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("tx_stopped", tx_stopped),
297 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
298 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
299 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse),
300 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc),
301 I40E_VSI_STAT("rx_cache_waive", rx_page_waive),
302 I40E_VSI_STAT("rx_cache_busy", rx_page_busy),
303 I40E_VSI_STAT("tx_restart", tx_restart),
306 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
307 * but they are separate. This device supports Virtualization, and
308 * as such might have several netdevs supporting VMDq and FCoE going
309 * through a single port. The NETDEV_STATs are for individual netdevs
310 * seen at the top of the stack, and the PF_STATs are for the physical
311 * function at the bottom of the stack hosting those netdevs.
313 * The PF_STATs are appended to the netdev stats only when ethtool -S
314 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
316 static const struct i40e_stats i40e_gstrings_stats[] = {
317 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
318 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
319 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
320 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
321 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
322 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
323 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
324 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
325 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
326 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
327 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
328 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
329 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
330 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
331 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
332 I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
333 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
334 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
335 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
336 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
337 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
338 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
339 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
340 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
341 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
342 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
343 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
344 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
345 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
346 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
347 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
348 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
349 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
350 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
351 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
352 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
353 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
354 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
355 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
356 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
357 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
358 I40E_PF_STAT("port.arq_overflows", arq_overflows),
359 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
360 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
361 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
362 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
363 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
364 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
365 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
366 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
367 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
370 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
371 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
372 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
373 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
376 struct i40e_pfc_stats {
378 u64 priority_xoff_rx;
380 u64 priority_xoff_tx;
381 u64 priority_xon_2_xoff;
384 static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
385 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
386 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
387 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
388 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
389 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
392 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats)
394 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats)
396 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
398 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
399 I40E_MAX_USER_PRIORITY)
401 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
402 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
403 I40E_MAX_TRAFFIC_CLASS))
405 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats)
407 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \
408 I40E_PFC_STATS_LEN + \
409 I40E_VEB_STATS_LEN + \
412 /* Length of stats for a single queue */
413 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats)
415 enum i40e_ethtool_test_id {
416 I40E_ETH_TEST_REG = 0,
417 I40E_ETH_TEST_EEPROM,
422 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
423 "Register test (offline)",
424 "Eeprom test (offline)",
425 "Interrupt test (offline)",
426 "Link test (on/offline)"
429 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
431 struct i40e_priv_flags {
432 char flag_string[ETH_GSTRING_LEN];
437 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
438 .flag_string = _name, \
440 .read_only = _read_only, \
443 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
444 /* NOTE: MFP setting cannot be changed */
445 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
446 I40E_PRIV_FLAG("total-port-shutdown",
447 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1),
448 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
449 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
450 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
451 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
452 I40E_PRIV_FLAG("link-down-on-close",
453 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
454 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
455 I40E_PRIV_FLAG("disable-source-pruning",
456 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
457 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
458 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
459 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
462 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
464 /* Private flags with a global effect, restricted to PF 0 */
465 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
466 I40E_PRIV_FLAG("vf-true-promisc-support",
467 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
470 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
473 * i40e_partition_setting_complaint - generic complaint for MFP restriction
476 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
478 dev_info(&pf->pdev->dev,
479 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
483 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
484 * @pf: PF struct with phy_types
485 * @ks: ethtool link ksettings struct to fill out
488 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
489 struct ethtool_link_ksettings *ks)
491 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
492 u64 phy_types = pf->hw.phy.phy_types;
494 ethtool_link_ksettings_zero_link_mode(ks, supported);
495 ethtool_link_ksettings_zero_link_mode(ks, advertising);
497 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
498 ethtool_link_ksettings_add_link_mode(ks, supported,
500 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
501 ethtool_link_ksettings_add_link_mode(ks, advertising,
503 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
504 ethtool_link_ksettings_add_link_mode(ks, supported,
506 ethtool_link_ksettings_add_link_mode(ks, advertising,
510 if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
511 phy_types & I40E_CAP_PHY_TYPE_XFI ||
512 phy_types & I40E_CAP_PHY_TYPE_SFI ||
513 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
514 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
515 ethtool_link_ksettings_add_link_mode(ks, supported,
517 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
518 ethtool_link_ksettings_add_link_mode(ks, advertising,
521 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
522 ethtool_link_ksettings_add_link_mode(ks, supported,
524 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
525 ethtool_link_ksettings_add_link_mode(ks, advertising,
528 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
529 ethtool_link_ksettings_add_link_mode(ks, supported,
531 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
532 ethtool_link_ksettings_add_link_mode(ks, advertising,
535 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
536 ethtool_link_ksettings_add_link_mode(ks, supported,
538 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
539 ethtool_link_ksettings_add_link_mode(ks, advertising,
542 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
543 phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
544 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
545 ethtool_link_ksettings_add_link_mode(ks, supported,
547 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
548 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
549 ethtool_link_ksettings_add_link_mode(ks, supported,
551 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
552 ethtool_link_ksettings_add_link_mode(ks, advertising,
555 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
556 ethtool_link_ksettings_add_link_mode(ks, supported,
558 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
559 ethtool_link_ksettings_add_link_mode(ks, advertising,
562 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
563 ethtool_link_ksettings_add_link_mode(ks, supported,
565 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
566 ethtool_link_ksettings_add_link_mode(ks, advertising,
569 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
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_LR4) {
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_40GBASE_KR4) {
582 ethtool_link_ksettings_add_link_mode(ks, supported,
584 ethtool_link_ksettings_add_link_mode(ks, advertising,
587 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
588 ethtool_link_ksettings_add_link_mode(ks, supported,
590 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
591 ethtool_link_ksettings_add_link_mode(ks, advertising,
594 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
595 ethtool_link_ksettings_add_link_mode(ks, supported,
597 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
598 ethtool_link_ksettings_add_link_mode(ks, advertising,
601 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
602 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
603 ethtool_link_ksettings_add_link_mode(ks, supported,
605 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
606 ethtool_link_ksettings_add_link_mode(ks, advertising,
609 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
610 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
611 ethtool_link_ksettings_add_link_mode(ks, supported,
613 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
614 ethtool_link_ksettings_add_link_mode(ks, advertising,
617 /* need to add 25G PHY types */
618 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
619 ethtool_link_ksettings_add_link_mode(ks, supported,
621 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
622 ethtool_link_ksettings_add_link_mode(ks, advertising,
625 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
626 ethtool_link_ksettings_add_link_mode(ks, supported,
628 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
629 ethtool_link_ksettings_add_link_mode(ks, advertising,
632 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
633 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
634 ethtool_link_ksettings_add_link_mode(ks, supported,
636 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
637 ethtool_link_ksettings_add_link_mode(ks, advertising,
640 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
641 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
642 ethtool_link_ksettings_add_link_mode(ks, supported,
644 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
645 ethtool_link_ksettings_add_link_mode(ks, advertising,
648 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
649 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
650 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
651 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
652 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
653 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
654 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
655 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
656 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
657 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
658 ethtool_link_ksettings_add_link_mode(ks, advertising,
660 ethtool_link_ksettings_add_link_mode(ks, advertising,
662 ethtool_link_ksettings_add_link_mode(ks, advertising,
666 /* need to add new 10G PHY types */
667 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
668 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
669 ethtool_link_ksettings_add_link_mode(ks, supported,
671 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
672 ethtool_link_ksettings_add_link_mode(ks, advertising,
675 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
676 ethtool_link_ksettings_add_link_mode(ks, supported,
678 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
679 ethtool_link_ksettings_add_link_mode(ks, advertising,
682 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
683 ethtool_link_ksettings_add_link_mode(ks, supported,
685 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
686 ethtool_link_ksettings_add_link_mode(ks, advertising,
689 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
690 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
691 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
692 ethtool_link_ksettings_add_link_mode(ks, supported,
694 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
695 ethtool_link_ksettings_add_link_mode(ks, advertising,
698 /* Autoneg PHY types */
699 if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
700 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
701 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
702 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
703 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
704 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
705 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
706 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
707 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
708 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
709 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
710 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
711 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
712 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
715 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
716 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
717 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
718 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
719 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
720 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
721 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
722 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
723 ethtool_link_ksettings_add_link_mode(ks, supported,
725 ethtool_link_ksettings_add_link_mode(ks, advertising,
731 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
732 * @req_fec_info: mask request FEC info
733 * @ks: ethtool ksettings to fill in
735 static void i40e_get_settings_link_up_fec(u8 req_fec_info,
736 struct ethtool_link_ksettings *ks)
738 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
739 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
740 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
742 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
743 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
744 ethtool_link_ksettings_add_link_mode(ks, advertising,
746 ethtool_link_ksettings_add_link_mode(ks, advertising,
748 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
749 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
750 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
751 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
752 ethtool_link_ksettings_add_link_mode(ks, advertising,
755 ethtool_link_ksettings_add_link_mode(ks, advertising,
761 * i40e_get_settings_link_up - Get the Link settings for when link is up
763 * @ks: ethtool ksettings to fill in
764 * @netdev: network interface device structure
765 * @pf: pointer to physical function struct
767 static void i40e_get_settings_link_up(struct i40e_hw *hw,
768 struct ethtool_link_ksettings *ks,
769 struct net_device *netdev,
772 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
773 struct ethtool_link_ksettings cap_ksettings;
774 u32 link_speed = hw_link_info->link_speed;
776 /* Initialize supported and advertised settings based on phy settings */
777 switch (hw_link_info->phy_type) {
778 case I40E_PHY_TYPE_40GBASE_CR4:
779 case I40E_PHY_TYPE_40GBASE_CR4_CU:
780 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
781 ethtool_link_ksettings_add_link_mode(ks, supported,
783 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
784 ethtool_link_ksettings_add_link_mode(ks, advertising,
787 case I40E_PHY_TYPE_XLAUI:
788 case I40E_PHY_TYPE_XLPPI:
789 case I40E_PHY_TYPE_40GBASE_AOC:
790 ethtool_link_ksettings_add_link_mode(ks, supported,
792 ethtool_link_ksettings_add_link_mode(ks, advertising,
795 case I40E_PHY_TYPE_40GBASE_SR4:
796 ethtool_link_ksettings_add_link_mode(ks, supported,
798 ethtool_link_ksettings_add_link_mode(ks, advertising,
801 case I40E_PHY_TYPE_40GBASE_LR4:
802 ethtool_link_ksettings_add_link_mode(ks, supported,
804 ethtool_link_ksettings_add_link_mode(ks, advertising,
807 case I40E_PHY_TYPE_25GBASE_SR:
808 case I40E_PHY_TYPE_25GBASE_LR:
809 case I40E_PHY_TYPE_10GBASE_SR:
810 case I40E_PHY_TYPE_10GBASE_LR:
811 case I40E_PHY_TYPE_1000BASE_SX:
812 case I40E_PHY_TYPE_1000BASE_LX:
813 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
814 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
815 ethtool_link_ksettings_add_link_mode(ks, supported,
817 ethtool_link_ksettings_add_link_mode(ks, advertising,
819 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
820 ethtool_link_ksettings_add_link_mode(ks, supported,
822 ethtool_link_ksettings_add_link_mode(ks, advertising,
824 ethtool_link_ksettings_add_link_mode(ks, supported,
826 ethtool_link_ksettings_add_link_mode(ks, advertising,
828 ethtool_link_ksettings_add_link_mode(ks, supported,
830 ethtool_link_ksettings_add_link_mode(ks, advertising,
832 ethtool_link_ksettings_add_link_mode(ks, supported,
834 if (hw_link_info->module_type[2] &
835 I40E_MODULE_TYPE_1000BASE_SX ||
836 hw_link_info->module_type[2] &
837 I40E_MODULE_TYPE_1000BASE_LX) {
838 ethtool_link_ksettings_add_link_mode(ks, supported,
840 if (hw_link_info->requested_speeds &
842 ethtool_link_ksettings_add_link_mode(
843 ks, advertising, 1000baseT_Full);
845 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
846 ethtool_link_ksettings_add_link_mode(ks, advertising,
849 case I40E_PHY_TYPE_10GBASE_T:
850 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS:
851 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS:
852 case I40E_PHY_TYPE_1000BASE_T:
853 case I40E_PHY_TYPE_100BASE_TX:
854 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
855 ethtool_link_ksettings_add_link_mode(ks, supported,
857 ethtool_link_ksettings_add_link_mode(ks, supported,
859 ethtool_link_ksettings_add_link_mode(ks, supported,
861 ethtool_link_ksettings_add_link_mode(ks, supported,
863 ethtool_link_ksettings_add_link_mode(ks, supported,
865 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
866 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
867 ethtool_link_ksettings_add_link_mode(ks, advertising,
869 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
870 ethtool_link_ksettings_add_link_mode(ks, advertising,
872 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
873 ethtool_link_ksettings_add_link_mode(ks, advertising,
875 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
876 ethtool_link_ksettings_add_link_mode(ks, advertising,
878 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
879 ethtool_link_ksettings_add_link_mode(ks, advertising,
882 case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
883 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
884 ethtool_link_ksettings_add_link_mode(ks, supported,
886 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
887 ethtool_link_ksettings_add_link_mode(ks, advertising,
890 case I40E_PHY_TYPE_10GBASE_CR1_CU:
891 case I40E_PHY_TYPE_10GBASE_CR1:
892 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
893 ethtool_link_ksettings_add_link_mode(ks, supported,
895 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
896 ethtool_link_ksettings_add_link_mode(ks, advertising,
899 case I40E_PHY_TYPE_XAUI:
900 case I40E_PHY_TYPE_XFI:
901 case I40E_PHY_TYPE_SFI:
902 case I40E_PHY_TYPE_10GBASE_SFPP_CU:
903 case I40E_PHY_TYPE_10GBASE_AOC:
904 ethtool_link_ksettings_add_link_mode(ks, supported,
906 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
907 ethtool_link_ksettings_add_link_mode(ks, advertising,
909 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
911 case I40E_PHY_TYPE_SGMII:
912 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
913 ethtool_link_ksettings_add_link_mode(ks, supported,
915 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
916 ethtool_link_ksettings_add_link_mode(ks, advertising,
918 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
919 ethtool_link_ksettings_add_link_mode(ks, supported,
921 if (hw_link_info->requested_speeds &
922 I40E_LINK_SPEED_100MB)
923 ethtool_link_ksettings_add_link_mode(
924 ks, advertising, 100baseT_Full);
927 case I40E_PHY_TYPE_40GBASE_KR4:
928 case I40E_PHY_TYPE_25GBASE_KR:
929 case I40E_PHY_TYPE_20GBASE_KR2:
930 case I40E_PHY_TYPE_10GBASE_KR:
