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"
17 #define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver"
18 static const char ice_driver_string[] = DRV_SUMMARY;
19 static const char ice_copyright[] = "Copyright (c) 2018, Intel Corporation.";
21 /* DDP Package file located in firmware search paths (e.g. /lib/firmware/) */
22 #define ICE_DDP_PKG_PATH "intel/ice/ddp/"
23 #define ICE_DDP_PKG_FILE ICE_DDP_PKG_PATH "ice.pkg"
25 MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
26 MODULE_DESCRIPTION(DRV_SUMMARY);
27 MODULE_LICENSE("GPL v2");
28 MODULE_FIRMWARE(ICE_DDP_PKG_FILE);
30 static int debug = -1;
31 module_param(debug, int, 0644);
32 #ifndef CONFIG_DYNAMIC_DEBUG
33 MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all), hw debug_mask (0x8XXXXXXX)");
35 MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)");
36 #endif /* !CONFIG_DYNAMIC_DEBUG */
38 static struct workqueue_struct *ice_wq;
39 static const struct net_device_ops ice_netdev_safe_mode_ops;
40 static const struct net_device_ops ice_netdev_ops;
41 static int ice_vsi_open(struct ice_vsi *vsi);
43 static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type);
45 static void ice_vsi_release_all(struct ice_pf *pf);
47 bool netif_is_ice(struct net_device *dev)
49 return dev && (dev->netdev_ops == &ice_netdev_ops);
53 * ice_get_tx_pending - returns number of Tx descriptors not processed
54 * @ring: the ring of descriptors
56 static u16 ice_get_tx_pending(struct ice_ring *ring)
60 head = ring->next_to_clean;
61 tail = ring->next_to_use;
64 return (head < tail) ?
65 tail - head : (tail + ring->count - head);
70 * ice_check_for_hang_subtask - check for and recover hung queues
71 * @pf: pointer to PF struct
73 static void ice_check_for_hang_subtask(struct ice_pf *pf)
75 struct ice_vsi *vsi = NULL;
81 ice_for_each_vsi(pf, v)
82 if (pf->vsi[v] && pf->vsi[v]->type == ICE_VSI_PF) {
87 if (!vsi || test_bit(ICE_VSI_DOWN, vsi->state))
90 if (!(vsi->netdev && netif_carrier_ok(vsi->netdev)))
95 for (i = 0; i < vsi->num_txq; i++) {
96 struct ice_ring *tx_ring = vsi->tx_rings[i];
98 if (tx_ring && tx_ring->desc) {
99 /* If packet counter has not changed the queue is
100 * likely stalled, so force an interrupt for this
103 * prev_pkt would be negative if there was no
106 packets = tx_ring->stats.pkts & INT_MAX;
107 if (tx_ring->tx_stats.prev_pkt == packets) {
108 /* Trigger sw interrupt to revive the queue */
109 ice_trigger_sw_intr(hw, tx_ring->q_vector);
113 /* Memory barrier between read of packet count and call
114 * to ice_get_tx_pending()
117 tx_ring->tx_stats.prev_pkt =
118 ice_get_tx_pending(tx_ring) ? packets : -1;
124 * ice_init_mac_fltr - Set initial MAC filters
125 * @pf: board private structure
127 * Set initial set of MAC filters for PF VSI; configure filters for permanent
128 * address and broadcast address. If an error is encountered, netdevice will be
131 static int ice_init_mac_fltr(struct ice_pf *pf)
133 enum ice_status status;
137 vsi = ice_get_main_vsi(pf);
141 perm_addr = vsi->port_info->mac.perm_addr;
142 status = ice_fltr_add_mac_and_broadcast(vsi, perm_addr, ICE_FWD_TO_VSI);
150 * ice_add_mac_to_sync_list - creates list of MAC addresses to be synced
151 * @netdev: the net device on which the sync is happening
152 * @addr: MAC address to sync
154 * This is a callback function which is called by the in kernel device sync
155 * functions (like __dev_uc_sync, __dev_mc_sync, etc). This function only
156 * populates the tmp_sync_list, which is later used by ice_add_mac to add the
157 * MAC filters from the hardware.
159 static int ice_add_mac_to_sync_list(struct net_device *netdev, const u8 *addr)
161 struct ice_netdev_priv *np = netdev_priv(netdev);
162 struct ice_vsi *vsi = np->vsi;
164 if (ice_fltr_add_mac_to_list(vsi, &vsi->tmp_sync_list, addr,
172 * ice_add_mac_to_unsync_list - creates list of MAC addresses to be unsynced
173 * @netdev: the net device on which the unsync is happening
174 * @addr: MAC address to unsync
176 * This is a callback function which is called by the in kernel device unsync
177 * functions (like __dev_uc_unsync, __dev_mc_unsync, etc). This function only
178 * populates the tmp_unsync_list, which is later used by ice_remove_mac to
179 * delete the MAC filters from the hardware.
181 static int ice_add_mac_to_unsync_list(struct net_device *netdev, const u8 *addr)
183 struct ice_netdev_priv *np = netdev_priv(netdev);
184 struct ice_vsi *vsi = np->vsi;
186 if (ice_fltr_add_mac_to_list(vsi, &vsi->tmp_unsync_list, addr,
194 * ice_vsi_fltr_changed - check if filter state changed
195 * @vsi: VSI to be checked
197 * returns true if filter state has changed, false otherwise.
199 static bool ice_vsi_fltr_changed(struct ice_vsi *vsi)
201 return test_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state) ||
202 test_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state) ||
203 test_bit(ICE_VSI_VLAN_FLTR_CHANGED, vsi->state);
207 * ice_cfg_promisc - Enable or disable promiscuous mode for a given PF
208 * @vsi: the VSI being configured
209 * @promisc_m: mask of promiscuous config bits
210 * @set_promisc: enable or disable promisc flag request
213 static int ice_cfg_promisc(struct ice_vsi *vsi, u8 promisc_m, bool set_promisc)
215 struct ice_hw *hw = &vsi->back->hw;
216 enum ice_status status = 0;
218 if (vsi->type != ICE_VSI_PF)
221 if (vsi->num_vlan > 1) {
222 status = ice_set_vlan_vsi_promisc(hw, vsi->idx, promisc_m,
226 status = ice_set_vsi_promisc(hw, vsi->idx, promisc_m,
229 status = ice_clear_vsi_promisc(hw, vsi->idx, promisc_m,
240 * ice_vsi_sync_fltr - Update the VSI filter list to the HW
241 * @vsi: ptr to the VSI
243 * Push any outstanding VSI filter changes through the AdminQ.
245 static int ice_vsi_sync_fltr(struct ice_vsi *vsi)
247 struct device *dev = ice_pf_to_dev(vsi->back);
248 struct net_device *netdev = vsi->netdev;
249 bool promisc_forced_on = false;
250 struct ice_pf *pf = vsi->back;
251 struct ice_hw *hw = &pf->hw;
252 enum ice_status status = 0;
253 u32 changed_flags = 0;
260 while (test_and_set_bit(ICE_CFG_BUSY, vsi->state))
261 usleep_range(1000, 2000);
263 changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags;
264 vsi->current_netdev_flags = vsi->netdev->flags;
266 INIT_LIST_HEAD(&vsi->tmp_sync_list);
267 INIT_LIST_HEAD(&vsi->tmp_unsync_list);
269 if (ice_vsi_fltr_changed(vsi)) {
270 clear_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);
271 clear_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);
272 clear_bit(ICE_VSI_VLAN_FLTR_CHANGED, vsi->state);
274 /* grab the netdev's addr_list_lock */
275 netif_addr_lock_bh(netdev);
276 __dev_uc_sync(netdev, ice_add_mac_to_sync_list,
277 ice_add_mac_to_unsync_list);
278 __dev_mc_sync(netdev, ice_add_mac_to_sync_list,
279 ice_add_mac_to_unsync_list);
280 /* our temp lists are populated. release lock */
281 netif_addr_unlock_bh(netdev);
284 /* Remove MAC addresses in the unsync list */
285 status = ice_fltr_remove_mac_list(vsi, &vsi->tmp_unsync_list);
286 ice_fltr_free_list(dev, &vsi->tmp_unsync_list);
288 netdev_err(netdev, "Failed to delete MAC filters\n");
289 /* if we failed because of alloc failures, just bail */
290 if (status == ICE_ERR_NO_MEMORY) {
296 /* Add MAC addresses in the sync list */
297 status = ice_fltr_add_mac_list(vsi, &vsi->tmp_sync_list);
298 ice_fltr_free_list(dev, &vsi->tmp_sync_list);
299 /* If filter is added successfully or already exists, do not go into
300 * 'if' condition and report it as error. Instead continue processing
301 * rest of the function.
303 if (status && status != ICE_ERR_ALREADY_EXISTS) {
304 netdev_err(netdev, "Failed to add MAC filters\n");
305 /* If there is no more space for new umac filters, VSI
306 * should go into promiscuous mode. There should be some
307 * space reserved for promiscuous filters.
309 if (hw->adminq.sq_last_status == ICE_AQ_RC_ENOSPC &&
310 !test_and_set_bit(ICE_FLTR_OVERFLOW_PROMISC,
312 promisc_forced_on = true;
313 netdev_warn(netdev, "Reached MAC filter limit, forcing promisc mode on VSI %d\n",
320 /* check for changes in promiscuous modes */
321 if (changed_flags & IFF_ALLMULTI) {
322 if (vsi->current_netdev_flags & IFF_ALLMULTI) {
323 if (vsi->num_vlan > 1)
324 promisc_m = ICE_MCAST_VLAN_PROMISC_BITS;
326 promisc_m = ICE_MCAST_PROMISC_BITS;
328 err = ice_cfg_promisc(vsi, promisc_m, true);
330 netdev_err(netdev, "Error setting Multicast promiscuous mode on VSI %i\n",
332 vsi->current_netdev_flags &= ~IFF_ALLMULTI;
336 /* !(vsi->current_netdev_flags & IFF_ALLMULTI) */
337 if (vsi->num_vlan > 1)
338 promisc_m = ICE_MCAST_VLAN_PROMISC_BITS;
340 promisc_m = ICE_MCAST_PROMISC_BITS;
342 err = ice_cfg_promisc(vsi, promisc_m, false);
344 netdev_err(netdev, "Error clearing Multicast promiscuous mode on VSI %i\n",
346 vsi->current_netdev_flags |= IFF_ALLMULTI;
352 if (((changed_flags & IFF_PROMISC) || promisc_forced_on) ||
353 test_bit(ICE_VSI_PROMISC_CHANGED, vsi->state)) {
354 clear_bit(ICE_VSI_PROMISC_CHANGED, vsi->state);
355 if (vsi->current_netdev_flags & IFF_PROMISC) {
356 /* Apply Rx filter rule to get traffic from wire */
357 if (!ice_is_dflt_vsi_in_use(pf->first_sw)) {
358 err = ice_set_dflt_vsi(pf->first_sw, vsi);
359 if (err && err != -EEXIST) {
360 netdev_err(netdev, "Error %d setting default VSI %i Rx rule\n",
362 vsi->current_netdev_flags &=
366 ice_cfg_vlan_pruning(vsi, false, false);
369 /* Clear Rx filter to remove traffic from wire */
370 if (ice_is_vsi_dflt_vsi(pf->first_sw, vsi)) {
371 err = ice_clear_dflt_vsi(pf->first_sw);
373 netdev_err(netdev, "Error %d clearing default VSI %i Rx rule\n",
375 vsi->current_netdev_flags |=
379 if (vsi->num_vlan > 1)
380 ice_cfg_vlan_pruning(vsi, true, false);
387 set_bit(ICE_VSI_PROMISC_CHANGED, vsi->state);
390 /* if something went wrong then set the changed flag so we try again */
391 set_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);
392 set_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);
394 clear_bit(ICE_CFG_BUSY, vsi->state);
399 * ice_sync_fltr_subtask - Sync the VSI filter list with HW
400 * @pf: board private structure
402 static void ice_sync_fltr_subtask(struct ice_pf *pf)
406 if (!pf || !(test_bit(ICE_FLAG_FLTR_SYNC, pf->flags)))
409 clear_bit(ICE_FLAG_FLTR_SYNC, pf->flags);
411 ice_for_each_vsi(pf, v)
412 if (pf->vsi[v] && ice_vsi_fltr_changed(pf->vsi[v]) &&
413 ice_vsi_sync_fltr(pf->vsi[v])) {
414 /* come back and try again later */
415 set_bit(ICE_FLAG_FLTR_SYNC, pf->flags);
421 * ice_pf_dis_all_vsi - Pause all VSIs on a PF
423 * @locked: is the rtnl_lock already held
425 static void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked)
430 ice_for_each_vsi(pf, v)
432 ice_dis_vsi(pf->vsi[v], locked);
434 for (node = 0; node < ICE_MAX_PF_AGG_NODES; node++)
435 pf->pf_agg_node[node].num_vsis = 0;
437 for (node = 0; node < ICE_MAX_VF_AGG_NODES; node++)
438 pf->vf_agg_node[node].num_vsis = 0;
442 * ice_prepare_for_reset - prep for the core to reset
443 * @pf: board private structure
445 * Inform or close all dependent features in prep for reset.
448 ice_prepare_for_reset(struct ice_pf *pf)
450 struct ice_hw *hw = &pf->hw;
453 /* already prepared for reset */
454 if (test_bit(ICE_PREPARED_FOR_RESET, pf->state))
457 /* Notify VFs of impending reset */
458 if (ice_check_sq_alive(hw, &hw->mailboxq))
459 ice_vc_notify_reset(pf);
461 /* Disable VFs until reset is completed */
462 ice_for_each_vf(pf, i)
463 ice_set_vf_state_qs_dis(&pf->vf[i]);
465 /* clear SW filtering DB */
466 ice_clear_hw_tbls(hw);
467 /* disable the VSIs and their queues that are not already DOWN */
468 ice_pf_dis_all_vsi(pf, false);
471 ice_sched_clear_port(hw->port_info);
473 ice_shutdown_all_ctrlq(hw);
475 set_bit(ICE_PREPARED_FOR_RESET, pf->state);
479 * ice_do_reset - Initiate one of many types of resets
480 * @pf: board private structure
481 * @reset_type: reset type requested
482 * before this function was called.
484 static void ice_do_reset(struct ice_pf *pf, enum ice_reset_req reset_type)
486 struct device *dev = ice_pf_to_dev(pf);
487 struct ice_hw *hw = &pf->hw;
489 dev_dbg(dev, "reset_type 0x%x requested\n", reset_type);
491 ice_prepare_for_reset(pf);
493 /* trigger the reset */
494 if (ice_reset(hw, reset_type)) {
495 dev_err(dev, "reset %d failed\n", reset_type);
496 set_bit(ICE_RESET_FAILED, pf->state);
497 clear_bit(ICE_RESET_OICR_RECV, pf->state);
498 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);
499 clear_bit(ICE_PFR_REQ, pf->state);
500 clear_bit(ICE_CORER_REQ, pf->state);
501 clear_bit(ICE_GLOBR_REQ, pf->state);
505 /* PFR is a bit of a special case because it doesn't result in an OICR
506 * interrupt. So for PFR, rebuild after the reset and clear the reset-
507 * associated state bits.
509 if (reset_type == ICE_RESET_PFR) {
511 ice_rebuild(pf, reset_type);
512 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);
513 clear_bit(ICE_PFR_REQ, pf->state);
514 ice_reset_all_vfs(pf, true);
519 * ice_reset_subtask - Set up for resetting the device and driver
520 * @pf: board private structure
522 static void ice_reset_subtask(struct ice_pf *pf)
524 enum ice_reset_req reset_type = ICE_RESET_INVAL;
526 /* When a CORER/GLOBR/EMPR is about to happen, the hardware triggers an
527 * OICR interrupt. The OICR handler (ice_misc_intr) determines what type
528 * of reset is pending and sets bits in pf->state indicating the reset
529 * type and ICE_RESET_OICR_RECV. So, if the latter bit is set
530 * prepare for pending reset if not already (for PF software-initiated
531 * global resets the software should already be prepared for it as
532 * indicated by ICE_PREPARED_FOR_RESET; for global resets initiated
533 * by firmware or software on other PFs, that bit is not set so prepare
534 * for the reset now), poll for reset done, rebuild and return.
536 if (test_bit(ICE_RESET_OICR_RECV, pf->state)) {
537 /* Perform the largest reset requested */
538 if (test_and_clear_bit(ICE_CORER_RECV, pf->state))
539 reset_type = ICE_RESET_CORER;
540 if (test_and_clear_bit(ICE_GLOBR_RECV, pf->state))
541 reset_type = ICE_RESET_GLOBR;
542 if (test_and_clear_bit(ICE_EMPR_RECV, pf->state))
543 reset_type = ICE_RESET_EMPR;
544 /* return if no valid reset type requested */
545 if (reset_type == ICE_RESET_INVAL)
547 ice_prepare_for_reset(pf);
549 /* make sure we are ready to rebuild */
550 if (ice_check_reset(&pf->hw)) {
551 set_bit(ICE_RESET_FAILED, pf->state);
553 /* done with reset. start rebuild */
554 pf->hw.reset_ongoing = false;
555 ice_rebuild(pf, reset_type);
556 /* clear bit to resume normal operations, but
557 * ICE_NEEDS_RESTART bit is set in case rebuild failed
559 clear_bit(ICE_RESET_OICR_RECV, pf->state);
560 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);
561 clear_bit(ICE_PFR_REQ, pf->state);
562 clear_bit(ICE_CORER_REQ, pf->state);
563 clear_bit(ICE_GLOBR_REQ, pf->state);
564 ice_reset_all_vfs(pf, true);
570 /* No pending resets to finish processing. Check for new resets */
571 if (test_bit(ICE_PFR_REQ, pf->state))
572 reset_type = ICE_RESET_PFR;
573 if (test_bit(ICE_CORER_REQ, pf->state))
574 reset_type = ICE_RESET_CORER;
575 if (test_bit(ICE_GLOBR_REQ, pf->state))
576 reset_type = ICE_RESET_GLOBR;
577 /* If no valid reset type requested just return */
578 if (reset_type == ICE_RESET_INVAL)
581 /* reset if not already down or busy */
582 if (!test_bit(ICE_DOWN, pf->state) &&
583 !test_bit(ICE_CFG_BUSY, pf->state)) {
584 ice_do_reset(pf, reset_type);
589 * ice_print_topo_conflict - print topology conflict message
590 * @vsi: the VSI whose topology status is being checked
592 static void ice_print_topo_conflict(struct ice_vsi *vsi)
594 switch (vsi->port_info->phy.link_info.topo_media_conflict) {
595 case ICE_AQ_LINK_TOPO_CONFLICT:
596 case ICE_AQ_LINK_MEDIA_CONFLICT:
597 case ICE_AQ_LINK_TOPO_UNREACH_PRT:
598 case ICE_AQ_LINK_TOPO_UNDRUTIL_PRT:
599 case ICE_AQ_LINK_TOPO_UNDRUTIL_MEDIA:
600 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");
602 case ICE_AQ_LINK_TOPO_UNSUPP_MEDIA:
603 netdev_info(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");
611 * ice_print_link_msg - print link up or down message
612 * @vsi: the VSI whose link status is being queried
613 * @isup: boolean for if the link is now up or down
615 void ice_print_link_msg(struct ice_vsi *vsi, bool isup)
617 struct ice_aqc_get_phy_caps_data *caps;
618 const char *an_advertised;
619 enum ice_status status;
629 if (vsi->current_isup == isup)
632 vsi->current_isup = isup;
635 netdev_info(vsi->netdev, "NIC Link is Down\n");
639 switch (vsi->port_info->phy.link_info.link_speed) {
640 case ICE_AQ_LINK_SPEED_100GB:
643 case ICE_AQ_LINK_SPEED_50GB:
646 case ICE_AQ_LINK_SPEED_40GB:
649 case ICE_AQ_LINK_SPEED_25GB:
652 case ICE_AQ_LINK_SPEED_20GB:
655 case ICE_AQ_LINK_SPEED_10GB:
658 case ICE_AQ_LINK_SPEED_5GB:
661 case ICE_AQ_LINK_SPEED_2500MB:
664 case ICE_AQ_LINK_SPEED_1000MB:
667 case ICE_AQ_LINK_SPEED_100MB:
675 switch (vsi->port_info->fc.current_mode) {
679 case ICE_FC_TX_PAUSE:
682 case ICE_FC_RX_PAUSE:
693 /* Get FEC mode based on negotiated link info */
694 switch (vsi->port_info->phy.link_info.fec_info) {
695 case ICE_AQ_LINK_25G_RS_528_FEC_EN:
696 case ICE_AQ_LINK_25G_RS_544_FEC_EN:
699 case ICE_AQ_LINK_25G_KR_FEC_EN:
700 fec = "FC-FEC/BASE-R";
707 /* check if autoneg completed, might be false due to not supported */
708 if (vsi->port_info->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)
713 /* Get FEC mode requested based on PHY caps last SW configuration */
714 caps = kzalloc(sizeof(*caps), GFP_KERNEL);
717 an_advertised = "Unknown";
721 status = ice_aq_get_phy_caps(vsi->port_info, false,
722 ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL);
724 netdev_info(vsi->netdev, "Get phy capability failed.\n");
726 an_advertised = ice_is_phy_caps_an_enabled(caps) ? "On" : "Off";
728 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
729 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
731 else if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
732 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
733 fec_req = "FC-FEC/BASE-R";
740 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",
741 speed, fec_req, fec, an_advertised, an, fc);
742 ice_print_topo_conflict(vsi);
746 * ice_vsi_link_event - update the VSI's netdev
747 * @vsi: the VSI on which the link event occurred
748 * @link_up: whether or not the VSI needs to be set up or down
750 static void ice_vsi_link_event(struct ice_vsi *vsi, bool link_up)
755 if (test_bit(ICE_VSI_DOWN, vsi->state) || !vsi->netdev)
758 if (vsi->type == ICE_VSI_PF) {
759 if (link_up == netif_carrier_ok(vsi->netdev))
763 netif_carrier_on(vsi->netdev);
764 netif_tx_wake_all_queues(vsi->netdev);
766 netif_carrier_off(vsi->netdev);
767 netif_tx_stop_all_queues(vsi->netdev);
773 * ice_set_dflt_mib - send a default config MIB to the FW
774 * @pf: private PF struct
776 * This function sends a default configuration MIB to the FW.
778 * If this function errors out at any point, the driver is still able to
779 * function. The main impact is that LFC may not operate as expected.
780 * Therefore an error state in this function should be treated with a DBG
781 * message and continue on with driver rebuild/reenable.
783 static void ice_set_dflt_mib(struct ice_pf *pf)
785 struct device *dev = ice_pf_to_dev(pf);
786 u8 mib_type, *buf, *lldpmib = NULL;
787 u16 len, typelen, offset = 0;
788 struct ice_lldp_org_tlv *tlv;
789 struct ice_hw *hw = &pf->hw;
792 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
793 lldpmib = kzalloc(ICE_LLDPDU_SIZE, GFP_KERNEL);
795 dev_dbg(dev, "%s Failed to allocate MIB memory\n",
800 /* Add ETS CFG TLV */
801 tlv = (struct ice_lldp_org_tlv *)lldpmib;
802 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
803 ICE_IEEE_ETS_TLV_LEN);
804 tlv->typelen = htons(typelen);
805 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
806 ICE_IEEE_SUBTYPE_ETS_CFG);
807 tlv->ouisubtype = htonl(ouisubtype);
812 /* ETS CFG all UPs map to TC 0. Next 4 (1 - 4) Octets = 0.
813 * Octets 5 - 12 are BW values, set octet 5 to 100% BW.
814 * Octets 13 - 20 are TSA values - leave as zeros
817 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
819 tlv = (struct ice_lldp_org_tlv *)
820 ((char *)tlv + sizeof(tlv->typelen) + len);
822 /* Add ETS REC TLV */
824 tlv->typelen = htons(typelen);
826 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
827 ICE_IEEE_SUBTYPE_ETS_REC);
828 tlv->ouisubtype = htonl(ouisubtype);
830 /* First octet of buf is reserved
831 * Octets 1 - 4 map UP to TC - all UPs map to zero
832 * Octets 5 - 12 are BW values - set TC 0 to 100%.
833 * Octets 13 - 20 are TSA value - leave as zeros
837 tlv = (struct ice_lldp_org_tlv *)
838 ((char *)tlv + sizeof(tlv->typelen) + len);
840 /* Add PFC CFG TLV */
841 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
842 ICE_IEEE_PFC_TLV_LEN);
843 tlv->typelen = htons(typelen);
845 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
846 ICE_IEEE_SUBTYPE_PFC_CFG);
847 tlv->ouisubtype = htonl(ouisubtype);
849 /* Octet 1 left as all zeros - PFC disabled */
851 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
854 if (ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, offset, NULL))
855 dev_dbg(dev, "%s Failed to set default LLDP MIB\n", __func__);
861 * ice_link_event - process the link event
862 * @pf: PF that the link event is associated with
863 * @pi: port_info for the port that the link event is associated with
864 * @link_up: true if the physical link is up and false if it is down
865 * @link_speed: current link speed received from the link event
867 * Returns 0 on success and negative on failure
870 ice_link_event(struct ice_pf *pf, struct ice_port_info *pi, bool link_up,
873 struct device *dev = ice_pf_to_dev(pf);
874 struct ice_phy_info *phy_info;
875 enum ice_status status;
881 phy_info->link_info_old = phy_info->link_info;
883 old_link = !!(phy_info->link_info_old.link_info & ICE_AQ_LINK_UP);
884 old_link_speed = phy_info->link_info_old.link_speed;
886 /* update the link info structures and re-enable link events,
887 * don't bail on failure due to other book keeping needed
889 status = ice_update_link_info(pi);
891 dev_dbg(dev, "Failed to update link status on port %d, err %s aq_err %s\n",
892 pi->lport, ice_stat_str(status),
893 ice_aq_str(pi->hw->adminq.sq_last_status));
895 /* Check if the link state is up after updating link info, and treat
896 * this event as an UP event since the link is actually UP now.
