Loading...
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4/* ethtool support for i40e */
5
6#include "i40e_devids.h"
7#include "i40e_diag.h"
8#include "i40e_txrx_common.h"
9#include "i40e_virtchnl_pf.h"
10
11/* ethtool statistics helpers */
12
13/**
14 * struct i40e_stats - definition for an ethtool statistic
15 * @stat_string: statistic name to display in ethtool -S output
16 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
17 * @stat_offset: offsetof() the stat from a base pointer
18 *
19 * This structure defines a statistic to be added to the ethtool stats buffer.
20 * It defines a statistic as offset from a common base pointer. Stats should
21 * be defined in constant arrays using the I40E_STAT macro, with every element
22 * of the array using the same _type for calculating the sizeof_stat and
23 * stat_offset.
24 *
25 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
26 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
27 * the i40e_add_ethtool_stat() helper function.
28 *
29 * The @stat_string is interpreted as a format string, allowing formatted
30 * values to be inserted while looping over multiple structures for a given
31 * statistics array. Thus, every statistic string in an array should have the
32 * same type and number of format specifiers, to be formatted by variadic
33 * arguments to the i40e_add_stat_string() helper function.
34 **/
35struct i40e_stats {
36 char stat_string[ETH_GSTRING_LEN];
37 int sizeof_stat;
38 int stat_offset;
39};
40
41/* Helper macro to define an i40e_stat structure with proper size and type.
42 * Use this when defining constant statistics arrays. Note that @_type expects
43 * only a type name and is used multiple times.
44 */
45#define I40E_STAT(_type, _name, _stat) { \
46 .stat_string = _name, \
47 .sizeof_stat = sizeof_field(_type, _stat), \
48 .stat_offset = offsetof(_type, _stat) \
49}
50
51/* Helper macro for defining some statistics directly copied from the netdev
52 * stats structure.
53 */
54#define I40E_NETDEV_STAT(_net_stat) \
55 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
56
57/* Helper macro for defining some statistics related to queues */
58#define I40E_QUEUE_STAT(_name, _stat) \
59 I40E_STAT(struct i40e_ring, _name, _stat)
60
61/* Stats associated with a Tx or Rx ring */
62static const struct i40e_stats i40e_gstrings_queue_stats[] = {
63 I40E_QUEUE_STAT("%s-%u.packets", stats.packets),
64 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes),
65};
66
67/**
68 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
69 * @data: location to store the stat value
70 * @pointer: basis for where to copy from
71 * @stat: the stat definition
72 *
73 * Copies the stat data defined by the pointer and stat structure pair into
74 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and
75 * i40e_add_queue_stats. If the pointer is null, data will be zero'd.
76 */
77static void
78i40e_add_one_ethtool_stat(u64 *data, void *pointer,
79 const struct i40e_stats *stat)
80{
81 char *p;
82
83 if (!pointer) {
84 /* ensure that the ethtool data buffer is zero'd for any stats
85 * which don't have a valid pointer.
86 */
87 *data = 0;
88 return;
89 }
90
91 p = (char *)pointer + stat->stat_offset;
92 switch (stat->sizeof_stat) {
93 case sizeof(u64):
94 *data = *((u64 *)p);
95 break;
96 case sizeof(u32):
97 *data = *((u32 *)p);
98 break;
99 case sizeof(u16):
100 *data = *((u16 *)p);
101 break;
102 case sizeof(u8):
103 *data = *((u8 *)p);
104 break;
105 default:
106 WARN_ONCE(1, "unexpected stat size for %s",
107 stat->stat_string);
108 *data = 0;
109 }
110}
111
112/**
113 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
114 * @data: ethtool stats buffer
115 * @pointer: location to copy stats from
116 * @stats: array of stats to copy
117 * @size: the size of the stats definition
118 *
119 * Copy the stats defined by the stats array using the pointer as a base into
120 * the data buffer supplied by ethtool. Updates the data pointer to point to
121 * the next empty location for successive calls to __i40e_add_ethtool_stats.
122 * If pointer is null, set the data values to zero and update the pointer to
123 * skip these stats.
124 **/
125static void
126__i40e_add_ethtool_stats(u64 **data, void *pointer,
127 const struct i40e_stats stats[],
128 const unsigned int size)
129{
130 unsigned int i;
131
132 for (i = 0; i < size; i++)
133 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
134}
135
136/**
137 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
138 * @data: ethtool stats buffer
139 * @pointer: location where stats are stored
140 * @stats: static const array of stat definitions
141 *
142 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
143 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
144 * ensuring that we pass the size associated with the given stats array.
145 *
146 * The parameter @stats is evaluated twice, so parameters with side effects
147 * should be avoided.
148 **/
149#define i40e_add_ethtool_stats(data, pointer, stats) \
150 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
151
152/**
153 * i40e_add_queue_stats - copy queue statistics into supplied buffer
154 * @data: ethtool stats buffer
155 * @ring: the ring to copy
156 *
157 * Queue statistics must be copied while protected by
158 * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats.
159 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
160 * ring pointer is null, zero out the queue stat values and update the data
161 * pointer. Otherwise safely copy the stats from the ring into the supplied
162 * buffer and update the data pointer when finished.
163 *
164 * This function expects to be called while under rcu_read_lock().
165 **/
166static void
167i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
168{
169 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
170 const struct i40e_stats *stats = i40e_gstrings_queue_stats;
171 unsigned int start;
172 unsigned int i;
173
174 /* To avoid invalid statistics values, ensure that we keep retrying
175 * the copy until we get a consistent value according to
176 * u64_stats_fetch_retry. But first, make sure our ring is
177 * non-null before attempting to access its syncp.
178 */
179 do {
180 start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp);
181 for (i = 0; i < size; i++) {
182 i40e_add_one_ethtool_stat(&(*data)[i], ring,
183 &stats[i]);
184 }
185 } while (ring && u64_stats_fetch_retry(&ring->syncp, start));
186
187 /* Once we successfully copy the stats in, update the data pointer */
188 *data += size;
189}
190
191/**
192 * __i40e_add_stat_strings - copy stat strings into ethtool buffer
193 * @p: ethtool supplied buffer
194 * @stats: stat definitions array
195 * @size: size of the stats array
196 *
197 * Format and copy the strings described by stats into the buffer pointed at
198 * by p.
199 **/
200static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
201 const unsigned int size, ...)
202{
203 unsigned int i;
204
205 for (i = 0; i < size; i++) {
206 va_list args;
207
208 va_start(args, size);
209 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
210 *p += ETH_GSTRING_LEN;
211 va_end(args);
212 }
213}
214
215/**
216 * i40e_add_stat_strings - copy stat strings into ethtool buffer
217 * @p: ethtool supplied buffer
218 * @stats: stat definitions array
219 *
220 * Format and copy the strings described by the const static stats value into
221 * the buffer pointed at by p.
222 *
223 * The parameter @stats is evaluated twice, so parameters with side effects
224 * should be avoided. Additionally, stats must be an array such that
225 * ARRAY_SIZE can be called on it.
226 **/
227#define i40e_add_stat_strings(p, stats, ...) \
228 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
229
230#define I40E_PF_STAT(_name, _stat) \
231 I40E_STAT(struct i40e_pf, _name, _stat)
232#define I40E_VSI_STAT(_name, _stat) \
233 I40E_STAT(struct i40e_vsi, _name, _stat)
234#define I40E_VEB_STAT(_name, _stat) \
235 I40E_STAT(struct i40e_veb, _name, _stat)
236#define I40E_VEB_TC_STAT(_name, _stat) \
237 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat)
238#define I40E_PFC_STAT(_name, _stat) \
239 I40E_STAT(struct i40e_pfc_stats, _name, _stat)
240
241static const struct i40e_stats i40e_gstrings_net_stats[] = {
242 I40E_NETDEV_STAT(rx_packets),
243 I40E_NETDEV_STAT(tx_packets),
244 I40E_NETDEV_STAT(rx_bytes),
245 I40E_NETDEV_STAT(tx_bytes),
246 I40E_NETDEV_STAT(rx_errors),
247 I40E_NETDEV_STAT(tx_errors),
248 I40E_NETDEV_STAT(rx_dropped),
249 I40E_NETDEV_STAT(rx_missed_errors),
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),
254};
255
256static 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),
269};
270
271struct i40e_cp_veb_tc_stats {
272 u64 tc_rx_packets;
273 u64 tc_rx_bytes;
274 u64 tc_tx_packets;
275 u64 tc_tx_bytes;
276};
277
278static 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),
283};
284
285static 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),
304};
305
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.
312 *
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.
315 */
316static 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_discards", 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),
368
369 /* LPI stats */
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),
374};
375
376struct i40e_pfc_stats {
377 u64 priority_xon_rx;
378 u64 priority_xoff_rx;
379 u64 priority_xon_tx;
380 u64 priority_xoff_tx;
381 u64 priority_xon_2_xoff;
382};
383
384static 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),
390};
391
392#define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats)
393
394#define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats)
395
396#define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
397
398#define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
399 I40E_MAX_USER_PRIORITY)
400
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))
404
405#define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats)
406
407#define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \
408 I40E_PFC_STATS_LEN + \
409 I40E_VEB_STATS_LEN + \
410 I40E_VSI_STATS_LEN)
411
412/* Length of stats for a single queue */
413#define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats)
414
415enum i40e_ethtool_test_id {
416 I40E_ETH_TEST_REG = 0,
417 I40E_ETH_TEST_EEPROM,
418 I40E_ETH_TEST_INTR,
419 I40E_ETH_TEST_LINK,
420};
421
422static 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)"
427};
428
429#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
430
431struct i40e_priv_flags {
432 char flag_string[ETH_GSTRING_LEN];
433 u8 bitno;
434 bool read_only;
435};
436
437#define I40E_PRIV_FLAG(_name, _bitno, _read_only) { \
438 .flag_string = _name, \
439 .bitno = _bitno, \
440 .read_only = _read_only, \
441}
442
443static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
444 /* NOTE: MFP setting cannot be changed */
445 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENA, 1),
446 I40E_PRIV_FLAG("total-port-shutdown",
447 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, 1),
448 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENA, 0),
449 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENA, 0),
450 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENA, 0),
451 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENA, 0),
452 I40E_PRIV_FLAG("link-down-on-close",
453 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, 0),
454 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX_ENA, 0),
455 I40E_PRIV_FLAG("disable-source-pruning",
456 I40E_FLAG_SOURCE_PRUNING_DIS, 0),
457 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_FW_LLDP_DIS, 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),
460 I40E_PRIV_FLAG("vf-vlan-pruning",
461 I40E_FLAG_VF_VLAN_PRUNING_ENA, 0),
462};
463
464#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
465
466/* Private flags with a global effect, restricted to PF 0 */
467static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
468 I40E_PRIV_FLAG("vf-true-promisc-support",
469 I40E_FLAG_TRUE_PROMISC_ENA, 0),
470};
471
472#define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
473
474/**
475 * i40e_partition_setting_complaint - generic complaint for MFP restriction
476 * @pf: the PF struct
477 **/
478static void i40e_partition_setting_complaint(struct i40e_pf *pf)
479{
480 dev_info(&pf->pdev->dev,
481 "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");
482}
483
484/**
485 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
486 * @pf: PF struct with phy_types
487 * @ks: ethtool link ksettings struct to fill out
488 *
489 **/
490static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
491 struct ethtool_link_ksettings *ks)
492{
493 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
494 u64 phy_types = pf->hw.phy.phy_types;
495
496 ethtool_link_ksettings_zero_link_mode(ks, supported);
497 ethtool_link_ksettings_zero_link_mode(ks, advertising);
498
499 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
500 ethtool_link_ksettings_add_link_mode(ks, supported,
501 1000baseT_Full);
502 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
503 ethtool_link_ksettings_add_link_mode(ks, advertising,
504 1000baseT_Full);
505 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) {
506 ethtool_link_ksettings_add_link_mode(ks, supported,
507 100baseT_Full);
508 ethtool_link_ksettings_add_link_mode(ks, advertising,
509 100baseT_Full);
510 }
511 }
512 if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
513 phy_types & I40E_CAP_PHY_TYPE_XFI ||
514 phy_types & I40E_CAP_PHY_TYPE_SFI ||
515 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
516 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
517 ethtool_link_ksettings_add_link_mode(ks, supported,
518 10000baseT_Full);
519 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
520 ethtool_link_ksettings_add_link_mode(ks, advertising,
521 10000baseT_Full);
522 }
523 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
524 ethtool_link_ksettings_add_link_mode(ks, supported,
525 10000baseT_Full);
526 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
527 ethtool_link_ksettings_add_link_mode(ks, advertising,
528 10000baseT_Full);
529 }
530 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
531 ethtool_link_ksettings_add_link_mode(ks, supported,
532 2500baseT_Full);
533 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
534 ethtool_link_ksettings_add_link_mode(ks, advertising,
535 2500baseT_Full);
536 }
537 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
538 ethtool_link_ksettings_add_link_mode(ks, supported,
539 5000baseT_Full);
540 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
541 ethtool_link_ksettings_add_link_mode(ks, advertising,
542 5000baseT_Full);
543 }
544 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
545 phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
546 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
547 ethtool_link_ksettings_add_link_mode(ks, supported,
548 40000baseCR4_Full);
549 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
550 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
551 ethtool_link_ksettings_add_link_mode(ks, supported,
552 40000baseCR4_Full);
553 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
554 ethtool_link_ksettings_add_link_mode(ks, advertising,
555 40000baseCR4_Full);
556 }
557 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
558 ethtool_link_ksettings_add_link_mode(ks, supported,
559 100baseT_Full);
560 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
561 ethtool_link_ksettings_add_link_mode(ks, advertising,
562 100baseT_Full);
563 }
564 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
565 ethtool_link_ksettings_add_link_mode(ks, supported,
566 1000baseT_Full);
567 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
568 ethtool_link_ksettings_add_link_mode(ks, advertising,
569 1000baseT_Full);
570 }
571 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
572 ethtool_link_ksettings_add_link_mode(ks, supported,
573 40000baseSR4_Full);
574 ethtool_link_ksettings_add_link_mode(ks, advertising,
575 40000baseSR4_Full);
576 }
577 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
578 ethtool_link_ksettings_add_link_mode(ks, supported,
579 40000baseLR4_Full);
580 ethtool_link_ksettings_add_link_mode(ks, advertising,
581 40000baseLR4_Full);
582 }
583 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
584 ethtool_link_ksettings_add_link_mode(ks, supported,
585 40000baseKR4_Full);
586 ethtool_link_ksettings_add_link_mode(ks, advertising,
587 40000baseKR4_Full);
588 }
589 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
590 ethtool_link_ksettings_add_link_mode(ks, supported,
591 20000baseKR2_Full);
592 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
593 ethtool_link_ksettings_add_link_mode(ks, advertising,
594 20000baseKR2_Full);
595 }
596 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
597 ethtool_link_ksettings_add_link_mode(ks, supported,
598 10000baseKX4_Full);
599 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
600 ethtool_link_ksettings_add_link_mode(ks, advertising,
601 10000baseKX4_Full);
602 }
603 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
604 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) {
605 ethtool_link_ksettings_add_link_mode(ks, supported,
606 10000baseKR_Full);
607 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
608 ethtool_link_ksettings_add_link_mode(ks, advertising,
609 10000baseKR_Full);
610 }
611 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
612 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) {
613 ethtool_link_ksettings_add_link_mode(ks, supported,
614 1000baseKX_Full);
615 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
616 ethtool_link_ksettings_add_link_mode(ks, advertising,
617 1000baseKX_Full);
618 }
619 /* need to add 25G PHY types */
620 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
621 ethtool_link_ksettings_add_link_mode(ks, supported,
622 25000baseKR_Full);
623 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
624 ethtool_link_ksettings_add_link_mode(ks, advertising,
625 25000baseKR_Full);
626 }
627 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
628 ethtool_link_ksettings_add_link_mode(ks, supported,
629 25000baseCR_Full);
630 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
631 ethtool_link_ksettings_add_link_mode(ks, advertising,
632 25000baseCR_Full);
633 }
634 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
636 ethtool_link_ksettings_add_link_mode(ks, supported,
637 25000baseSR_Full);
638 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
639 ethtool_link_ksettings_add_link_mode(ks, advertising,
640 25000baseSR_Full);
641 }
642 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
643 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
644 ethtool_link_ksettings_add_link_mode(ks, supported,
645 25000baseCR_Full);
646 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
647 ethtool_link_ksettings_add_link_mode(ks, advertising,
648 25000baseCR_Full);
649 }
650 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
651 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
652 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
653 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
654 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
655 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
656 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
657 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
658 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
659 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
660 ethtool_link_ksettings_add_link_mode(ks, advertising,
661 FEC_NONE);
662 ethtool_link_ksettings_add_link_mode(ks, advertising,
663 FEC_RS);
664 ethtool_link_ksettings_add_link_mode(ks, advertising,
665 FEC_BASER);
666 }
667 }
668 /* need to add new 10G PHY types */
669 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
670 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
671 ethtool_link_ksettings_add_link_mode(ks, supported,
672 10000baseCR_Full);
673 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
674 ethtool_link_ksettings_add_link_mode(ks, advertising,
675 10000baseCR_Full);
676 }
677 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
678 ethtool_link_ksettings_add_link_mode(ks, supported,
679 10000baseSR_Full);
680 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
681 ethtool_link_ksettings_add_link_mode(ks, advertising,
682 10000baseSR_Full);
683 }
684 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
685 ethtool_link_ksettings_add_link_mode(ks, supported,
686 10000baseLR_Full);
687 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
688 ethtool_link_ksettings_add_link_mode(ks, advertising,
689 10000baseLR_Full);
690 }
691 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
692 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
693 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
694 ethtool_link_ksettings_add_link_mode(ks, supported,
695 1000baseX_Full);
696 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
697 ethtool_link_ksettings_add_link_mode(ks, advertising,
698 1000baseX_Full);
699 }
700 /* Autoneg PHY types */
701 if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
702 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
703 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
704 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
705 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
706 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
707 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
708 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
709 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
710 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
711 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
712 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
715 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
716 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
717 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
718 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
719 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
720 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
721 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
722 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
723 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
724 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
725 ethtool_link_ksettings_add_link_mode(ks, supported,
726 Autoneg);
727 ethtool_link_ksettings_add_link_mode(ks, advertising,
728 Autoneg);
729 }
730}
731
732/**
733 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
734 * @req_fec_info: mask request FEC info
735 * @ks: ethtool ksettings to fill in
736 **/
737static void i40e_get_settings_link_up_fec(u8 req_fec_info,
738 struct ethtool_link_ksettings *ks)
739{
740 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
741 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
742 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
743
744 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
745 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
746 ethtool_link_ksettings_add_link_mode(ks, advertising,
747 FEC_NONE);
748 ethtool_link_ksettings_add_link_mode(ks, advertising,
749 FEC_BASER);
750 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
751 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
752 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
753 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
754 ethtool_link_ksettings_add_link_mode(ks, advertising,
755 FEC_BASER);
756 } else {
757 ethtool_link_ksettings_add_link_mode(ks, advertising,
758 FEC_NONE);
759 }
760}
761
762/**
763 * i40e_get_settings_link_up - Get the Link settings for when link is up
764 * @hw: hw structure
765 * @ks: ethtool ksettings to fill in
766 * @netdev: network interface device structure
767 * @pf: pointer to physical function struct
768 **/
769static void i40e_get_settings_link_up(struct i40e_hw *hw,
770 struct ethtool_link_ksettings *ks,
771 struct net_device *netdev,
772 struct i40e_pf *pf)
773{
774 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
775 struct ethtool_link_ksettings cap_ksettings;
776 u32 link_speed = hw_link_info->link_speed;
777
778 /* Initialize supported and advertised settings based on phy settings */
779 switch (hw_link_info->phy_type) {
780 case I40E_PHY_TYPE_40GBASE_CR4:
781 case I40E_PHY_TYPE_40GBASE_CR4_CU:
782 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
783 ethtool_link_ksettings_add_link_mode(ks, supported,
784 40000baseCR4_Full);
785 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
786 ethtool_link_ksettings_add_link_mode(ks, advertising,
787 40000baseCR4_Full);
788 break;
789 case I40E_PHY_TYPE_XLAUI:
790 case I40E_PHY_TYPE_XLPPI:
791 case I40E_PHY_TYPE_40GBASE_AOC:
792 ethtool_link_ksettings_add_link_mode(ks, supported,
793 40000baseCR4_Full);
794 ethtool_link_ksettings_add_link_mode(ks, advertising,
795 40000baseCR4_Full);
796 break;
797 case I40E_PHY_TYPE_40GBASE_SR4:
798 ethtool_link_ksettings_add_link_mode(ks, supported,
799 40000baseSR4_Full);
800 ethtool_link_ksettings_add_link_mode(ks, advertising,
801 40000baseSR4_Full);
802 break;
803 case I40E_PHY_TYPE_40GBASE_LR4:
804 ethtool_link_ksettings_add_link_mode(ks, supported,
805 40000baseLR4_Full);
806 ethtool_link_ksettings_add_link_mode(ks, advertising,
807 40000baseLR4_Full);
808 break;
809 case I40E_PHY_TYPE_25GBASE_SR:
810 case I40E_PHY_TYPE_25GBASE_LR:
811 case I40E_PHY_TYPE_10GBASE_SR:
812 case I40E_PHY_TYPE_10GBASE_LR:
813 case I40E_PHY_TYPE_1000BASE_SX:
814 case I40E_PHY_TYPE_1000BASE_LX:
815 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
816 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
817 ethtool_link_ksettings_add_link_mode(ks, supported,
818 25000baseSR_Full);
819 ethtool_link_ksettings_add_link_mode(ks, advertising,
820 25000baseSR_Full);
821 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
822 ethtool_link_ksettings_add_link_mode(ks, supported,
823 10000baseSR_Full);
824 ethtool_link_ksettings_add_link_mode(ks, advertising,
825 10000baseSR_Full);
826 ethtool_link_ksettings_add_link_mode(ks, supported,
827 10000baseLR_Full);
828 ethtool_link_ksettings_add_link_mode(ks, advertising,
829 10000baseLR_Full);
830 ethtool_link_ksettings_add_link_mode(ks, supported,
831 1000baseX_Full);
832 ethtool_link_ksettings_add_link_mode(ks, advertising,
833 1000baseX_Full);
834 ethtool_link_ksettings_add_link_mode(ks, supported,
835 10000baseT_Full);
836 if (hw_link_info->module_type[2] &
837 I40E_MODULE_TYPE_1000BASE_SX ||
838 hw_link_info->module_type[2] &
839 I40E_MODULE_TYPE_1000BASE_LX) {
840 ethtool_link_ksettings_add_link_mode(ks, supported,
841 1000baseT_Full);
842 if (hw_link_info->requested_speeds &
843 I40E_LINK_SPEED_1GB)
844 ethtool_link_ksettings_add_link_mode(
845 ks, advertising, 1000baseT_Full);
846 }
847 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
848 ethtool_link_ksettings_add_link_mode(ks, advertising,
849 10000baseT_Full);
850 break;
851 case I40E_PHY_TYPE_10GBASE_T:
852 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS:
853 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS:
854 case I40E_PHY_TYPE_1000BASE_T:
855 case I40E_PHY_TYPE_100BASE_TX:
856 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
857 ethtool_link_ksettings_add_link_mode(ks, supported,
858 10000baseT_Full);
859 ethtool_link_ksettings_add_link_mode(ks, supported,
860 5000baseT_Full);
861 ethtool_link_ksettings_add_link_mode(ks, supported,
862 2500baseT_Full);
863 ethtool_link_ksettings_add_link_mode(ks, supported,
864 1000baseT_Full);
865 ethtool_link_ksettings_add_link_mode(ks, supported,
866 100baseT_Full);
867 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
868 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
869 ethtool_link_ksettings_add_link_mode(ks, advertising,
870 10000baseT_Full);
871 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
872 ethtool_link_ksettings_add_link_mode(ks, advertising,
873 5000baseT_Full);
874 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
875 ethtool_link_ksettings_add_link_mode(ks, advertising,
876 2500baseT_Full);
877 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
878 ethtool_link_ksettings_add_link_mode(ks, advertising,
879 1000baseT_Full);
880 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
881 ethtool_link_ksettings_add_link_mode(ks, advertising,
882 100baseT_Full);
883 break;
884 case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
885 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
886 ethtool_link_ksettings_add_link_mode(ks, supported,
887 1000baseT_Full);
888 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
889 ethtool_link_ksettings_add_link_mode(ks, advertising,
890 1000baseT_Full);
891 break;
892 case I40E_PHY_TYPE_10GBASE_CR1_CU:
893 case I40E_PHY_TYPE_10GBASE_CR1:
894 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
895 ethtool_link_ksettings_add_link_mode(ks, supported,
896 10000baseT_Full);
897 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
898 ethtool_link_ksettings_add_link_mode(ks, advertising,
899 10000baseT_Full);
900 break;
901 case I40E_PHY_TYPE_XAUI:
902 case I40E_PHY_TYPE_XFI:
903 case I40E_PHY_TYPE_SFI:
904 case I40E_PHY_TYPE_10GBASE_SFPP_CU:
905 case I40E_PHY_TYPE_10GBASE_AOC:
906 ethtool_link_ksettings_add_link_mode(ks, supported,
907 10000baseT_Full);
908 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
909 ethtool_link_ksettings_add_link_mode(ks, advertising,
910 10000baseT_Full);
911 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
912 break;
913 case I40E_PHY_TYPE_SGMII:
914 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
915 ethtool_link_ksettings_add_link_mode(ks, supported,
916 1000baseT_Full);
917 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
918 ethtool_link_ksettings_add_link_mode(ks, advertising,
919 1000baseT_Full);
920 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) {
921 ethtool_link_ksettings_add_link_mode(ks, supported,
922 100baseT_Full);
923 if (hw_link_info->requested_speeds &
924 I40E_LINK_SPEED_100MB)
925 ethtool_link_ksettings_add_link_mode(
926 ks, advertising, 100baseT_Full);
927 }
928 break;
929 case I40E_PHY_TYPE_40GBASE_KR4:
930 case I40E_PHY_TYPE_25GBASE_KR:
931 case I40E_PHY_TYPE_20GBASE_KR2:
932 case I40E_PHY_TYPE_10GBASE_KR:
933 case I40E_PHY_TYPE_10GBASE_KX4:
934 case I40E_PHY_TYPE_1000BASE_KX:
935 ethtool_link_ksettings_add_link_mode(ks, supported,
936 40000baseKR4_Full);
937 ethtool_link_ksettings_add_link_mode(ks, supported,
938 25000baseKR_Full);
939 ethtool_link_ksettings_add_link_mode(ks, supported,
940 20000baseKR2_Full);
941 ethtool_link_ksettings_add_link_mode(ks, supported,
942 10000baseKR_Full);
943 ethtool_link_ksettings_add_link_mode(ks, supported,
944 10000baseKX4_Full);
945 ethtool_link_ksettings_add_link_mode(ks, supported,
946 1000baseKX_Full);
947 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
948 ethtool_link_ksettings_add_link_mode(ks, advertising,
949 40000baseKR4_Full);
950 ethtool_link_ksettings_add_link_mode(ks, advertising,
951 25000baseKR_Full);
952 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
953 ethtool_link_ksettings_add_link_mode(ks, advertising,
954 20000baseKR2_Full);
955 ethtool_link_ksettings_add_link_mode(ks, advertising,
956 10000baseKR_Full);
957 ethtool_link_ksettings_add_link_mode(ks, advertising,
958 10000baseKX4_Full);
959 ethtool_link_ksettings_add_link_mode(ks, advertising,
960 1000baseKX_Full);
961 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
962 break;
963 case I40E_PHY_TYPE_25GBASE_CR:
964 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
965 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
966 ethtool_link_ksettings_add_link_mode(ks, supported,
967 25000baseCR_Full);
968 ethtool_link_ksettings_add_link_mode(ks, advertising,
969 25000baseCR_Full);
970 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
971
972 break;
973 case I40E_PHY_TYPE_25GBASE_AOC:
974 case I40E_PHY_TYPE_25GBASE_ACC:
975 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
976 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
977 ethtool_link_ksettings_add_link_mode(ks, supported,
978 25000baseCR_Full);
979 ethtool_link_ksettings_add_link_mode(ks, advertising,
980 25000baseCR_Full);
981 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
982
983 ethtool_link_ksettings_add_link_mode(ks, supported,
984 10000baseCR_Full);
985 ethtool_link_ksettings_add_link_mode(ks, advertising,
986 10000baseCR_Full);
987 break;
988 default:
989 /* if we got here and link is up something bad is afoot */
990 netdev_info(netdev,
991 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n",
992 hw_link_info->phy_type);
993 }
994
995 /* Now that we've worked out everything that could be supported by the
996 * current PHY type, get what is supported by the NVM and intersect
997 * them to get what is truly supported
998 */
999 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
1000 i40e_phy_type_to_ethtool(pf, &cap_ksettings);
1001 ethtool_intersect_link_masks(ks, &cap_ksettings);
1002
1003 /* Set speed and duplex */
1004 switch (link_speed) {
1005 case I40E_LINK_SPEED_40GB:
1006 ks->base.speed = SPEED_40000;
1007 break;
1008 case I40E_LINK_SPEED_25GB:
1009 ks->base.speed = SPEED_25000;
1010 break;
1011 case I40E_LINK_SPEED_20GB:
1012 ks->base.speed = SPEED_20000;
1013 break;
1014 case I40E_LINK_SPEED_10GB:
1015 ks->base.speed = SPEED_10000;
1016 break;
1017 case I40E_LINK_SPEED_5GB:
1018 ks->base.speed = SPEED_5000;
1019 break;
1020 case I40E_LINK_SPEED_2_5GB:
1021 ks->base.speed = SPEED_2500;
1022 break;
1023 case I40E_LINK_SPEED_1GB:
1024 ks->base.speed = SPEED_1000;
1025 break;
1026 case I40E_LINK_SPEED_100MB:
1027 ks->base.speed = SPEED_100;
1028 break;
1029 default:
1030 ks->base.speed = SPEED_UNKNOWN;
1031 break;
1032 }
1033 ks->base.duplex = DUPLEX_FULL;
1034}
1035
1036/**
1037 * i40e_get_settings_link_down - Get the Link settings for when link is down
1038 * @hw: hw structure
1039 * @ks: ethtool ksettings to fill in
1040 * @pf: pointer to physical function struct
1041 *
1042 * Reports link settings that can be determined when link is down
1043 **/
1044static void i40e_get_settings_link_down(struct i40e_hw *hw,
1045 struct ethtool_link_ksettings *ks,
1046 struct i40e_pf *pf)
1047{
1048 /* link is down and the driver needs to fall back on
1049 * supported phy types to figure out what info to display
1050 */
1051 i40e_phy_type_to_ethtool(pf, ks);
1052
1053 /* With no link speed and duplex are unknown */
1054 ks->base.speed = SPEED_UNKNOWN;
1055 ks->base.duplex = DUPLEX_UNKNOWN;
1056}
1057
1058/**
1059 * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1060 * @netdev: network interface device structure
1061 * @ks: ethtool ksettings
1062 *
1063 * Reports speed/duplex settings based on media_type
1064 **/
1065static int i40e_get_link_ksettings(struct net_device *netdev,
1066 struct ethtool_link_ksettings *ks)
1067{
1068 struct i40e_netdev_priv *np = netdev_priv(netdev);
1069 struct i40e_pf *pf = np->vsi->back;
1070 struct i40e_hw *hw = &pf->hw;
1071 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1072 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1073
1074 ethtool_link_ksettings_zero_link_mode(ks, supported);
1075 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1076
1077 if (link_up)
1078 i40e_get_settings_link_up(hw, ks, netdev, pf);
1079 else
1080 i40e_get_settings_link_down(hw, ks, pf);
1081
1082 /* Now set the settings that don't rely on link being up/down */
1083 /* Set autoneg settings */
1084 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1085 AUTONEG_ENABLE : AUTONEG_DISABLE);
1086
1087 /* Set media type settings */
1088 switch (hw->phy.media_type) {
1089 case I40E_MEDIA_TYPE_BACKPLANE:
1090 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1091 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1092 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1093 ethtool_link_ksettings_add_link_mode(ks, advertising,
1094 Backplane);
1095 ks->base.port = PORT_NONE;
1096 break;
1097 case I40E_MEDIA_TYPE_BASET:
1098 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1099 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1100 ks->base.port = PORT_TP;
1101 break;
1102 case I40E_MEDIA_TYPE_DA:
1103 case I40E_MEDIA_TYPE_CX4:
1104 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1105 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1106 ks->base.port = PORT_DA;
1107 break;
1108 case I40E_MEDIA_TYPE_FIBER:
1109 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1110 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1111 ks->base.port = PORT_FIBRE;
1112 break;
1113 case I40E_MEDIA_TYPE_UNKNOWN:
1114 default:
1115 ks->base.port = PORT_OTHER;
1116 break;
1117 }
1118
1119 /* Set flow control settings */
1120 ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1121 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause);
1122
1123 switch (hw->fc.requested_mode) {
1124 case I40E_FC_FULL:
1125 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1126 break;
1127 case I40E_FC_TX_PAUSE:
1128 ethtool_link_ksettings_add_link_mode(ks, advertising,
1129 Asym_Pause);
1130 break;
1131 case I40E_FC_RX_PAUSE:
1132 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1133 ethtool_link_ksettings_add_link_mode(ks, advertising,
1134 Asym_Pause);
1135 break;
1136 default:
1137 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1138 ethtool_link_ksettings_del_link_mode(ks, advertising,
1139 Asym_Pause);
1140 break;
1141 }
1142
1143 return 0;
1144}
1145
1146#define I40E_LBIT_SIZE 8
1147/**
1148 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed
1149 * @speed: speed in decimal
1150 * @ks: ethtool ksettings
1151 *
1152 * Return i40e_aq_link_speed based on speed
1153 **/
1154static enum i40e_aq_link_speed
1155i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks)
1156{
1157 enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN;
1158 bool speed_changed = false;
1159 int i, j;
1160
1161 static const struct {
1162 __u32 speed;
1163 enum i40e_aq_link_speed link_speed;
1164 __u8 bit[I40E_LBIT_SIZE];
1165 } i40e_speed_lut[] = {
1166#define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT
1167 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} },
1168 {SPEED_1000, I40E_LINK_SPEED_1GB,
1169 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX),
1170 I40E_LBIT(1000baseKX)} },
1171 {SPEED_10000, I40E_LINK_SPEED_10GB,
1172 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR),
1173 I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR),
1174 I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} },
1175
1176 {SPEED_25000, I40E_LINK_SPEED_25GB,
1177 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR),
1178 I40E_LBIT(25000baseSR)} },
1179 {SPEED_40000, I40E_LINK_SPEED_40GB,
1180 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4),
1181 I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} },
1182 {SPEED_20000, I40E_LINK_SPEED_20GB,
1183 {I40E_LBIT(20000baseKR2)} },
1184 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} },
1185 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} }
1186#undef I40E_LBIT
1187};
1188
1189 for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) {
1190 if (i40e_speed_lut[i].speed == speed) {
1191 for (j = 0; j < I40E_LBIT_SIZE; j++) {
1192 if (test_bit(i40e_speed_lut[i].bit[j],
1193 ks->link_modes.supported)) {
1194 speed_changed = true;
1195 break;
1196 }
1197 if (!i40e_speed_lut[i].bit[j])
1198 break;
1199 }
1200 if (speed_changed) {
1201 link_speed = i40e_speed_lut[i].link_speed;
1202 break;
1203 }
1204 }
1205 }
1206 return link_speed;
1207}
1208
1209#undef I40E_LBIT_SIZE
1210
1211/**
1212 * i40e_set_link_ksettings - Set Speed and Duplex
1213 * @netdev: network interface device structure
1214 * @ks: ethtool ksettings
1215 *
1216 * Set speed/duplex per media_types advertised/forced
1217 **/
1218static int i40e_set_link_ksettings(struct net_device *netdev,
1219 const struct ethtool_link_ksettings *ks)
1220{
1221 struct i40e_netdev_priv *np = netdev_priv(netdev);
1222 struct i40e_aq_get_phy_abilities_resp abilities;
1223 struct ethtool_link_ksettings safe_ks;
1224 struct ethtool_link_ksettings copy_ks;
1225 struct i40e_aq_set_phy_config config;
1226 struct i40e_pf *pf = np->vsi->back;
1227 enum i40e_aq_link_speed link_speed;
1228 struct i40e_vsi *vsi = np->vsi;
1229 struct i40e_hw *hw = &pf->hw;
1230 bool autoneg_changed = false;
1231 int timeout = 50;
1232 int status = 0;
1233 int err = 0;
1234 __u32 speed;
1235 u8 autoneg;
1236
1237 /* Changing port settings is not supported if this isn't the
1238 * port's controlling PF
1239 */
1240 if (hw->partition_id != 1) {
1241 i40e_partition_setting_complaint(pf);
1242 return -EOPNOTSUPP;
1243 }
1244 if (vsi != pf->vsi[pf->lan_vsi])
1245 return -EOPNOTSUPP;
1246 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1247 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1248 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1249 hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1250 hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1251 return -EOPNOTSUPP;
1252 if (hw->device_id == I40E_DEV_ID_KX_B ||
1253 hw->device_id == I40E_DEV_ID_KX_C ||
1254 hw->device_id == I40E_DEV_ID_20G_KR2 ||
1255 hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1256 hw->device_id == I40E_DEV_ID_25G_B ||
1257 hw->device_id == I40E_DEV_ID_KX_X722) {
1258 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1259 return -EOPNOTSUPP;
1260 }
1261
1262 /* copy the ksettings to copy_ks to avoid modifying the origin */
1263 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings));
1264
1265 /* save autoneg out of ksettings */
1266 autoneg = copy_ks.base.autoneg;
1267 speed = copy_ks.base.speed;
1268
1269 /* get our own copy of the bits to check against */
1270 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1271 safe_ks.base.cmd = copy_ks.base.cmd;
1272 safe_ks.base.link_mode_masks_nwords =
1273 copy_ks.base.link_mode_masks_nwords;
1274 i40e_get_link_ksettings(netdev, &safe_ks);
1275
1276 /* Get link modes supported by hardware and check against modes
1277 * requested by the user. Return an error if unsupported mode was set.
1278 */
1279 if (!bitmap_subset(copy_ks.link_modes.advertising,
1280 safe_ks.link_modes.supported,
1281 __ETHTOOL_LINK_MODE_MASK_NBITS))
1282 return -EINVAL;
1283
1284 /* set autoneg back to what it currently is */
1285 copy_ks.base.autoneg = safe_ks.base.autoneg;
1286 copy_ks.base.speed = safe_ks.base.speed;
1287
1288 /* If copy_ks.base and safe_ks.base are not the same now, then they are
1289 * trying to set something that we do not support.
1290 */
1291 if (memcmp(©_ks.base, &safe_ks.base,
1292 sizeof(struct ethtool_link_settings))) {
1293 netdev_err(netdev, "Only speed and autoneg are supported.\n");
1294 return -EOPNOTSUPP;
1295 }
1296
1297 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1298 timeout--;
1299 if (!timeout)
1300 return -EBUSY;
1301 usleep_range(1000, 2000);
1302 }
1303
1304 /* Get the current phy config */
1305 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1306 NULL);
1307 if (status) {
1308 err = -EAGAIN;
1309 goto done;
1310 }
1311
1312 /* Copy abilities to config in case autoneg is not
1313 * set below
1314 */
1315 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1316 config.abilities = abilities.abilities;
1317
1318 /* Check autoneg */
1319 if (autoneg == AUTONEG_ENABLE) {
1320 /* If autoneg was not already enabled */
1321 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1322 /* If autoneg is not supported, return error */
1323 if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1324 supported,
1325 Autoneg)) {
1326 netdev_info(netdev, "Autoneg not supported on this phy\n");
1327 err = -EINVAL;
1328 goto done;
1329 }
1330 /* Autoneg is allowed to change */
1331 config.abilities = abilities.abilities |
1332 I40E_AQ_PHY_ENABLE_AN;
1333 autoneg_changed = true;
1334 }
1335 } else {
1336 /* If autoneg is currently enabled */
1337 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1338 /* If autoneg is supported 10GBASE_T is the only PHY
1339 * that can disable it, so otherwise return error
1340 */
1341 if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1342 supported,
1343 Autoneg) &&
1344 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
1345 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1346 err = -EINVAL;
1347 goto done;
1348 }
1349 /* Autoneg is allowed to change */
1350 config.abilities = abilities.abilities &
1351 ~I40E_AQ_PHY_ENABLE_AN;
1352 autoneg_changed = true;
1353 }
1354 }
1355
1356 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1357 100baseT_Full))
1358 config.link_speed |= I40E_LINK_SPEED_100MB;
1359 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1360 1000baseT_Full) ||
1361 ethtool_link_ksettings_test_link_mode(ks, advertising,
1362 1000baseX_Full) ||
1363 ethtool_link_ksettings_test_link_mode(ks, advertising,
1364 1000baseKX_Full))
1365 config.link_speed |= I40E_LINK_SPEED_1GB;
1366 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1367 10000baseT_Full) ||
1368 ethtool_link_ksettings_test_link_mode(ks, advertising,
1369 10000baseKX4_Full) ||
1370 ethtool_link_ksettings_test_link_mode(ks, advertising,
1371 10000baseKR_Full) ||
1372 ethtool_link_ksettings_test_link_mode(ks, advertising,
1373 10000baseCR_Full) ||
1374 ethtool_link_ksettings_test_link_mode(ks, advertising,
1375 10000baseSR_Full) ||
1376 ethtool_link_ksettings_test_link_mode(ks, advertising,
1377 10000baseLR_Full))
1378 config.link_speed |= I40E_LINK_SPEED_10GB;
1379 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1380 2500baseT_Full))
1381 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1382 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1383 5000baseT_Full))
1384 config.link_speed |= I40E_LINK_SPEED_5GB;
1385 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1386 20000baseKR2_Full))
1387 config.link_speed |= I40E_LINK_SPEED_20GB;
1388 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1389 25000baseCR_Full) ||
1390 ethtool_link_ksettings_test_link_mode(ks, advertising,
1391 25000baseKR_Full) ||
1392 ethtool_link_ksettings_test_link_mode(ks, advertising,
1393 25000baseSR_Full))
1394 config.link_speed |= I40E_LINK_SPEED_25GB;
1395 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1396 40000baseKR4_Full) ||
1397 ethtool_link_ksettings_test_link_mode(ks, advertising,
1398 40000baseCR4_Full) ||
1399 ethtool_link_ksettings_test_link_mode(ks, advertising,
1400 40000baseSR4_Full) ||
1401 ethtool_link_ksettings_test_link_mode(ks, advertising,
1402 40000baseLR4_Full))
1403 config.link_speed |= I40E_LINK_SPEED_40GB;
1404
1405 /* Autonegotiation must be disabled to change speed */
1406 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) &&
1407 (autoneg == AUTONEG_DISABLE ||
1408 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) {
1409 link_speed = i40e_speed_to_link_speed(speed, ks);
1410 if (link_speed == I40E_LINK_SPEED_UNKNOWN) {
1411 netdev_info(netdev, "Given speed is not supported\n");
1412 err = -EOPNOTSUPP;
1413 goto done;
1414 } else {
1415 config.link_speed = link_speed;
1416 }
1417 } else {
1418 if (safe_ks.base.speed != speed) {
1419 netdev_info(netdev,
1420 "Unable to set speed, disable autoneg\n");
1421 err = -EOPNOTSUPP;
1422 goto done;
1423 }
1424 }
1425
1426 /* If speed didn't get set, set it to what it currently is.
1427 * This is needed because if advertise is 0 (as it is when autoneg
1428 * is disabled) then speed won't get set.
