1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2018, Intel Corporation. */
4 /* Intel(R) Ethernet Connection E800 Series Linux Driver */
6 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8 #include <generated/utsrelease.h>
13 #include "ice_dcb_lib.h"
14 #include "ice_dcb_nl.h"
15 #include "ice_devlink.h"
16 /* Including ice_trace.h with CREATE_TRACE_POINTS defined will generate the
17 * ice tracepoint functions. This must be done exactly once across the
20 #define CREATE_TRACE_POINTS
21 #include "ice_trace.h"
22 #include "ice_eswitch.h"
23 #include "ice_tc_lib.h"
24 #include "ice_vsi_vlan_ops.h"
26 #define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver"
27 static const char ice_driver_string[] = DRV_SUMMARY;
28 static const char ice_copyright[] = "Copyright (c) 2018, Intel Corporation.";
30 /* DDP Package file located in firmware search paths (e.g. /lib/firmware/) */
31 #define ICE_DDP_PKG_PATH "intel/ice/ddp/"
32 #define ICE_DDP_PKG_FILE ICE_DDP_PKG_PATH "ice.pkg"
34 MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
35 MODULE_DESCRIPTION(DRV_SUMMARY);
36 MODULE_LICENSE("GPL v2");
37 MODULE_FIRMWARE(ICE_DDP_PKG_FILE);
39 static int debug = -1;
40 module_param(debug, int, 0644);
41 #ifndef CONFIG_DYNAMIC_DEBUG
42 MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all), hw debug_mask (0x8XXXXXXX)");
44 MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)");
45 #endif /* !CONFIG_DYNAMIC_DEBUG */
47 static DEFINE_IDA(ice_aux_ida);
48 DEFINE_STATIC_KEY_FALSE(ice_xdp_locking_key);
49 EXPORT_SYMBOL(ice_xdp_locking_key);
52 * ice_hw_to_dev - Get device pointer from the hardware structure
53 * @hw: pointer to the device HW structure
55 * Used to access the device pointer from compilation units which can't easily
56 * include the definition of struct ice_pf without leading to circular header
59 struct device *ice_hw_to_dev(struct ice_hw *hw)
61 struct ice_pf *pf = container_of(hw, struct ice_pf, hw);
63 return &pf->pdev->dev;
66 static struct workqueue_struct *ice_wq;
67 static const struct net_device_ops ice_netdev_safe_mode_ops;
68 static const struct net_device_ops ice_netdev_ops;
70 static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type);
72 static void ice_vsi_release_all(struct ice_pf *pf);
74 static int ice_rebuild_channels(struct ice_pf *pf);
75 static void ice_remove_q_channels(struct ice_vsi *vsi, bool rem_adv_fltr);
78 ice_indr_setup_tc_cb(struct net_device *netdev, struct Qdisc *sch,
79 void *cb_priv, enum tc_setup_type type, void *type_data,
81 void (*cleanup)(struct flow_block_cb *block_cb));
83 bool netif_is_ice(struct net_device *dev)
85 return dev && (dev->netdev_ops == &ice_netdev_ops);
89 * ice_get_tx_pending - returns number of Tx descriptors not processed
90 * @ring: the ring of descriptors
92 static u16 ice_get_tx_pending(struct ice_tx_ring *ring)
96 head = ring->next_to_clean;
97 tail = ring->next_to_use;
100 return (head < tail) ?
101 tail - head : (tail + ring->count - head);
106 * ice_check_for_hang_subtask - check for and recover hung queues
107 * @pf: pointer to PF struct
109 static void ice_check_for_hang_subtask(struct ice_pf *pf)
111 struct ice_vsi *vsi = NULL;
117 ice_for_each_vsi(pf, v)
118 if (pf->vsi[v] && pf->vsi[v]->type == ICE_VSI_PF) {
123 if (!vsi || test_bit(ICE_VSI_DOWN, vsi->state))
126 if (!(vsi->netdev && netif_carrier_ok(vsi->netdev)))
131 ice_for_each_txq(vsi, i) {
132 struct ice_tx_ring *tx_ring = vsi->tx_rings[i];
136 if (ice_ring_ch_enabled(tx_ring))
140 /* If packet counter has not changed the queue is
141 * likely stalled, so force an interrupt for this
144 * prev_pkt would be negative if there was no
147 packets = tx_ring->stats.pkts & INT_MAX;
148 if (tx_ring->tx_stats.prev_pkt == packets) {
149 /* Trigger sw interrupt to revive the queue */
150 ice_trigger_sw_intr(hw, tx_ring->q_vector);
154 /* Memory barrier between read of packet count and call
155 * to ice_get_tx_pending()
158 tx_ring->tx_stats.prev_pkt =
159 ice_get_tx_pending(tx_ring) ? packets : -1;
165 * ice_init_mac_fltr - Set initial MAC filters
166 * @pf: board private structure
168 * Set initial set of MAC filters for PF VSI; configure filters for permanent
169 * address and broadcast address. If an error is encountered, netdevice will be
172 static int ice_init_mac_fltr(struct ice_pf *pf)
177 vsi = ice_get_main_vsi(pf);
181 perm_addr = vsi->port_info->mac.perm_addr;
182 return ice_fltr_add_mac_and_broadcast(vsi, perm_addr, ICE_FWD_TO_VSI);
186 * ice_add_mac_to_sync_list - creates list of MAC addresses to be synced
187 * @netdev: the net device on which the sync is happening
188 * @addr: MAC address to sync
190 * This is a callback function which is called by the in kernel device sync
191 * functions (like __dev_uc_sync, __dev_mc_sync, etc). This function only
192 * populates the tmp_sync_list, which is later used by ice_add_mac to add the
193 * MAC filters from the hardware.
195 static int ice_add_mac_to_sync_list(struct net_device *netdev, const u8 *addr)
197 struct ice_netdev_priv *np = netdev_priv(netdev);
198 struct ice_vsi *vsi = np->vsi;
200 if (ice_fltr_add_mac_to_list(vsi, &vsi->tmp_sync_list, addr,
208 * ice_add_mac_to_unsync_list - creates list of MAC addresses to be unsynced
209 * @netdev: the net device on which the unsync is happening
210 * @addr: MAC address to unsync
212 * This is a callback function which is called by the in kernel device unsync
213 * functions (like __dev_uc_unsync, __dev_mc_unsync, etc). This function only
214 * populates the tmp_unsync_list, which is later used by ice_remove_mac to
215 * delete the MAC filters from the hardware.
217 static int ice_add_mac_to_unsync_list(struct net_device *netdev, const u8 *addr)
219 struct ice_netdev_priv *np = netdev_priv(netdev);
220 struct ice_vsi *vsi = np->vsi;
222 /* Under some circumstances, we might receive a request to delete our
223 * own device address from our uc list. Because we store the device
224 * address in the VSI's MAC filter list, we need to ignore such
225 * requests and not delete our device address from this list.
227 if (ether_addr_equal(addr, netdev->dev_addr))
230 if (ice_fltr_add_mac_to_list(vsi, &vsi->tmp_unsync_list, addr,
238 * ice_vsi_fltr_changed - check if filter state changed
239 * @vsi: VSI to be checked
241 * returns true if filter state has changed, false otherwise.
243 static bool ice_vsi_fltr_changed(struct ice_vsi *vsi)
245 return test_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state) ||
246 test_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);
250 * ice_set_promisc - Enable promiscuous mode for a given PF
251 * @vsi: the VSI being configured
252 * @promisc_m: mask of promiscuous config bits
255 static int ice_set_promisc(struct ice_vsi *vsi, u8 promisc_m)
259 if (vsi->type != ICE_VSI_PF)
262 if (ice_vsi_has_non_zero_vlans(vsi)) {
263 promisc_m |= (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX);
264 status = ice_fltr_set_vlan_vsi_promisc(&vsi->back->hw, vsi,
267 status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,
275 * ice_clear_promisc - Disable promiscuous mode for a given PF
276 * @vsi: the VSI being configured
277 * @promisc_m: mask of promiscuous config bits
280 static int ice_clear_promisc(struct ice_vsi *vsi, u8 promisc_m)
284 if (vsi->type != ICE_VSI_PF)
287 if (ice_vsi_has_non_zero_vlans(vsi)) {
288 promisc_m |= (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX);
289 status = ice_fltr_clear_vlan_vsi_promisc(&vsi->back->hw, vsi,
292 status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx,
300 * ice_vsi_sync_fltr - Update the VSI filter list to the HW
301 * @vsi: ptr to the VSI
303 * Push any outstanding VSI filter changes through the AdminQ.
305 static int ice_vsi_sync_fltr(struct ice_vsi *vsi)
307 struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
308 struct device *dev = ice_pf_to_dev(vsi->back);
309 struct net_device *netdev = vsi->netdev;
310 bool promisc_forced_on = false;
311 struct ice_pf *pf = vsi->back;
312 struct ice_hw *hw = &pf->hw;
313 u32 changed_flags = 0;
319 while (test_and_set_bit(ICE_CFG_BUSY, vsi->state))
320 usleep_range(1000, 2000);
322 changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags;
323 vsi->current_netdev_flags = vsi->netdev->flags;
325 INIT_LIST_HEAD(&vsi->tmp_sync_list);
326 INIT_LIST_HEAD(&vsi->tmp_unsync_list);
328 if (ice_vsi_fltr_changed(vsi)) {
329 clear_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);
330 clear_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);
332 /* grab the netdev's addr_list_lock */
333 netif_addr_lock_bh(netdev);
334 __dev_uc_sync(netdev, ice_add_mac_to_sync_list,
335 ice_add_mac_to_unsync_list);
336 __dev_mc_sync(netdev, ice_add_mac_to_sync_list,
337 ice_add_mac_to_unsync_list);
338 /* our temp lists are populated. release lock */
339 netif_addr_unlock_bh(netdev);
342 /* Remove MAC addresses in the unsync list */
343 err = ice_fltr_remove_mac_list(vsi, &vsi->tmp_unsync_list);
344 ice_fltr_free_list(dev, &vsi->tmp_unsync_list);
346 netdev_err(netdev, "Failed to delete MAC filters\n");
347 /* if we failed because of alloc failures, just bail */
352 /* Add MAC addresses in the sync list */
353 err = ice_fltr_add_mac_list(vsi, &vsi->tmp_sync_list);
354 ice_fltr_free_list(dev, &vsi->tmp_sync_list);
355 /* If filter is added successfully or already exists, do not go into
356 * 'if' condition and report it as error. Instead continue processing
357 * rest of the function.
359 if (err && err != -EEXIST) {
360 netdev_err(netdev, "Failed to add MAC filters\n");
361 /* If there is no more space for new umac filters, VSI
362 * should go into promiscuous mode. There should be some
363 * space reserved for promiscuous filters.
365 if (hw->adminq.sq_last_status == ICE_AQ_RC_ENOSPC &&
366 !test_and_set_bit(ICE_FLTR_OVERFLOW_PROMISC,
368 promisc_forced_on = true;
369 netdev_warn(netdev, "Reached MAC filter limit, forcing promisc mode on VSI %d\n",
376 /* check for changes in promiscuous modes */
377 if (changed_flags & IFF_ALLMULTI) {
378 if (vsi->current_netdev_flags & IFF_ALLMULTI) {
379 err = ice_set_promisc(vsi, ICE_MCAST_PROMISC_BITS);
381 vsi->current_netdev_flags &= ~IFF_ALLMULTI;
385 /* !(vsi->current_netdev_flags & IFF_ALLMULTI) */
386 err = ice_clear_promisc(vsi, ICE_MCAST_PROMISC_BITS);
388 vsi->current_netdev_flags |= IFF_ALLMULTI;
394 if (((changed_flags & IFF_PROMISC) || promisc_forced_on) ||
395 test_bit(ICE_VSI_PROMISC_CHANGED, vsi->state)) {
396 clear_bit(ICE_VSI_PROMISC_CHANGED, vsi->state);
397 if (vsi->current_netdev_flags & IFF_PROMISC) {
398 /* Apply Rx filter rule to get traffic from wire */
399 if (!ice_is_dflt_vsi_in_use(pf->first_sw)) {
400 err = ice_set_dflt_vsi(pf->first_sw, vsi);
401 if (err && err != -EEXIST) {
402 netdev_err(netdev, "Error %d setting default VSI %i Rx rule\n",
404 vsi->current_netdev_flags &=
409 vlan_ops->dis_rx_filtering(vsi);
412 /* Clear Rx filter to remove traffic from wire */
413 if (ice_is_vsi_dflt_vsi(pf->first_sw, vsi)) {
414 err = ice_clear_dflt_vsi(pf->first_sw);
416 netdev_err(netdev, "Error %d clearing default VSI %i Rx rule\n",
418 vsi->current_netdev_flags |=
422 if (vsi->current_netdev_flags &
423 NETIF_F_HW_VLAN_CTAG_FILTER)
424 vlan_ops->ena_rx_filtering(vsi);
431 set_bit(ICE_VSI_PROMISC_CHANGED, vsi->state);
434 /* if something went wrong then set the changed flag so we try again */
435 set_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);
436 set_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);
438 clear_bit(ICE_CFG_BUSY, vsi->state);
443 * ice_sync_fltr_subtask - Sync the VSI filter list with HW
444 * @pf: board private structure
446 static void ice_sync_fltr_subtask(struct ice_pf *pf)
450 if (!pf || !(test_bit(ICE_FLAG_FLTR_SYNC, pf->flags)))
453 clear_bit(ICE_FLAG_FLTR_SYNC, pf->flags);
455 ice_for_each_vsi(pf, v)
456 if (pf->vsi[v] && ice_vsi_fltr_changed(pf->vsi[v]) &&
457 ice_vsi_sync_fltr(pf->vsi[v])) {
458 /* come back and try again later */
459 set_bit(ICE_FLAG_FLTR_SYNC, pf->flags);
465 * ice_pf_dis_all_vsi - Pause all VSIs on a PF
467 * @locked: is the rtnl_lock already held
469 static void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked)
474 ice_for_each_vsi(pf, v)
476 ice_dis_vsi(pf->vsi[v], locked);
478 for (node = 0; node < ICE_MAX_PF_AGG_NODES; node++)
479 pf->pf_agg_node[node].num_vsis = 0;
481 for (node = 0; node < ICE_MAX_VF_AGG_NODES; node++)
482 pf->vf_agg_node[node].num_vsis = 0;
486 * ice_clear_sw_switch_recipes - clear switch recipes
487 * @pf: board private structure
489 * Mark switch recipes as not created in sw structures. There are cases where
490 * rules (especially advanced rules) need to be restored, either re-read from
491 * hardware or added again. For example after the reset. 'recp_created' flag
492 * prevents from doing that and need to be cleared upfront.
494 static void ice_clear_sw_switch_recipes(struct ice_pf *pf)
496 struct ice_sw_recipe *recp;
499 recp = pf->hw.switch_info->recp_list;
500 for (i = 0; i < ICE_MAX_NUM_RECIPES; i++)
501 recp[i].recp_created = false;
505 * ice_prepare_for_reset - prep for reset
506 * @pf: board private structure
507 * @reset_type: reset type requested
509 * Inform or close all dependent features in prep for reset.
512 ice_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type)
514 struct ice_hw *hw = &pf->hw;
519 dev_dbg(ice_pf_to_dev(pf), "reset_type=%d\n", reset_type);
521 /* already prepared for reset */
522 if (test_bit(ICE_PREPARED_FOR_RESET, pf->state))
525 ice_unplug_aux_dev(pf);
527 /* Notify VFs of impending reset */
528 if (ice_check_sq_alive(hw, &hw->mailboxq))
529 ice_vc_notify_reset(pf);
531 /* Disable VFs until reset is completed */
532 mutex_lock(&pf->vfs.table_lock);
533 ice_for_each_vf(pf, bkt, vf)
534 ice_set_vf_state_qs_dis(vf);
535 mutex_unlock(&pf->vfs.table_lock);
537 if (ice_is_eswitch_mode_switchdev(pf)) {
538 if (reset_type != ICE_RESET_PFR)
539 ice_clear_sw_switch_recipes(pf);
542 /* release ADQ specific HW and SW resources */
543 vsi = ice_get_main_vsi(pf);
547 /* to be on safe side, reset orig_rss_size so that normal flow
548 * of deciding rss_size can take precedence
550 vsi->orig_rss_size = 0;
552 if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) {
553 if (reset_type == ICE_RESET_PFR) {
554 vsi->old_ena_tc = vsi->all_enatc;
555 vsi->old_numtc = vsi->all_numtc;
557 ice_remove_q_channels(vsi, true);
559 /* for other reset type, do not support channel rebuild
560 * hence reset needed info
568 clear_bit(ICE_FLAG_TC_MQPRIO, pf->flags);
569 memset(&vsi->mqprio_qopt, 0, sizeof(vsi->mqprio_qopt));
574 /* clear SW filtering DB */
575 ice_clear_hw_tbls(hw);
576 /* disable the VSIs and their queues that are not already DOWN */
577 ice_pf_dis_all_vsi(pf, false);
579 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
580 ice_ptp_prepare_for_reset(pf);
582 if (ice_is_feature_supported(pf, ICE_F_GNSS))
586 ice_sched_clear_port(hw->port_info);
588 ice_shutdown_all_ctrlq(hw);
590 set_bit(ICE_PREPARED_FOR_RESET, pf->state);
594 * ice_do_reset - Initiate one of many types of resets
595 * @pf: board private structure
596 * @reset_type: reset type requested before this function was called.
598 static void ice_do_reset(struct ice_pf *pf, enum ice_reset_req reset_type)
600 struct device *dev = ice_pf_to_dev(pf);
601 struct ice_hw *hw = &pf->hw;
603 dev_dbg(dev, "reset_type 0x%x requested\n", reset_type);
605 ice_prepare_for_reset(pf, reset_type);
607 /* trigger the reset */
608 if (ice_reset(hw, reset_type)) {
609 dev_err(dev, "reset %d failed\n", reset_type);
610 set_bit(ICE_RESET_FAILED, pf->state);
611 clear_bit(ICE_RESET_OICR_RECV, pf->state);
612 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);
613 clear_bit(ICE_PFR_REQ, pf->state);
614 clear_bit(ICE_CORER_REQ, pf->state);
615 clear_bit(ICE_GLOBR_REQ, pf->state);
616 wake_up(&pf->reset_wait_queue);
620 /* PFR is a bit of a special case because it doesn't result in an OICR
621 * interrupt. So for PFR, rebuild after the reset and clear the reset-
622 * associated state bits.
624 if (reset_type == ICE_RESET_PFR) {
626 ice_rebuild(pf, reset_type);
627 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);
628 clear_bit(ICE_PFR_REQ, pf->state);
629 wake_up(&pf->reset_wait_queue);
630 ice_reset_all_vfs(pf);
635 * ice_reset_subtask - Set up for resetting the device and driver
636 * @pf: board private structure
638 static void ice_reset_subtask(struct ice_pf *pf)
640 enum ice_reset_req reset_type = ICE_RESET_INVAL;
642 /* When a CORER/GLOBR/EMPR is about to happen, the hardware triggers an
643 * OICR interrupt. The OICR handler (ice_misc_intr) determines what type
644 * of reset is pending and sets bits in pf->state indicating the reset
645 * type and ICE_RESET_OICR_RECV. So, if the latter bit is set
646 * prepare for pending reset if not already (for PF software-initiated
647 * global resets the software should already be prepared for it as
648 * indicated by ICE_PREPARED_FOR_RESET; for global resets initiated
649 * by firmware or software on other PFs, that bit is not set so prepare
650 * for the reset now), poll for reset done, rebuild and return.
652 if (test_bit(ICE_RESET_OICR_RECV, pf->state)) {
653 /* Perform the largest reset requested */
654 if (test_and_clear_bit(ICE_CORER_RECV, pf->state))
655 reset_type = ICE_RESET_CORER;
656 if (test_and_clear_bit(ICE_GLOBR_RECV, pf->state))
657 reset_type = ICE_RESET_GLOBR;
658 if (test_and_clear_bit(ICE_EMPR_RECV, pf->state))
659 reset_type = ICE_RESET_EMPR;
660 /* return if no valid reset type requested */
661 if (reset_type == ICE_RESET_INVAL)
663 ice_prepare_for_reset(pf, reset_type);
665 /* make sure we are ready to rebuild */
666 if (ice_check_reset(&pf->hw)) {
667 set_bit(ICE_RESET_FAILED, pf->state);
669 /* done with reset. start rebuild */
670 pf->hw.reset_ongoing = false;
671 ice_rebuild(pf, reset_type);
672 /* clear bit to resume normal operations, but
673 * ICE_NEEDS_RESTART bit is set in case rebuild failed
675 clear_bit(ICE_RESET_OICR_RECV, pf->state);
676 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);
677 clear_bit(ICE_PFR_REQ, pf->state);
678 clear_bit(ICE_CORER_REQ, pf->state);
679 clear_bit(ICE_GLOBR_REQ, pf->state);
680 wake_up(&pf->reset_wait_queue);
681 ice_reset_all_vfs(pf);
687 /* No pending resets to finish processing. Check for new resets */
688 if (test_bit(ICE_PFR_REQ, pf->state))
689 reset_type = ICE_RESET_PFR;
690 if (test_bit(ICE_CORER_REQ, pf->state))
691 reset_type = ICE_RESET_CORER;
692 if (test_bit(ICE_GLOBR_REQ, pf->state))
693 reset_type = ICE_RESET_GLOBR;
694 /* If no valid reset type requested just return */
695 if (reset_type == ICE_RESET_INVAL)
698 /* reset if not already down or busy */
699 if (!test_bit(ICE_DOWN, pf->state) &&
700 !test_bit(ICE_CFG_BUSY, pf->state)) {
701 ice_do_reset(pf, reset_type);
706 * ice_print_topo_conflict - print topology conflict message
707 * @vsi: the VSI whose topology status is being checked
709 static void ice_print_topo_conflict(struct ice_vsi *vsi)
711 switch (vsi->port_info->phy.link_info.topo_media_conflict) {
712 case ICE_AQ_LINK_TOPO_CONFLICT:
713 case ICE_AQ_LINK_MEDIA_CONFLICT:
714 case ICE_AQ_LINK_TOPO_UNREACH_PRT:
715 case ICE_AQ_LINK_TOPO_UNDRUTIL_PRT:
716 case ICE_AQ_LINK_TOPO_UNDRUTIL_MEDIA:
717 netdev_info(vsi->netdev, "Potential misconfiguration of the Ethernet port detected. If it was not intended, please use the Intel (R) Ethernet Port Configuration Tool to address the issue.\n");
719 case ICE_AQ_LINK_TOPO_UNSUPP_MEDIA:
720 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, vsi->back->flags))
721 netdev_warn(vsi->netdev, "An unsupported module type was detected. Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules\n");
723 netdev_err(vsi->netdev, "Rx/Tx is disabled on this device because an unsupported module type was detected. Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules.\n");
731 * ice_print_link_msg - print link up or down message
732 * @vsi: the VSI whose link status is being queried
733 * @isup: boolean for if the link is now up or down
735 void ice_print_link_msg(struct ice_vsi *vsi, bool isup)
737 struct ice_aqc_get_phy_caps_data *caps;
738 const char *an_advertised;
749 if (vsi->current_isup == isup)
752 vsi->current_isup = isup;
755 netdev_info(vsi->netdev, "NIC Link is Down\n");
759 switch (vsi->port_info->phy.link_info.link_speed) {
760 case ICE_AQ_LINK_SPEED_100GB:
763 case ICE_AQ_LINK_SPEED_50GB:
766 case ICE_AQ_LINK_SPEED_40GB:
769 case ICE_AQ_LINK_SPEED_25GB:
772 case ICE_AQ_LINK_SPEED_20GB:
775 case ICE_AQ_LINK_SPEED_10GB:
778 case ICE_AQ_LINK_SPEED_5GB:
781 case ICE_AQ_LINK_SPEED_2500MB:
784 case ICE_AQ_LINK_SPEED_1000MB:
787 case ICE_AQ_LINK_SPEED_100MB:
795 switch (vsi->port_info->fc.current_mode) {
799 case ICE_FC_TX_PAUSE:
802 case ICE_FC_RX_PAUSE:
813 /* Get FEC mode based on negotiated link info */
814 switch (vsi->port_info->phy.link_info.fec_info) {
815 case ICE_AQ_LINK_25G_RS_528_FEC_EN:
816 case ICE_AQ_LINK_25G_RS_544_FEC_EN:
819 case ICE_AQ_LINK_25G_KR_FEC_EN:
820 fec = "FC-FEC/BASE-R";
827 /* check if autoneg completed, might be false due to not supported */
828 if (vsi->port_info->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)
833 /* Get FEC mode requested based on PHY caps last SW configuration */
834 caps = kzalloc(sizeof(*caps), GFP_KERNEL);
837 an_advertised = "Unknown";
841 status = ice_aq_get_phy_caps(vsi->port_info, false,
842 ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL);
844 netdev_info(vsi->netdev, "Get phy capability failed.\n");
846 an_advertised = ice_is_phy_caps_an_enabled(caps) ? "On" : "Off";
848 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
849 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
851 else if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
852 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
853 fec_req = "FC-FEC/BASE-R";
860 netdev_info(vsi->netdev, "NIC Link is up %sbps Full Duplex, Requested FEC: %s, Negotiated FEC: %s, Autoneg Advertised: %s, Autoneg Negotiated: %s, Flow Control: %s\n",
861 speed, fec_req, fec, an_advertised, an, fc);
862 ice_print_topo_conflict(vsi);
866 * ice_vsi_link_event - update the VSI's netdev
867 * @vsi: the VSI on which the link event occurred
868 * @link_up: whether or not the VSI needs to be set up or down
870 static void ice_vsi_link_event(struct ice_vsi *vsi, bool link_up)
875 if (test_bit(ICE_VSI_DOWN, vsi->state) || !vsi->netdev)
878 if (vsi->type == ICE_VSI_PF) {
879 if (link_up == netif_carrier_ok(vsi->netdev))
883 netif_carrier_on(vsi->netdev);
884 netif_tx_wake_all_queues(vsi->netdev);
886 netif_carrier_off(vsi->netdev);
887 netif_tx_stop_all_queues(vsi->netdev);
893 * ice_set_dflt_mib - send a default config MIB to the FW
894 * @pf: private PF struct
896 * This function sends a default configuration MIB to the FW.
898 * If this function errors out at any point, the driver is still able to
899 * function. The main impact is that LFC may not operate as expected.
900 * Therefore an error state in this function should be treated with a DBG
901 * message and continue on with driver rebuild/reenable.
903 static void ice_set_dflt_mib(struct ice_pf *pf)
905 struct device *dev = ice_pf_to_dev(pf);
906 u8 mib_type, *buf, *lldpmib = NULL;
907 u16 len, typelen, offset = 0;
908 struct ice_lldp_org_tlv *tlv;
909 struct ice_hw *hw = &pf->hw;
912 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
913 lldpmib = kzalloc(ICE_LLDPDU_SIZE, GFP_KERNEL);
915 dev_dbg(dev, "%s Failed to allocate MIB memory\n",
920 /* Add ETS CFG TLV */
921 tlv = (struct ice_lldp_org_tlv *)lldpmib;
922 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
923 ICE_IEEE_ETS_TLV_LEN);
924 tlv->typelen = htons(typelen);
925 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
926 ICE_IEEE_SUBTYPE_ETS_CFG);
927 tlv->ouisubtype = htonl(ouisubtype);
932 /* ETS CFG all UPs map to TC 0. Next 4 (1 - 4) Octets = 0.
933 * Octets 5 - 12 are BW values, set octet 5 to 100% BW.
934 * Octets 13 - 20 are TSA values - leave as zeros
937 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
939 tlv = (struct ice_lldp_org_tlv *)
940 ((char *)tlv + sizeof(tlv->typelen) + len);
942 /* Add ETS REC TLV */
944 tlv->typelen = htons(typelen);
946 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
947 ICE_IEEE_SUBTYPE_ETS_REC);
948 tlv->ouisubtype = htonl(ouisubtype);
950 /* First octet of buf is reserved
951 * Octets 1 - 4 map UP to TC - all UPs map to zero
952 * Octets 5 - 12 are BW values - set TC 0 to 100%.
953 * Octets 13 - 20 are TSA value - leave as zeros
957 tlv = (struct ice_lldp_org_tlv *)
958 ((char *)tlv + sizeof(tlv->typelen) + len);
960 /* Add PFC CFG TLV */
961 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
962 ICE_IEEE_PFC_TLV_LEN);
963 tlv->typelen = htons(typelen);
965 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
966 ICE_IEEE_SUBTYPE_PFC_CFG);
967 tlv->ouisubtype = htonl(ouisubtype);
969 /* Octet 1 left as all zeros - PFC disabled */
971 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
974 if (ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, offset, NULL))
975 dev_dbg(dev, "%s Failed to set default LLDP MIB\n", __func__);
981 * ice_check_phy_fw_load - check if PHY FW load failed
982 * @pf: pointer to PF struct
983 * @link_cfg_err: bitmap from the link info structure
985 * check if external PHY FW load failed and print an error message if it did
987 static void ice_check_phy_fw_load(struct ice_pf *pf, u8 link_cfg_err)
989 if (!(link_cfg_err & ICE_AQ_LINK_EXTERNAL_PHY_LOAD_FAILURE)) {
990 clear_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags);
994 if (test_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags))
997 if (link_cfg_err & ICE_AQ_LINK_EXTERNAL_PHY_LOAD_FAILURE) {
998 dev_err(ice_pf_to_dev(pf), "Device failed to load the FW for the external PHY. Please download and install the latest NVM for your device and try again\n");
999 set_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags);
1004 * ice_check_module_power
1005 * @pf: pointer to PF struct
1006 * @link_cfg_err: bitmap from the link info structure
1008 * check module power level returned by a previous call to aq_get_link_info
1009 * and print error messages if module power level is not supported
1011 static void ice_check_module_power(struct ice_pf *pf, u8 link_cfg_err)
1013 /* if module power level is supported, clear the flag */
1014 if (!(link_cfg_err & (ICE_AQ_LINK_INVAL_MAX_POWER_LIMIT |
1015 ICE_AQ_LINK_MODULE_POWER_UNSUPPORTED))) {
1016 clear_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags);
1020 /* if ICE_FLAG_MOD_POWER_UNSUPPORTED was previously set and the
1021 * above block didn't clear this bit, there's nothing to do
1023 if (test_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags))
1026 if (link_cfg_err & ICE_AQ_LINK_INVAL_MAX_POWER_LIMIT) {
1027 dev_err(ice_pf_to_dev(pf), "The installed module is incompatible with the device's NVM image. Cannot start link\n");
1028 set_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags);
1029 } else if (link_cfg_err & ICE_AQ_LINK_MODULE_POWER_UNSUPPORTED) {
1030 dev_err(ice_pf_to_dev(pf), "The module's power requirements exceed the device's power supply. Cannot start link\n");
1031 set_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags);
1036 * ice_check_link_cfg_err - check if link configuration failed
1037 * @pf: pointer to the PF struct
1038 * @link_cfg_err: bitmap from the link info structure
1040 * print if any link configuration failure happens due to the value in the
1041 * link_cfg_err parameter in the link info structure
1043 static void ice_check_link_cfg_err(struct ice_pf *pf, u8 link_cfg_err)
1045 ice_check_module_power(pf, link_cfg_err);
1046 ice_check_phy_fw_load(pf, link_cfg_err);
1050 * ice_link_event - process the link event
1051 * @pf: PF that the link event is associated with
1052 * @pi: port_info for the port that the link event is associated with
1053 * @link_up: true if the physical link is up and false if it is down
1054 * @link_speed: current link speed received from the link event
1056 * Returns 0 on success and negative on failure
1059 ice_link_event(struct ice_pf *pf, struct ice_port_info *pi, bool link_up,
1062 struct device *dev = ice_pf_to_dev(pf);
1063 struct ice_phy_info *phy_info;
1064 struct ice_vsi *vsi;
1069 phy_info = &pi->phy;
1070 phy_info->link_info_old = phy_info->link_info;
1072 old_link = !!(phy_info->link_info_old.link_info & ICE_AQ_LINK_UP);
1073 old_link_speed = phy_info->link_info_old.link_speed;
1075 /* update the link info structures and re-enable link events,
1076 * don't bail on failure due to other book keeping needed
1078 status = ice_update_link_info(pi);
1080 dev_dbg(dev, "Failed to update link status on port %d, err %d aq_err %s\n",
1082 ice_aq_str(pi->hw->adminq.sq_last_status));
1084 ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err);
1086 /* Check if the link state is up after updating link info, and treat
1087 * this event as an UP event since the link is actually UP now.
1089 if (phy_info->link_info.link_info & ICE_AQ_LINK_UP)
1092 vsi = ice_get_main_vsi(pf);
1093 if (!vsi || !vsi->port_info)
1096 /* turn off PHY if media was removed */
1097 if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags) &&
1098 !(pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE)) {
1099 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);
1100 ice_set_link(vsi, false);
1103 /* if the old link up/down and speed is the same as the new */
1104 if (link_up == old_link && link_speed == old_link_speed)
1107 if (!ice_is_e810(&pf->hw))
1108 ice_ptp_link_change(pf, pf->hw.pf_id, link_up);
1110 if (ice_is_dcb_active(pf)) {
1111 if (test_bit(ICE_FLAG_DCB_ENA, pf->flags))
1112 ice_dcb_rebuild(pf);
1115 ice_set_dflt_mib(pf);
1117 ice_vsi_link_event(vsi, link_up);
1118 ice_print_link_msg(vsi, link_up);
1120 ice_vc_notify_link_state(pf);
1126 * ice_watchdog_subtask - periodic tasks not using event driven scheduling
1127 * @pf: board private structure
1129 static void ice_watchdog_subtask(struct ice_pf *pf)
1133 /* if interface is down do nothing */
1134 if (test_bit(ICE_DOWN, pf->state) ||
1135 test_bit(ICE_CFG_BUSY, pf->state))
1138 /* make sure we don't do these things too often */
1139 if (time_before(jiffies,
1140 pf->serv_tmr_prev + pf->serv_tmr_period))
1143 pf->serv_tmr_prev = jiffies;
1145 /* Update the stats for active netdevs so the network stack
1146 * can look at updated numbers whenever it cares to
1148 ice_update_pf_stats(pf);
1149 ice_for_each_vsi(pf, i)
1150 if (pf->vsi[i] && pf->vsi[i]->netdev)
1151 ice_update_vsi_stats(pf->vsi[i]);
1155 * ice_init_link_events - enable/initialize link events
1156 * @pi: pointer to the port_info instance
1158 * Returns -EIO on failure, 0 on success
1160 static int ice_init_link_events(struct ice_port_info *pi)
1164 mask = ~((u16)(ICE_AQ_LINK_EVENT_UPDOWN | ICE_AQ_LINK_EVENT_MEDIA_NA |
1165 ICE_AQ_LINK_EVENT_MODULE_QUAL_FAIL |
1166 ICE_AQ_LINK_EVENT_PHY_FW_LOAD_FAIL));
1168 if (ice_aq_set_event_mask(pi->hw, pi->lport, mask, NULL)) {
1169 dev_dbg(ice_hw_to_dev(pi->hw), "Failed to set link event mask for port %d\n",
1174 if (ice_aq_get_link_info(pi, true, NULL, NULL)) {
1175 dev_dbg(ice_hw_to_dev(pi->hw), "Failed to enable link events for port %d\n",
1184 * ice_handle_link_event - handle link event via ARQ
1185 * @pf: PF that the link event is associated with
1186 * @event: event structure containing link status info
1189 ice_handle_link_event(struct ice_pf *pf, struct ice_rq_event_info *event)
1191 struct ice_aqc_get_link_status_data *link_data;
1192 struct ice_port_info *port_info;
1195 link_data = (struct ice_aqc_get_link_status_data *)event->msg_buf;
1196 port_info = pf->hw.port_info;
1200 status = ice_link_event(pf, port_info,
1201 !!(link_data->link_info & ICE_AQ_LINK_UP),
1202 le16_to_cpu(link_data->link_speed));
1204 dev_dbg(ice_pf_to_dev(pf), "Could not process link event, error %d\n",
1210 enum ice_aq_task_state {
1211 ICE_AQ_TASK_WAITING = 0,
1212 ICE_AQ_TASK_COMPLETE,
1213 ICE_AQ_TASK_CANCELED,
1216 struct ice_aq_task {
1217 struct hlist_node entry;
1220 struct ice_rq_event_info *event;
1221 enum ice_aq_task_state state;
1225 * ice_aq_wait_for_event - Wait for an AdminQ event from firmware
1226 * @pf: pointer to the PF private structure
1227 * @opcode: the opcode to wait for
1228 * @timeout: how long to wait, in jiffies
1229 * @event: storage for the event info
1231 * Waits for a specific AdminQ completion event on the ARQ for a given PF. The
1232 * current thread will be put to sleep until the specified event occurs or
1233 * until the given timeout is reached.