898 if (phy_info->link_info.link_info & ICE_AQ_LINK_UP)
901 vsi = ice_get_main_vsi(pf);
902 if (!vsi || !vsi->port_info)
905 /* turn off PHY if media was removed */
906 if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags) &&
907 !(pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE)) {
908 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);
909 ice_set_link(vsi, false);
912 /* if the old link up/down and speed is the same as the new */
913 if (link_up == old_link && link_speed == old_link_speed)
916 if (ice_is_dcb_active(pf)) {
917 if (test_bit(ICE_FLAG_DCB_ENA, pf->flags))
921 ice_set_dflt_mib(pf);
923 ice_vsi_link_event(vsi, link_up);
924 ice_print_link_msg(vsi, link_up);
926 ice_vc_notify_link_state(pf);
932 * ice_watchdog_subtask - periodic tasks not using event driven scheduling
933 * @pf: board private structure
935 static void ice_watchdog_subtask(struct ice_pf *pf)
939 /* if interface is down do nothing */
940 if (test_bit(ICE_DOWN, pf->state) ||
941 test_bit(ICE_CFG_BUSY, pf->state))
944 /* make sure we don't do these things too often */
945 if (time_before(jiffies,
946 pf->serv_tmr_prev + pf->serv_tmr_period))
949 pf->serv_tmr_prev = jiffies;
951 /* Update the stats for active netdevs so the network stack
952 * can look at updated numbers whenever it cares to
954 ice_update_pf_stats(pf);
955 ice_for_each_vsi(pf, i)
956 if (pf->vsi[i] && pf->vsi[i]->netdev)
957 ice_update_vsi_stats(pf->vsi[i]);
961 * ice_init_link_events - enable/initialize link events
962 * @pi: pointer to the port_info instance
964 * Returns -EIO on failure, 0 on success
966 static int ice_init_link_events(struct ice_port_info *pi)
970 mask = ~((u16)(ICE_AQ_LINK_EVENT_UPDOWN | ICE_AQ_LINK_EVENT_MEDIA_NA |
971 ICE_AQ_LINK_EVENT_MODULE_QUAL_FAIL));
973 if (ice_aq_set_event_mask(pi->hw, pi->lport, mask, NULL)) {
974 dev_dbg(ice_hw_to_dev(pi->hw), "Failed to set link event mask for port %d\n",
979 if (ice_aq_get_link_info(pi, true, NULL, NULL)) {
980 dev_dbg(ice_hw_to_dev(pi->hw), "Failed to enable link events for port %d\n",
989 * ice_handle_link_event - handle link event via ARQ
990 * @pf: PF that the link event is associated with
991 * @event: event structure containing link status info
994 ice_handle_link_event(struct ice_pf *pf, struct ice_rq_event_info *event)
996 struct ice_aqc_get_link_status_data *link_data;
997 struct ice_port_info *port_info;
1000 link_data = (struct ice_aqc_get_link_status_data *)event->msg_buf;
1001 port_info = pf->hw.port_info;
1005 status = ice_link_event(pf, port_info,
1006 !!(link_data->link_info & ICE_AQ_LINK_UP),
1007 le16_to_cpu(link_data->link_speed));
1009 dev_dbg(ice_pf_to_dev(pf), "Could not process link event, error %d\n",
1015 enum ice_aq_task_state {
1016 ICE_AQ_TASK_WAITING = 0,
1017 ICE_AQ_TASK_COMPLETE,
1018 ICE_AQ_TASK_CANCELED,
1021 struct ice_aq_task {
1022 struct hlist_node entry;
1025 struct ice_rq_event_info *event;
1026 enum ice_aq_task_state state;
1030 * ice_aq_wait_for_event - Wait for an AdminQ event from firmware
1031 * @pf: pointer to the PF private structure
1032 * @opcode: the opcode to wait for
1033 * @timeout: how long to wait, in jiffies
1034 * @event: storage for the event info
1036 * Waits for a specific AdminQ completion event on the ARQ for a given PF. The
1037 * current thread will be put to sleep until the specified event occurs or
1038 * until the given timeout is reached.
1040 * To obtain only the descriptor contents, pass an event without an allocated
1041 * msg_buf. If the complete data buffer is desired, allocate the
1042 * event->msg_buf with enough space ahead of time.
1044 * Returns: zero on success, or a negative error code on failure.
1046 int ice_aq_wait_for_event(struct ice_pf *pf, u16 opcode, unsigned long timeout,
1047 struct ice_rq_event_info *event)
1049 struct device *dev = ice_pf_to_dev(pf);
1050 struct ice_aq_task *task;
1051 unsigned long start;
1055 task = kzalloc(sizeof(*task), GFP_KERNEL);
1059 INIT_HLIST_NODE(&task->entry);
1060 task->opcode = opcode;
1061 task->event = event;
1062 task->state = ICE_AQ_TASK_WAITING;
1064 spin_lock_bh(&pf->aq_wait_lock);
1065 hlist_add_head(&task->entry, &pf->aq_wait_list);
1066 spin_unlock_bh(&pf->aq_wait_lock);
1070 ret = wait_event_interruptible_timeout(pf->aq_wait_queue, task->state,
1072 switch (task->state) {
1073 case ICE_AQ_TASK_WAITING:
1074 err = ret < 0 ? ret : -ETIMEDOUT;
1076 case ICE_AQ_TASK_CANCELED:
1077 err = ret < 0 ? ret : -ECANCELED;
1079 case ICE_AQ_TASK_COMPLETE:
1080 err = ret < 0 ? ret : 0;
1083 WARN(1, "Unexpected AdminQ wait task state %u", task->state);
1088 dev_dbg(dev, "Waited %u msecs (max %u msecs) for firmware response to op 0x%04x\n",
1089 jiffies_to_msecs(jiffies - start),
1090 jiffies_to_msecs(timeout),
1093 spin_lock_bh(&pf->aq_wait_lock);
1094 hlist_del(&task->entry);
1095 spin_unlock_bh(&pf->aq_wait_lock);
1102 * ice_aq_check_events - Check if any thread is waiting for an AdminQ event
1103 * @pf: pointer to the PF private structure
1104 * @opcode: the opcode of the event
1105 * @event: the event to check
1107 * Loops over the current list of pending threads waiting for an AdminQ event.
1108 * For each matching task, copy the contents of the event into the task
1109 * structure and wake up the thread.
1111 * If multiple threads wait for the same opcode, they will all be woken up.
1113 * Note that event->msg_buf will only be duplicated if the event has a buffer
1114 * with enough space already allocated. Otherwise, only the descriptor and
1115 * message length will be copied.
1117 * Returns: true if an event was found, false otherwise
1119 static void ice_aq_check_events(struct ice_pf *pf, u16 opcode,
1120 struct ice_rq_event_info *event)
1122 struct ice_aq_task *task;
1125 spin_lock_bh(&pf->aq_wait_lock);
1126 hlist_for_each_entry(task, &pf->aq_wait_list, entry) {
1127 if (task->state || task->opcode != opcode)
1130 memcpy(&task->event->desc, &event->desc, sizeof(event->desc));
1131 task->event->msg_len = event->msg_len;
1133 /* Only copy the data buffer if a destination was set */
1134 if (task->event->msg_buf &&
1135 task->event->buf_len > event->buf_len) {
1136 memcpy(task->event->msg_buf, event->msg_buf,
1138 task->event->buf_len = event->buf_len;
1141 task->state = ICE_AQ_TASK_COMPLETE;
1144 spin_unlock_bh(&pf->aq_wait_lock);
1147 wake_up(&pf->aq_wait_queue);
1151 * ice_aq_cancel_waiting_tasks - Immediately cancel all waiting tasks
1152 * @pf: the PF private structure
1154 * Set all waiting tasks to ICE_AQ_TASK_CANCELED, and wake up their threads.
1155 * This will then cause ice_aq_wait_for_event to exit with -ECANCELED.
1157 static void ice_aq_cancel_waiting_tasks(struct ice_pf *pf)
1159 struct ice_aq_task *task;
1161 spin_lock_bh(&pf->aq_wait_lock);
1162 hlist_for_each_entry(task, &pf->aq_wait_list, entry)
1163 task->state = ICE_AQ_TASK_CANCELED;
1164 spin_unlock_bh(&pf->aq_wait_lock);
1166 wake_up(&pf->aq_wait_queue);
1170 * __ice_clean_ctrlq - helper function to clean controlq rings
1171 * @pf: ptr to struct ice_pf
1172 * @q_type: specific Control queue type
1174 static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type)
1176 struct device *dev = ice_pf_to_dev(pf);
1177 struct ice_rq_event_info event;
1178 struct ice_hw *hw = &pf->hw;
1179 struct ice_ctl_q_info *cq;
1184 /* Do not clean control queue if/when PF reset fails */
1185 if (test_bit(ICE_RESET_FAILED, pf->state))
1189 case ICE_CTL_Q_ADMIN:
1193 case ICE_CTL_Q_MAILBOX:
1196 /* we are going to try to detect a malicious VF, so set the
1197 * state to begin detection
1199 hw->mbx_snapshot.mbx_buf.state = ICE_MAL_VF_DETECT_STATE_NEW_SNAPSHOT;
1202 dev_warn(dev, "Unknown control queue type 0x%x\n", q_type);
1206 /* check for error indications - PF_xx_AxQLEN register layout for
1207 * FW/MBX/SB are identical so just use defines for PF_FW_AxQLEN.
1209 val = rd32(hw, cq->rq.len);
1210 if (val & (PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M |
1211 PF_FW_ARQLEN_ARQCRIT_M)) {
1213 if (val & PF_FW_ARQLEN_ARQVFE_M)
1214 dev_dbg(dev, "%s Receive Queue VF Error detected\n",
1216 if (val & PF_FW_ARQLEN_ARQOVFL_M) {
1217 dev_dbg(dev, "%s Receive Queue Overflow Error detected\n",
1220 if (val & PF_FW_ARQLEN_ARQCRIT_M)
1221 dev_dbg(dev, "%s Receive Queue Critical Error detected\n",
1223 val &= ~(PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M |
1224 PF_FW_ARQLEN_ARQCRIT_M);
1226 wr32(hw, cq->rq.len, val);
1229 val = rd32(hw, cq->sq.len);
1230 if (val & (PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M |
1231 PF_FW_ATQLEN_ATQCRIT_M)) {
1233 if (val & PF_FW_ATQLEN_ATQVFE_M)
1234 dev_dbg(dev, "%s Send Queue VF Error detected\n",
1236 if (val & PF_FW_ATQLEN_ATQOVFL_M) {
1237 dev_dbg(dev, "%s Send Queue Overflow Error detected\n",
1240 if (val & PF_FW_ATQLEN_ATQCRIT_M)
1241 dev_dbg(dev, "%s Send Queue Critical Error detected\n",
1243 val &= ~(PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M |
1244 PF_FW_ATQLEN_ATQCRIT_M);
1246 wr32(hw, cq->sq.len, val);
1249 event.buf_len = cq->rq_buf_size;
1250 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
1255 enum ice_status ret;
1258 ret = ice_clean_rq_elem(hw, cq, &event, &pending);
1259 if (ret == ICE_ERR_AQ_NO_WORK)
1262 dev_err(dev, "%s Receive Queue event error %s\n", qtype,
1267 opcode = le16_to_cpu(event.desc.opcode);
1269 /* Notify any thread that might be waiting for this event */
1270 ice_aq_check_events(pf, opcode, &event);
1273 case ice_aqc_opc_get_link_status:
1274 if (ice_handle_link_event(pf, &event))
1275 dev_err(dev, "Could not handle link event\n");
1277 case ice_aqc_opc_event_lan_overflow:
1278 ice_vf_lan_overflow_event(pf, &event);
1280 case ice_mbx_opc_send_msg_to_pf:
1281 if (!ice_is_malicious_vf(pf, &event, i, pending))
1282 ice_vc_process_vf_msg(pf, &event);
1284 case ice_aqc_opc_fw_logging:
1285 ice_output_fw_log(hw, &event.desc, event.msg_buf);
1287 case ice_aqc_opc_lldp_set_mib_change:
1288 ice_dcb_process_lldp_set_mib_change(pf, &event);
1291 dev_dbg(dev, "%s Receive Queue unknown event 0x%04x ignored\n",
1295 } while (pending && (i++ < ICE_DFLT_IRQ_WORK));
1297 kfree(event.msg_buf);
1299 return pending && (i == ICE_DFLT_IRQ_WORK);
1303 * ice_ctrlq_pending - check if there is a difference between ntc and ntu
1304 * @hw: pointer to hardware info
1305 * @cq: control queue information
1307 * returns true if there are pending messages in a queue, false if there aren't
1309 static bool ice_ctrlq_pending(struct ice_hw *hw, struct ice_ctl_q_info *cq)
1313 ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask);
1314 return cq->rq.next_to_clean != ntu;
1318 * ice_clean_adminq_subtask - clean the AdminQ rings
1319 * @pf: board private structure
1321 static void ice_clean_adminq_subtask(struct ice_pf *pf)
1323 struct ice_hw *hw = &pf->hw;
1325 if (!test_bit(ICE_ADMINQ_EVENT_PENDING, pf->state))
1328 if (__ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN))
1331 clear_bit(ICE_ADMINQ_EVENT_PENDING, pf->state);
1333 /* There might be a situation where new messages arrive to a control
1334 * queue between processing the last message and clearing the
1335 * EVENT_PENDING bit. So before exiting, check queue head again (using
1336 * ice_ctrlq_pending) and process new messages if any.
1338 if (ice_ctrlq_pending(hw, &hw->adminq))
1339 __ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN);
1345 * ice_clean_mailboxq_subtask - clean the MailboxQ rings
1346 * @pf: board private structure
1348 static void ice_clean_mailboxq_subtask(struct ice_pf *pf)
1350 struct ice_hw *hw = &pf->hw;
1352 if (!test_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state))
1355 if (__ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX))
1358 clear_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state);
1360 if (ice_ctrlq_pending(hw, &hw->mailboxq))
1361 __ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX);
1367 * ice_service_task_schedule - schedule the service task to wake up
1368 * @pf: board private structure
1370 * If not already scheduled, this puts the task into the work queue.
1372 void ice_service_task_schedule(struct ice_pf *pf)
1374 if (!test_bit(ICE_SERVICE_DIS, pf->state) &&
1375 !test_and_set_bit(ICE_SERVICE_SCHED, pf->state) &&
1376 !test_bit(ICE_NEEDS_RESTART, pf->state))
1377 queue_work(ice_wq, &pf->serv_task);
1381 * ice_service_task_complete - finish up the service task
1382 * @pf: board private structure
1384 static void ice_service_task_complete(struct ice_pf *pf)
1386 WARN_ON(!test_bit(ICE_SERVICE_SCHED, pf->state));
1388 /* force memory (pf->state) to sync before next service task */
1389 smp_mb__before_atomic();
1390 clear_bit(ICE_SERVICE_SCHED, pf->state);
1394 * ice_service_task_stop - stop service task and cancel works
1395 * @pf: board private structure
1397 * Return 0 if the ICE_SERVICE_DIS bit was not already set,
1400 static int ice_service_task_stop(struct ice_pf *pf)
1404 ret = test_and_set_bit(ICE_SERVICE_DIS, pf->state);
1406 if (pf->serv_tmr.function)
1407 del_timer_sync(&pf->serv_tmr);
1408 if (pf->serv_task.func)
1409 cancel_work_sync(&pf->serv_task);
1411 clear_bit(ICE_SERVICE_SCHED, pf->state);
1416 * ice_service_task_restart - restart service task and schedule works
1417 * @pf: board private structure
1419 * This function is needed for suspend and resume works (e.g WoL scenario)
1421 static void ice_service_task_restart(struct ice_pf *pf)
1423 clear_bit(ICE_SERVICE_DIS, pf->state);
1424 ice_service_task_schedule(pf);
1428 * ice_service_timer - timer callback to schedule service task
1429 * @t: pointer to timer_list
1431 static void ice_service_timer(struct timer_list *t)
1433 struct ice_pf *pf = from_timer(pf, t, serv_tmr);
1435 mod_timer(&pf->serv_tmr, round_jiffies(pf->serv_tmr_period + jiffies));
1436 ice_service_task_schedule(pf);
1440 * ice_handle_mdd_event - handle malicious driver detect event
1441 * @pf: pointer to the PF structure
1443 * Called from service task. OICR interrupt handler indicates MDD event.
1444 * VF MDD logging is guarded by net_ratelimit. Additional PF and VF log
1445 * messages are wrapped by netif_msg_[rx|tx]_err. Since VF Rx MDD events
1446 * disable the queue, the PF can be configured to reset the VF using ethtool
1447 * private flag mdd-auto-reset-vf.
1449 static void ice_handle_mdd_event(struct ice_pf *pf)
1451 struct device *dev = ice_pf_to_dev(pf);
1452 struct ice_hw *hw = &pf->hw;
1456 if (!test_and_clear_bit(ICE_MDD_EVENT_PENDING, pf->state)) {
1457 /* Since the VF MDD event logging is rate limited, check if
1458 * there are pending MDD events.
1460 ice_print_vfs_mdd_events(pf);
1464 /* find what triggered an MDD event */
1465 reg = rd32(hw, GL_MDET_TX_PQM);
1466 if (reg & GL_MDET_TX_PQM_VALID_M) {
1467 u8 pf_num = (reg & GL_MDET_TX_PQM_PF_NUM_M) >>
1468 GL_MDET_TX_PQM_PF_NUM_S;
1469 u16 vf_num = (reg & GL_MDET_TX_PQM_VF_NUM_M) >>
1470 GL_MDET_TX_PQM_VF_NUM_S;
1471 u8 event = (reg & GL_MDET_TX_PQM_MAL_TYPE_M) >>
1472 GL_MDET_TX_PQM_MAL_TYPE_S;
1473 u16 queue = ((reg & GL_MDET_TX_PQM_QNUM_M) >>
1474 GL_MDET_TX_PQM_QNUM_S);
1476 if (netif_msg_tx_err(pf))
1477 dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n",
1478 event, queue, pf_num, vf_num);
1479 wr32(hw, GL_MDET_TX_PQM, 0xffffffff);
1482 reg = rd32(hw, GL_MDET_TX_TCLAN);
1483 if (reg & GL_MDET_TX_TCLAN_VALID_M) {
1484 u8 pf_num = (reg & GL_MDET_TX_TCLAN_PF_NUM_M) >>
1485 GL_MDET_TX_TCLAN_PF_NUM_S;
1486 u16 vf_num = (reg & GL_MDET_TX_TCLAN_VF_NUM_M) >>
1487 GL_MDET_TX_TCLAN_VF_NUM_S;
1488 u8 event = (reg & GL_MDET_TX_TCLAN_MAL_TYPE_M) >>
1489 GL_MDET_TX_TCLAN_MAL_TYPE_S;
1490 u16 queue = ((reg & GL_MDET_TX_TCLAN_QNUM_M) >>
1491 GL_MDET_TX_TCLAN_QNUM_S);
1493 if (netif_msg_tx_err(pf))
1494 dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n",
1495 event, queue, pf_num, vf_num);
1496 wr32(hw, GL_MDET_TX_TCLAN, 0xffffffff);
1499 reg = rd32(hw, GL_MDET_RX);
1500 if (reg & GL_MDET_RX_VALID_M) {
1501 u8 pf_num = (reg & GL_MDET_RX_PF_NUM_M) >>
1502 GL_MDET_RX_PF_NUM_S;
1503 u16 vf_num = (reg & GL_MDET_RX_VF_NUM_M) >>
1504 GL_MDET_RX_VF_NUM_S;
1505 u8 event = (reg & GL_MDET_RX_MAL_TYPE_M) >>
1506 GL_MDET_RX_MAL_TYPE_S;
1507 u16 queue = ((reg & GL_MDET_RX_QNUM_M) >>
1510 if (netif_msg_rx_err(pf))
1511 dev_info(dev, "Malicious Driver Detection event %d on RX queue %d PF# %d VF# %d\n",
1512 event, queue, pf_num, vf_num);
1513 wr32(hw, GL_MDET_RX, 0xffffffff);
1516 /* check to see if this PF caused an MDD event */
1517 reg = rd32(hw, PF_MDET_TX_PQM);
1518 if (reg & PF_MDET_TX_PQM_VALID_M) {
1519 wr32(hw, PF_MDET_TX_PQM, 0xFFFF);
1520 if (netif_msg_tx_err(pf))
1521 dev_info(dev, "Malicious Driver Detection event TX_PQM detected on PF\n");
1524 reg = rd32(hw, PF_MDET_TX_TCLAN);
1525 if (reg & PF_MDET_TX_TCLAN_VALID_M) {
1526 wr32(hw, PF_MDET_TX_TCLAN, 0xFFFF);
1527 if (netif_msg_tx_err(pf))
1528 dev_info(dev, "Malicious Driver Detection event TX_TCLAN detected on PF\n");
1531 reg = rd32(hw, PF_MDET_RX);
1532 if (reg & PF_MDET_RX_VALID_M) {
1533 wr32(hw, PF_MDET_RX, 0xFFFF);
1534 if (netif_msg_rx_err(pf))
1535 dev_info(dev, "Malicious Driver Detection event RX detected on PF\n");
1538 /* Check to see if one of the VFs caused an MDD event, and then
1539 * increment counters and set print pending
1541 ice_for_each_vf(pf, i) {
1542 struct ice_vf *vf = &pf->vf[i];
1544 reg = rd32(hw, VP_MDET_TX_PQM(i));
1545 if (reg & VP_MDET_TX_PQM_VALID_M) {
1546 wr32(hw, VP_MDET_TX_PQM(i), 0xFFFF);
1547 vf->mdd_tx_events.count++;
1548 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);
1549 if (netif_msg_tx_err(pf))
1550 dev_info(dev, "Malicious Driver Detection event TX_PQM detected on VF %d\n",
1554 reg = rd32(hw, VP_MDET_TX_TCLAN(i));
1555 if (reg & VP_MDET_TX_TCLAN_VALID_M) {
1556 wr32(hw, VP_MDET_TX_TCLAN(i), 0xFFFF);
1557 vf->mdd_tx_events.count++;
1558 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);
1559 if (netif_msg_tx_err(pf))
1560 dev_info(dev, "Malicious Driver Detection event TX_TCLAN detected on VF %d\n",
1564 reg = rd32(hw, VP_MDET_TX_TDPU(i));
1565 if (reg & VP_MDET_TX_TDPU_VALID_M) {
1566 wr32(hw, VP_MDET_TX_TDPU(i), 0xFFFF);
1567 vf->mdd_tx_events.count++;
1568 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);
1569 if (netif_msg_tx_err(pf))
1570 dev_info(dev, "Malicious Driver Detection event TX_TDPU detected on VF %d\n",
1574 reg = rd32(hw, VP_MDET_RX(i));
1575 if (reg & VP_MDET_RX_VALID_M) {
1576 wr32(hw, VP_MDET_RX(i), 0xFFFF);
1577 vf->mdd_rx_events.count++;
1578 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);
1579 if (netif_msg_rx_err(pf))
1580 dev_info(dev, "Malicious Driver Detection event RX detected on VF %d\n",
1583 /* Since the queue is disabled on VF Rx MDD events, the
1584 * PF can be configured to reset the VF through ethtool
1585 * private flag mdd-auto-reset-vf.
1587 if (test_bit(ICE_FLAG_MDD_AUTO_RESET_VF, pf->flags)) {
1588 /* VF MDD event counters will be cleared by
1589 * reset, so print the event prior to reset.
1591 ice_print_vf_rx_mdd_event(vf);
1592 ice_reset_vf(&pf->vf[i], false);
1597 ice_print_vfs_mdd_events(pf);
1601 * ice_force_phys_link_state - Force the physical link state
1602 * @vsi: VSI to force the physical link state to up/down
1603 * @link_up: true/false indicates to set the physical link to up/down
1605 * Force the physical link state by getting the current PHY capabilities from
1606 * hardware and setting the PHY config based on the determined capabilities. If
1607 * link changes a link event will be triggered because both the Enable Automatic
1608 * Link Update and LESM Enable bits are set when setting the PHY capabilities.
1610 * Returns 0 on success, negative on failure
1612 static int ice_force_phys_link_state(struct ice_vsi *vsi, bool link_up)
1614 struct ice_aqc_get_phy_caps_data *pcaps;
1615 struct ice_aqc_set_phy_cfg_data *cfg;
1616 struct ice_port_info *pi;
1620 if (!vsi || !vsi->port_info || !vsi->back)
1622 if (vsi->type != ICE_VSI_PF)
1625 dev = ice_pf_to_dev(vsi->back);
1627 pi = vsi->port_info;
1629 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
1633 retcode = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
1636 dev_err(dev, "Failed to get phy capabilities, VSI %d error %d\n",
1637 vsi->vsi_num, retcode);
1642 /* No change in link */
1643 if (link_up == !!(pcaps->caps & ICE_AQC_PHY_EN_LINK) &&
1644 link_up == !!(pi->phy.link_info.link_info & ICE_AQ_LINK_UP))
1647 /* Use the current user PHY configuration. The current user PHY
1648 * configuration is initialized during probe from PHY capabilities
1649 * software mode, and updated on set PHY configuration.
1651 cfg = kmemdup(&pi->phy.curr_user_phy_cfg, sizeof(*cfg), GFP_KERNEL);
1657 cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
1659 cfg->caps |= ICE_AQ_PHY_ENA_LINK;
1661 cfg->caps &= ~ICE_AQ_PHY_ENA_LINK;
1663 retcode = ice_aq_set_phy_cfg(&vsi->back->hw, pi, cfg, NULL);
1665 dev_err(dev, "Failed to set phy config, VSI %d error %d\n",
1666 vsi->vsi_num, retcode);
1677 * ice_init_nvm_phy_type - Initialize the NVM PHY type
1678 * @pi: port info structure
1680 * Initialize nvm_phy_type_[low|high] for link lenient mode support
1682 static int ice_init_nvm_phy_type(struct ice_port_info *pi)
1684 struct ice_aqc_get_phy_caps_data *pcaps;
1685 struct ice_pf *pf = pi->hw->back;
1686 enum ice_status status;
1689 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
1693 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_NO_MEDIA, pcaps,
1697 dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n");
1702 pf->nvm_phy_type_hi = pcaps->phy_type_high;
1703 pf->nvm_phy_type_lo = pcaps->phy_type_low;
1711 * ice_init_link_dflt_override - Initialize link default override
1712 * @pi: port info structure
1714 * Initialize link default override and PHY total port shutdown during probe
1716 static void ice_init_link_dflt_override(struct ice_port_info *pi)
1718 struct ice_link_default_override_tlv *ldo;
1719 struct ice_pf *pf = pi->hw->back;
1721 ldo = &pf->link_dflt_override;
1722 if (ice_get_link_default_override(ldo, pi))
1725 if (!(ldo->options & ICE_LINK_OVERRIDE_PORT_DIS))
1728 /* Enable Total Port Shutdown (override/replace link-down-on-close
1729 * ethtool private flag) for ports with Port Disable bit set.
1731 set_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags);
1732 set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags);
1736 * ice_init_phy_cfg_dflt_override - Initialize PHY cfg default override settings
1737 * @pi: port info structure
1739 * If default override is enabled, initialize the user PHY cfg speed and FEC
1740 * settings using the default override mask from the NVM.
1742 * The PHY should only be configured with the default override settings the
1743 * first time media is available. The ICE_LINK_DEFAULT_OVERRIDE_PENDING state
1744 * is used to indicate that the user PHY cfg default override is initialized
1745 * and the PHY has not been configured with the default override settings. The
1746 * state is set here, and cleared in ice_configure_phy the first time the PHY is
1749 * This function should be called only if the FW doesn't support default
1750 * configuration mode, as reported by ice_fw_supports_report_dflt_cfg.
1752 static void ice_init_phy_cfg_dflt_override(struct ice_port_info *pi)
1754 struct ice_link_default_override_tlv *ldo;
1755 struct ice_aqc_set_phy_cfg_data *cfg;
1756 struct ice_phy_info *phy = &pi->phy;
1757 struct ice_pf *pf = pi->hw->back;
1759 ldo = &pf->link_dflt_override;
1761 /* If link default override is enabled, use to mask NVM PHY capabilities
1762 * for speed and FEC default configuration.