1429 */
1430 if (!config.link_speed)
1431 config.link_speed = abilities.link_speed;
1432 if (autoneg_changed || abilities.link_speed != config.link_speed) {
1433 /* copy over the rest of the abilities */
1434 config.phy_type = abilities.phy_type;
1435 config.phy_type_ext = abilities.phy_type_ext;
1436 config.eee_capability = abilities.eee_capability;
1437 config.eeer = abilities.eeer_val;
1438 config.low_power_ctrl = abilities.d3_lpan;
1439 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1440 I40E_AQ_PHY_FEC_CONFIG_MASK;
1441
1442 /* save the requested speeds */
1443 hw->phy.link_info.requested_speeds = config.link_speed;
1444 /* set link and auto negotiation so changes take effect */
1445 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1446 /* If link is up put link down */
1447 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1448 /* Tell the OS link is going down, the link will go
1449 * back up when fw says it is ready asynchronously
1450 */
1451 i40e_print_link_message(vsi, false);
1452 netif_carrier_off(netdev);
1453 netif_tx_stop_all_queues(netdev);
1454 }
1455
1456 /* make the aq call */
1457 status = i40e_aq_set_phy_config(hw, &config, NULL);
1458 if (status) {
1459 netdev_info(netdev,
1460 "Set phy config failed, err %pe aq_err %s\n",
1461 ERR_PTR(status),
1462 i40e_aq_str(hw, hw->aq.asq_last_status));
1463 err = -EAGAIN;
1464 goto done;
1465 }
1466
1467 status = i40e_update_link_info(hw);
1468 if (status)
1469 netdev_dbg(netdev,
1470 "Updating link info failed with err %pe aq_err %s\n",
1471 ERR_PTR(status),
1472 i40e_aq_str(hw, hw->aq.asq_last_status));
1473
1474 } else {
1475 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1476 }
1477
1478done:
1479 clear_bit(__I40E_CONFIG_BUSY, pf->state);
1480
1481 return err;
1482}
1483
1484static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1485{
1486 struct i40e_netdev_priv *np = netdev_priv(netdev);
1487 struct i40e_aq_get_phy_abilities_resp abilities;
1488 struct i40e_pf *pf = np->vsi->back;
1489 struct i40e_hw *hw = &pf->hw;
1490 int status = 0;
1491 int err = 0;
1492
1493 /* Get the current phy config */
1494 memset(&abilities, 0, sizeof(abilities));
1495 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1496 NULL);
1497 if (status) {
1498 err = -EAGAIN;
1499 goto done;
1500 }
1501
1502 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1503 struct i40e_aq_set_phy_config config;
1504
1505 memset(&config, 0, sizeof(config));
1506 config.phy_type = abilities.phy_type;
1507 config.abilities = abilities.abilities |
1508 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1509 config.phy_type_ext = abilities.phy_type_ext;
1510 config.link_speed = abilities.link_speed;
1511 config.eee_capability = abilities.eee_capability;
1512 config.eeer = abilities.eeer_val;
1513 config.low_power_ctrl = abilities.d3_lpan;
1514 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1515 status = i40e_aq_set_phy_config(hw, &config, NULL);
1516 if (status) {
1517 netdev_info(netdev,
1518 "Set phy config failed, err %pe aq_err %s\n",
1519 ERR_PTR(status),
1520 i40e_aq_str(hw, hw->aq.asq_last_status));
1521 err = -EAGAIN;
1522 goto done;
1523 }
1524 i40e_set_fec_in_flags(fec_cfg, pf->flags);
1525 status = i40e_update_link_info(hw);
1526 if (status)
1527 /* debug level message only due to relation to the link
1528 * itself rather than to the FEC settings
1529 * (e.g. no physical connection etc.)
1530 */
1531 netdev_dbg(netdev,
1532 "Updating link info failed with err %pe aq_err %s\n",
1533 ERR_PTR(status),
1534 i40e_aq_str(hw, hw->aq.asq_last_status));
1535 }
1536
1537done:
1538 return err;
1539}
1540
1541static int i40e_get_fec_param(struct net_device *netdev,
1542 struct ethtool_fecparam *fecparam)
1543{
1544 struct i40e_netdev_priv *np = netdev_priv(netdev);
1545 struct i40e_aq_get_phy_abilities_resp abilities;
1546 struct i40e_pf *pf = np->vsi->back;
1547 struct i40e_hw *hw = &pf->hw;
1548 int status = 0;
1549 int err = 0;
1550 u8 fec_cfg;
1551
1552 /* Get the current phy config */
1553 memset(&abilities, 0, sizeof(abilities));
1554 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1555 NULL);
1556 if (status) {
1557 err = -EAGAIN;
1558 goto done;
1559 }
1560
1561 fecparam->fec = 0;
1562 fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1563 if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1564 fecparam->fec |= ETHTOOL_FEC_AUTO;
1565 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1566 I40E_AQ_SET_FEC_ABILITY_RS))
1567 fecparam->fec |= ETHTOOL_FEC_RS;
1568 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1569 I40E_AQ_SET_FEC_ABILITY_KR))
1570 fecparam->fec |= ETHTOOL_FEC_BASER;
1571 if (fec_cfg == 0)
1572 fecparam->fec |= ETHTOOL_FEC_OFF;
1573
1574 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1575 fecparam->active_fec = ETHTOOL_FEC_BASER;
1576 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1577 fecparam->active_fec = ETHTOOL_FEC_RS;
1578 else
1579 fecparam->active_fec = ETHTOOL_FEC_OFF;
1580done:
1581 return err;
1582}
1583
1584static int i40e_set_fec_param(struct net_device *netdev,
1585 struct ethtool_fecparam *fecparam)
1586{
1587 struct i40e_netdev_priv *np = netdev_priv(netdev);
1588 struct i40e_pf *pf = np->vsi->back;
1589 struct i40e_hw *hw = &pf->hw;
1590 u8 fec_cfg = 0;
1591
1592 if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1593 hw->device_id != I40E_DEV_ID_25G_B &&
1594 hw->device_id != I40E_DEV_ID_KX_X722)
1595 return -EPERM;
1596
1597 if (hw->mac.type == I40E_MAC_X722 &&
1598 !test_bit(I40E_HW_CAP_X722_FEC_REQUEST, hw->caps)) {
1599 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1600 return -EOPNOTSUPP;
1601 }
1602
1603 switch (fecparam->fec) {
1604 case ETHTOOL_FEC_AUTO:
1605 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1606 break;
1607 case ETHTOOL_FEC_RS:
1608 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1609 I40E_AQ_SET_FEC_ABILITY_RS);
1610 break;
1611 case ETHTOOL_FEC_BASER:
1612 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1613 I40E_AQ_SET_FEC_ABILITY_KR);
1614 break;
1615 case ETHTOOL_FEC_OFF:
1616 case ETHTOOL_FEC_NONE:
1617 fec_cfg = 0;
1618 break;
1619 default:
1620 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1621 fecparam->fec);
1622 return -EINVAL;
1623 }
1624
1625 return i40e_set_fec_cfg(netdev, fec_cfg);
1626}
1627
1628static int i40e_nway_reset(struct net_device *netdev)
1629{
1630 /* restart autonegotiation */
1631 struct i40e_netdev_priv *np = netdev_priv(netdev);
1632 struct i40e_pf *pf = np->vsi->back;
1633 struct i40e_hw *hw = &pf->hw;
1634 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1635 int ret = 0;
1636
1637 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1638 if (ret) {
1639 netdev_info(netdev, "link restart failed, err %pe aq_err %s\n",
1640 ERR_PTR(ret),
1641 i40e_aq_str(hw, hw->aq.asq_last_status));
1642 return -EIO;
1643 }
1644
1645 return 0;
1646}
1647
1648/**
1649 * i40e_get_pauseparam - Get Flow Control status
1650 * @netdev: netdevice structure
1651 * @pause: buffer to return pause parameters
1652 *
1653 * Return tx/rx-pause status
1654 **/
1655static void i40e_get_pauseparam(struct net_device *netdev,
1656 struct ethtool_pauseparam *pause)
1657{
1658 struct i40e_netdev_priv *np = netdev_priv(netdev);
1659 struct i40e_pf *pf = np->vsi->back;
1660 struct i40e_hw *hw = &pf->hw;
1661 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1662 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1663
1664 pause->autoneg =
1665 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1666 AUTONEG_ENABLE : AUTONEG_DISABLE);
1667
1668 /* PFC enabled so report LFC as off */
1669 if (dcbx_cfg->pfc.pfcenable) {
1670 pause->rx_pause = 0;
1671 pause->tx_pause = 0;
1672 return;
1673 }
1674
1675 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1676 pause->rx_pause = 1;
1677 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1678 pause->tx_pause = 1;
1679 } else if (hw->fc.current_mode == I40E_FC_FULL) {
1680 pause->rx_pause = 1;
1681 pause->tx_pause = 1;
1682 }
1683}
1684
1685/**
1686 * i40e_set_pauseparam - Set Flow Control parameter
1687 * @netdev: network interface device structure
1688 * @pause: return tx/rx flow control status
1689 **/
1690static int i40e_set_pauseparam(struct net_device *netdev,
1691 struct ethtool_pauseparam *pause)
1692{
1693 struct i40e_netdev_priv *np = netdev_priv(netdev);
1694 struct i40e_pf *pf = np->vsi->back;
1695 struct i40e_vsi *vsi = np->vsi;
1696 struct i40e_hw *hw = &pf->hw;
1697 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1698 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1699 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1700 u8 aq_failures;
1701 int err = 0;
1702 int status;
1703 u32 is_an;
1704
1705 /* Changing the port's flow control is not supported if this isn't the
1706 * port's controlling PF
1707 */
1708 if (hw->partition_id != 1) {
1709 i40e_partition_setting_complaint(pf);
1710 return -EOPNOTSUPP;
1711 }
1712
1713 if (vsi != pf->vsi[pf->lan_vsi])
1714 return -EOPNOTSUPP;
1715
1716 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1717 if (pause->autoneg != is_an) {
1718 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1719 return -EOPNOTSUPP;
1720 }
1721
1722 /* If we have link and don't have autoneg */
1723 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1724 /* Send message that it might not necessarily work*/
1725 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1726 }
1727
1728 if (dcbx_cfg->pfc.pfcenable) {
1729 netdev_info(netdev,
1730 "Priority flow control enabled. Cannot set link flow control.\n");
1731 return -EOPNOTSUPP;
1732 }
1733
1734 if (pause->rx_pause && pause->tx_pause)
1735 hw->fc.requested_mode = I40E_FC_FULL;
1736 else if (pause->rx_pause && !pause->tx_pause)
1737 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1738 else if (!pause->rx_pause && pause->tx_pause)
1739 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1740 else if (!pause->rx_pause && !pause->tx_pause)
1741 hw->fc.requested_mode = I40E_FC_NONE;
1742 else
1743 return -EINVAL;
1744
1745 /* Tell the OS link is going down, the link will go back up when fw
1746 * says it is ready asynchronously
1747 */
1748 i40e_print_link_message(vsi, false);
1749 netif_carrier_off(netdev);
1750 netif_tx_stop_all_queues(netdev);
1751
1752 /* Set the fc mode and only restart an if link is up*/
1753 status = i40e_set_fc(hw, &aq_failures, link_up);
1754
1755 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1756 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n",
1757 ERR_PTR(status),
1758 i40e_aq_str(hw, hw->aq.asq_last_status));
1759 err = -EAGAIN;
1760 }
1761 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1762 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n",
1763 ERR_PTR(status),
1764 i40e_aq_str(hw, hw->aq.asq_last_status));
1765 err = -EAGAIN;
1766 }
1767 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1768 netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n",
1769 ERR_PTR(status),
1770 i40e_aq_str(hw, hw->aq.asq_last_status));
1771 err = -EAGAIN;
1772 }
1773
1774 if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1775 /* Give it a little more time to try to come back */
1776 msleep(75);
1777 if (!test_bit(__I40E_DOWN, pf->state))
1778 return i40e_nway_reset(netdev);
1779 }
1780
1781 return err;
1782}
1783
1784static u32 i40e_get_msglevel(struct net_device *netdev)
1785{
1786 struct i40e_netdev_priv *np = netdev_priv(netdev);
1787 struct i40e_pf *pf = np->vsi->back;
1788 u32 debug_mask = pf->hw.debug_mask;
1789
1790 if (debug_mask)
1791 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1792
1793 return pf->msg_enable;
1794}
1795
1796static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1797{
1798 struct i40e_netdev_priv *np = netdev_priv(netdev);
1799 struct i40e_pf *pf = np->vsi->back;
1800
1801 if (I40E_DEBUG_USER & data)
1802 pf->hw.debug_mask = data;
1803 else
1804 pf->msg_enable = data;
1805}
1806
1807static int i40e_get_regs_len(struct net_device *netdev)
1808{
1809 int reg_count = 0;
1810 int i;
1811
1812 for (i = 0; i40e_reg_list[i].offset != 0; i++)
1813 reg_count += i40e_reg_list[i].elements;
1814
1815 return reg_count * sizeof(u32);
1816}
1817
1818static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1819 void *p)
1820{
1821 struct i40e_netdev_priv *np = netdev_priv(netdev);
1822 struct i40e_pf *pf = np->vsi->back;
1823 struct i40e_hw *hw = &pf->hw;
1824 u32 *reg_buf = p;
1825 unsigned int i, j, ri;
1826 u32 reg;
1827
1828 /* Tell ethtool which driver-version-specific regs output we have.
1829 *
1830 * At some point, if we have ethtool doing special formatting of
1831 * this data, it will rely on this version number to know how to
1832 * interpret things. Hence, this needs to be updated if/when the
1833 * diags register table is changed.
1834 */
1835 regs->version = 1;
1836
1837 /* loop through the diags reg table for what to print */
1838 ri = 0;
1839 for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1840 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1841 reg = i40e_reg_list[i].offset
1842 + (j * i40e_reg_list[i].stride);
1843 reg_buf[ri++] = rd32(hw, reg);
1844 }
1845 }
1846
1847}
1848
1849static int i40e_get_eeprom(struct net_device *netdev,
1850 struct ethtool_eeprom *eeprom, u8 *bytes)
1851{
1852 struct i40e_netdev_priv *np = netdev_priv(netdev);
1853 struct i40e_hw *hw = &np->vsi->back->hw;
1854 struct i40e_pf *pf = np->vsi->back;
1855 int ret_val = 0, len, offset;
1856 u8 *eeprom_buff;
1857 u16 i, sectors;
1858 bool last;
1859 u32 magic;
1860
1861#define I40E_NVM_SECTOR_SIZE 4096
1862 if (eeprom->len == 0)
1863 return -EINVAL;
1864
1865 /* check for NVMUpdate access method */
1866 magic = hw->vendor_id | (hw->device_id << 16);
1867 if (eeprom->magic && eeprom->magic != magic) {
1868 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1869 int errno = 0;
1870
1871 /* make sure it is the right magic for NVMUpdate */
1872 if ((eeprom->magic >> 16) != hw->device_id)
1873 errno = -EINVAL;
1874 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1875 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1876 errno = -EBUSY;
1877 else
1878 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1879
1880 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1881 dev_info(&pf->pdev->dev,
1882 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1883 ret_val, hw->aq.asq_last_status, errno,
1884 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1885 cmd->offset, cmd->data_size);
1886
1887 return errno;
1888 }
1889
1890 /* normal ethtool get_eeprom support */
1891 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1892
1893 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1894 if (!eeprom_buff)
1895 return -ENOMEM;
1896
1897 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1898 if (ret_val) {
1899 dev_info(&pf->pdev->dev,
1900 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1901 ret_val, hw->aq.asq_last_status);
1902 goto free_buff;
1903 }
1904
1905 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1906 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1907 len = I40E_NVM_SECTOR_SIZE;
1908 last = false;
1909 for (i = 0; i < sectors; i++) {
1910 if (i == (sectors - 1)) {
1911 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1912 last = true;
1913 }
1914 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i);
1915 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1916 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1917 last, NULL);
1918 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1919 dev_info(&pf->pdev->dev,
1920 "read NVM failed, invalid offset 0x%x\n",
1921 offset);
1922 break;
1923 } else if (ret_val &&
1924 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1925 dev_info(&pf->pdev->dev,
1926 "read NVM failed, access, offset 0x%x\n",
1927 offset);
1928 break;
1929 } else if (ret_val) {
1930 dev_info(&pf->pdev->dev,
1931 "read NVM failed offset %d err=%d status=0x%x\n",
1932 offset, ret_val, hw->aq.asq_last_status);
1933 break;
1934 }
1935 }
1936
1937 i40e_release_nvm(hw);
1938 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1939free_buff:
1940 kfree(eeprom_buff);
1941 return ret_val;
1942}
1943
1944static int i40e_get_eeprom_len(struct net_device *netdev)
1945{
1946 struct i40e_netdev_priv *np = netdev_priv(netdev);
1947 struct i40e_hw *hw = &np->vsi->back->hw;
1948 u32 val;
1949
1950#define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1951 if (hw->mac.type == I40E_MAC_X722) {
1952 val = X722_EEPROM_SCOPE_LIMIT + 1;
1953 return val;
1954 }
1955 val = FIELD_GET(I40E_GLPCI_LBARCTRL_FL_SIZE_MASK,
1956 rd32(hw, I40E_GLPCI_LBARCTRL));
1957 /* register returns value in power of 2, 64Kbyte chunks. */
1958 val = (64 * 1024) * BIT(val);
1959 return val;
1960}
1961
1962static int i40e_set_eeprom(struct net_device *netdev,
1963 struct ethtool_eeprom *eeprom, u8 *bytes)
1964{
1965 struct i40e_netdev_priv *np = netdev_priv(netdev);
1966 struct i40e_hw *hw = &np->vsi->back->hw;
1967 struct i40e_pf *pf = np->vsi->back;
1968 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1969 int ret_val = 0;
1970 int errno = 0;
1971 u32 magic;
1972
1973 /* normal ethtool set_eeprom is not supported */
1974 magic = hw->vendor_id | (hw->device_id << 16);
1975 if (eeprom->magic == magic)
1976 errno = -EOPNOTSUPP;
1977 /* check for NVMUpdate access method */
1978 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1979 errno = -EINVAL;
1980 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1981 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1982 errno = -EBUSY;
1983 else
1984 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1985
1986 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1987 dev_info(&pf->pdev->dev,
1988 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1989 ret_val, hw->aq.asq_last_status, errno,
1990 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1991 cmd->offset, cmd->data_size);
1992
1993 return errno;
1994}
1995
1996static void i40e_get_drvinfo(struct net_device *netdev,
1997 struct ethtool_drvinfo *drvinfo)
1998{
1999 struct i40e_netdev_priv *np = netdev_priv(netdev);
2000 struct i40e_vsi *vsi = np->vsi;
2001 struct i40e_pf *pf = vsi->back;
2002
2003 strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
2004 i40e_nvm_version_str(&pf->hw, drvinfo->fw_version,
2005 sizeof(drvinfo->fw_version));
2006 strscpy(drvinfo->bus_info, pci_name(pf->pdev),
2007 sizeof(drvinfo->bus_info));
2008 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
2009 if (pf->hw.pf_id == 0)
2010 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
2011}
2012
2013static u32 i40e_get_max_num_descriptors(struct i40e_pf *pf)
2014{
2015 struct i40e_hw *hw = &pf->hw;
2016
2017 switch (hw->mac.type) {
2018 case I40E_MAC_XL710:
2019 return I40E_MAX_NUM_DESCRIPTORS_XL710;
2020 default:
2021 return I40E_MAX_NUM_DESCRIPTORS;
2022 }
2023}
2024
2025static void i40e_get_ringparam(struct net_device *netdev,
2026 struct ethtool_ringparam *ring,
2027 struct kernel_ethtool_ringparam *kernel_ring,
2028 struct netlink_ext_ack *extack)
2029{
2030 struct i40e_netdev_priv *np = netdev_priv(netdev);
2031 struct i40e_pf *pf = np->vsi->back;
2032 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
2033
2034 ring->rx_max_pending = i40e_get_max_num_descriptors(pf);
2035 ring->tx_max_pending = i40e_get_max_num_descriptors(pf);
2036 ring->rx_mini_max_pending = 0;
2037 ring->rx_jumbo_max_pending = 0;
2038 ring->rx_pending = vsi->rx_rings[0]->count;
2039 ring->tx_pending = vsi->tx_rings[0]->count;
2040 ring->rx_mini_pending = 0;
2041 ring->rx_jumbo_pending = 0;
2042}
2043
2044static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
2045{
2046 if (i40e_enabled_xdp_vsi(vsi)) {
2047 return index < vsi->num_queue_pairs ||
2048 (index >= vsi->alloc_queue_pairs &&
2049 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
2050 }
2051
2052 return index < vsi->num_queue_pairs;
2053}
2054
2055static int i40e_set_ringparam(struct net_device *netdev,
2056 struct ethtool_ringparam *ring,
2057 struct kernel_ethtool_ringparam *kernel_ring,
2058 struct netlink_ext_ack *extack)
2059{
2060 u32 new_rx_count, new_tx_count, max_num_descriptors;
2061 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
2062 struct i40e_netdev_priv *np = netdev_priv(netdev);
2063 struct i40e_hw *hw = &np->vsi->back->hw;
2064 struct i40e_vsi *vsi = np->vsi;
2065 struct i40e_pf *pf = vsi->back;
2066 u16 tx_alloc_queue_pairs;
2067 int timeout = 50;
2068 int i, err = 0;
2069
2070 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
2071 return -EINVAL;
2072
2073 max_num_descriptors = i40e_get_max_num_descriptors(pf);
2074 if (ring->tx_pending > max_num_descriptors ||
2075 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
2076 ring->rx_pending > max_num_descriptors ||
2077 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
2078 netdev_info(netdev,
2079 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
2080 ring->tx_pending, ring->rx_pending,
2081 I40E_MIN_NUM_DESCRIPTORS, max_num_descriptors);
2082 return -EINVAL;
2083 }
2084
2085 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2086 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2087
2088 /* if nothing to do return success */
2089 if ((new_tx_count == vsi->tx_rings[0]->count) &&
2090 (new_rx_count == vsi->rx_rings[0]->count))
2091 return 0;
2092
2093 /* If there is a AF_XDP page pool attached to any of Rx rings,
2094 * disallow changing the number of descriptors -- regardless
2095 * if the netdev is running or not.
2096 */
2097 if (i40e_xsk_any_rx_ring_enabled(vsi))
2098 return -EBUSY;
2099
2100 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
2101 timeout--;
2102 if (!timeout)
2103 return -EBUSY;
2104 usleep_range(1000, 2000);
2105 }
2106
2107 if (!netif_running(vsi->netdev)) {
2108 /* simple case - set for the next time the netdev is started */
2109 for (i = 0; i < vsi->num_queue_pairs; i++) {
2110 vsi->tx_rings[i]->count = new_tx_count;
2111 vsi->rx_rings[i]->count = new_rx_count;
2112 if (i40e_enabled_xdp_vsi(vsi))
2113 vsi->xdp_rings[i]->count = new_tx_count;
2114 }
2115 vsi->num_tx_desc = new_tx_count;
2116 vsi->num_rx_desc = new_rx_count;
2117 goto done;
2118 }
2119
2120 /* We can't just free everything and then setup again,
2121 * because the ISRs in MSI-X mode get passed pointers
2122 * to the Tx and Rx ring structs.
2123 */
2124
2125 /* alloc updated Tx and XDP Tx resources */
2126 tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2127 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2128 if (new_tx_count != vsi->tx_rings[0]->count) {
2129 netdev_info(netdev,
2130 "Changing Tx descriptor count from %d to %d.\n",
2131 vsi->tx_rings[0]->count, new_tx_count);
2132 tx_rings = kcalloc(tx_alloc_queue_pairs,
2133 sizeof(struct i40e_ring), GFP_KERNEL);
2134 if (!tx_rings) {
2135 err = -ENOMEM;
2136 goto done;
2137 }
2138
2139 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2140 if (!i40e_active_tx_ring_index(vsi, i))
2141 continue;
2142
2143 tx_rings[i] = *vsi->tx_rings[i];
2144 tx_rings[i].count = new_tx_count;
2145 /* the desc and bi pointers will be reallocated in the
2146 * setup call
2147 */
2148 tx_rings[i].desc = NULL;
2149 tx_rings[i].rx_bi = NULL;
2150 err = i40e_setup_tx_descriptors(&tx_rings[i]);
2151 if (err) {
2152 while (i) {
2153 i--;
2154 if (!i40e_active_tx_ring_index(vsi, i))
2155 continue;
2156 i40e_free_tx_resources(&tx_rings[i]);
2157 }
2158 kfree(tx_rings);
2159 tx_rings = NULL;
2160
2161 goto done;
2162 }
2163 }
2164 }
2165
2166 /* alloc updated Rx resources */
2167 if (new_rx_count != vsi->rx_rings[0]->count) {
2168 netdev_info(netdev,
2169 "Changing Rx descriptor count from %d to %d\n",
2170 vsi->rx_rings[0]->count, new_rx_count);
2171 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2172 sizeof(struct i40e_ring), GFP_KERNEL);
2173 if (!rx_rings) {
2174 err = -ENOMEM;
2175 goto free_tx;
2176 }
2177
2178 for (i = 0; i < vsi->num_queue_pairs; i++) {
2179 u16 unused;
2180
2181 /* clone ring and setup updated count */
2182 rx_rings[i] = *vsi->rx_rings[i];
2183 rx_rings[i].count = new_rx_count;
2184 /* the desc and bi pointers will be reallocated in the
2185 * setup call
2186 */
2187 rx_rings[i].desc = NULL;
2188 rx_rings[i].rx_bi = NULL;
2189 /* Clear cloned XDP RX-queue info before setup call */
2190 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2191 /* this is to allow wr32 to have something to write to
2192 * during early allocation of Rx buffers
2193 */
2194 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2195 err = i40e_setup_rx_descriptors(&rx_rings[i]);
2196 if (err)
2197 goto rx_unwind;
2198
2199 /* now allocate the Rx buffers to make sure the OS
2200 * has enough memory, any failure here means abort
2201 */
2202 unused = I40E_DESC_UNUSED(&rx_rings[i]);
2203 err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2204rx_unwind:
2205 if (err) {
2206 do {
2207 i40e_free_rx_resources(&rx_rings[i]);
2208 } while (i--);
2209 kfree(rx_rings);
2210 rx_rings = NULL;
2211
2212 goto free_tx;
2213 }
2214 }
2215 }
2216
2217 /* Bring interface down, copy in the new ring info,
2218 * then restore the interface
2219 */
2220 i40e_down(vsi);
2221
2222 if (tx_rings) {
2223 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2224 if (i40e_active_tx_ring_index(vsi, i)) {
2225 i40e_free_tx_resources(vsi->tx_rings[i]);
2226 *vsi->tx_rings[i] = tx_rings[i];
2227 }
2228 }
2229 kfree(tx_rings);
2230 tx_rings = NULL;
2231 }
2232
2233 if (rx_rings) {
2234 for (i = 0; i < vsi->num_queue_pairs; i++) {
2235 i40e_free_rx_resources(vsi->rx_rings[i]);
2236 /* get the real tail offset */
2237 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2238 /* this is to fake out the allocation routine
2239 * into thinking it has to realloc everything
2240 * but the recycling logic will let us re-use
2241 * the buffers allocated above
2242 */
2243 rx_rings[i].next_to_use = 0;
2244 rx_rings[i].next_to_clean = 0;
2245 rx_rings[i].next_to_alloc = 0;
2246 /* do a struct copy */
2247 *vsi->rx_rings[i] = rx_rings[i];
2248 }
2249 kfree(rx_rings);
2250 rx_rings = NULL;
2251 }
2252
2253 vsi->num_tx_desc = new_tx_count;
2254 vsi->num_rx_desc = new_rx_count;
2255 i40e_up(vsi);
2256
2257free_tx:
2258 /* error cleanup if the Rx allocations failed after getting Tx */
2259 if (tx_rings) {
2260 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2261 if (i40e_active_tx_ring_index(vsi, i))
2262 i40e_free_tx_resources(vsi->tx_rings[i]);
2263 }
2264 kfree(tx_rings);
2265 tx_rings = NULL;
2266 }
2267
2268done:
2269 clear_bit(__I40E_CONFIG_BUSY, pf->state);
2270
2271 return err;
2272}
2273
2274/**
2275 * i40e_get_stats_count - return the stats count for a device
2276 * @netdev: the netdev to return the count for
2277 *
2278 * Returns the total number of statistics for this netdev. Note that even
2279 * though this is a function, it is required that the count for a specific
2280 * netdev must never change. Basing the count on static values such as the
2281 * maximum number of queues or the device type is ok. However, the API for
2282 * obtaining stats is *not* safe against changes based on non-static
2283 * values such as the *current* number of queues, or runtime flags.
2284 *
2285 * If a statistic is not always enabled, return it as part of the count
2286 * anyways, always return its string, and report its value as zero.
2287 **/
2288static int i40e_get_stats_count(struct net_device *netdev)
2289{
2290 struct i40e_netdev_priv *np = netdev_priv(netdev);
2291 struct i40e_vsi *vsi = np->vsi;
2292 struct i40e_pf *pf = vsi->back;
2293 int stats_len;
2294
2295 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2296 stats_len = I40E_PF_STATS_LEN;
2297 else
2298 stats_len = I40E_VSI_STATS_LEN;
2299
2300 /* The number of stats reported for a given net_device must remain
2301 * constant throughout the life of that device.
2302 *
2303 * This is because the API for obtaining the size, strings, and stats
2304 * is spread out over three separate ethtool ioctls. There is no safe
2305 * way to lock the number of stats across these calls, so we must
2306 * assume that they will never change.
2307 *
2308 * Due to this, we report the maximum number of queues, even if not
2309 * every queue is currently configured. Since we always allocate
2310 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2311 * works because the num_tx_queues is set at device creation and never
2312 * changes.
2313 */
2314 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2315
2316 return stats_len;
2317}
2318
2319static int i40e_get_sset_count(struct net_device *netdev, int sset)
2320{
2321 struct i40e_netdev_priv *np = netdev_priv(netdev);
2322 struct i40e_vsi *vsi = np->vsi;
2323 struct i40e_pf *pf = vsi->back;
2324
2325 switch (sset) {
2326 case ETH_SS_TEST:
2327 return I40E_TEST_LEN;
2328 case ETH_SS_STATS:
2329 return i40e_get_stats_count(netdev);
2330 case ETH_SS_PRIV_FLAGS:
2331 return I40E_PRIV_FLAGS_STR_LEN +
2332 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2333 default:
2334 return -EOPNOTSUPP;
2335 }
2336}
2337
2338/**
2339 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure
2340 * @tc: the TC statistics in VEB structure (veb->tc_stats)
2341 * @i: the index of traffic class in (veb->tc_stats) structure to copy
2342 *
2343 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to
2344 * one dimensional structure i40e_cp_veb_tc_stats.
2345 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC
2346 * statistics for the given TC.
2347 **/
2348static struct i40e_cp_veb_tc_stats
2349i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i)
2350{
2351 struct i40e_cp_veb_tc_stats veb_tc = {
2352 .tc_rx_packets = tc->tc_rx_packets[i],
2353 .tc_rx_bytes = tc->tc_rx_bytes[i],
2354 .tc_tx_packets = tc->tc_tx_packets[i],
2355 .tc_tx_bytes = tc->tc_tx_bytes[i],
2356 };
2357
2358 return veb_tc;
2359}
2360
2361/**
2362 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2363 * @pf: the PF device structure
2364 * @i: the priority value to copy
2365 *
2366 * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2367 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2368 * of the PFC stats for the given priority.
2369 **/
2370static inline struct i40e_pfc_stats
2371i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2372{
2373#define I40E_GET_PFC_STAT(stat, priority) \
2374 .stat = pf->stats.stat[priority]
2375
2376 struct i40e_pfc_stats pfc = {
2377 I40E_GET_PFC_STAT(priority_xon_rx, i),
2378 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2379 I40E_GET_PFC_STAT(priority_xon_tx, i),
2380 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2381 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2382 };
2383 return pfc;
2384}
2385
2386/**
2387 * i40e_get_ethtool_stats - copy stat values into supplied buffer
2388 * @netdev: the netdev to collect stats for
2389 * @stats: ethtool stats command structure
2390 * @data: ethtool supplied buffer
2391 *
2392 * Copy the stats values for this netdev into the buffer. Expects data to be
2393 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2394 * statistics must be copied in a static order, and the count must not change
2395 * for a given netdev. See i40e_get_stats_count for more details.
2396 *
2397 * If a statistic is not currently valid (such as a disabled queue), this
2398 * function reports its value as zero.
2399 **/
2400static void i40e_get_ethtool_stats(struct net_device *netdev,
2401 struct ethtool_stats *stats, u64 *data)
2402{
2403 struct i40e_netdev_priv *np = netdev_priv(netdev);
2404 struct i40e_vsi *vsi = np->vsi;
2405 struct i40e_pf *pf = vsi->back;
2406 struct i40e_veb *veb = NULL;
2407 unsigned int i;
2408 bool veb_stats;
2409 u64 *p = data;
2410
2411 i40e_update_stats(vsi);
2412
2413 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2414 i40e_gstrings_net_stats);
2415
2416 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2417
2418 rcu_read_lock();
2419 for (i = 0; i < netdev->num_tx_queues; i++) {
2420 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2421 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2422 }
2423 rcu_read_unlock();
2424
2425 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2426 goto check_data_pointer;
2427
2428 veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2429 (pf->lan_veb < I40E_MAX_VEB) &&
2430 test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags));
2431
2432 if (veb_stats) {
2433 veb = pf->veb[pf->lan_veb];
2434 i40e_update_veb_stats(veb);
2435 }
2436
2437 /* If veb stats aren't enabled, pass NULL instead of the veb so that
2438 * we initialize stats to zero and update the data pointer
2439 * intelligently
2440 */
2441 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2442 i40e_gstrings_veb_stats);
2443
2444 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2445 if (veb_stats) {
2446 struct i40e_cp_veb_tc_stats veb_tc =
2447 i40e_get_veb_tc_stats(&veb->tc_stats, i);
2448
2449 i40e_add_ethtool_stats(&data, &veb_tc,
2450 i40e_gstrings_veb_tc_stats);
2451 } else {
2452 i40e_add_ethtool_stats(&data, NULL,
2453 i40e_gstrings_veb_tc_stats);
2454 }
2455
2456 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2457
2458 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2459 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2460
2461 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2462 }
2463
2464check_data_pointer:
2465 WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2466 "ethtool stats count mismatch!");
2467}
2468
2469/**
2470 * i40e_get_stat_strings - copy stat strings into supplied buffer
2471 * @netdev: the netdev to collect strings for
2472 * @data: supplied buffer to copy strings into
2473 *
2474 * Copy the strings related to stats for this netdev. Expects data to be
2475 * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2476 * strings must be copied in a static order and the total count must not
2477 * change for a given netdev. See i40e_get_stats_count for more details.
2478 **/
2479static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2480{
2481 struct i40e_netdev_priv *np = netdev_priv(netdev);
2482 struct i40e_vsi *vsi = np->vsi;
2483 struct i40e_pf *pf = vsi->back;
2484 unsigned int i;
2485 u8 *p = data;
2486
2487 i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2488
2489 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2490
2491 for (i = 0; i < netdev->num_tx_queues; i++) {
2492 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2493 "tx", i);
2494 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2495 "rx", i);
2496 }
2497
2498 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2499 goto check_data_pointer;
2500
2501 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2502
2503 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2504 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2505
2506 i40e_add_stat_strings(&data, i40e_gstrings_stats);
2507
2508 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2509 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2510
2511check_data_pointer:
2512 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2513 "stat strings count mismatch!");
2514}
2515
2516static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2517{
2518 struct i40e_netdev_priv *np = netdev_priv(netdev);
2519 struct i40e_vsi *vsi = np->vsi;
2520 struct i40e_pf *pf = vsi->back;
2521 unsigned int i;
2522 u8 *p = data;
2523
2524 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++)
2525 ethtool_puts(&p, i40e_gstrings_priv_flags[i].flag_string);
2526 if (pf->hw.pf_id != 0)
2527 return;
2528 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++)
2529 ethtool_puts(&p, i40e_gl_gstrings_priv_flags[i].flag_string);
2530}
2531
2532static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2533 u8 *data)
2534{
2535 switch (stringset) {
2536 case ETH_SS_TEST:
2537 memcpy(data, i40e_gstrings_test,
2538 I40E_TEST_LEN * ETH_GSTRING_LEN);
2539 break;
2540 case ETH_SS_STATS:
2541 i40e_get_stat_strings(netdev, data);
2542 break;
2543 case ETH_SS_PRIV_FLAGS:
2544 i40e_get_priv_flag_strings(netdev, data);
2545 break;
2546 default:
2547 break;
2548 }
2549}
2550
2551static int i40e_get_ts_info(struct net_device *dev,
2552 struct ethtool_ts_info *info)
2553{
2554 struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2555
2556 /* only report HW timestamping if PTP is enabled */
2557 if (!test_bit(I40E_FLAG_PTP_ENA, pf->flags))
2558 return ethtool_op_get_ts_info(dev, info);
2559
2560 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2561 SOF_TIMESTAMPING_RX_SOFTWARE |
2562 SOF_TIMESTAMPING_SOFTWARE |
2563 SOF_TIMESTAMPING_TX_HARDWARE |
2564 SOF_TIMESTAMPING_RX_HARDWARE |
2565 SOF_TIMESTAMPING_RAW_HARDWARE;
2566
2567 if (pf->ptp_clock)
2568 info->phc_index = ptp_clock_index(pf->ptp_clock);
2569 else
2570 info->phc_index = -1;
2571
2572 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2573
2574 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2575 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2576 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2577 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2578
2579 if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps))
2580 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2581 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2582 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2583 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2584 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2585 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2586 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2587 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2588
2589 return 0;
2590}
2591
2592static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2593{
2594 struct i40e_netdev_priv *np = netdev_priv(netdev);
2595 struct i40e_pf *pf = np->vsi->back;
2596 bool link_up = false;
2597 int status;
2598
2599 netif_info(pf, hw, netdev, "link test\n");
2600 status = i40e_get_link_status(&pf->hw, &link_up);
2601 if (status) {
2602 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2603 *data = 1;
2604 return *data;
2605 }
2606
2607 if (link_up)
2608 *data = 0;
2609 else
2610 *data = 1;
2611
2612 return *data;
2613}
2614
2615static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2616{
2617 struct i40e_netdev_priv *np = netdev_priv(netdev);
2618 struct i40e_pf *pf = np->vsi->back;
2619
2620 netif_info(pf, hw, netdev, "register test\n");
2621 *data = i40e_diag_reg_test(&pf->hw);
2622
2623 return *data;
2624}
2625
2626static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2627{
2628 struct i40e_netdev_priv *np = netdev_priv(netdev);
2629 struct i40e_pf *pf = np->vsi->back;
2630
2631 netif_info(pf, hw, netdev, "eeprom test\n");
2632 *data = i40e_diag_eeprom_test(&pf->hw);
2633
2634 /* forcebly clear the NVM Update state machine */
2635 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2636
2637 return *data;
2638}
2639
2640static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2641{
2642 struct i40e_netdev_priv *np = netdev_priv(netdev);
2643 struct i40e_pf *pf = np->vsi->back;
2644 u16 swc_old = pf->sw_int_count;
2645
2646 netif_info(pf, hw, netdev, "interrupt test\n");
2647 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2648 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2649 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2650 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2651 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2652 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2653 usleep_range(1000, 2000);
2654 *data = (swc_old == pf->sw_int_count);
2655
2656 return *data;
2657}
2658
2659static inline bool i40e_active_vfs(struct i40e_pf *pf)
2660{
2661 struct i40e_vf *vfs = pf->vf;
2662 int i;
2663
2664 for (i = 0; i < pf->num_alloc_vfs; i++)
2665 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2666 return true;
2667 return false;
2668}
2669
2670static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2671{
2672 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2673}
2674
2675static void i40e_diag_test(struct net_device *netdev,
2676 struct ethtool_test *eth_test, u64 *data)
2677{
2678 struct i40e_netdev_priv *np = netdev_priv(netdev);
2679 bool if_running = netif_running(netdev);
2680 struct i40e_pf *pf = np->vsi->back;
2681
2682 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2683 /* Offline tests */
2684 netif_info(pf, drv, netdev, "offline testing starting\n");
2685
2686 set_bit(__I40E_TESTING, pf->state);
2687
2688 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
2689 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) {
2690 dev_warn(&pf->pdev->dev,
2691 "Cannot start offline testing when PF is in reset state.\n");
2692 goto skip_ol_tests;
2693 }
2694
2695 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2696 dev_warn(&pf->pdev->dev,
2697 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2698 goto skip_ol_tests;
2699 }
2700
2701 /* If the device is online then take it offline */
2702 if (if_running)
2703 /* indicate we're in test mode */
2704 i40e_close(netdev);
2705 else
2706 /* This reset does not affect link - if it is
2707 * changed to a type of reset that does affect
2708 * link then the following link test would have
2709 * to be moved to before the reset
2710 */
2711 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2712
2713 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2714 eth_test->flags |= ETH_TEST_FL_FAILED;
2715
2716 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2717 eth_test->flags |= ETH_TEST_FL_FAILED;
2718
2719 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2720 eth_test->flags |= ETH_TEST_FL_FAILED;
2721
2722 /* run reg test last, a reset is required after it */
2723 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2724 eth_test->flags |= ETH_TEST_FL_FAILED;
2725
2726 clear_bit(__I40E_TESTING, pf->state);
2727 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2728
2729 if (if_running)
2730 i40e_open(netdev);
2731 } else {
2732 /* Online tests */
2733 netif_info(pf, drv, netdev, "online testing starting\n");
2734
2735 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2736 eth_test->flags |= ETH_TEST_FL_FAILED;
2737
2738 /* Offline only tests, not run in online; pass by default */
2739 data[I40E_ETH_TEST_REG] = 0;
2740 data[I40E_ETH_TEST_EEPROM] = 0;
2741 data[I40E_ETH_TEST_INTR] = 0;
2742 }
2743
2744 netif_info(pf, drv, netdev, "testing finished\n");
2745 return;
2746
2747skip_ol_tests:
2748 data[I40E_ETH_TEST_REG] = 1;
2749 data[I40E_ETH_TEST_EEPROM] = 1;
2750 data[I40E_ETH_TEST_INTR] = 1;
2751 data[I40E_ETH_TEST_LINK] = 1;
2752 eth_test->flags |= ETH_TEST_FL_FAILED;
2753 clear_bit(__I40E_TESTING, pf->state);
2754 netif_info(pf, drv, netdev, "testing failed\n");
2755}
2756
2757static void i40e_get_wol(struct net_device *netdev,
2758 struct ethtool_wolinfo *wol)
2759{
2760 struct i40e_netdev_priv *np = netdev_priv(netdev);
2761 struct i40e_pf *pf = np->vsi->back;
2762 struct i40e_hw *hw = &pf->hw;
2763 u16 wol_nvm_bits;
2764
2765 /* NVM bit on means WoL disabled for the port */
2766 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2767 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2768 wol->supported = 0;
2769 wol->wolopts = 0;
2770 } else {
2771 wol->supported = WAKE_MAGIC;
2772 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2773 }
2774}
2775
2776/**
2777 * i40e_set_wol - set the WakeOnLAN configuration
2778 * @netdev: the netdev in question
2779 * @wol: the ethtool WoL setting data
2780 **/
2781static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2782{
2783 struct i40e_netdev_priv *np = netdev_priv(netdev);
2784 struct i40e_pf *pf = np->vsi->back;
2785 struct i40e_vsi *vsi = np->vsi;
2786 struct i40e_hw *hw = &pf->hw;
2787 u16 wol_nvm_bits;
2788
2789 /* WoL not supported if this isn't the controlling PF on the port */
2790 if (hw->partition_id != 1) {
2791 i40e_partition_setting_complaint(pf);
2792 return -EOPNOTSUPP;
2793 }
2794
2795 if (vsi != pf->vsi[pf->lan_vsi])
2796 return -EOPNOTSUPP;
2797
2798 /* NVM bit on means WoL disabled for the port */
2799 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2800 if (BIT(hw->port) & wol_nvm_bits)
2801 return -EOPNOTSUPP;
2802
2803 /* only magic packet is supported */
2804 if (wol->wolopts & ~WAKE_MAGIC)
2805 return -EOPNOTSUPP;
2806
2807 /* is this a new value? */
2808 if (pf->wol_en != !!wol->wolopts) {
2809 pf->wol_en = !!wol->wolopts;
2810 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2811 }
2812
2813 return 0;
2814}
2815
2816static int i40e_set_phys_id(struct net_device *netdev,
2817 enum ethtool_phys_id_state state)
2818{
2819 struct i40e_netdev_priv *np = netdev_priv(netdev);
2820 struct i40e_pf *pf = np->vsi->back;
2821 struct i40e_hw *hw = &pf->hw;
2822 int blink_freq = 2;
2823 u16 temp_status;
2824 int ret = 0;
2825
2826 switch (state) {
2827 case ETHTOOL_ID_ACTIVE:
2828 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) {
2829 pf->led_status = i40e_led_get(hw);
2830 } else {
2831 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps))
2832 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2833 NULL);
2834 ret = i40e_led_get_phy(hw, &temp_status,
2835 &pf->phy_led_val);
2836 pf->led_status = temp_status;
2837 }
2838 return blink_freq;
2839 case ETHTOOL_ID_ON:
2840 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps))
2841 i40e_led_set(hw, 0xf, false);
2842 else
2843 ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2844 break;
2845 case ETHTOOL_ID_OFF:
2846 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps))
2847 i40e_led_set(hw, 0x0, false);
2848 else
2849 ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2850 break;
2851 case ETHTOOL_ID_INACTIVE:
2852 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) {
2853 i40e_led_set(hw, pf->led_status, false);
2854 } else {
2855 ret = i40e_led_set_phy(hw, false, pf->led_status,
2856 (pf->phy_led_val |
2857 I40E_PHY_LED_MODE_ORIG));
2858 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps))
2859 i40e_aq_set_phy_debug(hw, 0, NULL);
2860 }
2861 break;
2862 default:
2863 break;
2864 }
2865 if (ret)
2866 return -ENOENT;
2867 else
2868 return 0;
2869}
2870
2871/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2872 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2873 * 125us (8000 interrupts per second) == ITR(62)
2874 */
2875
2876/**
2877 * __i40e_get_coalesce - get per-queue coalesce settings
2878 * @netdev: the netdev to check
2879 * @ec: ethtool coalesce data structure
2880 * @queue: which queue to pick
2881 *
2882 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2883 * are per queue. If queue is <0 then we default to queue 0 as the
2884 * representative value.