1235 * To obtain only the descriptor contents, pass an event without an allocated
1236 * msg_buf. If the complete data buffer is desired, allocate the
1237 * event->msg_buf with enough space ahead of time.
1239 * Returns: zero on success, or a negative error code on failure.
1241 int ice_aq_wait_for_event(struct ice_pf *pf, u16 opcode, unsigned long timeout,
1242 struct ice_rq_event_info *event)
1244 struct device *dev = ice_pf_to_dev(pf);
1245 struct ice_aq_task *task;
1246 unsigned long start;
1250 task = kzalloc(sizeof(*task), GFP_KERNEL);
1254 INIT_HLIST_NODE(&task->entry);
1255 task->opcode = opcode;
1256 task->event = event;
1257 task->state = ICE_AQ_TASK_WAITING;
1259 spin_lock_bh(&pf->aq_wait_lock);
1260 hlist_add_head(&task->entry, &pf->aq_wait_list);
1261 spin_unlock_bh(&pf->aq_wait_lock);
1265 ret = wait_event_interruptible_timeout(pf->aq_wait_queue, task->state,
1267 switch (task->state) {
1268 case ICE_AQ_TASK_WAITING:
1269 err = ret < 0 ? ret : -ETIMEDOUT;
1271 case ICE_AQ_TASK_CANCELED:
1272 err = ret < 0 ? ret : -ECANCELED;
1274 case ICE_AQ_TASK_COMPLETE:
1275 err = ret < 0 ? ret : 0;
1278 WARN(1, "Unexpected AdminQ wait task state %u", task->state);
1283 dev_dbg(dev, "Waited %u msecs (max %u msecs) for firmware response to op 0x%04x\n",
1284 jiffies_to_msecs(jiffies - start),
1285 jiffies_to_msecs(timeout),
1288 spin_lock_bh(&pf->aq_wait_lock);
1289 hlist_del(&task->entry);
1290 spin_unlock_bh(&pf->aq_wait_lock);
1297 * ice_aq_check_events - Check if any thread is waiting for an AdminQ event
1298 * @pf: pointer to the PF private structure
1299 * @opcode: the opcode of the event
1300 * @event: the event to check
1302 * Loops over the current list of pending threads waiting for an AdminQ event.
1303 * For each matching task, copy the contents of the event into the task
1304 * structure and wake up the thread.
1306 * If multiple threads wait for the same opcode, they will all be woken up.
1308 * Note that event->msg_buf will only be duplicated if the event has a buffer
1309 * with enough space already allocated. Otherwise, only the descriptor and
1310 * message length will be copied.
1312 * Returns: true if an event was found, false otherwise
1314 static void ice_aq_check_events(struct ice_pf *pf, u16 opcode,
1315 struct ice_rq_event_info *event)
1317 struct ice_aq_task *task;
1320 spin_lock_bh(&pf->aq_wait_lock);
1321 hlist_for_each_entry(task, &pf->aq_wait_list, entry) {
1322 if (task->state || task->opcode != opcode)
1325 memcpy(&task->event->desc, &event->desc, sizeof(event->desc));
1326 task->event->msg_len = event->msg_len;
1328 /* Only copy the data buffer if a destination was set */
1329 if (task->event->msg_buf &&
1330 task->event->buf_len > event->buf_len) {
1331 memcpy(task->event->msg_buf, event->msg_buf,
1333 task->event->buf_len = event->buf_len;
1336 task->state = ICE_AQ_TASK_COMPLETE;
1339 spin_unlock_bh(&pf->aq_wait_lock);
1342 wake_up(&pf->aq_wait_queue);
1346 * ice_aq_cancel_waiting_tasks - Immediately cancel all waiting tasks
1347 * @pf: the PF private structure
1349 * Set all waiting tasks to ICE_AQ_TASK_CANCELED, and wake up their threads.
1350 * This will then cause ice_aq_wait_for_event to exit with -ECANCELED.
1352 static void ice_aq_cancel_waiting_tasks(struct ice_pf *pf)
1354 struct ice_aq_task *task;
1356 spin_lock_bh(&pf->aq_wait_lock);
1357 hlist_for_each_entry(task, &pf->aq_wait_list, entry)
1358 task->state = ICE_AQ_TASK_CANCELED;
1359 spin_unlock_bh(&pf->aq_wait_lock);
1361 wake_up(&pf->aq_wait_queue);
1365 * __ice_clean_ctrlq - helper function to clean controlq rings
1366 * @pf: ptr to struct ice_pf
1367 * @q_type: specific Control queue type
1369 static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type)
1371 struct device *dev = ice_pf_to_dev(pf);
1372 struct ice_rq_event_info event;
1373 struct ice_hw *hw = &pf->hw;
1374 struct ice_ctl_q_info *cq;
1379 /* Do not clean control queue if/when PF reset fails */
1380 if (test_bit(ICE_RESET_FAILED, pf->state))
1384 case ICE_CTL_Q_ADMIN:
1392 case ICE_CTL_Q_MAILBOX:
1395 /* we are going to try to detect a malicious VF, so set the
1396 * state to begin detection
1398 hw->mbx_snapshot.mbx_buf.state = ICE_MAL_VF_DETECT_STATE_NEW_SNAPSHOT;
1401 dev_warn(dev, "Unknown control queue type 0x%x\n", q_type);
1405 /* check for error indications - PF_xx_AxQLEN register layout for
1406 * FW/MBX/SB are identical so just use defines for PF_FW_AxQLEN.
1408 val = rd32(hw, cq->rq.len);
1409 if (val & (PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M |
1410 PF_FW_ARQLEN_ARQCRIT_M)) {
1412 if (val & PF_FW_ARQLEN_ARQVFE_M)
1413 dev_dbg(dev, "%s Receive Queue VF Error detected\n",
1415 if (val & PF_FW_ARQLEN_ARQOVFL_M) {
1416 dev_dbg(dev, "%s Receive Queue Overflow Error detected\n",
1419 if (val & PF_FW_ARQLEN_ARQCRIT_M)
1420 dev_dbg(dev, "%s Receive Queue Critical Error detected\n",
1422 val &= ~(PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M |
1423 PF_FW_ARQLEN_ARQCRIT_M);
1425 wr32(hw, cq->rq.len, val);
1428 val = rd32(hw, cq->sq.len);
1429 if (val & (PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M |
1430 PF_FW_ATQLEN_ATQCRIT_M)) {
1432 if (val & PF_FW_ATQLEN_ATQVFE_M)
1433 dev_dbg(dev, "%s Send Queue VF Error detected\n",
1435 if (val & PF_FW_ATQLEN_ATQOVFL_M) {
1436 dev_dbg(dev, "%s Send Queue Overflow Error detected\n",
1439 if (val & PF_FW_ATQLEN_ATQCRIT_M)
1440 dev_dbg(dev, "%s Send Queue Critical Error detected\n",
1442 val &= ~(PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M |
1443 PF_FW_ATQLEN_ATQCRIT_M);
1445 wr32(hw, cq->sq.len, val);
1448 event.buf_len = cq->rq_buf_size;
1449 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
1457 ret = ice_clean_rq_elem(hw, cq, &event, &pending);
1458 if (ret == -EALREADY)
1461 dev_err(dev, "%s Receive Queue event error %d\n", qtype,
1466 opcode = le16_to_cpu(event.desc.opcode);
1468 /* Notify any thread that might be waiting for this event */
1469 ice_aq_check_events(pf, opcode, &event);
1472 case ice_aqc_opc_get_link_status:
1473 if (ice_handle_link_event(pf, &event))
1474 dev_err(dev, "Could not handle link event\n");
1476 case ice_aqc_opc_event_lan_overflow:
1477 ice_vf_lan_overflow_event(pf, &event);
1479 case ice_mbx_opc_send_msg_to_pf:
1480 if (!ice_is_malicious_vf(pf, &event, i, pending))
1481 ice_vc_process_vf_msg(pf, &event);
1483 case ice_aqc_opc_fw_logging:
1484 ice_output_fw_log(hw, &event.desc, event.msg_buf);
1486 case ice_aqc_opc_lldp_set_mib_change:
1487 ice_dcb_process_lldp_set_mib_change(pf, &event);
1490 dev_dbg(dev, "%s Receive Queue unknown event 0x%04x ignored\n",
1494 } while (pending && (i++ < ICE_DFLT_IRQ_WORK));
1496 kfree(event.msg_buf);
1498 return pending && (i == ICE_DFLT_IRQ_WORK);
1502 * ice_ctrlq_pending - check if there is a difference between ntc and ntu
1503 * @hw: pointer to hardware info
1504 * @cq: control queue information
1506 * returns true if there are pending messages in a queue, false if there aren't
1508 static bool ice_ctrlq_pending(struct ice_hw *hw, struct ice_ctl_q_info *cq)
1512 ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask);
1513 return cq->rq.next_to_clean != ntu;
1517 * ice_clean_adminq_subtask - clean the AdminQ rings
1518 * @pf: board private structure
1520 static void ice_clean_adminq_subtask(struct ice_pf *pf)
1522 struct ice_hw *hw = &pf->hw;
1524 if (!test_bit(ICE_ADMINQ_EVENT_PENDING, pf->state))
1527 if (__ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN))
1530 clear_bit(ICE_ADMINQ_EVENT_PENDING, pf->state);
1532 /* There might be a situation where new messages arrive to a control
1533 * queue between processing the last message and clearing the
1534 * EVENT_PENDING bit. So before exiting, check queue head again (using
1535 * ice_ctrlq_pending) and process new messages if any.
1537 if (ice_ctrlq_pending(hw, &hw->adminq))
1538 __ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN);
1544 * ice_clean_mailboxq_subtask - clean the MailboxQ rings
1545 * @pf: board private structure
1547 static void ice_clean_mailboxq_subtask(struct ice_pf *pf)
1549 struct ice_hw *hw = &pf->hw;
1551 if (!test_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state))
1554 if (__ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX))
1557 clear_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state);
1559 if (ice_ctrlq_pending(hw, &hw->mailboxq))
1560 __ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX);
1566 * ice_clean_sbq_subtask - clean the Sideband Queue rings
1567 * @pf: board private structure
1569 static void ice_clean_sbq_subtask(struct ice_pf *pf)
1571 struct ice_hw *hw = &pf->hw;
1573 /* Nothing to do here if sideband queue is not supported */
1574 if (!ice_is_sbq_supported(hw)) {
1575 clear_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state);
1579 if (!test_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state))
1582 if (__ice_clean_ctrlq(pf, ICE_CTL_Q_SB))
1585 clear_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state);
1587 if (ice_ctrlq_pending(hw, &hw->sbq))
1588 __ice_clean_ctrlq(pf, ICE_CTL_Q_SB);
1594 * ice_service_task_schedule - schedule the service task to wake up
1595 * @pf: board private structure
1597 * If not already scheduled, this puts the task into the work queue.
1599 void ice_service_task_schedule(struct ice_pf *pf)
1601 if (!test_bit(ICE_SERVICE_DIS, pf->state) &&
1602 !test_and_set_bit(ICE_SERVICE_SCHED, pf->state) &&
1603 !test_bit(ICE_NEEDS_RESTART, pf->state))
1604 queue_work(ice_wq, &pf->serv_task);
1608 * ice_service_task_complete - finish up the service task
1609 * @pf: board private structure
1611 static void ice_service_task_complete(struct ice_pf *pf)
1613 WARN_ON(!test_bit(ICE_SERVICE_SCHED, pf->state));
1615 /* force memory (pf->state) to sync before next service task */
1616 smp_mb__before_atomic();
1617 clear_bit(ICE_SERVICE_SCHED, pf->state);
1621 * ice_service_task_stop - stop service task and cancel works
1622 * @pf: board private structure
1624 * Return 0 if the ICE_SERVICE_DIS bit was not already set,
1627 static int ice_service_task_stop(struct ice_pf *pf)
1631 ret = test_and_set_bit(ICE_SERVICE_DIS, pf->state);
1633 if (pf->serv_tmr.function)
1634 del_timer_sync(&pf->serv_tmr);
1635 if (pf->serv_task.func)
1636 cancel_work_sync(&pf->serv_task);
1638 clear_bit(ICE_SERVICE_SCHED, pf->state);
1643 * ice_service_task_restart - restart service task and schedule works
1644 * @pf: board private structure
1646 * This function is needed for suspend and resume works (e.g WoL scenario)
1648 static void ice_service_task_restart(struct ice_pf *pf)
1650 clear_bit(ICE_SERVICE_DIS, pf->state);
1651 ice_service_task_schedule(pf);
1655 * ice_service_timer - timer callback to schedule service task
1656 * @t: pointer to timer_list
1658 static void ice_service_timer(struct timer_list *t)
1660 struct ice_pf *pf = from_timer(pf, t, serv_tmr);
1662 mod_timer(&pf->serv_tmr, round_jiffies(pf->serv_tmr_period + jiffies));
1663 ice_service_task_schedule(pf);
1667 * ice_handle_mdd_event - handle malicious driver detect event
1668 * @pf: pointer to the PF structure
1670 * Called from service task. OICR interrupt handler indicates MDD event.
1671 * VF MDD logging is guarded by net_ratelimit. Additional PF and VF log
1672 * messages are wrapped by netif_msg_[rx|tx]_err. Since VF Rx MDD events
1673 * disable the queue, the PF can be configured to reset the VF using ethtool
1674 * private flag mdd-auto-reset-vf.
1676 static void ice_handle_mdd_event(struct ice_pf *pf)
1678 struct device *dev = ice_pf_to_dev(pf);
1679 struct ice_hw *hw = &pf->hw;
1684 if (!test_and_clear_bit(ICE_MDD_EVENT_PENDING, pf->state)) {
1685 /* Since the VF MDD event logging is rate limited, check if
1686 * there are pending MDD events.
1688 ice_print_vfs_mdd_events(pf);
1692 /* find what triggered an MDD event */
1693 reg = rd32(hw, GL_MDET_TX_PQM);
1694 if (reg & GL_MDET_TX_PQM_VALID_M) {
1695 u8 pf_num = (reg & GL_MDET_TX_PQM_PF_NUM_M) >>
1696 GL_MDET_TX_PQM_PF_NUM_S;
1697 u16 vf_num = (reg & GL_MDET_TX_PQM_VF_NUM_M) >>
1698 GL_MDET_TX_PQM_VF_NUM_S;
1699 u8 event = (reg & GL_MDET_TX_PQM_MAL_TYPE_M) >>
1700 GL_MDET_TX_PQM_MAL_TYPE_S;
1701 u16 queue = ((reg & GL_MDET_TX_PQM_QNUM_M) >>
1702 GL_MDET_TX_PQM_QNUM_S);
1704 if (netif_msg_tx_err(pf))
1705 dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n",
1706 event, queue, pf_num, vf_num);
1707 wr32(hw, GL_MDET_TX_PQM, 0xffffffff);
1710 reg = rd32(hw, GL_MDET_TX_TCLAN);
1711 if (reg & GL_MDET_TX_TCLAN_VALID_M) {
1712 u8 pf_num = (reg & GL_MDET_TX_TCLAN_PF_NUM_M) >>
1713 GL_MDET_TX_TCLAN_PF_NUM_S;
1714 u16 vf_num = (reg & GL_MDET_TX_TCLAN_VF_NUM_M) >>
1715 GL_MDET_TX_TCLAN_VF_NUM_S;
1716 u8 event = (reg & GL_MDET_TX_TCLAN_MAL_TYPE_M) >>
1717 GL_MDET_TX_TCLAN_MAL_TYPE_S;
1718 u16 queue = ((reg & GL_MDET_TX_TCLAN_QNUM_M) >>
1719 GL_MDET_TX_TCLAN_QNUM_S);
1721 if (netif_msg_tx_err(pf))
1722 dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n",
1723 event, queue, pf_num, vf_num);
1724 wr32(hw, GL_MDET_TX_TCLAN, 0xffffffff);
1727 reg = rd32(hw, GL_MDET_RX);
1728 if (reg & GL_MDET_RX_VALID_M) {
1729 u8 pf_num = (reg & GL_MDET_RX_PF_NUM_M) >>
1730 GL_MDET_RX_PF_NUM_S;
1731 u16 vf_num = (reg & GL_MDET_RX_VF_NUM_M) >>
1732 GL_MDET_RX_VF_NUM_S;
1733 u8 event = (reg & GL_MDET_RX_MAL_TYPE_M) >>
1734 GL_MDET_RX_MAL_TYPE_S;
1735 u16 queue = ((reg & GL_MDET_RX_QNUM_M) >>
1738 if (netif_msg_rx_err(pf))
1739 dev_info(dev, "Malicious Driver Detection event %d on RX queue %d PF# %d VF# %d\n",
1740 event, queue, pf_num, vf_num);
1741 wr32(hw, GL_MDET_RX, 0xffffffff);
1744 /* check to see if this PF caused an MDD event */
1745 reg = rd32(hw, PF_MDET_TX_PQM);
1746 if (reg & PF_MDET_TX_PQM_VALID_M) {
1747 wr32(hw, PF_MDET_TX_PQM, 0xFFFF);
1748 if (netif_msg_tx_err(pf))
1749 dev_info(dev, "Malicious Driver Detection event TX_PQM detected on PF\n");
1752 reg = rd32(hw, PF_MDET_TX_TCLAN);
1753 if (reg & PF_MDET_TX_TCLAN_VALID_M) {
1754 wr32(hw, PF_MDET_TX_TCLAN, 0xFFFF);
1755 if (netif_msg_tx_err(pf))
1756 dev_info(dev, "Malicious Driver Detection event TX_TCLAN detected on PF\n");
1759 reg = rd32(hw, PF_MDET_RX);
1760 if (reg & PF_MDET_RX_VALID_M) {
1761 wr32(hw, PF_MDET_RX, 0xFFFF);
1762 if (netif_msg_rx_err(pf))
1763 dev_info(dev, "Malicious Driver Detection event RX detected on PF\n");
1766 /* Check to see if one of the VFs caused an MDD event, and then
1767 * increment counters and set print pending
1769 mutex_lock(&pf->vfs.table_lock);
1770 ice_for_each_vf(pf, bkt, vf) {
1771 reg = rd32(hw, VP_MDET_TX_PQM(vf->vf_id));
1772 if (reg & VP_MDET_TX_PQM_VALID_M) {
1773 wr32(hw, VP_MDET_TX_PQM(vf->vf_id), 0xFFFF);
1774 vf->mdd_tx_events.count++;
1775 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);
1776 if (netif_msg_tx_err(pf))
1777 dev_info(dev, "Malicious Driver Detection event TX_PQM detected on VF %d\n",
1781 reg = rd32(hw, VP_MDET_TX_TCLAN(vf->vf_id));
1782 if (reg & VP_MDET_TX_TCLAN_VALID_M) {
1783 wr32(hw, VP_MDET_TX_TCLAN(vf->vf_id), 0xFFFF);
1784 vf->mdd_tx_events.count++;
1785 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);
1786 if (netif_msg_tx_err(pf))
1787 dev_info(dev, "Malicious Driver Detection event TX_TCLAN detected on VF %d\n",
1791 reg = rd32(hw, VP_MDET_TX_TDPU(vf->vf_id));
1792 if (reg & VP_MDET_TX_TDPU_VALID_M) {
1793 wr32(hw, VP_MDET_TX_TDPU(vf->vf_id), 0xFFFF);
1794 vf->mdd_tx_events.count++;
1795 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);
1796 if (netif_msg_tx_err(pf))
1797 dev_info(dev, "Malicious Driver Detection event TX_TDPU detected on VF %d\n",
1801 reg = rd32(hw, VP_MDET_RX(vf->vf_id));
1802 if (reg & VP_MDET_RX_VALID_M) {
1803 wr32(hw, VP_MDET_RX(vf->vf_id), 0xFFFF);
1804 vf->mdd_rx_events.count++;
1805 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);
1806 if (netif_msg_rx_err(pf))
1807 dev_info(dev, "Malicious Driver Detection event RX detected on VF %d\n",
1810 /* Since the queue is disabled on VF Rx MDD events, the
1811 * PF can be configured to reset the VF through ethtool
1812 * private flag mdd-auto-reset-vf.
1814 if (test_bit(ICE_FLAG_MDD_AUTO_RESET_VF, pf->flags)) {
1815 /* VF MDD event counters will be cleared by
1816 * reset, so print the event prior to reset.
1818 ice_print_vf_rx_mdd_event(vf);
1819 ice_reset_vf(vf, ICE_VF_RESET_LOCK);
1823 mutex_unlock(&pf->vfs.table_lock);
1825 ice_print_vfs_mdd_events(pf);
1829 * ice_force_phys_link_state - Force the physical link state
1830 * @vsi: VSI to force the physical link state to up/down
1831 * @link_up: true/false indicates to set the physical link to up/down
1833 * Force the physical link state by getting the current PHY capabilities from
1834 * hardware and setting the PHY config based on the determined capabilities. If
1835 * link changes a link event will be triggered because both the Enable Automatic
1836 * Link Update and LESM Enable bits are set when setting the PHY capabilities.
1838 * Returns 0 on success, negative on failure
1840 static int ice_force_phys_link_state(struct ice_vsi *vsi, bool link_up)
1842 struct ice_aqc_get_phy_caps_data *pcaps;
1843 struct ice_aqc_set_phy_cfg_data *cfg;
1844 struct ice_port_info *pi;
1848 if (!vsi || !vsi->port_info || !vsi->back)
1850 if (vsi->type != ICE_VSI_PF)
1853 dev = ice_pf_to_dev(vsi->back);
1855 pi = vsi->port_info;
1857 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
1861 retcode = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
1864 dev_err(dev, "Failed to get phy capabilities, VSI %d error %d\n",
1865 vsi->vsi_num, retcode);
1870 /* No change in link */
1871 if (link_up == !!(pcaps->caps & ICE_AQC_PHY_EN_LINK) &&
1872 link_up == !!(pi->phy.link_info.link_info & ICE_AQ_LINK_UP))
1875 /* Use the current user PHY configuration. The current user PHY
1876 * configuration is initialized during probe from PHY capabilities
1877 * software mode, and updated on set PHY configuration.
1879 cfg = kmemdup(&pi->phy.curr_user_phy_cfg, sizeof(*cfg), GFP_KERNEL);
1885 cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
1887 cfg->caps |= ICE_AQ_PHY_ENA_LINK;
1889 cfg->caps &= ~ICE_AQ_PHY_ENA_LINK;
1891 retcode = ice_aq_set_phy_cfg(&vsi->back->hw, pi, cfg, NULL);
1893 dev_err(dev, "Failed to set phy config, VSI %d error %d\n",
1894 vsi->vsi_num, retcode);
1905 * ice_init_nvm_phy_type - Initialize the NVM PHY type
1906 * @pi: port info structure
1908 * Initialize nvm_phy_type_[low|high] for link lenient mode support
1910 static int ice_init_nvm_phy_type(struct ice_port_info *pi)
1912 struct ice_aqc_get_phy_caps_data *pcaps;
1913 struct ice_pf *pf = pi->hw->back;
1916 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
1920 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_NO_MEDIA,
1924 dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n");
1928 pf->nvm_phy_type_hi = pcaps->phy_type_high;
1929 pf->nvm_phy_type_lo = pcaps->phy_type_low;
1937 * ice_init_link_dflt_override - Initialize link default override
1938 * @pi: port info structure
1940 * Initialize link default override and PHY total port shutdown during probe
1942 static void ice_init_link_dflt_override(struct ice_port_info *pi)
1944 struct ice_link_default_override_tlv *ldo;
1945 struct ice_pf *pf = pi->hw->back;
1947 ldo = &pf->link_dflt_override;
1948 if (ice_get_link_default_override(ldo, pi))
1951 if (!(ldo->options & ICE_LINK_OVERRIDE_PORT_DIS))
1954 /* Enable Total Port Shutdown (override/replace link-down-on-close
1955 * ethtool private flag) for ports with Port Disable bit set.
1957 set_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags);
1958 set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags);
1962 * ice_init_phy_cfg_dflt_override - Initialize PHY cfg default override settings
1963 * @pi: port info structure
1965 * If default override is enabled, initialize the user PHY cfg speed and FEC
1966 * settings using the default override mask from the NVM.
1968 * The PHY should only be configured with the default override settings the
1969 * first time media is available. The ICE_LINK_DEFAULT_OVERRIDE_PENDING state
1970 * is used to indicate that the user PHY cfg default override is initialized
1971 * and the PHY has not been configured with the default override settings. The
1972 * state is set here, and cleared in ice_configure_phy the first time the PHY is
1975 * This function should be called only if the FW doesn't support default
1976 * configuration mode, as reported by ice_fw_supports_report_dflt_cfg.
1978 static void ice_init_phy_cfg_dflt_override(struct ice_port_info *pi)
1980 struct ice_link_default_override_tlv *ldo;
1981 struct ice_aqc_set_phy_cfg_data *cfg;
1982 struct ice_phy_info *phy = &pi->phy;
1983 struct ice_pf *pf = pi->hw->back;
1985 ldo = &pf->link_dflt_override;
1987 /* If link default override is enabled, use to mask NVM PHY capabilities
1988 * for speed and FEC default configuration.
1990 cfg = &phy->curr_user_phy_cfg;
1992 if (ldo->phy_type_low || ldo->phy_type_high) {
1993 cfg->phy_type_low = pf->nvm_phy_type_lo &
1994 cpu_to_le64(ldo->phy_type_low);
1995 cfg->phy_type_high = pf->nvm_phy_type_hi &
1996 cpu_to_le64(ldo->phy_type_high);
1998 cfg->link_fec_opt = ldo->fec_options;
1999 phy->curr_user_fec_req = ICE_FEC_AUTO;
2001 set_bit(ICE_LINK_DEFAULT_OVERRIDE_PENDING, pf->state);
2005 * ice_init_phy_user_cfg - Initialize the PHY user configuration
2006 * @pi: port info structure
2008 * Initialize the current user PHY configuration, speed, FEC, and FC requested
2009 * mode to default. The PHY defaults are from get PHY capabilities topology
2010 * with media so call when media is first available. An error is returned if
2011 * called when media is not available. The PHY initialization completed state is
2014 * These configurations are used when setting PHY
2015 * configuration. The user PHY configuration is updated on set PHY
2016 * configuration. Returns 0 on success, negative on failure
2018 static int ice_init_phy_user_cfg(struct ice_port_info *pi)
2020 struct ice_aqc_get_phy_caps_data *pcaps;
2021 struct ice_phy_info *phy = &pi->phy;
2022 struct ice_pf *pf = pi->hw->back;
2025 if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE))
2028 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2032 if (ice_fw_supports_report_dflt_cfg(pi->hw))
2033 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG,
2036 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
2039 dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n");
2043 ice_copy_phy_caps_to_cfg(pi, pcaps, &pi->phy.curr_user_phy_cfg);
2045 /* check if lenient mode is supported and enabled */
2046 if (ice_fw_supports_link_override(pi->hw) &&
2047 !(pcaps->module_compliance_enforcement &
2048 ICE_AQC_MOD_ENFORCE_STRICT_MODE)) {
2049 set_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags);
2051 /* if the FW supports default PHY configuration mode, then the driver
2052 * does not have to apply link override settings. If not,
2053 * initialize user PHY configuration with link override values
2055 if (!ice_fw_supports_report_dflt_cfg(pi->hw) &&
2056 (pf->link_dflt_override.options & ICE_LINK_OVERRIDE_EN)) {
2057 ice_init_phy_cfg_dflt_override(pi);
2062 /* if link default override is not enabled, set user flow control and
2063 * FEC settings based on what get_phy_caps returned
2065 phy->curr_user_fec_req = ice_caps_to_fec_mode(pcaps->caps,
2066 pcaps->link_fec_options);
2067 phy->curr_user_fc_req = ice_caps_to_fc_mode(pcaps->caps);
2070 phy->curr_user_speed_req = ICE_AQ_LINK_SPEED_M;
2071 set_bit(ICE_PHY_INIT_COMPLETE, pf->state);
2078 * ice_configure_phy - configure PHY
2081 * Set the PHY configuration. If the current PHY configuration is the same as
2082 * the curr_user_phy_cfg, then do nothing to avoid link flap. Otherwise
2083 * configure the based get PHY capabilities for topology with media.
2085 static int ice_configure_phy(struct ice_vsi *vsi)
2087 struct device *dev = ice_pf_to_dev(vsi->back);
2088 struct ice_port_info *pi = vsi->port_info;
2089 struct ice_aqc_get_phy_caps_data *pcaps;
2090 struct ice_aqc_set_phy_cfg_data *cfg;
2091 struct ice_phy_info *phy = &pi->phy;
2092 struct ice_pf *pf = vsi->back;
2095 /* Ensure we have media as we cannot configure a medialess port */
2096 if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE))
2099 ice_print_topo_conflict(vsi);
2101 if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags) &&
2102 phy->link_info.topo_media_conflict == ICE_AQ_LINK_TOPO_UNSUPP_MEDIA)
2105 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags))
2106 return ice_force_phys_link_state(vsi, true);
2108 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2112 /* Get current PHY config */
2113 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
2116 dev_err(dev, "Failed to get PHY configuration, VSI %d error %d\n",
2121 /* If PHY enable link is configured and configuration has not changed,
2122 * there's nothing to do
2124 if (pcaps->caps & ICE_AQC_PHY_EN_LINK &&
2125 ice_phy_caps_equals_cfg(pcaps, &phy->curr_user_phy_cfg))
2128 /* Use PHY topology as baseline for configuration */
2129 memset(pcaps, 0, sizeof(*pcaps));
2130 if (ice_fw_supports_report_dflt_cfg(pi->hw))
2131 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG,
2134 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
2137 dev_err(dev, "Failed to get PHY caps, VSI %d error %d\n",
2142 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
2148 ice_copy_phy_caps_to_cfg(pi, pcaps, cfg);
2150 /* Speed - If default override pending, use curr_user_phy_cfg set in
2151 * ice_init_phy_user_cfg_ldo.
2153 if (test_and_clear_bit(ICE_LINK_DEFAULT_OVERRIDE_PENDING,
2154 vsi->back->state)) {
2155 cfg->phy_type_low = phy->curr_user_phy_cfg.phy_type_low;
2156 cfg->phy_type_high = phy->curr_user_phy_cfg.phy_type_high;
2158 u64 phy_low = 0, phy_high = 0;
2160 ice_update_phy_type(&phy_low, &phy_high,
2161 pi->phy.curr_user_speed_req);
2162 cfg->phy_type_low = pcaps->phy_type_low & cpu_to_le64(phy_low);
2163 cfg->phy_type_high = pcaps->phy_type_high &
2164 cpu_to_le64(phy_high);
2167 /* Can't provide what was requested; use PHY capabilities */
2168 if (!cfg->phy_type_low && !cfg->phy_type_high) {
2169 cfg->phy_type_low = pcaps->phy_type_low;
2170 cfg->phy_type_high = pcaps->phy_type_high;
2174 ice_cfg_phy_fec(pi, cfg, phy->curr_user_fec_req);
2176 /* Can't provide what was requested; use PHY capabilities */
2177 if (cfg->link_fec_opt !=
2178 (cfg->link_fec_opt & pcaps->link_fec_options)) {
2179 cfg->caps |= pcaps->caps & ICE_AQC_PHY_EN_AUTO_FEC;
2180 cfg->link_fec_opt = pcaps->link_fec_options;
2183 /* Flow Control - always supported; no need to check against
2186 ice_cfg_phy_fc(pi, cfg, phy->curr_user_fc_req);
2188 /* Enable link and link update */
2189 cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT | ICE_AQ_PHY_ENA_LINK;
2191 err = ice_aq_set_phy_cfg(&pf->hw, pi, cfg, NULL);
2193 dev_err(dev, "Failed to set phy config, VSI %d error %d\n",
2203 * ice_check_media_subtask - Check for media
2204 * @pf: pointer to PF struct
2206 * If media is available, then initialize PHY user configuration if it is not
2207 * been, and configure the PHY if the interface is up.
2209 static void ice_check_media_subtask(struct ice_pf *pf)
2211 struct ice_port_info *pi;
2212 struct ice_vsi *vsi;
2215 /* No need to check for media if it's already present */
2216 if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags))
2219 vsi = ice_get_main_vsi(pf);
2223 /* Refresh link info and check if media is present */
2224 pi = vsi->port_info;
2225 err = ice_update_link_info(pi);
2229 ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err);
2231 if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) {
2232 if (!test_bit(ICE_PHY_INIT_COMPLETE, pf->state))
2233 ice_init_phy_user_cfg(pi);
2235 /* PHY settings are reset on media insertion, reconfigure
2236 * PHY to preserve settings.
2238 if (test_bit(ICE_VSI_DOWN, vsi->state) &&
2239 test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags))
2242 err = ice_configure_phy(vsi);
2244 clear_bit(ICE_FLAG_NO_MEDIA, pf->flags);
2246 /* A Link Status Event will be generated; the event handler
2247 * will complete bringing the interface up
2253 * ice_service_task - manage and run subtasks
2254 * @work: pointer to work_struct contained by the PF struct
2256 static void ice_service_task(struct work_struct *work)
2258 struct ice_pf *pf = container_of(work, struct ice_pf, serv_task);
2259 unsigned long start_time = jiffies;
2263 /* process reset requests first */
2264 ice_reset_subtask(pf);
2266 /* bail if a reset/recovery cycle is pending or rebuild failed */
2267 if (ice_is_reset_in_progress(pf->state) ||
2268 test_bit(ICE_SUSPENDED, pf->state) ||
2269 test_bit(ICE_NEEDS_RESTART, pf->state)) {
2270 ice_service_task_complete(pf);
2274 if (test_and_clear_bit(ICE_AUX_ERR_PENDING, pf->state)) {
2275 struct iidc_event *event;
2277 event = kzalloc(sizeof(*event), GFP_KERNEL);
2279 set_bit(IIDC_EVENT_CRIT_ERR, event->type);
2280 /* report the entire OICR value to AUX driver */
2281 swap(event->reg, pf->oicr_err_reg);
2282 ice_send_event_to_aux(pf, event);
2287 if (test_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags)) {
2288 /* Plug aux device per request */
2289 ice_plug_aux_dev(pf);
2291 /* Mark plugging as done but check whether unplug was
2292 * requested during ice_plug_aux_dev() call
2293 * (e.g. from ice_clear_rdma_cap()) and if so then
2296 if (!test_and_clear_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags))
2297 ice_unplug_aux_dev(pf);
2300 if (test_and_clear_bit(ICE_FLAG_MTU_CHANGED, pf->flags)) {
2301 struct iidc_event *event;
2303 event = kzalloc(sizeof(*event), GFP_KERNEL);
2305 set_bit(IIDC_EVENT_AFTER_MTU_CHANGE, event->type);
2306 ice_send_event_to_aux(pf, event);
2311 ice_clean_adminq_subtask(pf);
2312 ice_check_media_subtask(pf);
2313 ice_check_for_hang_subtask(pf);
2314 ice_sync_fltr_subtask(pf);
2315 ice_handle_mdd_event(pf);
2316 ice_watchdog_subtask(pf);
2318 if (ice_is_safe_mode(pf)) {
2319 ice_service_task_complete(pf);
2323 ice_process_vflr_event(pf);
2324 ice_clean_mailboxq_subtask(pf);
2325 ice_clean_sbq_subtask(pf);
2326 ice_sync_arfs_fltrs(pf);
2327 ice_flush_fdir_ctx(pf);
2329 /* Clear ICE_SERVICE_SCHED flag to allow scheduling next event */
2330 ice_service_task_complete(pf);
2332 /* If the tasks have taken longer than one service timer period
2333 * or there is more work to be done, reset the service timer to
2334 * schedule the service task now.