1764 cfg = &phy->curr_user_phy_cfg;
1766 if (ldo->phy_type_low || ldo->phy_type_high) {
1767 cfg->phy_type_low = pf->nvm_phy_type_lo &
1768 cpu_to_le64(ldo->phy_type_low);
1769 cfg->phy_type_high = pf->nvm_phy_type_hi &
1770 cpu_to_le64(ldo->phy_type_high);
1772 cfg->link_fec_opt = ldo->fec_options;
1773 phy->curr_user_fec_req = ICE_FEC_AUTO;
1775 set_bit(ICE_LINK_DEFAULT_OVERRIDE_PENDING, pf->state);
1779 * ice_init_phy_user_cfg - Initialize the PHY user configuration
1780 * @pi: port info structure
1782 * Initialize the current user PHY configuration, speed, FEC, and FC requested
1783 * mode to default. The PHY defaults are from get PHY capabilities topology
1784 * with media so call when media is first available. An error is returned if
1785 * called when media is not available. The PHY initialization completed state is
1788 * These configurations are used when setting PHY
1789 * configuration. The user PHY configuration is updated on set PHY
1790 * configuration. Returns 0 on success, negative on failure
1792 static int ice_init_phy_user_cfg(struct ice_port_info *pi)
1794 struct ice_aqc_get_phy_caps_data *pcaps;
1795 struct ice_phy_info *phy = &pi->phy;
1796 struct ice_pf *pf = pi->hw->back;
1797 enum ice_status status;
1800 if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE))
1803 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
1807 if (ice_fw_supports_report_dflt_cfg(pi->hw))
1808 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG,
1811 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
1814 dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n");
1819 ice_copy_phy_caps_to_cfg(pi, pcaps, &pi->phy.curr_user_phy_cfg);
1821 /* check if lenient mode is supported and enabled */
1822 if (ice_fw_supports_link_override(pi->hw) &&
1823 !(pcaps->module_compliance_enforcement &
1824 ICE_AQC_MOD_ENFORCE_STRICT_MODE)) {
1825 set_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags);
1827 /* if the FW supports default PHY configuration mode, then the driver
1828 * does not have to apply link override settings. If not,
1829 * initialize user PHY configuration with link override values
1831 if (!ice_fw_supports_report_dflt_cfg(pi->hw) &&
1832 (pf->link_dflt_override.options & ICE_LINK_OVERRIDE_EN)) {
1833 ice_init_phy_cfg_dflt_override(pi);
1838 /* if link default override is not enabled, set user flow control and
1839 * FEC settings based on what get_phy_caps returned
1841 phy->curr_user_fec_req = ice_caps_to_fec_mode(pcaps->caps,
1842 pcaps->link_fec_options);
1843 phy->curr_user_fc_req = ice_caps_to_fc_mode(pcaps->caps);
1846 phy->curr_user_speed_req = ICE_AQ_LINK_SPEED_M;
1847 set_bit(ICE_PHY_INIT_COMPLETE, pf->state);
1854 * ice_configure_phy - configure PHY
1857 * Set the PHY configuration. If the current PHY configuration is the same as
1858 * the curr_user_phy_cfg, then do nothing to avoid link flap. Otherwise
1859 * configure the based get PHY capabilities for topology with media.
1861 static int ice_configure_phy(struct ice_vsi *vsi)
1863 struct device *dev = ice_pf_to_dev(vsi->back);
1864 struct ice_port_info *pi = vsi->port_info;
1865 struct ice_aqc_get_phy_caps_data *pcaps;
1866 struct ice_aqc_set_phy_cfg_data *cfg;
1867 struct ice_phy_info *phy = &pi->phy;
1868 struct ice_pf *pf = vsi->back;
1869 enum ice_status status;
1872 /* Ensure we have media as we cannot configure a medialess port */
1873 if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE))
1876 ice_print_topo_conflict(vsi);
1878 if (phy->link_info.topo_media_conflict == ICE_AQ_LINK_TOPO_UNSUPP_MEDIA)
1881 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags))
1882 return ice_force_phys_link_state(vsi, true);
1884 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
1888 /* Get current PHY config */
1889 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
1892 dev_err(dev, "Failed to get PHY configuration, VSI %d error %s\n",
1893 vsi->vsi_num, ice_stat_str(status));
1898 /* If PHY enable link is configured and configuration has not changed,
1899 * there's nothing to do
1901 if (pcaps->caps & ICE_AQC_PHY_EN_LINK &&
1902 ice_phy_caps_equals_cfg(pcaps, &phy->curr_user_phy_cfg))
1905 /* Use PHY topology as baseline for configuration */
1906 memset(pcaps, 0, sizeof(*pcaps));
1907 if (ice_fw_supports_report_dflt_cfg(pi->hw))
1908 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG,
1911 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
1914 dev_err(dev, "Failed to get PHY caps, VSI %d error %s\n",
1915 vsi->vsi_num, ice_stat_str(status));
1920 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
1926 ice_copy_phy_caps_to_cfg(pi, pcaps, cfg);
1928 /* Speed - If default override pending, use curr_user_phy_cfg set in
1929 * ice_init_phy_user_cfg_ldo.
1931 if (test_and_clear_bit(ICE_LINK_DEFAULT_OVERRIDE_PENDING,
1932 vsi->back->state)) {
1933 cfg->phy_type_low = phy->curr_user_phy_cfg.phy_type_low;
1934 cfg->phy_type_high = phy->curr_user_phy_cfg.phy_type_high;
1936 u64 phy_low = 0, phy_high = 0;
1938 ice_update_phy_type(&phy_low, &phy_high,
1939 pi->phy.curr_user_speed_req);
1940 cfg->phy_type_low = pcaps->phy_type_low & cpu_to_le64(phy_low);
1941 cfg->phy_type_high = pcaps->phy_type_high &
1942 cpu_to_le64(phy_high);
1945 /* Can't provide what was requested; use PHY capabilities */
1946 if (!cfg->phy_type_low && !cfg->phy_type_high) {
1947 cfg->phy_type_low = pcaps->phy_type_low;
1948 cfg->phy_type_high = pcaps->phy_type_high;
1952 ice_cfg_phy_fec(pi, cfg, phy->curr_user_fec_req);
1954 /* Can't provide what was requested; use PHY capabilities */
1955 if (cfg->link_fec_opt !=
1956 (cfg->link_fec_opt & pcaps->link_fec_options)) {
1957 cfg->caps |= pcaps->caps & ICE_AQC_PHY_EN_AUTO_FEC;
1958 cfg->link_fec_opt = pcaps->link_fec_options;
1961 /* Flow Control - always supported; no need to check against
1964 ice_cfg_phy_fc(pi, cfg, phy->curr_user_fc_req);
1966 /* Enable link and link update */
1967 cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT | ICE_AQ_PHY_ENA_LINK;
1969 status = ice_aq_set_phy_cfg(&pf->hw, pi, cfg, NULL);
1971 dev_err(dev, "Failed to set phy config, VSI %d error %s\n",
1972 vsi->vsi_num, ice_stat_str(status));
1983 * ice_check_media_subtask - Check for media
1984 * @pf: pointer to PF struct
1986 * If media is available, then initialize PHY user configuration if it is not
1987 * been, and configure the PHY if the interface is up.
1989 static void ice_check_media_subtask(struct ice_pf *pf)
1991 struct ice_port_info *pi;
1992 struct ice_vsi *vsi;
1995 /* No need to check for media if it's already present */
1996 if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags))
1999 vsi = ice_get_main_vsi(pf);
2003 /* Refresh link info and check if media is present */
2004 pi = vsi->port_info;
2005 err = ice_update_link_info(pi);
2009 if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) {
2010 if (!test_bit(ICE_PHY_INIT_COMPLETE, pf->state))
2011 ice_init_phy_user_cfg(pi);
2013 /* PHY settings are reset on media insertion, reconfigure
2014 * PHY to preserve settings.
2016 if (test_bit(ICE_VSI_DOWN, vsi->state) &&
2017 test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags))
2020 err = ice_configure_phy(vsi);
2022 clear_bit(ICE_FLAG_NO_MEDIA, pf->flags);
2024 /* A Link Status Event will be generated; the event handler
2025 * will complete bringing the interface up
2031 * ice_service_task - manage and run subtasks
2032 * @work: pointer to work_struct contained by the PF struct
2034 static void ice_service_task(struct work_struct *work)
2036 struct ice_pf *pf = container_of(work, struct ice_pf, serv_task);
2037 unsigned long start_time = jiffies;
2041 /* process reset requests first */
2042 ice_reset_subtask(pf);
2044 /* bail if a reset/recovery cycle is pending or rebuild failed */
2045 if (ice_is_reset_in_progress(pf->state) ||
2046 test_bit(ICE_SUSPENDED, pf->state) ||
2047 test_bit(ICE_NEEDS_RESTART, pf->state)) {
2048 ice_service_task_complete(pf);
2052 ice_clean_adminq_subtask(pf);
2053 ice_check_media_subtask(pf);
2054 ice_check_for_hang_subtask(pf);
2055 ice_sync_fltr_subtask(pf);
2056 ice_handle_mdd_event(pf);
2057 ice_watchdog_subtask(pf);
2059 if (ice_is_safe_mode(pf)) {
2060 ice_service_task_complete(pf);
2064 ice_process_vflr_event(pf);
2065 ice_clean_mailboxq_subtask(pf);
2066 ice_sync_arfs_fltrs(pf);
2067 ice_flush_fdir_ctx(pf);
2069 /* Clear ICE_SERVICE_SCHED flag to allow scheduling next event */
2070 ice_service_task_complete(pf);
2072 /* If the tasks have taken longer than one service timer period
2073 * or there is more work to be done, reset the service timer to
2074 * schedule the service task now.
2076 if (time_after(jiffies, (start_time + pf->serv_tmr_period)) ||
2077 test_bit(ICE_MDD_EVENT_PENDING, pf->state) ||
2078 test_bit(ICE_VFLR_EVENT_PENDING, pf->state) ||
2079 test_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state) ||
2080 test_bit(ICE_FD_VF_FLUSH_CTX, pf->state) ||
2081 test_bit(ICE_ADMINQ_EVENT_PENDING, pf->state))
2082 mod_timer(&pf->serv_tmr, jiffies);
2086 * ice_set_ctrlq_len - helper function to set controlq length
2087 * @hw: pointer to the HW instance
2089 static void ice_set_ctrlq_len(struct ice_hw *hw)
2091 hw->adminq.num_rq_entries = ICE_AQ_LEN;
2092 hw->adminq.num_sq_entries = ICE_AQ_LEN;
2093 hw->adminq.rq_buf_size = ICE_AQ_MAX_BUF_LEN;
2094 hw->adminq.sq_buf_size = ICE_AQ_MAX_BUF_LEN;
2095 hw->mailboxq.num_rq_entries = PF_MBX_ARQLEN_ARQLEN_M;
2096 hw->mailboxq.num_sq_entries = ICE_MBXSQ_LEN;
2097 hw->mailboxq.rq_buf_size = ICE_MBXQ_MAX_BUF_LEN;
2098 hw->mailboxq.sq_buf_size = ICE_MBXQ_MAX_BUF_LEN;
2102 * ice_schedule_reset - schedule a reset
2103 * @pf: board private structure
2104 * @reset: reset being requested
2106 int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset)
2108 struct device *dev = ice_pf_to_dev(pf);
2110 /* bail out if earlier reset has failed */
2111 if (test_bit(ICE_RESET_FAILED, pf->state)) {
2112 dev_dbg(dev, "earlier reset has failed\n");
2115 /* bail if reset/recovery already in progress */
2116 if (ice_is_reset_in_progress(pf->state)) {
2117 dev_dbg(dev, "Reset already in progress\n");
2123 set_bit(ICE_PFR_REQ, pf->state);
2125 case ICE_RESET_CORER:
2126 set_bit(ICE_CORER_REQ, pf->state);
2128 case ICE_RESET_GLOBR:
2129 set_bit(ICE_GLOBR_REQ, pf->state);
2135 ice_service_task_schedule(pf);
2140 * ice_irq_affinity_notify - Callback for affinity changes
2141 * @notify: context as to what irq was changed
2142 * @mask: the new affinity mask
2144 * This is a callback function used by the irq_set_affinity_notifier function
2145 * so that we may register to receive changes to the irq affinity masks.
2148 ice_irq_affinity_notify(struct irq_affinity_notify *notify,
2149 const cpumask_t *mask)
2151 struct ice_q_vector *q_vector =
2152 container_of(notify, struct ice_q_vector, affinity_notify);
2154 cpumask_copy(&q_vector->affinity_mask, mask);
2158 * ice_irq_affinity_release - Callback for affinity notifier release
2159 * @ref: internal core kernel usage
2161 * This is a callback function used by the irq_set_affinity_notifier function
2162 * to inform the current notification subscriber that they will no longer
2163 * receive notifications.
2165 static void ice_irq_affinity_release(struct kref __always_unused *ref) {}
2168 * ice_vsi_ena_irq - Enable IRQ for the given VSI
2169 * @vsi: the VSI being configured
2171 static int ice_vsi_ena_irq(struct ice_vsi *vsi)
2173 struct ice_hw *hw = &vsi->back->hw;
2176 ice_for_each_q_vector(vsi, i)
2177 ice_irq_dynamic_ena(hw, vsi, vsi->q_vectors[i]);
2184 * ice_vsi_req_irq_msix - get MSI-X vectors from the OS for the VSI
2185 * @vsi: the VSI being configured
2186 * @basename: name for the vector
2188 static int ice_vsi_req_irq_msix(struct ice_vsi *vsi, char *basename)
2190 int q_vectors = vsi->num_q_vectors;
2191 struct ice_pf *pf = vsi->back;
2192 int base = vsi->base_vector;
2199 dev = ice_pf_to_dev(pf);
2200 for (vector = 0; vector < q_vectors; vector++) {
2201 struct ice_q_vector *q_vector = vsi->q_vectors[vector];
2203 irq_num = pf->msix_entries[base + vector].vector;
2205 if (q_vector->tx.ring && q_vector->rx.ring) {
2206 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
2207 "%s-%s-%d", basename, "TxRx", rx_int_idx++);
2209 } else if (q_vector->rx.ring) {
2210 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
2211 "%s-%s-%d", basename, "rx", rx_int_idx++);
2212 } else if (q_vector->tx.ring) {
2213 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
2214 "%s-%s-%d", basename, "tx", tx_int_idx++);
2216 /* skip this unused q_vector */
2219 if (vsi->type == ICE_VSI_CTRL && vsi->vf_id != ICE_INVAL_VFID)
2220 err = devm_request_irq(dev, irq_num, vsi->irq_handler,
2221 IRQF_SHARED, q_vector->name,
2224 err = devm_request_irq(dev, irq_num, vsi->irq_handler,
2225 0, q_vector->name, q_vector);
2227 netdev_err(vsi->netdev, "MSIX request_irq failed, error: %d\n",
2232 /* register for affinity change notifications */
2233 if (!IS_ENABLED(CONFIG_RFS_ACCEL)) {
2234 struct irq_affinity_notify *affinity_notify;
2236 affinity_notify = &q_vector->affinity_notify;
2237 affinity_notify->notify = ice_irq_affinity_notify;
2238 affinity_notify->release = ice_irq_affinity_release;
2239 irq_set_affinity_notifier(irq_num, affinity_notify);
2242 /* assign the mask for this irq */
2243 irq_set_affinity_hint(irq_num, &q_vector->affinity_mask);
2246 vsi->irqs_ready = true;
2252 irq_num = pf->msix_entries[base + vector].vector;
2253 if (!IS_ENABLED(CONFIG_RFS_ACCEL))
2254 irq_set_affinity_notifier(irq_num, NULL);
2255 irq_set_affinity_hint(irq_num, NULL);
2256 devm_free_irq(dev, irq_num, &vsi->q_vectors[vector]);
2262 * ice_xdp_alloc_setup_rings - Allocate and setup Tx rings for XDP
2263 * @vsi: VSI to setup Tx rings used by XDP
2265 * Return 0 on success and negative value on error
2267 static int ice_xdp_alloc_setup_rings(struct ice_vsi *vsi)
2269 struct device *dev = ice_pf_to_dev(vsi->back);
2272 for (i = 0; i < vsi->num_xdp_txq; i++) {
2273 u16 xdp_q_idx = vsi->alloc_txq + i;
2274 struct ice_ring *xdp_ring;
2276 xdp_ring = kzalloc(sizeof(*xdp_ring), GFP_KERNEL);
2279 goto free_xdp_rings;
2281 xdp_ring->q_index = xdp_q_idx;
2282 xdp_ring->reg_idx = vsi->txq_map[xdp_q_idx];
2283 xdp_ring->ring_active = false;
2284 xdp_ring->vsi = vsi;
2285 xdp_ring->netdev = NULL;
2286 xdp_ring->dev = dev;
2287 xdp_ring->count = vsi->num_tx_desc;
2288 WRITE_ONCE(vsi->xdp_rings[i], xdp_ring);
2289 if (ice_setup_tx_ring(xdp_ring))
2290 goto free_xdp_rings;
2291 ice_set_ring_xdp(xdp_ring);
2292 xdp_ring->xsk_pool = ice_xsk_pool(xdp_ring);
2299 if (vsi->xdp_rings[i] && vsi->xdp_rings[i]->desc)
2300 ice_free_tx_ring(vsi->xdp_rings[i]);
2305 * ice_vsi_assign_bpf_prog - set or clear bpf prog pointer on VSI
2306 * @vsi: VSI to set the bpf prog on
2307 * @prog: the bpf prog pointer
2309 static void ice_vsi_assign_bpf_prog(struct ice_vsi *vsi, struct bpf_prog *prog)
2311 struct bpf_prog *old_prog;
2314 old_prog = xchg(&vsi->xdp_prog, prog);
2316 bpf_prog_put(old_prog);
2318 ice_for_each_rxq(vsi, i)
2319 WRITE_ONCE(vsi->rx_rings[i]->xdp_prog, vsi->xdp_prog);
2323 * ice_prepare_xdp_rings - Allocate, configure and setup Tx rings for XDP
2324 * @vsi: VSI to bring up Tx rings used by XDP
2325 * @prog: bpf program that will be assigned to VSI
2327 * Return 0 on success and negative value on error
2329 int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog)
2331 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };
2332 int xdp_rings_rem = vsi->num_xdp_txq;
2333 struct ice_pf *pf = vsi->back;
2334 struct ice_qs_cfg xdp_qs_cfg = {
2335 .qs_mutex = &pf->avail_q_mutex,
2336 .pf_map = pf->avail_txqs,
2337 .pf_map_size = pf->max_pf_txqs,
2338 .q_count = vsi->num_xdp_txq,
2339 .scatter_count = ICE_MAX_SCATTER_TXQS,
2340 .vsi_map = vsi->txq_map,
2341 .vsi_map_offset = vsi->alloc_txq,
2342 .mapping_mode = ICE_VSI_MAP_CONTIG
2344 enum ice_status status;
2348 dev = ice_pf_to_dev(pf);
2349 vsi->xdp_rings = devm_kcalloc(dev, vsi->num_xdp_txq,
2350 sizeof(*vsi->xdp_rings), GFP_KERNEL);
2351 if (!vsi->xdp_rings)
2354 vsi->xdp_mapping_mode = xdp_qs_cfg.mapping_mode;
2355 if (__ice_vsi_get_qs(&xdp_qs_cfg))
2358 if (ice_xdp_alloc_setup_rings(vsi))
2359 goto clear_xdp_rings;
2361 /* follow the logic from ice_vsi_map_rings_to_vectors */
2362 ice_for_each_q_vector(vsi, v_idx) {
2363 struct ice_q_vector *q_vector = vsi->q_vectors[v_idx];
2364 int xdp_rings_per_v, q_id, q_base;
2366 xdp_rings_per_v = DIV_ROUND_UP(xdp_rings_rem,
2367 vsi->num_q_vectors - v_idx);
2368 q_base = vsi->num_xdp_txq - xdp_rings_rem;
2370 for (q_id = q_base; q_id < (q_base + xdp_rings_per_v); q_id++) {
2371 struct ice_ring *xdp_ring = vsi->xdp_rings[q_id];
2373 xdp_ring->q_vector = q_vector;
2374 xdp_ring->next = q_vector->tx.ring;
2375 q_vector->tx.ring = xdp_ring;
2377 xdp_rings_rem -= xdp_rings_per_v;
2380 /* omit the scheduler update if in reset path; XDP queues will be
2381 * taken into account at the end of ice_vsi_rebuild, where
2382 * ice_cfg_vsi_lan is being called
2384 if (ice_is_reset_in_progress(pf->state))
2387 /* tell the Tx scheduler that right now we have
2390 for (i = 0; i < vsi->tc_cfg.numtc; i++)
2391 max_txqs[i] = vsi->num_txq + vsi->num_xdp_txq;
2393 status = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc,
2396 dev_err(dev, "Failed VSI LAN queue config for XDP, error: %s\n",
2397 ice_stat_str(status));
2398 goto clear_xdp_rings;
2400 ice_vsi_assign_bpf_prog(vsi, prog);
2404 for (i = 0; i < vsi->num_xdp_txq; i++)
2405 if (vsi->xdp_rings[i]) {
2406 kfree_rcu(vsi->xdp_rings[i], rcu);
2407 vsi->xdp_rings[i] = NULL;
2411 mutex_lock(&pf->avail_q_mutex);
2412 for (i = 0; i < vsi->num_xdp_txq; i++) {
2413 clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs);
2414 vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX;
2416 mutex_unlock(&pf->avail_q_mutex);
2418 devm_kfree(dev, vsi->xdp_rings);
2423 * ice_destroy_xdp_rings - undo the configuration made by ice_prepare_xdp_rings
2424 * @vsi: VSI to remove XDP rings
2426 * Detach XDP rings from irq vectors, clean up the PF bitmap and free
2429 int ice_destroy_xdp_rings(struct ice_vsi *vsi)
2431 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };
2432 struct ice_pf *pf = vsi->back;
2435 /* q_vectors are freed in reset path so there's no point in detaching
2436 * rings; in case of rebuild being triggered not from reset bits
2437 * in pf->state won't be set, so additionally check first q_vector
2440 if (ice_is_reset_in_progress(pf->state) || !vsi->q_vectors[0])
2443 ice_for_each_q_vector(vsi, v_idx) {
2444 struct ice_q_vector *q_vector = vsi->q_vectors[v_idx];
2445 struct ice_ring *ring;
2447 ice_for_each_ring(ring, q_vector->tx)
2448 if (!ring->tx_buf || !ice_ring_is_xdp(ring))
2451 /* restore the value of last node prior to XDP setup */
2452 q_vector->tx.ring = ring;
2456 mutex_lock(&pf->avail_q_mutex);
2457 for (i = 0; i < vsi->num_xdp_txq; i++) {
2458 clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs);
2459 vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX;
2461 mutex_unlock(&pf->avail_q_mutex);
2463 for (i = 0; i < vsi->num_xdp_txq; i++)
2464 if (vsi->xdp_rings[i]) {
2465 if (vsi->xdp_rings[i]->desc)
2466 ice_free_tx_ring(vsi->xdp_rings[i]);
2467 kfree_rcu(vsi->xdp_rings[i], rcu);
2468 vsi->xdp_rings[i] = NULL;
2471 devm_kfree(ice_pf_to_dev(pf), vsi->xdp_rings);
2472 vsi->xdp_rings = NULL;
2474 if (ice_is_reset_in_progress(pf->state) || !vsi->q_vectors[0])
2477 ice_vsi_assign_bpf_prog(vsi, NULL);
2479 /* notify Tx scheduler that we destroyed XDP queues and bring
2480 * back the old number of child nodes
2482 for (i = 0; i < vsi->tc_cfg.numtc; i++)
2483 max_txqs[i] = vsi->num_txq;
2485 /* change number of XDP Tx queues to 0 */
2486 vsi->num_xdp_txq = 0;
2488 return ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc,
2493 * ice_vsi_rx_napi_schedule - Schedule napi on RX queues from VSI
2494 * @vsi: VSI to schedule napi on
2496 static void ice_vsi_rx_napi_schedule(struct ice_vsi *vsi)
2500 ice_for_each_rxq(vsi, i) {
2501 struct ice_ring *rx_ring = vsi->rx_rings[i];
2503 if (rx_ring->xsk_pool)
2504 napi_schedule(&rx_ring->q_vector->napi);
2509 * ice_xdp_setup_prog - Add or remove XDP eBPF program
2510 * @vsi: VSI to setup XDP for
2511 * @prog: XDP program
2512 * @extack: netlink extended ack
2515 ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog,
2516 struct netlink_ext_ack *extack)
2518 int frame_size = vsi->netdev->mtu + ICE_ETH_PKT_HDR_PAD;
2519 bool if_running = netif_running(vsi->netdev);
2520 int ret = 0, xdp_ring_err = 0;
2522 if (frame_size > vsi->rx_buf_len) {
2523 NL_SET_ERR_MSG_MOD(extack, "MTU too large for loading XDP");
2527 /* need to stop netdev while setting up the program for Rx rings */
2528 if (if_running && !test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {
2529 ret = ice_down(vsi);
2531 NL_SET_ERR_MSG_MOD(extack, "Preparing device for XDP attach failed");
2536 if (!ice_is_xdp_ena_vsi(vsi) && prog) {
2537 vsi->num_xdp_txq = vsi->alloc_rxq;
2538 xdp_ring_err = ice_prepare_xdp_rings(vsi, prog);
2540 NL_SET_ERR_MSG_MOD(extack, "Setting up XDP Tx resources failed");
2541 } else if (ice_is_xdp_ena_vsi(vsi) && !prog) {
2542 xdp_ring_err = ice_destroy_xdp_rings(vsi);
2544 NL_SET_ERR_MSG_MOD(extack, "Freeing XDP Tx resources failed");
2546 ice_vsi_assign_bpf_prog(vsi, prog);
2553 ice_vsi_rx_napi_schedule(vsi);
2555 return (ret || xdp_ring_err) ? -ENOMEM : 0;
2559 * ice_xdp_safe_mode - XDP handler for safe mode
2563 static int ice_xdp_safe_mode(struct net_device __always_unused *dev,
2564 struct netdev_bpf *xdp)
2566 NL_SET_ERR_MSG_MOD(xdp->extack,
2567 "Please provide working DDP firmware package in order to use XDP\n"
2568 "Refer to Documentation/networking/device_drivers/ethernet/intel/ice.rst");
2573 * ice_xdp - implements XDP handler
2577 static int ice_xdp(struct net_device *dev, struct netdev_bpf *xdp)
2579 struct ice_netdev_priv *np = netdev_priv(dev);
2580 struct ice_vsi *vsi = np->vsi;
2582 if (vsi->type != ICE_VSI_PF) {
2583 NL_SET_ERR_MSG_MOD(xdp->extack, "XDP can be loaded only on PF VSI");
2587 switch (xdp->command) {
2588 case XDP_SETUP_PROG:
2589 return ice_xdp_setup_prog(vsi, xdp->prog, xdp->extack);
2590 case XDP_SETUP_XSK_POOL:
2591 return ice_xsk_pool_setup(vsi, xdp->xsk.pool,
2599 * ice_ena_misc_vector - enable the non-queue interrupts
2600 * @pf: board private structure
2602 static void ice_ena_misc_vector(struct ice_pf *pf)
2604 struct ice_hw *hw = &pf->hw;
2607 /* Disable anti-spoof detection interrupt to prevent spurious event
2608 * interrupts during a function reset. Anti-spoof functionally is
2611 val = rd32(hw, GL_MDCK_TX_TDPU);
2612 val |= GL_MDCK_TX_TDPU_RCU_ANTISPOOF_ITR_DIS_M;
2613 wr32(hw, GL_MDCK_TX_TDPU, val);
2615 /* clear things first */
2616 wr32(hw, PFINT_OICR_ENA, 0); /* disable all */
2617 rd32(hw, PFINT_OICR); /* read to clear */
2619 val = (PFINT_OICR_ECC_ERR_M |
2620 PFINT_OICR_MAL_DETECT_M |
2622 PFINT_OICR_PCI_EXCEPTION_M |
2624 PFINT_OICR_HMC_ERR_M |
2625 PFINT_OICR_PE_CRITERR_M);
2627 wr32(hw, PFINT_OICR_ENA, val);
2629 /* SW_ITR_IDX = 0, but don't change INTENA */
2630 wr32(hw, GLINT_DYN_CTL(pf->oicr_idx),
2631 GLINT_DYN_CTL_SW_ITR_INDX_M | GLINT_DYN_CTL_INTENA_MSK_M);
2635 * ice_misc_intr - misc interrupt handler
2636 * @irq: interrupt number
2637 * @data: pointer to a q_vector
2639 static irqreturn_t ice_misc_intr(int __always_unused irq, void *data)
2641 struct ice_pf *pf = (struct ice_pf *)data;
2642 struct ice_hw *hw = &pf->hw;
2643 irqreturn_t ret = IRQ_NONE;
2647 dev = ice_pf_to_dev(pf);
2648 set_bit(ICE_ADMINQ_EVENT_PENDING, pf->state);
2649 set_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state);
2651 oicr = rd32(hw, PFINT_OICR);
2652 ena_mask = rd32(hw, PFINT_OICR_ENA);
2654 if (oicr & PFINT_OICR_SWINT_M) {
2655 ena_mask &= ~PFINT_OICR_SWINT_M;
2659 if (oicr & PFINT_OICR_MAL_DETECT_M) {
2660 ena_mask &= ~PFINT_OICR_MAL_DETECT_M;
2661 set_bit(ICE_MDD_EVENT_PENDING, pf->state);
2663 if (oicr & PFINT_OICR_VFLR_M) {
2664 /* disable any further VFLR event notifications */
2665 if (test_bit(ICE_VF_RESETS_DISABLED, pf->state)) {
2666 u32 reg = rd32(hw, PFINT_OICR_ENA);
2668 reg &= ~PFINT_OICR_VFLR_M;
2669 wr32(hw, PFINT_OICR_ENA, reg);
2671 ena_mask &= ~PFINT_OICR_VFLR_M;
2672 set_bit(ICE_VFLR_EVENT_PENDING, pf->state);
2676 if (oicr & PFINT_OICR_GRST_M) {
2679 /* we have a reset warning */
2680 ena_mask &= ~PFINT_OICR_GRST_M;
2681 reset = (rd32(hw, GLGEN_RSTAT) & GLGEN_RSTAT_RESET_TYPE_M) >>
2682 GLGEN_RSTAT_RESET_TYPE_S;
2684 if (reset == ICE_RESET_CORER)
2686 else if (reset == ICE_RESET_GLOBR)
2688 else if (reset == ICE_RESET_EMPR)
2691 dev_dbg(dev, "Invalid reset type %d\n", reset);
2693 /* If a reset cycle isn't already in progress, we set a bit in
2694 * pf->state so that the service task can start a reset/rebuild.
