diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_main.c | 9194 |
1 files changed, 9194 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c new file mode 100644 index 000000000..ab46cfca4 --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -0,0 +1,9194 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2018, Intel Corporation. */ + +/* Intel(R) Ethernet Connection E800 Series Linux Driver */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <generated/utsrelease.h> +#include <linux/crash_dump.h> +#include "ice.h" +#include "ice_base.h" +#include "ice_lib.h" +#include "ice_fltr.h" +#include "ice_dcb_lib.h" +#include "ice_dcb_nl.h" +#include "ice_devlink.h" +/* Including ice_trace.h with CREATE_TRACE_POINTS defined will generate the + * ice tracepoint functions. This must be done exactly once across the + * ice driver. + */ +#define CREATE_TRACE_POINTS +#include "ice_trace.h" +#include "ice_eswitch.h" +#include "ice_tc_lib.h" +#include "ice_vsi_vlan_ops.h" + +#define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver" +static const char ice_driver_string[] = DRV_SUMMARY; +static const char ice_copyright[] = "Copyright (c) 2018, Intel Corporation."; + +/* DDP Package file located in firmware search paths (e.g. /lib/firmware/) */ +#define ICE_DDP_PKG_PATH "intel/ice/ddp/" +#define ICE_DDP_PKG_FILE ICE_DDP_PKG_PATH "ice.pkg" + +MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); +MODULE_DESCRIPTION(DRV_SUMMARY); +MODULE_LICENSE("GPL v2"); +MODULE_FIRMWARE(ICE_DDP_PKG_FILE); + +static int debug = -1; +module_param(debug, int, 0644); +#ifndef CONFIG_DYNAMIC_DEBUG +MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all), hw debug_mask (0x8XXXXXXX)"); +#else +MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)"); +#endif /* !CONFIG_DYNAMIC_DEBUG */ + +static DEFINE_IDA(ice_aux_ida); +DEFINE_STATIC_KEY_FALSE(ice_xdp_locking_key); +EXPORT_SYMBOL(ice_xdp_locking_key); + +/** + * ice_hw_to_dev - Get device pointer from the hardware structure + * @hw: pointer to the device HW structure + * + * Used to access the device pointer from compilation units which can't easily + * include the definition of struct ice_pf without leading to circular header + * dependencies. + */ +struct device *ice_hw_to_dev(struct ice_hw *hw) +{ + struct ice_pf *pf = container_of(hw, struct ice_pf, hw); + + return &pf->pdev->dev; +} + +static struct workqueue_struct *ice_wq; +static const struct net_device_ops ice_netdev_safe_mode_ops; +static const struct net_device_ops ice_netdev_ops; + +static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type); + +static void ice_vsi_release_all(struct ice_pf *pf); + +static int ice_rebuild_channels(struct ice_pf *pf); +static void ice_remove_q_channels(struct ice_vsi *vsi, bool rem_adv_fltr); + +static int +ice_indr_setup_tc_cb(struct net_device *netdev, struct Qdisc *sch, + void *cb_priv, enum tc_setup_type type, void *type_data, + void *data, + void (*cleanup)(struct flow_block_cb *block_cb)); + +bool netif_is_ice(struct net_device *dev) +{ + return dev && (dev->netdev_ops == &ice_netdev_ops); +} + +/** + * ice_get_tx_pending - returns number of Tx descriptors not processed + * @ring: the ring of descriptors + */ +static u16 ice_get_tx_pending(struct ice_tx_ring *ring) +{ + u16 head, tail; + + head = ring->next_to_clean; + tail = ring->next_to_use; + + if (head != tail) + return (head < tail) ? + tail - head : (tail + ring->count - head); + return 0; +} + +/** + * ice_check_for_hang_subtask - check for and recover hung queues + * @pf: pointer to PF struct + */ +static void ice_check_for_hang_subtask(struct ice_pf *pf) +{ + struct ice_vsi *vsi = NULL; + struct ice_hw *hw; + unsigned int i; + int packets; + u32 v; + + ice_for_each_vsi(pf, v) + if (pf->vsi[v] && pf->vsi[v]->type == ICE_VSI_PF) { + vsi = pf->vsi[v]; + break; + } + + if (!vsi || test_bit(ICE_VSI_DOWN, vsi->state)) + return; + + if (!(vsi->netdev && netif_carrier_ok(vsi->netdev))) + return; + + hw = &vsi->back->hw; + + ice_for_each_txq(vsi, i) { + struct ice_tx_ring *tx_ring = vsi->tx_rings[i]; + + if (!tx_ring) + continue; + if (ice_ring_ch_enabled(tx_ring)) + continue; + + if (tx_ring->desc) { + /* If packet counter has not changed the queue is + * likely stalled, so force an interrupt for this + * queue. + * + * prev_pkt would be negative if there was no + * pending work. + */ + packets = tx_ring->stats.pkts & INT_MAX; + if (tx_ring->tx_stats.prev_pkt == packets) { + /* Trigger sw interrupt to revive the queue */ + ice_trigger_sw_intr(hw, tx_ring->q_vector); + continue; + } + + /* Memory barrier between read of packet count and call + * to ice_get_tx_pending() + */ + smp_rmb(); + tx_ring->tx_stats.prev_pkt = + ice_get_tx_pending(tx_ring) ? packets : -1; + } + } +} + +/** + * ice_init_mac_fltr - Set initial MAC filters + * @pf: board private structure + * + * Set initial set of MAC filters for PF VSI; configure filters for permanent + * address and broadcast address. If an error is encountered, netdevice will be + * unregistered. + */ +static int ice_init_mac_fltr(struct ice_pf *pf) +{ + struct ice_vsi *vsi; + u8 *perm_addr; + + vsi = ice_get_main_vsi(pf); + if (!vsi) + return -EINVAL; + + perm_addr = vsi->port_info->mac.perm_addr; + return ice_fltr_add_mac_and_broadcast(vsi, perm_addr, ICE_FWD_TO_VSI); +} + +/** + * ice_add_mac_to_sync_list - creates list of MAC addresses to be synced + * @netdev: the net device on which the sync is happening + * @addr: MAC address to sync + * + * This is a callback function which is called by the in kernel device