2336 if (time_after(jiffies, (start_time + pf->serv_tmr_period)) ||
2337 test_bit(ICE_MDD_EVENT_PENDING, pf->state) ||
2338 test_bit(ICE_VFLR_EVENT_PENDING, pf->state) ||
2339 test_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state) ||
2340 test_bit(ICE_FD_VF_FLUSH_CTX, pf->state) ||
2341 test_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state) ||
2342 test_bit(ICE_ADMINQ_EVENT_PENDING, pf->state))
2343 mod_timer(&pf->serv_tmr, jiffies);
2347 * ice_set_ctrlq_len - helper function to set controlq length
2348 * @hw: pointer to the HW instance
2350 static void ice_set_ctrlq_len(struct ice_hw *hw)
2352 hw->adminq.num_rq_entries = ICE_AQ_LEN;
2353 hw->adminq.num_sq_entries = ICE_AQ_LEN;
2354 hw->adminq.rq_buf_size = ICE_AQ_MAX_BUF_LEN;
2355 hw->adminq.sq_buf_size = ICE_AQ_MAX_BUF_LEN;
2356 hw->mailboxq.num_rq_entries = PF_MBX_ARQLEN_ARQLEN_M;
2357 hw->mailboxq.num_sq_entries = ICE_MBXSQ_LEN;
2358 hw->mailboxq.rq_buf_size = ICE_MBXQ_MAX_BUF_LEN;
2359 hw->mailboxq.sq_buf_size = ICE_MBXQ_MAX_BUF_LEN;
2360 hw->sbq.num_rq_entries = ICE_SBQ_LEN;
2361 hw->sbq.num_sq_entries = ICE_SBQ_LEN;
2362 hw->sbq.rq_buf_size = ICE_SBQ_MAX_BUF_LEN;
2363 hw->sbq.sq_buf_size = ICE_SBQ_MAX_BUF_LEN;
2367 * ice_schedule_reset - schedule a reset
2368 * @pf: board private structure
2369 * @reset: reset being requested
2371 int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset)
2373 struct device *dev = ice_pf_to_dev(pf);
2375 /* bail out if earlier reset has failed */
2376 if (test_bit(ICE_RESET_FAILED, pf->state)) {
2377 dev_dbg(dev, "earlier reset has failed\n");
2380 /* bail if reset/recovery already in progress */
2381 if (ice_is_reset_in_progress(pf->state)) {
2382 dev_dbg(dev, "Reset already in progress\n");
2386 ice_unplug_aux_dev(pf);
2390 set_bit(ICE_PFR_REQ, pf->state);
2392 case ICE_RESET_CORER:
2393 set_bit(ICE_CORER_REQ, pf->state);
2395 case ICE_RESET_GLOBR:
2396 set_bit(ICE_GLOBR_REQ, pf->state);
2402 ice_service_task_schedule(pf);
2407 * ice_irq_affinity_notify - Callback for affinity changes
2408 * @notify: context as to what irq was changed
2409 * @mask: the new affinity mask
2411 * This is a callback function used by the irq_set_affinity_notifier function
2412 * so that we may register to receive changes to the irq affinity masks.
2415 ice_irq_affinity_notify(struct irq_affinity_notify *notify,
2416 const cpumask_t *mask)
2418 struct ice_q_vector *q_vector =
2419 container_of(notify, struct ice_q_vector, affinity_notify);
2421 cpumask_copy(&q_vector->affinity_mask, mask);
2425 * ice_irq_affinity_release - Callback for affinity notifier release
2426 * @ref: internal core kernel usage
2428 * This is a callback function used by the irq_set_affinity_notifier function
2429 * to inform the current notification subscriber that they will no longer
2430 * receive notifications.
2432 static void ice_irq_affinity_release(struct kref __always_unused *ref) {}
2435 * ice_vsi_ena_irq - Enable IRQ for the given VSI
2436 * @vsi: the VSI being configured
2438 static int ice_vsi_ena_irq(struct ice_vsi *vsi)
2440 struct ice_hw *hw = &vsi->back->hw;
2443 ice_for_each_q_vector(vsi, i)
2444 ice_irq_dynamic_ena(hw, vsi, vsi->q_vectors[i]);
2451 * ice_vsi_req_irq_msix - get MSI-X vectors from the OS for the VSI
2452 * @vsi: the VSI being configured
2453 * @basename: name for the vector
2455 static int ice_vsi_req_irq_msix(struct ice_vsi *vsi, char *basename)
2457 int q_vectors = vsi->num_q_vectors;
2458 struct ice_pf *pf = vsi->back;
2459 int base = vsi->base_vector;
2466 dev = ice_pf_to_dev(pf);
2467 for (vector = 0; vector < q_vectors; vector++) {
2468 struct ice_q_vector *q_vector = vsi->q_vectors[vector];
2470 irq_num = pf->msix_entries[base + vector].vector;
2472 if (q_vector->tx.tx_ring && q_vector->rx.rx_ring) {
2473 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
2474 "%s-%s-%d", basename, "TxRx", rx_int_idx++);
2476 } else if (q_vector->rx.rx_ring) {
2477 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
2478 "%s-%s-%d", basename, "rx", rx_int_idx++);
2479 } else if (q_vector->tx.tx_ring) {
2480 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
2481 "%s-%s-%d", basename, "tx", tx_int_idx++);
2483 /* skip this unused q_vector */
2486 if (vsi->type == ICE_VSI_CTRL && vsi->vf)
2487 err = devm_request_irq(dev, irq_num, vsi->irq_handler,
2488 IRQF_SHARED, q_vector->name,
2491 err = devm_request_irq(dev, irq_num, vsi->irq_handler,
2492 0, q_vector->name, q_vector);
2494 netdev_err(vsi->netdev, "MSIX request_irq failed, error: %d\n",
2499 /* register for affinity change notifications */
2500 if (!IS_ENABLED(CONFIG_RFS_ACCEL)) {
2501 struct irq_affinity_notify *affinity_notify;
2503 affinity_notify = &q_vector->affinity_notify;
2504 affinity_notify->notify = ice_irq_affinity_notify;
2505 affinity_notify->release = ice_irq_affinity_release;
2506 irq_set_affinity_notifier(irq_num, affinity_notify);
2509 /* assign the mask for this irq */
2510 irq_set_affinity_hint(irq_num, &q_vector->affinity_mask);
2513 err = ice_set_cpu_rx_rmap(vsi);
2515 netdev_err(vsi->netdev, "Failed to setup CPU RMAP on VSI %u: %pe\n",
2516 vsi->vsi_num, ERR_PTR(err));
2520 vsi->irqs_ready = true;
2526 irq_num = pf->msix_entries[base + vector].vector;
2527 if (!IS_ENABLED(CONFIG_RFS_ACCEL))
2528 irq_set_affinity_notifier(irq_num, NULL);
2529 irq_set_affinity_hint(irq_num, NULL);
2530 devm_free_irq(dev, irq_num, &vsi->q_vectors[vector]);
2536 * ice_xdp_alloc_setup_rings - Allocate and setup Tx rings for XDP
2537 * @vsi: VSI to setup Tx rings used by XDP
2539 * Return 0 on success and negative value on error
2541 static int ice_xdp_alloc_setup_rings(struct ice_vsi *vsi)
2543 struct device *dev = ice_pf_to_dev(vsi->back);
2544 struct ice_tx_desc *tx_desc;
2547 ice_for_each_xdp_txq(vsi, i) {
2548 u16 xdp_q_idx = vsi->alloc_txq + i;
2549 struct ice_tx_ring *xdp_ring;
2551 xdp_ring = kzalloc(sizeof(*xdp_ring), GFP_KERNEL);
2554 goto free_xdp_rings;
2556 xdp_ring->q_index = xdp_q_idx;
2557 xdp_ring->reg_idx = vsi->txq_map[xdp_q_idx];
2558 xdp_ring->vsi = vsi;
2559 xdp_ring->netdev = NULL;
2560 xdp_ring->dev = dev;
2561 xdp_ring->count = vsi->num_tx_desc;
2562 xdp_ring->next_dd = ICE_RING_QUARTER(xdp_ring) - 1;
2563 xdp_ring->next_rs = ICE_RING_QUARTER(xdp_ring) - 1;
2564 WRITE_ONCE(vsi->xdp_rings[i], xdp_ring);
2565 if (ice_setup_tx_ring(xdp_ring))
2566 goto free_xdp_rings;
2567 ice_set_ring_xdp(xdp_ring);
2568 xdp_ring->xsk_pool = ice_tx_xsk_pool(xdp_ring);
2569 spin_lock_init(&xdp_ring->tx_lock);
2570 for (j = 0; j < xdp_ring->count; j++) {
2571 tx_desc = ICE_TX_DESC(xdp_ring, j);
2572 tx_desc->cmd_type_offset_bsz = 0;
2576 ice_for_each_rxq(vsi, i) {
2577 if (static_key_enabled(&ice_xdp_locking_key))
2578 vsi->rx_rings[i]->xdp_ring = vsi->xdp_rings[i % vsi->num_xdp_txq];
2580 vsi->rx_rings[i]->xdp_ring = vsi->xdp_rings[i];
2587 if (vsi->xdp_rings[i] && vsi->xdp_rings[i]->desc)
2588 ice_free_tx_ring(vsi->xdp_rings[i]);
2593 * ice_vsi_assign_bpf_prog - set or clear bpf prog pointer on VSI
2594 * @vsi: VSI to set the bpf prog on
2595 * @prog: the bpf prog pointer
2597 static void ice_vsi_assign_bpf_prog(struct ice_vsi *vsi, struct bpf_prog *prog)
2599 struct bpf_prog *old_prog;
2602 old_prog = xchg(&vsi->xdp_prog, prog);
2604 bpf_prog_put(old_prog);
2606 ice_for_each_rxq(vsi, i)
2607 WRITE_ONCE(vsi->rx_rings[i]->xdp_prog, vsi->xdp_prog);
2611 * ice_prepare_xdp_rings - Allocate, configure and setup Tx rings for XDP
2612 * @vsi: VSI to bring up Tx rings used by XDP
2613 * @prog: bpf program that will be assigned to VSI
2615 * Return 0 on success and negative value on error
2617 int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog)
2619 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };
2620 int xdp_rings_rem = vsi->num_xdp_txq;
2621 struct ice_pf *pf = vsi->back;
2622 struct ice_qs_cfg xdp_qs_cfg = {
2623 .qs_mutex = &pf->avail_q_mutex,
2624 .pf_map = pf->avail_txqs,
2625 .pf_map_size = pf->max_pf_txqs,
2626 .q_count = vsi->num_xdp_txq,
2627 .scatter_count = ICE_MAX_SCATTER_TXQS,
2628 .vsi_map = vsi->txq_map,
2629 .vsi_map_offset = vsi->alloc_txq,
2630 .mapping_mode = ICE_VSI_MAP_CONTIG
2636 dev = ice_pf_to_dev(pf);
2637 vsi->xdp_rings = devm_kcalloc(dev, vsi->num_xdp_txq,
2638 sizeof(*vsi->xdp_rings), GFP_KERNEL);
2639 if (!vsi->xdp_rings)
2642 vsi->xdp_mapping_mode = xdp_qs_cfg.mapping_mode;
2643 if (__ice_vsi_get_qs(&xdp_qs_cfg))
2646 if (static_key_enabled(&ice_xdp_locking_key))
2647 netdev_warn(vsi->netdev,
2648 "Could not allocate one XDP Tx ring per CPU, XDP_TX/XDP_REDIRECT actions will be slower\n");
2650 if (ice_xdp_alloc_setup_rings(vsi))
2651 goto clear_xdp_rings;
2653 /* follow the logic from ice_vsi_map_rings_to_vectors */
2654 ice_for_each_q_vector(vsi, v_idx) {
2655 struct ice_q_vector *q_vector = vsi->q_vectors[v_idx];
2656 int xdp_rings_per_v, q_id, q_base;
2658 xdp_rings_per_v = DIV_ROUND_UP(xdp_rings_rem,
2659 vsi->num_q_vectors - v_idx);
2660 q_base = vsi->num_xdp_txq - xdp_rings_rem;
2662 for (q_id = q_base; q_id < (q_base + xdp_rings_per_v); q_id++) {
2663 struct ice_tx_ring *xdp_ring = vsi->xdp_rings[q_id];
2665 xdp_ring->q_vector = q_vector;
2666 xdp_ring->next = q_vector->tx.tx_ring;
2667 q_vector->tx.tx_ring = xdp_ring;
2669 xdp_rings_rem -= xdp_rings_per_v;
2672 /* omit the scheduler update if in reset path; XDP queues will be
2673 * taken into account at the end of ice_vsi_rebuild, where
2674 * ice_cfg_vsi_lan is being called
2676 if (ice_is_reset_in_progress(pf->state))
2679 /* tell the Tx scheduler that right now we have
2682 for (i = 0; i < vsi->tc_cfg.numtc; i++)
2683 max_txqs[i] = vsi->num_txq + vsi->num_xdp_txq;
2685 status = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc,
2688 dev_err(dev, "Failed VSI LAN queue config for XDP, error: %d\n",
2690 goto clear_xdp_rings;
2693 /* assign the prog only when it's not already present on VSI;
2694 * this flow is a subject of both ethtool -L and ndo_bpf flows;
2695 * VSI rebuild that happens under ethtool -L can expose us to
2696 * the bpf_prog refcount issues as we would be swapping same
2697 * bpf_prog pointers from vsi->xdp_prog and calling bpf_prog_put
2698 * on it as it would be treated as an 'old_prog'; for ndo_bpf
2699 * this is not harmful as dev_xdp_install bumps the refcount
2700 * before calling the op exposed by the driver;
2702 if (!ice_is_xdp_ena_vsi(vsi))
2703 ice_vsi_assign_bpf_prog(vsi, prog);
2707 ice_for_each_xdp_txq(vsi, i)
2708 if (vsi->xdp_rings[i]) {
2709 kfree_rcu(vsi->xdp_rings[i], rcu);
2710 vsi->xdp_rings[i] = NULL;
2714 mutex_lock(&pf->avail_q_mutex);
2715 ice_for_each_xdp_txq(vsi, i) {
2716 clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs);
2717 vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX;
2719 mutex_unlock(&pf->avail_q_mutex);
2721 devm_kfree(dev, vsi->xdp_rings);
2726 * ice_destroy_xdp_rings - undo the configuration made by ice_prepare_xdp_rings
2727 * @vsi: VSI to remove XDP rings
2729 * Detach XDP rings from irq vectors, clean up the PF bitmap and free
2732 int ice_destroy_xdp_rings(struct ice_vsi *vsi)
2734 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };
2735 struct ice_pf *pf = vsi->back;
2738 /* q_vectors are freed in reset path so there's no point in detaching
2739 * rings; in case of rebuild being triggered not from reset bits
2740 * in pf->state won't be set, so additionally check first q_vector
2743 if (ice_is_reset_in_progress(pf->state) || !vsi->q_vectors[0])
2746 ice_for_each_q_vector(vsi, v_idx) {
2747 struct ice_q_vector *q_vector = vsi->q_vectors[v_idx];
2748 struct ice_tx_ring *ring;
2750 ice_for_each_tx_ring(ring, q_vector->tx)
2751 if (!ring->tx_buf || !ice_ring_is_xdp(ring))
2754 /* restore the value of last node prior to XDP setup */
2755 q_vector->tx.tx_ring = ring;
2759 mutex_lock(&pf->avail_q_mutex);
2760 ice_for_each_xdp_txq(vsi, i) {
2761 clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs);
2762 vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX;
2764 mutex_unlock(&pf->avail_q_mutex);
2766 ice_for_each_xdp_txq(vsi, i)
2767 if (vsi->xdp_rings[i]) {
2768 if (vsi->xdp_rings[i]->desc) {
2770 ice_free_tx_ring(vsi->xdp_rings[i]);
2772 kfree_rcu(vsi->xdp_rings[i], rcu);
2773 vsi->xdp_rings[i] = NULL;
2776 devm_kfree(ice_pf_to_dev(pf), vsi->xdp_rings);
2777 vsi->xdp_rings = NULL;
2779 if (static_key_enabled(&ice_xdp_locking_key))
2780 static_branch_dec(&ice_xdp_locking_key);
2782 if (ice_is_reset_in_progress(pf->state) || !vsi->q_vectors[0])
2785 ice_vsi_assign_bpf_prog(vsi, NULL);
2787 /* notify Tx scheduler that we destroyed XDP queues and bring
2788 * back the old number of child nodes
2790 for (i = 0; i < vsi->tc_cfg.numtc; i++)
2791 max_txqs[i] = vsi->num_txq;
2793 /* change number of XDP Tx queues to 0 */
2794 vsi->num_xdp_txq = 0;
2796 return ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc,
2801 * ice_vsi_rx_napi_schedule - Schedule napi on RX queues from VSI
2802 * @vsi: VSI to schedule napi on
2804 static void ice_vsi_rx_napi_schedule(struct ice_vsi *vsi)
2808 ice_for_each_rxq(vsi, i) {
2809 struct ice_rx_ring *rx_ring = vsi->rx_rings[i];
2811 if (rx_ring->xsk_pool)
2812 napi_schedule(&rx_ring->q_vector->napi);
2817 * ice_vsi_determine_xdp_res - figure out how many Tx qs can XDP have
2818 * @vsi: VSI to determine the count of XDP Tx qs
2820 * returns 0 if Tx qs count is higher than at least half of CPU count,
2823 int ice_vsi_determine_xdp_res(struct ice_vsi *vsi)
2825 u16 avail = ice_get_avail_txq_count(vsi->back);
2826 u16 cpus = num_possible_cpus();
2828 if (avail < cpus / 2)
2831 vsi->num_xdp_txq = min_t(u16, avail, cpus);
2833 if (vsi->num_xdp_txq < cpus)
2834 static_branch_inc(&ice_xdp_locking_key);
2840 * ice_xdp_setup_prog - Add or remove XDP eBPF program
2841 * @vsi: VSI to setup XDP for
2842 * @prog: XDP program
2843 * @extack: netlink extended ack
2846 ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog,
2847 struct netlink_ext_ack *extack)
2849 int frame_size = vsi->netdev->mtu + ICE_ETH_PKT_HDR_PAD;
2850 bool if_running = netif_running(vsi->netdev);
2851 int ret = 0, xdp_ring_err = 0;
2853 if (frame_size > vsi->rx_buf_len) {
2854 NL_SET_ERR_MSG_MOD(extack, "MTU too large for loading XDP");
2858 /* need to stop netdev while setting up the program for Rx rings */
2859 if (if_running && !test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {
2860 ret = ice_down(vsi);
2862 NL_SET_ERR_MSG_MOD(extack, "Preparing device for XDP attach failed");
2867 if (!ice_is_xdp_ena_vsi(vsi) && prog) {
2868 xdp_ring_err = ice_vsi_determine_xdp_res(vsi);
2870 NL_SET_ERR_MSG_MOD(extack, "Not enough Tx resources for XDP");
2872 xdp_ring_err = ice_prepare_xdp_rings(vsi, prog);
2874 NL_SET_ERR_MSG_MOD(extack, "Setting up XDP Tx resources failed");
2876 } else if (ice_is_xdp_ena_vsi(vsi) && !prog) {
2877 xdp_ring_err = ice_destroy_xdp_rings(vsi);
2879 NL_SET_ERR_MSG_MOD(extack, "Freeing XDP Tx resources failed");
2881 /* safe to call even when prog == vsi->xdp_prog as
2882 * dev_xdp_install in net/core/dev.c incremented prog's
2883 * refcount so corresponding bpf_prog_put won't cause
2886 ice_vsi_assign_bpf_prog(vsi, prog);
2893 ice_vsi_rx_napi_schedule(vsi);
2895 return (ret || xdp_ring_err) ? -ENOMEM : 0;
2899 * ice_xdp_safe_mode - XDP handler for safe mode
2903 static int ice_xdp_safe_mode(struct net_device __always_unused *dev,
2904 struct netdev_bpf *xdp)
2906 NL_SET_ERR_MSG_MOD(xdp->extack,
2907 "Please provide working DDP firmware package in order to use XDP\n"
2908 "Refer to Documentation/networking/device_drivers/ethernet/intel/ice.rst");
2913 * ice_xdp - implements XDP handler
2917 static int ice_xdp(struct net_device *dev, struct netdev_bpf *xdp)
2919 struct ice_netdev_priv *np = netdev_priv(dev);
2920 struct ice_vsi *vsi = np->vsi;
2922 if (vsi->type != ICE_VSI_PF) {
2923 NL_SET_ERR_MSG_MOD(xdp->extack, "XDP can be loaded only on PF VSI");
2927 switch (xdp->command) {
2928 case XDP_SETUP_PROG:
2929 return ice_xdp_setup_prog(vsi, xdp->prog, xdp->extack);
2930 case XDP_SETUP_XSK_POOL:
2931 return ice_xsk_pool_setup(vsi, xdp->xsk.pool,
2939 * ice_ena_misc_vector - enable the non-queue interrupts
2940 * @pf: board private structure
2942 static void ice_ena_misc_vector(struct ice_pf *pf)
2944 struct ice_hw *hw = &pf->hw;
2947 /* Disable anti-spoof detection interrupt to prevent spurious event
2948 * interrupts during a function reset. Anti-spoof functionally is
2951 val = rd32(hw, GL_MDCK_TX_TDPU);
2952 val |= GL_MDCK_TX_TDPU_RCU_ANTISPOOF_ITR_DIS_M;
2953 wr32(hw, GL_MDCK_TX_TDPU, val);
2955 /* clear things first */
2956 wr32(hw, PFINT_OICR_ENA, 0); /* disable all */
2957 rd32(hw, PFINT_OICR); /* read to clear */
2959 val = (PFINT_OICR_ECC_ERR_M |
2960 PFINT_OICR_MAL_DETECT_M |
2962 PFINT_OICR_PCI_EXCEPTION_M |
2964 PFINT_OICR_HMC_ERR_M |
2965 PFINT_OICR_PE_PUSH_M |
2966 PFINT_OICR_PE_CRITERR_M);
2968 wr32(hw, PFINT_OICR_ENA, val);
2970 /* SW_ITR_IDX = 0, but don't change INTENA */
2971 wr32(hw, GLINT_DYN_CTL(pf->oicr_idx),
2972 GLINT_DYN_CTL_SW_ITR_INDX_M | GLINT_DYN_CTL_INTENA_MSK_M);
2976 * ice_misc_intr - misc interrupt handler
2977 * @irq: interrupt number
2978 * @data: pointer to a q_vector
2980 static irqreturn_t ice_misc_intr(int __always_unused irq, void *data)
2982 struct ice_pf *pf = (struct ice_pf *)data;
2983 struct ice_hw *hw = &pf->hw;
2984 irqreturn_t ret = IRQ_NONE;
2988 dev = ice_pf_to_dev(pf);
2989 set_bit(ICE_ADMINQ_EVENT_PENDING, pf->state);
2990 set_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state);
2991 set_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state);
2993 oicr = rd32(hw, PFINT_OICR);
2994 ena_mask = rd32(hw, PFINT_OICR_ENA);
2996 if (oicr & PFINT_OICR_SWINT_M) {
2997 ena_mask &= ~PFINT_OICR_SWINT_M;
3001 if (oicr & PFINT_OICR_MAL_DETECT_M) {
3002 ena_mask &= ~PFINT_OICR_MAL_DETECT_M;
3003 set_bit(ICE_MDD_EVENT_PENDING, pf->state);
3005 if (oicr & PFINT_OICR_VFLR_M) {
3006 /* disable any further VFLR event notifications */
3007 if (test_bit(ICE_VF_RESETS_DISABLED, pf->state)) {
3008 u32 reg = rd32(hw, PFINT_OICR_ENA);
3010 reg &= ~PFINT_OICR_VFLR_M;
3011 wr32(hw, PFINT_OICR_ENA, reg);
3013 ena_mask &= ~PFINT_OICR_VFLR_M;
3014 set_bit(ICE_VFLR_EVENT_PENDING, pf->state);
3018 if (oicr & PFINT_OICR_GRST_M) {
3021 /* we have a reset warning */
3022 ena_mask &= ~PFINT_OICR_GRST_M;
3023 reset = (rd32(hw, GLGEN_RSTAT) & GLGEN_RSTAT_RESET_TYPE_M) >>
3024 GLGEN_RSTAT_RESET_TYPE_S;
3026 if (reset == ICE_RESET_CORER)
3028 else if (reset == ICE_RESET_GLOBR)
3030 else if (reset == ICE_RESET_EMPR)
3033 dev_dbg(dev, "Invalid reset type %d\n", reset);
3035 /* If a reset cycle isn't already in progress, we set a bit in
3036 * pf->state so that the service task can start a reset/rebuild.
3038 if (!test_and_set_bit(ICE_RESET_OICR_RECV, pf->state)) {
3039 if (reset == ICE_RESET_CORER)
3040 set_bit(ICE_CORER_RECV, pf->state);
3041 else if (reset == ICE_RESET_GLOBR)
3042 set_bit(ICE_GLOBR_RECV, pf->state);
3044 set_bit(ICE_EMPR_RECV, pf->state);
3046 /* There are couple of different bits at play here.
3047 * hw->reset_ongoing indicates whether the hardware is
3048 * in reset. This is set to true when a reset interrupt
3049 * is received and set back to false after the driver
3050 * has determined that the hardware is out of reset.
3052 * ICE_RESET_OICR_RECV in pf->state indicates
3053 * that a post reset rebuild is required before the
3054 * driver is operational again. This is set above.
3056 * As this is the start of the reset/rebuild cycle, set
3057 * both to indicate that.
3059 hw->reset_ongoing = true;
3063 if (oicr & PFINT_OICR_TSYN_TX_M) {
3064 ena_mask &= ~PFINT_OICR_TSYN_TX_M;
3065 ice_ptp_process_ts(pf);
3068 if (oicr & PFINT_OICR_TSYN_EVNT_M) {
3069 u8 tmr_idx = hw->func_caps.ts_func_info.tmr_index_owned;
3070 u32 gltsyn_stat = rd32(hw, GLTSYN_STAT(tmr_idx));
3072 /* Save EVENTs from GTSYN register */
3073 pf->ptp.ext_ts_irq |= gltsyn_stat & (GLTSYN_STAT_EVENT0_M |
3074 GLTSYN_STAT_EVENT1_M |
3075 GLTSYN_STAT_EVENT2_M);
3076 ena_mask &= ~PFINT_OICR_TSYN_EVNT_M;
3077 kthread_queue_work(pf->ptp.kworker, &pf->ptp.extts_work);
3080 #define ICE_AUX_CRIT_ERR (PFINT_OICR_PE_CRITERR_M | PFINT_OICR_HMC_ERR_M | PFINT_OICR_PE_PUSH_M)
3081 if (oicr & ICE_AUX_CRIT_ERR) {
3082 pf->oicr_err_reg |= oicr;
3083 set_bit(ICE_AUX_ERR_PENDING, pf->state);
3084 ena_mask &= ~ICE_AUX_CRIT_ERR;
3087 /* Report any remaining unexpected interrupts */
3090 dev_dbg(dev, "unhandled interrupt oicr=0x%08x\n", oicr);
3091 /* If a critical error is pending there is no choice but to
3094 if (oicr & (PFINT_OICR_PCI_EXCEPTION_M |
3095 PFINT_OICR_ECC_ERR_M)) {
3096 set_bit(ICE_PFR_REQ, pf->state);
3097 ice_service_task_schedule(pf);
3102 ice_service_task_schedule(pf);
3103 ice_irq_dynamic_ena(hw, NULL, NULL);
3109 * ice_dis_ctrlq_interrupts - disable control queue interrupts
3110 * @hw: pointer to HW structure
3112 static void ice_dis_ctrlq_interrupts(struct ice_hw *hw)
3114 /* disable Admin queue Interrupt causes */
3115 wr32(hw, PFINT_FW_CTL,
3116 rd32(hw, PFINT_FW_CTL) & ~PFINT_FW_CTL_CAUSE_ENA_M);
3118 /* disable Mailbox queue Interrupt causes */
3119 wr32(hw, PFINT_MBX_CTL,
3120 rd32(hw, PFINT_MBX_CTL) & ~PFINT_MBX_CTL_CAUSE_ENA_M);
3122 wr32(hw, PFINT_SB_CTL,
3123 rd32(hw, PFINT_SB_CTL) & ~PFINT_SB_CTL_CAUSE_ENA_M);
3125 /* disable Control queue Interrupt causes */
3126 wr32(hw, PFINT_OICR_CTL,
3127 rd32(hw, PFINT_OICR_CTL) & ~PFINT_OICR_CTL_CAUSE_ENA_M);
3133 * ice_free_irq_msix_misc - Unroll misc vector setup
3134 * @pf: board private structure
3136 static void ice_free_irq_msix_misc(struct ice_pf *pf)
3138 struct ice_hw *hw = &pf->hw;
3140 ice_dis_ctrlq_interrupts(hw);
3142 /* disable OICR interrupt */
3143 wr32(hw, PFINT_OICR_ENA, 0);
3146 if (pf->msix_entries) {
3147 synchronize_irq(pf->msix_entries[pf->oicr_idx].vector);
3148 devm_free_irq(ice_pf_to_dev(pf),
3149 pf->msix_entries[pf->oicr_idx].vector, pf);
3152 pf->num_avail_sw_msix += 1;
3153 ice_free_res(pf->irq_tracker, pf->oicr_idx, ICE_RES_MISC_VEC_ID);
3157 * ice_ena_ctrlq_interrupts - enable control queue interrupts
3158 * @hw: pointer to HW structure
3159 * @reg_idx: HW vector index to associate the control queue interrupts with
3161 static void ice_ena_ctrlq_interrupts(struct ice_hw *hw, u16 reg_idx)
3165 val = ((reg_idx & PFINT_OICR_CTL_MSIX_INDX_M) |
3166 PFINT_OICR_CTL_CAUSE_ENA_M);
3167 wr32(hw, PFINT_OICR_CTL, val);
3169 /* enable Admin queue Interrupt causes */
3170 val = ((reg_idx & PFINT_FW_CTL_MSIX_INDX_M) |
3171 PFINT_FW_CTL_CAUSE_ENA_M);
3172 wr32(hw, PFINT_FW_CTL, val);
3174 /* enable Mailbox queue Interrupt causes */
3175 val = ((reg_idx & PFINT_MBX_CTL_MSIX_INDX_M) |
3176 PFINT_MBX_CTL_CAUSE_ENA_M);
3177 wr32(hw, PFINT_MBX_CTL, val);
3179 /* This enables Sideband queue Interrupt causes */
3180 val = ((reg_idx & PFINT_SB_CTL_MSIX_INDX_M) |
3181 PFINT_SB_CTL_CAUSE_ENA_M);
3182 wr32(hw, PFINT_SB_CTL, val);
3188 * ice_req_irq_msix_misc - Setup the misc vector to handle non queue events
3189 * @pf: board private structure
3191 * This sets up the handler for MSIX 0, which is used to manage the
3192 * non-queue interrupts, e.g. AdminQ and errors. This is not used
3193 * when in MSI or Legacy interrupt mode.
3195 static int ice_req_irq_msix_misc(struct ice_pf *pf)
3197 struct device *dev = ice_pf_to_dev(pf);
3198 struct ice_hw *hw = &pf->hw;
3199 int oicr_idx, err = 0;
3201 if (!pf->int_name[0])
3202 snprintf(pf->int_name, sizeof(pf->int_name) - 1, "%s-%s:misc",
3203 dev_driver_string(dev), dev_name(dev));
3205 /* Do not request IRQ but do enable OICR interrupt since settings are
3206 * lost during reset. Note that this function is called only during
3207 * rebuild path and not while reset is in progress.
3209 if (ice_is_reset_in_progress(pf->state))
3212 /* reserve one vector in irq_tracker for misc interrupts */
3213 oicr_idx = ice_get_res(pf, pf->irq_tracker, 1, ICE_RES_MISC_VEC_ID);
3217 pf->num_avail_sw_msix -= 1;
3218 pf->oicr_idx = (u16)oicr_idx;
3220 err = devm_request_irq(dev, pf->msix_entries[pf->oicr_idx].vector,
3221 ice_misc_intr, 0, pf->int_name, pf);
3223 dev_err(dev, "devm_request_irq for %s failed: %d\n",
3225 ice_free_res(pf->irq_tracker, 1, ICE_RES_MISC_VEC_ID);
3226 pf->num_avail_sw_msix += 1;
3231 ice_ena_misc_vector(pf);
3233 ice_ena_ctrlq_interrupts(hw, pf->oicr_idx);
3234 wr32(hw, GLINT_ITR(ICE_RX_ITR, pf->oicr_idx),
3235 ITR_REG_ALIGN(ICE_ITR_8K) >> ICE_ITR_GRAN_S);
3238 ice_irq_dynamic_ena(hw, NULL, NULL);
3244 * ice_napi_add - register NAPI handler for the VSI
3245 * @vsi: VSI for which NAPI handler is to be registered
3247 * This function is only called in the driver's load path. Registering the NAPI
3248 * handler is done in ice_vsi_alloc_q_vector() for all other cases (i.e. resume,
3249 * reset/rebuild, etc.)