2695 * We also make note of which reset happened so that peer
2696 * devices/drivers can be informed.
2698 if (!test_and_set_bit(ICE_RESET_OICR_RECV, pf->state)) {
2699 if (reset == ICE_RESET_CORER)
2700 set_bit(ICE_CORER_RECV, pf->state);
2701 else if (reset == ICE_RESET_GLOBR)
2702 set_bit(ICE_GLOBR_RECV, pf->state);
2704 set_bit(ICE_EMPR_RECV, pf->state);
2706 /* There are couple of different bits at play here.
2707 * hw->reset_ongoing indicates whether the hardware is
2708 * in reset. This is set to true when a reset interrupt
2709 * is received and set back to false after the driver
2710 * has determined that the hardware is out of reset.
2712 * ICE_RESET_OICR_RECV in pf->state indicates
2713 * that a post reset rebuild is required before the
2714 * driver is operational again. This is set above.
2716 * As this is the start of the reset/rebuild cycle, set
2717 * both to indicate that.
2719 hw->reset_ongoing = true;
2723 if (oicr & PFINT_OICR_HMC_ERR_M) {
2724 ena_mask &= ~PFINT_OICR_HMC_ERR_M;
2725 dev_dbg(dev, "HMC Error interrupt - info 0x%x, data 0x%x\n",
2726 rd32(hw, PFHMC_ERRORINFO),
2727 rd32(hw, PFHMC_ERRORDATA));
2730 /* Report any remaining unexpected interrupts */
2733 dev_dbg(dev, "unhandled interrupt oicr=0x%08x\n", oicr);
2734 /* If a critical error is pending there is no choice but to
2737 if (oicr & (PFINT_OICR_PE_CRITERR_M |
2738 PFINT_OICR_PCI_EXCEPTION_M |
2739 PFINT_OICR_ECC_ERR_M)) {
2740 set_bit(ICE_PFR_REQ, pf->state);
2741 ice_service_task_schedule(pf);
2746 ice_service_task_schedule(pf);
2747 ice_irq_dynamic_ena(hw, NULL, NULL);
2753 * ice_dis_ctrlq_interrupts - disable control queue interrupts
2754 * @hw: pointer to HW structure
2756 static void ice_dis_ctrlq_interrupts(struct ice_hw *hw)
2758 /* disable Admin queue Interrupt causes */
2759 wr32(hw, PFINT_FW_CTL,
2760 rd32(hw, PFINT_FW_CTL) & ~PFINT_FW_CTL_CAUSE_ENA_M);
2762 /* disable Mailbox queue Interrupt causes */
2763 wr32(hw, PFINT_MBX_CTL,
2764 rd32(hw, PFINT_MBX_CTL) & ~PFINT_MBX_CTL_CAUSE_ENA_M);
2766 /* disable Control queue Interrupt causes */
2767 wr32(hw, PFINT_OICR_CTL,
2768 rd32(hw, PFINT_OICR_CTL) & ~PFINT_OICR_CTL_CAUSE_ENA_M);
2774 * ice_free_irq_msix_misc - Unroll misc vector setup
2775 * @pf: board private structure
2777 static void ice_free_irq_msix_misc(struct ice_pf *pf)
2779 struct ice_hw *hw = &pf->hw;
2781 ice_dis_ctrlq_interrupts(hw);
2783 /* disable OICR interrupt */
2784 wr32(hw, PFINT_OICR_ENA, 0);
2787 if (pf->msix_entries) {
2788 synchronize_irq(pf->msix_entries[pf->oicr_idx].vector);
2789 devm_free_irq(ice_pf_to_dev(pf),
2790 pf->msix_entries[pf->oicr_idx].vector, pf);
2793 pf->num_avail_sw_msix += 1;
2794 ice_free_res(pf->irq_tracker, pf->oicr_idx, ICE_RES_MISC_VEC_ID);
2798 * ice_ena_ctrlq_interrupts - enable control queue interrupts
2799 * @hw: pointer to HW structure
2800 * @reg_idx: HW vector index to associate the control queue interrupts with
2802 static void ice_ena_ctrlq_interrupts(struct ice_hw *hw, u16 reg_idx)
2806 val = ((reg_idx & PFINT_OICR_CTL_MSIX_INDX_M) |
2807 PFINT_OICR_CTL_CAUSE_ENA_M);
2808 wr32(hw, PFINT_OICR_CTL, val);
2810 /* enable Admin queue Interrupt causes */
2811 val = ((reg_idx & PFINT_FW_CTL_MSIX_INDX_M) |
2812 PFINT_FW_CTL_CAUSE_ENA_M);
2813 wr32(hw, PFINT_FW_CTL, val);
2815 /* enable Mailbox queue Interrupt causes */
2816 val = ((reg_idx & PFINT_MBX_CTL_MSIX_INDX_M) |
2817 PFINT_MBX_CTL_CAUSE_ENA_M);
2818 wr32(hw, PFINT_MBX_CTL, val);
2824 * ice_req_irq_msix_misc - Setup the misc vector to handle non queue events
2825 * @pf: board private structure
2827 * This sets up the handler for MSIX 0, which is used to manage the
2828 * non-queue interrupts, e.g. AdminQ and errors. This is not used
2829 * when in MSI or Legacy interrupt mode.
2831 static int ice_req_irq_msix_misc(struct ice_pf *pf)
2833 struct device *dev = ice_pf_to_dev(pf);
2834 struct ice_hw *hw = &pf->hw;
2835 int oicr_idx, err = 0;
2837 if (!pf->int_name[0])
2838 snprintf(pf->int_name, sizeof(pf->int_name) - 1, "%s-%s:misc",
2839 dev_driver_string(dev), dev_name(dev));
2841 /* Do not request IRQ but do enable OICR interrupt since settings are
2842 * lost during reset. Note that this function is called only during
2843 * rebuild path and not while reset is in progress.
2845 if (ice_is_reset_in_progress(pf->state))
2848 /* reserve one vector in irq_tracker for misc interrupts */
2849 oicr_idx = ice_get_res(pf, pf->irq_tracker, 1, ICE_RES_MISC_VEC_ID);
2853 pf->num_avail_sw_msix -= 1;
2854 pf->oicr_idx = (u16)oicr_idx;
2856 err = devm_request_irq(dev, pf->msix_entries[pf->oicr_idx].vector,
2857 ice_misc_intr, 0, pf->int_name, pf);
2859 dev_err(dev, "devm_request_irq for %s failed: %d\n",
2861 ice_free_res(pf->irq_tracker, 1, ICE_RES_MISC_VEC_ID);
2862 pf->num_avail_sw_msix += 1;
2867 ice_ena_misc_vector(pf);
2869 ice_ena_ctrlq_interrupts(hw, pf->oicr_idx);
2870 wr32(hw, GLINT_ITR(ICE_RX_ITR, pf->oicr_idx),
2871 ITR_REG_ALIGN(ICE_ITR_8K) >> ICE_ITR_GRAN_S);
2874 ice_irq_dynamic_ena(hw, NULL, NULL);
2880 * ice_napi_add - register NAPI handler for the VSI
2881 * @vsi: VSI for which NAPI handler is to be registered
2883 * This function is only called in the driver's load path. Registering the NAPI
2884 * handler is done in ice_vsi_alloc_q_vector() for all other cases (i.e. resume,
2885 * reset/rebuild, etc.)
2887 static void ice_napi_add(struct ice_vsi *vsi)
2894 ice_for_each_q_vector(vsi, v_idx)
2895 netif_napi_add(vsi->netdev, &vsi->q_vectors[v_idx]->napi,
2896 ice_napi_poll, NAPI_POLL_WEIGHT);
2900 * ice_set_ops - set netdev and ethtools ops for the given netdev
2901 * @netdev: netdev instance
2903 static void ice_set_ops(struct net_device *netdev)
2905 struct ice_pf *pf = ice_netdev_to_pf(netdev);
2907 if (ice_is_safe_mode(pf)) {
2908 netdev->netdev_ops = &ice_netdev_safe_mode_ops;
2909 ice_set_ethtool_safe_mode_ops(netdev);
2913 netdev->netdev_ops = &ice_netdev_ops;
2914 netdev->udp_tunnel_nic_info = &pf->hw.udp_tunnel_nic;
2915 ice_set_ethtool_ops(netdev);
2919 * ice_set_netdev_features - set features for the given netdev
2920 * @netdev: netdev instance
2922 static void ice_set_netdev_features(struct net_device *netdev)
2924 struct ice_pf *pf = ice_netdev_to_pf(netdev);
2925 netdev_features_t csumo_features;
2926 netdev_features_t vlano_features;
2927 netdev_features_t dflt_features;
2928 netdev_features_t tso_features;
2930 if (ice_is_safe_mode(pf)) {
2932 netdev->features = NETIF_F_SG | NETIF_F_HIGHDMA;
2933 netdev->hw_features = netdev->features;
2937 dflt_features = NETIF_F_SG |
2942 csumo_features = NETIF_F_RXCSUM |
2947 vlano_features = NETIF_F_HW_VLAN_CTAG_FILTER |
2948 NETIF_F_HW_VLAN_CTAG_TX |
2949 NETIF_F_HW_VLAN_CTAG_RX;
2951 tso_features = NETIF_F_TSO |
2955 NETIF_F_GSO_UDP_TUNNEL |
2956 NETIF_F_GSO_GRE_CSUM |
2957 NETIF_F_GSO_UDP_TUNNEL_CSUM |
2958 NETIF_F_GSO_PARTIAL |
2959 NETIF_F_GSO_IPXIP4 |
2960 NETIF_F_GSO_IPXIP6 |
2963 netdev->gso_partial_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM |
2964 NETIF_F_GSO_GRE_CSUM;
2965 /* set features that user can change */
2966 netdev->hw_features = dflt_features | csumo_features |
2967 vlano_features | tso_features;
2969 /* add support for HW_CSUM on packets with MPLS header */
2970 netdev->mpls_features = NETIF_F_HW_CSUM;
2972 /* enable features */
2973 netdev->features |= netdev->hw_features;
2974 /* encap and VLAN devices inherit default, csumo and tso features */
2975 netdev->hw_enc_features |= dflt_features | csumo_features |
2977 netdev->vlan_features |= dflt_features | csumo_features |
2982 * ice_cfg_netdev - Allocate, configure and register a netdev
2983 * @vsi: the VSI associated with the new netdev
2985 * Returns 0 on success, negative value on failure
2987 static int ice_cfg_netdev(struct ice_vsi *vsi)
2989 struct ice_pf *pf = vsi->back;
2990 struct ice_netdev_priv *np;
2991 struct net_device *netdev;
2992 u8 mac_addr[ETH_ALEN];
2994 netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq,
2999 set_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
3000 vsi->netdev = netdev;
3001 np = netdev_priv(netdev);
3004 ice_set_netdev_features(netdev);
3006 ice_set_ops(netdev);
3008 if (vsi->type == ICE_VSI_PF) {
3009 SET_NETDEV_DEV(netdev, ice_pf_to_dev(pf));
3010 ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr);
3011 ether_addr_copy(netdev->dev_addr, mac_addr);
3012 ether_addr_copy(netdev->perm_addr, mac_addr);
3015 netdev->priv_flags |= IFF_UNICAST_FLT;
3017 /* Setup netdev TC information */
3018 ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc);
3020 /* setup watchdog timeout value to be 5 second */
3021 netdev->watchdog_timeo = 5 * HZ;
3023 netdev->min_mtu = ETH_MIN_MTU;
3024 netdev->max_mtu = ICE_MAX_MTU;
3030 * ice_fill_rss_lut - Fill the RSS lookup table with default values
3031 * @lut: Lookup table
3032 * @rss_table_size: Lookup table size
3033 * @rss_size: Range of queue number for hashing
3035 void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size)
3039 for (i = 0; i < rss_table_size; i++)
3040 lut[i] = i % rss_size;
3044 * ice_pf_vsi_setup - Set up a PF VSI
3045 * @pf: board private structure
3046 * @pi: pointer to the port_info instance
3048 * Returns pointer to the successfully allocated VSI software struct
3049 * on success, otherwise returns NULL on failure.
3051 static struct ice_vsi *
3052 ice_pf_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)
3054 return ice_vsi_setup(pf, pi, ICE_VSI_PF, ICE_INVAL_VFID);
3058 * ice_ctrl_vsi_setup - Set up a control VSI
3059 * @pf: board private structure
3060 * @pi: pointer to the port_info instance
3062 * Returns pointer to the successfully allocated VSI software struct
3063 * on success, otherwise returns NULL on failure.
3065 static struct ice_vsi *
3066 ice_ctrl_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)
3068 return ice_vsi_setup(pf, pi, ICE_VSI_CTRL, ICE_INVAL_VFID);
3072 * ice_lb_vsi_setup - Set up a loopback VSI
3073 * @pf: board private structure
3074 * @pi: pointer to the port_info instance
3076 * Returns pointer to the successfully allocated VSI software struct
3077 * on success, otherwise returns NULL on failure.
3080 ice_lb_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)
3082 return ice_vsi_setup(pf, pi, ICE_VSI_LB, ICE_INVAL_VFID);
3086 * ice_vlan_rx_add_vid - Add a VLAN ID filter to HW offload
3087 * @netdev: network interface to be adjusted
3088 * @proto: unused protocol
3089 * @vid: VLAN ID to be added
3091 * net_device_ops implementation for adding VLAN IDs
3094 ice_vlan_rx_add_vid(struct net_device *netdev, __always_unused __be16 proto,
3097 struct ice_netdev_priv *np = netdev_priv(netdev);
3098 struct ice_vsi *vsi = np->vsi;
3101 /* VLAN 0 is added by default during load/reset */
3105 /* Enable VLAN pruning when a VLAN other than 0 is added */
3106 if (!ice_vsi_is_vlan_pruning_ena(vsi)) {
3107 ret = ice_cfg_vlan_pruning(vsi, true, false);
3112 /* Add a switch rule for this VLAN ID so its corresponding VLAN tagged
3113 * packets aren't pruned by the device's internal switch on Rx
3115 ret = ice_vsi_add_vlan(vsi, vid, ICE_FWD_TO_VSI);
3117 set_bit(ICE_VSI_VLAN_FLTR_CHANGED, vsi->state);
3123 * ice_vlan_rx_kill_vid - Remove a VLAN ID filter from HW offload
3124 * @netdev: network interface to be adjusted
3125 * @proto: unused protocol
3126 * @vid: VLAN ID to be removed
3128 * net_device_ops implementation for removing VLAN IDs
3131 ice_vlan_rx_kill_vid(struct net_device *netdev, __always_unused __be16 proto,
3134 struct ice_netdev_priv *np = netdev_priv(netdev);
3135 struct ice_vsi *vsi = np->vsi;
3138 /* don't allow removal of VLAN 0 */
3142 /* Make sure ice_vsi_kill_vlan is successful before updating VLAN
3145 ret = ice_vsi_kill_vlan(vsi, vid);
3149 /* Disable pruning when VLAN 0 is the only VLAN rule */
3150 if (vsi->num_vlan == 1 && ice_vsi_is_vlan_pruning_ena(vsi))
3151 ret = ice_cfg_vlan_pruning(vsi, false, false);
3153 set_bit(ICE_VSI_VLAN_FLTR_CHANGED, vsi->state);
3158 * ice_setup_pf_sw - Setup the HW switch on startup or after reset
3159 * @pf: board private structure
3161 * Returns 0 on success, negative value on failure
3163 static int ice_setup_pf_sw(struct ice_pf *pf)
3165 struct ice_vsi *vsi;
3168 if (ice_is_reset_in_progress(pf->state))
3171 vsi = ice_pf_vsi_setup(pf, pf->hw.port_info);
3175 status = ice_cfg_netdev(vsi);
3178 goto unroll_vsi_setup;
3180 /* netdev has to be configured before setting frame size */
3181 ice_vsi_cfg_frame_size(vsi);
3183 /* Setup DCB netlink interface */
3184 ice_dcbnl_setup(vsi);
3186 /* registering the NAPI handler requires both the queues and
3187 * netdev to be created, which are done in ice_pf_vsi_setup()
3188 * and ice_cfg_netdev() respectively
3192 status = ice_set_cpu_rx_rmap(vsi);
3194 dev_err(ice_pf_to_dev(pf), "Failed to set CPU Rx map VSI %d error %d\n",
3195 vsi->vsi_num, status);
3197 goto unroll_napi_add;
3199 status = ice_init_mac_fltr(pf);
3201 goto free_cpu_rx_map;
3206 ice_free_cpu_rx_rmap(vsi);
3212 clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
3213 free_netdev(vsi->netdev);
3219 ice_vsi_release(vsi);
3224 * ice_get_avail_q_count - Get count of queues in use
3225 * @pf_qmap: bitmap to get queue use count from
3226 * @lock: pointer to a mutex that protects access to pf_qmap
3227 * @size: size of the bitmap
3230 ice_get_avail_q_count(unsigned long *pf_qmap, struct mutex *lock, u16 size)
3236 for_each_clear_bit(bit, pf_qmap, size)
3244 * ice_get_avail_txq_count - Get count of Tx queues in use
3245 * @pf: pointer to an ice_pf instance
3247 u16 ice_get_avail_txq_count(struct ice_pf *pf)
3249 return ice_get_avail_q_count(pf->avail_txqs, &pf->avail_q_mutex,
3254 * ice_get_avail_rxq_count - Get count of Rx queues in use
3255 * @pf: pointer to an ice_pf instance
3257 u16 ice_get_avail_rxq_count(struct ice_pf *pf)
3259 return ice_get_avail_q_count(pf->avail_rxqs, &pf->avail_q_mutex,
3264 * ice_deinit_pf - Unrolls initialziations done by ice_init_pf
3265 * @pf: board private structure to initialize
3267 static void ice_deinit_pf(struct ice_pf *pf)
3269 ice_service_task_stop(pf);
3270 mutex_destroy(&pf->sw_mutex);
3271 mutex_destroy(&pf->tc_mutex);
3272 mutex_destroy(&pf->avail_q_mutex);
3274 if (pf->avail_txqs) {
3275 bitmap_free(pf->avail_txqs);
3276 pf->avail_txqs = NULL;
3279 if (pf->avail_rxqs) {
3280 bitmap_free(pf->avail_rxqs);
3281 pf->avail_rxqs = NULL;
3286 * ice_set_pf_caps - set PFs capability flags
3287 * @pf: pointer to the PF instance
3289 static void ice_set_pf_caps(struct ice_pf *pf)
3291 struct ice_hw_func_caps *func_caps = &pf->hw.func_caps;
3293 clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
3294 if (func_caps->common_cap.dcb)
3295 set_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
3296 clear_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags);
3297 if (func_caps->common_cap.sr_iov_1_1) {
3298 set_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags);
3299 pf->num_vfs_supported = min_t(int, func_caps->num_allocd_vfs,
3302 clear_bit(ICE_FLAG_RSS_ENA, pf->flags);
3303 if (func_caps->common_cap.rss_table_size)
3304 set_bit(ICE_FLAG_RSS_ENA, pf->flags);
3306 clear_bit(ICE_FLAG_FD_ENA, pf->flags);
3307 if (func_caps->fd_fltr_guar > 0 || func_caps->fd_fltr_best_effort > 0) {
3310 /* ctrl_vsi_idx will be set to a valid value when flow director
3311 * is setup by ice_init_fdir
3313 pf->ctrl_vsi_idx = ICE_NO_VSI;
3314 set_bit(ICE_FLAG_FD_ENA, pf->flags);
3315 /* force guaranteed filter pool for PF */
3316 ice_alloc_fd_guar_item(&pf->hw, &unused,
3317 func_caps->fd_fltr_guar);
3318 /* force shared filter pool for PF */
3319 ice_alloc_fd_shrd_item(&pf->hw, &unused,
3320 func_caps->fd_fltr_best_effort);
3323 pf->max_pf_txqs = func_caps->common_cap.num_txq;
3324 pf->max_pf_rxqs = func_caps->common_cap.num_rxq;
3328 * ice_init_pf - Initialize general software structures (struct ice_pf)
3329 * @pf: board private structure to initialize
3331 static int ice_init_pf(struct ice_pf *pf)
3333 ice_set_pf_caps(pf);
3335 mutex_init(&pf->sw_mutex);
3336 mutex_init(&pf->tc_mutex);
3338 INIT_HLIST_HEAD(&pf->aq_wait_list);
3339 spin_lock_init(&pf->aq_wait_lock);
3340 init_waitqueue_head(&pf->aq_wait_queue);
3342 /* setup service timer and periodic service task */
3343 timer_setup(&pf->serv_tmr, ice_service_timer, 0);
3344 pf->serv_tmr_period = HZ;
3345 INIT_WORK(&pf->serv_task, ice_service_task);
3346 clear_bit(ICE_SERVICE_SCHED, pf->state);
3348 mutex_init(&pf->avail_q_mutex);
3349 pf->avail_txqs = bitmap_zalloc(pf->max_pf_txqs, GFP_KERNEL);
3350 if (!pf->avail_txqs)
3353 pf->avail_rxqs = bitmap_zalloc(pf->max_pf_rxqs, GFP_KERNEL);
3354 if (!pf->avail_rxqs) {
3355 devm_kfree(ice_pf_to_dev(pf), pf->avail_txqs);
3356 pf->avail_txqs = NULL;
3364 * ice_ena_msix_range - Request a range of MSIX vectors from the OS
3365 * @pf: board private structure
3367 * compute the number of MSIX vectors required (v_budget) and request from
3368 * the OS. Return the number of vectors reserved or negative on failure
3370 static int ice_ena_msix_range(struct ice_pf *pf)
3372 int v_left, v_actual, v_other, v_budget = 0;
3373 struct device *dev = ice_pf_to_dev(pf);
3376 v_left = pf->hw.func_caps.common_cap.num_msix_vectors;
3378 /* reserve for LAN miscellaneous handler */
3379 needed = ICE_MIN_LAN_OICR_MSIX;
3380 if (v_left < needed)
3381 goto no_hw_vecs_left_err;
3385 /* reserve for flow director */
3386 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) {
3387 needed = ICE_FDIR_MSIX;
3388 if (v_left < needed)
3389 goto no_hw_vecs_left_err;
3394 /* total used for non-traffic vectors */
3397 /* reserve vectors for LAN traffic */
3398 needed = min_t(int, num_online_cpus(), v_left);
3399 if (v_left < needed)
3400 goto no_hw_vecs_left_err;
3401 pf->num_lan_msix = needed;
3405 pf->msix_entries = devm_kcalloc(dev, v_budget,
3406 sizeof(*pf->msix_entries), GFP_KERNEL);
3407 if (!pf->msix_entries) {
3412 for (i = 0; i < v_budget; i++)
3413 pf->msix_entries[i].entry = i;
3415 /* actually reserve the vectors */
3416 v_actual = pci_enable_msix_range(pf->pdev, pf->msix_entries,
3417 ICE_MIN_MSIX, v_budget);
3419 dev_err(dev, "unable to reserve MSI-X vectors\n");
3424 if (v_actual < v_budget) {
3425 dev_warn(dev, "not enough OS MSI-X vectors. requested = %d, obtained = %d\n",
3426 v_budget, v_actual);
3428 if (v_actual < ICE_MIN_MSIX) {
3429 /* error if we can't get minimum vectors */
3430 pci_disable_msix(pf->pdev);
3434 int v_traffic = v_actual - v_other;
3436 if (v_actual == ICE_MIN_MSIX ||
3437 v_traffic < ICE_MIN_LAN_TXRX_MSIX)
3438 pf->num_lan_msix = ICE_MIN_LAN_TXRX_MSIX;
3440 pf->num_lan_msix = v_traffic;
3442 dev_notice(dev, "Enabled %d MSI-X vectors for LAN traffic.\n",
3450 devm_kfree(dev, pf->msix_entries);
3453 no_hw_vecs_left_err:
3454 dev_err(dev, "not enough device MSI-X vectors. requested = %d, available = %d\n",
3458 pf->num_lan_msix = 0;
3463 * ice_dis_msix - Disable MSI-X interrupt setup in OS
3464 * @pf: board private structure
3466 static void ice_dis_msix(struct ice_pf *pf)
3468 pci_disable_msix(pf->pdev);
3469 devm_kfree(ice_pf_to_dev(pf), pf->msix_entries);
3470 pf->msix_entries = NULL;
3474 * ice_clear_interrupt_scheme - Undo things done by ice_init_interrupt_scheme
3475 * @pf: board private structure
3477 static void ice_clear_interrupt_scheme(struct ice_pf *pf)
3481 if (pf->irq_tracker) {
3482 devm_kfree(ice_pf_to_dev(pf), pf->irq_tracker);
3483 pf->irq_tracker = NULL;
3488 * ice_init_interrupt_scheme - Determine proper interrupt scheme
3489 * @pf: board private structure to initialize
3491 static int ice_init_interrupt_scheme(struct ice_pf *pf)
3495 vectors = ice_ena_msix_range(pf);
3500 /* set up vector assignment tracking */
3501 pf->irq_tracker = devm_kzalloc(ice_pf_to_dev(pf),
3502 struct_size(pf->irq_tracker, list, vectors),
3504 if (!pf->irq_tracker) {
3509 /* populate SW interrupts pool with number of OS granted IRQs. */
3510 pf->num_avail_sw_msix = (u16)vectors;
3511 pf->irq_tracker->num_entries = (u16)vectors;
3512 pf->irq_tracker->end = pf->irq_tracker->num_entries;
3518 * ice_is_wol_supported - check if WoL is supported
3519 * @hw: pointer to hardware info
3521 * Check if WoL is supported based on the HW configuration.
3522 * Returns true if NVM supports and enables WoL for this port, false otherwise
3524 bool ice_is_wol_supported(struct ice_hw *hw)
3528 /* A bit set to 1 in the NVM Software Reserved Word 2 (WoL control
3529 * word) indicates WoL is not supported on the corresponding PF ID.