931 case I40E_PHY_TYPE_10GBASE_KX4:
932 case I40E_PHY_TYPE_1000BASE_KX:
933 ethtool_link_ksettings_add_link_mode(ks, supported,
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,
941 ethtool_link_ksettings_add_link_mode(ks, supported,
943 ethtool_link_ksettings_add_link_mode(ks, supported,
945 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
946 ethtool_link_ksettings_add_link_mode(ks, advertising,
948 ethtool_link_ksettings_add_link_mode(ks, advertising,
950 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
951 ethtool_link_ksettings_add_link_mode(ks, advertising,
953 ethtool_link_ksettings_add_link_mode(ks, advertising,
955 ethtool_link_ksettings_add_link_mode(ks, advertising,
957 ethtool_link_ksettings_add_link_mode(ks, advertising,
959 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
961 case I40E_PHY_TYPE_25GBASE_CR:
962 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
963 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
964 ethtool_link_ksettings_add_link_mode(ks, supported,
966 ethtool_link_ksettings_add_link_mode(ks, advertising,
968 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
971 case I40E_PHY_TYPE_25GBASE_AOC:
972 case I40E_PHY_TYPE_25GBASE_ACC:
973 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
974 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
975 ethtool_link_ksettings_add_link_mode(ks, supported,
977 ethtool_link_ksettings_add_link_mode(ks, advertising,
979 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
981 ethtool_link_ksettings_add_link_mode(ks, supported,
983 ethtool_link_ksettings_add_link_mode(ks, advertising,
987 /* if we got here and link is up something bad is afoot */
989 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n",
990 hw_link_info->phy_type);
993 /* Now that we've worked out everything that could be supported by the
994 * current PHY type, get what is supported by the NVM and intersect
995 * them to get what is truly supported
997 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
998 i40e_phy_type_to_ethtool(pf, &cap_ksettings);
999 ethtool_intersect_link_masks(ks, &cap_ksettings);
1001 /* Set speed and duplex */
1002 switch (link_speed) {
1003 case I40E_LINK_SPEED_40GB:
1004 ks->base.speed = SPEED_40000;
1006 case I40E_LINK_SPEED_25GB:
1007 ks->base.speed = SPEED_25000;
1009 case I40E_LINK_SPEED_20GB:
1010 ks->base.speed = SPEED_20000;
1012 case I40E_LINK_SPEED_10GB:
1013 ks->base.speed = SPEED_10000;
1015 case I40E_LINK_SPEED_5GB:
1016 ks->base.speed = SPEED_5000;
1018 case I40E_LINK_SPEED_2_5GB:
1019 ks->base.speed = SPEED_2500;
1021 case I40E_LINK_SPEED_1GB:
1022 ks->base.speed = SPEED_1000;
1024 case I40E_LINK_SPEED_100MB:
1025 ks->base.speed = SPEED_100;
1028 ks->base.speed = SPEED_UNKNOWN;
1031 ks->base.duplex = DUPLEX_FULL;
1035 * i40e_get_settings_link_down - Get the Link settings for when link is down
1037 * @ks: ethtool ksettings to fill in
1038 * @pf: pointer to physical function struct
1040 * Reports link settings that can be determined when link is down
1042 static void i40e_get_settings_link_down(struct i40e_hw *hw,
1043 struct ethtool_link_ksettings *ks,
1046 /* link is down and the driver needs to fall back on
1047 * supported phy types to figure out what info to display
1049 i40e_phy_type_to_ethtool(pf, ks);
1051 /* With no link speed and duplex are unknown */
1052 ks->base.speed = SPEED_UNKNOWN;
1053 ks->base.duplex = DUPLEX_UNKNOWN;
1057 * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1058 * @netdev: network interface device structure
1059 * @ks: ethtool ksettings
1061 * Reports speed/duplex settings based on media_type
1063 static int i40e_get_link_ksettings(struct net_device *netdev,
1064 struct ethtool_link_ksettings *ks)
1066 struct i40e_netdev_priv *np = netdev_priv(netdev);
1067 struct i40e_pf *pf = np->vsi->back;
1068 struct i40e_hw *hw = &pf->hw;
1069 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1070 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1072 ethtool_link_ksettings_zero_link_mode(ks, supported);
1073 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1076 i40e_get_settings_link_up(hw, ks, netdev, pf);
1078 i40e_get_settings_link_down(hw, ks, pf);
1080 /* Now set the settings that don't rely on link being up/down */
1081 /* Set autoneg settings */
1082 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1083 AUTONEG_ENABLE : AUTONEG_DISABLE);
1085 /* Set media type settings */
1086 switch (hw->phy.media_type) {
1087 case I40E_MEDIA_TYPE_BACKPLANE:
1088 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1089 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1090 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1091 ethtool_link_ksettings_add_link_mode(ks, advertising,
1093 ks->base.port = PORT_NONE;
1095 case I40E_MEDIA_TYPE_BASET:
1096 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1097 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1098 ks->base.port = PORT_TP;
1100 case I40E_MEDIA_TYPE_DA:
1101 case I40E_MEDIA_TYPE_CX4:
1102 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1103 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1104 ks->base.port = PORT_DA;
1106 case I40E_MEDIA_TYPE_FIBER:
1107 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1108 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1109 ks->base.port = PORT_FIBRE;
1111 case I40E_MEDIA_TYPE_UNKNOWN:
1113 ks->base.port = PORT_OTHER;
1117 /* Set flow control settings */
1118 ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1119 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause);
1121 switch (hw->fc.requested_mode) {
1123 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1125 case I40E_FC_TX_PAUSE:
1126 ethtool_link_ksettings_add_link_mode(ks, advertising,
1129 case I40E_FC_RX_PAUSE:
1130 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1131 ethtool_link_ksettings_add_link_mode(ks, advertising,
1135 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1136 ethtool_link_ksettings_del_link_mode(ks, advertising,
1145 * i40e_set_link_ksettings - Set Speed and Duplex
1146 * @netdev: network interface device structure
1147 * @ks: ethtool ksettings
1149 * Set speed/duplex per media_types advertised/forced
1151 static int i40e_set_link_ksettings(struct net_device *netdev,
1152 const struct ethtool_link_ksettings *ks)
1154 struct i40e_netdev_priv *np = netdev_priv(netdev);
1155 struct i40e_aq_get_phy_abilities_resp abilities;
1156 struct ethtool_link_ksettings safe_ks;
1157 struct ethtool_link_ksettings copy_ks;
1158 struct i40e_aq_set_phy_config config;
1159 struct i40e_pf *pf = np->vsi->back;
1160 struct i40e_vsi *vsi = np->vsi;
1161 struct i40e_hw *hw = &pf->hw;
1162 bool autoneg_changed = false;
1163 i40e_status status = 0;
1168 /* Changing port settings is not supported if this isn't the
1169 * port's controlling PF
1171 if (hw->partition_id != 1) {
1172 i40e_partition_setting_complaint(pf);
1175 if (vsi != pf->vsi[pf->lan_vsi])
1177 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1178 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1179 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1180 hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1181 hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1183 if (hw->device_id == I40E_DEV_ID_KX_B ||
1184 hw->device_id == I40E_DEV_ID_KX_C ||
1185 hw->device_id == I40E_DEV_ID_20G_KR2 ||
1186 hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1187 hw->device_id == I40E_DEV_ID_25G_B ||
1188 hw->device_id == I40E_DEV_ID_KX_X722) {
1189 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1193 /* copy the ksettings to copy_ks to avoid modifying the origin */
1194 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings));
1196 /* save autoneg out of ksettings */
1197 autoneg = copy_ks.base.autoneg;
1199 /* get our own copy of the bits to check against */
1200 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1201 safe_ks.base.cmd = copy_ks.base.cmd;
1202 safe_ks.base.link_mode_masks_nwords =
1203 copy_ks.base.link_mode_masks_nwords;
1204 i40e_get_link_ksettings(netdev, &safe_ks);
1206 /* Get link modes supported by hardware and check against modes
1207 * requested by the user. Return an error if unsupported mode was set.
1209 if (!bitmap_subset(copy_ks.link_modes.advertising,
1210 safe_ks.link_modes.supported,
1211 __ETHTOOL_LINK_MODE_MASK_NBITS))
1214 /* set autoneg back to what it currently is */
1215 copy_ks.base.autoneg = safe_ks.base.autoneg;
1217 /* If copy_ks.base and safe_ks.base are not the same now, then they are
1218 * trying to set something that we do not support.
1220 if (memcmp(©_ks.base, &safe_ks.base,
1221 sizeof(struct ethtool_link_settings)))
1224 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1228 usleep_range(1000, 2000);
1231 /* Get the current phy config */
1232 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1239 /* Copy abilities to config in case autoneg is not
1242 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1243 config.abilities = abilities.abilities;
1246 if (autoneg == AUTONEG_ENABLE) {
1247 /* If autoneg was not already enabled */
1248 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1249 /* If autoneg is not supported, return error */
1250 if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1253 netdev_info(netdev, "Autoneg not supported on this phy\n");
1257 /* Autoneg is allowed to change */
1258 config.abilities = abilities.abilities |
1259 I40E_AQ_PHY_ENABLE_AN;
1260 autoneg_changed = true;
1263 /* If autoneg is currently enabled */
1264 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1265 /* If autoneg is supported 10GBASE_T is the only PHY
1266 * that can disable it, so otherwise return error
1268 if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1271 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
1272 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1276 /* Autoneg is allowed to change */
1277 config.abilities = abilities.abilities &
1278 ~I40E_AQ_PHY_ENABLE_AN;
1279 autoneg_changed = true;
1283 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1285 config.link_speed |= I40E_LINK_SPEED_100MB;
1286 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1288 ethtool_link_ksettings_test_link_mode(ks, advertising,
1290 ethtool_link_ksettings_test_link_mode(ks, advertising,
1292 config.link_speed |= I40E_LINK_SPEED_1GB;
1293 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1295 ethtool_link_ksettings_test_link_mode(ks, advertising,
1296 10000baseKX4_Full) ||
1297 ethtool_link_ksettings_test_link_mode(ks, advertising,
1298 10000baseKR_Full) ||
1299 ethtool_link_ksettings_test_link_mode(ks, advertising,
1300 10000baseCR_Full) ||
1301 ethtool_link_ksettings_test_link_mode(ks, advertising,
1302 10000baseSR_Full) ||
1303 ethtool_link_ksettings_test_link_mode(ks, advertising,
1305 config.link_speed |= I40E_LINK_SPEED_10GB;
1306 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1308 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1309 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1311 config.link_speed |= I40E_LINK_SPEED_5GB;
1312 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1314 config.link_speed |= I40E_LINK_SPEED_20GB;
1315 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1316 25000baseCR_Full) ||
1317 ethtool_link_ksettings_test_link_mode(ks, advertising,
1318 25000baseKR_Full) ||
1319 ethtool_link_ksettings_test_link_mode(ks, advertising,
1321 config.link_speed |= I40E_LINK_SPEED_25GB;
1322 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1323 40000baseKR4_Full) ||
1324 ethtool_link_ksettings_test_link_mode(ks, advertising,
1325 40000baseCR4_Full) ||
1326 ethtool_link_ksettings_test_link_mode(ks, advertising,
1327 40000baseSR4_Full) ||
1328 ethtool_link_ksettings_test_link_mode(ks, advertising,
1330 config.link_speed |= I40E_LINK_SPEED_40GB;
1332 /* If speed didn't get set, set it to what it currently is.
1333 * This is needed because if advertise is 0 (as it is when autoneg
1334 * is disabled) then speed won't get set.
1336 if (!config.link_speed)
1337 config.link_speed = abilities.link_speed;
1338 if (autoneg_changed || abilities.link_speed != config.link_speed) {
1339 /* copy over the rest of the abilities */
1340 config.phy_type = abilities.phy_type;
1341 config.phy_type_ext = abilities.phy_type_ext;
1342 config.eee_capability = abilities.eee_capability;
1343 config.eeer = abilities.eeer_val;
1344 config.low_power_ctrl = abilities.d3_lpan;
1345 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1346 I40E_AQ_PHY_FEC_CONFIG_MASK;
1348 /* save the requested speeds */
1349 hw->phy.link_info.requested_speeds = config.link_speed;
1350 /* set link and auto negotiation so changes take effect */
1351 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1352 /* If link is up put link down */
1353 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1354 /* Tell the OS link is going down, the link will go
1355 * back up when fw says it is ready asynchronously
1357 i40e_print_link_message(vsi, false);
1358 netif_carrier_off(netdev);
1359 netif_tx_stop_all_queues(netdev);
1362 /* make the aq call */
1363 status = i40e_aq_set_phy_config(hw, &config, NULL);
1366 "Set phy config failed, err %s aq_err %s\n",
1367 i40e_stat_str(hw, status),
1368 i40e_aq_str(hw, hw->aq.asq_last_status));
1373 status = i40e_update_link_info(hw);
1376 "Updating link info failed with err %s aq_err %s\n",
1377 i40e_stat_str(hw, status),
1378 i40e_aq_str(hw, hw->aq.asq_last_status));
1381 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1385 clear_bit(__I40E_CONFIG_BUSY, pf->state);
1390 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1392 struct i40e_netdev_priv *np = netdev_priv(netdev);
1393 struct i40e_aq_get_phy_abilities_resp abilities;
1394 struct i40e_pf *pf = np->vsi->back;
1395 struct i40e_hw *hw = &pf->hw;
1396 i40e_status status = 0;
1400 flags = READ_ONCE(pf->flags);
1401 i40e_set_fec_in_flags(fec_cfg, &flags);
1403 /* Get the current phy config */
1404 memset(&abilities, 0, sizeof(abilities));
1405 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1412 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1413 struct i40e_aq_set_phy_config config;
1415 memset(&config, 0, sizeof(config));
1416 config.phy_type = abilities.phy_type;
1417 config.abilities = abilities.abilities |
1418 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1419 config.phy_type_ext = abilities.phy_type_ext;
1420 config.link_speed = abilities.link_speed;
1421 config.eee_capability = abilities.eee_capability;
1422 config.eeer = abilities.eeer_val;
1423 config.low_power_ctrl = abilities.d3_lpan;
1424 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1425 status = i40e_aq_set_phy_config(hw, &config, NULL);
1428 "Set phy config failed, err %s aq_err %s\n",
1429 i40e_stat_str(hw, status),
1430 i40e_aq_str(hw, hw->aq.asq_last_status));
1435 status = i40e_update_link_info(hw);
1437 /* debug level message only due to relation to the link
1438 * itself rather than to the FEC settings
1439 * (e.g. no physical connection etc.)
1442 "Updating link info failed with err %s aq_err %s\n",
1443 i40e_stat_str(hw, status),
1444 i40e_aq_str(hw, hw->aq.asq_last_status));
1451 static int i40e_get_fec_param(struct net_device *netdev,
1452 struct ethtool_fecparam *fecparam)
1454 struct i40e_netdev_priv *np = netdev_priv(netdev);
1455 struct i40e_aq_get_phy_abilities_resp abilities;
1456 struct i40e_pf *pf = np->vsi->back;
1457 struct i40e_hw *hw = &pf->hw;
1458 i40e_status status = 0;
1462 /* Get the current phy config */
1463 memset(&abilities, 0, sizeof(abilities));
1464 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1472 fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1473 if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1474 fecparam->fec |= ETHTOOL_FEC_AUTO;
1475 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1476 I40E_AQ_SET_FEC_ABILITY_RS))
1477 fecparam->fec |= ETHTOOL_FEC_RS;
1478 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1479 I40E_AQ_SET_FEC_ABILITY_KR))
1480 fecparam->fec |= ETHTOOL_FEC_BASER;
1482 fecparam->fec |= ETHTOOL_FEC_OFF;
1484 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1485 fecparam->active_fec = ETHTOOL_FEC_BASER;
1486 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1487 fecparam->active_fec = ETHTOOL_FEC_RS;
1489 fecparam->active_fec = ETHTOOL_FEC_OFF;
1494 static int i40e_set_fec_param(struct net_device *netdev,
1495 struct ethtool_fecparam *fecparam)
1497 struct i40e_netdev_priv *np = netdev_priv(netdev);
1498 struct i40e_pf *pf = np->vsi->back;
1499 struct i40e_hw *hw = &pf->hw;
1502 if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1503 hw->device_id != I40E_DEV_ID_25G_B &&
1504 hw->device_id != I40E_DEV_ID_KX_X722)
1507 if (hw->mac.type == I40E_MAC_X722 &&
1508 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) {
1509 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1513 switch (fecparam->fec) {
1514 case ETHTOOL_FEC_AUTO:
1515 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1517 case ETHTOOL_FEC_RS:
1518 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1519 I40E_AQ_SET_FEC_ABILITY_RS);
1521 case ETHTOOL_FEC_BASER:
1522 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1523 I40E_AQ_SET_FEC_ABILITY_KR);
1525 case ETHTOOL_FEC_OFF:
1526 case ETHTOOL_FEC_NONE:
1530 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1535 return i40e_set_fec_cfg(netdev, fec_cfg);
1538 static int i40e_nway_reset(struct net_device *netdev)
1540 /* restart autonegotiation */
1541 struct i40e_netdev_priv *np = netdev_priv(netdev);
1542 struct i40e_pf *pf = np->vsi->back;
1543 struct i40e_hw *hw = &pf->hw;
1544 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1545 i40e_status ret = 0;
1547 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1549 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1550 i40e_stat_str(hw, ret),
1551 i40e_aq_str(hw, hw->aq.asq_last_status));
1559 * i40e_get_pauseparam - Get Flow Control status
1560 * @netdev: netdevice structure
1561 * @pause: buffer to return pause parameters
1563 * Return tx/rx-pause status
1565 static void i40e_get_pauseparam(struct net_device *netdev,
1566 struct ethtool_pauseparam *pause)
1568 struct i40e_netdev_priv *np = netdev_priv(netdev);
1569 struct i40e_pf *pf = np->vsi->back;
1570 struct i40e_hw *hw = &pf->hw;
1571 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1572 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1575 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1576 AUTONEG_ENABLE : AUTONEG_DISABLE);
1578 /* PFC enabled so report LFC as off */
1579 if (dcbx_cfg->pfc.pfcenable) {
1580 pause->rx_pause = 0;
1581 pause->tx_pause = 0;
1585 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1586 pause->rx_pause = 1;
1587 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1588 pause->tx_pause = 1;
1589 } else if (hw->fc.current_mode == I40E_FC_FULL) {
1590 pause->rx_pause = 1;
1591 pause->tx_pause = 1;
1596 * i40e_set_pauseparam - Set Flow Control parameter
1597 * @netdev: network interface device structure
1598 * @pause: return tx/rx flow control status
1600 static int i40e_set_pauseparam(struct net_device *netdev,
1601 struct ethtool_pauseparam *pause)
1603 struct i40e_netdev_priv *np = netdev_priv(netdev);
1604 struct i40e_pf *pf = np->vsi->back;
1605 struct i40e_vsi *vsi = np->vsi;
1606 struct i40e_hw *hw = &pf->hw;
1607 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1608 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1609 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1615 /* Changing the port's flow control is not supported if this isn't the
1616 * port's controlling PF
1618 if (hw->partition_id != 1) {
1619 i40e_partition_setting_complaint(pf);
1623 if (vsi != pf->vsi[pf->lan_vsi])
1626 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1627 if (pause->autoneg != is_an) {
1628 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1632 /* If we have link and don't have autoneg */
1633 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1634 /* Send message that it might not necessarily work*/
1635 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1638 if (dcbx_cfg->pfc.pfcenable) {
1640 "Priority flow control enabled. Cannot set link flow control.\n");
1644 if (pause->rx_pause && pause->tx_pause)
1645 hw->fc.requested_mode = I40E_FC_FULL;
1646 else if (pause->rx_pause && !pause->tx_pause)
1647 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1648 else if (!pause->rx_pause && pause->tx_pause)
1649 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1650 else if (!pause->rx_pause && !pause->tx_pause)
1651 hw->fc.requested_mode = I40E_FC_NONE;
1655 /* Tell the OS link is going down, the link will go back up when fw
1656 * says it is ready asynchronously
1658 i40e_print_link_message(vsi, false);
1659 netif_carrier_off(netdev);
1660 netif_tx_stop_all_queues(netdev);
1662 /* Set the fc mode and only restart an if link is up*/
1663 status = i40e_set_fc(hw, &aq_failures, link_up);
1665 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1666 netdev_info(netdev, "Set fc failed on the get_phy_capabilities 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_SET) {
1672 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1673 i40e_stat_str(hw, status),
1674 i40e_aq_str(hw, hw->aq.asq_last_status));
1677 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1678 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1679 i40e_stat_str(hw, status),
1680 i40e_aq_str(hw, hw->aq.asq_last_status));
1684 if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1685 /* Give it a little more time to try to come back */
1687 if (!test_bit(__I40E_DOWN, pf->state))
1688 return i40e_nway_reset(netdev);
1694 static u32 i40e_get_msglevel(struct net_device *netdev)
1696 struct i40e_netdev_priv *np = netdev_priv(netdev);
1697 struct i40e_pf *pf = np->vsi->back;
1698 u32 debug_mask = pf->hw.debug_mask;
1701 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1703 return pf->msg_enable;
1706 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1708 struct i40e_netdev_priv *np = netdev_priv(netdev);
1709 struct i40e_pf *pf = np->vsi->back;
1711 if (I40E_DEBUG_USER & data)
1712 pf->hw.debug_mask = data;
1714 pf->msg_enable = data;
1717 static int i40e_get_regs_len(struct net_device *netdev)
1722 for (i = 0; i40e_reg_list[i].offset != 0; i++)
1723 reg_count += i40e_reg_list[i].elements;
1725 return reg_count * sizeof(u32);
1728 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1731 struct i40e_netdev_priv *np = netdev_priv(netdev);
1732 struct i40e_pf *pf = np->vsi->back;
1733 struct i40e_hw *hw = &pf->hw;
1735 unsigned int i, j, ri;
1738 /* Tell ethtool which driver-version-specific regs output we have.
