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
i40e_add_one_ethtool_stat(u64 * data,void * pointer,const struct i40e_stats * stat)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
__i40e_add_ethtool_stats(u64 ** data,void * pointer,const struct i40e_stats stats[],const unsigned int size)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, 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
i40e_add_queue_stats(u64 ** data,struct i40e_ring * ring)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. 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(&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(&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 **/
__i40e_add_stat_strings(u8 ** p,const struct i40e_stats stats[],const unsigned int size,...)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 **/
i40e_partition_setting_complaint(struct i40e_pf * pf)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 **/
i40e_phy_type_to_ethtool(struct i40e_pf * pf,struct ethtool_link_ksettings * ks)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 **/
i40e_get_settings_link_up_fec(u8 req_fec_info,struct ethtool_link_ksettings * ks)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 **/
i40e_get_settings_link_up(struct i40e_hw * hw,struct ethtool_link_ksettings * ks,struct net_device * netdev,struct i40e_pf * pf)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 **/
i40e_get_settings_link_down(struct i40e_hw * hw,struct ethtool_link_ksettings * ks,struct i40e_pf * pf)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 **/
i40e_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * ks)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
i40e_speed_to_link_speed(__u32 speed,const struct ethtool_link_ksettings * ks)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 **/
i40e_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * ks)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 int timeout = 50;
1230 int status = 0;
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(©_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(©_ks.base, &safe_ks.base,
1290 sizeof(struct ethtool_link_settings))) {
1291 netdev_err(netdev, "Only speed and autoneg are supported.\n");
1292 return -EOPNOTSUPP;
1293 }
1294
1295 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1296 timeout--;
1297 if (!timeout)
1298 return -EBUSY;
1299 usleep_range(1000, 2000);
1300 }
1301
1302 /* Get the current phy config */
1303 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1304 NULL);
1305 if (status) {
1306 err = -EAGAIN;
1307 goto done;
1308 }
1309
1310 /* Copy abilities to config in case autoneg is not
1311 * set below
1312 */
1313 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1314 config.abilities = abilities.abilities;
1315
1316 /* Check autoneg */
1317 if (autoneg == AUTONEG_ENABLE) {
1318 /* If autoneg was not already enabled */
1319 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1320 /* If autoneg is not supported, return error */
1321 if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1322 supported,
1323 Autoneg)) {
1324 netdev_info(netdev, "Autoneg not supported on this phy\n");
1325 err = -EINVAL;
1326 goto done;
1327 }
1328 /* Autoneg is allowed to change */
1329 config.abilities = abilities.abilities |
1330 I40E_AQ_PHY_ENABLE_AN;
1331 autoneg_changed = true;
1332 }
1333 } else {
1334 /* If autoneg is currently enabled */
1335 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1336 /* If autoneg is supported 10GBASE_T is the only PHY
1337 * that can disable it, so otherwise return error
1338 */
1339 if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1340 supported,
1341 Autoneg) &&
1342 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
1343 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1344 err = -EINVAL;
1345 goto done;
1346 }
1347 /* Autoneg is allowed to change */
1348 config.abilities = abilities.abilities &
1349 ~I40E_AQ_PHY_ENABLE_AN;
1350 autoneg_changed = true;
1351 }
1352 }
1353
1354 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1355 100baseT_Full))
1356 config.link_speed |= I40E_LINK_SPEED_100MB;
1357 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1358 1000baseT_Full) ||
1359 ethtool_link_ksettings_test_link_mode(ks, advertising,
1360 1000baseX_Full) ||
1361 ethtool_link_ksettings_test_link_mode(ks, advertising,
1362 1000baseKX_Full))
1363 config.link_speed |= I40E_LINK_SPEED_1GB;
1364 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1365 10000baseT_Full) ||
1366 ethtool_link_ksettings_test_link_mode(ks, advertising,
1367 10000baseKX4_Full) ||
1368 ethtool_link_ksettings_test_link_mode(ks, advertising,
1369 10000baseKR_Full) ||
1370 ethtool_link_ksettings_test_link_mode(ks, advertising,
1371 10000baseCR_Full) ||
1372 ethtool_link_ksettings_test_link_mode(ks, advertising,
1373 10000baseSR_Full) ||
1374 ethtool_link_ksettings_test_link_mode(ks, advertising,
1375 10000baseLR_Full))
1376 config.link_speed |= I40E_LINK_SPEED_10GB;
1377 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1378 2500baseT_Full))
1379 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1380 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1381 5000baseT_Full))
1382 config.link_speed |= I40E_LINK_SPEED_5GB;
1383 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1384 20000baseKR2_Full))
1385 config.link_speed |= I40E_LINK_SPEED_20GB;
1386 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1387 25000baseCR_Full) ||
1388 ethtool_link_ksettings_test_link_mode(ks, advertising,
1389 25000baseKR_Full) ||
1390 ethtool_link_ksettings_test_link_mode(ks, advertising,
1391 25000baseSR_Full))
1392 config.link_speed |= I40E_LINK_SPEED_25GB;
1393 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1394 40000baseKR4_Full) ||
1395 ethtool_link_ksettings_test_link_mode(ks, advertising,
1396 40000baseCR4_Full) ||
1397 ethtool_link_ksettings_test_link_mode(ks, advertising,
1398 40000baseSR4_Full) ||
1399 ethtool_link_ksettings_test_link_mode(ks, advertising,
1400 40000baseLR4_Full))
1401 config.link_speed |= I40E_LINK_SPEED_40GB;
1402
1403 /* Autonegotiation must be disabled to change speed */
1404 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) &&
1405 (autoneg == AUTONEG_DISABLE ||
1406 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) {
1407 link_speed = i40e_speed_to_link_speed(speed, ks);
1408 if (link_speed == I40E_LINK_SPEED_UNKNOWN) {
1409 netdev_info(netdev, "Given speed is not supported\n");
1410 err = -EOPNOTSUPP;
1411 goto done;
1412 } else {
1413 config.link_speed = link_speed;
1414 }
1415 } else {
1416 if (safe_ks.base.speed != speed) {
1417 netdev_info(netdev,
1418 "Unable to set speed, disable autoneg\n");
1419 err = -EOPNOTSUPP;
1420 goto done;
1421 }
1422 }
1423
1424 /* If speed didn't get set, set it to what it currently is.
1425 * This is needed because if advertise is 0 (as it is when autoneg
1426 * is disabled) then speed won't get set.
1427 */
1428 if (!config.link_speed)
1429 config.link_speed = abilities.link_speed;
1430 if (autoneg_changed || abilities.link_speed != config.link_speed) {
1431 /* copy over the rest of the abilities */
1432 config.phy_type = abilities.phy_type;
1433 config.phy_type_ext = abilities.phy_type_ext;
1434 config.eee_capability = abilities.eee_capability;
1435 config.eeer = abilities.eeer_val;
1436 config.low_power_ctrl = abilities.d3_lpan;
1437 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1438 I40E_AQ_PHY_FEC_CONFIG_MASK;
1439
1440 /* save the requested speeds */
1441 hw->phy.link_info.requested_speeds = config.link_speed;
1442 /* set link and auto negotiation so changes take effect */
1443 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1444 /* If link is up put link down */
1445 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1446 /* Tell the OS link is going down, the link will go
1447 * back up when fw says it is ready asynchronously
1448 */
1449 i40e_print_link_message(vsi, false);
1450 netif_carrier_off(netdev);
1451 netif_tx_stop_all_queues(netdev);
1452 }
1453
1454 /* make the aq call */
1455 status = i40e_aq_set_phy_config(hw, &config, NULL);
1456 if (status) {
1457 netdev_info(netdev,
1458 "Set phy config failed, err %pe aq_err %s\n",
1459 ERR_PTR(status),
1460 i40e_aq_str(hw, hw->aq.asq_last_status));
1461 err = -EAGAIN;
1462 goto done;
1463 }
1464
1465 status = i40e_update_link_info(hw);
1466 if (status)
1467 netdev_dbg(netdev,
1468 "Updating link info failed with err %pe aq_err %s\n",
1469 ERR_PTR(status),
1470 i40e_aq_str(hw, hw->aq.asq_last_status));
1471
1472 } else {
1473 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1474 }
1475
1476 done:
1477 clear_bit(__I40E_CONFIG_BUSY, pf->state);
1478
1479 return err;
1480 }
1481
i40e_set_fec_cfg(struct net_device * netdev,u8 fec_cfg)1482 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1483 {
1484 struct i40e_netdev_priv *np = netdev_priv(netdev);
1485 struct i40e_aq_get_phy_abilities_resp abilities;
1486 struct i40e_pf *pf = np->vsi->back;
1487 struct i40e_hw *hw = &pf->hw;
1488 int status = 0;
1489 u32 flags = 0;
1490 int err = 0;
1491
1492 flags = READ_ONCE(pf->flags);
1493 i40e_set_fec_in_flags(fec_cfg, &flags);
1494
1495 /* Get the current phy config */
1496 memset(&abilities, 0, sizeof(abilities));
1497 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1498 NULL);
1499 if (status) {
1500 err = -EAGAIN;
1501 goto done;
1502 }
1503
1504 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1505 struct i40e_aq_set_phy_config config;
1506
1507 memset(&config, 0, sizeof(config));
1508 config.phy_type = abilities.phy_type;
1509 config.abilities = abilities.abilities |
1510 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1511 config.phy_type_ext = abilities.phy_type_ext;
1512 config.link_speed = abilities.link_speed;
1513 config.eee_capability = abilities.eee_capability;
1514 config.eeer = abilities.eeer_val;
1515 config.low_power_ctrl = abilities.d3_lpan;
1516 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1517 status = i40e_aq_set_phy_config(hw, &config, NULL);
1518 if (status) {
1519 netdev_info(netdev,
1520 "Set phy config failed, err %pe aq_err %s\n",
1521 ERR_PTR(status),
1522 i40e_aq_str(hw, hw->aq.asq_last_status));
1523 err = -EAGAIN;
1524 goto done;
1525 }
1526 pf->flags = flags;
1527 status = i40e_update_link_info(hw);
1528 if (status)
1529 /* debug level message only due to relation to the link
1530 * itself rather than to the FEC settings
1531 * (e.g. no physical connection etc.)
1532 */
1533 netdev_dbg(netdev,
1534 "Updating link info failed with err %pe aq_err %s\n",
1535 ERR_PTR(status),
1536 i40e_aq_str(hw, hw->aq.asq_last_status));
1537 }
1538
1539 done:
1540 return err;
1541 }
1542
i40e_get_fec_param(struct net_device * netdev,struct ethtool_fecparam * fecparam)1543 static int i40e_get_fec_param(struct net_device *netdev,
1544 struct ethtool_fecparam *fecparam)
1545 {
1546 struct i40e_netdev_priv *np = netdev_priv(netdev);
1547 struct i40e_aq_get_phy_abilities_resp abilities;
1548 struct i40e_pf *pf = np->vsi->back;
1549 struct i40e_hw *hw = &pf->hw;
1550 int status = 0;
1551 int err = 0;
1552 u8 fec_cfg;
1553
1554 /* Get the current phy config */
1555 memset(&abilities, 0, sizeof(abilities));
1556 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1557 NULL);
1558 if (status) {
1559 err = -EAGAIN;
1560 goto done;
1561 }
1562
1563 fecparam->fec = 0;
1564 fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1565 if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1566 fecparam->fec |= ETHTOOL_FEC_AUTO;
1567 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1568 I40E_AQ_SET_FEC_ABILITY_RS))
1569 fecparam->fec |= ETHTOOL_FEC_RS;
1570 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1571 I40E_AQ_SET_FEC_ABILITY_KR))
1572 fecparam->fec |= ETHTOOL_FEC_BASER;
1573 if (fec_cfg == 0)
1574 fecparam->fec |= ETHTOOL_FEC_OFF;
1575
1576 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1577 fecparam->active_fec = ETHTOOL_FEC_BASER;
1578 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1579 fecparam->active_fec = ETHTOOL_FEC_RS;
1580 else
1581 fecparam->active_fec = ETHTOOL_FEC_OFF;
1582 done:
1583 return err;
1584 }
1585
i40e_set_fec_param(struct net_device * netdev,struct ethtool_fecparam * fecparam)1586 static int i40e_set_fec_param(struct net_device *netdev,
1587 struct ethtool_fecparam *fecparam)
1588 {
1589 struct i40e_netdev_priv *np = netdev_priv(netdev);
1590 struct i40e_pf *pf = np->vsi->back;
1591 struct i40e_hw *hw = &pf->hw;
1592 u8 fec_cfg = 0;
1593
1594 if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1595 hw->device_id != I40E_DEV_ID_25G_B &&
1596 hw->device_id != I40E_DEV_ID_KX_X722)
1597 return -EPERM;
1598
1599 if (hw->mac.type == I40E_MAC_X722 &&
1600 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) {
1601 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1602 return -EOPNOTSUPP;
1603 }
1604
1605 switch (fecparam->fec) {
1606 case ETHTOOL_FEC_AUTO:
1607 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1608 break;
1609 case ETHTOOL_FEC_RS:
1610 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1611 I40E_AQ_SET_FEC_ABILITY_RS);
1612 break;
1613 case ETHTOOL_FEC_BASER:
1614 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1615 I40E_AQ_SET_FEC_ABILITY_KR);
1616 break;
1617 case ETHTOOL_FEC_OFF:
1618 case ETHTOOL_FEC_NONE:
1619 fec_cfg = 0;
1620 break;
1621 default:
1622 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1623 fecparam->fec);
1624 return -EINVAL;
1625 }
1626
1627 return i40e_set_fec_cfg(netdev, fec_cfg);
1628 }
1629
i40e_nway_reset(struct net_device * netdev)1630 static int i40e_nway_reset(struct net_device *netdev)
1631 {
1632 /* restart autonegotiation */
1633 struct i40e_netdev_priv *np = netdev_priv(netdev);
1634 struct i40e_pf *pf = np->vsi->back;
1635 struct i40e_hw *hw = &pf->hw;
1636 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1637 int ret = 0;
1638
1639 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1640 if (ret) {
1641 netdev_info(netdev, "link restart failed, err %pe aq_err %s\n",
1642 ERR_PTR(ret),
1643 i40e_aq_str(hw, hw->aq.asq_last_status));
1644 return -EIO;
1645 }
1646
1647 return 0;
1648 }
1649
1650 /**
1651 * i40e_get_pauseparam - Get Flow Control status
1652 * @netdev: netdevice structure
1653 * @pause: buffer to return pause parameters
1654 *
1655 * Return tx/rx-pause status
1656 **/
i40e_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)1657 static void i40e_get_pauseparam(struct net_device *netdev,
1658 struct ethtool_pauseparam *pause)
1659 {
1660 struct i40e_netdev_priv *np = netdev_priv(netdev);
1661 struct i40e_pf *pf = np->vsi->back;
1662 struct i40e_hw *hw = &pf->hw;
1663 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1664 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1665
1666 pause->autoneg =
1667 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1668 AUTONEG_ENABLE : AUTONEG_DISABLE);
1669
1670 /* PFC enabled so report LFC as off */
1671 if (dcbx_cfg->pfc.pfcenable) {
1672 pause->rx_pause = 0;
1673 pause->tx_pause = 0;
1674 return;
1675 }
1676
1677 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1678 pause->rx_pause = 1;
1679 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1680 pause->tx_pause = 1;
1681 } else if (hw->fc.current_mode == I40E_FC_FULL) {
1682 pause->rx_pause = 1;
1683 pause->tx_pause = 1;
1684 }
1685 }
1686
1687 /**
1688 * i40e_set_pauseparam - Set Flow Control parameter
1689 * @netdev: network interface device structure
1690 * @pause: return tx/rx flow control status
1691 **/
i40e_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)1692 static int i40e_set_pauseparam(struct net_device *netdev,
1693 struct ethtool_pauseparam *pause)
1694 {
1695 struct i40e_netdev_priv *np = netdev_priv(netdev);
1696 struct i40e_pf *pf = np->vsi->back;
1697 struct i40e_vsi *vsi = np->vsi;
1698 struct i40e_hw *hw = &pf->hw;
1699 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1700 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1701 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1702 u8 aq_failures;
1703 int err = 0;
1704 int status;
1705 u32 is_an;
1706
1707 /* Changing the port's flow control is not supported if this isn't the
1708 * port's controlling PF
1709 */
1710 if (hw->partition_id != 1) {
1711 i40e_partition_setting_complaint(pf);
1712 return -EOPNOTSUPP;
1713 }
1714
1715 if (vsi != pf->vsi[pf->lan_vsi])
1716 return -EOPNOTSUPP;
1717
1718 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1719 if (pause->autoneg != is_an) {
1720 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1721 return -EOPNOTSUPP;
1722 }
1723
1724 /* If we have link and don't have autoneg */
1725 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1726 /* Send message that it might not necessarily work*/
1727 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1728 }
1729
1730 if (dcbx_cfg->pfc.pfcenable) {
1731 netdev_info(netdev,
1732 "Priority flow control enabled. Cannot set link flow control.\n");
1733 return -EOPNOTSUPP;
1734 }
1735
1736 if (pause->rx_pause && pause->tx_pause)
1737 hw->fc.requested_mode = I40E_FC_FULL;
1738 else if (pause->rx_pause && !pause->tx_pause)
1739 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1740 else if (!pause->rx_pause && pause->tx_pause)
1741 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1742 else if (!pause->rx_pause && !pause->tx_pause)
1743 hw->fc.requested_mode = I40E_FC_NONE;
1744 else
1745 return -EINVAL;
1746
1747 /* Tell the OS link is going down, the link will go back up when fw
1748 * says it is ready asynchronously
1749 */
1750 i40e_print_link_message(vsi, false);
1751 netif_carrier_off(netdev);
1752 netif_tx_stop_all_queues(netdev);
1753
1754 /* Set the fc mode and only restart an if link is up*/
1755 status = i40e_set_fc(hw, &aq_failures, link_up);
1756
1757 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1758 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n",
1759 ERR_PTR(status),
1760 i40e_aq_str(hw, hw->aq.asq_last_status));
1761 err = -EAGAIN;
1762 }
1763 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1764 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n",
1765 ERR_PTR(status),
1766 i40e_aq_str(hw, hw->aq.asq_last_status));
1767 err = -EAGAIN;
1768 }
1769 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1770 netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n",
1771 ERR_PTR(status),
1772 i40e_aq_str(hw, hw->aq.asq_last_status));
1773 err = -EAGAIN;
1774 }
1775
1776 if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1777 /* Give it a little more time to try to come back */
1778 msleep(75);
1779 if (!test_bit(__I40E_DOWN, pf->state))
1780 return i40e_nway_reset(netdev);
1781 }
1782
1783 return err;
1784 }
1785
i40e_get_msglevel(struct net_device * netdev)1786 static u32 i40e_get_msglevel(struct net_device *netdev)
1787 {
1788 struct i40e_netdev_priv *np = netdev_priv(netdev);
1789 struct i40e_pf *pf = np->vsi->back;
1790 u32 debug_mask = pf->hw.debug_mask;
1791
1792 if (debug_mask)
1793 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1794
1795 return pf->msg_enable;
1796 }
1797
i40e_set_msglevel(struct net_device * netdev,u32 data)1798 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1799 {
1800 struct i40e_netdev_priv *np = netdev_priv(netdev);
1801 struct i40e_pf *pf = np->vsi->back;
1802
1803 if (I40E_DEBUG_USER & data)
1804 pf->hw.debug_mask = data;
1805 else
1806 pf->msg_enable = data;
1807 }
1808
i40e_get_regs_len(struct net_device * netdev)1809 static int i40e_get_regs_len(struct net_device *netdev)
1810 {
1811 int reg_count = 0;
1812 int i;
1813
1814 for (i = 0; i40e_reg_list[i].offset != 0; i++)
1815 reg_count += i40e_reg_list[i].elements;
1816
1817 return reg_count * sizeof(u32);
1818 }
1819
i40e_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)1820 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1821 void *p)
1822 {
1823 struct i40e_netdev_priv *np = netdev_priv(netdev);
1824 struct i40e_pf *pf = np->vsi->back;
1825 struct i40e_hw *hw = &pf->hw;
1826 u32 *reg_buf = p;
1827 unsigned int i, j, ri;
1828 u32 reg;
1829
1830 /* Tell ethtool which driver-version-specific regs output we have.