3531 if (ice_read_sr_word(hw, ICE_SR_NVM_WOL_CFG, &wol_ctrl))
3534 return !(BIT(hw->port_info->lport) & wol_ctrl);
3538 * ice_vsi_recfg_qs - Change the number of queues on a VSI
3539 * @vsi: VSI being changed
3540 * @new_rx: new number of Rx queues
3541 * @new_tx: new number of Tx queues
3543 * Only change the number of queues if new_tx, or new_rx is non-0.
3545 * Returns 0 on success.
3547 int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx)
3549 struct ice_pf *pf = vsi->back;
3550 int err = 0, timeout = 50;
3552 if (!new_rx && !new_tx)
3555 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) {
3559 usleep_range(1000, 2000);
3563 vsi->req_txq = (u16)new_tx;
3565 vsi->req_rxq = (u16)new_rx;
3567 /* set for the next time the netdev is started */
3568 if (!netif_running(vsi->netdev)) {
3569 ice_vsi_rebuild(vsi, false);
3570 dev_dbg(ice_pf_to_dev(pf), "Link is down, queue count change happens when link is brought up\n");
3575 ice_vsi_rebuild(vsi, false);
3576 ice_pf_dcb_recfg(pf);
3579 clear_bit(ICE_CFG_BUSY, pf->state);
3584 * ice_set_safe_mode_vlan_cfg - configure PF VSI to allow all VLANs in safe mode
3585 * @pf: PF to configure
3587 * No VLAN offloads/filtering are advertised in safe mode so make sure the PF
3588 * VSI can still Tx/Rx VLAN tagged packets.
3590 static void ice_set_safe_mode_vlan_cfg(struct ice_pf *pf)
3592 struct ice_vsi *vsi = ice_get_main_vsi(pf);
3593 struct ice_vsi_ctx *ctxt;
3594 enum ice_status status;
3600 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
3605 ctxt->info = vsi->info;
3607 ctxt->info.valid_sections =
3608 cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID |
3609 ICE_AQ_VSI_PROP_SECURITY_VALID |
3610 ICE_AQ_VSI_PROP_SW_VALID);
3612 /* disable VLAN anti-spoof */
3613 ctxt->info.sec_flags &= ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
3614 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
3616 /* disable VLAN pruning and keep all other settings */
3617 ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
3619 /* allow all VLANs on Tx and don't strip on Rx */
3620 ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_MODE_ALL |
3621 ICE_AQ_VSI_VLAN_EMOD_NOTHING;
3623 status = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
3625 dev_err(ice_pf_to_dev(vsi->back), "Failed to update VSI for safe mode VLANs, err %s aq_err %s\n",
3626 ice_stat_str(status),
3627 ice_aq_str(hw->adminq.sq_last_status));
3629 vsi->info.sec_flags = ctxt->info.sec_flags;
3630 vsi->info.sw_flags2 = ctxt->info.sw_flags2;
3631 vsi->info.vlan_flags = ctxt->info.vlan_flags;
3638 * ice_log_pkg_init - log result of DDP package load
3639 * @hw: pointer to hardware info
3640 * @status: status of package load
3643 ice_log_pkg_init(struct ice_hw *hw, enum ice_status *status)
3645 struct ice_pf *pf = (struct ice_pf *)hw->back;
3646 struct device *dev = ice_pf_to_dev(pf);
3650 /* The package download AdminQ command returned success because
3651 * this download succeeded or ICE_ERR_AQ_NO_WORK since there is
3652 * already a package loaded on the device.
3654 if (hw->pkg_ver.major == hw->active_pkg_ver.major &&
3655 hw->pkg_ver.minor == hw->active_pkg_ver.minor &&
3656 hw->pkg_ver.update == hw->active_pkg_ver.update &&
3657 hw->pkg_ver.draft == hw->active_pkg_ver.draft &&
3658 !memcmp(hw->pkg_name, hw->active_pkg_name,
3659 sizeof(hw->pkg_name))) {
3660 if (hw->pkg_dwnld_status == ICE_AQ_RC_EEXIST)
3661 dev_info(dev, "DDP package already present on device: %s version %d.%d.%d.%d\n",
3662 hw->active_pkg_name,
3663 hw->active_pkg_ver.major,
3664 hw->active_pkg_ver.minor,
3665 hw->active_pkg_ver.update,
3666 hw->active_pkg_ver.draft);
3668 dev_info(dev, "The DDP package was successfully loaded: %s version %d.%d.%d.%d\n",
3669 hw->active_pkg_name,
3670 hw->active_pkg_ver.major,
3671 hw->active_pkg_ver.minor,
3672 hw->active_pkg_ver.update,
3673 hw->active_pkg_ver.draft);
3674 } else if (hw->active_pkg_ver.major != ICE_PKG_SUPP_VER_MAJ ||
3675 hw->active_pkg_ver.minor != ICE_PKG_SUPP_VER_MNR) {
3676 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",
3677 hw->active_pkg_name,
3678 hw->active_pkg_ver.major,
3679 hw->active_pkg_ver.minor,
3680 ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR);
3681 *status = ICE_ERR_NOT_SUPPORTED;
3682 } else if (hw->active_pkg_ver.major == ICE_PKG_SUPP_VER_MAJ &&
3683 hw->active_pkg_ver.minor == ICE_PKG_SUPP_VER_MNR) {
3684 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",
3685 hw->active_pkg_name,
3686 hw->active_pkg_ver.major,
3687 hw->active_pkg_ver.minor,
3688 hw->active_pkg_ver.update,
3689 hw->active_pkg_ver.draft,
3696 dev_err(dev, "An unknown error occurred when loading the DDP package, please reboot the system. If the problem persists, update the NVM. Entering Safe Mode.\n");
3697 *status = ICE_ERR_NOT_SUPPORTED;
3700 case ICE_ERR_FW_DDP_MISMATCH:
3701 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");
3703 case ICE_ERR_BUF_TOO_SHORT:
3705 dev_err(dev, "The DDP package file is invalid. Entering Safe Mode.\n");
3707 case ICE_ERR_NOT_SUPPORTED:
3708 /* Package File version not supported */
3709 if (hw->pkg_ver.major > ICE_PKG_SUPP_VER_MAJ ||
3710 (hw->pkg_ver.major == ICE_PKG_SUPP_VER_MAJ &&
3711 hw->pkg_ver.minor > ICE_PKG_SUPP_VER_MNR))
3712 dev_err(dev, "The DDP package file version is higher than the driver supports. Please use an updated driver. Entering Safe Mode.\n");
3713 else if (hw->pkg_ver.major < ICE_PKG_SUPP_VER_MAJ ||
3714 (hw->pkg_ver.major == ICE_PKG_SUPP_VER_MAJ &&
3715 hw->pkg_ver.minor < ICE_PKG_SUPP_VER_MNR))
3716 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",
3717 ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR);
3719 case ICE_ERR_AQ_ERROR:
3720 switch (hw->pkg_dwnld_status) {
3721 case ICE_AQ_RC_ENOSEC:
3722 case ICE_AQ_RC_EBADSIG:
3723 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");
3725 case ICE_AQ_RC_ESVN:
3726 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");
3728 case ICE_AQ_RC_EBADMAN:
3729 case ICE_AQ_RC_EBADBUF:
3730 dev_err(dev, "An error occurred on the device while loading the DDP package. The device will be reset.\n");
3731 /* poll for reset to complete */
3732 if (ice_check_reset(hw))
3733 dev_err(dev, "Error resetting device. Please reload the driver\n");
3740 dev_err(dev, "An unknown error (%d) occurred when loading the DDP package. Entering Safe Mode.\n",
3747 * ice_load_pkg - load/reload the DDP Package file
3748 * @firmware: firmware structure when firmware requested or NULL for reload
3749 * @pf: pointer to the PF instance
3751 * Called on probe and post CORER/GLOBR rebuild to load DDP Package and
3752 * initialize HW tables.
3755 ice_load_pkg(const struct firmware *firmware, struct ice_pf *pf)
3757 enum ice_status status = ICE_ERR_PARAM;
3758 struct device *dev = ice_pf_to_dev(pf);
3759 struct ice_hw *hw = &pf->hw;
3761 /* Load DDP Package */
3762 if (firmware && !hw->pkg_copy) {
3763 status = ice_copy_and_init_pkg(hw, firmware->data,
3765 ice_log_pkg_init(hw, &status);
3766 } else if (!firmware && hw->pkg_copy) {
3767 /* Reload package during rebuild after CORER/GLOBR reset */
3768 status = ice_init_pkg(hw, hw->pkg_copy, hw->pkg_size);
3769 ice_log_pkg_init(hw, &status);
3771 dev_err(dev, "The DDP package file failed to load. Entering Safe Mode.\n");
3776 clear_bit(ICE_FLAG_ADV_FEATURES, pf->flags);
3780 /* Successful download package is the precondition for advanced
3781 * features, hence setting the ICE_FLAG_ADV_FEATURES flag
3783 set_bit(ICE_FLAG_ADV_FEATURES, pf->flags);
3787 * ice_verify_cacheline_size - verify driver's assumption of 64 Byte cache lines
3788 * @pf: pointer to the PF structure
3790 * There is no error returned here because the driver should be able to handle
3791 * 128 Byte cache lines, so we only print a warning in case issues are seen,
3792 * specifically with Tx.
3794 static void ice_verify_cacheline_size(struct ice_pf *pf)
3796 if (rd32(&pf->hw, GLPCI_CNF2) & GLPCI_CNF2_CACHELINE_SIZE_M)
3797 dev_warn(ice_pf_to_dev(pf), "%d Byte cache line assumption is invalid, driver may have Tx timeouts!\n",
3798 ICE_CACHE_LINE_BYTES);
3802 * ice_send_version - update firmware with driver version
3805 * Returns ICE_SUCCESS on success, else error code
3807 static enum ice_status ice_send_version(struct ice_pf *pf)
3809 struct ice_driver_ver dv;
3811 dv.major_ver = 0xff;
3812 dv.minor_ver = 0xff;
3813 dv.build_ver = 0xff;
3814 dv.subbuild_ver = 0;
3815 strscpy((char *)dv.driver_string, UTS_RELEASE,
3816 sizeof(dv.driver_string));
3817 return ice_aq_send_driver_ver(&pf->hw, &dv, NULL);
3821 * ice_init_fdir - Initialize flow director VSI and configuration
3822 * @pf: pointer to the PF instance
3824 * returns 0 on success, negative on error
3826 static int ice_init_fdir(struct ice_pf *pf)
3828 struct device *dev = ice_pf_to_dev(pf);
3829 struct ice_vsi *ctrl_vsi;
3832 /* Side Band Flow Director needs to have a control VSI.
3833 * Allocate it and store it in the PF.
3835 ctrl_vsi = ice_ctrl_vsi_setup(pf, pf->hw.port_info);
3837 dev_dbg(dev, "could not create control VSI\n");
3841 err = ice_vsi_open_ctrl(ctrl_vsi);
3843 dev_dbg(dev, "could not open control VSI\n");
3847 mutex_init(&pf->hw.fdir_fltr_lock);
3849 err = ice_fdir_create_dflt_rules(pf);
3856 ice_fdir_release_flows(&pf->hw);
3857 ice_vsi_close(ctrl_vsi);
3859 ice_vsi_release(ctrl_vsi);
3860 if (pf->ctrl_vsi_idx != ICE_NO_VSI) {
3861 pf->vsi[pf->ctrl_vsi_idx] = NULL;
3862 pf->ctrl_vsi_idx = ICE_NO_VSI;
3868 * ice_get_opt_fw_name - return optional firmware file name or NULL
3869 * @pf: pointer to the PF instance
3871 static char *ice_get_opt_fw_name(struct ice_pf *pf)
3873 /* Optional firmware name same as default with additional dash
3874 * followed by a EUI-64 identifier (PCIe Device Serial Number)
3876 struct pci_dev *pdev = pf->pdev;
3877 char *opt_fw_filename;
3880 /* Determine the name of the optional file using the DSN (two
3881 * dwords following the start of the DSN Capability).
3883 dsn = pci_get_dsn(pdev);
3887 opt_fw_filename = kzalloc(NAME_MAX, GFP_KERNEL);
3888 if (!opt_fw_filename)
3891 snprintf(opt_fw_filename, NAME_MAX, "%sice-%016llx.pkg",
3892 ICE_DDP_PKG_PATH, dsn);
3894 return opt_fw_filename;
3898 * ice_request_fw - Device initialization routine
3899 * @pf: pointer to the PF instance
3901 static void ice_request_fw(struct ice_pf *pf)
3903 char *opt_fw_filename = ice_get_opt_fw_name(pf);
3904 const struct firmware *firmware = NULL;
3905 struct device *dev = ice_pf_to_dev(pf);
3908 /* optional device-specific DDP (if present) overrides the default DDP
3909 * package file. kernel logs a debug message if the file doesn't exist,
3910 * and warning messages for other errors.
3912 if (opt_fw_filename) {
3913 err = firmware_request_nowarn(&firmware, opt_fw_filename, dev);
3915 kfree(opt_fw_filename);
3919 /* request for firmware was successful. Download to device */
3920 ice_load_pkg(firmware, pf);
3921 kfree(opt_fw_filename);
3922 release_firmware(firmware);
3927 err = request_firmware(&firmware, ICE_DDP_PKG_FILE, dev);
3929 dev_err(dev, "The DDP package file was not found or could not be read. Entering Safe Mode\n");
3933 /* request for firmware was successful. Download to device */
3934 ice_load_pkg(firmware, pf);
3935 release_firmware(firmware);
3939 * ice_print_wake_reason - show the wake up cause in the log
3940 * @pf: pointer to the PF struct
3942 static void ice_print_wake_reason(struct ice_pf *pf)
3944 u32 wus = pf->wakeup_reason;
3945 const char *wake_str;
3947 /* if no wake event, nothing to print */
3951 if (wus & PFPM_WUS_LNKC_M)
3952 wake_str = "Link\n";
3953 else if (wus & PFPM_WUS_MAG_M)
3954 wake_str = "Magic Packet\n";
3955 else if (wus & PFPM_WUS_MNG_M)
3956 wake_str = "Management\n";
3957 else if (wus & PFPM_WUS_FW_RST_WK_M)
3958 wake_str = "Firmware Reset\n";
3960 wake_str = "Unknown\n";
3962 dev_info(ice_pf_to_dev(pf), "Wake reason: %s", wake_str);
3966 * ice_register_netdev - register netdev and devlink port
3967 * @pf: pointer to the PF struct
3969 static int ice_register_netdev(struct ice_pf *pf)
3971 struct ice_vsi *vsi;
3974 vsi = ice_get_main_vsi(pf);
3975 if (!vsi || !vsi->netdev)
3978 err = register_netdev(vsi->netdev);
3980 goto err_register_netdev;
3982 set_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
3983 netif_carrier_off(vsi->netdev);
3984 netif_tx_stop_all_queues(vsi->netdev);
3985 err = ice_devlink_create_port(vsi);
3987 goto err_devlink_create;
3989 devlink_port_type_eth_set(&vsi->devlink_port, vsi->netdev);
3993 unregister_netdev(vsi->netdev);
3994 clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
3995 err_register_netdev:
3996 free_netdev(vsi->netdev);
3998 clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
4003 * ice_probe - Device initialization routine
4004 * @pdev: PCI device information struct
4005 * @ent: entry in ice_pci_tbl
4007 * Returns 0 on success, negative on failure
4010 ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
4012 struct device *dev = &pdev->dev;
4017 /* this driver uses devres, see
4018 * Documentation/driver-api/driver-model/devres.rst
4020 err = pcim_enable_device(pdev);
4024 err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), dev_driver_string(dev));
4026 dev_err(dev, "BAR0 I/O map error %d\n", err);
4030 pf = ice_allocate_pf(dev);
4034 /* set up for high or low DMA */
4035 err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
4037 err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
4039 dev_err(dev, "DMA configuration failed: 0x%x\n", err);
4043 pci_enable_pcie_error_reporting(pdev);
4044 pci_set_master(pdev);
4047 pci_set_drvdata(pdev, pf);
4048 set_bit(ICE_DOWN, pf->state);
4049 /* Disable service task until DOWN bit is cleared */
4050 set_bit(ICE_SERVICE_DIS, pf->state);
4053 hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0];
4054 pci_save_state(pdev);
4057 hw->vendor_id = pdev->vendor;
4058 hw->device_id = pdev->device;
4059 pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
4060 hw->subsystem_vendor_id = pdev->subsystem_vendor;
4061 hw->subsystem_device_id = pdev->subsystem_device;
4062 hw->bus.device = PCI_SLOT(pdev->devfn);
4063 hw->bus.func = PCI_FUNC(pdev->devfn);
4064 ice_set_ctrlq_len(hw);
4066 pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M);
4068 err = ice_devlink_register(pf);
4070 dev_err(dev, "ice_devlink_register failed: %d\n", err);
4071 goto err_exit_unroll;
4074 #ifndef CONFIG_DYNAMIC_DEBUG
4076 hw->debug_mask = debug;
4079 err = ice_init_hw(hw);
4081 dev_err(dev, "ice_init_hw failed: %d\n", err);
4083 goto err_exit_unroll;
4088 /* if ice_request_fw fails, ICE_FLAG_ADV_FEATURES bit won't be
4089 * set in pf->state, which will cause ice_is_safe_mode to return
4092 if (ice_is_safe_mode(pf)) {
4093 dev_err(dev, "Package download failed. Advanced features disabled - Device now in Safe Mode\n");
4094 /* we already got function/device capabilities but these don't
4095 * reflect what the driver needs to do in safe mode. Instead of
4096 * adding conditional logic everywhere to ignore these
4097 * device/function capabilities, override them.
4099 ice_set_safe_mode_caps(hw);
4102 err = ice_init_pf(pf);
4104 dev_err(dev, "ice_init_pf failed: %d\n", err);
4105 goto err_init_pf_unroll;
4108 ice_devlink_init_regions(pf);
4110 pf->hw.udp_tunnel_nic.set_port = ice_udp_tunnel_set_port;
4111 pf->hw.udp_tunnel_nic.unset_port = ice_udp_tunnel_unset_port;
4112 pf->hw.udp_tunnel_nic.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP;
4113 pf->hw.udp_tunnel_nic.shared = &pf->hw.udp_tunnel_shared;
4115 if (pf->hw.tnl.valid_count[TNL_VXLAN]) {
4116 pf->hw.udp_tunnel_nic.tables[i].n_entries =
4117 pf->hw.tnl.valid_count[TNL_VXLAN];
4118 pf->hw.udp_tunnel_nic.tables[i].tunnel_types =
4119 UDP_TUNNEL_TYPE_VXLAN;
4122 if (pf->hw.tnl.valid_count[TNL_GENEVE]) {
4123 pf->hw.udp_tunnel_nic.tables[i].n_entries =
4124 pf->hw.tnl.valid_count[TNL_GENEVE];
4125 pf->hw.udp_tunnel_nic.tables[i].tunnel_types =
4126 UDP_TUNNEL_TYPE_GENEVE;
4130 pf->num_alloc_vsi = hw->func_caps.guar_num_vsi;
4131 if (!pf->num_alloc_vsi) {
4133 goto err_init_pf_unroll;
4135 if (pf->num_alloc_vsi > UDP_TUNNEL_NIC_MAX_SHARING_DEVICES) {
4136 dev_warn(&pf->pdev->dev,
4137 "limiting the VSI count due to UDP tunnel limitation %d > %d\n",
4138 pf->num_alloc_vsi, UDP_TUNNEL_NIC_MAX_SHARING_DEVICES);
4139 pf->num_alloc_vsi = UDP_TUNNEL_NIC_MAX_SHARING_DEVICES;
4142 pf->vsi = devm_kcalloc(dev, pf->num_alloc_vsi, sizeof(*pf->vsi),
4146 goto err_init_pf_unroll;
4149 err = ice_init_interrupt_scheme(pf);
4151 dev_err(dev, "ice_init_interrupt_scheme failed: %d\n", err);
4153 goto err_init_vsi_unroll;
4156 /* In case of MSIX we are going to setup the misc vector right here
4157 * to handle admin queue events etc. In case of legacy and MSI
4158 * the misc functionality and queue processing is combined in
4159 * the same vector and that gets setup at open.
4161 err = ice_req_irq_msix_misc(pf);
4163 dev_err(dev, "setup of misc vector failed: %d\n", err);
4164 goto err_init_interrupt_unroll;
4167 /* create switch struct for the switch element created by FW on boot */
4168 pf->first_sw = devm_kzalloc(dev, sizeof(*pf->first_sw), GFP_KERNEL);
4169 if (!pf->first_sw) {
4171 goto err_msix_misc_unroll;
4175 pf->first_sw->bridge_mode = BRIDGE_MODE_VEB;
4177 pf->first_sw->bridge_mode = BRIDGE_MODE_VEPA;
4179 pf->first_sw->pf = pf;
4181 /* record the sw_id available for later use */
4182 pf->first_sw->sw_id = hw->port_info->sw_id;
4184 err = ice_setup_pf_sw(pf);
4186 dev_err(dev, "probe failed due to setup PF switch: %d\n", err);
4187 goto err_alloc_sw_unroll;
4190 clear_bit(ICE_SERVICE_DIS, pf->state);
4192 /* tell the firmware we are up */
4193 err = ice_send_version(pf);
4195 dev_err(dev, "probe failed sending driver version %s. error: %d\n",
4197 goto err_send_version_unroll;
4200 /* since everything is good, start the service timer */
4201 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
4203 err = ice_init_link_events(pf->hw.port_info);
4205 dev_err(dev, "ice_init_link_events failed: %d\n", err);
4206 goto err_send_version_unroll;
4209 /* not a fatal error if this fails */
4210 err = ice_init_nvm_phy_type(pf->hw.port_info);
4212 dev_err(dev, "ice_init_nvm_phy_type failed: %d\n", err);
4214 /* not a fatal error if this fails */
4215 err = ice_update_link_info(pf->hw.port_info);
4217 dev_err(dev, "ice_update_link_info failed: %d\n", err);
4219 ice_init_link_dflt_override(pf->hw.port_info);
4221 /* if media available, initialize PHY settings */
4222 if (pf->hw.port_info->phy.link_info.link_info &
4223 ICE_AQ_MEDIA_AVAILABLE) {
4224 /* not a fatal error if this fails */
4225 err = ice_init_phy_user_cfg(pf->hw.port_info);
4227 dev_err(dev, "ice_init_phy_user_cfg failed: %d\n", err);
4229 if (!test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags)) {
4230 struct ice_vsi *vsi = ice_get_main_vsi(pf);
4233 ice_configure_phy(vsi);
4236 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);
4239 ice_verify_cacheline_size(pf);
4241 /* Save wakeup reason register for later use */
4242 pf->wakeup_reason = rd32(hw, PFPM_WUS);
4244 /* check for a power management event */
4245 ice_print_wake_reason(pf);
4247 /* clear wake status, all bits */
4248 wr32(hw, PFPM_WUS, U32_MAX);
4250 /* Disable WoL at init, wait for user to enable */
4251 device_set_wakeup_enable(dev, false);
4253 if (ice_is_safe_mode(pf)) {
4254 ice_set_safe_mode_vlan_cfg(pf);
4258 /* initialize DDP driven features */
4260 /* Note: Flow director init failure is non-fatal to load */
4261 if (ice_init_fdir(pf))
4262 dev_err(dev, "could not initialize flow director\n");
4264 /* Note: DCB init failure is non-fatal to load */
4265 if (ice_init_pf_dcb(pf, false)) {
4266 clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
4267 clear_bit(ICE_FLAG_DCB_ENA, pf->flags);
4269 ice_cfg_lldp_mib_change(&pf->hw, true);
4272 if (ice_init_lag(pf))
4273 dev_warn(dev, "Failed to init link aggregation support\n");
4275 /* print PCI link speed and width */
4276 pcie_print_link_status(pf->pdev);
4279 err = ice_register_netdev(pf);
4281 goto err_netdev_reg;
4283 /* ready to go, so clear down state bit */
4284 clear_bit(ICE_DOWN, pf->state);
4288 err_send_version_unroll:
4289 ice_vsi_release_all(pf);
4290 err_alloc_sw_unroll:
4291 set_bit(ICE_SERVICE_DIS, pf->state);
4292 set_bit(ICE_DOWN, pf->state);
4293 devm_kfree(dev, pf->first_sw);
4294 err_msix_misc_unroll:
4295 ice_free_irq_msix_misc(pf);
4296 err_init_interrupt_unroll:
4297 ice_clear_interrupt_scheme(pf);
4298 err_init_vsi_unroll:
4299 devm_kfree(dev, pf->vsi);
4302 ice_devlink_destroy_regions(pf);
4305 ice_devlink_unregister(pf);
4306 pci_disable_pcie_error_reporting(pdev);
4307 pci_disable_device(pdev);
4312 * ice_set_wake - enable or disable Wake on LAN
4313 * @pf: pointer to the PF struct
4315 * Simple helper for WoL control
4317 static void ice_set_wake(struct ice_pf *pf)
4319 struct ice_hw *hw = &pf->hw;
4320 bool wol = pf->wol_ena;
4322 /* clear wake state, otherwise new wake events won't fire */
4323 wr32(hw, PFPM_WUS, U32_MAX);
4325 /* enable / disable APM wake up, no RMW needed */
4326 wr32(hw, PFPM_APM, wol ? PFPM_APM_APME_M : 0);
4328 /* set magic packet filter enabled */
4329 wr32(hw, PFPM_WUFC, wol ? PFPM_WUFC_MAG_M : 0);
4333 * ice_setup_mc_magic_wake - setup device to wake on multicast magic packet
4334 * @pf: pointer to the PF struct
4336 * Issue firmware command to enable multicast magic wake, making
4337 * sure that any locally administered address (LAA) is used for
4338 * wake, and that PF reset doesn't undo the LAA.
4340 static void ice_setup_mc_magic_wake(struct ice_pf *pf)
4342 struct device *dev = ice_pf_to_dev(pf);
4343 struct ice_hw *hw = &pf->hw;
4344 enum ice_status status;
4345 u8 mac_addr[ETH_ALEN];
4346 struct ice_vsi *vsi;
4352 vsi = ice_get_main_vsi(pf);
4356 /* Get current MAC address in case it's an LAA */
4358 ether_addr_copy(mac_addr, vsi->netdev->dev_addr);
4360 ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr);
4362 flags = ICE_AQC_MAN_MAC_WR_MC_MAG_EN |
4363 ICE_AQC_MAN_MAC_UPDATE_LAA_WOL |
4364 ICE_AQC_MAN_MAC_WR_WOL_LAA_PFR_KEEP;
4366 status = ice_aq_manage_mac_write(hw, mac_addr, flags, NULL);
4368 dev_err(dev, "Failed to enable Multicast Magic Packet wake, err %s aq_err %s\n",
4369 ice_stat_str(status),
4370 ice_aq_str(hw->adminq.sq_last_status));
4374 * ice_remove - Device removal routine
4375 * @pdev: PCI device information struct
4377 static void ice_remove(struct pci_dev *pdev)
4379 struct ice_pf *pf = pci_get_drvdata(pdev);
4385 for (i = 0; i < ICE_MAX_RESET_WAIT; i++) {
4386 if (!ice_is_reset_in_progress(pf->state))
4391 if (test_bit(ICE_FLAG_SRIOV_ENA, pf->flags)) {
4392 set_bit(ICE_VF_RESETS_DISABLED, pf->state);
4396 set_bit(ICE_DOWN, pf->state);
4397 ice_service_task_stop(pf);
4399 ice_aq_cancel_waiting_tasks(pf);
4401 mutex_destroy(&(&pf->hw)->fdir_fltr_lock);
4403 if (!ice_is_safe_mode(pf))
4404 ice_remove_arfs(pf);
4405 ice_setup_mc_magic_wake(pf);
4406 ice_vsi_release_all(pf);
4408 ice_free_irq_msix_misc(pf);
4409 ice_for_each_vsi(pf, i) {
4412 ice_vsi_free_q_vectors(pf->vsi[i]);
4415 ice_devlink_destroy_regions(pf);
4416 ice_deinit_hw(&pf->hw);
4417 ice_devlink_unregister(pf);
4419 /* Issue a PFR as part of the prescribed driver unload flow. Do not
4420 * do it via ice_schedule_reset() since there is no need to rebuild
4421 * and the service task is already stopped.
