1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
4 /* ethtool support for iavf */
7 #include <linux/uaccess.h>
9 /* ethtool statistics helpers */
12 * struct iavf_stats - definition for an ethtool statistic
13 * @stat_string: statistic name to display in ethtool -S output
14 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
15 * @stat_offset: offsetof() the stat from a base pointer
17 * This structure defines a statistic to be added to the ethtool stats buffer.
18 * It defines a statistic as offset from a common base pointer. Stats should
19 * be defined in constant arrays using the IAVF_STAT macro, with every element
20 * of the array using the same _type for calculating the sizeof_stat and
23 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
24 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
25 * the iavf_add_ethtool_stat() helper function.
27 * The @stat_string is interpreted as a format string, allowing formatted
28 * values to be inserted while looping over multiple structures for a given
29 * statistics array. Thus, every statistic string in an array should have the
30 * same type and number of format specifiers, to be formatted by variadic
31 * arguments to the iavf_add_stat_string() helper function.
34 char stat_string[ETH_GSTRING_LEN];
39 /* Helper macro to define an iavf_stat structure with proper size and type.
40 * Use this when defining constant statistics arrays. Note that @_type expects
41 * only a type name and is used multiple times.
43 #define IAVF_STAT(_type, _name, _stat) { \
44 .stat_string = _name, \
45 .sizeof_stat = sizeof_field(_type, _stat), \
46 .stat_offset = offsetof(_type, _stat) \
49 /* Helper macro for defining some statistics related to queues */
50 #define IAVF_QUEUE_STAT(_name, _stat) \
51 IAVF_STAT(struct iavf_ring, _name, _stat)
53 /* Stats associated with a Tx or Rx ring */
54 static const struct iavf_stats iavf_gstrings_queue_stats[] = {
55 IAVF_QUEUE_STAT("%s-%u.packets", stats.packets),
56 IAVF_QUEUE_STAT("%s-%u.bytes", stats.bytes),
60 * iavf_add_one_ethtool_stat - copy the stat into the supplied buffer
61 * @data: location to store the stat value
62 * @pointer: basis for where to copy from
63 * @stat: the stat definition
65 * Copies the stat data defined by the pointer and stat structure pair into
66 * the memory supplied as data. Used to implement iavf_add_ethtool_stats and
67 * iavf_add_queue_stats. If the pointer is null, data will be zero'd.
70 iavf_add_one_ethtool_stat(u64 *data, void *pointer,
71 const struct iavf_stats *stat)
76 /* ensure that the ethtool data buffer is zero'd for any stats
77 * which don't have a valid pointer.
83 p = (char *)pointer + stat->stat_offset;
84 switch (stat->sizeof_stat) {
98 WARN_ONCE(1, "unexpected stat size for %s",
105 * __iavf_add_ethtool_stats - copy stats into the ethtool supplied buffer
106 * @data: ethtool stats buffer
107 * @pointer: location to copy stats from
108 * @stats: array of stats to copy
109 * @size: the size of the stats definition
111 * Copy the stats defined by the stats array using the pointer as a base into
112 * the data buffer supplied by ethtool. Updates the data pointer to point to
113 * the next empty location for successive calls to __iavf_add_ethtool_stats.
114 * If pointer is null, set the data values to zero and update the pointer to
118 __iavf_add_ethtool_stats(u64 **data, void *pointer,
119 const struct iavf_stats stats[],
120 const unsigned int size)
124 for (i = 0; i < size; i++)
125 iavf_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
129 * iavf_add_ethtool_stats - copy stats into ethtool supplied buffer
130 * @data: ethtool stats buffer
131 * @pointer: location where stats are stored
132 * @stats: static const array of stat definitions
134 * Macro to ease the use of __iavf_add_ethtool_stats by taking a static
135 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
136 * ensuring that we pass the size associated with the given stats array.
138 * The parameter @stats is evaluated twice, so parameters with side effects
141 #define iavf_add_ethtool_stats(data, pointer, stats) \
142 __iavf_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
145 * iavf_add_queue_stats - copy queue statistics into supplied buffer
146 * @data: ethtool stats buffer
147 * @ring: the ring to copy
149 * Queue statistics must be copied while protected by
150 * u64_stats_fetch_begin_irq, so we can't directly use iavf_add_ethtool_stats.
151 * Assumes that queue stats are defined in iavf_gstrings_queue_stats. If the
152 * ring pointer is null, zero out the queue stat values and update the data
153 * pointer. Otherwise safely copy the stats from the ring into the supplied
154 * buffer and update the data pointer when finished.
156 * This function expects to be called while under rcu_read_lock().
159 iavf_add_queue_stats(u64 **data, struct iavf_ring *ring)
161 const unsigned int size = ARRAY_SIZE(iavf_gstrings_queue_stats);
162 const struct iavf_stats *stats = iavf_gstrings_queue_stats;
166 /* To avoid invalid statistics values, ensure that we keep retrying
167 * the copy until we get a consistent value according to
168 * u64_stats_fetch_retry_irq. But first, make sure our ring is
169 * non-null before attempting to access its syncp.
172 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp);
173 for (i = 0; i < size; i++)
174 iavf_add_one_ethtool_stat(&(*data)[i], ring, &stats[i]);
175 } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start));
177 /* Once we successfully copy the stats in, update the data pointer */
182 * __iavf_add_stat_strings - copy stat strings into ethtool buffer
183 * @p: ethtool supplied buffer
184 * @stats: stat definitions array
185 * @size: size of the stats array
187 * Format and copy the strings described by stats into the buffer pointed at
190 static void __iavf_add_stat_strings(u8 **p, const struct iavf_stats stats[],
191 const unsigned int size, ...)
195 for (i = 0; i < size; i++) {
198 va_start(args, size);
199 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
200 *p += ETH_GSTRING_LEN;
206 * iavf_add_stat_strings - copy stat strings into ethtool buffer
207 * @p: ethtool supplied buffer
208 * @stats: stat definitions array
210 * Format and copy the strings described by the const static stats value into
211 * the buffer pointed at by p.
213 * The parameter @stats is evaluated twice, so parameters with side effects
214 * should be avoided. Additionally, stats must be an array such that
215 * ARRAY_SIZE can be called on it.
217 #define iavf_add_stat_strings(p, stats, ...) \
218 __iavf_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
220 #define VF_STAT(_name, _stat) \
221 IAVF_STAT(struct iavf_adapter, _name, _stat)
223 static const struct iavf_stats iavf_gstrings_stats[] = {
224 VF_STAT("rx_bytes", current_stats.rx_bytes),
225 VF_STAT("rx_unicast", current_stats.rx_unicast),
226 VF_STAT("rx_multicast", current_stats.rx_multicast),
227 VF_STAT("rx_broadcast", current_stats.rx_broadcast),
228 VF_STAT("rx_discards", current_stats.rx_discards),
229 VF_STAT("rx_unknown_protocol", current_stats.rx_unknown_protocol),
230 VF_STAT("tx_bytes", current_stats.tx_bytes),
231 VF_STAT("tx_unicast", current_stats.tx_unicast),
232 VF_STAT("tx_multicast", current_stats.tx_multicast),
233 VF_STAT("tx_broadcast", current_stats.tx_broadcast),
234 VF_STAT("tx_discards", current_stats.tx_discards),
235 VF_STAT("tx_errors", current_stats.tx_errors),
238 #define IAVF_STATS_LEN ARRAY_SIZE(iavf_gstrings_stats)
240 #define IAVF_QUEUE_STATS_LEN ARRAY_SIZE(iavf_gstrings_queue_stats)
242 /* For now we have one and only one private flag and it is only defined
243 * when we have support for the SKIP_CPU_SYNC DMA attribute. Instead
244 * of leaving all this code sitting around empty we will strip it unless
245 * our one private flag is actually available.
247 struct iavf_priv_flags {
248 char flag_string[ETH_GSTRING_LEN];
253 #define IAVF_PRIV_FLAG(_name, _flag, _read_only) { \
254 .flag_string = _name, \
256 .read_only = _read_only, \
259 static const struct iavf_priv_flags iavf_gstrings_priv_flags[] = {
260 IAVF_PRIV_FLAG("legacy-rx", IAVF_FLAG_LEGACY_RX, 0),
263 #define IAVF_PRIV_FLAGS_STR_LEN ARRAY_SIZE(iavf_gstrings_priv_flags)
266 * iavf_get_link_ksettings - Get Link Speed and Duplex settings
267 * @netdev: network interface device structure
268 * @cmd: ethtool command
270 * Reports speed/duplex settings. Because this is a VF, we don't know what
271 * kind of link we really have, so we fake it.
