1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
4 /* ethtool support for i40e */
8 #include "i40e_txrx_common.h"
10 /* ethtool statistics helpers */
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
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
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.
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.
35 char stat_string[ETH_GSTRING_LEN];
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.
44 #define I40E_STAT(_type, _name, _stat) { \
45 .stat_string = _name, \
46 .sizeof_stat = sizeof_field(_type, _stat), \
47 .stat_offset = offsetof(_type, _stat) \
50 /* Helper macro for defining some statistics directly copied from the netdev
53 #define I40E_NETDEV_STAT(_net_stat) \
54 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
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)
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),
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
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.
77 i40e_add_one_ethtool_stat(u64 *data, void *pointer,
78 const struct i40e_stats *stat)
83 /* ensure that the ethtool data buffer is zero'd for any stats
84 * which don't have a valid pointer.
90 p = (char *)pointer + stat->stat_offset;
91 switch (stat->sizeof_stat) {
105 WARN_ONCE(1, "unexpected stat size for %s",
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
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
125 __i40e_add_ethtool_stats(u64 **data, void *pointer,
126 const struct i40e_stats stats[],
127 const unsigned int size)
131 for (i = 0; i < size; i++)
132 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
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
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.
145 * The parameter @stats is evaluated twice, so parameters with side effects
148 #define i40e_add_ethtool_stats(data, pointer, stats) \
149 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
152 * i40e_add_queue_stats - copy queue statistics into supplied buffer
153 * @data: ethtool stats buffer
154 * @ring: the ring to copy
156 * Queue statistics must be copied while protected by
157 * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats.
158 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
159 * ring pointer is null, zero out the queue stat values and update the data
160 * pointer. Otherwise safely copy the stats from the ring into the supplied
161 * buffer and update the data pointer when finished.
163 * This function expects to be called while under rcu_read_lock().
166 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
168 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
169 const struct i40e_stats *stats = i40e_gstrings_queue_stats;
173 /* To avoid invalid statistics values, ensure that we keep retrying
174 * the copy until we get a consistent value according to
175 * u64_stats_fetch_retry_irq. But first, make sure our ring is
176 * non-null before attempting to access its syncp.
179 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp);
180 for (i = 0; i < size; i++) {
181 i40e_add_one_ethtool_stat(&(*data)[i], ring,
184 } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start));
186 /* Once we successfully copy the stats in, update the data pointer */
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
196 * Format and copy the strings described by stats into the buffer pointed at
199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
200 const unsigned int size, ...)
204 for (i = 0; i < size; i++) {
207 va_start(args, size);
208 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
209 *p += ETH_GSTRING_LEN;
215 * i40e_add_stat_strings - copy stat strings into ethtool buffer
216 * @p: ethtool supplied buffer
217 * @stats: stat definitions array
219 * Format and copy the strings described by the const static stats value into
220 * the buffer pointed at by p.
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.
226 #define i40e_add_stat_strings(p, stats, ...) \
227 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
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 #define I40E_QUEUE_STAT(_name, _stat) \
240 I40E_STAT(struct i40e_ring, _name, _stat)
242 static const struct i40e_stats i40e_gstrings_net_stats[] = {
243 I40E_NETDEV_STAT(rx_packets),
244 I40E_NETDEV_STAT(tx_packets),
245 I40E_NETDEV_STAT(rx_bytes),
246 I40E_NETDEV_STAT(tx_bytes),
247 I40E_NETDEV_STAT(rx_errors),
248 I40E_NETDEV_STAT(tx_errors),
249 I40E_NETDEV_STAT(rx_dropped),
250 I40E_NETDEV_STAT(tx_dropped),
251 I40E_NETDEV_STAT(collisions),
252 I40E_NETDEV_STAT(rx_length_errors),
253 I40E_NETDEV_STAT(rx_crc_errors),
256 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
257 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
258 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
259 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
260 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
261 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
262 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
263 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
264 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
265 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
266 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
267 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
268 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
271 struct i40e_cp_veb_tc_stats {
278 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
279 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets),
280 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes),
281 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets),
282 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes),
285 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
286 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
287 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
288 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
289 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
290 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
291 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
292 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
293 I40E_VSI_STAT("tx_linearize", tx_linearize),
294 I40E_VSI_STAT("tx_force_wb", tx_force_wb),
295 I40E_VSI_STAT("tx_busy", tx_busy),
296 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
297 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
300 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
301 * but they are separate. This device supports Virtualization, and
302 * as such might have several netdevs supporting VMDq and FCoE going
303 * through a single port. The NETDEV_STATs are for individual netdevs
304 * seen at the top of the stack, and the PF_STATs are for the physical
305 * function at the bottom of the stack hosting those netdevs.
307 * The PF_STATs are appended to the netdev stats only when ethtool -S
308 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
310 static const struct i40e_stats i40e_gstrings_stats[] = {
311 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
312 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
313 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
314 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
315 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
316 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
317 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
318 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
319 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
320 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
321 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
322 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
323 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
324 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
325 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
326 I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
327 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
328 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
329 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
330 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
331 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
332 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
333 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
334 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
335 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
336 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
337 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
338 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
339 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
340 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
341 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
342 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
343 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
344 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
345 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
346 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
347 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
348 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
349 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
350 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
351 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
352 I40E_PF_STAT("port.arq_overflows", arq_overflows),
353 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
354 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
355 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
356 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
357 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
358 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
359 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
360 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
361 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
364 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
365 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
366 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
367 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
370 struct i40e_pfc_stats {
372 u64 priority_xoff_rx;
374 u64 priority_xoff_tx;
375 u64 priority_xon_2_xoff;
378 static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
379 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
380 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
381 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
382 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
383 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
386 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats)
388 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats)
390 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
392 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
393 I40E_MAX_USER_PRIORITY)
395 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
396 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
397 I40E_MAX_TRAFFIC_CLASS))
399 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats)
401 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \
402 I40E_PFC_STATS_LEN + \
403 I40E_VEB_STATS_LEN + \
406 /* Length of stats for a single queue */
407 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats)
409 enum i40e_ethtool_test_id {
410 I40E_ETH_TEST_REG = 0,
411 I40E_ETH_TEST_EEPROM,
416 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
417 "Register test (offline)",
418 "Eeprom test (offline)",
419 "Interrupt test (offline)",
420 "Link test (on/offline)"
423 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
425 struct i40e_priv_flags {
426 char flag_string[ETH_GSTRING_LEN];
431 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
432 .flag_string = _name, \
434 .read_only = _read_only, \
437 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
438 /* NOTE: MFP setting cannot be changed */
439 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
440 I40E_PRIV_FLAG("total-port-shutdown",
441 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1),
442 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
443 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
444 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
445 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
446 I40E_PRIV_FLAG("link-down-on-close",
447 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
448 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
449 I40E_PRIV_FLAG("disable-source-pruning",
450 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
451 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
452 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
453 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
456 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
458 /* Private flags with a global effect, restricted to PF 0 */
459 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
460 I40E_PRIV_FLAG("vf-true-promisc-support",
461 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
464 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
467 * i40e_partition_setting_complaint - generic complaint for MFP restriction
470 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
472 dev_info(&pf->pdev->dev,
473 "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");
477 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
478 * @pf: PF struct with phy_types
479 * @ks: ethtool link ksettings struct to fill out
482 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
483 struct ethtool_link_ksettings *ks)
485 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
486 u64 phy_types = pf->hw.phy.phy_types;
488 ethtool_link_ksettings_zero_link_mode(ks, supported);
489 ethtool_link_ksettings_zero_link_mode(ks, advertising);
491 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
492 ethtool_link_ksettings_add_link_mode(ks, supported,
494 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
495 ethtool_link_ksettings_add_link_mode(ks, advertising,
497 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
498 ethtool_link_ksettings_add_link_mode(ks, supported,
500 ethtool_link_ksettings_add_link_mode(ks, advertising,
504 if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
505 phy_types & I40E_CAP_PHY_TYPE_XFI ||
506 phy_types & I40E_CAP_PHY_TYPE_SFI ||
507 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
508 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
509 ethtool_link_ksettings_add_link_mode(ks, supported,
511 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
512 ethtool_link_ksettings_add_link_mode(ks, advertising,
515 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
516 ethtool_link_ksettings_add_link_mode(ks, supported,
518 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
519 ethtool_link_ksettings_add_link_mode(ks, advertising,
522 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
523 ethtool_link_ksettings_add_link_mode(ks, supported,
525 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
526 ethtool_link_ksettings_add_link_mode(ks, advertising,
529 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
530 ethtool_link_ksettings_add_link_mode(ks, supported,
532 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
533 ethtool_link_ksettings_add_link_mode(ks, advertising,
536 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
537 phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
538 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
539 ethtool_link_ksettings_add_link_mode(ks, supported,
541 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
542 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
543 ethtool_link_ksettings_add_link_mode(ks, supported,
545 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
546 ethtool_link_ksettings_add_link_mode(ks, advertising,
549 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
550 ethtool_link_ksettings_add_link_mode(ks, supported,
552 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
553 ethtool_link_ksettings_add_link_mode(ks, advertising,
556 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
557 ethtool_link_ksettings_add_link_mode(ks, supported,
559 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
560 ethtool_link_ksettings_add_link_mode(ks, advertising,
563 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
564 ethtool_link_ksettings_add_link_mode(ks, supported,
566 ethtool_link_ksettings_add_link_mode(ks, advertising,
569 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
570 ethtool_link_ksettings_add_link_mode(ks, supported,
572 ethtool_link_ksettings_add_link_mode(ks, advertising,
575 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
576 ethtool_link_ksettings_add_link_mode(ks, supported,
578 ethtool_link_ksettings_add_link_mode(ks, advertising,
581 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
582 ethtool_link_ksettings_add_link_mode(ks, supported,
584 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
585 ethtool_link_ksettings_add_link_mode(ks, advertising,
588 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
589 ethtool_link_ksettings_add_link_mode(ks, supported,
591 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
592 ethtool_link_ksettings_add_link_mode(ks, advertising,
595 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
596 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
597 ethtool_link_ksettings_add_link_mode(ks, supported,
599 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
600 ethtool_link_ksettings_add_link_mode(ks, advertising,
603 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
604 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
605 ethtool_link_ksettings_add_link_mode(ks, supported,
607 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
608 ethtool_link_ksettings_add_link_mode(ks, advertising,
611 /* need to add 25G PHY types */
612 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
613 ethtool_link_ksettings_add_link_mode(ks, supported,
615 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
616 ethtool_link_ksettings_add_link_mode(ks, advertising,
619 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
620 ethtool_link_ksettings_add_link_mode(ks, supported,
622 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
623 ethtool_link_ksettings_add_link_mode(ks, advertising,
626 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
627 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
628 ethtool_link_ksettings_add_link_mode(ks, supported,
630 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
631 ethtool_link_ksettings_add_link_mode(ks, advertising,
634 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
636 ethtool_link_ksettings_add_link_mode(ks, supported,
638 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
639 ethtool_link_ksettings_add_link_mode(ks, advertising,
642 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
643 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
644 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
645 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
646 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
647 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
648 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
649 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
650 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
651 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
652 ethtool_link_ksettings_add_link_mode(ks, advertising,
654 ethtool_link_ksettings_add_link_mode(ks, advertising,
656 ethtool_link_ksettings_add_link_mode(ks, advertising,
660 /* need to add new 10G PHY types */
661 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
662 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
663 ethtool_link_ksettings_add_link_mode(ks, supported,
665 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
666 ethtool_link_ksettings_add_link_mode(ks, advertising,
669 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
670 ethtool_link_ksettings_add_link_mode(ks, supported,
672 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
673 ethtool_link_ksettings_add_link_mode(ks, advertising,
676 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
677 ethtool_link_ksettings_add_link_mode(ks, supported,
679 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
680 ethtool_link_ksettings_add_link_mode(ks, advertising,
683 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
684 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
685 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
686 ethtool_link_ksettings_add_link_mode(ks, supported,
688 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
689 ethtool_link_ksettings_add_link_mode(ks, advertising,
692 /* Autoneg PHY types */
693 if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
694 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
695 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
696 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
697 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
698 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
699 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
700 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
701 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
702 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
703 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
704 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
705 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
706 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
707 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
708 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
709 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
710 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
711 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
712 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