1831 *
1832 * At some point, if we have ethtool doing special formatting of
1833 * this data, it will rely on this version number to know how to
1834 * interpret things. Hence, this needs to be updated if/when the
1835 * diags register table is changed.
1836 */
1837 regs->version = 1;
1838
1839 /* loop through the diags reg table for what to print */
1840 ri = 0;
1841 for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1842 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1843 reg = i40e_reg_list[i].offset
1844 + (j * i40e_reg_list[i].stride);
1845 reg_buf[ri++] = rd32(hw, reg);
1846 }
1847 }
1848
1849 }
1850
i40e_get_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)1851 static int i40e_get_eeprom(struct net_device *netdev,
1852 struct ethtool_eeprom *eeprom, u8 *bytes)
1853 {
1854 struct i40e_netdev_priv *np = netdev_priv(netdev);
1855 struct i40e_hw *hw = &np->vsi->back->hw;
1856 struct i40e_pf *pf = np->vsi->back;
1857 int ret_val = 0, len, offset;
1858 u8 *eeprom_buff;
1859 u16 i, sectors;
1860 bool last;
1861 u32 magic;
1862
1863 #define I40E_NVM_SECTOR_SIZE 4096
1864 if (eeprom->len == 0)
1865 return -EINVAL;
1866
1867 /* check for NVMUpdate access method */
1868 magic = hw->vendor_id | (hw->device_id << 16);
1869 if (eeprom->magic && eeprom->magic != magic) {
1870 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1871 int errno = 0;
1872
1873 /* make sure it is the right magic for NVMUpdate */
1874 if ((eeprom->magic >> 16) != hw->device_id)
1875 errno = -EINVAL;
1876 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1877 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1878 errno = -EBUSY;
1879 else
1880 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1881
1882 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1883 dev_info(&pf->pdev->dev,
1884 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1885 ret_val, hw->aq.asq_last_status, errno,
1886 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1887 cmd->offset, cmd->data_size);
1888
1889 return errno;
1890 }
1891
1892 /* normal ethtool get_eeprom support */
1893 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1894
1895 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1896 if (!eeprom_buff)
1897 return -ENOMEM;
1898
1899 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1900 if (ret_val) {
1901 dev_info(&pf->pdev->dev,
1902 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1903 ret_val, hw->aq.asq_last_status);
1904 goto free_buff;
1905 }
1906
1907 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1908 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1909 len = I40E_NVM_SECTOR_SIZE;
1910 last = false;
1911 for (i = 0; i < sectors; i++) {
1912 if (i == (sectors - 1)) {
1913 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1914 last = true;
1915 }
1916 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1917 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1918 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1919 last, NULL);
1920 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1921 dev_info(&pf->pdev->dev,
1922 "read NVM failed, invalid offset 0x%x\n",
1923 offset);
1924 break;
1925 } else if (ret_val &&
1926 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1927 dev_info(&pf->pdev->dev,
1928 "read NVM failed, access, offset 0x%x\n",
1929 offset);
1930 break;
1931 } else if (ret_val) {
1932 dev_info(&pf->pdev->dev,
1933 "read NVM failed offset %d err=%d status=0x%x\n",
1934 offset, ret_val, hw->aq.asq_last_status);
1935 break;
1936 }
1937 }
1938
1939 i40e_release_nvm(hw);
1940 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1941 free_buff:
1942 kfree(eeprom_buff);
1943 return ret_val;
1944 }
1945
i40e_get_eeprom_len(struct net_device * netdev)1946 static int i40e_get_eeprom_len(struct net_device *netdev)
1947 {
1948 struct i40e_netdev_priv *np = netdev_priv(netdev);
1949 struct i40e_hw *hw = &np->vsi->back->hw;
1950 u32 val;
1951
1952 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1953 if (hw->mac.type == I40E_MAC_X722) {
1954 val = X722_EEPROM_SCOPE_LIMIT + 1;
1955 return val;
1956 }
1957 val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1958 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1959 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1960 /* register returns value in power of 2, 64Kbyte chunks. */
1961 val = (64 * 1024) * BIT(val);
1962 return val;
1963 }
1964
i40e_set_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)1965 static int i40e_set_eeprom(struct net_device *netdev,
1966 struct ethtool_eeprom *eeprom, u8 *bytes)
1967 {
1968 struct i40e_netdev_priv *np = netdev_priv(netdev);
1969 struct i40e_hw *hw = &np->vsi->back->hw;
1970 struct i40e_pf *pf = np->vsi->back;
1971 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1972 int ret_val = 0;
1973 int errno = 0;
1974 u32 magic;
1975
1976 /* normal ethtool set_eeprom is not supported */
1977 magic = hw->vendor_id | (hw->device_id << 16);
1978 if (eeprom->magic == magic)
1979 errno = -EOPNOTSUPP;
1980 /* check for NVMUpdate access method */
1981 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1982 errno = -EINVAL;
1983 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1984 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1985 errno = -EBUSY;
1986 else
1987 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1988
1989 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1990 dev_info(&pf->pdev->dev,
1991 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1992 ret_val, hw->aq.asq_last_status, errno,
1993 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1994 cmd->offset, cmd->data_size);
1995
1996 return errno;
1997 }
1998
i40e_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)1999 static void i40e_get_drvinfo(struct net_device *netdev,
2000 struct ethtool_drvinfo *drvinfo)
2001 {
2002 struct i40e_netdev_priv *np = netdev_priv(netdev);
2003 struct i40e_vsi *vsi = np->vsi;
2004 struct i40e_pf *pf = vsi->back;
2005
2006 strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
2007 strscpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
2008 sizeof(drvinfo->fw_version));
2009 strscpy(drvinfo->bus_info, pci_name(pf->pdev),
2010 sizeof(drvinfo->bus_info));
2011 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
2012 if (pf->hw.pf_id == 0)
2013 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
2014 }
2015
i40e_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)2016 static void i40e_get_ringparam(struct net_device *netdev,
2017 struct ethtool_ringparam *ring,
2018 struct kernel_ethtool_ringparam *kernel_ring,
2019 struct netlink_ext_ack *extack)
2020 {
2021 struct i40e_netdev_priv *np = netdev_priv(netdev);
2022 struct i40e_pf *pf = np->vsi->back;
2023 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
2024
2025 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
2026 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
2027 ring->rx_mini_max_pending = 0;
2028 ring->rx_jumbo_max_pending = 0;
2029 ring->rx_pending = vsi->rx_rings[0]->count;
2030 ring->tx_pending = vsi->tx_rings[0]->count;
2031 ring->rx_mini_pending = 0;
2032 ring->rx_jumbo_pending = 0;
2033 }
2034
i40e_active_tx_ring_index(struct i40e_vsi * vsi,u16 index)2035 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
2036 {
2037 if (i40e_enabled_xdp_vsi(vsi)) {
2038 return index < vsi->num_queue_pairs ||
2039 (index >= vsi->alloc_queue_pairs &&
2040 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
2041 }
2042
2043 return index < vsi->num_queue_pairs;
2044 }
2045
i40e_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)2046 static int i40e_set_ringparam(struct net_device *netdev,
2047 struct ethtool_ringparam *ring,
2048 struct kernel_ethtool_ringparam *kernel_ring,
2049 struct netlink_ext_ack *extack)
2050 {
2051 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
2052 struct i40e_netdev_priv *np = netdev_priv(netdev);
2053 struct i40e_hw *hw = &np->vsi->back->hw;
2054 struct i40e_vsi *vsi = np->vsi;
2055 struct i40e_pf *pf = vsi->back;
2056 u32 new_rx_count, new_tx_count;
2057 u16 tx_alloc_queue_pairs;
2058 int timeout = 50;
2059 int i, err = 0;
2060
2061 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
2062 return -EINVAL;
2063
2064 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
2065 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
2066 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
2067 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
2068 netdev_info(netdev,
2069 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
2070 ring->tx_pending, ring->rx_pending,
2071 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
2072 return -EINVAL;
2073 }
2074
2075 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2076 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2077
2078 /* if nothing to do return success */
2079 if ((new_tx_count == vsi->tx_rings[0]->count) &&
2080 (new_rx_count == vsi->rx_rings[0]->count))
2081 return 0;
2082
2083 /* If there is a AF_XDP page pool attached to any of Rx rings,
2084 * disallow changing the number of descriptors -- regardless
2085 * if the netdev is running or not.
2086 */
2087 if (i40e_xsk_any_rx_ring_enabled(vsi))
2088 return -EBUSY;
2089
2090 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
2091 timeout--;
2092 if (!timeout)
2093 return -EBUSY;
2094 usleep_range(1000, 2000);
2095 }
2096
2097 if (!netif_running(vsi->netdev)) {
2098 /* simple case - set for the next time the netdev is started */
2099 for (i = 0; i < vsi->num_queue_pairs; i++) {
2100 vsi->tx_rings[i]->count = new_tx_count;
2101 vsi->rx_rings[i]->count = new_rx_count;
2102 if (i40e_enabled_xdp_vsi(vsi))
2103 vsi->xdp_rings[i]->count = new_tx_count;
2104 }
2105 vsi->num_tx_desc = new_tx_count;
2106 vsi->num_rx_desc = new_rx_count;
2107 goto done;
2108 }
2109
2110 /* We can't just free everything and then setup again,
2111 * because the ISRs in MSI-X mode get passed pointers
2112 * to the Tx and Rx ring structs.
2113 */
2114
2115 /* alloc updated Tx and XDP Tx resources */
2116 tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2117 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2118 if (new_tx_count != vsi->tx_rings[0]->count) {
2119 netdev_info(netdev,
2120 "Changing Tx descriptor count from %d to %d.\n",
2121 vsi->tx_rings[0]->count, new_tx_count);
2122 tx_rings = kcalloc(tx_alloc_queue_pairs,
2123 sizeof(struct i40e_ring), GFP_KERNEL);
2124 if (!tx_rings) {
2125 err = -ENOMEM;
2126 goto done;
2127 }
2128
2129 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2130 if (!i40e_active_tx_ring_index(vsi, i))
2131 continue;
2132
2133 tx_rings[i] = *vsi->tx_rings[i];
2134 tx_rings[i].count = new_tx_count;
2135 /* the desc and bi pointers will be reallocated in the
2136 * setup call
2137 */
2138 tx_rings[i].desc = NULL;
2139 tx_rings[i].rx_bi = NULL;
2140 err = i40e_setup_tx_descriptors(&tx_rings[i]);
2141 if (err) {
2142 while (i) {
2143 i--;
2144 if (!i40e_active_tx_ring_index(vsi, i))
2145 continue;
2146 i40e_free_tx_resources(&tx_rings[i]);
2147 }
2148 kfree(tx_rings);
2149 tx_rings = NULL;
2150
2151 goto done;
2152 }
2153 }
2154 }
2155
2156 /* alloc updated Rx resources */
2157 if (new_rx_count != vsi->rx_rings[0]->count) {
2158 netdev_info(netdev,
2159 "Changing Rx descriptor count from %d to %d\n",
2160 vsi->rx_rings[0]->count, new_rx_count);
2161 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2162 sizeof(struct i40e_ring), GFP_KERNEL);
2163 if (!rx_rings) {
2164 err = -ENOMEM;
2165 goto free_tx;
2166 }
2167
2168 for (i = 0; i < vsi->num_queue_pairs; i++) {
2169 u16 unused;
2170
2171 /* clone ring and setup updated count */
2172 rx_rings[i] = *vsi->rx_rings[i];
2173 rx_rings[i].count = new_rx_count;
2174 /* the desc and bi pointers will be reallocated in the
2175 * setup call
2176 */
2177 rx_rings[i].desc = NULL;
2178 rx_rings[i].rx_bi = NULL;
2179 /* Clear cloned XDP RX-queue info before setup call */
2180 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2181 /* this is to allow wr32 to have something to write to
2182 * during early allocation of Rx buffers
2183 */
2184 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2185 err = i40e_setup_rx_descriptors(&rx_rings[i]);
2186 if (err)
2187 goto rx_unwind;
2188
2189 /* now allocate the Rx buffers to make sure the OS
2190 * has enough memory, any failure here means abort
2191 */
2192 unused = I40E_DESC_UNUSED(&rx_rings[i]);
2193 err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2194 rx_unwind:
2195 if (err) {
2196 do {
2197 i40e_free_rx_resources(&rx_rings[i]);
2198 } while (i--);
2199 kfree(rx_rings);
2200 rx_rings = NULL;
2201
2202 goto free_tx;
2203 }
2204 }
2205 }
2206
2207 /* Bring interface down, copy in the new ring info,
2208 * then restore the interface
2209 */
2210 i40e_down(vsi);
2211
2212 if (tx_rings) {
2213 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2214 if (i40e_active_tx_ring_index(vsi, i)) {
2215 i40e_free_tx_resources(vsi->tx_rings[i]);
2216 *vsi->tx_rings[i] = tx_rings[i];
2217 }
2218 }
2219 kfree(tx_rings);
2220 tx_rings = NULL;
2221 }
2222
2223 if (rx_rings) {
2224 for (i = 0; i < vsi->num_queue_pairs; i++) {
2225 i40e_free_rx_resources(vsi->rx_rings[i]);
2226 /* get the real tail offset */
2227 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2228 /* this is to fake out the allocation routine
2229 * into thinking it has to realloc everything
2230 * but the recycling logic will let us re-use
2231 * the buffers allocated above
2232 */
2233 rx_rings[i].next_to_use = 0;
2234 rx_rings[i].next_to_clean = 0;
2235 rx_rings[i].next_to_alloc = 0;
2236 /* do a struct copy */
2237 *vsi->rx_rings[i] = rx_rings[i];
2238 }
2239 kfree(rx_rings);
2240 rx_rings = NULL;
2241 }
2242
2243 vsi->num_tx_desc = new_tx_count;
2244 vsi->num_rx_desc = new_rx_count;
2245 i40e_up(vsi);
2246
2247 free_tx:
2248 /* error cleanup if the Rx allocations failed after getting Tx */
2249 if (tx_rings) {
2250 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2251 if (i40e_active_tx_ring_index(vsi, i))
2252 i40e_free_tx_resources(vsi->tx_rings[i]);
2253 }
2254 kfree(tx_rings);
2255 tx_rings = NULL;
2256 }
2257
2258 done:
2259 clear_bit(__I40E_CONFIG_BUSY, pf->state);
2260
2261 return err;
2262 }
2263
2264 /**
2265 * i40e_get_stats_count - return the stats count for a device
2266 * @netdev: the netdev to return the count for
2267 *
2268 * Returns the total number of statistics for this netdev. Note that even
2269 * though this is a function, it is required that the count for a specific
2270 * netdev must never change. Basing the count on static values such as the
2271 * maximum number of queues or the device type is ok. However, the API for
2272 * obtaining stats is *not* safe against changes based on non-static
2273 * values such as the *current* number of queues, or runtime flags.
2274 *
2275 * If a statistic is not always enabled, return it as part of the count
2276 * anyways, always return its string, and report its value as zero.
2277 **/
i40e_get_stats_count(struct net_device * netdev)2278 static int i40e_get_stats_count(struct net_device *netdev)
2279 {
2280 struct i40e_netdev_priv *np = netdev_priv(netdev);
2281 struct i40e_vsi *vsi = np->vsi;
2282 struct i40e_pf *pf = vsi->back;
2283 int stats_len;
2284
2285 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2286 stats_len = I40E_PF_STATS_LEN;
2287 else
2288 stats_len = I40E_VSI_STATS_LEN;
2289
2290 /* The number of stats reported for a given net_device must remain
2291 * constant throughout the life of that device.
2292 *
2293 * This is because the API for obtaining the size, strings, and stats
2294 * is spread out over three separate ethtool ioctls. There is no safe
2295 * way to lock the number of stats across these calls, so we must
2296 * assume that they will never change.
2297 *
2298 * Due to this, we report the maximum number of queues, even if not
2299 * every queue is currently configured. Since we always allocate
2300 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2301 * works because the num_tx_queues is set at device creation and never
2302 * changes.
2303 */
2304 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2305
2306 return stats_len;
2307 }
2308
i40e_get_sset_count(struct net_device * netdev,int sset)2309 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2310 {
2311 struct i40e_netdev_priv *np = netdev_priv(netdev);
2312 struct i40e_vsi *vsi = np->vsi;
2313 struct i40e_pf *pf = vsi->back;
2314
2315 switch (sset) {
2316 case ETH_SS_TEST:
2317 return I40E_TEST_LEN;
2318 case ETH_SS_STATS:
2319 return i40e_get_stats_count(netdev);
2320 case ETH_SS_PRIV_FLAGS:
2321 return I40E_PRIV_FLAGS_STR_LEN +
2322 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2323 default:
2324 return -EOPNOTSUPP;
2325 }
2326 }
2327
2328 /**
2329 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure
2330 * @tc: the TC statistics in VEB structure (veb->tc_stats)
2331 * @i: the index of traffic class in (veb->tc_stats) structure to copy
2332 *
2333 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to
2334 * one dimensional structure i40e_cp_veb_tc_stats.
2335 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC
2336 * statistics for the given TC.
2337 **/
2338 static struct i40e_cp_veb_tc_stats
i40e_get_veb_tc_stats(struct i40e_veb_tc_stats * tc,unsigned int i)2339 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i)
2340 {
2341 struct i40e_cp_veb_tc_stats veb_tc = {
2342 .tc_rx_packets = tc->tc_rx_packets[i],
2343 .tc_rx_bytes = tc->tc_rx_bytes[i],
2344 .tc_tx_packets = tc->tc_tx_packets[i],
2345 .tc_tx_bytes = tc->tc_tx_bytes[i],
2346 };
2347
2348 return veb_tc;
2349 }
2350
2351 /**
2352 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2353 * @pf: the PF device structure
2354 * @i: the priority value to copy
2355 *
2356 * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2357 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2358 * of the PFC stats for the given priority.