273 static int iavf_get_link_ksettings(struct net_device *netdev,
274 struct ethtool_link_ksettings *cmd)
276 struct iavf_adapter *adapter = netdev_priv(netdev);
278 ethtool_link_ksettings_zero_link_mode(cmd, supported);
279 cmd->base.autoneg = AUTONEG_DISABLE;
280 cmd->base.port = PORT_NONE;
281 cmd->base.duplex = DUPLEX_FULL;
283 if (ADV_LINK_SUPPORT(adapter)) {
284 if (adapter->link_speed_mbps &&
285 adapter->link_speed_mbps < U32_MAX)
286 cmd->base.speed = adapter->link_speed_mbps;
288 cmd->base.speed = SPEED_UNKNOWN;
293 switch (adapter->link_speed) {
294 case VIRTCHNL_LINK_SPEED_40GB:
295 cmd->base.speed = SPEED_40000;
297 case VIRTCHNL_LINK_SPEED_25GB:
298 cmd->base.speed = SPEED_25000;
300 case VIRTCHNL_LINK_SPEED_20GB:
301 cmd->base.speed = SPEED_20000;
303 case VIRTCHNL_LINK_SPEED_10GB:
304 cmd->base.speed = SPEED_10000;
306 case VIRTCHNL_LINK_SPEED_5GB:
307 cmd->base.speed = SPEED_5000;
309 case VIRTCHNL_LINK_SPEED_2_5GB:
310 cmd->base.speed = SPEED_2500;
312 case VIRTCHNL_LINK_SPEED_1GB:
313 cmd->base.speed = SPEED_1000;
315 case VIRTCHNL_LINK_SPEED_100MB:
316 cmd->base.speed = SPEED_100;
326 * iavf_get_sset_count - Get length of string set
327 * @netdev: network interface device structure
328 * @sset: id of string set
330 * Reports size of various string tables.
332 static int iavf_get_sset_count(struct net_device *netdev, int sset)
334 if (sset == ETH_SS_STATS)
335 return IAVF_STATS_LEN +
336 (IAVF_QUEUE_STATS_LEN * 2 * IAVF_MAX_REQ_QUEUES);
337 else if (sset == ETH_SS_PRIV_FLAGS)
338 return IAVF_PRIV_FLAGS_STR_LEN;
344 * iavf_get_ethtool_stats - report device statistics
345 * @netdev: network interface device structure
346 * @stats: ethtool statistics structure
347 * @data: pointer to data buffer
349 * All statistics are added to the data buffer as an array of u64.
351 static void iavf_get_ethtool_stats(struct net_device *netdev,
352 struct ethtool_stats *stats, u64 *data)
354 struct iavf_adapter *adapter = netdev_priv(netdev);
357 iavf_add_ethtool_stats(&data, adapter, iavf_gstrings_stats);
360 for (i = 0; i < IAVF_MAX_REQ_QUEUES; i++) {
361 struct iavf_ring *ring;
363 /* Avoid accessing un-allocated queues */
364 ring = (i < adapter->num_active_queues ?
365 &adapter->tx_rings[i] : NULL);
366 iavf_add_queue_stats(&data, ring);
368 /* Avoid accessing un-allocated queues */
369 ring = (i < adapter->num_active_queues ?
370 &adapter->rx_rings[i] : NULL);
371 iavf_add_queue_stats(&data, ring);
377 * iavf_get_priv_flag_strings - Get private flag strings
378 * @netdev: network interface device structure
379 * @data: buffer for string data
381 * Builds the private flags string table
383 static void iavf_get_priv_flag_strings(struct net_device *netdev, u8 *data)
387 for (i = 0; i < IAVF_PRIV_FLAGS_STR_LEN; i++) {
388 snprintf(data, ETH_GSTRING_LEN, "%s",
389 iavf_gstrings_priv_flags[i].flag_string);
390 data += ETH_GSTRING_LEN;
395 * iavf_get_stat_strings - Get stat strings
396 * @netdev: network interface device structure
397 * @data: buffer for string data
399 * Builds the statistics string table
401 static void iavf_get_stat_strings(struct net_device *netdev, u8 *data)
405 iavf_add_stat_strings(&data, iavf_gstrings_stats);
407 /* Queues are always allocated in pairs, so we just use num_tx_queues
408 * for both Tx and Rx queues.
410 for (i = 0; i < netdev->num_tx_queues; i++) {
411 iavf_add_stat_strings(&data, iavf_gstrings_queue_stats,
413 iavf_add_stat_strings(&data, iavf_gstrings_queue_stats,
419 * iavf_get_strings - Get string set
420 * @netdev: network interface device structure
421 * @sset: id of string set
422 * @data: buffer for string data
424 * Builds string tables for various string sets
426 static void iavf_get_strings(struct net_device *netdev, u32 sset, u8 *data)
430 iavf_get_stat_strings(netdev, data);
432 case ETH_SS_PRIV_FLAGS:
433 iavf_get_priv_flag_strings(netdev, data);
441 * iavf_get_priv_flags - report device private flags
442 * @netdev: network interface device structure
444 * The get string set count and the string set should be matched for each
445 * flag returned. Add new strings for each flag to the iavf_gstrings_priv_flags
448 * Returns a u32 bitmap of flags.
450 static u32 iavf_get_priv_flags(struct net_device *netdev)
452 struct iavf_adapter *adapter = netdev_priv(netdev);
453 u32 i, ret_flags = 0;
455 for (i = 0; i < IAVF_PRIV_FLAGS_STR_LEN; i++) {
456 const struct iavf_priv_flags *priv_flags;
458 priv_flags = &iavf_gstrings_priv_flags[i];
460 if (priv_flags->flag & adapter->flags)
468 * iavf_set_priv_flags - set private flags
469 * @netdev: network interface device structure
470 * @flags: bit flags to be set
472 static int iavf_set_priv_flags(struct net_device *netdev, u32 flags)
474 struct iavf_adapter *adapter = netdev_priv(netdev);
475 u32 orig_flags, new_flags, changed_flags;
478 orig_flags = READ_ONCE(adapter->flags);
479 new_flags = orig_flags;
481 for (i = 0; i < IAVF_PRIV_FLAGS_STR_LEN; i++) {
482 const struct iavf_priv_flags *priv_flags;
484 priv_flags = &iavf_gstrings_priv_flags[i];
487 new_flags |= priv_flags->flag;
489 new_flags &= ~(priv_flags->flag);
491 if (priv_flags->read_only &&
492 ((orig_flags ^ new_flags) & ~BIT(i)))
496 /* Before we finalize any flag changes, any checks which we need to
497 * perform to determine if the new flags will be supported should go
501 /* Compare and exchange the new flags into place. If we failed, that
502 * is if cmpxchg returns anything but the old value, this means
503 * something else must have modified the flags variable since we
504 * copied it. We'll just punt with an error and log something in the
507 if (cmpxchg(&adapter->flags, orig_flags, new_flags) != orig_flags) {
508 dev_warn(&adapter->pdev->dev,
509 "Unable to update adapter->flags as it was modified by another thread...\n");
513 changed_flags = orig_flags ^ new_flags;
515 /* Process any additional changes needed as a result of flag changes.
516 * The changed_flags value reflects the list of bits that were changed
520 /* issue a reset to force legacy-rx change to take effect */
521 if (changed_flags & IAVF_FLAG_LEGACY_RX) {
522 if (netif_running(netdev)) {
523 adapter->flags |= IAVF_FLAG_RESET_NEEDED;
524 queue_work(iavf_wq, &adapter->reset_task);
532 * iavf_get_msglevel - Get debug message level
533 * @netdev: network interface device structure
535 * Returns current debug message level.
537 static u32 iavf_get_msglevel(struct net_device *netdev)
539 struct iavf_adapter *adapter = netdev_priv(netdev);
541 return adapter->msg_enable;
545 * iavf_set_msglevel - Set debug message level
546 * @netdev: network interface device structure
547 * @data: message level
549 * Set current debug message level. Higher values cause the driver to
552 static void iavf_set_msglevel(struct net_device *netdev, u32 data)
554 struct iavf_adapter *adapter = netdev_priv(netdev);
556 if (IAVF_DEBUG_USER & data)
557 adapter->hw.debug_mask = data;
558 adapter->msg_enable = data;
562 * iavf_get_drvinfo - Get driver info
563 * @netdev: network interface device structure
564 * @drvinfo: ethool driver info structure
566 * Returns information about the driver and device for display to the user.