1740 * At some point, if we have ethtool doing special formatting of
1741 * this data, it will rely on this version number to know how to
1742 * interpret things. Hence, this needs to be updated if/when the
1743 * diags register table is changed.
1747 /* loop through the diags reg table for what to print */
1749 for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1750 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1751 reg = i40e_reg_list[i].offset
1752 + (j * i40e_reg_list[i].stride);
1753 reg_buf[ri++] = rd32(hw, reg);
1759 static int i40e_get_eeprom(struct net_device *netdev,
1760 struct ethtool_eeprom *eeprom, u8 *bytes)
1762 struct i40e_netdev_priv *np = netdev_priv(netdev);
1763 struct i40e_hw *hw = &np->vsi->back->hw;
1764 struct i40e_pf *pf = np->vsi->back;
1765 int ret_val = 0, len, offset;
1771 #define I40E_NVM_SECTOR_SIZE 4096
1772 if (eeprom->len == 0)
1775 /* check for NVMUpdate access method */
1776 magic = hw->vendor_id | (hw->device_id << 16);
1777 if (eeprom->magic && eeprom->magic != magic) {
1778 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1781 /* make sure it is the right magic for NVMUpdate */
1782 if ((eeprom->magic >> 16) != hw->device_id)
1784 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1785 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1788 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1790 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1791 dev_info(&pf->pdev->dev,
1792 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1793 ret_val, hw->aq.asq_last_status, errno,
1794 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1795 cmd->offset, cmd->data_size);
1800 /* normal ethtool get_eeprom support */
1801 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1803 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1807 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1809 dev_info(&pf->pdev->dev,
1810 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1811 ret_val, hw->aq.asq_last_status);
1815 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1816 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1817 len = I40E_NVM_SECTOR_SIZE;
1819 for (i = 0; i < sectors; i++) {
1820 if (i == (sectors - 1)) {
1821 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1824 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1825 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1826 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1828 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1829 dev_info(&pf->pdev->dev,
1830 "read NVM failed, invalid offset 0x%x\n",
1833 } else if (ret_val &&
1834 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1835 dev_info(&pf->pdev->dev,
1836 "read NVM failed, access, offset 0x%x\n",
1839 } else if (ret_val) {
1840 dev_info(&pf->pdev->dev,
1841 "read NVM failed offset %d err=%d status=0x%x\n",
1842 offset, ret_val, hw->aq.asq_last_status);
1847 i40e_release_nvm(hw);
1848 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1854 static int i40e_get_eeprom_len(struct net_device *netdev)
1856 struct i40e_netdev_priv *np = netdev_priv(netdev);
1857 struct i40e_hw *hw = &np->vsi->back->hw;
1860 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1861 if (hw->mac.type == I40E_MAC_X722) {
1862 val = X722_EEPROM_SCOPE_LIMIT + 1;
1865 val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1866 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1867 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1868 /* register returns value in power of 2, 64Kbyte chunks. */
1869 val = (64 * 1024) * BIT(val);
1873 static int i40e_set_eeprom(struct net_device *netdev,
1874 struct ethtool_eeprom *eeprom, u8 *bytes)
1876 struct i40e_netdev_priv *np = netdev_priv(netdev);
1877 struct i40e_hw *hw = &np->vsi->back->hw;
1878 struct i40e_pf *pf = np->vsi->back;
1879 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1884 /* normal ethtool set_eeprom is not supported */
1885 magic = hw->vendor_id | (hw->device_id << 16);
1886 if (eeprom->magic == magic)
1887 errno = -EOPNOTSUPP;
1888 /* check for NVMUpdate access method */
1889 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1891 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1892 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1895 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1897 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1898 dev_info(&pf->pdev->dev,
1899 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1900 ret_val, hw->aq.asq_last_status, errno,
1901 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1902 cmd->offset, cmd->data_size);
1907 static void i40e_get_drvinfo(struct net_device *netdev,
1908 struct ethtool_drvinfo *drvinfo)
1910 struct i40e_netdev_priv *np = netdev_priv(netdev);
1911 struct i40e_vsi *vsi = np->vsi;
1912 struct i40e_pf *pf = vsi->back;
1914 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1915 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1916 sizeof(drvinfo->fw_version));
1917 strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1918 sizeof(drvinfo->bus_info));
1919 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1920 if (pf->hw.pf_id == 0)
1921 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1924 static void i40e_get_ringparam(struct net_device *netdev,
1925 struct ethtool_ringparam *ring,
1926 struct kernel_ethtool_ringparam *kernel_ring,
1927 struct netlink_ext_ack *extack)
1929 struct i40e_netdev_priv *np = netdev_priv(netdev);
1930 struct i40e_pf *pf = np->vsi->back;
1931 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1933 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1934 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1935 ring->rx_mini_max_pending = 0;
1936 ring->rx_jumbo_max_pending = 0;
1937 ring->rx_pending = vsi->rx_rings[0]->count;
1938 ring->tx_pending = vsi->tx_rings[0]->count;
1939 ring->rx_mini_pending = 0;
1940 ring->rx_jumbo_pending = 0;
1943 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1945 if (i40e_enabled_xdp_vsi(vsi)) {
1946 return index < vsi->num_queue_pairs ||
1947 (index >= vsi->alloc_queue_pairs &&
1948 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1951 return index < vsi->num_queue_pairs;
1954 static int i40e_set_ringparam(struct net_device *netdev,
1955 struct ethtool_ringparam *ring,
1956 struct kernel_ethtool_ringparam *kernel_ring,
1957 struct netlink_ext_ack *extack)
1959 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1960 struct i40e_netdev_priv *np = netdev_priv(netdev);
1961 struct i40e_hw *hw = &np->vsi->back->hw;
1962 struct i40e_vsi *vsi = np->vsi;
1963 struct i40e_pf *pf = vsi->back;
1964 u32 new_rx_count, new_tx_count;
1965 u16 tx_alloc_queue_pairs;
1969 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1972 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1973 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1974 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1975 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1977 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1978 ring->tx_pending, ring->rx_pending,
1979 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1983 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1984 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1986 /* if nothing to do return success */
1987 if ((new_tx_count == vsi->tx_rings[0]->count) &&
1988 (new_rx_count == vsi->rx_rings[0]->count))
1991 /* If there is a AF_XDP page pool attached to any of Rx rings,
1992 * disallow changing the number of descriptors -- regardless
1993 * if the netdev is running or not.
1995 if (i40e_xsk_any_rx_ring_enabled(vsi))
1998 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
2002 usleep_range(1000, 2000);
2005 if (!netif_running(vsi->netdev)) {
2006 /* simple case - set for the next time the netdev is started */
2007 for (i = 0; i < vsi->num_queue_pairs; i++) {
2008 vsi->tx_rings[i]->count = new_tx_count;
2009 vsi->rx_rings[i]->count = new_rx_count;
2010 if (i40e_enabled_xdp_vsi(vsi))
2011 vsi->xdp_rings[i]->count = new_tx_count;
2013 vsi->num_tx_desc = new_tx_count;
2014 vsi->num_rx_desc = new_rx_count;
2018 /* We can't just free everything and then setup again,
2019 * because the ISRs in MSI-X mode get passed pointers
2020 * to the Tx and Rx ring structs.
2023 /* alloc updated Tx and XDP Tx resources */
2024 tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2025 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2026 if (new_tx_count != vsi->tx_rings[0]->count) {
2028 "Changing Tx descriptor count from %d to %d.\n",
2029 vsi->tx_rings[0]->count, new_tx_count);
2030 tx_rings = kcalloc(tx_alloc_queue_pairs,
2031 sizeof(struct i40e_ring), GFP_KERNEL);
2037 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2038 if (!i40e_active_tx_ring_index(vsi, i))
2041 tx_rings[i] = *vsi->tx_rings[i];
2042 tx_rings[i].count = new_tx_count;
2043 /* the desc and bi pointers will be reallocated in the
2046 tx_rings[i].desc = NULL;
2047 tx_rings[i].rx_bi = NULL;
2048 err = i40e_setup_tx_descriptors(&tx_rings[i]);
2052 if (!i40e_active_tx_ring_index(vsi, i))
2054 i40e_free_tx_resources(&tx_rings[i]);
2064 /* alloc updated Rx resources */
2065 if (new_rx_count != vsi->rx_rings[0]->count) {
2067 "Changing Rx descriptor count from %d to %d\n",
2068 vsi->rx_rings[0]->count, new_rx_count);
2069 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2070 sizeof(struct i40e_ring), GFP_KERNEL);
2076 for (i = 0; i < vsi->num_queue_pairs; i++) {
2079 /* clone ring and setup updated count */
2080 rx_rings[i] = *vsi->rx_rings[i];
2081 rx_rings[i].count = new_rx_count;
2082 /* the desc and bi pointers will be reallocated in the
2085 rx_rings[i].desc = NULL;
2086 rx_rings[i].rx_bi = NULL;
2087 /* Clear cloned XDP RX-queue info before setup call */
2088 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2089 /* this is to allow wr32 to have something to write to
2090 * during early allocation of Rx buffers
2092 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2093 err = i40e_setup_rx_descriptors(&rx_rings[i]);
2096 err = i40e_alloc_rx_bi(&rx_rings[i]);
2100 /* now allocate the Rx buffers to make sure the OS
2101 * has enough memory, any failure here means abort
2103 unused = I40E_DESC_UNUSED(&rx_rings[i]);
2104 err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2108 i40e_free_rx_resources(&rx_rings[i]);
2118 /* Bring interface down, copy in the new ring info,
2119 * then restore the interface
2124 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2125 if (i40e_active_tx_ring_index(vsi, i)) {
2126 i40e_free_tx_resources(vsi->tx_rings[i]);
2127 *vsi->tx_rings[i] = tx_rings[i];
2135 for (i = 0; i < vsi->num_queue_pairs; i++) {
2136 i40e_free_rx_resources(vsi->rx_rings[i]);
2137 /* get the real tail offset */
2138 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2139 /* this is to fake out the allocation routine
2140 * into thinking it has to realloc everything
2141 * but the recycling logic will let us re-use
2142 * the buffers allocated above
2144 rx_rings[i].next_to_use = 0;
2145 rx_rings[i].next_to_clean = 0;
2146 rx_rings[i].next_to_alloc = 0;
2147 /* do a struct copy */
2148 *vsi->rx_rings[i] = rx_rings[i];
2154 vsi->num_tx_desc = new_tx_count;
2155 vsi->num_rx_desc = new_rx_count;
2159 /* error cleanup if the Rx allocations failed after getting Tx */
2161 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2162 if (i40e_active_tx_ring_index(vsi, i))
2163 i40e_free_tx_resources(vsi->tx_rings[i]);
2170 clear_bit(__I40E_CONFIG_BUSY, pf->state);
2176 * i40e_get_stats_count - return the stats count for a device
2177 * @netdev: the netdev to return the count for
2179 * Returns the total number of statistics for this netdev. Note that even
2180 * though this is a function, it is required that the count for a specific
2181 * netdev must never change. Basing the count on static values such as the
2182 * maximum number of queues or the device type is ok. However, the API for
2183 * obtaining stats is *not* safe against changes based on non-static
2184 * values such as the *current* number of queues, or runtime flags.
2186 * If a statistic is not always enabled, return it as part of the count
2187 * anyways, always return its string, and report its value as zero.
2189 static int i40e_get_stats_count(struct net_device *netdev)
2191 struct i40e_netdev_priv *np = netdev_priv(netdev);
2192 struct i40e_vsi *vsi = np->vsi;
2193 struct i40e_pf *pf = vsi->back;
2196 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2197 stats_len = I40E_PF_STATS_LEN;
2199 stats_len = I40E_VSI_STATS_LEN;
2201 /* The number of stats reported for a given net_device must remain
2202 * constant throughout the life of that device.
2204 * This is because the API for obtaining the size, strings, and stats
2205 * is spread out over three separate ethtool ioctls. There is no safe
2206 * way to lock the number of stats across these calls, so we must
2207 * assume that they will never change.
2209 * Due to this, we report the maximum number of queues, even if not
2210 * every queue is currently configured. Since we always allocate
2211 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2212 * works because the num_tx_queues is set at device creation and never
2215 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2220 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2222 struct i40e_netdev_priv *np = netdev_priv(netdev);
2223 struct i40e_vsi *vsi = np->vsi;
2224 struct i40e_pf *pf = vsi->back;
2228 return I40E_TEST_LEN;
2230 return i40e_get_stats_count(netdev);
2231 case ETH_SS_PRIV_FLAGS:
2232 return I40E_PRIV_FLAGS_STR_LEN +
2233 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2240 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure
2241 * @tc: the TC statistics in VEB structure (veb->tc_stats)
2242 * @i: the index of traffic class in (veb->tc_stats) structure to copy
2244 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to
2245 * one dimensional structure i40e_cp_veb_tc_stats.
2246 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC
2247 * statistics for the given TC.