2885 **/
2886static int __i40e_get_coalesce(struct net_device *netdev,
2887 struct ethtool_coalesce *ec,
2888 int queue)
2889{
2890 struct i40e_netdev_priv *np = netdev_priv(netdev);
2891 struct i40e_ring *rx_ring, *tx_ring;
2892 struct i40e_vsi *vsi = np->vsi;
2893
2894 ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2895
2896 /* rx and tx usecs has per queue value. If user doesn't specify the
2897 * queue, return queue 0's value to represent.
2898 */
2899 if (queue < 0)
2900 queue = 0;
2901 else if (queue >= vsi->num_queue_pairs)
2902 return -EINVAL;
2903
2904 rx_ring = vsi->rx_rings[queue];
2905 tx_ring = vsi->tx_rings[queue];
2906
2907 if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2908 ec->use_adaptive_rx_coalesce = 1;
2909
2910 if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2911 ec->use_adaptive_tx_coalesce = 1;
2912
2913 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2914 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2915
2916 /* we use the _usecs_high to store/set the interrupt rate limit
2917 * that the hardware supports, that almost but not quite
2918 * fits the original intent of the ethtool variable,
2919 * the rx_coalesce_usecs_high limits total interrupts
2920 * per second from both tx/rx sources.
2921 */
2922 ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2923 ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2924
2925 return 0;
2926}
2927
2928/**
2929 * i40e_get_coalesce - get a netdev's coalesce settings
2930 * @netdev: the netdev to check
2931 * @ec: ethtool coalesce data structure
2932 * @kernel_coal: ethtool CQE mode setting structure
2933 * @extack: extack for reporting error messages
2934 *
2935 * Gets the coalesce settings for a particular netdev. Note that if user has
2936 * modified per-queue settings, this only guarantees to represent queue 0. See
2937 * __i40e_get_coalesce for more details.
2938 **/
2939static int i40e_get_coalesce(struct net_device *netdev,
2940 struct ethtool_coalesce *ec,
2941 struct kernel_ethtool_coalesce *kernel_coal,
2942 struct netlink_ext_ack *extack)
2943{
2944 return __i40e_get_coalesce(netdev, ec, -1);
2945}
2946
2947/**
2948 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2949 * @netdev: netdev structure
2950 * @ec: ethtool's coalesce settings
2951 * @queue: the particular queue to read
2952 *
2953 * Will read a specific queue's coalesce settings
2954 **/
2955static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2956 struct ethtool_coalesce *ec)
2957{
2958 return __i40e_get_coalesce(netdev, ec, queue);
2959}
2960
2961/**
2962 * i40e_set_itr_per_queue - set ITR values for specific queue
2963 * @vsi: the VSI to set values for
2964 * @ec: coalesce settings from ethtool
2965 * @queue: the queue to modify
2966 *
2967 * Change the ITR settings for a specific queue.
2968 **/
2969static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2970 struct ethtool_coalesce *ec,
2971 int queue)
2972{
2973 struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2974 struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2975 struct i40e_pf *pf = vsi->back;
2976 struct i40e_hw *hw = &pf->hw;
2977 struct i40e_q_vector *q_vector;
2978 u16 intrl;
2979
2980 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2981
2982 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2983 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2984
2985 if (ec->use_adaptive_rx_coalesce)
2986 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2987 else
2988 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2989
2990 if (ec->use_adaptive_tx_coalesce)
2991 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2992 else
2993 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2994
2995 q_vector = rx_ring->q_vector;
2996 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2997
2998 q_vector = tx_ring->q_vector;
2999 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
3000
3001 /* The interrupt handler itself will take care of programming
3002 * the Tx and Rx ITR values based on the values we have entered
3003 * into the q_vector, no need to write the values now.
3004 */
3005
3006 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
3007 i40e_flush(hw);
3008}
3009
3010/**
3011 * __i40e_set_coalesce - set coalesce settings for particular queue
3012 * @netdev: the netdev to change
3013 * @ec: ethtool coalesce settings
3014 * @queue: the queue to change
3015 *
3016 * Sets the coalesce settings for a particular queue.
3017 **/
3018static int __i40e_set_coalesce(struct net_device *netdev,
3019 struct ethtool_coalesce *ec,
3020 int queue)
3021{
3022 struct i40e_netdev_priv *np = netdev_priv(netdev);
3023 u16 intrl_reg, cur_rx_itr, cur_tx_itr;
3024 struct i40e_vsi *vsi = np->vsi;
3025 struct i40e_pf *pf = vsi->back;
3026 int i;
3027
3028 if (ec->tx_max_coalesced_frames_irq)
3029 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
3030
3031 if (queue < 0) {
3032 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
3033 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
3034 } else if (queue < vsi->num_queue_pairs) {
3035 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
3036 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
3037 } else {
3038 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
3039 vsi->num_queue_pairs - 1);
3040 return -EINVAL;
3041 }
3042
3043 cur_tx_itr &= ~I40E_ITR_DYNAMIC;
3044 cur_rx_itr &= ~I40E_ITR_DYNAMIC;
3045
3046 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
3047 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
3048 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
3049 return -EINVAL;
3050 }
3051
3052 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
3053 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
3054 INTRL_REG_TO_USEC(I40E_MAX_INTRL));
3055 return -EINVAL;
3056 }
3057
3058 if (ec->rx_coalesce_usecs != cur_rx_itr &&
3059 ec->use_adaptive_rx_coalesce) {
3060 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
3061 return -EINVAL;
3062 }
3063
3064 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
3065 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
3066 return -EINVAL;
3067 }
3068
3069 if (ec->tx_coalesce_usecs != cur_tx_itr &&
3070 ec->use_adaptive_tx_coalesce) {
3071 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
3072 return -EINVAL;
3073 }
3074
3075 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
3076 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
3077 return -EINVAL;
3078 }
3079
3080 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
3081 ec->rx_coalesce_usecs = I40E_MIN_ITR;
3082
3083 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
3084 ec->tx_coalesce_usecs = I40E_MIN_ITR;
3085
3086 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
3087 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
3088 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
3089 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
3090 vsi->int_rate_limit);
3091 }
3092
3093 /* rx and tx usecs has per queue value. If user doesn't specify the
3094 * queue, apply to all queues.
3095 */
3096 if (queue < 0) {
3097 for (i = 0; i < vsi->num_queue_pairs; i++)
3098 i40e_set_itr_per_queue(vsi, ec, i);
3099 } else {
3100 i40e_set_itr_per_queue(vsi, ec, queue);
3101 }
3102
3103 return 0;
3104}
3105
3106/**
3107 * i40e_set_coalesce - set coalesce settings for every queue on the netdev
3108 * @netdev: the netdev to change
3109 * @ec: ethtool coalesce settings
3110 * @kernel_coal: ethtool CQE mode setting structure
3111 * @extack: extack for reporting error messages
3112 *
3113 * This will set each queue to the same coalesce settings.
3114 **/
3115static int i40e_set_coalesce(struct net_device *netdev,
3116 struct ethtool_coalesce *ec,
3117 struct kernel_ethtool_coalesce *kernel_coal,
3118 struct netlink_ext_ack *extack)
3119{
3120 return __i40e_set_coalesce(netdev, ec, -1);
3121}
3122
3123/**
3124 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
3125 * @netdev: the netdev to change
3126 * @ec: ethtool's coalesce settings
3127 * @queue: the queue to change
3128 *
3129 * Sets the specified queue's coalesce settings.
3130 **/
3131static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
3132 struct ethtool_coalesce *ec)
3133{
3134 return __i40e_set_coalesce(netdev, ec, queue);
3135}
3136
3137/**
3138 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
3139 * @pf: pointer to the physical function struct
3140 * @cmd: ethtool rxnfc command
3141 *
3142 * Returns Success if the flow is supported, else Invalid Input.
3143 **/
3144static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
3145{
3146 struct i40e_hw *hw = &pf->hw;
3147 u8 flow_pctype = 0;
3148 u64 i_set = 0;
3149
3150 cmd->data = 0;
3151
3152 switch (cmd->flow_type) {
3153 case TCP_V4_FLOW:
3154 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3155 break;
3156 case UDP_V4_FLOW:
3157 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3158 break;
3159 case TCP_V6_FLOW:
3160 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3161 break;
3162 case UDP_V6_FLOW:
3163 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3164 break;
3165 case SCTP_V4_FLOW:
3166 case AH_ESP_V4_FLOW:
3167 case AH_V4_FLOW:
3168 case ESP_V4_FLOW:
3169 case IPV4_FLOW:
3170 case SCTP_V6_FLOW:
3171 case AH_ESP_V6_FLOW:
3172 case AH_V6_FLOW:
3173 case ESP_V6_FLOW:
3174 case IPV6_FLOW:
3175 /* Default is src/dest for IP, no matter the L4 hashing */
3176 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3177 break;
3178 default:
3179 return -EINVAL;
3180 }
3181
3182 /* Read flow based hash input set register */
3183 if (flow_pctype) {
3184 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3185 flow_pctype)) |
3186 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3187 flow_pctype)) << 32);
3188 }
3189
3190 /* Process bits of hash input set */
3191 if (i_set) {
3192 if (i_set & I40E_L4_SRC_MASK)
3193 cmd->data |= RXH_L4_B_0_1;
3194 if (i_set & I40E_L4_DST_MASK)
3195 cmd->data |= RXH_L4_B_2_3;
3196
3197 if (cmd->flow_type == TCP_V4_FLOW ||
3198 cmd->flow_type == UDP_V4_FLOW) {
3199 if (hw->mac.type == I40E_MAC_X722) {
3200 if (i_set & I40E_X722_L3_SRC_MASK)
3201 cmd->data |= RXH_IP_SRC;
3202 if (i_set & I40E_X722_L3_DST_MASK)
3203 cmd->data |= RXH_IP_DST;
3204 } else {
3205 if (i_set & I40E_L3_SRC_MASK)
3206 cmd->data |= RXH_IP_SRC;
3207 if (i_set & I40E_L3_DST_MASK)
3208 cmd->data |= RXH_IP_DST;
3209 }
3210 } else if (cmd->flow_type == TCP_V6_FLOW ||
3211 cmd->flow_type == UDP_V6_FLOW) {
3212 if (i_set & I40E_L3_V6_SRC_MASK)
3213 cmd->data |= RXH_IP_SRC;
3214 if (i_set & I40E_L3_V6_DST_MASK)
3215 cmd->data |= RXH_IP_DST;
3216 }
3217 }
3218
3219 return 0;
3220}
3221
3222/**
3223 * i40e_check_mask - Check whether a mask field is set
3224 * @mask: the full mask value
3225 * @field: mask of the field to check
3226 *
3227 * If the given mask is fully set, return positive value. If the mask for the
3228 * field is fully unset, return zero. Otherwise return a negative error code.
3229 **/
3230static int i40e_check_mask(u64 mask, u64 field)
3231{
3232 u64 value = mask & field;
3233
3234 if (value == field)
3235 return 1;
3236 else if (!value)
3237 return 0;
3238 else
3239 return -1;
3240}
3241
3242/**
3243 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3244 * @fsp: pointer to rx flow specification
3245 * @data: pointer to userdef data structure for storage
3246 *
3247 * Read the user-defined data and deconstruct the value into a structure. No
3248 * other code should read the user-defined data, so as to ensure that every
3249 * place consistently reads the value correctly.
3250 *
3251 * The user-defined field is a 64bit Big Endian format value, which we
3252 * deconstruct by reading bits or bit fields from it. Single bit flags shall
3253 * be defined starting from the highest bits, while small bit field values
3254 * shall be defined starting from the lowest bits.
3255 *
3256 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3257 * and the filter should be rejected. The data structure will always be
3258 * modified even if FLOW_EXT is not set.
3259 *
3260 **/
3261static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3262 struct i40e_rx_flow_userdef *data)
3263{
3264 u64 value, mask;
3265 int valid;
3266
3267 /* Zero memory first so it's always consistent. */
3268 memset(data, 0, sizeof(*data));
3269
3270 if (!(fsp->flow_type & FLOW_EXT))
3271 return 0;
3272
3273 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3274 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3275
3276#define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0)
3277#define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16)
3278#define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0)
3279
3280 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3281 if (valid < 0) {
3282 return -EINVAL;
3283 } else if (valid) {
3284 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3285 data->flex_offset =
3286 FIELD_GET(I40E_USERDEF_FLEX_OFFSET, value);
3287 data->flex_filter = true;
3288 }
3289
3290 return 0;
3291}
3292
3293/**
3294 * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3295 * @fsp: pointer to rx_flow specification
3296 * @data: pointer to return userdef data
3297 *
3298 * Reads the userdef data structure and properly fills in the user defined
3299 * fields of the rx_flow_spec.
3300 **/
3301static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3302 struct i40e_rx_flow_userdef *data)
3303{
3304 u64 value = 0, mask = 0;
3305
3306 if (data->flex_filter) {
3307 value |= data->flex_word;
3308 value |= (u64)data->flex_offset << 16;
3309 mask |= I40E_USERDEF_FLEX_FILTER;
3310 }
3311
3312 if (value || mask)
3313 fsp->flow_type |= FLOW_EXT;
3314
3315 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3316 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3317}
3318
3319/**
3320 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3321 * @pf: Pointer to the physical function struct
3322 * @cmd: The command to get or set Rx flow classification rules
3323 * @rule_locs: Array of used rule locations
3324 *
3325 * This function populates both the total and actual rule count of
3326 * the ethtool flow classification command
3327 *
3328 * Returns 0 on success or -EMSGSIZE if entry not found
3329 **/
3330static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3331 struct ethtool_rxnfc *cmd,
3332 u32 *rule_locs)
3333{
3334 struct i40e_fdir_filter *rule;
3335 struct hlist_node *node2;
3336 int cnt = 0;
3337
3338 /* report total rule count */
3339 cmd->data = i40e_get_fd_cnt_all(pf);
3340
3341 hlist_for_each_entry_safe(rule, node2,
3342 &pf->fdir_filter_list, fdir_node) {
3343 if (cnt == cmd->rule_cnt)
3344 return -EMSGSIZE;
3345
3346 rule_locs[cnt] = rule->fd_id;
3347 cnt++;
3348 }
3349
3350 cmd->rule_cnt = cnt;
3351
3352 return 0;
3353}
3354
3355/**
3356 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3357 * @pf: Pointer to the physical function struct
3358 * @cmd: The command to get or set Rx flow classification rules
3359 *
3360 * This function looks up a filter based on the Rx flow classification
3361 * command and fills the flow spec info for it if found
3362 *
3363 * Returns 0 on success or -EINVAL if filter not found
3364 **/
3365static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3366 struct ethtool_rxnfc *cmd)
3367{
3368 struct ethtool_rx_flow_spec *fsp =
3369 (struct ethtool_rx_flow_spec *)&cmd->fs;
3370 struct i40e_rx_flow_userdef userdef = {0};
3371 struct i40e_fdir_filter *rule = NULL;
3372 struct hlist_node *node2;
3373 u64 input_set;
3374 u16 index;
3375
3376 hlist_for_each_entry_safe(rule, node2,
3377 &pf->fdir_filter_list, fdir_node) {
3378 if (fsp->location <= rule->fd_id)
3379 break;
3380 }
3381
3382 if (!rule || fsp->location != rule->fd_id)
3383 return -EINVAL;
3384
3385 fsp->flow_type = rule->flow_type;
3386 if (fsp->flow_type == IP_USER_FLOW) {
3387 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3388 fsp->h_u.usr_ip4_spec.proto = 0;
3389 fsp->m_u.usr_ip4_spec.proto = 0;
3390 }
3391
3392 if (fsp->flow_type == IPV6_USER_FLOW ||
3393 fsp->flow_type == UDP_V6_FLOW ||
3394 fsp->flow_type == TCP_V6_FLOW ||
3395 fsp->flow_type == SCTP_V6_FLOW) {
3396 /* Reverse the src and dest notion, since the HW views them
3397 * from Tx perspective where as the user expects it from
3398 * Rx filter view.
3399 */
3400 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3401 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3402 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3403 sizeof(__be32) * 4);
3404 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3405 sizeof(__be32) * 4);
3406 } else {
3407 /* Reverse the src and dest notion, since the HW views them
3408 * from Tx perspective where as the user expects it from
3409 * Rx filter view.
3410 */
3411 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3412 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3413 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3414 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3415 }
3416
3417 switch (rule->flow_type) {
3418 case SCTP_V4_FLOW:
3419 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3420 break;
3421 case TCP_V4_FLOW:
3422 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3423 break;
3424 case UDP_V4_FLOW:
3425 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3426 break;
3427 case SCTP_V6_FLOW:
3428 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3429 break;
3430 case TCP_V6_FLOW:
3431 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3432 break;
3433 case UDP_V6_FLOW:
3434 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3435 break;
3436 case IP_USER_FLOW:
3437 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3438 break;
3439 case IPV6_USER_FLOW:
3440 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3441 break;
3442 default:
3443 /* If we have stored a filter with a flow type not listed here
3444 * it is almost certainly a driver bug. WARN(), and then
3445 * assign the input_set as if all fields are enabled to avoid
3446 * reading unassigned memory.
3447 */
3448 WARN(1, "Missing input set index for flow_type %d\n",
3449 rule->flow_type);
3450 input_set = 0xFFFFFFFFFFFFFFFFULL;
3451 goto no_input_set;
3452 }
3453
3454 input_set = i40e_read_fd_input_set(pf, index);
3455
3456no_input_set:
3457 if (input_set & I40E_L3_V6_SRC_MASK) {
3458 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3459 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3460 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3461 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3462 }
3463
3464 if (input_set & I40E_L3_V6_DST_MASK) {
3465 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3466 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3467 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3468 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3469 }
3470
3471 if (input_set & I40E_L3_SRC_MASK)
3472 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3473
3474 if (input_set & I40E_L3_DST_MASK)
3475 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3476
3477 if (input_set & I40E_L4_SRC_MASK)
3478 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3479
3480 if (input_set & I40E_L4_DST_MASK)
3481 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3482
3483 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3484 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3485 else
3486 fsp->ring_cookie = rule->q_index;
3487
3488 if (rule->vlan_tag) {
3489 fsp->h_ext.vlan_etype = rule->vlan_etype;
3490 fsp->m_ext.vlan_etype = htons(0xFFFF);
3491 fsp->h_ext.vlan_tci = rule->vlan_tag;
3492 fsp->m_ext.vlan_tci = htons(0xFFFF);
3493 fsp->flow_type |= FLOW_EXT;
3494 }
3495
3496 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3497 struct i40e_vsi *vsi;
3498
3499 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3500 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3501 /* VFs are zero-indexed by the driver, but ethtool
3502 * expects them to be one-indexed, so add one here
3503 */
3504 u64 ring_vf = vsi->vf_id + 1;
3505
3506 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3507 fsp->ring_cookie |= ring_vf;
3508 }
3509 }
3510
3511 if (rule->flex_filter) {
3512 userdef.flex_filter = true;
3513 userdef.flex_word = be16_to_cpu(rule->flex_word);
3514 userdef.flex_offset = rule->flex_offset;
3515 }
3516
3517 i40e_fill_rx_flow_user_data(fsp, &userdef);
3518
3519 return 0;
3520}
3521
3522/**
3523 * i40e_get_rxnfc - command to get RX flow classification rules
3524 * @netdev: network interface device structure
3525 * @cmd: ethtool rxnfc command
3526 * @rule_locs: pointer to store rule data
3527 *
3528 * Returns Success if the command is supported.
3529 **/
3530static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3531 u32 *rule_locs)
3532{
3533 struct i40e_netdev_priv *np = netdev_priv(netdev);
3534 struct i40e_vsi *vsi = np->vsi;
3535 struct i40e_pf *pf = vsi->back;
3536 int ret = -EOPNOTSUPP;
3537
3538 switch (cmd->cmd) {
3539 case ETHTOOL_GRXRINGS:
3540 cmd->data = vsi->rss_size;
3541 ret = 0;
3542 break;
3543 case ETHTOOL_GRXFH:
3544 ret = i40e_get_rss_hash_opts(pf, cmd);
3545 break;
3546 case ETHTOOL_GRXCLSRLCNT:
3547 cmd->rule_cnt = pf->fdir_pf_active_filters;
3548 /* report total rule count */
3549 cmd->data = i40e_get_fd_cnt_all(pf);
3550 ret = 0;
3551 break;
3552 case ETHTOOL_GRXCLSRULE:
3553 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3554 break;
3555 case ETHTOOL_GRXCLSRLALL:
3556 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3557 break;
3558 default:
3559 break;
3560 }
3561
3562 return ret;
3563}
3564
3565/**
3566 * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3567 * @hw: hw structure
3568 * @nfc: pointer to user request
3569 * @i_setc: bits currently set
3570 *
3571 * Returns value of bits to be set per user request
3572 **/
3573static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw,
3574 struct ethtool_rxnfc *nfc,
3575 u64 i_setc)
3576{
3577 u64 i_set = i_setc;
3578 u64 src_l3 = 0, dst_l3 = 0;
3579
3580 if (nfc->data & RXH_L4_B_0_1)
3581 i_set |= I40E_L4_SRC_MASK;
3582 else
3583 i_set &= ~I40E_L4_SRC_MASK;
3584 if (nfc->data & RXH_L4_B_2_3)
3585 i_set |= I40E_L4_DST_MASK;
3586 else
3587 i_set &= ~I40E_L4_DST_MASK;
3588
3589 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3590 src_l3 = I40E_L3_V6_SRC_MASK;
3591 dst_l3 = I40E_L3_V6_DST_MASK;
3592 } else if (nfc->flow_type == TCP_V4_FLOW ||
3593 nfc->flow_type == UDP_V4_FLOW) {
3594 if (hw->mac.type == I40E_MAC_X722) {
3595 src_l3 = I40E_X722_L3_SRC_MASK;
3596 dst_l3 = I40E_X722_L3_DST_MASK;
3597 } else {
3598 src_l3 = I40E_L3_SRC_MASK;
3599 dst_l3 = I40E_L3_DST_MASK;
3600 }
3601 } else {
3602 /* Any other flow type are not supported here */
3603 return i_set;
3604 }
3605
3606 if (nfc->data & RXH_IP_SRC)
3607 i_set |= src_l3;
3608 else
3609 i_set &= ~src_l3;
3610 if (nfc->data & RXH_IP_DST)
3611 i_set |= dst_l3;
3612 else
3613 i_set &= ~dst_l3;
3614
3615 return i_set;
3616}
3617
3618#define FLOW_PCTYPES_SIZE 64
3619/**
3620 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3621 * @pf: pointer to the physical function struct
3622 * @nfc: ethtool rxnfc command
3623 *
3624 * Returns Success if the flow input set is supported.
3625 **/
3626static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3627{
3628 struct i40e_hw *hw = &pf->hw;
3629 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3630 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3631 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE);
3632 u64 i_set, i_setc;
3633
3634 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE);
3635
3636 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
3637 dev_err(&pf->pdev->dev,
3638 "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3639 return -EOPNOTSUPP;
3640 }
3641
3642 /* RSS does not support anything other than hashing
3643 * to queues on src and dst IPs and ports
3644 */
3645 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3646 RXH_L4_B_0_1 | RXH_L4_B_2_3))
3647 return -EINVAL;
3648
3649 switch (nfc->flow_type) {
3650 case TCP_V4_FLOW:
3651 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes);
3652 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,
3653 pf->hw.caps))
3654 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK,
3655 flow_pctypes);
3656 break;
3657 case TCP_V6_FLOW:
3658 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes);
3659 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,
3660 pf->hw.caps))
3661 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK,
3662 flow_pctypes);
3663 break;
3664 case UDP_V4_FLOW:
3665 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes);
3666 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,
3667 pf->hw.caps)) {
3668 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP,
3669 flow_pctypes);
3670 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP,
3671 flow_pctypes);
3672 }
3673 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3674 break;
3675 case UDP_V6_FLOW:
3676 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes);
3677 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,
3678 pf->hw.caps)) {
3679 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP,
3680 flow_pctypes);
3681 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP,
3682 flow_pctypes);
3683 }
3684 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3685 break;
3686 case AH_ESP_V4_FLOW:
3687 case AH_V4_FLOW:
3688 case ESP_V4_FLOW:
3689 case SCTP_V4_FLOW:
3690 if ((nfc->data & RXH_L4_B_0_1) ||
3691 (nfc->data & RXH_L4_B_2_3))
3692 return -EINVAL;
3693 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3694 break;
3695 case AH_ESP_V6_FLOW:
3696 case AH_V6_FLOW:
3697 case ESP_V6_FLOW:
3698 case SCTP_V6_FLOW:
3699 if ((nfc->data & RXH_L4_B_0_1) ||
3700 (nfc->data & RXH_L4_B_2_3))
3701 return -EINVAL;
3702 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3703 break;
3704 case IPV4_FLOW:
3705 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3706 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3707 break;
3708 case IPV6_FLOW:
3709 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3710 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3711 break;
3712 default:
3713 return -EINVAL;
3714 }
3715
3716 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) {
3717 u8 flow_id;
3718
3719 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) {
3720 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) |
3721 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32);
3722 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc);
3723
3724 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id),
3725 (u32)i_set);
3726 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id),
3727 (u32)(i_set >> 32));
3728 hena |= BIT_ULL(flow_id);
3729 }
3730 }
3731
3732 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3733 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3734 i40e_flush(hw);
3735
3736 return 0;
3737}
3738
3739/**
3740 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3741 * @vsi: Pointer to the targeted VSI
3742 * @input: The filter to update or NULL to indicate deletion
3743 * @sw_idx: Software index to the filter
3744 * @cmd: The command to get or set Rx flow classification rules
3745 *
3746 * This function updates (or deletes) a Flow Director entry from
3747 * the hlist of the corresponding PF
3748 *
3749 * Returns 0 on success
3750 **/
3751static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3752 struct i40e_fdir_filter *input,
3753 u16 sw_idx,
3754 struct ethtool_rxnfc *cmd)
3755{
3756 struct i40e_fdir_filter *rule, *parent;
3757 struct i40e_pf *pf = vsi->back;
3758 struct hlist_node *node2;
3759 int err = -EINVAL;
3760
3761 parent = NULL;
3762 rule = NULL;
3763
3764 hlist_for_each_entry_safe(rule, node2,
3765 &pf->fdir_filter_list, fdir_node) {
3766 /* hash found, or no matching entry */
3767 if (rule->fd_id >= sw_idx)
3768 break;
3769 parent = rule;
3770 }
3771
3772 /* if there is an old rule occupying our place remove it */
3773 if (rule && (rule->fd_id == sw_idx)) {
3774 /* Remove this rule, since we're either deleting it, or
3775 * replacing it.
3776 */
3777 err = i40e_add_del_fdir(vsi, rule, false);
3778 hlist_del(&rule->fdir_node);
3779 kfree(rule);
3780 pf->fdir_pf_active_filters--;
3781 }
3782
3783 /* If we weren't given an input, this is a delete, so just return the
3784 * error code indicating if there was an entry at the requested slot
3785 */
3786 if (!input)
3787 return err;
3788
3789 /* Otherwise, install the new rule as requested */
3790 INIT_HLIST_NODE(&input->fdir_node);
3791
3792 /* add filter to the list */
3793 if (parent)
3794 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3795 else
3796 hlist_add_head(&input->fdir_node,
3797 &pf->fdir_filter_list);
3798
3799 /* update counts */
3800 pf->fdir_pf_active_filters++;
3801
3802 return 0;
3803}
3804
3805/**
3806 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3807 * @pf: pointer to PF structure
3808 *
3809 * This function searches the list of filters and determines which FLX_PIT
3810 * entries are still required. It will prune any entries which are no longer
3811 * in use after the deletion.
3812 **/
3813static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3814{
3815 struct i40e_flex_pit *entry, *tmp;
3816 struct i40e_fdir_filter *rule;
3817
3818 /* First, we'll check the l3 table */
3819 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3820 bool found = false;
3821
3822 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3823 if (rule->flow_type != IP_USER_FLOW)
3824 continue;
3825 if (rule->flex_filter &&
3826 rule->flex_offset == entry->src_offset) {
3827 found = true;
3828 break;
3829 }
3830 }
3831
3832 /* If we didn't find the filter, then we can prune this entry
3833 * from the list.
3834 */
3835 if (!found) {
3836 list_del(&entry->list);
3837 kfree(entry);
3838 }
3839 }
3840
3841 /* Followed by the L4 table */
3842 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3843 bool found = false;
3844
3845 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3846 /* Skip this filter if it's L3, since we already
3847 * checked those in the above loop
3848 */
3849 if (rule->flow_type == IP_USER_FLOW)
3850 continue;
3851 if (rule->flex_filter &&
3852 rule->flex_offset == entry->src_offset) {
3853 found = true;
3854 break;
3855 }
3856 }
3857
3858 /* If we didn't find the filter, then we can prune this entry
3859 * from the list.
3860 */
3861 if (!found) {
3862 list_del(&entry->list);
3863 kfree(entry);
3864 }
3865 }
3866}
3867
3868/**
3869 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3870 * @vsi: Pointer to the targeted VSI
3871 * @cmd: The command to get or set Rx flow classification rules
3872 *
3873 * The function removes a Flow Director filter entry from the
3874 * hlist of the corresponding PF
3875 *
3876 * Returns 0 on success
3877 */
3878static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3879 struct ethtool_rxnfc *cmd)
3880{
3881 struct ethtool_rx_flow_spec *fsp =
3882 (struct ethtool_rx_flow_spec *)&cmd->fs;
3883 struct i40e_pf *pf = vsi->back;
3884 int ret = 0;
3885
3886 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3887 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3888 return -EBUSY;
3889
3890 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3891 return -EBUSY;
3892
3893 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3894
3895 i40e_prune_flex_pit_list(pf);
3896
3897 i40e_fdir_check_and_reenable(pf);
3898 return ret;
3899}
3900
3901/**
3902 * i40e_unused_pit_index - Find an unused PIT index for given list
3903 * @pf: the PF data structure
3904 *
3905 * Find the first unused flexible PIT index entry. We search both the L3 and
3906 * L4 flexible PIT lists so that the returned index is unique and unused by
3907 * either currently programmed L3 or L4 filters. We use a bit field as storage
3908 * to track which indexes are already used.
3909 **/
3910static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3911{
3912 unsigned long available_index = 0xFF;
3913 struct i40e_flex_pit *entry;
3914
3915 /* We need to make sure that the new index isn't in use by either L3
3916 * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3917 * L4 to use the same index.
3918 */
3919
3920 list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3921 clear_bit(entry->pit_index, &available_index);
3922
3923 list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3924 clear_bit(entry->pit_index, &available_index);
3925
3926 return find_first_bit(&available_index, 8);
3927}
3928
3929/**
3930 * i40e_find_flex_offset - Find an existing flex src_offset
3931 * @flex_pit_list: L3 or L4 flex PIT list
3932 * @src_offset: new src_offset to find
3933 *
3934 * Searches the flex_pit_list for an existing offset. If no offset is
3935 * currently programmed, then this will return an ERR_PTR if there is no space
3936 * to add a new offset, otherwise it returns NULL.
3937 **/
3938static
3939struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3940 u16 src_offset)
3941{
3942 struct i40e_flex_pit *entry;
3943 int size = 0;
3944
3945 /* Search for the src_offset first. If we find a matching entry
3946 * already programmed, we can simply re-use it.
3947 */
3948 list_for_each_entry(entry, flex_pit_list, list) {
3949 size++;
3950 if (entry->src_offset == src_offset)
3951 return entry;
3952 }
3953
3954 /* If we haven't found an entry yet, then the provided src offset has
3955 * not yet been programmed. We will program the src offset later on,
3956 * but we need to indicate whether there is enough space to do so
3957 * here. We'll make use of ERR_PTR for this purpose.
3958 */
3959 if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3960 return ERR_PTR(-ENOSPC);
3961
3962 return NULL;
3963}
3964
3965/**
3966 * i40e_add_flex_offset - Add src_offset to flex PIT table list
3967 * @flex_pit_list: L3 or L4 flex PIT list
3968 * @src_offset: new src_offset to add
3969 * @pit_index: the PIT index to program
3970 *
3971 * This function programs the new src_offset to the list. It is expected that
3972 * i40e_find_flex_offset has already been tried and returned NULL, indicating
3973 * that this offset is not programmed, and that the list has enough space to
3974 * store another offset.
3975 *
3976 * Returns 0 on success, and negative value on error.
3977 **/
3978static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3979 u16 src_offset,
3980 u8 pit_index)
3981{
3982 struct i40e_flex_pit *new_pit, *entry;
3983
3984 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3985 if (!new_pit)
3986 return -ENOMEM;
3987
3988 new_pit->src_offset = src_offset;
3989 new_pit->pit_index = pit_index;
3990
3991 /* We need to insert this item such that the list is sorted by
3992 * src_offset in ascending order.
3993 */
3994 list_for_each_entry(entry, flex_pit_list, list) {
3995 if (new_pit->src_offset < entry->src_offset) {
3996 list_add_tail(&new_pit->list, &entry->list);
3997 return 0;
3998 }
3999
4000 /* If we found an entry with our offset already programmed we
4001 * can simply return here, after freeing the memory. However,
4002 * if the pit_index does not match we need to report an error.
4003 */
4004 if (new_pit->src_offset == entry->src_offset) {
4005 int err = 0;
4006
4007 /* If the PIT index is not the same we can't re-use
4008 * the entry, so we must report an error.
4009 */
4010 if (new_pit->pit_index != entry->pit_index)
4011 err = -EINVAL;
4012
4013 kfree(new_pit);
4014 return err;
4015 }
4016 }
4017
4018 /* If we reached here, then we haven't yet added the item. This means
4019 * that we should add the item at the end of the list.
4020 */
4021 list_add_tail(&new_pit->list, flex_pit_list);
4022 return 0;
4023}
4024
4025/**
4026 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
4027 * @pf: Pointer to the PF structure
4028 * @flex_pit_list: list of flexible src offsets in use
4029 * @flex_pit_start: index to first entry for this section of the table
4030 *
4031 * In order to handle flexible data, the hardware uses a table of values
4032 * called the FLX_PIT table. This table is used to indicate which sections of
4033 * the input correspond to what PIT index values. Unfortunately, hardware is
4034 * very restrictive about programming this table. Entries must be ordered by
4035 * src_offset in ascending order, without duplicates. Additionally, unused
4036 * entries must be set to the unused index value, and must have valid size and
4037 * length according to the src_offset ordering.
4038 *
4039 * This function will reprogram the FLX_PIT register from a book-keeping
4040 * structure that we guarantee is already ordered correctly, and has no more
4041 * than 3 entries.
4042 *
4043 * To make things easier, we only support flexible values of one word length,
4044 * rather than allowing variable length flexible values.
4045 **/
4046static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
4047 struct list_head *flex_pit_list,
4048 int flex_pit_start)
4049{
4050 struct i40e_flex_pit *entry = NULL;
4051 u16 last_offset = 0;
4052 int i = 0, j = 0;
4053
4054 /* First, loop over the list of flex PIT entries, and reprogram the
4055 * registers.
4056 */
4057 list_for_each_entry(entry, flex_pit_list, list) {
4058 /* We have to be careful when programming values for the
4059 * largest SRC_OFFSET value. It is possible that adding
4060 * additional empty values at the end would overflow the space
4061 * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
4062 * we check here and add the empty values prior to adding the
4063 * largest value.
4064 *
4065 * To determine this, we will use a loop from i+1 to 3, which
4066 * will determine whether the unused entries would have valid
4067 * SRC_OFFSET. Note that there cannot be extra entries past
4068 * this value, because the only valid values would have been
4069 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
4070 * have been added to the list in the first place.
4071 */
4072 for (j = i + 1; j < 3; j++) {
4073 u16 offset = entry->src_offset + j;
4074 int index = flex_pit_start + i;
4075 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4076 1,
4077 offset - 3);
4078
4079 if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
4080 i40e_write_rx_ctl(&pf->hw,
4081 I40E_PRTQF_FLX_PIT(index),
4082 value);
4083 i++;
4084 }
4085 }
4086
4087 /* Now, we can program the actual value into the table */
4088 i40e_write_rx_ctl(&pf->hw,
4089 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4090 I40E_FLEX_PREP_VAL(entry->pit_index + 50,
4091 1,
4092 entry->src_offset));
4093 i++;
4094 }
4095
4096 /* In order to program the last entries in the table, we need to
4097 * determine the valid offset. If the list is empty, we'll just start
4098 * with 0. Otherwise, we'll start with the last item offset and add 1.
4099 * This ensures that all entries have valid sizes. If we don't do this
4100 * correctly, the hardware will disable flexible field parsing.
4101 */
4102 if (!list_empty(flex_pit_list))
4103 last_offset = list_prev_entry(entry, list)->src_offset + 1;
4104
4105 for (; i < 3; i++, last_offset++) {
4106 i40e_write_rx_ctl(&pf->hw,
4107 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4108 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4109 1,
4110 last_offset));
4111 }
4112}
4113
4114/**
4115 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
4116 * @pf: pointer to the PF structure
4117 *
4118 * This function reprograms both the L3 and L4 FLX_PIT tables. See the
4119 * internal helper function for implementation details.
4120 **/
4121static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
4122{
4123 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
4124 I40E_FLEX_PIT_IDX_START_L3);
4125
4126 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
4127 I40E_FLEX_PIT_IDX_START_L4);
4128
4129 /* We also need to program the L3 and L4 GLQF ORT register */
4130 i40e_write_rx_ctl(&pf->hw,
4131 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
4132 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
4133 3, 1));
4134
4135 i40e_write_rx_ctl(&pf->hw,
4136 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
4137 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
4138 3, 1));
4139}
4140
4141/**
4142 * i40e_flow_str - Converts a flow_type into a human readable string
4143 * @fsp: the flow specification
4144 *
4145 * Currently only flow types we support are included here, and the string
4146 * value attempts to match what ethtool would use to configure this flow type.
4147 **/
4148static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
4149{
4150 switch (fsp->flow_type & ~FLOW_EXT) {
4151 case TCP_V4_FLOW:
4152 return "tcp4";
4153 case UDP_V4_FLOW:
4154 return "udp4";
4155 case SCTP_V4_FLOW:
4156 return "sctp4";
4157 case IP_USER_FLOW:
4158 return "ip4";
4159 case TCP_V6_FLOW:
4160 return "tcp6";
4161 case UDP_V6_FLOW:
4162 return "udp6";
4163 case SCTP_V6_FLOW:
4164 return "sctp6";
4165 case IPV6_USER_FLOW:
4166 return "ip6";
4167 default:
4168 return "unknown";
4169 }
4170}
4171
4172/**
4173 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
4174 * @pit_index: PIT index to convert
4175 *
4176 * Returns the mask for a given PIT index. Will return 0 if the pit_index is
4177 * of range.
4178 **/
4179static u64 i40e_pit_index_to_mask(int pit_index)
4180{
4181 switch (pit_index) {
4182 case 0:
4183 return I40E_FLEX_50_MASK;
4184 case 1:
4185 return I40E_FLEX_51_MASK;
4186 case 2:
4187 return I40E_FLEX_52_MASK;
4188 case 3:
4189 return I40E_FLEX_53_MASK;
4190 case 4:
4191 return I40E_FLEX_54_MASK;
4192 case 5:
4193 return I40E_FLEX_55_MASK;
4194 case 6:
4195 return I40E_FLEX_56_MASK;
4196 case 7:
4197 return I40E_FLEX_57_MASK;
4198 default:
4199 return 0;
4200 }
4201}
4202
4203/**
4204 * i40e_print_input_set - Show changes between two input sets
4205 * @vsi: the vsi being configured
4206 * @old: the old input set
4207 * @new: the new input set
4208 *
4209 * Print the difference between old and new input sets by showing which series
4210 * of words are toggled on or off. Only displays the bits we actually support
4211 * changing.
4212 **/
4213static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4214{
4215 struct i40e_pf *pf = vsi->back;
4216 bool old_value, new_value;
4217 int i;
4218
4219 old_value = !!(old & I40E_L3_SRC_MASK);
4220 new_value = !!(new & I40E_L3_SRC_MASK);
4221 if (old_value != new_value)
4222 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4223 old_value ? "ON" : "OFF",
4224 new_value ? "ON" : "OFF");
4225
4226 old_value = !!(old & I40E_L3_DST_MASK);
4227 new_value = !!(new & I40E_L3_DST_MASK);
4228 if (old_value != new_value)
4229 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4230 old_value ? "ON" : "OFF",
4231 new_value ? "ON" : "OFF");
4232
4233 old_value = !!(old & I40E_L4_SRC_MASK);
4234 new_value = !!(new & I40E_L4_SRC_MASK);
4235 if (old_value != new_value)
4236 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4237 old_value ? "ON" : "OFF",
4238 new_value ? "ON" : "OFF");
4239
4240 old_value = !!(old & I40E_L4_DST_MASK);
4241 new_value = !!(new & I40E_L4_DST_MASK);
4242 if (old_value != new_value)
4243 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4244 old_value ? "ON" : "OFF",
4245 new_value ? "ON" : "OFF");
4246
4247 old_value = !!(old & I40E_VERIFY_TAG_MASK);
4248 new_value = !!(new & I40E_VERIFY_TAG_MASK);
4249 if (old_value != new_value)
4250 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4251 old_value ? "ON" : "OFF",
4252 new_value ? "ON" : "OFF");
4253
4254 /* Show change of flexible filter entries */
4255 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4256 u64 flex_mask = i40e_pit_index_to_mask(i);
4257
4258 old_value = !!(old & flex_mask);
4259 new_value = !!(new & flex_mask);
4260 if (old_value != new_value)
4261 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4262 i,
4263 old_value ? "ON" : "OFF",
4264 new_value ? "ON" : "OFF");
4265 }
4266
4267 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n",
4268 old);
4269 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4270 new);
4271}
4272
4273/**
4274 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4275 * @vsi: pointer to the targeted VSI
4276 * @fsp: pointer to Rx flow specification
4277 * @userdef: userdefined data from flow specification
4278 *
4279 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4280 * for partial matches exists with a few limitations. First, hardware only
4281 * supports masking by word boundary (2 bytes) and not per individual bit.