4423 ice_reset(&pf->hw, ICE_RESET_PFR);
4424 pci_wait_for_pending_transaction(pdev);
4425 ice_clear_interrupt_scheme(pf);
4426 pci_disable_pcie_error_reporting(pdev);
4427 pci_disable_device(pdev);
4431 * ice_shutdown - PCI callback for shutting down device
4432 * @pdev: PCI device information struct
4434 static void ice_shutdown(struct pci_dev *pdev)
4436 struct ice_pf *pf = pci_get_drvdata(pdev);
4440 if (system_state == SYSTEM_POWER_OFF) {
4441 pci_wake_from_d3(pdev, pf->wol_ena);
4442 pci_set_power_state(pdev, PCI_D3hot);
4448 * ice_prepare_for_shutdown - prep for PCI shutdown
4449 * @pf: board private structure
4451 * Inform or close all dependent features in prep for PCI device shutdown
4453 static void ice_prepare_for_shutdown(struct ice_pf *pf)
4455 struct ice_hw *hw = &pf->hw;
4458 /* Notify VFs of impending reset */
4459 if (ice_check_sq_alive(hw, &hw->mailboxq))
4460 ice_vc_notify_reset(pf);
4462 dev_dbg(ice_pf_to_dev(pf), "Tearing down internal switch for shutdown\n");
4464 /* disable the VSIs and their queues that are not already DOWN */
4465 ice_pf_dis_all_vsi(pf, false);
4467 ice_for_each_vsi(pf, v)
4469 pf->vsi[v]->vsi_num = 0;
4471 ice_shutdown_all_ctrlq(hw);
4475 * ice_reinit_interrupt_scheme - Reinitialize interrupt scheme
4476 * @pf: board private structure to reinitialize
4478 * This routine reinitialize interrupt scheme that was cleared during
4479 * power management suspend callback.
4481 * This should be called during resume routine to re-allocate the q_vectors
4482 * and reacquire interrupts.
4484 static int ice_reinit_interrupt_scheme(struct ice_pf *pf)
4486 struct device *dev = ice_pf_to_dev(pf);
4489 /* Since we clear MSIX flag during suspend, we need to
4490 * set it back during resume...
4493 ret = ice_init_interrupt_scheme(pf);
4495 dev_err(dev, "Failed to re-initialize interrupt %d\n", ret);
4499 /* Remap vectors and rings, after successful re-init interrupts */
4500 ice_for_each_vsi(pf, v) {
4504 ret = ice_vsi_alloc_q_vectors(pf->vsi[v]);
4507 ice_vsi_map_rings_to_vectors(pf->vsi[v]);
4510 ret = ice_req_irq_msix_misc(pf);
4512 dev_err(dev, "Setting up misc vector failed after device suspend %d\n",
4522 ice_vsi_free_q_vectors(pf->vsi[v]);
4529 * @dev: generic device information structure
4531 * Power Management callback to quiesce the device and prepare
4532 * for D3 transition.
4534 static int __maybe_unused ice_suspend(struct device *dev)
4536 struct pci_dev *pdev = to_pci_dev(dev);
4540 pf = pci_get_drvdata(pdev);
4542 if (!ice_pf_state_is_nominal(pf)) {
4543 dev_err(dev, "Device is not ready, no need to suspend it\n");
4547 /* Stop watchdog tasks until resume completion.
4548 * Even though it is most likely that the service task is
4549 * disabled if the device is suspended or down, the service task's
4550 * state is controlled by a different state bit, and we should
4551 * store and honor whatever state that bit is in at this point.
4553 disabled = ice_service_task_stop(pf);
4555 /* Already suspended?, then there is nothing to do */
4556 if (test_and_set_bit(ICE_SUSPENDED, pf->state)) {
4558 ice_service_task_restart(pf);
4562 if (test_bit(ICE_DOWN, pf->state) ||
4563 ice_is_reset_in_progress(pf->state)) {
4564 dev_err(dev, "can't suspend device in reset or already down\n");
4566 ice_service_task_restart(pf);
4570 ice_setup_mc_magic_wake(pf);
4572 ice_prepare_for_shutdown(pf);
4576 /* Free vectors, clear the interrupt scheme and release IRQs
4577 * for proper hibernation, especially with large number of CPUs.
4578 * Otherwise hibernation might fail when mapping all the vectors back
4581 ice_free_irq_msix_misc(pf);
4582 ice_for_each_vsi(pf, v) {
4585 ice_vsi_free_q_vectors(pf->vsi[v]);
4587 ice_free_cpu_rx_rmap(ice_get_main_vsi(pf));
4588 ice_clear_interrupt_scheme(pf);
4590 pci_save_state(pdev);
4591 pci_wake_from_d3(pdev, pf->wol_ena);
4592 pci_set_power_state(pdev, PCI_D3hot);
4597 * ice_resume - PM callback for waking up from D3
4598 * @dev: generic device information structure
4600 static int __maybe_unused ice_resume(struct device *dev)
4602 struct pci_dev *pdev = to_pci_dev(dev);
4603 enum ice_reset_req reset_type;
4608 pci_set_power_state(pdev, PCI_D0);
4609 pci_restore_state(pdev);
4610 pci_save_state(pdev);
4612 if (!pci_device_is_present(pdev))
4615 ret = pci_enable_device_mem(pdev);
4617 dev_err(dev, "Cannot enable device after suspend\n");
4621 pf = pci_get_drvdata(pdev);
4624 pf->wakeup_reason = rd32(hw, PFPM_WUS);
4625 ice_print_wake_reason(pf);
4627 /* We cleared the interrupt scheme when we suspended, so we need to
4628 * restore it now to resume device functionality.
4630 ret = ice_reinit_interrupt_scheme(pf);
4632 dev_err(dev, "Cannot restore interrupt scheme: %d\n", ret);
4634 clear_bit(ICE_DOWN, pf->state);
4635 /* Now perform PF reset and rebuild */
4636 reset_type = ICE_RESET_PFR;
4637 /* re-enable service task for reset, but allow reset to schedule it */
4638 clear_bit(ICE_SERVICE_DIS, pf->state);
4640 if (ice_schedule_reset(pf, reset_type))
4641 dev_err(dev, "Reset during resume failed.\n");
4643 clear_bit(ICE_SUSPENDED, pf->state);
4644 ice_service_task_restart(pf);
4646 /* Restart the service task */
4647 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
4651 #endif /* CONFIG_PM */
4654 * ice_pci_err_detected - warning that PCI error has been detected
4655 * @pdev: PCI device information struct
4656 * @err: the type of PCI error
4658 * Called to warn that something happened on the PCI bus and the error handling
4659 * is in progress. Allows the driver to gracefully prepare/handle PCI errors.
4661 static pci_ers_result_t
4662 ice_pci_err_detected(struct pci_dev *pdev, pci_channel_state_t err)
4664 struct ice_pf *pf = pci_get_drvdata(pdev);
4667 dev_err(&pdev->dev, "%s: unrecoverable device error %d\n",
4669 return PCI_ERS_RESULT_DISCONNECT;
4672 if (!test_bit(ICE_SUSPENDED, pf->state)) {
4673 ice_service_task_stop(pf);
4675 if (!test_bit(ICE_PREPARED_FOR_RESET, pf->state)) {
4676 set_bit(ICE_PFR_REQ, pf->state);
4677 ice_prepare_for_reset(pf);
4681 return PCI_ERS_RESULT_NEED_RESET;
4685 * ice_pci_err_slot_reset - a PCI slot reset has just happened
4686 * @pdev: PCI device information struct
4688 * Called to determine if the driver can recover from the PCI slot reset by
4689 * using a register read to determine if the device is recoverable.
4691 static pci_ers_result_t ice_pci_err_slot_reset(struct pci_dev *pdev)
4693 struct ice_pf *pf = pci_get_drvdata(pdev);
4694 pci_ers_result_t result;
4698 err = pci_enable_device_mem(pdev);
4700 dev_err(&pdev->dev, "Cannot re-enable PCI device after reset, error %d\n",
4702 result = PCI_ERS_RESULT_DISCONNECT;
4704 pci_set_master(pdev);
4705 pci_restore_state(pdev);
4706 pci_save_state(pdev);
4707 pci_wake_from_d3(pdev, false);
4709 /* Check for life */
4710 reg = rd32(&pf->hw, GLGEN_RTRIG);
4712 result = PCI_ERS_RESULT_RECOVERED;
4714 result = PCI_ERS_RESULT_DISCONNECT;
4717 err = pci_aer_clear_nonfatal_status(pdev);
4719 dev_dbg(&pdev->dev, "pci_aer_clear_nonfatal_status() failed, error %d\n",
4721 /* non-fatal, continue */
4727 * ice_pci_err_resume - restart operations after PCI error recovery
4728 * @pdev: PCI device information struct
4730 * Called to allow the driver to bring things back up after PCI error and/or
4731 * reset recovery have finished
4733 static void ice_pci_err_resume(struct pci_dev *pdev)
4735 struct ice_pf *pf = pci_get_drvdata(pdev);
4738 dev_err(&pdev->dev, "%s failed, device is unrecoverable\n",
4743 if (test_bit(ICE_SUSPENDED, pf->state)) {
4744 dev_dbg(&pdev->dev, "%s failed to resume normal operations!\n",
4749 ice_restore_all_vfs_msi_state(pdev);
4751 ice_do_reset(pf, ICE_RESET_PFR);
4752 ice_service_task_restart(pf);
4753 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
4757 * ice_pci_err_reset_prepare - prepare device driver for PCI reset
4758 * @pdev: PCI device information struct
4760 static void ice_pci_err_reset_prepare(struct pci_dev *pdev)
4762 struct ice_pf *pf = pci_get_drvdata(pdev);
4764 if (!test_bit(ICE_SUSPENDED, pf->state)) {
4765 ice_service_task_stop(pf);
4767 if (!test_bit(ICE_PREPARED_FOR_RESET, pf->state)) {
4768 set_bit(ICE_PFR_REQ, pf->state);
4769 ice_prepare_for_reset(pf);
4775 * ice_pci_err_reset_done - PCI reset done, device driver reset can begin
4776 * @pdev: PCI device information struct
4778 static void ice_pci_err_reset_done(struct pci_dev *pdev)
4780 ice_pci_err_resume(pdev);
4783 /* ice_pci_tbl - PCI Device ID Table
4785 * Wildcard entries (PCI_ANY_ID) should come last
4786 * Last entry must be all 0s
4788 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
4789 * Class, Class Mask, private data (not used) }
4791 static const struct pci_device_id ice_pci_tbl[] = {
4792 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_BACKPLANE), 0 },
4793 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_QSFP), 0 },
4794 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_SFP), 0 },
4795 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_SFP), 0 },
4796 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_BACKPLANE), 0 },
4797 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_QSFP), 0 },
4798 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_SFP), 0 },
4799 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_10G_BASE_T), 0 },
4800 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_SGMII), 0 },
4801 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_BACKPLANE), 0 },
4802 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_QSFP), 0 },
4803 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SFP), 0 },
4804 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_10G_BASE_T), 0 },
4805 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SGMII), 0 },
4806 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_BACKPLANE), 0 },
4807 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SFP), 0 },
4808 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_10G_BASE_T), 0 },
4809 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SGMII), 0 },
4810 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_BACKPLANE), 0 },
4811 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_SFP), 0 },
4812 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_10G_BASE_T), 0 },
4813 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_1GBE), 0 },
4814 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_QSFP), 0 },
4815 /* required last entry */
4818 MODULE_DEVICE_TABLE(pci, ice_pci_tbl);
4820 static __maybe_unused SIMPLE_DEV_PM_OPS(ice_pm_ops, ice_suspend, ice_resume);
4822 static const struct pci_error_handlers ice_pci_err_handler = {
4823 .error_detected = ice_pci_err_detected,
4824 .slot_reset = ice_pci_err_slot_reset,
4825 .reset_prepare = ice_pci_err_reset_prepare,
4826 .reset_done = ice_pci_err_reset_done,
4827 .resume = ice_pci_err_resume
4830 static struct pci_driver ice_driver = {
4831 .name = KBUILD_MODNAME,
4832 .id_table = ice_pci_tbl,
4834 .remove = ice_remove,
4836 .driver.pm = &ice_pm_ops,
4837 #endif /* CONFIG_PM */
4838 .shutdown = ice_shutdown,
4839 .sriov_configure = ice_sriov_configure,
4840 .err_handler = &ice_pci_err_handler
4844 * ice_module_init - Driver registration routine
4846 * ice_module_init is the first routine called when the driver is
4847 * loaded. All it does is register with the PCI subsystem.
4849 static int __init ice_module_init(void)
4853 pr_info("%s\n", ice_driver_string);
4854 pr_info("%s\n", ice_copyright);
4856 ice_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, KBUILD_MODNAME);
4858 pr_err("Failed to create workqueue\n");
4862 status = pci_register_driver(&ice_driver);
4864 pr_err("failed to register PCI driver, err %d\n", status);
4865 destroy_workqueue(ice_wq);
4870 module_init(ice_module_init);
4873 * ice_module_exit - Driver exit cleanup routine
4875 * ice_module_exit is called just before the driver is removed
4878 static void __exit ice_module_exit(void)
4880 pci_unregister_driver(&ice_driver);
4881 destroy_workqueue(ice_wq);
4882 pr_info("module unloaded\n");
4884 module_exit(ice_module_exit);
4887 * ice_set_mac_address - NDO callback to set MAC address
4888 * @netdev: network interface device structure
4889 * @pi: pointer to an address structure
4891 * Returns 0 on success, negative on failure
4893 static int ice_set_mac_address(struct net_device *netdev, void *pi)
4895 struct ice_netdev_priv *np = netdev_priv(netdev);
4896 struct ice_vsi *vsi = np->vsi;
4897 struct ice_pf *pf = vsi->back;
4898 struct ice_hw *hw = &pf->hw;
4899 struct sockaddr *addr = pi;
4900 enum ice_status status;
4905 mac = (u8 *)addr->sa_data;
4907 if (!is_valid_ether_addr(mac))
4908 return -EADDRNOTAVAIL;
4910 if (ether_addr_equal(netdev->dev_addr, mac)) {
4911 netdev_warn(netdev, "already using mac %pM\n", mac);
4915 if (test_bit(ICE_DOWN, pf->state) ||
4916 ice_is_reset_in_progress(pf->state)) {
4917 netdev_err(netdev, "can't set mac %pM. device not ready\n",
4922 /* Clean up old MAC filter. Not an error if old filter doesn't exist */
4923 status = ice_fltr_remove_mac(vsi, netdev->dev_addr, ICE_FWD_TO_VSI);
4924 if (status && status != ICE_ERR_DOES_NOT_EXIST) {
4925 err = -EADDRNOTAVAIL;
4926 goto err_update_filters;
4929 /* Add filter for new MAC. If filter exists, return success */
4930 status = ice_fltr_add_mac(vsi, mac, ICE_FWD_TO_VSI);
4931 if (status == ICE_ERR_ALREADY_EXISTS) {
4932 /* Although this MAC filter is already present in hardware it's
4933 * possible in some cases (e.g. bonding) that dev_addr was
4934 * modified outside of the driver and needs to be restored back
4937 memcpy(netdev->dev_addr, mac, netdev->addr_len);
4938 netdev_dbg(netdev, "filter for MAC %pM already exists\n", mac);
4942 /* error if the new filter addition failed */
4944 err = -EADDRNOTAVAIL;
4948 netdev_err(netdev, "can't set MAC %pM. filter update failed\n",
4953 /* change the netdev's MAC address */
4954 memcpy(netdev->dev_addr, mac, netdev->addr_len);
4955 netdev_dbg(vsi->netdev, "updated MAC address to %pM\n",
4958 /* write new MAC address to the firmware */
4959 flags = ICE_AQC_MAN_MAC_UPDATE_LAA_WOL;
4960 status = ice_aq_manage_mac_write(hw, mac, flags, NULL);
4962 netdev_err(netdev, "can't set MAC %pM. write to firmware failed error %s\n",
4963 mac, ice_stat_str(status));
4969 * ice_set_rx_mode - NDO callback to set the netdev filters
4970 * @netdev: network interface device structure
4972 static void ice_set_rx_mode(struct net_device *netdev)
4974 struct ice_netdev_priv *np = netdev_priv(netdev);
4975 struct ice_vsi *vsi = np->vsi;
4980 /* Set the flags to synchronize filters
4981 * ndo_set_rx_mode may be triggered even without a change in netdev
4984 set_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);
4985 set_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);
4986 set_bit(ICE_FLAG_FLTR_SYNC, vsi->back->flags);
4988 /* schedule our worker thread which will take care of
4989 * applying the new filter changes
4991 ice_service_task_schedule(vsi->back);
4995 * ice_set_tx_maxrate - NDO callback to set the maximum per-queue bitrate
4996 * @netdev: network interface device structure
4997 * @queue_index: Queue ID
4998 * @maxrate: maximum bandwidth in Mbps
5001 ice_set_tx_maxrate(struct net_device *netdev, int queue_index, u32 maxrate)
5003 struct ice_netdev_priv *np = netdev_priv(netdev);
5004 struct ice_vsi *vsi = np->vsi;
5005 enum ice_status status;
5009 /* Validate maxrate requested is within permitted range */
5010 if (maxrate && (maxrate > (ICE_SCHED_MAX_BW / 1000))) {
5011 netdev_err(netdev, "Invalid max rate %d specified for the queue %d\n",
5012 maxrate, queue_index);
5016 q_handle = vsi->tx_rings[queue_index]->q_handle;
5017 tc = ice_dcb_get_tc(vsi, queue_index);
5019 /* Set BW back to default, when user set maxrate to 0 */
5021 status = ice_cfg_q_bw_dflt_lmt(vsi->port_info, vsi->idx, tc,
5022 q_handle, ICE_MAX_BW);
5024 status = ice_cfg_q_bw_lmt(vsi->port_info, vsi->idx, tc,
5025 q_handle, ICE_MAX_BW, maxrate * 1000);
5027 netdev_err(netdev, "Unable to set Tx max rate, error %s\n",
5028 ice_stat_str(status));
5036 * ice_fdb_add - add an entry to the hardware database
5037 * @ndm: the input from the stack
5038 * @tb: pointer to array of nladdr (unused)
5039 * @dev: the net device pointer
5040 * @addr: the MAC address entry being added
5042 * @flags: instructions from stack about fdb operation
5043 * @extack: netlink extended ack
5046 ice_fdb_add(struct ndmsg *ndm, struct nlattr __always_unused *tb[],
5047 struct net_device *dev, const unsigned char *addr, u16 vid,
5048 u16 flags, struct netlink_ext_ack __always_unused *extack)
5053 netdev_err(dev, "VLANs aren't supported yet for dev_uc|mc_add()\n");
5056 if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) {
5057 netdev_err(dev, "FDB only supports static addresses\n");
5061 if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
5062 err = dev_uc_add_excl(dev, addr);
5063 else if (is_multicast_ether_addr(addr))
5064 err = dev_mc_add_excl(dev, addr);
5068 /* Only return duplicate errors if NLM_F_EXCL is set */
5069 if (err == -EEXIST && !(flags & NLM_F_EXCL))
5076 * ice_fdb_del - delete an entry from the hardware database
5077 * @ndm: the input from the stack
5078 * @tb: pointer to array of nladdr (unused)
5079 * @dev: the net device pointer
5080 * @addr: the MAC address entry being added
5084 ice_fdb_del(struct ndmsg *ndm, __always_unused struct nlattr *tb[],
5085 struct net_device *dev, const unsigned char *addr,
5086 __always_unused u16 vid)
5090 if (ndm->ndm_state & NUD_PERMANENT) {
5091 netdev_err(dev, "FDB only supports static addresses\n");
5095 if (is_unicast_ether_addr(addr))
5096 err = dev_uc_del(dev, addr);
5097 else if (is_multicast_ether_addr(addr))
5098 err = dev_mc_del(dev, addr);
5106 * ice_set_features - set the netdev feature flags
5107 * @netdev: ptr to the netdev being adjusted
5108 * @features: the feature set that the stack is suggesting
5111 ice_set_features(struct net_device *netdev, netdev_features_t features)
5113 struct ice_netdev_priv *np = netdev_priv(netdev);
5114 struct ice_vsi *vsi = np->vsi;
5115 struct ice_pf *pf = vsi->back;
5118 /* Don't set any netdev advanced features with device in Safe Mode */
5119 if (ice_is_safe_mode(vsi->back)) {
5120 dev_err(ice_pf_to_dev(vsi->back), "Device is in Safe Mode - not enabling advanced netdev features\n");
5124 /* Do not change setting during reset */
5125 if (ice_is_reset_in_progress(pf->state)) {
5126 dev_err(ice_pf_to_dev(vsi->back), "Device is resetting, changing advanced netdev features temporarily unavailable.\n");
5130 /* Multiple features can be changed in one call so keep features in
5131 * separate if/else statements to guarantee each feature is checked
5133 if (features & NETIF_F_RXHASH && !(netdev->features & NETIF_F_RXHASH))
5134 ice_vsi_manage_rss_lut(vsi, true);
5135 else if (!(features & NETIF_F_RXHASH) &&
5136 netdev->features & NETIF_F_RXHASH)
5137 ice_vsi_manage_rss_lut(vsi, false);
5139 if ((features & NETIF_F_HW_VLAN_CTAG_RX) &&
5140 !(netdev->features & NETIF_F_HW_VLAN_CTAG_RX))
5141 ret = ice_vsi_manage_vlan_stripping(vsi, true);
5142 else if (!(features & NETIF_F_HW_VLAN_CTAG_RX) &&
5143 (netdev->features & NETIF_F_HW_VLAN_CTAG_RX))
5144 ret = ice_vsi_manage_vlan_stripping(vsi, false);
5146 if ((features & NETIF_F_HW_VLAN_CTAG_TX) &&
5147 !(netdev->features & NETIF_F_HW_VLAN_CTAG_TX))
5148 ret = ice_vsi_manage_vlan_insertion(vsi);
5149 else if (!(features & NETIF_F_HW_VLAN_CTAG_TX) &&
5150 (netdev->features & NETIF_F_HW_VLAN_CTAG_TX))
5151 ret = ice_vsi_manage_vlan_insertion(vsi);
5153 if ((features & NETIF_F_HW_VLAN_CTAG_FILTER) &&
5154 !(netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
5155 ret = ice_cfg_vlan_pruning(vsi, true, false);
5156 else if (!(features & NETIF_F_HW_VLAN_CTAG_FILTER) &&
5157 (netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
5158 ret = ice_cfg_vlan_pruning(vsi, false, false);
5160 if ((features & NETIF_F_NTUPLE) &&
5161 !(netdev->features & NETIF_F_NTUPLE)) {
5162 ice_vsi_manage_fdir(vsi, true);
5164 } else if (!(features & NETIF_F_NTUPLE) &&
5165 (netdev->features & NETIF_F_NTUPLE)) {
5166 ice_vsi_manage_fdir(vsi, false);
5167 ice_clear_arfs(vsi);
5174 * ice_vsi_vlan_setup - Setup VLAN offload properties on a VSI
5175 * @vsi: VSI to setup VLAN properties for
5177 static int ice_vsi_vlan_setup(struct ice_vsi *vsi)
5181 if (vsi->netdev->features & NETIF_F_HW_VLAN_CTAG_RX)
5182 ret = ice_vsi_manage_vlan_stripping(vsi, true);
5183 if (vsi->netdev->features & NETIF_F_HW_VLAN_CTAG_TX)
5184 ret = ice_vsi_manage_vlan_insertion(vsi);
5190 * ice_vsi_cfg - Setup the VSI
5191 * @vsi: the VSI being configured
5193 * Return 0 on success and negative value on error
5195 int ice_vsi_cfg(struct ice_vsi *vsi)
5200 ice_set_rx_mode(vsi->netdev);
5202 err = ice_vsi_vlan_setup(vsi);
5207 ice_vsi_cfg_dcb_rings(vsi);
5209 err = ice_vsi_cfg_lan_txqs(vsi);
5210 if (!err && ice_is_xdp_ena_vsi(vsi))
5211 err = ice_vsi_cfg_xdp_txqs(vsi);
5213 err = ice_vsi_cfg_rxqs(vsi);
5218 /* THEORY OF MODERATION:
5219 * The below code creates custom DIM profiles for use by this driver, because
5220 * the ice driver hardware works differently than the hardware that DIMLIB was
5221 * originally made for. ice hardware doesn't have packet count limits that
5222 * can trigger an interrupt, but it *does* have interrupt rate limit support,
5223 * and this code adds that capability to be used by the driver when it's using
5224 * DIMLIB. The DIMLIB code was always designed to be a suggestion to the driver
5225 * for how to "respond" to traffic and interrupts, so this driver uses a
5226 * slightly different set of moderation parameters to get best performance.
5229 /* the throttle rate for interrupts, basically worst case delay before
5230 * an initial interrupt fires, value is stored in microseconds.
5233 /* the rate limit for interrupts, which can cap a delay from a small
5234 * ITR at a certain amount of interrupts per second. f.e. a 2us ITR
5235 * could yield as much as 500,000 interrupts per second, but with a
5236 * 10us rate limit, it limits to 100,000 interrupts per second. Value
5237 * is stored in microseconds.
5242 /* Make a different profile for Rx that doesn't allow quite so aggressive
5243 * moderation at the high end (it maxes out at 128us or about 8k interrupts a
5244 * second. The INTRL/rate parameters here are only useful to cap small ITR
5245 * values, which is why for larger ITR's - like 128, which can only generate
5246 * 8k interrupts per second, there is no point to rate limit and the values
5247 * are set to zero. The rate limit values do affect latency, and so must
5248 * be reasonably small so to not impact latency sensitive tests.