2359 **/
2360 static inline struct i40e_pfc_stats
i40e_get_pfc_stats(struct i40e_pf * pf,unsigned int i)2361 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2362 {
2363 #define I40E_GET_PFC_STAT(stat, priority) \
2364 .stat = pf->stats.stat[priority]
2365
2366 struct i40e_pfc_stats pfc = {
2367 I40E_GET_PFC_STAT(priority_xon_rx, i),
2368 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2369 I40E_GET_PFC_STAT(priority_xon_tx, i),
2370 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2371 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2372 };
2373 return pfc;
2374 }
2375
2376 /**
2377 * i40e_get_ethtool_stats - copy stat values into supplied buffer
2378 * @netdev: the netdev to collect stats for
2379 * @stats: ethtool stats command structure
2380 * @data: ethtool supplied buffer
2381 *
2382 * Copy the stats values for this netdev into the buffer. Expects data to be
2383 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2384 * statistics must be copied in a static order, and the count must not change
2385 * for a given netdev. See i40e_get_stats_count for more details.
2386 *
2387 * If a statistic is not currently valid (such as a disabled queue), this
2388 * function reports its value as zero.
2389 **/
i40e_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)2390 static void i40e_get_ethtool_stats(struct net_device *netdev,
2391 struct ethtool_stats *stats, u64 *data)
2392 {
2393 struct i40e_netdev_priv *np = netdev_priv(netdev);
2394 struct i40e_vsi *vsi = np->vsi;
2395 struct i40e_pf *pf = vsi->back;
2396 struct i40e_veb *veb = NULL;
2397 unsigned int i;
2398 bool veb_stats;
2399 u64 *p = data;
2400
2401 i40e_update_stats(vsi);
2402
2403 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2404 i40e_gstrings_net_stats);
2405
2406 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2407
2408 rcu_read_lock();
2409 for (i = 0; i < netdev->num_tx_queues; i++) {
2410 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2411 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2412 }
2413 rcu_read_unlock();
2414
2415 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2416 goto check_data_pointer;
2417
2418 veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2419 (pf->lan_veb < I40E_MAX_VEB) &&
2420 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2421
2422 if (veb_stats) {
2423 veb = pf->veb[pf->lan_veb];
2424 i40e_update_veb_stats(veb);
2425 }
2426
2427 /* If veb stats aren't enabled, pass NULL instead of the veb so that
2428 * we initialize stats to zero and update the data pointer
2429 * intelligently
2430 */
2431 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2432 i40e_gstrings_veb_stats);
2433
2434 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2435 if (veb_stats) {
2436 struct i40e_cp_veb_tc_stats veb_tc =
2437 i40e_get_veb_tc_stats(&veb->tc_stats, i);
2438
2439 i40e_add_ethtool_stats(&data, &veb_tc,
2440 i40e_gstrings_veb_tc_stats);
2441 } else {
2442 i40e_add_ethtool_stats(&data, NULL,
2443 i40e_gstrings_veb_tc_stats);
2444 }
2445
2446 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2447
2448 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2449 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2450
2451 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2452 }
2453
2454 check_data_pointer:
2455 WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2456 "ethtool stats count mismatch!");
2457 }
2458
2459 /**
2460 * i40e_get_stat_strings - copy stat strings into supplied buffer
2461 * @netdev: the netdev to collect strings for
2462 * @data: supplied buffer to copy strings into
2463 *
2464 * Copy the strings related to stats for this netdev. Expects data to be
2465 * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2466 * strings must be copied in a static order and the total count must not
2467 * change for a given netdev. See i40e_get_stats_count for more details.
2468 **/
i40e_get_stat_strings(struct net_device * netdev,u8 * data)2469 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2470 {
2471 struct i40e_netdev_priv *np = netdev_priv(netdev);
2472 struct i40e_vsi *vsi = np->vsi;
2473 struct i40e_pf *pf = vsi->back;
2474 unsigned int i;
2475 u8 *p = data;
2476
2477 i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2478
2479 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2480
2481 for (i = 0; i < netdev->num_tx_queues; i++) {
2482 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2483 "tx", i);
2484 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2485 "rx", i);
2486 }
2487
2488 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2489 goto check_data_pointer;
2490
2491 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2492
2493 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2494 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2495
2496 i40e_add_stat_strings(&data, i40e_gstrings_stats);
2497
2498 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2499 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2500
2501 check_data_pointer:
2502 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2503 "stat strings count mismatch!");
2504 }
2505
i40e_get_priv_flag_strings(struct net_device * netdev,u8 * data)2506 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2507 {
2508 struct i40e_netdev_priv *np = netdev_priv(netdev);
2509 struct i40e_vsi *vsi = np->vsi;
2510 struct i40e_pf *pf = vsi->back;
2511 unsigned int i;
2512 u8 *p = data;
2513
2514 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++)
2515 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string);
2516 if (pf->hw.pf_id != 0)
2517 return;
2518 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++)
2519 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string);
2520 }
2521
i40e_get_strings(struct net_device * netdev,u32 stringset,u8 * data)2522 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2523 u8 *data)
2524 {
2525 switch (stringset) {
2526 case ETH_SS_TEST:
2527 memcpy(data, i40e_gstrings_test,
2528 I40E_TEST_LEN * ETH_GSTRING_LEN);
2529 break;
2530 case ETH_SS_STATS:
2531 i40e_get_stat_strings(netdev, data);
2532 break;
2533 case ETH_SS_PRIV_FLAGS:
2534 i40e_get_priv_flag_strings(netdev, data);
2535 break;
2536 default:
2537 break;
2538 }
2539 }
2540
i40e_get_ts_info(struct net_device * dev,struct ethtool_ts_info * info)2541 static int i40e_get_ts_info(struct net_device *dev,
2542 struct ethtool_ts_info *info)
2543 {
2544 struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2545
2546 /* only report HW timestamping if PTP is enabled */
2547 if (!(pf->flags & I40E_FLAG_PTP))
2548 return ethtool_op_get_ts_info(dev, info);
2549
2550 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2551 SOF_TIMESTAMPING_RX_SOFTWARE |
2552 SOF_TIMESTAMPING_SOFTWARE |
2553 SOF_TIMESTAMPING_TX_HARDWARE |
2554 SOF_TIMESTAMPING_RX_HARDWARE |
2555 SOF_TIMESTAMPING_RAW_HARDWARE;
2556
2557 if (pf->ptp_clock)
2558 info->phc_index = ptp_clock_index(pf->ptp_clock);
2559 else
2560 info->phc_index = -1;
2561
2562 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2563
2564 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2565 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2566 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2567 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2568
2569 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2570 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2571 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2572 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2573 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2574 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2575 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2576 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2577 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2578
2579 return 0;
2580 }
2581
i40e_link_test(struct net_device * netdev,u64 * data)2582 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2583 {
2584 struct i40e_netdev_priv *np = netdev_priv(netdev);
2585 struct i40e_pf *pf = np->vsi->back;
2586 bool link_up = false;
2587 int status;
2588
2589 netif_info(pf, hw, netdev, "link test\n");
2590 status = i40e_get_link_status(&pf->hw, &link_up);
2591 if (status) {
2592 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2593 *data = 1;
2594 return *data;
2595 }
2596
2597 if (link_up)
2598 *data = 0;
2599 else
2600 *data = 1;
2601
2602 return *data;
2603 }
2604
i40e_reg_test(struct net_device * netdev,u64 * data)2605 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2606 {
2607 struct i40e_netdev_priv *np = netdev_priv(netdev);
2608 struct i40e_pf *pf = np->vsi->back;
2609
2610 netif_info(pf, hw, netdev, "register test\n");
2611 *data = i40e_diag_reg_test(&pf->hw);
2612
2613 return *data;
2614 }
2615
i40e_eeprom_test(struct net_device * netdev,u64 * data)2616 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2617 {
2618 struct i40e_netdev_priv *np = netdev_priv(netdev);
2619 struct i40e_pf *pf = np->vsi->back;
2620
2621 netif_info(pf, hw, netdev, "eeprom test\n");
2622 *data = i40e_diag_eeprom_test(&pf->hw);
2623
2624 /* forcebly clear the NVM Update state machine */
2625 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2626
2627 return *data;
2628 }
2629
i40e_intr_test(struct net_device * netdev,u64 * data)2630 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2631 {
2632 struct i40e_netdev_priv *np = netdev_priv(netdev);
2633 struct i40e_pf *pf = np->vsi->back;
2634 u16 swc_old = pf->sw_int_count;
2635
2636 netif_info(pf, hw, netdev, "interrupt test\n");
2637 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2638 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2639 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2640 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2641 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2642 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2643 usleep_range(1000, 2000);
2644 *data = (swc_old == pf->sw_int_count);
2645
2646 return *data;
2647 }
2648
i40e_active_vfs(struct i40e_pf * pf)2649 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2650 {
2651 struct i40e_vf *vfs = pf->vf;
2652 int i;
2653
2654 for (i = 0; i < pf->num_alloc_vfs; i++)
2655 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2656 return true;
2657 return false;
2658 }
2659
i40e_active_vmdqs(struct i40e_pf * pf)2660 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2661 {
2662 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2663 }
2664
i40e_diag_test(struct net_device * netdev,struct ethtool_test * eth_test,u64 * data)2665 static void i40e_diag_test(struct net_device *netdev,
2666 struct ethtool_test *eth_test, u64 *data)
2667 {
2668 struct i40e_netdev_priv *np = netdev_priv(netdev);
2669 bool if_running = netif_running(netdev);
2670 struct i40e_pf *pf = np->vsi->back;
2671
2672 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2673 /* Offline tests */
2674 netif_info(pf, drv, netdev, "offline testing starting\n");
2675
2676 set_bit(__I40E_TESTING, pf->state);
2677
2678 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
2679 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) {
2680 dev_warn(&pf->pdev->dev,
2681 "Cannot start offline testing when PF is in reset state.\n");
2682 goto skip_ol_tests;
2683 }
2684
2685 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2686 dev_warn(&pf->pdev->dev,
2687 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2688 goto skip_ol_tests;
2689 }
2690
2691 /* If the device is online then take it offline */
2692 if (if_running)
2693 /* indicate we're in test mode */
2694 i40e_close(netdev);
2695 else
2696 /* This reset does not affect link - if it is
2697 * changed to a type of reset that does affect
2698 * link then the following link test would have
2699 * to be moved to before the reset
2700 */
2701 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2702
2703 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2704 eth_test->flags |= ETH_TEST_FL_FAILED;
2705
2706 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2707 eth_test->flags |= ETH_TEST_FL_FAILED;
2708
2709 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2710 eth_test->flags |= ETH_TEST_FL_FAILED;
2711
2712 /* run reg test last, a reset is required after it */
2713 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2714 eth_test->flags |= ETH_TEST_FL_FAILED;
2715
2716 clear_bit(__I40E_TESTING, pf->state);
2717 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2718
2719 if (if_running)
2720 i40e_open(netdev);
2721 } else {
2722 /* Online tests */
2723 netif_info(pf, drv, netdev, "online testing starting\n");
2724
2725 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2726 eth_test->flags |= ETH_TEST_FL_FAILED;
2727
2728 /* Offline only tests, not run in online; pass by default */
2729 data[I40E_ETH_TEST_REG] = 0;
2730 data[I40E_ETH_TEST_EEPROM] = 0;
2731 data[I40E_ETH_TEST_INTR] = 0;
2732 }
2733
2734 netif_info(pf, drv, netdev, "testing finished\n");
2735 return;
2736
2737 skip_ol_tests:
2738 data[I40E_ETH_TEST_REG] = 1;
2739 data[I40E_ETH_TEST_EEPROM] = 1;
2740 data[I40E_ETH_TEST_INTR] = 1;
2741 data[I40E_ETH_TEST_LINK] = 1;
2742 eth_test->flags |= ETH_TEST_FL_FAILED;
2743 clear_bit(__I40E_TESTING, pf->state);
2744 netif_info(pf, drv, netdev, "testing failed\n");
2745 }
2746
i40e_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)2747 static void i40e_get_wol(struct net_device *netdev,
2748 struct ethtool_wolinfo *wol)
2749 {
2750 struct i40e_netdev_priv *np = netdev_priv(netdev);
2751 struct i40e_pf *pf = np->vsi->back;
2752 struct i40e_hw *hw = &pf->hw;
2753 u16 wol_nvm_bits;
2754
2755 /* NVM bit on means WoL disabled for the port */
2756 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2757 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2758 wol->supported = 0;
2759 wol->wolopts = 0;
2760 } else {
2761 wol->supported = WAKE_MAGIC;
2762 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2763 }
2764 }
2765
2766 /**
2767 * i40e_set_wol - set the WakeOnLAN configuration
2768 * @netdev: the netdev in question
2769 * @wol: the ethtool WoL setting data
2770 **/
i40e_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)2771 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2772 {
2773 struct i40e_netdev_priv *np = netdev_priv(netdev);
2774 struct i40e_pf *pf = np->vsi->back;
2775 struct i40e_vsi *vsi = np->vsi;
2776 struct i40e_hw *hw = &pf->hw;
2777 u16 wol_nvm_bits;
2778
2779 /* WoL not supported if this isn't the controlling PF on the port */
2780 if (hw->partition_id != 1) {
2781 i40e_partition_setting_complaint(pf);
2782 return -EOPNOTSUPP;
2783 }
2784
2785 if (vsi != pf->vsi[pf->lan_vsi])
2786 return -EOPNOTSUPP;
2787
2788 /* NVM bit on means WoL disabled for the port */
2789 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2790 if (BIT(hw->port) & wol_nvm_bits)
2791 return -EOPNOTSUPP;
2792
2793 /* only magic packet is supported */
2794 if (wol->wolopts & ~WAKE_MAGIC)
2795 return -EOPNOTSUPP;
2796
2797 /* is this a new value? */
2798 if (pf->wol_en != !!wol->wolopts) {
2799 pf->wol_en = !!wol->wolopts;
2800 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2801 }
2802
2803 return 0;
2804 }
2805
i40e_set_phys_id(struct net_device * netdev,enum ethtool_phys_id_state state)2806 static int i40e_set_phys_id(struct net_device *netdev,
2807 enum ethtool_phys_id_state state)
2808 {
2809 struct i40e_netdev_priv *np = netdev_priv(netdev);
2810 struct i40e_pf *pf = np->vsi->back;
2811 struct i40e_hw *hw = &pf->hw;
2812 int blink_freq = 2;
2813 u16 temp_status;
2814 int ret = 0;
2815
2816 switch (state) {
2817 case ETHTOOL_ID_ACTIVE:
2818 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2819 pf->led_status = i40e_led_get(hw);
2820 } else {
2821 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2822 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2823 NULL);
2824 ret = i40e_led_get_phy(hw, &temp_status,
2825 &pf->phy_led_val);
2826 pf->led_status = temp_status;
2827 }
2828 return blink_freq;
2829 case ETHTOOL_ID_ON:
2830 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2831 i40e_led_set(hw, 0xf, false);
2832 else
2833 ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2834 break;
2835 case ETHTOOL_ID_OFF:
2836 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2837 i40e_led_set(hw, 0x0, false);
2838 else
2839 ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2840 break;
2841 case ETHTOOL_ID_INACTIVE:
2842 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2843 i40e_led_set(hw, pf->led_status, false);
2844 } else {
2845 ret = i40e_led_set_phy(hw, false, pf->led_status,
2846 (pf->phy_led_val |
2847 I40E_PHY_LED_MODE_ORIG));
2848 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2849 i40e_aq_set_phy_debug(hw, 0, NULL);
2850 }
2851 break;
2852 default:
2853 break;
2854 }
2855 if (ret)
2856 return -ENOENT;
2857 else
2858 return 0;
2859 }
2860
2861 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2862 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2863 * 125us (8000 interrupts per second) == ITR(62)
2864 */
2865
2866 /**
2867 * __i40e_get_coalesce - get per-queue coalesce settings
2868 * @netdev: the netdev to check
2869 * @ec: ethtool coalesce data structure
2870 * @queue: which queue to pick
2871 *
2872 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2873 * are per queue. If queue is <0 then we default to queue 0 as the
2874 * representative value.
2875 **/
__i40e_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,int queue)2876 static int __i40e_get_coalesce(struct net_device *netdev,
2877 struct ethtool_coalesce *ec,
2878 int queue)
2879 {
2880 struct i40e_netdev_priv *np = netdev_priv(netdev);
2881 struct i40e_ring *rx_ring, *tx_ring;
2882 struct i40e_vsi *vsi = np->vsi;
2883
2884 ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2885 ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2886
2887 /* rx and tx usecs has per queue value. If user doesn't specify the
2888 * queue, return queue 0's value to represent.
2889 */
2890 if (queue < 0)
2891 queue = 0;
2892 else if (queue >= vsi->num_queue_pairs)
2893 return -EINVAL;
2894
2895 rx_ring = vsi->rx_rings[queue];
2896 tx_ring = vsi->tx_rings[queue];
2897
2898 if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2899 ec->use_adaptive_rx_coalesce = 1;
2900
2901 if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2902 ec->use_adaptive_tx_coalesce = 1;
2903
2904 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2905 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2906
2907 /* we use the _usecs_high to store/set the interrupt rate limit
2908 * that the hardware supports, that almost but not quite
2909 * fits the original intent of the ethtool variable,
2910 * the rx_coalesce_usecs_high limits total interrupts
2911 * per second from both tx/rx sources.
2912 */
2913 ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2914 ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2915
2916 return 0;
2917 }
2918
2919 /**
2920 * i40e_get_coalesce - get a netdev's coalesce settings
2921 * @netdev: the netdev to check
2922 * @ec: ethtool coalesce data structure
2923 * @kernel_coal: ethtool CQE mode setting structure
2924 * @extack: extack for reporting error messages
2925 *
2926 * Gets the coalesce settings for a particular netdev. Note that if user has
2927 * modified per-queue settings, this only guarantees to represent queue 0. See
2928 * __i40e_get_coalesce for more details.
2929 **/
i40e_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)2930 static int i40e_get_coalesce(struct net_device *netdev,
2931 struct ethtool_coalesce *ec,
2932 struct kernel_ethtool_coalesce *kernel_coal,
2933 struct netlink_ext_ack *extack)
2934 {
2935 return __i40e_get_coalesce(netdev, ec, -1);
2936 }
2937
2938 /**
2939 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2940 * @netdev: netdev structure
2941 * @ec: ethtool's coalesce settings
2942 * @queue: the particular queue to read
2943 *
2944 * Will read a specific queue's coalesce settings
2945 **/
i40e_get_per_queue_coalesce(struct net_device * netdev,u32 queue,struct ethtool_coalesce * ec)2946 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2947 struct ethtool_coalesce *ec)
2948 {
2949 return __i40e_get_coalesce(netdev, ec, queue);
2950 }
2951
2952 /**
2953 * i40e_set_itr_per_queue - set ITR values for specific queue
2954 * @vsi: the VSI to set values for
2955 * @ec: coalesce settings from ethtool
2956 * @queue: the queue to modify
2957 *
2958 * Change the ITR settings for a specific queue.