4282 * Second, hardware is limited to using one mask for a flow type and cannot
4283 * use a separate mask for each filter.
4284 *
4285 * To support these limitations, if we already have a configured filter for
4286 * the specified type, this function enforces that new filters of the type
4287 * match the configured input set. Otherwise, if we do not have a filter of
4288 * the specified type, we allow the input set to be updated to match the
4289 * desired filter.
4290 *
4291 * To help ensure that administrators understand why filters weren't displayed
4292 * as supported, we print a diagnostic message displaying how the input set
4293 * would change and warning to delete the preexisting filters if required.
4294 *
4295 * Returns 0 on successful input set match, and a negative return code on
4296 * failure.
4297 **/
4298static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4299 struct ethtool_rx_flow_spec *fsp,
4300 struct i40e_rx_flow_userdef *userdef)
4301{
4302 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4303 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4304 cpu_to_be32(0xffffffff)};
4305 struct ethtool_tcpip6_spec *tcp_ip6_spec;
4306 struct ethtool_usrip6_spec *usr_ip6_spec;
4307 struct ethtool_tcpip4_spec *tcp_ip4_spec;
4308 struct ethtool_usrip4_spec *usr_ip4_spec;
4309 struct i40e_pf *pf = vsi->back;
4310 u64 current_mask, new_mask;
4311 bool new_flex_offset = false;
4312 bool flex_l3 = false;
4313 u16 *fdir_filter_count;
4314 u16 index, src_offset = 0;
4315 u8 pit_index = 0;
4316 int err;
4317
4318 switch (fsp->flow_type & ~FLOW_EXT) {
4319 case SCTP_V4_FLOW:
4320 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4321 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4322 break;
4323 case TCP_V4_FLOW:
4324 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4325 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4326 break;
4327 case UDP_V4_FLOW:
4328 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4329 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4330 break;
4331 case SCTP_V6_FLOW:
4332 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4333 fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4334 break;
4335 case TCP_V6_FLOW:
4336 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4337 fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4338 break;
4339 case UDP_V6_FLOW:
4340 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4341 fdir_filter_count = &pf->fd_udp6_filter_cnt;
4342 break;
4343 case IP_USER_FLOW:
4344 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4345 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4346 flex_l3 = true;
4347 break;
4348 case IPV6_USER_FLOW:
4349 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4350 fdir_filter_count = &pf->fd_ip6_filter_cnt;
4351 flex_l3 = true;
4352 break;
4353 default:
4354 return -EOPNOTSUPP;
4355 }
4356
4357 /* Read the current input set from register memory. */
4358 current_mask = i40e_read_fd_input_set(pf, index);
4359 new_mask = current_mask;
4360
4361 /* Determine, if any, the required changes to the input set in order
4362 * to support the provided mask.
4363 *
4364 * Hardware only supports masking at word (2 byte) granularity and does
4365 * not support full bitwise masking. This implementation simplifies
4366 * even further and only supports fully enabled or fully disabled
4367 * masks for each field, even though we could split the ip4src and
4368 * ip4dst fields.
4369 */
4370 switch (fsp->flow_type & ~FLOW_EXT) {
4371 case SCTP_V4_FLOW:
4372 new_mask &= ~I40E_VERIFY_TAG_MASK;
4373 fallthrough;
4374 case TCP_V4_FLOW:
4375 case UDP_V4_FLOW:
4376 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4377
4378 /* IPv4 source address */
4379 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4380 new_mask |= I40E_L3_SRC_MASK;
4381 else if (!tcp_ip4_spec->ip4src)
4382 new_mask &= ~I40E_L3_SRC_MASK;
4383 else
4384 return -EOPNOTSUPP;
4385
4386 /* IPv4 destination address */
4387 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4388 new_mask |= I40E_L3_DST_MASK;
4389 else if (!tcp_ip4_spec->ip4dst)
4390 new_mask &= ~I40E_L3_DST_MASK;
4391 else
4392 return -EOPNOTSUPP;
4393
4394 /* L4 source port */
4395 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4396 new_mask |= I40E_L4_SRC_MASK;
4397 else if (!tcp_ip4_spec->psrc)
4398 new_mask &= ~I40E_L4_SRC_MASK;
4399 else
4400 return -EOPNOTSUPP;
4401
4402 /* L4 destination port */
4403 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4404 new_mask |= I40E_L4_DST_MASK;
4405 else if (!tcp_ip4_spec->pdst)
4406 new_mask &= ~I40E_L4_DST_MASK;
4407 else
4408 return -EOPNOTSUPP;
4409
4410 /* Filtering on Type of Service is not supported. */
4411 if (tcp_ip4_spec->tos)
4412 return -EOPNOTSUPP;
4413
4414 break;
4415 case SCTP_V6_FLOW:
4416 new_mask &= ~I40E_VERIFY_TAG_MASK;
4417 fallthrough;
4418 case TCP_V6_FLOW:
4419 case UDP_V6_FLOW:
4420 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4421
4422 /* Check if user provided IPv6 source address. */
4423 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4424 (struct in6_addr *)&ipv6_full_mask))
4425 new_mask |= I40E_L3_V6_SRC_MASK;
4426 else if (ipv6_addr_any((struct in6_addr *)
4427 &tcp_ip6_spec->ip6src))
4428 new_mask &= ~I40E_L3_V6_SRC_MASK;
4429 else
4430 return -EOPNOTSUPP;
4431
4432 /* Check if user provided destination address. */
4433 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4434 (struct in6_addr *)&ipv6_full_mask))
4435 new_mask |= I40E_L3_V6_DST_MASK;
4436 else if (ipv6_addr_any((struct in6_addr *)
4437 &tcp_ip6_spec->ip6dst))
4438 new_mask &= ~I40E_L3_V6_DST_MASK;
4439 else
4440 return -EOPNOTSUPP;
4441
4442 /* L4 source port */
4443 if (tcp_ip6_spec->psrc == htons(0xFFFF))
4444 new_mask |= I40E_L4_SRC_MASK;
4445 else if (!tcp_ip6_spec->psrc)
4446 new_mask &= ~I40E_L4_SRC_MASK;
4447 else
4448 return -EOPNOTSUPP;
4449
4450 /* L4 destination port */
4451 if (tcp_ip6_spec->pdst == htons(0xFFFF))
4452 new_mask |= I40E_L4_DST_MASK;
4453 else if (!tcp_ip6_spec->pdst)
4454 new_mask &= ~I40E_L4_DST_MASK;
4455 else
4456 return -EOPNOTSUPP;
4457
4458 /* Filtering on Traffic Classes is not supported. */
4459 if (tcp_ip6_spec->tclass)
4460 return -EOPNOTSUPP;
4461 break;
4462 case IP_USER_FLOW:
4463 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4464
4465 /* IPv4 source address */
4466 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4467 new_mask |= I40E_L3_SRC_MASK;
4468 else if (!usr_ip4_spec->ip4src)
4469 new_mask &= ~I40E_L3_SRC_MASK;
4470 else
4471 return -EOPNOTSUPP;
4472
4473 /* IPv4 destination address */
4474 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4475 new_mask |= I40E_L3_DST_MASK;
4476 else if (!usr_ip4_spec->ip4dst)
4477 new_mask &= ~I40E_L3_DST_MASK;
4478 else
4479 return -EOPNOTSUPP;
4480
4481 /* First 4 bytes of L4 header */
4482 if (usr_ip4_spec->l4_4_bytes)
4483 return -EOPNOTSUPP;
4484
4485 /* Filtering on Type of Service is not supported. */
4486 if (usr_ip4_spec->tos)
4487 return -EOPNOTSUPP;
4488
4489 /* Filtering on IP version is not supported */
4490 if (usr_ip4_spec->ip_ver)
4491 return -EINVAL;
4492
4493 /* Filtering on L4 protocol is not supported */
4494 if (usr_ip4_spec->proto)
4495 return -EINVAL;
4496
4497 break;
4498 case IPV6_USER_FLOW:
4499 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4500
4501 /* Check if user provided IPv6 source address. */
4502 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4503 (struct in6_addr *)&ipv6_full_mask))
4504 new_mask |= I40E_L3_V6_SRC_MASK;
4505 else if (ipv6_addr_any((struct in6_addr *)
4506 &usr_ip6_spec->ip6src))
4507 new_mask &= ~I40E_L3_V6_SRC_MASK;
4508 else
4509 return -EOPNOTSUPP;
4510
4511 /* Check if user provided destination address. */
4512 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4513 (struct in6_addr *)&ipv6_full_mask))
4514 new_mask |= I40E_L3_V6_DST_MASK;
4515 else if (ipv6_addr_any((struct in6_addr *)
4516 &usr_ip6_spec->ip6dst))
4517 new_mask &= ~I40E_L3_V6_DST_MASK;
4518 else
4519 return -EOPNOTSUPP;
4520
4521 if (usr_ip6_spec->l4_4_bytes)
4522 return -EOPNOTSUPP;
4523
4524 /* Filtering on Traffic class is not supported. */
4525 if (usr_ip6_spec->tclass)
4526 return -EOPNOTSUPP;
4527
4528 /* Filtering on L4 protocol is not supported */
4529 if (usr_ip6_spec->l4_proto)
4530 return -EINVAL;
4531
4532 break;
4533 default:
4534 return -EOPNOTSUPP;
4535 }
4536
4537 if (fsp->flow_type & FLOW_EXT) {
4538 /* Allow only 802.1Q and no etype defined, as
4539 * later it's modified to 0x8100
4540 */
4541 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4542 fsp->h_ext.vlan_etype != 0)
4543 return -EOPNOTSUPP;
4544 if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4545 new_mask |= I40E_VLAN_SRC_MASK;
4546 else
4547 new_mask &= ~I40E_VLAN_SRC_MASK;
4548 }
4549
4550 /* First, clear all flexible filter entries */
4551 new_mask &= ~I40E_FLEX_INPUT_MASK;
4552
4553 /* If we have a flexible filter, try to add this offset to the correct
4554 * flexible filter PIT list. Once finished, we can update the mask.
4555 * If the src_offset changed, we will get a new mask value which will
4556 * trigger an input set change.
4557 */
4558 if (userdef->flex_filter) {
4559 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4560
4561 /* Flexible offset must be even, since the flexible payload
4562 * must be aligned on 2-byte boundary.
4563 */
4564 if (userdef->flex_offset & 0x1) {
4565 dev_warn(&pf->pdev->dev,
4566 "Flexible data offset must be 2-byte aligned\n");
4567 return -EINVAL;
4568 }
4569
4570 src_offset = userdef->flex_offset >> 1;
4571
4572 /* FLX_PIT source offset value is only so large */
4573 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4574 dev_warn(&pf->pdev->dev,
4575 "Flexible data must reside within first 64 bytes of the packet payload\n");
4576 return -EINVAL;
4577 }
4578
4579 /* See if this offset has already been programmed. If we get
4580 * an ERR_PTR, then the filter is not safe to add. Otherwise,
4581 * if we get a NULL pointer, this means we will need to add
4582 * the offset.
4583 */
4584 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4585 src_offset);
4586 if (IS_ERR(flex_pit))
4587 return PTR_ERR(flex_pit);
4588
4589 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4590 * packet types, and thus we need to program both L3 and L4
4591 * flexible values. These must have identical flexible index,
4592 * as otherwise we can't correctly program the input set. So
4593 * we'll find both an L3 and L4 index and make sure they are
4594 * the same.
4595 */
4596 if (flex_l3) {
4597 l3_flex_pit =
4598 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4599 src_offset);
4600 if (IS_ERR(l3_flex_pit))
4601 return PTR_ERR(l3_flex_pit);
4602
4603 if (flex_pit) {
4604 /* If we already had a matching L4 entry, we
4605 * need to make sure that the L3 entry we
4606 * obtained uses the same index.
4607 */
4608 if (l3_flex_pit) {
4609 if (l3_flex_pit->pit_index !=
4610 flex_pit->pit_index) {
4611 return -EINVAL;
4612 }
4613 } else {
4614 new_flex_offset = true;
4615 }
4616 } else {
4617 flex_pit = l3_flex_pit;
4618 }
4619 }
4620
4621 /* If we didn't find an existing flex offset, we need to
4622 * program a new one. However, we don't immediately program it
4623 * here because we will wait to program until after we check
4624 * that it is safe to change the input set.
4625 */
4626 if (!flex_pit) {
4627 new_flex_offset = true;
4628 pit_index = i40e_unused_pit_index(pf);
4629 } else {
4630 pit_index = flex_pit->pit_index;
4631 }
4632
4633 /* Update the mask with the new offset */
4634 new_mask |= i40e_pit_index_to_mask(pit_index);
4635 }
4636
4637 /* If the mask and flexible filter offsets for this filter match the
4638 * currently programmed values we don't need any input set change, so
4639 * this filter is safe to install.
4640 */
4641 if (new_mask == current_mask && !new_flex_offset)
4642 return 0;
4643
4644 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4645 i40e_flow_str(fsp));
4646 i40e_print_input_set(vsi, current_mask, new_mask);
4647 if (new_flex_offset) {
4648 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4649 pit_index, src_offset);
4650 }
4651
4652 /* Hardware input sets are global across multiple ports, so even the
4653 * main port cannot change them when in MFP mode as this would impact
4654 * any filters on the other ports.
4655 */
4656 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
4657 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4658 return -EOPNOTSUPP;
4659 }
4660
4661 /* This filter requires us to update the input set. However, hardware
4662 * only supports one input set per flow type, and does not support
4663 * separate masks for each filter. This means that we can only support
4664 * a single mask for all filters of a specific type.
4665 *
4666 * If we have preexisting filters, they obviously depend on the
4667 * current programmed input set. Display a diagnostic message in this
4668 * case explaining why the filter could not be accepted.
4669 */
4670 if (*fdir_filter_count) {
4671 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4672 i40e_flow_str(fsp),
4673 *fdir_filter_count);
4674 return -EOPNOTSUPP;
4675 }
4676
4677 i40e_write_fd_input_set(pf, index, new_mask);
4678
4679 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4680 * frames. If we're programming the input set for IPv4/Other, we also
4681 * need to program the IPv4/Fragmented input set. Since we don't have
4682 * separate support, we'll always assume and enforce that the two flow
4683 * types must have matching input sets.
4684 */
4685 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4686 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4687 new_mask);
4688
4689 /* Add the new offset and update table, if necessary */
4690 if (new_flex_offset) {
4691 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4692 pit_index);
4693 if (err)
4694 return err;
4695
4696 if (flex_l3) {
4697 err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4698 src_offset,
4699 pit_index);
4700 if (err)
4701 return err;
4702 }
4703
4704 i40e_reprogram_flex_pit(pf);
4705 }
4706
4707 return 0;
4708}
4709
4710/**
4711 * i40e_match_fdir_filter - Return true of two filters match
4712 * @a: pointer to filter struct
4713 * @b: pointer to filter struct
4714 *
4715 * Returns true if the two filters match exactly the same criteria. I.e. they
4716 * match the same flow type and have the same parameters. We don't need to
4717 * check any input-set since all filters of the same flow type must use the
4718 * same input set.
4719 **/
4720static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4721 struct i40e_fdir_filter *b)
4722{
4723 /* The filters do not much if any of these criteria differ. */
4724 if (a->dst_ip != b->dst_ip ||
4725 a->src_ip != b->src_ip ||
4726 a->dst_port != b->dst_port ||
4727 a->src_port != b->src_port ||
4728 a->flow_type != b->flow_type ||
4729 a->ipl4_proto != b->ipl4_proto ||
4730 a->vlan_tag != b->vlan_tag ||
4731 a->vlan_etype != b->vlan_etype)
4732 return false;
4733
4734 return true;
4735}
4736
4737/**
4738 * i40e_disallow_matching_filters - Check that new filters differ
4739 * @vsi: pointer to the targeted VSI
4740 * @input: new filter to check
4741 *
4742 * Due to hardware limitations, it is not possible for two filters that match
4743 * similar criteria to be programmed at the same time. This is true for a few
4744 * reasons:
4745 *
4746 * (a) all filters matching a particular flow type must use the same input
4747 * set, that is they must match the same criteria.
4748 * (b) different flow types will never match the same packet, as the flow type
4749 * is decided by hardware before checking which rules apply.
4750 * (c) hardware has no way to distinguish which order filters apply in.
4751 *
4752 * Due to this, we can't really support using the location data to order
4753 * filters in the hardware parsing. It is technically possible for the user to
4754 * request two filters matching the same criteria but which select different
4755 * queues. In this case, rather than keep both filters in the list, we reject
4756 * the 2nd filter when the user requests adding it.
4757 *
4758 * This avoids needing to track location for programming the filter to
4759 * hardware, and ensures that we avoid some strange scenarios involving
4760 * deleting filters which match the same criteria.
4761 **/
4762static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4763 struct i40e_fdir_filter *input)
4764{
4765 struct i40e_pf *pf = vsi->back;
4766 struct i40e_fdir_filter *rule;
4767 struct hlist_node *node2;
4768
4769 /* Loop through every filter, and check that it doesn't match */
4770 hlist_for_each_entry_safe(rule, node2,
4771 &pf->fdir_filter_list, fdir_node) {
4772 /* Don't check the filters match if they share the same fd_id,
4773 * since the new filter is actually just updating the target
4774 * of the old filter.
4775 */
4776 if (rule->fd_id == input->fd_id)
4777 continue;
4778
4779 /* If any filters match, then print a warning message to the
4780 * kernel message buffer and bail out.
4781 */
4782 if (i40e_match_fdir_filter(rule, input)) {
4783 dev_warn(&pf->pdev->dev,
4784 "Existing user defined filter %d already matches this flow.\n",
4785 rule->fd_id);
4786 return -EINVAL;
4787 }
4788 }
4789
4790 return 0;
4791}
4792
4793/**
4794 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4795 * @vsi: pointer to the targeted VSI
4796 * @cmd: command to get or set RX flow classification rules
4797 *
4798 * Add Flow Director filters for a specific flow spec based on their
4799 * protocol. Returns 0 if the filters were successfully added.
4800 **/
4801static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4802 struct ethtool_rxnfc *cmd)
4803{
4804 struct i40e_rx_flow_userdef userdef;
4805 struct ethtool_rx_flow_spec *fsp;
4806 struct i40e_fdir_filter *input;
4807 u16 dest_vsi = 0, q_index = 0;
4808 struct i40e_pf *pf;
4809 int ret = -EINVAL;
4810 u8 dest_ctl;
4811
4812 if (!vsi)
4813 return -EINVAL;
4814 pf = vsi->back;
4815
4816 if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags))
4817 return -EOPNOTSUPP;
4818
4819 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4820 return -ENOSPC;
4821
4822 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4823 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4824 return -EBUSY;
4825
4826 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4827 return -EBUSY;
4828
4829 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4830
4831 /* Parse the user-defined field */
4832 if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4833 return -EINVAL;
4834
4835 /* Extended MAC field is not supported */
4836 if (fsp->flow_type & FLOW_MAC_EXT)
4837 return -EINVAL;
4838
4839 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4840 if (ret)
4841 return ret;
4842
4843 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4844 pf->hw.func_caps.fd_filters_guaranteed)) {
4845 return -EINVAL;
4846 }
4847
4848 /* ring_cookie is either the drop index, or is a mask of the queue
4849 * index and VF id we wish to target.
4850 */
4851 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4852 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4853 } else {
4854 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4855 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4856
4857 if (!vf) {
4858 if (ring >= vsi->num_queue_pairs)
4859 return -EINVAL;
4860 dest_vsi = vsi->id;
4861 } else {
4862 /* VFs are zero-indexed, so we subtract one here */
4863 vf--;
4864
4865 if (vf >= pf->num_alloc_vfs)
4866 return -EINVAL;
4867 if (ring >= pf->vf[vf].num_queue_pairs)
4868 return -EINVAL;
4869 dest_vsi = pf->vf[vf].lan_vsi_id;
4870 }
4871 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4872 q_index = ring;
4873 }
4874
4875 input = kzalloc(sizeof(*input), GFP_KERNEL);
4876
4877 if (!input)
4878 return -ENOMEM;
4879
4880 input->fd_id = fsp->location;
4881 input->q_index = q_index;
4882 input->dest_vsi = dest_vsi;
4883 input->dest_ctl = dest_ctl;
4884 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4885 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4886 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4887 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4888 input->flow_type = fsp->flow_type & ~FLOW_EXT;
4889
4890 input->vlan_etype = fsp->h_ext.vlan_etype;
4891 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4892 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4893 if (fsp->m_ext.vlan_tci && input->vlan_etype)
4894 input->vlan_tag = fsp->h_ext.vlan_tci;
4895 if (input->flow_type == IPV6_USER_FLOW ||
4896 input->flow_type == UDP_V6_FLOW ||
4897 input->flow_type == TCP_V6_FLOW ||
4898 input->flow_type == SCTP_V6_FLOW) {
4899 /* Reverse the src and dest notion, since the HW expects them
4900 * to be from Tx perspective where as the input from user is
4901 * from Rx filter view.
4902 */
4903 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4904 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4905 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4906 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4907 sizeof(__be32) * 4);
4908 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4909 sizeof(__be32) * 4);
4910 } else {
4911 /* Reverse the src and dest notion, since the HW expects them
4912 * to be from Tx perspective where as the input from user is
4913 * from Rx filter view.
4914 */
4915 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4916 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4917 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4918 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4919 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4920 }
4921
4922 if (userdef.flex_filter) {
4923 input->flex_filter = true;
4924 input->flex_word = cpu_to_be16(userdef.flex_word);
4925 input->flex_offset = userdef.flex_offset;
4926 }
4927
4928 /* Avoid programming two filters with identical match criteria. */
4929 ret = i40e_disallow_matching_filters(vsi, input);
4930 if (ret)
4931 goto free_filter_memory;
4932
4933 /* Add the input filter to the fdir_input_list, possibly replacing
4934 * a previous filter. Do not free the input structure after adding it
4935 * to the list as this would cause a use-after-free bug.
4936 */
4937 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4938 ret = i40e_add_del_fdir(vsi, input, true);
4939 if (ret)
4940 goto remove_sw_rule;
4941 return 0;
4942
4943remove_sw_rule:
4944 hlist_del(&input->fdir_node);
4945 pf->fdir_pf_active_filters--;
4946free_filter_memory:
4947 kfree(input);
4948 return ret;
4949}
4950
4951/**
4952 * i40e_set_rxnfc - command to set RX flow classification rules
4953 * @netdev: network interface device structure
4954 * @cmd: ethtool rxnfc command
4955 *
4956 * Returns Success if the command is supported.
4957 **/
4958static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4959{
4960 struct i40e_netdev_priv *np = netdev_priv(netdev);
4961 struct i40e_vsi *vsi = np->vsi;
4962 struct i40e_pf *pf = vsi->back;
4963 int ret = -EOPNOTSUPP;
4964
4965 switch (cmd->cmd) {
4966 case ETHTOOL_SRXFH:
4967 ret = i40e_set_rss_hash_opt(pf, cmd);
4968 break;
4969 case ETHTOOL_SRXCLSRLINS:
4970 ret = i40e_add_fdir_ethtool(vsi, cmd);
4971 break;
4972 case ETHTOOL_SRXCLSRLDEL:
4973 ret = i40e_del_fdir_entry(vsi, cmd);
4974 break;
4975 default:
4976 break;
4977 }
4978
4979 return ret;
4980}
4981
4982/**
4983 * i40e_max_channels - get Max number of combined channels supported
4984 * @vsi: vsi pointer
4985 **/
4986static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4987{
4988 /* TODO: This code assumes DCB and FD is disabled for now. */
4989 return vsi->alloc_queue_pairs;
4990}
4991
4992/**
4993 * i40e_get_channels - Get the current channels enabled and max supported etc.
4994 * @dev: network interface device structure
4995 * @ch: ethtool channels structure
4996 *
4997 * We don't support separate tx and rx queues as channels. The other count
4998 * represents how many queues are being used for control. max_combined counts
4999 * how many queue pairs we can support. They may not be mapped 1 to 1 with
5000 * q_vectors since we support a lot more queue pairs than q_vectors.
5001 **/
5002static void i40e_get_channels(struct net_device *dev,
5003 struct ethtool_channels *ch)
5004{
5005 struct i40e_netdev_priv *np = netdev_priv(dev);
5006 struct i40e_vsi *vsi = np->vsi;
5007 struct i40e_pf *pf = vsi->back;
5008
5009 /* report maximum channels */
5010 ch->max_combined = i40e_max_channels(vsi);
5011
5012 /* report info for other vector */
5013 ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0;
5014 ch->max_other = ch->other_count;
5015
5016 /* Note: This code assumes DCB is disabled for now. */
5017 ch->combined_count = vsi->num_queue_pairs;
5018}
5019
5020/**
5021 * i40e_set_channels - Set the new channels count.
5022 * @dev: network interface device structure
5023 * @ch: ethtool channels structure
5024 *
5025 * The new channels count may not be the same as requested by the user
5026 * since it gets rounded down to a power of 2 value.
5027 **/
5028static int i40e_set_channels(struct net_device *dev,
5029 struct ethtool_channels *ch)
5030{
5031 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
5032 struct i40e_netdev_priv *np = netdev_priv(dev);
5033 unsigned int count = ch->combined_count;
5034 struct i40e_vsi *vsi = np->vsi;
5035 struct i40e_pf *pf = vsi->back;
5036 struct i40e_fdir_filter *rule;
5037 struct hlist_node *node2;
5038 int new_count;
5039 int err = 0;
5040
5041 /* We do not support setting channels for any other VSI at present */
5042 if (vsi->type != I40E_VSI_MAIN)
5043 return -EINVAL;
5044
5045 /* We do not support setting channels via ethtool when TCs are
5046 * configured through mqprio
5047 */
5048 if (i40e_is_tc_mqprio_enabled(pf))
5049 return -EINVAL;
5050
5051 /* verify they are not requesting separate vectors */
5052 if (!count || ch->rx_count || ch->tx_count)
5053 return -EINVAL;
5054
5055 /* verify other_count has not changed */
5056 if (ch->other_count != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0))
5057 return -EINVAL;
5058
5059 /* verify the number of channels does not exceed hardware limits */
5060 if (count > i40e_max_channels(vsi))
5061 return -EINVAL;
5062
5063 /* verify that the number of channels does not invalidate any current
5064 * flow director rules
5065 */
5066 hlist_for_each_entry_safe(rule, node2,
5067 &pf->fdir_filter_list, fdir_node) {
5068 if (rule->dest_ctl != drop && count <= rule->q_index) {
5069 dev_warn(&pf->pdev->dev,
5070 "Existing user defined filter %d assigns flow to queue %d\n",
5071 rule->fd_id, rule->q_index);
5072 err = -EINVAL;
5073 }
5074 }
5075
5076 if (err) {
5077 dev_err(&pf->pdev->dev,
5078 "Existing filter rules must be deleted to reduce combined channel count to %d\n",
5079 count);
5080 return err;
5081 }
5082
5083 /* update feature limits from largest to smallest supported values */
5084 /* TODO: Flow director limit, DCB etc */
5085
5086 /* use rss_reconfig to rebuild with new queue count and update traffic
5087 * class queue mapping
5088 */
5089 new_count = i40e_reconfig_rss_queues(pf, count);
5090 if (new_count > 0)
5091 return 0;
5092 else
5093 return -EINVAL;
5094}
5095
5096/**
5097 * i40e_get_rxfh_key_size - get the RSS hash key size
5098 * @netdev: network interface device structure
5099 *
5100 * Returns the table size.
5101 **/
5102static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
5103{
5104 return I40E_HKEY_ARRAY_SIZE;
5105}
5106
5107/**
5108 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
5109 * @netdev: network interface device structure
5110 *
5111 * Returns the table size.
5112 **/
5113static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
5114{
5115 return I40E_HLUT_ARRAY_SIZE;
5116}
5117
5118/**
5119 * i40e_get_rxfh - get the rx flow hash indirection table
5120 * @netdev: network interface device structure
5121 * @rxfh: pointer to param struct (indir, key, hfunc)
5122 *
5123 * Reads the indirection table directly from the hardware. Returns 0 on
5124 * success.
5125 **/
5126static int i40e_get_rxfh(struct net_device *netdev,
5127 struct ethtool_rxfh_param *rxfh)
5128{
5129 struct i40e_netdev_priv *np = netdev_priv(netdev);
5130 struct i40e_vsi *vsi = np->vsi;
5131 u8 *lut, *seed = NULL;
5132 int ret;
5133 u16 i;
5134
5135 rxfh->hfunc = ETH_RSS_HASH_TOP;
5136
5137 if (!rxfh->indir)
5138 return 0;
5139
5140 seed = rxfh->key;
5141 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5142 if (!lut)
5143 return -ENOMEM;
5144 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
5145 if (ret)
5146 goto out;
5147 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5148 rxfh->indir[i] = (u32)(lut[i]);
5149
5150out:
5151 kfree(lut);
5152
5153 return ret;
5154}
5155
5156/**
5157 * i40e_set_rxfh - set the rx flow hash indirection table
5158 * @netdev: network interface device structure
5159 * @rxfh: pointer to param struct (indir, key, hfunc)
5160 * @extack: extended ACK from the Netlink message
5161 *
5162 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
5163 * returns 0 after programming the table.
5164 **/
5165static int i40e_set_rxfh(struct net_device *netdev,
5166 struct ethtool_rxfh_param *rxfh,
5167 struct netlink_ext_ack *extack)
5168{
5169 struct i40e_netdev_priv *np = netdev_priv(netdev);
5170 struct i40e_vsi *vsi = np->vsi;
5171 struct i40e_pf *pf = vsi->back;
5172 u8 *seed = NULL;
5173 u16 i;
5174
5175 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
5176 rxfh->hfunc != ETH_RSS_HASH_TOP)
5177 return -EOPNOTSUPP;
5178
5179 if (rxfh->key) {
5180 if (!vsi->rss_hkey_user) {
5181 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5182 GFP_KERNEL);
5183 if (!vsi->rss_hkey_user)
5184 return -ENOMEM;
5185 }
5186 memcpy(vsi->rss_hkey_user, rxfh->key, I40E_HKEY_ARRAY_SIZE);
5187 seed = vsi->rss_hkey_user;
5188 }
5189 if (!vsi->rss_lut_user) {
5190 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5191 if (!vsi->rss_lut_user)
5192 return -ENOMEM;
5193 }
5194
5195 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
5196 if (rxfh->indir)
5197 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5198 vsi->rss_lut_user[i] = (u8)(rxfh->indir[i]);
5199 else
5200 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5201 vsi->rss_size);
5202
5203 return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5204 I40E_HLUT_ARRAY_SIZE);
5205}
5206
5207/**
5208 * i40e_get_priv_flags - report device private flags
5209 * @dev: network interface device structure
5210 *
5211 * The get string set count and the string set should be matched for each
5212 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags
5213 * array.
5214 *
5215 * Returns a u32 bitmap of flags.
5216 **/
5217static u32 i40e_get_priv_flags(struct net_device *dev)
5218{
5219 struct i40e_netdev_priv *np = netdev_priv(dev);
5220 struct i40e_vsi *vsi = np->vsi;
5221 struct i40e_pf *pf = vsi->back;
5222 u32 i, j, ret_flags = 0;
5223
5224 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5225 const struct i40e_priv_flags *priv_flag;
5226
5227 priv_flag = &i40e_gstrings_priv_flags[i];
5228
5229 if (test_bit(priv_flag->bitno, pf->flags))
5230 ret_flags |= BIT(i);
5231 }
5232
5233 if (pf->hw.pf_id != 0)
5234 return ret_flags;
5235
5236 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5237 const struct i40e_priv_flags *priv_flag;
5238
5239 priv_flag = &i40e_gl_gstrings_priv_flags[j];
5240
5241 if (test_bit(priv_flag->bitno, pf->flags))
5242 ret_flags |= BIT(i + j);
5243 }
5244
5245 return ret_flags;
5246}
5247
5248/**
5249 * i40e_set_priv_flags - set private flags
5250 * @dev: network interface device structure
5251 * @flags: bit flags to be set
5252 **/
5253static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5254{
5255 DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS);
5256 DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS);
5257 DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS);
5258 struct i40e_netdev_priv *np = netdev_priv(dev);
5259 enum i40e_admin_queue_err adq_err;
5260 struct i40e_vsi *vsi = np->vsi;
5261 struct i40e_pf *pf = vsi->back;
5262 u32 reset_needed = 0;
5263 int status;
5264 u32 i, j;
5265
5266 bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS);
5267 bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS);
5268
5269 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5270 const struct i40e_priv_flags *priv_flag;
5271 bool new_val;
5272
5273 priv_flag = &i40e_gstrings_priv_flags[i];
5274 new_val = (flags & BIT(i)) ? true : false;
5275
5276 /* If this is a read-only flag, it can't be changed */
5277 if (priv_flag->read_only &&
5278 test_bit(priv_flag->bitno, orig_flags) != new_val)
5279 return -EOPNOTSUPP;
5280
5281 if (new_val)
5282 set_bit(priv_flag->bitno, new_flags);
5283 else
5284 clear_bit(priv_flag->bitno, new_flags);
5285 }
5286
5287 if (pf->hw.pf_id != 0)
5288 goto flags_complete;
5289
5290 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5291 const struct i40e_priv_flags *priv_flag;
5292 bool new_val;
5293
5294 priv_flag = &i40e_gl_gstrings_priv_flags[j];
5295 new_val = (flags & BIT(i + j)) ? true : false;
5296
5297 /* If this is a read-only flag, it can't be changed */
5298 if (priv_flag->read_only &&
5299 test_bit(priv_flag->bitno, orig_flags) != new_val)
5300 return -EOPNOTSUPP;
5301
5302 if (new_val)
5303 set_bit(priv_flag->bitno, new_flags);
5304 else
5305 clear_bit(priv_flag->bitno, new_flags);
5306 }
5307
5308flags_complete:
5309 bitmap_xor(changed_flags, pf->flags, orig_flags, I40E_PF_FLAGS_NBITS);
5310
5311 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags))
5312 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5313
5314 if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) ||
5315 test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) ||
5316 test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags))
5317 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5318
5319 /* Before we finalize any flag changes, we need to perform some
5320 * checks to ensure that the changes are supported and safe.
5321 */
5322
5323 /* ATR eviction is not supported on all devices */
5324 if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) &&
5325 !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps))
5326 return -EOPNOTSUPP;
5327
5328 /* If the driver detected FW LLDP was disabled on init, this flag could
5329 * be set, however we do not support _changing_ the flag:
5330 * - on XL710 if NPAR is enabled or FW API version < 1.7
5331 * - on X722 with FW API version < 1.6
5332 * There are situations where older FW versions/NPAR enabled PFs could
5333 * disable LLDP, however we _must_ not allow the user to enable/disable
5334 * LLDP with this flag on unsupported FW versions.
5335 */
5336 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) &&
5337 !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) {
5338 dev_warn(&pf->pdev->dev,
5339 "Device does not support changing FW LLDP\n");
5340 return -EOPNOTSUPP;
5341 }
5342
5343 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) &&
5344 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5345 pf->hw.device_id != I40E_DEV_ID_25G_B) {
5346 dev_warn(&pf->pdev->dev,
5347 "Device does not support changing FEC configuration\n");
5348 return -EOPNOTSUPP;
5349 }
5350
5351 if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) &&
5352 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5353 pf->hw.device_id != I40E_DEV_ID_25G_B &&
5354 pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5355 dev_warn(&pf->pdev->dev,
5356 "Device does not support changing FEC configuration\n");
5357 return -EOPNOTSUPP;
5358 }
5359
5360 /* Process any additional changes needed as a result of flag changes.
5361 * The changed_flags value reflects the list of bits that were
5362 * changed in the code above.
5363 */
5364
5365 /* Flush current ATR settings if ATR was disabled */
5366 if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) &&
5367 !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) {
5368 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5369 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5370 }
5371
5372 if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) {
5373 u16 sw_flags = 0, valid_flags = 0;
5374 int ret;
5375
5376 if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags))
5377 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5378 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5379 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5380 0, NULL);
5381 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5382 dev_info(&pf->pdev->dev,
5383 "couldn't set switch config bits, err %pe aq_err %s\n",
5384 ERR_PTR(ret),
5385 i40e_aq_str(&pf->hw,
5386 pf->hw.aq.asq_last_status));
5387 /* not a fatal problem, just keep going */
5388 }
5389 }
5390
5391 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) ||
5392 test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) {
5393 u8 fec_cfg = 0;
5394
5395 if (test_bit(I40E_FLAG_RS_FEC, new_flags) &&
5396 test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) {
5397 fec_cfg = I40E_AQ_SET_FEC_AUTO;
5398 } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) {
5399 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5400 I40E_AQ_SET_FEC_ABILITY_RS);
5401 } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) {
5402 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5403 I40E_AQ_SET_FEC_ABILITY_KR);
5404 }
5405 if (i40e_set_fec_cfg(dev, fec_cfg))
5406 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5407 }
5408
5409 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) &&
5410 test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) {
5411 dev_err(&pf->pdev->dev,
5412 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5413 return -EOPNOTSUPP;
5414 }
5415
5416 if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) &&
5417 pf->num_alloc_vfs) {
5418 dev_warn(&pf->pdev->dev,
5419 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n");
5420 return -EOPNOTSUPP;
5421 }
5422
5423 if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) &&
5424 I40E_2K_TOO_SMALL_WITH_PADDING) {
5425 dev_warn(&pf->pdev->dev,
5426 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n");
5427 return -EOPNOTSUPP;
5428 }
5429
5430 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) &&
5431 test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) &&
5432 test_bit(I40E_FLAG_MFP_ENA, new_flags))
5433 dev_warn(&pf->pdev->dev,
5434 "Turning on link-down-on-close flag may affect other partitions\n");
5435
5436 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) {
5437 if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) {
5438#ifdef CONFIG_I40E_DCB
5439 i40e_dcb_sw_default_config(pf);
5440#endif /* CONFIG_I40E_DCB */
5441 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5442 i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5443 } else {
5444 status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5445 if (status) {
5446 adq_err = pf->hw.aq.asq_last_status;
5447 switch (adq_err) {
5448 case I40E_AQ_RC_EEXIST:
5449 dev_warn(&pf->pdev->dev,
5450 "FW LLDP agent is already running\n");
5451 reset_needed = 0;
5452 break;
5453 case I40E_AQ_RC_EPERM:
5454 dev_warn(&pf->pdev->dev,
5455 "Device configuration forbids SW from starting the LLDP agent.\n");
5456 return -EINVAL;
5457 case I40E_AQ_RC_EAGAIN:
5458 dev_warn(&pf->pdev->dev,
5459 "Stop FW LLDP agent command is still being processed, please try again in a second.\n");
5460 return -EBUSY;
5461 default:
5462 dev_warn(&pf->pdev->dev,
5463 "Starting FW LLDP agent failed: error: %pe, %s\n",
5464 ERR_PTR(status),
5465 i40e_aq_str(&pf->hw,
5466 adq_err));
5467 return -EINVAL;
5468 }
5469 }
5470 }
5471 }
5472
5473 /* Now that we've checked to ensure that the new flags are valid, load
5474 * them into place. Since we only modify flags either (a) during
5475 * initialization or (b) while holding the RTNL lock, we don't need
5476 * anything fancy here.
5477 */
5478 bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS);
5479
5480 /* Issue reset to cause things to take effect, as additional bits
5481 * are added we will need to create a mask of bits requiring reset
5482 */
5483 if (reset_needed)
5484 i40e_do_reset(pf, reset_needed, true);
5485
5486 return 0;
5487}
5488
5489/**
5490 * i40e_get_module_info - get (Q)SFP+ module type info
5491 * @netdev: network interface device structure
5492 * @modinfo: module EEPROM size and layout information structure
5493 **/
5494static int i40e_get_module_info(struct net_device *netdev,
5495 struct ethtool_modinfo *modinfo)
5496{
5497 struct i40e_netdev_priv *np = netdev_priv(netdev);
5498 struct i40e_vsi *vsi = np->vsi;
5499 struct i40e_pf *pf = vsi->back;
5500 struct i40e_hw *hw = &pf->hw;
5501 u32 sff8472_comp = 0;
5502 u32 sff8472_swap = 0;
5503 u32 sff8636_rev = 0;
5504 u32 type = 0;
5505 int status;
5506
5507 /* Check if firmware supports reading module EEPROM. */
5508 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) {
5509 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5510 return -EINVAL;
5511 }
5512
5513 status = i40e_update_link_info(hw);
5514 if (status)
5515 return -EIO;
5516
5517 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5518 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5519 return -EINVAL;
5520 }
5521
5522 type = hw->phy.link_info.module_type[0];
5523
5524 switch (type) {
5525 case I40E_MODULE_TYPE_SFP:
5526 status = i40e_aq_get_phy_register(hw,
5527 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5528 I40E_I2C_EEPROM_DEV_ADDR, true,
5529 I40E_MODULE_SFF_8472_COMP,
5530 &sff8472_comp, NULL);
5531 if (status)
5532 return -EIO;
5533
5534 status = i40e_aq_get_phy_register(hw,
5535 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5536 I40E_I2C_EEPROM_DEV_ADDR, true,
5537 I40E_MODULE_SFF_8472_SWAP,
5538 &sff8472_swap, NULL);
5539 if (status)
5540 return -EIO;
5541
5542 /* Check if the module requires address swap to access
5543 * the other EEPROM memory page.
5544 */
5545 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5546 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5547 modinfo->type = ETH_MODULE_SFF_8079;
5548 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5549 } else if (sff8472_comp == 0x00) {
5550 /* Module is not SFF-8472 compliant */
5551 modinfo->type = ETH_MODULE_SFF_8079;
5552 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5553 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5554 /* Module is SFF-8472 compliant but doesn't implement
5555 * Digital Diagnostic Monitoring (DDM).