3251 static void ice_napi_add(struct ice_vsi *vsi)
3258 ice_for_each_q_vector(vsi, v_idx)
3259 netif_napi_add(vsi->netdev, &vsi->q_vectors[v_idx]->napi,
3260 ice_napi_poll, NAPI_POLL_WEIGHT);
3264 * ice_set_ops - set netdev and ethtools ops for the given netdev
3265 * @netdev: netdev instance
3267 static void ice_set_ops(struct net_device *netdev)
3269 struct ice_pf *pf = ice_netdev_to_pf(netdev);
3271 if (ice_is_safe_mode(pf)) {
3272 netdev->netdev_ops = &ice_netdev_safe_mode_ops;
3273 ice_set_ethtool_safe_mode_ops(netdev);
3277 netdev->netdev_ops = &ice_netdev_ops;
3278 netdev->udp_tunnel_nic_info = &pf->hw.udp_tunnel_nic;
3279 ice_set_ethtool_ops(netdev);
3283 * ice_set_netdev_features - set features for the given netdev
3284 * @netdev: netdev instance
3286 static void ice_set_netdev_features(struct net_device *netdev)
3288 struct ice_pf *pf = ice_netdev_to_pf(netdev);
3289 bool is_dvm_ena = ice_is_dvm_ena(&pf->hw);
3290 netdev_features_t csumo_features;
3291 netdev_features_t vlano_features;
3292 netdev_features_t dflt_features;
3293 netdev_features_t tso_features;
3295 if (ice_is_safe_mode(pf)) {
3297 netdev->features = NETIF_F_SG | NETIF_F_HIGHDMA;
3298 netdev->hw_features = netdev->features;
3302 dflt_features = NETIF_F_SG |
3307 csumo_features = NETIF_F_RXCSUM |
3312 vlano_features = NETIF_F_HW_VLAN_CTAG_FILTER |
3313 NETIF_F_HW_VLAN_CTAG_TX |
3314 NETIF_F_HW_VLAN_CTAG_RX;
3316 /* Enable CTAG/STAG filtering by default in Double VLAN Mode (DVM) */
3318 vlano_features |= NETIF_F_HW_VLAN_STAG_FILTER;
3320 tso_features = NETIF_F_TSO |
3324 NETIF_F_GSO_UDP_TUNNEL |
3325 NETIF_F_GSO_GRE_CSUM |
3326 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3327 NETIF_F_GSO_PARTIAL |
3328 NETIF_F_GSO_IPXIP4 |
3329 NETIF_F_GSO_IPXIP6 |
3332 netdev->gso_partial_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM |
3333 NETIF_F_GSO_GRE_CSUM;
3334 /* set features that user can change */
3335 netdev->hw_features = dflt_features | csumo_features |
3336 vlano_features | tso_features;
3338 /* add support for HW_CSUM on packets with MPLS header */
3339 netdev->mpls_features = NETIF_F_HW_CSUM;
3341 /* enable features */
3342 netdev->features |= netdev->hw_features;
3344 netdev->hw_features |= NETIF_F_HW_TC;
3346 /* encap and VLAN devices inherit default, csumo and tso features */
3347 netdev->hw_enc_features |= dflt_features | csumo_features |
3349 netdev->vlan_features |= dflt_features | csumo_features |
3352 /* advertise support but don't enable by default since only one type of
3353 * VLAN offload can be enabled at a time (i.e. CTAG or STAG). When one
3354 * type turns on the other has to be turned off. This is enforced by the
3355 * ice_fix_features() ndo callback.
3358 netdev->hw_features |= NETIF_F_HW_VLAN_STAG_RX |
3359 NETIF_F_HW_VLAN_STAG_TX;
3363 * ice_cfg_netdev - Allocate, configure and register a netdev
3364 * @vsi: the VSI associated with the new netdev
3366 * Returns 0 on success, negative value on failure
3368 static int ice_cfg_netdev(struct ice_vsi *vsi)
3370 struct ice_netdev_priv *np;
3371 struct net_device *netdev;
3372 u8 mac_addr[ETH_ALEN];
3374 netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq,
3379 set_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
3380 vsi->netdev = netdev;
3381 np = netdev_priv(netdev);
3384 ice_set_netdev_features(netdev);
3386 ice_set_ops(netdev);
3388 if (vsi->type == ICE_VSI_PF) {
3389 SET_NETDEV_DEV(netdev, ice_pf_to_dev(vsi->back));
3390 ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr);
3391 eth_hw_addr_set(netdev, mac_addr);
3392 ether_addr_copy(netdev->perm_addr, mac_addr);
3395 netdev->priv_flags |= IFF_UNICAST_FLT;
3397 /* Setup netdev TC information */
3398 ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc);
3400 /* setup watchdog timeout value to be 5 second */
3401 netdev->watchdog_timeo = 5 * HZ;
3403 netdev->min_mtu = ETH_MIN_MTU;
3404 netdev->max_mtu = ICE_MAX_MTU;
3410 * ice_fill_rss_lut - Fill the RSS lookup table with default values
3411 * @lut: Lookup table
3412 * @rss_table_size: Lookup table size
3413 * @rss_size: Range of queue number for hashing
3415 void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size)
3419 for (i = 0; i < rss_table_size; i++)
3420 lut[i] = i % rss_size;
3424 * ice_pf_vsi_setup - Set up a PF VSI
3425 * @pf: board private structure
3426 * @pi: pointer to the port_info instance
3428 * Returns pointer to the successfully allocated VSI software struct
3429 * on success, otherwise returns NULL on failure.
3431 static struct ice_vsi *
3432 ice_pf_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)
3434 return ice_vsi_setup(pf, pi, ICE_VSI_PF, NULL, NULL);
3437 static struct ice_vsi *
3438 ice_chnl_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi,
3439 struct ice_channel *ch)
3441 return ice_vsi_setup(pf, pi, ICE_VSI_CHNL, NULL, ch);
3445 * ice_ctrl_vsi_setup - Set up a control VSI
3446 * @pf: board private structure
3447 * @pi: pointer to the port_info instance
3449 * Returns pointer to the successfully allocated VSI software struct
3450 * on success, otherwise returns NULL on failure.
3452 static struct ice_vsi *
3453 ice_ctrl_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)
3455 return ice_vsi_setup(pf, pi, ICE_VSI_CTRL, NULL, NULL);
3459 * ice_lb_vsi_setup - Set up a loopback VSI
3460 * @pf: board private structure
3461 * @pi: pointer to the port_info instance
3463 * Returns pointer to the successfully allocated VSI software struct
3464 * on success, otherwise returns NULL on failure.
3467 ice_lb_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)
3469 return ice_vsi_setup(pf, pi, ICE_VSI_LB, NULL, NULL);
3473 * ice_vlan_rx_add_vid - Add a VLAN ID filter to HW offload
3474 * @netdev: network interface to be adjusted
3476 * @vid: VLAN ID to be added
3478 * net_device_ops implementation for adding VLAN IDs
3481 ice_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
3483 struct ice_netdev_priv *np = netdev_priv(netdev);
3484 struct ice_vsi_vlan_ops *vlan_ops;
3485 struct ice_vsi *vsi = np->vsi;
3486 struct ice_vlan vlan;
3489 /* VLAN 0 is added by default during load/reset */
3493 while (test_and_set_bit(ICE_CFG_BUSY, vsi->state))
3494 usleep_range(1000, 2000);
3496 /* Add multicast promisc rule for the VLAN ID to be added if
3497 * all-multicast is currently enabled.
3499 if (vsi->current_netdev_flags & IFF_ALLMULTI) {
3500 ret = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,
3501 ICE_MCAST_VLAN_PROMISC_BITS,
3507 vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
3509 /* Add a switch rule for this VLAN ID so its corresponding VLAN tagged
3510 * packets aren't pruned by the device's internal switch on Rx
3512 vlan = ICE_VLAN(be16_to_cpu(proto), vid, 0);
3513 ret = vlan_ops->add_vlan(vsi, &vlan);
3517 /* If all-multicast is currently enabled and this VLAN ID is only one
3518 * besides VLAN-0 we have to update look-up type of multicast promisc
3519 * rule for VLAN-0 from ICE_SW_LKUP_PROMISC to ICE_SW_LKUP_PROMISC_VLAN.
3521 if ((vsi->current_netdev_flags & IFF_ALLMULTI) &&
3522 ice_vsi_num_non_zero_vlans(vsi) == 1) {
3523 ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx,
3524 ICE_MCAST_PROMISC_BITS, 0);
3525 ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,
3526 ICE_MCAST_VLAN_PROMISC_BITS, 0);
3530 clear_bit(ICE_CFG_BUSY, vsi->state);
3536 * ice_vlan_rx_kill_vid - Remove a VLAN ID filter from HW offload
3537 * @netdev: network interface to be adjusted
3539 * @vid: VLAN ID to be removed
3541 * net_device_ops implementation for removing VLAN IDs
3544 ice_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
3546 struct ice_netdev_priv *np = netdev_priv(netdev);
3547 struct ice_vsi_vlan_ops *vlan_ops;
3548 struct ice_vsi *vsi = np->vsi;
3549 struct ice_vlan vlan;
3552 /* don't allow removal of VLAN 0 */
3556 while (test_and_set_bit(ICE_CFG_BUSY, vsi->state))
3557 usleep_range(1000, 2000);
3559 vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
3561 /* Make sure VLAN delete is successful before updating VLAN
3564 vlan = ICE_VLAN(be16_to_cpu(proto), vid, 0);
3565 ret = vlan_ops->del_vlan(vsi, &vlan);
3569 /* Remove multicast promisc rule for the removed VLAN ID if
3570 * all-multicast is enabled.
3572 if (vsi->current_netdev_flags & IFF_ALLMULTI)
3573 ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx,
3574 ICE_MCAST_VLAN_PROMISC_BITS, vid);
3576 if (!ice_vsi_has_non_zero_vlans(vsi)) {
3577 /* Update look-up type of multicast promisc rule for VLAN 0
3578 * from ICE_SW_LKUP_PROMISC_VLAN to ICE_SW_LKUP_PROMISC when
3579 * all-multicast is enabled and VLAN 0 is the only VLAN rule.
3581 if (vsi->current_netdev_flags & IFF_ALLMULTI) {
3582 ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx,
3583 ICE_MCAST_VLAN_PROMISC_BITS,
3585 ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,
3586 ICE_MCAST_PROMISC_BITS, 0);
3591 clear_bit(ICE_CFG_BUSY, vsi->state);
3597 * ice_rep_indr_tc_block_unbind
3598 * @cb_priv: indirection block private data
3600 static void ice_rep_indr_tc_block_unbind(void *cb_priv)
3602 struct ice_indr_block_priv *indr_priv = cb_priv;
3604 list_del(&indr_priv->list);
3609 * ice_tc_indir_block_unregister - Unregister TC indirect block notifications
3610 * @vsi: VSI struct which has the netdev
3612 static void ice_tc_indir_block_unregister(struct ice_vsi *vsi)
3614 struct ice_netdev_priv *np = netdev_priv(vsi->netdev);
3616 flow_indr_dev_unregister(ice_indr_setup_tc_cb, np,
3617 ice_rep_indr_tc_block_unbind);
3621 * ice_tc_indir_block_remove - clean indirect TC block notifications
3624 static void ice_tc_indir_block_remove(struct ice_pf *pf)
3626 struct ice_vsi *pf_vsi = ice_get_main_vsi(pf);
3631 ice_tc_indir_block_unregister(pf_vsi);
3635 * ice_tc_indir_block_register - Register TC indirect block notifications
3636 * @vsi: VSI struct which has the netdev
3638 * Returns 0 on success, negative value on failure
3640 static int ice_tc_indir_block_register(struct ice_vsi *vsi)
3642 struct ice_netdev_priv *np;
3644 if (!vsi || !vsi->netdev)
3647 np = netdev_priv(vsi->netdev);
3649 INIT_LIST_HEAD(&np->tc_indr_block_priv_list);
3650 return flow_indr_dev_register(ice_indr_setup_tc_cb, np);
3654 * ice_setup_pf_sw - Setup the HW switch on startup or after reset
3655 * @pf: board private structure
3657 * Returns 0 on success, negative value on failure
3659 static int ice_setup_pf_sw(struct ice_pf *pf)
3661 struct device *dev = ice_pf_to_dev(pf);
3662 bool dvm = ice_is_dvm_ena(&pf->hw);
3663 struct ice_vsi *vsi;
3666 if (ice_is_reset_in_progress(pf->state))
3669 status = ice_aq_set_port_params(pf->hw.port_info, dvm, NULL);
3673 vsi = ice_pf_vsi_setup(pf, pf->hw.port_info);
3677 /* init channel list */
3678 INIT_LIST_HEAD(&vsi->ch_list);
3680 status = ice_cfg_netdev(vsi);
3682 goto unroll_vsi_setup;
3683 /* netdev has to be configured before setting frame size */
3684 ice_vsi_cfg_frame_size(vsi);
3686 /* init indirect block notifications */
3687 status = ice_tc_indir_block_register(vsi);
3689 dev_err(dev, "Failed to register netdev notifier\n");
3690 goto unroll_cfg_netdev;
3693 /* Setup DCB netlink interface */
3694 ice_dcbnl_setup(vsi);
3696 /* registering the NAPI handler requires both the queues and
3697 * netdev to be created, which are done in ice_pf_vsi_setup()
3698 * and ice_cfg_netdev() respectively
3702 status = ice_init_mac_fltr(pf);
3704 goto unroll_napi_add;
3709 ice_tc_indir_block_unregister(vsi);
3714 clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
3715 free_netdev(vsi->netdev);
3721 ice_vsi_release(vsi);
3726 * ice_get_avail_q_count - Get count of queues in use
3727 * @pf_qmap: bitmap to get queue use count from
3728 * @lock: pointer to a mutex that protects access to pf_qmap
3729 * @size: size of the bitmap
3732 ice_get_avail_q_count(unsigned long *pf_qmap, struct mutex *lock, u16 size)
3738 for_each_clear_bit(bit, pf_qmap, size)
3746 * ice_get_avail_txq_count - Get count of Tx queues in use
3747 * @pf: pointer to an ice_pf instance
3749 u16 ice_get_avail_txq_count(struct ice_pf *pf)
3751 return ice_get_avail_q_count(pf->avail_txqs, &pf->avail_q_mutex,
3756 * ice_get_avail_rxq_count - Get count of Rx queues in use
3757 * @pf: pointer to an ice_pf instance
3759 u16 ice_get_avail_rxq_count(struct ice_pf *pf)
3761 return ice_get_avail_q_count(pf->avail_rxqs, &pf->avail_q_mutex,
3766 * ice_deinit_pf - Unrolls initialziations done by ice_init_pf
3767 * @pf: board private structure to initialize
3769 static void ice_deinit_pf(struct ice_pf *pf)
3771 ice_service_task_stop(pf);
3772 mutex_destroy(&pf->sw_mutex);
3773 mutex_destroy(&pf->tc_mutex);
3774 mutex_destroy(&pf->avail_q_mutex);
3775 mutex_destroy(&pf->vfs.table_lock);
3777 if (pf->avail_txqs) {
3778 bitmap_free(pf->avail_txqs);
3779 pf->avail_txqs = NULL;
3782 if (pf->avail_rxqs) {
3783 bitmap_free(pf->avail_rxqs);
3784 pf->avail_rxqs = NULL;
3788 ptp_clock_unregister(pf->ptp.clock);
3792 * ice_set_pf_caps - set PFs capability flags
3793 * @pf: pointer to the PF instance
3795 static void ice_set_pf_caps(struct ice_pf *pf)
3797 struct ice_hw_func_caps *func_caps = &pf->hw.func_caps;
3799 clear_bit(ICE_FLAG_RDMA_ENA, pf->flags);
3800 if (func_caps->common_cap.rdma)
3801 set_bit(ICE_FLAG_RDMA_ENA, pf->flags);
3802 clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
3803 if (func_caps->common_cap.dcb)
3804 set_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
3805 clear_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags);
3806 if (func_caps->common_cap.sr_iov_1_1) {
3807 set_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags);
3808 pf->vfs.num_supported = min_t(int, func_caps->num_allocd_vfs,
3811 clear_bit(ICE_FLAG_RSS_ENA, pf->flags);
3812 if (func_caps->common_cap.rss_table_size)
3813 set_bit(ICE_FLAG_RSS_ENA, pf->flags);
3815 clear_bit(ICE_FLAG_FD_ENA, pf->flags);
3816 if (func_caps->fd_fltr_guar > 0 || func_caps->fd_fltr_best_effort > 0) {
3819 /* ctrl_vsi_idx will be set to a valid value when flow director
3820 * is setup by ice_init_fdir
3822 pf->ctrl_vsi_idx = ICE_NO_VSI;
3823 set_bit(ICE_FLAG_FD_ENA, pf->flags);
3824 /* force guaranteed filter pool for PF */
3825 ice_alloc_fd_guar_item(&pf->hw, &unused,
3826 func_caps->fd_fltr_guar);
3827 /* force shared filter pool for PF */
3828 ice_alloc_fd_shrd_item(&pf->hw, &unused,
3829 func_caps->fd_fltr_best_effort);
3832 clear_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags);
3833 if (func_caps->common_cap.ieee_1588)
3834 set_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags);
3836 pf->max_pf_txqs = func_caps->common_cap.num_txq;
3837 pf->max_pf_rxqs = func_caps->common_cap.num_rxq;
3841 * ice_init_pf - Initialize general software structures (struct ice_pf)
3842 * @pf: board private structure to initialize
3844 static int ice_init_pf(struct ice_pf *pf)
3846 ice_set_pf_caps(pf);
3848 mutex_init(&pf->sw_mutex);
3849 mutex_init(&pf->tc_mutex);
3851 INIT_HLIST_HEAD(&pf->aq_wait_list);
3852 spin_lock_init(&pf->aq_wait_lock);
3853 init_waitqueue_head(&pf->aq_wait_queue);
3855 init_waitqueue_head(&pf->reset_wait_queue);
3857 /* setup service timer and periodic service task */
3858 timer_setup(&pf->serv_tmr, ice_service_timer, 0);
3859 pf->serv_tmr_period = HZ;
3860 INIT_WORK(&pf->serv_task, ice_service_task);
3861 clear_bit(ICE_SERVICE_SCHED, pf->state);
3863 mutex_init(&pf->avail_q_mutex);
3864 pf->avail_txqs = bitmap_zalloc(pf->max_pf_txqs, GFP_KERNEL);
3865 if (!pf->avail_txqs)
3868 pf->avail_rxqs = bitmap_zalloc(pf->max_pf_rxqs, GFP_KERNEL);
3869 if (!pf->avail_rxqs) {
3870 devm_kfree(ice_pf_to_dev(pf), pf->avail_txqs);
3871 pf->avail_txqs = NULL;
3875 mutex_init(&pf->vfs.table_lock);
3876 hash_init(pf->vfs.table);
3882 * ice_ena_msix_range - Request a range of MSIX vectors from the OS
3883 * @pf: board private structure
3885 * compute the number of MSIX vectors required (v_budget) and request from
3886 * the OS. Return the number of vectors reserved or negative on failure
3888 static int ice_ena_msix_range(struct ice_pf *pf)
3890 int num_cpus, v_left, v_actual, v_other, v_budget = 0;
3891 struct device *dev = ice_pf_to_dev(pf);
3894 v_left = pf->hw.func_caps.common_cap.num_msix_vectors;
3895 num_cpus = num_online_cpus();
3897 /* reserve for LAN miscellaneous handler */
3898 needed = ICE_MIN_LAN_OICR_MSIX;
3899 if (v_left < needed)
3900 goto no_hw_vecs_left_err;
3904 /* reserve for flow director */
3905 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) {
3906 needed = ICE_FDIR_MSIX;
3907 if (v_left < needed)
3908 goto no_hw_vecs_left_err;
3913 /* reserve for switchdev */
3914 needed = ICE_ESWITCH_MSIX;
3915 if (v_left < needed)
3916 goto no_hw_vecs_left_err;
3920 /* total used for non-traffic vectors */
3923 /* reserve vectors for LAN traffic */
3925 if (v_left < needed)
3926 goto no_hw_vecs_left_err;
3927 pf->num_lan_msix = needed;
3931 /* reserve vectors for RDMA auxiliary driver */
3932 if (ice_is_rdma_ena(pf)) {
3933 needed = num_cpus + ICE_RDMA_NUM_AEQ_MSIX;
3934 if (v_left < needed)
3935 goto no_hw_vecs_left_err;
3936 pf->num_rdma_msix = needed;
3941 pf->msix_entries = devm_kcalloc(dev, v_budget,
3942 sizeof(*pf->msix_entries), GFP_KERNEL);
3943 if (!pf->msix_entries) {
3948 for (i = 0; i < v_budget; i++)
3949 pf->msix_entries[i].entry = i;
3951 /* actually reserve the vectors */
3952 v_actual = pci_enable_msix_range(pf->pdev, pf->msix_entries,
3953 ICE_MIN_MSIX, v_budget);
3955 dev_err(dev, "unable to reserve MSI-X vectors\n");
3960 if (v_actual < v_budget) {
3961 dev_warn(dev, "not enough OS MSI-X vectors. requested = %d, obtained = %d\n",
3962 v_budget, v_actual);
3964 if (v_actual < ICE_MIN_MSIX) {
3965 /* error if we can't get minimum vectors */
3966 pci_disable_msix(pf->pdev);
3970 int v_remain = v_actual - v_other;
3971 int v_rdma = 0, v_min_rdma = 0;
3973 if (ice_is_rdma_ena(pf)) {
3974 /* Need at least 1 interrupt in addition to
3977 v_rdma = ICE_RDMA_NUM_AEQ_MSIX + 1;
3978 v_min_rdma = ICE_MIN_RDMA_MSIX;
3981 if (v_actual == ICE_MIN_MSIX ||
3982 v_remain < ICE_MIN_LAN_TXRX_MSIX + v_min_rdma) {
3983 dev_warn(dev, "Not enough MSI-X vectors to support RDMA.\n");
3984 clear_bit(ICE_FLAG_RDMA_ENA, pf->flags);
3986 pf->num_rdma_msix = 0;
3987 pf->num_lan_msix = ICE_MIN_LAN_TXRX_MSIX;
3988 } else if ((v_remain < ICE_MIN_LAN_TXRX_MSIX + v_rdma) ||
3989 (v_remain - v_rdma < v_rdma)) {
3990 /* Support minimum RDMA and give remaining
3991 * vectors to LAN MSIX
3993 pf->num_rdma_msix = v_min_rdma;
3994 pf->num_lan_msix = v_remain - v_min_rdma;
3996 /* Split remaining MSIX with RDMA after
3997 * accounting for AEQ MSIX
3999 pf->num_rdma_msix = (v_remain - ICE_RDMA_NUM_AEQ_MSIX) / 2 +
4000 ICE_RDMA_NUM_AEQ_MSIX;
4001 pf->num_lan_msix = v_remain - pf->num_rdma_msix;
4004 dev_notice(dev, "Enabled %d MSI-X vectors for LAN traffic.\n",
4007 if (ice_is_rdma_ena(pf))
4008 dev_notice(dev, "Enabled %d MSI-X vectors for RDMA.\n",
4016 devm_kfree(dev, pf->msix_entries);
4019 no_hw_vecs_left_err:
4020 dev_err(dev, "not enough device MSI-X vectors. requested = %d, available = %d\n",
4024 pf->num_rdma_msix = 0;
4025 pf->num_lan_msix = 0;
4030 * ice_dis_msix - Disable MSI-X interrupt setup in OS
4031 * @pf: board private structure
4033 static void ice_dis_msix(struct ice_pf *pf)
4035 pci_disable_msix(pf->pdev);
4036 devm_kfree(ice_pf_to_dev(pf), pf->msix_entries);
4037 pf->msix_entries = NULL;
4041 * ice_clear_interrupt_scheme - Undo things done by ice_init_interrupt_scheme
4042 * @pf: board private structure
4044 static void ice_clear_interrupt_scheme(struct ice_pf *pf)
4048 if (pf->irq_tracker) {
4049 devm_kfree(ice_pf_to_dev(pf), pf->irq_tracker);
4050 pf->irq_tracker = NULL;
4055 * ice_init_interrupt_scheme - Determine proper interrupt scheme
4056 * @pf: board private structure to initialize
4058 static int ice_init_interrupt_scheme(struct ice_pf *pf)
4062 vectors = ice_ena_msix_range(pf);
4067 /* set up vector assignment tracking */
4068 pf->irq_tracker = devm_kzalloc(ice_pf_to_dev(pf),
4069 struct_size(pf->irq_tracker, list, vectors),
4071 if (!pf->irq_tracker) {
4076 /* populate SW interrupts pool with number of OS granted IRQs. */
4077 pf->num_avail_sw_msix = (u16)vectors;
4078 pf->irq_tracker->num_entries = (u16)vectors;
4079 pf->irq_tracker->end = pf->irq_tracker->num_entries;
4085 * ice_is_wol_supported - check if WoL is supported
4086 * @hw: pointer to hardware info
4088 * Check if WoL is supported based on the HW configuration.
4089 * Returns true if NVM supports and enables WoL for this port, false otherwise
4091 bool ice_is_wol_supported(struct ice_hw *hw)
4095 /* A bit set to 1 in the NVM Software Reserved Word 2 (WoL control
4096 * word) indicates WoL is not supported on the corresponding PF ID.
4098 if (ice_read_sr_word(hw, ICE_SR_NVM_WOL_CFG, &wol_ctrl))
4101 return !(BIT(hw->port_info->lport) & wol_ctrl);
4105 * ice_vsi_recfg_qs - Change the number of queues on a VSI
4106 * @vsi: VSI being changed
4107 * @new_rx: new number of Rx queues
4108 * @new_tx: new number of Tx queues
4110 * Only change the number of queues if new_tx, or new_rx is non-0.
4112 * Returns 0 on success.
4114 int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx)
4116 struct ice_pf *pf = vsi->back;
4117 int err = 0, timeout = 50;
4119 if (!new_rx && !new_tx)
4122 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) {
4126 usleep_range(1000, 2000);
4130 vsi->req_txq = (u16)new_tx;
4132 vsi->req_rxq = (u16)new_rx;
4134 /* set for the next time the netdev is started */
4135 if (!netif_running(vsi->netdev)) {
4136 ice_vsi_rebuild(vsi, false);
4137 dev_dbg(ice_pf_to_dev(pf), "Link is down, queue count change happens when link is brought up\n");
4142 ice_vsi_rebuild(vsi, false);
4143 ice_pf_dcb_recfg(pf);
4146 clear_bit(ICE_CFG_BUSY, pf->state);
4151 * ice_set_safe_mode_vlan_cfg - configure PF VSI to allow all VLANs in safe mode
4152 * @pf: PF to configure
4154 * No VLAN offloads/filtering are advertised in safe mode so make sure the PF
4155 * VSI can still Tx/Rx VLAN tagged packets.
4157 static void ice_set_safe_mode_vlan_cfg(struct ice_pf *pf)
4159 struct ice_vsi *vsi = ice_get_main_vsi(pf);
4160 struct ice_vsi_ctx *ctxt;
4167 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
4172 ctxt->info = vsi->info;
4174 ctxt->info.valid_sections =
4175 cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID |
4176 ICE_AQ_VSI_PROP_SECURITY_VALID |
4177 ICE_AQ_VSI_PROP_SW_VALID);
4179 /* disable VLAN anti-spoof */
4180 ctxt->info.sec_flags &= ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
4181 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
4183 /* disable VLAN pruning and keep all other settings */
4184 ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
4186 /* allow all VLANs on Tx and don't strip on Rx */
4187 ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL |
4188 ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING;
4190 status = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
4192 dev_err(ice_pf_to_dev(vsi->back), "Failed to update VSI for safe mode VLANs, err %d aq_err %s\n",
4193 status, ice_aq_str(hw->adminq.sq_last_status));
4195 vsi->info.sec_flags = ctxt->info.sec_flags;
4196 vsi->info.sw_flags2 = ctxt->info.sw_flags2;
4197 vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags;
4204 * ice_log_pkg_init - log result of DDP package load
4205 * @hw: pointer to hardware info
4206 * @state: state of package load
4208 static void ice_log_pkg_init(struct ice_hw *hw, enum ice_ddp_state state)
4210 struct ice_pf *pf = hw->back;
4213 dev = ice_pf_to_dev(pf);
4216 case ICE_DDP_PKG_SUCCESS:
4217 dev_info(dev, "The DDP package was successfully loaded: %s version %d.%d.%d.%d\n",
4218 hw->active_pkg_name,
4219 hw->active_pkg_ver.major,
4220 hw->active_pkg_ver.minor,
4221 hw->active_pkg_ver.update,
4222 hw->active_pkg_ver.draft);
4224 case ICE_DDP_PKG_SAME_VERSION_ALREADY_LOADED:
4225 dev_info(dev, "DDP package already present on device: %s version %d.%d.%d.%d\n",
4226 hw->active_pkg_name,
4227 hw->active_pkg_ver.major,
4228 hw->active_pkg_ver.minor,
4229 hw->active_pkg_ver.update,
4230 hw->active_pkg_ver.draft);
4232 case ICE_DDP_PKG_ALREADY_LOADED_NOT_SUPPORTED:
4233 dev_err(dev, "The device has a DDP package that is not supported by the driver. The device has package '%s' version %d.%d.x.x. The driver requires version %d.%d.x.x. Entering Safe Mode.\n",
4234 hw->active_pkg_name,
4235 hw->active_pkg_ver.major,
4236 hw->active_pkg_ver.minor,
4237 ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR);
4239 case ICE_DDP_PKG_COMPATIBLE_ALREADY_LOADED:
4240 dev_info(dev, "The driver could not load the DDP package file because a compatible DDP package is already present on the device. The device has package '%s' version %d.%d.%d.%d. The package file found by the driver: '%s' version %d.%d.%d.%d.\n",
4241 hw->active_pkg_name,
4242 hw->active_pkg_ver.major,
4243 hw->active_pkg_ver.minor,
4244 hw->active_pkg_ver.update,
4245 hw->active_pkg_ver.draft,
4252 case ICE_DDP_PKG_FW_MISMATCH:
4253 dev_err(dev, "The firmware loaded on the device is not compatible with the DDP package. Please update the device's NVM. Entering safe mode.\n");
4255 case ICE_DDP_PKG_INVALID_FILE:
4256 dev_err(dev, "The DDP package file is invalid. Entering Safe Mode.\n");
4258 case ICE_DDP_PKG_FILE_VERSION_TOO_HIGH:
4259 dev_err(dev, "The DDP package file version is higher than the driver supports. Please use an updated driver. Entering Safe Mode.\n");
4261 case ICE_DDP_PKG_FILE_VERSION_TOO_LOW:
4262 dev_err(dev, "The DDP package file version is lower than the driver supports. The driver requires version %d.%d.x.x. Please use an updated DDP Package file. Entering Safe Mode.\n",
4263 ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR);
4265 case ICE_DDP_PKG_FILE_SIGNATURE_INVALID:
4266 dev_err(dev, "The DDP package could not be loaded because its signature is not valid. Please use a valid DDP Package. Entering Safe Mode.\n");
4268 case ICE_DDP_PKG_FILE_REVISION_TOO_LOW:
4269 dev_err(dev, "The DDP Package could not be loaded because its security revision is too low. Please use an updated DDP Package. Entering Safe Mode.\n");
4271 case ICE_DDP_PKG_LOAD_ERROR:
4272 dev_err(dev, "An error occurred on the device while loading the DDP package. The device will be reset.\n");
4273 /* poll for reset to complete */
4274 if (ice_check_reset(hw))
4275 dev_err(dev, "Error resetting device. Please reload the driver\n");
4277 case ICE_DDP_PKG_ERR:
4279 dev_err(dev, "An unknown error occurred when loading the DDP package. Entering Safe Mode.\n");
4285 * ice_load_pkg - load/reload the DDP Package file
4286 * @firmware: firmware structure when firmware requested or NULL for reload
4287 * @pf: pointer to the PF instance
4289 * Called on probe and post CORER/GLOBR rebuild to load DDP Package and
4290 * initialize HW tables.
4293 ice_load_pkg(const struct firmware *firmware, struct ice_pf *pf)
4295 enum ice_ddp_state state = ICE_DDP_PKG_ERR;
4296 struct device *dev = ice_pf_to_dev(pf);
4297 struct ice_hw *hw = &pf->hw;
4299 /* Load DDP Package */
4300 if (firmware && !hw->pkg_copy) {
4301 state = ice_copy_and_init_pkg(hw, firmware->data,
4303 ice_log_pkg_init(hw, state);
4304 } else if (!firmware && hw->pkg_copy) {
4305 /* Reload package during rebuild after CORER/GLOBR reset */
4306 state = ice_init_pkg(hw, hw->pkg_copy, hw->pkg_size);
4307 ice_log_pkg_init(hw, state);
4309 dev_err(dev, "The DDP package file failed to load. Entering Safe Mode.\n");
4312 if (!ice_is_init_pkg_successful(state)) {
4314 clear_bit(ICE_FLAG_ADV_FEATURES, pf->flags);
4318 /* Successful download package is the precondition for advanced
4319 * features, hence setting the ICE_FLAG_ADV_FEATURES flag
4321 set_bit(ICE_FLAG_ADV_FEATURES, pf->flags);
4325 * ice_verify_cacheline_size - verify driver's assumption of 64 Byte cache lines
4326 * @pf: pointer to the PF structure
4328 * There is no error returned here because the driver should be able to handle
4329 * 128 Byte cache lines, so we only print a warning in case issues are seen,
4330 * specifically with Tx.
4332 static void ice_verify_cacheline_size(struct ice_pf *pf)
4334 if (rd32(&pf->hw, GLPCI_CNF2) & GLPCI_CNF2_CACHELINE_SIZE_M)
4335 dev_warn(ice_pf_to_dev(pf), "%d Byte cache line assumption is invalid, driver may have Tx timeouts!\n",
4336 ICE_CACHE_LINE_BYTES);
4340 * ice_send_version - update firmware with driver version
4343 * Returns 0 on success, else error code
4345 static int ice_send_version(struct ice_pf *pf)
4347 struct ice_driver_ver dv;
4349 dv.major_ver = 0xff;
4350 dv.minor_ver = 0xff;
4351 dv.build_ver = 0xff;
4352 dv.subbuild_ver = 0;
4353 strscpy((char *)dv.driver_string, UTS_RELEASE,
4354 sizeof(dv.driver_string));
4355 return ice_aq_send_driver_ver(&pf->hw, &dv, NULL);
4359 * ice_init_fdir - Initialize flow director VSI and configuration
4360 * @pf: pointer to the PF instance
4362 * returns 0 on success, negative on error
4364 static int ice_init_fdir(struct ice_pf *pf)
4366 struct device *dev = ice_pf_to_dev(pf);
4367 struct ice_vsi *ctrl_vsi;
4370 /* Side Band Flow Director needs to have a control VSI.
4371 * Allocate it and store it in the PF.
4373 ctrl_vsi = ice_ctrl_vsi_setup(pf, pf->hw.port_info);
4375 dev_dbg(dev, "could not create control VSI\n");
4379 err = ice_vsi_open_ctrl(ctrl_vsi);
4381 dev_dbg(dev, "could not open control VSI\n");
4385 mutex_init(&pf->hw.fdir_fltr_lock);
4387 err = ice_fdir_create_dflt_rules(pf);
4394 ice_fdir_release_flows(&pf->hw);
4395 ice_vsi_close(ctrl_vsi);
4397 ice_vsi_release(ctrl_vsi);
4398 if (pf->ctrl_vsi_idx != ICE_NO_VSI) {
4399 pf->vsi[pf->ctrl_vsi_idx] = NULL;
4400 pf->ctrl_vsi_idx = ICE_NO_VSI;
4406 * ice_get_opt_fw_name - return optional firmware file name or NULL
4407 * @pf: pointer to the PF instance
4409 static char *ice_get_opt_fw_name(struct ice_pf *pf)
4411 /* Optional firmware name same as default with additional dash
4412 * followed by a EUI-64 identifier (PCIe Device Serial Number)
4414 struct pci_dev *pdev = pf->pdev;
4415 char *opt_fw_filename;
4418 /* Determine the name of the optional file using the DSN (two
4419 * dwords following the start of the DSN Capability).
4421 dsn = pci_get_dsn(pdev);
4425 opt_fw_filename = kzalloc(NAME_MAX, GFP_KERNEL);
4426 if (!opt_fw_filename)
4429 snprintf(opt_fw_filename, NAME_MAX, "%sice-%016llx.pkg",
4430 ICE_DDP_PKG_PATH, dsn);
4432 return opt_fw_filename;
4436 * ice_request_fw - Device initialization routine
4437 * @pf: pointer to the PF instance
4439 static void ice_request_fw(struct ice_pf *pf)
4441 char *opt_fw_filename = ice_get_opt_fw_name(pf);
4442 const struct firmware *firmware = NULL;
4443 struct device *dev = ice_pf_to_dev(pf);
4446 /* optional device-specific DDP (if present) overrides the default DDP
4447 * package file. kernel logs a debug message if the file doesn't exist,
4448 * and warning messages for other errors.