5250 static const struct ice_dim rx_profile[] = {
5258 /* The transmit profile, which has the same sorts of values
5259 * as the previous struct
5261 static const struct ice_dim tx_profile[] = {
5269 static void ice_tx_dim_work(struct work_struct *work)
5271 struct ice_ring_container *rc;
5272 struct ice_q_vector *q_vector;
5276 dim = container_of(work, struct dim, work);
5277 rc = container_of(dim, struct ice_ring_container, dim);
5278 q_vector = container_of(rc, struct ice_q_vector, tx);
5280 if (dim->profile_ix >= ARRAY_SIZE(tx_profile))
5281 dim->profile_ix = ARRAY_SIZE(tx_profile) - 1;
5283 /* look up the values in our local table */
5284 itr = tx_profile[dim->profile_ix].itr;
5285 intrl = tx_profile[dim->profile_ix].intrl;
5287 ice_write_itr(rc, itr);
5288 ice_write_intrl(q_vector, intrl);
5290 dim->state = DIM_START_MEASURE;
5293 static void ice_rx_dim_work(struct work_struct *work)
5295 struct ice_ring_container *rc;
5296 struct ice_q_vector *q_vector;
5300 dim = container_of(work, struct dim, work);
5301 rc = container_of(dim, struct ice_ring_container, dim);
5302 q_vector = container_of(rc, struct ice_q_vector, rx);
5304 if (dim->profile_ix >= ARRAY_SIZE(rx_profile))
5305 dim->profile_ix = ARRAY_SIZE(rx_profile) - 1;
5307 /* look up the values in our local table */
5308 itr = rx_profile[dim->profile_ix].itr;
5309 intrl = rx_profile[dim->profile_ix].intrl;
5311 ice_write_itr(rc, itr);
5312 ice_write_intrl(q_vector, intrl);
5314 dim->state = DIM_START_MEASURE;
5318 * ice_napi_enable_all - Enable NAPI for all q_vectors in the VSI
5319 * @vsi: the VSI being configured
5321 static void ice_napi_enable_all(struct ice_vsi *vsi)
5328 ice_for_each_q_vector(vsi, q_idx) {
5329 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];
5331 INIT_WORK(&q_vector->tx.dim.work, ice_tx_dim_work);
5332 q_vector->tx.dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
5334 INIT_WORK(&q_vector->rx.dim.work, ice_rx_dim_work);
5335 q_vector->rx.dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
5337 if (q_vector->rx.ring || q_vector->tx.ring)
5338 napi_enable(&q_vector->napi);
5343 * ice_up_complete - Finish the last steps of bringing up a connection
5344 * @vsi: The VSI being configured
5346 * Return 0 on success and negative value on error
5348 static int ice_up_complete(struct ice_vsi *vsi)
5350 struct ice_pf *pf = vsi->back;
5353 ice_vsi_cfg_msix(vsi);
5355 /* Enable only Rx rings, Tx rings were enabled by the FW when the
5356 * Tx queue group list was configured and the context bits were
5357 * programmed using ice_vsi_cfg_txqs
5359 err = ice_vsi_start_all_rx_rings(vsi);
5363 clear_bit(ICE_VSI_DOWN, vsi->state);
5364 ice_napi_enable_all(vsi);
5365 ice_vsi_ena_irq(vsi);
5367 if (vsi->port_info &&
5368 (vsi->port_info->phy.link_info.link_info & ICE_AQ_LINK_UP) &&
5370 ice_print_link_msg(vsi, true);
5371 netif_tx_start_all_queues(vsi->netdev);
5372 netif_carrier_on(vsi->netdev);
5375 ice_service_task_schedule(pf);
5381 * ice_up - Bring the connection back up after being down
5382 * @vsi: VSI being configured
5384 int ice_up(struct ice_vsi *vsi)
5388 err = ice_vsi_cfg(vsi);
5390 err = ice_up_complete(vsi);
5396 * ice_fetch_u64_stats_per_ring - get packets and bytes stats per ring
5397 * @ring: Tx or Rx ring to read stats from
5398 * @pkts: packets stats counter
5399 * @bytes: bytes stats counter
5401 * This function fetches stats from the ring considering the atomic operations
5402 * that needs to be performed to read u64 values in 32 bit machine.
5405 ice_fetch_u64_stats_per_ring(struct ice_ring *ring, u64 *pkts, u64 *bytes)
5414 start = u64_stats_fetch_begin_irq(&ring->syncp);
5415 *pkts = ring->stats.pkts;
5416 *bytes = ring->stats.bytes;
5417 } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
5421 * ice_update_vsi_tx_ring_stats - Update VSI Tx ring stats counters
5422 * @vsi: the VSI to be updated
5423 * @rings: rings to work on
5424 * @count: number of rings
5427 ice_update_vsi_tx_ring_stats(struct ice_vsi *vsi, struct ice_ring **rings,
5430 struct rtnl_link_stats64 *vsi_stats = &vsi->net_stats;
5433 for (i = 0; i < count; i++) {
5434 struct ice_ring *ring;
5437 ring = READ_ONCE(rings[i]);
5438 ice_fetch_u64_stats_per_ring(ring, &pkts, &bytes);
5439 vsi_stats->tx_packets += pkts;
5440 vsi_stats->tx_bytes += bytes;
5441 vsi->tx_restart += ring->tx_stats.restart_q;
5442 vsi->tx_busy += ring->tx_stats.tx_busy;
5443 vsi->tx_linearize += ring->tx_stats.tx_linearize;
5448 * ice_update_vsi_ring_stats - Update VSI stats counters
5449 * @vsi: the VSI to be updated
5451 static void ice_update_vsi_ring_stats(struct ice_vsi *vsi)
5453 struct rtnl_link_stats64 *vsi_stats = &vsi->net_stats;
5454 struct ice_ring *ring;
5458 /* reset netdev stats */
5459 vsi_stats->tx_packets = 0;
5460 vsi_stats->tx_bytes = 0;
5461 vsi_stats->rx_packets = 0;
5462 vsi_stats->rx_bytes = 0;
5464 /* reset non-netdev (extended) stats */
5465 vsi->tx_restart = 0;
5467 vsi->tx_linearize = 0;
5468 vsi->rx_buf_failed = 0;
5469 vsi->rx_page_failed = 0;
5473 /* update Tx rings counters */
5474 ice_update_vsi_tx_ring_stats(vsi, vsi->tx_rings, vsi->num_txq);
5476 /* update Rx rings counters */
5477 ice_for_each_rxq(vsi, i) {
5478 ring = READ_ONCE(vsi->rx_rings[i]);
5479 ice_fetch_u64_stats_per_ring(ring, &pkts, &bytes);
5480 vsi_stats->rx_packets += pkts;
5481 vsi_stats->rx_bytes += bytes;
5482 vsi->rx_buf_failed += ring->rx_stats.alloc_buf_failed;
5483 vsi->rx_page_failed += ring->rx_stats.alloc_page_failed;
5486 /* update XDP Tx rings counters */
5487 if (ice_is_xdp_ena_vsi(vsi))
5488 ice_update_vsi_tx_ring_stats(vsi, vsi->xdp_rings,
5495 * ice_update_vsi_stats - Update VSI stats counters
5496 * @vsi: the VSI to be updated
5498 void ice_update_vsi_stats(struct ice_vsi *vsi)
5500 struct rtnl_link_stats64 *cur_ns = &vsi->net_stats;
5501 struct ice_eth_stats *cur_es = &vsi->eth_stats;
5502 struct ice_pf *pf = vsi->back;
5504 if (test_bit(ICE_VSI_DOWN, vsi->state) ||
5505 test_bit(ICE_CFG_BUSY, pf->state))
5508 /* get stats as recorded by Tx/Rx rings */
5509 ice_update_vsi_ring_stats(vsi);
5511 /* get VSI stats as recorded by the hardware */
5512 ice_update_eth_stats(vsi);
5514 cur_ns->tx_errors = cur_es->tx_errors;
5515 cur_ns->rx_dropped = cur_es->rx_discards;
5516 cur_ns->tx_dropped = cur_es->tx_discards;
5517 cur_ns->multicast = cur_es->rx_multicast;
5519 /* update some more netdev stats if this is main VSI */
5520 if (vsi->type == ICE_VSI_PF) {
5521 cur_ns->rx_crc_errors = pf->stats.crc_errors;
5522 cur_ns->rx_errors = pf->stats.crc_errors +
5523 pf->stats.illegal_bytes +
5524 pf->stats.rx_len_errors +
5525 pf->stats.rx_undersize +
5526 pf->hw_csum_rx_error +
5527 pf->stats.rx_jabber +
5528 pf->stats.rx_fragments +
5529 pf->stats.rx_oversize;
5530 cur_ns->rx_length_errors = pf->stats.rx_len_errors;
5531 /* record drops from the port level */
5532 cur_ns->rx_missed_errors = pf->stats.eth.rx_discards;
5537 * ice_update_pf_stats - Update PF port stats counters
5538 * @pf: PF whose stats needs to be updated
5540 void ice_update_pf_stats(struct ice_pf *pf)
5542 struct ice_hw_port_stats *prev_ps, *cur_ps;
5543 struct ice_hw *hw = &pf->hw;
5547 port = hw->port_info->lport;
5548 prev_ps = &pf->stats_prev;
5549 cur_ps = &pf->stats;
5551 ice_stat_update40(hw, GLPRT_GORCL(port), pf->stat_prev_loaded,
5552 &prev_ps->eth.rx_bytes,
5553 &cur_ps->eth.rx_bytes);
5555 ice_stat_update40(hw, GLPRT_UPRCL(port), pf->stat_prev_loaded,
5556 &prev_ps->eth.rx_unicast,
5557 &cur_ps->eth.rx_unicast);
5559 ice_stat_update40(hw, GLPRT_MPRCL(port), pf->stat_prev_loaded,
5560 &prev_ps->eth.rx_multicast,
5561 &cur_ps->eth.rx_multicast);
5563 ice_stat_update40(hw, GLPRT_BPRCL(port), pf->stat_prev_loaded,
5564 &prev_ps->eth.rx_broadcast,
5565 &cur_ps->eth.rx_broadcast);
5567 ice_stat_update32(hw, PRTRPB_RDPC, pf->stat_prev_loaded,
5568 &prev_ps->eth.rx_discards,
5569 &cur_ps->eth.rx_discards);
5571 ice_stat_update40(hw, GLPRT_GOTCL(port), pf->stat_prev_loaded,
5572 &prev_ps->eth.tx_bytes,
5573 &cur_ps->eth.tx_bytes);
5575 ice_stat_update40(hw, GLPRT_UPTCL(port), pf->stat_prev_loaded,
5576 &prev_ps->eth.tx_unicast,
5577 &cur_ps->eth.tx_unicast);
5579 ice_stat_update40(hw, GLPRT_MPTCL(port), pf->stat_prev_loaded,
5580 &prev_ps->eth.tx_multicast,
5581 &cur_ps->eth.tx_multicast);
5583 ice_stat_update40(hw, GLPRT_BPTCL(port), pf->stat_prev_loaded,
5584 &prev_ps->eth.tx_broadcast,
5585 &cur_ps->eth.tx_broadcast);
5587 ice_stat_update32(hw, GLPRT_TDOLD(port), pf->stat_prev_loaded,
5588 &prev_ps->tx_dropped_link_down,
5589 &cur_ps->tx_dropped_link_down);
5591 ice_stat_update40(hw, GLPRT_PRC64L(port), pf->stat_prev_loaded,
5592 &prev_ps->rx_size_64, &cur_ps->rx_size_64);
5594 ice_stat_update40(hw, GLPRT_PRC127L(port), pf->stat_prev_loaded,
5595 &prev_ps->rx_size_127, &cur_ps->rx_size_127);
5597 ice_stat_update40(hw, GLPRT_PRC255L(port), pf->stat_prev_loaded,
5598 &prev_ps->rx_size_255, &cur_ps->rx_size_255);
5600 ice_stat_update40(hw, GLPRT_PRC511L(port), pf->stat_prev_loaded,
5601 &prev_ps->rx_size_511, &cur_ps->rx_size_511);
5603 ice_stat_update40(hw, GLPRT_PRC1023L(port), pf->stat_prev_loaded,
5604 &prev_ps->rx_size_1023, &cur_ps->rx_size_1023);
5606 ice_stat_update40(hw, GLPRT_PRC1522L(port), pf->stat_prev_loaded,
5607 &prev_ps->rx_size_1522, &cur_ps->rx_size_1522);
5609 ice_stat_update40(hw, GLPRT_PRC9522L(port), pf->stat_prev_loaded,
5610 &prev_ps->rx_size_big, &cur_ps->rx_size_big);
5612 ice_stat_update40(hw, GLPRT_PTC64L(port), pf->stat_prev_loaded,
5613 &prev_ps->tx_size_64, &cur_ps->tx_size_64);
5615 ice_stat_update40(hw, GLPRT_PTC127L(port), pf->stat_prev_loaded,
5616 &prev_ps->tx_size_127, &cur_ps->tx_size_127);
5618 ice_stat_update40(hw, GLPRT_PTC255L(port), pf->stat_prev_loaded,
5619 &prev_ps->tx_size_255, &cur_ps->tx_size_255);
5621 ice_stat_update40(hw, GLPRT_PTC511L(port), pf->stat_prev_loaded,
5622 &prev_ps->tx_size_511, &cur_ps->tx_size_511);
5624 ice_stat_update40(hw, GLPRT_PTC1023L(port), pf->stat_prev_loaded,
5625 &prev_ps->tx_size_1023, &cur_ps->tx_size_1023);
5627 ice_stat_update40(hw, GLPRT_PTC1522L(port), pf->stat_prev_loaded,
5628 &prev_ps->tx_size_1522, &cur_ps->tx_size_1522);
5630 ice_stat_update40(hw, GLPRT_PTC9522L(port), pf->stat_prev_loaded,
5631 &prev_ps->tx_size_big, &cur_ps->tx_size_big);
5633 fd_ctr_base = hw->fd_ctr_base;
5635 ice_stat_update40(hw,
5636 GLSTAT_FD_CNT0L(ICE_FD_SB_STAT_IDX(fd_ctr_base)),
5637 pf->stat_prev_loaded, &prev_ps->fd_sb_match,
5638 &cur_ps->fd_sb_match);
5639 ice_stat_update32(hw, GLPRT_LXONRXC(port), pf->stat_prev_loaded,
5640 &prev_ps->link_xon_rx, &cur_ps->link_xon_rx);
5642 ice_stat_update32(hw, GLPRT_LXOFFRXC(port), pf->stat_prev_loaded,
5643 &prev_ps->link_xoff_rx, &cur_ps->link_xoff_rx);
5645 ice_stat_update32(hw, GLPRT_LXONTXC(port), pf->stat_prev_loaded,
5646 &prev_ps->link_xon_tx, &cur_ps->link_xon_tx);
5648 ice_stat_update32(hw, GLPRT_LXOFFTXC(port), pf->stat_prev_loaded,
5649 &prev_ps->link_xoff_tx, &cur_ps->link_xoff_tx);
5651 ice_update_dcb_stats(pf);
5653 ice_stat_update32(hw, GLPRT_CRCERRS(port), pf->stat_prev_loaded,
5654 &prev_ps->crc_errors, &cur_ps->crc_errors);
5656 ice_stat_update32(hw, GLPRT_ILLERRC(port), pf->stat_prev_loaded,
5657 &prev_ps->illegal_bytes, &cur_ps->illegal_bytes);
5659 ice_stat_update32(hw, GLPRT_MLFC(port), pf->stat_prev_loaded,
5660 &prev_ps->mac_local_faults,
5661 &cur_ps->mac_local_faults);
5663 ice_stat_update32(hw, GLPRT_MRFC(port), pf->stat_prev_loaded,
5664 &prev_ps->mac_remote_faults,
5665 &cur_ps->mac_remote_faults);
5667 ice_stat_update32(hw, GLPRT_RLEC(port), pf->stat_prev_loaded,
5668 &prev_ps->rx_len_errors, &cur_ps->rx_len_errors);
5670 ice_stat_update32(hw, GLPRT_RUC(port), pf->stat_prev_loaded,
5671 &prev_ps->rx_undersize, &cur_ps->rx_undersize);
5673 ice_stat_update32(hw, GLPRT_RFC(port), pf->stat_prev_loaded,
5674 &prev_ps->rx_fragments, &cur_ps->rx_fragments);
5676 ice_stat_update32(hw, GLPRT_ROC(port), pf->stat_prev_loaded,
5677 &prev_ps->rx_oversize, &cur_ps->rx_oversize);
5679 ice_stat_update32(hw, GLPRT_RJC(port), pf->stat_prev_loaded,
5680 &prev_ps->rx_jabber, &cur_ps->rx_jabber);
5682 cur_ps->fd_sb_status = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0;
5684 pf->stat_prev_loaded = true;
5688 * ice_get_stats64 - get statistics for network device structure
5689 * @netdev: network interface device structure
5690 * @stats: main device statistics structure
5693 void ice_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
5695 struct ice_netdev_priv *np = netdev_priv(netdev);
5696 struct rtnl_link_stats64 *vsi_stats;
5697 struct ice_vsi *vsi = np->vsi;
5699 vsi_stats = &vsi->net_stats;
5701 if (!vsi->num_txq || !vsi->num_rxq)
5704 /* netdev packet/byte stats come from ring counter. These are obtained
5705 * by summing up ring counters (done by ice_update_vsi_ring_stats).
5706 * But, only call the update routine and read the registers if VSI is
5709 if (!test_bit(ICE_VSI_DOWN, vsi->state))
5710 ice_update_vsi_ring_stats(vsi);
5711 stats->tx_packets = vsi_stats->tx_packets;
5712 stats->tx_bytes = vsi_stats->tx_bytes;
5713 stats->rx_packets = vsi_stats->rx_packets;
5714 stats->rx_bytes = vsi_stats->rx_bytes;
5716 /* The rest of the stats can be read from the hardware but instead we
5717 * just return values that the watchdog task has already obtained from
5720 stats->multicast = vsi_stats->multicast;
5721 stats->tx_errors = vsi_stats->tx_errors;
5722 stats->tx_dropped = vsi_stats->tx_dropped;
5723 stats->rx_errors = vsi_stats->rx_errors;
5724 stats->rx_dropped = vsi_stats->rx_dropped;
5725 stats->rx_crc_errors = vsi_stats->rx_crc_errors;
5726 stats->rx_length_errors = vsi_stats->rx_length_errors;
5730 * ice_napi_disable_all - Disable NAPI for all q_vectors in the VSI
5731 * @vsi: VSI having NAPI disabled
5733 static void ice_napi_disable_all(struct ice_vsi *vsi)
5740 ice_for_each_q_vector(vsi, q_idx) {
5741 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];
5743 if (q_vector->rx.ring || q_vector->tx.ring)
5744 napi_disable(&q_vector->napi);
5746 cancel_work_sync(&q_vector->tx.dim.work);
5747 cancel_work_sync(&q_vector->rx.dim.work);
5752 * ice_down - Shutdown the connection
5753 * @vsi: The VSI being stopped
5755 int ice_down(struct ice_vsi *vsi)
5757 int i, tx_err, rx_err, link_err = 0;
5759 /* Caller of this function is expected to set the
5760 * vsi->state ICE_DOWN bit
5763 netif_carrier_off(vsi->netdev);
5764 netif_tx_disable(vsi->netdev);
5767 ice_vsi_dis_irq(vsi);
5769 tx_err = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
5771 netdev_err(vsi->netdev, "Failed stop Tx rings, VSI %d error %d\n",
5772 vsi->vsi_num, tx_err);
5773 if (!tx_err && ice_is_xdp_ena_vsi(vsi)) {
5774 tx_err = ice_vsi_stop_xdp_tx_rings(vsi);
5776 netdev_err(vsi->netdev, "Failed stop XDP rings, VSI %d error %d\n",
5777 vsi->vsi_num, tx_err);
5780 rx_err = ice_vsi_stop_all_rx_rings(vsi);
5782 netdev_err(vsi->netdev, "Failed stop Rx rings, VSI %d error %d\n",
5783 vsi->vsi_num, rx_err);
5785 ice_napi_disable_all(vsi);
5787 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags)) {
5788 link_err = ice_force_phys_link_state(vsi, false);
5790 netdev_err(vsi->netdev, "Failed to set physical link down, VSI %d error %d\n",
5791 vsi->vsi_num, link_err);
5794 ice_for_each_txq(vsi, i)
5795 ice_clean_tx_ring(vsi->tx_rings[i]);
5797 ice_for_each_rxq(vsi, i)
5798 ice_clean_rx_ring(vsi->rx_rings[i]);
5800 if (tx_err || rx_err || link_err) {
5801 netdev_err(vsi->netdev, "Failed to close VSI 0x%04X on switch 0x%04X\n",
5802 vsi->vsi_num, vsi->vsw->sw_id);
5810 * ice_vsi_setup_tx_rings - Allocate VSI Tx queue resources
5811 * @vsi: VSI having resources allocated
5813 * Return 0 on success, negative on failure
5815 int ice_vsi_setup_tx_rings(struct ice_vsi *vsi)
5819 if (!vsi->num_txq) {
5820 dev_err(ice_pf_to_dev(vsi->back), "VSI %d has 0 Tx queues\n",
5825 ice_for_each_txq(vsi, i) {
5826 struct ice_ring *ring = vsi->tx_rings[i];
5831 ring->netdev = vsi->netdev;
5832 err = ice_setup_tx_ring(ring);
5841 * ice_vsi_setup_rx_rings - Allocate VSI Rx queue resources
5842 * @vsi: VSI having resources allocated
5844 * Return 0 on success, negative on failure
5846 int ice_vsi_setup_rx_rings(struct ice_vsi *vsi)
5850 if (!vsi->num_rxq) {
5851 dev_err(ice_pf_to_dev(vsi->back), "VSI %d has 0 Rx queues\n",
5856 ice_for_each_rxq(vsi, i) {
5857 struct ice_ring *ring = vsi->rx_rings[i];
5862 ring->netdev = vsi->netdev;
5863 err = ice_setup_rx_ring(ring);
5872 * ice_vsi_open_ctrl - open control VSI for use
5873 * @vsi: the VSI to open
5875 * Initialization of the Control VSI
5877 * Returns 0 on success, negative value on error
5879 int ice_vsi_open_ctrl(struct ice_vsi *vsi)
5881 char int_name[ICE_INT_NAME_STR_LEN];
5882 struct ice_pf *pf = vsi->back;
5886 dev = ice_pf_to_dev(pf);
5887 /* allocate descriptors */
5888 err = ice_vsi_setup_tx_rings(vsi);
5892 err = ice_vsi_setup_rx_rings(vsi);
5896 err = ice_vsi_cfg(vsi);
5900 snprintf(int_name, sizeof(int_name) - 1, "%s-%s:ctrl",
5901 dev_driver_string(dev), dev_name(dev));
5902 err = ice_vsi_req_irq_msix(vsi, int_name);
5906 ice_vsi_cfg_msix(vsi);
5908 err = ice_vsi_start_all_rx_rings(vsi);
5910 goto err_up_complete;
5912 clear_bit(ICE_VSI_DOWN, vsi->state);
5913 ice_vsi_ena_irq(vsi);
5920 ice_vsi_free_rx_rings(vsi);
5922 ice_vsi_free_tx_rings(vsi);
5928 * ice_vsi_open - Called when a network interface is made active
5929 * @vsi: the VSI to open
5931 * Initialization of the VSI
5933 * Returns 0 on success, negative value on error
5935 static int ice_vsi_open(struct ice_vsi *vsi)
5937 char int_name[ICE_INT_NAME_STR_LEN];
5938 struct ice_pf *pf = vsi->back;
5941 /* allocate descriptors */
5942 err = ice_vsi_setup_tx_rings(vsi);
5946 err = ice_vsi_setup_rx_rings(vsi);
5950 err = ice_vsi_cfg(vsi);
5954 snprintf(int_name, sizeof(int_name) - 1, "%s-%s",
5955 dev_driver_string(ice_pf_to_dev(pf)), vsi->netdev->name);
5956 err = ice_vsi_req_irq_msix(vsi, int_name);
5960 /* Notify the stack of the actual queue counts. */
5961 err = netif_set_real_num_tx_queues(vsi->netdev, vsi->num_txq);
5965 err = netif_set_real_num_rx_queues(vsi->netdev, vsi->num_rxq);
5969 err = ice_up_complete(vsi);
5971 goto err_up_complete;
5978 ice_vsi_free_irq(vsi);
5980 ice_vsi_free_rx_rings(vsi);
5982 ice_vsi_free_tx_rings(vsi);
5988 * ice_vsi_release_all - Delete all VSIs
5989 * @pf: PF from which all VSIs are being removed
5991 static void ice_vsi_release_all(struct ice_pf *pf)
5998 ice_for_each_vsi(pf, i) {
6002 err = ice_vsi_release(pf->vsi[i]);
6004 dev_dbg(ice_pf_to_dev(pf), "Failed to release pf->vsi[%d], err %d, vsi_num = %d\n",
6005 i, err, pf->vsi[i]->vsi_num);
6010 * ice_vsi_rebuild_by_type - Rebuild VSI of a given type
6011 * @pf: pointer to the PF instance
6012 * @type: VSI type to rebuild
6014 * Iterates through the pf->vsi array and rebuilds VSIs of the requested type
6016 static int ice_vsi_rebuild_by_type(struct ice_pf *pf, enum ice_vsi_type type)
6018 struct device *dev = ice_pf_to_dev(pf);
6019 enum ice_status status;
6022 ice_for_each_vsi(pf, i) {
6023 struct ice_vsi *vsi = pf->vsi[i];
6025 if (!vsi || vsi->type != type)
6028 /* rebuild the VSI */
6029 err = ice_vsi_rebuild(vsi, true);
6031 dev_err(dev, "rebuild VSI failed, err %d, VSI index %d, type %s\n",
6032 err, vsi->idx, ice_vsi_type_str(type));
6036 /* replay filters for the VSI */
6037 status = ice_replay_vsi(&pf->hw, vsi->idx);
6039 dev_err(dev, "replay VSI failed, status %s, VSI index %d, type %s\n",
6040 ice_stat_str(status), vsi->idx,
6041 ice_vsi_type_str(type));
6045 /* Re-map HW VSI number, using VSI handle that has been
6046 * previously validated in ice_replay_vsi() call above
6048 vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx);
6050 /* enable the VSI */
6051 err = ice_ena_vsi(vsi, false);
6053 dev_err(dev, "enable VSI failed, err %d, VSI index %d, type %s\n",
6054 err, vsi->idx, ice_vsi_type_str(type));
6058 dev_info(dev, "VSI rebuilt. VSI index %d, type %s\n", vsi->idx,
6059 ice_vsi_type_str(type));
6066 * ice_update_pf_netdev_link - Update PF netdev link status
6067 * @pf: pointer to the PF instance
6069 static void ice_update_pf_netdev_link(struct ice_pf *pf)
6074 ice_for_each_vsi(pf, i) {
6075 struct ice_vsi *vsi = pf->vsi[i];
6077 if (!vsi || vsi->type != ICE_VSI_PF)
6080 ice_get_link_status(pf->vsi[i]->port_info, &link_up);
6082 netif_carrier_on(pf->vsi[i]->netdev);
6083 netif_tx_wake_all_queues(pf->vsi[i]->netdev);
6085 netif_carrier_off(pf->vsi[i]->netdev);
6086 netif_tx_stop_all_queues(pf->vsi[i]->netdev);
6092 * ice_rebuild - rebuild after reset
6093 * @pf: PF to rebuild
6094 * @reset_type: type of reset
6096 * Do not rebuild VF VSI in this flow because that is already handled via
6097 * ice_reset_all_vfs(). This is because requirements for resetting a VF after a
6098 * PFR/CORER/GLOBER/etc. are different than the normal flow. Also, we don't want
6099 * to reset/rebuild all the VF VSI twice.