2959 **/
i40e_set_itr_per_queue(struct i40e_vsi * vsi,struct ethtool_coalesce * ec,int queue)2960 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2961 struct ethtool_coalesce *ec,
2962 int queue)
2963 {
2964 struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2965 struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2966 struct i40e_pf *pf = vsi->back;
2967 struct i40e_hw *hw = &pf->hw;
2968 struct i40e_q_vector *q_vector;
2969 u16 intrl;
2970
2971 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2972
2973 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2974 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2975
2976 if (ec->use_adaptive_rx_coalesce)
2977 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2978 else
2979 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2980
2981 if (ec->use_adaptive_tx_coalesce)
2982 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2983 else
2984 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2985
2986 q_vector = rx_ring->q_vector;
2987 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2988
2989 q_vector = tx_ring->q_vector;
2990 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2991
2992 /* The interrupt handler itself will take care of programming
2993 * the Tx and Rx ITR values based on the values we have entered
2994 * into the q_vector, no need to write the values now.
2995 */
2996
2997 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2998 i40e_flush(hw);
2999 }
3000
3001 /**
3002 * __i40e_set_coalesce - set coalesce settings for particular queue
3003 * @netdev: the netdev to change
3004 * @ec: ethtool coalesce settings
3005 * @queue: the queue to change
3006 *
3007 * Sets the coalesce settings for a particular queue.
3008 **/
__i40e_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,int queue)3009 static int __i40e_set_coalesce(struct net_device *netdev,
3010 struct ethtool_coalesce *ec,
3011 int queue)
3012 {
3013 struct i40e_netdev_priv *np = netdev_priv(netdev);
3014 u16 intrl_reg, cur_rx_itr, cur_tx_itr;
3015 struct i40e_vsi *vsi = np->vsi;
3016 struct i40e_pf *pf = vsi->back;
3017 int i;
3018
3019 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
3020 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
3021
3022 if (queue < 0) {
3023 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
3024 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
3025 } else if (queue < vsi->num_queue_pairs) {
3026 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
3027 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
3028 } else {
3029 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
3030 vsi->num_queue_pairs - 1);
3031 return -EINVAL;
3032 }
3033
3034 cur_tx_itr &= ~I40E_ITR_DYNAMIC;
3035 cur_rx_itr &= ~I40E_ITR_DYNAMIC;
3036
3037 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
3038 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
3039 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
3040 return -EINVAL;
3041 }
3042
3043 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
3044 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
3045 INTRL_REG_TO_USEC(I40E_MAX_INTRL));
3046 return -EINVAL;
3047 }
3048
3049 if (ec->rx_coalesce_usecs != cur_rx_itr &&
3050 ec->use_adaptive_rx_coalesce) {
3051 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
3052 return -EINVAL;
3053 }
3054
3055 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
3056 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
3057 return -EINVAL;
3058 }
3059
3060 if (ec->tx_coalesce_usecs != cur_tx_itr &&
3061 ec->use_adaptive_tx_coalesce) {
3062 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
3063 return -EINVAL;
3064 }
3065
3066 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
3067 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
3068 return -EINVAL;
3069 }
3070
3071 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
3072 ec->rx_coalesce_usecs = I40E_MIN_ITR;
3073
3074 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
3075 ec->tx_coalesce_usecs = I40E_MIN_ITR;
3076
3077 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
3078 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
3079 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
3080 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
3081 vsi->int_rate_limit);
3082 }
3083
3084 /* rx and tx usecs has per queue value. If user doesn't specify the
3085 * queue, apply to all queues.
3086 */
3087 if (queue < 0) {
3088 for (i = 0; i < vsi->num_queue_pairs; i++)
3089 i40e_set_itr_per_queue(vsi, ec, i);
3090 } else {
3091 i40e_set_itr_per_queue(vsi, ec, queue);
3092 }
3093
3094 return 0;
3095 }
3096
3097 /**
3098 * i40e_set_coalesce - set coalesce settings for every queue on the netdev
3099 * @netdev: the netdev to change
3100 * @ec: ethtool coalesce settings
3101 * @kernel_coal: ethtool CQE mode setting structure
3102 * @extack: extack for reporting error messages
3103 *
3104 * This will set each queue to the same coalesce settings.
3105 **/
i40e_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)3106 static int i40e_set_coalesce(struct net_device *netdev,
3107 struct ethtool_coalesce *ec,
3108 struct kernel_ethtool_coalesce *kernel_coal,
3109 struct netlink_ext_ack *extack)
3110 {
3111 return __i40e_set_coalesce(netdev, ec, -1);
3112 }
3113
3114 /**
3115 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
3116 * @netdev: the netdev to change
3117 * @ec: ethtool's coalesce settings
3118 * @queue: the queue to change
3119 *
3120 * Sets the specified queue's coalesce settings.
3121 **/
i40e_set_per_queue_coalesce(struct net_device * netdev,u32 queue,struct ethtool_coalesce * ec)3122 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
3123 struct ethtool_coalesce *ec)
3124 {
3125 return __i40e_set_coalesce(netdev, ec, queue);
3126 }
3127
3128 /**
3129 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
3130 * @pf: pointer to the physical function struct
3131 * @cmd: ethtool rxnfc command
3132 *
3133 * Returns Success if the flow is supported, else Invalid Input.
3134 **/
i40e_get_rss_hash_opts(struct i40e_pf * pf,struct ethtool_rxnfc * cmd)3135 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
3136 {
3137 struct i40e_hw *hw = &pf->hw;
3138 u8 flow_pctype = 0;
3139 u64 i_set = 0;
3140
3141 cmd->data = 0;
3142
3143 switch (cmd->flow_type) {
3144 case TCP_V4_FLOW:
3145 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3146 break;
3147 case UDP_V4_FLOW:
3148 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3149 break;
3150 case TCP_V6_FLOW:
3151 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3152 break;
3153 case UDP_V6_FLOW:
3154 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3155 break;
3156 case SCTP_V4_FLOW:
3157 case AH_ESP_V4_FLOW:
3158 case AH_V4_FLOW:
3159 case ESP_V4_FLOW:
3160 case IPV4_FLOW:
3161 case SCTP_V6_FLOW:
3162 case AH_ESP_V6_FLOW:
3163 case AH_V6_FLOW:
3164 case ESP_V6_FLOW:
3165 case IPV6_FLOW:
3166 /* Default is src/dest for IP, no matter the L4 hashing */
3167 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3168 break;
3169 default:
3170 return -EINVAL;
3171 }
3172
3173 /* Read flow based hash input set register */
3174 if (flow_pctype) {
3175 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3176 flow_pctype)) |
3177 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3178 flow_pctype)) << 32);
3179 }
3180
3181 /* Process bits of hash input set */
3182 if (i_set) {
3183 if (i_set & I40E_L4_SRC_MASK)
3184 cmd->data |= RXH_L4_B_0_1;
3185 if (i_set & I40E_L4_DST_MASK)
3186 cmd->data |= RXH_L4_B_2_3;
3187
3188 if (cmd->flow_type == TCP_V4_FLOW ||
3189 cmd->flow_type == UDP_V4_FLOW) {
3190 if (hw->mac.type == I40E_MAC_X722) {
3191 if (i_set & I40E_X722_L3_SRC_MASK)
3192 cmd->data |= RXH_IP_SRC;
3193 if (i_set & I40E_X722_L3_DST_MASK)
3194 cmd->data |= RXH_IP_DST;
3195 } else {
3196 if (i_set & I40E_L3_SRC_MASK)
3197 cmd->data |= RXH_IP_SRC;
3198 if (i_set & I40E_L3_DST_MASK)
3199 cmd->data |= RXH_IP_DST;
3200 }
3201 } else if (cmd->flow_type == TCP_V6_FLOW ||
3202 cmd->flow_type == UDP_V6_FLOW) {
3203 if (i_set & I40E_L3_V6_SRC_MASK)
3204 cmd->data |= RXH_IP_SRC;
3205 if (i_set & I40E_L3_V6_DST_MASK)
3206 cmd->data |= RXH_IP_DST;
3207 }
3208 }
3209
3210 return 0;
3211 }
3212
3213 /**
3214 * i40e_check_mask - Check whether a mask field is set
3215 * @mask: the full mask value
3216 * @field: mask of the field to check
3217 *
3218 * If the given mask is fully set, return positive value. If the mask for the
3219 * field is fully unset, return zero. Otherwise return a negative error code.
3220 **/
i40e_check_mask(u64 mask,u64 field)3221 static int i40e_check_mask(u64 mask, u64 field)
3222 {
3223 u64 value = mask & field;
3224
3225 if (value == field)
3226 return 1;
3227 else if (!value)
3228 return 0;
3229 else
3230 return -1;
3231 }
3232
3233 /**
3234 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3235 * @fsp: pointer to rx flow specification
3236 * @data: pointer to userdef data structure for storage
3237 *
3238 * Read the user-defined data and deconstruct the value into a structure. No
3239 * other code should read the user-defined data, so as to ensure that every
3240 * place consistently reads the value correctly.
3241 *
3242 * The user-defined field is a 64bit Big Endian format value, which we
3243 * deconstruct by reading bits or bit fields from it. Single bit flags shall
3244 * be defined starting from the highest bits, while small bit field values
3245 * shall be defined starting from the lowest bits.
3246 *
3247 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3248 * and the filter should be rejected. The data structure will always be
3249 * modified even if FLOW_EXT is not set.
3250 *
3251 **/
i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec * fsp,struct i40e_rx_flow_userdef * data)3252 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3253 struct i40e_rx_flow_userdef *data)
3254 {
3255 u64 value, mask;
3256 int valid;
3257
3258 /* Zero memory first so it's always consistent. */
3259 memset(data, 0, sizeof(*data));
3260
3261 if (!(fsp->flow_type & FLOW_EXT))
3262 return 0;
3263
3264 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3265 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3266
3267 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0)
3268 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16)
3269 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0)
3270
3271 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3272 if (valid < 0) {
3273 return -EINVAL;
3274 } else if (valid) {
3275 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3276 data->flex_offset =
3277 (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3278 data->flex_filter = true;
3279 }
3280
3281 return 0;
3282 }
3283
3284 /**
3285 * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3286 * @fsp: pointer to rx_flow specification
3287 * @data: pointer to return userdef data
3288 *
3289 * Reads the userdef data structure and properly fills in the user defined
3290 * fields of the rx_flow_spec.
3291 **/
i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec * fsp,struct i40e_rx_flow_userdef * data)3292 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3293 struct i40e_rx_flow_userdef *data)
3294 {
3295 u64 value = 0, mask = 0;
3296
3297 if (data->flex_filter) {
3298 value |= data->flex_word;
3299 value |= (u64)data->flex_offset << 16;
3300 mask |= I40E_USERDEF_FLEX_FILTER;
3301 }
3302
3303 if (value || mask)
3304 fsp->flow_type |= FLOW_EXT;
3305
3306 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3307 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3308 }
3309
3310 /**
3311 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3312 * @pf: Pointer to the physical function struct
3313 * @cmd: The command to get or set Rx flow classification rules
3314 * @rule_locs: Array of used rule locations
3315 *
3316 * This function populates both the total and actual rule count of
3317 * the ethtool flow classification command
3318 *
3319 * Returns 0 on success or -EMSGSIZE if entry not found
3320 **/
i40e_get_ethtool_fdir_all(struct i40e_pf * pf,struct ethtool_rxnfc * cmd,u32 * rule_locs)3321 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3322 struct ethtool_rxnfc *cmd,
3323 u32 *rule_locs)
3324 {
3325 struct i40e_fdir_filter *rule;
3326 struct hlist_node *node2;
3327 int cnt = 0;
3328
3329 /* report total rule count */
3330 cmd->data = i40e_get_fd_cnt_all(pf);
3331
3332 hlist_for_each_entry_safe(rule, node2,
3333 &pf->fdir_filter_list, fdir_node) {
3334 if (cnt == cmd->rule_cnt)
3335 return -EMSGSIZE;
3336
3337 rule_locs[cnt] = rule->fd_id;
3338 cnt++;
3339 }
3340
3341 cmd->rule_cnt = cnt;
3342
3343 return 0;
3344 }
3345
3346 /**
3347 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3348 * @pf: Pointer to the physical function struct
3349 * @cmd: The command to get or set Rx flow classification rules
3350 *
3351 * This function looks up a filter based on the Rx flow classification
3352 * command and fills the flow spec info for it if found
3353 *
3354 * Returns 0 on success or -EINVAL if filter not found
3355 **/
i40e_get_ethtool_fdir_entry(struct i40e_pf * pf,struct ethtool_rxnfc * cmd)3356 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3357 struct ethtool_rxnfc *cmd)
3358 {
3359 struct ethtool_rx_flow_spec *fsp =
3360 (struct ethtool_rx_flow_spec *)&cmd->fs;
3361 struct i40e_rx_flow_userdef userdef = {0};
3362 struct i40e_fdir_filter *rule = NULL;
3363 struct hlist_node *node2;
3364 u64 input_set;
3365 u16 index;
3366
3367 hlist_for_each_entry_safe(rule, node2,
3368 &pf->fdir_filter_list, fdir_node) {
3369 if (fsp->location <= rule->fd_id)
3370 break;
3371 }
3372
3373 if (!rule || fsp->location != rule->fd_id)
3374 return -EINVAL;
3375
3376 fsp->flow_type = rule->flow_type;
3377 if (fsp->flow_type == IP_USER_FLOW) {
3378 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3379 fsp->h_u.usr_ip4_spec.proto = 0;
3380 fsp->m_u.usr_ip4_spec.proto = 0;
3381 }
3382
3383 if (fsp->flow_type == IPV6_USER_FLOW ||
3384 fsp->flow_type == UDP_V6_FLOW ||
3385 fsp->flow_type == TCP_V6_FLOW ||
3386 fsp->flow_type == SCTP_V6_FLOW) {
3387 /* Reverse the src and dest notion, since the HW views them
3388 * from Tx perspective where as the user expects it from
3389 * Rx filter view.
3390 */
3391 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3392 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3393 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3394 sizeof(__be32) * 4);
3395 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3396 sizeof(__be32) * 4);
3397 } else {
3398 /* Reverse the src and dest notion, since the HW views them
3399 * from Tx perspective where as the user expects it from
3400 * Rx filter view.
3401 */
3402 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3403 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3404 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3405 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3406 }
3407
3408 switch (rule->flow_type) {
3409 case SCTP_V4_FLOW:
3410 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3411 break;
3412 case TCP_V4_FLOW:
3413 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3414 break;
3415 case UDP_V4_FLOW:
3416 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3417 break;
3418 case SCTP_V6_FLOW:
3419 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3420 break;
3421 case TCP_V6_FLOW:
3422 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3423 break;
3424 case UDP_V6_FLOW:
3425 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3426 break;
3427 case IP_USER_FLOW:
3428 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3429 break;
3430 case IPV6_USER_FLOW:
3431 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3432 break;
3433 default:
3434 /* If we have stored a filter with a flow type not listed here
3435 * it is almost certainly a driver bug. WARN(), and then
3436 * assign the input_set as if all fields are enabled to avoid
3437 * reading unassigned memory.
3438 */
3439 WARN(1, "Missing input set index for flow_type %d\n",
3440 rule->flow_type);
3441 input_set = 0xFFFFFFFFFFFFFFFFULL;
3442 goto no_input_set;
3443 }
3444
3445 input_set = i40e_read_fd_input_set(pf, index);
3446
3447 no_input_set:
3448 if (input_set & I40E_L3_V6_SRC_MASK) {
3449 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3450 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3451 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3452 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3453 }
3454
3455 if (input_set & I40E_L3_V6_DST_MASK) {
3456 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3457 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3458 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3459 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3460 }
3461
3462 if (input_set & I40E_L3_SRC_MASK)
3463 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3464
3465 if (input_set & I40E_L3_DST_MASK)
3466 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3467
3468 if (input_set & I40E_L4_SRC_MASK)
3469 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3470
3471 if (input_set & I40E_L4_DST_MASK)
3472 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3473
3474 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3475 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3476 else
3477 fsp->ring_cookie = rule->q_index;
3478
3479 if (rule->vlan_tag) {
3480 fsp->h_ext.vlan_etype = rule->vlan_etype;
3481 fsp->m_ext.vlan_etype = htons(0xFFFF);
3482 fsp->h_ext.vlan_tci = rule->vlan_tag;
3483 fsp->m_ext.vlan_tci = htons(0xFFFF);
3484 fsp->flow_type |= FLOW_EXT;
3485 }
3486
3487 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3488 struct i40e_vsi *vsi;
3489
3490 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3491 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3492 /* VFs are zero-indexed by the driver, but ethtool
3493 * expects them to be one-indexed, so add one here
3494 */
3495 u64 ring_vf = vsi->vf_id + 1;
3496
3497 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3498 fsp->ring_cookie |= ring_vf;
3499 }
3500 }
3501
3502 if (rule->flex_filter) {
3503 userdef.flex_filter = true;
3504 userdef.flex_word = be16_to_cpu(rule->flex_word);
3505 userdef.flex_offset = rule->flex_offset;
3506 }
3507
3508 i40e_fill_rx_flow_user_data(fsp, &userdef);
3509
3510 return 0;
3511 }
3512
3513 /**
3514 * i40e_get_rxnfc - command to get RX flow classification rules
3515 * @netdev: network interface device structure
3516 * @cmd: ethtool rxnfc command
3517 * @rule_locs: pointer to store rule data
3518 *
3519 * Returns Success if the command is supported.