4450 if (opt_fw_filename) {
4451 err = firmware_request_nowarn(&firmware, opt_fw_filename, dev);
4453 kfree(opt_fw_filename);
4457 /* request for firmware was successful. Download to device */
4458 ice_load_pkg(firmware, pf);
4459 kfree(opt_fw_filename);
4460 release_firmware(firmware);
4465 err = request_firmware(&firmware, ICE_DDP_PKG_FILE, dev);
4467 dev_err(dev, "The DDP package file was not found or could not be read. Entering Safe Mode\n");
4471 /* request for firmware was successful. Download to device */
4472 ice_load_pkg(firmware, pf);
4473 release_firmware(firmware);
4477 * ice_print_wake_reason - show the wake up cause in the log
4478 * @pf: pointer to the PF struct
4480 static void ice_print_wake_reason(struct ice_pf *pf)
4482 u32 wus = pf->wakeup_reason;
4483 const char *wake_str;
4485 /* if no wake event, nothing to print */
4489 if (wus & PFPM_WUS_LNKC_M)
4490 wake_str = "Link\n";
4491 else if (wus & PFPM_WUS_MAG_M)
4492 wake_str = "Magic Packet\n";
4493 else if (wus & PFPM_WUS_MNG_M)
4494 wake_str = "Management\n";
4495 else if (wus & PFPM_WUS_FW_RST_WK_M)
4496 wake_str = "Firmware Reset\n";
4498 wake_str = "Unknown\n";
4500 dev_info(ice_pf_to_dev(pf), "Wake reason: %s", wake_str);
4504 * ice_register_netdev - register netdev and devlink port
4505 * @pf: pointer to the PF struct
4507 static int ice_register_netdev(struct ice_pf *pf)
4509 struct ice_vsi *vsi;
4512 vsi = ice_get_main_vsi(pf);
4513 if (!vsi || !vsi->netdev)
4516 err = register_netdev(vsi->netdev);
4518 goto err_register_netdev;
4520 set_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
4521 netif_carrier_off(vsi->netdev);
4522 netif_tx_stop_all_queues(vsi->netdev);
4523 err = ice_devlink_create_pf_port(pf);
4525 goto err_devlink_create;
4527 devlink_port_type_eth_set(&pf->devlink_port, vsi->netdev);
4531 unregister_netdev(vsi->netdev);
4532 clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
4533 err_register_netdev:
4534 free_netdev(vsi->netdev);
4536 clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
4541 * ice_probe - Device initialization routine
4542 * @pdev: PCI device information struct
4543 * @ent: entry in ice_pci_tbl
4545 * Returns 0 on success, negative on failure
4548 ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
4550 struct device *dev = &pdev->dev;
4555 if (pdev->is_virtfn) {
4556 dev_err(dev, "can't probe a virtual function\n");
4560 /* this driver uses devres, see
4561 * Documentation/driver-api/driver-model/devres.rst
4563 err = pcim_enable_device(pdev);
4567 err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), dev_driver_string(dev));
4569 dev_err(dev, "BAR0 I/O map error %d\n", err);
4573 pf = ice_allocate_pf(dev);
4577 /* initialize Auxiliary index to invalid value */
4580 /* set up for high or low DMA */
4581 err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
4583 dev_err(dev, "DMA configuration failed: 0x%x\n", err);
4587 pci_enable_pcie_error_reporting(pdev);
4588 pci_set_master(pdev);
4591 pci_set_drvdata(pdev, pf);
4592 set_bit(ICE_DOWN, pf->state);
4593 /* Disable service task until DOWN bit is cleared */
4594 set_bit(ICE_SERVICE_DIS, pf->state);
4597 hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0];
4598 pci_save_state(pdev);
4601 hw->vendor_id = pdev->vendor;
4602 hw->device_id = pdev->device;
4603 pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
4604 hw->subsystem_vendor_id = pdev->subsystem_vendor;
4605 hw->subsystem_device_id = pdev->subsystem_device;
4606 hw->bus.device = PCI_SLOT(pdev->devfn);
4607 hw->bus.func = PCI_FUNC(pdev->devfn);
4608 ice_set_ctrlq_len(hw);
4610 pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M);
4612 #ifndef CONFIG_DYNAMIC_DEBUG
4614 hw->debug_mask = debug;
4617 err = ice_init_hw(hw);
4619 dev_err(dev, "ice_init_hw failed: %d\n", err);
4621 goto err_exit_unroll;
4624 ice_init_feature_support(pf);
4628 /* if ice_request_fw fails, ICE_FLAG_ADV_FEATURES bit won't be
4629 * set in pf->state, which will cause ice_is_safe_mode to return
4632 if (ice_is_safe_mode(pf)) {
4633 /* we already got function/device capabilities but these don't
4634 * reflect what the driver needs to do in safe mode. Instead of
4635 * adding conditional logic everywhere to ignore these
4636 * device/function capabilities, override them.
4638 ice_set_safe_mode_caps(hw);
4641 err = ice_init_pf(pf);
4643 dev_err(dev, "ice_init_pf failed: %d\n", err);
4644 goto err_init_pf_unroll;
4647 ice_devlink_init_regions(pf);
4649 pf->hw.udp_tunnel_nic.set_port = ice_udp_tunnel_set_port;
4650 pf->hw.udp_tunnel_nic.unset_port = ice_udp_tunnel_unset_port;
4651 pf->hw.udp_tunnel_nic.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP;
4652 pf->hw.udp_tunnel_nic.shared = &pf->hw.udp_tunnel_shared;
4654 if (pf->hw.tnl.valid_count[TNL_VXLAN]) {
4655 pf->hw.udp_tunnel_nic.tables[i].n_entries =
4656 pf->hw.tnl.valid_count[TNL_VXLAN];
4657 pf->hw.udp_tunnel_nic.tables[i].tunnel_types =
4658 UDP_TUNNEL_TYPE_VXLAN;
4661 if (pf->hw.tnl.valid_count[TNL_GENEVE]) {
4662 pf->hw.udp_tunnel_nic.tables[i].n_entries =
4663 pf->hw.tnl.valid_count[TNL_GENEVE];
4664 pf->hw.udp_tunnel_nic.tables[i].tunnel_types =
4665 UDP_TUNNEL_TYPE_GENEVE;
4669 pf->num_alloc_vsi = hw->func_caps.guar_num_vsi;
4670 if (!pf->num_alloc_vsi) {
4672 goto err_init_pf_unroll;
4674 if (pf->num_alloc_vsi > UDP_TUNNEL_NIC_MAX_SHARING_DEVICES) {
4675 dev_warn(&pf->pdev->dev,
4676 "limiting the VSI count due to UDP tunnel limitation %d > %d\n",
4677 pf->num_alloc_vsi, UDP_TUNNEL_NIC_MAX_SHARING_DEVICES);
4678 pf->num_alloc_vsi = UDP_TUNNEL_NIC_MAX_SHARING_DEVICES;
4681 pf->vsi = devm_kcalloc(dev, pf->num_alloc_vsi, sizeof(*pf->vsi),
4685 goto err_init_pf_unroll;
4688 err = ice_init_interrupt_scheme(pf);
4690 dev_err(dev, "ice_init_interrupt_scheme failed: %d\n", err);
4692 goto err_init_vsi_unroll;
4695 /* In case of MSIX we are going to setup the misc vector right here
4696 * to handle admin queue events etc. In case of legacy and MSI
4697 * the misc functionality and queue processing is combined in
4698 * the same vector and that gets setup at open.
4700 err = ice_req_irq_msix_misc(pf);
4702 dev_err(dev, "setup of misc vector failed: %d\n", err);
4703 goto err_init_interrupt_unroll;
4706 /* create switch struct for the switch element created by FW on boot */
4707 pf->first_sw = devm_kzalloc(dev, sizeof(*pf->first_sw), GFP_KERNEL);
4708 if (!pf->first_sw) {
4710 goto err_msix_misc_unroll;
4714 pf->first_sw->bridge_mode = BRIDGE_MODE_VEB;
4716 pf->first_sw->bridge_mode = BRIDGE_MODE_VEPA;
4718 pf->first_sw->pf = pf;
4720 /* record the sw_id available for later use */
4721 pf->first_sw->sw_id = hw->port_info->sw_id;
4723 err = ice_setup_pf_sw(pf);
4725 dev_err(dev, "probe failed due to setup PF switch: %d\n", err);
4726 goto err_alloc_sw_unroll;
4729 clear_bit(ICE_SERVICE_DIS, pf->state);
4731 /* tell the firmware we are up */
4732 err = ice_send_version(pf);
4734 dev_err(dev, "probe failed sending driver version %s. error: %d\n",
4736 goto err_send_version_unroll;
4739 /* since everything is good, start the service timer */
4740 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
4742 err = ice_init_link_events(pf->hw.port_info);
4744 dev_err(dev, "ice_init_link_events failed: %d\n", err);
4745 goto err_send_version_unroll;
4748 /* not a fatal error if this fails */
4749 err = ice_init_nvm_phy_type(pf->hw.port_info);
4751 dev_err(dev, "ice_init_nvm_phy_type failed: %d\n", err);
4753 /* not a fatal error if this fails */
4754 err = ice_update_link_info(pf->hw.port_info);
4756 dev_err(dev, "ice_update_link_info failed: %d\n", err);
4758 ice_init_link_dflt_override(pf->hw.port_info);
4760 ice_check_link_cfg_err(pf,
4761 pf->hw.port_info->phy.link_info.link_cfg_err);
4763 /* if media available, initialize PHY settings */
4764 if (pf->hw.port_info->phy.link_info.link_info &
4765 ICE_AQ_MEDIA_AVAILABLE) {
4766 /* not a fatal error if this fails */
4767 err = ice_init_phy_user_cfg(pf->hw.port_info);
4769 dev_err(dev, "ice_init_phy_user_cfg failed: %d\n", err);
4771 if (!test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags)) {
4772 struct ice_vsi *vsi = ice_get_main_vsi(pf);
4775 ice_configure_phy(vsi);
4778 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);
4781 ice_verify_cacheline_size(pf);
4783 /* Save wakeup reason register for later use */
4784 pf->wakeup_reason = rd32(hw, PFPM_WUS);
4786 /* check for a power management event */
4787 ice_print_wake_reason(pf);
4789 /* clear wake status, all bits */
4790 wr32(hw, PFPM_WUS, U32_MAX);
4792 /* Disable WoL at init, wait for user to enable */
4793 device_set_wakeup_enable(dev, false);
4795 if (ice_is_safe_mode(pf)) {
4796 ice_set_safe_mode_vlan_cfg(pf);
4800 /* initialize DDP driven features */
4801 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
4804 if (ice_is_feature_supported(pf, ICE_F_GNSS))
4807 /* Note: Flow director init failure is non-fatal to load */
4808 if (ice_init_fdir(pf))
4809 dev_err(dev, "could not initialize flow director\n");
4811 /* Note: DCB init failure is non-fatal to load */
4812 if (ice_init_pf_dcb(pf, false)) {
4813 clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
4814 clear_bit(ICE_FLAG_DCB_ENA, pf->flags);
4816 ice_cfg_lldp_mib_change(&pf->hw, true);
4819 if (ice_init_lag(pf))
4820 dev_warn(dev, "Failed to init link aggregation support\n");
4822 /* print PCI link speed and width */
4823 pcie_print_link_status(pf->pdev);
4826 err = ice_register_netdev(pf);
4828 goto err_netdev_reg;
4830 err = ice_devlink_register_params(pf);
4832 goto err_netdev_reg;
4834 /* ready to go, so clear down state bit */
4835 clear_bit(ICE_DOWN, pf->state);
4836 if (ice_is_rdma_ena(pf)) {
4837 pf->aux_idx = ida_alloc(&ice_aux_ida, GFP_KERNEL);
4838 if (pf->aux_idx < 0) {
4839 dev_err(dev, "Failed to allocate device ID for AUX driver\n");
4841 goto err_devlink_reg_param;
4844 err = ice_init_rdma(pf);
4846 dev_err(dev, "Failed to initialize RDMA: %d\n", err);
4848 goto err_init_aux_unroll;
4851 dev_warn(dev, "RDMA is not supported on this device\n");
4854 ice_devlink_register(pf);
4857 err_init_aux_unroll:
4859 ida_free(&ice_aux_ida, pf->aux_idx);
4860 err_devlink_reg_param:
4861 ice_devlink_unregister_params(pf);
4863 err_send_version_unroll:
4864 ice_vsi_release_all(pf);
4865 err_alloc_sw_unroll:
4866 set_bit(ICE_SERVICE_DIS, pf->state);
4867 set_bit(ICE_DOWN, pf->state);
4868 devm_kfree(dev, pf->first_sw);
4869 err_msix_misc_unroll:
4870 ice_free_irq_msix_misc(pf);
4871 err_init_interrupt_unroll:
4872 ice_clear_interrupt_scheme(pf);
4873 err_init_vsi_unroll:
4874 devm_kfree(dev, pf->vsi);
4877 ice_devlink_destroy_regions(pf);
4880 pci_disable_pcie_error_reporting(pdev);
4881 pci_disable_device(pdev);
4886 * ice_set_wake - enable or disable Wake on LAN
4887 * @pf: pointer to the PF struct
4889 * Simple helper for WoL control
4891 static void ice_set_wake(struct ice_pf *pf)
4893 struct ice_hw *hw = &pf->hw;
4894 bool wol = pf->wol_ena;
4896 /* clear wake state, otherwise new wake events won't fire */
4897 wr32(hw, PFPM_WUS, U32_MAX);
4899 /* enable / disable APM wake up, no RMW needed */
4900 wr32(hw, PFPM_APM, wol ? PFPM_APM_APME_M : 0);
4902 /* set magic packet filter enabled */
4903 wr32(hw, PFPM_WUFC, wol ? PFPM_WUFC_MAG_M : 0);
4907 * ice_setup_mc_magic_wake - setup device to wake on multicast magic packet
4908 * @pf: pointer to the PF struct
4910 * Issue firmware command to enable multicast magic wake, making
4911 * sure that any locally administered address (LAA) is used for
4912 * wake, and that PF reset doesn't undo the LAA.
4914 static void ice_setup_mc_magic_wake(struct ice_pf *pf)
4916 struct device *dev = ice_pf_to_dev(pf);
4917 struct ice_hw *hw = &pf->hw;
4918 u8 mac_addr[ETH_ALEN];
4919 struct ice_vsi *vsi;
4926 vsi = ice_get_main_vsi(pf);
4930 /* Get current MAC address in case it's an LAA */
4932 ether_addr_copy(mac_addr, vsi->netdev->dev_addr);
4934 ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr);
4936 flags = ICE_AQC_MAN_MAC_WR_MC_MAG_EN |
4937 ICE_AQC_MAN_MAC_UPDATE_LAA_WOL |
4938 ICE_AQC_MAN_MAC_WR_WOL_LAA_PFR_KEEP;
4940 status = ice_aq_manage_mac_write(hw, mac_addr, flags, NULL);
4942 dev_err(dev, "Failed to enable Multicast Magic Packet wake, err %d aq_err %s\n",
4943 status, ice_aq_str(hw->adminq.sq_last_status));
4947 * ice_remove - Device removal routine
4948 * @pdev: PCI device information struct
4950 static void ice_remove(struct pci_dev *pdev)
4952 struct ice_pf *pf = pci_get_drvdata(pdev);
4955 ice_devlink_unregister(pf);
4956 for (i = 0; i < ICE_MAX_RESET_WAIT; i++) {
4957 if (!ice_is_reset_in_progress(pf->state))
4962 ice_tc_indir_block_remove(pf);
4964 if (test_bit(ICE_FLAG_SRIOV_ENA, pf->flags)) {
4965 set_bit(ICE_VF_RESETS_DISABLED, pf->state);
4969 ice_service_task_stop(pf);
4971 ice_aq_cancel_waiting_tasks(pf);
4972 ice_unplug_aux_dev(pf);
4973 if (pf->aux_idx >= 0)
4974 ida_free(&ice_aux_ida, pf->aux_idx);
4975 ice_devlink_unregister_params(pf);
4976 set_bit(ICE_DOWN, pf->state);
4979 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
4980 ice_ptp_release(pf);
4981 if (ice_is_feature_supported(pf, ICE_F_GNSS))
4983 if (!ice_is_safe_mode(pf))
4984 ice_remove_arfs(pf);
4985 ice_setup_mc_magic_wake(pf);
4986 ice_vsi_release_all(pf);
4987 mutex_destroy(&(&pf->hw)->fdir_fltr_lock);
4989 ice_free_irq_msix_misc(pf);
4990 ice_for_each_vsi(pf, i) {
4993 ice_vsi_free_q_vectors(pf->vsi[i]);
4996 ice_devlink_destroy_regions(pf);
4997 ice_deinit_hw(&pf->hw);
4999 /* Issue a PFR as part of the prescribed driver unload flow. Do not
5000 * do it via ice_schedule_reset() since there is no need to rebuild
5001 * and the service task is already stopped.
5003 ice_reset(&pf->hw, ICE_RESET_PFR);
5004 pci_wait_for_pending_transaction(pdev);
5005 ice_clear_interrupt_scheme(pf);
5006 pci_disable_pcie_error_reporting(pdev);
5007 pci_disable_device(pdev);
5011 * ice_shutdown - PCI callback for shutting down device
5012 * @pdev: PCI device information struct
5014 static void ice_shutdown(struct pci_dev *pdev)
5016 struct ice_pf *pf = pci_get_drvdata(pdev);
5020 if (system_state == SYSTEM_POWER_OFF) {
5021 pci_wake_from_d3(pdev, pf->wol_ena);
5022 pci_set_power_state(pdev, PCI_D3hot);
5028 * ice_prepare_for_shutdown - prep for PCI shutdown
5029 * @pf: board private structure
5031 * Inform or close all dependent features in prep for PCI device shutdown
5033 static void ice_prepare_for_shutdown(struct ice_pf *pf)
5035 struct ice_hw *hw = &pf->hw;
5038 /* Notify VFs of impending reset */
5039 if (ice_check_sq_alive(hw, &hw->mailboxq))
5040 ice_vc_notify_reset(pf);
5042 dev_dbg(ice_pf_to_dev(pf), "Tearing down internal switch for shutdown\n");
5044 /* disable the VSIs and their queues that are not already DOWN */
5045 ice_pf_dis_all_vsi(pf, false);
5047 ice_for_each_vsi(pf, v)
5049 pf->vsi[v]->vsi_num = 0;
5051 ice_shutdown_all_ctrlq(hw);
5055 * ice_reinit_interrupt_scheme - Reinitialize interrupt scheme
5056 * @pf: board private structure to reinitialize
5058 * This routine reinitialize interrupt scheme that was cleared during
5059 * power management suspend callback.
5061 * This should be called during resume routine to re-allocate the q_vectors
5062 * and reacquire interrupts.
5064 static int ice_reinit_interrupt_scheme(struct ice_pf *pf)
5066 struct device *dev = ice_pf_to_dev(pf);
5069 /* Since we clear MSIX flag during suspend, we need to
5070 * set it back during resume...
5073 ret = ice_init_interrupt_scheme(pf);
5075 dev_err(dev, "Failed to re-initialize interrupt %d\n", ret);
5079 /* Remap vectors and rings, after successful re-init interrupts */
5080 ice_for_each_vsi(pf, v) {
5084 ret = ice_vsi_alloc_q_vectors(pf->vsi[v]);
5087 ice_vsi_map_rings_to_vectors(pf->vsi[v]);
5090 ret = ice_req_irq_msix_misc(pf);
5092 dev_err(dev, "Setting up misc vector failed after device suspend %d\n",
5102 ice_vsi_free_q_vectors(pf->vsi[v]);
5109 * @dev: generic device information structure
5111 * Power Management callback to quiesce the device and prepare
5112 * for D3 transition.
5114 static int __maybe_unused ice_suspend(struct device *dev)
5116 struct pci_dev *pdev = to_pci_dev(dev);
5120 pf = pci_get_drvdata(pdev);
5122 if (!ice_pf_state_is_nominal(pf)) {
5123 dev_err(dev, "Device is not ready, no need to suspend it\n");
5127 /* Stop watchdog tasks until resume completion.
5128 * Even though it is most likely that the service task is
5129 * disabled if the device is suspended or down, the service task's
5130 * state is controlled by a different state bit, and we should
5131 * store and honor whatever state that bit is in at this point.
5133 disabled = ice_service_task_stop(pf);
5135 ice_unplug_aux_dev(pf);
5137 /* Already suspended?, then there is nothing to do */
5138 if (test_and_set_bit(ICE_SUSPENDED, pf->state)) {
5140 ice_service_task_restart(pf);
5144 if (test_bit(ICE_DOWN, pf->state) ||
5145 ice_is_reset_in_progress(pf->state)) {
5146 dev_err(dev, "can't suspend device in reset or already down\n");
5148 ice_service_task_restart(pf);
5152 ice_setup_mc_magic_wake(pf);
5154 ice_prepare_for_shutdown(pf);
5158 /* Free vectors, clear the interrupt scheme and release IRQs
5159 * for proper hibernation, especially with large number of CPUs.
5160 * Otherwise hibernation might fail when mapping all the vectors back
5163 ice_free_irq_msix_misc(pf);
5164 ice_for_each_vsi(pf, v) {
5167 ice_vsi_free_q_vectors(pf->vsi[v]);
5169 ice_clear_interrupt_scheme(pf);
5171 pci_save_state(pdev);
5172 pci_wake_from_d3(pdev, pf->wol_ena);
5173 pci_set_power_state(pdev, PCI_D3hot);
5178 * ice_resume - PM callback for waking up from D3
5179 * @dev: generic device information structure
5181 static int __maybe_unused ice_resume(struct device *dev)
5183 struct pci_dev *pdev = to_pci_dev(dev);
5184 enum ice_reset_req reset_type;
5189 pci_set_power_state(pdev, PCI_D0);
5190 pci_restore_state(pdev);
5191 pci_save_state(pdev);
5193 if (!pci_device_is_present(pdev))
5196 ret = pci_enable_device_mem(pdev);
5198 dev_err(dev, "Cannot enable device after suspend\n");
5202 pf = pci_get_drvdata(pdev);
5205 pf->wakeup_reason = rd32(hw, PFPM_WUS);
5206 ice_print_wake_reason(pf);
5208 /* We cleared the interrupt scheme when we suspended, so we need to
5209 * restore it now to resume device functionality.
5211 ret = ice_reinit_interrupt_scheme(pf);
5213 dev_err(dev, "Cannot restore interrupt scheme: %d\n", ret);
5215 clear_bit(ICE_DOWN, pf->state);
5216 /* Now perform PF reset and rebuild */
5217 reset_type = ICE_RESET_PFR;
5218 /* re-enable service task for reset, but allow reset to schedule it */
5219 clear_bit(ICE_SERVICE_DIS, pf->state);
5221 if (ice_schedule_reset(pf, reset_type))
5222 dev_err(dev, "Reset during resume failed.\n");
5224 clear_bit(ICE_SUSPENDED, pf->state);
5225 ice_service_task_restart(pf);
5227 /* Restart the service task */
5228 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
5232 #endif /* CONFIG_PM */
5235 * ice_pci_err_detected - warning that PCI error has been detected
5236 * @pdev: PCI device information struct
5237 * @err: the type of PCI error
5239 * Called to warn that something happened on the PCI bus and the error handling
5240 * is in progress. Allows the driver to gracefully prepare/handle PCI errors.
5242 static pci_ers_result_t
5243 ice_pci_err_detected(struct pci_dev *pdev, pci_channel_state_t err)
5245 struct ice_pf *pf = pci_get_drvdata(pdev);
5248 dev_err(&pdev->dev, "%s: unrecoverable device error %d\n",
5250 return PCI_ERS_RESULT_DISCONNECT;
5253 if (!test_bit(ICE_SUSPENDED, pf->state)) {
5254 ice_service_task_stop(pf);
5256 if (!test_bit(ICE_PREPARED_FOR_RESET, pf->state)) {
5257 set_bit(ICE_PFR_REQ, pf->state);
5258 ice_prepare_for_reset(pf, ICE_RESET_PFR);
5262 return PCI_ERS_RESULT_NEED_RESET;
5266 * ice_pci_err_slot_reset - a PCI slot reset has just happened
5267 * @pdev: PCI device information struct
5269 * Called to determine if the driver can recover from the PCI slot reset by
5270 * using a register read to determine if the device is recoverable.
5272 static pci_ers_result_t ice_pci_err_slot_reset(struct pci_dev *pdev)
5274 struct ice_pf *pf = pci_get_drvdata(pdev);
5275 pci_ers_result_t result;
5279 err = pci_enable_device_mem(pdev);
5281 dev_err(&pdev->dev, "Cannot re-enable PCI device after reset, error %d\n",
5283 result = PCI_ERS_RESULT_DISCONNECT;
5285 pci_set_master(pdev);
5286 pci_restore_state(pdev);
5287 pci_save_state(pdev);
5288 pci_wake_from_d3(pdev, false);
5290 /* Check for life */
5291 reg = rd32(&pf->hw, GLGEN_RTRIG);
5293 result = PCI_ERS_RESULT_RECOVERED;
5295 result = PCI_ERS_RESULT_DISCONNECT;
5298 err = pci_aer_clear_nonfatal_status(pdev);
5300 dev_dbg(&pdev->dev, "pci_aer_clear_nonfatal_status() failed, error %d\n",
5302 /* non-fatal, continue */
5308 * ice_pci_err_resume - restart operations after PCI error recovery
5309 * @pdev: PCI device information struct
5311 * Called to allow the driver to bring things back up after PCI error and/or
5312 * reset recovery have finished
5314 static void ice_pci_err_resume(struct pci_dev *pdev)
5316 struct ice_pf *pf = pci_get_drvdata(pdev);
5319 dev_err(&pdev->dev, "%s failed, device is unrecoverable\n",
5324 if (test_bit(ICE_SUSPENDED, pf->state)) {
5325 dev_dbg(&pdev->dev, "%s failed to resume normal operations!\n",
5330 ice_restore_all_vfs_msi_state(pdev);
5332 ice_do_reset(pf, ICE_RESET_PFR);
5333 ice_service_task_restart(pf);
5334 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
5338 * ice_pci_err_reset_prepare - prepare device driver for PCI reset
5339 * @pdev: PCI device information struct
5341 static void ice_pci_err_reset_prepare(struct pci_dev *pdev)
5343 struct ice_pf *pf = pci_get_drvdata(pdev);
5345 if (!test_bit(ICE_SUSPENDED, pf->state)) {
5346 ice_service_task_stop(pf);
5348 if (!test_bit(ICE_PREPARED_FOR_RESET, pf->state)) {
5349 set_bit(ICE_PFR_REQ, pf->state);
5350 ice_prepare_for_reset(pf, ICE_RESET_PFR);
5356 * ice_pci_err_reset_done - PCI reset done, device driver reset can begin
5357 * @pdev: PCI device information struct
5359 static void ice_pci_err_reset_done(struct pci_dev *pdev)
5361 ice_pci_err_resume(pdev);
5364 /* ice_pci_tbl - PCI Device ID Table
5366 * Wildcard entries (PCI_ANY_ID) should come last
5367 * Last entry must be all 0s
5369 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
5370 * Class, Class Mask, private data (not used) }
5372 static const struct pci_device_id ice_pci_tbl[] = {
5373 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_BACKPLANE), 0 },
5374 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_QSFP), 0 },
5375 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_SFP), 0 },
5376 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_BACKPLANE), 0 },
5377 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_QSFP), 0 },
5378 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_SFP), 0 },
5379 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_BACKPLANE), 0 },
5380 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_QSFP), 0 },
5381 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_SFP), 0 },
5382 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_10G_BASE_T), 0 },
5383 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_SGMII), 0 },
5384 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_BACKPLANE), 0 },
5385 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_QSFP), 0 },
5386 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SFP), 0 },
5387 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_10G_BASE_T), 0 },
5388 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SGMII), 0 },
5389 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_BACKPLANE), 0 },
5390 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SFP), 0 },
5391 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_10G_BASE_T), 0 },
5392 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SGMII), 0 },
5393 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_BACKPLANE), 0 },
5394 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_SFP), 0 },
5395 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_10G_BASE_T), 0 },
5396 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_1GBE), 0 },
5397 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_QSFP), 0 },
5398 /* required last entry */
5401 MODULE_DEVICE_TABLE(pci, ice_pci_tbl);
5403 static __maybe_unused SIMPLE_DEV_PM_OPS(ice_pm_ops, ice_suspend, ice_resume);
5405 static const struct pci_error_handlers ice_pci_err_handler = {
5406 .error_detected = ice_pci_err_detected,
5407 .slot_reset = ice_pci_err_slot_reset,
5408 .reset_prepare = ice_pci_err_reset_prepare,
5409 .reset_done = ice_pci_err_reset_done,
5410 .resume = ice_pci_err_resume
5413 static struct pci_driver ice_driver = {
5414 .name = KBUILD_MODNAME,
5415 .id_table = ice_pci_tbl,
5417 .remove = ice_remove,
5419 .driver.pm = &ice_pm_ops,
5420 #endif /* CONFIG_PM */
5421 .shutdown = ice_shutdown,
5422 .sriov_configure = ice_sriov_configure,
5423 .err_handler = &ice_pci_err_handler
5427 * ice_module_init - Driver registration routine
5429 * ice_module_init is the first routine called when the driver is
5430 * loaded. All it does is register with the PCI subsystem.
5432 static int __init ice_module_init(void)
5436 pr_info("%s\n", ice_driver_string);
5437 pr_info("%s\n", ice_copyright);
5439 ice_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, KBUILD_MODNAME);
5441 pr_err("Failed to create workqueue\n");
5445 status = pci_register_driver(&ice_driver);
5447 pr_err("failed to register PCI driver, err %d\n", status);
5448 destroy_workqueue(ice_wq);
5453 module_init(ice_module_init);
5456 * ice_module_exit - Driver exit cleanup routine
5458 * ice_module_exit is called just before the driver is removed
5461 static void __exit ice_module_exit(void)
5463 pci_unregister_driver(&ice_driver);
5464 destroy_workqueue(ice_wq);
5465 pr_info("module unloaded\n");
5467 module_exit(ice_module_exit);
5470 * ice_set_mac_address - NDO callback to set MAC address
5471 * @netdev: network interface device structure
5472 * @pi: pointer to an address structure
5474 * Returns 0 on success, negative on failure
5476 static int ice_set_mac_address(struct net_device *netdev, void *pi)
5478 struct ice_netdev_priv *np = netdev_priv(netdev);
5479 struct ice_vsi *vsi = np->vsi;
5480 struct ice_pf *pf = vsi->back;
5481 struct ice_hw *hw = &pf->hw;
5482 struct sockaddr *addr = pi;
5483 u8 old_mac[ETH_ALEN];
5488 mac = (u8 *)addr->sa_data;
5490 if (!is_valid_ether_addr(mac))
5491 return -EADDRNOTAVAIL;
5493 if (ether_addr_equal(netdev->dev_addr, mac)) {
5494 netdev_dbg(netdev, "already using mac %pM\n", mac);
5498 if (test_bit(ICE_DOWN, pf->state) ||
5499 ice_is_reset_in_progress(pf->state)) {
5500 netdev_err(netdev, "can't set mac %pM. device not ready\n",
5505 if (ice_chnl_dmac_fltr_cnt(pf)) {
5506 netdev_err(netdev, "can't set mac %pM. Device has tc-flower filters, delete all of them and try again\n",
5511 netif_addr_lock_bh(netdev);
5512 ether_addr_copy(old_mac, netdev->dev_addr);
5513 /* change the netdev's MAC address */
5514 eth_hw_addr_set(netdev, mac);
5515 netif_addr_unlock_bh(netdev);
5517 /* Clean up old MAC filter. Not an error if old filter doesn't exist */
5518 err = ice_fltr_remove_mac(vsi, old_mac, ICE_FWD_TO_VSI);
5519 if (err && err != -ENOENT) {
5520 err = -EADDRNOTAVAIL;
5521 goto err_update_filters;
5524 /* Add filter for new MAC. If filter exists, return success */
5525 err = ice_fltr_add_mac(vsi, mac, ICE_FWD_TO_VSI);
5526 if (err == -EEXIST) {
5527 /* Although this MAC filter is already present in hardware it's
5528 * possible in some cases (e.g. bonding) that dev_addr was
5529 * modified outside of the driver and needs to be restored back
5532 netdev_dbg(netdev, "filter for MAC %pM already exists\n", mac);
5536 /* error if the new filter addition failed */
5537 err = -EADDRNOTAVAIL;
5542 netdev_err(netdev, "can't set MAC %pM. filter update failed\n",
5544 netif_addr_lock_bh(netdev);
5545 eth_hw_addr_set(netdev, old_mac);
5546 netif_addr_unlock_bh(netdev);
5550 netdev_dbg(vsi->netdev, "updated MAC address to %pM\n",
5553 /* write new MAC address to the firmware */
5554 flags = ICE_AQC_MAN_MAC_UPDATE_LAA_WOL;
5555 err = ice_aq_manage_mac_write(hw, mac, flags, NULL);
5557 netdev_err(netdev, "can't set MAC %pM. write to firmware failed error %d\n",
5564 * ice_set_rx_mode - NDO callback to set the netdev filters
5565 * @netdev: network interface device structure
5567 static void ice_set_rx_mode(struct net_device *netdev)
5569 struct ice_netdev_priv *np = netdev_priv(netdev);
5570 struct ice_vsi *vsi = np->vsi;
5575 /* Set the flags to synchronize filters
5576 * ndo_set_rx_mode may be triggered even without a change in netdev
5579 set_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);
5580 set_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);
5581 set_bit(ICE_FLAG_FLTR_SYNC, vsi->back->flags);
5583 /* schedule our worker thread which will take care of
5584 * applying the new filter changes
5586 ice_service_task_schedule(vsi->back);
5590 * ice_set_tx_maxrate - NDO callback to set the maximum per-queue bitrate
5591 * @netdev: network interface device structure
5592 * @queue_index: Queue ID
5593 * @maxrate: maximum bandwidth in Mbps
5596 ice_set_tx_maxrate(struct net_device *netdev, int queue_index, u32 maxrate)
5598 struct ice_netdev_priv *np = netdev_priv(netdev);
5599 struct ice_vsi *vsi = np->vsi;
5604 /* Validate maxrate requested is within permitted range */
5605 if (maxrate && (maxrate > (ICE_SCHED_MAX_BW / 1000))) {
5606 netdev_err(netdev, "Invalid max rate %d specified for the queue %d\n",
5607 maxrate, queue_index);
5611 q_handle = vsi->tx_rings[queue_index]->q_handle;
5612 tc = ice_dcb_get_tc(vsi, queue_index);
5614 /* Set BW back to default, when user set maxrate to 0 */
5616 status = ice_cfg_q_bw_dflt_lmt(vsi->port_info, vsi->idx, tc,
5617 q_handle, ICE_MAX_BW);
5619 status = ice_cfg_q_bw_lmt(vsi->port_info, vsi->idx, tc,
5620 q_handle, ICE_MAX_BW, maxrate * 1000);
5622 netdev_err(netdev, "Unable to set Tx max rate, error %d\n",
5629 * ice_fdb_add - add an entry to the hardware database
5630 * @ndm: the input from the stack
5631 * @tb: pointer to array of nladdr (unused)
5632 * @dev: the net device pointer
5633 * @addr: the MAC address entry being added
5635 * @flags: instructions from stack about fdb operation
5636 * @extack: netlink extended ack
5639 ice_fdb_add(struct ndmsg *ndm, struct nlattr __always_unused *tb[],
5640 struct net_device *dev, const unsigned char *addr, u16 vid,
5641 u16 flags, struct netlink_ext_ack __always_unused *extack)
5646 netdev_err(dev, "VLANs aren't supported yet for dev_uc|mc_add()\n");
5649 if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) {
5650 netdev_err(dev, "FDB only supports static addresses\n");
5654 if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
5655 err = dev_uc_add_excl(dev, addr);
5656 else if (is_multicast_ether_addr(addr))
5657 err = dev_mc_add_excl(dev, addr);
5661 /* Only return duplicate errors if NLM_F_EXCL is set */
5662 if (err == -EEXIST && !(flags & NLM_F_EXCL))
5669 * ice_fdb_del - delete an entry from the hardware database
5670 * @ndm: the input from the stack
5671 * @tb: pointer to array of nladdr (unused)
5672 * @dev: the net device pointer
5673 * @addr: the MAC address entry being added
5677 ice_fdb_del(struct ndmsg *ndm, __always_unused struct nlattr *tb[],
5678 struct net_device *dev, const unsigned char *addr,
5679 __always_unused u16 vid)
5683 if (ndm->ndm_state & NUD_PERMANENT) {
5684 netdev_err(dev, "FDB only supports static addresses\n");
5688 if (is_unicast_ether_addr(addr))
5689 err = dev_uc_del(dev, addr);
5690 else if (is_multicast_ether_addr(addr))
5691 err = dev_mc_del(dev, addr);
5698 #define NETIF_VLAN_OFFLOAD_FEATURES (NETIF_F_HW_VLAN_CTAG_RX | \
5699 NETIF_F_HW_VLAN_CTAG_TX | \
5700 NETIF_F_HW_VLAN_STAG_RX | \
5701 NETIF_F_HW_VLAN_STAG_TX)
5703 #define NETIF_VLAN_FILTERING_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
5704 NETIF_F_HW_VLAN_STAG_FILTER)
5707 * ice_fix_features - fix the netdev features flags based on device limitations
5708 * @netdev: ptr to the netdev that flags are being fixed on
5709 * @features: features that need to be checked and possibly fixed
5711 * Make sure any fixups are made to features in this callback. This enables the
5712 * driver to not have to check unsupported configurations throughout the driver
5713 * because that's the responsiblity of this callback.