713 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
714 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
715 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
716 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
717 ethtool_link_ksettings_add_link_mode(ks, supported,
719 ethtool_link_ksettings_add_link_mode(ks, advertising,
725 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
726 * @req_fec_info: mask request FEC info
727 * @ks: ethtool ksettings to fill in
729 static void i40e_get_settings_link_up_fec(u8 req_fec_info,
730 struct ethtool_link_ksettings *ks)
732 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
733 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
734 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
736 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
737 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
738 ethtool_link_ksettings_add_link_mode(ks, advertising,
740 ethtool_link_ksettings_add_link_mode(ks, advertising,
742 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
743 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
744 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
745 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
746 ethtool_link_ksettings_add_link_mode(ks, advertising,
749 ethtool_link_ksettings_add_link_mode(ks, advertising,
755 * i40e_get_settings_link_up - Get the Link settings for when link is up
757 * @ks: ethtool ksettings to fill in
758 * @netdev: network interface device structure
759 * @pf: pointer to physical function struct
761 static void i40e_get_settings_link_up(struct i40e_hw *hw,
762 struct ethtool_link_ksettings *ks,
763 struct net_device *netdev,
766 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
767 struct ethtool_link_ksettings cap_ksettings;
768 u32 link_speed = hw_link_info->link_speed;
770 /* Initialize supported and advertised settings based on phy settings */
771 switch (hw_link_info->phy_type) {
772 case I40E_PHY_TYPE_40GBASE_CR4:
773 case I40E_PHY_TYPE_40GBASE_CR4_CU:
774 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
775 ethtool_link_ksettings_add_link_mode(ks, supported,
777 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
778 ethtool_link_ksettings_add_link_mode(ks, advertising,
781 case I40E_PHY_TYPE_XLAUI:
782 case I40E_PHY_TYPE_XLPPI:
783 case I40E_PHY_TYPE_40GBASE_AOC:
784 ethtool_link_ksettings_add_link_mode(ks, supported,
786 ethtool_link_ksettings_add_link_mode(ks, advertising,
789 case I40E_PHY_TYPE_40GBASE_SR4:
790 ethtool_link_ksettings_add_link_mode(ks, supported,
792 ethtool_link_ksettings_add_link_mode(ks, advertising,
795 case I40E_PHY_TYPE_40GBASE_LR4:
796 ethtool_link_ksettings_add_link_mode(ks, supported,
798 ethtool_link_ksettings_add_link_mode(ks, advertising,
801 case I40E_PHY_TYPE_25GBASE_SR:
802 case I40E_PHY_TYPE_25GBASE_LR:
803 case I40E_PHY_TYPE_10GBASE_SR:
804 case I40E_PHY_TYPE_10GBASE_LR:
805 case I40E_PHY_TYPE_1000BASE_SX:
806 case I40E_PHY_TYPE_1000BASE_LX:
807 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
808 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
809 ethtool_link_ksettings_add_link_mode(ks, supported,
811 ethtool_link_ksettings_add_link_mode(ks, advertising,
813 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
814 ethtool_link_ksettings_add_link_mode(ks, supported,
816 ethtool_link_ksettings_add_link_mode(ks, advertising,
818 ethtool_link_ksettings_add_link_mode(ks, supported,
820 ethtool_link_ksettings_add_link_mode(ks, advertising,
822 ethtool_link_ksettings_add_link_mode(ks, supported,
824 ethtool_link_ksettings_add_link_mode(ks, advertising,
826 ethtool_link_ksettings_add_link_mode(ks, supported,
828 if (hw_link_info->module_type[2] &
829 I40E_MODULE_TYPE_1000BASE_SX ||
830 hw_link_info->module_type[2] &
831 I40E_MODULE_TYPE_1000BASE_LX) {
832 ethtool_link_ksettings_add_link_mode(ks, supported,
834 if (hw_link_info->requested_speeds &
836 ethtool_link_ksettings_add_link_mode(
837 ks, advertising, 1000baseT_Full);
839 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
840 ethtool_link_ksettings_add_link_mode(ks, advertising,
843 case I40E_PHY_TYPE_10GBASE_T:
844 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS:
845 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS:
846 case I40E_PHY_TYPE_1000BASE_T:
847 case I40E_PHY_TYPE_100BASE_TX:
848 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
849 ethtool_link_ksettings_add_link_mode(ks, supported,
851 ethtool_link_ksettings_add_link_mode(ks, supported,
853 ethtool_link_ksettings_add_link_mode(ks, supported,
855 ethtool_link_ksettings_add_link_mode(ks, supported,
857 ethtool_link_ksettings_add_link_mode(ks, supported,
859 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
860 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
861 ethtool_link_ksettings_add_link_mode(ks, advertising,
863 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
864 ethtool_link_ksettings_add_link_mode(ks, advertising,
866 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
867 ethtool_link_ksettings_add_link_mode(ks, advertising,
869 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
870 ethtool_link_ksettings_add_link_mode(ks, advertising,
872 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
873 ethtool_link_ksettings_add_link_mode(ks, advertising,
876 case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
877 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
878 ethtool_link_ksettings_add_link_mode(ks, supported,
880 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
881 ethtool_link_ksettings_add_link_mode(ks, advertising,
884 case I40E_PHY_TYPE_10GBASE_CR1_CU:
885 case I40E_PHY_TYPE_10GBASE_CR1:
886 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
887 ethtool_link_ksettings_add_link_mode(ks, supported,
889 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
890 ethtool_link_ksettings_add_link_mode(ks, advertising,
893 case I40E_PHY_TYPE_XAUI:
894 case I40E_PHY_TYPE_XFI:
895 case I40E_PHY_TYPE_SFI:
896 case I40E_PHY_TYPE_10GBASE_SFPP_CU:
897 case I40E_PHY_TYPE_10GBASE_AOC:
898 ethtool_link_ksettings_add_link_mode(ks, supported,
900 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
901 ethtool_link_ksettings_add_link_mode(ks, advertising,
903 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
905 case I40E_PHY_TYPE_SGMII:
906 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
907 ethtool_link_ksettings_add_link_mode(ks, supported,
909 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
910 ethtool_link_ksettings_add_link_mode(ks, advertising,
912 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
913 ethtool_link_ksettings_add_link_mode(ks, supported,
915 if (hw_link_info->requested_speeds &
916 I40E_LINK_SPEED_100MB)
917 ethtool_link_ksettings_add_link_mode(
918 ks, advertising, 100baseT_Full);
921 case I40E_PHY_TYPE_40GBASE_KR4:
922 case I40E_PHY_TYPE_25GBASE_KR:
923 case I40E_PHY_TYPE_20GBASE_KR2:
924 case I40E_PHY_TYPE_10GBASE_KR:
925 case I40E_PHY_TYPE_10GBASE_KX4:
926 case I40E_PHY_TYPE_1000BASE_KX:
927 ethtool_link_ksettings_add_link_mode(ks, supported,
929 ethtool_link_ksettings_add_link_mode(ks, supported,
931 ethtool_link_ksettings_add_link_mode(ks, supported,
933 ethtool_link_ksettings_add_link_mode(ks, supported,
935 ethtool_link_ksettings_add_link_mode(ks, supported,
937 ethtool_link_ksettings_add_link_mode(ks, supported,
939 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
940 ethtool_link_ksettings_add_link_mode(ks, advertising,
942 ethtool_link_ksettings_add_link_mode(ks, advertising,
944 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
945 ethtool_link_ksettings_add_link_mode(ks, advertising,
947 ethtool_link_ksettings_add_link_mode(ks, advertising,
949 ethtool_link_ksettings_add_link_mode(ks, advertising,
951 ethtool_link_ksettings_add_link_mode(ks, advertising,
953 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
955 case I40E_PHY_TYPE_25GBASE_CR:
956 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
957 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
958 ethtool_link_ksettings_add_link_mode(ks, supported,
960 ethtool_link_ksettings_add_link_mode(ks, advertising,
962 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
965 case I40E_PHY_TYPE_25GBASE_AOC:
966 case I40E_PHY_TYPE_25GBASE_ACC:
967 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
968 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
969 ethtool_link_ksettings_add_link_mode(ks, supported,
971 ethtool_link_ksettings_add_link_mode(ks, advertising,
973 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
975 ethtool_link_ksettings_add_link_mode(ks, supported,
977 ethtool_link_ksettings_add_link_mode(ks, advertising,
981 /* if we got here and link is up something bad is afoot */
983 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n",
984 hw_link_info->phy_type);
987 /* Now that we've worked out everything that could be supported by the
988 * current PHY type, get what is supported by the NVM and intersect
989 * them to get what is truly supported
991 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
992 i40e_phy_type_to_ethtool(pf, &cap_ksettings);
993 ethtool_intersect_link_masks(ks, &cap_ksettings);
995 /* Set speed and duplex */
996 switch (link_speed) {
997 case I40E_LINK_SPEED_40GB:
998 ks->base.speed = SPEED_40000;
1000 case I40E_LINK_SPEED_25GB:
1001 ks->base.speed = SPEED_25000;
1003 case I40E_LINK_SPEED_20GB:
1004 ks->base.speed = SPEED_20000;
1006 case I40E_LINK_SPEED_10GB:
1007 ks->base.speed = SPEED_10000;
1009 case I40E_LINK_SPEED_5GB:
1010 ks->base.speed = SPEED_5000;
1012 case I40E_LINK_SPEED_2_5GB:
1013 ks->base.speed = SPEED_2500;
1015 case I40E_LINK_SPEED_1GB:
1016 ks->base.speed = SPEED_1000;
1018 case I40E_LINK_SPEED_100MB:
1019 ks->base.speed = SPEED_100;
1022 ks->base.speed = SPEED_UNKNOWN;
1025 ks->base.duplex = DUPLEX_FULL;
1029 * i40e_get_settings_link_down - Get the Link settings for when link is down
1031 * @ks: ethtool ksettings to fill in
1032 * @pf: pointer to physical function struct
1034 * Reports link settings that can be determined when link is down
1036 static void i40e_get_settings_link_down(struct i40e_hw *hw,
1037 struct ethtool_link_ksettings *ks,
1040 /* link is down and the driver needs to fall back on
1041 * supported phy types to figure out what info to display
1043 i40e_phy_type_to_ethtool(pf, ks);
1045 /* With no link speed and duplex are unknown */
1046 ks->base.speed = SPEED_UNKNOWN;
1047 ks->base.duplex = DUPLEX_UNKNOWN;
1051 * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1052 * @netdev: network interface device structure
1053 * @ks: ethtool ksettings
1055 * Reports speed/duplex settings based on media_type
1057 static int i40e_get_link_ksettings(struct net_device *netdev,
1058 struct ethtool_link_ksettings *ks)
1060 struct i40e_netdev_priv *np = netdev_priv(netdev);
1061 struct i40e_pf *pf = np->vsi->back;
1062 struct i40e_hw *hw = &pf->hw;
1063 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1064 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1066 ethtool_link_ksettings_zero_link_mode(ks, supported);
1067 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1070 i40e_get_settings_link_up(hw, ks, netdev, pf);
1072 i40e_get_settings_link_down(hw, ks, pf);
1074 /* Now set the settings that don't rely on link being up/down */
1075 /* Set autoneg settings */
1076 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1077 AUTONEG_ENABLE : AUTONEG_DISABLE);
1079 /* Set media type settings */
1080 switch (hw->phy.media_type) {
1081 case I40E_MEDIA_TYPE_BACKPLANE:
1082 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1083 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1084 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1085 ethtool_link_ksettings_add_link_mode(ks, advertising,
1087 ks->base.port = PORT_NONE;
1089 case I40E_MEDIA_TYPE_BASET:
1090 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1091 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1092 ks->base.port = PORT_TP;
1094 case I40E_MEDIA_TYPE_DA:
1095 case I40E_MEDIA_TYPE_CX4:
1096 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1097 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1098 ks->base.port = PORT_DA;
1100 case I40E_MEDIA_TYPE_FIBER:
1101 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1102 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1103 ks->base.port = PORT_FIBRE;
1105 case I40E_MEDIA_TYPE_UNKNOWN:
1107 ks->base.port = PORT_OTHER;
1111 /* Set flow control settings */
1112 ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1113 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause);
1115 switch (hw->fc.requested_mode) {
1117 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1119 case I40E_FC_TX_PAUSE:
1120 ethtool_link_ksettings_add_link_mode(ks, advertising,
1123 case I40E_FC_RX_PAUSE:
1124 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1125 ethtool_link_ksettings_add_link_mode(ks, advertising,
1129 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1130 ethtool_link_ksettings_del_link_mode(ks, advertising,
1139 * i40e_set_link_ksettings - Set Speed and Duplex
1140 * @netdev: network interface device structure
1141 * @ks: ethtool ksettings
1143 * Set speed/duplex per media_types advertised/forced
1145 static int i40e_set_link_ksettings(struct net_device *netdev,
1146 const struct ethtool_link_ksettings *ks)
1148 struct i40e_netdev_priv *np = netdev_priv(netdev);
1149 struct i40e_aq_get_phy_abilities_resp abilities;
1150 struct ethtool_link_ksettings safe_ks;
1151 struct ethtool_link_ksettings copy_ks;
1152 struct i40e_aq_set_phy_config config;
1153 struct i40e_pf *pf = np->vsi->back;
1154 struct i40e_vsi *vsi = np->vsi;
1155 struct i40e_hw *hw = &pf->hw;
1156 bool autoneg_changed = false;
1157 i40e_status status = 0;
1162 /* Changing port settings is not supported if this isn't the
1163 * port's controlling PF
1165 if (hw->partition_id != 1) {
1166 i40e_partition_setting_complaint(pf);
1169 if (vsi != pf->vsi[pf->lan_vsi])
1171 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1172 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1173 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1174 hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1175 hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1177 if (hw->device_id == I40E_DEV_ID_KX_B ||
1178 hw->device_id == I40E_DEV_ID_KX_C ||
1179 hw->device_id == I40E_DEV_ID_20G_KR2 ||
1180 hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1181 hw->device_id == I40E_DEV_ID_25G_B ||
1182 hw->device_id == I40E_DEV_ID_KX_X722) {
1183 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1187 /* copy the ksettings to copy_ks to avoid modifying the origin */
1188 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings));
1190 /* save autoneg out of ksettings */
1191 autoneg = copy_ks.base.autoneg;
1193 /* get our own copy of the bits to check against */
1194 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1195 safe_ks.base.cmd = copy_ks.base.cmd;
1196 safe_ks.base.link_mode_masks_nwords =
1197 copy_ks.base.link_mode_masks_nwords;
1198 i40e_get_link_ksettings(netdev, &safe_ks);
1200 /* Get link modes supported by hardware and check against modes
1201 * requested by the user. Return an error if unsupported mode was set.
1203 if (!bitmap_subset(copy_ks.link_modes.advertising,
1204 safe_ks.link_modes.supported,
1205 __ETHTOOL_LINK_MODE_MASK_NBITS))
1208 /* set autoneg back to what it currently is */
1209 copy_ks.base.autoneg = safe_ks.base.autoneg;
1211 /* If copy_ks.base and safe_ks.base are not the same now, then they are
1212 * trying to set something that we do not support.
1214 if (memcmp(©_ks.base, &safe_ks.base,
1215 sizeof(struct ethtool_link_settings)))
1218 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1222 usleep_range(1000, 2000);
1225 /* Get the current phy config */
1226 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1233 /* Copy abilities to config in case autoneg is not
1236 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1237 config.abilities = abilities.abilities;
1240 if (autoneg == AUTONEG_ENABLE) {
1241 /* If autoneg was not already enabled */
1242 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1243 /* If autoneg is not supported, return error */
1244 if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1247 netdev_info(netdev, "Autoneg not supported on this phy\n");
1251 /* Autoneg is allowed to change */
1252 config.abilities = abilities.abilities |
1253 I40E_AQ_PHY_ENABLE_AN;
1254 autoneg_changed = true;
1257 /* If autoneg is currently enabled */
1258 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1259 /* If autoneg is supported 10GBASE_T is the only PHY
1260 * that can disable it, so otherwise return error
1262 if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1265 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
1266 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1270 /* Autoneg is allowed to change */
1271 config.abilities = abilities.abilities &
1272 ~I40E_AQ_PHY_ENABLE_AN;
1273 autoneg_changed = true;
1277 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1279 config.link_speed |= I40E_LINK_SPEED_100MB;
1280 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1282 ethtool_link_ksettings_test_link_mode(ks, advertising,
1284 ethtool_link_ksettings_test_link_mode(ks, advertising,
1286 config.link_speed |= I40E_LINK_SPEED_1GB;
1287 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1289 ethtool_link_ksettings_test_link_mode(ks, advertising,
1290 10000baseKX4_Full) ||
1291 ethtool_link_ksettings_test_link_mode(ks, advertising,
1292 10000baseKR_Full) ||
1293 ethtool_link_ksettings_test_link_mode(ks, advertising,
1294 10000baseCR_Full) ||
1295 ethtool_link_ksettings_test_link_mode(ks, advertising,
1296 10000baseSR_Full) ||
1297 ethtool_link_ksettings_test_link_mode(ks, advertising,
1299 config.link_speed |= I40E_LINK_SPEED_10GB;
1300 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1302 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1303 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1305 config.link_speed |= I40E_LINK_SPEED_5GB;
1306 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1308 config.link_speed |= I40E_LINK_SPEED_20GB;
1309 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1310 25000baseCR_Full) ||
1311 ethtool_link_ksettings_test_link_mode(ks, advertising,
1312 25000baseKR_Full) ||
1313 ethtool_link_ksettings_test_link_mode(ks, advertising,
1315 config.link_speed |= I40E_LINK_SPEED_25GB;
1316 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1317 40000baseKR4_Full) ||
1318 ethtool_link_ksettings_test_link_mode(ks, advertising,
1319 40000baseCR4_Full) ||
1320 ethtool_link_ksettings_test_link_mode(ks, advertising,
1321 40000baseSR4_Full) ||
1322 ethtool_link_ksettings_test_link_mode(ks, advertising,
1324 config.link_speed |= I40E_LINK_SPEED_40GB;
1326 /* If speed didn't get set, set it to what it currently is.
1327 * This is needed because if advertise is 0 (as it is when autoneg
1328 * is disabled) then speed won't get set.
1330 if (!config.link_speed)
1331 config.link_speed = abilities.link_speed;
1332 if (autoneg_changed || abilities.link_speed != config.link_speed) {
1333 /* copy over the rest of the abilities */
1334 config.phy_type = abilities.phy_type;
1335 config.phy_type_ext = abilities.phy_type_ext;
1336 config.eee_capability = abilities.eee_capability;
1337 config.eeer = abilities.eeer_val;
1338 config.low_power_ctrl = abilities.d3_lpan;
1339 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1340 I40E_AQ_PHY_FEC_CONFIG_MASK;
1342 /* save the requested speeds */
1343 hw->phy.link_info.requested_speeds = config.link_speed;
1344 /* set link and auto negotiation so changes take effect */
1345 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1346 /* If link is up put link down */
1347 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1348 /* Tell the OS link is going down, the link will go
1349 * back up when fw says it is ready asynchronously
1351 i40e_print_link_message(vsi, false);
1352 netif_carrier_off(netdev);
1353 netif_tx_stop_all_queues(netdev);
1356 /* make the aq call */
1357 status = i40e_aq_set_phy_config(hw, &config, NULL);
1360 "Set phy config failed, err %s aq_err %s\n",
1361 i40e_stat_str(hw, status),
1362 i40e_aq_str(hw, hw->aq.asq_last_status));
1367 status = i40e_update_link_info(hw);
1370 "Updating link info failed with err %s aq_err %s\n",
1371 i40e_stat_str(hw, status),
1372 i40e_aq_str(hw, hw->aq.asq_last_status));
1375 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1379 clear_bit(__I40E_CONFIG_BUSY, pf->state);
1384 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1386 struct i40e_netdev_priv *np = netdev_priv(netdev);
1387 struct i40e_aq_get_phy_abilities_resp abilities;
1388 struct i40e_pf *pf = np->vsi->back;
1389 struct i40e_hw *hw = &pf->hw;
1390 i40e_status status = 0;
1394 flags = READ_ONCE(pf->flags);
1395 i40e_set_fec_in_flags(fec_cfg, &flags);
1397 /* Get the current phy config */
1398 memset(&abilities, 0, sizeof(abilities));
1399 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1406 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1407 struct i40e_aq_set_phy_config config;
1409 memset(&config, 0, sizeof(config));
1410 config.phy_type = abilities.phy_type;
1411 config.abilities = abilities.abilities |
1412 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1413 config.phy_type_ext = abilities.phy_type_ext;
1414 config.link_speed = abilities.link_speed;
1415 config.eee_capability = abilities.eee_capability;
1416 config.eeer = abilities.eeer_val;
1417 config.low_power_ctrl = abilities.d3_lpan;
1418 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1419 status = i40e_aq_set_phy_config(hw, &config, NULL);
1422 "Set phy config failed, err %s aq_err %s\n",
1423 i40e_stat_str(hw, status),
1424 i40e_aq_str(hw, hw->aq.asq_last_status));
1429 status = i40e_update_link_info(hw);
1431 /* debug level message only due to relation to the link
1432 * itself rather than to the FEC settings
1433 * (e.g. no physical connection etc.)