568 static void iavf_get_drvinfo(struct net_device *netdev,
569 struct ethtool_drvinfo *drvinfo)
571 struct iavf_adapter *adapter = netdev_priv(netdev);
573 strlcpy(drvinfo->driver, iavf_driver_name, 32);
574 strlcpy(drvinfo->fw_version, "N/A", 4);
575 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
576 drvinfo->n_priv_flags = IAVF_PRIV_FLAGS_STR_LEN;
580 * iavf_get_ringparam - Get ring parameters
581 * @netdev: network interface device structure
582 * @ring: ethtool ringparam structure
584 * Returns current ring parameters. TX and RX rings are reported separately,
585 * but the number of rings is not reported.
587 static void iavf_get_ringparam(struct net_device *netdev,
588 struct ethtool_ringparam *ring)
590 struct iavf_adapter *adapter = netdev_priv(netdev);
592 ring->rx_max_pending = IAVF_MAX_RXD;
593 ring->tx_max_pending = IAVF_MAX_TXD;
594 ring->rx_pending = adapter->rx_desc_count;
595 ring->tx_pending = adapter->tx_desc_count;
599 * iavf_set_ringparam - Set ring parameters
600 * @netdev: network interface device structure
601 * @ring: ethtool ringparam structure
603 * Sets ring parameters. TX and RX rings are controlled separately, but the
604 * number of rings is not specified, so all rings get the same settings.
606 static int iavf_set_ringparam(struct net_device *netdev,
607 struct ethtool_ringparam *ring)
609 struct iavf_adapter *adapter = netdev_priv(netdev);
610 u32 new_rx_count, new_tx_count;
612 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
615 new_tx_count = clamp_t(u32, ring->tx_pending,
618 new_tx_count = ALIGN(new_tx_count, IAVF_REQ_DESCRIPTOR_MULTIPLE);
620 new_rx_count = clamp_t(u32, ring->rx_pending,
623 new_rx_count = ALIGN(new_rx_count, IAVF_REQ_DESCRIPTOR_MULTIPLE);
625 /* if nothing to do return success */
626 if ((new_tx_count == adapter->tx_desc_count) &&
627 (new_rx_count == adapter->rx_desc_count))
630 adapter->tx_desc_count = new_tx_count;
631 adapter->rx_desc_count = new_rx_count;
633 if (netif_running(netdev)) {
634 adapter->flags |= IAVF_FLAG_RESET_NEEDED;
635 queue_work(iavf_wq, &adapter->reset_task);
642 * __iavf_get_coalesce - get per-queue coalesce settings
643 * @netdev: the netdev to check
644 * @ec: ethtool coalesce data structure
645 * @queue: which queue to pick
647 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
648 * are per queue. If queue is <0 then we default to queue 0 as the
649 * representative value.
651 static int __iavf_get_coalesce(struct net_device *netdev,
652 struct ethtool_coalesce *ec, int queue)
654 struct iavf_adapter *adapter = netdev_priv(netdev);
655 struct iavf_vsi *vsi = &adapter->vsi;
656 struct iavf_ring *rx_ring, *tx_ring;
658 ec->tx_max_coalesced_frames = vsi->work_limit;
659 ec->rx_max_coalesced_frames = vsi->work_limit;
661 /* Rx and Tx usecs per queue value. If user doesn't specify the
662 * queue, return queue 0's value to represent.
666 else if (queue >= adapter->num_active_queues)
669 rx_ring = &adapter->rx_rings[queue];
670 tx_ring = &adapter->tx_rings[queue];
672 if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
673 ec->use_adaptive_rx_coalesce = 1;
675 if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
676 ec->use_adaptive_tx_coalesce = 1;
678 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~IAVF_ITR_DYNAMIC;
679 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~IAVF_ITR_DYNAMIC;
685 * iavf_get_coalesce - Get interrupt coalescing settings
686 * @netdev: network interface device structure
687 * @ec: ethtool coalesce structure
688 * @kernel_coal: ethtool CQE mode setting structure
689 * @extack: extack for reporting error messages
691 * Returns current coalescing settings. This is referred to elsewhere in the
692 * driver as Interrupt Throttle Rate, as this is how the hardware describes
693 * this functionality. Note that if per-queue settings have been modified this
694 * only represents the settings of queue 0.
696 static int iavf_get_coalesce(struct net_device *netdev,
697 struct ethtool_coalesce *ec,
698 struct kernel_ethtool_coalesce *kernel_coal,
699 struct netlink_ext_ack *extack)
701 return __iavf_get_coalesce(netdev, ec, -1);
705 * iavf_get_per_queue_coalesce - get coalesce values for specific queue
706 * @netdev: netdev to read
707 * @ec: coalesce settings from ethtool
708 * @queue: the queue to read
710 * Read specific queue's coalesce settings.
712 static int iavf_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
713 struct ethtool_coalesce *ec)
715 return __iavf_get_coalesce(netdev, ec, queue);
719 * iavf_set_itr_per_queue - set ITR values for specific queue
720 * @adapter: the VF adapter struct to set values for
721 * @ec: coalesce settings from ethtool
722 * @queue: the queue to modify
724 * Change the ITR settings for a specific queue.
726 static void iavf_set_itr_per_queue(struct iavf_adapter *adapter,
727 struct ethtool_coalesce *ec, int queue)
729 struct iavf_ring *rx_ring = &adapter->rx_rings[queue];
730 struct iavf_ring *tx_ring = &adapter->tx_rings[queue];
731 struct iavf_q_vector *q_vector;
733 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
734 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
736 rx_ring->itr_setting |= IAVF_ITR_DYNAMIC;
737 if (!ec->use_adaptive_rx_coalesce)
738 rx_ring->itr_setting ^= IAVF_ITR_DYNAMIC;
740 tx_ring->itr_setting |= IAVF_ITR_DYNAMIC;
741 if (!ec->use_adaptive_tx_coalesce)
742 tx_ring->itr_setting ^= IAVF_ITR_DYNAMIC;
744 q_vector = rx_ring->q_vector;
745 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
747 q_vector = tx_ring->q_vector;
748 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
750 /* The interrupt handler itself will take care of programming
751 * the Tx and Rx ITR values based on the values we have entered
752 * into the q_vector, no need to write the values now.
757 * __iavf_set_coalesce - set coalesce settings for particular queue
758 * @netdev: the netdev to change
759 * @ec: ethtool coalesce settings
760 * @queue: the queue to change
762 * Sets the coalesce settings for a particular queue.
764 static int __iavf_set_coalesce(struct net_device *netdev,
765 struct ethtool_coalesce *ec, int queue)
767 struct iavf_adapter *adapter = netdev_priv(netdev);
768 struct iavf_vsi *vsi = &adapter->vsi;
771 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
772 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
774 if (ec->rx_coalesce_usecs == 0) {
775 if (ec->use_adaptive_rx_coalesce)
776 netif_info(adapter, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
777 } else if ((ec->rx_coalesce_usecs < IAVF_MIN_ITR) ||
778 (ec->rx_coalesce_usecs > IAVF_MAX_ITR)) {
779 netif_info(adapter, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
781 } else if (ec->tx_coalesce_usecs == 0) {
782 if (ec->use_adaptive_tx_coalesce)
783 netif_info(adapter, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
784 } else if ((ec->tx_coalesce_usecs < IAVF_MIN_ITR) ||
785 (ec->tx_coalesce_usecs > IAVF_MAX_ITR)) {
786 netif_info(adapter, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
790 /* Rx and Tx usecs has per queue value. If user doesn't specify the
791 * queue, apply to all queues.
794 for (i = 0; i < adapter->num_active_queues; i++)
795 iavf_set_itr_per_queue(adapter, ec, i);
796 } else if (queue < adapter->num_active_queues) {
797 iavf_set_itr_per_queue(adapter, ec, queue);
799 netif_info(adapter, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
800 adapter->num_active_queues - 1);
808 * iavf_set_coalesce - Set interrupt coalescing settings
809 * @netdev: network interface device structure
810 * @ec: ethtool coalesce structure
811 * @kernel_coal: ethtool CQE mode setting structure
812 * @extack: extack for reporting error messages
814 * Change current coalescing settings for every queue.