5556 */
5557 modinfo->type = ETH_MODULE_SFF_8079;
5558 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5559 } else {
5560 modinfo->type = ETH_MODULE_SFF_8472;
5561 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5562 }
5563 break;
5564 case I40E_MODULE_TYPE_QSFP_PLUS:
5565 /* Read from memory page 0. */
5566 status = i40e_aq_get_phy_register(hw,
5567 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5568 0, true,
5569 I40E_MODULE_REVISION_ADDR,
5570 &sff8636_rev, NULL);
5571 if (status)
5572 return -EIO;
5573 /* Determine revision compliance byte */
5574 if (sff8636_rev > 0x02) {
5575 /* Module is SFF-8636 compliant */
5576 modinfo->type = ETH_MODULE_SFF_8636;
5577 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5578 } else {
5579 modinfo->type = ETH_MODULE_SFF_8436;
5580 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5581 }
5582 break;
5583 case I40E_MODULE_TYPE_QSFP28:
5584 modinfo->type = ETH_MODULE_SFF_8636;
5585 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5586 break;
5587 default:
5588 netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n");
5589 return -EOPNOTSUPP;
5590 }
5591 return 0;
5592}
5593
5594/**
5595 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5596 * @netdev: network interface device structure
5597 * @ee: EEPROM dump request structure
5598 * @data: buffer to be filled with EEPROM contents
5599 **/
5600static int i40e_get_module_eeprom(struct net_device *netdev,
5601 struct ethtool_eeprom *ee,
5602 u8 *data)
5603{
5604 struct i40e_netdev_priv *np = netdev_priv(netdev);
5605 struct i40e_vsi *vsi = np->vsi;
5606 struct i40e_pf *pf = vsi->back;
5607 struct i40e_hw *hw = &pf->hw;
5608 bool is_sfp = false;
5609 u32 value = 0;
5610 int status;
5611 int i;
5612
5613 if (!ee || !ee->len || !data)
5614 return -EINVAL;
5615
5616 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5617 is_sfp = true;
5618
5619 for (i = 0; i < ee->len; i++) {
5620 u32 offset = i + ee->offset;
5621 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5622
5623 /* Check if we need to access the other memory page */
5624 if (is_sfp) {
5625 if (offset >= ETH_MODULE_SFF_8079_LEN) {
5626 offset -= ETH_MODULE_SFF_8079_LEN;
5627 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5628 }
5629 } else {
5630 while (offset >= ETH_MODULE_SFF_8436_LEN) {
5631 /* Compute memory page number and offset. */
5632 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5633 addr++;
5634 }
5635 }
5636
5637 status = i40e_aq_get_phy_register(hw,
5638 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5639 addr, true, offset, &value, NULL);
5640 if (status)
5641 return -EIO;
5642 data[i] = value;
5643 }
5644 return 0;
5645}
5646
5647static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5648{
5649 struct i40e_netdev_priv *np = netdev_priv(netdev);
5650 struct i40e_aq_get_phy_abilities_resp phy_cfg;
5651 struct i40e_vsi *vsi = np->vsi;
5652 struct i40e_pf *pf = vsi->back;
5653 struct i40e_hw *hw = &pf->hw;
5654 int status = 0;
5655
5656 /* Get initial PHY capabilities */
5657 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5658 if (status)
5659 return -EAGAIN;
5660
5661 /* Check whether NIC configuration is compatible with Energy Efficient
5662 * Ethernet (EEE) mode.
5663 */
5664 if (phy_cfg.eee_capability == 0)
5665 return -EOPNOTSUPP;
5666
5667 edata->supported = SUPPORTED_Autoneg;
5668 edata->lp_advertised = edata->supported;
5669
5670 /* Get current configuration */
5671 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5672 if (status)
5673 return -EAGAIN;
5674
5675 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U;
5676 edata->eee_enabled = !!edata->advertised;
5677 edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5678
5679 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5680
5681 return 0;
5682}
5683
5684static int i40e_is_eee_param_supported(struct net_device *netdev,
5685 struct ethtool_eee *edata)
5686{
5687 struct i40e_netdev_priv *np = netdev_priv(netdev);
5688 struct i40e_vsi *vsi = np->vsi;
5689 struct i40e_pf *pf = vsi->back;
5690 struct i40e_ethtool_not_used {
5691 u32 value;
5692 const char *name;
5693 } param[] = {
5694 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"},
5695 {edata->tx_lpi_timer, "tx-timer"},
5696 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5697 };
5698 int i;
5699
5700 for (i = 0; i < ARRAY_SIZE(param); i++) {
5701 if (param[i].value) {
5702 netdev_info(netdev,
5703 "EEE setting %s not supported\n",
5704 param[i].name);
5705 return -EOPNOTSUPP;
5706 }
5707 }
5708
5709 return 0;
5710}
5711
5712static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5713{
5714 struct i40e_netdev_priv *np = netdev_priv(netdev);
5715 struct i40e_aq_get_phy_abilities_resp abilities;
5716 struct i40e_aq_set_phy_config config;
5717 struct i40e_vsi *vsi = np->vsi;
5718 struct i40e_pf *pf = vsi->back;
5719 struct i40e_hw *hw = &pf->hw;
5720 __le16 eee_capability;
5721 int status = 0;
5722
5723 /* Deny parameters we don't support */
5724 if (i40e_is_eee_param_supported(netdev, edata))
5725 return -EOPNOTSUPP;
5726
5727 /* Get initial PHY capabilities */
5728 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5729 NULL);
5730 if (status)
5731 return -EAGAIN;
5732
5733 /* Check whether NIC configuration is compatible with Energy Efficient
5734 * Ethernet (EEE) mode.
5735 */
5736 if (abilities.eee_capability == 0)
5737 return -EOPNOTSUPP;
5738
5739 /* Cache initial EEE capability */
5740 eee_capability = abilities.eee_capability;
5741
5742 /* Get current PHY configuration */
5743 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5744 NULL);
5745 if (status)
5746 return -EAGAIN;
5747
5748 /* Cache current PHY configuration */
5749 config.phy_type = abilities.phy_type;
5750 config.phy_type_ext = abilities.phy_type_ext;
5751 config.link_speed = abilities.link_speed;
5752 config.abilities = abilities.abilities |
5753 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5754 config.eeer = abilities.eeer_val;
5755 config.low_power_ctrl = abilities.d3_lpan;
5756 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5757 I40E_AQ_PHY_FEC_CONFIG_MASK;
5758
5759 /* Set desired EEE state */
5760 if (edata->eee_enabled) {
5761 config.eee_capability = eee_capability;
5762 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5763 } else {
5764 config.eee_capability = 0;
5765 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5766 }
5767
5768 /* Apply modified PHY configuration */
5769 status = i40e_aq_set_phy_config(hw, &config, NULL);
5770 if (status)
5771 return -EAGAIN;
5772
5773 return 0;
5774}
5775
5776static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5777 .get_drvinfo = i40e_get_drvinfo,
5778 .set_eeprom = i40e_set_eeprom,
5779 .get_eeprom_len = i40e_get_eeprom_len,
5780 .get_eeprom = i40e_get_eeprom,
5781};
5782
5783static const struct ethtool_ops i40e_ethtool_ops = {
5784 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5785 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ |
5786 ETHTOOL_COALESCE_USE_ADAPTIVE |
5787 ETHTOOL_COALESCE_RX_USECS_HIGH |
5788 ETHTOOL_COALESCE_TX_USECS_HIGH,
5789 .get_drvinfo = i40e_get_drvinfo,
5790 .get_regs_len = i40e_get_regs_len,
5791 .get_regs = i40e_get_regs,
5792 .nway_reset = i40e_nway_reset,
5793 .get_link = ethtool_op_get_link,
5794 .get_wol = i40e_get_wol,
5795 .set_wol = i40e_set_wol,
5796 .set_eeprom = i40e_set_eeprom,
5797 .get_eeprom_len = i40e_get_eeprom_len,
5798 .get_eeprom = i40e_get_eeprom,
5799 .get_ringparam = i40e_get_ringparam,
5800 .set_ringparam = i40e_set_ringparam,
5801 .get_pauseparam = i40e_get_pauseparam,
5802 .set_pauseparam = i40e_set_pauseparam,
5803 .get_msglevel = i40e_get_msglevel,
5804 .set_msglevel = i40e_set_msglevel,
5805 .get_rxnfc = i40e_get_rxnfc,
5806 .set_rxnfc = i40e_set_rxnfc,
5807 .self_test = i40e_diag_test,
5808 .get_strings = i40e_get_strings,
5809 .get_eee = i40e_get_eee,
5810 .set_eee = i40e_set_eee,
5811 .set_phys_id = i40e_set_phys_id,
5812 .get_sset_count = i40e_get_sset_count,
5813 .get_ethtool_stats = i40e_get_ethtool_stats,
5814 .get_coalesce = i40e_get_coalesce,
5815 .set_coalesce = i40e_set_coalesce,
5816 .get_rxfh_key_size = i40e_get_rxfh_key_size,
5817 .get_rxfh_indir_size = i40e_get_rxfh_indir_size,
5818 .get_rxfh = i40e_get_rxfh,
5819 .set_rxfh = i40e_set_rxfh,
5820 .get_channels = i40e_get_channels,
5821 .set_channels = i40e_set_channels,
5822 .get_module_info = i40e_get_module_info,
5823 .get_module_eeprom = i40e_get_module_eeprom,
5824 .get_ts_info = i40e_get_ts_info,
5825 .get_priv_flags = i40e_get_priv_flags,
5826 .set_priv_flags = i40e_set_priv_flags,
5827 .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5828 .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5829 .get_link_ksettings = i40e_get_link_ksettings,
5830 .set_link_ksettings = i40e_set_link_ksettings,
5831 .get_fecparam = i40e_get_fec_param,
5832 .set_fecparam = i40e_set_fec_param,
5833 .flash_device = i40e_ddp_flash,
5834};
5835
5836void i40e_set_ethtool_ops(struct net_device *netdev)
5837{
5838 struct i40e_netdev_priv *np = netdev_priv(netdev);
5839 struct i40e_pf *pf = np->vsi->back;
5840
5841 if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5842 netdev->ethtool_ops = &i40e_ethtool_ops;
5843 else
5844 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5845}
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4/* ethtool support for i40e */
5
6#include "i40e.h"
7#include "i40e_diag.h"
8#include "i40e_txrx_common.h"
9
10/* ethtool statistics helpers */
11
12/**
13 * struct i40e_stats - definition for an ethtool statistic
14 * @stat_string: statistic name to display in ethtool -S output
15 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
16 * @stat_offset: offsetof() the stat from a base pointer
17 *
18 * This structure defines a statistic to be added to the ethtool stats buffer.
19 * It defines a statistic as offset from a common base pointer. Stats should
20 * be defined in constant arrays using the I40E_STAT macro, with every element
21 * of the array using the same _type for calculating the sizeof_stat and
22 * stat_offset.
23 *
24 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
25 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
26 * the i40e_add_ethtool_stat() helper function.
27 *
28 * The @stat_string is interpreted as a format string, allowing formatted
29 * values to be inserted while looping over multiple structures for a given
30 * statistics array. Thus, every statistic string in an array should have the
31 * same type and number of format specifiers, to be formatted by variadic
32 * arguments to the i40e_add_stat_string() helper function.
33 **/
34struct i40e_stats {
35 char stat_string[ETH_GSTRING_LEN];
36 int sizeof_stat;
37 int stat_offset;
38};
39
40/* Helper macro to define an i40e_stat structure with proper size and type.
41 * Use this when defining constant statistics arrays. Note that @_type expects
42 * only a type name and is used multiple times.
43 */
44#define I40E_STAT(_type, _name, _stat) { \
45 .stat_string = _name, \
46 .sizeof_stat = sizeof_field(_type, _stat), \
47 .stat_offset = offsetof(_type, _stat) \
48}
49
50/* Helper macro for defining some statistics directly copied from the netdev
51 * stats structure.
52 */
53#define I40E_NETDEV_STAT(_net_stat) \
54 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
55
56/* Helper macro for defining some statistics related to queues */
57#define I40E_QUEUE_STAT(_name, _stat) \
58 I40E_STAT(struct i40e_ring, _name, _stat)
59
60/* Stats associated with a Tx or Rx ring */
61static const struct i40e_stats i40e_gstrings_queue_stats[] = {
62 I40E_QUEUE_STAT("%s-%u.packets", stats.packets),
63 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes),
64};
65
66/**
67 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
68 * @data: location to store the stat value
69 * @pointer: basis for where to copy from
70 * @stat: the stat definition
71 *
72 * Copies the stat data defined by the pointer and stat structure pair into
73 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and
74 * i40e_add_queue_stats. If the pointer is null, data will be zero'd.
75 */
76static void
77i40e_add_one_ethtool_stat(u64 *data, void *pointer,
78 const struct i40e_stats *stat)
79{
80 char *p;
81
82 if (!pointer) {
83 /* ensure that the ethtool data buffer is zero'd for any stats
84 * which don't have a valid pointer.
85 */
86 *data = 0;
87 return;
88 }
89
90 p = (char *)pointer + stat->stat_offset;
91 switch (stat->sizeof_stat) {
92 case sizeof(u64):
93 *data = *((u64 *)p);
94 break;
95 case sizeof(u32):
96 *data = *((u32 *)p);
97 break;
98 case sizeof(u16):
99 *data = *((u16 *)p);
100 break;
101 case sizeof(u8):
102 *data = *((u8 *)p);
103 break;
104 default:
105 WARN_ONCE(1, "unexpected stat size for %s",
106 stat->stat_string);
107 *data = 0;
108 }
109}
110
111/**
112 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
113 * @data: ethtool stats buffer
114 * @pointer: location to copy stats from
115 * @stats: array of stats to copy
116 * @size: the size of the stats definition
117 *
118 * Copy the stats defined by the stats array using the pointer as a base into
119 * the data buffer supplied by ethtool. Updates the data pointer to point to
120 * the next empty location for successive calls to __i40e_add_ethtool_stats.
121 * If pointer is null, set the data values to zero and update the pointer to
122 * skip these stats.
123 **/
124static void
125__i40e_add_ethtool_stats(u64 **data, void *pointer,
126 const struct i40e_stats stats[],
127 const unsigned int size)
128{
129 unsigned int i;
130
131 for (i = 0; i < size; i++)
132 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
133}
134
135/**
136 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
137 * @data: ethtool stats buffer
138 * @pointer: location where stats are stored
139 * @stats: static const array of stat definitions
140 *
141 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
142 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
143 * ensuring that we pass the size associated with the given stats array.
144 *
145 * The parameter @stats is evaluated twice, so parameters with side effects
146 * should be avoided.
147 **/
148#define i40e_add_ethtool_stats(data, pointer, stats) \
149 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
150
151/**
152 * i40e_add_queue_stats - copy queue statistics into supplied buffer
153 * @data: ethtool stats buffer
154 * @ring: the ring to copy
155 *
156 * Queue statistics must be copied while protected by
157 * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats.
158 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
159 * ring pointer is null, zero out the queue stat values and update the data
160 * pointer. Otherwise safely copy the stats from the ring into the supplied
161 * buffer and update the data pointer when finished.
162 *
163 * This function expects to be called while under rcu_read_lock().
164 **/
165static void
166i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
167{
168 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
169 const struct i40e_stats *stats = i40e_gstrings_queue_stats;
170 unsigned int start;
171 unsigned int i;
172
173 /* To avoid invalid statistics values, ensure that we keep retrying
174 * the copy until we get a consistent value according to
175 * u64_stats_fetch_retry_irq. But first, make sure our ring is
176 * non-null before attempting to access its syncp.
177 */
178 do {
179 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp);
180 for (i = 0; i < size; i++) {
181 i40e_add_one_ethtool_stat(&(*data)[i], ring,
182 &stats[i]);
183 }
184 } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start));
185
186 /* Once we successfully copy the stats in, update the data pointer */
187 *data += size;
188}
189
190/**
191 * __i40e_add_stat_strings - copy stat strings into ethtool buffer
192 * @p: ethtool supplied buffer
193 * @stats: stat definitions array
194 * @size: size of the stats array
195 *
196 * Format and copy the strings described by stats into the buffer pointed at
197 * by p.
198 **/
199static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
200 const unsigned int size, ...)
201{
202 unsigned int i;
203
204 for (i = 0; i < size; i++) {
205 va_list args;
206
207 va_start(args, size);
208 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
209 *p += ETH_GSTRING_LEN;
210 va_end(args);
211 }
212}
213
214/**
215 * 40e_add_stat_strings - copy stat strings into ethtool buffer
216 * @p: ethtool supplied buffer
217 * @stats: stat definitions array
218 *
219 * Format and copy the strings described by the const static stats value into
220 * the buffer pointed at by p.
221 *
222 * The parameter @stats is evaluated twice, so parameters with side effects
223 * should be avoided. Additionally, stats must be an array such that
224 * ARRAY_SIZE can be called on it.
225 **/
226#define i40e_add_stat_strings(p, stats, ...) \
227 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
228
229#define I40E_PF_STAT(_name, _stat) \
230 I40E_STAT(struct i40e_pf, _name, _stat)
231#define I40E_VSI_STAT(_name, _stat) \
232 I40E_STAT(struct i40e_vsi, _name, _stat)
233#define I40E_VEB_STAT(_name, _stat) \
234 I40E_STAT(struct i40e_veb, _name, _stat)
235#define I40E_PFC_STAT(_name, _stat) \
236 I40E_STAT(struct i40e_pfc_stats, _name, _stat)
237#define I40E_QUEUE_STAT(_name, _stat) \
238 I40E_STAT(struct i40e_ring, _name, _stat)
239
240static const struct i40e_stats i40e_gstrings_net_stats[] = {
241 I40E_NETDEV_STAT(rx_packets),
242 I40E_NETDEV_STAT(tx_packets),
243 I40E_NETDEV_STAT(rx_bytes),
244 I40E_NETDEV_STAT(tx_bytes),
245 I40E_NETDEV_STAT(rx_errors),
246 I40E_NETDEV_STAT(tx_errors),
247 I40E_NETDEV_STAT(rx_dropped),
248 I40E_NETDEV_STAT(tx_dropped),
249 I40E_NETDEV_STAT(collisions),
250 I40E_NETDEV_STAT(rx_length_errors),
251 I40E_NETDEV_STAT(rx_crc_errors),
252};
253
254static const struct i40e_stats i40e_gstrings_veb_stats[] = {
255 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
256 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
257 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
258 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
259 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
260 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
261 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
262 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
263 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
264 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
265 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
266 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
267};
268
269static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
270 I40E_VEB_STAT("veb.tc_%u_tx_packets", tc_stats.tc_tx_packets),
271 I40E_VEB_STAT("veb.tc_%u_tx_bytes", tc_stats.tc_tx_bytes),
272 I40E_VEB_STAT("veb.tc_%u_rx_packets", tc_stats.tc_rx_packets),
273 I40E_VEB_STAT("veb.tc_%u_rx_bytes", tc_stats.tc_rx_bytes),
274};
275
276static const struct i40e_stats i40e_gstrings_misc_stats[] = {
277 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
278 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
279 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
280 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
281 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
282 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
283 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
284 I40E_VSI_STAT("tx_linearize", tx_linearize),
285 I40E_VSI_STAT("tx_force_wb", tx_force_wb),
286 I40E_VSI_STAT("tx_busy", tx_busy),
287 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
288 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
289};
290
291/* These PF_STATs might look like duplicates of some NETDEV_STATs,
292 * but they are separate. This device supports Virtualization, and
293 * as such might have several netdevs supporting VMDq and FCoE going
294 * through a single port. The NETDEV_STATs are for individual netdevs
295 * seen at the top of the stack, and the PF_STATs are for the physical
296 * function at the bottom of the stack hosting those netdevs.
297 *
298 * The PF_STATs are appended to the netdev stats only when ethtool -S
299 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
300 */
301static const struct i40e_stats i40e_gstrings_stats[] = {
302 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
303 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
304 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
305 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
306 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
307 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
308 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
309 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
310 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
311 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
312 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
313 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
314 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
315 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
316 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
317 I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
318 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
319 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
320 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
321 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
322 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
323 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
324 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
325 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
326 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
327 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
328 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
329 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
330 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
331 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
332 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
333 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
334 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
335 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
336 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
337 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
338 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
339 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
340 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
341 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
342 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
343 I40E_PF_STAT("port.arq_overflows", arq_overflows),
344 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
345 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
346 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
347 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
348 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
349 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
350 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
351 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
352 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
353
354 /* LPI stats */
355 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
356 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
357 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
358 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
359};
360
361struct i40e_pfc_stats {
362 u64 priority_xon_rx;
363 u64 priority_xoff_rx;
364 u64 priority_xon_tx;
365 u64 priority_xoff_tx;
366 u64 priority_xon_2_xoff;
367};
368
369static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
370 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
371 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
372 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
373 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
374 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
375};
376
377#define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats)
378
379#define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats)
380
381#define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
382
383#define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
384 I40E_MAX_USER_PRIORITY)
385
386#define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
387 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
388 I40E_MAX_TRAFFIC_CLASS))
389
390#define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats)
391
392#define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \
393 I40E_PFC_STATS_LEN + \
394 I40E_VEB_STATS_LEN + \
395 I40E_VSI_STATS_LEN)
396
397/* Length of stats for a single queue */
398#define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats)
399
400enum i40e_ethtool_test_id {
401 I40E_ETH_TEST_REG = 0,
402 I40E_ETH_TEST_EEPROM,
403 I40E_ETH_TEST_INTR,
404 I40E_ETH_TEST_LINK,
405};
406
407static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
408 "Register test (offline)",
409 "Eeprom test (offline)",
410 "Interrupt test (offline)",
411 "Link test (on/offline)"
412};
413
414#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
415
416struct i40e_priv_flags {
417 char flag_string[ETH_GSTRING_LEN];
418 u64 flag;
419 bool read_only;
420};
421
422#define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
423 .flag_string = _name, \
424 .flag = _flag, \
425 .read_only = _read_only, \
426}
427
428static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
429 /* NOTE: MFP setting cannot be changed */
430 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
431 I40E_PRIV_FLAG("total-port-shutdown",
432 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1),
433 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
434 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
435 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
436 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
437 I40E_PRIV_FLAG("link-down-on-close",
438 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
439 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
440 I40E_PRIV_FLAG("disable-source-pruning",
441 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
442 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
443 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
444 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
445};
446
447#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
448
449/* Private flags with a global effect, restricted to PF 0 */
450static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
451 I40E_PRIV_FLAG("vf-true-promisc-support",
452 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
453};
454
455#define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
456
457/**
458 * i40e_partition_setting_complaint - generic complaint for MFP restriction
459 * @pf: the PF struct
460 **/
461static void i40e_partition_setting_complaint(struct i40e_pf *pf)
462{
463 dev_info(&pf->pdev->dev,
464 "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");
465}
466
467/**
468 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
469 * @pf: PF struct with phy_types
470 * @ks: ethtool link ksettings struct to fill out
471 *
472 **/
473static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
474 struct ethtool_link_ksettings *ks)
475{
476 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
477 u64 phy_types = pf->hw.phy.phy_types;
478
479 ethtool_link_ksettings_zero_link_mode(ks, supported);
480 ethtool_link_ksettings_zero_link_mode(ks, advertising);
481
482 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
483 ethtool_link_ksettings_add_link_mode(ks, supported,
484 1000baseT_Full);
485 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
486 ethtool_link_ksettings_add_link_mode(ks, advertising,
487 1000baseT_Full);
488 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
489 ethtool_link_ksettings_add_link_mode(ks, supported,
490 100baseT_Full);
491 ethtool_link_ksettings_add_link_mode(ks, advertising,
492 100baseT_Full);
493 }
494 }
495 if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
496 phy_types & I40E_CAP_PHY_TYPE_XFI ||
497 phy_types & I40E_CAP_PHY_TYPE_SFI ||
498 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
499 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
500 ethtool_link_ksettings_add_link_mode(ks, supported,
501 10000baseT_Full);
502 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
503 ethtool_link_ksettings_add_link_mode(ks, advertising,
504 10000baseT_Full);
505 }
506 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
507 ethtool_link_ksettings_add_link_mode(ks, supported,
508 10000baseT_Full);
509 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
510 ethtool_link_ksettings_add_link_mode(ks, advertising,
511 10000baseT_Full);
512 }
513 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
514 ethtool_link_ksettings_add_link_mode(ks, supported,
515 2500baseT_Full);
516 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
517 ethtool_link_ksettings_add_link_mode(ks, advertising,
518 2500baseT_Full);
519 }
520 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
521 ethtool_link_ksettings_add_link_mode(ks, supported,
522 5000baseT_Full);
523 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
524 ethtool_link_ksettings_add_link_mode(ks, advertising,
525 5000baseT_Full);
526 }
527 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
528 phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
529 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
530 ethtool_link_ksettings_add_link_mode(ks, supported,
531 40000baseCR4_Full);
532 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
533 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
534 ethtool_link_ksettings_add_link_mode(ks, supported,
535 40000baseCR4_Full);
536 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
537 ethtool_link_ksettings_add_link_mode(ks, advertising,
538 40000baseCR4_Full);
539 }
540 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
541 ethtool_link_ksettings_add_link_mode(ks, supported,
542 100baseT_Full);
543 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
544 ethtool_link_ksettings_add_link_mode(ks, advertising,
545 100baseT_Full);
546 }
547 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
548 ethtool_link_ksettings_add_link_mode(ks, supported,
549 1000baseT_Full);
550 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
551 ethtool_link_ksettings_add_link_mode(ks, advertising,
552 1000baseT_Full);
553 }
554 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
555 ethtool_link_ksettings_add_link_mode(ks, supported,
556 40000baseSR4_Full);
557 ethtool_link_ksettings_add_link_mode(ks, advertising,
558 40000baseSR4_Full);
559 }
560 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
561 ethtool_link_ksettings_add_link_mode(ks, supported,
562 40000baseLR4_Full);
563 ethtool_link_ksettings_add_link_mode(ks, advertising,
564 40000baseLR4_Full);
565 }
566 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
567 ethtool_link_ksettings_add_link_mode(ks, supported,
568 40000baseKR4_Full);
569 ethtool_link_ksettings_add_link_mode(ks, advertising,
570 40000baseKR4_Full);
571 }
572 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
573 ethtool_link_ksettings_add_link_mode(ks, supported,
574 20000baseKR2_Full);
575 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
576 ethtool_link_ksettings_add_link_mode(ks, advertising,
577 20000baseKR2_Full);
578 }
579 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
580 ethtool_link_ksettings_add_link_mode(ks, supported,
581 10000baseKX4_Full);
582 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
583 ethtool_link_ksettings_add_link_mode(ks, advertising,
584 10000baseKX4_Full);
585 }
586 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
587 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
588 ethtool_link_ksettings_add_link_mode(ks, supported,
589 10000baseKR_Full);
590 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
591 ethtool_link_ksettings_add_link_mode(ks, advertising,
592 10000baseKR_Full);
593 }
594 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
595 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
596 ethtool_link_ksettings_add_link_mode(ks, supported,
597 1000baseKX_Full);
598 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
599 ethtool_link_ksettings_add_link_mode(ks, advertising,
600 1000baseKX_Full);
601 }
602 /* need to add 25G PHY types */
603 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
604 ethtool_link_ksettings_add_link_mode(ks, supported,
605 25000baseKR_Full);
606 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
607 ethtool_link_ksettings_add_link_mode(ks, advertising,
608 25000baseKR_Full);
609 }
610 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
611 ethtool_link_ksettings_add_link_mode(ks, supported,
612 25000baseCR_Full);
613 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
614 ethtool_link_ksettings_add_link_mode(ks, advertising,
615 25000baseCR_Full);
616 }
617 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
618 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
619 ethtool_link_ksettings_add_link_mode(ks, supported,
620 25000baseSR_Full);
621 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
622 ethtool_link_ksettings_add_link_mode(ks, advertising,
623 25000baseSR_Full);
624 }
625 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
626 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
627 ethtool_link_ksettings_add_link_mode(ks, supported,
628 25000baseCR_Full);
629 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
630 ethtool_link_ksettings_add_link_mode(ks, advertising,
631 25000baseCR_Full);
632 }
633 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
634 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
636 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
637 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
638 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
639 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
640 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
641 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
642 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
643 ethtool_link_ksettings_add_link_mode(ks, advertising,
644 FEC_NONE);
645 ethtool_link_ksettings_add_link_mode(ks, advertising,
646 FEC_RS);
647 ethtool_link_ksettings_add_link_mode(ks, advertising,
648 FEC_BASER);
649 }
650 }
651 /* need to add new 10G PHY types */
652 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
653 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
654 ethtool_link_ksettings_add_link_mode(ks, supported,
655 10000baseCR_Full);
656 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
657 ethtool_link_ksettings_add_link_mode(ks, advertising,
658 10000baseCR_Full);
659 }
660 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
661 ethtool_link_ksettings_add_link_mode(ks, supported,
662 10000baseSR_Full);
663 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
664 ethtool_link_ksettings_add_link_mode(ks, advertising,
665 10000baseSR_Full);
666 }
667 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
668 ethtool_link_ksettings_add_link_mode(ks, supported,
669 10000baseLR_Full);
670 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
671 ethtool_link_ksettings_add_link_mode(ks, advertising,
672 10000baseLR_Full);
673 }
674 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
675 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
676 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
677 ethtool_link_ksettings_add_link_mode(ks, supported,
678 1000baseX_Full);
679 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
680 ethtool_link_ksettings_add_link_mode(ks, advertising,
681 1000baseX_Full);
682 }
683 /* Autoneg PHY types */
684 if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
685 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
686 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
687 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
688 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
689 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
690 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
691 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
692 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
693 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
694 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
695 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
696 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
697 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
698 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
699 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
700 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
701 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
702 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
703 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
704 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
705 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
706 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
707 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
708 ethtool_link_ksettings_add_link_mode(ks, supported,
709 Autoneg);
710 ethtool_link_ksettings_add_link_mode(ks, advertising,
711 Autoneg);
712 }
713}
714
715/**
716 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
717 * @req_fec_info: mask request FEC info
718 * @ks: ethtool ksettings to fill in
719 **/
720static void i40e_get_settings_link_up_fec(u8 req_fec_info,
721 struct ethtool_link_ksettings *ks)
722{
723 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
724 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
725 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
726
727 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
728 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
729 ethtool_link_ksettings_add_link_mode(ks, advertising,
730 FEC_NONE);
731 ethtool_link_ksettings_add_link_mode(ks, advertising,
732 FEC_BASER);
733 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
734 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
735 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
736 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
737 ethtool_link_ksettings_add_link_mode(ks, advertising,
738 FEC_BASER);
739 } else {
740 ethtool_link_ksettings_add_link_mode(ks, advertising,
741 FEC_NONE);
742 }
743}
744
745/**
746 * i40e_get_settings_link_up - Get the Link settings for when link is up
747 * @hw: hw structure
748 * @ks: ethtool ksettings to fill in
749 * @netdev: network interface device structure
750 * @pf: pointer to physical function struct
751 **/
752static void i40e_get_settings_link_up(struct i40e_hw *hw,
753 struct ethtool_link_ksettings *ks,
754 struct net_device *netdev,
755 struct i40e_pf *pf)
756{
757 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
758 struct ethtool_link_ksettings cap_ksettings;
759 u32 link_speed = hw_link_info->link_speed;
760
761 /* Initialize supported and advertised settings based on phy settings */
762 switch (hw_link_info->phy_type) {
763 case I40E_PHY_TYPE_40GBASE_CR4:
764 case I40E_PHY_TYPE_40GBASE_CR4_CU:
765 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
766 ethtool_link_ksettings_add_link_mode(ks, supported,
767 40000baseCR4_Full);
768 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
769 ethtool_link_ksettings_add_link_mode(ks, advertising,
770 40000baseCR4_Full);
771 break;
772 case I40E_PHY_TYPE_XLAUI:
773 case I40E_PHY_TYPE_XLPPI:
774 case I40E_PHY_TYPE_40GBASE_AOC:
775 ethtool_link_ksettings_add_link_mode(ks, supported,
776 40000baseCR4_Full);
777 ethtool_link_ksettings_add_link_mode(ks, advertising,
778 40000baseCR4_Full);
779 break;
780 case I40E_PHY_TYPE_40GBASE_SR4:
781 ethtool_link_ksettings_add_link_mode(ks, supported,
782 40000baseSR4_Full);
783 ethtool_link_ksettings_add_link_mode(ks, advertising,
784 40000baseSR4_Full);
785 break;
786 case I40E_PHY_TYPE_40GBASE_LR4:
787 ethtool_link_ksettings_add_link_mode(ks, supported,
788 40000baseLR4_Full);
789 ethtool_link_ksettings_add_link_mode(ks, advertising,
790 40000baseLR4_Full);
791 break;
792 case I40E_PHY_TYPE_25GBASE_SR:
793 case I40E_PHY_TYPE_25GBASE_LR:
794 case I40E_PHY_TYPE_10GBASE_SR:
795 case I40E_PHY_TYPE_10GBASE_LR:
796 case I40E_PHY_TYPE_1000BASE_SX:
797 case I40E_PHY_TYPE_1000BASE_LX:
798 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
799 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
800 ethtool_link_ksettings_add_link_mode(ks, supported,
801 25000baseSR_Full);
802 ethtool_link_ksettings_add_link_mode(ks, advertising,
803 25000baseSR_Full);
804 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
805 ethtool_link_ksettings_add_link_mode(ks, supported,
806 10000baseSR_Full);
807 ethtool_link_ksettings_add_link_mode(ks, advertising,
808 10000baseSR_Full);
809 ethtool_link_ksettings_add_link_mode(ks, supported,
810 10000baseLR_Full);
811 ethtool_link_ksettings_add_link_mode(ks, advertising,
812 10000baseLR_Full);
813 ethtool_link_ksettings_add_link_mode(ks, supported,
814 1000baseX_Full);
815 ethtool_link_ksettings_add_link_mode(ks, advertising,
816 1000baseX_Full);
817 ethtool_link_ksettings_add_link_mode(ks, supported,
818 10000baseT_Full);
819 if (hw_link_info->module_type[2] &
820 I40E_MODULE_TYPE_1000BASE_SX ||
821 hw_link_info->module_type[2] &
822 I40E_MODULE_TYPE_1000BASE_LX) {
823 ethtool_link_ksettings_add_link_mode(ks, supported,
824 1000baseT_Full);
825 if (hw_link_info->requested_speeds &
826 I40E_LINK_SPEED_1GB)
827 ethtool_link_ksettings_add_link_mode(
828 ks, advertising, 1000baseT_Full);
829 }
830 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
831 ethtool_link_ksettings_add_link_mode(ks, advertising,
832 10000baseT_Full);
833 break;
834 case I40E_PHY_TYPE_10GBASE_T:
835 case I40E_PHY_TYPE_5GBASE_T:
836 case I40E_PHY_TYPE_2_5GBASE_T:
837 case I40E_PHY_TYPE_1000BASE_T:
838 case I40E_PHY_TYPE_100BASE_TX:
839 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
840 ethtool_link_ksettings_add_link_mode(ks, supported,
841 10000baseT_Full);
842 ethtool_link_ksettings_add_link_mode(ks, supported,
843 5000baseT_Full);
844 ethtool_link_ksettings_add_link_mode(ks, supported,
845 2500baseT_Full);
846 ethtool_link_ksettings_add_link_mode(ks, supported,
847 1000baseT_Full);
848 ethtool_link_ksettings_add_link_mode(ks, supported,
849 100baseT_Full);
850 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
851 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
852 ethtool_link_ksettings_add_link_mode(ks, advertising,
853 10000baseT_Full);
854 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
855 ethtool_link_ksettings_add_link_mode(ks, advertising,
856 5000baseT_Full);
857 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
858 ethtool_link_ksettings_add_link_mode(ks, advertising,
859 2500baseT_Full);
860 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
861 ethtool_link_ksettings_add_link_mode(ks, advertising,
862 1000baseT_Full);
863 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
864 ethtool_link_ksettings_add_link_mode(ks, advertising,
865 100baseT_Full);
866 break;
867 case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
868 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
869 ethtool_link_ksettings_add_link_mode(ks, supported,
870 1000baseT_Full);
871 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
872 ethtool_link_ksettings_add_link_mode(ks, advertising,
873 1000baseT_Full);
874 break;
875 case I40E_PHY_TYPE_10GBASE_CR1_CU:
876 case I40E_PHY_TYPE_10GBASE_CR1:
877 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
878 ethtool_link_ksettings_add_link_mode(ks, supported,
879 10000baseT_Full);
880 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
881 ethtool_link_ksettings_add_link_mode(ks, advertising,
882 10000baseT_Full);
883 break;
884 case I40E_PHY_TYPE_XAUI:
885 case I40E_PHY_TYPE_XFI:
886 case I40E_PHY_TYPE_SFI:
887 case I40E_PHY_TYPE_10GBASE_SFPP_CU:
888 case I40E_PHY_TYPE_10GBASE_AOC:
889 ethtool_link_ksettings_add_link_mode(ks, supported,
890 10000baseT_Full);
891 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
892 ethtool_link_ksettings_add_link_mode(ks, advertising,
893 10000baseT_Full);
894 break;
895 case I40E_PHY_TYPE_SGMII:
896 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
897 ethtool_link_ksettings_add_link_mode(ks, supported,
898 1000baseT_Full);
899 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
900 ethtool_link_ksettings_add_link_mode(ks, advertising,
901 1000baseT_Full);
902 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
903 ethtool_link_ksettings_add_link_mode(ks, supported,
904 100baseT_Full);
905 if (hw_link_info->requested_speeds &
906 I40E_LINK_SPEED_100MB)
907 ethtool_link_ksettings_add_link_mode(
908 ks, advertising, 100baseT_Full);
909 }
910 break;
911 case I40E_PHY_TYPE_40GBASE_KR4:
912 case I40E_PHY_TYPE_25GBASE_KR:
913 case I40E_PHY_TYPE_20GBASE_KR2:
914 case I40E_PHY_TYPE_10GBASE_KR:
915 case I40E_PHY_TYPE_10GBASE_KX4:
916 case I40E_PHY_TYPE_1000BASE_KX:
917 ethtool_link_ksettings_add_link_mode(ks, supported,
918 40000baseKR4_Full);
919 ethtool_link_ksettings_add_link_mode(ks, supported,
920 25000baseKR_Full);
921 ethtool_link_ksettings_add_link_mode(ks, supported,
922 20000baseKR2_Full);
923 ethtool_link_ksettings_add_link_mode(ks, supported,
924 10000baseKR_Full);
925 ethtool_link_ksettings_add_link_mode(ks, supported,
926 10000baseKX4_Full);
927 ethtool_link_ksettings_add_link_mode(ks, supported,
928 1000baseKX_Full);
929 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
930 ethtool_link_ksettings_add_link_mode(ks, advertising,
931 40000baseKR4_Full);
932 ethtool_link_ksettings_add_link_mode(ks, advertising,
933 25000baseKR_Full);
934 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
935 ethtool_link_ksettings_add_link_mode(ks, advertising,
936 20000baseKR2_Full);
937 ethtool_link_ksettings_add_link_mode(ks, advertising,
938 10000baseKR_Full);
939 ethtool_link_ksettings_add_link_mode(ks, advertising,
940 10000baseKX4_Full);
941 ethtool_link_ksettings_add_link_mode(ks, advertising,
942 1000baseKX_Full);
943 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
944 break;
945 case I40E_PHY_TYPE_25GBASE_CR:
946 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
947 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
948 ethtool_link_ksettings_add_link_mode(ks, supported,
949 25000baseCR_Full);
950 ethtool_link_ksettings_add_link_mode(ks, advertising,
951 25000baseCR_Full);
952 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
953
954 break;
955 case I40E_PHY_TYPE_25GBASE_AOC:
956 case I40E_PHY_TYPE_25GBASE_ACC:
957 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
958 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
959 ethtool_link_ksettings_add_link_mode(ks, supported,
960 25000baseCR_Full);
961 ethtool_link_ksettings_add_link_mode(ks, advertising,
962 25000baseCR_Full);
963 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
964
965 ethtool_link_ksettings_add_link_mode(ks, supported,
966 10000baseCR_Full);
967 ethtool_link_ksettings_add_link_mode(ks, advertising,
968 10000baseCR_Full);
969 break;
970 default:
971 /* if we got here and link is up something bad is afoot */
972 netdev_info(netdev,
973 "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
974 hw_link_info->phy_type);
975 }
976
977 /* Now that we've worked out everything that could be supported by the
978 * current PHY type, get what is supported by the NVM and intersect
979 * them to get what is truly supported
980 */
981 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
982 i40e_phy_type_to_ethtool(pf, &cap_ksettings);
983 ethtool_intersect_link_masks(ks, &cap_ksettings);
984
985 /* Set speed and duplex */
986 switch (link_speed) {
987 case I40E_LINK_SPEED_40GB:
988 ks->base.speed = SPEED_40000;
989 break;
990 case I40E_LINK_SPEED_25GB:
991 ks->base.speed = SPEED_25000;
992 break;
993 case I40E_LINK_SPEED_20GB:
994 ks->base.speed = SPEED_20000;
995 break;
996 case I40E_LINK_SPEED_10GB:
997 ks->base.speed = SPEED_10000;
998 break;
999 case I40E_LINK_SPEED_5GB:
1000 ks->base.speed = SPEED_5000;
1001 break;
1002 case I40E_LINK_SPEED_2_5GB:
1003 ks->base.speed = SPEED_2500;
1004 break;
1005 case I40E_LINK_SPEED_1GB:
1006 ks->base.speed = SPEED_1000;
1007 break;
1008 case I40E_LINK_SPEED_100MB:
1009 ks->base.speed = SPEED_100;
1010 break;
1011 default:
1012 ks->base.speed = SPEED_UNKNOWN;
1013 break;
1014 }
1015 ks->base.duplex = DUPLEX_FULL;
1016}
1017
1018/**
1019 * i40e_get_settings_link_down - Get the Link settings for when link is down
1020 * @hw: hw structure
1021 * @ks: ethtool ksettings to fill in
1022 * @pf: pointer to physical function struct
1023 *
1024 * Reports link settings that can be determined when link is down
1025 **/
1026static void i40e_get_settings_link_down(struct i40e_hw *hw,
1027 struct ethtool_link_ksettings *ks,
1028 struct i40e_pf *pf)
1029{
1030 /* link is down and the driver needs to fall back on
1031 * supported phy types to figure out what info to display
1032 */
1033 i40e_phy_type_to_ethtool(pf, ks);
1034
1035 /* With no link speed and duplex are unknown */
1036 ks->base.speed = SPEED_UNKNOWN;
1037 ks->base.duplex = DUPLEX_UNKNOWN;
1038}
1039
1040/**
1041 * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1042 * @netdev: network interface device structure
1043 * @ks: ethtool ksettings
1044 *
1045 * Reports speed/duplex settings based on media_type
1046 **/
1047static int i40e_get_link_ksettings(struct net_device *netdev,
1048 struct ethtool_link_ksettings *ks)
1049{
1050 struct i40e_netdev_priv *np = netdev_priv(netdev);
1051 struct i40e_pf *pf = np->vsi->back;
1052 struct i40e_hw *hw = &pf->hw;
1053 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1054 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1055
1056 ethtool_link_ksettings_zero_link_mode(ks, supported);
1057 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1058
1059 if (link_up)
1060 i40e_get_settings_link_up(hw, ks, netdev, pf);
1061 else
1062 i40e_get_settings_link_down(hw, ks, pf);
1063
1064 /* Now set the settings that don't rely on link being up/down */
1065 /* Set autoneg settings */
1066 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1067 AUTONEG_ENABLE : AUTONEG_DISABLE);
1068
1069 /* Set media type settings */
1070 switch (hw->phy.media_type) {
1071 case I40E_MEDIA_TYPE_BACKPLANE:
1072 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1073 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1074 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1075 ethtool_link_ksettings_add_link_mode(ks, advertising,
1076 Backplane);
1077 ks->base.port = PORT_NONE;
1078 break;
1079 case I40E_MEDIA_TYPE_BASET:
1080 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1081 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1082 ks->base.port = PORT_TP;
1083 break;
1084 case I40E_MEDIA_TYPE_DA:
1085 case I40E_MEDIA_TYPE_CX4:
1086 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1087 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1088 ks->base.port = PORT_DA;
1089 break;
1090 case I40E_MEDIA_TYPE_FIBER:
1091 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1092 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1093 ks->base.port = PORT_FIBRE;
1094 break;
1095 case I40E_MEDIA_TYPE_UNKNOWN:
1096 default:
1097 ks->base.port = PORT_OTHER;
1098 break;
1099 }
1100
1101 /* Set flow control settings */
1102 ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1103
1104 switch (hw->fc.requested_mode) {
1105 case I40E_FC_FULL:
1106 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1107 break;
1108 case I40E_FC_TX_PAUSE:
1109 ethtool_link_ksettings_add_link_mode(ks, advertising,
1110 Asym_Pause);
1111 break;
1112 case I40E_FC_RX_PAUSE:
1113 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1114 ethtool_link_ksettings_add_link_mode(ks, advertising,
1115 Asym_Pause);
1116 break;
1117 default:
1118 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1119 ethtool_link_ksettings_del_link_mode(ks, advertising,
1120 Asym_Pause);
1121 break;
1122 }
1123
1124 return 0;
1125}
1126
1127/**
1128 * i40e_set_link_ksettings - Set Speed and Duplex
1129 * @netdev: network interface device structure
1130 * @ks: ethtool ksettings
1131 *
1132 * Set speed/duplex per media_types advertised/forced
1133 **/
1134static int i40e_set_link_ksettings(struct net_device *netdev,
1135 const struct ethtool_link_ksettings *ks)
1136{
1137 struct i40e_netdev_priv *np = netdev_priv(netdev);
1138 struct i40e_aq_get_phy_abilities_resp abilities;
1139 struct ethtool_link_ksettings safe_ks;
1140 struct ethtool_link_ksettings copy_ks;
1141 struct i40e_aq_set_phy_config config;
1142 struct i40e_pf *pf = np->vsi->back;
1143 struct i40e_vsi *vsi = np->vsi;
1144 struct i40e_hw *hw = &pf->hw;
1145 bool autoneg_changed = false;
1146 i40e_status status = 0;
1147 int timeout = 50;
1148 int err = 0;
1149 u8 autoneg;
1150
1151 /* Changing port settings is not supported if this isn't the
1152 * port's controlling PF
1153 */
1154 if (hw->partition_id != 1) {
1155 i40e_partition_setting_complaint(pf);
1156 return -EOPNOTSUPP;
1157 }
1158 if (vsi != pf->vsi[pf->lan_vsi])
1159 return -EOPNOTSUPP;
1160 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1161 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1162 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1163 hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1164 hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1165 return -EOPNOTSUPP;
1166 if (hw->device_id == I40E_DEV_ID_KX_B ||
1167 hw->device_id == I40E_DEV_ID_KX_C ||
1168 hw->device_id == I40E_DEV_ID_20G_KR2 ||
1169 hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1170 hw->device_id == I40E_DEV_ID_25G_B ||
1171 hw->device_id == I40E_DEV_ID_KX_X722) {
1172 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1173 return -EOPNOTSUPP;
1174 }
1175
1176 /* copy the ksettings to copy_ks to avoid modifying the origin */
1177 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings));
1178
1179 /* save autoneg out of ksettings */
1180 autoneg = copy_ks.base.autoneg;
1181
1182 /* get our own copy of the bits to check against */
1183 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1184 safe_ks.base.cmd = copy_ks.base.cmd;
1185 safe_ks.base.link_mode_masks_nwords =
1186 copy_ks.base.link_mode_masks_nwords;
1187 i40e_get_link_ksettings(netdev, &safe_ks);
1188
1189 /* Get link modes supported by hardware and check against modes
1190 * requested by the user. Return an error if unsupported mode was set.