1436 "Updating link info failed with err %s aq_err %s\n",
1437 i40e_stat_str(hw, status),
1438 i40e_aq_str(hw, hw->aq.asq_last_status));
1445 static int i40e_get_fec_param(struct net_device *netdev,
1446 struct ethtool_fecparam *fecparam)
1448 struct i40e_netdev_priv *np = netdev_priv(netdev);
1449 struct i40e_aq_get_phy_abilities_resp abilities;
1450 struct i40e_pf *pf = np->vsi->back;
1451 struct i40e_hw *hw = &pf->hw;
1452 i40e_status status = 0;
1456 /* Get the current phy config */
1457 memset(&abilities, 0, sizeof(abilities));
1458 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1466 fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1467 if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1468 fecparam->fec |= ETHTOOL_FEC_AUTO;
1469 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1470 I40E_AQ_SET_FEC_ABILITY_RS))
1471 fecparam->fec |= ETHTOOL_FEC_RS;
1472 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1473 I40E_AQ_SET_FEC_ABILITY_KR))
1474 fecparam->fec |= ETHTOOL_FEC_BASER;
1476 fecparam->fec |= ETHTOOL_FEC_OFF;
1478 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1479 fecparam->active_fec = ETHTOOL_FEC_BASER;
1480 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1481 fecparam->active_fec = ETHTOOL_FEC_RS;
1483 fecparam->active_fec = ETHTOOL_FEC_OFF;
1488 static int i40e_set_fec_param(struct net_device *netdev,
1489 struct ethtool_fecparam *fecparam)
1491 struct i40e_netdev_priv *np = netdev_priv(netdev);
1492 struct i40e_pf *pf = np->vsi->back;
1493 struct i40e_hw *hw = &pf->hw;
1496 if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1497 hw->device_id != I40E_DEV_ID_25G_B &&
1498 hw->device_id != I40E_DEV_ID_KX_X722)
1501 if (hw->mac.type == I40E_MAC_X722 &&
1502 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) {
1503 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1507 switch (fecparam->fec) {
1508 case ETHTOOL_FEC_AUTO:
1509 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1511 case ETHTOOL_FEC_RS:
1512 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1513 I40E_AQ_SET_FEC_ABILITY_RS);
1515 case ETHTOOL_FEC_BASER:
1516 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1517 I40E_AQ_SET_FEC_ABILITY_KR);
1519 case ETHTOOL_FEC_OFF:
1520 case ETHTOOL_FEC_NONE:
1524 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1529 return i40e_set_fec_cfg(netdev, fec_cfg);
1532 static int i40e_nway_reset(struct net_device *netdev)
1534 /* restart autonegotiation */
1535 struct i40e_netdev_priv *np = netdev_priv(netdev);
1536 struct i40e_pf *pf = np->vsi->back;
1537 struct i40e_hw *hw = &pf->hw;
1538 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1539 i40e_status ret = 0;
1541 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1543 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1544 i40e_stat_str(hw, ret),
1545 i40e_aq_str(hw, hw->aq.asq_last_status));
1553 * i40e_get_pauseparam - Get Flow Control status
1554 * @netdev: netdevice structure
1555 * @pause: buffer to return pause parameters
1557 * Return tx/rx-pause status
1559 static void i40e_get_pauseparam(struct net_device *netdev,
1560 struct ethtool_pauseparam *pause)
1562 struct i40e_netdev_priv *np = netdev_priv(netdev);
1563 struct i40e_pf *pf = np->vsi->back;
1564 struct i40e_hw *hw = &pf->hw;
1565 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1566 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1569 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1570 AUTONEG_ENABLE : AUTONEG_DISABLE);
1572 /* PFC enabled so report LFC as off */
1573 if (dcbx_cfg->pfc.pfcenable) {
1574 pause->rx_pause = 0;
1575 pause->tx_pause = 0;
1579 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1580 pause->rx_pause = 1;
1581 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1582 pause->tx_pause = 1;
1583 } else if (hw->fc.current_mode == I40E_FC_FULL) {
1584 pause->rx_pause = 1;
1585 pause->tx_pause = 1;
1590 * i40e_set_pauseparam - Set Flow Control parameter
1591 * @netdev: network interface device structure
1592 * @pause: return tx/rx flow control status
1594 static int i40e_set_pauseparam(struct net_device *netdev,
1595 struct ethtool_pauseparam *pause)
1597 struct i40e_netdev_priv *np = netdev_priv(netdev);
1598 struct i40e_pf *pf = np->vsi->back;
1599 struct i40e_vsi *vsi = np->vsi;
1600 struct i40e_hw *hw = &pf->hw;
1601 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1602 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1603 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1609 /* Changing the port's flow control is not supported if this isn't the
1610 * port's controlling PF
1612 if (hw->partition_id != 1) {
1613 i40e_partition_setting_complaint(pf);
1617 if (vsi != pf->vsi[pf->lan_vsi])
1620 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1621 if (pause->autoneg != is_an) {
1622 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1626 /* If we have link and don't have autoneg */
1627 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1628 /* Send message that it might not necessarily work*/
1629 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1632 if (dcbx_cfg->pfc.pfcenable) {
1634 "Priority flow control enabled. Cannot set link flow control.\n");
1638 if (pause->rx_pause && pause->tx_pause)
1639 hw->fc.requested_mode = I40E_FC_FULL;
1640 else if (pause->rx_pause && !pause->tx_pause)
1641 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1642 else if (!pause->rx_pause && pause->tx_pause)
1643 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1644 else if (!pause->rx_pause && !pause->tx_pause)
1645 hw->fc.requested_mode = I40E_FC_NONE;
1649 /* Tell the OS link is going down, the link will go back up when fw
1650 * says it is ready asynchronously
1652 i40e_print_link_message(vsi, false);
1653 netif_carrier_off(netdev);
1654 netif_tx_stop_all_queues(netdev);
1656 /* Set the fc mode and only restart an if link is up*/
1657 status = i40e_set_fc(hw, &aq_failures, link_up);
1659 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1660 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1661 i40e_stat_str(hw, status),
1662 i40e_aq_str(hw, hw->aq.asq_last_status));
1665 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1666 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1667 i40e_stat_str(hw, status),
1668 i40e_aq_str(hw, hw->aq.asq_last_status));
1671 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1672 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1673 i40e_stat_str(hw, status),
1674 i40e_aq_str(hw, hw->aq.asq_last_status));
1678 if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1679 /* Give it a little more time to try to come back */
1681 if (!test_bit(__I40E_DOWN, pf->state))
1682 return i40e_nway_reset(netdev);
1688 static u32 i40e_get_msglevel(struct net_device *netdev)
1690 struct i40e_netdev_priv *np = netdev_priv(netdev);
1691 struct i40e_pf *pf = np->vsi->back;
1692 u32 debug_mask = pf->hw.debug_mask;
1695 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1697 return pf->msg_enable;
1700 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1702 struct i40e_netdev_priv *np = netdev_priv(netdev);
1703 struct i40e_pf *pf = np->vsi->back;
1705 if (I40E_DEBUG_USER & data)
1706 pf->hw.debug_mask = data;
1708 pf->msg_enable = data;
1711 static int i40e_get_regs_len(struct net_device *netdev)
1716 for (i = 0; i40e_reg_list[i].offset != 0; i++)
1717 reg_count += i40e_reg_list[i].elements;
1719 return reg_count * sizeof(u32);
1722 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1725 struct i40e_netdev_priv *np = netdev_priv(netdev);
1726 struct i40e_pf *pf = np->vsi->back;
1727 struct i40e_hw *hw = &pf->hw;
1729 unsigned int i, j, ri;
1732 /* Tell ethtool which driver-version-specific regs output we have.
1734 * At some point, if we have ethtool doing special formatting of
1735 * this data, it will rely on this version number to know how to
1736 * interpret things. Hence, this needs to be updated if/when the
1737 * diags register table is changed.
1741 /* loop through the diags reg table for what to print */
1743 for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1744 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1745 reg = i40e_reg_list[i].offset
1746 + (j * i40e_reg_list[i].stride);
1747 reg_buf[ri++] = rd32(hw, reg);
1753 static int i40e_get_eeprom(struct net_device *netdev,
1754 struct ethtool_eeprom *eeprom, u8 *bytes)
1756 struct i40e_netdev_priv *np = netdev_priv(netdev);
1757 struct i40e_hw *hw = &np->vsi->back->hw;
1758 struct i40e_pf *pf = np->vsi->back;
1759 int ret_val = 0, len, offset;
1765 #define I40E_NVM_SECTOR_SIZE 4096
1766 if (eeprom->len == 0)
1769 /* check for NVMUpdate access method */
1770 magic = hw->vendor_id | (hw->device_id << 16);
1771 if (eeprom->magic && eeprom->magic != magic) {
1772 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1775 /* make sure it is the right magic for NVMUpdate */
1776 if ((eeprom->magic >> 16) != hw->device_id)
1778 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1779 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1782 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1784 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1785 dev_info(&pf->pdev->dev,
1786 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1787 ret_val, hw->aq.asq_last_status, errno,
1788 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1789 cmd->offset, cmd->data_size);
1794 /* normal ethtool get_eeprom support */
1795 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1797 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1801 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1803 dev_info(&pf->pdev->dev,
1804 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1805 ret_val, hw->aq.asq_last_status);
1809 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1810 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1811 len = I40E_NVM_SECTOR_SIZE;
1813 for (i = 0; i < sectors; i++) {
1814 if (i == (sectors - 1)) {
1815 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1818 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1819 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1820 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1822 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1823 dev_info(&pf->pdev->dev,
1824 "read NVM failed, invalid offset 0x%x\n",
1827 } else if (ret_val &&
1828 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1829 dev_info(&pf->pdev->dev,
1830 "read NVM failed, access, offset 0x%x\n",
1833 } else if (ret_val) {
1834 dev_info(&pf->pdev->dev,
1835 "read NVM failed offset %d err=%d status=0x%x\n",
1836 offset, ret_val, hw->aq.asq_last_status);
1841 i40e_release_nvm(hw);
1842 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1848 static int i40e_get_eeprom_len(struct net_device *netdev)
1850 struct i40e_netdev_priv *np = netdev_priv(netdev);
1851 struct i40e_hw *hw = &np->vsi->back->hw;
1854 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1855 if (hw->mac.type == I40E_MAC_X722) {
1856 val = X722_EEPROM_SCOPE_LIMIT + 1;
1859 val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1860 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1861 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1862 /* register returns value in power of 2, 64Kbyte chunks. */
1863 val = (64 * 1024) * BIT(val);
1867 static int i40e_set_eeprom(struct net_device *netdev,
1868 struct ethtool_eeprom *eeprom, u8 *bytes)
1870 struct i40e_netdev_priv *np = netdev_priv(netdev);
1871 struct i40e_hw *hw = &np->vsi->back->hw;
1872 struct i40e_pf *pf = np->vsi->back;
1873 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1878 /* normal ethtool set_eeprom is not supported */
1879 magic = hw->vendor_id | (hw->device_id << 16);
1880 if (eeprom->magic == magic)
1881 errno = -EOPNOTSUPP;
1882 /* check for NVMUpdate access method */
1883 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1885 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1886 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1889 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1891 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1892 dev_info(&pf->pdev->dev,
1893 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1894 ret_val, hw->aq.asq_last_status, errno,
1895 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1896 cmd->offset, cmd->data_size);
1901 static void i40e_get_drvinfo(struct net_device *netdev,
1902 struct ethtool_drvinfo *drvinfo)
1904 struct i40e_netdev_priv *np = netdev_priv(netdev);
1905 struct i40e_vsi *vsi = np->vsi;
1906 struct i40e_pf *pf = vsi->back;
1908 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1909 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1910 sizeof(drvinfo->fw_version));
1911 strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1912 sizeof(drvinfo->bus_info));
1913 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1914 if (pf->hw.pf_id == 0)
1915 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1918 static void i40e_get_ringparam(struct net_device *netdev,
1919 struct ethtool_ringparam *ring)
1921 struct i40e_netdev_priv *np = netdev_priv(netdev);
1922 struct i40e_pf *pf = np->vsi->back;
1923 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1925 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1926 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1927 ring->rx_mini_max_pending = 0;
1928 ring->rx_jumbo_max_pending = 0;
1929 ring->rx_pending = vsi->rx_rings[0]->count;
1930 ring->tx_pending = vsi->tx_rings[0]->count;
1931 ring->rx_mini_pending = 0;
1932 ring->rx_jumbo_pending = 0;
1935 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1937 if (i40e_enabled_xdp_vsi(vsi)) {
1938 return index < vsi->num_queue_pairs ||
1939 (index >= vsi->alloc_queue_pairs &&
1940 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1943 return index < vsi->num_queue_pairs;
1946 static int i40e_set_ringparam(struct net_device *netdev,
1947 struct ethtool_ringparam *ring)
1949 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1950 struct i40e_netdev_priv *np = netdev_priv(netdev);
1951 struct i40e_hw *hw = &np->vsi->back->hw;
1952 struct i40e_vsi *vsi = np->vsi;
1953 struct i40e_pf *pf = vsi->back;
1954 u32 new_rx_count, new_tx_count;
1955 u16 tx_alloc_queue_pairs;
1959 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1962 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1963 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1964 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1965 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1967 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1968 ring->tx_pending, ring->rx_pending,
1969 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1973 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1974 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1976 /* if nothing to do return success */
1977 if ((new_tx_count == vsi->tx_rings[0]->count) &&
1978 (new_rx_count == vsi->rx_rings[0]->count))
1981 /* If there is a AF_XDP page pool attached to any of Rx rings,
1982 * disallow changing the number of descriptors -- regardless
1983 * if the netdev is running or not.
1985 if (i40e_xsk_any_rx_ring_enabled(vsi))
1988 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1992 usleep_range(1000, 2000);
1995 if (!netif_running(vsi->netdev)) {
1996 /* simple case - set for the next time the netdev is started */
1997 for (i = 0; i < vsi->num_queue_pairs; i++) {
1998 vsi->tx_rings[i]->count = new_tx_count;
1999 vsi->rx_rings[i]->count = new_rx_count;
2000 if (i40e_enabled_xdp_vsi(vsi))
2001 vsi->xdp_rings[i]->count = new_tx_count;
2003 vsi->num_tx_desc = new_tx_count;
2004 vsi->num_rx_desc = new_rx_count;
2008 /* We can't just free everything and then setup again,
2009 * because the ISRs in MSI-X mode get passed pointers
2010 * to the Tx and Rx ring structs.
2013 /* alloc updated Tx and XDP Tx resources */
2014 tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2015 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2016 if (new_tx_count != vsi->tx_rings[0]->count) {
2018 "Changing Tx descriptor count from %d to %d.\n",
2019 vsi->tx_rings[0]->count, new_tx_count);
2020 tx_rings = kcalloc(tx_alloc_queue_pairs,
2021 sizeof(struct i40e_ring), GFP_KERNEL);
2027 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2028 if (!i40e_active_tx_ring_index(vsi, i))
2031 tx_rings[i] = *vsi->tx_rings[i];
2032 tx_rings[i].count = new_tx_count;
2033 /* the desc and bi pointers will be reallocated in the
2036 tx_rings[i].desc = NULL;
2037 tx_rings[i].rx_bi = NULL;
2038 err = i40e_setup_tx_descriptors(&tx_rings[i]);
2042 if (!i40e_active_tx_ring_index(vsi, i))
2044 i40e_free_tx_resources(&tx_rings[i]);
2054 /* alloc updated Rx resources */
2055 if (new_rx_count != vsi->rx_rings[0]->count) {
2057 "Changing Rx descriptor count from %d to %d\n",
2058 vsi->rx_rings[0]->count, new_rx_count);
2059 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2060 sizeof(struct i40e_ring), GFP_KERNEL);
2066 for (i = 0; i < vsi->num_queue_pairs; i++) {
2069 /* clone ring and setup updated count */
2070 rx_rings[i] = *vsi->rx_rings[i];
2071 rx_rings[i].count = new_rx_count;
2072 /* the desc and bi pointers will be reallocated in the
2075 rx_rings[i].desc = NULL;
2076 rx_rings[i].rx_bi = NULL;
2077 /* Clear cloned XDP RX-queue info before setup call */
2078 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2079 /* this is to allow wr32 to have something to write to
2080 * during early allocation of Rx buffers
2082 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2083 err = i40e_setup_rx_descriptors(&rx_rings[i]);
2086 err = i40e_alloc_rx_bi(&rx_rings[i]);
2090 /* now allocate the Rx buffers to make sure the OS
2091 * has enough memory, any failure here means abort
2093 unused = I40E_DESC_UNUSED(&rx_rings[i]);
2094 err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2098 i40e_free_rx_resources(&rx_rings[i]);
2108 /* Bring interface down, copy in the new ring info,
2109 * then restore the interface
2114 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2115 if (i40e_active_tx_ring_index(vsi, i)) {
2116 i40e_free_tx_resources(vsi->tx_rings[i]);
2117 *vsi->tx_rings[i] = tx_rings[i];
2125 for (i = 0; i < vsi->num_queue_pairs; i++) {
2126 i40e_free_rx_resources(vsi->rx_rings[i]);
2127 /* get the real tail offset */
2128 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2129 /* this is to fake out the allocation routine
2130 * into thinking it has to realloc everything
2131 * but the recycling logic will let us re-use
2132 * the buffers allocated above
2134 rx_rings[i].next_to_use = 0;
2135 rx_rings[i].next_to_clean = 0;
2136 rx_rings[i].next_to_alloc = 0;
2137 /* do a struct copy */
2138 *vsi->rx_rings[i] = rx_rings[i];
2144 vsi->num_tx_desc = new_tx_count;
2145 vsi->num_rx_desc = new_rx_count;
2149 /* error cleanup if the Rx allocations failed after getting Tx */
2151 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2152 if (i40e_active_tx_ring_index(vsi, i))
2153 i40e_free_tx_resources(vsi->tx_rings[i]);
2160 clear_bit(__I40E_CONFIG_BUSY, pf->state);
2166 * i40e_get_stats_count - return the stats count for a device
2167 * @netdev: the netdev to return the count for
2169 * Returns the total number of statistics for this netdev. Note that even
2170 * though this is a function, it is required that the count for a specific
2171 * netdev must never change. Basing the count on static values such as the
2172 * maximum number of queues or the device type is ok. However, the API for
2173 * obtaining stats is *not* safe against changes based on non-static
2174 * values such as the *current* number of queues, or runtime flags.