816 static int iavf_set_coalesce(struct net_device *netdev,
817 struct ethtool_coalesce *ec,
818 struct kernel_ethtool_coalesce *kernel_coal,
819 struct netlink_ext_ack *extack)
821 return __iavf_set_coalesce(netdev, ec, -1);
825 * iavf_set_per_queue_coalesce - set specific queue's coalesce settings
826 * @netdev: the netdev to change
827 * @ec: ethtool's coalesce settings
828 * @queue: the queue to modify
830 * Modifies a specific queue's coalesce settings.
832 static int iavf_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
833 struct ethtool_coalesce *ec)
835 return __iavf_set_coalesce(netdev, ec, queue);
839 * iavf_fltr_to_ethtool_flow - convert filter type values to ethtool
841 * @flow: filter type to be converted
843 * Returns the corresponding ethtool flow type.
845 static int iavf_fltr_to_ethtool_flow(enum iavf_fdir_flow_type flow)
848 case IAVF_FDIR_FLOW_IPV4_TCP:
850 case IAVF_FDIR_FLOW_IPV4_UDP:
852 case IAVF_FDIR_FLOW_IPV4_SCTP:
854 case IAVF_FDIR_FLOW_IPV4_AH:
856 case IAVF_FDIR_FLOW_IPV4_ESP:
858 case IAVF_FDIR_FLOW_IPV4_OTHER:
859 return IPV4_USER_FLOW;
860 case IAVF_FDIR_FLOW_IPV6_TCP:
862 case IAVF_FDIR_FLOW_IPV6_UDP:
864 case IAVF_FDIR_FLOW_IPV6_SCTP:
866 case IAVF_FDIR_FLOW_IPV6_AH:
868 case IAVF_FDIR_FLOW_IPV6_ESP:
870 case IAVF_FDIR_FLOW_IPV6_OTHER:
871 return IPV6_USER_FLOW;
872 case IAVF_FDIR_FLOW_NON_IP_L2:
875 /* 0 is undefined ethtool flow */
881 * iavf_ethtool_flow_to_fltr - convert ethtool flow type to filter enum
882 * @eth: Ethtool flow type to be converted
886 static enum iavf_fdir_flow_type iavf_ethtool_flow_to_fltr(int eth)
890 return IAVF_FDIR_FLOW_IPV4_TCP;
892 return IAVF_FDIR_FLOW_IPV4_UDP;
894 return IAVF_FDIR_FLOW_IPV4_SCTP;
896 return IAVF_FDIR_FLOW_IPV4_AH;
898 return IAVF_FDIR_FLOW_IPV4_ESP;
900 return IAVF_FDIR_FLOW_IPV4_OTHER;
902 return IAVF_FDIR_FLOW_IPV6_TCP;
904 return IAVF_FDIR_FLOW_IPV6_UDP;
906 return IAVF_FDIR_FLOW_IPV6_SCTP;
908 return IAVF_FDIR_FLOW_IPV6_AH;
910 return IAVF_FDIR_FLOW_IPV6_ESP;
912 return IAVF_FDIR_FLOW_IPV6_OTHER;
914 return IAVF_FDIR_FLOW_NON_IP_L2;
916 return IAVF_FDIR_FLOW_NONE;
921 * iavf_is_mask_valid - check mask field set
922 * @mask: full mask to check
923 * @field: field for which mask should be valid
925 * If the mask is fully set return true. If it is not valid for field return
928 static bool iavf_is_mask_valid(u64 mask, u64 field)
930 return (mask & field) == field;
934 * iavf_parse_rx_flow_user_data - deconstruct user-defined data
935 * @fsp: pointer to ethtool Rx flow specification
936 * @fltr: pointer to Flow Director filter for userdef data storage
938 * Returns 0 on success, negative error value on failure
941 iavf_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
942 struct iavf_fdir_fltr *fltr)
944 struct iavf_flex_word *flex;
947 if (!(fsp->flow_type & FLOW_EXT))
950 for (i = 0; i < IAVF_FLEX_WORD_NUM; i++) {
951 #define IAVF_USERDEF_FLEX_WORD_M GENMASK(15, 0)
952 #define IAVF_USERDEF_FLEX_OFFS_S 16
953 #define IAVF_USERDEF_FLEX_OFFS_M GENMASK(31, IAVF_USERDEF_FLEX_OFFS_S)
954 #define IAVF_USERDEF_FLEX_FLTR_M GENMASK(31, 0)
955 u32 value = be32_to_cpu(fsp->h_ext.data[i]);
956 u32 mask = be32_to_cpu(fsp->m_ext.data[i]);
961 if (!iavf_is_mask_valid(mask, IAVF_USERDEF_FLEX_FLTR_M))
964 /* 504 is the maximum value for offsets, and offset is measured
965 * from the start of the MAC address.
967 #define IAVF_USERDEF_FLEX_MAX_OFFS_VAL 504
968 flex = &fltr->flex_words[cnt++];
969 flex->word = value & IAVF_USERDEF_FLEX_WORD_M;
970 flex->offset = (value & IAVF_USERDEF_FLEX_OFFS_M) >>
971 IAVF_USERDEF_FLEX_OFFS_S;
972 if (flex->offset > IAVF_USERDEF_FLEX_MAX_OFFS_VAL)
976 fltr->flex_cnt = cnt;
982 * iavf_fill_rx_flow_ext_data - fill the additional data
983 * @fsp: pointer to ethtool Rx flow specification
984 * @fltr: pointer to Flow Director filter to get additional data
987 iavf_fill_rx_flow_ext_data(struct ethtool_rx_flow_spec *fsp,
988 struct iavf_fdir_fltr *fltr)
990 if (!fltr->ext_mask.usr_def[0] && !fltr->ext_mask.usr_def[1])
993 fsp->flow_type |= FLOW_EXT;
995 memcpy(fsp->h_ext.data, fltr->ext_data.usr_def, sizeof(fsp->h_ext.data));
996 memcpy(fsp->m_ext.data, fltr->ext_mask.usr_def, sizeof(fsp->m_ext.data));
1000 * iavf_get_ethtool_fdir_entry - fill ethtool structure with Flow Director filter data
1001 * @adapter: the VF adapter structure that contains filter list
1002 * @cmd: ethtool command data structure to receive the filter data
1004 * Returns 0 as expected for success by ethtool
1007 iavf_get_ethtool_fdir_entry(struct iavf_adapter *adapter,
1008 struct ethtool_rxnfc *cmd)
1010 struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
1011 struct iavf_fdir_fltr *rule = NULL;
1014 if (!FDIR_FLTR_SUPPORT(adapter))
1017 spin_lock_bh(&adapter->fdir_fltr_lock);
1019 rule = iavf_find_fdir_fltr_by_loc(adapter, fsp->location);
1025 fsp->flow_type = iavf_fltr_to_ethtool_flow(rule->flow_type);
1027 memset(&fsp->m_u, 0, sizeof(fsp->m_u));
1028 memset(&fsp->m_ext, 0, sizeof(fsp->m_ext));
1030 switch (fsp->flow_type) {
1034 fsp->h_u.tcp_ip4_spec.ip4src = rule->ip_data.v4_addrs.src_ip;
1035 fsp->h_u.tcp_ip4_spec.ip4dst = rule->ip_data.v4_addrs.dst_ip;
1036 fsp->h_u.tcp_ip4_spec.psrc = rule->ip_data.src_port;
1037 fsp->h_u.tcp_ip4_spec.pdst = rule->ip_data.dst_port;
1038 fsp->h_u.tcp_ip4_spec.tos = rule->ip_data.tos;
1039 fsp->m_u.tcp_ip4_spec.ip4src = rule->ip_mask.v4_addrs.src_ip;
1040 fsp->m_u.tcp_ip4_spec.ip4dst = rule->ip_mask.v4_addrs.dst_ip;
1041 fsp->m_u.tcp_ip4_spec.psrc = rule->ip_mask.src_port;
1042 fsp->m_u.tcp_ip4_spec.pdst = rule->ip_mask.dst_port;
1043 fsp->m_u.tcp_ip4_spec.tos = rule->ip_mask.tos;
1047 fsp->h_u.ah_ip4_spec.ip4src = rule->ip_data.v4_addrs.src_ip;
1048 fsp->h_u.ah_ip4_spec.ip4dst = rule->ip_data.v4_addrs.dst_ip;
1049 fsp->h_u.ah_ip4_spec.spi = rule->ip_data.spi;
1050 fsp->h_u.ah_ip4_spec.tos = rule->ip_data.tos;
1051 fsp->m_u.ah_ip4_spec.ip4src = rule->ip_mask.v4_addrs.src_ip;