sync + * functions (like __dev_uc_sync, __dev_mc_sync, etc). This function only + * populates the tmp_sync_list, which is later used by ice_add_mac to add the + * MAC filters from the hardware. + */ +static int ice_add_mac_to_sync_list(struct net_device *netdev, const u8 *addr) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + + if (ice_fltr_add_mac_to_list(vsi, &vsi->tmp_sync_list, addr, + ICE_FWD_TO_VSI)) + return -EINVAL; + + return 0; +} + +/** + * ice_add_mac_to_unsync_list - creates list of MAC addresses to be unsynced + * @netdev: the net device on which the unsync is happening + * @addr: MAC address to unsync + * + * This is a callback function which is called by the in kernel device unsync + * functions (like __dev_uc_unsync, __dev_mc_unsync, etc). This function only + * populates the tmp_unsync_list, which is later used by ice_remove_mac to + * delete the MAC filters from the hardware. + */ +static int ice_add_mac_to_unsync_list(struct net_device *netdev, const u8 *addr) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + + /* Under some circumstances, we might receive a request to delete our + * own device address from our uc list. Because we store the device + * address in the VSI's MAC filter list, we need to ignore such + * requests and not delete our device address from this list. + */ + if (ether_addr_equal(addr, netdev->dev_addr)) + return 0; + + if (ice_fltr_add_mac_to_list(vsi, &vsi->tmp_unsync_list, addr, + ICE_FWD_TO_VSI)) + return -EINVAL; + + return 0; +} + +/** + * ice_vsi_fltr_changed - check if filter state changed + * @vsi: VSI to be checked + * + * returns true if filter state has changed, false otherwise. + */ +static bool ice_vsi_fltr_changed(struct ice_vsi *vsi) +{ + return test_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state) || + test_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state); +} + +/** + * ice_set_promisc - Enable promiscuous mode for a given PF + * @vsi: the VSI being configured + * @promisc_m: mask of promiscuous config bits + * + */ +static int ice_set_promisc(struct ice_vsi *vsi, u8 promisc_m) +{ + int status; + + if (vsi->type != ICE_VSI_PF) + return 0; + + if (ice_vsi_has_non_zero_vlans(vsi)) { + promisc_m |= (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX); + status = ice_fltr_set_vlan_vsi_promisc(&vsi->back->hw, vsi, + promisc_m); + } else { + status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, + promisc_m, 0); + } + if (status && status != -EEXIST) + return status; + + netdev_dbg(vsi->netdev, "set promisc filter bits for VSI %i: 0x%x\n", + vsi->vsi_num, promisc_m); + return 0; +} + +/** + * ice_clear_promisc - Disable promiscuous mode for a given PF + * @vsi: the VSI being configured + * @promisc_m: mask of promiscuous config bits + * + */ +static int ice_clear_promisc(struct ice_vsi *vsi, u8 promisc_m) +{ + int status; + + if (vsi->type != ICE_VSI_PF) + return 0; + + if (ice_vsi_has_non_zero_vlans(vsi)) { + promisc_m |= (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX); + status = ice_fltr_clear_vlan_vsi_promisc(&vsi->back->hw, vsi, + promisc_m); + } else { + status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, + promisc_m, 0); + } + + netdev_dbg(vsi->netdev, "clear promisc filter bits for VSI %i: 0x%x\n", + vsi->vsi_num, promisc_m); + return status; +} + +/** + * ice_get_devlink_port - Get devlink port from netdev + * @netdev: the netdevice structure + */ +static struct devlink_port *ice_get_devlink_port(struct net_device *netdev) +{ + struct ice_pf *pf = ice_netdev_to_pf(netdev); + + if (!ice_is_switchdev_running(pf)) + return NULL; + + return &pf->devlink_port; +} + +/** + * ice_vsi_sync_fltr - Update the VSI filter list to the HW + * @vsi: ptr to the VSI + * + * Push any outstanding VSI filter changes through the AdminQ. + */ +static int ice_vsi_sync_fltr(struct ice_vsi *vsi) +{ + struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); + struct device *dev = ice_pf_to_dev(vsi->back); + struct net_device *netdev = vsi->netdev; + bool promisc_forced_on = false; + struct ice_pf *pf = vsi->back; + struct ice_hw *hw = &pf->hw; + u32 changed_flags = 0; + int err; + + if (!vsi->netdev) + return -EINVAL; + + while (test_and_set_bit(ICE_CFG_BUSY, vsi->state)) + usleep_range(1000, 2000); + + changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags; + vsi->current_netdev_flags = vsi->netdev->flags; + + INIT_LIST_HEAD(&vsi->tmp_sync_list); + INIT_LIST_HEAD(&vsi->tmp_unsync_list); + + if (ice_vsi_fltr_changed(vsi)) { + clear_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state); + clear_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state); + + /* grab the netdev's addr_list_lock */ + netif_addr_lock_bh(netdev); + __dev_uc_sync(netdev, ice_add_mac_to_sync_list, + ice_add_mac_to_unsync_list); + __dev_mc_sync(netdev, ice_add_mac_to_sync_list, + ice_add_mac_to_unsync_list); + /* our temp lists are populated. release lock */ + netif_addr_unlock_bh(netdev); + } + + /* Remove MAC addresses in the unsync list */ + err = ice_fltr_remove_mac_list(vsi, &vsi->tmp_unsync_list); + ice_fltr_free_list(dev, &vsi->tmp_unsync_list); + if (err) { + netdev_err(netdev, "Failed to delete MAC filters\n"); + /* if we failed because of alloc failures, just bail */ + if (err == -ENOMEM) + goto out; + } + + /* Add MAC addresses in the sync list */ + err = ice_fltr_add_mac_list(vsi, &vsi->tmp_sync_list); + ice_fltr_free_list(dev, &vsi->tmp_sync_list); + /* If filter is added successfully or already exists, do not go into + * 'if' condition and report it as