2176 * If a statistic is not always enabled, return it as part of the count
2177 * anyways, always return its string, and report its value as zero.
2179 static int i40e_get_stats_count(struct net_device *netdev)
2181 struct i40e_netdev_priv *np = netdev_priv(netdev);
2182 struct i40e_vsi *vsi = np->vsi;
2183 struct i40e_pf *pf = vsi->back;
2186 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2187 stats_len = I40E_PF_STATS_LEN;
2189 stats_len = I40E_VSI_STATS_LEN;
2191 /* The number of stats reported for a given net_device must remain
2192 * constant throughout the life of that device.
2194 * This is because the API for obtaining the size, strings, and stats
2195 * is spread out over three separate ethtool ioctls. There is no safe
2196 * way to lock the number of stats across these calls, so we must
2197 * assume that they will never change.
2199 * Due to this, we report the maximum number of queues, even if not
2200 * every queue is currently configured. Since we always allocate
2201 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2202 * works because the num_tx_queues is set at device creation and never
2205 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2210 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2212 struct i40e_netdev_priv *np = netdev_priv(netdev);
2213 struct i40e_vsi *vsi = np->vsi;
2214 struct i40e_pf *pf = vsi->back;
2218 return I40E_TEST_LEN;
2220 return i40e_get_stats_count(netdev);
2221 case ETH_SS_PRIV_FLAGS:
2222 return I40E_PRIV_FLAGS_STR_LEN +
2223 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2230 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure
2231 * @tc: the TC statistics in VEB structure (veb->tc_stats)
2232 * @i: the index of traffic class in (veb->tc_stats) structure to copy
2234 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to
2235 * one dimensional structure i40e_cp_veb_tc_stats.
2236 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC
2237 * statistics for the given TC.
2239 static struct i40e_cp_veb_tc_stats
2240 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i)
2242 struct i40e_cp_veb_tc_stats veb_tc = {
2243 .tc_rx_packets = tc->tc_rx_packets[i],
2244 .tc_rx_bytes = tc->tc_rx_bytes[i],
2245 .tc_tx_packets = tc->tc_tx_packets[i],
2246 .tc_tx_bytes = tc->tc_tx_bytes[i],
2253 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2254 * @pf: the PF device structure
2255 * @i: the priority value to copy
2257 * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2258 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2259 * of the PFC stats for the given priority.
2261 static inline struct i40e_pfc_stats
2262 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2264 #define I40E_GET_PFC_STAT(stat, priority) \
2265 .stat = pf->stats.stat[priority]
2267 struct i40e_pfc_stats pfc = {
2268 I40E_GET_PFC_STAT(priority_xon_rx, i),
2269 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2270 I40E_GET_PFC_STAT(priority_xon_tx, i),
2271 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2272 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2278 * i40e_get_ethtool_stats - copy stat values into supplied buffer
2279 * @netdev: the netdev to collect stats for
2280 * @stats: ethtool stats command structure
2281 * @data: ethtool supplied buffer
2283 * Copy the stats values for this netdev into the buffer. Expects data to be
2284 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2285 * statistics must be copied in a static order, and the count must not change
2286 * for a given netdev. See i40e_get_stats_count for more details.
2288 * If a statistic is not currently valid (such as a disabled queue), this
2289 * function reports its value as zero.
2291 static void i40e_get_ethtool_stats(struct net_device *netdev,
2292 struct ethtool_stats *stats, u64 *data)
2294 struct i40e_netdev_priv *np = netdev_priv(netdev);
2295 struct i40e_vsi *vsi = np->vsi;
2296 struct i40e_pf *pf = vsi->back;
2297 struct i40e_veb *veb = NULL;
2302 i40e_update_stats(vsi);
2304 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2305 i40e_gstrings_net_stats);
2307 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2310 for (i = 0; i < netdev->num_tx_queues; i++) {
2311 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2312 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2316 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2317 goto check_data_pointer;
2319 veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2320 (pf->lan_veb < I40E_MAX_VEB) &&
2321 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2324 veb = pf->veb[pf->lan_veb];
2325 i40e_update_veb_stats(veb);
2328 /* If veb stats aren't enabled, pass NULL instead of the veb so that
2329 * we initialize stats to zero and update the data pointer
2332 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2333 i40e_gstrings_veb_stats);
2335 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2337 struct i40e_cp_veb_tc_stats veb_tc =
2338 i40e_get_veb_tc_stats(&veb->tc_stats, i);
2340 i40e_add_ethtool_stats(&data, &veb_tc,
2341 i40e_gstrings_veb_tc_stats);
2343 i40e_add_ethtool_stats(&data, NULL,
2344 i40e_gstrings_veb_tc_stats);
2347 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2349 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2350 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2352 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2356 WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2357 "ethtool stats count mismatch!");
2361 * i40e_get_stat_strings - copy stat strings into supplied buffer
2362 * @netdev: the netdev to collect strings for
2363 * @data: supplied buffer to copy strings into
2365 * Copy the strings related to stats for this netdev. Expects data to be
2366 * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2367 * strings must be copied in a static order and the total count must not
2368 * change for a given netdev. See i40e_get_stats_count for more details.
2370 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2372 struct i40e_netdev_priv *np = netdev_priv(netdev);
2373 struct i40e_vsi *vsi = np->vsi;
2374 struct i40e_pf *pf = vsi->back;
2378 i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2380 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2382 for (i = 0; i < netdev->num_tx_queues; i++) {
2383 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2385 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2389 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2390 goto check_data_pointer;
2392 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2394 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2395 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2397 i40e_add_stat_strings(&data, i40e_gstrings_stats);
2399 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2400 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2403 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2404 "stat strings count mismatch!");
2407 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2409 struct i40e_netdev_priv *np = netdev_priv(netdev);
2410 struct i40e_vsi *vsi = np->vsi;
2411 struct i40e_pf *pf = vsi->back;
2415 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++)
2416 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string);
2417 if (pf->hw.pf_id != 0)
2419 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++)
2420 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string);
2423 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2426 switch (stringset) {
2428 memcpy(data, i40e_gstrings_test,
2429 I40E_TEST_LEN * ETH_GSTRING_LEN);
2432 i40e_get_stat_strings(netdev, data);
2434 case ETH_SS_PRIV_FLAGS:
2435 i40e_get_priv_flag_strings(netdev, data);
2442 static int i40e_get_ts_info(struct net_device *dev,
2443 struct ethtool_ts_info *info)
2445 struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2447 /* only report HW timestamping if PTP is enabled */
2448 if (!(pf->flags & I40E_FLAG_PTP))
2449 return ethtool_op_get_ts_info(dev, info);
2451 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2452 SOF_TIMESTAMPING_RX_SOFTWARE |
2453 SOF_TIMESTAMPING_SOFTWARE |
2454 SOF_TIMESTAMPING_TX_HARDWARE |
2455 SOF_TIMESTAMPING_RX_HARDWARE |
2456 SOF_TIMESTAMPING_RAW_HARDWARE;
2459 info->phc_index = ptp_clock_index(pf->ptp_clock);
2461 info->phc_index = -1;
2463 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2465 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2466 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2467 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2468 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2470 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2471 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2472 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2473 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2474 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2475 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2476 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2477 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2478 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2483 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2485 struct i40e_netdev_priv *np = netdev_priv(netdev);
2486 struct i40e_pf *pf = np->vsi->back;
2488 bool link_up = false;
2490 netif_info(pf, hw, netdev, "link test\n");
2491 status = i40e_get_link_status(&pf->hw, &link_up);
2493 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2506 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2508 struct i40e_netdev_priv *np = netdev_priv(netdev);
2509 struct i40e_pf *pf = np->vsi->back;
2511 netif_info(pf, hw, netdev, "register test\n");
2512 *data = i40e_diag_reg_test(&pf->hw);
2517 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2519 struct i40e_netdev_priv *np = netdev_priv(netdev);
2520 struct i40e_pf *pf = np->vsi->back;
2522 netif_info(pf, hw, netdev, "eeprom test\n");
2523 *data = i40e_diag_eeprom_test(&pf->hw);
2525 /* forcebly clear the NVM Update state machine */
2526 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2531 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2533 struct i40e_netdev_priv *np = netdev_priv(netdev);
2534 struct i40e_pf *pf = np->vsi->back;
2535 u16 swc_old = pf->sw_int_count;
2537 netif_info(pf, hw, netdev, "interrupt test\n");
2538 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2539 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2540 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2541 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2542 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2543 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2544 usleep_range(1000, 2000);
2545 *data = (swc_old == pf->sw_int_count);
2550 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2552 struct i40e_vf *vfs = pf->vf;
2555 for (i = 0; i < pf->num_alloc_vfs; i++)
2556 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2561 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2563 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2566 static void i40e_diag_test(struct net_device *netdev,
2567 struct ethtool_test *eth_test, u64 *data)
2569 struct i40e_netdev_priv *np = netdev_priv(netdev);
2570 bool if_running = netif_running(netdev);
2571 struct i40e_pf *pf = np->vsi->back;
2573 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2575 netif_info(pf, drv, netdev, "offline testing starting\n");
2577 set_bit(__I40E_TESTING, pf->state);
2579 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2580 dev_warn(&pf->pdev->dev,
2581 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2582 data[I40E_ETH_TEST_REG] = 1;
2583 data[I40E_ETH_TEST_EEPROM] = 1;
2584 data[I40E_ETH_TEST_INTR] = 1;
2585 data[I40E_ETH_TEST_LINK] = 1;
2586 eth_test->flags |= ETH_TEST_FL_FAILED;
2587 clear_bit(__I40E_TESTING, pf->state);
2591 /* If the device is online then take it offline */
2593 /* indicate we're in test mode */
2596 /* This reset does not affect link - if it is
2597 * changed to a type of reset that does affect
2598 * link then the following link test would have
2599 * to be moved to before the reset
2601 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2603 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2604 eth_test->flags |= ETH_TEST_FL_FAILED;
2606 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2607 eth_test->flags |= ETH_TEST_FL_FAILED;
2609 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2610 eth_test->flags |= ETH_TEST_FL_FAILED;
2612 /* run reg test last, a reset is required after it */
2613 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2614 eth_test->flags |= ETH_TEST_FL_FAILED;
2616 clear_bit(__I40E_TESTING, pf->state);
2617 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2623 netif_info(pf, drv, netdev, "online testing starting\n");
2625 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2626 eth_test->flags |= ETH_TEST_FL_FAILED;
2628 /* Offline only tests, not run in online; pass by default */
2629 data[I40E_ETH_TEST_REG] = 0;
2630 data[I40E_ETH_TEST_EEPROM] = 0;
2631 data[I40E_ETH_TEST_INTR] = 0;
2636 netif_info(pf, drv, netdev, "testing finished\n");
2639 static void i40e_get_wol(struct net_device *netdev,
2640 struct ethtool_wolinfo *wol)
2642 struct i40e_netdev_priv *np = netdev_priv(netdev);
2643 struct i40e_pf *pf = np->vsi->back;
2644 struct i40e_hw *hw = &pf->hw;
2647 /* NVM bit on means WoL disabled for the port */
2648 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2649 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2653 wol->supported = WAKE_MAGIC;
2654 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2659 * i40e_set_wol - set the WakeOnLAN configuration
2660 * @netdev: the netdev in question
2661 * @wol: the ethtool WoL setting data
2663 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2665 struct i40e_netdev_priv *np = netdev_priv(netdev);
2666 struct i40e_pf *pf = np->vsi->back;
2667 struct i40e_vsi *vsi = np->vsi;
2668 struct i40e_hw *hw = &pf->hw;
2671 /* WoL not supported if this isn't the controlling PF on the port */
2672 if (hw->partition_id != 1) {
2673 i40e_partition_setting_complaint(pf);
2677 if (vsi != pf->vsi[pf->lan_vsi])
2680 /* NVM bit on means WoL disabled for the port */
2681 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2682 if (BIT(hw->port) & wol_nvm_bits)
2685 /* only magic packet is supported */
2686 if (wol->wolopts & ~WAKE_MAGIC)
2689 /* is this a new value? */
2690 if (pf->wol_en != !!wol->wolopts) {
2691 pf->wol_en = !!wol->wolopts;
2692 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2698 static int i40e_set_phys_id(struct net_device *netdev,
2699 enum ethtool_phys_id_state state)
2701 struct i40e_netdev_priv *np = netdev_priv(netdev);
2702 i40e_status ret = 0;
2703 struct i40e_pf *pf = np->vsi->back;
2704 struct i40e_hw *hw = &pf->hw;
2709 case ETHTOOL_ID_ACTIVE:
2710 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2711 pf->led_status = i40e_led_get(hw);
2713 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2714 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2716 ret = i40e_led_get_phy(hw, &temp_status,
2718 pf->led_status = temp_status;
2722 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2723 i40e_led_set(hw, 0xf, false);
2725 ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2727 case ETHTOOL_ID_OFF:
2728 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2729 i40e_led_set(hw, 0x0, false);
2731 ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2733 case ETHTOOL_ID_INACTIVE:
2734 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2735 i40e_led_set(hw, pf->led_status, false);
2737 ret = i40e_led_set_phy(hw, false, pf->led_status,
2739 I40E_PHY_LED_MODE_ORIG));
2740 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2741 i40e_aq_set_phy_debug(hw, 0, NULL);
2753 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2754 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2755 * 125us (8000 interrupts per second) == ITR(62)
2759 * __i40e_get_coalesce - get per-queue coalesce settings
2760 * @netdev: the netdev to check
2761 * @ec: ethtool coalesce data structure
2762 * @queue: which queue to pick
2764 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2765 * are per queue. If queue is <0 then we default to queue 0 as the
2766 * representative value.
2768 static int __i40e_get_coalesce(struct net_device *netdev,
2769 struct ethtool_coalesce *ec,
2772 struct i40e_netdev_priv *np = netdev_priv(netdev);
2773 struct i40e_ring *rx_ring, *tx_ring;
2774 struct i40e_vsi *vsi = np->vsi;
2776 ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2777 ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2779 /* rx and tx usecs has per queue value. If user doesn't specify the
2780 * queue, return queue 0's value to represent.
2784 else if (queue >= vsi->num_queue_pairs)
2787 rx_ring = vsi->rx_rings[queue];
2788 tx_ring = vsi->tx_rings[queue];
2790 if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2791 ec->use_adaptive_rx_coalesce = 1;
2793 if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2794 ec->use_adaptive_tx_coalesce = 1;
2796 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2797 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2799 /* we use the _usecs_high to store/set the interrupt rate limit
2800 * that the hardware supports, that almost but not quite
2801 * fits the original intent of the ethtool variable,
2802 * the rx_coalesce_usecs_high limits total interrupts
2803 * per second from both tx/rx sources.
2805 ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2806 ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2812 * i40e_get_coalesce - get a netdev's coalesce settings
2813 * @netdev: the netdev to check
2814 * @ec: ethtool coalesce data structure
2816 * Gets the coalesce settings for a particular netdev. Note that if user has
2817 * modified per-queue settings, this only guarantees to represent queue 0. See
2818 * __i40e_get_coalesce for more details.
2820 static int i40e_get_coalesce(struct net_device *netdev,
2821 struct ethtool_coalesce *ec)
2823 return __i40e_get_coalesce(netdev, ec, -1);
2827 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2828 * @netdev: netdev structure
2829 * @ec: ethtool's coalesce settings
2830 * @queue: the particular queue to read
2832 * Will read a specific queue's coalesce settings
2834 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2835 struct ethtool_coalesce *ec)
2837 return __i40e_get_coalesce(netdev, ec, queue);
2841 * i40e_set_itr_per_queue - set ITR values for specific queue
2842 * @vsi: the VSI to set values for
2843 * @ec: coalesce settings from ethtool
2844 * @queue: the queue to modify
2846 * Change the ITR settings for a specific queue.