6101 static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type)
6103 struct device *dev = ice_pf_to_dev(pf);
6104 struct ice_hw *hw = &pf->hw;
6105 enum ice_status ret;
6108 if (test_bit(ICE_DOWN, pf->state))
6109 goto clear_recovery;
6111 dev_dbg(dev, "rebuilding PF after reset_type=%d\n", reset_type);
6113 ret = ice_init_all_ctrlq(hw);
6115 dev_err(dev, "control queues init failed %s\n",
6117 goto err_init_ctrlq;
6120 /* if DDP was previously loaded successfully */
6121 if (!ice_is_safe_mode(pf)) {
6122 /* reload the SW DB of filter tables */
6123 if (reset_type == ICE_RESET_PFR)
6124 ice_fill_blk_tbls(hw);
6126 /* Reload DDP Package after CORER/GLOBR reset */
6127 ice_load_pkg(NULL, pf);
6130 ret = ice_clear_pf_cfg(hw);
6132 dev_err(dev, "clear PF configuration failed %s\n",
6134 goto err_init_ctrlq;
6137 if (pf->first_sw->dflt_vsi_ena)
6138 dev_info(dev, "Clearing default VSI, re-enable after reset completes\n");
6139 /* clear the default VSI configuration if it exists */
6140 pf->first_sw->dflt_vsi = NULL;
6141 pf->first_sw->dflt_vsi_ena = false;
6143 ice_clear_pxe_mode(hw);
6145 ret = ice_get_caps(hw);
6147 dev_err(dev, "ice_get_caps failed %s\n", ice_stat_str(ret));
6148 goto err_init_ctrlq;
6151 ret = ice_aq_set_mac_cfg(hw, ICE_AQ_SET_MAC_FRAME_SIZE_MAX, NULL);
6153 dev_err(dev, "set_mac_cfg failed %s\n", ice_stat_str(ret));
6154 goto err_init_ctrlq;
6157 err = ice_sched_init_port(hw->port_info);
6159 goto err_sched_init_port;
6161 /* start misc vector */
6162 err = ice_req_irq_msix_misc(pf);
6164 dev_err(dev, "misc vector setup failed: %d\n", err);
6165 goto err_sched_init_port;
6168 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) {
6169 wr32(hw, PFQF_FD_ENA, PFQF_FD_ENA_FD_ENA_M);
6170 if (!rd32(hw, PFQF_FD_SIZE)) {
6171 u16 unused, guar, b_effort;
6173 guar = hw->func_caps.fd_fltr_guar;
6174 b_effort = hw->func_caps.fd_fltr_best_effort;
6176 /* force guaranteed filter pool for PF */
6177 ice_alloc_fd_guar_item(hw, &unused, guar);
6178 /* force shared filter pool for PF */
6179 ice_alloc_fd_shrd_item(hw, &unused, b_effort);
6183 if (test_bit(ICE_FLAG_DCB_ENA, pf->flags))
6184 ice_dcb_rebuild(pf);
6186 /* rebuild PF VSI */
6187 err = ice_vsi_rebuild_by_type(pf, ICE_VSI_PF);
6189 dev_err(dev, "PF VSI rebuild failed: %d\n", err);
6190 goto err_vsi_rebuild;
6193 /* If Flow Director is active */
6194 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) {
6195 err = ice_vsi_rebuild_by_type(pf, ICE_VSI_CTRL);
6197 dev_err(dev, "control VSI rebuild failed: %d\n", err);
6198 goto err_vsi_rebuild;
6201 /* replay HW Flow Director recipes */
6203 ice_fdir_replay_flows(hw);
6205 /* replay Flow Director filters */
6206 ice_fdir_replay_fltrs(pf);
6208 ice_rebuild_arfs(pf);
6211 ice_update_pf_netdev_link(pf);
6213 /* tell the firmware we are up */
6214 ret = ice_send_version(pf);
6216 dev_err(dev, "Rebuild failed due to error sending driver version: %s\n",
6218 goto err_vsi_rebuild;
6221 ice_replay_post(hw);
6223 /* if we get here, reset flow is successful */
6224 clear_bit(ICE_RESET_FAILED, pf->state);
6228 err_sched_init_port:
6229 ice_sched_cleanup_all(hw);
6231 ice_shutdown_all_ctrlq(hw);
6232 set_bit(ICE_RESET_FAILED, pf->state);
6234 /* set this bit in PF state to control service task scheduling */
6235 set_bit(ICE_NEEDS_RESTART, pf->state);
6236 dev_err(dev, "Rebuild failed, unload and reload driver\n");
6240 * ice_max_xdp_frame_size - returns the maximum allowed frame size for XDP
6241 * @vsi: Pointer to VSI structure
6243 static int ice_max_xdp_frame_size(struct ice_vsi *vsi)
6245 if (PAGE_SIZE >= 8192 || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags))
6246 return ICE_RXBUF_2048 - XDP_PACKET_HEADROOM;
6248 return ICE_RXBUF_3072;
6252 * ice_change_mtu - NDO callback to change the MTU
6253 * @netdev: network interface device structure
6254 * @new_mtu: new value for maximum frame size
6256 * Returns 0 on success, negative on failure
6258 static int ice_change_mtu(struct net_device *netdev, int new_mtu)
6260 struct ice_netdev_priv *np = netdev_priv(netdev);
6261 struct ice_vsi *vsi = np->vsi;
6262 struct ice_pf *pf = vsi->back;
6265 if (new_mtu == (int)netdev->mtu) {
6266 netdev_warn(netdev, "MTU is already %u\n", netdev->mtu);
6270 if (ice_is_xdp_ena_vsi(vsi)) {
6271 int frame_size = ice_max_xdp_frame_size(vsi);
6273 if (new_mtu + ICE_ETH_PKT_HDR_PAD > frame_size) {
6274 netdev_err(netdev, "max MTU for XDP usage is %d\n",
6275 frame_size - ICE_ETH_PKT_HDR_PAD);
6280 /* if a reset is in progress, wait for some time for it to complete */
6282 if (ice_is_reset_in_progress(pf->state)) {
6284 usleep_range(1000, 2000);
6289 } while (count < 100);
6292 netdev_err(netdev, "can't change MTU. Device is busy\n");
6296 netdev->mtu = (unsigned int)new_mtu;
6298 /* if VSI is up, bring it down and then back up */
6299 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {
6302 err = ice_down(vsi);
6304 netdev_err(netdev, "change MTU if_down err %d\n", err);
6310 netdev_err(netdev, "change MTU if_up err %d\n", err);
6315 netdev_dbg(netdev, "changed MTU to %d\n", new_mtu);
6320 * ice_aq_str - convert AQ err code to a string
6321 * @aq_err: the AQ error code to convert
6323 const char *ice_aq_str(enum ice_aq_err aq_err)
6328 case ICE_AQ_RC_EPERM:
6329 return "ICE_AQ_RC_EPERM";
6330 case ICE_AQ_RC_ENOENT:
6331 return "ICE_AQ_RC_ENOENT";
6332 case ICE_AQ_RC_ENOMEM:
6333 return "ICE_AQ_RC_ENOMEM";
6334 case ICE_AQ_RC_EBUSY:
6335 return "ICE_AQ_RC_EBUSY";
6336 case ICE_AQ_RC_EEXIST:
6337 return "ICE_AQ_RC_EEXIST";
6338 case ICE_AQ_RC_EINVAL:
6339 return "ICE_AQ_RC_EINVAL";
6340 case ICE_AQ_RC_ENOSPC:
6341 return "ICE_AQ_RC_ENOSPC";
6342 case ICE_AQ_RC_ENOSYS:
6343 return "ICE_AQ_RC_ENOSYS";
6344 case ICE_AQ_RC_EMODE:
6345 return "ICE_AQ_RC_EMODE";
6346 case ICE_AQ_RC_ENOSEC:
6347 return "ICE_AQ_RC_ENOSEC";
6348 case ICE_AQ_RC_EBADSIG:
6349 return "ICE_AQ_RC_EBADSIG";
6350 case ICE_AQ_RC_ESVN:
6351 return "ICE_AQ_RC_ESVN";
6352 case ICE_AQ_RC_EBADMAN:
6353 return "ICE_AQ_RC_EBADMAN";
6354 case ICE_AQ_RC_EBADBUF:
6355 return "ICE_AQ_RC_EBADBUF";
6358 return "ICE_AQ_RC_UNKNOWN";
6362 * ice_stat_str - convert status err code to a string
6363 * @stat_err: the status error code to convert
6365 const char *ice_stat_str(enum ice_status stat_err)
6371 return "ICE_ERR_PARAM";
6372 case ICE_ERR_NOT_IMPL:
6373 return "ICE_ERR_NOT_IMPL";
6374 case ICE_ERR_NOT_READY:
6375 return "ICE_ERR_NOT_READY";
6376 case ICE_ERR_NOT_SUPPORTED:
6377 return "ICE_ERR_NOT_SUPPORTED";
6378 case ICE_ERR_BAD_PTR:
6379 return "ICE_ERR_BAD_PTR";
6380 case ICE_ERR_INVAL_SIZE:
6381 return "ICE_ERR_INVAL_SIZE";
6382 case ICE_ERR_DEVICE_NOT_SUPPORTED:
6383 return "ICE_ERR_DEVICE_NOT_SUPPORTED";
6384 case ICE_ERR_RESET_FAILED:
6385 return "ICE_ERR_RESET_FAILED";
6386 case ICE_ERR_FW_API_VER:
6387 return "ICE_ERR_FW_API_VER";
6388 case ICE_ERR_NO_MEMORY:
6389 return "ICE_ERR_NO_MEMORY";
6391 return "ICE_ERR_CFG";
6392 case ICE_ERR_OUT_OF_RANGE:
6393 return "ICE_ERR_OUT_OF_RANGE";
6394 case ICE_ERR_ALREADY_EXISTS:
6395 return "ICE_ERR_ALREADY_EXISTS";
6397 return "ICE_ERR_NVM";
6398 case ICE_ERR_NVM_CHECKSUM:
6399 return "ICE_ERR_NVM_CHECKSUM";
6400 case ICE_ERR_BUF_TOO_SHORT:
6401 return "ICE_ERR_BUF_TOO_SHORT";
6402 case ICE_ERR_NVM_BLANK_MODE:
6403 return "ICE_ERR_NVM_BLANK_MODE";
6404 case ICE_ERR_IN_USE:
6405 return "ICE_ERR_IN_USE";
6406 case ICE_ERR_MAX_LIMIT:
6407 return "ICE_ERR_MAX_LIMIT";
6408 case ICE_ERR_RESET_ONGOING:
6409 return "ICE_ERR_RESET_ONGOING";
6410 case ICE_ERR_HW_TABLE:
6411 return "ICE_ERR_HW_TABLE";
6412 case ICE_ERR_DOES_NOT_EXIST:
6413 return "ICE_ERR_DOES_NOT_EXIST";
6414 case ICE_ERR_FW_DDP_MISMATCH:
6415 return "ICE_ERR_FW_DDP_MISMATCH";
6416 case ICE_ERR_AQ_ERROR:
6417 return "ICE_ERR_AQ_ERROR";
6418 case ICE_ERR_AQ_TIMEOUT:
6419 return "ICE_ERR_AQ_TIMEOUT";
6420 case ICE_ERR_AQ_FULL:
6421 return "ICE_ERR_AQ_FULL";
6422 case ICE_ERR_AQ_NO_WORK:
6423 return "ICE_ERR_AQ_NO_WORK";
6424 case ICE_ERR_AQ_EMPTY:
6425 return "ICE_ERR_AQ_EMPTY";
6426 case ICE_ERR_AQ_FW_CRITICAL:
6427 return "ICE_ERR_AQ_FW_CRITICAL";
6430 return "ICE_ERR_UNKNOWN";
6434 * ice_set_rss_lut - Set RSS LUT
6435 * @vsi: Pointer to VSI structure
6436 * @lut: Lookup table
6437 * @lut_size: Lookup table size
6439 * Returns 0 on success, negative on failure
6441 int ice_set_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size)
6443 struct ice_aq_get_set_rss_lut_params params = {};
6444 struct ice_hw *hw = &vsi->back->hw;
6445 enum ice_status status;
6450 params.vsi_handle = vsi->idx;
6451 params.lut_size = lut_size;
6452 params.lut_type = vsi->rss_lut_type;
6455 status = ice_aq_set_rss_lut(hw, ¶ms);
6457 dev_err(ice_pf_to_dev(vsi->back), "Cannot set RSS lut, err %s aq_err %s\n",
6458 ice_stat_str(status),
6459 ice_aq_str(hw->adminq.sq_last_status));
6467 * ice_set_rss_key - Set RSS key
6468 * @vsi: Pointer to the VSI structure
6469 * @seed: RSS hash seed
6471 * Returns 0 on success, negative on failure
6473 int ice_set_rss_key(struct ice_vsi *vsi, u8 *seed)
6475 struct ice_hw *hw = &vsi->back->hw;
6476 enum ice_status status;
6481 status = ice_aq_set_rss_key(hw, vsi->idx, (struct ice_aqc_get_set_rss_keys *)seed);
6483 dev_err(ice_pf_to_dev(vsi->back), "Cannot set RSS key, err %s aq_err %s\n",
6484 ice_stat_str(status),
6485 ice_aq_str(hw->adminq.sq_last_status));
6493 * ice_get_rss_lut - Get RSS LUT
6494 * @vsi: Pointer to VSI structure
6495 * @lut: Buffer to store the lookup table entries
6496 * @lut_size: Size of buffer to store the lookup table entries
6498 * Returns 0 on success, negative on failure
6500 int ice_get_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size)
6502 struct ice_aq_get_set_rss_lut_params params = {};
6503 struct ice_hw *hw = &vsi->back->hw;
6504 enum ice_status status;
6509 params.vsi_handle = vsi->idx;
6510 params.lut_size = lut_size;
6511 params.lut_type = vsi->rss_lut_type;
6514 status = ice_aq_get_rss_lut(hw, ¶ms);
6516 dev_err(ice_pf_to_dev(vsi->back), "Cannot get RSS lut, err %s aq_err %s\n",
6517 ice_stat_str(status),
6518 ice_aq_str(hw->adminq.sq_last_status));
6526 * ice_get_rss_key - Get RSS key
6527 * @vsi: Pointer to VSI structure
6528 * @seed: Buffer to store the key in
6530 * Returns 0 on success, negative on failure
6532 int ice_get_rss_key(struct ice_vsi *vsi, u8 *seed)
6534 struct ice_hw *hw = &vsi->back->hw;
6535 enum ice_status status;
6540 status = ice_aq_get_rss_key(hw, vsi->idx, (struct ice_aqc_get_set_rss_keys *)seed);
6542 dev_err(ice_pf_to_dev(vsi->back), "Cannot get RSS key, err %s aq_err %s\n",
6543 ice_stat_str(status),
6544 ice_aq_str(hw->adminq.sq_last_status));
6552 * ice_bridge_getlink - Get the hardware bridge mode
6555 * @seq: RTNL message seq
6556 * @dev: the netdev being configured
6557 * @filter_mask: filter mask passed in
6558 * @nlflags: netlink flags passed in
6560 * Return the bridge mode (VEB/VEPA)
6563 ice_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
6564 struct net_device *dev, u32 filter_mask, int nlflags)
6566 struct ice_netdev_priv *np = netdev_priv(dev);
6567 struct ice_vsi *vsi = np->vsi;
6568 struct ice_pf *pf = vsi->back;
6571 bmode = pf->first_sw->bridge_mode;
6573 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bmode, 0, 0, nlflags,
6578 * ice_vsi_update_bridge_mode - Update VSI for switching bridge mode (VEB/VEPA)
6579 * @vsi: Pointer to VSI structure
6580 * @bmode: Hardware bridge mode (VEB/VEPA)
6582 * Returns 0 on success, negative on failure
6584 static int ice_vsi_update_bridge_mode(struct ice_vsi *vsi, u16 bmode)
6586 struct ice_aqc_vsi_props *vsi_props;
6587 struct ice_hw *hw = &vsi->back->hw;
6588 struct ice_vsi_ctx *ctxt;
6589 enum ice_status status;
6592 vsi_props = &vsi->info;
6594 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
6598 ctxt->info = vsi->info;
6600 if (bmode == BRIDGE_MODE_VEB)
6601 /* change from VEPA to VEB mode */
6602 ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB;
6604 /* change from VEB to VEPA mode */
6605 ctxt->info.sw_flags &= ~ICE_AQ_VSI_SW_FLAG_ALLOW_LB;
6606 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID);
6608 status = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
6610 dev_err(ice_pf_to_dev(vsi->back), "update VSI for bridge mode failed, bmode = %d err %s aq_err %s\n",
6611 bmode, ice_stat_str(status),
6612 ice_aq_str(hw->adminq.sq_last_status));
6616 /* Update sw flags for book keeping */
6617 vsi_props->sw_flags = ctxt->info.sw_flags;
6625 * ice_bridge_setlink - Set the hardware bridge mode
6626 * @dev: the netdev being configured
6627 * @nlh: RTNL message
6628 * @flags: bridge setlink flags
6629 * @extack: netlink extended ack
6631 * Sets the bridge mode (VEB/VEPA) of the switch to which the netdev (VSI) is
6632 * hooked up to. Iterates through the PF VSI list and sets the loopback mode (if
6633 * not already set for all VSIs connected to this switch. And also update the
6634 * unicast switch filter rules for the corresponding switch of the netdev.
6637 ice_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
6638 u16 __always_unused flags,
6639 struct netlink_ext_ack __always_unused *extack)
6641 struct ice_netdev_priv *np = netdev_priv(dev);
6642 struct ice_pf *pf = np->vsi->back;
6643 struct nlattr *attr, *br_spec;
6644 struct ice_hw *hw = &pf->hw;
6645 enum ice_status status;
6646 struct ice_sw *pf_sw;
6647 int rem, v, err = 0;
6649 pf_sw = pf->first_sw;
6650 /* find the attribute in the netlink message */
6651 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
6653 nla_for_each_nested(attr, br_spec, rem) {
6656 if (nla_type(attr) != IFLA_BRIDGE_MODE)
6658 mode = nla_get_u16(attr);
6659 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
6661 /* Continue if bridge mode is not being flipped */
6662 if (mode == pf_sw->bridge_mode)
6664 /* Iterates through the PF VSI list and update the loopback
6667 ice_for_each_vsi(pf, v) {
6670 err = ice_vsi_update_bridge_mode(pf->vsi[v], mode);
6675 hw->evb_veb = (mode == BRIDGE_MODE_VEB);
6676 /* Update the unicast switch filter rules for the corresponding
6677 * switch of the netdev
6679 status = ice_update_sw_rule_bridge_mode(hw);
6681 netdev_err(dev, "switch rule update failed, mode = %d err %s aq_err %s\n",
6682 mode, ice_stat_str(status),
6683 ice_aq_str(hw->adminq.sq_last_status));
6684 /* revert hw->evb_veb */
6685 hw->evb_veb = (pf_sw->bridge_mode == BRIDGE_MODE_VEB);
6689 pf_sw->bridge_mode = mode;
6696 * ice_tx_timeout - Respond to a Tx Hang
6697 * @netdev: network interface device structure
6698 * @txqueue: Tx queue
6700 static void ice_tx_timeout(struct net_device *netdev, unsigned int txqueue)
6702 struct ice_netdev_priv *np = netdev_priv(netdev);
6703 struct ice_ring *tx_ring = NULL;
6704 struct ice_vsi *vsi = np->vsi;
6705 struct ice_pf *pf = vsi->back;
6708 pf->tx_timeout_count++;
6710 /* Check if PFC is enabled for the TC to which the queue belongs
6711 * to. If yes then Tx timeout is not caused by a hung queue, no
6712 * need to reset and rebuild
6714 if (ice_is_pfc_causing_hung_q(pf, txqueue)) {
6715 dev_info(ice_pf_to_dev(pf), "Fake Tx hang detected on queue %u, timeout caused by PFC storm\n",
6720 /* now that we have an index, find the tx_ring struct */
6721 for (i = 0; i < vsi->num_txq; i++)
6722 if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc)
6723 if (txqueue == vsi->tx_rings[i]->q_index) {
6724 tx_ring = vsi->tx_rings[i];
6728 /* Reset recovery level if enough time has elapsed after last timeout.
6729 * Also ensure no new reset action happens before next timeout period.
6731 if (time_after(jiffies, (pf->tx_timeout_last_recovery + HZ * 20)))
6732 pf->tx_timeout_recovery_level = 1;
6733 else if (time_before(jiffies, (pf->tx_timeout_last_recovery +
6734 netdev->watchdog_timeo)))
6738 struct ice_hw *hw = &pf->hw;
6741 head = (rd32(hw, QTX_COMM_HEAD(vsi->txq_map[txqueue])) &
6742 QTX_COMM_HEAD_HEAD_M) >> QTX_COMM_HEAD_HEAD_S;
6743 /* Read interrupt register */
6744 val = rd32(hw, GLINT_DYN_CTL(tx_ring->q_vector->reg_idx));
6746 netdev_info(netdev, "tx_timeout: VSI_num: %d, Q %u, NTC: 0x%x, HW_HEAD: 0x%x, NTU: 0x%x, INT: 0x%x\n",
6747 vsi->vsi_num, txqueue, tx_ring->next_to_clean,
6748 head, tx_ring->next_to_use, val);
6751 pf->tx_timeout_last_recovery = jiffies;
6752 netdev_info(netdev, "tx_timeout recovery level %d, txqueue %u\n",
6753 pf->tx_timeout_recovery_level, txqueue);
6755 switch (pf->tx_timeout_recovery_level) {
6757 set_bit(ICE_PFR_REQ, pf->state);
6760 set_bit(ICE_CORER_REQ, pf->state);
6763 set_bit(ICE_GLOBR_REQ, pf->state);
6766 netdev_err(netdev, "tx_timeout recovery unsuccessful, device is in unrecoverable state.\n");
6767 set_bit(ICE_DOWN, pf->state);
6768 set_bit(ICE_VSI_NEEDS_RESTART, vsi->state);
6769 set_bit(ICE_SERVICE_DIS, pf->state);
6773 ice_service_task_schedule(pf);
6774 pf->tx_timeout_recovery_level++;
6778 * ice_open - Called when a network interface becomes active
6779 * @netdev: network interface device structure
6781 * The open entry point is called when a network interface is made
6782 * active by the system (IFF_UP). At this point all resources needed
6783 * for transmit and receive operations are allocated, the interrupt
6784 * handler is registered with the OS, the netdev watchdog is enabled,
6785 * and the stack is notified that the interface is ready.
6787 * Returns 0 on success, negative value on failure
6789 int ice_open(struct net_device *netdev)
6791 struct ice_netdev_priv *np = netdev_priv(netdev);
6792 struct ice_pf *pf = np->vsi->back;
6794 if (ice_is_reset_in_progress(pf->state)) {
6795 netdev_err(netdev, "can't open net device while reset is in progress");
6799 return ice_open_internal(netdev);
6803 * ice_open_internal - Called when a network interface becomes active
6804 * @netdev: network interface device structure
6806 * Internal ice_open implementation. Should not be used directly except for ice_open and reset
6809 * Returns 0 on success, negative value on failure
6811 int ice_open_internal(struct net_device *netdev)
6813 struct ice_netdev_priv *np = netdev_priv(netdev);
6814 struct ice_vsi *vsi = np->vsi;
6815 struct ice_pf *pf = vsi->back;
6816 struct ice_port_info *pi;
6817 enum ice_status status;
6820 if (test_bit(ICE_NEEDS_RESTART, pf->state)) {
6821 netdev_err(netdev, "driver needs to be unloaded and reloaded\n");
6825 netif_carrier_off(netdev);
6827 pi = vsi->port_info;
6828 status = ice_update_link_info(pi);
6830 netdev_err(netdev, "Failed to get link info, error %s\n",
6831 ice_stat_str(status));
6835 /* Set PHY if there is media, otherwise, turn off PHY */
6836 if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) {
6837 clear_bit(ICE_FLAG_NO_MEDIA, pf->flags);
6838 if (!test_bit(ICE_PHY_INIT_COMPLETE, pf->state)) {
6839 err = ice_init_phy_user_cfg(pi);
6841 netdev_err(netdev, "Failed to initialize PHY settings, error %d\n",
6847 err = ice_configure_phy(vsi);
6849 netdev_err(netdev, "Failed to set physical link up, error %d\n",
6854 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);
6855 ice_set_link(vsi, false);
6858 err = ice_vsi_open(vsi);
6860 netdev_err(netdev, "Failed to open VSI 0x%04X on switch 0x%04X\n",
6861 vsi->vsi_num, vsi->vsw->sw_id);
6863 /* Update existing tunnels information */
6864 udp_tunnel_get_rx_info(netdev);
6870 * ice_stop - Disables a network interface
6871 * @netdev: network interface device structure
6873 * The stop entry point is called when an interface is de-activated by the OS,
6874 * and the netdevice enters the DOWN state. The hardware is still under the
6875 * driver's control, but the netdev interface is disabled.
6877 * Returns success only - not allowed to fail
6879 int ice_stop(struct net_device *netdev)
6881 struct ice_netdev_priv *np = netdev_priv(netdev);
6882 struct ice_vsi *vsi = np->vsi;
6883 struct ice_pf *pf = vsi->back;
6885 if (ice_is_reset_in_progress(pf->state)) {
6886 netdev_err(netdev, "can't stop net device while reset is in progress");
6896 * ice_features_check - Validate encapsulated packet conforms to limits
6898 * @netdev: This port's netdev
6899 * @features: Offload features that the stack believes apply
6901 static netdev_features_t
6902 ice_features_check(struct sk_buff *skb,
6903 struct net_device __always_unused *netdev,
6904 netdev_features_t features)
6908 /* No point in doing any of this if neither checksum nor GSO are
6909 * being requested for this frame. We can rule out both by just
6910 * checking for CHECKSUM_PARTIAL
6912 if (skb->ip_summed != CHECKSUM_PARTIAL)
6915 /* We cannot support GSO if the MSS is going to be less than
6916 * 64 bytes. If it is then we need to drop support for GSO.
6918 if (skb_is_gso(skb) && (skb_shinfo(skb)->gso_size < 64))
6919 features &= ~NETIF_F_GSO_MASK;
6921 len = skb_network_header(skb) - skb->data;
6922 if (len > ICE_TXD_MACLEN_MAX || len & 0x1)
6923 goto out_rm_features;
6925 len = skb_transport_header(skb) - skb_network_header(skb);
6926 if (len > ICE_TXD_IPLEN_MAX || len & 0x1)
6927 goto out_rm_features;
6929 if (skb->encapsulation) {
6930 len = skb_inner_network_header(skb) - skb_transport_header(skb);
6931 if (len > ICE_TXD_L4LEN_MAX || len & 0x1)
6932 goto out_rm_features;
6934 len = skb_inner_transport_header(skb) -
6935 skb_inner_network_header(skb);
6936 if (len > ICE_TXD_IPLEN_MAX || len & 0x1)
6937 goto out_rm_features;
6942 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
6945 static const struct net_device_ops ice_netdev_safe_mode_ops = {
6946 .ndo_open = ice_open,
6947 .ndo_stop = ice_stop,
6948 .ndo_start_xmit = ice_start_xmit,
6949 .ndo_set_mac_address = ice_set_mac_address,
6950 .ndo_validate_addr = eth_validate_addr,
6951 .ndo_change_mtu = ice_change_mtu,
6952 .ndo_get_stats64 = ice_get_stats64,
6953 .ndo_tx_timeout = ice_tx_timeout,
6954 .ndo_bpf = ice_xdp_safe_mode,
6957 static const struct net_device_ops ice_netdev_ops = {
6958 .ndo_open = ice_open,
6959 .ndo_stop = ice_stop,
6960 .ndo_start_xmit = ice_start_xmit,
6961 .ndo_features_check = ice_features_check,
6962 .ndo_set_rx_mode = ice_set_rx_mode,
6963 .ndo_set_mac_address = ice_set_mac_address,
6964 .ndo_validate_addr = eth_validate_addr,
6965 .ndo_change_mtu = ice_change_mtu,
6966 .ndo_get_stats64 = ice_get_stats64,
6967 .ndo_set_tx_maxrate = ice_set_tx_maxrate,
6968 .ndo_set_vf_spoofchk = ice_set_vf_spoofchk,
6969 .ndo_set_vf_mac = ice_set_vf_mac,
6970 .ndo_get_vf_config = ice_get_vf_cfg,
6971 .ndo_set_vf_trust = ice_set_vf_trust,
6972 .ndo_set_vf_vlan = ice_set_vf_port_vlan,
6973 .ndo_set_vf_link_state = ice_set_vf_link_state,
6974 .ndo_get_vf_stats = ice_get_vf_stats,
6975 .ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid,
6976 .ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid,
6977 .ndo_set_features = ice_set_features,
6978 .ndo_bridge_getlink = ice_bridge_getlink,
6979 .ndo_bridge_setlink = ice_bridge_setlink,
6980 .ndo_fdb_add = ice_fdb_add,
6981 .ndo_fdb_del = ice_fdb_del,
6982 #ifdef CONFIG_RFS_ACCEL
6983 .ndo_rx_flow_steer = ice_rx_flow_steer,
6985 .ndo_tx_timeout = ice_tx_timeout,
6987 .ndo_xdp_xmit = ice_xdp_xmit,
6988 .ndo_xsk_wakeup = ice_xsk_wakeup,