3520 **/
i40e_get_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * cmd,u32 * rule_locs)3521 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3522 u32 *rule_locs)
3523 {
3524 struct i40e_netdev_priv *np = netdev_priv(netdev);
3525 struct i40e_vsi *vsi = np->vsi;
3526 struct i40e_pf *pf = vsi->back;
3527 int ret = -EOPNOTSUPP;
3528
3529 switch (cmd->cmd) {
3530 case ETHTOOL_GRXRINGS:
3531 cmd->data = vsi->rss_size;
3532 ret = 0;
3533 break;
3534 case ETHTOOL_GRXFH:
3535 ret = i40e_get_rss_hash_opts(pf, cmd);
3536 break;
3537 case ETHTOOL_GRXCLSRLCNT:
3538 cmd->rule_cnt = pf->fdir_pf_active_filters;
3539 /* report total rule count */
3540 cmd->data = i40e_get_fd_cnt_all(pf);
3541 ret = 0;
3542 break;
3543 case ETHTOOL_GRXCLSRULE:
3544 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3545 break;
3546 case ETHTOOL_GRXCLSRLALL:
3547 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3548 break;
3549 default:
3550 break;
3551 }
3552
3553 return ret;
3554 }
3555
3556 /**
3557 * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3558 * @hw: hw structure
3559 * @nfc: pointer to user request
3560 * @i_setc: bits currently set
3561 *
3562 * Returns value of bits to be set per user request
3563 **/
i40e_get_rss_hash_bits(struct i40e_hw * hw,struct ethtool_rxnfc * nfc,u64 i_setc)3564 static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw,
3565 struct ethtool_rxnfc *nfc,
3566 u64 i_setc)
3567 {
3568 u64 i_set = i_setc;
3569 u64 src_l3 = 0, dst_l3 = 0;
3570
3571 if (nfc->data & RXH_L4_B_0_1)
3572 i_set |= I40E_L4_SRC_MASK;
3573 else
3574 i_set &= ~I40E_L4_SRC_MASK;
3575 if (nfc->data & RXH_L4_B_2_3)
3576 i_set |= I40E_L4_DST_MASK;
3577 else
3578 i_set &= ~I40E_L4_DST_MASK;
3579
3580 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3581 src_l3 = I40E_L3_V6_SRC_MASK;
3582 dst_l3 = I40E_L3_V6_DST_MASK;
3583 } else if (nfc->flow_type == TCP_V4_FLOW ||
3584 nfc->flow_type == UDP_V4_FLOW) {
3585 if (hw->mac.type == I40E_MAC_X722) {
3586 src_l3 = I40E_X722_L3_SRC_MASK;
3587 dst_l3 = I40E_X722_L3_DST_MASK;
3588 } else {
3589 src_l3 = I40E_L3_SRC_MASK;
3590 dst_l3 = I40E_L3_DST_MASK;
3591 }
3592 } else {
3593 /* Any other flow type are not supported here */
3594 return i_set;
3595 }
3596
3597 if (nfc->data & RXH_IP_SRC)
3598 i_set |= src_l3;
3599 else
3600 i_set &= ~src_l3;
3601 if (nfc->data & RXH_IP_DST)
3602 i_set |= dst_l3;
3603 else
3604 i_set &= ~dst_l3;
3605
3606 return i_set;
3607 }
3608
3609 #define FLOW_PCTYPES_SIZE 64
3610 /**
3611 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3612 * @pf: pointer to the physical function struct
3613 * @nfc: ethtool rxnfc command
3614 *
3615 * Returns Success if the flow input set is supported.
3616 **/
i40e_set_rss_hash_opt(struct i40e_pf * pf,struct ethtool_rxnfc * nfc)3617 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3618 {
3619 struct i40e_hw *hw = &pf->hw;
3620 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3621 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3622 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE);
3623 u64 i_set, i_setc;
3624
3625 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE);
3626
3627 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3628 dev_err(&pf->pdev->dev,
3629 "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3630 return -EOPNOTSUPP;
3631 }
3632
3633 /* RSS does not support anything other than hashing
3634 * to queues on src and dst IPs and ports
3635 */
3636 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3637 RXH_L4_B_0_1 | RXH_L4_B_2_3))
3638 return -EINVAL;
3639
3640 switch (nfc->flow_type) {
3641 case TCP_V4_FLOW:
3642 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes);
3643 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3644 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK,
3645 flow_pctypes);
3646 break;
3647 case TCP_V6_FLOW:
3648 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes);
3649 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3650 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK,
3651 flow_pctypes);
3652 break;
3653 case UDP_V4_FLOW:
3654 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes);
3655 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
3656 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP,
3657 flow_pctypes);
3658 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP,
3659 flow_pctypes);
3660 }
3661 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3662 break;
3663 case UDP_V6_FLOW:
3664 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes);
3665 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
3666 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP,
3667 flow_pctypes);
3668 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP,
3669 flow_pctypes);
3670 }
3671 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3672 break;
3673 case AH_ESP_V4_FLOW:
3674 case AH_V4_FLOW:
3675 case ESP_V4_FLOW:
3676 case SCTP_V4_FLOW:
3677 if ((nfc->data & RXH_L4_B_0_1) ||
3678 (nfc->data & RXH_L4_B_2_3))
3679 return -EINVAL;
3680 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3681 break;
3682 case AH_ESP_V6_FLOW:
3683 case AH_V6_FLOW:
3684 case ESP_V6_FLOW:
3685 case SCTP_V6_FLOW:
3686 if ((nfc->data & RXH_L4_B_0_1) ||
3687 (nfc->data & RXH_L4_B_2_3))
3688 return -EINVAL;
3689 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3690 break;
3691 case IPV4_FLOW:
3692 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3693 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3694 break;
3695 case IPV6_FLOW:
3696 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3697 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3698 break;
3699 default:
3700 return -EINVAL;
3701 }
3702
3703 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) {
3704 u8 flow_id;
3705
3706 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) {
3707 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) |
3708 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32);
3709 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc);
3710
3711 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id),
3712 (u32)i_set);
3713 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id),
3714 (u32)(i_set >> 32));
3715 hena |= BIT_ULL(flow_id);
3716 }
3717 }
3718
3719 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3720 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3721 i40e_flush(hw);
3722
3723 return 0;
3724 }
3725
3726 /**
3727 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3728 * @vsi: Pointer to the targeted VSI
3729 * @input: The filter to update or NULL to indicate deletion
3730 * @sw_idx: Software index to the filter
3731 * @cmd: The command to get or set Rx flow classification rules
3732 *
3733 * This function updates (or deletes) a Flow Director entry from
3734 * the hlist of the corresponding PF
3735 *
3736 * Returns 0 on success
3737 **/
i40e_update_ethtool_fdir_entry(struct i40e_vsi * vsi,struct i40e_fdir_filter * input,u16 sw_idx,struct ethtool_rxnfc * cmd)3738 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3739 struct i40e_fdir_filter *input,
3740 u16 sw_idx,
3741 struct ethtool_rxnfc *cmd)
3742 {
3743 struct i40e_fdir_filter *rule, *parent;
3744 struct i40e_pf *pf = vsi->back;
3745 struct hlist_node *node2;
3746 int err = -EINVAL;
3747
3748 parent = NULL;
3749 rule = NULL;
3750
3751 hlist_for_each_entry_safe(rule, node2,
3752 &pf->fdir_filter_list, fdir_node) {
3753 /* hash found, or no matching entry */
3754 if (rule->fd_id >= sw_idx)
3755 break;
3756 parent = rule;
3757 }
3758
3759 /* if there is an old rule occupying our place remove it */
3760 if (rule && (rule->fd_id == sw_idx)) {
3761 /* Remove this rule, since we're either deleting it, or
3762 * replacing it.
3763 */
3764 err = i40e_add_del_fdir(vsi, rule, false);
3765 hlist_del(&rule->fdir_node);
3766 kfree(rule);
3767 pf->fdir_pf_active_filters--;
3768 }
3769
3770 /* If we weren't given an input, this is a delete, so just return the
3771 * error code indicating if there was an entry at the requested slot
3772 */
3773 if (!input)
3774 return err;
3775
3776 /* Otherwise, install the new rule as requested */
3777 INIT_HLIST_NODE(&input->fdir_node);
3778
3779 /* add filter to the list */
3780 if (parent)
3781 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3782 else
3783 hlist_add_head(&input->fdir_node,
3784 &pf->fdir_filter_list);
3785
3786 /* update counts */
3787 pf->fdir_pf_active_filters++;
3788
3789 return 0;
3790 }
3791
3792 /**
3793 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3794 * @pf: pointer to PF structure
3795 *
3796 * This function searches the list of filters and determines which FLX_PIT
3797 * entries are still required. It will prune any entries which are no longer
3798 * in use after the deletion.
3799 **/
i40e_prune_flex_pit_list(struct i40e_pf * pf)3800 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3801 {
3802 struct i40e_flex_pit *entry, *tmp;
3803 struct i40e_fdir_filter *rule;
3804
3805 /* First, we'll check the l3 table */
3806 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3807 bool found = false;
3808
3809 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3810 if (rule->flow_type != IP_USER_FLOW)
3811 continue;
3812 if (rule->flex_filter &&
3813 rule->flex_offset == entry->src_offset) {
3814 found = true;
3815 break;
3816 }
3817 }
3818
3819 /* If we didn't find the filter, then we can prune this entry
3820 * from the list.
3821 */
3822 if (!found) {
3823 list_del(&entry->list);
3824 kfree(entry);
3825 }
3826 }
3827
3828 /* Followed by the L4 table */
3829 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3830 bool found = false;
3831
3832 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3833 /* Skip this filter if it's L3, since we already
3834 * checked those in the above loop
3835 */
3836 if (rule->flow_type == IP_USER_FLOW)
3837 continue;
3838 if (rule->flex_filter &&
3839 rule->flex_offset == entry->src_offset) {
3840 found = true;
3841 break;
3842 }
3843 }
3844
3845 /* If we didn't find the filter, then we can prune this entry
3846 * from the list.
3847 */
3848 if (!found) {
3849 list_del(&entry->list);
3850 kfree(entry);
3851 }
3852 }
3853 }
3854
3855 /**
3856 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3857 * @vsi: Pointer to the targeted VSI
3858 * @cmd: The command to get or set Rx flow classification rules
3859 *
3860 * The function removes a Flow Director filter entry from the
3861 * hlist of the corresponding PF
3862 *
3863 * Returns 0 on success
3864 */
i40e_del_fdir_entry(struct i40e_vsi * vsi,struct ethtool_rxnfc * cmd)3865 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3866 struct ethtool_rxnfc *cmd)
3867 {
3868 struct ethtool_rx_flow_spec *fsp =
3869 (struct ethtool_rx_flow_spec *)&cmd->fs;
3870 struct i40e_pf *pf = vsi->back;
3871 int ret = 0;
3872
3873 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3874 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3875 return -EBUSY;
3876
3877 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3878 return -EBUSY;
3879
3880 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3881
3882 i40e_prune_flex_pit_list(pf);
3883
3884 i40e_fdir_check_and_reenable(pf);
3885 return ret;
3886 }
3887
3888 /**
3889 * i40e_unused_pit_index - Find an unused PIT index for given list
3890 * @pf: the PF data structure
3891 *
3892 * Find the first unused flexible PIT index entry. We search both the L3 and
3893 * L4 flexible PIT lists so that the returned index is unique and unused by
3894 * either currently programmed L3 or L4 filters. We use a bit field as storage
3895 * to track which indexes are already used.
3896 **/
i40e_unused_pit_index(struct i40e_pf * pf)3897 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3898 {
3899 unsigned long available_index = 0xFF;
3900 struct i40e_flex_pit *entry;
3901
3902 /* We need to make sure that the new index isn't in use by either L3
3903 * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3904 * L4 to use the same index.
3905 */
3906
3907 list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3908 clear_bit(entry->pit_index, &available_index);
3909
3910 list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3911 clear_bit(entry->pit_index, &available_index);
3912
3913 return find_first_bit(&available_index, 8);
3914 }
3915
3916 /**
3917 * i40e_find_flex_offset - Find an existing flex src_offset
3918 * @flex_pit_list: L3 or L4 flex PIT list
3919 * @src_offset: new src_offset to find
3920 *
3921 * Searches the flex_pit_list for an existing offset. If no offset is
3922 * currently programmed, then this will return an ERR_PTR if there is no space
3923 * to add a new offset, otherwise it returns NULL.
3924 **/
3925 static
i40e_find_flex_offset(struct list_head * flex_pit_list,u16 src_offset)3926 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3927 u16 src_offset)
3928 {
3929 struct i40e_flex_pit *entry;
3930 int size = 0;
3931
3932 /* Search for the src_offset first. If we find a matching entry
3933 * already programmed, we can simply re-use it.
3934 */
3935 list_for_each_entry(entry, flex_pit_list, list) {
3936 size++;
3937 if (entry->src_offset == src_offset)
3938 return entry;
3939 }
3940
3941 /* If we haven't found an entry yet, then the provided src offset has
3942 * not yet been programmed. We will program the src offset later on,
3943 * but we need to indicate whether there is enough space to do so
3944 * here. We'll make use of ERR_PTR for this purpose.
3945 */
3946 if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3947 return ERR_PTR(-ENOSPC);
3948
3949 return NULL;
3950 }
3951
3952 /**
3953 * i40e_add_flex_offset - Add src_offset to flex PIT table list
3954 * @flex_pit_list: L3 or L4 flex PIT list
3955 * @src_offset: new src_offset to add
3956 * @pit_index: the PIT index to program
3957 *
3958 * This function programs the new src_offset to the list. It is expected that
3959 * i40e_find_flex_offset has already been tried and returned NULL, indicating
3960 * that this offset is not programmed, and that the list has enough space to
3961 * store another offset.
3962 *
3963 * Returns 0 on success, and negative value on error.
3964 **/
i40e_add_flex_offset(struct list_head * flex_pit_list,u16 src_offset,u8 pit_index)3965 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3966 u16 src_offset,
3967 u8 pit_index)
3968 {
3969 struct i40e_flex_pit *new_pit, *entry;
3970
3971 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3972 if (!new_pit)
3973 return -ENOMEM;
3974
3975 new_pit->src_offset = src_offset;
3976 new_pit->pit_index = pit_index;
3977
3978 /* We need to insert this item such that the list is sorted by
3979 * src_offset in ascending order.
3980 */
3981 list_for_each_entry(entry, flex_pit_list, list) {
3982 if (new_pit->src_offset < entry->src_offset) {
3983 list_add_tail(&new_pit->list, &entry->list);
3984 return 0;
3985 }
3986
3987 /* If we found an entry with our offset already programmed we
3988 * can simply return here, after freeing the memory. However,
3989 * if the pit_index does not match we need to report an error.
3990 */
3991 if (new_pit->src_offset == entry->src_offset) {
3992 int err = 0;
3993
3994 /* If the PIT index is not the same we can't re-use
3995 * the entry, so we must report an error.
3996 */
3997 if (new_pit->pit_index != entry->pit_index)
3998 err = -EINVAL;
3999
4000 kfree(new_pit);
4001 return err;
4002 }
4003 }
4004
4005 /* If we reached here, then we haven't yet added the item. This means
4006 * that we should add the item at the end of the list.
4007 */
4008 list_add_tail(&new_pit->list, flex_pit_list);
4009 return 0;
4010 }
4011
4012 /**
4013 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
4014 * @pf: Pointer to the PF structure
4015 * @flex_pit_list: list of flexible src offsets in use
4016 * @flex_pit_start: index to first entry for this section of the table
4017 *
4018 * In order to handle flexible data, the hardware uses a table of values
4019 * called the FLX_PIT table. This table is used to indicate which sections of
4020 * the input correspond to what PIT index values. Unfortunately, hardware is
4021 * very restrictive about programming this table. Entries must be ordered by
4022 * src_offset in ascending order, without duplicates. Additionally, unused
4023 * entries must be set to the unused index value, and must have valid size and
4024 * length according to the src_offset ordering.
4025 *
4026 * This function will reprogram the FLX_PIT register from a book-keeping
4027 * structure that we guarantee is already ordered correctly, and has no more
4028 * than 3 entries.
4029 *
4030 * To make things easier, we only support flexible values of one word length,
4031 * rather than allowing variable length flexible values.
4032 **/
__i40e_reprogram_flex_pit(struct i40e_pf * pf,struct list_head * flex_pit_list,int flex_pit_start)4033 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
4034 struct list_head *flex_pit_list,
4035 int flex_pit_start)
4036 {
4037 struct i40e_flex_pit *entry = NULL;
4038 u16 last_offset = 0;
4039 int i = 0, j = 0;
4040
4041 /* First, loop over the list of flex PIT entries, and reprogram the
4042 * registers.
4043 */
4044 list_for_each_entry(entry, flex_pit_list, list) {
4045 /* We have to be careful when programming values for the
4046 * largest SRC_OFFSET value. It is possible that adding
4047 * additional empty values at the end would overflow the space
4048 * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
4049 * we check here and add the empty values prior to adding the
4050 * largest value.
4051 *
4052 * To determine this, we will use a loop from i+1 to 3, which
4053 * will determine whether the unused entries would have valid
4054 * SRC_OFFSET. Note that there cannot be extra entries past
4055 * this value, because the only valid values would have been
4056 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
4057 * have been added to the list in the first place.
4058 */
4059 for (j = i + 1; j < 3; j++) {
4060 u16 offset = entry->src_offset + j;
4061 int index = flex_pit_start + i;
4062 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4063 1,
4064 offset - 3);
4065
4066 if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
4067 i40e_write_rx_ctl(&pf->hw,
4068 I40E_PRTQF_FLX_PIT(index),
4069 value);
4070 i++;
4071 }
4072 }
4073
4074 /* Now, we can program the actual value into the table */
4075 i40e_write_rx_ctl(&pf->hw,
4076 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4077 I40E_FLEX_PREP_VAL(entry->pit_index + 50,
4078 1,
4079 entry->src_offset));
4080 i++;
4081 }
4082
4083 /* In order to program the last entries in the table, we need to
4084 * determine the valid offset. If the list is empty, we'll just start
4085 * with 0. Otherwise, we'll start with the last item offset and add 1.
4086 * This ensures that all entries have valid sizes. If we don't do this
4087 * correctly, the hardware will disable flexible field parsing.
4088 */
4089 if (!list_empty(flex_pit_list))
4090 last_offset = list_prev_entry(entry, list)->src_offset + 1;
4091
4092 for (; i < 3; i++, last_offset++) {
4093 i40e_write_rx_ctl(&pf->hw,
4094 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4095 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4096 1,
4097 last_offset));
4098 }
4099 }
4100
4101 /**
4102 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
4103 * @pf: pointer to the PF structure
4104 *
4105 * This function reprograms both the L3 and L4 FLX_PIT tables. See the
4106 * internal helper function for implementation details.
4107 **/
i40e_reprogram_flex_pit(struct i40e_pf * pf)4108 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
4109 {
4110 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
4111 I40E_FLEX_PIT_IDX_START_L3);
4112
4113 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
4114 I40E_FLEX_PIT_IDX_START_L4);
4115
4116 /* We also need to program the L3 and L4 GLQF ORT register */
4117 i40e_write_rx_ctl(&pf->hw,
4118 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
4119 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
4120 3, 1));
4121
4122 i40e_write_rx_ctl(&pf->hw,
4123 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
4124 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
4125 3, 1));
4126 }
4127
4128 /**
4129 * i40e_flow_str - Converts a flow_type into a human readable string
4130 * @fsp: the flow specification
4131 *
4132 * Currently only flow types we support are included here, and the string
4133 * value attempts to match what ethtool would use to configure this flow type.
4134 **/
i40e_flow_str(struct ethtool_rx_flow_spec * fsp)4135 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
4136 {
4137 switch (fsp->flow_type & ~FLOW_EXT) {
4138 case TCP_V4_FLOW:
4139 return "tcp4";
4140 case UDP_V4_FLOW:
4141 return "udp4";
4142 case SCTP_V4_FLOW:
4143 return "sctp4";
4144 case IP_USER_FLOW:
4145 return "ip4";
4146 case TCP_V6_FLOW:
4147 return "tcp6";
4148 case UDP_V6_FLOW:
4149 return "udp6";
4150 case SCTP_V6_FLOW:
4151 return "sctp6";
4152 case IPV6_USER_FLOW:
4153 return "ip6";
4154 default:
4155 return "unknown";
4156 }
4157 }
4158
4159 /**
4160 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
4161 * @pit_index: PIT index to convert
4162 *
4163 * Returns the mask for a given PIT index. Will return 0 if the pit_index is
4164 * of range.