2848 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2849 struct ethtool_coalesce *ec,
2852 struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2853 struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2854 struct i40e_pf *pf = vsi->back;
2855 struct i40e_hw *hw = &pf->hw;
2856 struct i40e_q_vector *q_vector;
2859 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2861 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2862 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2864 if (ec->use_adaptive_rx_coalesce)
2865 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2867 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2869 if (ec->use_adaptive_tx_coalesce)
2870 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2872 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2874 q_vector = rx_ring->q_vector;
2875 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2877 q_vector = tx_ring->q_vector;
2878 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2880 /* The interrupt handler itself will take care of programming
2881 * the Tx and Rx ITR values based on the values we have entered
2882 * into the q_vector, no need to write the values now.
2885 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2890 * __i40e_set_coalesce - set coalesce settings for particular queue
2891 * @netdev: the netdev to change
2892 * @ec: ethtool coalesce settings
2893 * @queue: the queue to change
2895 * Sets the coalesce settings for a particular queue.
2897 static int __i40e_set_coalesce(struct net_device *netdev,
2898 struct ethtool_coalesce *ec,
2901 struct i40e_netdev_priv *np = netdev_priv(netdev);
2902 u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2903 struct i40e_vsi *vsi = np->vsi;
2904 struct i40e_pf *pf = vsi->back;
2907 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2908 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2911 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
2912 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
2913 } else if (queue < vsi->num_queue_pairs) {
2914 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
2915 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
2917 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2918 vsi->num_queue_pairs - 1);
2922 cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2923 cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2925 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2926 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2927 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2931 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2932 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2933 INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2937 if (ec->rx_coalesce_usecs != cur_rx_itr &&
2938 ec->use_adaptive_rx_coalesce) {
2939 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2943 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
2944 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2948 if (ec->tx_coalesce_usecs != cur_tx_itr &&
2949 ec->use_adaptive_tx_coalesce) {
2950 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2954 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
2955 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2959 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2960 ec->rx_coalesce_usecs = I40E_MIN_ITR;
2962 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2963 ec->tx_coalesce_usecs = I40E_MIN_ITR;
2965 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2966 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2967 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2968 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2969 vsi->int_rate_limit);
2972 /* rx and tx usecs has per queue value. If user doesn't specify the
2973 * queue, apply to all queues.
2976 for (i = 0; i < vsi->num_queue_pairs; i++)
2977 i40e_set_itr_per_queue(vsi, ec, i);
2979 i40e_set_itr_per_queue(vsi, ec, queue);
2986 * i40e_set_coalesce - set coalesce settings for every queue on the netdev
2987 * @netdev: the netdev to change
2988 * @ec: ethtool coalesce settings
2990 * This will set each queue to the same coalesce settings.
2992 static int i40e_set_coalesce(struct net_device *netdev,
2993 struct ethtool_coalesce *ec)
2995 return __i40e_set_coalesce(netdev, ec, -1);
2999 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
3000 * @netdev: the netdev to change
3001 * @ec: ethtool's coalesce settings
3002 * @queue: the queue to change
3004 * Sets the specified queue's coalesce settings.
3006 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
3007 struct ethtool_coalesce *ec)
3009 return __i40e_set_coalesce(netdev, ec, queue);
3013 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
3014 * @pf: pointer to the physical function struct
3015 * @cmd: ethtool rxnfc command
3017 * Returns Success if the flow is supported, else Invalid Input.
3019 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
3021 struct i40e_hw *hw = &pf->hw;
3027 switch (cmd->flow_type) {
3029 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3032 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3035 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3038 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3041 case AH_ESP_V4_FLOW:
3046 case AH_ESP_V6_FLOW:
3050 /* Default is src/dest for IP, no matter the L4 hashing */
3051 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3057 /* Read flow based hash input set register */
3059 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3061 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3062 flow_pctype)) << 32);
3065 /* Process bits of hash input set */
3067 if (i_set & I40E_L4_SRC_MASK)
3068 cmd->data |= RXH_L4_B_0_1;
3069 if (i_set & I40E_L4_DST_MASK)
3070 cmd->data |= RXH_L4_B_2_3;
3072 if (cmd->flow_type == TCP_V4_FLOW ||
3073 cmd->flow_type == UDP_V4_FLOW) {
3074 if (i_set & I40E_L3_SRC_MASK)
3075 cmd->data |= RXH_IP_SRC;
3076 if (i_set & I40E_L3_DST_MASK)
3077 cmd->data |= RXH_IP_DST;
3078 } else if (cmd->flow_type == TCP_V6_FLOW ||
3079 cmd->flow_type == UDP_V6_FLOW) {
3080 if (i_set & I40E_L3_V6_SRC_MASK)
3081 cmd->data |= RXH_IP_SRC;
3082 if (i_set & I40E_L3_V6_DST_MASK)
3083 cmd->data |= RXH_IP_DST;
3091 * i40e_check_mask - Check whether a mask field is set
3092 * @mask: the full mask value
3093 * @field: mask of the field to check
3095 * If the given mask is fully set, return positive value. If the mask for the
3096 * field is fully unset, return zero. Otherwise return a negative error code.
3098 static int i40e_check_mask(u64 mask, u64 field)
3100 u64 value = mask & field;
3111 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3112 * @fsp: pointer to rx flow specification
3113 * @data: pointer to userdef data structure for storage
3115 * Read the user-defined data and deconstruct the value into a structure. No
3116 * other code should read the user-defined data, so as to ensure that every
3117 * place consistently reads the value correctly.
3119 * The user-defined field is a 64bit Big Endian format value, which we
3120 * deconstruct by reading bits or bit fields from it. Single bit flags shall
3121 * be defined starting from the highest bits, while small bit field values
3122 * shall be defined starting from the lowest bits.
3124 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3125 * and the filter should be rejected. The data structure will always be
3126 * modified even if FLOW_EXT is not set.
3129 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3130 struct i40e_rx_flow_userdef *data)
3135 /* Zero memory first so it's always consistent. */
3136 memset(data, 0, sizeof(*data));
3138 if (!(fsp->flow_type & FLOW_EXT))
3141 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3142 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3144 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0)
3145 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16)
3146 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0)
3148 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3152 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3154 (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3155 data->flex_filter = true;
3162 * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3163 * @fsp: pointer to rx_flow specification
3164 * @data: pointer to return userdef data
3166 * Reads the userdef data structure and properly fills in the user defined
3167 * fields of the rx_flow_spec.
3169 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3170 struct i40e_rx_flow_userdef *data)
3172 u64 value = 0, mask = 0;
3174 if (data->flex_filter) {
3175 value |= data->flex_word;
3176 value |= (u64)data->flex_offset << 16;
3177 mask |= I40E_USERDEF_FLEX_FILTER;
3181 fsp->flow_type |= FLOW_EXT;
3183 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3184 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3188 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3189 * @pf: Pointer to the physical function struct
3190 * @cmd: The command to get or set Rx flow classification rules
3191 * @rule_locs: Array of used rule locations
3193 * This function populates both the total and actual rule count of
3194 * the ethtool flow classification command
3196 * Returns 0 on success or -EMSGSIZE if entry not found
3198 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3199 struct ethtool_rxnfc *cmd,
3202 struct i40e_fdir_filter *rule;
3203 struct hlist_node *node2;
3206 /* report total rule count */
3207 cmd->data = i40e_get_fd_cnt_all(pf);
3209 hlist_for_each_entry_safe(rule, node2,
3210 &pf->fdir_filter_list, fdir_node) {
3211 if (cnt == cmd->rule_cnt)
3214 rule_locs[cnt] = rule->fd_id;
3218 cmd->rule_cnt = cnt;
3224 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3225 * @pf: Pointer to the physical function struct
3226 * @cmd: The command to get or set Rx flow classification rules
3228 * This function looks up a filter based on the Rx flow classification
3229 * command and fills the flow spec info for it if found
3231 * Returns 0 on success or -EINVAL if filter not found
3233 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3234 struct ethtool_rxnfc *cmd)
3236 struct ethtool_rx_flow_spec *fsp =
3237 (struct ethtool_rx_flow_spec *)&cmd->fs;
3238 struct i40e_rx_flow_userdef userdef = {0};
3239 struct i40e_fdir_filter *rule = NULL;
3240 struct hlist_node *node2;
3244 hlist_for_each_entry_safe(rule, node2,
3245 &pf->fdir_filter_list, fdir_node) {
3246 if (fsp->location <= rule->fd_id)
3250 if (!rule || fsp->location != rule->fd_id)
3253 fsp->flow_type = rule->flow_type;
3254 if (fsp->flow_type == IP_USER_FLOW) {
3255 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3256 fsp->h_u.usr_ip4_spec.proto = 0;
3257 fsp->m_u.usr_ip4_spec.proto = 0;
3260 if (fsp->flow_type == IPV6_USER_FLOW ||
3261 fsp->flow_type == UDP_V6_FLOW ||
3262 fsp->flow_type == TCP_V6_FLOW ||
3263 fsp->flow_type == SCTP_V6_FLOW) {
3264 /* Reverse the src and dest notion, since the HW views them
3265 * from Tx perspective where as the user expects it from
3268 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3269 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3270 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3271 sizeof(__be32) * 4);
3272 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3273 sizeof(__be32) * 4);
3275 /* Reverse the src and dest notion, since the HW views them
3276 * from Tx perspective where as the user expects it from
3279 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3280 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3281 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3282 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3285 switch (rule->flow_type) {
3287 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3290 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3293 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3296 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3299 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3302 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3305 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3307 case IPV6_USER_FLOW:
3308 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3311 /* If we have stored a filter with a flow type not listed here
3312 * it is almost certainly a driver bug. WARN(), and then
3313 * assign the input_set as if all fields are enabled to avoid
3314 * reading unassigned memory.
3316 WARN(1, "Missing input set index for flow_type %d\n",
3318 input_set = 0xFFFFFFFFFFFFFFFFULL;
3322 input_set = i40e_read_fd_input_set(pf, index);
3325 if (input_set & I40E_L3_V6_SRC_MASK) {
3326 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3327 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3328 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3329 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3332 if (input_set & I40E_L3_V6_DST_MASK) {
3333 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3334 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3335 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3336 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3339 if (input_set & I40E_L3_SRC_MASK)
3340 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3342 if (input_set & I40E_L3_DST_MASK)
3343 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3345 if (input_set & I40E_L4_SRC_MASK)
3346 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3348 if (input_set & I40E_L4_DST_MASK)
3349 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3351 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3352 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3354 fsp->ring_cookie = rule->q_index;
3356 if (rule->vlan_tag) {
3357 fsp->h_ext.vlan_etype = rule->vlan_etype;
3358 fsp->m_ext.vlan_etype = htons(0xFFFF);
3359 fsp->h_ext.vlan_tci = rule->vlan_tag;
3360 fsp->m_ext.vlan_tci = htons(0xFFFF);
3361 fsp->flow_type |= FLOW_EXT;
3364 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3365 struct i40e_vsi *vsi;
3367 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3368 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3369 /* VFs are zero-indexed by the driver, but ethtool
3370 * expects them to be one-indexed, so add one here
3372 u64 ring_vf = vsi->vf_id + 1;
3374 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3375 fsp->ring_cookie |= ring_vf;
3379 if (rule->flex_filter) {
3380 userdef.flex_filter = true;
3381 userdef.flex_word = be16_to_cpu(rule->flex_word);
3382 userdef.flex_offset = rule->flex_offset;
3385 i40e_fill_rx_flow_user_data(fsp, &userdef);
3391 * i40e_get_rxnfc - command to get RX flow classification rules
3392 * @netdev: network interface device structure
3393 * @cmd: ethtool rxnfc command
3394 * @rule_locs: pointer to store rule data
3396 * Returns Success if the command is supported.
3398 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3401 struct i40e_netdev_priv *np = netdev_priv(netdev);
3402 struct i40e_vsi *vsi = np->vsi;
3403 struct i40e_pf *pf = vsi->back;
3404 int ret = -EOPNOTSUPP;
3407 case ETHTOOL_GRXRINGS:
3408 cmd->data = vsi->rss_size;
3412 ret = i40e_get_rss_hash_opts(pf, cmd);
3414 case ETHTOOL_GRXCLSRLCNT:
3415 cmd->rule_cnt = pf->fdir_pf_active_filters;
3416 /* report total rule count */
3417 cmd->data = i40e_get_fd_cnt_all(pf);
3420 case ETHTOOL_GRXCLSRULE:
3421 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3423 case ETHTOOL_GRXCLSRLALL:
3424 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3434 * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3435 * @nfc: pointer to user request
3436 * @i_setc: bits currently set
3438 * Returns value of bits to be set per user request
3440 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
3443 u64 src_l3 = 0, dst_l3 = 0;
3445 if (nfc->data & RXH_L4_B_0_1)
3446 i_set |= I40E_L4_SRC_MASK;
3448 i_set &= ~I40E_L4_SRC_MASK;
3449 if (nfc->data & RXH_L4_B_2_3)
3450 i_set |= I40E_L4_DST_MASK;
3452 i_set &= ~I40E_L4_DST_MASK;
3454 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3455 src_l3 = I40E_L3_V6_SRC_MASK;
3456 dst_l3 = I40E_L3_V6_DST_MASK;
3457 } else if (nfc->flow_type == TCP_V4_FLOW ||
3458 nfc->flow_type == UDP_V4_FLOW) {
3459 src_l3 = I40E_L3_SRC_MASK;
3460 dst_l3 = I40E_L3_DST_MASK;
3462 /* Any other flow type are not supported here */
3466 if (nfc->data & RXH_IP_SRC)
3470 if (nfc->data & RXH_IP_DST)
3479 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3480 * @pf: pointer to the physical function struct
3481 * @nfc: ethtool rxnfc command
3483 * Returns Success if the flow input set is supported.
3485 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3487 struct i40e_hw *hw = &pf->hw;
3488 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3489 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3493 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3494 dev_err(&pf->pdev->dev,
3495 "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3499 /* RSS does not support anything other than hashing
3500 * to queues on src and dst IPs and ports
3502 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3503 RXH_L4_B_0_1 | RXH_L4_B_2_3))
3506 switch (nfc->flow_type) {
3508 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3509 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3511 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3514 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3515 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3517 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3518 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3520 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3523 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3524 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3526 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
3527 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3529 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3532 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3533 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3535 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
3536 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3538 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3540 case AH_ESP_V4_FLOW:
3544 if ((nfc->data & RXH_L4_B_0_1) ||
3545 (nfc->data & RXH_L4_B_2_3))
3547 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3549 case AH_ESP_V6_FLOW:
3553 if ((nfc->data & RXH_L4_B_0_1) ||
3554 (nfc->data & RXH_L4_B_2_3))
3556 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3559 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3560 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3563 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3564 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3571 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3573 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3574 flow_pctype)) << 32);
3575 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3576 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3578 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3579 (u32)(i_set >> 32));
3580 hena |= BIT_ULL(flow_pctype);
3583 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3584 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3591 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3592 * @vsi: Pointer to the targeted VSI
3593 * @input: The filter to update or NULL to indicate deletion
3594 * @sw_idx: Software index to the filter
3595 * @cmd: The command to get or set Rx flow classification rules
3597 * This function updates (or deletes) a Flow Director entry from
3598 * the hlist of the corresponding PF
3600 * Returns 0 on success
3602 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3603 struct i40e_fdir_filter *input,
3605 struct ethtool_rxnfc *cmd)
3607 struct i40e_fdir_filter *rule, *parent;
3608 struct i40e_pf *pf = vsi->back;
3609 struct hlist_node *node2;
3615 hlist_for_each_entry_safe(rule, node2,
3616 &pf->fdir_filter_list, fdir_node) {
3617 /* hash found, or no matching entry */
3618 if (rule->fd_id >= sw_idx)
3623 /* if there is an old rule occupying our place remove it */
3624 if (rule && (rule->fd_id == sw_idx)) {
3625 /* Remove this rule, since we're either deleting it, or
3628 err = i40e_add_del_fdir(vsi, rule, false);
3629 hlist_del(&rule->fdir_node);
3631 pf->fdir_pf_active_filters--;
3634 /* If we weren't given an input, this is a delete, so just return the
3635 * error code indicating if there was an entry at the requested slot
3640 /* Otherwise, install the new rule as requested */
3641 INIT_HLIST_NODE(&input->fdir_node);
3643 /* add filter to the list */
3645 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3647 hlist_add_head(&input->fdir_node,
3648 &pf->fdir_filter_list);
3651 pf->fdir_pf_active_filters++;
3657 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3658 * @pf: pointer to PF structure
3660 * This function searches the list of filters and determines which FLX_PIT
3661 * entries are still required. It will prune any entries which are no longer
3662 * in use after the deletion.