error. Instead continue processing + * rest of the function. + */ + if (err && err != -EEXIST) { + netdev_err(netdev, "Failed to add MAC filters\n"); + /* If there is no more space for new umac filters, VSI + * should go into promiscuous mode. There should be some + * space reserved for promiscuous filters. + */ + if (hw->adminq.sq_last_status == ICE_AQ_RC_ENOSPC && + !test_and_set_bit(ICE_FLTR_OVERFLOW_PROMISC, + vsi->state)) { + promisc_forced_on = true; + netdev_warn(netdev, "Reached MAC filter limit, forcing promisc mode on VSI %d\n", + vsi->vsi_num); + } else { + goto out; + } + } + err = 0; + /* check for changes in promiscuous modes */ + if (changed_flags & IFF_ALLMULTI) { + if (vsi->current_netdev_flags & IFF_ALLMULTI) { + err = ice_set_promisc(vsi, ICE_MCAST_PROMISC_BITS); + if (err) { + vsi->current_netdev_flags &= ~IFF_ALLMULTI; + goto out_promisc; + } + } else { + /* !(vsi->current_netdev_flags & IFF_ALLMULTI) */ + err = ice_clear_promisc(vsi, ICE_MCAST_PROMISC_BITS); + if (err) { + vsi->current_netdev_flags |= IFF_ALLMULTI; + goto out_promisc; + } + } + } + + if (((changed_flags & IFF_PROMISC) || promisc_forced_on) || + test_bit(ICE_VSI_PROMISC_CHANGED, vsi->state)) { + clear_bit(ICE_VSI_PROMISC_CHANGED, vsi->state); + if (vsi->current_netdev_flags & IFF_PROMISC) { + /* Apply Rx filter rule to get traffic from wire */ + if (!ice_is_dflt_vsi_in_use(vsi->port_info)) { + err = ice_set_dflt_vsi(vsi); + if (err && err != -EEXIST) { + netdev_err(netdev, "Error %d setting default VSI %i Rx rule\n", + err, vsi->vsi_num); + vsi->current_netdev_flags &= + ~IFF_PROMISC; + goto out_promisc; + } + err = 0; + vlan_ops->dis_rx_filtering(vsi); + + /* promiscuous mode implies allmulticast so + * that VSIs that are in promiscuous mode are + * subscribed to multicast packets coming to + * the port + */ + err = ice_set_promisc(vsi, + ICE_MCAST_PROMISC_BITS); + if (err) + goto out_promisc; + } + } else { + /* Clear Rx filter to remove traffic from wire */ + if (ice_is_vsi_dflt_vsi(vsi)) { + err = ice_clear_dflt_vsi(vsi); + if (err) { + netdev_err(netdev, "Error %d clearing default VSI %i Rx rule\n", + err, vsi->vsi_num); + vsi->current_netdev_flags |= + IFF_PROMISC; + goto out_promisc; + } + if (vsi->netdev->features & + NETIF_F_HW_VLAN_CTAG_FILTER) + vlan_ops->ena_rx_filtering(vsi); + } + + /* disable allmulti here, but only if allmulti is not + * still enabled for the netdev + */ + if (!(vsi->current_netdev_flags & IFF_ALLMULTI)) { + err = ice_clear_promisc(vsi, + ICE_MCAST_PROMISC_BITS); + if (err) { + netdev_err(netdev, "Error %d clearing multicast promiscuous on VSI %i\n", + err, vsi->vsi_num); + } + } + } + } + goto exit; + +out_promisc: + set_bit(ICE_VSI_PROMISC_CHANGED, vsi->state); + goto exit; +out: + /* if something went wrong then set the changed flag so we try again */ + set_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state); + set_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state); +exit: + clear_bit(ICE_CFG_BUSY, vsi->state); + return err; +} + +/** + * ice_sync_fltr_subtask - Sync the VSI filter list with HW + * @pf: board private structure + */ +static void ice_sync_fltr_subtask(struct ice_pf *pf) +{ + int v; + + if (!pf || !(test_bit(ICE_FLAG_FLTR_SYNC, pf->flags))) + return; + + clear_bit(ICE_FLAG_FLTR_SYNC, pf->flags); + + ice_for_each_vsi(pf, v) + if (pf->vsi[v] && ice_vsi_fltr_changed(pf->vsi[v]) && + ice_vsi_sync_fltr(pf->vsi[v])) { + /* come back and try again later */ + set_bit(ICE_FLAG_FLTR_SYNC, pf->flags); + break; + } +} + +/** + * ice_pf_dis_all_vsi - Pause all VSIs on a PF + * @pf: the PF + * @locked: is the rtnl_lock already held + */ +static void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked) +{ + int node; + int v; + + ice_for_each_vsi(pf, v) + if (pf->vsi[v]) + ice_dis_vsi(pf->vsi[v], locked); + + for (node = 0; node < ICE_MAX_PF_AGG_NODES; node++) + pf->pf_agg_node[node].num_vsis = 0; + + for (node = 0; node < ICE_MAX_VF_AGG_NODES; node++) + pf->vf_agg_node[node].num_vsis = 0; +} + +/** + * ice_clear_sw_switch_recipes - clear switch recipes + * @pf: board private structure + * + * Mark switch recipes as not created in sw structures. There are cases where + * rules (especially advanced rules) need to be restored, either re-read from + * hardware or added again. For example after the reset. 'recp_created' flag + * prevents from doing that and need to be cleared upfront. + */ +static void ice_clear_sw_switch_recipes(struct ice_pf *pf) +{ + struct ice_sw_recipe *recp; + u8 i; + + recp = pf->hw.switch_info->recp_list; + for (i = 0; i < ICE_MAX_NUM_RECIPES; i++) + recp[i].recp_created = false; +} + +/** + * ice_prepare_for_reset - prep for reset + * @pf: board private structure + * @reset_type: reset type requested + * + * Inform or close all dependent features in prep for reset. + */ +static void +ice_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type) +{ + struct ice_hw *hw = &pf->hw; + struct ice_vsi *vsi; + struct ice_vf *vf; + unsigned int bkt; + + dev_dbg(ice_pf_to_dev(pf), "reset_type=%d\n", reset_type); + + /* already prepared for reset */ + if (test_bit(ICE_PREPARED_FOR_RESET, pf->state)) + return; + + ice_unplug_aux_dev(pf); + + /* Notify VFs of impending reset */ + if (ice_check_sq_alive(hw, &hw->mailboxq)) + ice_vc_notify_reset(pf); + + /* Disable VFs until reset is completed */ + mutex_lock(&pf->vfs.table_lock); + ice_for_each_vf(pf, bkt, vf) + ice_set_vf_state_dis(vf); + mutex_unlock(&pf->vfs.table_lock); + + if (ice_is_eswitch_mode_switchdev(pf)) { + if (reset_type != ICE_RESET_PFR) + ice_clear_sw_switch_recipes(pf); + } + + /* release ADQ specific HW and SW resources */ + vsi = ice_get_main_vsi(pf); + if (!vsi) + goto skip; + + /* to be on safe side, reset orig_rss_size so that normal flow + * of deciding rss_size can take precedence + */ + vsi->orig_rss_size = 0; + + if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) { + if (reset_type == ICE_RESET_PFR) { + vsi->old_ena_tc = vsi->all_enatc; + vsi->old_numtc = vsi->all_numtc; + } else { + ice_remove_q_channels(vsi, true); + + /* for other reset type, do not support channel rebuild + * hence reset needed info + */ + vsi->old_ena_tc = 0; + vsi->all_enatc = 0; + vsi->old_numtc = 0; + vsi->all_numtc = 0; + vsi->req_txq = 0; + vsi->req_rxq = 0; + clear_bit(ICE_FLAG_TC_MQPRIO, pf->flags); + memset(&vsi->mqprio_qopt, 0, sizeof(vsi->mqprio_qopt)); + } + } +skip: + + /* clear SW filtering DB */ + ice_clear_hw_tbls(hw); + /* disable the VSIs and their queues that are not already DOWN */ + ice_pf_dis_all_vsi(pf, false); + + if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) + ice_ptp_prepare_for_reset(pf); + + if (ice_is_feature_supported(pf, ICE_F_GNSS)) + ice_gnss_exit(pf); + + if (hw->port_info) + ice_sched_clear_port(hw->port_info); + + ice_shutdown_all_ctrlq(hw); + + set_bit(ICE_PREPARED_FOR_RESET, pf->state); +} + +/** + * ice_do_reset - Initiate one of many types of resets + * @pf: board private structure + * @reset_type: reset type requested before this function was called. + */ +static void ice_do_reset(struct ice_pf *pf, enum ice_reset_req reset_type) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_hw *hw = &pf->hw; + + dev_dbg(dev, "reset_type 0x%x requested\n", reset_type); + + ice_prepare_for_reset(pf, reset_type); + + /* trigger the reset */ + if (ice_reset(hw, reset_type)) { + dev_err(dev, "reset %d failed\n", reset_type); + set_bit(ICE_RESET_FAILED, pf->state); + clear_bit(ICE_RESET_OICR_RECV, pf->state); + clear_bit(ICE_PREPARED_FOR_RESET, pf->state); + clear_bit(ICE_PFR_REQ, pf->state); + clear_bit(ICE_CORER_REQ, pf->state); + clear_bit(ICE_GLOBR_REQ, pf->state); + wake_up(&pf->reset_wait_queue); + return; + } + + /* PFR is a bit of a special case because it doesn't result in an OICR + * interrupt. So for PFR, rebuild after the reset and clear the reset- + * associated state bits. + */ + if (reset_type == ICE_RESET_PFR) { + pf->pfr_count++; + ice_rebuild(pf, reset_type); + clear_bit(ICE_PREPARED_FOR_RESET, pf->state); + clear_bit(ICE_PFR_REQ, pf->state); + wake_up(&pf->reset_wait_queue); + ice_reset_all_vfs(pf); + } +} + +/** + * ice_reset_subtask - Set up for resetting the device and driver + * @pf: board private structure + */ +static void ice_reset_subtask(struct ice_pf *pf) +{ + enum ice_reset_req reset_type = ICE_RESET_INVAL; + + /* When a CORER/GLOBR/EMPR is about to happen, the hardware triggers an + * OICR interrupt. The OICR handler (ice_misc_intr) determines what type + * of reset is pending and sets bits in pf->state indicating the reset + * type and ICE_RESET_OICR_RECV. So, if the latter bit is set + * prepare for pending reset if not already (for PF software-initiated + * global resets the software should already be prepared for it as + * indicated by ICE_PREPARED_FOR_RESET; for global resets initiated + * by firmware or software on other PFs, that bit is not set so prepare + * for the reset now), poll for reset done, rebuild and return. + */ + if (test_bit(ICE_RESET_OICR_RECV, pf->state)) { + /* Perform the largest reset requested */ + if (test_and_clear_bit(ICE_CORER_RECV, pf->state)) + reset_type = ICE_RESET_CORER; + if (test_and_clear_bit(ICE_GLOBR_RECV, pf->state)) + reset_type = ICE_RESET_GLOBR; + if (test_and_clear_bit(ICE_EMPR_RECV, pf->state)) + reset_type = ICE_RESET_EMPR; + /* return if no valid reset type requested */ + if (reset_type == ICE_RESET_INVAL) + return; + ice_prepare_for_reset(pf, reset_type); + + /* make sure we are ready to rebuild */ + if (ice_check_reset(&pf->hw)) { + set_bit(ICE_RESET_FAILED, pf->state); + } else { + /* done with reset. start rebuild */ + pf->hw.reset_ongoing = false; + ice_rebuild(pf, reset_type); + /* clear bit to resume normal operations, but + * ICE_NEEDS_RESTART bit is set in case rebuild failed + */ + clear_bit(ICE_RESET_OICR_RECV, pf->state); + clear_bit(ICE_PREPARED_FOR_RESET, pf->state); + clear_bit(ICE_PFR_REQ, pf->state); + clear_bit(ICE_CORER_REQ, pf->state); + clear_bit(ICE_GLOBR_REQ, pf->state); + wake_up(&pf->reset_wait_queue); + ice_reset_all_vfs(pf); + } + + return; + } + + /* No pending resets to finish processing. Check for new resets */ + if (test_bit(ICE_PFR_REQ, pf->state)) + reset_type = ICE_RESET_PFR; + if (test_bit(ICE_CORER_REQ, pf->state)) + reset_type = ICE_RESET_CORER; + if (test_bit(ICE_GLOBR_REQ, pf->state)) + reset_type = ICE_RESET_GLOBR; + /* If no valid reset type requested just return */ + if (reset_type == ICE_RESET_INVAL) + return; + + /* reset if not already down or busy */ + if (!test_bit(ICE_DOWN, pf->state) && + !test_bit(ICE_CFG_BUSY, pf->state)) { + ice_do_reset(pf, reset_type); + } +} + +/** + * ice_print_topo_conflict - print topology conflict message + * @vsi: the VSI whose topology status is being checked + */ +static void ice_print_topo_conflict(struct ice_vsi *vsi) +{ + switch (vsi->port_info->phy.link_info.topo_media_conflict) { + case ICE_AQ_LINK_TOPO_CONFLICT: + case ICE_AQ_LINK_MEDIA_CONFLICT: + case ICE_AQ_LINK_TOPO_UNREACH_PRT: + case ICE_AQ_LINK_TOPO_UNDRUTIL_PRT: + case ICE_AQ_LINK_TOPO_UNDRUTIL_MEDIA: + 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"); + break; + case ICE_AQ_LINK_TOPO_UNSUPP_MEDIA: + if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, vsi->back->flags)) + netdev_warn(vsi->netdev, "An unsupported module type was detected. Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules\n"); + else + netdev_err(vsi->netdev, "Rx/Tx is disabled on this device because an unsupported module type was detected. Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules.\n"); + break; + default: + break; + } +} + +/** + * ice_print_link_msg - print link up or down message + * @vsi: the VSI whose link status is being queried + * @isup: boolean for if the link is now up or down + */ +void ice_print_link_msg(struct ice_vsi *vsi, bool isup) +{ + struct ice_aqc_get_phy_caps_data *caps; + const char *an_advertised; + const char *fec_req; + const char *speed; + const char *fec; + const char *fc; + const char *an; + int status; + + if (!vsi) + return; + + if (vsi->current_isup == isup) + return; + + vsi->current_isup = isup; + + if (!isup) { + netdev_info(vsi->netdev, "NIC Link is Down\n"); + return; + } + + switch (vsi->port_info->phy.link_info.link_speed) { + case ICE_AQ_LINK_SPEED_100GB: + speed = "100 G"; + break; + case ICE_AQ_LINK_SPEED_50GB: + speed = "50 G"; + break; + case ICE_AQ_LINK_SPEED_40GB: + speed = "40 G"; + break; + case ICE_AQ_LINK_SPEED_25GB: + speed = "25 G"; + break; + case ICE_AQ_LINK_SPEED_20GB: + speed = "20 G"; + break; + case ICE_AQ_LINK_SPEED_10GB: + speed = "10 G"; + break; + case ICE_AQ_LINK_SPEED_5GB: + speed = "5 G"; + break; + case ICE_AQ_LINK_SPEED_2500MB: + speed = "2.5 G"; + break; + case ICE_AQ_LINK_SPEED_1000MB: + speed = "1 G"; + break; + case ICE_AQ_LINK_SPEED_100MB: + speed = "100 M"; + break; + default: + speed = "Unknown "; + break; + } + + switch (vsi->port_info->fc.current_mode) { + case ICE_FC_FULL: + fc = "Rx/Tx"; + break; + case ICE_FC_TX_PAUSE: + fc = "Tx"; + break; + case ICE_FC_RX_PAUSE: + fc = "Rx"; + break; + case ICE_FC_NONE: + fc = "None"; + break; + default: + fc = "Unknown"; + break; + } + + /* Get FEC mode based on negotiated link info */ + switch (vsi->port_info->phy.link_info.fec_info) { + case ICE_AQ_LINK_25G_RS_528_FEC_EN: + case ICE_AQ_LINK_25G_RS_544_FEC_EN: + fec = "RS-FEC"; + break; + case ICE_AQ_LINK_25G_KR_FEC_EN: + fec = "FC-FEC/BASE-R"; + break; + default: + fec = "NONE"; + break; + } + + /* check if autoneg completed, might be false due to not supported */ + if (vsi->port_info->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) + an = "True"; + else + an = "False"; + + /* Get FEC mode requested based on PHY caps last SW configuration */ + caps = kzalloc(sizeof(*caps), GFP_KERNEL); + if (!caps) { + fec_req = "Unknown"; + an_advertised = "Unknown"; + goto done; + } + + status = ice_aq_get_phy_caps(vsi->port_info, false, + ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL); + if (status) + netdev_info(vsi->netdev, "Get phy capability failed.\n"); + + an_advertised = ice_is_phy_caps_an_enabled(caps) ? "On" : "Off"; + + if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || + caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ) + fec_req = "RS-FEC"; + else if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || + caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) + fec_req = "FC-FEC/BASE-R"; + else + fec_req = "NONE"; + + kfree(caps); + +done: + 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", + speed, fec_req, fec, an_advertised, an, fc); + ice_print_topo_conflict(vsi); +} + +/** + * ice_vsi_link_event - update the VSI's netdev + * @vsi: the VSI on which the link event occurred + * @link_up: whether or not the VSI needs to be set up or down + */ +static void ice_vsi_link_event(struct ice_vsi *vsi, bool link_up) +{ + if (!vsi) + return; + + if (test_bit(ICE_VSI_DOWN, vsi->state) || !vsi->netdev) + return; + + if (vsi->type == ICE_VSI_PF) { + if (link_up == netif_carrier_ok(vsi->netdev)) + return; + + if (link_up) { + netif_carrier_on(vsi->netdev); + netif_tx_wake_all_queues(vsi->netdev); + } else { + netif_carrier_off(vsi->netdev); + netif_tx_stop_all_queues(vsi->netdev); + } + } +} + +/** + * ice_set_dflt_mib - send a default config MIB to the FW + * @pf: private PF struct + * + * This function sends a default configuration MIB to the FW. + * + * If this function errors out at any point, the driver is still able to + * function. The main impact is that LFC may not operate as expected. + * Therefore an error state in this function should be treated with a DBG + * message and continue on with driver rebuild/reenable. + */ +static void ice_set_dflt_mib(struct ice_pf *pf) +{ + struct device *dev = ice_pf_to_dev(pf); + u8 mib_type, *buf, *lldpmib = NULL; + u16 len, typelen, offset = 0; + struct ice_lldp_org_tlv *tlv; + struct ice_hw *hw = &pf->hw; + u32 ouisubtype; + + mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB; + lldpmib = kzalloc(ICE_LLDPDU_SIZE, GFP_KERNEL); + if (!lldpmib) { + dev_dbg(dev, "%s Failed to allocate MIB memory\n", + __func__); + return; + } + + /* Add ETS CFG TLV */ + tlv = (struct ice_lldp_org_tlv *)lldpmib; + typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | + ICE_IEEE_ETS_TLV_LEN); + tlv->typelen = htons(typelen); + ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | + ICE_IEEE_SUBTYPE_ETS_CFG); + tlv->ouisubtype = htonl(ouisubtype); + + buf = tlv->tlvinfo; + buf[0] = 0; + + /* ETS CFG all UPs map to TC 0. Next 4 (1 - 4) Octets = 0. + * Octets 5 - 12 are BW values, set octet 5 to 100% BW. + * Octets 13 - 20 are TSA values - leave as zeros + */ + buf[5] = 