4165 **/
i40e_pit_index_to_mask(int pit_index)4166 static u64 i40e_pit_index_to_mask(int pit_index)
4167 {
4168 switch (pit_index) {
4169 case 0:
4170 return I40E_FLEX_50_MASK;
4171 case 1:
4172 return I40E_FLEX_51_MASK;
4173 case 2:
4174 return I40E_FLEX_52_MASK;
4175 case 3:
4176 return I40E_FLEX_53_MASK;
4177 case 4:
4178 return I40E_FLEX_54_MASK;
4179 case 5:
4180 return I40E_FLEX_55_MASK;
4181 case 6:
4182 return I40E_FLEX_56_MASK;
4183 case 7:
4184 return I40E_FLEX_57_MASK;
4185 default:
4186 return 0;
4187 }
4188 }
4189
4190 /**
4191 * i40e_print_input_set - Show changes between two input sets
4192 * @vsi: the vsi being configured
4193 * @old: the old input set
4194 * @new: the new input set
4195 *
4196 * Print the difference between old and new input sets by showing which series
4197 * of words are toggled on or off. Only displays the bits we actually support
4198 * changing.
4199 **/
i40e_print_input_set(struct i40e_vsi * vsi,u64 old,u64 new)4200 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4201 {
4202 struct i40e_pf *pf = vsi->back;
4203 bool old_value, new_value;
4204 int i;
4205
4206 old_value = !!(old & I40E_L3_SRC_MASK);
4207 new_value = !!(new & I40E_L3_SRC_MASK);
4208 if (old_value != new_value)
4209 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4210 old_value ? "ON" : "OFF",
4211 new_value ? "ON" : "OFF");
4212
4213 old_value = !!(old & I40E_L3_DST_MASK);
4214 new_value = !!(new & I40E_L3_DST_MASK);
4215 if (old_value != new_value)
4216 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4217 old_value ? "ON" : "OFF",
4218 new_value ? "ON" : "OFF");
4219
4220 old_value = !!(old & I40E_L4_SRC_MASK);
4221 new_value = !!(new & I40E_L4_SRC_MASK);
4222 if (old_value != new_value)
4223 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4224 old_value ? "ON" : "OFF",
4225 new_value ? "ON" : "OFF");
4226
4227 old_value = !!(old & I40E_L4_DST_MASK);
4228 new_value = !!(new & I40E_L4_DST_MASK);
4229 if (old_value != new_value)
4230 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4231 old_value ? "ON" : "OFF",
4232 new_value ? "ON" : "OFF");
4233
4234 old_value = !!(old & I40E_VERIFY_TAG_MASK);
4235 new_value = !!(new & I40E_VERIFY_TAG_MASK);
4236 if (old_value != new_value)
4237 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4238 old_value ? "ON" : "OFF",
4239 new_value ? "ON" : "OFF");
4240
4241 /* Show change of flexible filter entries */
4242 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4243 u64 flex_mask = i40e_pit_index_to_mask(i);
4244
4245 old_value = !!(old & flex_mask);
4246 new_value = !!(new & flex_mask);
4247 if (old_value != new_value)
4248 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4249 i,
4250 old_value ? "ON" : "OFF",
4251 new_value ? "ON" : "OFF");
4252 }
4253
4254 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n",
4255 old);
4256 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4257 new);
4258 }
4259
4260 /**
4261 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4262 * @vsi: pointer to the targeted VSI
4263 * @fsp: pointer to Rx flow specification
4264 * @userdef: userdefined data from flow specification
4265 *
4266 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4267 * for partial matches exists with a few limitations. First, hardware only
4268 * supports masking by word boundary (2 bytes) and not per individual bit.
4269 * Second, hardware is limited to using one mask for a flow type and cannot
4270 * use a separate mask for each filter.
4271 *
4272 * To support these limitations, if we already have a configured filter for
4273 * the specified type, this function enforces that new filters of the type
4274 * match the configured input set. Otherwise, if we do not have a filter of
4275 * the specified type, we allow the input set to be updated to match the
4276 * desired filter.
4277 *
4278 * To help ensure that administrators understand why filters weren't displayed
4279 * as supported, we print a diagnostic message displaying how the input set
4280 * would change and warning to delete the preexisting filters if required.
4281 *
4282 * Returns 0 on successful input set match, and a negative return code on
4283 * failure.
4284 **/
i40e_check_fdir_input_set(struct i40e_vsi * vsi,struct ethtool_rx_flow_spec * fsp,struct i40e_rx_flow_userdef * userdef)4285 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4286 struct ethtool_rx_flow_spec *fsp,
4287 struct i40e_rx_flow_userdef *userdef)
4288 {
4289 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4290 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4291 cpu_to_be32(0xffffffff)};
4292 struct ethtool_tcpip6_spec *tcp_ip6_spec;
4293 struct ethtool_usrip6_spec *usr_ip6_spec;
4294 struct ethtool_tcpip4_spec *tcp_ip4_spec;
4295 struct ethtool_usrip4_spec *usr_ip4_spec;
4296 struct i40e_pf *pf = vsi->back;
4297 u64 current_mask, new_mask;
4298 bool new_flex_offset = false;
4299 bool flex_l3 = false;
4300 u16 *fdir_filter_count;
4301 u16 index, src_offset = 0;
4302 u8 pit_index = 0;
4303 int err;
4304
4305 switch (fsp->flow_type & ~FLOW_EXT) {
4306 case SCTP_V4_FLOW:
4307 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4308 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4309 break;
4310 case TCP_V4_FLOW:
4311 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4312 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4313 break;
4314 case UDP_V4_FLOW:
4315 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4316 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4317 break;
4318 case SCTP_V6_FLOW:
4319 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4320 fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4321 break;
4322 case TCP_V6_FLOW:
4323 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4324 fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4325 break;
4326 case UDP_V6_FLOW:
4327 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4328 fdir_filter_count = &pf->fd_udp6_filter_cnt;
4329 break;
4330 case IP_USER_FLOW:
4331 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4332 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4333 flex_l3 = true;
4334 break;
4335 case IPV6_USER_FLOW:
4336 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4337 fdir_filter_count = &pf->fd_ip6_filter_cnt;
4338 flex_l3 = true;
4339 break;
4340 default:
4341 return -EOPNOTSUPP;
4342 }
4343
4344 /* Read the current input set from register memory. */
4345 current_mask = i40e_read_fd_input_set(pf, index);
4346 new_mask = current_mask;
4347
4348 /* Determine, if any, the required changes to the input set in order
4349 * to support the provided mask.
4350 *
4351 * Hardware only supports masking at word (2 byte) granularity and does
4352 * not support full bitwise masking. This implementation simplifies
4353 * even further and only supports fully enabled or fully disabled
4354 * masks for each field, even though we could split the ip4src and
4355 * ip4dst fields.
4356 */
4357 switch (fsp->flow_type & ~FLOW_EXT) {
4358 case SCTP_V4_FLOW:
4359 new_mask &= ~I40E_VERIFY_TAG_MASK;
4360 fallthrough;
4361 case TCP_V4_FLOW:
4362 case UDP_V4_FLOW:
4363 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4364
4365 /* IPv4 source address */
4366 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4367 new_mask |= I40E_L3_SRC_MASK;
4368 else if (!tcp_ip4_spec->ip4src)
4369 new_mask &= ~I40E_L3_SRC_MASK;
4370 else
4371 return -EOPNOTSUPP;
4372
4373 /* IPv4 destination address */
4374 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4375 new_mask |= I40E_L3_DST_MASK;
4376 else if (!tcp_ip4_spec->ip4dst)
4377 new_mask &= ~I40E_L3_DST_MASK;
4378 else
4379 return -EOPNOTSUPP;
4380
4381 /* L4 source port */
4382 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4383 new_mask |= I40E_L4_SRC_MASK;
4384 else if (!tcp_ip4_spec->psrc)
4385 new_mask &= ~I40E_L4_SRC_MASK;
4386 else
4387 return -EOPNOTSUPP;
4388
4389 /* L4 destination port */
4390 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4391 new_mask |= I40E_L4_DST_MASK;
4392 else if (!tcp_ip4_spec->pdst)
4393 new_mask &= ~I40E_L4_DST_MASK;
4394 else
4395 return -EOPNOTSUPP;
4396
4397 /* Filtering on Type of Service is not supported. */
4398 if (tcp_ip4_spec->tos)
4399 return -EOPNOTSUPP;
4400
4401 break;
4402 case SCTP_V6_FLOW:
4403 new_mask &= ~I40E_VERIFY_TAG_MASK;
4404 fallthrough;
4405 case TCP_V6_FLOW:
4406 case UDP_V6_FLOW:
4407 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4408
4409 /* Check if user provided IPv6 source address. */
4410 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4411 (struct in6_addr *)&ipv6_full_mask))
4412 new_mask |= I40E_L3_V6_SRC_MASK;
4413 else if (ipv6_addr_any((struct in6_addr *)
4414 &tcp_ip6_spec->ip6src))
4415 new_mask &= ~I40E_L3_V6_SRC_MASK;
4416 else
4417 return -EOPNOTSUPP;
4418
4419 /* Check if user provided destination address. */
4420 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4421 (struct in6_addr *)&ipv6_full_mask))
4422 new_mask |= I40E_L3_V6_DST_MASK;
4423 else if (ipv6_addr_any((struct in6_addr *)
4424 &tcp_ip6_spec->ip6dst))
4425 new_mask &= ~I40E_L3_V6_DST_MASK;
4426 else
4427 return -EOPNOTSUPP;
4428
4429 /* L4 source port */
4430 if (tcp_ip6_spec->psrc == htons(0xFFFF))
4431 new_mask |= I40E_L4_SRC_MASK;
4432 else if (!tcp_ip6_spec->psrc)
4433 new_mask &= ~I40E_L4_SRC_MASK;
4434 else
4435 return -EOPNOTSUPP;
4436
4437 /* L4 destination port */
4438 if (tcp_ip6_spec->pdst == htons(0xFFFF))
4439 new_mask |= I40E_L4_DST_MASK;
4440 else if (!tcp_ip6_spec->pdst)
4441 new_mask &= ~I40E_L4_DST_MASK;
4442 else
4443 return -EOPNOTSUPP;
4444
4445 /* Filtering on Traffic Classes is not supported. */
4446 if (tcp_ip6_spec->tclass)
4447 return -EOPNOTSUPP;
4448 break;
4449 case IP_USER_FLOW:
4450 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4451
4452 /* IPv4 source address */
4453 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4454 new_mask |= I40E_L3_SRC_MASK;
4455 else if (!usr_ip4_spec->ip4src)
4456 new_mask &= ~I40E_L3_SRC_MASK;
4457 else
4458 return -EOPNOTSUPP;
4459
4460 /* IPv4 destination address */
4461 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4462 new_mask |= I40E_L3_DST_MASK;
4463 else if (!usr_ip4_spec->ip4dst)
4464 new_mask &= ~I40E_L3_DST_MASK;
4465 else
4466 return -EOPNOTSUPP;
4467
4468 /* First 4 bytes of L4 header */
4469 if (usr_ip4_spec->l4_4_bytes)
4470 return -EOPNOTSUPP;
4471
4472 /* Filtering on Type of Service is not supported. */
4473 if (usr_ip4_spec->tos)
4474 return -EOPNOTSUPP;
4475
4476 /* Filtering on IP version is not supported */
4477 if (usr_ip4_spec->ip_ver)
4478 return -EINVAL;
4479
4480 /* Filtering on L4 protocol is not supported */
4481 if (usr_ip4_spec->proto)
4482 return -EINVAL;
4483
4484 break;
4485 case IPV6_USER_FLOW:
4486 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4487
4488 /* Check if user provided IPv6 source address. */
4489 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4490 (struct in6_addr *)&ipv6_full_mask))
4491 new_mask |= I40E_L3_V6_SRC_MASK;
4492 else if (ipv6_addr_any((struct in6_addr *)
4493 &usr_ip6_spec->ip6src))
4494 new_mask &= ~I40E_L3_V6_SRC_MASK;
4495 else
4496 return -EOPNOTSUPP;
4497
4498 /* Check if user provided destination address. */
4499 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4500 (struct in6_addr *)&ipv6_full_mask))
4501 new_mask |= I40E_L3_V6_DST_MASK;
4502 else if (ipv6_addr_any((struct in6_addr *)
4503 &usr_ip6_spec->ip6dst))
4504 new_mask &= ~I40E_L3_V6_DST_MASK;
4505 else
4506 return -EOPNOTSUPP;
4507
4508 if (usr_ip6_spec->l4_4_bytes)
4509 return -EOPNOTSUPP;
4510
4511 /* Filtering on Traffic class is not supported. */
4512 if (usr_ip6_spec->tclass)
4513 return -EOPNOTSUPP;
4514
4515 /* Filtering on L4 protocol is not supported */
4516 if (usr_ip6_spec->l4_proto)
4517 return -EINVAL;
4518
4519 break;
4520 default:
4521 return -EOPNOTSUPP;
4522 }
4523
4524 if (fsp->flow_type & FLOW_EXT) {
4525 /* Allow only 802.1Q and no etype defined, as
4526 * later it's modified to 0x8100
4527 */
4528 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4529 fsp->h_ext.vlan_etype != 0)
4530 return -EOPNOTSUPP;
4531 if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4532 new_mask |= I40E_VLAN_SRC_MASK;
4533 else
4534 new_mask &= ~I40E_VLAN_SRC_MASK;
4535 }
4536
4537 /* First, clear all flexible filter entries */
4538 new_mask &= ~I40E_FLEX_INPUT_MASK;
4539
4540 /* If we have a flexible filter, try to add this offset to the correct
4541 * flexible filter PIT list. Once finished, we can update the mask.
4542 * If the src_offset changed, we will get a new mask value which will
4543 * trigger an input set change.
4544 */
4545 if (userdef->flex_filter) {
4546 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4547
4548 /* Flexible offset must be even, since the flexible payload
4549 * must be aligned on 2-byte boundary.
4550 */
4551 if (userdef->flex_offset & 0x1) {
4552 dev_warn(&pf->pdev->dev,
4553 "Flexible data offset must be 2-byte aligned\n");
4554 return -EINVAL;
4555 }
4556
4557 src_offset = userdef->flex_offset >> 1;
4558
4559 /* FLX_PIT source offset value is only so large */
4560 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4561 dev_warn(&pf->pdev->dev,
4562 "Flexible data must reside within first 64 bytes of the packet payload\n");
4563 return -EINVAL;
4564 }
4565
4566 /* See if this offset has already been programmed. If we get
4567 * an ERR_PTR, then the filter is not safe to add. Otherwise,
4568 * if we get a NULL pointer, this means we will need to add
4569 * the offset.
4570 */
4571 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4572 src_offset);
4573 if (IS_ERR(flex_pit))
4574 return PTR_ERR(flex_pit);
4575
4576 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4577 * packet types, and thus we need to program both L3 and L4
4578 * flexible values. These must have identical flexible index,
4579 * as otherwise we can't correctly program the input set. So
4580 * we'll find both an L3 and L4 index and make sure they are
4581 * the same.
4582 */
4583 if (flex_l3) {
4584 l3_flex_pit =
4585 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4586 src_offset);
4587 if (IS_ERR(l3_flex_pit))
4588 return PTR_ERR(l3_flex_pit);
4589
4590 if (flex_pit) {
4591 /* If we already had a matching L4 entry, we
4592 * need to make sure that the L3 entry we
4593 * obtained uses the same index.
4594 */
4595 if (l3_flex_pit) {
4596 if (l3_flex_pit->pit_index !=
4597 flex_pit->pit_index) {
4598 return -EINVAL;
4599 }
4600 } else {
4601 new_flex_offset = true;
4602 }
4603 } else {
4604 flex_pit = l3_flex_pit;
4605 }
4606 }
4607
4608 /* If we didn't find an existing flex offset, we need to
4609 * program a new one. However, we don't immediately program it
4610 * here because we will wait to program until after we check
4611 * that it is safe to change the input set.
4612 */
4613 if (!flex_pit) {
4614 new_flex_offset = true;
4615 pit_index = i40e_unused_pit_index(pf);
4616 } else {
4617 pit_index = flex_pit->pit_index;
4618 }
4619
4620 /* Update the mask with the new offset */
4621 new_mask |= i40e_pit_index_to_mask(pit_index);
4622 }
4623
4624 /* If the mask and flexible filter offsets for this filter match the
4625 * currently programmed values we don't need any input set change, so
4626 * this filter is safe to install.
4627 */
4628 if (new_mask == current_mask && !new_flex_offset)
4629 return 0;
4630
4631 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4632 i40e_flow_str(fsp));
4633 i40e_print_input_set(vsi, current_mask, new_mask);
4634 if (new_flex_offset) {
4635 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4636 pit_index, src_offset);
4637 }
4638
4639 /* Hardware input sets are global across multiple ports, so even the
4640 * main port cannot change them when in MFP mode as this would impact
4641 * any filters on the other ports.
4642 */
4643 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4644 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4645 return -EOPNOTSUPP;
4646 }
4647
4648 /* This filter requires us to update the input set. However, hardware
4649 * only supports one input set per flow type, and does not support
4650 * separate masks for each filter. This means that we can only support
4651 * a single mask for all filters of a specific type.
4652 *
4653 * If we have preexisting filters, they obviously depend on the
4654 * current programmed input set. Display a diagnostic message in this
4655 * case explaining why the filter could not be accepted.
4656 */
4657 if (*fdir_filter_count) {
4658 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4659 i40e_flow_str(fsp),
4660 *fdir_filter_count);
4661 return -EOPNOTSUPP;
4662 }
4663
4664 i40e_write_fd_input_set(pf, index, new_mask);
4665
4666 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4667 * frames. If we're programming the input set for IPv4/Other, we also
4668 * need to program the IPv4/Fragmented input set. Since we don't have
4669 * separate support, we'll always assume and enforce that the two flow
4670 * types must have matching input sets.
4671 */
4672 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4673 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4674 new_mask);
4675
4676 /* Add the new offset and update table, if necessary */
4677 if (new_flex_offset) {
4678 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4679 pit_index);
4680 if (err)
4681 return err;
4682
4683 if (flex_l3) {
4684 err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4685 src_offset,
4686 pit_index);
4687 if (err)
4688 return err;
4689 }
4690
4691 i40e_reprogram_flex_pit(pf);
4692 }
4693
4694 return 0;
4695 }
4696
4697 /**
4698 * i40e_match_fdir_filter - Return true of two filters match
4699 * @a: pointer to filter struct
4700 * @b: pointer to filter struct
4701 *
4702 * Returns true if the two filters match exactly the same criteria. I.e. they
4703 * match the same flow type and have the same parameters. We don't need to
4704 * check any input-set since all filters of the same flow type must use the
4705 * same input set.