3664 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3666 struct i40e_flex_pit *entry, *tmp;
3667 struct i40e_fdir_filter *rule;
3669 /* First, we'll check the l3 table */
3670 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3673 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3674 if (rule->flow_type != IP_USER_FLOW)
3676 if (rule->flex_filter &&
3677 rule->flex_offset == entry->src_offset) {
3683 /* If we didn't find the filter, then we can prune this entry
3687 list_del(&entry->list);
3692 /* Followed by the L4 table */
3693 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3696 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3697 /* Skip this filter if it's L3, since we already
3698 * checked those in the above loop
3700 if (rule->flow_type == IP_USER_FLOW)
3702 if (rule->flex_filter &&
3703 rule->flex_offset == entry->src_offset) {
3709 /* If we didn't find the filter, then we can prune this entry
3713 list_del(&entry->list);
3720 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3721 * @vsi: Pointer to the targeted VSI
3722 * @cmd: The command to get or set Rx flow classification rules
3724 * The function removes a Flow Director filter entry from the
3725 * hlist of the corresponding PF
3727 * Returns 0 on success
3729 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3730 struct ethtool_rxnfc *cmd)
3732 struct ethtool_rx_flow_spec *fsp =
3733 (struct ethtool_rx_flow_spec *)&cmd->fs;
3734 struct i40e_pf *pf = vsi->back;
3737 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3738 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3741 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3744 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3746 i40e_prune_flex_pit_list(pf);
3748 i40e_fdir_check_and_reenable(pf);
3753 * i40e_unused_pit_index - Find an unused PIT index for given list
3754 * @pf: the PF data structure
3756 * Find the first unused flexible PIT index entry. We search both the L3 and
3757 * L4 flexible PIT lists so that the returned index is unique and unused by
3758 * either currently programmed L3 or L4 filters. We use a bit field as storage
3759 * to track which indexes are already used.
3761 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3763 unsigned long available_index = 0xFF;
3764 struct i40e_flex_pit *entry;
3766 /* We need to make sure that the new index isn't in use by either L3
3767 * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3768 * L4 to use the same index.
3771 list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3772 clear_bit(entry->pit_index, &available_index);
3774 list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3775 clear_bit(entry->pit_index, &available_index);
3777 return find_first_bit(&available_index, 8);
3781 * i40e_find_flex_offset - Find an existing flex src_offset
3782 * @flex_pit_list: L3 or L4 flex PIT list
3783 * @src_offset: new src_offset to find
3785 * Searches the flex_pit_list for an existing offset. If no offset is
3786 * currently programmed, then this will return an ERR_PTR if there is no space
3787 * to add a new offset, otherwise it returns NULL.
3790 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3793 struct i40e_flex_pit *entry;
3796 /* Search for the src_offset first. If we find a matching entry
3797 * already programmed, we can simply re-use it.
3799 list_for_each_entry(entry, flex_pit_list, list) {
3801 if (entry->src_offset == src_offset)
3805 /* If we haven't found an entry yet, then the provided src offset has
3806 * not yet been programmed. We will program the src offset later on,
3807 * but we need to indicate whether there is enough space to do so
3808 * here. We'll make use of ERR_PTR for this purpose.
3810 if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3811 return ERR_PTR(-ENOSPC);
3817 * i40e_add_flex_offset - Add src_offset to flex PIT table list
3818 * @flex_pit_list: L3 or L4 flex PIT list
3819 * @src_offset: new src_offset to add
3820 * @pit_index: the PIT index to program
3822 * This function programs the new src_offset to the list. It is expected that
3823 * i40e_find_flex_offset has already been tried and returned NULL, indicating
3824 * that this offset is not programmed, and that the list has enough space to
3825 * store another offset.
3827 * Returns 0 on success, and negative value on error.
3829 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3833 struct i40e_flex_pit *new_pit, *entry;
3835 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3839 new_pit->src_offset = src_offset;
3840 new_pit->pit_index = pit_index;
3842 /* We need to insert this item such that the list is sorted by
3843 * src_offset in ascending order.
3845 list_for_each_entry(entry, flex_pit_list, list) {
3846 if (new_pit->src_offset < entry->src_offset) {
3847 list_add_tail(&new_pit->list, &entry->list);
3851 /* If we found an entry with our offset already programmed we
3852 * can simply return here, after freeing the memory. However,
3853 * if the pit_index does not match we need to report an error.
3855 if (new_pit->src_offset == entry->src_offset) {
3858 /* If the PIT index is not the same we can't re-use
3859 * the entry, so we must report an error.
3861 if (new_pit->pit_index != entry->pit_index)
3869 /* If we reached here, then we haven't yet added the item. This means
3870 * that we should add the item at the end of the list.
3872 list_add_tail(&new_pit->list, flex_pit_list);
3877 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3878 * @pf: Pointer to the PF structure
3879 * @flex_pit_list: list of flexible src offsets in use
3880 * @flex_pit_start: index to first entry for this section of the table
3882 * In order to handle flexible data, the hardware uses a table of values
3883 * called the FLX_PIT table. This table is used to indicate which sections of
3884 * the input correspond to what PIT index values. Unfortunately, hardware is
3885 * very restrictive about programming this table. Entries must be ordered by
3886 * src_offset in ascending order, without duplicates. Additionally, unused
3887 * entries must be set to the unused index value, and must have valid size and
3888 * length according to the src_offset ordering.
3890 * This function will reprogram the FLX_PIT register from a book-keeping
3891 * structure that we guarantee is already ordered correctly, and has no more
3894 * To make things easier, we only support flexible values of one word length,
3895 * rather than allowing variable length flexible values.
3897 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3898 struct list_head *flex_pit_list,
3901 struct i40e_flex_pit *entry = NULL;
3902 u16 last_offset = 0;
3905 /* First, loop over the list of flex PIT entries, and reprogram the
3908 list_for_each_entry(entry, flex_pit_list, list) {
3909 /* We have to be careful when programming values for the
3910 * largest SRC_OFFSET value. It is possible that adding
3911 * additional empty values at the end would overflow the space
3912 * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3913 * we check here and add the empty values prior to adding the
3916 * To determine this, we will use a loop from i+1 to 3, which
3917 * will determine whether the unused entries would have valid
3918 * SRC_OFFSET. Note that there cannot be extra entries past
3919 * this value, because the only valid values would have been
3920 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3921 * have been added to the list in the first place.
3923 for (j = i + 1; j < 3; j++) {
3924 u16 offset = entry->src_offset + j;
3925 int index = flex_pit_start + i;
3926 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3930 if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3931 i40e_write_rx_ctl(&pf->hw,
3932 I40E_PRTQF_FLX_PIT(index),
3938 /* Now, we can program the actual value into the table */
3939 i40e_write_rx_ctl(&pf->hw,
3940 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3941 I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3943 entry->src_offset));
3947 /* In order to program the last entries in the table, we need to
3948 * determine the valid offset. If the list is empty, we'll just start
3949 * with 0. Otherwise, we'll start with the last item offset and add 1.
3950 * This ensures that all entries have valid sizes. If we don't do this
3951 * correctly, the hardware will disable flexible field parsing.
3953 if (!list_empty(flex_pit_list))
3954 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3956 for (; i < 3; i++, last_offset++) {
3957 i40e_write_rx_ctl(&pf->hw,
3958 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3959 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3966 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3967 * @pf: pointer to the PF structure
3969 * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3970 * internal helper function for implementation details.
3972 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
3974 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
3975 I40E_FLEX_PIT_IDX_START_L3);
3977 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
3978 I40E_FLEX_PIT_IDX_START_L4);
3980 /* We also need to program the L3 and L4 GLQF ORT register */
3981 i40e_write_rx_ctl(&pf->hw,
3982 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
3983 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
3986 i40e_write_rx_ctl(&pf->hw,
3987 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
3988 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
3993 * i40e_flow_str - Converts a flow_type into a human readable string
3994 * @fsp: the flow specification
3996 * Currently only flow types we support are included here, and the string
3997 * value attempts to match what ethtool would use to configure this flow type.
3999 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
4001 switch (fsp->flow_type & ~FLOW_EXT) {
4016 case IPV6_USER_FLOW:
4024 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
4025 * @pit_index: PIT index to convert
4027 * Returns the mask for a given PIT index. Will return 0 if the pit_index is
4030 static u64 i40e_pit_index_to_mask(int pit_index)
4032 switch (pit_index) {
4034 return I40E_FLEX_50_MASK;
4036 return I40E_FLEX_51_MASK;
4038 return I40E_FLEX_52_MASK;
4040 return I40E_FLEX_53_MASK;
4042 return I40E_FLEX_54_MASK;
4044 return I40E_FLEX_55_MASK;
4046 return I40E_FLEX_56_MASK;
4048 return I40E_FLEX_57_MASK;
4055 * i40e_print_input_set - Show changes between two input sets
4056 * @vsi: the vsi being configured
4057 * @old: the old input set
4058 * @new: the new input set
4060 * Print the difference between old and new input sets by showing which series
4061 * of words are toggled on or off. Only displays the bits we actually support
4064 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4066 struct i40e_pf *pf = vsi->back;
4067 bool old_value, new_value;
4070 old_value = !!(old & I40E_L3_SRC_MASK);
4071 new_value = !!(new & I40E_L3_SRC_MASK);
4072 if (old_value != new_value)
4073 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4074 old_value ? "ON" : "OFF",
4075 new_value ? "ON" : "OFF");
4077 old_value = !!(old & I40E_L3_DST_MASK);
4078 new_value = !!(new & I40E_L3_DST_MASK);
4079 if (old_value != new_value)
4080 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4081 old_value ? "ON" : "OFF",
4082 new_value ? "ON" : "OFF");
4084 old_value = !!(old & I40E_L4_SRC_MASK);
4085 new_value = !!(new & I40E_L4_SRC_MASK);
4086 if (old_value != new_value)
4087 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4088 old_value ? "ON" : "OFF",
4089 new_value ? "ON" : "OFF");
4091 old_value = !!(old & I40E_L4_DST_MASK);
4092 new_value = !!(new & I40E_L4_DST_MASK);
4093 if (old_value != new_value)
4094 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4095 old_value ? "ON" : "OFF",
4096 new_value ? "ON" : "OFF");
4098 old_value = !!(old & I40E_VERIFY_TAG_MASK);
4099 new_value = !!(new & I40E_VERIFY_TAG_MASK);
4100 if (old_value != new_value)
4101 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4102 old_value ? "ON" : "OFF",
4103 new_value ? "ON" : "OFF");
4105 /* Show change of flexible filter entries */
4106 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4107 u64 flex_mask = i40e_pit_index_to_mask(i);
4109 old_value = !!(old & flex_mask);
4110 new_value = !!(new & flex_mask);
4111 if (old_value != new_value)
4112 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4114 old_value ? "ON" : "OFF",
4115 new_value ? "ON" : "OFF");
4118 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n",
4120 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4125 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4126 * @vsi: pointer to the targeted VSI
4127 * @fsp: pointer to Rx flow specification
4128 * @userdef: userdefined data from flow specification
4130 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4131 * for partial matches exists with a few limitations. First, hardware only
4132 * supports masking by word boundary (2 bytes) and not per individual bit.
4133 * Second, hardware is limited to using one mask for a flow type and cannot
4134 * use a separate mask for each filter.
4136 * To support these limitations, if we already have a configured filter for
4137 * the specified type, this function enforces that new filters of the type
4138 * match the configured input set. Otherwise, if we do not have a filter of
4139 * the specified type, we allow the input set to be updated to match the
4142 * To help ensure that administrators understand why filters weren't displayed
4143 * as supported, we print a diagnostic message displaying how the input set
4144 * would change and warning to delete the preexisting filters if required.
4146 * Returns 0 on successful input set match, and a negative return code on
4149 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4150 struct ethtool_rx_flow_spec *fsp,
4151 struct i40e_rx_flow_userdef *userdef)
4153 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4154 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4155 cpu_to_be32(0xffffffff)};
4156 struct ethtool_tcpip6_spec *tcp_ip6_spec;
4157 struct ethtool_usrip6_spec *usr_ip6_spec;
4158 struct ethtool_tcpip4_spec *tcp_ip4_spec;
4159 struct ethtool_usrip4_spec *usr_ip4_spec;
4160 struct i40e_pf *pf = vsi->back;
4161 u64 current_mask, new_mask;
4162 bool new_flex_offset = false;
4163 bool flex_l3 = false;
4164 u16 *fdir_filter_count;
4165 u16 index, src_offset = 0;
4169 switch (fsp->flow_type & ~FLOW_EXT) {
4171 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4172 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4175 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4176 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4179 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4180 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4183 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4184 fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4187 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4188 fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4191 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4192 fdir_filter_count = &pf->fd_udp6_filter_cnt;
4195 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4196 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4199 case IPV6_USER_FLOW:
4200 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4201 fdir_filter_count = &pf->fd_ip6_filter_cnt;
4208 /* Read the current input set from register memory. */
4209 current_mask = i40e_read_fd_input_set(pf, index);
4210 new_mask = current_mask;
4212 /* Determine, if any, the required changes to the input set in order
4213 * to support the provided mask.
4215 * Hardware only supports masking at word (2 byte) granularity and does
4216 * not support full bitwise masking. This implementation simplifies
4217 * even further and only supports fully enabled or fully disabled
4218 * masks for each field, even though we could split the ip4src and
4221 switch (fsp->flow_type & ~FLOW_EXT) {
4223 new_mask &= ~I40E_VERIFY_TAG_MASK;
4227 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4229 /* IPv4 source address */
4230 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4231 new_mask |= I40E_L3_SRC_MASK;
4232 else if (!tcp_ip4_spec->ip4src)
4233 new_mask &= ~I40E_L3_SRC_MASK;
4237 /* IPv4 destination address */
4238 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4239 new_mask |= I40E_L3_DST_MASK;
4240 else if (!tcp_ip4_spec->ip4dst)
4241 new_mask &= ~I40E_L3_DST_MASK;
4245 /* L4 source port */
4246 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4247 new_mask |= I40E_L4_SRC_MASK;
4248 else if (!tcp_ip4_spec->psrc)
4249 new_mask &= ~I40E_L4_SRC_MASK;
4253 /* L4 destination port */
4254 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4255 new_mask |= I40E_L4_DST_MASK;
4256 else if (!tcp_ip4_spec->pdst)
4257 new_mask &= ~I40E_L4_DST_MASK;
4261 /* Filtering on Type of Service is not supported. */
4262 if (tcp_ip4_spec->tos)
4267 new_mask &= ~I40E_VERIFY_TAG_MASK;
4271 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4273 /* Check if user provided IPv6 source address. */
4274 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4275 (struct in6_addr *)&ipv6_full_mask))
4276 new_mask |= I40E_L3_V6_SRC_MASK;
4277 else if (ipv6_addr_any((struct in6_addr *)
4278 &tcp_ip6_spec->ip6src))
4279 new_mask &= ~I40E_L3_V6_SRC_MASK;
4283 /* Check if user provided destination address. */
4284 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4285 (struct in6_addr *)&ipv6_full_mask))
4286 new_mask |= I40E_L3_V6_DST_MASK;
4287 else if (ipv6_addr_any((struct in6_addr *)
4288 &tcp_ip6_spec->ip6dst))
4289 new_mask &= ~I40E_L3_V6_DST_MASK;
4293 /* L4 source port */
4294 if (tcp_ip6_spec->psrc == htons(0xFFFF))
4295 new_mask |= I40E_L4_SRC_MASK;
4296 else if (!tcp_ip6_spec->psrc)
4297 new_mask &= ~I40E_L4_SRC_MASK;
4301 /* L4 destination port */
4302 if (tcp_ip6_spec->pdst == htons(0xFFFF))
4303 new_mask |= I40E_L4_DST_MASK;
4304 else if (!tcp_ip6_spec->pdst)
4305 new_mask &= ~I40E_L4_DST_MASK;
4309 /* Filtering on Traffic Classes is not supported. */
4310 if (tcp_ip6_spec->tclass)
4314 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4316 /* IPv4 source address */
4317 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4318 new_mask |= I40E_L3_SRC_MASK;
4319 else if (!usr_ip4_spec->ip4src)
4320 new_mask &= ~I40E_L3_SRC_MASK;
4324 /* IPv4 destination address */
4325 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4326 new_mask |= I40E_L3_DST_MASK;
4327 else if (!usr_ip4_spec->ip4dst)
4328 new_mask &= ~I40E_L3_DST_MASK;
4332 /* First 4 bytes of L4 header */
4333 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4334 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4335 else if (!usr_ip4_spec->l4_4_bytes)
4336 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4340 /* Filtering on Type of Service is not supported. */
4341 if (usr_ip4_spec->tos)
4344 /* Filtering on IP version is not supported */
4345 if (usr_ip4_spec->ip_ver)
4348 /* Filtering on L4 protocol is not supported */
4349 if (usr_ip4_spec->proto)
4353 case IPV6_USER_FLOW:
4354 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4356 /* Check if user provided IPv6 source address. */
4357 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4358 (struct in6_addr *)&ipv6_full_mask))
4359 new_mask |= I40E_L3_V6_SRC_MASK;
4360 else if (ipv6_addr_any((struct in6_addr *)
4361 &usr_ip6_spec->ip6src))
4362 new_mask &= ~I40E_L3_V6_SRC_MASK;
4366 /* Check if user provided destination address. */
4367 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4368 (struct in6_addr *)&ipv6_full_mask))
4369 new_mask |= I40E_L3_V6_DST_MASK;
4370 else if (ipv6_addr_any((struct in6_addr *)
4371 &usr_ip6_spec->ip6src))
4372 new_mask &= ~I40E_L3_V6_DST_MASK;
4376 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4377 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4378 else if (!usr_ip6_spec->l4_4_bytes)
4379 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4383 /* Filtering on Traffic class is not supported. */
4384 if (usr_ip6_spec->tclass)
4387 /* Filtering on L4 protocol is not supported */
4388 if (usr_ip6_spec->l4_proto)
4396 if (fsp->flow_type & FLOW_EXT) {
4397 /* Allow only 802.1Q and no etype defined, as
4398 * later it's modified to 0x8100
4400 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4401 fsp->h_ext.vlan_etype != 0)
4403 if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4404 new_mask |= I40E_VLAN_SRC_MASK;
4406 new_mask &= ~I40E_VLAN_SRC_MASK;
4409 /* First, clear all flexible filter entries */
4410 new_mask &= ~I40E_FLEX_INPUT_MASK;
4412 /* If we have a flexible filter, try to add this offset to the correct
4413 * flexible filter PIT list. Once finished, we can update the mask.