1052 fsp->m_u.ah_ip4_spec.ip4dst = rule->ip_mask.v4_addrs.dst_ip;
1053 fsp->m_u.ah_ip4_spec.spi = rule->ip_mask.spi;
1054 fsp->m_u.ah_ip4_spec.tos = rule->ip_mask.tos;
1056 case IPV4_USER_FLOW:
1057 fsp->h_u.usr_ip4_spec.ip4src = rule->ip_data.v4_addrs.src_ip;
1058 fsp->h_u.usr_ip4_spec.ip4dst = rule->ip_data.v4_addrs.dst_ip;
1059 fsp->h_u.usr_ip4_spec.l4_4_bytes = rule->ip_data.l4_header;
1060 fsp->h_u.usr_ip4_spec.tos = rule->ip_data.tos;
1061 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
1062 fsp->h_u.usr_ip4_spec.proto = rule->ip_data.proto;
1063 fsp->m_u.usr_ip4_spec.ip4src = rule->ip_mask.v4_addrs.src_ip;
1064 fsp->m_u.usr_ip4_spec.ip4dst = rule->ip_mask.v4_addrs.dst_ip;
1065 fsp->m_u.usr_ip4_spec.l4_4_bytes = rule->ip_mask.l4_header;
1066 fsp->m_u.usr_ip4_spec.tos = rule->ip_mask.tos;
1067 fsp->m_u.usr_ip4_spec.ip_ver = 0xFF;
1068 fsp->m_u.usr_ip4_spec.proto = rule->ip_mask.proto;
1073 memcpy(fsp->h_u.usr_ip6_spec.ip6src, &rule->ip_data.v6_addrs.src_ip,
1074 sizeof(struct in6_addr));
1075 memcpy(fsp->h_u.usr_ip6_spec.ip6dst, &rule->ip_data.v6_addrs.dst_ip,
1076 sizeof(struct in6_addr));
1077 fsp->h_u.tcp_ip6_spec.psrc = rule->ip_data.src_port;
1078 fsp->h_u.tcp_ip6_spec.pdst = rule->ip_data.dst_port;
1079 fsp->h_u.tcp_ip6_spec.tclass = rule->ip_data.tclass;
1080 memcpy(fsp->m_u.usr_ip6_spec.ip6src, &rule->ip_mask.v6_addrs.src_ip,
1081 sizeof(struct in6_addr));
1082 memcpy(fsp->m_u.usr_ip6_spec.ip6dst, &rule->ip_mask.v6_addrs.dst_ip,
1083 sizeof(struct in6_addr));
1084 fsp->m_u.tcp_ip6_spec.psrc = rule->ip_mask.src_port;
1085 fsp->m_u.tcp_ip6_spec.pdst = rule->ip_mask.dst_port;
1086 fsp->m_u.tcp_ip6_spec.tclass = rule->ip_mask.tclass;
1090 memcpy(fsp->h_u.ah_ip6_spec.ip6src, &rule->ip_data.v6_addrs.src_ip,
1091 sizeof(struct in6_addr));
1092 memcpy(fsp->h_u.ah_ip6_spec.ip6dst, &rule->ip_data.v6_addrs.dst_ip,
1093 sizeof(struct in6_addr));
1094 fsp->h_u.ah_ip6_spec.spi = rule->ip_data.spi;
1095 fsp->h_u.ah_ip6_spec.tclass = rule->ip_data.tclass;
1096 memcpy(fsp->m_u.ah_ip6_spec.ip6src, &rule->ip_mask.v6_addrs.src_ip,
1097 sizeof(struct in6_addr));
1098 memcpy(fsp->m_u.ah_ip6_spec.ip6dst, &rule->ip_mask.v6_addrs.dst_ip,
1099 sizeof(struct in6_addr));
1100 fsp->m_u.ah_ip6_spec.spi = rule->ip_mask.spi;
1101 fsp->m_u.ah_ip6_spec.tclass = rule->ip_mask.tclass;
1103 case IPV6_USER_FLOW:
1104 memcpy(fsp->h_u.usr_ip6_spec.ip6src, &rule->ip_data.v6_addrs.src_ip,
1105 sizeof(struct in6_addr));
1106 memcpy(fsp->h_u.usr_ip6_spec.ip6dst, &rule->ip_data.v6_addrs.dst_ip,
1107 sizeof(struct in6_addr));
1108 fsp->h_u.usr_ip6_spec.l4_4_bytes = rule->ip_data.l4_header;
1109 fsp->h_u.usr_ip6_spec.tclass = rule->ip_data.tclass;
1110 fsp->h_u.usr_ip6_spec.l4_proto = rule->ip_data.proto;
1111 memcpy(fsp->m_u.usr_ip6_spec.ip6src, &rule->ip_mask.v6_addrs.src_ip,
1112 sizeof(struct in6_addr));
1113 memcpy(fsp->m_u.usr_ip6_spec.ip6dst, &rule->ip_mask.v6_addrs.dst_ip,
1114 sizeof(struct in6_addr));
1115 fsp->m_u.usr_ip6_spec.l4_4_bytes = rule->ip_mask.l4_header;
1116 fsp->m_u.usr_ip6_spec.tclass = rule->ip_mask.tclass;
1117 fsp->m_u.usr_ip6_spec.l4_proto = rule->ip_mask.proto;
1120 fsp->h_u.ether_spec.h_proto = rule->eth_data.etype;
1121 fsp->m_u.ether_spec.h_proto = rule->eth_mask.etype;
1128 iavf_fill_rx_flow_ext_data(fsp, rule);
1130 if (rule->action == VIRTCHNL_ACTION_DROP)
1131 fsp->ring_cookie = RX_CLS_FLOW_DISC;
1133 fsp->ring_cookie = rule->q_index;
1136 spin_unlock_bh(&adapter->fdir_fltr_lock);
1141 * iavf_get_fdir_fltr_ids - fill buffer with filter IDs of active filters
1142 * @adapter: the VF adapter structure containing the filter list
1143 * @cmd: ethtool command data structure
1144 * @rule_locs: ethtool array passed in from OS to receive filter IDs
1146 * Returns 0 as expected for success by ethtool
1149 iavf_get_fdir_fltr_ids(struct iavf_adapter *adapter, struct ethtool_rxnfc *cmd,
1152 struct iavf_fdir_fltr *fltr;
1153 unsigned int cnt = 0;
1156 if (!FDIR_FLTR_SUPPORT(adapter))
1159 cmd->data = IAVF_MAX_FDIR_FILTERS;
1161 spin_lock_bh(&adapter->fdir_fltr_lock);
1163 list_for_each_entry(fltr, &adapter->fdir_list_head, list) {
1164 if (cnt == cmd->rule_cnt) {
1168 rule_locs[cnt] = fltr->loc;
1173 spin_unlock_bh(&adapter->fdir_fltr_lock);
1175 cmd->rule_cnt = cnt;
1181 * iavf_add_fdir_fltr_info - Set the input set for Flow Director filter
1182 * @adapter: pointer to the VF adapter structure
1183 * @fsp: pointer to ethtool Rx flow specification
1184 * @fltr: filter structure
1187 iavf_add_fdir_fltr_info(struct iavf_adapter *adapter, struct ethtool_rx_flow_spec *fsp,
1188 struct iavf_fdir_fltr *fltr)
1190 u32 flow_type, q_index = 0;
1191 enum virtchnl_action act;
1194 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
1195 act = VIRTCHNL_ACTION_DROP;
1197 q_index = fsp->ring_cookie;
1198 if (q_index >= adapter->num_active_queues)
1201 act = VIRTCHNL_ACTION_QUEUE;
1205 fltr->loc = fsp->location;
1206 fltr->q_index = q_index;
1208 if (fsp->flow_type & FLOW_EXT) {
1209 memcpy(fltr->ext_data.usr_def, fsp->h_ext.data,
1210 sizeof(fltr->ext_data.usr_def));
1211 memcpy(fltr->ext_mask.usr_def, fsp->m_ext.data,
1212 sizeof(fltr->ext_mask.usr_def));
1215 flow_type = fsp->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS);
1216 fltr->flow_type = iavf_ethtool_flow_to_fltr(flow_type);
1218 switch (flow_type) {
1222 fltr->ip_data.v4_addrs.src_ip = fsp->h_u.tcp_ip4_spec.ip4src;
1223 fltr->ip_data.v4_addrs.dst_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
1224 fltr->ip_data.src_port = fsp->h_u.tcp_ip4_spec.psrc;
1225 fltr->ip_data.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
1226 fltr->ip_data.tos = fsp->h_u.tcp_ip4_spec.tos;
1227 fltr->ip_mask.v4_addrs.src_ip = fsp->m_u.tcp_ip4_spec.ip4src;
1228 fltr->ip_mask.v4_addrs.dst_ip = fsp->m_u.tcp_ip4_spec.ip4dst;
1229 fltr->ip_mask.src_port = fsp->m_u.tcp_ip4_spec.psrc;
1230 fltr->ip_mask.dst_port = fsp->m_u.tcp_ip4_spec.pdst;
1231 fltr->ip_mask.tos = fsp->m_u.tcp_ip4_spec.tos;