2249 static struct i40e_cp_veb_tc_stats
2250 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i)
2252 struct i40e_cp_veb_tc_stats veb_tc = {
2253 .tc_rx_packets = tc->tc_rx_packets[i],
2254 .tc_rx_bytes = tc->tc_rx_bytes[i],
2255 .tc_tx_packets = tc->tc_tx_packets[i],
2256 .tc_tx_bytes = tc->tc_tx_bytes[i],
2263 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2264 * @pf: the PF device structure
2265 * @i: the priority value to copy
2267 * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2268 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2269 * of the PFC stats for the given priority.
2271 static inline struct i40e_pfc_stats
2272 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2274 #define I40E_GET_PFC_STAT(stat, priority) \
2275 .stat = pf->stats.stat[priority]
2277 struct i40e_pfc_stats pfc = {
2278 I40E_GET_PFC_STAT(priority_xon_rx, i),
2279 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2280 I40E_GET_PFC_STAT(priority_xon_tx, i),
2281 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2282 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2288 * i40e_get_ethtool_stats - copy stat values into supplied buffer
2289 * @netdev: the netdev to collect stats for
2290 * @stats: ethtool stats command structure
2291 * @data: ethtool supplied buffer
2293 * Copy the stats values for this netdev into the buffer. Expects data to be
2294 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2295 * statistics must be copied in a static order, and the count must not change
2296 * for a given netdev. See i40e_get_stats_count for more details.
2298 * If a statistic is not currently valid (such as a disabled queue), this
2299 * function reports its value as zero.
2301 static void i40e_get_ethtool_stats(struct net_device *netdev,
2302 struct ethtool_stats *stats, u64 *data)
2304 struct i40e_netdev_priv *np = netdev_priv(netdev);
2305 struct i40e_vsi *vsi = np->vsi;
2306 struct i40e_pf *pf = vsi->back;
2307 struct i40e_veb *veb = NULL;
2312 i40e_update_stats(vsi);
2314 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2315 i40e_gstrings_net_stats);
2317 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2320 for (i = 0; i < netdev->num_tx_queues; i++) {
2321 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2322 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2326 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2327 goto check_data_pointer;
2329 veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2330 (pf->lan_veb < I40E_MAX_VEB) &&
2331 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2334 veb = pf->veb[pf->lan_veb];
2335 i40e_update_veb_stats(veb);
2338 /* If veb stats aren't enabled, pass NULL instead of the veb so that
2339 * we initialize stats to zero and update the data pointer
2342 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2343 i40e_gstrings_veb_stats);
2345 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2347 struct i40e_cp_veb_tc_stats veb_tc =
2348 i40e_get_veb_tc_stats(&veb->tc_stats, i);
2350 i40e_add_ethtool_stats(&data, &veb_tc,
2351 i40e_gstrings_veb_tc_stats);
2353 i40e_add_ethtool_stats(&data, NULL,
2354 i40e_gstrings_veb_tc_stats);
2357 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2359 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2360 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2362 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2366 WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2367 "ethtool stats count mismatch!");
2371 * i40e_get_stat_strings - copy stat strings into supplied buffer
2372 * @netdev: the netdev to collect strings for
2373 * @data: supplied buffer to copy strings into
2375 * Copy the strings related to stats for this netdev. Expects data to be
2376 * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2377 * strings must be copied in a static order and the total count must not
2378 * change for a given netdev. See i40e_get_stats_count for more details.
2380 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2382 struct i40e_netdev_priv *np = netdev_priv(netdev);
2383 struct i40e_vsi *vsi = np->vsi;
2384 struct i40e_pf *pf = vsi->back;
2388 i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2390 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2392 for (i = 0; i < netdev->num_tx_queues; i++) {
2393 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2395 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2399 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2400 goto check_data_pointer;
2402 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2404 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2405 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2407 i40e_add_stat_strings(&data, i40e_gstrings_stats);
2409 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2410 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2413 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2414 "stat strings count mismatch!");
2417 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2419 struct i40e_netdev_priv *np = netdev_priv(netdev);
2420 struct i40e_vsi *vsi = np->vsi;
2421 struct i40e_pf *pf = vsi->back;
2425 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++)
2426 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string);
2427 if (pf->hw.pf_id != 0)
2429 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++)
2430 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string);
2433 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2436 switch (stringset) {
2438 memcpy(data, i40e_gstrings_test,
2439 I40E_TEST_LEN * ETH_GSTRING_LEN);
2442 i40e_get_stat_strings(netdev, data);
2444 case ETH_SS_PRIV_FLAGS:
2445 i40e_get_priv_flag_strings(netdev, data);
2452 static int i40e_get_ts_info(struct net_device *dev,
2453 struct ethtool_ts_info *info)
2455 struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2457 /* only report HW timestamping if PTP is enabled */
2458 if (!(pf->flags & I40E_FLAG_PTP))
2459 return ethtool_op_get_ts_info(dev, info);
2461 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2462 SOF_TIMESTAMPING_RX_SOFTWARE |
2463 SOF_TIMESTAMPING_SOFTWARE |
2464 SOF_TIMESTAMPING_TX_HARDWARE |
2465 SOF_TIMESTAMPING_RX_HARDWARE |
2466 SOF_TIMESTAMPING_RAW_HARDWARE;
2469 info->phc_index = ptp_clock_index(pf->ptp_clock);
2471 info->phc_index = -1;
2473 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2475 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2476 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2477 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2478 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2480 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2481 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2482 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2483 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2484 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2485 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2486 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2487 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2488 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2493 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2495 struct i40e_netdev_priv *np = netdev_priv(netdev);
2496 struct i40e_pf *pf = np->vsi->back;
2498 bool link_up = false;
2500 netif_info(pf, hw, netdev, "link test\n");
2501 status = i40e_get_link_status(&pf->hw, &link_up);
2503 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2516 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2518 struct i40e_netdev_priv *np = netdev_priv(netdev);
2519 struct i40e_pf *pf = np->vsi->back;
2521 netif_info(pf, hw, netdev, "register test\n");
2522 *data = i40e_diag_reg_test(&pf->hw);
2527 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2529 struct i40e_netdev_priv *np = netdev_priv(netdev);
2530 struct i40e_pf *pf = np->vsi->back;
2532 netif_info(pf, hw, netdev, "eeprom test\n");
2533 *data = i40e_diag_eeprom_test(&pf->hw);
2535 /* forcebly clear the NVM Update state machine */
2536 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2541 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2543 struct i40e_netdev_priv *np = netdev_priv(netdev);
2544 struct i40e_pf *pf = np->vsi->back;
2545 u16 swc_old = pf->sw_int_count;
2547 netif_info(pf, hw, netdev, "interrupt test\n");
2548 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2549 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2550 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2551 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2552 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2553 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2554 usleep_range(1000, 2000);
2555 *data = (swc_old == pf->sw_int_count);
2560 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2562 struct i40e_vf *vfs = pf->vf;
2565 for (i = 0; i < pf->num_alloc_vfs; i++)
2566 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2571 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2573 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2576 static void i40e_diag_test(struct net_device *netdev,
2577 struct ethtool_test *eth_test, u64 *data)
2579 struct i40e_netdev_priv *np = netdev_priv(netdev);
2580 bool if_running = netif_running(netdev);
2581 struct i40e_pf *pf = np->vsi->back;
2583 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2585 netif_info(pf, drv, netdev, "offline testing starting\n");
2587 set_bit(__I40E_TESTING, pf->state);
2589 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
2590 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) {
2591 dev_warn(&pf->pdev->dev,
2592 "Cannot start offline testing when PF is in reset state.\n");
2596 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2597 dev_warn(&pf->pdev->dev,
2598 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2602 /* If the device is online then take it offline */
2604 /* indicate we're in test mode */
2607 /* This reset does not affect link - if it is
2608 * changed to a type of reset that does affect
2609 * link then the following link test would have
2610 * to be moved to before the reset
2612 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2614 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2615 eth_test->flags |= ETH_TEST_FL_FAILED;
2617 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2618 eth_test->flags |= ETH_TEST_FL_FAILED;
2620 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2621 eth_test->flags |= ETH_TEST_FL_FAILED;
2623 /* run reg test last, a reset is required after it */
2624 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2625 eth_test->flags |= ETH_TEST_FL_FAILED;
2627 clear_bit(__I40E_TESTING, pf->state);
2628 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2634 netif_info(pf, drv, netdev, "online testing starting\n");
2636 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2637 eth_test->flags |= ETH_TEST_FL_FAILED;
2639 /* Offline only tests, not run in online; pass by default */
2640 data[I40E_ETH_TEST_REG] = 0;
2641 data[I40E_ETH_TEST_EEPROM] = 0;
2642 data[I40E_ETH_TEST_INTR] = 0;
2645 netif_info(pf, drv, netdev, "testing finished\n");
2649 data[I40E_ETH_TEST_REG] = 1;
2650 data[I40E_ETH_TEST_EEPROM] = 1;
2651 data[I40E_ETH_TEST_INTR] = 1;
2652 data[I40E_ETH_TEST_LINK] = 1;
2653 eth_test->flags |= ETH_TEST_FL_FAILED;
2654 clear_bit(__I40E_TESTING, pf->state);
2655 netif_info(pf, drv, netdev, "testing failed\n");
2658 static void i40e_get_wol(struct net_device *netdev,
2659 struct ethtool_wolinfo *wol)
2661 struct i40e_netdev_priv *np = netdev_priv(netdev);
2662 struct i40e_pf *pf = np->vsi->back;
2663 struct i40e_hw *hw = &pf->hw;
2666 /* NVM bit on means WoL disabled for the port */
2667 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2668 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2672 wol->supported = WAKE_MAGIC;
2673 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2678 * i40e_set_wol - set the WakeOnLAN configuration
2679 * @netdev: the netdev in question
2680 * @wol: the ethtool WoL setting data
2682 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2684 struct i40e_netdev_priv *np = netdev_priv(netdev);
2685 struct i40e_pf *pf = np->vsi->back;
2686 struct i40e_vsi *vsi = np->vsi;
2687 struct i40e_hw *hw = &pf->hw;
2690 /* WoL not supported if this isn't the controlling PF on the port */
2691 if (hw->partition_id != 1) {
2692 i40e_partition_setting_complaint(pf);
2696 if (vsi != pf->vsi[pf->lan_vsi])
2699 /* NVM bit on means WoL disabled for the port */
2700 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2701 if (BIT(hw->port) & wol_nvm_bits)
2704 /* only magic packet is supported */
2705 if (wol->wolopts & ~WAKE_MAGIC)
2708 /* is this a new value? */
2709 if (pf->wol_en != !!wol->wolopts) {
2710 pf->wol_en = !!wol->wolopts;
2711 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2717 static int i40e_set_phys_id(struct net_device *netdev,
2718 enum ethtool_phys_id_state state)
2720 struct i40e_netdev_priv *np = netdev_priv(netdev);
2721 i40e_status ret = 0;
2722 struct i40e_pf *pf = np->vsi->back;
2723 struct i40e_hw *hw = &pf->hw;
2728 case ETHTOOL_ID_ACTIVE:
2729 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2730 pf->led_status = i40e_led_get(hw);
2732 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2733 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2735 ret = i40e_led_get_phy(hw, &temp_status,
2737 pf->led_status = temp_status;
2741 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2742 i40e_led_set(hw, 0xf, false);
2744 ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2746 case ETHTOOL_ID_OFF:
2747 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2748 i40e_led_set(hw, 0x0, false);
2750 ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2752 case ETHTOOL_ID_INACTIVE:
2753 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2754 i40e_led_set(hw, pf->led_status, false);
2756 ret = i40e_led_set_phy(hw, false, pf->led_status,
2758 I40E_PHY_LED_MODE_ORIG));
2759 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2760 i40e_aq_set_phy_debug(hw, 0, NULL);
2772 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2773 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2774 * 125us (8000 interrupts per second) == ITR(62)
2778 * __i40e_get_coalesce - get per-queue coalesce settings
2779 * @netdev: the netdev to check
2780 * @ec: ethtool coalesce data structure
2781 * @queue: which queue to pick
2783 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2784 * are per queue. If queue is <0 then we default to queue 0 as the
2785 * representative value.
2787 static int __i40e_get_coalesce(struct net_device *netdev,
2788 struct ethtool_coalesce *ec,
2791 struct i40e_netdev_priv *np = netdev_priv(netdev);
2792 struct i40e_ring *rx_ring, *tx_ring;
2793 struct i40e_vsi *vsi = np->vsi;
2795 ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2796 ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2798 /* rx and tx usecs has per queue value. If user doesn't specify the
2799 * queue, return queue 0's value to represent.
2803 else if (queue >= vsi->num_queue_pairs)
2806 rx_ring = vsi->rx_rings[queue];
2807 tx_ring = vsi->tx_rings[queue];
2809 if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2810 ec->use_adaptive_rx_coalesce = 1;
2812 if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2813 ec->use_adaptive_tx_coalesce = 1;
2815 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2816 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2818 /* we use the _usecs_high to store/set the interrupt rate limit
2819 * that the hardware supports, that almost but not quite
2820 * fits the original intent of the ethtool variable,
2821 * the rx_coalesce_usecs_high limits total interrupts
2822 * per second from both tx/rx sources.
2824 ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2825 ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2831 * i40e_get_coalesce - get a netdev's coalesce settings
2832 * @netdev: the netdev to check
2833 * @ec: ethtool coalesce data structure
2834 * @kernel_coal: ethtool CQE mode setting structure
2835 * @extack: extack for reporting error messages
2837 * Gets the coalesce settings for a particular netdev. Note that if user has
2838 * modified per-queue settings, this only guarantees to represent queue 0. See
2839 * __i40e_get_coalesce for more details.
2841 static int i40e_get_coalesce(struct net_device *netdev,
2842 struct ethtool_coalesce *ec,
2843 struct kernel_ethtool_coalesce *kernel_coal,
2844 struct netlink_ext_ack *extack)
2846 return __i40e_get_coalesce(netdev, ec, -1);
2850 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2851 * @netdev: netdev structure
2852 * @ec: ethtool's coalesce settings
2853 * @queue: the particular queue to read
2855 * Will read a specific queue's coalesce settings
2857 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2858 struct ethtool_coalesce *ec)
2860 return __i40e_get_coalesce(netdev, ec, queue);
2864 * i40e_set_itr_per_queue - set ITR values for specific queue
2865 * @vsi: the VSI to set values for
2866 * @ec: coalesce settings from ethtool
2867 * @queue: the queue to modify
2869 * Change the ITR settings for a specific queue.
2871 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2872 struct ethtool_coalesce *ec,
2875 struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2876 struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2877 struct i40e_pf *pf = vsi->back;
2878 struct i40e_hw *hw = &pf->hw;
2879 struct i40e_q_vector *q_vector;
2882 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2884 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2885 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2887 if (ec->use_adaptive_rx_coalesce)
2888 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2890 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2892 if (ec->use_adaptive_tx_coalesce)
2893 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2895 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2897 q_vector = rx_ring->q_vector;
2898 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2900 q_vector = tx_ring->q_vector;
2901 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2903 /* The interrupt handler itself will take care of programming
2904 * the Tx and Rx ITR values based on the values we have entered
2905 * into the q_vector, no need to write the values now.
2908 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2913 * __i40e_set_coalesce - set coalesce settings for particular queue
2914 * @netdev: the netdev to change
2915 * @ec: ethtool coalesce settings
2916 * @queue: the queue to change
2918 * Sets the coalesce settings for a particular queue.
2920 static int __i40e_set_coalesce(struct net_device *netdev,
2921 struct ethtool_coalesce *ec,
2924 struct i40e_netdev_priv *np = netdev_priv(netdev);
2925 u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2926 struct i40e_vsi *vsi = np->vsi;
2927 struct i40e_pf *pf = vsi->back;
2930 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2931 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2934 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
2935 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
2936 } else if (queue < vsi->num_queue_pairs) {
2937 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
2938 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
2940 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2941 vsi->num_queue_pairs - 1);
2945 cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2946 cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2948 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2949 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2950 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2954 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2955 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2956 INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2960 if (ec->rx_coalesce_usecs != cur_rx_itr &&
2961 ec->use_adaptive_rx_coalesce) {
2962 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2966 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
2967 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2971 if (ec->tx_coalesce_usecs != cur_tx_itr &&
2972 ec->use_adaptive_tx_coalesce) {
2973 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2977 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
2978 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2982 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2983 ec->rx_coalesce_usecs = I40E_MIN_ITR;
2985 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2986 ec->tx_coalesce_usecs = I40E_MIN_ITR;
2988 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2989 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2990 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2991 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2992 vsi->int_rate_limit);
2995 /* rx and tx usecs has per queue value. If user doesn't specify the
2996 * queue, apply to all queues.