4414 * If the src_offset changed, we will get a new mask value which will
4415 * trigger an input set change.
4417 if (userdef->flex_filter) {
4418 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4420 /* Flexible offset must be even, since the flexible payload
4421 * must be aligned on 2-byte boundary.
4423 if (userdef->flex_offset & 0x1) {
4424 dev_warn(&pf->pdev->dev,
4425 "Flexible data offset must be 2-byte aligned\n");
4429 src_offset = userdef->flex_offset >> 1;
4431 /* FLX_PIT source offset value is only so large */
4432 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4433 dev_warn(&pf->pdev->dev,
4434 "Flexible data must reside within first 64 bytes of the packet payload\n");
4438 /* See if this offset has already been programmed. If we get
4439 * an ERR_PTR, then the filter is not safe to add. Otherwise,
4440 * if we get a NULL pointer, this means we will need to add
4443 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4445 if (IS_ERR(flex_pit))
4446 return PTR_ERR(flex_pit);
4448 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4449 * packet types, and thus we need to program both L3 and L4
4450 * flexible values. These must have identical flexible index,
4451 * as otherwise we can't correctly program the input set. So
4452 * we'll find both an L3 and L4 index and make sure they are
4457 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4459 if (IS_ERR(l3_flex_pit))
4460 return PTR_ERR(l3_flex_pit);
4463 /* If we already had a matching L4 entry, we
4464 * need to make sure that the L3 entry we
4465 * obtained uses the same index.
4468 if (l3_flex_pit->pit_index !=
4469 flex_pit->pit_index) {
4473 new_flex_offset = true;
4476 flex_pit = l3_flex_pit;
4480 /* If we didn't find an existing flex offset, we need to
4481 * program a new one. However, we don't immediately program it
4482 * here because we will wait to program until after we check
4483 * that it is safe to change the input set.
4486 new_flex_offset = true;
4487 pit_index = i40e_unused_pit_index(pf);
4489 pit_index = flex_pit->pit_index;
4492 /* Update the mask with the new offset */
4493 new_mask |= i40e_pit_index_to_mask(pit_index);
4496 /* If the mask and flexible filter offsets for this filter match the
4497 * currently programmed values we don't need any input set change, so
4498 * this filter is safe to install.
4500 if (new_mask == current_mask && !new_flex_offset)
4503 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4504 i40e_flow_str(fsp));
4505 i40e_print_input_set(vsi, current_mask, new_mask);
4506 if (new_flex_offset) {
4507 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4508 pit_index, src_offset);
4511 /* Hardware input sets are global across multiple ports, so even the
4512 * main port cannot change them when in MFP mode as this would impact
4513 * any filters on the other ports.
4515 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4516 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4520 /* This filter requires us to update the input set. However, hardware
4521 * only supports one input set per flow type, and does not support
4522 * separate masks for each filter. This means that we can only support
4523 * a single mask for all filters of a specific type.
4525 * If we have preexisting filters, they obviously depend on the
4526 * current programmed input set. Display a diagnostic message in this
4527 * case explaining why the filter could not be accepted.
4529 if (*fdir_filter_count) {
4530 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4532 *fdir_filter_count);
4536 i40e_write_fd_input_set(pf, index, new_mask);
4538 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4539 * frames. If we're programming the input set for IPv4/Other, we also
4540 * need to program the IPv4/Fragmented input set. Since we don't have
4541 * separate support, we'll always assume and enforce that the two flow
4542 * types must have matching input sets.
4544 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4545 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4548 /* Add the new offset and update table, if necessary */
4549 if (new_flex_offset) {
4550 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4556 err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4563 i40e_reprogram_flex_pit(pf);
4570 * i40e_match_fdir_filter - Return true of two filters match
4571 * @a: pointer to filter struct
4572 * @b: pointer to filter struct
4574 * Returns true if the two filters match exactly the same criteria. I.e. they
4575 * match the same flow type and have the same parameters. We don't need to
4576 * check any input-set since all filters of the same flow type must use the
4579 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4580 struct i40e_fdir_filter *b)
4582 /* The filters do not much if any of these criteria differ. */
4583 if (a->dst_ip != b->dst_ip ||
4584 a->src_ip != b->src_ip ||
4585 a->dst_port != b->dst_port ||
4586 a->src_port != b->src_port ||
4587 a->flow_type != b->flow_type ||
4588 a->ipl4_proto != b->ipl4_proto ||
4589 a->vlan_tag != b->vlan_tag ||
4590 a->vlan_etype != b->vlan_etype)
4597 * i40e_disallow_matching_filters - Check that new filters differ
4598 * @vsi: pointer to the targeted VSI
4599 * @input: new filter to check
4601 * Due to hardware limitations, it is not possible for two filters that match
4602 * similar criteria to be programmed at the same time. This is true for a few
4605 * (a) all filters matching a particular flow type must use the same input
4606 * set, that is they must match the same criteria.
4607 * (b) different flow types will never match the same packet, as the flow type
4608 * is decided by hardware before checking which rules apply.
4609 * (c) hardware has no way to distinguish which order filters apply in.
4611 * Due to this, we can't really support using the location data to order
4612 * filters in the hardware parsing. It is technically possible for the user to
4613 * request two filters matching the same criteria but which select different
4614 * queues. In this case, rather than keep both filters in the list, we reject
4615 * the 2nd filter when the user requests adding it.
4617 * This avoids needing to track location for programming the filter to
4618 * hardware, and ensures that we avoid some strange scenarios involving
4619 * deleting filters which match the same criteria.
4621 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4622 struct i40e_fdir_filter *input)
4624 struct i40e_pf *pf = vsi->back;
4625 struct i40e_fdir_filter *rule;
4626 struct hlist_node *node2;
4628 /* Loop through every filter, and check that it doesn't match */
4629 hlist_for_each_entry_safe(rule, node2,
4630 &pf->fdir_filter_list, fdir_node) {
4631 /* Don't check the filters match if they share the same fd_id,
4632 * since the new filter is actually just updating the target
4633 * of the old filter.
4635 if (rule->fd_id == input->fd_id)
4638 /* If any filters match, then print a warning message to the
4639 * kernel message buffer and bail out.
4641 if (i40e_match_fdir_filter(rule, input)) {
4642 dev_warn(&pf->pdev->dev,
4643 "Existing user defined filter %d already matches this flow.\n",
4653 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4654 * @vsi: pointer to the targeted VSI
4655 * @cmd: command to get or set RX flow classification rules
4657 * Add Flow Director filters for a specific flow spec based on their
4658 * protocol. Returns 0 if the filters were successfully added.
4660 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4661 struct ethtool_rxnfc *cmd)
4663 struct i40e_rx_flow_userdef userdef;
4664 struct ethtool_rx_flow_spec *fsp;
4665 struct i40e_fdir_filter *input;
4666 u16 dest_vsi = 0, q_index = 0;
4675 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4678 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4681 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4682 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4685 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4688 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4690 /* Parse the user-defined field */
4691 if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4694 /* Extended MAC field is not supported */
4695 if (fsp->flow_type & FLOW_MAC_EXT)
4698 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4702 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4703 pf->hw.func_caps.fd_filters_guaranteed)) {
4707 /* ring_cookie is either the drop index, or is a mask of the queue
4708 * index and VF id we wish to target.
4710 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4711 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4713 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4714 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4717 if (ring >= vsi->num_queue_pairs)
4721 /* VFs are zero-indexed, so we subtract one here */
4724 if (vf >= pf->num_alloc_vfs)
4726 if (ring >= pf->vf[vf].num_queue_pairs)
4728 dest_vsi = pf->vf[vf].lan_vsi_id;
4730 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4734 input = kzalloc(sizeof(*input), GFP_KERNEL);
4739 input->fd_id = fsp->location;
4740 input->q_index = q_index;
4741 input->dest_vsi = dest_vsi;
4742 input->dest_ctl = dest_ctl;
4743 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4744 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4745 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4746 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4747 input->flow_type = fsp->flow_type & ~FLOW_EXT;
4749 input->vlan_etype = fsp->h_ext.vlan_etype;
4750 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4751 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4752 if (fsp->m_ext.vlan_tci && input->vlan_etype)
4753 input->vlan_tag = fsp->h_ext.vlan_tci;
4754 if (input->flow_type == IPV6_USER_FLOW ||
4755 input->flow_type == UDP_V6_FLOW ||
4756 input->flow_type == TCP_V6_FLOW ||
4757 input->flow_type == SCTP_V6_FLOW) {
4758 /* Reverse the src and dest notion, since the HW expects them
4759 * to be from Tx perspective where as the input from user is
4760 * from Rx filter view.
4762 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4763 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4764 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4765 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4766 sizeof(__be32) * 4);
4767 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4768 sizeof(__be32) * 4);
4770 /* Reverse the src and dest notion, since the HW expects them
4771 * to be from Tx perspective where as the input from user is
4772 * from Rx filter view.
4774 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4775 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4776 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4777 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4778 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4781 if (userdef.flex_filter) {
4782 input->flex_filter = true;
4783 input->flex_word = cpu_to_be16(userdef.flex_word);
4784 input->flex_offset = userdef.flex_offset;
4787 /* Avoid programming two filters with identical match criteria. */
4788 ret = i40e_disallow_matching_filters(vsi, input);
4790 goto free_filter_memory;
4792 /* Add the input filter to the fdir_input_list, possibly replacing
4793 * a previous filter. Do not free the input structure after adding it
4794 * to the list as this would cause a use-after-free bug.
4796 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4797 ret = i40e_add_del_fdir(vsi, input, true);
4799 goto remove_sw_rule;
4803 hlist_del(&input->fdir_node);
4804 pf->fdir_pf_active_filters--;
4811 * i40e_set_rxnfc - command to set RX flow classification rules
4812 * @netdev: network interface device structure
4813 * @cmd: ethtool rxnfc command
4815 * Returns Success if the command is supported.
4817 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4819 struct i40e_netdev_priv *np = netdev_priv(netdev);
4820 struct i40e_vsi *vsi = np->vsi;
4821 struct i40e_pf *pf = vsi->back;
4822 int ret = -EOPNOTSUPP;
4826 ret = i40e_set_rss_hash_opt(pf, cmd);
4828 case ETHTOOL_SRXCLSRLINS:
4829 ret = i40e_add_fdir_ethtool(vsi, cmd);
4831 case ETHTOOL_SRXCLSRLDEL:
4832 ret = i40e_del_fdir_entry(vsi, cmd);
4842 * i40e_max_channels - get Max number of combined channels supported
4845 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4847 /* TODO: This code assumes DCB and FD is disabled for now. */
4848 return vsi->alloc_queue_pairs;
4852 * i40e_get_channels - Get the current channels enabled and max supported etc.
4853 * @dev: network interface device structure
4854 * @ch: ethtool channels structure
4856 * We don't support separate tx and rx queues as channels. The other count
4857 * represents how many queues are being used for control. max_combined counts
4858 * how many queue pairs we can support. They may not be mapped 1 to 1 with
4859 * q_vectors since we support a lot more queue pairs than q_vectors.
4861 static void i40e_get_channels(struct net_device *dev,
4862 struct ethtool_channels *ch)
4864 struct i40e_netdev_priv *np = netdev_priv(dev);
4865 struct i40e_vsi *vsi = np->vsi;
4866 struct i40e_pf *pf = vsi->back;
4868 /* report maximum channels */
4869 ch->max_combined = i40e_max_channels(vsi);
4871 /* report info for other vector */
4872 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4873 ch->max_other = ch->other_count;
4875 /* Note: This code assumes DCB is disabled for now. */
4876 ch->combined_count = vsi->num_queue_pairs;
4880 * i40e_set_channels - Set the new channels count.
4881 * @dev: network interface device structure
4882 * @ch: ethtool channels structure
4884 * The new channels count may not be the same as requested by the user
4885 * since it gets rounded down to a power of 2 value.
4887 static int i40e_set_channels(struct net_device *dev,
4888 struct ethtool_channels *ch)
4890 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4891 struct i40e_netdev_priv *np = netdev_priv(dev);
4892 unsigned int count = ch->combined_count;
4893 struct i40e_vsi *vsi = np->vsi;
4894 struct i40e_pf *pf = vsi->back;
4895 struct i40e_fdir_filter *rule;
4896 struct hlist_node *node2;
4900 /* We do not support setting channels for any other VSI at present */
4901 if (vsi->type != I40E_VSI_MAIN)
4904 /* We do not support setting channels via ethtool when TCs are
4905 * configured through mqprio
4907 if (pf->flags & I40E_FLAG_TC_MQPRIO)
4910 /* verify they are not requesting separate vectors */
4911 if (!count || ch->rx_count || ch->tx_count)
4914 /* verify other_count has not changed */
4915 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4918 /* verify the number of channels does not exceed hardware limits */
4919 if (count > i40e_max_channels(vsi))
4922 /* verify that the number of channels does not invalidate any current
4923 * flow director rules
4925 hlist_for_each_entry_safe(rule, node2,
4926 &pf->fdir_filter_list, fdir_node) {
4927 if (rule->dest_ctl != drop && count <= rule->q_index) {
4928 dev_warn(&pf->pdev->dev,
4929 "Existing user defined filter %d assigns flow to queue %d\n",
4930 rule->fd_id, rule->q_index);
4936 dev_err(&pf->pdev->dev,
4937 "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4942 /* update feature limits from largest to smallest supported values */
4943 /* TODO: Flow director limit, DCB etc */
4945 /* use rss_reconfig to rebuild with new queue count and update traffic
4946 * class queue mapping
4948 new_count = i40e_reconfig_rss_queues(pf, count);
4956 * i40e_get_rxfh_key_size - get the RSS hash key size
4957 * @netdev: network interface device structure
4959 * Returns the table size.
4961 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4963 return I40E_HKEY_ARRAY_SIZE;
4967 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4968 * @netdev: network interface device structure
4970 * Returns the table size.
4972 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
4974 return I40E_HLUT_ARRAY_SIZE;
4978 * i40e_get_rxfh - get the rx flow hash indirection table
4979 * @netdev: network interface device structure
4980 * @indir: indirection table
4982 * @hfunc: hash function
4984 * Reads the indirection table directly from the hardware. Returns 0 on
4987 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
4990 struct i40e_netdev_priv *np = netdev_priv(netdev);
4991 struct i40e_vsi *vsi = np->vsi;
4992 u8 *lut, *seed = NULL;
4997 *hfunc = ETH_RSS_HASH_TOP;
5003 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5006 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
5009 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5010 indir[i] = (u32)(lut[i]);
5019 * i40e_set_rxfh - set the rx flow hash indirection table
5020 * @netdev: network interface device structure
5021 * @indir: indirection table
5023 * @hfunc: hash function to use
5025 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
5026 * returns 0 after programming the table.
5028 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
5029 const u8 *key, const u8 hfunc)
5031 struct i40e_netdev_priv *np = netdev_priv(netdev);
5032 struct i40e_vsi *vsi = np->vsi;
5033 struct i40e_pf *pf = vsi->back;
5037 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
5041 if (!vsi->rss_hkey_user) {
5042 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5044 if (!vsi->rss_hkey_user)
5047 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
5048 seed = vsi->rss_hkey_user;
5050 if (!vsi->rss_lut_user) {
5051 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5052 if (!vsi->rss_lut_user)
5056 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
5058 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5059 vsi->rss_lut_user[i] = (u8)(indir[i]);
5061 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5064 return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5065 I40E_HLUT_ARRAY_SIZE);
5069 * i40e_get_priv_flags - report device private flags
5070 * @dev: network interface device structure
5072 * The get string set count and the string set should be matched for each
5073 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags
5076 * Returns a u32 bitmap of flags.