1235 fltr->ip_data.v4_addrs.src_ip = fsp->h_u.ah_ip4_spec.ip4src;
1236 fltr->ip_data.v4_addrs.dst_ip = fsp->h_u.ah_ip4_spec.ip4dst;
1237 fltr->ip_data.spi = fsp->h_u.ah_ip4_spec.spi;
1238 fltr->ip_data.tos = fsp->h_u.ah_ip4_spec.tos;
1239 fltr->ip_mask.v4_addrs.src_ip = fsp->m_u.ah_ip4_spec.ip4src;
1240 fltr->ip_mask.v4_addrs.dst_ip = fsp->m_u.ah_ip4_spec.ip4dst;
1241 fltr->ip_mask.spi = fsp->m_u.ah_ip4_spec.spi;
1242 fltr->ip_mask.tos = fsp->m_u.ah_ip4_spec.tos;
1244 case IPV4_USER_FLOW:
1245 fltr->ip_data.v4_addrs.src_ip = fsp->h_u.usr_ip4_spec.ip4src;
1246 fltr->ip_data.v4_addrs.dst_ip = fsp->h_u.usr_ip4_spec.ip4dst;
1247 fltr->ip_data.l4_header = fsp->h_u.usr_ip4_spec.l4_4_bytes;
1248 fltr->ip_data.tos = fsp->h_u.usr_ip4_spec.tos;
1249 fltr->ip_data.proto = fsp->h_u.usr_ip4_spec.proto;
1250 fltr->ip_mask.v4_addrs.src_ip = fsp->m_u.usr_ip4_spec.ip4src;
1251 fltr->ip_mask.v4_addrs.dst_ip = fsp->m_u.usr_ip4_spec.ip4dst;
1252 fltr->ip_mask.l4_header = fsp->m_u.usr_ip4_spec.l4_4_bytes;
1253 fltr->ip_mask.tos = fsp->m_u.usr_ip4_spec.tos;
1254 fltr->ip_mask.proto = fsp->m_u.usr_ip4_spec.proto;
1259 memcpy(&fltr->ip_data.v6_addrs.src_ip, fsp->h_u.usr_ip6_spec.ip6src,
1260 sizeof(struct in6_addr));
1261 memcpy(&fltr->ip_data.v6_addrs.dst_ip, fsp->h_u.usr_ip6_spec.ip6dst,
1262 sizeof(struct in6_addr));
1263 fltr->ip_data.src_port = fsp->h_u.tcp_ip6_spec.psrc;
1264 fltr->ip_data.dst_port = fsp->h_u.tcp_ip6_spec.pdst;
1265 fltr->ip_data.tclass = fsp->h_u.tcp_ip6_spec.tclass;
1266 memcpy(&fltr->ip_mask.v6_addrs.src_ip, fsp->m_u.usr_ip6_spec.ip6src,
1267 sizeof(struct in6_addr));
1268 memcpy(&fltr->ip_mask.v6_addrs.dst_ip, fsp->m_u.usr_ip6_spec.ip6dst,
1269 sizeof(struct in6_addr));
1270 fltr->ip_mask.src_port = fsp->m_u.tcp_ip6_spec.psrc;
1271 fltr->ip_mask.dst_port = fsp->m_u.tcp_ip6_spec.pdst;
1272 fltr->ip_mask.tclass = fsp->m_u.tcp_ip6_spec.tclass;
1276 memcpy(&fltr->ip_data.v6_addrs.src_ip, fsp->h_u.ah_ip6_spec.ip6src,
1277 sizeof(struct in6_addr));
1278 memcpy(&fltr->ip_data.v6_addrs.dst_ip, fsp->h_u.ah_ip6_spec.ip6dst,
1279 sizeof(struct in6_addr));
1280 fltr->ip_data.spi = fsp->h_u.ah_ip6_spec.spi;
1281 fltr->ip_data.tclass = fsp->h_u.ah_ip6_spec.tclass;
1282 memcpy(&fltr->ip_mask.v6_addrs.src_ip, fsp->m_u.ah_ip6_spec.ip6src,
1283 sizeof(struct in6_addr));
1284 memcpy(&fltr->ip_mask.v6_addrs.dst_ip, fsp->m_u.ah_ip6_spec.ip6dst,
1285 sizeof(struct in6_addr));
1286 fltr->ip_mask.spi = fsp->m_u.ah_ip6_spec.spi;
1287 fltr->ip_mask.tclass = fsp->m_u.ah_ip6_spec.tclass;
1289 case IPV6_USER_FLOW:
1290 memcpy(&fltr->ip_data.v6_addrs.src_ip, fsp->h_u.usr_ip6_spec.ip6src,
1291 sizeof(struct in6_addr));
1292 memcpy(&fltr->ip_data.v6_addrs.dst_ip, fsp->h_u.usr_ip6_spec.ip6dst,
1293 sizeof(struct in6_addr));
1294 fltr->ip_data.l4_header = fsp->h_u.usr_ip6_spec.l4_4_bytes;
1295 fltr->ip_data.tclass = fsp->h_u.usr_ip6_spec.tclass;
1296 fltr->ip_data.proto = fsp->h_u.usr_ip6_spec.l4_proto;
1297 memcpy(&fltr->ip_mask.v6_addrs.src_ip, fsp->m_u.usr_ip6_spec.ip6src,
1298 sizeof(struct in6_addr));
1299 memcpy(&fltr->ip_mask.v6_addrs.dst_ip, fsp->m_u.usr_ip6_spec.ip6dst,
1300 sizeof(struct in6_addr));
1301 fltr->ip_mask.l4_header = fsp->m_u.usr_ip6_spec.l4_4_bytes;
1302 fltr->ip_mask.tclass = fsp->m_u.usr_ip6_spec.tclass;
1303 fltr->ip_mask.proto = fsp->m_u.usr_ip6_spec.l4_proto;
1306 fltr->eth_data.etype = fsp->h_u.ether_spec.h_proto;
1307 fltr->eth_mask.etype = fsp->m_u.ether_spec.h_proto;
1310 /* not doing un-parsed flow types */
1314 if (iavf_fdir_is_dup_fltr(adapter, fltr))
1317 err = iavf_parse_rx_flow_user_data(fsp, fltr);
1321 return iavf_fill_fdir_add_msg(adapter, fltr);
1325 * iavf_add_fdir_ethtool - add Flow Director filter
1326 * @adapter: pointer to the VF adapter structure
1327 * @cmd: command to add Flow Director filter
1329 * Returns 0 on success and negative values for failure
1331 static int iavf_add_fdir_ethtool(struct iavf_adapter *adapter, struct ethtool_rxnfc *cmd)
1333 struct ethtool_rx_flow_spec *fsp = &cmd->fs;
1334 struct iavf_fdir_fltr *fltr;
1338 if (!FDIR_FLTR_SUPPORT(adapter))
1341 if (fsp->flow_type & FLOW_MAC_EXT)
1344 if (adapter->fdir_active_fltr >= IAVF_MAX_FDIR_FILTERS) {
1345 dev_err(&adapter->pdev->dev,
1346 "Unable to add Flow Director filter because VF reached the limit of max allowed filters (%u)\n",
1347 IAVF_MAX_FDIR_FILTERS);
1351 spin_lock_bh(&adapter->fdir_fltr_lock);
1352 if (iavf_find_fdir_fltr_by_loc(adapter, fsp->location)) {
1353 dev_err(&adapter->pdev->dev, "Failed to add Flow Director filter, it already exists\n");
1354 spin_unlock_bh(&adapter->fdir_fltr_lock);
1357 spin_unlock_bh(&adapter->fdir_fltr_lock);
1359 fltr = kzalloc(sizeof(*fltr), GFP_KERNEL);
1363 while (!mutex_trylock(&adapter->crit_lock)) {
1371 err = iavf_add_fdir_fltr_info(adapter, fsp, fltr);
1375 spin_lock_bh(&adapter->fdir_fltr_lock);
1376 iavf_fdir_list_add_fltr(adapter, fltr);
1377 adapter->fdir_active_fltr++;
1378 fltr->state = IAVF_FDIR_FLTR_ADD_REQUEST;
1379 adapter->aq_required |= IAVF_FLAG_AQ_ADD_FDIR_FILTER;
1380 spin_unlock_bh(&adapter->fdir_fltr_lock);
1382 mod_delayed_work(iavf_wq, &adapter->watchdog_task, 0);
1388 mutex_unlock(&adapter->crit_lock);
1393 * iavf_del_fdir_ethtool - delete Flow Director filter
1394 * @adapter: pointer to the VF adapter structure
1395 * @cmd: command to delete Flow Director filter
1397 * Returns 0 on success and negative values for failure
1399 static int iavf_del_fdir_ethtool(struct iavf_adapter *adapter, struct ethtool_rxnfc *cmd)
1401 struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
1402 struct iavf_fdir_fltr *fltr = NULL;
1405 if (!FDIR_FLTR_SUPPORT(adapter))
1408 spin_lock_bh(&adapter->fdir_fltr_lock);
1409 fltr = iavf_find_fdir_fltr_by_loc(adapter, fsp->location);
1411 if (fltr->state == IAVF_FDIR_FLTR_ACTIVE) {
1412 fltr->state = IAVF_FDIR_FLTR_DEL_REQUEST;
1413 adapter->aq_required |= IAVF_FLAG_AQ_DEL_FDIR_FILTER;
1417 } else if (adapter->fdir_active_fltr) {