4706 **/
i40e_match_fdir_filter(struct i40e_fdir_filter * a,struct i40e_fdir_filter * b)4707 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4708 struct i40e_fdir_filter *b)
4709 {
4710 /* The filters do not much if any of these criteria differ. */
4711 if (a->dst_ip != b->dst_ip ||
4712 a->src_ip != b->src_ip ||
4713 a->dst_port != b->dst_port ||
4714 a->src_port != b->src_port ||
4715 a->flow_type != b->flow_type ||
4716 a->ipl4_proto != b->ipl4_proto ||
4717 a->vlan_tag != b->vlan_tag ||
4718 a->vlan_etype != b->vlan_etype)
4719 return false;
4720
4721 return true;
4722 }
4723
4724 /**
4725 * i40e_disallow_matching_filters - Check that new filters differ
4726 * @vsi: pointer to the targeted VSI
4727 * @input: new filter to check
4728 *
4729 * Due to hardware limitations, it is not possible for two filters that match
4730 * similar criteria to be programmed at the same time. This is true for a few
4731 * reasons:
4732 *
4733 * (a) all filters matching a particular flow type must use the same input
4734 * set, that is they must match the same criteria.
4735 * (b) different flow types will never match the same packet, as the flow type
4736 * is decided by hardware before checking which rules apply.
4737 * (c) hardware has no way to distinguish which order filters apply in.
4738 *
4739 * Due to this, we can't really support using the location data to order
4740 * filters in the hardware parsing. It is technically possible for the user to
4741 * request two filters matching the same criteria but which select different
4742 * queues. In this case, rather than keep both filters in the list, we reject
4743 * the 2nd filter when the user requests adding it.
4744 *
4745 * This avoids needing to track location for programming the filter to
4746 * hardware, and ensures that we avoid some strange scenarios involving
4747 * deleting filters which match the same criteria.
4748 **/
i40e_disallow_matching_filters(struct i40e_vsi * vsi,struct i40e_fdir_filter * input)4749 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4750 struct i40e_fdir_filter *input)
4751 {
4752 struct i40e_pf *pf = vsi->back;
4753 struct i40e_fdir_filter *rule;
4754 struct hlist_node *node2;
4755
4756 /* Loop through every filter, and check that it doesn't match */
4757 hlist_for_each_entry_safe(rule, node2,
4758 &pf->fdir_filter_list, fdir_node) {
4759 /* Don't check the filters match if they share the same fd_id,
4760 * since the new filter is actually just updating the target
4761 * of the old filter.
4762 */
4763 if (rule->fd_id == input->fd_id)
4764 continue;
4765
4766 /* If any filters match, then print a warning message to the
4767 * kernel message buffer and bail out.
4768 */
4769 if (i40e_match_fdir_filter(rule, input)) {
4770 dev_warn(&pf->pdev->dev,
4771 "Existing user defined filter %d already matches this flow.\n",
4772 rule->fd_id);
4773 return -EINVAL;
4774 }
4775 }
4776
4777 return 0;
4778 }
4779
4780 /**
4781 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4782 * @vsi: pointer to the targeted VSI
4783 * @cmd: command to get or set RX flow classification rules
4784 *
4785 * Add Flow Director filters for a specific flow spec based on their
4786 * protocol. Returns 0 if the filters were successfully added.
4787 **/
i40e_add_fdir_ethtool(struct i40e_vsi * vsi,struct ethtool_rxnfc * cmd)4788 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4789 struct ethtool_rxnfc *cmd)
4790 {
4791 struct i40e_rx_flow_userdef userdef;
4792 struct ethtool_rx_flow_spec *fsp;
4793 struct i40e_fdir_filter *input;
4794 u16 dest_vsi = 0, q_index = 0;
4795 struct i40e_pf *pf;
4796 int ret = -EINVAL;
4797 u8 dest_ctl;
4798
4799 if (!vsi)
4800 return -EINVAL;
4801 pf = vsi->back;
4802
4803 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4804 return -EOPNOTSUPP;
4805
4806 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4807 return -ENOSPC;
4808
4809 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4810 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4811 return -EBUSY;
4812
4813 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4814 return -EBUSY;
4815
4816 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4817
4818 /* Parse the user-defined field */
4819 if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4820 return -EINVAL;
4821
4822 /* Extended MAC field is not supported */
4823 if (fsp->flow_type & FLOW_MAC_EXT)
4824 return -EINVAL;
4825
4826 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4827 if (ret)
4828 return ret;
4829
4830 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4831 pf->hw.func_caps.fd_filters_guaranteed)) {
4832 return -EINVAL;
4833 }
4834
4835 /* ring_cookie is either the drop index, or is a mask of the queue
4836 * index and VF id we wish to target.
4837 */
4838 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4839 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4840 } else {
4841 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4842 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4843
4844 if (!vf) {
4845 if (ring >= vsi->num_queue_pairs)
4846 return -EINVAL;
4847 dest_vsi = vsi->id;
4848 } else {
4849 /* VFs are zero-indexed, so we subtract one here */
4850 vf--;
4851
4852 if (vf >= pf->num_alloc_vfs)
4853 return -EINVAL;
4854 if (ring >= pf->vf[vf].num_queue_pairs)
4855 return -EINVAL;
4856 dest_vsi = pf->vf[vf].lan_vsi_id;
4857 }
4858 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4859 q_index = ring;
4860 }
4861
4862 input = kzalloc(sizeof(*input), GFP_KERNEL);
4863
4864 if (!input)
4865 return -ENOMEM;
4866
4867 input->fd_id = fsp->location;
4868 input->q_index = q_index;
4869 input->dest_vsi = dest_vsi;
4870 input->dest_ctl = dest_ctl;
4871 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4872 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4873 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4874 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4875 input->flow_type = fsp->flow_type & ~FLOW_EXT;
4876
4877 input->vlan_etype = fsp->h_ext.vlan_etype;
4878 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4879 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4880 if (fsp->m_ext.vlan_tci && input->vlan_etype)
4881 input->vlan_tag = fsp->h_ext.vlan_tci;
4882 if (input->flow_type == IPV6_USER_FLOW ||
4883 input->flow_type == UDP_V6_FLOW ||
4884 input->flow_type == TCP_V6_FLOW ||
4885 input->flow_type == SCTP_V6_FLOW) {
4886 /* Reverse the src and dest notion, since the HW expects them
4887 * to be from Tx perspective where as the input from user is
4888 * from Rx filter view.
4889 */
4890 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4891 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4892 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4893 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4894 sizeof(__be32) * 4);
4895 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4896 sizeof(__be32) * 4);
4897 } else {
4898 /* Reverse the src and dest notion, since the HW expects them
4899 * to be from Tx perspective where as the input from user is
4900 * from Rx filter view.
4901 */
4902 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4903 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4904 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4905 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4906 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4907 }
4908
4909 if (userdef.flex_filter) {
4910 input->flex_filter = true;
4911 input->flex_word = cpu_to_be16(userdef.flex_word);
4912 input->flex_offset = userdef.flex_offset;
4913 }
4914
4915 /* Avoid programming two filters with identical match criteria. */
4916 ret = i40e_disallow_matching_filters(vsi, input);
4917 if (ret)
4918 goto free_filter_memory;
4919
4920 /* Add the input filter to the fdir_input_list, possibly replacing
4921 * a previous filter. Do not free the input structure after adding it
4922 * to the list as this would cause a use-after-free bug.
4923 */
4924 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4925 ret = i40e_add_del_fdir(vsi, input, true);
4926 if (ret)
4927 goto remove_sw_rule;
4928 return 0;
4929
4930 remove_sw_rule:
4931 hlist_del(&input->fdir_node);
4932 pf->fdir_pf_active_filters--;
4933 free_filter_memory:
4934 kfree(input);
4935 return ret;
4936 }
4937
4938 /**
4939 * i40e_set_rxnfc - command to set RX flow classification rules
4940 * @netdev: network interface device structure
4941 * @cmd: ethtool rxnfc command
4942 *
4943 * Returns Success if the command is supported.
4944 **/
i40e_set_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * cmd)4945 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4946 {
4947 struct i40e_netdev_priv *np = netdev_priv(netdev);
4948 struct i40e_vsi *vsi = np->vsi;
4949 struct i40e_pf *pf = vsi->back;
4950 int ret = -EOPNOTSUPP;
4951
4952 switch (cmd->cmd) {
4953 case ETHTOOL_SRXFH:
4954 ret = i40e_set_rss_hash_opt(pf, cmd);
4955 break;
4956 case ETHTOOL_SRXCLSRLINS:
4957 ret = i40e_add_fdir_ethtool(vsi, cmd);
4958 break;
4959 case ETHTOOL_SRXCLSRLDEL:
4960 ret = i40e_del_fdir_entry(vsi, cmd);
4961 break;
4962 default:
4963 break;
4964 }
4965
4966 return ret;
4967 }
4968
4969 /**
4970 * i40e_max_channels - get Max number of combined channels supported
4971 * @vsi: vsi pointer
4972 **/
i40e_max_channels(struct i40e_vsi * vsi)4973 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4974 {
4975 /* TODO: This code assumes DCB and FD is disabled for now. */
4976 return vsi->alloc_queue_pairs;
4977 }
4978
4979 /**
4980 * i40e_get_channels - Get the current channels enabled and max supported etc.
4981 * @dev: network interface device structure
4982 * @ch: ethtool channels structure
4983 *
4984 * We don't support separate tx and rx queues as channels. The other count
4985 * represents how many queues are being used for control. max_combined counts
4986 * how many queue pairs we can support. They may not be mapped 1 to 1 with
4987 * q_vectors since we support a lot more queue pairs than q_vectors.
4988 **/
i40e_get_channels(struct net_device * dev,struct ethtool_channels * ch)4989 static void i40e_get_channels(struct net_device *dev,
4990 struct ethtool_channels *ch)
4991 {
4992 struct i40e_netdev_priv *np = netdev_priv(dev);
4993 struct i40e_vsi *vsi = np->vsi;
4994 struct i40e_pf *pf = vsi->back;
4995
4996 /* report maximum channels */
4997 ch->max_combined = i40e_max_channels(vsi);
4998
4999 /* report info for other vector */
5000 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
5001 ch->max_other = ch->other_count;
5002
5003 /* Note: This code assumes DCB is disabled for now. */
5004 ch->combined_count = vsi->num_queue_pairs;
5005 }
5006
5007 /**
5008 * i40e_set_channels - Set the new channels count.
5009 * @dev: network interface device structure
5010 * @ch: ethtool channels structure
5011 *
5012 * The new channels count may not be the same as requested by the user
5013 * since it gets rounded down to a power of 2 value.
5014 **/
i40e_set_channels(struct net_device * dev,struct ethtool_channels * ch)5015 static int i40e_set_channels(struct net_device *dev,
5016 struct ethtool_channels *ch)
5017 {
5018 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
5019 struct i40e_netdev_priv *np = netdev_priv(dev);
5020 unsigned int count = ch->combined_count;
5021 struct i40e_vsi *vsi = np->vsi;
5022 struct i40e_pf *pf = vsi->back;
5023 struct i40e_fdir_filter *rule;
5024 struct hlist_node *node2;
5025 int new_count;
5026 int err = 0;
5027
5028 /* We do not support setting channels for any other VSI at present */
5029 if (vsi->type != I40E_VSI_MAIN)
5030 return -EINVAL;
5031
5032 /* We do not support setting channels via ethtool when TCs are
5033 * configured through mqprio
5034 */
5035 if (i40e_is_tc_mqprio_enabled(pf))
5036 return -EINVAL;
5037
5038 /* verify they are not requesting separate vectors */
5039 if (!count || ch->rx_count || ch->tx_count)
5040 return -EINVAL;
5041
5042 /* verify other_count has not changed */
5043 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
5044 return -EINVAL;
5045
5046 /* verify the number of channels does not exceed hardware limits */
5047 if (count > i40e_max_channels(vsi))
5048 return -EINVAL;
5049
5050 /* verify that the number of channels does not invalidate any current
5051 * flow director rules
5052 */
5053 hlist_for_each_entry_safe(rule, node2,
5054 &pf->fdir_filter_list, fdir_node) {
5055 if (rule->dest_ctl != drop && count <= rule->q_index) {
5056 dev_warn(&pf->pdev->dev,
5057 "Existing user defined filter %d assigns flow to queue %d\n",
5058 rule->fd_id, rule->q_index);
5059 err = -EINVAL;
5060 }
5061 }
5062
5063 if (err) {
5064 dev_err(&pf->pdev->dev,
5065 "Existing filter rules must be deleted to reduce combined channel count to %d\n",
5066 count);
5067 return err;
5068 }
5069
5070 /* update feature limits from largest to smallest supported values */
5071 /* TODO: Flow director limit, DCB etc */
5072
5073 /* use rss_reconfig to rebuild with new queue count and update traffic
5074 * class queue mapping
5075 */
5076 new_count = i40e_reconfig_rss_queues(pf, count);
5077 if (new_count > 0)
5078 return 0;
5079 else
5080 return -EINVAL;
5081 }
5082
5083 /**
5084 * i40e_get_rxfh_key_size - get the RSS hash key size
5085 * @netdev: network interface device structure
5086 *
5087 * Returns the table size.
5088 **/
i40e_get_rxfh_key_size(struct net_device * netdev)5089 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
5090 {
5091 return I40E_HKEY_ARRAY_SIZE;
5092 }
5093
5094 /**
5095 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
5096 * @netdev: network interface device structure
5097 *
5098 * Returns the table size.
5099 **/
i40e_get_rxfh_indir_size(struct net_device * netdev)5100 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
5101 {
5102 return I40E_HLUT_ARRAY_SIZE;
5103 }
5104
5105 /**
5106 * i40e_get_rxfh - get the rx flow hash indirection table
5107 * @netdev: network interface device structure
5108 * @indir: indirection table
5109 * @key: hash key
5110 * @hfunc: hash function
5111 *
5112 * Reads the indirection table directly from the hardware. Returns 0 on
5113 * success.
5114 **/
i40e_get_rxfh(struct net_device * netdev,u32 * indir,u8 * key,u8 * hfunc)5115 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
5116 u8 *hfunc)
5117 {
5118 struct i40e_netdev_priv *np = netdev_priv(netdev);
5119 struct i40e_vsi *vsi = np->vsi;
5120 u8 *lut, *seed = NULL;
5121 int ret;
5122 u16 i;
5123
5124 if (hfunc)
5125 *hfunc = ETH_RSS_HASH_TOP;
5126
5127 if (!indir)
5128 return 0;
5129
5130 seed = key;
5131 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5132 if (!lut)
5133 return -ENOMEM;
5134 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
5135 if (ret)
5136 goto out;
5137 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5138 indir[i] = (u32)(lut[i]);
5139
5140 out:
5141 kfree(lut);
5142
5143 return ret;
5144 }
5145
5146 /**
5147 * i40e_set_rxfh - set the rx flow hash indirection table
5148 * @netdev: network interface device structure
5149 * @indir: indirection table
5150 * @key: hash key
5151 * @hfunc: hash function to use
5152 *
5153 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
5154 * returns 0 after programming the table.
5155 **/
i40e_set_rxfh(struct net_device * netdev,const u32 * indir,const u8 * key,const u8 hfunc)5156 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
5157 const u8 *key, const u8 hfunc)
5158 {
5159 struct i40e_netdev_priv *np = netdev_priv(netdev);
5160 struct i40e_vsi *vsi = np->vsi;
5161 struct i40e_pf *pf = vsi->back;
5162 u8 *seed = NULL;
5163 u16 i;
5164
5165 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
5166 return -EOPNOTSUPP;
5167
5168 if (key) {
5169 if (!vsi->rss_hkey_user) {
5170 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5171 GFP_KERNEL);
5172 if (!vsi->rss_hkey_user)
5173 return -ENOMEM;
5174 }
5175 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
5176 seed = vsi->rss_hkey_user;
5177 }
5178 if (!vsi->rss_lut_user) {
5179 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5180 if (!vsi->rss_lut_user)
5181 return -ENOMEM;
5182 }
5183
5184 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
5185 if (indir)
5186 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5187 vsi->rss_lut_user[i] = (u8)(indir[i]);
5188 else
5189 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5190 vsi->rss_size);
5191
5192 return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5193 I40E_HLUT_ARRAY_SIZE);
5194 }
5195
5196 /**
5197 * i40e_get_priv_flags - report device private flags
5198 * @dev: network interface device structure
5199 *
5200 * The get string set count and the string set should be matched for each
5201 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags
5202 * array.
5203 *
5204 * Returns a u32 bitmap of flags.
5205 **/
i40e_get_priv_flags(struct net_device * dev)5206 static u32 i40e_get_priv_flags(struct net_device *dev)
5207 {
5208 struct i40e_netdev_priv *np = netdev_priv(dev);
5209 struct i40e_vsi *vsi = np->vsi;
5210 struct i40e_pf *pf = vsi->back;
5211 u32 i, j, ret_flags = 0;
5212
5213 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5214 const struct i40e_priv_flags *priv_flags;
5215
5216 priv_flags = &i40e_gstrings_priv_flags[i];
5217
5218 if (priv_flags->flag & pf->flags)
5219 ret_flags |= BIT(i);
5220 }
5221
5222 if (pf->hw.pf_id != 0)
5223 return ret_flags;
5224
5225 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5226 const struct i40e_priv_flags *priv_flags;
5227
5228 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5229
5230 if (priv_flags->flag & pf->flags)
5231 ret_flags |= BIT(i + j);
5232 }
5233
5234 return ret_flags;
5235 }
5236
5237 /**
5238 * i40e_set_priv_flags - set private flags
5239 * @dev: network interface device structure
5240 * @flags: bit flags to be set
5241 **/
i40e_set_priv_flags(struct net_device * dev,u32 flags)5242 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5243 {
5244 struct i40e_netdev_priv *np = netdev_priv(dev);
5245 u64 orig_flags, new_flags, changed_flags;
5246 enum i40e_admin_queue_err adq_err;
5247 struct i40e_vsi *vsi = np->vsi;
5248 struct i40e_pf *pf = vsi->back;
5249 u32 reset_needed = 0;
5250 int status;
5251 u32 i, j;
5252
5253 orig_flags = READ_ONCE(pf->flags);
5254 new_flags = orig_flags;
5255
5256 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5257 const struct i40e_priv_flags *priv_flags;
5258
5259 priv_flags = &i40e_gstrings_priv_flags[i];
5260
5261 if (flags & BIT(i))
5262 new_flags |= priv_flags->flag;
5263 else
5264 new_flags &= ~(priv_flags->flag);
5265
5266 /* If this is a read-only flag, it can't be changed */
5267 if (priv_flags->read_only &&
5268 ((orig_flags ^ new_flags) & ~BIT(i)))
5269 return -EOPNOTSUPP;
5270 }
5271
5272 if (pf->hw.pf_id != 0)
5273 goto flags_complete;
5274
5275 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5276 const struct i40e_priv_flags *priv_flags;
5277
5278 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5279
5280 if (flags & BIT(i + j))
5281 new_flags |= priv_flags->flag;
5282 else
5283 new_flags &= ~(priv_flags->flag);
5284
5285 /* If this is a read-only flag, it can't be changed */
5286 if (priv_flags->read_only &&
5287 ((orig_flags ^ new_flags) & ~BIT(i)))
5288 return -EOPNOTSUPP;
5289 }
5290
5291 flags_complete:
5292 changed_flags = orig_flags ^ new_flags;
5293
5294 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP)
5295 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5296 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
5297 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED))
5298 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5299
5300 /* Before we finalize any flag changes, we need to perform some
5301 * checks to ensure that the changes are supported and safe.