2999 for (i = 0; i < vsi->num_queue_pairs; i++)
3000 i40e_set_itr_per_queue(vsi, ec, i);
3002 i40e_set_itr_per_queue(vsi, ec, queue);
3009 * i40e_set_coalesce - set coalesce settings for every queue on the netdev
3010 * @netdev: the netdev to change
3011 * @ec: ethtool coalesce settings
3012 * @kernel_coal: ethtool CQE mode setting structure
3013 * @extack: extack for reporting error messages
3015 * This will set each queue to the same coalesce settings.
3017 static int i40e_set_coalesce(struct net_device *netdev,
3018 struct ethtool_coalesce *ec,
3019 struct kernel_ethtool_coalesce *kernel_coal,
3020 struct netlink_ext_ack *extack)
3022 return __i40e_set_coalesce(netdev, ec, -1);
3026 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
3027 * @netdev: the netdev to change
3028 * @ec: ethtool's coalesce settings
3029 * @queue: the queue to change
3031 * Sets the specified queue's coalesce settings.
3033 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
3034 struct ethtool_coalesce *ec)
3036 return __i40e_set_coalesce(netdev, ec, queue);
3040 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
3041 * @pf: pointer to the physical function struct
3042 * @cmd: ethtool rxnfc command
3044 * Returns Success if the flow is supported, else Invalid Input.
3046 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
3048 struct i40e_hw *hw = &pf->hw;
3054 switch (cmd->flow_type) {
3056 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3059 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3062 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3065 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3068 case AH_ESP_V4_FLOW:
3073 case AH_ESP_V6_FLOW:
3077 /* Default is src/dest for IP, no matter the L4 hashing */
3078 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3084 /* Read flow based hash input set register */
3086 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3088 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3089 flow_pctype)) << 32);
3092 /* Process bits of hash input set */
3094 if (i_set & I40E_L4_SRC_MASK)
3095 cmd->data |= RXH_L4_B_0_1;
3096 if (i_set & I40E_L4_DST_MASK)
3097 cmd->data |= RXH_L4_B_2_3;
3099 if (cmd->flow_type == TCP_V4_FLOW ||
3100 cmd->flow_type == UDP_V4_FLOW) {
3101 if (i_set & I40E_L3_SRC_MASK)
3102 cmd->data |= RXH_IP_SRC;
3103 if (i_set & I40E_L3_DST_MASK)
3104 cmd->data |= RXH_IP_DST;
3105 } else if (cmd->flow_type == TCP_V6_FLOW ||
3106 cmd->flow_type == UDP_V6_FLOW) {
3107 if (i_set & I40E_L3_V6_SRC_MASK)
3108 cmd->data |= RXH_IP_SRC;
3109 if (i_set & I40E_L3_V6_DST_MASK)
3110 cmd->data |= RXH_IP_DST;
3118 * i40e_check_mask - Check whether a mask field is set
3119 * @mask: the full mask value
3120 * @field: mask of the field to check
3122 * If the given mask is fully set, return positive value. If the mask for the
3123 * field is fully unset, return zero. Otherwise return a negative error code.
3125 static int i40e_check_mask(u64 mask, u64 field)
3127 u64 value = mask & field;
3138 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3139 * @fsp: pointer to rx flow specification
3140 * @data: pointer to userdef data structure for storage
3142 * Read the user-defined data and deconstruct the value into a structure. No
3143 * other code should read the user-defined data, so as to ensure that every
3144 * place consistently reads the value correctly.
3146 * The user-defined field is a 64bit Big Endian format value, which we
3147 * deconstruct by reading bits or bit fields from it. Single bit flags shall
3148 * be defined starting from the highest bits, while small bit field values
3149 * shall be defined starting from the lowest bits.
3151 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3152 * and the filter should be rejected. The data structure will always be
3153 * modified even if FLOW_EXT is not set.
3156 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3157 struct i40e_rx_flow_userdef *data)
3162 /* Zero memory first so it's always consistent. */
3163 memset(data, 0, sizeof(*data));
3165 if (!(fsp->flow_type & FLOW_EXT))
3168 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3169 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3171 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0)
3172 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16)
3173 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0)
3175 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3179 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3181 (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3182 data->flex_filter = true;
3189 * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3190 * @fsp: pointer to rx_flow specification
3191 * @data: pointer to return userdef data
3193 * Reads the userdef data structure and properly fills in the user defined
3194 * fields of the rx_flow_spec.
3196 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3197 struct i40e_rx_flow_userdef *data)
3199 u64 value = 0, mask = 0;
3201 if (data->flex_filter) {
3202 value |= data->flex_word;
3203 value |= (u64)data->flex_offset << 16;
3204 mask |= I40E_USERDEF_FLEX_FILTER;
3208 fsp->flow_type |= FLOW_EXT;
3210 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3211 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3215 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3216 * @pf: Pointer to the physical function struct
3217 * @cmd: The command to get or set Rx flow classification rules
3218 * @rule_locs: Array of used rule locations
3220 * This function populates both the total and actual rule count of
3221 * the ethtool flow classification command
3223 * Returns 0 on success or -EMSGSIZE if entry not found
3225 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3226 struct ethtool_rxnfc *cmd,
3229 struct i40e_fdir_filter *rule;
3230 struct hlist_node *node2;
3233 /* report total rule count */
3234 cmd->data = i40e_get_fd_cnt_all(pf);
3236 hlist_for_each_entry_safe(rule, node2,
3237 &pf->fdir_filter_list, fdir_node) {
3238 if (cnt == cmd->rule_cnt)
3241 rule_locs[cnt] = rule->fd_id;
3245 cmd->rule_cnt = cnt;
3251 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3252 * @pf: Pointer to the physical function struct
3253 * @cmd: The command to get or set Rx flow classification rules
3255 * This function looks up a filter based on the Rx flow classification
3256 * command and fills the flow spec info for it if found
3258 * Returns 0 on success or -EINVAL if filter not found
3260 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3261 struct ethtool_rxnfc *cmd)
3263 struct ethtool_rx_flow_spec *fsp =
3264 (struct ethtool_rx_flow_spec *)&cmd->fs;
3265 struct i40e_rx_flow_userdef userdef = {0};
3266 struct i40e_fdir_filter *rule = NULL;
3267 struct hlist_node *node2;
3271 hlist_for_each_entry_safe(rule, node2,
3272 &pf->fdir_filter_list, fdir_node) {
3273 if (fsp->location <= rule->fd_id)
3277 if (!rule || fsp->location != rule->fd_id)
3280 fsp->flow_type = rule->flow_type;
3281 if (fsp->flow_type == IP_USER_FLOW) {
3282 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3283 fsp->h_u.usr_ip4_spec.proto = 0;
3284 fsp->m_u.usr_ip4_spec.proto = 0;
3287 if (fsp->flow_type == IPV6_USER_FLOW ||
3288 fsp->flow_type == UDP_V6_FLOW ||
3289 fsp->flow_type == TCP_V6_FLOW ||
3290 fsp->flow_type == SCTP_V6_FLOW) {
3291 /* Reverse the src and dest notion, since the HW views them
3292 * from Tx perspective where as the user expects it from
3295 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3296 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3297 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3298 sizeof(__be32) * 4);
3299 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3300 sizeof(__be32) * 4);
3302 /* Reverse the src and dest notion, since the HW views them
3303 * from Tx perspective where as the user expects it from
3306 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3307 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3308 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3309 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3312 switch (rule->flow_type) {
3314 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3317 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3320 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3323 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3326 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3329 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3332 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3334 case IPV6_USER_FLOW:
3335 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3338 /* If we have stored a filter with a flow type not listed here
3339 * it is almost certainly a driver bug. WARN(), and then
3340 * assign the input_set as if all fields are enabled to avoid
3341 * reading unassigned memory.
3343 WARN(1, "Missing input set index for flow_type %d\n",
3345 input_set = 0xFFFFFFFFFFFFFFFFULL;
3349 input_set = i40e_read_fd_input_set(pf, index);
3352 if (input_set & I40E_L3_V6_SRC_MASK) {
3353 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3354 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3355 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3356 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3359 if (input_set & I40E_L3_V6_DST_MASK) {
3360 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3361 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3362 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3363 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3366 if (input_set & I40E_L3_SRC_MASK)
3367 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3369 if (input_set & I40E_L3_DST_MASK)
3370 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3372 if (input_set & I40E_L4_SRC_MASK)
3373 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3375 if (input_set & I40E_L4_DST_MASK)
3376 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3378 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3379 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3381 fsp->ring_cookie = rule->q_index;
3383 if (rule->vlan_tag) {
3384 fsp->h_ext.vlan_etype = rule->vlan_etype;
3385 fsp->m_ext.vlan_etype = htons(0xFFFF);
3386 fsp->h_ext.vlan_tci = rule->vlan_tag;
3387 fsp->m_ext.vlan_tci = htons(0xFFFF);
3388 fsp->flow_type |= FLOW_EXT;
3391 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3392 struct i40e_vsi *vsi;
3394 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3395 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3396 /* VFs are zero-indexed by the driver, but ethtool
3397 * expects them to be one-indexed, so add one here
3399 u64 ring_vf = vsi->vf_id + 1;
3401 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3402 fsp->ring_cookie |= ring_vf;
3406 if (rule->flex_filter) {
3407 userdef.flex_filter = true;
3408 userdef.flex_word = be16_to_cpu(rule->flex_word);
3409 userdef.flex_offset = rule->flex_offset;
3412 i40e_fill_rx_flow_user_data(fsp, &userdef);
3418 * i40e_get_rxnfc - command to get RX flow classification rules
3419 * @netdev: network interface device structure
3420 * @cmd: ethtool rxnfc command
3421 * @rule_locs: pointer to store rule data
3423 * Returns Success if the command is supported.
3425 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3428 struct i40e_netdev_priv *np = netdev_priv(netdev);
3429 struct i40e_vsi *vsi = np->vsi;
3430 struct i40e_pf *pf = vsi->back;
3431 int ret = -EOPNOTSUPP;
3434 case ETHTOOL_GRXRINGS:
3435 cmd->data = vsi->rss_size;
3439 ret = i40e_get_rss_hash_opts(pf, cmd);
3441 case ETHTOOL_GRXCLSRLCNT:
3442 cmd->rule_cnt = pf->fdir_pf_active_filters;
3443 /* report total rule count */
3444 cmd->data = i40e_get_fd_cnt_all(pf);
3447 case ETHTOOL_GRXCLSRULE:
3448 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3450 case ETHTOOL_GRXCLSRLALL:
3451 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3461 * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3462 * @nfc: pointer to user request
3463 * @i_setc: bits currently set
3465 * Returns value of bits to be set per user request
3467 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
3470 u64 src_l3 = 0, dst_l3 = 0;
3472 if (nfc->data & RXH_L4_B_0_1)
3473 i_set |= I40E_L4_SRC_MASK;
3475 i_set &= ~I40E_L4_SRC_MASK;
3476 if (nfc->data & RXH_L4_B_2_3)
3477 i_set |= I40E_L4_DST_MASK;
3479 i_set &= ~I40E_L4_DST_MASK;
3481 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3482 src_l3 = I40E_L3_V6_SRC_MASK;
3483 dst_l3 = I40E_L3_V6_DST_MASK;
3484 } else if (nfc->flow_type == TCP_V4_FLOW ||
3485 nfc->flow_type == UDP_V4_FLOW) {
3486 src_l3 = I40E_L3_SRC_MASK;
3487 dst_l3 = I40E_L3_DST_MASK;
3489 /* Any other flow type are not supported here */
3493 if (nfc->data & RXH_IP_SRC)
3497 if (nfc->data & RXH_IP_DST)
3506 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3507 * @pf: pointer to the physical function struct
3508 * @nfc: ethtool rxnfc command
3510 * Returns Success if the flow input set is supported.
3512 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3514 struct i40e_hw *hw = &pf->hw;
3515 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3516 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3520 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3521 dev_err(&pf->pdev->dev,
3522 "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3526 /* RSS does not support anything other than hashing
3527 * to queues on src and dst IPs and ports
3529 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3530 RXH_L4_B_0_1 | RXH_L4_B_2_3))
3533 switch (nfc->flow_type) {
3535 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3536 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3538 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3541 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3542 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3544 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3545 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3547 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3550 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3551 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3553 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
3554 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3556 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3559 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3560 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3562 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
3563 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3565 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3567 case AH_ESP_V4_FLOW:
3571 if ((nfc->data & RXH_L4_B_0_1) ||
3572 (nfc->data & RXH_L4_B_2_3))
3574 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3576 case AH_ESP_V6_FLOW:
3580 if ((nfc->data & RXH_L4_B_0_1) ||
3581 (nfc->data & RXH_L4_B_2_3))
3583 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3586 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3587 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3590 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3591 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3598 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3600 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3601 flow_pctype)) << 32);
3602 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3603 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3605 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3606 (u32)(i_set >> 32));
3607 hena |= BIT_ULL(flow_pctype);
3610 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3611 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3618 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3619 * @vsi: Pointer to the targeted VSI
3620 * @input: The filter to update or NULL to indicate deletion
3621 * @sw_idx: Software index to the filter
3622 * @cmd: The command to get or set Rx flow classification rules
3624 * This function updates (or deletes) a Flow Director entry from
3625 * the hlist of the corresponding PF
3627 * Returns 0 on success
3629 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3630 struct i40e_fdir_filter *input,
3632 struct ethtool_rxnfc *cmd)
3634 struct i40e_fdir_filter *rule, *parent;
3635 struct i40e_pf *pf = vsi->back;
3636 struct hlist_node *node2;
3642 hlist_for_each_entry_safe(rule, node2,
3643 &pf->fdir_filter_list, fdir_node) {
3644 /* hash found, or no matching entry */
3645 if (rule->fd_id >= sw_idx)
3650 /* if there is an old rule occupying our place remove it */
3651 if (rule && (rule->fd_id == sw_idx)) {
3652 /* Remove this rule, since we're either deleting it, or
3655 err = i40e_add_del_fdir(vsi, rule, false);
3656 hlist_del(&rule->fdir_node);
3658 pf->fdir_pf_active_filters--;
3661 /* If we weren't given an input, this is a delete, so just return the
3662 * error code indicating if there was an entry at the requested slot
3667 /* Otherwise, install the new rule as requested */
3668 INIT_HLIST_NODE(&input->fdir_node);
3670 /* add filter to the list */
3672 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3674 hlist_add_head(&input->fdir_node,
3675 &pf->fdir_filter_list);
3678 pf->fdir_pf_active_filters++;
3684 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3685 * @pf: pointer to PF structure
3687 * This function searches the list of filters and determines which FLX_PIT
3688 * entries are still required. It will prune any entries which are no longer
3689 * in use after the deletion.
3691 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3693 struct i40e_flex_pit *entry, *tmp;
3694 struct i40e_fdir_filter *rule;
3696 /* First, we'll check the l3 table */
3697 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3700 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3701 if (rule->flow_type != IP_USER_FLOW)
3703 if (rule->flex_filter &&
3704 rule->flex_offset == entry->src_offset) {
3710 /* If we didn't find the filter, then we can prune this entry
3714 list_del(&entry->list);
3719 /* Followed by the L4 table */
3720 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3723 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3724 /* Skip this filter if it's L3, since we already
3725 * checked those in the above loop
3727 if (rule->flow_type == IP_USER_FLOW)
3729 if (rule->flex_filter &&
3730 rule->flex_offset == entry->src_offset) {
3736 /* If we didn't find the filter, then we can prune this entry
3740 list_del(&entry->list);
3747 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3748 * @vsi: Pointer to the targeted VSI
3749 * @cmd: The command to get or set Rx flow classification rules
3751 * The function removes a Flow Director filter entry from the
3752 * hlist of the corresponding PF
3754 * Returns 0 on success
3756 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3757 struct ethtool_rxnfc *cmd)
3759 struct ethtool_rx_flow_spec *fsp =
3760 (struct ethtool_rx_flow_spec *)&cmd->fs;
3761 struct i40e_pf *pf = vsi->back;
3764 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3765 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3768 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3771 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3773 i40e_prune_flex_pit_list(pf);
3775 i40e_fdir_check_and_reenable(pf);
3780 * i40e_unused_pit_index - Find an unused PIT index for given list
3781 * @pf: the PF data structure
3783 * Find the first unused flexible PIT index entry. We search both the L3 and
3784 * L4 flexible PIT lists so that the returned index is unique and unused by
3785 * either currently programmed L3 or L4 filters. We use a bit field as storage
3786 * to track which indexes are already used.