1420 spin_unlock_bh(&adapter->fdir_fltr_lock);
1422 if (fltr && fltr->state == IAVF_FDIR_FLTR_DEL_REQUEST)
1423 mod_delayed_work(iavf_wq, &adapter->watchdog_task, 0);
1429 * iavf_adv_rss_parse_hdrs - parses headers from RSS hash input
1430 * @cmd: ethtool rxnfc command
1432 * This function parses the rxnfc command and returns intended
1433 * header types for RSS configuration
1435 static u32 iavf_adv_rss_parse_hdrs(struct ethtool_rxnfc *cmd)
1437 u32 hdrs = IAVF_ADV_RSS_FLOW_SEG_HDR_NONE;
1439 switch (cmd->flow_type) {
1441 hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_TCP |
1442 IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4;
1445 hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_UDP |
1446 IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4;
1449 hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP |
1450 IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4;
1453 hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_TCP |
1454 IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
1457 hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_UDP |
1458 IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
1461 hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP |
1462 IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
1472 * iavf_adv_rss_parse_hash_flds - parses hash fields from RSS hash input
1473 * @cmd: ethtool rxnfc command
1475 * This function parses the rxnfc command and returns intended hash fields for
1478 static u64 iavf_adv_rss_parse_hash_flds(struct ethtool_rxnfc *cmd)
1480 u64 hfld = IAVF_ADV_RSS_HASH_INVALID;
1482 if (cmd->data & RXH_IP_SRC || cmd->data & RXH_IP_DST) {
1483 switch (cmd->flow_type) {
1487 if (cmd->data & RXH_IP_SRC)
1488 hfld |= IAVF_ADV_RSS_HASH_FLD_IPV4_SA;
1489 if (cmd->data & RXH_IP_DST)
1490 hfld |= IAVF_ADV_RSS_HASH_FLD_IPV4_DA;
1495 if (cmd->data & RXH_IP_SRC)
1496 hfld |= IAVF_ADV_RSS_HASH_FLD_IPV6_SA;
1497 if (cmd->data & RXH_IP_DST)
1498 hfld |= IAVF_ADV_RSS_HASH_FLD_IPV6_DA;
1505 if (cmd->data & RXH_L4_B_0_1 || cmd->data & RXH_L4_B_2_3) {
1506 switch (cmd->flow_type) {
1509 if (cmd->data & RXH_L4_B_0_1)
1510 hfld |= IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT;
1511 if (cmd->data & RXH_L4_B_2_3)
1512 hfld |= IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT;
1516 if (cmd->data & RXH_L4_B_0_1)
1517 hfld |= IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT;
1518 if (cmd->data & RXH_L4_B_2_3)
1519 hfld |= IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT;
1523 if (cmd->data & RXH_L4_B_0_1)
1524 hfld |= IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT;
1525 if (cmd->data & RXH_L4_B_2_3)
1526 hfld |= IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT;
1537 * iavf_set_adv_rss_hash_opt - Enable/Disable flow types for RSS hash
1538 * @adapter: pointer to the VF adapter structure
1539 * @cmd: ethtool rxnfc command
1541 * Returns Success if the flow input set is supported.
1544 iavf_set_adv_rss_hash_opt(struct iavf_adapter *adapter,
1545 struct ethtool_rxnfc *cmd)
1547 struct iavf_adv_rss *rss_old, *rss_new;
1548 bool rss_new_add = false;
1549 int count = 50, err = 0;
1553 if (!ADV_RSS_SUPPORT(adapter))
1556 hdrs = iavf_adv_rss_parse_hdrs(cmd);
1557 if (hdrs == IAVF_ADV_RSS_FLOW_SEG_HDR_NONE)
1560 hash_flds = iavf_adv_rss_parse_hash_flds(cmd);
1561 if (hash_flds == IAVF_ADV_RSS_HASH_INVALID)
1564 rss_new = kzalloc(sizeof(*rss_new), GFP_KERNEL);
1568 if (iavf_fill_adv_rss_cfg_msg(&rss_new->cfg_msg, hdrs, hash_flds)) {
1573 while (!mutex_trylock(&adapter->crit_lock)) {
1582 spin_lock_bh(&adapter->adv_rss_lock);
1583 rss_old = iavf_find_adv_rss_cfg_by_hdrs(adapter, hdrs);
1585 if (rss_old->state != IAVF_ADV_RSS_ACTIVE) {
1587 } else if (rss_old->hash_flds != hash_flds) {
1588 rss_old->state = IAVF_ADV_RSS_ADD_REQUEST;
1589 rss_old->hash_flds = hash_flds;
1590 memcpy(&rss_old->cfg_msg, &rss_new->cfg_msg,
1591 sizeof(rss_new->cfg_msg));
1592 adapter->aq_required |= IAVF_FLAG_AQ_ADD_ADV_RSS_CFG;
1598 rss_new->state = IAVF_ADV_RSS_ADD_REQUEST;
1599 rss_new->packet_hdrs = hdrs;
1600 rss_new->hash_flds = hash_flds;
1601 list_add_tail(&rss_new->list, &adapter->adv_rss_list_head);
1602 adapter->aq_required |= IAVF_FLAG_AQ_ADD_ADV_RSS_CFG;
1604 spin_unlock_bh(&adapter->adv_rss_lock);
1607 mod_delayed_work(iavf_wq, &adapter->watchdog_task, 0);
1609 mutex_unlock(&adapter->crit_lock);
1618 * iavf_get_adv_rss_hash_opt - Retrieve hash fields for a given flow-type
1619 * @adapter: pointer to the VF adapter structure
1620 * @cmd: ethtool rxnfc command
1622 * Returns Success if the flow input set is supported.
1625 iavf_get_adv_rss_hash_opt(struct iavf_adapter *adapter,
1626 struct ethtool_rxnfc *cmd)
1628 struct iavf_adv_rss *rss;
1632 if (!ADV_RSS_SUPPORT(adapter))
1637 hdrs = iavf_adv_rss_parse_hdrs(cmd);
1638 if (hdrs == IAVF_ADV_RSS_FLOW_SEG_HDR_NONE)
1641 spin_lock_bh(&adapter->adv_rss_lock);
1642 rss = iavf_find_adv_rss_cfg_by_hdrs(adapter, hdrs);
1644 hash_flds = rss->hash_flds;
1646 hash_flds = IAVF_ADV_RSS_HASH_INVALID;
1647 spin_unlock_bh(&adapter->adv_rss_lock);
1649 if (hash_flds == IAVF_ADV_RSS_HASH_INVALID)
1652 if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_IPV4_SA |
1653 IAVF_ADV_RSS_HASH_FLD_IPV6_SA))
1654 cmd->data |= (u64)RXH_IP_SRC;
1656 if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_IPV4_DA |
1657 IAVF_ADV_RSS_HASH_FLD_IPV6_DA))
1658 cmd->data |= (u64)RXH_IP_DST;
1660 if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT |
1661 IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT |
1662 IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT))
1663 cmd->data |= (u64)RXH_L4_B_0_1;
1665 if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT |
1666 IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT |
1667 IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT))
1668 cmd->data |= (u64)RXH_L4_B_2_3;
1674 * iavf_set_rxnfc - command to set Rx flow rules.