1191 */
1192 if (!bitmap_subset(copy_ks.link_modes.advertising,
1193 safe_ks.link_modes.supported,
1194 __ETHTOOL_LINK_MODE_MASK_NBITS))
1195 return -EINVAL;
1196
1197 /* set autoneg back to what it currently is */
1198 copy_ks.base.autoneg = safe_ks.base.autoneg;
1199
1200 /* If copy_ks.base and safe_ks.base are not the same now, then they are
1201 * trying to set something that we do not support.
1202 */
1203 if (memcmp(©_ks.base, &safe_ks.base,
1204 sizeof(struct ethtool_link_settings)))
1205 return -EOPNOTSUPP;
1206
1207 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1208 timeout--;
1209 if (!timeout)
1210 return -EBUSY;
1211 usleep_range(1000, 2000);
1212 }
1213
1214 /* Get the current phy config */
1215 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1216 NULL);
1217 if (status) {
1218 err = -EAGAIN;
1219 goto done;
1220 }
1221
1222 /* Copy abilities to config in case autoneg is not
1223 * set below
1224 */
1225 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1226 config.abilities = abilities.abilities;
1227
1228 /* Check autoneg */
1229 if (autoneg == AUTONEG_ENABLE) {
1230 /* If autoneg was not already enabled */
1231 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1232 /* If autoneg is not supported, return error */
1233 if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1234 supported,
1235 Autoneg)) {
1236 netdev_info(netdev, "Autoneg not supported on this phy\n");
1237 err = -EINVAL;
1238 goto done;
1239 }
1240 /* Autoneg is allowed to change */
1241 config.abilities = abilities.abilities |
1242 I40E_AQ_PHY_ENABLE_AN;
1243 autoneg_changed = true;
1244 }
1245 } else {
1246 /* If autoneg is currently enabled */
1247 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1248 /* If autoneg is supported 10GBASE_T is the only PHY
1249 * that can disable it, so otherwise return error
1250 */
1251 if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1252 supported,
1253 Autoneg) &&
1254 hw->phy.link_info.phy_type !=
1255 I40E_PHY_TYPE_10GBASE_T) {
1256 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1257 err = -EINVAL;
1258 goto done;
1259 }
1260 /* Autoneg is allowed to change */
1261 config.abilities = abilities.abilities &
1262 ~I40E_AQ_PHY_ENABLE_AN;
1263 autoneg_changed = true;
1264 }
1265 }
1266
1267 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1268 100baseT_Full))
1269 config.link_speed |= I40E_LINK_SPEED_100MB;
1270 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1271 1000baseT_Full) ||
1272 ethtool_link_ksettings_test_link_mode(ks, advertising,
1273 1000baseX_Full) ||
1274 ethtool_link_ksettings_test_link_mode(ks, advertising,
1275 1000baseKX_Full))
1276 config.link_speed |= I40E_LINK_SPEED_1GB;
1277 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1278 10000baseT_Full) ||
1279 ethtool_link_ksettings_test_link_mode(ks, advertising,
1280 10000baseKX4_Full) ||
1281 ethtool_link_ksettings_test_link_mode(ks, advertising,
1282 10000baseKR_Full) ||
1283 ethtool_link_ksettings_test_link_mode(ks, advertising,
1284 10000baseCR_Full) ||
1285 ethtool_link_ksettings_test_link_mode(ks, advertising,
1286 10000baseSR_Full) ||
1287 ethtool_link_ksettings_test_link_mode(ks, advertising,
1288 10000baseLR_Full))
1289 config.link_speed |= I40E_LINK_SPEED_10GB;
1290 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1291 2500baseT_Full))
1292 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1293 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1294 5000baseT_Full))
1295 config.link_speed |= I40E_LINK_SPEED_5GB;
1296 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1297 20000baseKR2_Full))
1298 config.link_speed |= I40E_LINK_SPEED_20GB;
1299 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1300 25000baseCR_Full) ||
1301 ethtool_link_ksettings_test_link_mode(ks, advertising,
1302 25000baseKR_Full) ||
1303 ethtool_link_ksettings_test_link_mode(ks, advertising,
1304 25000baseSR_Full))
1305 config.link_speed |= I40E_LINK_SPEED_25GB;
1306 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1307 40000baseKR4_Full) ||
1308 ethtool_link_ksettings_test_link_mode(ks, advertising,
1309 40000baseCR4_Full) ||
1310 ethtool_link_ksettings_test_link_mode(ks, advertising,
1311 40000baseSR4_Full) ||
1312 ethtool_link_ksettings_test_link_mode(ks, advertising,
1313 40000baseLR4_Full))
1314 config.link_speed |= I40E_LINK_SPEED_40GB;
1315
1316 /* If speed didn't get set, set it to what it currently is.
1317 * This is needed because if advertise is 0 (as it is when autoneg
1318 * is disabled) then speed won't get set.
1319 */
1320 if (!config.link_speed)
1321 config.link_speed = abilities.link_speed;
1322 if (autoneg_changed || abilities.link_speed != config.link_speed) {
1323 /* copy over the rest of the abilities */
1324 config.phy_type = abilities.phy_type;
1325 config.phy_type_ext = abilities.phy_type_ext;
1326 config.eee_capability = abilities.eee_capability;
1327 config.eeer = abilities.eeer_val;
1328 config.low_power_ctrl = abilities.d3_lpan;
1329 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1330 I40E_AQ_PHY_FEC_CONFIG_MASK;
1331
1332 /* save the requested speeds */
1333 hw->phy.link_info.requested_speeds = config.link_speed;
1334 /* set link and auto negotiation so changes take effect */
1335 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1336 /* If link is up put link down */
1337 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1338 /* Tell the OS link is going down, the link will go
1339 * back up when fw says it is ready asynchronously
1340 */
1341 i40e_print_link_message(vsi, false);
1342 netif_carrier_off(netdev);
1343 netif_tx_stop_all_queues(netdev);
1344 }
1345
1346 /* make the aq call */
1347 status = i40e_aq_set_phy_config(hw, &config, NULL);
1348 if (status) {
1349 netdev_info(netdev,
1350 "Set phy config failed, err %s aq_err %s\n",
1351 i40e_stat_str(hw, status),
1352 i40e_aq_str(hw, hw->aq.asq_last_status));
1353 err = -EAGAIN;
1354 goto done;
1355 }
1356
1357 status = i40e_update_link_info(hw);
1358 if (status)
1359 netdev_dbg(netdev,
1360 "Updating link info failed with err %s aq_err %s\n",
1361 i40e_stat_str(hw, status),
1362 i40e_aq_str(hw, hw->aq.asq_last_status));
1363
1364 } else {
1365 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1366 }
1367
1368done:
1369 clear_bit(__I40E_CONFIG_BUSY, pf->state);
1370
1371 return err;
1372}
1373
1374static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1375{
1376 struct i40e_netdev_priv *np = netdev_priv(netdev);
1377 struct i40e_aq_get_phy_abilities_resp abilities;
1378 struct i40e_pf *pf = np->vsi->back;
1379 struct i40e_hw *hw = &pf->hw;
1380 i40e_status status = 0;
1381 u32 flags = 0;
1382 int err = 0;
1383
1384 flags = READ_ONCE(pf->flags);
1385 i40e_set_fec_in_flags(fec_cfg, &flags);
1386
1387 /* Get the current phy config */
1388 memset(&abilities, 0, sizeof(abilities));
1389 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1390 NULL);
1391 if (status) {
1392 err = -EAGAIN;
1393 goto done;
1394 }
1395
1396 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1397 struct i40e_aq_set_phy_config config;
1398
1399 memset(&config, 0, sizeof(config));
1400 config.phy_type = abilities.phy_type;
1401 config.abilities = abilities.abilities;
1402 config.phy_type_ext = abilities.phy_type_ext;
1403 config.link_speed = abilities.link_speed;
1404 config.eee_capability = abilities.eee_capability;
1405 config.eeer = abilities.eeer_val;
1406 config.low_power_ctrl = abilities.d3_lpan;
1407 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1408 status = i40e_aq_set_phy_config(hw, &config, NULL);
1409 if (status) {
1410 netdev_info(netdev,
1411 "Set phy config failed, err %s aq_err %s\n",
1412 i40e_stat_str(hw, status),
1413 i40e_aq_str(hw, hw->aq.asq_last_status));
1414 err = -EAGAIN;
1415 goto done;
1416 }
1417 pf->flags = flags;
1418 status = i40e_update_link_info(hw);
1419 if (status)
1420 /* debug level message only due to relation to the link
1421 * itself rather than to the FEC settings
1422 * (e.g. no physical connection etc.)
1423 */
1424 netdev_dbg(netdev,
1425 "Updating link info failed with err %s aq_err %s\n",
1426 i40e_stat_str(hw, status),
1427 i40e_aq_str(hw, hw->aq.asq_last_status));
1428 }
1429
1430done:
1431 return err;
1432}
1433
1434static int i40e_get_fec_param(struct net_device *netdev,
1435 struct ethtool_fecparam *fecparam)
1436{
1437 struct i40e_netdev_priv *np = netdev_priv(netdev);
1438 struct i40e_aq_get_phy_abilities_resp abilities;
1439 struct i40e_pf *pf = np->vsi->back;
1440 struct i40e_hw *hw = &pf->hw;
1441 i40e_status status = 0;
1442 int err = 0;
1443 u8 fec_cfg;
1444
1445 /* Get the current phy config */
1446 memset(&abilities, 0, sizeof(abilities));
1447 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1448 NULL);
1449 if (status) {
1450 err = -EAGAIN;
1451 goto done;
1452 }
1453
1454 fecparam->fec = 0;
1455 fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1456 if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1457 fecparam->fec |= ETHTOOL_FEC_AUTO;
1458 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1459 I40E_AQ_SET_FEC_ABILITY_RS))
1460 fecparam->fec |= ETHTOOL_FEC_RS;
1461 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1462 I40E_AQ_SET_FEC_ABILITY_KR))
1463 fecparam->fec |= ETHTOOL_FEC_BASER;
1464 if (fec_cfg == 0)
1465 fecparam->fec |= ETHTOOL_FEC_OFF;
1466
1467 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1468 fecparam->active_fec = ETHTOOL_FEC_BASER;
1469 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1470 fecparam->active_fec = ETHTOOL_FEC_RS;
1471 else
1472 fecparam->active_fec = ETHTOOL_FEC_OFF;
1473done:
1474 return err;
1475}
1476
1477static int i40e_set_fec_param(struct net_device *netdev,
1478 struct ethtool_fecparam *fecparam)
1479{
1480 struct i40e_netdev_priv *np = netdev_priv(netdev);
1481 struct i40e_pf *pf = np->vsi->back;
1482 struct i40e_hw *hw = &pf->hw;
1483 u8 fec_cfg = 0;
1484 int err = 0;
1485
1486 if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1487 hw->device_id != I40E_DEV_ID_25G_B) {
1488 err = -EPERM;
1489 goto done;
1490 }
1491
1492 switch (fecparam->fec) {
1493 case ETHTOOL_FEC_AUTO:
1494 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1495 break;
1496 case ETHTOOL_FEC_RS:
1497 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1498 I40E_AQ_SET_FEC_ABILITY_RS);
1499 break;
1500 case ETHTOOL_FEC_BASER:
1501 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1502 I40E_AQ_SET_FEC_ABILITY_KR);
1503 break;
1504 case ETHTOOL_FEC_OFF:
1505 case ETHTOOL_FEC_NONE:
1506 fec_cfg = 0;
1507 break;
1508 default:
1509 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1510 fecparam->fec);
1511 err = -EINVAL;
1512 goto done;
1513 }
1514
1515 err = i40e_set_fec_cfg(netdev, fec_cfg);
1516
1517done:
1518 return err;
1519}
1520
1521static int i40e_nway_reset(struct net_device *netdev)
1522{
1523 /* restart autonegotiation */
1524 struct i40e_netdev_priv *np = netdev_priv(netdev);
1525 struct i40e_pf *pf = np->vsi->back;
1526 struct i40e_hw *hw = &pf->hw;
1527 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1528 i40e_status ret = 0;
1529
1530 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1531 if (ret) {
1532 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1533 i40e_stat_str(hw, ret),
1534 i40e_aq_str(hw, hw->aq.asq_last_status));
1535 return -EIO;
1536 }
1537
1538 return 0;
1539}
1540
1541/**
1542 * i40e_get_pauseparam - Get Flow Control status
1543 * @netdev: netdevice structure
1544 * @pause: buffer to return pause parameters
1545 *
1546 * Return tx/rx-pause status
1547 **/
1548static void i40e_get_pauseparam(struct net_device *netdev,
1549 struct ethtool_pauseparam *pause)
1550{
1551 struct i40e_netdev_priv *np = netdev_priv(netdev);
1552 struct i40e_pf *pf = np->vsi->back;
1553 struct i40e_hw *hw = &pf->hw;
1554 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1555 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1556
1557 pause->autoneg =
1558 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1559 AUTONEG_ENABLE : AUTONEG_DISABLE);
1560
1561 /* PFC enabled so report LFC as off */
1562 if (dcbx_cfg->pfc.pfcenable) {
1563 pause->rx_pause = 0;
1564 pause->tx_pause = 0;
1565 return;
1566 }
1567
1568 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1569 pause->rx_pause = 1;
1570 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1571 pause->tx_pause = 1;
1572 } else if (hw->fc.current_mode == I40E_FC_FULL) {
1573 pause->rx_pause = 1;
1574 pause->tx_pause = 1;
1575 }
1576}
1577
1578/**
1579 * i40e_set_pauseparam - Set Flow Control parameter
1580 * @netdev: network interface device structure
1581 * @pause: return tx/rx flow control status
1582 **/
1583static int i40e_set_pauseparam(struct net_device *netdev,
1584 struct ethtool_pauseparam *pause)
1585{
1586 struct i40e_netdev_priv *np = netdev_priv(netdev);
1587 struct i40e_pf *pf = np->vsi->back;
1588 struct i40e_vsi *vsi = np->vsi;
1589 struct i40e_hw *hw = &pf->hw;
1590 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1591 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1592 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1593 i40e_status status;
1594 u8 aq_failures;
1595 int err = 0;
1596 u32 is_an;
1597
1598 /* Changing the port's flow control is not supported if this isn't the
1599 * port's controlling PF
1600 */
1601 if (hw->partition_id != 1) {
1602 i40e_partition_setting_complaint(pf);
1603 return -EOPNOTSUPP;
1604 }
1605
1606 if (vsi != pf->vsi[pf->lan_vsi])
1607 return -EOPNOTSUPP;
1608
1609 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1610 if (pause->autoneg != is_an) {
1611 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1612 return -EOPNOTSUPP;
1613 }
1614
1615 /* If we have link and don't have autoneg */
1616 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1617 /* Send message that it might not necessarily work*/
1618 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1619 }
1620
1621 if (dcbx_cfg->pfc.pfcenable) {
1622 netdev_info(netdev,
1623 "Priority flow control enabled. Cannot set link flow control.\n");
1624 return -EOPNOTSUPP;
1625 }
1626
1627 if (pause->rx_pause && pause->tx_pause)
1628 hw->fc.requested_mode = I40E_FC_FULL;
1629 else if (pause->rx_pause && !pause->tx_pause)
1630 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1631 else if (!pause->rx_pause && pause->tx_pause)
1632 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1633 else if (!pause->rx_pause && !pause->tx_pause)
1634 hw->fc.requested_mode = I40E_FC_NONE;
1635 else
1636 return -EINVAL;
1637
1638 /* Tell the OS link is going down, the link will go back up when fw
1639 * says it is ready asynchronously
1640 */
1641 i40e_print_link_message(vsi, false);
1642 netif_carrier_off(netdev);
1643 netif_tx_stop_all_queues(netdev);
1644
1645 /* Set the fc mode and only restart an if link is up*/
1646 status = i40e_set_fc(hw, &aq_failures, link_up);
1647
1648 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1649 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1650 i40e_stat_str(hw, status),
1651 i40e_aq_str(hw, hw->aq.asq_last_status));
1652 err = -EAGAIN;
1653 }
1654 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1655 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1656 i40e_stat_str(hw, status),
1657 i40e_aq_str(hw, hw->aq.asq_last_status));
1658 err = -EAGAIN;
1659 }
1660 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1661 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1662 i40e_stat_str(hw, status),
1663 i40e_aq_str(hw, hw->aq.asq_last_status));
1664 err = -EAGAIN;
1665 }
1666
1667 if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1668 /* Give it a little more time to try to come back */
1669 msleep(75);
1670 if (!test_bit(__I40E_DOWN, pf->state))
1671 return i40e_nway_reset(netdev);
1672 }
1673
1674 return err;
1675}
1676
1677static u32 i40e_get_msglevel(struct net_device *netdev)
1678{
1679 struct i40e_netdev_priv *np = netdev_priv(netdev);
1680 struct i40e_pf *pf = np->vsi->back;
1681 u32 debug_mask = pf->hw.debug_mask;
1682
1683 if (debug_mask)
1684 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1685
1686 return pf->msg_enable;
1687}
1688
1689static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1690{
1691 struct i40e_netdev_priv *np = netdev_priv(netdev);
1692 struct i40e_pf *pf = np->vsi->back;
1693
1694 if (I40E_DEBUG_USER & data)
1695 pf->hw.debug_mask = data;
1696 else
1697 pf->msg_enable = data;
1698}
1699
1700static int i40e_get_regs_len(struct net_device *netdev)
1701{
1702 int reg_count = 0;
1703 int i;
1704
1705 for (i = 0; i40e_reg_list[i].offset != 0; i++)
1706 reg_count += i40e_reg_list[i].elements;
1707
1708 return reg_count * sizeof(u32);
1709}
1710
1711static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1712 void *p)
1713{
1714 struct i40e_netdev_priv *np = netdev_priv(netdev);
1715 struct i40e_pf *pf = np->vsi->back;
1716 struct i40e_hw *hw = &pf->hw;
1717 u32 *reg_buf = p;
1718 unsigned int i, j, ri;
1719 u32 reg;
1720
1721 /* Tell ethtool which driver-version-specific regs output we have.
1722 *
1723 * At some point, if we have ethtool doing special formatting of
1724 * this data, it will rely on this version number to know how to
1725 * interpret things. Hence, this needs to be updated if/when the
1726 * diags register table is changed.
1727 */
1728 regs->version = 1;
1729
1730 /* loop through the diags reg table for what to print */
1731 ri = 0;
1732 for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1733 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1734 reg = i40e_reg_list[i].offset
1735 + (j * i40e_reg_list[i].stride);
1736 reg_buf[ri++] = rd32(hw, reg);
1737 }
1738 }
1739
1740}
1741
1742static int i40e_get_eeprom(struct net_device *netdev,
1743 struct ethtool_eeprom *eeprom, u8 *bytes)
1744{
1745 struct i40e_netdev_priv *np = netdev_priv(netdev);
1746 struct i40e_hw *hw = &np->vsi->back->hw;
1747 struct i40e_pf *pf = np->vsi->back;
1748 int ret_val = 0, len, offset;
1749 u8 *eeprom_buff;
1750 u16 i, sectors;
1751 bool last;
1752 u32 magic;
1753
1754#define I40E_NVM_SECTOR_SIZE 4096
1755 if (eeprom->len == 0)
1756 return -EINVAL;
1757
1758 /* check for NVMUpdate access method */
1759 magic = hw->vendor_id | (hw->device_id << 16);
1760 if (eeprom->magic && eeprom->magic != magic) {
1761 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1762 int errno = 0;
1763
1764 /* make sure it is the right magic for NVMUpdate */
1765 if ((eeprom->magic >> 16) != hw->device_id)
1766 errno = -EINVAL;
1767 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1768 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1769 errno = -EBUSY;
1770 else
1771 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1772
1773 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1774 dev_info(&pf->pdev->dev,
1775 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1776 ret_val, hw->aq.asq_last_status, errno,
1777 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1778 cmd->offset, cmd->data_size);
1779
1780 return errno;
1781 }
1782
1783 /* normal ethtool get_eeprom support */
1784 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1785
1786 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1787 if (!eeprom_buff)
1788 return -ENOMEM;
1789
1790 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1791 if (ret_val) {
1792 dev_info(&pf->pdev->dev,
1793 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1794 ret_val, hw->aq.asq_last_status);
1795 goto free_buff;
1796 }
1797
1798 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1799 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1800 len = I40E_NVM_SECTOR_SIZE;
1801 last = false;
1802 for (i = 0; i < sectors; i++) {
1803 if (i == (sectors - 1)) {
1804 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1805 last = true;
1806 }
1807 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1808 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1809 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1810 last, NULL);
1811 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1812 dev_info(&pf->pdev->dev,
1813 "read NVM failed, invalid offset 0x%x\n",
1814 offset);
1815 break;
1816 } else if (ret_val &&
1817 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1818 dev_info(&pf->pdev->dev,
1819 "read NVM failed, access, offset 0x%x\n",
1820 offset);
1821 break;
1822 } else if (ret_val) {
1823 dev_info(&pf->pdev->dev,
1824 "read NVM failed offset %d err=%d status=0x%x\n",
1825 offset, ret_val, hw->aq.asq_last_status);
1826 break;
1827 }
1828 }
1829
1830 i40e_release_nvm(hw);
1831 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1832free_buff:
1833 kfree(eeprom_buff);
1834 return ret_val;
1835}
1836
1837static int i40e_get_eeprom_len(struct net_device *netdev)
1838{
1839 struct i40e_netdev_priv *np = netdev_priv(netdev);
1840 struct i40e_hw *hw = &np->vsi->back->hw;
1841 u32 val;
1842
1843#define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1844 if (hw->mac.type == I40E_MAC_X722) {
1845 val = X722_EEPROM_SCOPE_LIMIT + 1;
1846 return val;
1847 }
1848 val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1849 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1850 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1851 /* register returns value in power of 2, 64Kbyte chunks. */
1852 val = (64 * 1024) * BIT(val);
1853 return val;
1854}
1855
1856static int i40e_set_eeprom(struct net_device *netdev,
1857 struct ethtool_eeprom *eeprom, u8 *bytes)
1858{
1859 struct i40e_netdev_priv *np = netdev_priv(netdev);
1860 struct i40e_hw *hw = &np->vsi->back->hw;
1861 struct i40e_pf *pf = np->vsi->back;
1862 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1863 int ret_val = 0;
1864 int errno = 0;
1865 u32 magic;
1866
1867 /* normal ethtool set_eeprom is not supported */
1868 magic = hw->vendor_id | (hw->device_id << 16);
1869 if (eeprom->magic == magic)
1870 errno = -EOPNOTSUPP;
1871 /* check for NVMUpdate access method */
1872 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1873 errno = -EINVAL;
1874 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1875 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1876 errno = -EBUSY;
1877 else
1878 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1879
1880 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1881 dev_info(&pf->pdev->dev,
1882 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1883 ret_val, hw->aq.asq_last_status, errno,
1884 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1885 cmd->offset, cmd->data_size);
1886
1887 return errno;
1888}
1889
1890static void i40e_get_drvinfo(struct net_device *netdev,
1891 struct ethtool_drvinfo *drvinfo)
1892{
1893 struct i40e_netdev_priv *np = netdev_priv(netdev);
1894 struct i40e_vsi *vsi = np->vsi;
1895 struct i40e_pf *pf = vsi->back;
1896
1897 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1898 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1899 sizeof(drvinfo->fw_version));
1900 strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1901 sizeof(drvinfo->bus_info));
1902 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1903 if (pf->hw.pf_id == 0)
1904 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1905}
1906
1907static void i40e_get_ringparam(struct net_device *netdev,
1908 struct ethtool_ringparam *ring)
1909{
1910 struct i40e_netdev_priv *np = netdev_priv(netdev);
1911 struct i40e_pf *pf = np->vsi->back;
1912 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1913
1914 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1915 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1916 ring->rx_mini_max_pending = 0;
1917 ring->rx_jumbo_max_pending = 0;
1918 ring->rx_pending = vsi->rx_rings[0]->count;
1919 ring->tx_pending = vsi->tx_rings[0]->count;
1920 ring->rx_mini_pending = 0;
1921 ring->rx_jumbo_pending = 0;
1922}
1923
1924static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1925{
1926 if (i40e_enabled_xdp_vsi(vsi)) {
1927 return index < vsi->num_queue_pairs ||
1928 (index >= vsi->alloc_queue_pairs &&
1929 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1930 }
1931
1932 return index < vsi->num_queue_pairs;
1933}
1934
1935static int i40e_set_ringparam(struct net_device *netdev,
1936 struct ethtool_ringparam *ring)
1937{
1938 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1939 struct i40e_netdev_priv *np = netdev_priv(netdev);
1940 struct i40e_hw *hw = &np->vsi->back->hw;
1941 struct i40e_vsi *vsi = np->vsi;
1942 struct i40e_pf *pf = vsi->back;
1943 u32 new_rx_count, new_tx_count;
1944 u16 tx_alloc_queue_pairs;
1945 int timeout = 50;
1946 int i, err = 0;
1947
1948 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1949 return -EINVAL;
1950
1951 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1952 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1953 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1954 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1955 netdev_info(netdev,
1956 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1957 ring->tx_pending, ring->rx_pending,
1958 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1959 return -EINVAL;
1960 }
1961
1962 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1963 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1964
1965 /* if nothing to do return success */
1966 if ((new_tx_count == vsi->tx_rings[0]->count) &&
1967 (new_rx_count == vsi->rx_rings[0]->count))
1968 return 0;
1969
1970 /* If there is a AF_XDP UMEM attached to any of Rx rings,
1971 * disallow changing the number of descriptors -- regardless
1972 * if the netdev is running or not.
1973 */
1974 if (i40e_xsk_any_rx_ring_enabled(vsi))
1975 return -EBUSY;
1976
1977 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1978 timeout--;
1979 if (!timeout)
1980 return -EBUSY;
1981 usleep_range(1000, 2000);
1982 }
1983
1984 if (!netif_running(vsi->netdev)) {
1985 /* simple case - set for the next time the netdev is started */
1986 for (i = 0; i < vsi->num_queue_pairs; i++) {
1987 vsi->tx_rings[i]->count = new_tx_count;
1988 vsi->rx_rings[i]->count = new_rx_count;
1989 if (i40e_enabled_xdp_vsi(vsi))
1990 vsi->xdp_rings[i]->count = new_tx_count;
1991 }
1992 vsi->num_tx_desc = new_tx_count;
1993 vsi->num_rx_desc = new_rx_count;
1994 goto done;
1995 }
1996
1997 /* We can't just free everything and then setup again,
1998 * because the ISRs in MSI-X mode get passed pointers
1999 * to the Tx and Rx ring structs.
2000 */
2001
2002 /* alloc updated Tx and XDP Tx resources */
2003 tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2004 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2005 if (new_tx_count != vsi->tx_rings[0]->count) {
2006 netdev_info(netdev,
2007 "Changing Tx descriptor count from %d to %d.\n",
2008 vsi->tx_rings[0]->count, new_tx_count);
2009 tx_rings = kcalloc(tx_alloc_queue_pairs,
2010 sizeof(struct i40e_ring), GFP_KERNEL);
2011 if (!tx_rings) {
2012 err = -ENOMEM;
2013 goto done;
2014 }
2015
2016 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2017 if (!i40e_active_tx_ring_index(vsi, i))
2018 continue;
2019
2020 tx_rings[i] = *vsi->tx_rings[i];
2021 tx_rings[i].count = new_tx_count;
2022 /* the desc and bi pointers will be reallocated in the
2023 * setup call
2024 */
2025 tx_rings[i].desc = NULL;
2026 tx_rings[i].rx_bi = NULL;
2027 err = i40e_setup_tx_descriptors(&tx_rings[i]);
2028 if (err) {
2029 while (i) {
2030 i--;
2031 if (!i40e_active_tx_ring_index(vsi, i))
2032 continue;
2033 i40e_free_tx_resources(&tx_rings[i]);
2034 }
2035 kfree(tx_rings);
2036 tx_rings = NULL;
2037
2038 goto done;
2039 }
2040 }
2041 }
2042
2043 /* alloc updated Rx resources */
2044 if (new_rx_count != vsi->rx_rings[0]->count) {
2045 netdev_info(netdev,
2046 "Changing Rx descriptor count from %d to %d\n",
2047 vsi->rx_rings[0]->count, new_rx_count);
2048 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2049 sizeof(struct i40e_ring), GFP_KERNEL);
2050 if (!rx_rings) {
2051 err = -ENOMEM;
2052 goto free_tx;
2053 }
2054
2055 for (i = 0; i < vsi->num_queue_pairs; i++) {
2056 u16 unused;
2057
2058 /* clone ring and setup updated count */
2059 rx_rings[i] = *vsi->rx_rings[i];
2060 rx_rings[i].count = new_rx_count;
2061 /* the desc and bi pointers will be reallocated in the
2062 * setup call
2063 */
2064 rx_rings[i].desc = NULL;
2065 rx_rings[i].rx_bi = NULL;
2066 /* Clear cloned XDP RX-queue info before setup call */
2067 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2068 /* this is to allow wr32 to have something to write to
2069 * during early allocation of Rx buffers
2070 */
2071 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2072 err = i40e_setup_rx_descriptors(&rx_rings[i]);
2073 if (err)
2074 goto rx_unwind;
2075 err = i40e_alloc_rx_bi(&rx_rings[i]);
2076 if (err)
2077 goto rx_unwind;
2078
2079 /* now allocate the Rx buffers to make sure the OS
2080 * has enough memory, any failure here means abort
2081 */
2082 unused = I40E_DESC_UNUSED(&rx_rings[i]);
2083 err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2084rx_unwind:
2085 if (err) {
2086 do {
2087 i40e_free_rx_resources(&rx_rings[i]);
2088 } while (i--);
2089 kfree(rx_rings);
2090 rx_rings = NULL;
2091
2092 goto free_tx;
2093 }
2094 }
2095 }
2096
2097 /* Bring interface down, copy in the new ring info,
2098 * then restore the interface
2099 */
2100 i40e_down(vsi);
2101
2102 if (tx_rings) {
2103 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2104 if (i40e_active_tx_ring_index(vsi, i)) {
2105 i40e_free_tx_resources(vsi->tx_rings[i]);
2106 *vsi->tx_rings[i] = tx_rings[i];
2107 }
2108 }
2109 kfree(tx_rings);
2110 tx_rings = NULL;
2111 }
2112
2113 if (rx_rings) {
2114 for (i = 0; i < vsi->num_queue_pairs; i++) {
2115 i40e_free_rx_resources(vsi->rx_rings[i]);
2116 /* get the real tail offset */
2117 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2118 /* this is to fake out the allocation routine
2119 * into thinking it has to realloc everything
2120 * but the recycling logic will let us re-use
2121 * the buffers allocated above
2122 */
2123 rx_rings[i].next_to_use = 0;
2124 rx_rings[i].next_to_clean = 0;
2125 rx_rings[i].next_to_alloc = 0;
2126 /* do a struct copy */
2127 *vsi->rx_rings[i] = rx_rings[i];
2128 }
2129 kfree(rx_rings);
2130 rx_rings = NULL;
2131 }
2132
2133 vsi->num_tx_desc = new_tx_count;
2134 vsi->num_rx_desc = new_rx_count;
2135 i40e_up(vsi);
2136
2137free_tx:
2138 /* error cleanup if the Rx allocations failed after getting Tx */
2139 if (tx_rings) {
2140 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2141 if (i40e_active_tx_ring_index(vsi, i))
2142 i40e_free_tx_resources(vsi->tx_rings[i]);
2143 }
2144 kfree(tx_rings);
2145 tx_rings = NULL;
2146 }
2147
2148done:
2149 clear_bit(__I40E_CONFIG_BUSY, pf->state);
2150
2151 return err;
2152}
2153
2154/**
2155 * i40e_get_stats_count - return the stats count for a device
2156 * @netdev: the netdev to return the count for
2157 *
2158 * Returns the total number of statistics for this netdev. Note that even
2159 * though this is a function, it is required that the count for a specific
2160 * netdev must never change. Basing the count on static values such as the
2161 * maximum number of queues or the device type is ok. However, the API for
2162 * obtaining stats is *not* safe against changes based on non-static
2163 * values such as the *current* number of queues, or runtime flags.
2164 *
2165 * If a statistic is not always enabled, return it as part of the count
2166 * anyways, always return its string, and report its value as zero.
2167 **/
2168static int i40e_get_stats_count(struct net_device *netdev)
2169{
2170 struct i40e_netdev_priv *np = netdev_priv(netdev);
2171 struct i40e_vsi *vsi = np->vsi;
2172 struct i40e_pf *pf = vsi->back;
2173 int stats_len;
2174
2175 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2176 stats_len = I40E_PF_STATS_LEN;
2177 else
2178 stats_len = I40E_VSI_STATS_LEN;
2179
2180 /* The number of stats reported for a given net_device must remain
2181 * constant throughout the life of that device.
2182 *
2183 * This is because the API for obtaining the size, strings, and stats
2184 * is spread out over three separate ethtool ioctls. There is no safe
2185 * way to lock the number of stats across these calls, so we must
2186 * assume that they will never change.
2187 *
2188 * Due to this, we report the maximum number of queues, even if not
2189 * every queue is currently configured. Since we always allocate
2190 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2191 * works because the num_tx_queues is set at device creation and never
2192 * changes.
2193 */
2194 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2195
2196 return stats_len;
2197}
2198
2199static int i40e_get_sset_count(struct net_device *netdev, int sset)
2200{
2201 struct i40e_netdev_priv *np = netdev_priv(netdev);
2202 struct i40e_vsi *vsi = np->vsi;
2203 struct i40e_pf *pf = vsi->back;
2204
2205 switch (sset) {
2206 case ETH_SS_TEST:
2207 return I40E_TEST_LEN;
2208 case ETH_SS_STATS:
2209 return i40e_get_stats_count(netdev);
2210 case ETH_SS_PRIV_FLAGS:
2211 return I40E_PRIV_FLAGS_STR_LEN +
2212 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2213 default:
2214 return -EOPNOTSUPP;
2215 }
2216}
2217
2218/**
2219 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2220 * @pf: the PF device structure
2221 * @i: the priority value to copy
2222 *
2223 * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2224 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2225 * of the PFC stats for the given priority.
2226 **/
2227static inline struct i40e_pfc_stats
2228i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2229{
2230#define I40E_GET_PFC_STAT(stat, priority) \
2231 .stat = pf->stats.stat[priority]
2232
2233 struct i40e_pfc_stats pfc = {
2234 I40E_GET_PFC_STAT(priority_xon_rx, i),
2235 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2236 I40E_GET_PFC_STAT(priority_xon_tx, i),
2237 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2238 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2239 };
2240 return pfc;
2241}
2242
2243/**
2244 * i40e_get_ethtool_stats - copy stat values into supplied buffer
2245 * @netdev: the netdev to collect stats for
2246 * @stats: ethtool stats command structure
2247 * @data: ethtool supplied buffer
2248 *
2249 * Copy the stats values for this netdev into the buffer. Expects data to be
2250 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2251 * statistics must be copied in a static order, and the count must not change
2252 * for a given netdev. See i40e_get_stats_count for more details.
2253 *
2254 * If a statistic is not currently valid (such as a disabled queue), this
2255 * function reports its value as zero.
2256 **/
2257static void i40e_get_ethtool_stats(struct net_device *netdev,
2258 struct ethtool_stats *stats, u64 *data)
2259{
2260 struct i40e_netdev_priv *np = netdev_priv(netdev);
2261 struct i40e_vsi *vsi = np->vsi;
2262 struct i40e_pf *pf = vsi->back;
2263 struct i40e_veb *veb = NULL;
2264 unsigned int i;
2265 bool veb_stats;
2266 u64 *p = data;
2267
2268 i40e_update_stats(vsi);
2269
2270 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2271 i40e_gstrings_net_stats);
2272
2273 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2274
2275 rcu_read_lock();
2276 for (i = 0; i < netdev->num_tx_queues; i++) {
2277 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2278 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2279 }
2280 rcu_read_unlock();
2281
2282 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2283 goto check_data_pointer;
2284
2285 veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2286 (pf->lan_veb < I40E_MAX_VEB) &&
2287 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2288
2289 if (veb_stats) {
2290 veb = pf->veb[pf->lan_veb];
2291 i40e_update_veb_stats(veb);
2292 }
2293
2294 /* If veb stats aren't enabled, pass NULL instead of the veb so that
2295 * we initialize stats to zero and update the data pointer
2296 * intelligently
2297 */
2298 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2299 i40e_gstrings_veb_stats);
2300
2301 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2302 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2303 i40e_gstrings_veb_tc_stats);
2304
2305 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2306
2307 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2308 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2309
2310 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2311 }
2312
2313check_data_pointer:
2314 WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2315 "ethtool stats count mismatch!");
2316}
2317
2318/**
2319 * i40e_get_stat_strings - copy stat strings into supplied buffer
2320 * @netdev: the netdev to collect strings for
2321 * @data: supplied buffer to copy strings into
2322 *
2323 * Copy the strings related to stats for this netdev. Expects data to be
2324 * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2325 * strings must be copied in a static order and the total count must not
2326 * change for a given netdev. See i40e_get_stats_count for more details.