0x64; + len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S; + offset += len + 2; + tlv = (struct ice_lldp_org_tlv *) + ((char *)tlv + sizeof(tlv->typelen) + len); + + /* Add ETS REC TLV */ + buf = tlv->tlvinfo; + tlv->typelen = htons(typelen); + + ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | + ICE_IEEE_SUBTYPE_ETS_REC); + tlv->ouisubtype = htonl(ouisubtype); + + /* First octet of buf is reserved + * Octets 1 - 4 map UP to TC - all UPs map to zero + * Octets 5 - 12 are BW values - set TC 0 to 100%. + * Octets 13 - 20 are TSA value - leave as zeros + */ + buf[5] = 0x64; + offset += len + 2; + tlv = (struct ice_lldp_org_tlv *) + ((char *)tlv + sizeof(tlv->typelen) + len); + + /* Add PFC CFG TLV */ + typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | + ICE_IEEE_PFC_TLV_LEN); + tlv->typelen = htons(typelen); + + ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | + ICE_IEEE_SUBTYPE_PFC_CFG); + tlv->ouisubtype = htonl(ouisubtype); + + /* Octet 1 left as all zeros - PFC disabled */ + buf[0] = 0x08; + len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S; + offset += len + 2; + + if (ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, offset, NULL)) + dev_dbg(dev, "%s Failed to set default LLDP MIB\n", __func__); + + kfree(lldpmib); +} + +/** + * ice_check_phy_fw_load - check if PHY FW load failed + * @pf: pointer to PF struct + * @link_cfg_err: bitmap from the link info structure + * + * check if external PHY FW load failed and print an error message if it did + */ +static void ice_check_phy_fw_load(struct ice_pf *pf, u8 link_cfg_err) +{ + if (!(link_cfg_err & ICE_AQ_LINK_EXTERNAL_PHY_LOAD_FAILURE)) { + clear_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags); + return; + } + + if (test_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags)) + return; + + if (link_cfg_err & ICE_AQ_LINK_EXTERNAL_PHY_LOAD_FAILURE) { + dev_err(ice_pf_to_dev(pf), "Device failed to load the FW for the external PHY. Please download and install the latest NVM for your device and try again\n"); + set_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags); + } +} + +/** + * ice_check_module_power + * @pf: pointer to PF struct + * @link_cfg_err: bitmap from the link info structure + * + * check module power level returned by a previous call to aq_get_link_info + * and print error messages if module power level is not supported + */ +static void ice_check_module_power(struct ice_pf *pf, u8 link_cfg_err) +{ + /* if module power level is supported, clear the flag */ + if (!(link_cfg_err & (ICE_AQ_LINK_INVAL_MAX_POWER_LIMIT | + ICE_AQ_LINK_MODULE_POWER_UNSUPPORTED))) { + clear_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags); + return; + } + + /* if ICE_FLAG_MOD_POWER_UNSUPPORTED was previously set and the + * above block didn't clear this bit, there's nothing to do + */ + if (test_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags)) + return; + + if (link_cfg_err & ICE_AQ_LINK_INVAL_MAX_POWER_LIMIT) { + dev_err(ice_pf_to_dev(pf), "The installed module is incompatible with the device's NVM image. Cannot start link\n"); + set_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags); + } else if (link_cfg_err & ICE_AQ_LINK_MODULE_POWER_UNSUPPORTED) { + dev_err(ice_pf_to_dev(pf), "The module's power requirements exceed the device's power supply. Cannot start link\n"); + set_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags); + } +} + +/** + * ice_check_link_cfg_err - check if link configuration failed + * @pf: pointer to the PF struct + * @link_cfg_err: bitmap from the link info structure + * + * print if any link configuration failure happens due to the value in the + * link_cfg_err parameter in the link info structure + */ +static void ice_check_link_cfg_err(struct ice_pf *pf, u8 link_cfg_err) +{ + ice_check_module_power(pf, link_cfg_err); + ice_check_phy_fw_load(pf, link_cfg_err); +} + +/** + * ice_link_event - process the link event + * @pf: PF that the link event is associated with + * @pi: port_info for the port that the link event is associated with + * @link_up: true if the physical link is up and false if it is down + * @link_speed: current link speed received from the link event + * + * Returns 0 on success and negative on failure + */ +static int +ice_link_event(struct ice_pf *pf, struct ice_port_info *pi, bool link_up, + u16 link_speed) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_phy_info *phy_info; + struct ice_vsi *vsi; + u16 old_link_speed; + bool old_link; + int status; + + phy_info = &pi->phy; + phy_info->link_info_old = phy_info->link_info; + + old_link = !!(phy_info->link_info_old.link_info & ICE_AQ_LINK_UP); + old_link_speed = phy_info->link_info_old.link_speed; + + /* update the link info structures and re-enable link events, + * don't bail on failure due to other book keeping needed + */ + status = ice_update_link_info(pi); + if (status) + dev_dbg(dev, "Failed to update link status on port %d, err %d aq_err %s\n", + pi->lport, status, + ice_aq_str(pi->hw->adminq.sq_last_status)); + + ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err); + + /* Check if the link state is up after updating link info, and treat + * this event as an UP event since the link is actually UP now. + */ + if (phy_info->link_info.link_info & ICE_AQ_LINK_UP) + link_up = true; + + vsi = ice_get_main_vsi(pf); + if (!vsi || !vsi->port_info) + return -EINVAL; + + /* turn off PHY if media was removed */ + if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags) && + !(pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE)) { + set_bit(ICE_FLAG_NO_MEDIA, pf->flags); + ice_set_link(vsi, false); + } + + /* if the old link up/down and speed is the same as the new */ + if (link_up == old_link && link_speed == old_link_speed) + return 0; + + if (!ice_is_e810(&pf->hw)) + ice_ptp_link_change(pf, pf->hw.pf_id, link_up); + + if (ice_is_dcb_active(pf)) { + if (test_bit(ICE_FLAG_DCB_ENA, pf->flags)) + ice_dcb_rebuild(pf); + } else { + if (link_up) + ice_set_dflt_mib(pf); + } + ice_vsi_link_event(vsi, link_up); + ice_print_link_msg(vsi, link_up); + + ice_vc_notify_link_state(pf); + + return 0; +} + +/** + * ice_watchdog_subtask - periodic tasks not using event driven scheduling + * @pf: board private structure + */ +static void ice_watchdog_subtask(struct ice_pf *pf) +{ + int i; + + /* if interface is down do nothing */ + if (test_bit(ICE_DOWN, pf->state) || + test_bit(ICE_CFG_BUSY, pf->state)) + return; + + /* make sure we don't do these things too often */ + if (time_before(jiffies, + pf->serv_tmr_prev + pf->serv_tmr_period)) + return; + + pf->serv_tmr_prev = jiffies; + + /* Update the stats for active netdevs so the network stack + * can look at updated numbers whenever it cares to + */ + ice_update_pf_stats(pf); + ice_for_each_vsi(pf, i) + if (pf->vsi[i] && pf->vsi[i]->netdev) + ice_update_vsi_stats(pf->vsi[i]); +} + +/** + * ice_init_link_events - enable/initialize link events + * @pi: pointer to the port_info instance + * + * Returns -EIO on failure, 0 on success + */ +static int ice_init_link_events(struct ice_port_info *pi) +{ + u16 mask; + + mask = ~((u16)(ICE_AQ_LINK_EVENT_UPDOWN | ICE_AQ_LINK_EVENT_MEDIA_NA | + ICE_AQ_LINK_EVENT_MODULE_QUAL_FAIL | + ICE_AQ_LINK_EVENT_PHY_FW_LOAD_FAIL)); + + if (ice_aq_set_event_mask(pi->hw, pi->lport, mask, NULL)) { + dev_dbg(ice_hw_to_dev(pi->hw), "Failed to set link event mask for port %d\n", + pi->lport); + return -EIO; + } + + if (ice_aq_get_link_info(pi, true, NULL, NULL)) { + dev_dbg(ice_hw_to_dev(pi->hw), "Failed to enable link events for port %d\n", + pi->lport); + return -EIO; + } + + return 0; +} + +/** + * ice_handle_link_event - handle link event via ARQ + * @pf: PF that the link event is associated with + * @event: event structure containing link status info + */ +static int +ice_handle_link_event(struct ice_pf *pf, struct ice_rq_event_info *event) +{ + struct ice_aqc_get_link_status_data *link_data; + struct ice_port_info *port_info; + int status; + + link_data = (struct ice_aqc_get_link_status_data *)event->msg_buf; + port_info = pf->hw.port_info; + if (!port_info) + return -EINVAL; + + status = ice_link_event(pf, port_info, + !!(link_data->link_info & ICE_AQ_LINK_UP), + le16_to_cpu(link_data->link_speed)); + if (status) + dev_dbg(ice_pf_to_dev(pf), "Could not process link event, error %d\n", + status); + + return status; +} + +enum ice_aq_task_state { + ICE_AQ_TASK_WAITING = 0, + ICE_AQ_TASK_COMPLETE, + ICE_AQ_TASK_CANCELED, +}; + +struct ice_aq_task { + struct hlist_node entry; + + u16 opcode; + struct ice_rq_event_info *event; + enum ice_aq_task_state state; +}; + +/** + * ice_aq_wait_for_event - Wait for an AdminQ event from firmware + * @pf: pointer to the PF private structure + * @opcode: the opcode to wait for + * @timeout: how long to wait, in jiffies + * @event: storage for the event info + * + * Waits for a specific AdminQ completion event on the ARQ for a given PF. The + * current thread will be put to sleep until the specified event occurs or + * until the given timeout is reached. + * + * To obtain only the descriptor contents, pass an event without an allocated + * msg_buf. If the complete data buffer is desired, allocate the + * event->msg_buf with enough space ahead of time. + * + * Returns: zero on success, or a negative error code on failure. + */ +int ice_aq_wait_for_event(struct ice_pf *pf, u16 opcode, unsigned long timeout, + struct ice_rq_event_info *event) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_aq_task *task; + unsigned long start; + long ret; + int err; + + task = kzalloc(sizeof(*task), GFP_KERNEL); + if (!task) + return -ENOMEM; + + INIT_HLIST_NODE(&task->entry); + task->opcode = opcode; + task->event = event; + task->state = ICE_AQ_TASK_WAITING; + + spin_lock_bh(&pf->aq_wait_lock); + hlist_add_head(&task->entry, &pf->aq_wait_list); + spin_unlock_bh(&pf->aq_wait_lock); + + start = jiffies; + + ret = wait_event_interruptible_timeout(pf->aq_wait_queue, task->state, + timeout); + switch (task->state) { + case ICE_AQ_TASK_WAITING: + err = ret < 0 ? ret : -ETIMEDOUT; + break; + case ICE_AQ_TASK_CANCELED: + err = ret < 0 ? ret : -ECANCELED; + break; + case ICE_AQ_TASK_COMPLETE: + err = ret < 0 ? ret : 0; + break; + default: + WARN(1, "Unexpected AdminQ wait task state %u", task->state); + err = -EINVAL; + break; + } + + dev_dbg(dev, "Waited %u msecs (max %u msecs) for firmware response to op 0x%04x\n", + jiffies_to_msecs(jiffies - start), + jiffies_to_msecs(timeout), + opcode); + + spin_lock_bh(&pf->aq_wait_lock); + hlist_del(&task->entry); + spin_unlock_bh(&pf->aq_wait_lock); + kfree(task); + + return err; +} + +/** + * ice_aq_check_events - Check if any thread is waiting for an AdminQ event + * @pf: pointer to the PF private structure + * @opcode: the opcode of the event + * @event: the event to check + * + * Loops over the current list of pending threads waiting for an AdminQ event. + * For each matching task, copy the contents of the event into the task + * structure and wake up the thread. + * + * If multiple threads wait for the same opcode, they will all be woken up. + * + * Note