5715 * Single VLAN Mode (SVM) Supported Features:
5716 * NETIF_F_HW_VLAN_CTAG_FILTER
5717 * NETIF_F_HW_VLAN_CTAG_RX
5718 * NETIF_F_HW_VLAN_CTAG_TX
5720 * Double VLAN Mode (DVM) Supported Features:
5721 * NETIF_F_HW_VLAN_CTAG_FILTER
5722 * NETIF_F_HW_VLAN_CTAG_RX
5723 * NETIF_F_HW_VLAN_CTAG_TX
5725 * NETIF_F_HW_VLAN_STAG_FILTER
5726 * NETIF_HW_VLAN_STAG_RX
5727 * NETIF_HW_VLAN_STAG_TX
5729 * Features that need fixing:
5730 * Cannot simultaneously enable CTAG and STAG stripping and/or insertion.
5731 * These are mutually exlusive as the VSI context cannot support multiple
5732 * VLAN ethertypes simultaneously for stripping and/or insertion. If this
5733 * is not done, then default to clearing the requested STAG offload
5736 * All supported filtering has to be enabled or disabled together. For
5737 * example, in DVM, CTAG and STAG filtering have to be enabled and disabled
5738 * together. If this is not done, then default to VLAN filtering disabled.
5739 * These are mutually exclusive as there is currently no way to
5740 * enable/disable VLAN filtering based on VLAN ethertype when using VLAN
5743 static netdev_features_t
5744 ice_fix_features(struct net_device *netdev, netdev_features_t features)
5746 struct ice_netdev_priv *np = netdev_priv(netdev);
5747 netdev_features_t supported_vlan_filtering;
5748 netdev_features_t requested_vlan_filtering;
5749 struct ice_vsi *vsi = np->vsi;
5751 requested_vlan_filtering = features & NETIF_VLAN_FILTERING_FEATURES;
5753 /* make sure supported_vlan_filtering works for both SVM and DVM */
5754 supported_vlan_filtering = NETIF_F_HW_VLAN_CTAG_FILTER;
5755 if (ice_is_dvm_ena(&vsi->back->hw))
5756 supported_vlan_filtering |= NETIF_F_HW_VLAN_STAG_FILTER;
5758 if (requested_vlan_filtering &&
5759 requested_vlan_filtering != supported_vlan_filtering) {
5760 if (requested_vlan_filtering & NETIF_F_HW_VLAN_CTAG_FILTER) {
5761 netdev_warn(netdev, "cannot support requested VLAN filtering settings, enabling all supported VLAN filtering settings\n");
5762 features |= supported_vlan_filtering;
5764 netdev_warn(netdev, "cannot support requested VLAN filtering settings, clearing all supported VLAN filtering settings\n");
5765 features &= ~supported_vlan_filtering;
5769 if ((features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX)) &&
5770 (features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX))) {
5771 netdev_warn(netdev, "cannot support CTAG and STAG VLAN stripping and/or insertion simultaneously since CTAG and STAG offloads are mutually exclusive, clearing STAG offload settings\n");
5772 features &= ~(NETIF_F_HW_VLAN_STAG_RX |
5773 NETIF_F_HW_VLAN_STAG_TX);
5780 * ice_set_vlan_offload_features - set VLAN offload features for the PF VSI
5782 * @features: features used to determine VLAN offload settings
5784 * First, determine the vlan_ethertype based on the VLAN offload bits in
5785 * features. Then determine if stripping and insertion should be enabled or
5786 * disabled. Finally enable or disable VLAN stripping and insertion.
5789 ice_set_vlan_offload_features(struct ice_vsi *vsi, netdev_features_t features)
5791 bool enable_stripping = true, enable_insertion = true;
5792 struct ice_vsi_vlan_ops *vlan_ops;
5793 int strip_err = 0, insert_err = 0;
5794 u16 vlan_ethertype = 0;
5796 vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
5798 if (features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX))
5799 vlan_ethertype = ETH_P_8021AD;
5800 else if (features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX))
5801 vlan_ethertype = ETH_P_8021Q;
5803 if (!(features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_CTAG_RX)))
5804 enable_stripping = false;
5805 if (!(features & (NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_CTAG_TX)))
5806 enable_insertion = false;
5808 if (enable_stripping)
5809 strip_err = vlan_ops->ena_stripping(vsi, vlan_ethertype);
5811 strip_err = vlan_ops->dis_stripping(vsi);
5813 if (enable_insertion)
5814 insert_err = vlan_ops->ena_insertion(vsi, vlan_ethertype);
5816 insert_err = vlan_ops->dis_insertion(vsi);
5818 if (strip_err || insert_err)
5825 * ice_set_vlan_filtering_features - set VLAN filtering features for the PF VSI
5827 * @features: features used to determine VLAN filtering settings
5829 * Enable or disable Rx VLAN filtering based on the VLAN filtering bits in the
5833 ice_set_vlan_filtering_features(struct ice_vsi *vsi, netdev_features_t features)
5835 struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
5838 /* support Single VLAN Mode (SVM) and Double VLAN Mode (DVM) by checking
5839 * if either bit is set
5842 (NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER))
5843 err = vlan_ops->ena_rx_filtering(vsi);
5845 err = vlan_ops->dis_rx_filtering(vsi);
5851 * ice_set_vlan_features - set VLAN settings based on suggested feature set
5852 * @netdev: ptr to the netdev being adjusted
5853 * @features: the feature set that the stack is suggesting
5855 * Only update VLAN settings if the requested_vlan_features are different than
5856 * the current_vlan_features.
5859 ice_set_vlan_features(struct net_device *netdev, netdev_features_t features)
5861 netdev_features_t current_vlan_features, requested_vlan_features;
5862 struct ice_netdev_priv *np = netdev_priv(netdev);
5863 struct ice_vsi *vsi = np->vsi;
5866 current_vlan_features = netdev->features & NETIF_VLAN_OFFLOAD_FEATURES;
5867 requested_vlan_features = features & NETIF_VLAN_OFFLOAD_FEATURES;
5868 if (current_vlan_features ^ requested_vlan_features) {
5869 err = ice_set_vlan_offload_features(vsi, features);
5874 current_vlan_features = netdev->features &
5875 NETIF_VLAN_FILTERING_FEATURES;
5876 requested_vlan_features = features & NETIF_VLAN_FILTERING_FEATURES;
5877 if (current_vlan_features ^ requested_vlan_features) {
5878 err = ice_set_vlan_filtering_features(vsi, features);
5887 * ice_set_features - set the netdev feature flags
5888 * @netdev: ptr to the netdev being adjusted
5889 * @features: the feature set that the stack is suggesting
5892 ice_set_features(struct net_device *netdev, netdev_features_t features)
5894 struct ice_netdev_priv *np = netdev_priv(netdev);
5895 struct ice_vsi *vsi = np->vsi;
5896 struct ice_pf *pf = vsi->back;
5899 /* Don't set any netdev advanced features with device in Safe Mode */
5900 if (ice_is_safe_mode(vsi->back)) {
5901 dev_err(ice_pf_to_dev(vsi->back), "Device is in Safe Mode - not enabling advanced netdev features\n");
5905 /* Do not change setting during reset */
5906 if (ice_is_reset_in_progress(pf->state)) {
5907 dev_err(ice_pf_to_dev(vsi->back), "Device is resetting, changing advanced netdev features temporarily unavailable.\n");
5911 /* Multiple features can be changed in one call so keep features in
5912 * separate if/else statements to guarantee each feature is checked
5914 if (features & NETIF_F_RXHASH && !(netdev->features & NETIF_F_RXHASH))
5915 ice_vsi_manage_rss_lut(vsi, true);
5916 else if (!(features & NETIF_F_RXHASH) &&
5917 netdev->features & NETIF_F_RXHASH)
5918 ice_vsi_manage_rss_lut(vsi, false);
5920 ret = ice_set_vlan_features(netdev, features);
5924 if ((features & NETIF_F_NTUPLE) &&
5925 !(netdev->features & NETIF_F_NTUPLE)) {
5926 ice_vsi_manage_fdir(vsi, true);
5928 } else if (!(features & NETIF_F_NTUPLE) &&
5929 (netdev->features & NETIF_F_NTUPLE)) {
5930 ice_vsi_manage_fdir(vsi, false);
5931 ice_clear_arfs(vsi);
5934 /* don't turn off hw_tc_offload when ADQ is already enabled */
5935 if (!(features & NETIF_F_HW_TC) && ice_is_adq_active(pf)) {
5936 dev_err(ice_pf_to_dev(pf), "ADQ is active, can't turn hw_tc_offload off\n");
5940 if ((features & NETIF_F_HW_TC) &&
5941 !(netdev->features & NETIF_F_HW_TC))
5942 set_bit(ICE_FLAG_CLS_FLOWER, pf->flags);
5944 clear_bit(ICE_FLAG_CLS_FLOWER, pf->flags);
5950 * ice_vsi_vlan_setup - Setup VLAN offload properties on a PF VSI
5951 * @vsi: VSI to setup VLAN properties for
5953 static int ice_vsi_vlan_setup(struct ice_vsi *vsi)
5957 err = ice_set_vlan_offload_features(vsi, vsi->netdev->features);
5961 err = ice_set_vlan_filtering_features(vsi, vsi->netdev->features);
5965 return ice_vsi_add_vlan_zero(vsi);
5969 * ice_vsi_cfg - Setup the VSI
5970 * @vsi: the VSI being configured
5972 * Return 0 on success and negative value on error
5974 int ice_vsi_cfg(struct ice_vsi *vsi)
5979 ice_set_rx_mode(vsi->netdev);
5981 err = ice_vsi_vlan_setup(vsi);
5986 ice_vsi_cfg_dcb_rings(vsi);
5988 err = ice_vsi_cfg_lan_txqs(vsi);
5989 if (!err && ice_is_xdp_ena_vsi(vsi))
5990 err = ice_vsi_cfg_xdp_txqs(vsi);
5992 err = ice_vsi_cfg_rxqs(vsi);
5997 /* THEORY OF MODERATION:
5998 * The ice driver hardware works differently than the hardware that DIMLIB was
5999 * originally made for. ice hardware doesn't have packet count limits that
6000 * can trigger an interrupt, but it *does* have interrupt rate limit support,
6001 * which is hard-coded to a limit of 250,000 ints/second.
6002 * If not using dynamic moderation, the INTRL value can be modified
6003 * by ethtool rx-usecs-high.
6006 /* the throttle rate for interrupts, basically worst case delay before
6007 * an initial interrupt fires, value is stored in microseconds.
6012 /* Make a different profile for Rx that doesn't allow quite so aggressive
6013 * moderation at the high end (it maxes out at 126us or about 8k interrupts a
6016 static const struct ice_dim rx_profile[] = {
6017 {2}, /* 500,000 ints/s, capped at 250K by INTRL */
6018 {8}, /* 125,000 ints/s */
6019 {16}, /* 62,500 ints/s */
6020 {62}, /* 16,129 ints/s */
6021 {126} /* 7,936 ints/s */
6024 /* The transmit profile, which has the same sorts of values
6025 * as the previous struct
6027 static const struct ice_dim tx_profile[] = {
6028 {2}, /* 500,000 ints/s, capped at 250K by INTRL */
6029 {8}, /* 125,000 ints/s */
6030 {40}, /* 16,125 ints/s */
6031 {128}, /* 7,812 ints/s */
6032 {256} /* 3,906 ints/s */
6035 static void ice_tx_dim_work(struct work_struct *work)
6037 struct ice_ring_container *rc;
6041 dim = container_of(work, struct dim, work);
6042 rc = (struct ice_ring_container *)dim->priv;
6044 WARN_ON(dim->profile_ix >= ARRAY_SIZE(tx_profile));
6046 /* look up the values in our local table */
6047 itr = tx_profile[dim->profile_ix].itr;
6049 ice_trace(tx_dim_work, container_of(rc, struct ice_q_vector, tx), dim);
6050 ice_write_itr(rc, itr);
6052 dim->state = DIM_START_MEASURE;
6055 static void ice_rx_dim_work(struct work_struct *work)
6057 struct ice_ring_container *rc;
6061 dim = container_of(work, struct dim, work);
6062 rc = (struct ice_ring_container *)dim->priv;
6064 WARN_ON(dim->profile_ix >= ARRAY_SIZE(rx_profile));
6066 /* look up the values in our local table */
6067 itr = rx_profile[dim->profile_ix].itr;
6069 ice_trace(rx_dim_work, container_of(rc, struct ice_q_vector, rx), dim);
6070 ice_write_itr(rc, itr);
6072 dim->state = DIM_START_MEASURE;
6075 #define ICE_DIM_DEFAULT_PROFILE_IX 1
6078 * ice_init_moderation - set up interrupt moderation
6079 * @q_vector: the vector containing rings to be configured
6081 * Set up interrupt moderation registers, with the intent to do the right thing
6082 * when called from reset or from probe, and whether or not dynamic moderation
6083 * is enabled or not. Take special care to write all the registers in both
6084 * dynamic moderation mode or not in order to make sure hardware is in a known
6087 static void ice_init_moderation(struct ice_q_vector *q_vector)
6089 struct ice_ring_container *rc;
6090 bool tx_dynamic, rx_dynamic;
6093 INIT_WORK(&rc->dim.work, ice_tx_dim_work);
6094 rc->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
6095 rc->dim.profile_ix = ICE_DIM_DEFAULT_PROFILE_IX;
6097 tx_dynamic = ITR_IS_DYNAMIC(rc);
6099 /* set the initial TX ITR to match the above */
6100 ice_write_itr(rc, tx_dynamic ?
6101 tx_profile[rc->dim.profile_ix].itr : rc->itr_setting);
6104 INIT_WORK(&rc->dim.work, ice_rx_dim_work);
6105 rc->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
6106 rc->dim.profile_ix = ICE_DIM_DEFAULT_PROFILE_IX;
6108 rx_dynamic = ITR_IS_DYNAMIC(rc);
6110 /* set the initial RX ITR to match the above */
6111 ice_write_itr(rc, rx_dynamic ? rx_profile[rc->dim.profile_ix].itr :
6114 ice_set_q_vector_intrl(q_vector);
6118 * ice_napi_enable_all - Enable NAPI for all q_vectors in the VSI
6119 * @vsi: the VSI being configured
6121 static void ice_napi_enable_all(struct ice_vsi *vsi)
6128 ice_for_each_q_vector(vsi, q_idx) {
6129 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];
6131 ice_init_moderation(q_vector);
6133 if (q_vector->rx.rx_ring || q_vector->tx.tx_ring)
6134 napi_enable(&q_vector->napi);
6139 * ice_up_complete - Finish the last steps of bringing up a connection
6140 * @vsi: The VSI being configured
6142 * Return 0 on success and negative value on error
6144 static int ice_up_complete(struct ice_vsi *vsi)
6146 struct ice_pf *pf = vsi->back;
6149 ice_vsi_cfg_msix(vsi);
6151 /* Enable only Rx rings, Tx rings were enabled by the FW when the
6152 * Tx queue group list was configured and the context bits were
6153 * programmed using ice_vsi_cfg_txqs
6155 err = ice_vsi_start_all_rx_rings(vsi);
6159 clear_bit(ICE_VSI_DOWN, vsi->state);
6160 ice_napi_enable_all(vsi);
6161 ice_vsi_ena_irq(vsi);
6163 if (vsi->port_info &&
6164 (vsi->port_info->phy.link_info.link_info & ICE_AQ_LINK_UP) &&
6166 ice_print_link_msg(vsi, true);
6167 netif_tx_start_all_queues(vsi->netdev);
6168 netif_carrier_on(vsi->netdev);
6169 if (!ice_is_e810(&pf->hw))
6170 ice_ptp_link_change(pf, pf->hw.pf_id, true);
6173 /* clear this now, and the first stats read will be used as baseline */
6174 vsi->stat_offsets_loaded = false;
6176 ice_service_task_schedule(pf);
6182 * ice_up - Bring the connection back up after being down
6183 * @vsi: VSI being configured
6185 int ice_up(struct ice_vsi *vsi)
6189 err = ice_vsi_cfg(vsi);
6191 err = ice_up_complete(vsi);
6197 * ice_fetch_u64_stats_per_ring - get packets and bytes stats per ring
6198 * @syncp: pointer to u64_stats_sync
6199 * @stats: stats that pkts and bytes count will be taken from
6200 * @pkts: packets stats counter
6201 * @bytes: bytes stats counter
6203 * This function fetches stats from the ring considering the atomic operations
6204 * that needs to be performed to read u64 values in 32 bit machine.
6207 ice_fetch_u64_stats_per_ring(struct u64_stats_sync *syncp,
6208 struct ice_q_stats stats, u64 *pkts, u64 *bytes)
6213 start = u64_stats_fetch_begin_irq(syncp);
6215 *bytes = stats.bytes;
6216 } while (u64_stats_fetch_retry_irq(syncp, start));
6220 * ice_update_vsi_tx_ring_stats - Update VSI Tx ring stats counters
6221 * @vsi: the VSI to be updated
6222 * @vsi_stats: the stats struct to be updated
6223 * @rings: rings to work on
6224 * @count: number of rings
6227 ice_update_vsi_tx_ring_stats(struct ice_vsi *vsi,
6228 struct rtnl_link_stats64 *vsi_stats,
6229 struct ice_tx_ring **rings, u16 count)
6233 for (i = 0; i < count; i++) {
6234 struct ice_tx_ring *ring;
6235 u64 pkts = 0, bytes = 0;
6237 ring = READ_ONCE(rings[i]);
6240 ice_fetch_u64_stats_per_ring(&ring->syncp, ring->stats, &pkts, &bytes);
6241 vsi_stats->tx_packets += pkts;
6242 vsi_stats->tx_bytes += bytes;
6243 vsi->tx_restart += ring->tx_stats.restart_q;
6244 vsi->tx_busy += ring->tx_stats.tx_busy;
6245 vsi->tx_linearize += ring->tx_stats.tx_linearize;
6250 * ice_update_vsi_ring_stats - Update VSI stats counters
6251 * @vsi: the VSI to be updated
6253 static void ice_update_vsi_ring_stats(struct ice_vsi *vsi)
6255 struct rtnl_link_stats64 *vsi_stats;
6259 vsi_stats = kzalloc(sizeof(*vsi_stats), GFP_ATOMIC);
6263 /* reset non-netdev (extended) stats */
6264 vsi->tx_restart = 0;
6266 vsi->tx_linearize = 0;
6267 vsi->rx_buf_failed = 0;
6268 vsi->rx_page_failed = 0;
6272 /* update Tx rings counters */
6273 ice_update_vsi_tx_ring_stats(vsi, vsi_stats, vsi->tx_rings,
6276 /* update Rx rings counters */
6277 ice_for_each_rxq(vsi, i) {
6278 struct ice_rx_ring *ring = READ_ONCE(vsi->rx_rings[i]);
6280 ice_fetch_u64_stats_per_ring(&ring->syncp, ring->stats, &pkts, &bytes);
6281 vsi_stats->rx_packets += pkts;
6282 vsi_stats->rx_bytes += bytes;
6283 vsi->rx_buf_failed += ring->rx_stats.alloc_buf_failed;
6284 vsi->rx_page_failed += ring->rx_stats.alloc_page_failed;
6287 /* update XDP Tx rings counters */
6288 if (ice_is_xdp_ena_vsi(vsi))
6289 ice_update_vsi_tx_ring_stats(vsi, vsi_stats, vsi->xdp_rings,
6294 vsi->net_stats.tx_packets = vsi_stats->tx_packets;
6295 vsi->net_stats.tx_bytes = vsi_stats->tx_bytes;
6296 vsi->net_stats.rx_packets = vsi_stats->rx_packets;
6297 vsi->net_stats.rx_bytes = vsi_stats->rx_bytes;
6303 * ice_update_vsi_stats - Update VSI stats counters
6304 * @vsi: the VSI to be updated
6306 void ice_update_vsi_stats(struct ice_vsi *vsi)
6308 struct rtnl_link_stats64 *cur_ns = &vsi->net_stats;
6309 struct ice_eth_stats *cur_es = &vsi->eth_stats;
6310 struct ice_pf *pf = vsi->back;
6312 if (test_bit(ICE_VSI_DOWN, vsi->state) ||
6313 test_bit(ICE_CFG_BUSY, pf->state))
6316 /* get stats as recorded by Tx/Rx rings */
6317 ice_update_vsi_ring_stats(vsi);
6319 /* get VSI stats as recorded by the hardware */
6320 ice_update_eth_stats(vsi);
6322 cur_ns->tx_errors = cur_es->tx_errors;
6323 cur_ns->rx_dropped = cur_es->rx_discards;
6324 cur_ns->tx_dropped = cur_es->tx_discards;
6325 cur_ns->multicast = cur_es->rx_multicast;
6327 /* update some more netdev stats if this is main VSI */
6328 if (vsi->type == ICE_VSI_PF) {
6329 cur_ns->rx_crc_errors = pf->stats.crc_errors;
6330 cur_ns->rx_errors = pf->stats.crc_errors +
6331 pf->stats.illegal_bytes +
6332 pf->stats.rx_len_errors +
6333 pf->stats.rx_undersize +
6334 pf->hw_csum_rx_error +
6335 pf->stats.rx_jabber +
6336 pf->stats.rx_fragments +
6337 pf->stats.rx_oversize;
6338 cur_ns->rx_length_errors = pf->stats.rx_len_errors;
6339 /* record drops from the port level */
6340 cur_ns->rx_missed_errors = pf->stats.eth.rx_discards;
6345 * ice_update_pf_stats - Update PF port stats counters
6346 * @pf: PF whose stats needs to be updated
6348 void ice_update_pf_stats(struct ice_pf *pf)
6350 struct ice_hw_port_stats *prev_ps, *cur_ps;
6351 struct ice_hw *hw = &pf->hw;
6355 port = hw->port_info->lport;
6356 prev_ps = &pf->stats_prev;
6357 cur_ps = &pf->stats;
6359 ice_stat_update40(hw, GLPRT_GORCL(port), pf->stat_prev_loaded,
6360 &prev_ps->eth.rx_bytes,
6361 &cur_ps->eth.rx_bytes);
6363 ice_stat_update40(hw, GLPRT_UPRCL(port), pf->stat_prev_loaded,
6364 &prev_ps->eth.rx_unicast,
6365 &cur_ps->eth.rx_unicast);
6367 ice_stat_update40(hw, GLPRT_MPRCL(port), pf->stat_prev_loaded,
6368 &prev_ps->eth.rx_multicast,
6369 &cur_ps->eth.rx_multicast);
6371 ice_stat_update40(hw, GLPRT_BPRCL(port), pf->stat_prev_loaded,
6372 &prev_ps->eth.rx_broadcast,
6373 &cur_ps->eth.rx_broadcast);
6375 ice_stat_update32(hw, PRTRPB_RDPC, pf->stat_prev_loaded,
6376 &prev_ps->eth.rx_discards,
6377 &cur_ps->eth.rx_discards);
6379 ice_stat_update40(hw, GLPRT_GOTCL(port), pf->stat_prev_loaded,
6380 &prev_ps->eth.tx_bytes,
6381 &cur_ps->eth.tx_bytes);
6383 ice_stat_update40(hw, GLPRT_UPTCL(port), pf->stat_prev_loaded,
6384 &prev_ps->eth.tx_unicast,
6385 &cur_ps->eth.tx_unicast);
6387 ice_stat_update40(hw, GLPRT_MPTCL(port), pf->stat_prev_loaded,
6388 &prev_ps->eth.tx_multicast,
6389 &cur_ps->eth.tx_multicast);
6391 ice_stat_update40(hw, GLPRT_BPTCL(port), pf->stat_prev_loaded,
6392 &prev_ps->eth.tx_broadcast,
6393 &cur_ps->eth.tx_broadcast);
6395 ice_stat_update32(hw, GLPRT_TDOLD(port), pf->stat_prev_loaded,
6396 &prev_ps->tx_dropped_link_down,
6397 &cur_ps->tx_dropped_link_down);
6399 ice_stat_update40(hw, GLPRT_PRC64L(port), pf->stat_prev_loaded,
6400 &prev_ps->rx_size_64, &cur_ps->rx_size_64);
6402 ice_stat_update40(hw, GLPRT_PRC127L(port), pf->stat_prev_loaded,
6403 &prev_ps->rx_size_127, &cur_ps->rx_size_127);
6405 ice_stat_update40(hw, GLPRT_PRC255L(port), pf->stat_prev_loaded,
6406 &prev_ps->rx_size_255, &cur_ps->rx_size_255);
6408 ice_stat_update40(hw, GLPRT_PRC511L(port), pf->stat_prev_loaded,
6409 &prev_ps->rx_size_511, &cur_ps->rx_size_511);
6411 ice_stat_update40(hw, GLPRT_PRC1023L(port), pf->stat_prev_loaded,
6412 &prev_ps->rx_size_1023, &cur_ps->rx_size_1023);
6414 ice_stat_update40(hw, GLPRT_PRC1522L(port), pf->stat_prev_loaded,
6415 &prev_ps->rx_size_1522, &cur_ps->rx_size_1522);
6417 ice_stat_update40(hw, GLPRT_PRC9522L(port), pf->stat_prev_loaded,
6418 &prev_ps->rx_size_big, &cur_ps->rx_size_big);
6420 ice_stat_update40(hw, GLPRT_PTC64L(port), pf->stat_prev_loaded,
6421 &prev_ps->tx_size_64, &cur_ps->tx_size_64);
6423 ice_stat_update40(hw, GLPRT_PTC127L(port), pf->stat_prev_loaded,
6424 &prev_ps->tx_size_127, &cur_ps->tx_size_127);
6426 ice_stat_update40(hw, GLPRT_PTC255L(port), pf->stat_prev_loaded,
6427 &prev_ps->tx_size_255, &cur_ps->tx_size_255);
6429 ice_stat_update40(hw, GLPRT_PTC511L(port), pf->stat_prev_loaded,
6430 &prev_ps->tx_size_511, &cur_ps->tx_size_511);
6432 ice_stat_update40(hw, GLPRT_PTC1023L(port), pf->stat_prev_loaded,
6433 &prev_ps->tx_size_1023, &cur_ps->tx_size_1023);
6435 ice_stat_update40(hw, GLPRT_PTC1522L(port), pf->stat_prev_loaded,
6436 &prev_ps->tx_size_1522, &cur_ps->tx_size_1522);
6438 ice_stat_update40(hw, GLPRT_PTC9522L(port), pf->stat_prev_loaded,
6439 &prev_ps->tx_size_big, &cur_ps->tx_size_big);
6441 fd_ctr_base = hw->fd_ctr_base;
6443 ice_stat_update40(hw,
6444 GLSTAT_FD_CNT0L(ICE_FD_SB_STAT_IDX(fd_ctr_base)),
6445 pf->stat_prev_loaded, &prev_ps->fd_sb_match,
6446 &cur_ps->fd_sb_match);
6447 ice_stat_update32(hw, GLPRT_LXONRXC(port), pf->stat_prev_loaded,
6448 &prev_ps->link_xon_rx, &cur_ps->link_xon_rx);
6450 ice_stat_update32(hw, GLPRT_LXOFFRXC(port), pf->stat_prev_loaded,
6451 &prev_ps->link_xoff_rx, &cur_ps->link_xoff_rx);
6453 ice_stat_update32(hw, GLPRT_LXONTXC(port), pf->stat_prev_loaded,
6454 &prev_ps->link_xon_tx, &cur_ps->link_xon_tx);
6456 ice_stat_update32(hw, GLPRT_LXOFFTXC(port), pf->stat_prev_loaded,
6457 &prev_ps->link_xoff_tx, &cur_ps->link_xoff_tx);
6459 ice_update_dcb_stats(pf);
6461 ice_stat_update32(hw, GLPRT_CRCERRS(port), pf->stat_prev_loaded,
6462 &prev_ps->crc_errors, &cur_ps->crc_errors);
6464 ice_stat_update32(hw, GLPRT_ILLERRC(port), pf->stat_prev_loaded,
6465 &prev_ps->illegal_bytes, &cur_ps->illegal_bytes);
6467 ice_stat_update32(hw, GLPRT_MLFC(port), pf->stat_prev_loaded,
6468 &prev_ps->mac_local_faults,
6469 &cur_ps->mac_local_faults);
6471 ice_stat_update32(hw, GLPRT_MRFC(port), pf->stat_prev_loaded,
6472 &prev_ps->mac_remote_faults,
6473 &cur_ps->mac_remote_faults);
6475 ice_stat_update32(hw, GLPRT_RLEC(port), pf->stat_prev_loaded,
6476 &prev_ps->rx_len_errors, &cur_ps->rx_len_errors);
6478 ice_stat_update32(hw, GLPRT_RUC(port), pf->stat_prev_loaded,
6479 &prev_ps->rx_undersize, &cur_ps->rx_undersize);
6481 ice_stat_update32(hw, GLPRT_RFC(port), pf->stat_prev_loaded,
6482 &prev_ps->rx_fragments, &cur_ps->rx_fragments);
6484 ice_stat_update32(hw, GLPRT_ROC(port), pf->stat_prev_loaded,
6485 &prev_ps->rx_oversize, &cur_ps->rx_oversize);
6487 ice_stat_update32(hw, GLPRT_RJC(port), pf->stat_prev_loaded,
6488 &prev_ps->rx_jabber, &cur_ps->rx_jabber);
6490 cur_ps->fd_sb_status = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0;
6492 pf->stat_prev_loaded = true;
6496 * ice_get_stats64 - get statistics for network device structure
6497 * @netdev: network interface device structure
6498 * @stats: main device statistics structure
6501 void ice_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
6503 struct ice_netdev_priv *np = netdev_priv(netdev);
6504 struct rtnl_link_stats64 *vsi_stats;
6505 struct ice_vsi *vsi = np->vsi;
6507 vsi_stats = &vsi->net_stats;
6509 if (!vsi->num_txq || !vsi->num_rxq)
6512 /* netdev packet/byte stats come from ring counter. These are obtained
6513 * by summing up ring counters (done by ice_update_vsi_ring_stats).