2327 **/
2328static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2329{
2330 struct i40e_netdev_priv *np = netdev_priv(netdev);
2331 struct i40e_vsi *vsi = np->vsi;
2332 struct i40e_pf *pf = vsi->back;
2333 unsigned int i;
2334 u8 *p = data;
2335
2336 i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2337
2338 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2339
2340 for (i = 0; i < netdev->num_tx_queues; i++) {
2341 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2342 "tx", i);
2343 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2344 "rx", i);
2345 }
2346
2347 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2348 goto check_data_pointer;
2349
2350 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2351
2352 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2353 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2354
2355 i40e_add_stat_strings(&data, i40e_gstrings_stats);
2356
2357 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2358 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2359
2360check_data_pointer:
2361 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2362 "stat strings count mismatch!");
2363}
2364
2365static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2366{
2367 struct i40e_netdev_priv *np = netdev_priv(netdev);
2368 struct i40e_vsi *vsi = np->vsi;
2369 struct i40e_pf *pf = vsi->back;
2370 char *p = (char *)data;
2371 unsigned int i;
2372
2373 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
2374 snprintf(p, ETH_GSTRING_LEN, "%s",
2375 i40e_gstrings_priv_flags[i].flag_string);
2376 p += ETH_GSTRING_LEN;
2377 }
2378 if (pf->hw.pf_id != 0)
2379 return;
2380 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
2381 snprintf(p, ETH_GSTRING_LEN, "%s",
2382 i40e_gl_gstrings_priv_flags[i].flag_string);
2383 p += ETH_GSTRING_LEN;
2384 }
2385}
2386
2387static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2388 u8 *data)
2389{
2390 switch (stringset) {
2391 case ETH_SS_TEST:
2392 memcpy(data, i40e_gstrings_test,
2393 I40E_TEST_LEN * ETH_GSTRING_LEN);
2394 break;
2395 case ETH_SS_STATS:
2396 i40e_get_stat_strings(netdev, data);
2397 break;
2398 case ETH_SS_PRIV_FLAGS:
2399 i40e_get_priv_flag_strings(netdev, data);
2400 break;
2401 default:
2402 break;
2403 }
2404}
2405
2406static int i40e_get_ts_info(struct net_device *dev,
2407 struct ethtool_ts_info *info)
2408{
2409 struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2410
2411 /* only report HW timestamping if PTP is enabled */
2412 if (!(pf->flags & I40E_FLAG_PTP))
2413 return ethtool_op_get_ts_info(dev, info);
2414
2415 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2416 SOF_TIMESTAMPING_RX_SOFTWARE |
2417 SOF_TIMESTAMPING_SOFTWARE |
2418 SOF_TIMESTAMPING_TX_HARDWARE |
2419 SOF_TIMESTAMPING_RX_HARDWARE |
2420 SOF_TIMESTAMPING_RAW_HARDWARE;
2421
2422 if (pf->ptp_clock)
2423 info->phc_index = ptp_clock_index(pf->ptp_clock);
2424 else
2425 info->phc_index = -1;
2426
2427 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2428
2429 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2430 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2431 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2432 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2433
2434 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2435 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2436 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2437 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2438 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2439 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2440 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2441 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2442 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2443
2444 return 0;
2445}
2446
2447static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2448{
2449 struct i40e_netdev_priv *np = netdev_priv(netdev);
2450 struct i40e_pf *pf = np->vsi->back;
2451 i40e_status status;
2452 bool link_up = false;
2453
2454 netif_info(pf, hw, netdev, "link test\n");
2455 status = i40e_get_link_status(&pf->hw, &link_up);
2456 if (status) {
2457 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2458 *data = 1;
2459 return *data;
2460 }
2461
2462 if (link_up)
2463 *data = 0;
2464 else
2465 *data = 1;
2466
2467 return *data;
2468}
2469
2470static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2471{
2472 struct i40e_netdev_priv *np = netdev_priv(netdev);
2473 struct i40e_pf *pf = np->vsi->back;
2474
2475 netif_info(pf, hw, netdev, "register test\n");
2476 *data = i40e_diag_reg_test(&pf->hw);
2477
2478 return *data;
2479}
2480
2481static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2482{
2483 struct i40e_netdev_priv *np = netdev_priv(netdev);
2484 struct i40e_pf *pf = np->vsi->back;
2485
2486 netif_info(pf, hw, netdev, "eeprom test\n");
2487 *data = i40e_diag_eeprom_test(&pf->hw);
2488
2489 /* forcebly clear the NVM Update state machine */
2490 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2491
2492 return *data;
2493}
2494
2495static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2496{
2497 struct i40e_netdev_priv *np = netdev_priv(netdev);
2498 struct i40e_pf *pf = np->vsi->back;
2499 u16 swc_old = pf->sw_int_count;
2500
2501 netif_info(pf, hw, netdev, "interrupt test\n");
2502 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2503 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2504 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2505 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2506 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2507 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2508 usleep_range(1000, 2000);
2509 *data = (swc_old == pf->sw_int_count);
2510
2511 return *data;
2512}
2513
2514static inline bool i40e_active_vfs(struct i40e_pf *pf)
2515{
2516 struct i40e_vf *vfs = pf->vf;
2517 int i;
2518
2519 for (i = 0; i < pf->num_alloc_vfs; i++)
2520 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2521 return true;
2522 return false;
2523}
2524
2525static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2526{
2527 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2528}
2529
2530static void i40e_diag_test(struct net_device *netdev,
2531 struct ethtool_test *eth_test, u64 *data)
2532{
2533 struct i40e_netdev_priv *np = netdev_priv(netdev);
2534 bool if_running = netif_running(netdev);
2535 struct i40e_pf *pf = np->vsi->back;
2536
2537 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2538 /* Offline tests */
2539 netif_info(pf, drv, netdev, "offline testing starting\n");
2540
2541 set_bit(__I40E_TESTING, pf->state);
2542
2543 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2544 dev_warn(&pf->pdev->dev,
2545 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2546 data[I40E_ETH_TEST_REG] = 1;
2547 data[I40E_ETH_TEST_EEPROM] = 1;
2548 data[I40E_ETH_TEST_INTR] = 1;
2549 data[I40E_ETH_TEST_LINK] = 1;
2550 eth_test->flags |= ETH_TEST_FL_FAILED;
2551 clear_bit(__I40E_TESTING, pf->state);
2552 goto skip_ol_tests;
2553 }
2554
2555 /* If the device is online then take it offline */
2556 if (if_running)
2557 /* indicate we're in test mode */
2558 i40e_close(netdev);
2559 else
2560 /* This reset does not affect link - if it is
2561 * changed to a type of reset that does affect
2562 * link then the following link test would have
2563 * to be moved to before the reset
2564 */
2565 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2566
2567 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2568 eth_test->flags |= ETH_TEST_FL_FAILED;
2569
2570 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2571 eth_test->flags |= ETH_TEST_FL_FAILED;
2572
2573 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2574 eth_test->flags |= ETH_TEST_FL_FAILED;
2575
2576 /* run reg test last, a reset is required after it */
2577 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2578 eth_test->flags |= ETH_TEST_FL_FAILED;
2579
2580 clear_bit(__I40E_TESTING, pf->state);
2581 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2582
2583 if (if_running)
2584 i40e_open(netdev);
2585 } else {
2586 /* Online tests */
2587 netif_info(pf, drv, netdev, "online testing starting\n");
2588
2589 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2590 eth_test->flags |= ETH_TEST_FL_FAILED;
2591
2592 /* Offline only tests, not run in online; pass by default */
2593 data[I40E_ETH_TEST_REG] = 0;
2594 data[I40E_ETH_TEST_EEPROM] = 0;
2595 data[I40E_ETH_TEST_INTR] = 0;
2596 }
2597
2598skip_ol_tests:
2599
2600 netif_info(pf, drv, netdev, "testing finished\n");
2601}
2602
2603static void i40e_get_wol(struct net_device *netdev,
2604 struct ethtool_wolinfo *wol)
2605{
2606 struct i40e_netdev_priv *np = netdev_priv(netdev);
2607 struct i40e_pf *pf = np->vsi->back;
2608 struct i40e_hw *hw = &pf->hw;
2609 u16 wol_nvm_bits;
2610
2611 /* NVM bit on means WoL disabled for the port */
2612 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2613 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2614 wol->supported = 0;
2615 wol->wolopts = 0;
2616 } else {
2617 wol->supported = WAKE_MAGIC;
2618 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2619 }
2620}
2621
2622/**
2623 * i40e_set_wol - set the WakeOnLAN configuration
2624 * @netdev: the netdev in question
2625 * @wol: the ethtool WoL setting data
2626 **/
2627static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2628{
2629 struct i40e_netdev_priv *np = netdev_priv(netdev);
2630 struct i40e_pf *pf = np->vsi->back;
2631 struct i40e_vsi *vsi = np->vsi;
2632 struct i40e_hw *hw = &pf->hw;
2633 u16 wol_nvm_bits;
2634
2635 /* WoL not supported if this isn't the controlling PF on the port */
2636 if (hw->partition_id != 1) {
2637 i40e_partition_setting_complaint(pf);
2638 return -EOPNOTSUPP;
2639 }
2640
2641 if (vsi != pf->vsi[pf->lan_vsi])
2642 return -EOPNOTSUPP;
2643
2644 /* NVM bit on means WoL disabled for the port */
2645 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2646 if (BIT(hw->port) & wol_nvm_bits)
2647 return -EOPNOTSUPP;
2648
2649 /* only magic packet is supported */
2650 if (wol->wolopts & ~WAKE_MAGIC)
2651 return -EOPNOTSUPP;
2652
2653 /* is this a new value? */
2654 if (pf->wol_en != !!wol->wolopts) {
2655 pf->wol_en = !!wol->wolopts;
2656 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2657 }
2658
2659 return 0;
2660}
2661
2662static int i40e_set_phys_id(struct net_device *netdev,
2663 enum ethtool_phys_id_state state)
2664{
2665 struct i40e_netdev_priv *np = netdev_priv(netdev);
2666 i40e_status ret = 0;
2667 struct i40e_pf *pf = np->vsi->back;
2668 struct i40e_hw *hw = &pf->hw;
2669 int blink_freq = 2;
2670 u16 temp_status;
2671
2672 switch (state) {
2673 case ETHTOOL_ID_ACTIVE:
2674 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2675 pf->led_status = i40e_led_get(hw);
2676 } else {
2677 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2678 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2679 NULL);
2680 ret = i40e_led_get_phy(hw, &temp_status,
2681 &pf->phy_led_val);
2682 pf->led_status = temp_status;
2683 }
2684 return blink_freq;
2685 case ETHTOOL_ID_ON:
2686 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2687 i40e_led_set(hw, 0xf, false);
2688 else
2689 ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2690 break;
2691 case ETHTOOL_ID_OFF:
2692 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2693 i40e_led_set(hw, 0x0, false);
2694 else
2695 ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2696 break;
2697 case ETHTOOL_ID_INACTIVE:
2698 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2699 i40e_led_set(hw, pf->led_status, false);
2700 } else {
2701 ret = i40e_led_set_phy(hw, false, pf->led_status,
2702 (pf->phy_led_val |
2703 I40E_PHY_LED_MODE_ORIG));
2704 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2705 i40e_aq_set_phy_debug(hw, 0, NULL);
2706 }
2707 break;
2708 default:
2709 break;
2710 }
2711 if (ret)
2712 return -ENOENT;
2713 else
2714 return 0;
2715}
2716
2717/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2718 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2719 * 125us (8000 interrupts per second) == ITR(62)
2720 */
2721
2722/**
2723 * __i40e_get_coalesce - get per-queue coalesce settings
2724 * @netdev: the netdev to check
2725 * @ec: ethtool coalesce data structure
2726 * @queue: which queue to pick
2727 *
2728 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2729 * are per queue. If queue is <0 then we default to queue 0 as the
2730 * representative value.
2731 **/
2732static int __i40e_get_coalesce(struct net_device *netdev,
2733 struct ethtool_coalesce *ec,
2734 int queue)
2735{
2736 struct i40e_netdev_priv *np = netdev_priv(netdev);
2737 struct i40e_ring *rx_ring, *tx_ring;
2738 struct i40e_vsi *vsi = np->vsi;
2739
2740 ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2741 ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2742
2743 /* rx and tx usecs has per queue value. If user doesn't specify the
2744 * queue, return queue 0's value to represent.
2745 */
2746 if (queue < 0)
2747 queue = 0;
2748 else if (queue >= vsi->num_queue_pairs)
2749 return -EINVAL;
2750
2751 rx_ring = vsi->rx_rings[queue];
2752 tx_ring = vsi->tx_rings[queue];
2753
2754 if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2755 ec->use_adaptive_rx_coalesce = 1;
2756
2757 if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2758 ec->use_adaptive_tx_coalesce = 1;
2759
2760 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2761 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2762
2763 /* we use the _usecs_high to store/set the interrupt rate limit
2764 * that the hardware supports, that almost but not quite
2765 * fits the original intent of the ethtool variable,
2766 * the rx_coalesce_usecs_high limits total interrupts
2767 * per second from both tx/rx sources.
2768 */
2769 ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2770 ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2771
2772 return 0;
2773}
2774
2775/**
2776 * i40e_get_coalesce - get a netdev's coalesce settings
2777 * @netdev: the netdev to check
2778 * @ec: ethtool coalesce data structure
2779 *
2780 * Gets the coalesce settings for a particular netdev. Note that if user has
2781 * modified per-queue settings, this only guarantees to represent queue 0. See
2782 * __i40e_get_coalesce for more details.
2783 **/
2784static int i40e_get_coalesce(struct net_device *netdev,
2785 struct ethtool_coalesce *ec)
2786{
2787 return __i40e_get_coalesce(netdev, ec, -1);
2788}
2789
2790/**
2791 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2792 * @netdev: netdev structure
2793 * @ec: ethtool's coalesce settings
2794 * @queue: the particular queue to read
2795 *
2796 * Will read a specific queue's coalesce settings
2797 **/
2798static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2799 struct ethtool_coalesce *ec)
2800{
2801 return __i40e_get_coalesce(netdev, ec, queue);
2802}
2803
2804/**
2805 * i40e_set_itr_per_queue - set ITR values for specific queue
2806 * @vsi: the VSI to set values for
2807 * @ec: coalesce settings from ethtool
2808 * @queue: the queue to modify
2809 *
2810 * Change the ITR settings for a specific queue.
2811 **/
2812static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2813 struct ethtool_coalesce *ec,
2814 int queue)
2815{
2816 struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2817 struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2818 struct i40e_pf *pf = vsi->back;
2819 struct i40e_hw *hw = &pf->hw;
2820 struct i40e_q_vector *q_vector;
2821 u16 intrl;
2822
2823 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2824
2825 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2826 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2827
2828 if (ec->use_adaptive_rx_coalesce)
2829 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2830 else
2831 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2832
2833 if (ec->use_adaptive_tx_coalesce)
2834 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2835 else
2836 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2837
2838 q_vector = rx_ring->q_vector;
2839 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2840
2841 q_vector = tx_ring->q_vector;
2842 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2843
2844 /* The interrupt handler itself will take care of programming
2845 * the Tx and Rx ITR values based on the values we have entered
2846 * into the q_vector, no need to write the values now.
2847 */
2848
2849 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2850 i40e_flush(hw);
2851}
2852
2853/**
2854 * __i40e_set_coalesce - set coalesce settings for particular queue
2855 * @netdev: the netdev to change
2856 * @ec: ethtool coalesce settings
2857 * @queue: the queue to change
2858 *
2859 * Sets the coalesce settings for a particular queue.
2860 **/
2861static int __i40e_set_coalesce(struct net_device *netdev,
2862 struct ethtool_coalesce *ec,
2863 int queue)
2864{
2865 struct i40e_netdev_priv *np = netdev_priv(netdev);
2866 u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2867 struct i40e_vsi *vsi = np->vsi;
2868 struct i40e_pf *pf = vsi->back;
2869 int i;
2870
2871 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2872 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2873
2874 if (queue < 0) {
2875 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
2876 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
2877 } else if (queue < vsi->num_queue_pairs) {
2878 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
2879 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
2880 } else {
2881 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2882 vsi->num_queue_pairs - 1);
2883 return -EINVAL;
2884 }
2885
2886 cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2887 cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2888
2889 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2890 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2891 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2892 return -EINVAL;
2893 }
2894
2895 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2896 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2897 INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2898 return -EINVAL;
2899 }
2900
2901 if (ec->rx_coalesce_usecs != cur_rx_itr &&
2902 ec->use_adaptive_rx_coalesce) {
2903 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2904 return -EINVAL;
2905 }
2906
2907 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
2908 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2909 return -EINVAL;
2910 }
2911
2912 if (ec->tx_coalesce_usecs != cur_tx_itr &&
2913 ec->use_adaptive_tx_coalesce) {
2914 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2915 return -EINVAL;
2916 }
2917
2918 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
2919 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2920 return -EINVAL;
2921 }
2922
2923 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2924 ec->rx_coalesce_usecs = I40E_MIN_ITR;
2925
2926 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2927 ec->tx_coalesce_usecs = I40E_MIN_ITR;
2928
2929 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2930 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2931 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2932 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2933 vsi->int_rate_limit);
2934 }
2935
2936 /* rx and tx usecs has per queue value. If user doesn't specify the
2937 * queue, apply to all queues.
2938 */
2939 if (queue < 0) {
2940 for (i = 0; i < vsi->num_queue_pairs; i++)
2941 i40e_set_itr_per_queue(vsi, ec, i);
2942 } else {
2943 i40e_set_itr_per_queue(vsi, ec, queue);
2944 }
2945
2946 return 0;
2947}
2948
2949/**
2950 * i40e_set_coalesce - set coalesce settings for every queue on the netdev
2951 * @netdev: the netdev to change
2952 * @ec: ethtool coalesce settings
2953 *
2954 * This will set each queue to the same coalesce settings.
2955 **/
2956static int i40e_set_coalesce(struct net_device *netdev,
2957 struct ethtool_coalesce *ec)
2958{
2959 return __i40e_set_coalesce(netdev, ec, -1);
2960}
2961
2962/**
2963 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
2964 * @netdev: the netdev to change
2965 * @ec: ethtool's coalesce settings
2966 * @queue: the queue to change
2967 *
2968 * Sets the specified queue's coalesce settings.
2969 **/
2970static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2971 struct ethtool_coalesce *ec)
2972{
2973 return __i40e_set_coalesce(netdev, ec, queue);
2974}
2975
2976/**
2977 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2978 * @pf: pointer to the physical function struct
2979 * @cmd: ethtool rxnfc command
2980 *
2981 * Returns Success if the flow is supported, else Invalid Input.
2982 **/
2983static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2984{
2985 struct i40e_hw *hw = &pf->hw;
2986 u8 flow_pctype = 0;
2987 u64 i_set = 0;
2988
2989 cmd->data = 0;
2990
2991 switch (cmd->flow_type) {
2992 case TCP_V4_FLOW:
2993 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2994 break;
2995 case UDP_V4_FLOW:
2996 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2997 break;
2998 case TCP_V6_FLOW:
2999 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3000 break;
3001 case UDP_V6_FLOW:
3002 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3003 break;
3004 case SCTP_V4_FLOW:
3005 case AH_ESP_V4_FLOW:
3006 case AH_V4_FLOW:
3007 case ESP_V4_FLOW:
3008 case IPV4_FLOW:
3009 case SCTP_V6_FLOW:
3010 case AH_ESP_V6_FLOW:
3011 case AH_V6_FLOW:
3012 case ESP_V6_FLOW:
3013 case IPV6_FLOW:
3014 /* Default is src/dest for IP, no matter the L4 hashing */
3015 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3016 break;
3017 default:
3018 return -EINVAL;
3019 }
3020
3021 /* Read flow based hash input set register */
3022 if (flow_pctype) {
3023 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3024 flow_pctype)) |
3025 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3026 flow_pctype)) << 32);
3027 }
3028
3029 /* Process bits of hash input set */
3030 if (i_set) {
3031 if (i_set & I40E_L4_SRC_MASK)
3032 cmd->data |= RXH_L4_B_0_1;
3033 if (i_set & I40E_L4_DST_MASK)
3034 cmd->data |= RXH_L4_B_2_3;
3035
3036 if (cmd->flow_type == TCP_V4_FLOW ||
3037 cmd->flow_type == UDP_V4_FLOW) {
3038 if (i_set & I40E_L3_SRC_MASK)
3039 cmd->data |= RXH_IP_SRC;
3040 if (i_set & I40E_L3_DST_MASK)
3041 cmd->data |= RXH_IP_DST;
3042 } else if (cmd->flow_type == TCP_V6_FLOW ||
3043 cmd->flow_type == UDP_V6_FLOW) {
3044 if (i_set & I40E_L3_V6_SRC_MASK)
3045 cmd->data |= RXH_IP_SRC;
3046 if (i_set & I40E_L3_V6_DST_MASK)
3047 cmd->data |= RXH_IP_DST;
3048 }
3049 }
3050
3051 return 0;
3052}
3053
3054/**
3055 * i40e_check_mask - Check whether a mask field is set
3056 * @mask: the full mask value
3057 * @field: mask of the field to check
3058 *
3059 * If the given mask is fully set, return positive value. If the mask for the
3060 * field is fully unset, return zero. Otherwise return a negative error code.
3061 **/
3062static int i40e_check_mask(u64 mask, u64 field)
3063{
3064 u64 value = mask & field;
3065
3066 if (value == field)
3067 return 1;
3068 else if (!value)
3069 return 0;
3070 else
3071 return -1;
3072}
3073
3074/**
3075 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3076 * @fsp: pointer to rx flow specification
3077 * @data: pointer to userdef data structure for storage
3078 *
3079 * Read the user-defined data and deconstruct the value into a structure. No
3080 * other code should read the user-defined data, so as to ensure that every
3081 * place consistently reads the value correctly.
3082 *
3083 * The user-defined field is a 64bit Big Endian format value, which we
3084 * deconstruct by reading bits or bit fields from it. Single bit flags shall
3085 * be defined starting from the highest bits, while small bit field values
3086 * shall be defined starting from the lowest bits.
3087 *
3088 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3089 * and the filter should be rejected. The data structure will always be
3090 * modified even if FLOW_EXT is not set.
3091 *
3092 **/
3093static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3094 struct i40e_rx_flow_userdef *data)
3095{
3096 u64 value, mask;
3097 int valid;
3098
3099 /* Zero memory first so it's always consistent. */
3100 memset(data, 0, sizeof(*data));
3101
3102 if (!(fsp->flow_type & FLOW_EXT))
3103 return 0;
3104
3105 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3106 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3107
3108#define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0)
3109#define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16)
3110#define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0)
3111
3112 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3113 if (valid < 0) {
3114 return -EINVAL;
3115 } else if (valid) {
3116 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3117 data->flex_offset =
3118 (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3119 data->flex_filter = true;
3120 }
3121
3122 return 0;
3123}
3124
3125/**
3126 * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3127 * @fsp: pointer to rx_flow specification
3128 * @data: pointer to return userdef data
3129 *
3130 * Reads the userdef data structure and properly fills in the user defined
3131 * fields of the rx_flow_spec.
3132 **/
3133static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3134 struct i40e_rx_flow_userdef *data)
3135{
3136 u64 value = 0, mask = 0;
3137
3138 if (data->flex_filter) {
3139 value |= data->flex_word;
3140 value |= (u64)data->flex_offset << 16;
3141 mask |= I40E_USERDEF_FLEX_FILTER;
3142 }
3143
3144 if (value || mask)
3145 fsp->flow_type |= FLOW_EXT;
3146
3147 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3148 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3149}
3150
3151/**
3152 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3153 * @pf: Pointer to the physical function struct
3154 * @cmd: The command to get or set Rx flow classification rules
3155 * @rule_locs: Array of used rule locations
3156 *
3157 * This function populates both the total and actual rule count of
3158 * the ethtool flow classification command
3159 *
3160 * Returns 0 on success or -EMSGSIZE if entry not found
3161 **/
3162static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3163 struct ethtool_rxnfc *cmd,
3164 u32 *rule_locs)
3165{
3166 struct i40e_fdir_filter *rule;
3167 struct hlist_node *node2;
3168 int cnt = 0;
3169
3170 /* report total rule count */
3171 cmd->data = i40e_get_fd_cnt_all(pf);
3172
3173 hlist_for_each_entry_safe(rule, node2,
3174 &pf->fdir_filter_list, fdir_node) {
3175 if (cnt == cmd->rule_cnt)
3176 return -EMSGSIZE;
3177
3178 rule_locs[cnt] = rule->fd_id;
3179 cnt++;
3180 }
3181
3182 cmd->rule_cnt = cnt;
3183
3184 return 0;
3185}
3186
3187/**
3188 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3189 * @pf: Pointer to the physical function struct
3190 * @cmd: The command to get or set Rx flow classification rules
3191 *
3192 * This function looks up a filter based on the Rx flow classification
3193 * command and fills the flow spec info for it if found
3194 *
3195 * Returns 0 on success or -EINVAL if filter not found
3196 **/
3197static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3198 struct ethtool_rxnfc *cmd)
3199{
3200 struct ethtool_rx_flow_spec *fsp =
3201 (struct ethtool_rx_flow_spec *)&cmd->fs;
3202 struct i40e_rx_flow_userdef userdef = {0};
3203 struct i40e_fdir_filter *rule = NULL;
3204 struct hlist_node *node2;
3205 u64 input_set;
3206 u16 index;
3207
3208 hlist_for_each_entry_safe(rule, node2,
3209 &pf->fdir_filter_list, fdir_node) {
3210 if (fsp->location <= rule->fd_id)
3211 break;
3212 }
3213
3214 if (!rule || fsp->location != rule->fd_id)
3215 return -EINVAL;
3216
3217 fsp->flow_type = rule->flow_type;
3218 if (fsp->flow_type == IP_USER_FLOW) {
3219 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3220 fsp->h_u.usr_ip4_spec.proto = 0;
3221 fsp->m_u.usr_ip4_spec.proto = 0;
3222 }
3223
3224 /* Reverse the src and dest notion, since the HW views them from
3225 * Tx perspective where as the user expects it from Rx filter view.
3226 */
3227 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3228 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3229 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3230 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3231
3232 switch (rule->flow_type) {
3233 case SCTP_V4_FLOW:
3234 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3235 break;
3236 case TCP_V4_FLOW:
3237 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3238 break;
3239 case UDP_V4_FLOW:
3240 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3241 break;
3242 case IP_USER_FLOW:
3243 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3244 break;
3245 default:
3246 /* If we have stored a filter with a flow type not listed here
3247 * it is almost certainly a driver bug. WARN(), and then
3248 * assign the input_set as if all fields are enabled to avoid
3249 * reading unassigned memory.
3250 */
3251 WARN(1, "Missing input set index for flow_type %d\n",
3252 rule->flow_type);
3253 input_set = 0xFFFFFFFFFFFFFFFFULL;
3254 goto no_input_set;
3255 }
3256
3257 input_set = i40e_read_fd_input_set(pf, index);
3258
3259no_input_set:
3260 if (input_set & I40E_L3_SRC_MASK)
3261 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3262
3263 if (input_set & I40E_L3_DST_MASK)
3264 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3265
3266 if (input_set & I40E_L4_SRC_MASK)
3267 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3268
3269 if (input_set & I40E_L4_DST_MASK)
3270 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3271
3272 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3273 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3274 else
3275 fsp->ring_cookie = rule->q_index;
3276
3277 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3278 struct i40e_vsi *vsi;
3279
3280 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3281 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3282 /* VFs are zero-indexed by the driver, but ethtool
3283 * expects them to be one-indexed, so add one here
3284 */
3285 u64 ring_vf = vsi->vf_id + 1;
3286
3287 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3288 fsp->ring_cookie |= ring_vf;
3289 }
3290 }
3291
3292 if (rule->flex_filter) {
3293 userdef.flex_filter = true;
3294 userdef.flex_word = be16_to_cpu(rule->flex_word);
3295 userdef.flex_offset = rule->flex_offset;
3296 }
3297
3298 i40e_fill_rx_flow_user_data(fsp, &userdef);
3299
3300 return 0;
3301}
3302
3303/**
3304 * i40e_get_rxnfc - command to get RX flow classification rules
3305 * @netdev: network interface device structure
3306 * @cmd: ethtool rxnfc command
3307 * @rule_locs: pointer to store rule data
3308 *
3309 * Returns Success if the command is supported.
3310 **/
3311static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3312 u32 *rule_locs)
3313{
3314 struct i40e_netdev_priv *np = netdev_priv(netdev);
3315 struct i40e_vsi *vsi = np->vsi;
3316 struct i40e_pf *pf = vsi->back;
3317 int ret = -EOPNOTSUPP;
3318
3319 switch (cmd->cmd) {
3320 case ETHTOOL_GRXRINGS:
3321 cmd->data = vsi->rss_size;
3322 ret = 0;
3323 break;
3324 case ETHTOOL_GRXFH:
3325 ret = i40e_get_rss_hash_opts(pf, cmd);
3326 break;
3327 case ETHTOOL_GRXCLSRLCNT:
3328 cmd->rule_cnt = pf->fdir_pf_active_filters;
3329 /* report total rule count */
3330 cmd->data = i40e_get_fd_cnt_all(pf);
3331 ret = 0;
3332 break;
3333 case ETHTOOL_GRXCLSRULE:
3334 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3335 break;
3336 case ETHTOOL_GRXCLSRLALL:
3337 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3338 break;
3339 default:
3340 break;
3341 }
3342
3343 return ret;
3344}
3345
3346/**
3347 * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3348 * @nfc: pointer to user request
3349 * @i_setc: bits currently set
3350 *
3351 * Returns value of bits to be set per user request
3352 **/
3353static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
3354{
3355 u64 i_set = i_setc;
3356 u64 src_l3 = 0, dst_l3 = 0;
3357
3358 if (nfc->data & RXH_L4_B_0_1)
3359 i_set |= I40E_L4_SRC_MASK;
3360 else
3361 i_set &= ~I40E_L4_SRC_MASK;
3362 if (nfc->data & RXH_L4_B_2_3)
3363 i_set |= I40E_L4_DST_MASK;
3364 else
3365 i_set &= ~I40E_L4_DST_MASK;
3366
3367 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3368 src_l3 = I40E_L3_V6_SRC_MASK;
3369 dst_l3 = I40E_L3_V6_DST_MASK;
3370 } else if (nfc->flow_type == TCP_V4_FLOW ||
3371 nfc->flow_type == UDP_V4_FLOW) {
3372 src_l3 = I40E_L3_SRC_MASK;
3373 dst_l3 = I40E_L3_DST_MASK;
3374 } else {
3375 /* Any other flow type are not supported here */
3376 return i_set;
3377 }
3378
3379 if (nfc->data & RXH_IP_SRC)
3380 i_set |= src_l3;
3381 else
3382 i_set &= ~src_l3;
3383 if (nfc->data & RXH_IP_DST)
3384 i_set |= dst_l3;
3385 else
3386 i_set &= ~dst_l3;
3387
3388 return i_set;
3389}
3390
3391/**
3392 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3393 * @pf: pointer to the physical function struct
3394 * @nfc: ethtool rxnfc command
3395 *
3396 * Returns Success if the flow input set is supported.
3397 **/
3398static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3399{
3400 struct i40e_hw *hw = &pf->hw;
3401 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3402 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3403 u8 flow_pctype = 0;
3404 u64 i_set, i_setc;
3405
3406 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3407 dev_err(&pf->pdev->dev,
3408 "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3409 return -EOPNOTSUPP;
3410 }
3411
3412 /* RSS does not support anything other than hashing
3413 * to queues on src and dst IPs and ports
3414 */
3415 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3416 RXH_L4_B_0_1 | RXH_L4_B_2_3))
3417 return -EINVAL;
3418
3419 switch (nfc->flow_type) {
3420 case TCP_V4_FLOW:
3421 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3422 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3423 hena |=
3424 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3425 break;
3426 case TCP_V6_FLOW:
3427 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3428 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3429 hena |=
3430 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3431 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3432 hena |=
3433 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3434 break;
3435 case UDP_V4_FLOW:
3436 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3437 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3438 hena |=
3439 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
3440 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3441
3442 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3443 break;
3444 case UDP_V6_FLOW:
3445 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3446 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3447 hena |=
3448 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
3449 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3450
3451 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3452 break;
3453 case AH_ESP_V4_FLOW:
3454 case AH_V4_FLOW:
3455 case ESP_V4_FLOW:
3456 case SCTP_V4_FLOW:
3457 if ((nfc->data & RXH_L4_B_0_1) ||
3458 (nfc->data & RXH_L4_B_2_3))
3459 return -EINVAL;
3460 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3461 break;
3462 case AH_ESP_V6_FLOW:
3463 case AH_V6_FLOW:
3464 case ESP_V6_FLOW:
3465 case SCTP_V6_FLOW:
3466 if ((nfc->data & RXH_L4_B_0_1) ||
3467 (nfc->data & RXH_L4_B_2_3))
3468 return -EINVAL;
3469 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3470 break;
3471 case IPV4_FLOW:
3472 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3473 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3474 break;
3475 case IPV6_FLOW:
3476 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3477 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3478 break;
3479 default:
3480 return -EINVAL;
3481 }
3482
3483 if (flow_pctype) {
3484 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3485 flow_pctype)) |
3486 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3487 flow_pctype)) << 32);
3488 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3489 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3490 (u32)i_set);
3491 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3492 (u32)(i_set >> 32));
3493 hena |= BIT_ULL(flow_pctype);
3494 }
3495
3496 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3497 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3498 i40e_flush(hw);
3499
3500 return 0;
3501}
3502
3503/**
3504 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3505 * @vsi: Pointer to the targeted VSI
3506 * @input: The filter to update or NULL to indicate deletion
3507 * @sw_idx: Software index to the filter
3508 * @cmd: The command to get or set Rx flow classification rules
3509 *
3510 * This function updates (or deletes) a Flow Director entry from
3511 * the hlist of the corresponding PF
3512 *
3513 * Returns 0 on success
3514 **/
3515static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3516 struct i40e_fdir_filter *input,
3517 u16 sw_idx,
3518 struct ethtool_rxnfc *cmd)
3519{
3520 struct i40e_fdir_filter *rule, *parent;
3521 struct i40e_pf *pf = vsi->back;
3522 struct hlist_node *node2;
3523 int err = -EINVAL;
3524
3525 parent = NULL;
3526 rule = NULL;
3527
3528 hlist_for_each_entry_safe(rule, node2,
3529 &pf->fdir_filter_list, fdir_node) {
3530 /* hash found, or no matching entry */
3531 if (rule->fd_id >= sw_idx)
3532 break;
3533 parent = rule;
3534 }
3535
3536 /* if there is an old rule occupying our place remove it */
3537 if (rule && (rule->fd_id == sw_idx)) {
3538 /* Remove this rule, since we're either deleting it, or
3539 * replacing it.
3540 */
3541 err = i40e_add_del_fdir(vsi, rule, false);
3542 hlist_del(&rule->fdir_node);
3543 kfree(rule);
3544 pf->fdir_pf_active_filters--;
3545 }
3546
3547 /* If we weren't given an input, this is a delete, so just return the
3548 * error code indicating if there was an entry at the requested slot
3549 */
3550 if (!input)
3551 return err;
3552
3553 /* Otherwise, install the new rule as requested */
3554 INIT_HLIST_NODE(&input->fdir_node);
3555
3556 /* add filter to the list */
3557 if (parent)
3558 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3559 else
3560 hlist_add_head(&input->fdir_node,
3561 &pf->fdir_filter_list);
3562
3563 /* update counts */
3564 pf->fdir_pf_active_filters++;
3565
3566 return 0;
3567}
3568
3569/**
3570 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3571 * @pf: pointer to PF structure
3572 *
3573 * This function searches the list of filters and determines which FLX_PIT
3574 * entries are still required. It will prune any entries which are no longer
3575 * in use after the deletion.
3576 **/
3577static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3578{
3579 struct i40e_flex_pit *entry, *tmp;
3580 struct i40e_fdir_filter *rule;
3581
3582 /* First, we'll check the l3 table */
3583 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3584 bool found = false;
3585
3586 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3587 if (rule->flow_type != IP_USER_FLOW)
3588 continue;
3589 if (rule->flex_filter &&
3590 rule->flex_offset == entry->src_offset) {
3591 found = true;
3592 break;
3593 }
3594 }
3595
3596 /* If we didn't find the filter, then we can prune this entry
3597 * from the list.
3598 */
3599 if (!found) {
3600 list_del(&entry->list);
3601 kfree(entry);
3602 }
3603 }
3604
3605 /* Followed by the L4 table */
3606 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3607 bool found = false;
3608
3609 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3610 /* Skip this filter if it's L3, since we already
3611 * checked those in the above loop
3612 */
3613 if (rule->flow_type == IP_USER_FLOW)
3614 continue;
3615 if (rule->flex_filter &&
3616 rule->flex_offset == entry->src_offset) {
3617 found = true;
3618 break;
3619 }
3620 }
3621
3622 /* If we didn't find the filter, then we can prune this entry
3623 * from the list.
3624 */
3625 if (!found) {
3626 list_del(&entry->list);
3627 kfree(entry);
3628 }
3629 }
3630}
3631
3632/**
3633 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3634 * @vsi: Pointer to the targeted VSI
3635 * @cmd: The command to get or set Rx flow classification rules
3636 *
3637 * The function removes a Flow Director filter entry from the
3638 * hlist of the corresponding PF
3639 *
3640 * Returns 0 on success
3641 */
3642static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3643 struct ethtool_rxnfc *cmd)
3644{
3645 struct ethtool_rx_flow_spec *fsp =
3646 (struct ethtool_rx_flow_spec *)&cmd->fs;
3647 struct i40e_pf *pf = vsi->back;
3648 int ret = 0;
3649
3650 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3651 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3652 return -EBUSY;
3653
3654 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3655 return -EBUSY;
3656
3657 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3658
3659 i40e_prune_flex_pit_list(pf);
3660
3661 i40e_fdir_check_and_reenable(pf);
3662 return ret;
3663}
3664
3665/**
3666 * i40e_unused_pit_index - Find an unused PIT index for given list
3667 * @pf: the PF data structure
3668 *
3669 * Find the first unused flexible PIT index entry. We search both the L3 and
3670 * L4 flexible PIT lists so that the returned index is unique and unused by
3671 * either currently programmed L3 or L4 filters. We use a bit field as storage
3672 * to track which indexes are already used.
3673 **/
3674static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3675{
3676 unsigned long available_index = 0xFF;
3677 struct i40e_flex_pit *entry;
3678
3679 /* We need to make sure that the new index isn't in use by either L3
3680 * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3681 * L4 to use the same index.
3682 */
3683
3684 list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3685 clear_bit(entry->pit_index, &available_index);
3686
3687 list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3688 clear_bit(entry->pit_index, &available_index);
3689
3690 return find_first_bit(&available_index, 8);
3691}
3692
3693/**
3694 * i40e_find_flex_offset - Find an existing flex src_offset
3695 * @flex_pit_list: L3 or L4 flex PIT list
3696 * @src_offset: new src_offset to find
3697 *
3698 * Searches the flex_pit_list for an existing offset. If no offset is
3699 * currently programmed, then this will return an ERR_PTR if there is no space
3700 * to add a new offset, otherwise it returns NULL.
3701 **/
3702static
3703struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3704 u16 src_offset)
3705{
3706 struct i40e_flex_pit *entry;
3707 int size = 0;
3708
3709 /* Search for the src_offset first. If we find a matching entry
3710 * already programmed, we can simply re-use it.
3711 */
3712 list_for_each_entry(entry, flex_pit_list, list) {
3713 size++;
3714 if (entry->src_offset == src_offset)
3715 return entry;
3716 }
3717
3718 /* If we haven't found an entry yet, then the provided src offset has
3719 * not yet been programmed. We will program the src offset later on,
3720 * but we need to indicate whether there is enough space to do so
3721 * here. We'll make use of ERR_PTR for this purpose.
3722 */
3723 if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3724 return ERR_PTR(-ENOSPC);
3725
3726 return NULL;
3727}
3728
3729/**
3730 * i40e_add_flex_offset - Add src_offset to flex PIT table list
3731 * @flex_pit_list: L3 or L4 flex PIT list
3732 * @src_offset: new src_offset to add
3733 * @pit_index: the PIT index to program
3734 *
3735 * This function programs the new src_offset to the list. It is expected that
3736 * i40e_find_flex_offset has already been tried and returned NULL, indicating
3737 * that this offset is not programmed, and that the list has enough space to
3738 * store another offset.
3739 *
3740 * Returns 0 on success, and negative value on error.
3741 **/
3742static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3743 u16 src_offset,
3744 u8 pit_index)
3745{
3746 struct i40e_flex_pit *new_pit, *entry;
3747
3748 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3749 if (!new_pit)
3750 return -ENOMEM;
3751
3752 new_pit->src_offset = src_offset;
3753 new_pit->pit_index = pit_index;
3754
3755 /* We need to insert this item such that the list is sorted by
3756 * src_offset in ascending order.
3757 */
3758 list_for_each_entry(entry, flex_pit_list, list) {
3759 if (new_pit->src_offset < entry->src_offset) {
3760 list_add_tail(&new_pit->list, &entry->list);
3761 return 0;
3762 }
3763
3764 /* If we found an entry with our offset already programmed we
3765 * can simply return here, after freeing the memory. However,
3766 * if the pit_index does not match we need to report an error.
3767 */
3768 if (new_pit->src_offset == entry->src_offset) {
3769 int err = 0;
3770
3771 /* If the PIT index is not the same we can't re-use
3772 * the entry, so we must report an error.
3773 */
3774 if (new_pit->pit_index != entry->pit_index)
3775 err = -EINVAL;
3776
3777 kfree(new_pit);
3778 return err;
3779 }
3780 }
3781
3782 /* If we reached here, then we haven't yet added the item. This means
3783 * that we should add the item at the end of the list.
3784 */
3785 list_add_tail(&new_pit->list, flex_pit_list);
3786 return 0;
3787}
3788
3789/**
3790 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3791 * @pf: Pointer to the PF structure
3792 * @flex_pit_list: list of flexible src offsets in use
3793 * @flex_pit_start: index to first entry for this section of the table
3794 *
3795 * In order to handle flexible data, the hardware uses a table of values
3796 * called the FLX_PIT table. This table is used to indicate which sections of
3797 * the input correspond to what PIT index values. Unfortunately, hardware is
3798 * very restrictive about programming this table. Entries must be ordered by
3799 * src_offset in ascending order, without duplicates. Additionally, unused
3800 * entries must be set to the unused index value, and must have valid size and
3801 * length according to the src_offset ordering.
3802 *
3803 * This function will reprogram the FLX_PIT register from a book-keeping
3804 * structure that we guarantee is already ordered correctly, and has no more
3805 * than 3 entries.
3806 *
3807 * To make things easier, we only support flexible values of one word length,
3808 * rather than allowing variable length flexible values.
3809 **/
3810static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3811 struct list_head *flex_pit_list,
3812 int flex_pit_start)
3813{
3814 struct i40e_flex_pit *entry = NULL;
3815 u16 last_offset = 0;
3816 int i = 0, j = 0;
3817
3818 /* First, loop over the list of flex PIT entries, and reprogram the
3819 * registers.
3820 */
3821 list_for_each_entry(entry, flex_pit_list, list) {
3822 /* We have to be careful when programming values for the
3823 * largest SRC_OFFSET value. It is possible that adding
3824 * additional empty values at the end would overflow the space
3825 * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3826 * we check here and add the empty values prior to adding the
3827 * largest value.
3828 *
3829 * To determine this, we will use a loop from i+1 to 3, which
3830 * will determine whether the unused entries would have valid
3831 * SRC_OFFSET. Note that there cannot be extra entries past
3832 * this value, because the only valid values would have been
3833 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3834 * have been added to the list in the first place.
3835 */
3836 for (j = i + 1; j < 3; j++) {
3837 u16 offset = entry->src_offset + j;
3838 int index = flex_pit_start + i;
3839 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3840 1,
3841 offset - 3);
3842
3843 if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3844 i40e_write_rx_ctl(&pf->hw,
3845 I40E_PRTQF_FLX_PIT(index),
3846 value);
3847 i++;
3848 }
3849 }
3850
3851 /* Now, we can program the actual value into the table */
3852 i40e_write_rx_ctl(&pf->hw,
3853 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3854 I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3855 1,
3856 entry->src_offset));
3857 i++;
3858 }
3859
3860 /* In order to program the last entries in the table, we need to
3861 * determine the valid offset. If the list is empty, we'll just start
3862 * with 0. Otherwise, we'll start with the last item offset and add 1.
3863 * This ensures that all entries have valid sizes. If we don't do this
3864 * correctly, the hardware will disable flexible field parsing.
3865 */
3866 if (!list_empty(flex_pit_list))
3867 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3868
3869 for (; i < 3; i++, last_offset++) {
3870 i40e_write_rx_ctl(&pf->hw,
3871 I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3872 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3873 1,
3874 last_offset));
3875 }
3876}
3877
3878/**
3879 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3880 * @pf: pointer to the PF structure
3881 *
3882 * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3883 * internal helper function for implementation details.
3884 **/
3885static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
3886{
3887 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
3888 I40E_FLEX_PIT_IDX_START_L3);
3889
3890 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
3891 I40E_FLEX_PIT_IDX_START_L4);
3892
3893 /* We also need to program the L3 and L4 GLQF ORT register */
3894 i40e_write_rx_ctl(&pf->hw,
3895 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
3896 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
3897 3, 1));
3898
3899 i40e_write_rx_ctl(&pf->hw,
3900 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
3901 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
3902 3, 1));
3903}
3904
3905/**
3906 * i40e_flow_str - Converts a flow_type into a human readable string
3907 * @fsp: the flow specification
3908 *
3909 * Currently only flow types we support are included here, and the string
3910 * value attempts to match what ethtool would use to configure this flow type.
3911 **/
3912static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
3913{
3914 switch (fsp->flow_type & ~FLOW_EXT) {
3915 case TCP_V4_FLOW:
3916 return "tcp4";
3917 case UDP_V4_FLOW:
3918 return "udp4";
3919 case SCTP_V4_FLOW:
3920 return "sctp4";
3921 case IP_USER_FLOW:
3922 return "ip4";
3923 default:
3924 return "unknown";
3925 }
3926}
3927
3928/**
3929 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
3930 * @pit_index: PIT index to convert
3931 *
3932 * Returns the mask for a given PIT index. Will return 0 if the pit_index is
3933 * of range.
3934 **/
3935static u64 i40e_pit_index_to_mask(int pit_index)
3936{
3937 switch (pit_index) {
3938 case 0:
3939 return I40E_FLEX_50_MASK;
3940 case 1:
3941 return I40E_FLEX_51_MASK;
3942 case 2:
3943 return I40E_FLEX_52_MASK;
3944 case 3:
3945 return I40E_FLEX_53_MASK;
3946 case 4:
3947 return I40E_FLEX_54_MASK;
3948 case 5:
3949 return I40E_FLEX_55_MASK;
3950 case 6:
3951 return I40E_FLEX_56_MASK;
3952 case 7:
3953 return I40E_FLEX_57_MASK;
3954 default:
3955 return 0;
3956 }
3957}
3958
3959/**
3960 * i40e_print_input_set - Show changes between two input sets
3961 * @vsi: the vsi being configured
3962 * @old: the old input set
3963 * @new: the new input set
3964 *
3965 * Print the difference between old and new input sets by showing which series
3966 * of words are toggled on or off. Only displays the bits we actually support
3967 * changing.