5078 static u32 i40e_get_priv_flags(struct net_device *dev)
5080 struct i40e_netdev_priv *np = netdev_priv(dev);
5081 struct i40e_vsi *vsi = np->vsi;
5082 struct i40e_pf *pf = vsi->back;
5083 u32 i, j, ret_flags = 0;
5085 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5086 const struct i40e_priv_flags *priv_flags;
5088 priv_flags = &i40e_gstrings_priv_flags[i];
5090 if (priv_flags->flag & pf->flags)
5091 ret_flags |= BIT(i);
5094 if (pf->hw.pf_id != 0)
5097 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5098 const struct i40e_priv_flags *priv_flags;
5100 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5102 if (priv_flags->flag & pf->flags)
5103 ret_flags |= BIT(i + j);
5110 * i40e_set_priv_flags - set private flags
5111 * @dev: network interface device structure
5112 * @flags: bit flags to be set
5114 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5116 struct i40e_netdev_priv *np = netdev_priv(dev);
5117 u64 orig_flags, new_flags, changed_flags;
5118 enum i40e_admin_queue_err adq_err;
5119 struct i40e_vsi *vsi = np->vsi;
5120 struct i40e_pf *pf = vsi->back;
5121 u32 reset_needed = 0;
5125 orig_flags = READ_ONCE(pf->flags);
5126 new_flags = orig_flags;
5128 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5129 const struct i40e_priv_flags *priv_flags;
5131 priv_flags = &i40e_gstrings_priv_flags[i];
5134 new_flags |= priv_flags->flag;
5136 new_flags &= ~(priv_flags->flag);
5138 /* If this is a read-only flag, it can't be changed */
5139 if (priv_flags->read_only &&
5140 ((orig_flags ^ new_flags) & ~BIT(i)))
5144 if (pf->hw.pf_id != 0)
5145 goto flags_complete;
5147 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5148 const struct i40e_priv_flags *priv_flags;
5150 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5152 if (flags & BIT(i + j))
5153 new_flags |= priv_flags->flag;
5155 new_flags &= ~(priv_flags->flag);
5157 /* If this is a read-only flag, it can't be changed */
5158 if (priv_flags->read_only &&
5159 ((orig_flags ^ new_flags) & ~BIT(i)))
5164 changed_flags = orig_flags ^ new_flags;
5166 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP)
5167 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5168 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
5169 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED))
5170 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5172 /* Before we finalize any flag changes, we need to perform some
5173 * checks to ensure that the changes are supported and safe.
5176 /* ATR eviction is not supported on all devices */
5177 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
5178 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
5181 /* If the driver detected FW LLDP was disabled on init, this flag could
5182 * be set, however we do not support _changing_ the flag:
5183 * - on XL710 if NPAR is enabled or FW API version < 1.7
5184 * - on X722 with FW API version < 1.6
5185 * There are situations where older FW versions/NPAR enabled PFs could
5186 * disable LLDP, however we _must_ not allow the user to enable/disable
5187 * LLDP with this flag on unsupported FW versions.
5189 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5190 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
5191 dev_warn(&pf->pdev->dev,
5192 "Device does not support changing FW LLDP\n");
5197 if (changed_flags & I40E_FLAG_RS_FEC &&
5198 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5199 pf->hw.device_id != I40E_DEV_ID_25G_B) {
5200 dev_warn(&pf->pdev->dev,
5201 "Device does not support changing FEC configuration\n");
5205 if (changed_flags & I40E_FLAG_BASE_R_FEC &&
5206 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5207 pf->hw.device_id != I40E_DEV_ID_25G_B &&
5208 pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5209 dev_warn(&pf->pdev->dev,
5210 "Device does not support changing FEC configuration\n");
5214 /* Process any additional changes needed as a result of flag changes.
5215 * The changed_flags value reflects the list of bits that were
5216 * changed in the code above.
5219 /* Flush current ATR settings if ATR was disabled */
5220 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
5221 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
5222 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5223 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5226 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
5227 u16 sw_flags = 0, valid_flags = 0;
5230 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
5231 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5232 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5233 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5235 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5236 dev_info(&pf->pdev->dev,
5237 "couldn't set switch config bits, err %s aq_err %s\n",
5238 i40e_stat_str(&pf->hw, ret),
5239 i40e_aq_str(&pf->hw,
5240 pf->hw.aq.asq_last_status));
5241 /* not a fatal problem, just keep going */
5245 if ((changed_flags & I40E_FLAG_RS_FEC) ||
5246 (changed_flags & I40E_FLAG_BASE_R_FEC)) {
5249 if (new_flags & I40E_FLAG_RS_FEC &&
5250 new_flags & I40E_FLAG_BASE_R_FEC) {
5251 fec_cfg = I40E_AQ_SET_FEC_AUTO;
5252 } else if (new_flags & I40E_FLAG_RS_FEC) {
5253 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5254 I40E_AQ_SET_FEC_ABILITY_RS);
5255 } else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5256 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5257 I40E_AQ_SET_FEC_ABILITY_KR);
5259 if (i40e_set_fec_cfg(dev, fec_cfg))
5260 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5263 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5264 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) {
5265 dev_err(&pf->pdev->dev,
5266 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5270 if ((changed_flags & new_flags &
5271 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5272 (new_flags & I40E_FLAG_MFP_ENABLED))
5273 dev_warn(&pf->pdev->dev,
5274 "Turning on link-down-on-close flag may affect other partitions\n");
5276 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5277 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5278 #ifdef CONFIG_I40E_DCB
5279 i40e_dcb_sw_default_config(pf);
5280 #endif /* CONFIG_I40E_DCB */
5281 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5282 i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5284 status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5286 adq_err = pf->hw.aq.asq_last_status;
5288 case I40E_AQ_RC_EEXIST:
5289 dev_warn(&pf->pdev->dev,
5290 "FW LLDP agent is already running\n");
5293 case I40E_AQ_RC_EPERM:
5294 dev_warn(&pf->pdev->dev,
5295 "Device configuration forbids SW from starting the LLDP agent.\n");
5297 case I40E_AQ_RC_EAGAIN:
5298 dev_warn(&pf->pdev->dev,
5299 "Stop FW LLDP agent command is still being processed, please try again in a second.\n");
5302 dev_warn(&pf->pdev->dev,
5303 "Starting FW LLDP agent failed: error: %s, %s\n",
5304 i40e_stat_str(&pf->hw,
5306 i40e_aq_str(&pf->hw,
5314 /* Now that we've checked to ensure that the new flags are valid, load
5315 * them into place. Since we only modify flags either (a) during
5316 * initialization or (b) while holding the RTNL lock, we don't need
5317 * anything fancy here.
5319 pf->flags = new_flags;
5321 /* Issue reset to cause things to take effect, as additional bits
5322 * are added we will need to create a mask of bits requiring reset
5325 i40e_do_reset(pf, reset_needed, true);
5331 * i40e_get_module_info - get (Q)SFP+ module type info
5332 * @netdev: network interface device structure
5333 * @modinfo: module EEPROM size and layout information structure
5335 static int i40e_get_module_info(struct net_device *netdev,
5336 struct ethtool_modinfo *modinfo)
5338 struct i40e_netdev_priv *np = netdev_priv(netdev);
5339 struct i40e_vsi *vsi = np->vsi;
5340 struct i40e_pf *pf = vsi->back;
5341 struct i40e_hw *hw = &pf->hw;
5342 u32 sff8472_comp = 0;
5343 u32 sff8472_swap = 0;
5344 u32 sff8636_rev = 0;
5348 /* Check if firmware supports reading module EEPROM. */
5349 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5350 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5354 status = i40e_update_link_info(hw);
5358 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5359 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5363 type = hw->phy.link_info.module_type[0];
5366 case I40E_MODULE_TYPE_SFP:
5367 status = i40e_aq_get_phy_register(hw,
5368 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5369 I40E_I2C_EEPROM_DEV_ADDR, true,
5370 I40E_MODULE_SFF_8472_COMP,
5371 &sff8472_comp, NULL);
5375 status = i40e_aq_get_phy_register(hw,
5376 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5377 I40E_I2C_EEPROM_DEV_ADDR, true,
5378 I40E_MODULE_SFF_8472_SWAP,
5379 &sff8472_swap, NULL);
5383 /* Check if the module requires address swap to access
5384 * the other EEPROM memory page.
5386 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5387 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5388 modinfo->type = ETH_MODULE_SFF_8079;
5389 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5390 } else if (sff8472_comp == 0x00) {
5391 /* Module is not SFF-8472 compliant */
5392 modinfo->type = ETH_MODULE_SFF_8079;
5393 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5394 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5395 /* Module is SFF-8472 compliant but doesn't implement
5396 * Digital Diagnostic Monitoring (DDM).
5398 modinfo->type = ETH_MODULE_SFF_8079;
5399 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5401 modinfo->type = ETH_MODULE_SFF_8472;
5402 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5405 case I40E_MODULE_TYPE_QSFP_PLUS:
5406 /* Read from memory page 0. */
5407 status = i40e_aq_get_phy_register(hw,
5408 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5410 I40E_MODULE_REVISION_ADDR,
5411 &sff8636_rev, NULL);
5414 /* Determine revision compliance byte */
5415 if (sff8636_rev > 0x02) {
5416 /* Module is SFF-8636 compliant */
5417 modinfo->type = ETH_MODULE_SFF_8636;
5418 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5420 modinfo->type = ETH_MODULE_SFF_8436;
5421 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5424 case I40E_MODULE_TYPE_QSFP28:
5425 modinfo->type = ETH_MODULE_SFF_8636;
5426 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5429 netdev_err(vsi->netdev, "Module type unrecognized\n");
5436 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5437 * @netdev: network interface device structure
5438 * @ee: EEPROM dump request structure
5439 * @data: buffer to be filled with EEPROM contents
5441 static int i40e_get_module_eeprom(struct net_device *netdev,
5442 struct ethtool_eeprom *ee,
5445 struct i40e_netdev_priv *np = netdev_priv(netdev);
5446 struct i40e_vsi *vsi = np->vsi;
5447 struct i40e_pf *pf = vsi->back;
5448 struct i40e_hw *hw = &pf->hw;
5449 bool is_sfp = false;
5454 if (!ee || !ee->len || !data)
5457 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5460 for (i = 0; i < ee->len; i++) {
5461 u32 offset = i + ee->offset;
5462 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5464 /* Check if we need to access the other memory page */
5466 if (offset >= ETH_MODULE_SFF_8079_LEN) {
5467 offset -= ETH_MODULE_SFF_8079_LEN;
5468 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5471 while (offset >= ETH_MODULE_SFF_8436_LEN) {
5472 /* Compute memory page number and offset. */
5473 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5478 status = i40e_aq_get_phy_register(hw,
5479 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5480 addr, true, offset, &value, NULL);
5488 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5490 struct i40e_netdev_priv *np = netdev_priv(netdev);
5491 struct i40e_aq_get_phy_abilities_resp phy_cfg;
5492 enum i40e_status_code status = 0;
5493 struct i40e_vsi *vsi = np->vsi;
5494 struct i40e_pf *pf = vsi->back;
5495 struct i40e_hw *hw = &pf->hw;
5497 /* Get initial PHY capabilities */
5498 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5502 /* Check whether NIC configuration is compatible with Energy Efficient
5503 * Ethernet (EEE) mode.
5505 if (phy_cfg.eee_capability == 0)
5508 edata->supported = SUPPORTED_Autoneg;
5509 edata->lp_advertised = edata->supported;
5511 /* Get current configuration */
5512 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5516 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U;
5517 edata->eee_enabled = !!edata->advertised;
5518 edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5520 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5525 static int i40e_is_eee_param_supported(struct net_device *netdev,
5526 struct ethtool_eee *edata)
5528 struct i40e_netdev_priv *np = netdev_priv(netdev);
5529 struct i40e_vsi *vsi = np->vsi;
5530 struct i40e_pf *pf = vsi->back;
5531 struct i40e_ethtool_not_used {
5535 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"},
5536 {edata->tx_lpi_timer, "tx-timer"},
5537 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5541 for (i = 0; i < ARRAY_SIZE(param); i++) {
5542 if (param[i].value) {
5544 "EEE setting %s not supported\n",
5553 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5555 struct i40e_netdev_priv *np = netdev_priv(netdev);
5556 struct i40e_aq_get_phy_abilities_resp abilities;
5557 enum i40e_status_code status = I40E_SUCCESS;
5558 struct i40e_aq_set_phy_config config;
5559 struct i40e_vsi *vsi = np->vsi;
5560 struct i40e_pf *pf = vsi->back;
5561 struct i40e_hw *hw = &pf->hw;
5562 __le16 eee_capability;
5564 /* Deny parameters we don't support */
5565 if (i40e_is_eee_param_supported(netdev, edata))
5568 /* Get initial PHY capabilities */
5569 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5574 /* Check whether NIC configuration is compatible with Energy Efficient
5575 * Ethernet (EEE) mode.
5577 if (abilities.eee_capability == 0)
5580 /* Cache initial EEE capability */
5581 eee_capability = abilities.eee_capability;
5583 /* Get current PHY configuration */
5584 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5589 /* Cache current PHY configuration */
5590 config.phy_type = abilities.phy_type;
5591 config.phy_type_ext = abilities.phy_type_ext;
5592 config.link_speed = abilities.link_speed;
5593 config.abilities = abilities.abilities |
5594 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5595 config.eeer = abilities.eeer_val;
5596 config.low_power_ctrl = abilities.d3_lpan;
5597 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5598 I40E_AQ_PHY_FEC_CONFIG_MASK;
5600 /* Set desired EEE state */
5601 if (edata->eee_enabled) {
5602 config.eee_capability = eee_capability;
5603 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5605 config.eee_capability = 0;
5606 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5609 /* Apply modified PHY configuration */
5610 status = i40e_aq_set_phy_config(hw, &config, NULL);
5617 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5618 .get_drvinfo = i40e_get_drvinfo,
5619 .set_eeprom = i40e_set_eeprom,
5620 .get_eeprom_len = i40e_get_eeprom_len,
5621 .get_eeprom = i40e_get_eeprom,
5624 static const struct ethtool_ops i40e_ethtool_ops = {
5625 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5626 ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
5627 ETHTOOL_COALESCE_USE_ADAPTIVE |
5628 ETHTOOL_COALESCE_RX_USECS_HIGH |
5629 ETHTOOL_COALESCE_TX_USECS_HIGH,
5630 .get_drvinfo = i40e_get_drvinfo,
5631 .get_regs_len = i40e_get_regs_len,
5632 .get_regs = i40e_get_regs,
5633 .nway_reset = i40e_nway_reset,
5634 .get_link = ethtool_op_get_link,
5635 .get_wol = i40e_get_wol,
5636 .set_wol = i40e_set_wol,
5637 .set_eeprom = i40e_set_eeprom,
5638 .get_eeprom_len = i40e_get_eeprom_len,
5639 .get_eeprom = i40e_get_eeprom,
5640 .get_ringparam = i40e_get_ringparam,
5641 .set_ringparam = i40e_set_ringparam,
5642 .get_pauseparam = i40e_get_pauseparam,
5643 .set_pauseparam = i40e_set_pauseparam,
5644 .get_msglevel = i40e_get_msglevel,
5645 .set_msglevel = i40e_set_msglevel,
5646 .get_rxnfc = i40e_get_rxnfc,
5647 .set_rxnfc = i40e_set_rxnfc,
5648 .self_test = i40e_diag_test,
5649 .get_strings = i40e_get_strings,
5650 .get_eee = i40e_get_eee,
5651 .set_eee = i40e_set_eee,
5652 .set_phys_id = i40e_set_phys_id,
5653 .get_sset_count = i40e_get_sset_count,
5654 .get_ethtool_stats = i40e_get_ethtool_stats,
5655 .get_coalesce = i40e_get_coalesce,
5656 .set_coalesce = i40e_set_coalesce,
5657 .get_rxfh_key_size = i40e_get_rxfh_key_size,
5658 .get_rxfh_indir_size = i40e_get_rxfh_indir_size,
5659 .get_rxfh = i40e_get_rxfh,
5660 .set_rxfh = i40e_set_rxfh,
5661 .get_channels = i40e_get_channels,
5662 .set_channels = i40e_set_channels,
5663 .get_module_info = i40e_get_module_info,
5664 .get_module_eeprom = i40e_get_module_eeprom,
5665 .get_ts_info = i40e_get_ts_info,
5666 .get_priv_flags = i40e_get_priv_flags,
5667 .set_priv_flags = i40e_set_priv_flags,
5668 .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5669 .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5670 .get_link_ksettings = i40e_get_link_ksettings,
5671 .set_link_ksettings = i40e_set_link_ksettings,
5672 .get_fecparam = i40e_get_fec_param,
5673 .set_fecparam = i40e_set_fec_param,
5674 .flash_device = i40e_ddp_flash,
5677 void i40e_set_ethtool_ops(struct net_device *netdev)
5679 struct i40e_netdev_priv *np = netdev_priv(netdev);
5680 struct i40e_pf *pf = np->vsi->back;
5682 if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5683 netdev->ethtool_ops = &i40e_ethtool_ops;
5685 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;