6514 * But, only call the update routine and read the registers if VSI is
6517 if (!test_bit(ICE_VSI_DOWN, vsi->state))
6518 ice_update_vsi_ring_stats(vsi);
6519 stats->tx_packets = vsi_stats->tx_packets;
6520 stats->tx_bytes = vsi_stats->tx_bytes;
6521 stats->rx_packets = vsi_stats->rx_packets;
6522 stats->rx_bytes = vsi_stats->rx_bytes;
6524 /* The rest of the stats can be read from the hardware but instead we
6525 * just return values that the watchdog task has already obtained from
6528 stats->multicast = vsi_stats->multicast;
6529 stats->tx_errors = vsi_stats->tx_errors;
6530 stats->tx_dropped = vsi_stats->tx_dropped;
6531 stats->rx_errors = vsi_stats->rx_errors;
6532 stats->rx_dropped = vsi_stats->rx_dropped;
6533 stats->rx_crc_errors = vsi_stats->rx_crc_errors;
6534 stats->rx_length_errors = vsi_stats->rx_length_errors;
6538 * ice_napi_disable_all - Disable NAPI for all q_vectors in the VSI
6539 * @vsi: VSI having NAPI disabled
6541 static void ice_napi_disable_all(struct ice_vsi *vsi)
6548 ice_for_each_q_vector(vsi, q_idx) {
6549 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];
6551 if (q_vector->rx.rx_ring || q_vector->tx.tx_ring)
6552 napi_disable(&q_vector->napi);
6554 cancel_work_sync(&q_vector->tx.dim.work);
6555 cancel_work_sync(&q_vector->rx.dim.work);
6560 * ice_down - Shutdown the connection
6561 * @vsi: The VSI being stopped
6563 * Caller of this function is expected to set the vsi->state ICE_DOWN bit
6565 int ice_down(struct ice_vsi *vsi)
6567 int i, tx_err, rx_err, link_err = 0, vlan_err = 0;
6569 WARN_ON(!test_bit(ICE_VSI_DOWN, vsi->state));
6571 if (vsi->netdev && vsi->type == ICE_VSI_PF) {
6572 vlan_err = ice_vsi_del_vlan_zero(vsi);
6573 if (!ice_is_e810(&vsi->back->hw))
6574 ice_ptp_link_change(vsi->back, vsi->back->hw.pf_id, false);
6575 netif_carrier_off(vsi->netdev);
6576 netif_tx_disable(vsi->netdev);
6577 } else if (vsi->type == ICE_VSI_SWITCHDEV_CTRL) {
6578 ice_eswitch_stop_all_tx_queues(vsi->back);
6581 ice_vsi_dis_irq(vsi);
6583 tx_err = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
6585 netdev_err(vsi->netdev, "Failed stop Tx rings, VSI %d error %d\n",
6586 vsi->vsi_num, tx_err);
6587 if (!tx_err && ice_is_xdp_ena_vsi(vsi)) {
6588 tx_err = ice_vsi_stop_xdp_tx_rings(vsi);
6590 netdev_err(vsi->netdev, "Failed stop XDP rings, VSI %d error %d\n",
6591 vsi->vsi_num, tx_err);
6594 rx_err = ice_vsi_stop_all_rx_rings(vsi);
6596 netdev_err(vsi->netdev, "Failed stop Rx rings, VSI %d error %d\n",
6597 vsi->vsi_num, rx_err);
6599 ice_napi_disable_all(vsi);
6601 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags)) {
6602 link_err = ice_force_phys_link_state(vsi, false);
6604 netdev_err(vsi->netdev, "Failed to set physical link down, VSI %d error %d\n",
6605 vsi->vsi_num, link_err);
6608 ice_for_each_txq(vsi, i)
6609 ice_clean_tx_ring(vsi->tx_rings[i]);
6611 ice_for_each_rxq(vsi, i)
6612 ice_clean_rx_ring(vsi->rx_rings[i]);
6614 if (tx_err || rx_err || link_err || vlan_err) {
6615 netdev_err(vsi->netdev, "Failed to close VSI 0x%04X on switch 0x%04X\n",
6616 vsi->vsi_num, vsi->vsw->sw_id);
6624 * ice_vsi_setup_tx_rings - Allocate VSI Tx queue resources
6625 * @vsi: VSI having resources allocated
6627 * Return 0 on success, negative on failure
6629 int ice_vsi_setup_tx_rings(struct ice_vsi *vsi)
6633 if (!vsi->num_txq) {
6634 dev_err(ice_pf_to_dev(vsi->back), "VSI %d has 0 Tx queues\n",
6639 ice_for_each_txq(vsi, i) {
6640 struct ice_tx_ring *ring = vsi->tx_rings[i];
6646 ring->netdev = vsi->netdev;
6647 err = ice_setup_tx_ring(ring);
6656 * ice_vsi_setup_rx_rings - Allocate VSI Rx queue resources
6657 * @vsi: VSI having resources allocated
6659 * Return 0 on success, negative on failure
6661 int ice_vsi_setup_rx_rings(struct ice_vsi *vsi)
6665 if (!vsi->num_rxq) {
6666 dev_err(ice_pf_to_dev(vsi->back), "VSI %d has 0 Rx queues\n",
6671 ice_for_each_rxq(vsi, i) {
6672 struct ice_rx_ring *ring = vsi->rx_rings[i];
6678 ring->netdev = vsi->netdev;
6679 err = ice_setup_rx_ring(ring);
6688 * ice_vsi_open_ctrl - open control VSI for use
6689 * @vsi: the VSI to open
6691 * Initialization of the Control VSI
6693 * Returns 0 on success, negative value on error
6695 int ice_vsi_open_ctrl(struct ice_vsi *vsi)
6697 char int_name[ICE_INT_NAME_STR_LEN];
6698 struct ice_pf *pf = vsi->back;
6702 dev = ice_pf_to_dev(pf);
6703 /* allocate descriptors */
6704 err = ice_vsi_setup_tx_rings(vsi);
6708 err = ice_vsi_setup_rx_rings(vsi);
6712 err = ice_vsi_cfg(vsi);
6716 snprintf(int_name, sizeof(int_name) - 1, "%s-%s:ctrl",
6717 dev_driver_string(dev), dev_name(dev));
6718 err = ice_vsi_req_irq_msix(vsi, int_name);
6722 ice_vsi_cfg_msix(vsi);
6724 err = ice_vsi_start_all_rx_rings(vsi);
6726 goto err_up_complete;
6728 clear_bit(ICE_VSI_DOWN, vsi->state);
6729 ice_vsi_ena_irq(vsi);
6736 ice_vsi_free_rx_rings(vsi);
6738 ice_vsi_free_tx_rings(vsi);
6744 * ice_vsi_open - Called when a network interface is made active
6745 * @vsi: the VSI to open
6747 * Initialization of the VSI
6749 * Returns 0 on success, negative value on error
6751 int ice_vsi_open(struct ice_vsi *vsi)
6753 char int_name[ICE_INT_NAME_STR_LEN];
6754 struct ice_pf *pf = vsi->back;
6757 /* allocate descriptors */
6758 err = ice_vsi_setup_tx_rings(vsi);
6762 err = ice_vsi_setup_rx_rings(vsi);
6766 err = ice_vsi_cfg(vsi);
6770 snprintf(int_name, sizeof(int_name) - 1, "%s-%s",
6771 dev_driver_string(ice_pf_to_dev(pf)), vsi->netdev->name);
6772 err = ice_vsi_req_irq_msix(vsi, int_name);
6776 if (vsi->type == ICE_VSI_PF) {
6777 /* Notify the stack of the actual queue counts. */
6778 err = netif_set_real_num_tx_queues(vsi->netdev, vsi->num_txq);
6782 err = netif_set_real_num_rx_queues(vsi->netdev, vsi->num_rxq);
6787 err = ice_up_complete(vsi);
6789 goto err_up_complete;
6796 ice_vsi_free_irq(vsi);
6798 ice_vsi_free_rx_rings(vsi);
6800 ice_vsi_free_tx_rings(vsi);
6806 * ice_vsi_release_all - Delete all VSIs
6807 * @pf: PF from which all VSIs are being removed
6809 static void ice_vsi_release_all(struct ice_pf *pf)
6816 ice_for_each_vsi(pf, i) {
6820 if (pf->vsi[i]->type == ICE_VSI_CHNL)
6823 err = ice_vsi_release(pf->vsi[i]);
6825 dev_dbg(ice_pf_to_dev(pf), "Failed to release pf->vsi[%d], err %d, vsi_num = %d\n",
6826 i, err, pf->vsi[i]->vsi_num);
6831 * ice_vsi_rebuild_by_type - Rebuild VSI of a given type
6832 * @pf: pointer to the PF instance
6833 * @type: VSI type to rebuild
6835 * Iterates through the pf->vsi array and rebuilds VSIs of the requested type
6837 static int ice_vsi_rebuild_by_type(struct ice_pf *pf, enum ice_vsi_type type)
6839 struct device *dev = ice_pf_to_dev(pf);
6842 ice_for_each_vsi(pf, i) {
6843 struct ice_vsi *vsi = pf->vsi[i];
6845 if (!vsi || vsi->type != type)
6848 /* rebuild the VSI */
6849 err = ice_vsi_rebuild(vsi, true);
6851 dev_err(dev, "rebuild VSI failed, err %d, VSI index %d, type %s\n",
6852 err, vsi->idx, ice_vsi_type_str(type));
6856 /* replay filters for the VSI */
6857 err = ice_replay_vsi(&pf->hw, vsi->idx);
6859 dev_err(dev, "replay VSI failed, error %d, VSI index %d, type %s\n",
6860 err, vsi->idx, ice_vsi_type_str(type));
6864 /* Re-map HW VSI number, using VSI handle that has been
6865 * previously validated in ice_replay_vsi() call above
6867 vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx);
6869 /* enable the VSI */
6870 err = ice_ena_vsi(vsi, false);
6872 dev_err(dev, "enable VSI failed, err %d, VSI index %d, type %s\n",
6873 err, vsi->idx, ice_vsi_type_str(type));
6877 dev_info(dev, "VSI rebuilt. VSI index %d, type %s\n", vsi->idx,
6878 ice_vsi_type_str(type));
6885 * ice_update_pf_netdev_link - Update PF netdev link status
6886 * @pf: pointer to the PF instance
6888 static void ice_update_pf_netdev_link(struct ice_pf *pf)
6893 ice_for_each_vsi(pf, i) {
6894 struct ice_vsi *vsi = pf->vsi[i];
6896 if (!vsi || vsi->type != ICE_VSI_PF)
6899 ice_get_link_status(pf->vsi[i]->port_info, &link_up);
6901 netif_carrier_on(pf->vsi[i]->netdev);
6902 netif_tx_wake_all_queues(pf->vsi[i]->netdev);
6904 netif_carrier_off(pf->vsi[i]->netdev);
6905 netif_tx_stop_all_queues(pf->vsi[i]->netdev);
6911 * ice_rebuild - rebuild after reset
6912 * @pf: PF to rebuild
6913 * @reset_type: type of reset
6915 * Do not rebuild VF VSI in this flow because that is already handled via
6916 * ice_reset_all_vfs(). This is because requirements for resetting a VF after a
6917 * PFR/CORER/GLOBER/etc. are different than the normal flow. Also, we don't want
6918 * to reset/rebuild all the VF VSI twice.
6920 static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type)
6922 struct device *dev = ice_pf_to_dev(pf);
6923 struct ice_hw *hw = &pf->hw;
6927 if (test_bit(ICE_DOWN, pf->state))
6928 goto clear_recovery;
6930 dev_dbg(dev, "rebuilding PF after reset_type=%d\n", reset_type);
6932 #define ICE_EMP_RESET_SLEEP_MS 5000
6933 if (reset_type == ICE_RESET_EMPR) {
6934 /* If an EMP reset has occurred, any previously pending flash
6935 * update will have completed. We no longer know whether or
6936 * not the NVM update EMP reset is restricted.
6938 pf->fw_emp_reset_disabled = false;
6940 msleep(ICE_EMP_RESET_SLEEP_MS);
6943 err = ice_init_all_ctrlq(hw);
6945 dev_err(dev, "control queues init failed %d\n", err);
6946 goto err_init_ctrlq;
6949 /* if DDP was previously loaded successfully */
6950 if (!ice_is_safe_mode(pf)) {
6951 /* reload the SW DB of filter tables */
6952 if (reset_type == ICE_RESET_PFR)
6953 ice_fill_blk_tbls(hw);
6955 /* Reload DDP Package after CORER/GLOBR reset */
6956 ice_load_pkg(NULL, pf);
6959 err = ice_clear_pf_cfg(hw);
6961 dev_err(dev, "clear PF configuration failed %d\n", err);
6962 goto err_init_ctrlq;
6965 if (pf->first_sw->dflt_vsi_ena)
6966 dev_info(dev, "Clearing default VSI, re-enable after reset completes\n");
6967 /* clear the default VSI configuration if it exists */
6968 pf->first_sw->dflt_vsi = NULL;
6969 pf->first_sw->dflt_vsi_ena = false;
6971 ice_clear_pxe_mode(hw);
6973 err = ice_init_nvm(hw);
6975 dev_err(dev, "ice_init_nvm failed %d\n", err);
6976 goto err_init_ctrlq;
6979 err = ice_get_caps(hw);
6981 dev_err(dev, "ice_get_caps failed %d\n", err);
6982 goto err_init_ctrlq;
6985 err = ice_aq_set_mac_cfg(hw, ICE_AQ_SET_MAC_FRAME_SIZE_MAX, NULL);
6987 dev_err(dev, "set_mac_cfg failed %d\n", err);
6988 goto err_init_ctrlq;
6991 dvm = ice_is_dvm_ena(hw);
6993 err = ice_aq_set_port_params(pf->hw.port_info, dvm, NULL);
6995 goto err_init_ctrlq;
6997 err = ice_sched_init_port(hw->port_info);
6999 goto err_sched_init_port;
7001 /* start misc vector */
7002 err = ice_req_irq_msix_misc(pf);
7004 dev_err(dev, "misc vector setup failed: %d\n", err);
7005 goto err_sched_init_port;
7008 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) {
7009 wr32(hw, PFQF_FD_ENA, PFQF_FD_ENA_FD_ENA_M);
7010 if (!rd32(hw, PFQF_FD_SIZE)) {
7011 u16 unused, guar, b_effort;
7013 guar = hw->func_caps.fd_fltr_guar;
7014 b_effort = hw->func_caps.fd_fltr_best_effort;
7016 /* force guaranteed filter pool for PF */
7017 ice_alloc_fd_guar_item(hw, &unused, guar);
7018 /* force shared filter pool for PF */
7019 ice_alloc_fd_shrd_item(hw, &unused, b_effort);
7023 if (test_bit(ICE_FLAG_DCB_ENA, pf->flags))
7024 ice_dcb_rebuild(pf);
7026 /* If the PF previously had enabled PTP, PTP init needs to happen before
7027 * the VSI rebuild. If not, this causes the PTP link status events to
7030 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
7033 if (ice_is_feature_supported(pf, ICE_F_GNSS))
7036 /* rebuild PF VSI */
7037 err = ice_vsi_rebuild_by_type(pf, ICE_VSI_PF);
7039 dev_err(dev, "PF VSI rebuild failed: %d\n", err);
7040 goto err_vsi_rebuild;
7043 /* configure PTP timestamping after VSI rebuild */
7044 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
7045 ice_ptp_cfg_timestamp(pf, false);
7047 err = ice_vsi_rebuild_by_type(pf, ICE_VSI_SWITCHDEV_CTRL);
7049 dev_err(dev, "Switchdev CTRL VSI rebuild failed: %d\n", err);
7050 goto err_vsi_rebuild;
7053 if (reset_type == ICE_RESET_PFR) {
7054 err = ice_rebuild_channels(pf);
7056 dev_err(dev, "failed to rebuild and replay ADQ VSIs, err %d\n",
7058 goto err_vsi_rebuild;
7062 /* If Flow Director is active */
7063 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) {
7064 err = ice_vsi_rebuild_by_type(pf, ICE_VSI_CTRL);
7066 dev_err(dev, "control VSI rebuild failed: %d\n", err);
7067 goto err_vsi_rebuild;
7070 /* replay HW Flow Director recipes */
7072 ice_fdir_replay_flows(hw);
7074 /* replay Flow Director filters */
7075 ice_fdir_replay_fltrs(pf);
7077 ice_rebuild_arfs(pf);
7080 ice_update_pf_netdev_link(pf);
7082 /* tell the firmware we are up */
7083 err = ice_send_version(pf);
7085 dev_err(dev, "Rebuild failed due to error sending driver version: %d\n",
7087 goto err_vsi_rebuild;
7090 ice_replay_post(hw);
7092 /* if we get here, reset flow is successful */
7093 clear_bit(ICE_RESET_FAILED, pf->state);
7095 ice_plug_aux_dev(pf);
7099 err_sched_init_port:
7100 ice_sched_cleanup_all(hw);
7102 ice_shutdown_all_ctrlq(hw);
7103 set_bit(ICE_RESET_FAILED, pf->state);
7105 /* set this bit in PF state to control service task scheduling */
7106 set_bit(ICE_NEEDS_RESTART, pf->state);
7107 dev_err(dev, "Rebuild failed, unload and reload driver\n");
7111 * ice_max_xdp_frame_size - returns the maximum allowed frame size for XDP
7112 * @vsi: Pointer to VSI structure
7114 static int ice_max_xdp_frame_size(struct ice_vsi *vsi)
7116 if (PAGE_SIZE >= 8192 || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags))
7117 return ICE_RXBUF_2048 - XDP_PACKET_HEADROOM;
7119 return ICE_RXBUF_3072;
7123 * ice_change_mtu - NDO callback to change the MTU
7124 * @netdev: network interface device structure
7125 * @new_mtu: new value for maximum frame size
7127 * Returns 0 on success, negative on failure
7129 static int ice_change_mtu(struct net_device *netdev, int new_mtu)
7131 struct ice_netdev_priv *np = netdev_priv(netdev);
7132 struct ice_vsi *vsi = np->vsi;
7133 struct ice_pf *pf = vsi->back;
7137 if (new_mtu == (int)netdev->mtu) {
7138 netdev_warn(netdev, "MTU is already %u\n", netdev->mtu);
7142 if (ice_is_xdp_ena_vsi(vsi)) {
7143 int frame_size = ice_max_xdp_frame_size(vsi);
7145 if (new_mtu + ICE_ETH_PKT_HDR_PAD > frame_size) {
7146 netdev_err(netdev, "max MTU for XDP usage is %d\n",
7147 frame_size - ICE_ETH_PKT_HDR_PAD);
7152 /* if a reset is in progress, wait for some time for it to complete */
7154 if (ice_is_reset_in_progress(pf->state)) {
7156 usleep_range(1000, 2000);
7161 } while (count < 100);
7164 netdev_err(netdev, "can't change MTU. Device is busy\n");
7168 netdev->mtu = (unsigned int)new_mtu;
7170 /* if VSI is up, bring it down and then back up */
7171 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {
7172 err = ice_down(vsi);
7174 netdev_err(netdev, "change MTU if_down err %d\n", err);
7180 netdev_err(netdev, "change MTU if_up err %d\n", err);
7185 netdev_dbg(netdev, "changed MTU to %d\n", new_mtu);
7186 set_bit(ICE_FLAG_MTU_CHANGED, pf->flags);
7192 * ice_eth_ioctl - Access the hwtstamp interface
7193 * @netdev: network interface device structure
7194 * @ifr: interface request data
7195 * @cmd: ioctl command
7197 static int ice_eth_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
7199 struct ice_netdev_priv *np = netdev_priv(netdev);
7200 struct ice_pf *pf = np->vsi->back;
7204 return ice_ptp_get_ts_config(pf, ifr);
7206 return ice_ptp_set_ts_config(pf, ifr);
7213 * ice_aq_str - convert AQ err code to a string
7214 * @aq_err: the AQ error code to convert
7216 const char *ice_aq_str(enum ice_aq_err aq_err)
7221 case ICE_AQ_RC_EPERM:
7222 return "ICE_AQ_RC_EPERM";
7223 case ICE_AQ_RC_ENOENT:
7224 return "ICE_AQ_RC_ENOENT";
7225 case ICE_AQ_RC_ENOMEM:
7226 return "ICE_AQ_RC_ENOMEM";
7227 case ICE_AQ_RC_EBUSY:
7228 return "ICE_AQ_RC_EBUSY";
7229 case ICE_AQ_RC_EEXIST:
7230 return "ICE_AQ_RC_EEXIST";
7231 case ICE_AQ_RC_EINVAL:
7232 return "ICE_AQ_RC_EINVAL";
7233 case ICE_AQ_RC_ENOSPC:
7234 return "ICE_AQ_RC_ENOSPC";
7235 case ICE_AQ_RC_ENOSYS:
7236 return "ICE_AQ_RC_ENOSYS";
7237 case ICE_AQ_RC_EMODE:
7238 return "ICE_AQ_RC_EMODE";
7239 case ICE_AQ_RC_ENOSEC:
7240 return "ICE_AQ_RC_ENOSEC";
7241 case ICE_AQ_RC_EBADSIG:
7242 return "ICE_AQ_RC_EBADSIG";
7243 case ICE_AQ_RC_ESVN:
7244 return "ICE_AQ_RC_ESVN";
7245 case ICE_AQ_RC_EBADMAN:
7246 return "ICE_AQ_RC_EBADMAN";
7247 case ICE_AQ_RC_EBADBUF:
7248 return "ICE_AQ_RC_EBADBUF";
7251 return "ICE_AQ_RC_UNKNOWN";
7255 * ice_set_rss_lut - Set RSS LUT
7256 * @vsi: Pointer to VSI structure
7257 * @lut: Lookup table
7258 * @lut_size: Lookup table size
7260 * Returns 0 on success, negative on failure
7262 int ice_set_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size)
7264 struct ice_aq_get_set_rss_lut_params params = {};
7265 struct ice_hw *hw = &vsi->back->hw;
7271 params.vsi_handle = vsi->idx;
7272 params.lut_size = lut_size;
7273 params.lut_type = vsi->rss_lut_type;
7276 status = ice_aq_set_rss_lut(hw, ¶ms);
7278 dev_err(ice_pf_to_dev(vsi->back), "Cannot set RSS lut, err %d aq_err %s\n",
7279 status, ice_aq_str(hw->adminq.sq_last_status));
7285 * ice_set_rss_key - Set RSS key
7286 * @vsi: Pointer to the VSI structure
7287 * @seed: RSS hash seed
7289 * Returns 0 on success, negative on failure
7291 int ice_set_rss_key(struct ice_vsi *vsi, u8 *seed)
7293 struct ice_hw *hw = &vsi->back->hw;
7299 status = ice_aq_set_rss_key(hw, vsi->idx, (struct ice_aqc_get_set_rss_keys *)seed);
7301 dev_err(ice_pf_to_dev(vsi->back), "Cannot set RSS key, err %d aq_err %s\n",
7302 status, ice_aq_str(hw->adminq.sq_last_status));
7308 * ice_get_rss_lut - Get RSS LUT
7309 * @vsi: Pointer to VSI structure
7310 * @lut: Buffer to store the lookup table entries
7311 * @lut_size: Size of buffer to store the lookup table entries
7313 * Returns 0 on success, negative on failure
7315 int ice_get_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size)
7317 struct ice_aq_get_set_rss_lut_params params = {};
7318 struct ice_hw *hw = &vsi->back->hw;
7324 params.vsi_handle = vsi->idx;
7325 params.lut_size = lut_size;
7326 params.lut_type = vsi->rss_lut_type;
7329 status = ice_aq_get_rss_lut(hw, ¶ms);
7331 dev_err(ice_pf_to_dev(vsi->back), "Cannot get RSS lut, err %d aq_err %s\n",
7332 status, ice_aq_str(hw->adminq.sq_last_status));
7338 * ice_get_rss_key - Get RSS key
7339 * @vsi: Pointer to VSI structure
7340 * @seed: Buffer to store the key in
7342 * Returns 0 on success, negative on failure
7344 int ice_get_rss_key(struct ice_vsi *vsi, u8 *seed)
7346 struct ice_hw *hw = &vsi->back->hw;
7352 status = ice_aq_get_rss_key(hw, vsi->idx, (struct ice_aqc_get_set_rss_keys *)seed);
7354 dev_err(ice_pf_to_dev(vsi->back), "Cannot get RSS key, err %d aq_err %s\n",
7355 status, ice_aq_str(hw->adminq.sq_last_status));
7361 * ice_bridge_getlink - Get the hardware bridge mode
7364 * @seq: RTNL message seq
7365 * @dev: the netdev being configured
7366 * @filter_mask: filter mask passed in
7367 * @nlflags: netlink flags passed in
7369 * Return the bridge mode (VEB/VEPA)
7372 ice_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
7373 struct net_device *dev, u32 filter_mask, int nlflags)
7375 struct ice_netdev_priv *np = netdev_priv(dev);
7376 struct ice_vsi *vsi = np->vsi;
7377 struct ice_pf *pf = vsi->back;
7380 bmode = pf->first_sw->bridge_mode;
7382 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bmode, 0, 0, nlflags,
7387 * ice_vsi_update_bridge_mode - Update VSI for switching bridge mode (VEB/VEPA)
7388 * @vsi: Pointer to VSI structure
7389 * @bmode: Hardware bridge mode (VEB/VEPA)
7391 * Returns 0 on success, negative on failure
7393 static int ice_vsi_update_bridge_mode(struct ice_vsi *vsi, u16 bmode)
7395 struct ice_aqc_vsi_props *vsi_props;
7396 struct ice_hw *hw = &vsi->back->hw;
7397 struct ice_vsi_ctx *ctxt;
7400 vsi_props = &vsi->info;
7402 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
7406 ctxt->info = vsi->info;
7408 if (bmode == BRIDGE_MODE_VEB)
7409 /* change from VEPA to VEB mode */
7410 ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB;
7412 /* change from VEB to VEPA mode */
7413 ctxt->info.sw_flags &= ~ICE_AQ_VSI_SW_FLAG_ALLOW_LB;
7414 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID);
7416 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
7418 dev_err(ice_pf_to_dev(vsi->back), "update VSI for bridge mode failed, bmode = %d err %d aq_err %s\n",
7419 bmode, ret, ice_aq_str(hw->adminq.sq_last_status));
7422 /* Update sw flags for book keeping */
7423 vsi_props->sw_flags = ctxt->info.sw_flags;
7431 * ice_bridge_setlink - Set the hardware bridge mode
7432 * @dev: the netdev being configured
7433 * @nlh: RTNL message
7434 * @flags: bridge setlink flags
7435 * @extack: netlink extended ack
7437 * Sets the bridge mode (VEB/VEPA) of the switch to which the netdev (VSI) is
7438 * hooked up to. Iterates through the PF VSI list and sets the loopback mode (if
7439 * not already set for all VSIs connected to this switch. And also update the
7440 * unicast switch filter rules for the corresponding switch of the netdev.
7443 ice_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
7444 u16 __always_unused flags,
7445 struct netlink_ext_ack __always_unused *extack)
7447 struct ice_netdev_priv *np = netdev_priv(dev);
7448 struct ice_pf *pf = np->vsi->back;
7449 struct nlattr *attr, *br_spec;
7450 struct ice_hw *hw = &pf->hw;
7451 struct ice_sw *pf_sw;
7452 int rem, v, err = 0;
7454 pf_sw = pf->first_sw;
7455 /* find the attribute in the netlink message */
7456 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
7458 nla_for_each_nested(attr, br_spec, rem) {
7461 if (nla_type(attr) != IFLA_BRIDGE_MODE)
7463 mode = nla_get_u16(attr);
7464 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
7466 /* Continue if bridge mode is not being flipped */
7467 if (mode == pf_sw->bridge_mode)
7469 /* Iterates through the PF VSI list and update the loopback
7472 ice_for_each_vsi(pf, v) {
7475 err = ice_vsi_update_bridge_mode(pf->vsi[v], mode);
7480 hw->evb_veb = (mode == BRIDGE_MODE_VEB);
7481 /* Update the unicast switch filter rules for the corresponding
7482 * switch of the netdev
7484 err = ice_update_sw_rule_bridge_mode(hw);
7486 netdev_err(dev, "switch rule update failed, mode = %d err %d aq_err %s\n",
7488 ice_aq_str(hw->adminq.sq_last_status));
7489 /* revert hw->evb_veb */
7490 hw->evb_veb = (pf_sw->bridge_mode == BRIDGE_MODE_VEB);
7494 pf_sw->bridge_mode = mode;
7501 * ice_tx_timeout - Respond to a Tx Hang
7502 * @netdev: network interface device structure
7503 * @txqueue: Tx queue
7505 static void ice_tx_timeout(struct net_device *netdev, unsigned int txqueue)
7507 struct ice_netdev_priv *np = netdev_priv(netdev);
7508 struct ice_tx_ring *tx_ring = NULL;
7509 struct ice_vsi *vsi = np->vsi;
7510 struct ice_pf *pf = vsi->back;
7513 pf->tx_timeout_count++;
7515 /* Check if PFC is enabled for the TC to which the queue belongs
7516 * to. If yes then Tx timeout is not caused by a hung queue, no
7517 * need to reset and rebuild
7519 if (ice_is_pfc_causing_hung_q(pf, txqueue)) {
7520 dev_info(ice_pf_to_dev(pf), "Fake Tx hang detected on queue %u, timeout caused by PFC storm\n",
7525 /* now that we have an index, find the tx_ring struct */
7526 ice_for_each_txq(vsi, i)
7527 if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc)
7528 if (txqueue == vsi->tx_rings[i]->q_index) {
7529 tx_ring = vsi->tx_rings[i];
7533 /* Reset recovery level if enough time has elapsed after last timeout.
7534 * Also ensure no new reset action happens before next timeout period.
7536 if (time_after(jiffies, (pf->tx_timeout_last_recovery + HZ * 20)))
7537 pf->tx_timeout_recovery_level = 1;
7538 else if (time_before(jiffies, (pf->tx_timeout_last_recovery +
7539 netdev->watchdog_timeo)))
7543 struct ice_hw *hw = &pf->hw;
7546 head = (rd32(hw, QTX_COMM_HEAD(vsi->txq_map[txqueue])) &
7547 QTX_COMM_HEAD_HEAD_M) >> QTX_COMM_HEAD_HEAD_S;
7548 /* Read interrupt register */
7549 val = rd32(hw, GLINT_DYN_CTL(tx_ring->q_vector->reg_idx));
7551 netdev_info(netdev, "tx_timeout: VSI_num: %d, Q %u, NTC: 0x%x, HW_HEAD: 0x%x, NTU: 0x%x, INT: 0x%x\n",
7552 vsi->vsi_num, txqueue, tx_ring->next_to_clean,
7553 head, tx_ring->next_to_use, val);
7556 pf->tx_timeout_last_recovery = jiffies;
7557 netdev_info(netdev, "tx_timeout recovery level %d, txqueue %u\n",
7558 pf->tx_timeout_recovery_level, txqueue);
7560 switch (pf->tx_timeout_recovery_level) {
7562 set_bit(ICE_PFR_REQ, pf->state);
7565 set_bit(ICE_CORER_REQ, pf->state);
7568 set_bit(ICE_GLOBR_REQ, pf->state);
7571 netdev_err(netdev, "tx_timeout recovery unsuccessful, device is in unrecoverable state.\n");
7572 set_bit(ICE_DOWN, pf->state);
7573 set_bit(ICE_VSI_NEEDS_RESTART, vsi->state);
7574 set_bit(ICE_SERVICE_DIS, pf->state);
7578 ice_service_task_schedule(pf);
7579 pf->tx_timeout_recovery_level++;
7583 * ice_setup_tc_cls_flower - flower classifier offloads
7584 * @np: net device to configure
7585 * @filter_dev: device on which filter is added
7586 * @cls_flower: offload data
7589 ice_setup_tc_cls_flower(struct ice_netdev_priv *np,
7590 struct net_device *filter_dev,
7591 struct flow_cls_offload *cls_flower)
7593 struct ice_vsi *vsi = np->vsi;
7595 if (cls_flower->common.chain_index)
7598 switch (cls_flower->command) {
7599 case FLOW_CLS_REPLACE:
7600 return ice_add_cls_flower(filter_dev, vsi, cls_flower);
7601 case FLOW_CLS_DESTROY:
7602 return ice_del_cls_flower(vsi, cls_flower);
7609 * ice_setup_tc_block_cb - callback handler registered for TC block
7610 * @type: TC SETUP type
7611 * @type_data: TC flower offload data that contains user input
7612 * @cb_priv: netdev private data
7615 ice_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv)
7617 struct ice_netdev_priv *np = cb_priv;
7620 case TC_SETUP_CLSFLOWER:
7621 return ice_setup_tc_cls_flower(np, np->vsi->netdev,
7629 * ice_validate_mqprio_qopt - Validate TCF input parameters
7630 * @vsi: Pointer to VSI
7631 * @mqprio_qopt: input parameters for mqprio queue configuration
7633 * This function validates MQPRIO params, such as qcount (power of 2 wherever
7634 * needed), and make sure user doesn't specify qcount and BW rate limit
7635 * for TCs, which are more than "num_tc"
7638 ice_validate_mqprio_qopt(struct ice_vsi *vsi,
7639 struct tc_mqprio_qopt_offload *mqprio_qopt)
7641 u64 sum_max_rate = 0, sum_min_rate = 0;
7642 int non_power_of_2_qcount = 0;
7643 struct ice_pf *pf = vsi->back;
7644 int max_rss_q_cnt = 0;
7649 if (vsi->type != ICE_VSI_PF)
7652 if (mqprio_qopt->qopt.offset[0] != 0 ||
7653 mqprio_qopt->qopt.num_tc < 1 ||
7654 mqprio_qopt->qopt.num_tc > ICE_CHNL_MAX_TC)
7657 dev = ice_pf_to_dev(pf);
7658 vsi->ch_rss_size = 0;
7659 num_tc = mqprio_qopt->qopt.num_tc;
7661 for (i = 0; num_tc; i++) {
7662 int qcount = mqprio_qopt->qopt.count[i];
7663 u64 max_rate, min_rate, rem;
7668 if (is_power_of_2(qcount)) {
7669 if (non_power_of_2_qcount &&
7670 qcount > non_power_of_2_qcount) {
7671 dev_err(dev, "qcount[%d] cannot be greater than non power of 2 qcount[%d]\n",
7672 qcount, non_power_of_2_qcount);
7675 if (qcount > max_rss_q_cnt)
7676 max_rss_q_cnt = qcount;
7678 if (non_power_of_2_qcount &&
7679 qcount != non_power_of_2_qcount) {
7680 dev_err(dev, "Only one non power of 2 qcount allowed[%d,%d]\n",
7681 qcount, non_power_of_2_qcount);
7684 if (qcount < max_rss_q_cnt) {
7685 dev_err(dev, "non power of 2 qcount[%d] cannot be less than other qcount[%d]\n",
7686 qcount, max_rss_q_cnt);
7689 max_rss_q_cnt = qcount;
7690 non_power_of_2_qcount = qcount;
7693 /* TC command takes input in K/N/Gbps or K/M/Gbit etc but
7694 * converts the bandwidth rate limit into Bytes/s when
7695 * passing it down to the driver. So convert input bandwidth
7696 * from Bytes/s to Kbps
7698 max_rate = mqprio_qopt->max_rate[i];
7699 max_rate = div_u64(max_rate, ICE_BW_KBPS_DIVISOR);
7700 sum_max_rate += max_rate;
7702 /* min_rate is minimum guaranteed rate and it can't be zero */
7703 min_rate = mqprio_qopt->min_rate[i];
7704 min_rate = div_u64(min_rate, ICE_BW_KBPS_DIVISOR);
7705 sum_min_rate += min_rate;
7707 if (min_rate && min_rate < ICE_MIN_BW_LIMIT) {
7708 dev_err(dev, "TC%d: min_rate(%llu Kbps) < %u Kbps\n", i,
7709 min_rate, ICE_MIN_BW_LIMIT);
7713 iter_div_u64_rem(min_rate, ICE_MIN_BW_LIMIT, &rem);
7715 dev_err(dev, "TC%d: Min Rate not multiple of %u Kbps",
7716 i, ICE_MIN_BW_LIMIT);
7720 iter_div_u64_rem(max_rate, ICE_MIN_BW_LIMIT, &rem);
7722 dev_err(dev, "TC%d: Max Rate not multiple of %u Kbps",
7723 i, ICE_MIN_BW_LIMIT);
7727 /* min_rate can't be more than max_rate, except when max_rate
7728 * is zero (implies max_rate sought is max line rate). In such
7729 * a case min_rate can be more than max.