3788 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3790 unsigned long available_index = 0xFF;
3791 struct i40e_flex_pit *entry;
3793 /* We need to make sure that the new index isn't in use by either L3
3794 * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3795 * L4 to use the same index.
3798 list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3799 clear_bit(entry->pit_index, &available_index);
3801 list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3802 clear_bit(entry->pit_index, &available_index);
3804 return find_first_bit(&available_index, 8);
3808 * i40e_find_flex_offset - Find an existing flex src_offset
3809 * @flex_pit_list: L3 or L4 flex PIT list
3810 * @src_offset: new src_offset to find
3812 * Searches the flex_pit_list for an existing offset. If no offset is
3813 * currently programmed, then this will return an ERR_PTR if there is no space
3814 * to add a new offset, otherwise it returns NULL.
3817 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3820 struct i40e_flex_pit *entry;
3823 /* Search for the src_offset first. If we find a matching entry
3824 * already programmed, we can simply re-use it.
3826 list_for_each_entry(entry, flex_pit_list, list) {
3828 if (entry->src_offset == src_offset)
3832 /* If we haven't found an entry yet, then the provided src offset has
3833 * not yet been programmed. We will program the src offset later on,
3834 * but we need to indicate whether there is enough space to do so
3835 * here. We'll make use of ERR_PTR for this purpose.
3837 if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3838 return ERR_PTR(-ENOSPC);
3844 * i40e_add_flex_offset - Add src_offset to flex PIT table list
3845 * @flex_pit_list: L3 or L4 flex PIT list
3846 * @src_offset: new src_offset to add
3847 * @pit_index: the PIT index to program
3849 * This function programs the new src_offset to the list. It is expected that
3850 * i40e_find_flex_offset has already been tried and returned NULL, indicating
3851 * that this offset is not programmed, and that the list has enough space to
3852 * store another offset.
3854 * Returns 0 on success, and negative value on error.
3856 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3860 struct i40e_flex_pit *new_pit, *entry;
3862 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3866 new_pit->src_offset = src_offset;
3867 new_pit->pit_index = pit_index;
3869 /* We need to insert this item such that the list is sorted by
3870 * src_offset in ascending order.
3872 list_for_each_entry(entry, flex_pit_list, list) {
3873 if (new_pit->src_offset < entry->src_offset) {
3874 list_add_tail(&new_pit->list, &entry->list);
3878 /* If we found an entry with our offset already programmed we
3879 * can simply return here, after freeing the memory. However,
3880 * if the pit_index does not match we need to report an error.
3882 if (new_pit->src_offset == entry->src_offset) {
3885 /* If the PIT index is not the same we can't re-use
3886 * the entry, so we must report an error.
3888 if (new_pit->pit_index != entry->pit_index)
3896 /* If we reached here, then we haven't yet added the item. This means
3897 * that we should add the item at the end of the list.
3899 list_add_tail(&new_pit->list, flex_pit_list);
3904 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3905 * @pf: Pointer to the PF structure
3906 * @flex_pit_list: list of flexible src offsets in use
3907 * @flex_pit_start: index to first entry for this section of the table
3909 * In order to handle flexible data, the hardware uses a table of values
3910 * called the FLX_PIT table. This table is used to indicate which sections of
3911 * the input correspond to what PIT index values. Unfortunately, hardware is
3912 * very restrictive about programming this table. Entries must be ordered by
3913 * src_offset in ascending order, without duplicates. Additionally, unused
3914 * entries must be set to the unused index value, and must have valid size and
3915 * length according to the src_offset ordering.
3917 * This function will reprogram the FLX_PIT register from a book-keeping
3918 * structure that we guarantee is already ordered correctly, and has no more
3921 * To make things easier, we only support flexible values of one word length,
3922 * rather than allowing variable length flexible values.
3924 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3925 struct list_head *flex_pit_list,
3928 struct i40e_flex_pit *entry = NULL;
3929 u16 last_offset = 0;
3932 /* First, loop over the list of flex PIT entries, and reprogram the
3935 list_for_each_entry(entry, flex_pit_list, list) {
3936 /* We have to be careful when programming values for the
3937 * largest SRC_OFFSET value. It is possible that adding
3938 * additional empty values at the end would overflow the space
3939 * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3940 * we check here and add the empty values prior to adding the
3943 * To determine this, we will use a loop from i+1 to 3, which
3944 * will determine whether the unused entries would have valid
3945 * SRC_OFFSET. Note that there cannot be extra entries past
3946 * this value, because the only valid values would have been
3947 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3948 * have been added to the list in the first place.
3950 for (j = i + 1; j < 3; j++) {
3951 u16 offset = entry->src_offset + j;
3952 int index = flex_pit_start + i;
3953 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3957 if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3958 i40e_write_rx_ctl(&pf->hw,
3959 I40E_PRTQF_FLX_PIT(index),
3965 /* Now, we can program the actual value into the table */
3966 i40e_write_rx_ctl(&pf->hw,
3967 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3968 I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3970 entry->src_offset));
3974 /* In order to program the last entries in the table, we need to
3975 * determine the valid offset. If the list is empty, we'll just start
3976 * with 0. Otherwise, we'll start with the last item offset and add 1.
3977 * This ensures that all entries have valid sizes. If we don't do this
3978 * correctly, the hardware will disable flexible field parsing.
3980 if (!list_empty(flex_pit_list))
3981 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3983 for (; i < 3; i++, last_offset++) {
3984 i40e_write_rx_ctl(&pf->hw,
3985 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3986 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3993 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3994 * @pf: pointer to the PF structure
3996 * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3997 * internal helper function for implementation details.
3999 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
4001 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
4002 I40E_FLEX_PIT_IDX_START_L3);
4004 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
4005 I40E_FLEX_PIT_IDX_START_L4);
4007 /* We also need to program the L3 and L4 GLQF ORT register */
4008 i40e_write_rx_ctl(&pf->hw,
4009 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
4010 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
4013 i40e_write_rx_ctl(&pf->hw,
4014 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
4015 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
4020 * i40e_flow_str - Converts a flow_type into a human readable string
4021 * @fsp: the flow specification
4023 * Currently only flow types we support are included here, and the string
4024 * value attempts to match what ethtool would use to configure this flow type.
4026 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
4028 switch (fsp->flow_type & ~FLOW_EXT) {
4043 case IPV6_USER_FLOW:
4051 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
4052 * @pit_index: PIT index to convert
4054 * Returns the mask for a given PIT index. Will return 0 if the pit_index is
4057 static u64 i40e_pit_index_to_mask(int pit_index)
4059 switch (pit_index) {
4061 return I40E_FLEX_50_MASK;
4063 return I40E_FLEX_51_MASK;
4065 return I40E_FLEX_52_MASK;
4067 return I40E_FLEX_53_MASK;
4069 return I40E_FLEX_54_MASK;
4071 return I40E_FLEX_55_MASK;
4073 return I40E_FLEX_56_MASK;
4075 return I40E_FLEX_57_MASK;
4082 * i40e_print_input_set - Show changes between two input sets
4083 * @vsi: the vsi being configured
4084 * @old: the old input set
4085 * @new: the new input set
4087 * Print the difference between old and new input sets by showing which series
4088 * of words are toggled on or off. Only displays the bits we actually support
4091 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4093 struct i40e_pf *pf = vsi->back;
4094 bool old_value, new_value;
4097 old_value = !!(old & I40E_L3_SRC_MASK);
4098 new_value = !!(new & I40E_L3_SRC_MASK);
4099 if (old_value != new_value)
4100 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4101 old_value ? "ON" : "OFF",
4102 new_value ? "ON" : "OFF");
4104 old_value = !!(old & I40E_L3_DST_MASK);
4105 new_value = !!(new & I40E_L3_DST_MASK);
4106 if (old_value != new_value)
4107 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4108 old_value ? "ON" : "OFF",
4109 new_value ? "ON" : "OFF");
4111 old_value = !!(old & I40E_L4_SRC_MASK);
4112 new_value = !!(new & I40E_L4_SRC_MASK);
4113 if (old_value != new_value)
4114 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4115 old_value ? "ON" : "OFF",
4116 new_value ? "ON" : "OFF");
4118 old_value = !!(old & I40E_L4_DST_MASK);
4119 new_value = !!(new & I40E_L4_DST_MASK);
4120 if (old_value != new_value)
4121 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4122 old_value ? "ON" : "OFF",
4123 new_value ? "ON" : "OFF");
4125 old_value = !!(old & I40E_VERIFY_TAG_MASK);
4126 new_value = !!(new & I40E_VERIFY_TAG_MASK);
4127 if (old_value != new_value)
4128 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4129 old_value ? "ON" : "OFF",
4130 new_value ? "ON" : "OFF");
4132 /* Show change of flexible filter entries */
4133 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4134 u64 flex_mask = i40e_pit_index_to_mask(i);
4136 old_value = !!(old & flex_mask);
4137 new_value = !!(new & flex_mask);
4138 if (old_value != new_value)
4139 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4141 old_value ? "ON" : "OFF",
4142 new_value ? "ON" : "OFF");
4145 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n",
4147 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4152 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4153 * @vsi: pointer to the targeted VSI
4154 * @fsp: pointer to Rx flow specification
4155 * @userdef: userdefined data from flow specification
4157 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4158 * for partial matches exists with a few limitations. First, hardware only
4159 * supports masking by word boundary (2 bytes) and not per individual bit.
4160 * Second, hardware is limited to using one mask for a flow type and cannot
4161 * use a separate mask for each filter.
4163 * To support these limitations, if we already have a configured filter for
4164 * the specified type, this function enforces that new filters of the type
4165 * match the configured input set. Otherwise, if we do not have a filter of
4166 * the specified type, we allow the input set to be updated to match the
4169 * To help ensure that administrators understand why filters weren't displayed
4170 * as supported, we print a diagnostic message displaying how the input set
4171 * would change and warning to delete the preexisting filters if required.
4173 * Returns 0 on successful input set match, and a negative return code on
4176 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4177 struct ethtool_rx_flow_spec *fsp,
4178 struct i40e_rx_flow_userdef *userdef)
4180 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4181 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4182 cpu_to_be32(0xffffffff)};
4183 struct ethtool_tcpip6_spec *tcp_ip6_spec;
4184 struct ethtool_usrip6_spec *usr_ip6_spec;
4185 struct ethtool_tcpip4_spec *tcp_ip4_spec;
4186 struct ethtool_usrip4_spec *usr_ip4_spec;
4187 struct i40e_pf *pf = vsi->back;
4188 u64 current_mask, new_mask;
4189 bool new_flex_offset = false;
4190 bool flex_l3 = false;
4191 u16 *fdir_filter_count;
4192 u16 index, src_offset = 0;
4196 switch (fsp->flow_type & ~FLOW_EXT) {
4198 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4199 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4202 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4203 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4206 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4207 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4210 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4211 fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4214 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4215 fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4218 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4219 fdir_filter_count = &pf->fd_udp6_filter_cnt;
4222 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4223 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4226 case IPV6_USER_FLOW:
4227 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4228 fdir_filter_count = &pf->fd_ip6_filter_cnt;
4235 /* Read the current input set from register memory. */
4236 current_mask = i40e_read_fd_input_set(pf, index);
4237 new_mask = current_mask;
4239 /* Determine, if any, the required changes to the input set in order
4240 * to support the provided mask.
4242 * Hardware only supports masking at word (2 byte) granularity and does
4243 * not support full bitwise masking. This implementation simplifies
4244 * even further and only supports fully enabled or fully disabled
4245 * masks for each field, even though we could split the ip4src and
4248 switch (fsp->flow_type & ~FLOW_EXT) {
4250 new_mask &= ~I40E_VERIFY_TAG_MASK;
4254 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4256 /* IPv4 source address */
4257 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4258 new_mask |= I40E_L3_SRC_MASK;
4259 else if (!tcp_ip4_spec->ip4src)
4260 new_mask &= ~I40E_L3_SRC_MASK;
4264 /* IPv4 destination address */
4265 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4266 new_mask |= I40E_L3_DST_MASK;
4267 else if (!tcp_ip4_spec->ip4dst)
4268 new_mask &= ~I40E_L3_DST_MASK;
4272 /* L4 source port */
4273 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4274 new_mask |= I40E_L4_SRC_MASK;
4275 else if (!tcp_ip4_spec->psrc)
4276 new_mask &= ~I40E_L4_SRC_MASK;
4280 /* L4 destination port */
4281 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4282 new_mask |= I40E_L4_DST_MASK;
4283 else if (!tcp_ip4_spec->pdst)
4284 new_mask &= ~I40E_L4_DST_MASK;
4288 /* Filtering on Type of Service is not supported. */
4289 if (tcp_ip4_spec->tos)
4294 new_mask &= ~I40E_VERIFY_TAG_MASK;
4298 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4300 /* Check if user provided IPv6 source address. */
4301 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4302 (struct in6_addr *)&ipv6_full_mask))
4303 new_mask |= I40E_L3_V6_SRC_MASK;
4304 else if (ipv6_addr_any((struct in6_addr *)
4305 &tcp_ip6_spec->ip6src))
4306 new_mask &= ~I40E_L3_V6_SRC_MASK;
4310 /* Check if user provided destination address. */
4311 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4312 (struct in6_addr *)&ipv6_full_mask))
4313 new_mask |= I40E_L3_V6_DST_MASK;
4314 else if (ipv6_addr_any((struct in6_addr *)
4315 &tcp_ip6_spec->ip6dst))
4316 new_mask &= ~I40E_L3_V6_DST_MASK;
4320 /* L4 source port */
4321 if (tcp_ip6_spec->psrc == htons(0xFFFF))
4322 new_mask |= I40E_L4_SRC_MASK;
4323 else if (!tcp_ip6_spec->psrc)
4324 new_mask &= ~I40E_L4_SRC_MASK;
4328 /* L4 destination port */
4329 if (tcp_ip6_spec->pdst == htons(0xFFFF))
4330 new_mask |= I40E_L4_DST_MASK;
4331 else if (!tcp_ip6_spec->pdst)
4332 new_mask &= ~I40E_L4_DST_MASK;
4336 /* Filtering on Traffic Classes is not supported. */
4337 if (tcp_ip6_spec->tclass)
4341 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4343 /* IPv4 source address */
4344 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4345 new_mask |= I40E_L3_SRC_MASK;
4346 else if (!usr_ip4_spec->ip4src)
4347 new_mask &= ~I40E_L3_SRC_MASK;
4351 /* IPv4 destination address */
4352 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4353 new_mask |= I40E_L3_DST_MASK;
4354 else if (!usr_ip4_spec->ip4dst)
4355 new_mask &= ~I40E_L3_DST_MASK;
4359 /* First 4 bytes of L4 header */
4360 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4361 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4362 else if (!usr_ip4_spec->l4_4_bytes)
4363 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4367 /* Filtering on Type of Service is not supported. */
4368 if (usr_ip4_spec->tos)
4371 /* Filtering on IP version is not supported */
4372 if (usr_ip4_spec->ip_ver)
4375 /* Filtering on L4 protocol is not supported */
4376 if (usr_ip4_spec->proto)
4380 case IPV6_USER_FLOW:
4381 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4383 /* Check if user provided IPv6 source address. */
4384 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4385 (struct in6_addr *)&ipv6_full_mask))
4386 new_mask |= I40E_L3_V6_SRC_MASK;
4387 else if (ipv6_addr_any((struct in6_addr *)
4388 &usr_ip6_spec->ip6src))
4389 new_mask &= ~I40E_L3_V6_SRC_MASK;
4393 /* Check if user provided destination address. */
4394 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4395 (struct in6_addr *)&ipv6_full_mask))
4396 new_mask |= I40E_L3_V6_DST_MASK;
4397 else if (ipv6_addr_any((struct in6_addr *)
4398 &usr_ip6_spec->ip6src))
4399 new_mask &= ~I40E_L3_V6_DST_MASK;
4403 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4404 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4405 else if (!usr_ip6_spec->l4_4_bytes)
4406 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4410 /* Filtering on Traffic class is not supported. */
4411 if (usr_ip6_spec->tclass)
4414 /* Filtering on L4 protocol is not supported */
4415 if (usr_ip6_spec->l4_proto)
4423 if (fsp->flow_type & FLOW_EXT) {
4424 /* Allow only 802.1Q and no etype defined, as
4425 * later it's modified to 0x8100
4427 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4428 fsp->h_ext.vlan_etype != 0)
4430 if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4431 new_mask |= I40E_VLAN_SRC_MASK;
4433 new_mask &= ~I40E_VLAN_SRC_MASK;
4436 /* First, clear all flexible filter entries */
4437 new_mask &= ~I40E_FLEX_INPUT_MASK;
4439 /* If we have a flexible filter, try to add this offset to the correct
4440 * flexible filter PIT list. Once finished, we can update the mask.