3968 **/
3969static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
3970{
3971 struct i40e_pf *pf = vsi->back;
3972 bool old_value, new_value;
3973 int i;
3974
3975 old_value = !!(old & I40E_L3_SRC_MASK);
3976 new_value = !!(new & I40E_L3_SRC_MASK);
3977 if (old_value != new_value)
3978 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
3979 old_value ? "ON" : "OFF",
3980 new_value ? "ON" : "OFF");
3981
3982 old_value = !!(old & I40E_L3_DST_MASK);
3983 new_value = !!(new & I40E_L3_DST_MASK);
3984 if (old_value != new_value)
3985 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
3986 old_value ? "ON" : "OFF",
3987 new_value ? "ON" : "OFF");
3988
3989 old_value = !!(old & I40E_L4_SRC_MASK);
3990 new_value = !!(new & I40E_L4_SRC_MASK);
3991 if (old_value != new_value)
3992 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
3993 old_value ? "ON" : "OFF",
3994 new_value ? "ON" : "OFF");
3995
3996 old_value = !!(old & I40E_L4_DST_MASK);
3997 new_value = !!(new & I40E_L4_DST_MASK);
3998 if (old_value != new_value)
3999 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4000 old_value ? "ON" : "OFF",
4001 new_value ? "ON" : "OFF");
4002
4003 old_value = !!(old & I40E_VERIFY_TAG_MASK);
4004 new_value = !!(new & I40E_VERIFY_TAG_MASK);
4005 if (old_value != new_value)
4006 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4007 old_value ? "ON" : "OFF",
4008 new_value ? "ON" : "OFF");
4009
4010 /* Show change of flexible filter entries */
4011 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4012 u64 flex_mask = i40e_pit_index_to_mask(i);
4013
4014 old_value = !!(old & flex_mask);
4015 new_value = !!(new & flex_mask);
4016 if (old_value != new_value)
4017 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4018 i,
4019 old_value ? "ON" : "OFF",
4020 new_value ? "ON" : "OFF");
4021 }
4022
4023 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n",
4024 old);
4025 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4026 new);
4027}
4028
4029/**
4030 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4031 * @vsi: pointer to the targeted VSI
4032 * @fsp: pointer to Rx flow specification
4033 * @userdef: userdefined data from flow specification
4034 *
4035 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4036 * for partial matches exists with a few limitations. First, hardware only
4037 * supports masking by word boundary (2 bytes) and not per individual bit.
4038 * Second, hardware is limited to using one mask for a flow type and cannot
4039 * use a separate mask for each filter.
4040 *
4041 * To support these limitations, if we already have a configured filter for
4042 * the specified type, this function enforces that new filters of the type
4043 * match the configured input set. Otherwise, if we do not have a filter of
4044 * the specified type, we allow the input set to be updated to match the
4045 * desired filter.
4046 *
4047 * To help ensure that administrators understand why filters weren't displayed
4048 * as supported, we print a diagnostic message displaying how the input set
4049 * would change and warning to delete the preexisting filters if required.
4050 *
4051 * Returns 0 on successful input set match, and a negative return code on
4052 * failure.
4053 **/
4054static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4055 struct ethtool_rx_flow_spec *fsp,
4056 struct i40e_rx_flow_userdef *userdef)
4057{
4058 struct i40e_pf *pf = vsi->back;
4059 struct ethtool_tcpip4_spec *tcp_ip4_spec;
4060 struct ethtool_usrip4_spec *usr_ip4_spec;
4061 u64 current_mask, new_mask;
4062 bool new_flex_offset = false;
4063 bool flex_l3 = false;
4064 u16 *fdir_filter_count;
4065 u16 index, src_offset = 0;
4066 u8 pit_index = 0;
4067 int err;
4068
4069 switch (fsp->flow_type & ~FLOW_EXT) {
4070 case SCTP_V4_FLOW:
4071 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4072 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4073 break;
4074 case TCP_V4_FLOW:
4075 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4076 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4077 break;
4078 case UDP_V4_FLOW:
4079 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4080 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4081 break;
4082 case IP_USER_FLOW:
4083 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4084 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4085 flex_l3 = true;
4086 break;
4087 default:
4088 return -EOPNOTSUPP;
4089 }
4090
4091 /* Read the current input set from register memory. */
4092 current_mask = i40e_read_fd_input_set(pf, index);
4093 new_mask = current_mask;
4094
4095 /* Determine, if any, the required changes to the input set in order
4096 * to support the provided mask.
4097 *
4098 * Hardware only supports masking at word (2 byte) granularity and does
4099 * not support full bitwise masking. This implementation simplifies
4100 * even further and only supports fully enabled or fully disabled
4101 * masks for each field, even though we could split the ip4src and
4102 * ip4dst fields.
4103 */
4104 switch (fsp->flow_type & ~FLOW_EXT) {
4105 case SCTP_V4_FLOW:
4106 new_mask &= ~I40E_VERIFY_TAG_MASK;
4107 fallthrough;
4108 case TCP_V4_FLOW:
4109 case UDP_V4_FLOW:
4110 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4111
4112 /* IPv4 source address */
4113 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4114 new_mask |= I40E_L3_SRC_MASK;
4115 else if (!tcp_ip4_spec->ip4src)
4116 new_mask &= ~I40E_L3_SRC_MASK;
4117 else
4118 return -EOPNOTSUPP;
4119
4120 /* IPv4 destination address */
4121 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4122 new_mask |= I40E_L3_DST_MASK;
4123 else if (!tcp_ip4_spec->ip4dst)
4124 new_mask &= ~I40E_L3_DST_MASK;
4125 else
4126 return -EOPNOTSUPP;
4127
4128 /* L4 source port */
4129 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4130 new_mask |= I40E_L4_SRC_MASK;
4131 else if (!tcp_ip4_spec->psrc)
4132 new_mask &= ~I40E_L4_SRC_MASK;
4133 else
4134 return -EOPNOTSUPP;
4135
4136 /* L4 destination port */
4137 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4138 new_mask |= I40E_L4_DST_MASK;
4139 else if (!tcp_ip4_spec->pdst)
4140 new_mask &= ~I40E_L4_DST_MASK;
4141 else
4142 return -EOPNOTSUPP;
4143
4144 /* Filtering on Type of Service is not supported. */
4145 if (tcp_ip4_spec->tos)
4146 return -EOPNOTSUPP;
4147
4148 break;
4149 case IP_USER_FLOW:
4150 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4151
4152 /* IPv4 source address */
4153 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4154 new_mask |= I40E_L3_SRC_MASK;
4155 else if (!usr_ip4_spec->ip4src)
4156 new_mask &= ~I40E_L3_SRC_MASK;
4157 else
4158 return -EOPNOTSUPP;
4159
4160 /* IPv4 destination address */
4161 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4162 new_mask |= I40E_L3_DST_MASK;
4163 else if (!usr_ip4_spec->ip4dst)
4164 new_mask &= ~I40E_L3_DST_MASK;
4165 else
4166 return -EOPNOTSUPP;
4167
4168 /* First 4 bytes of L4 header */
4169 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4170 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4171 else if (!usr_ip4_spec->l4_4_bytes)
4172 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4173 else
4174 return -EOPNOTSUPP;
4175
4176 /* Filtering on Type of Service is not supported. */
4177 if (usr_ip4_spec->tos)
4178 return -EOPNOTSUPP;
4179
4180 /* Filtering on IP version is not supported */
4181 if (usr_ip4_spec->ip_ver)
4182 return -EINVAL;
4183
4184 /* Filtering on L4 protocol is not supported */
4185 if (usr_ip4_spec->proto)
4186 return -EINVAL;
4187
4188 break;
4189 default:
4190 return -EOPNOTSUPP;
4191 }
4192
4193 /* First, clear all flexible filter entries */
4194 new_mask &= ~I40E_FLEX_INPUT_MASK;
4195
4196 /* If we have a flexible filter, try to add this offset to the correct
4197 * flexible filter PIT list. Once finished, we can update the mask.
4198 * If the src_offset changed, we will get a new mask value which will
4199 * trigger an input set change.
4200 */
4201 if (userdef->flex_filter) {
4202 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4203
4204 /* Flexible offset must be even, since the flexible payload
4205 * must be aligned on 2-byte boundary.
4206 */
4207 if (userdef->flex_offset & 0x1) {
4208 dev_warn(&pf->pdev->dev,
4209 "Flexible data offset must be 2-byte aligned\n");
4210 return -EINVAL;
4211 }
4212
4213 src_offset = userdef->flex_offset >> 1;
4214
4215 /* FLX_PIT source offset value is only so large */
4216 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4217 dev_warn(&pf->pdev->dev,
4218 "Flexible data must reside within first 64 bytes of the packet payload\n");
4219 return -EINVAL;
4220 }
4221
4222 /* See if this offset has already been programmed. If we get
4223 * an ERR_PTR, then the filter is not safe to add. Otherwise,
4224 * if we get a NULL pointer, this means we will need to add
4225 * the offset.
4226 */
4227 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4228 src_offset);
4229 if (IS_ERR(flex_pit))
4230 return PTR_ERR(flex_pit);
4231
4232 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4233 * packet types, and thus we need to program both L3 and L4
4234 * flexible values. These must have identical flexible index,
4235 * as otherwise we can't correctly program the input set. So
4236 * we'll find both an L3 and L4 index and make sure they are
4237 * the same.
4238 */
4239 if (flex_l3) {
4240 l3_flex_pit =
4241 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4242 src_offset);
4243 if (IS_ERR(l3_flex_pit))
4244 return PTR_ERR(l3_flex_pit);
4245
4246 if (flex_pit) {
4247 /* If we already had a matching L4 entry, we
4248 * need to make sure that the L3 entry we
4249 * obtained uses the same index.
4250 */
4251 if (l3_flex_pit) {
4252 if (l3_flex_pit->pit_index !=
4253 flex_pit->pit_index) {
4254 return -EINVAL;
4255 }
4256 } else {
4257 new_flex_offset = true;
4258 }
4259 } else {
4260 flex_pit = l3_flex_pit;
4261 }
4262 }
4263
4264 /* If we didn't find an existing flex offset, we need to
4265 * program a new one. However, we don't immediately program it
4266 * here because we will wait to program until after we check
4267 * that it is safe to change the input set.
4268 */
4269 if (!flex_pit) {
4270 new_flex_offset = true;
4271 pit_index = i40e_unused_pit_index(pf);
4272 } else {
4273 pit_index = flex_pit->pit_index;
4274 }
4275
4276 /* Update the mask with the new offset */
4277 new_mask |= i40e_pit_index_to_mask(pit_index);
4278 }
4279
4280 /* If the mask and flexible filter offsets for this filter match the
4281 * currently programmed values we don't need any input set change, so
4282 * this filter is safe to install.
4283 */
4284 if (new_mask == current_mask && !new_flex_offset)
4285 return 0;
4286
4287 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4288 i40e_flow_str(fsp));
4289 i40e_print_input_set(vsi, current_mask, new_mask);
4290 if (new_flex_offset) {
4291 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4292 pit_index, src_offset);
4293 }
4294
4295 /* Hardware input sets are global across multiple ports, so even the
4296 * main port cannot change them when in MFP mode as this would impact
4297 * any filters on the other ports.
4298 */
4299 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4300 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4301 return -EOPNOTSUPP;
4302 }
4303
4304 /* This filter requires us to update the input set. However, hardware
4305 * only supports one input set per flow type, and does not support
4306 * separate masks for each filter. This means that we can only support
4307 * a single mask for all filters of a specific type.
4308 *
4309 * If we have preexisting filters, they obviously depend on the
4310 * current programmed input set. Display a diagnostic message in this
4311 * case explaining why the filter could not be accepted.
4312 */
4313 if (*fdir_filter_count) {
4314 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4315 i40e_flow_str(fsp),
4316 *fdir_filter_count);
4317 return -EOPNOTSUPP;
4318 }
4319
4320 i40e_write_fd_input_set(pf, index, new_mask);
4321
4322 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4323 * frames. If we're programming the input set for IPv4/Other, we also
4324 * need to program the IPv4/Fragmented input set. Since we don't have
4325 * separate support, we'll always assume and enforce that the two flow
4326 * types must have matching input sets.
4327 */
4328 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4329 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4330 new_mask);
4331
4332 /* Add the new offset and update table, if necessary */
4333 if (new_flex_offset) {
4334 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4335 pit_index);
4336 if (err)
4337 return err;
4338
4339 if (flex_l3) {
4340 err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4341 src_offset,
4342 pit_index);
4343 if (err)
4344 return err;
4345 }
4346
4347 i40e_reprogram_flex_pit(pf);
4348 }
4349
4350 return 0;
4351}
4352
4353/**
4354 * i40e_match_fdir_filter - Return true of two filters match
4355 * @a: pointer to filter struct
4356 * @b: pointer to filter struct
4357 *
4358 * Returns true if the two filters match exactly the same criteria. I.e. they
4359 * match the same flow type and have the same parameters. We don't need to
4360 * check any input-set since all filters of the same flow type must use the
4361 * same input set.
4362 **/
4363static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4364 struct i40e_fdir_filter *b)
4365{
4366 /* The filters do not much if any of these criteria differ. */
4367 if (a->dst_ip != b->dst_ip ||
4368 a->src_ip != b->src_ip ||
4369 a->dst_port != b->dst_port ||
4370 a->src_port != b->src_port ||
4371 a->flow_type != b->flow_type ||
4372 a->ip4_proto != b->ip4_proto)
4373 return false;
4374
4375 return true;
4376}
4377
4378/**
4379 * i40e_disallow_matching_filters - Check that new filters differ
4380 * @vsi: pointer to the targeted VSI
4381 * @input: new filter to check
4382 *
4383 * Due to hardware limitations, it is not possible for two filters that match
4384 * similar criteria to be programmed at the same time. This is true for a few
4385 * reasons:
4386 *
4387 * (a) all filters matching a particular flow type must use the same input
4388 * set, that is they must match the same criteria.
4389 * (b) different flow types will never match the same packet, as the flow type
4390 * is decided by hardware before checking which rules apply.
4391 * (c) hardware has no way to distinguish which order filters apply in.
4392 *
4393 * Due to this, we can't really support using the location data to order
4394 * filters in the hardware parsing. It is technically possible for the user to
4395 * request two filters matching the same criteria but which select different
4396 * queues. In this case, rather than keep both filters in the list, we reject
4397 * the 2nd filter when the user requests adding it.
4398 *
4399 * This avoids needing to track location for programming the filter to
4400 * hardware, and ensures that we avoid some strange scenarios involving
4401 * deleting filters which match the same criteria.
4402 **/
4403static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4404 struct i40e_fdir_filter *input)
4405{
4406 struct i40e_pf *pf = vsi->back;
4407 struct i40e_fdir_filter *rule;
4408 struct hlist_node *node2;
4409
4410 /* Loop through every filter, and check that it doesn't match */
4411 hlist_for_each_entry_safe(rule, node2,
4412 &pf->fdir_filter_list, fdir_node) {
4413 /* Don't check the filters match if they share the same fd_id,
4414 * since the new filter is actually just updating the target
4415 * of the old filter.
4416 */
4417 if (rule->fd_id == input->fd_id)
4418 continue;
4419
4420 /* If any filters match, then print a warning message to the
4421 * kernel message buffer and bail out.
4422 */
4423 if (i40e_match_fdir_filter(rule, input)) {
4424 dev_warn(&pf->pdev->dev,
4425 "Existing user defined filter %d already matches this flow.\n",
4426 rule->fd_id);
4427 return -EINVAL;
4428 }
4429 }
4430
4431 return 0;
4432}
4433
4434/**
4435 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4436 * @vsi: pointer to the targeted VSI
4437 * @cmd: command to get or set RX flow classification rules
4438 *
4439 * Add Flow Director filters for a specific flow spec based on their
4440 * protocol. Returns 0 if the filters were successfully added.
4441 **/
4442static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4443 struct ethtool_rxnfc *cmd)
4444{
4445 struct i40e_rx_flow_userdef userdef;
4446 struct ethtool_rx_flow_spec *fsp;
4447 struct i40e_fdir_filter *input;
4448 u16 dest_vsi = 0, q_index = 0;
4449 struct i40e_pf *pf;
4450 int ret = -EINVAL;
4451 u8 dest_ctl;
4452
4453 if (!vsi)
4454 return -EINVAL;
4455 pf = vsi->back;
4456
4457 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4458 return -EOPNOTSUPP;
4459
4460 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4461 return -ENOSPC;
4462
4463 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4464 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4465 return -EBUSY;
4466
4467 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4468 return -EBUSY;
4469
4470 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4471
4472 /* Parse the user-defined field */
4473 if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4474 return -EINVAL;
4475
4476 /* Extended MAC field is not supported */
4477 if (fsp->flow_type & FLOW_MAC_EXT)
4478 return -EINVAL;
4479
4480 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4481 if (ret)
4482 return ret;
4483
4484 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4485 pf->hw.func_caps.fd_filters_guaranteed)) {
4486 return -EINVAL;
4487 }
4488
4489 /* ring_cookie is either the drop index, or is a mask of the queue
4490 * index and VF id we wish to target.
4491 */
4492 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4493 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4494 } else {
4495 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4496 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4497
4498 if (!vf) {
4499 if (ring >= vsi->num_queue_pairs)
4500 return -EINVAL;
4501 dest_vsi = vsi->id;
4502 } else {
4503 /* VFs are zero-indexed, so we subtract one here */
4504 vf--;
4505
4506 if (vf >= pf->num_alloc_vfs)
4507 return -EINVAL;
4508 if (ring >= pf->vf[vf].num_queue_pairs)
4509 return -EINVAL;
4510 dest_vsi = pf->vf[vf].lan_vsi_id;
4511 }
4512 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4513 q_index = ring;
4514 }
4515
4516 input = kzalloc(sizeof(*input), GFP_KERNEL);
4517
4518 if (!input)
4519 return -ENOMEM;
4520
4521 input->fd_id = fsp->location;
4522 input->q_index = q_index;
4523 input->dest_vsi = dest_vsi;
4524 input->dest_ctl = dest_ctl;
4525 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4526 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4527 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4528 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4529 input->flow_type = fsp->flow_type & ~FLOW_EXT;
4530 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
4531
4532 /* Reverse the src and dest notion, since the HW expects them to be from
4533 * Tx perspective where as the input from user is from Rx filter view.
4534 */
4535 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4536 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4537 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4538 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4539
4540 if (userdef.flex_filter) {
4541 input->flex_filter = true;
4542 input->flex_word = cpu_to_be16(userdef.flex_word);
4543 input->flex_offset = userdef.flex_offset;
4544 }
4545
4546 /* Avoid programming two filters with identical match criteria. */
4547 ret = i40e_disallow_matching_filters(vsi, input);
4548 if (ret)
4549 goto free_filter_memory;
4550
4551 /* Add the input filter to the fdir_input_list, possibly replacing
4552 * a previous filter. Do not free the input structure after adding it
4553 * to the list as this would cause a use-after-free bug.
4554 */
4555 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4556 ret = i40e_add_del_fdir(vsi, input, true);
4557 if (ret)
4558 goto remove_sw_rule;
4559 return 0;
4560
4561remove_sw_rule:
4562 hlist_del(&input->fdir_node);
4563 pf->fdir_pf_active_filters--;
4564free_filter_memory:
4565 kfree(input);
4566 return ret;
4567}
4568
4569/**
4570 * i40e_set_rxnfc - command to set RX flow classification rules
4571 * @netdev: network interface device structure
4572 * @cmd: ethtool rxnfc command
4573 *
4574 * Returns Success if the command is supported.
4575 **/
4576static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4577{
4578 struct i40e_netdev_priv *np = netdev_priv(netdev);
4579 struct i40e_vsi *vsi = np->vsi;
4580 struct i40e_pf *pf = vsi->back;
4581 int ret = -EOPNOTSUPP;
4582
4583 switch (cmd->cmd) {
4584 case ETHTOOL_SRXFH:
4585 ret = i40e_set_rss_hash_opt(pf, cmd);
4586 break;
4587 case ETHTOOL_SRXCLSRLINS:
4588 ret = i40e_add_fdir_ethtool(vsi, cmd);
4589 break;
4590 case ETHTOOL_SRXCLSRLDEL:
4591 ret = i40e_del_fdir_entry(vsi, cmd);
4592 break;
4593 default:
4594 break;
4595 }
4596
4597 return ret;
4598}
4599
4600/**
4601 * i40e_max_channels - get Max number of combined channels supported
4602 * @vsi: vsi pointer
4603 **/
4604static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4605{
4606 /* TODO: This code assumes DCB and FD is disabled for now. */
4607 return vsi->alloc_queue_pairs;
4608}
4609
4610/**
4611 * i40e_get_channels - Get the current channels enabled and max supported etc.
4612 * @dev: network interface device structure
4613 * @ch: ethtool channels structure
4614 *
4615 * We don't support separate tx and rx queues as channels. The other count
4616 * represents how many queues are being used for control. max_combined counts
4617 * how many queue pairs we can support. They may not be mapped 1 to 1 with
4618 * q_vectors since we support a lot more queue pairs than q_vectors.
4619 **/
4620static void i40e_get_channels(struct net_device *dev,
4621 struct ethtool_channels *ch)
4622{
4623 struct i40e_netdev_priv *np = netdev_priv(dev);
4624 struct i40e_vsi *vsi = np->vsi;
4625 struct i40e_pf *pf = vsi->back;
4626
4627 /* report maximum channels */
4628 ch->max_combined = i40e_max_channels(vsi);
4629
4630 /* report info for other vector */
4631 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4632 ch->max_other = ch->other_count;
4633
4634 /* Note: This code assumes DCB is disabled for now. */
4635 ch->combined_count = vsi->num_queue_pairs;
4636}
4637
4638/**
4639 * i40e_set_channels - Set the new channels count.
4640 * @dev: network interface device structure
4641 * @ch: ethtool channels structure
4642 *
4643 * The new channels count may not be the same as requested by the user
4644 * since it gets rounded down to a power of 2 value.
4645 **/
4646static int i40e_set_channels(struct net_device *dev,
4647 struct ethtool_channels *ch)
4648{
4649 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4650 struct i40e_netdev_priv *np = netdev_priv(dev);
4651 unsigned int count = ch->combined_count;
4652 struct i40e_vsi *vsi = np->vsi;
4653 struct i40e_pf *pf = vsi->back;
4654 struct i40e_fdir_filter *rule;
4655 struct hlist_node *node2;
4656 int new_count;
4657 int err = 0;
4658
4659 /* We do not support setting channels for any other VSI at present */
4660 if (vsi->type != I40E_VSI_MAIN)
4661 return -EINVAL;
4662
4663 /* We do not support setting channels via ethtool when TCs are
4664 * configured through mqprio
4665 */
4666 if (pf->flags & I40E_FLAG_TC_MQPRIO)
4667 return -EINVAL;
4668
4669 /* verify they are not requesting separate vectors */
4670 if (!count || ch->rx_count || ch->tx_count)
4671 return -EINVAL;
4672
4673 /* verify other_count has not changed */
4674 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4675 return -EINVAL;
4676
4677 /* verify the number of channels does not exceed hardware limits */
4678 if (count > i40e_max_channels(vsi))
4679 return -EINVAL;
4680
4681 /* verify that the number of channels does not invalidate any current
4682 * flow director rules
4683 */
4684 hlist_for_each_entry_safe(rule, node2,
4685 &pf->fdir_filter_list, fdir_node) {
4686 if (rule->dest_ctl != drop && count <= rule->q_index) {
4687 dev_warn(&pf->pdev->dev,
4688 "Existing user defined filter %d assigns flow to queue %d\n",
4689 rule->fd_id, rule->q_index);
4690 err = -EINVAL;
4691 }
4692 }
4693
4694 if (err) {
4695 dev_err(&pf->pdev->dev,
4696 "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4697 count);
4698 return err;
4699 }
4700
4701 /* update feature limits from largest to smallest supported values */
4702 /* TODO: Flow director limit, DCB etc */
4703
4704 /* use rss_reconfig to rebuild with new queue count and update traffic
4705 * class queue mapping
4706 */
4707 new_count = i40e_reconfig_rss_queues(pf, count);
4708 if (new_count > 0)
4709 return 0;
4710 else
4711 return -EINVAL;
4712}
4713
4714/**
4715 * i40e_get_rxfh_key_size - get the RSS hash key size
4716 * @netdev: network interface device structure
4717 *
4718 * Returns the table size.
4719 **/
4720static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4721{
4722 return I40E_HKEY_ARRAY_SIZE;
4723}
4724
4725/**
4726 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4727 * @netdev: network interface device structure
4728 *
4729 * Returns the table size.
4730 **/
4731static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
4732{
4733 return I40E_HLUT_ARRAY_SIZE;
4734}
4735
4736/**
4737 * i40e_get_rxfh - get the rx flow hash indirection table
4738 * @netdev: network interface device structure
4739 * @indir: indirection table
4740 * @key: hash key
4741 * @hfunc: hash function
4742 *
4743 * Reads the indirection table directly from the hardware. Returns 0 on
4744 * success.
4745 **/
4746static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
4747 u8 *hfunc)
4748{
4749 struct i40e_netdev_priv *np = netdev_priv(netdev);
4750 struct i40e_vsi *vsi = np->vsi;
4751 u8 *lut, *seed = NULL;
4752 int ret;
4753 u16 i;
4754
4755 if (hfunc)
4756 *hfunc = ETH_RSS_HASH_TOP;
4757
4758 if (!indir)
4759 return 0;
4760
4761 seed = key;
4762 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4763 if (!lut)
4764 return -ENOMEM;
4765 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
4766 if (ret)
4767 goto out;
4768 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4769 indir[i] = (u32)(lut[i]);
4770
4771out:
4772 kfree(lut);
4773
4774 return ret;
4775}
4776
4777/**
4778 * i40e_set_rxfh - set the rx flow hash indirection table
4779 * @netdev: network interface device structure
4780 * @indir: indirection table
4781 * @key: hash key
4782 * @hfunc: hash function to use
4783 *
4784 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
4785 * returns 0 after programming the table.
4786 **/
4787static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
4788 const u8 *key, const u8 hfunc)
4789{
4790 struct i40e_netdev_priv *np = netdev_priv(netdev);
4791 struct i40e_vsi *vsi = np->vsi;
4792 struct i40e_pf *pf = vsi->back;
4793 u8 *seed = NULL;
4794 u16 i;
4795
4796 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
4797 return -EOPNOTSUPP;
4798
4799 if (key) {
4800 if (!vsi->rss_hkey_user) {
4801 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
4802 GFP_KERNEL);
4803 if (!vsi->rss_hkey_user)
4804 return -ENOMEM;
4805 }
4806 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
4807 seed = vsi->rss_hkey_user;
4808 }
4809 if (!vsi->rss_lut_user) {
4810 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4811 if (!vsi->rss_lut_user)
4812 return -ENOMEM;
4813 }
4814
4815 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
4816 if (indir)
4817 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4818 vsi->rss_lut_user[i] = (u8)(indir[i]);
4819 else
4820 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
4821 vsi->rss_size);
4822
4823 return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
4824 I40E_HLUT_ARRAY_SIZE);
4825}
4826
4827/**
4828 * i40e_get_priv_flags - report device private flags
4829 * @dev: network interface device structure
4830 *
4831 * The get string set count and the string set should be matched for each
4832 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags
4833 * array.
4834 *
4835 * Returns a u32 bitmap of flags.
4836 **/
4837static u32 i40e_get_priv_flags(struct net_device *dev)
4838{
4839 struct i40e_netdev_priv *np = netdev_priv(dev);
4840 struct i40e_vsi *vsi = np->vsi;
4841 struct i40e_pf *pf = vsi->back;
4842 u32 i, j, ret_flags = 0;
4843
4844 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4845 const struct i40e_priv_flags *priv_flags;
4846
4847 priv_flags = &i40e_gstrings_priv_flags[i];
4848
4849 if (priv_flags->flag & pf->flags)
4850 ret_flags |= BIT(i);
4851 }
4852
4853 if (pf->hw.pf_id != 0)
4854 return ret_flags;
4855
4856 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4857 const struct i40e_priv_flags *priv_flags;
4858
4859 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4860
4861 if (priv_flags->flag & pf->flags)
4862 ret_flags |= BIT(i + j);
4863 }
4864
4865 return ret_flags;
4866}
4867
4868/**
4869 * i40e_set_priv_flags - set private flags
4870 * @dev: network interface device structure
4871 * @flags: bit flags to be set
4872 **/
4873static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
4874{
4875 struct i40e_netdev_priv *np = netdev_priv(dev);
4876 u64 orig_flags, new_flags, changed_flags;
4877 enum i40e_admin_queue_err adq_err;
4878 struct i40e_vsi *vsi = np->vsi;
4879 struct i40e_pf *pf = vsi->back;
4880 bool is_reset_needed;
4881 i40e_status status;
4882 u32 i, j;
4883
4884 orig_flags = READ_ONCE(pf->flags);
4885 new_flags = orig_flags;
4886
4887 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4888 const struct i40e_priv_flags *priv_flags;
4889
4890 priv_flags = &i40e_gstrings_priv_flags[i];
4891
4892 if (flags & BIT(i))
4893 new_flags |= priv_flags->flag;
4894 else
4895 new_flags &= ~(priv_flags->flag);
4896
4897 /* If this is a read-only flag, it can't be changed */
4898 if (priv_flags->read_only &&
4899 ((orig_flags ^ new_flags) & ~BIT(i)))
4900 return -EOPNOTSUPP;
4901 }
4902
4903 if (pf->hw.pf_id != 0)
4904 goto flags_complete;
4905
4906 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4907 const struct i40e_priv_flags *priv_flags;
4908
4909 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4910
4911 if (flags & BIT(i + j))
4912 new_flags |= priv_flags->flag;
4913 else
4914 new_flags &= ~(priv_flags->flag);
4915
4916 /* If this is a read-only flag, it can't be changed */
4917 if (priv_flags->read_only &&
4918 ((orig_flags ^ new_flags) & ~BIT(i)))
4919 return -EOPNOTSUPP;
4920 }
4921
4922flags_complete:
4923 changed_flags = orig_flags ^ new_flags;
4924
4925 is_reset_needed = !!(changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
4926 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED |
4927 I40E_FLAG_DISABLE_FW_LLDP));
4928
4929 /* Before we finalize any flag changes, we need to perform some
4930 * checks to ensure that the changes are supported and safe.
4931 */
4932
4933 /* ATR eviction is not supported on all devices */
4934 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
4935 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
4936 return -EOPNOTSUPP;
4937
4938 /* If the driver detected FW LLDP was disabled on init, this flag could
4939 * be set, however we do not support _changing_ the flag:
4940 * - on XL710 if NPAR is enabled or FW API version < 1.7
4941 * - on X722 with FW API version < 1.6
4942 * There are situations where older FW versions/NPAR enabled PFs could
4943 * disable LLDP, however we _must_ not allow the user to enable/disable
4944 * LLDP with this flag on unsupported FW versions.
4945 */
4946 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
4947 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
4948 dev_warn(&pf->pdev->dev,
4949 "Device does not support changing FW LLDP\n");
4950 return -EOPNOTSUPP;
4951 }
4952 }
4953
4954 if (((changed_flags & I40E_FLAG_RS_FEC) ||
4955 (changed_flags & I40E_FLAG_BASE_R_FEC)) &&
4956 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
4957 pf->hw.device_id != I40E_DEV_ID_25G_B) {
4958 dev_warn(&pf->pdev->dev,
4959 "Device does not support changing FEC configuration\n");
4960 return -EOPNOTSUPP;
4961 }
4962
4963 /* Process any additional changes needed as a result of flag changes.
4964 * The changed_flags value reflects the list of bits that were
4965 * changed in the code above.
4966 */
4967
4968 /* Flush current ATR settings if ATR was disabled */
4969 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
4970 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
4971 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
4972 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
4973 }
4974
4975 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
4976 u16 sw_flags = 0, valid_flags = 0;
4977 int ret;
4978
4979 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
4980 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4981 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4982 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
4983 0, NULL);
4984 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
4985 dev_info(&pf->pdev->dev,
4986 "couldn't set switch config bits, err %s aq_err %s\n",
4987 i40e_stat_str(&pf->hw, ret),
4988 i40e_aq_str(&pf->hw,
4989 pf->hw.aq.asq_last_status));
4990 /* not a fatal problem, just keep going */
4991 }
4992 }
4993
4994 if ((changed_flags & I40E_FLAG_RS_FEC) ||
4995 (changed_flags & I40E_FLAG_BASE_R_FEC)) {
4996 u8 fec_cfg = 0;
4997
4998 if (new_flags & I40E_FLAG_RS_FEC &&
4999 new_flags & I40E_FLAG_BASE_R_FEC) {
5000 fec_cfg = I40E_AQ_SET_FEC_AUTO;
5001 } else if (new_flags & I40E_FLAG_RS_FEC) {
5002 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5003 I40E_AQ_SET_FEC_ABILITY_RS);
5004 } else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5005 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5006 I40E_AQ_SET_FEC_ABILITY_KR);
5007 }
5008 if (i40e_set_fec_cfg(dev, fec_cfg))
5009 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5010 }
5011
5012 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5013 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) {
5014 dev_err(&pf->pdev->dev,
5015 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5016 return -EOPNOTSUPP;
5017 }
5018
5019 if ((changed_flags & new_flags &
5020 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5021 (new_flags & I40E_FLAG_MFP_ENABLED))
5022 dev_warn(&pf->pdev->dev,
5023 "Turning on link-down-on-close flag may affect other partitions\n");
5024
5025 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5026 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5027 struct i40e_dcbx_config *dcbcfg;
5028
5029 i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5030 i40e_aq_set_dcb_parameters(&pf->hw, true, NULL);
5031 /* reset local_dcbx_config to default */
5032 dcbcfg = &pf->hw.local_dcbx_config;
5033 dcbcfg->etscfg.willing = 1;
5034 dcbcfg->etscfg.maxtcs = 0;
5035 dcbcfg->etscfg.tcbwtable[0] = 100;
5036 for (i = 1; i < I40E_MAX_TRAFFIC_CLASS; i++)
5037 dcbcfg->etscfg.tcbwtable[i] = 0;
5038 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
5039 dcbcfg->etscfg.prioritytable[i] = 0;
5040 dcbcfg->etscfg.tsatable[0] = I40E_IEEE_TSA_ETS;
5041 dcbcfg->pfc.willing = 1;
5042 dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
5043 } else {
5044 status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5045 if (status) {
5046 adq_err = pf->hw.aq.asq_last_status;
5047 switch (adq_err) {
5048 case I40E_AQ_RC_EEXIST:
5049 dev_warn(&pf->pdev->dev,
5050 "FW LLDP agent is already running\n");
5051 is_reset_needed = false;
5052 break;
5053 case I40E_AQ_RC_EPERM:
5054 dev_warn(&pf->pdev->dev,
5055 "Device configuration forbids SW from starting the LLDP agent.\n");
5056 return -EINVAL;
5057 default:
5058 dev_warn(&pf->pdev->dev,
5059 "Starting FW LLDP agent failed: error: %s, %s\n",
5060 i40e_stat_str(&pf->hw,
5061 status),
5062 i40e_aq_str(&pf->hw,
5063 adq_err));
5064 return -EINVAL;
5065 }
5066 }
5067 }
5068 }
5069
5070 /* Now that we've checked to ensure that the new flags are valid, load
5071 * them into place. Since we only modify flags either (a) during
5072 * initialization or (b) while holding the RTNL lock, we don't need
5073 * anything fancy here.
5074 */
5075 pf->flags = new_flags;
5076
5077 /* Issue reset to cause things to take effect, as additional bits
5078 * are added we will need to create a mask of bits requiring reset
5079 */
5080 if (is_reset_needed)
5081 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
5082
5083 return 0;
5084}
5085
5086/**
5087 * i40e_get_module_info - get (Q)SFP+ module type info
5088 * @netdev: network interface device structure
5089 * @modinfo: module EEPROM size and layout information structure
5090 **/
5091static int i40e_get_module_info(struct net_device *netdev,
5092 struct ethtool_modinfo *modinfo)
5093{
5094 struct i40e_netdev_priv *np = netdev_priv(netdev);
5095 struct i40e_vsi *vsi = np->vsi;
5096 struct i40e_pf *pf = vsi->back;
5097 struct i40e_hw *hw = &pf->hw;
5098 u32 sff8472_comp = 0;
5099 u32 sff8472_swap = 0;
5100 u32 sff8636_rev = 0;
5101 i40e_status status;
5102 u32 type = 0;
5103
5104 /* Check if firmware supports reading module EEPROM. */
5105 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5106 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5107 return -EINVAL;
5108 }
5109
5110 status = i40e_update_link_info(hw);
5111 if (status)
5112 return -EIO;
5113
5114 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5115 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5116 return -EINVAL;
5117 }
5118
5119 type = hw->phy.link_info.module_type[0];
5120
5121 switch (type) {
5122 case I40E_MODULE_TYPE_SFP:
5123 status = i40e_aq_get_phy_register(hw,
5124 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5125 I40E_I2C_EEPROM_DEV_ADDR, true,
5126 I40E_MODULE_SFF_8472_COMP,
5127 &sff8472_comp, NULL);
5128 if (status)
5129 return -EIO;
5130
5131 status = i40e_aq_get_phy_register(hw,
5132 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5133 I40E_I2C_EEPROM_DEV_ADDR, true,
5134 I40E_MODULE_SFF_8472_SWAP,
5135 &sff8472_swap, NULL);
5136 if (status)
5137 return -EIO;
5138
5139 /* Check if the module requires address swap to access
5140 * the other EEPROM memory page.
5141 */
5142 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5143 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5144 modinfo->type = ETH_MODULE_SFF_8079;
5145 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5146 } else if (sff8472_comp == 0x00) {
5147 /* Module is not SFF-8472 compliant */
5148 modinfo->type = ETH_MODULE_SFF_8079;
5149 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5150 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5151 /* Module is SFF-8472 compliant but doesn't implement
5152 * Digital Diagnostic Monitoring (DDM).
5153 */
5154 modinfo->type = ETH_MODULE_SFF_8079;
5155 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5156 } else {
5157 modinfo->type = ETH_MODULE_SFF_8472;
5158 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5159 }
5160 break;
5161 case I40E_MODULE_TYPE_QSFP_PLUS:
5162 /* Read from memory page 0. */
5163 status = i40e_aq_get_phy_register(hw,
5164 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5165 0, true,
5166 I40E_MODULE_REVISION_ADDR,
5167 &sff8636_rev, NULL);
5168 if (status)
5169 return -EIO;
5170 /* Determine revision compliance byte */
5171 if (sff8636_rev > 0x02) {
5172 /* Module is SFF-8636 compliant */
5173 modinfo->type = ETH_MODULE_SFF_8636;
5174 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5175 } else {
5176 modinfo->type = ETH_MODULE_SFF_8436;
5177 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5178 }
5179 break;
5180 case I40E_MODULE_TYPE_QSFP28:
5181 modinfo->type = ETH_MODULE_SFF_8636;
5182 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5183 break;
5184 default:
5185 netdev_err(vsi->netdev, "Module type unrecognized\n");
5186 return -EINVAL;
5187 }
5188 return 0;
5189}
5190
5191/**
5192 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5193 * @netdev: network interface device structure
5194 * @ee: EEPROM dump request structure
5195 * @data: buffer to be filled with EEPROM contents
5196 **/
5197static int i40e_get_module_eeprom(struct net_device *netdev,
5198 struct ethtool_eeprom *ee,
5199 u8 *data)
5200{
5201 struct i40e_netdev_priv *np = netdev_priv(netdev);
5202 struct i40e_vsi *vsi = np->vsi;
5203 struct i40e_pf *pf = vsi->back;
5204 struct i40e_hw *hw = &pf->hw;
5205 bool is_sfp = false;
5206 i40e_status status;
5207 u32 value = 0;
5208 int i;
5209
5210 if (!ee || !ee->len || !data)
5211 return -EINVAL;
5212
5213 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5214 is_sfp = true;
5215
5216 for (i = 0; i < ee->len; i++) {
5217 u32 offset = i + ee->offset;
5218 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5219
5220 /* Check if we need to access the other memory page */
5221 if (is_sfp) {
5222 if (offset >= ETH_MODULE_SFF_8079_LEN) {
5223 offset -= ETH_MODULE_SFF_8079_LEN;
5224 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5225 }
5226 } else {
5227 while (offset >= ETH_MODULE_SFF_8436_LEN) {
5228 /* Compute memory page number and offset. */
5229 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5230 addr++;
5231 }
5232 }
5233
5234 status = i40e_aq_get_phy_register(hw,
5235 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5236 true, addr, offset, &value, NULL);
5237 if (status)
5238 return -EIO;
5239 data[i] = value;
5240 }
5241 return 0;
5242}
5243
5244static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5245{
5246 return -EOPNOTSUPP;
5247}
5248
5249static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5250{
5251 return -EOPNOTSUPP;
5252}
5253
5254static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5255 .get_drvinfo = i40e_get_drvinfo,
5256 .set_eeprom = i40e_set_eeprom,
5257 .get_eeprom_len = i40e_get_eeprom_len,
5258 .get_eeprom = i40e_get_eeprom,
5259};
5260
5261static const struct ethtool_ops i40e_ethtool_ops = {
5262 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5263 ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
5264 ETHTOOL_COALESCE_USE_ADAPTIVE |
5265 ETHTOOL_COALESCE_RX_USECS_HIGH |
5266 ETHTOOL_COALESCE_TX_USECS_HIGH,
5267 .get_drvinfo = i40e_get_drvinfo,
5268 .get_regs_len = i40e_get_regs_len,
5269 .get_regs = i40e_get_regs,
5270 .nway_reset = i40e_nway_reset,
5271 .get_link = ethtool_op_get_link,
5272 .get_wol = i40e_get_wol,
5273 .set_wol = i40e_set_wol,
5274 .set_eeprom = i40e_set_eeprom,
5275 .get_eeprom_len = i40e_get_eeprom_len,
5276 .get_eeprom = i40e_get_eeprom,
5277 .get_ringparam = i40e_get_ringparam,
5278 .set_ringparam = i40e_set_ringparam,
5279 .get_pauseparam = i40e_get_pauseparam,
5280 .set_pauseparam = i40e_set_pauseparam,
5281 .get_msglevel = i40e_get_msglevel,
5282 .set_msglevel = i40e_set_msglevel,
5283 .get_rxnfc = i40e_get_rxnfc,
5284 .set_rxnfc = i40e_set_rxnfc,
5285 .self_test = i40e_diag_test,
5286 .get_strings = i40e_get_strings,
5287 .get_eee = i40e_get_eee,
5288 .set_eee = i40e_set_eee,
5289 .set_phys_id = i40e_set_phys_id,
5290 .get_sset_count = i40e_get_sset_count,
5291 .get_ethtool_stats = i40e_get_ethtool_stats,
5292 .get_coalesce = i40e_get_coalesce,
5293 .set_coalesce = i40e_set_coalesce,
5294 .get_rxfh_key_size = i40e_get_rxfh_key_size,
5295 .get_rxfh_indir_size = i40e_get_rxfh_indir_size,
5296 .get_rxfh = i40e_get_rxfh,
5297 .set_rxfh = i40e_set_rxfh,
5298 .get_channels = i40e_get_channels,
5299 .set_channels = i40e_set_channels,
5300 .get_module_info = i40e_get_module_info,
5301 .get_module_eeprom = i40e_get_module_eeprom,
5302 .get_ts_info = i40e_get_ts_info,
5303 .get_priv_flags = i40e_get_priv_flags,
5304 .set_priv_flags = i40e_set_priv_flags,
5305 .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5306 .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5307 .get_link_ksettings = i40e_get_link_ksettings,
5308 .set_link_ksettings = i40e_set_link_ksettings,
5309 .get_fecparam = i40e_get_fec_param,
5310 .set_fecparam = i40e_set_fec_param,
5311 .flash_device = i40e_ddp_flash,
5312};
5313
5314void i40e_set_ethtool_ops(struct net_device *netdev)
5315{
5316 struct i40e_netdev_priv *np = netdev_priv(netdev);
5317 struct i40e_pf *pf = np->vsi->back;
5318
5319 if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5320 netdev->ethtool_ops = &i40e_ethtool_ops;
5321 else
5322 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5323}