7731 if (max_rate && min_rate > max_rate) {
7732 dev_err(dev, "min_rate %llu Kbps can't be more than max_rate %llu Kbps\n",
7733 min_rate, max_rate);
7737 if (i >= mqprio_qopt->qopt.num_tc - 1)
7739 if (mqprio_qopt->qopt.offset[i + 1] !=
7740 (mqprio_qopt->qopt.offset[i] + qcount))
7744 (mqprio_qopt->qopt.offset[i] + mqprio_qopt->qopt.count[i]))
7747 (mqprio_qopt->qopt.offset[i] + mqprio_qopt->qopt.count[i]))
7750 speed = ice_get_link_speed_kbps(vsi);
7751 if (sum_max_rate && sum_max_rate > (u64)speed) {
7752 dev_err(dev, "Invalid max Tx rate(%llu) Kbps > speed(%u) Kbps specified\n",
7753 sum_max_rate, speed);
7756 if (sum_min_rate && sum_min_rate > (u64)speed) {
7757 dev_err(dev, "Invalid min Tx rate(%llu) Kbps > speed (%u) Kbps specified\n",
7758 sum_min_rate, speed);
7762 /* make sure vsi->ch_rss_size is set correctly based on TC's qcount */
7763 vsi->ch_rss_size = max_rss_q_cnt;
7769 * ice_add_vsi_to_fdir - add a VSI to the flow director group for PF
7770 * @pf: ptr to PF device
7773 static int ice_add_vsi_to_fdir(struct ice_pf *pf, struct ice_vsi *vsi)
7775 struct device *dev = ice_pf_to_dev(pf);
7780 if (!(vsi->num_gfltr || vsi->num_bfltr))
7784 for (flow = 0; flow < ICE_FLTR_PTYPE_MAX; flow++) {
7785 struct ice_fd_hw_prof *prof;
7789 if (!(hw->fdir_prof && hw->fdir_prof[flow] &&
7790 hw->fdir_prof[flow]->cnt))
7793 for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) {
7794 enum ice_flow_priority prio;
7797 /* add this VSI to FDir profile for this flow */
7798 prio = ICE_FLOW_PRIO_NORMAL;
7799 prof = hw->fdir_prof[flow];
7800 prof_id = flow + tun * ICE_FLTR_PTYPE_MAX;
7801 status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id,
7802 prof->vsi_h[0], vsi->idx,
7803 prio, prof->fdir_seg[tun],
7806 dev_err(dev, "channel VSI idx %d, not able to add to group %d\n",
7811 prof->entry_h[prof->cnt][tun] = entry_h;
7814 /* store VSI for filter replay and delete */
7815 prof->vsi_h[prof->cnt] = vsi->idx;
7819 dev_dbg(dev, "VSI idx %d added to fdir group %d\n", vsi->idx,
7824 dev_dbg(dev, "VSI idx %d not added to fdir groups\n", vsi->idx);
7830 * ice_add_channel - add a channel by adding VSI
7831 * @pf: ptr to PF device
7832 * @sw_id: underlying HW switching element ID
7833 * @ch: ptr to channel structure
7835 * Add a channel (VSI) using add_vsi and queue_map
7837 static int ice_add_channel(struct ice_pf *pf, u16 sw_id, struct ice_channel *ch)
7839 struct device *dev = ice_pf_to_dev(pf);
7840 struct ice_vsi *vsi;
7842 if (ch->type != ICE_VSI_CHNL) {
7843 dev_err(dev, "add new VSI failed, ch->type %d\n", ch->type);
7847 vsi = ice_chnl_vsi_setup(pf, pf->hw.port_info, ch);
7848 if (!vsi || vsi->type != ICE_VSI_CHNL) {
7849 dev_err(dev, "create chnl VSI failure\n");
7853 ice_add_vsi_to_fdir(pf, vsi);
7856 ch->vsi_num = vsi->vsi_num;
7857 ch->info.mapping_flags = vsi->info.mapping_flags;
7859 /* set the back pointer of channel for newly created VSI */
7862 memcpy(&ch->info.q_mapping, &vsi->info.q_mapping,
7863 sizeof(vsi->info.q_mapping));
7864 memcpy(&ch->info.tc_mapping, vsi->info.tc_mapping,
7865 sizeof(vsi->info.tc_mapping));
7872 * @vsi: the VSI being setup
7873 * @ch: ptr to channel structure
7875 * Configure channel specific resources such as rings, vector.
7877 static void ice_chnl_cfg_res(struct ice_vsi *vsi, struct ice_channel *ch)
7881 for (i = 0; i < ch->num_txq; i++) {
7882 struct ice_q_vector *tx_q_vector, *rx_q_vector;
7883 struct ice_ring_container *rc;
7884 struct ice_tx_ring *tx_ring;
7885 struct ice_rx_ring *rx_ring;
7887 tx_ring = vsi->tx_rings[ch->base_q + i];
7888 rx_ring = vsi->rx_rings[ch->base_q + i];
7889 if (!tx_ring || !rx_ring)
7892 /* setup ring being channel enabled */
7896 /* following code block sets up vector specific attributes */
7897 tx_q_vector = tx_ring->q_vector;
7898 rx_q_vector = rx_ring->q_vector;
7899 if (!tx_q_vector && !rx_q_vector)
7903 tx_q_vector->ch = ch;
7904 /* setup Tx and Rx ITR setting if DIM is off */
7905 rc = &tx_q_vector->tx;
7906 if (!ITR_IS_DYNAMIC(rc))
7907 ice_write_itr(rc, rc->itr_setting);
7910 rx_q_vector->ch = ch;
7911 /* setup Tx and Rx ITR setting if DIM is off */
7912 rc = &rx_q_vector->rx;
7913 if (!ITR_IS_DYNAMIC(rc))
7914 ice_write_itr(rc, rc->itr_setting);
7918 /* it is safe to assume that, if channel has non-zero num_t[r]xq, then
7919 * GLINT_ITR register would have written to perform in-context
7920 * update, hence perform flush
7922 if (ch->num_txq || ch->num_rxq)
7923 ice_flush(&vsi->back->hw);
7927 * ice_cfg_chnl_all_res - configure channel resources
7928 * @vsi: pte to main_vsi
7929 * @ch: ptr to channel structure
7931 * This function configures channel specific resources such as flow-director
7932 * counter index, and other resources such as queues, vectors, ITR settings
7935 ice_cfg_chnl_all_res(struct ice_vsi *vsi, struct ice_channel *ch)
7937 /* configure channel (aka ADQ) resources such as queues, vectors,
7938 * ITR settings for channel specific vectors and anything else
7940 ice_chnl_cfg_res(vsi, ch);
7944 * ice_setup_hw_channel - setup new channel
7945 * @pf: ptr to PF device
7946 * @vsi: the VSI being setup
7947 * @ch: ptr to channel structure
7948 * @sw_id: underlying HW switching element ID
7949 * @type: type of channel to be created (VMDq2/VF)
7951 * Setup new channel (VSI) based on specified type (VMDq2/VF)
7952 * and configures Tx rings accordingly
7955 ice_setup_hw_channel(struct ice_pf *pf, struct ice_vsi *vsi,
7956 struct ice_channel *ch, u16 sw_id, u8 type)
7958 struct device *dev = ice_pf_to_dev(pf);
7961 ch->base_q = vsi->next_base_q;
7964 ret = ice_add_channel(pf, sw_id, ch);
7966 dev_err(dev, "failed to add_channel using sw_id %u\n", sw_id);
7970 /* configure/setup ADQ specific resources */
7971 ice_cfg_chnl_all_res(vsi, ch);
7973 /* make sure to update the next_base_q so that subsequent channel's
7974 * (aka ADQ) VSI queue map is correct
7976 vsi->next_base_q = vsi->next_base_q + ch->num_rxq;
7977 dev_dbg(dev, "added channel: vsi_num %u, num_rxq %u\n", ch->vsi_num,
7984 * ice_setup_channel - setup new channel using uplink element
7985 * @pf: ptr to PF device
7986 * @vsi: the VSI being setup
7987 * @ch: ptr to channel structure
7989 * Setup new channel (VSI) based on specified type (VMDq2/VF)
7990 * and uplink switching element
7993 ice_setup_channel(struct ice_pf *pf, struct ice_vsi *vsi,
7994 struct ice_channel *ch)
7996 struct device *dev = ice_pf_to_dev(pf);
8000 if (vsi->type != ICE_VSI_PF) {
8001 dev_err(dev, "unsupported parent VSI type(%d)\n", vsi->type);
8005 sw_id = pf->first_sw->sw_id;
8007 /* create channel (VSI) */
8008 ret = ice_setup_hw_channel(pf, vsi, ch, sw_id, ICE_VSI_CHNL);
8010 dev_err(dev, "failed to setup hw_channel\n");
8013 dev_dbg(dev, "successfully created channel()\n");
8015 return ch->ch_vsi ? true : false;
8019 * ice_set_bw_limit - setup BW limit for Tx traffic based on max_tx_rate
8020 * @vsi: VSI to be configured
8021 * @max_tx_rate: max Tx rate in Kbps to be configured as maximum BW limit
8022 * @min_tx_rate: min Tx rate in Kbps to be configured as minimum BW limit
8025 ice_set_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate, u64 min_tx_rate)
8029 err = ice_set_min_bw_limit(vsi, min_tx_rate);
8033 return ice_set_max_bw_limit(vsi, max_tx_rate);
8037 * ice_create_q_channel - function to create channel
8038 * @vsi: VSI to be configured
8039 * @ch: ptr to channel (it contains channel specific params)
8041 * This function creates channel (VSI) using num_queues specified by user,
8042 * reconfigs RSS if needed.
8044 static int ice_create_q_channel(struct ice_vsi *vsi, struct ice_channel *ch)
8046 struct ice_pf *pf = vsi->back;
8052 dev = ice_pf_to_dev(pf);
8053 if (!ch->num_txq || !ch->num_rxq) {
8054 dev_err(dev, "Invalid num_queues requested: %d\n", ch->num_rxq);
8058 if (!vsi->cnt_q_avail || vsi->cnt_q_avail < ch->num_txq) {
8059 dev_err(dev, "cnt_q_avail (%u) less than num_queues %d\n",
8060 vsi->cnt_q_avail, ch->num_txq);
8064 if (!ice_setup_channel(pf, vsi, ch)) {
8065 dev_info(dev, "Failed to setup channel\n");
8068 /* configure BW rate limit */
8069 if (ch->ch_vsi && (ch->max_tx_rate || ch->min_tx_rate)) {
8072 ret = ice_set_bw_limit(ch->ch_vsi, ch->max_tx_rate,
8075 dev_err(dev, "failed to set Tx rate of %llu Kbps for VSI(%u)\n",
8076 ch->max_tx_rate, ch->ch_vsi->vsi_num);
8078 dev_dbg(dev, "set Tx rate of %llu Kbps for VSI(%u)\n",
8079 ch->max_tx_rate, ch->ch_vsi->vsi_num);
8082 vsi->cnt_q_avail -= ch->num_txq;
8088 * ice_rem_all_chnl_fltrs - removes all channel filters
8089 * @pf: ptr to PF, TC-flower based filter are tracked at PF level
8091 * Remove all advanced switch filters only if they are channel specific
8092 * tc-flower based filter
8094 static void ice_rem_all_chnl_fltrs(struct ice_pf *pf)
8096 struct ice_tc_flower_fltr *fltr;
8097 struct hlist_node *node;
8099 /* to remove all channel filters, iterate an ordered list of filters */
8100 hlist_for_each_entry_safe(fltr, node,
8101 &pf->tc_flower_fltr_list,
8103 struct ice_rule_query_data rule;
8106 /* for now process only channel specific filters */
8107 if (!ice_is_chnl_fltr(fltr))
8110 rule.rid = fltr->rid;
8111 rule.rule_id = fltr->rule_id;
8112 rule.vsi_handle = fltr->dest_id;
8113 status = ice_rem_adv_rule_by_id(&pf->hw, &rule);
8115 if (status == -ENOENT)
8116 dev_dbg(ice_pf_to_dev(pf), "TC flower filter (rule_id %u) does not exist\n",
8119 dev_err(ice_pf_to_dev(pf), "failed to delete TC flower filter, status %d\n",
8121 } else if (fltr->dest_vsi) {
8122 /* update advanced switch filter count */
8123 if (fltr->dest_vsi->type == ICE_VSI_CHNL) {
8124 u32 flags = fltr->flags;
8126 fltr->dest_vsi->num_chnl_fltr--;
8127 if (flags & (ICE_TC_FLWR_FIELD_DST_MAC |
8128 ICE_TC_FLWR_FIELD_ENC_DST_MAC))
8129 pf->num_dmac_chnl_fltrs--;
8133 hlist_del(&fltr->tc_flower_node);
8139 * ice_remove_q_channels - Remove queue channels for the TCs
8140 * @vsi: VSI to be configured
8141 * @rem_fltr: delete advanced switch filter or not
8143 * Remove queue channels for the TCs
8145 static void ice_remove_q_channels(struct ice_vsi *vsi, bool rem_fltr)
8147 struct ice_channel *ch, *ch_tmp;
8148 struct ice_pf *pf = vsi->back;
8151 /* remove all tc-flower based filter if they are channel filters only */
8153 ice_rem_all_chnl_fltrs(pf);
8155 /* remove ntuple filters since queue configuration is being changed */
8156 if (vsi->netdev->features & NETIF_F_NTUPLE) {
8157 struct ice_hw *hw = &pf->hw;
8159 mutex_lock(&hw->fdir_fltr_lock);
8160 ice_fdir_del_all_fltrs(vsi);
8161 mutex_unlock(&hw->fdir_fltr_lock);
8164 /* perform cleanup for channels if they exist */
8165 list_for_each_entry_safe(ch, ch_tmp, &vsi->ch_list, list) {
8166 struct ice_vsi *ch_vsi;
8168 list_del(&ch->list);
8169 ch_vsi = ch->ch_vsi;
8175 /* Reset queue contexts */
8176 for (i = 0; i < ch->num_rxq; i++) {
8177 struct ice_tx_ring *tx_ring;
8178 struct ice_rx_ring *rx_ring;
8180 tx_ring = vsi->tx_rings[ch->base_q + i];
8181 rx_ring = vsi->rx_rings[ch->base_q + i];
8184 if (tx_ring->q_vector)
8185 tx_ring->q_vector->ch = NULL;
8189 if (rx_ring->q_vector)
8190 rx_ring->q_vector->ch = NULL;
8194 /* Release FD resources for the channel VSI */
8195 ice_fdir_rem_adq_chnl(&pf->hw, ch->ch_vsi->idx);
8197 /* clear the VSI from scheduler tree */
8198 ice_rm_vsi_lan_cfg(ch->ch_vsi->port_info, ch->ch_vsi->idx);
8200 /* Delete VSI from FW */
8201 ice_vsi_delete(ch->ch_vsi);
8203 /* Delete VSI from PF and HW VSI arrays */
8204 ice_vsi_clear(ch->ch_vsi);
8206 /* free the channel */
8210 /* clear the channel VSI map which is stored in main VSI */
8211 ice_for_each_chnl_tc(i)
8212 vsi->tc_map_vsi[i] = NULL;
8214 /* reset main VSI's all TC information */
8220 * ice_rebuild_channels - rebuild channel
8223 * Recreate channel VSIs and replay filters
8225 static int ice_rebuild_channels(struct ice_pf *pf)
8227 struct device *dev = ice_pf_to_dev(pf);
8228 struct ice_vsi *main_vsi;
8229 bool rem_adv_fltr = true;
8230 struct ice_channel *ch;
8231 struct ice_vsi *vsi;
8235 main_vsi = ice_get_main_vsi(pf);
8239 if (!test_bit(ICE_FLAG_TC_MQPRIO, pf->flags) ||
8240 main_vsi->old_numtc == 1)
8241 return 0; /* nothing to be done */
8243 /* reconfigure main VSI based on old value of TC and cached values
8246 err = ice_vsi_cfg_tc(main_vsi, main_vsi->old_ena_tc);
8248 dev_err(dev, "failed configuring TC(ena_tc:0x%02x) for HW VSI=%u\n",
8249 main_vsi->old_ena_tc, main_vsi->vsi_num);
8253 /* rebuild ADQ VSIs */
8254 ice_for_each_vsi(pf, i) {
8255 enum ice_vsi_type type;
8258 if (!vsi || vsi->type != ICE_VSI_CHNL)
8263 /* rebuild ADQ VSI */
8264 err = ice_vsi_rebuild(vsi, true);
8266 dev_err(dev, "VSI (type:%s) at index %d rebuild failed, err %d\n",
8267 ice_vsi_type_str(type), vsi->idx, err);
8271 /* Re-map HW VSI number, using VSI handle that has been
8272 * previously validated in ice_replay_vsi() call above
8274 vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx);
8276 /* replay filters for the VSI */
8277 err = ice_replay_vsi(&pf->hw, vsi->idx);
8279 dev_err(dev, "VSI (type:%s) replay failed, err %d, VSI index %d\n",
8280 ice_vsi_type_str(type), err, vsi->idx);
8281 rem_adv_fltr = false;
8284 dev_info(dev, "VSI (type:%s) at index %d rebuilt successfully\n",
8285 ice_vsi_type_str(type), vsi->idx);
8287 /* store ADQ VSI at correct TC index in main VSI's
8290 main_vsi->tc_map_vsi[tc_idx++] = vsi;
8293 /* ADQ VSI(s) has been rebuilt successfully, so setup
8294 * channel for main VSI's Tx and Rx rings
8296 list_for_each_entry(ch, &main_vsi->ch_list, list) {
8297 struct ice_vsi *ch_vsi;
8299 ch_vsi = ch->ch_vsi;
8303 /* reconfig channel resources */
8304 ice_cfg_chnl_all_res(main_vsi, ch);
8306 /* replay BW rate limit if it is non-zero */
8307 if (!ch->max_tx_rate && !ch->min_tx_rate)
8310 err = ice_set_bw_limit(ch_vsi, ch->max_tx_rate,
8313 dev_err(dev, "failed (err:%d) to rebuild BW rate limit, max_tx_rate: %llu Kbps, min_tx_rate: %llu Kbps for VSI(%u)\n",
8314 err, ch->max_tx_rate, ch->min_tx_rate,
8317 dev_dbg(dev, "successfully rebuild BW rate limit, max_tx_rate: %llu Kbps, min_tx_rate: %llu Kbps for VSI(%u)\n",
8318 ch->max_tx_rate, ch->min_tx_rate,
8322 /* reconfig RSS for main VSI */
8323 if (main_vsi->ch_rss_size)
8324 ice_vsi_cfg_rss_lut_key(main_vsi);
8329 ice_remove_q_channels(main_vsi, rem_adv_fltr);
8334 * ice_create_q_channels - Add queue channel for the given TCs
8335 * @vsi: VSI to be configured
8337 * Configures queue channel mapping to the given TCs
8339 static int ice_create_q_channels(struct ice_vsi *vsi)
8341 struct ice_pf *pf = vsi->back;
8342 struct ice_channel *ch;
8345 ice_for_each_chnl_tc(i) {
8346 if (!(vsi->all_enatc & BIT(i)))
8349 ch = kzalloc(sizeof(*ch), GFP_KERNEL);
8354 INIT_LIST_HEAD(&ch->list);
8355 ch->num_rxq = vsi->mqprio_qopt.qopt.count[i];
8356 ch->num_txq = vsi->mqprio_qopt.qopt.count[i];
8357 ch->base_q = vsi->mqprio_qopt.qopt.offset[i];
8358 ch->max_tx_rate = vsi->mqprio_qopt.max_rate[i];
8359 ch->min_tx_rate = vsi->mqprio_qopt.min_rate[i];
8361 /* convert to Kbits/s */
8362 if (ch->max_tx_rate)
8363 ch->max_tx_rate = div_u64(ch->max_tx_rate,
8364 ICE_BW_KBPS_DIVISOR);
8365 if (ch->min_tx_rate)
8366 ch->min_tx_rate = div_u64(ch->min_tx_rate,
8367 ICE_BW_KBPS_DIVISOR);
8369 ret = ice_create_q_channel(vsi, ch);
8371 dev_err(ice_pf_to_dev(pf),
8372 "failed creating channel TC:%d\n", i);
8376 list_add_tail(&ch->list, &vsi->ch_list);
8377 vsi->tc_map_vsi[i] = ch->ch_vsi;
8378 dev_dbg(ice_pf_to_dev(pf),
8379 "successfully created channel: VSI %pK\n", ch->ch_vsi);
8384 ice_remove_q_channels(vsi, false);
8390 * ice_setup_tc_mqprio_qdisc - configure multiple traffic classes
8391 * @netdev: net device to configure
8392 * @type_data: TC offload data
8394 static int ice_setup_tc_mqprio_qdisc(struct net_device *netdev, void *type_data)
8396 struct tc_mqprio_qopt_offload *mqprio_qopt = type_data;
8397 struct ice_netdev_priv *np = netdev_priv(netdev);
8398 struct ice_vsi *vsi = np->vsi;
8399 struct ice_pf *pf = vsi->back;
8400 u16 mode, ena_tc_qdisc = 0;
8401 int cur_txq, cur_rxq;
8406 dev = ice_pf_to_dev(pf);
8407 num_tcf = mqprio_qopt->qopt.num_tc;
8408 hw = mqprio_qopt->qopt.hw;
8409 mode = mqprio_qopt->mode;
8411 clear_bit(ICE_FLAG_TC_MQPRIO, pf->flags);
8412 vsi->ch_rss_size = 0;
8413 memcpy(&vsi->mqprio_qopt, mqprio_qopt, sizeof(*mqprio_qopt));
8417 /* Generate queue region map for number of TCF requested */
8418 for (i = 0; i < num_tcf; i++)
8419 ena_tc_qdisc |= BIT(i);
8422 case TC_MQPRIO_MODE_CHANNEL:
8424 ret = ice_validate_mqprio_qopt(vsi, mqprio_qopt);
8426 netdev_err(netdev, "failed to validate_mqprio_qopt(), ret %d\n",
8430 memcpy(&vsi->mqprio_qopt, mqprio_qopt, sizeof(*mqprio_qopt));
8431 set_bit(ICE_FLAG_TC_MQPRIO, pf->flags);
8432 /* don't assume state of hw_tc_offload during driver load
8433 * and set the flag for TC flower filter if hw_tc_offload
8436 if (vsi->netdev->features & NETIF_F_HW_TC)
8437 set_bit(ICE_FLAG_CLS_FLOWER, pf->flags);
8445 /* Requesting same TCF configuration as already enabled */
8446 if (ena_tc_qdisc == vsi->tc_cfg.ena_tc &&
8447 mode != TC_MQPRIO_MODE_CHANNEL)
8450 /* Pause VSI queues */
8451 ice_dis_vsi(vsi, true);
8453 if (!hw && !test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))
8454 ice_remove_q_channels(vsi, true);
8456 if (!hw && !test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) {
8457 vsi->req_txq = min_t(int, ice_get_avail_txq_count(pf),
8459 vsi->req_rxq = min_t(int, ice_get_avail_rxq_count(pf),
8462 /* logic to rebuild VSI, same like ethtool -L */
8463 u16 offset = 0, qcount_tx = 0, qcount_rx = 0;
8465 for (i = 0; i < num_tcf; i++) {
8466 if (!(ena_tc_qdisc & BIT(i)))
8469 offset = vsi->mqprio_qopt.qopt.offset[i];
8470 qcount_rx = vsi->mqprio_qopt.qopt.count[i];
8471 qcount_tx = vsi->mqprio_qopt.qopt.count[i];
8473 vsi->req_txq = offset + qcount_tx;
8474 vsi->req_rxq = offset + qcount_rx;
8476 /* store away original rss_size info, so that it gets reused
8477 * form ice_vsi_rebuild during tc-qdisc delete stage - to
8478 * determine, what should be the rss_sizefor main VSI
8480 vsi->orig_rss_size = vsi->rss_size;
8483 /* save current values of Tx and Rx queues before calling VSI rebuild
8484 * for fallback option
8486 cur_txq = vsi->num_txq;
8487 cur_rxq = vsi->num_rxq;
8489 /* proceed with rebuild main VSI using correct number of queues */
8490 ret = ice_vsi_rebuild(vsi, false);
8492 /* fallback to current number of queues */
8493 dev_info(dev, "Rebuild failed with new queues, try with current number of queues\n");
8494 vsi->req_txq = cur_txq;
8495 vsi->req_rxq = cur_rxq;
8496 clear_bit(ICE_RESET_FAILED, pf->state);
8497 if (ice_vsi_rebuild(vsi, false)) {
8498 dev_err(dev, "Rebuild of main VSI failed again\n");
8503 vsi->all_numtc = num_tcf;
8504 vsi->all_enatc = ena_tc_qdisc;
8505 ret = ice_vsi_cfg_tc(vsi, ena_tc_qdisc);
8507 netdev_err(netdev, "failed configuring TC for VSI id=%d\n",
8512 if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) {
8513 u64 max_tx_rate = vsi->mqprio_qopt.max_rate[0];
8514 u64 min_tx_rate = vsi->mqprio_qopt.min_rate[0];
8516 /* set TC0 rate limit if specified */
8517 if (max_tx_rate || min_tx_rate) {
8518 /* convert to Kbits/s */
8520 max_tx_rate = div_u64(max_tx_rate, ICE_BW_KBPS_DIVISOR);
8522 min_tx_rate = div_u64(min_tx_rate, ICE_BW_KBPS_DIVISOR);
8524 ret = ice_set_bw_limit(vsi, max_tx_rate, min_tx_rate);
8526 dev_dbg(dev, "set Tx rate max %llu min %llu for VSI(%u)\n",
8527 max_tx_rate, min_tx_rate, vsi->vsi_num);
8529 dev_err(dev, "failed to set Tx rate max %llu min %llu for VSI(%u)\n",
8530 max_tx_rate, min_tx_rate, vsi->vsi_num);
8534 ret = ice_create_q_channels(vsi);
8536 netdev_err(netdev, "failed configuring queue channels\n");
8539 netdev_dbg(netdev, "successfully configured channels\n");
8543 if (vsi->ch_rss_size)
8544 ice_vsi_cfg_rss_lut_key(vsi);
8547 /* if error, reset the all_numtc and all_enatc */
8553 ice_ena_vsi(vsi, true);
8558 static LIST_HEAD(ice_block_cb_list);
8561 ice_setup_tc(struct net_device *netdev, enum tc_setup_type type,
8564 struct ice_netdev_priv *np = netdev_priv(netdev);
8565 struct ice_pf *pf = np->vsi->back;
8569 case TC_SETUP_BLOCK:
8570 return flow_block_cb_setup_simple(type_data,
8572 ice_setup_tc_block_cb,
8574 case TC_SETUP_QDISC_MQPRIO:
8575 /* setup traffic classifier for receive side */
8576 mutex_lock(&pf->tc_mutex);
8577 err = ice_setup_tc_mqprio_qdisc(netdev, type_data);
8578 mutex_unlock(&pf->tc_mutex);
8586 static struct ice_indr_block_priv *
8587 ice_indr_block_priv_lookup(struct ice_netdev_priv *np,
8588 struct net_device *netdev)
8590 struct ice_indr_block_priv *cb_priv;
8592 list_for_each_entry(cb_priv, &np->tc_indr_block_priv_list, list) {
8593 if (!cb_priv->netdev)
8595 if (cb_priv->netdev == netdev)
8602 ice_indr_setup_block_cb(enum tc_setup_type type, void *type_data,
8605 struct ice_indr_block_priv *priv = indr_priv;
8606 struct ice_netdev_priv *np = priv->np;
8609 case TC_SETUP_CLSFLOWER:
8610 return ice_setup_tc_cls_flower(np, priv->netdev,
8611 (struct flow_cls_offload *)
8619 ice_indr_setup_tc_block(struct net_device *netdev, struct Qdisc *sch,
8620 struct ice_netdev_priv *np,
8621 struct flow_block_offload *f, void *data,
8622 void (*cleanup)(struct flow_block_cb *block_cb))
8624 struct ice_indr_block_priv *indr_priv;
8625 struct flow_block_cb *block_cb;
8627 if (!ice_is_tunnel_supported(netdev) &&
8628 !(is_vlan_dev(netdev) &&
8629 vlan_dev_real_dev(netdev) == np->vsi->netdev))
8632 if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
8635 switch (f->command) {
8636 case FLOW_BLOCK_BIND:
8637 indr_priv = ice_indr_block_priv_lookup(np, netdev);
8641 indr_priv = kzalloc(sizeof(*indr_priv), GFP_KERNEL);
8645 indr_priv->netdev = netdev;
8647 list_add(&indr_priv->list, &np->tc_indr_block_priv_list);
8650 flow_indr_block_cb_alloc(ice_indr_setup_block_cb,
8651 indr_priv, indr_priv,
8652 ice_rep_indr_tc_block_unbind,
8653 f, netdev, sch, data, np,
8656 if (IS_ERR(block_cb)) {
8657 list_del(&indr_priv->list);
8659 return PTR_ERR(block_cb);
8661 flow_block_cb_add(block_cb, f);
8662 list_add_tail(&block_cb->driver_list, &ice_block_cb_list);
8664 case FLOW_BLOCK_UNBIND:
8665 indr_priv = ice_indr_block_priv_lookup(np, netdev);
8669 block_cb = flow_block_cb_lookup(f->block,
8670 ice_indr_setup_block_cb,
8675 flow_indr_block_cb_remove(block_cb, f);
8677 list_del(&block_cb->driver_list);
8686 ice_indr_setup_tc_cb(struct net_device *netdev, struct Qdisc *sch,
8687 void *cb_priv, enum tc_setup_type type, void *type_data,
8689 void (*cleanup)(struct flow_block_cb *block_cb))
8692 case TC_SETUP_BLOCK:
8693 return ice_indr_setup_tc_block(netdev, sch, cb_priv, type_data,
8702 * ice_open - Called when a network interface becomes active
8703 * @netdev: network interface device structure
8705 * The open entry point is called when a network interface is made
8706 * active by the system (IFF_UP). At this point all resources needed
8707 * for transmit and receive operations are allocated, the interrupt
8708 * handler is registered with the OS, the netdev watchdog is enabled,
8709 * and the stack is notified that the interface is ready.
8711 * Returns 0 on success, negative value on failure
8713 int ice_open(struct net_device *netdev)
8715 struct ice_netdev_priv *np = netdev_priv(netdev);
8716 struct ice_pf *pf = np->vsi->back;
8718 if (ice_is_reset_in_progress(pf->state)) {
8719 netdev_err(netdev, "can't open net device while reset is in progress");
8723 return ice_open_internal(netdev);
8727 * ice_open_internal - Called when a network interface becomes active
8728 * @netdev: network interface device structure
8730 * Internal ice_open implementation. Should not be used directly except for ice_open and reset
8733 * Returns 0 on success, negative value on failure
8735 int ice_open_internal(struct net_device *netdev)
8737 struct ice_netdev_priv *np = netdev_priv(netdev);
8738 struct ice_vsi *vsi = np->vsi;
8739 struct ice_pf *pf = vsi->back;
8740 struct ice_port_info *pi;
8743 if (test_bit(ICE_NEEDS_RESTART, pf->state)) {
8744 netdev_err(netdev, "driver needs to be unloaded and reloaded\n");
8748 netif_carrier_off(netdev);
8750 pi = vsi->port_info;
8751 err = ice_update_link_info(pi);
8753 netdev_err(netdev, "Failed to get link info, error %d\n", err);
8757 ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err);
8759 /* Set PHY if there is media, otherwise, turn off PHY */
8760 if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) {
8761 clear_bit(ICE_FLAG_NO_MEDIA, pf->flags);
8762 if (!test_bit(ICE_PHY_INIT_COMPLETE, pf->state)) {
8763 err = ice_init_phy_user_cfg(pi);
8765 netdev_err(netdev, "Failed to initialize PHY settings, error %d\n",
8771 err = ice_configure_phy(vsi);
8773 netdev_err(netdev, "Failed to set physical link up, error %d\n",
8778 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);
8779 ice_set_link(vsi, false);
8782 err = ice_vsi_open(vsi);
8784 netdev_err(netdev, "Failed to open VSI 0x%04X on switch 0x%04X\n",
8785 vsi->vsi_num, vsi->vsw->sw_id);
8787 /* Update existing tunnels information */
8788 udp_tunnel_get_rx_info(netdev);
8794 * ice_stop - Disables a network interface
8795 * @netdev: network interface device structure
8797 * The stop entry point is called when an interface is de-activated by the OS,
8798 * and the netdevice enters the DOWN state. The hardware is still under the
8799 * driver's control, but the netdev interface is disabled.
8801 * Returns success only - not allowed to fail
8803 int ice_stop(struct net_device *netdev)
8805 struct ice_netdev_priv *np = netdev_priv(netdev);
8806 struct ice_vsi *vsi = np->vsi;
8807 struct ice_pf *pf = vsi->back;
8809 if (ice_is_reset_in_progress(pf->state)) {
8810 netdev_err(netdev, "can't stop net device while reset is in progress");
8820 * ice_features_check - Validate encapsulated packet conforms to limits
8822 * @netdev: This port's netdev
8823 * @features: Offload features that the stack believes apply
8825 static netdev_features_t
8826 ice_features_check(struct sk_buff *skb,
8827 struct net_device __always_unused *netdev,
8828 netdev_features_t features)
8830 bool gso = skb_is_gso(skb);
8833 /* No point in doing any of this if neither checksum nor GSO are
8834 * being requested for this frame. We can rule out both by just
8835 * checking for CHECKSUM_PARTIAL
8837 if (skb->ip_summed != CHECKSUM_PARTIAL)
8840 /* We cannot support GSO if the MSS is going to be less than
8841 * 64 bytes. If it is then we need to drop support for GSO.
8843 if (gso && (skb_shinfo(skb)->gso_size < ICE_TXD_CTX_MIN_MSS))
8844 features &= ~NETIF_F_GSO_MASK;
8846 len = skb_network_offset(skb);
8847 if (len > ICE_TXD_MACLEN_MAX || len & 0x1)
8848 goto out_rm_features;
8850 len = skb_network_header_len(skb);
8851 if (len > ICE_TXD_IPLEN_MAX || len & 0x1)
8852 goto out_rm_features;
8854 if (skb->encapsulation) {
8855 /* this must work for VXLAN frames AND IPIP/SIT frames, and in
8856 * the case of IPIP frames, the transport header pointer is
8857 * after the inner header! So check to make sure that this
8858 * is a GRE or UDP_TUNNEL frame before doing that math.
8860 if (gso && (skb_shinfo(skb)->gso_type &
8861 (SKB_GSO_GRE | SKB_GSO_UDP_TUNNEL))) {
8862 len = skb_inner_network_header(skb) -
8863 skb_transport_header(skb);
8864 if (len > ICE_TXD_L4LEN_MAX || len & 0x1)
8865 goto out_rm_features;
8868 len = skb_inner_network_header_len(skb);
8869 if (len > ICE_TXD_IPLEN_MAX || len & 0x1)
8870 goto out_rm_features;
8875 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
8878 static const struct net_device_ops ice_netdev_safe_mode_ops = {
8879 .ndo_open = ice_open,
8880 .ndo_stop = ice_stop,
8881 .ndo_start_xmit = ice_start_xmit,
8882 .ndo_set_mac_address = ice_set_mac_address,
8883 .ndo_validate_addr = eth_validate_addr,
8884 .ndo_change_mtu = ice_change_mtu,
8885 .ndo_get_stats64 = ice_get_stats64,
8886 .ndo_tx_timeout = ice_tx_timeout,
8887 .ndo_bpf = ice_xdp_safe_mode,
8890 static const struct net_device_ops ice_netdev_ops = {
8891 .ndo_open = ice_open,
8892 .ndo_stop = ice_stop,
8893 .ndo_start_xmit = ice_start_xmit,
8894 .ndo_select_queue = ice_select_queue,
8895 .ndo_features_check = ice_features_check,
8896 .ndo_fix_features = ice_fix_features,
8897 .ndo_set_rx_mode = ice_set_rx_mode,
8898 .ndo_set_mac_address = ice_set_mac_address,
8899 .ndo_validate_addr = eth_validate_addr,
8900 .ndo_change_mtu = ice_change_mtu,
8901 .ndo_get_stats64 = ice_get_stats64,
8902 .ndo_set_tx_maxrate = ice_set_tx_maxrate,
8903 .ndo_eth_ioctl = ice_eth_ioctl,
8904 .ndo_set_vf_spoofchk = ice_set_vf_spoofchk,
8905 .ndo_set_vf_mac = ice_set_vf_mac,
8906 .ndo_get_vf_config = ice_get_vf_cfg,
8907 .ndo_set_vf_trust = ice_set_vf_trust,
8908 .ndo_set_vf_vlan = ice_set_vf_port_vlan,
8909 .ndo_set_vf_link_state = ice_set_vf_link_state,
8910 .ndo_get_vf_stats = ice_get_vf_stats,
8911 .ndo_set_vf_rate = ice_set_vf_bw,
8912 .ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid,
8913 .ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid,
8914 .ndo_setup_tc = ice_setup_tc,
8915 .ndo_set_features = ice_set_features,
8916 .ndo_bridge_getlink = ice_bridge_getlink,
8917 .ndo_bridge_setlink = ice_bridge_setlink,
8918 .ndo_fdb_add = ice_fdb_add,
8919 .ndo_fdb_del = ice_fdb_del,
8920 #ifdef CONFIG_RFS_ACCEL
8921 .ndo_rx_flow_steer = ice_rx_flow_steer,
8923 .ndo_tx_timeout = ice_tx_timeout,
8925 .ndo_xdp_xmit = ice_xdp_xmit,
8926 .ndo_xsk_wakeup = ice_xsk_wakeup,