4441 * If the src_offset changed, we will get a new mask value which will
4442 * trigger an input set change.
4444 if (userdef->flex_filter) {
4445 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4447 /* Flexible offset must be even, since the flexible payload
4448 * must be aligned on 2-byte boundary.
4450 if (userdef->flex_offset & 0x1) {
4451 dev_warn(&pf->pdev->dev,
4452 "Flexible data offset must be 2-byte aligned\n");
4456 src_offset = userdef->flex_offset >> 1;
4458 /* FLX_PIT source offset value is only so large */
4459 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4460 dev_warn(&pf->pdev->dev,
4461 "Flexible data must reside within first 64 bytes of the packet payload\n");
4465 /* See if this offset has already been programmed. If we get
4466 * an ERR_PTR, then the filter is not safe to add. Otherwise,
4467 * if we get a NULL pointer, this means we will need to add
4470 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4472 if (IS_ERR(flex_pit))
4473 return PTR_ERR(flex_pit);
4475 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4476 * packet types, and thus we need to program both L3 and L4
4477 * flexible values. These must have identical flexible index,
4478 * as otherwise we can't correctly program the input set. So
4479 * we'll find both an L3 and L4 index and make sure they are
4484 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4486 if (IS_ERR(l3_flex_pit))
4487 return PTR_ERR(l3_flex_pit);
4490 /* If we already had a matching L4 entry, we
4491 * need to make sure that the L3 entry we
4492 * obtained uses the same index.
4495 if (l3_flex_pit->pit_index !=
4496 flex_pit->pit_index) {
4500 new_flex_offset = true;
4503 flex_pit = l3_flex_pit;
4507 /* If we didn't find an existing flex offset, we need to
4508 * program a new one. However, we don't immediately program it
4509 * here because we will wait to program until after we check
4510 * that it is safe to change the input set.
4513 new_flex_offset = true;
4514 pit_index = i40e_unused_pit_index(pf);
4516 pit_index = flex_pit->pit_index;
4519 /* Update the mask with the new offset */
4520 new_mask |= i40e_pit_index_to_mask(pit_index);
4523 /* If the mask and flexible filter offsets for this filter match the
4524 * currently programmed values we don't need any input set change, so
4525 * this filter is safe to install.
4527 if (new_mask == current_mask && !new_flex_offset)
4530 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4531 i40e_flow_str(fsp));
4532 i40e_print_input_set(vsi, current_mask, new_mask);
4533 if (new_flex_offset) {
4534 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4535 pit_index, src_offset);
4538 /* Hardware input sets are global across multiple ports, so even the
4539 * main port cannot change them when in MFP mode as this would impact
4540 * any filters on the other ports.
4542 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4543 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4547 /* This filter requires us to update the input set. However, hardware
4548 * only supports one input set per flow type, and does not support
4549 * separate masks for each filter. This means that we can only support
4550 * a single mask for all filters of a specific type.
4552 * If we have preexisting filters, they obviously depend on the
4553 * current programmed input set. Display a diagnostic message in this
4554 * case explaining why the filter could not be accepted.
4556 if (*fdir_filter_count) {
4557 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4559 *fdir_filter_count);
4563 i40e_write_fd_input_set(pf, index, new_mask);
4565 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4566 * frames. If we're programming the input set for IPv4/Other, we also
4567 * need to program the IPv4/Fragmented input set. Since we don't have
4568 * separate support, we'll always assume and enforce that the two flow
4569 * types must have matching input sets.
4571 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4572 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4575 /* Add the new offset and update table, if necessary */
4576 if (new_flex_offset) {
4577 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4583 err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4590 i40e_reprogram_flex_pit(pf);
4597 * i40e_match_fdir_filter - Return true of two filters match
4598 * @a: pointer to filter struct
4599 * @b: pointer to filter struct
4601 * Returns true if the two filters match exactly the same criteria. I.e. they
4602 * match the same flow type and have the same parameters. We don't need to
4603 * check any input-set since all filters of the same flow type must use the
4606 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4607 struct i40e_fdir_filter *b)
4609 /* The filters do not much if any of these criteria differ. */
4610 if (a->dst_ip != b->dst_ip ||
4611 a->src_ip != b->src_ip ||
4612 a->dst_port != b->dst_port ||
4613 a->src_port != b->src_port ||
4614 a->flow_type != b->flow_type ||
4615 a->ipl4_proto != b->ipl4_proto ||
4616 a->vlan_tag != b->vlan_tag ||
4617 a->vlan_etype != b->vlan_etype)
4624 * i40e_disallow_matching_filters - Check that new filters differ
4625 * @vsi: pointer to the targeted VSI
4626 * @input: new filter to check
4628 * Due to hardware limitations, it is not possible for two filters that match
4629 * similar criteria to be programmed at the same time. This is true for a few
4632 * (a) all filters matching a particular flow type must use the same input
4633 * set, that is they must match the same criteria.
4634 * (b) different flow types will never match the same packet, as the flow type
4635 * is decided by hardware before checking which rules apply.
4636 * (c) hardware has no way to distinguish which order filters apply in.
4638 * Due to this, we can't really support using the location data to order
4639 * filters in the hardware parsing. It is technically possible for the user to
4640 * request two filters matching the same criteria but which select different
4641 * queues. In this case, rather than keep both filters in the list, we reject
4642 * the 2nd filter when the user requests adding it.
4644 * This avoids needing to track location for programming the filter to
4645 * hardware, and ensures that we avoid some strange scenarios involving
4646 * deleting filters which match the same criteria.
4648 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4649 struct i40e_fdir_filter *input)
4651 struct i40e_pf *pf = vsi->back;
4652 struct i40e_fdir_filter *rule;
4653 struct hlist_node *node2;
4655 /* Loop through every filter, and check that it doesn't match */
4656 hlist_for_each_entry_safe(rule, node2,
4657 &pf->fdir_filter_list, fdir_node) {
4658 /* Don't check the filters match if they share the same fd_id,
4659 * since the new filter is actually just updating the target
4660 * of the old filter.
4662 if (rule->fd_id == input->fd_id)
4665 /* If any filters match, then print a warning message to the
4666 * kernel message buffer and bail out.
4668 if (i40e_match_fdir_filter(rule, input)) {
4669 dev_warn(&pf->pdev->dev,
4670 "Existing user defined filter %d already matches this flow.\n",
4680 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4681 * @vsi: pointer to the targeted VSI
4682 * @cmd: command to get or set RX flow classification rules
4684 * Add Flow Director filters for a specific flow spec based on their
4685 * protocol. Returns 0 if the filters were successfully added.
4687 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4688 struct ethtool_rxnfc *cmd)
4690 struct i40e_rx_flow_userdef userdef;
4691 struct ethtool_rx_flow_spec *fsp;
4692 struct i40e_fdir_filter *input;
4693 u16 dest_vsi = 0, q_index = 0;
4702 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4705 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4708 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4709 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4712 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4715 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4717 /* Parse the user-defined field */
4718 if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4721 /* Extended MAC field is not supported */
4722 if (fsp->flow_type & FLOW_MAC_EXT)
4725 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4729 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4730 pf->hw.func_caps.fd_filters_guaranteed)) {
4734 /* ring_cookie is either the drop index, or is a mask of the queue
4735 * index and VF id we wish to target.
4737 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4738 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4740 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4741 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4744 if (ring >= vsi->num_queue_pairs)
4748 /* VFs are zero-indexed, so we subtract one here */
4751 if (vf >= pf->num_alloc_vfs)
4753 if (ring >= pf->vf[vf].num_queue_pairs)
4755 dest_vsi = pf->vf[vf].lan_vsi_id;
4757 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4761 input = kzalloc(sizeof(*input), GFP_KERNEL);
4766 input->fd_id = fsp->location;
4767 input->q_index = q_index;
4768 input->dest_vsi = dest_vsi;
4769 input->dest_ctl = dest_ctl;
4770 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4771 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4772 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4773 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4774 input->flow_type = fsp->flow_type & ~FLOW_EXT;
4776 input->vlan_etype = fsp->h_ext.vlan_etype;
4777 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4778 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4779 if (fsp->m_ext.vlan_tci && input->vlan_etype)
4780 input->vlan_tag = fsp->h_ext.vlan_tci;
4781 if (input->flow_type == IPV6_USER_FLOW ||
4782 input->flow_type == UDP_V6_FLOW ||
4783 input->flow_type == TCP_V6_FLOW ||
4784 input->flow_type == SCTP_V6_FLOW) {
4785 /* Reverse the src and dest notion, since the HW expects them
4786 * to be from Tx perspective where as the input from user is
4787 * from Rx filter view.
4789 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4790 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4791 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4792 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4793 sizeof(__be32) * 4);
4794 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4795 sizeof(__be32) * 4);
4797 /* Reverse the src and dest notion, since the HW expects them
4798 * to be from Tx perspective where as the input from user is
4799 * from Rx filter view.
4801 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4802 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4803 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4804 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4805 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4808 if (userdef.flex_filter) {
4809 input->flex_filter = true;
4810 input->flex_word = cpu_to_be16(userdef.flex_word);
4811 input->flex_offset = userdef.flex_offset;
4814 /* Avoid programming two filters with identical match criteria. */
4815 ret = i40e_disallow_matching_filters(vsi, input);
4817 goto free_filter_memory;
4819 /* Add the input filter to the fdir_input_list, possibly replacing
4820 * a previous filter. Do not free the input structure after adding it
4821 * to the list as this would cause a use-after-free bug.
4823 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4824 ret = i40e_add_del_fdir(vsi, input, true);
4826 goto remove_sw_rule;
4830 hlist_del(&input->fdir_node);
4831 pf->fdir_pf_active_filters--;
4838 * i40e_set_rxnfc - command to set RX flow classification rules
4839 * @netdev: network interface device structure
4840 * @cmd: ethtool rxnfc command
4842 * Returns Success if the command is supported.
4844 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4846 struct i40e_netdev_priv *np = netdev_priv(netdev);
4847 struct i40e_vsi *vsi = np->vsi;
4848 struct i40e_pf *pf = vsi->back;
4849 int ret = -EOPNOTSUPP;
4853 ret = i40e_set_rss_hash_opt(pf, cmd);
4855 case ETHTOOL_SRXCLSRLINS:
4856 ret = i40e_add_fdir_ethtool(vsi, cmd);
4858 case ETHTOOL_SRXCLSRLDEL:
4859 ret = i40e_del_fdir_entry(vsi, cmd);
4869 * i40e_max_channels - get Max number of combined channels supported
4872 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4874 /* TODO: This code assumes DCB and FD is disabled for now. */
4875 return vsi->alloc_queue_pairs;
4879 * i40e_get_channels - Get the current channels enabled and max supported etc.
4880 * @dev: network interface device structure
4881 * @ch: ethtool channels structure
4883 * We don't support separate tx and rx queues as channels. The other count
4884 * represents how many queues are being used for control. max_combined counts
4885 * how many queue pairs we can support. They may not be mapped 1 to 1 with
4886 * q_vectors since we support a lot more queue pairs than q_vectors.
4888 static void i40e_get_channels(struct net_device *dev,
4889 struct ethtool_channels *ch)
4891 struct i40e_netdev_priv *np = netdev_priv(dev);
4892 struct i40e_vsi *vsi = np->vsi;
4893 struct i40e_pf *pf = vsi->back;
4895 /* report maximum channels */
4896 ch->max_combined = i40e_max_channels(vsi);
4898 /* report info for other vector */
4899 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4900 ch->max_other = ch->other_count;
4902 /* Note: This code assumes DCB is disabled for now. */
4903 ch->combined_count = vsi->num_queue_pairs;
4907 * i40e_set_channels - Set the new channels count.
4908 * @dev: network interface device structure
4909 * @ch: ethtool channels structure
4911 * The new channels count may not be the same as requested by the user
4912 * since it gets rounded down to a power of 2 value.
4914 static int i40e_set_channels(struct net_device *dev,
4915 struct ethtool_channels *ch)
4917 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4918 struct i40e_netdev_priv *np = netdev_priv(dev);
4919 unsigned int count = ch->combined_count;
4920 struct i40e_vsi *vsi = np->vsi;
4921 struct i40e_pf *pf = vsi->back;
4922 struct i40e_fdir_filter *rule;
4923 struct hlist_node *node2;
4927 /* We do not support setting channels for any other VSI at present */
4928 if (vsi->type != I40E_VSI_MAIN)
4931 /* We do not support setting channels via ethtool when TCs are
4932 * configured through mqprio
4934 if (pf->flags & I40E_FLAG_TC_MQPRIO)
4937 /* verify they are not requesting separate vectors */
4938 if (!count || ch->rx_count || ch->tx_count)
4941 /* verify other_count has not changed */
4942 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4945 /* verify the number of channels does not exceed hardware limits */
4946 if (count > i40e_max_channels(vsi))
4949 /* verify that the number of channels does not invalidate any current
4950 * flow director rules
4952 hlist_for_each_entry_safe(rule, node2,
4953 &pf->fdir_filter_list, fdir_node) {
4954 if (rule->dest_ctl != drop && count <= rule->q_index) {
4955 dev_warn(&pf->pdev->dev,
4956 "Existing user defined filter %d assigns flow to queue %d\n",
4957 rule->fd_id, rule->q_index);
4963 dev_err(&pf->pdev->dev,
4964 "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4969 /* update feature limits from largest to smallest supported values */
4970 /* TODO: Flow director limit, DCB etc */
4972 /* use rss_reconfig to rebuild with new queue count and update traffic
4973 * class queue mapping
4975 new_count = i40e_reconfig_rss_queues(pf, count);
4983 * i40e_get_rxfh_key_size - get the RSS hash key size
4984 * @netdev: network interface device structure
4986 * Returns the table size.
4988 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4990 return I40E_HKEY_ARRAY_SIZE;
4994 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4995 * @netdev: network interface device structure
4997 * Returns the table size.
4999 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
5001 return I40E_HLUT_ARRAY_SIZE;
5005 * i40e_get_rxfh - get the rx flow hash indirection table
5006 * @netdev: network interface device structure
5007 * @indir: indirection table
5009 * @hfunc: hash function
5011 * Reads the indirection table directly from the hardware. Returns 0 on
5014 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
5017 struct i40e_netdev_priv *np = netdev_priv(netdev);
5018 struct i40e_vsi *vsi = np->vsi;
5019 u8 *lut, *seed = NULL;
5024 *hfunc = ETH_RSS_HASH_TOP;
5030 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5033 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
5036 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5037 indir[i] = (u32)(lut[i]);
5046 * i40e_set_rxfh - set the rx flow hash indirection table
5047 * @netdev: network interface device structure
5048 * @indir: indirection table
5050 * @hfunc: hash function to use
5052 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
5053 * returns 0 after programming the table.
5055 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
5056 const u8 *key, const u8 hfunc)
5058 struct i40e_netdev_priv *np = netdev_priv(netdev);
5059 struct i40e_vsi *vsi = np->vsi;
5060 struct i40e_pf *pf = vsi->back;
5064 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
5068 if (!vsi->rss_hkey_user) {
5069 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5071 if (!vsi->rss_hkey_user)
5074 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
5075 seed = vsi->rss_hkey_user;
5077 if (!vsi->rss_lut_user) {
5078 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5079 if (!vsi->rss_lut_user)
5083 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
5085 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5086 vsi->rss_lut_user[i] = (u8)(indir[i]);
5088 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5091 return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5092 I40E_HLUT_ARRAY_SIZE);
5096 * i40e_get_priv_flags - report device private flags
5097 * @dev: network interface device structure
5099 * The get string set count and the string set should be matched for each
5100 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags
5103 * Returns a u32 bitmap of flags.