5302 */
5303
5304 /* ATR eviction is not supported on all devices */
5305 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
5306 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
5307 return -EOPNOTSUPP;
5308
5309 /* If the driver detected FW LLDP was disabled on init, this flag could
5310 * be set, however we do not support _changing_ the flag:
5311 * - on XL710 if NPAR is enabled or FW API version < 1.7
5312 * - on X722 with FW API version < 1.6
5313 * There are situations where older FW versions/NPAR enabled PFs could
5314 * disable LLDP, however we _must_ not allow the user to enable/disable
5315 * LLDP with this flag on unsupported FW versions.
5316 */
5317 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5318 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
5319 dev_warn(&pf->pdev->dev,
5320 "Device does not support changing FW LLDP\n");
5321 return -EOPNOTSUPP;
5322 }
5323 }
5324
5325 if (changed_flags & I40E_FLAG_RS_FEC &&
5326 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5327 pf->hw.device_id != I40E_DEV_ID_25G_B) {
5328 dev_warn(&pf->pdev->dev,
5329 "Device does not support changing FEC configuration\n");
5330 return -EOPNOTSUPP;
5331 }
5332
5333 if (changed_flags & I40E_FLAG_BASE_R_FEC &&
5334 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5335 pf->hw.device_id != I40E_DEV_ID_25G_B &&
5336 pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5337 dev_warn(&pf->pdev->dev,
5338 "Device does not support changing FEC configuration\n");
5339 return -EOPNOTSUPP;
5340 }
5341
5342 /* Process any additional changes needed as a result of flag changes.
5343 * The changed_flags value reflects the list of bits that were
5344 * changed in the code above.
5345 */
5346
5347 /* Flush current ATR settings if ATR was disabled */
5348 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
5349 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
5350 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5351 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5352 }
5353
5354 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
5355 u16 sw_flags = 0, valid_flags = 0;
5356 int ret;
5357
5358 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
5359 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5360 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5361 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5362 0, NULL);
5363 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5364 dev_info(&pf->pdev->dev,
5365 "couldn't set switch config bits, err %pe aq_err %s\n",
5366 ERR_PTR(ret),
5367 i40e_aq_str(&pf->hw,
5368 pf->hw.aq.asq_last_status));
5369 /* not a fatal problem, just keep going */
5370 }
5371 }
5372
5373 if ((changed_flags & I40E_FLAG_RS_FEC) ||
5374 (changed_flags & I40E_FLAG_BASE_R_FEC)) {
5375 u8 fec_cfg = 0;
5376
5377 if (new_flags & I40E_FLAG_RS_FEC &&
5378 new_flags & I40E_FLAG_BASE_R_FEC) {
5379 fec_cfg = I40E_AQ_SET_FEC_AUTO;
5380 } else if (new_flags & I40E_FLAG_RS_FEC) {
5381 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5382 I40E_AQ_SET_FEC_ABILITY_RS);
5383 } else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5384 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5385 I40E_AQ_SET_FEC_ABILITY_KR);
5386 }
5387 if (i40e_set_fec_cfg(dev, fec_cfg))
5388 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5389 }
5390
5391 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5392 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) {
5393 dev_err(&pf->pdev->dev,
5394 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5395 return -EOPNOTSUPP;
5396 }
5397
5398 if ((changed_flags & I40E_FLAG_VF_VLAN_PRUNING) &&
5399 pf->num_alloc_vfs) {
5400 dev_warn(&pf->pdev->dev,
5401 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n");
5402 return -EOPNOTSUPP;
5403 }
5404
5405 if ((changed_flags & I40E_FLAG_LEGACY_RX) &&
5406 I40E_2K_TOO_SMALL_WITH_PADDING) {
5407 dev_warn(&pf->pdev->dev,
5408 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n");
5409 return -EOPNOTSUPP;
5410 }
5411
5412 if ((changed_flags & new_flags &
5413 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5414 (new_flags & I40E_FLAG_MFP_ENABLED))
5415 dev_warn(&pf->pdev->dev,
5416 "Turning on link-down-on-close flag may affect other partitions\n");
5417
5418 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5419 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5420 #ifdef CONFIG_I40E_DCB
5421 i40e_dcb_sw_default_config(pf);
5422 #endif /* CONFIG_I40E_DCB */
5423 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5424 i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5425 } else {
5426 status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5427 if (status) {
5428 adq_err = pf->hw.aq.asq_last_status;
5429 switch (adq_err) {
5430 case I40E_AQ_RC_EEXIST:
5431 dev_warn(&pf->pdev->dev,
5432 "FW LLDP agent is already running\n");
5433 reset_needed = 0;
5434 break;
5435 case I40E_AQ_RC_EPERM:
5436 dev_warn(&pf->pdev->dev,
5437 "Device configuration forbids SW from starting the LLDP agent.\n");
5438 return -EINVAL;
5439 case I40E_AQ_RC_EAGAIN:
5440 dev_warn(&pf->pdev->dev,
5441 "Stop FW LLDP agent command is still being processed, please try again in a second.\n");
5442 return -EBUSY;
5443 default:
5444 dev_warn(&pf->pdev->dev,
5445 "Starting FW LLDP agent failed: error: %pe, %s\n",
5446 ERR_PTR(status),
5447 i40e_aq_str(&pf->hw,
5448 adq_err));
5449 return -EINVAL;
5450 }
5451 }
5452 }
5453 }
5454
5455 /* Now that we've checked to ensure that the new flags are valid, load
5456 * them into place. Since we only modify flags either (a) during
5457 * initialization or (b) while holding the RTNL lock, we don't need
5458 * anything fancy here.
5459 */
5460 pf->flags = new_flags;
5461
5462 /* Issue reset to cause things to take effect, as additional bits
5463 * are added we will need to create a mask of bits requiring reset
5464 */
5465 if (reset_needed)
5466 i40e_do_reset(pf, reset_needed, true);
5467
5468 return 0;
5469 }
5470
5471 /**
5472 * i40e_get_module_info - get (Q)SFP+ module type info
5473 * @netdev: network interface device structure
5474 * @modinfo: module EEPROM size and layout information structure
5475 **/
i40e_get_module_info(struct net_device * netdev,struct ethtool_modinfo * modinfo)5476 static int i40e_get_module_info(struct net_device *netdev,
5477 struct ethtool_modinfo *modinfo)
5478 {
5479 struct i40e_netdev_priv *np = netdev_priv(netdev);
5480 struct i40e_vsi *vsi = np->vsi;
5481 struct i40e_pf *pf = vsi->back;
5482 struct i40e_hw *hw = &pf->hw;
5483 u32 sff8472_comp = 0;
5484 u32 sff8472_swap = 0;
5485 u32 sff8636_rev = 0;
5486 u32 type = 0;
5487 int status;
5488
5489 /* Check if firmware supports reading module EEPROM. */
5490 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5491 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5492 return -EINVAL;
5493 }
5494
5495 status = i40e_update_link_info(hw);
5496 if (status)
5497 return -EIO;
5498
5499 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5500 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5501 return -EINVAL;
5502 }
5503
5504 type = hw->phy.link_info.module_type[0];
5505
5506 switch (type) {
5507 case I40E_MODULE_TYPE_SFP:
5508 status = i40e_aq_get_phy_register(hw,
5509 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5510 I40E_I2C_EEPROM_DEV_ADDR, true,
5511 I40E_MODULE_SFF_8472_COMP,
5512 &sff8472_comp, NULL);
5513 if (status)
5514 return -EIO;
5515
5516 status = i40e_aq_get_phy_register(hw,
5517 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5518 I40E_I2C_EEPROM_DEV_ADDR, true,
5519 I40E_MODULE_SFF_8472_SWAP,
5520 &sff8472_swap, NULL);
5521 if (status)
5522 return -EIO;
5523
5524 /* Check if the module requires address swap to access
5525 * the other EEPROM memory page.
5526 */
5527 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5528 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5529 modinfo->type = ETH_MODULE_SFF_8079;
5530 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5531 } else if (sff8472_comp == 0x00) {
5532 /* Module is not SFF-8472 compliant */
5533 modinfo->type = ETH_MODULE_SFF_8079;
5534 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5535 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5536 /* Module is SFF-8472 compliant but doesn't implement
5537 * Digital Diagnostic Monitoring (DDM).
5538 */
5539 modinfo->type = ETH_MODULE_SFF_8079;
5540 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5541 } else {
5542 modinfo->type = ETH_MODULE_SFF_8472;
5543 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5544 }
5545 break;
5546 case I40E_MODULE_TYPE_QSFP_PLUS:
5547 /* Read from memory page 0. */
5548 status = i40e_aq_get_phy_register(hw,
5549 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5550 0, true,
5551 I40E_MODULE_REVISION_ADDR,
5552 &sff8636_rev, NULL);
5553 if (status)
5554 return -EIO;
5555 /* Determine revision compliance byte */
5556 if (sff8636_rev > 0x02) {
5557 /* Module is SFF-8636 compliant */
5558 modinfo->type = ETH_MODULE_SFF_8636;
5559 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5560 } else {
5561 modinfo->type = ETH_MODULE_SFF_8436;
5562 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5563 }
5564 break;
5565 case I40E_MODULE_TYPE_QSFP28:
5566 modinfo->type = ETH_MODULE_SFF_8636;
5567 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5568 break;
5569 default:
5570 netdev_err(vsi->netdev, "Module type unrecognized\n");
5571 return -EINVAL;
5572 }
5573 return 0;
5574 }
5575
5576 /**
5577 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5578 * @netdev: network interface device structure
5579 * @ee: EEPROM dump request structure
5580 * @data: buffer to be filled with EEPROM contents
5581 **/
i40e_get_module_eeprom(struct net_device * netdev,struct ethtool_eeprom * ee,u8 * data)5582 static int i40e_get_module_eeprom(struct net_device *netdev,
5583 struct ethtool_eeprom *ee,
5584 u8 *data)
5585 {
5586 struct i40e_netdev_priv *np = netdev_priv(netdev);
5587 struct i40e_vsi *vsi = np->vsi;
5588 struct i40e_pf *pf = vsi->back;
5589 struct i40e_hw *hw = &pf->hw;
5590 bool is_sfp = false;
5591 u32 value = 0;
5592 int status;
5593 int i;
5594
5595 if (!ee || !ee->len || !data)
5596 return -EINVAL;
5597
5598 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5599 is_sfp = true;
5600
5601 for (i = 0; i < ee->len; i++) {
5602 u32 offset = i + ee->offset;
5603 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5604
5605 /* Check if we need to access the other memory page */
5606 if (is_sfp) {
5607 if (offset >= ETH_MODULE_SFF_8079_LEN) {
5608 offset -= ETH_MODULE_SFF_8079_LEN;
5609 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5610 }
5611 } else {
5612 while (offset >= ETH_MODULE_SFF_8436_LEN) {
5613 /* Compute memory page number and offset. */
5614 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5615 addr++;
5616 }
5617 }
5618
5619 status = i40e_aq_get_phy_register(hw,
5620 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5621 addr, true, offset, &value, NULL);
5622 if (status)
5623 return -EIO;
5624 data[i] = value;
5625 }
5626 return 0;
5627 }
5628
i40e_get_eee(struct net_device * netdev,struct ethtool_eee * edata)5629 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5630 {
5631 struct i40e_netdev_priv *np = netdev_priv(netdev);
5632 struct i40e_aq_get_phy_abilities_resp phy_cfg;
5633 struct i40e_vsi *vsi = np->vsi;
5634 struct i40e_pf *pf = vsi->back;
5635 struct i40e_hw *hw = &pf->hw;
5636 int status = 0;
5637
5638 /* Get initial PHY capabilities */
5639 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5640 if (status)
5641 return -EAGAIN;
5642
5643 /* Check whether NIC configuration is compatible with Energy Efficient
5644 * Ethernet (EEE) mode.
5645 */
5646 if (phy_cfg.eee_capability == 0)
5647 return -EOPNOTSUPP;
5648
5649 edata->supported = SUPPORTED_Autoneg;
5650 edata->lp_advertised = edata->supported;
5651
5652 /* Get current configuration */
5653 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5654 if (status)
5655 return -EAGAIN;
5656
5657 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U;
5658 edata->eee_enabled = !!edata->advertised;
5659 edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5660
5661 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5662
5663 return 0;
5664 }
5665
i40e_is_eee_param_supported(struct net_device * netdev,struct ethtool_eee * edata)5666 static int i40e_is_eee_param_supported(struct net_device *netdev,
5667 struct ethtool_eee *edata)
5668 {
5669 struct i40e_netdev_priv *np = netdev_priv(netdev);
5670 struct i40e_vsi *vsi = np->vsi;
5671 struct i40e_pf *pf = vsi->back;
5672 struct i40e_ethtool_not_used {
5673 u32 value;
5674 const char *name;
5675 } param[] = {
5676 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"},
5677 {edata->tx_lpi_timer, "tx-timer"},
5678 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5679 };
5680 int i;
5681
5682 for (i = 0; i < ARRAY_SIZE(param); i++) {
5683 if (param[i].value) {
5684 netdev_info(netdev,
5685 "EEE setting %s not supported\n",
5686 param[i].name);
5687 return -EOPNOTSUPP;
5688 }
5689 }
5690
5691 return 0;
5692 }
5693
i40e_set_eee(struct net_device * netdev,struct ethtool_eee * edata)5694 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5695 {
5696 struct i40e_netdev_priv *np = netdev_priv(netdev);
5697 struct i40e_aq_get_phy_abilities_resp abilities;
5698 struct i40e_aq_set_phy_config config;
5699 struct i40e_vsi *vsi = np->vsi;
5700 struct i40e_pf *pf = vsi->back;
5701 struct i40e_hw *hw = &pf->hw;
5702 __le16 eee_capability;
5703 int status = 0;
5704
5705 /* Deny parameters we don't support */
5706 if (i40e_is_eee_param_supported(netdev, edata))
5707 return -EOPNOTSUPP;
5708
5709 /* Get initial PHY capabilities */
5710 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5711 NULL);
5712 if (status)
5713 return -EAGAIN;
5714
5715 /* Check whether NIC configuration is compatible with Energy Efficient
5716 * Ethernet (EEE) mode.
5717 */
5718 if (abilities.eee_capability == 0)
5719 return -EOPNOTSUPP;
5720
5721 /* Cache initial EEE capability */
5722 eee_capability = abilities.eee_capability;
5723
5724 /* Get current PHY configuration */
5725 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5726 NULL);
5727 if (status)
5728 return -EAGAIN;
5729
5730 /* Cache current PHY configuration */
5731 config.phy_type = abilities.phy_type;
5732 config.phy_type_ext = abilities.phy_type_ext;
5733 config.link_speed = abilities.link_speed;
5734 config.abilities = abilities.abilities |
5735 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5736 config.eeer = abilities.eeer_val;
5737 config.low_power_ctrl = abilities.d3_lpan;
5738 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5739 I40E_AQ_PHY_FEC_CONFIG_MASK;
5740
5741 /* Set desired EEE state */
5742 if (edata->eee_enabled) {
5743 config.eee_capability = eee_capability;
5744 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5745 } else {
5746 config.eee_capability = 0;
5747 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5748 }
5749
5750 /* Apply modified PHY configuration */
5751 status = i40e_aq_set_phy_config(hw, &config, NULL);
5752 if (status)
5753 return -EAGAIN;
5754
5755 return 0;
5756 }
5757
5758 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5759 .get_drvinfo = i40e_get_drvinfo,
5760 .set_eeprom = i40e_set_eeprom,
5761 .get_eeprom_len = i40e_get_eeprom_len,
5762 .get_eeprom = i40e_get_eeprom,
5763 };
5764
5765 static const struct ethtool_ops i40e_ethtool_ops = {
5766 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5767 ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
5768 ETHTOOL_COALESCE_USE_ADAPTIVE |
5769 ETHTOOL_COALESCE_RX_USECS_HIGH |
5770 ETHTOOL_COALESCE_TX_USECS_HIGH,
5771 .get_drvinfo = i40e_get_drvinfo,
5772 .get_regs_len = i40e_get_regs_len,
5773 .get_regs = i40e_get_regs,
5774 .nway_reset = i40e_nway_reset,
5775 .get_link = ethtool_op_get_link,
5776 .get_wol = i40e_get_wol,
5777 .set_wol = i40e_set_wol,
5778 .set_eeprom = i40e_set_eeprom,
5779 .get_eeprom_len = i40e_get_eeprom_len,
5780 .get_eeprom = i40e_get_eeprom,
5781 .get_ringparam = i40e_get_ringparam,
5782 .set_ringparam = i40e_set_ringparam,
5783 .get_pauseparam = i40e_get_pauseparam,
5784 .set_pauseparam = i40e_set_pauseparam,
5785 .get_msglevel = i40e_get_msglevel,
5786 .set_msglevel = i40e_set_msglevel,
5787 .get_rxnfc = i40e_get_rxnfc,
5788 .set_rxnfc = i40e_set_rxnfc,
5789 .self_test = i40e_diag_test,
5790 .get_strings = i40e_get_strings,
5791 .get_eee = i40e_get_eee,
5792 .set_eee = i40e_set_eee,
5793 .set_phys_id = i40e_set_phys_id,
5794 .get_sset_count = i40e_get_sset_count,
5795 .get_ethtool_stats = i40e_get_ethtool_stats,
5796 .get_coalesce = i40e_get_coalesce,
5797 .set_coalesce = i40e_set_coalesce,
5798 .get_rxfh_key_size = i40e_get_rxfh_key_size,
5799 .get_rxfh_indir_size = i40e_get_rxfh_indir_size,
5800 .get_rxfh = i40e_get_rxfh,
5801 .set_rxfh = i40e_set_rxfh,
5802 .get_channels = i40e_get_channels,
5803 .set_channels = i40e_set_channels,
5804 .get_module_info = i40e_get_module_info,
5805 .get_module_eeprom = i40e_get_module_eeprom,
5806 .get_ts_info = i40e_get_ts_info,
5807 .get_priv_flags = i40e_get_priv_flags,
5808 .set_priv_flags = i40e_set_priv_flags,
5809 .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5810 .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5811 .get_link_ksettings = i40e_get_link_ksettings,
5812 .set_link_ksettings = i40e_set_link_ksettings,
5813 .get_fecparam = i40e_get_fec_param,
5814 .set_fecparam = i40e_set_fec_param,
5815 .flash_device = i40e_ddp_flash,
5816 };
5817
i40e_set_ethtool_ops(struct net_device * netdev)5818 void i40e_set_ethtool_ops(struct net_device *netdev)
5819 {
5820 struct i40e_netdev_priv *np = netdev_priv(netdev);
5821 struct i40e_pf *pf = np->vsi->back;
5822
5823 if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5824 netdev->ethtool_ops = &i40e_ethtool_ops;
5825 else
5826 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5827 }
5828