1675 * @netdev: network interface device structure
1676 * @cmd: ethtool rxnfc command
1678 * Returns 0 for success and negative values for errors
1680 static int iavf_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
1682 struct iavf_adapter *adapter = netdev_priv(netdev);
1683 int ret = -EOPNOTSUPP;
1686 case ETHTOOL_SRXCLSRLINS:
1687 ret = iavf_add_fdir_ethtool(adapter, cmd);
1689 case ETHTOOL_SRXCLSRLDEL:
1690 ret = iavf_del_fdir_ethtool(adapter, cmd);
1693 ret = iavf_set_adv_rss_hash_opt(adapter, cmd);
1703 * iavf_get_rxnfc - command to get RX flow classification rules
1704 * @netdev: network interface device structure
1705 * @cmd: ethtool rxnfc command
1706 * @rule_locs: pointer to store rule locations
1708 * Returns Success if the command is supported.
1710 static int iavf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
1713 struct iavf_adapter *adapter = netdev_priv(netdev);
1714 int ret = -EOPNOTSUPP;
1717 case ETHTOOL_GRXRINGS:
1718 cmd->data = adapter->num_active_queues;
1721 case ETHTOOL_GRXCLSRLCNT:
1722 if (!FDIR_FLTR_SUPPORT(adapter))
1724 cmd->rule_cnt = adapter->fdir_active_fltr;
1725 cmd->data = IAVF_MAX_FDIR_FILTERS;
1728 case ETHTOOL_GRXCLSRULE:
1729 ret = iavf_get_ethtool_fdir_entry(adapter, cmd);
1731 case ETHTOOL_GRXCLSRLALL:
1732 ret = iavf_get_fdir_fltr_ids(adapter, cmd, (u32 *)rule_locs);
1735 ret = iavf_get_adv_rss_hash_opt(adapter, cmd);
1744 * iavf_get_channels: get the number of channels supported by the device
1745 * @netdev: network interface device structure
1746 * @ch: channel information structure
1748 * For the purposes of our device, we only use combined channels, i.e. a tx/rx
1749 * queue pair. Report one extra channel to match our "other" MSI-X vector.
1751 static void iavf_get_channels(struct net_device *netdev,
1752 struct ethtool_channels *ch)
1754 struct iavf_adapter *adapter = netdev_priv(netdev);
1756 /* Report maximum channels */
1757 ch->max_combined = adapter->vsi_res->num_queue_pairs;
1759 ch->max_other = NONQ_VECS;
1760 ch->other_count = NONQ_VECS;
1762 ch->combined_count = adapter->num_active_queues;
1766 * iavf_set_channels: set the new channel count
1767 * @netdev: network interface device structure
1768 * @ch: channel information structure
1770 * Negotiate a new number of channels with the PF then do a reset. During
1771 * reset we'll realloc queues and fix the RSS table. Returns 0 on success,
1772 * negative on failure.
1774 static int iavf_set_channels(struct net_device *netdev,
1775 struct ethtool_channels *ch)
1777 struct iavf_adapter *adapter = netdev_priv(netdev);
1778 u32 num_req = ch->combined_count;
1780 if ((adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ) &&
1782 dev_info(&adapter->pdev->dev, "Cannot set channels since ADq is enabled.\n");
1786 /* All of these should have already been checked by ethtool before this
1787 * even gets to us, but just to be sure.
1789 if (num_req > adapter->vsi_res->num_queue_pairs)
1792 if (num_req == adapter->num_active_queues)
1795 if (ch->rx_count || ch->tx_count || ch->other_count != NONQ_VECS)
1798 adapter->num_req_queues = num_req;
1799 adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
1800 iavf_schedule_reset(adapter);
1805 * iavf_get_rxfh_key_size - get the RSS hash key size
1806 * @netdev: network interface device structure
1808 * Returns the table size.
1810 static u32 iavf_get_rxfh_key_size(struct net_device *netdev)
1812 struct iavf_adapter *adapter = netdev_priv(netdev);
1814 return adapter->rss_key_size;
1818 * iavf_get_rxfh_indir_size - get the rx flow hash indirection table size
1819 * @netdev: network interface device structure
1821 * Returns the table size.
1823 static u32 iavf_get_rxfh_indir_size(struct net_device *netdev)
1825 struct iavf_adapter *adapter = netdev_priv(netdev);
1827 return adapter->rss_lut_size;
1831 * iavf_get_rxfh - get the rx flow hash indirection table
1832 * @netdev: network interface device structure
1833 * @indir: indirection table
1835 * @hfunc: hash function in use
1837 * Reads the indirection table directly from the hardware. Always returns 0.
1839 static int iavf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1842 struct iavf_adapter *adapter = netdev_priv(netdev);
1846 *hfunc = ETH_RSS_HASH_TOP;
1850 memcpy(key, adapter->rss_key, adapter->rss_key_size);
1852 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
1853 for (i = 0; i < adapter->rss_lut_size; i++)
1854 indir[i] = (u32)adapter->rss_lut[i];
1860 * iavf_set_rxfh - set the rx flow hash indirection table
1861 * @netdev: network interface device structure
1862 * @indir: indirection table
1864 * @hfunc: hash function to use
1866 * Returns -EINVAL if the table specifies an inavlid queue id, otherwise
1867 * returns 0 after programming the table.
1869 static int iavf_set_rxfh(struct net_device *netdev, const u32 *indir,
1870 const u8 *key, const u8 hfunc)
1872 struct iavf_adapter *adapter = netdev_priv(netdev);
1875 /* We do not allow change in unsupported parameters */
1877 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1883 memcpy(adapter->rss_key, key, adapter->rss_key_size);
1885 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
1886 for (i = 0; i < adapter->rss_lut_size; i++)
1887 adapter->rss_lut[i] = (u8)(indir[i]);
1889 return iavf_config_rss(adapter);
1892 static const struct ethtool_ops iavf_ethtool_ops = {
1893 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1894 ETHTOOL_COALESCE_MAX_FRAMES |
1895 ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
1896 ETHTOOL_COALESCE_USE_ADAPTIVE,
1897 .get_drvinfo = iavf_get_drvinfo,
1898 .get_link = ethtool_op_get_link,
1899 .get_ringparam = iavf_get_ringparam,
1900 .set_ringparam = iavf_set_ringparam,
1901 .get_strings = iavf_get_strings,
1902 .get_ethtool_stats = iavf_get_ethtool_stats,
1903 .get_sset_count = iavf_get_sset_count,
1904 .get_priv_flags = iavf_get_priv_flags,
1905 .set_priv_flags = iavf_set_priv_flags,
1906 .get_msglevel = iavf_get_msglevel,
1907 .set_msglevel = iavf_set_msglevel,
1908 .get_coalesce = iavf_get_coalesce,
1909 .set_coalesce = iavf_set_coalesce,
1910 .get_per_queue_coalesce = iavf_get_per_queue_coalesce,
1911 .set_per_queue_coalesce = iavf_set_per_queue_coalesce,
1912 .set_rxnfc = iavf_set_rxnfc,
1913 .get_rxnfc = iavf_get_rxnfc,
1914 .get_rxfh_indir_size = iavf_get_rxfh_indir_size,
1915 .get_rxfh = iavf_get_rxfh,
1916 .set_rxfh = iavf_set_rxfh,
1917 .get_channels = iavf_get_channels,
1918 .set_channels = iavf_set_channels,
1919 .get_rxfh_key_size = iavf_get_rxfh_key_size,
1920 .get_link_ksettings = iavf_get_link_ksettings,
1924 * iavf_set_ethtool_ops - Initialize ethtool ops struct
1925 * @netdev: network interface device structure
1927 * Sets ethtool ops struct in our netdev so that ethtool can call
1930 void iavf_set_ethtool_ops(struct net_device *netdev)
1932 netdev->ethtool_ops = &iavf_ethtool_ops;