5105 static u32 i40e_get_priv_flags(struct net_device *dev)
5107 struct i40e_netdev_priv *np = netdev_priv(dev);
5108 struct i40e_vsi *vsi = np->vsi;
5109 struct i40e_pf *pf = vsi->back;
5110 u32 i, j, ret_flags = 0;
5112 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5113 const struct i40e_priv_flags *priv_flags;
5115 priv_flags = &i40e_gstrings_priv_flags[i];
5117 if (priv_flags->flag & pf->flags)
5118 ret_flags |= BIT(i);
5121 if (pf->hw.pf_id != 0)
5124 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5125 const struct i40e_priv_flags *priv_flags;
5127 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5129 if (priv_flags->flag & pf->flags)
5130 ret_flags |= BIT(i + j);
5137 * i40e_set_priv_flags - set private flags
5138 * @dev: network interface device structure
5139 * @flags: bit flags to be set
5141 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5143 struct i40e_netdev_priv *np = netdev_priv(dev);
5144 u64 orig_flags, new_flags, changed_flags;
5145 enum i40e_admin_queue_err adq_err;
5146 struct i40e_vsi *vsi = np->vsi;
5147 struct i40e_pf *pf = vsi->back;
5148 u32 reset_needed = 0;
5152 orig_flags = READ_ONCE(pf->flags);
5153 new_flags = orig_flags;
5155 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5156 const struct i40e_priv_flags *priv_flags;
5158 priv_flags = &i40e_gstrings_priv_flags[i];
5161 new_flags |= priv_flags->flag;
5163 new_flags &= ~(priv_flags->flag);
5165 /* If this is a read-only flag, it can't be changed */
5166 if (priv_flags->read_only &&
5167 ((orig_flags ^ new_flags) & ~BIT(i)))
5171 if (pf->hw.pf_id != 0)
5172 goto flags_complete;
5174 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5175 const struct i40e_priv_flags *priv_flags;
5177 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5179 if (flags & BIT(i + j))
5180 new_flags |= priv_flags->flag;
5182 new_flags &= ~(priv_flags->flag);
5184 /* If this is a read-only flag, it can't be changed */
5185 if (priv_flags->read_only &&
5186 ((orig_flags ^ new_flags) & ~BIT(i)))
5191 changed_flags = orig_flags ^ new_flags;
5193 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP)
5194 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5195 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
5196 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED))
5197 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5199 /* Before we finalize any flag changes, we need to perform some
5200 * checks to ensure that the changes are supported and safe.
5203 /* ATR eviction is not supported on all devices */
5204 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
5205 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
5208 /* If the driver detected FW LLDP was disabled on init, this flag could
5209 * be set, however we do not support _changing_ the flag:
5210 * - on XL710 if NPAR is enabled or FW API version < 1.7
5211 * - on X722 with FW API version < 1.6
5212 * There are situations where older FW versions/NPAR enabled PFs could
5213 * disable LLDP, however we _must_ not allow the user to enable/disable
5214 * LLDP with this flag on unsupported FW versions.
5216 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5217 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
5218 dev_warn(&pf->pdev->dev,
5219 "Device does not support changing FW LLDP\n");
5224 if (changed_flags & I40E_FLAG_RS_FEC &&
5225 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5226 pf->hw.device_id != I40E_DEV_ID_25G_B) {
5227 dev_warn(&pf->pdev->dev,
5228 "Device does not support changing FEC configuration\n");
5232 if (changed_flags & I40E_FLAG_BASE_R_FEC &&
5233 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5234 pf->hw.device_id != I40E_DEV_ID_25G_B &&
5235 pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5236 dev_warn(&pf->pdev->dev,
5237 "Device does not support changing FEC configuration\n");
5241 /* Process any additional changes needed as a result of flag changes.
5242 * The changed_flags value reflects the list of bits that were
5243 * changed in the code above.
5246 /* Flush current ATR settings if ATR was disabled */
5247 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
5248 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
5249 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5250 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5253 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
5254 u16 sw_flags = 0, valid_flags = 0;
5257 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
5258 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5259 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5260 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5262 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5263 dev_info(&pf->pdev->dev,
5264 "couldn't set switch config bits, err %s aq_err %s\n",
5265 i40e_stat_str(&pf->hw, ret),
5266 i40e_aq_str(&pf->hw,
5267 pf->hw.aq.asq_last_status));
5268 /* not a fatal problem, just keep going */
5272 if ((changed_flags & I40E_FLAG_RS_FEC) ||
5273 (changed_flags & I40E_FLAG_BASE_R_FEC)) {
5276 if (new_flags & I40E_FLAG_RS_FEC &&
5277 new_flags & I40E_FLAG_BASE_R_FEC) {
5278 fec_cfg = I40E_AQ_SET_FEC_AUTO;
5279 } else if (new_flags & I40E_FLAG_RS_FEC) {
5280 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5281 I40E_AQ_SET_FEC_ABILITY_RS);
5282 } else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5283 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5284 I40E_AQ_SET_FEC_ABILITY_KR);
5286 if (i40e_set_fec_cfg(dev, fec_cfg))
5287 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5290 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5291 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) {
5292 dev_err(&pf->pdev->dev,
5293 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5297 if ((changed_flags & new_flags &
5298 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5299 (new_flags & I40E_FLAG_MFP_ENABLED))
5300 dev_warn(&pf->pdev->dev,
5301 "Turning on link-down-on-close flag may affect other partitions\n");
5303 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5304 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5305 #ifdef CONFIG_I40E_DCB
5306 i40e_dcb_sw_default_config(pf);
5307 #endif /* CONFIG_I40E_DCB */
5308 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5309 i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5311 status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5313 adq_err = pf->hw.aq.asq_last_status;
5315 case I40E_AQ_RC_EEXIST:
5316 dev_warn(&pf->pdev->dev,
5317 "FW LLDP agent is already running\n");
5320 case I40E_AQ_RC_EPERM:
5321 dev_warn(&pf->pdev->dev,
5322 "Device configuration forbids SW from starting the LLDP agent.\n");
5324 case I40E_AQ_RC_EAGAIN:
5325 dev_warn(&pf->pdev->dev,
5326 "Stop FW LLDP agent command is still being processed, please try again in a second.\n");
5329 dev_warn(&pf->pdev->dev,
5330 "Starting FW LLDP agent failed: error: %s, %s\n",
5331 i40e_stat_str(&pf->hw,
5333 i40e_aq_str(&pf->hw,
5341 /* Now that we've checked to ensure that the new flags are valid, load
5342 * them into place. Since we only modify flags either (a) during
5343 * initialization or (b) while holding the RTNL lock, we don't need
5344 * anything fancy here.
5346 pf->flags = new_flags;
5348 /* Issue reset to cause things to take effect, as additional bits
5349 * are added we will need to create a mask of bits requiring reset
5352 i40e_do_reset(pf, reset_needed, true);
5358 * i40e_get_module_info - get (Q)SFP+ module type info
5359 * @netdev: network interface device structure
5360 * @modinfo: module EEPROM size and layout information structure
5362 static int i40e_get_module_info(struct net_device *netdev,
5363 struct ethtool_modinfo *modinfo)
5365 struct i40e_netdev_priv *np = netdev_priv(netdev);
5366 struct i40e_vsi *vsi = np->vsi;
5367 struct i40e_pf *pf = vsi->back;
5368 struct i40e_hw *hw = &pf->hw;
5369 u32 sff8472_comp = 0;
5370 u32 sff8472_swap = 0;
5371 u32 sff8636_rev = 0;
5375 /* Check if firmware supports reading module EEPROM. */
5376 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5377 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5381 status = i40e_update_link_info(hw);
5385 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5386 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5390 type = hw->phy.link_info.module_type[0];
5393 case I40E_MODULE_TYPE_SFP:
5394 status = i40e_aq_get_phy_register(hw,
5395 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5396 I40E_I2C_EEPROM_DEV_ADDR, true,
5397 I40E_MODULE_SFF_8472_COMP,
5398 &sff8472_comp, NULL);
5402 status = i40e_aq_get_phy_register(hw,
5403 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5404 I40E_I2C_EEPROM_DEV_ADDR, true,
5405 I40E_MODULE_SFF_8472_SWAP,
5406 &sff8472_swap, NULL);
5410 /* Check if the module requires address swap to access
5411 * the other EEPROM memory page.
5413 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5414 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5415 modinfo->type = ETH_MODULE_SFF_8079;
5416 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5417 } else if (sff8472_comp == 0x00) {
5418 /* Module is not SFF-8472 compliant */
5419 modinfo->type = ETH_MODULE_SFF_8079;
5420 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5421 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5422 /* Module is SFF-8472 compliant but doesn't implement
5423 * Digital Diagnostic Monitoring (DDM).
5425 modinfo->type = ETH_MODULE_SFF_8079;
5426 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5428 modinfo->type = ETH_MODULE_SFF_8472;
5429 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5432 case I40E_MODULE_TYPE_QSFP_PLUS:
5433 /* Read from memory page 0. */
5434 status = i40e_aq_get_phy_register(hw,
5435 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5437 I40E_MODULE_REVISION_ADDR,
5438 &sff8636_rev, NULL);
5441 /* Determine revision compliance byte */
5442 if (sff8636_rev > 0x02) {
5443 /* Module is SFF-8636 compliant */
5444 modinfo->type = ETH_MODULE_SFF_8636;
5445 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5447 modinfo->type = ETH_MODULE_SFF_8436;
5448 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5451 case I40E_MODULE_TYPE_QSFP28:
5452 modinfo->type = ETH_MODULE_SFF_8636;
5453 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5456 netdev_err(vsi->netdev, "Module type unrecognized\n");
5463 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5464 * @netdev: network interface device structure
5465 * @ee: EEPROM dump request structure
5466 * @data: buffer to be filled with EEPROM contents
5468 static int i40e_get_module_eeprom(struct net_device *netdev,
5469 struct ethtool_eeprom *ee,
5472 struct i40e_netdev_priv *np = netdev_priv(netdev);
5473 struct i40e_vsi *vsi = np->vsi;
5474 struct i40e_pf *pf = vsi->back;
5475 struct i40e_hw *hw = &pf->hw;
5476 bool is_sfp = false;
5481 if (!ee || !ee->len || !data)
5484 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5487 for (i = 0; i < ee->len; i++) {
5488 u32 offset = i + ee->offset;
5489 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5491 /* Check if we need to access the other memory page */
5493 if (offset >= ETH_MODULE_SFF_8079_LEN) {
5494 offset -= ETH_MODULE_SFF_8079_LEN;
5495 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5498 while (offset >= ETH_MODULE_SFF_8436_LEN) {
5499 /* Compute memory page number and offset. */
5500 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5505 status = i40e_aq_get_phy_register(hw,
5506 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5507 addr, true, offset, &value, NULL);
5515 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5517 struct i40e_netdev_priv *np = netdev_priv(netdev);
5518 struct i40e_aq_get_phy_abilities_resp phy_cfg;
5519 enum i40e_status_code status = 0;
5520 struct i40e_vsi *vsi = np->vsi;
5521 struct i40e_pf *pf = vsi->back;
5522 struct i40e_hw *hw = &pf->hw;
5524 /* Get initial PHY capabilities */
5525 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5529 /* Check whether NIC configuration is compatible with Energy Efficient
5530 * Ethernet (EEE) mode.
5532 if (phy_cfg.eee_capability == 0)
5535 edata->supported = SUPPORTED_Autoneg;
5536 edata->lp_advertised = edata->supported;
5538 /* Get current configuration */
5539 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5543 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U;
5544 edata->eee_enabled = !!edata->advertised;
5545 edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5547 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5552 static int i40e_is_eee_param_supported(struct net_device *netdev,
5553 struct ethtool_eee *edata)
5555 struct i40e_netdev_priv *np = netdev_priv(netdev);
5556 struct i40e_vsi *vsi = np->vsi;
5557 struct i40e_pf *pf = vsi->back;
5558 struct i40e_ethtool_not_used {
5562 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"},
5563 {edata->tx_lpi_timer, "tx-timer"},
5564 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5568 for (i = 0; i < ARRAY_SIZE(param); i++) {
5569 if (param[i].value) {
5571 "EEE setting %s not supported\n",
5580 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5582 struct i40e_netdev_priv *np = netdev_priv(netdev);
5583 struct i40e_aq_get_phy_abilities_resp abilities;
5584 enum i40e_status_code status = I40E_SUCCESS;
5585 struct i40e_aq_set_phy_config config;
5586 struct i40e_vsi *vsi = np->vsi;
5587 struct i40e_pf *pf = vsi->back;
5588 struct i40e_hw *hw = &pf->hw;
5589 __le16 eee_capability;
5591 /* Deny parameters we don't support */
5592 if (i40e_is_eee_param_supported(netdev, edata))
5595 /* Get initial PHY capabilities */
5596 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5601 /* Check whether NIC configuration is compatible with Energy Efficient
5602 * Ethernet (EEE) mode.
5604 if (abilities.eee_capability == 0)
5607 /* Cache initial EEE capability */
5608 eee_capability = abilities.eee_capability;
5610 /* Get current PHY configuration */
5611 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5616 /* Cache current PHY configuration */
5617 config.phy_type = abilities.phy_type;
5618 config.phy_type_ext = abilities.phy_type_ext;
5619 config.link_speed = abilities.link_speed;
5620 config.abilities = abilities.abilities |
5621 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5622 config.eeer = abilities.eeer_val;
5623 config.low_power_ctrl = abilities.d3_lpan;
5624 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5625 I40E_AQ_PHY_FEC_CONFIG_MASK;
5627 /* Set desired EEE state */
5628 if (edata->eee_enabled) {
5629 config.eee_capability = eee_capability;
5630 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5632 config.eee_capability = 0;
5633 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5636 /* Apply modified PHY configuration */
5637 status = i40e_aq_set_phy_config(hw, &config, NULL);
5644 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5645 .get_drvinfo = i40e_get_drvinfo,
5646 .set_eeprom = i40e_set_eeprom,
5647 .get_eeprom_len = i40e_get_eeprom_len,
5648 .get_eeprom = i40e_get_eeprom,
5651 static const struct ethtool_ops i40e_ethtool_ops = {
5652 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5653 ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
5654 ETHTOOL_COALESCE_USE_ADAPTIVE |
5655 ETHTOOL_COALESCE_RX_USECS_HIGH |
5656 ETHTOOL_COALESCE_TX_USECS_HIGH,
5657 .get_drvinfo = i40e_get_drvinfo,
5658 .get_regs_len = i40e_get_regs_len,
5659 .get_regs = i40e_get_regs,
5660 .nway_reset = i40e_nway_reset,
5661 .get_link = ethtool_op_get_link,
5662 .get_wol = i40e_get_wol,
5663 .set_wol = i40e_set_wol,
5664 .set_eeprom = i40e_set_eeprom,
5665 .get_eeprom_len = i40e_get_eeprom_len,
5666 .get_eeprom = i40e_get_eeprom,
5667 .get_ringparam = i40e_get_ringparam,
5668 .set_ringparam = i40e_set_ringparam,
5669 .get_pauseparam = i40e_get_pauseparam,
5670 .set_pauseparam = i40e_set_pauseparam,
5671 .get_msglevel = i40e_get_msglevel,
5672 .set_msglevel = i40e_set_msglevel,
5673 .get_rxnfc = i40e_get_rxnfc,
5674 .set_rxnfc = i40e_set_rxnfc,
5675 .self_test = i40e_diag_test,
5676 .get_strings = i40e_get_strings,
5677 .get_eee = i40e_get_eee,
5678 .set_eee = i40e_set_eee,
5679 .set_phys_id = i40e_set_phys_id,
5680 .get_sset_count = i40e_get_sset_count,
5681 .get_ethtool_stats = i40e_get_ethtool_stats,
5682 .get_coalesce = i40e_get_coalesce,
5683 .set_coalesce = i40e_set_coalesce,
5684 .get_rxfh_key_size = i40e_get_rxfh_key_size,
5685 .get_rxfh_indir_size = i40e_get_rxfh_indir_size,
5686 .get_rxfh = i40e_get_rxfh,
5687 .set_rxfh = i40e_set_rxfh,
5688 .get_channels = i40e_get_channels,
5689 .set_channels = i40e_set_channels,
5690 .get_module_info = i40e_get_module_info,
5691 .get_module_eeprom = i40e_get_module_eeprom,
5692 .get_ts_info = i40e_get_ts_info,
5693 .get_priv_flags = i40e_get_priv_flags,
5694 .set_priv_flags = i40e_set_priv_flags,
5695 .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5696 .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5697 .get_link_ksettings = i40e_get_link_ksettings,
5698 .set_link_ksettings = i40e_set_link_ksettings,
5699 .get_fecparam = i40e_get_fec_param,
5700 .set_fecparam = i40e_set_fec_param,
5701 .flash_device = i40e_ddp_flash,
5704 void i40e_set_ethtool_ops(struct net_device *netdev)
5706 struct i40e_netdev_priv *np = netdev_priv(netdev);
5707 struct i40e_pf *pf = np->vsi->back;
5709 if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5710 netdev->ethtool_ops = &i40e_ethtool_ops;
5712 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;