that event->msg_buf will only be duplicated if the event has a buffer + * with enough space already allocated. Otherwise, only the descriptor and + * message length will be copied. + * + * Returns: true if an event was found, false otherwise + */ +static void ice_aq_check_events(struct ice_pf *pf, u16 opcode, + struct ice_rq_event_info *event) +{ + struct ice_rq_event_info *task_ev; + struct ice_aq_task *task; + bool found = false; + + spin_lock_bh(&pf->aq_wait_lock); + hlist_for_each_entry(task, &pf->aq_wait_list, entry) { + if (task->state || task->opcode != opcode) + continue; + + task_ev = task->event; + memcpy(&task_ev->desc, &event->desc, sizeof(event->desc)); + task_ev->msg_len = event->msg_len; + + /* Only copy the data buffer if a destination was set */ + if (task_ev->msg_buf && task_ev->buf_len >= event->buf_len) { + memcpy(task_ev->msg_buf, event->msg_buf, + event->buf_len); + task_ev->buf_len = event->buf_len; + } + + task->state = ICE_AQ_TASK_COMPLETE; + found = true; + } + spin_unlock_bh(&pf->aq_wait_lock); + + if (found) + wake_up(&pf->aq_wait_queue); +} + +/** + * ice_aq_cancel_waiting_tasks - Immediately cancel all waiting tasks + * @pf: the PF private structure + * + * Set all waiting tasks to ICE_AQ_TASK_CANCELED, and wake up their threads. + * This will then cause ice_aq_wait_for_event to exit with -ECANCELED. + */ +static void ice_aq_cancel_waiting_tasks(struct ice_pf *pf) +{ + struct ice_aq_task *task; + + spin_lock_bh(&pf->aq_wait_lock); + hlist_for_each_entry(task, &pf->aq_wait_list, entry) + task->state = ICE_AQ_TASK_CANCELED; + spin_unlock_bh(&pf->aq_wait_lock); + + wake_up(&pf->aq_wait_queue); +} + +/** + * __ice_clean_ctrlq - helper function to clean controlq rings + * @pf: ptr to struct ice_pf + * @q_type: specific Control queue type + */ +static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_rq_event_info event; + struct ice_hw *hw = &pf->hw; + struct ice_ctl_q_info *cq; + u16 pending, i = 0; + const char *qtype; + u32 oldval, val; + + /* Do not clean control queue if/when PF reset fails */ + if (test_bit(ICE_RESET_FAILED, pf->state)) + return 0; + + switch (q_type) { + case ICE_CTL_Q_ADMIN: + cq = &hw->adminq; + qtype = "Admin"; + break; + case ICE_CTL_Q_SB: + cq = &hw->sbq; + qtype = "Sideband"; + break; + case ICE_CTL_Q_MAILBOX: + cq = &hw->mailboxq; + qtype = "Mailbox"; + /* we are going to try to detect a malicious VF, so set the + * state to begin detection + */ + hw->mbx_snapshot.mbx_buf.state = ICE_MAL_VF_DETECT_STATE_NEW_SNAPSHOT; + break; + default: + dev_warn(dev, "Unknown control queue type 0x%x\n", q_type); + return 0; + } + + /* check for error indications - PF_xx_AxQLEN register layout for + * FW/MBX/SB are identical so just use defines for PF_FW_AxQLEN. + */ + val = rd32(hw, cq->rq.len); + if (val & (PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M | + PF_FW_ARQLEN_ARQCRIT_M)) { + oldval = val; + if (val & PF_FW_ARQLEN_ARQVFE_M) + dev_dbg(dev, "%s Receive Queue VF Error detected\n", + qtype); + if (val & PF_FW_ARQLEN_ARQOVFL_M) { + dev_dbg(dev, "%s Receive Queue Overflow Error detected\n", + qtype); + } + if (val & PF_FW_ARQLEN_ARQCRIT_M) + dev_dbg(dev, "%s Receive Queue Critical Error detected\n", + qtype); + val &= ~(PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M | + PF_FW_ARQLEN_ARQCRIT_M); + if (oldval != val) + wr32(hw, cq->rq.len, val); + } + + val = rd32(hw, cq->sq.len); + if (val & (PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M | + PF_FW_ATQLEN_ATQCRIT_M)) { + oldval = val; + if (val & PF_FW_ATQLEN_ATQVFE_M) + dev_dbg(dev, "%s Send Queue VF Error detected\n", + qtype); + if (val & PF_FW_ATQLEN_ATQOVFL_M) { + dev_dbg(dev, "%s Send Queue Overflow Error detected\n", + qtype); + } + if (val & PF_FW_ATQLEN_ATQCRIT_M) + dev_dbg(dev, "%s Send Queue Critical Error detected\n", + qtype); + val &= ~(PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M | + PF_FW_ATQLEN_ATQCRIT_M); + if (oldval != val) + wr32(hw, cq->sq.len, val); + } + + event.buf_len = cq->rq_buf_size; + event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL); + if (!event.msg_buf) + return 0; + + do { + u16 opcode; + int ret; + + ret = ice_clean_rq_elem(hw, cq, &event, &pending); + if (ret == -EALREADY) + break; + if (ret) { + dev_err(dev, "%s Receive Queue event error %d\n", qtype, + ret); + break; + } + + opcode = le16_to_cpu(event.desc.opcode); + + /* Notify any thread that might be waiting for this event */ + ice_aq_check_events(pf, opcode, &event); + + switch (opcode) { + case ice_aqc_opc_get_link_status: + if (ice_handle_link_event(pf, &event)) + dev_err(dev, "Could not handle link event\n"); + break; + case ice_aqc_opc_event_lan_overflow: + ice_vf_lan_overflow_event(pf, &event); + break; + case ice_mbx_opc_send_msg_to_pf: + if (!ice_is_malicious_vf(pf, &event, i, pending)) + ice_vc_process_vf_msg(pf, &event); + break; + case ice_aqc_opc_fw_logging: + ice_output_fw_log(hw, &event.desc, event.msg_buf); + break; + case ice_aqc_opc_lldp_set_mib_change: + ice_dcb_process_lldp_set_mib_change(pf, &event); + break; + default: + dev_dbg(dev, "%s Receive Queue unknown event 0x%04x ignored\n", + qtype, opcode); + break; + } + } while (pending && (i++ < ICE_DFLT_IRQ_WORK)); + + kfree(event.msg_buf); + + return pending && (i == ICE_DFLT_IRQ_WORK); +} + +/** + * ice_ctrlq_pending - check if there is a difference between ntc and ntu + * @hw: pointer to hardware info + * @cq: control queue information + * + * returns true if there are pending messages in a queue, false if there aren't + */ +static bool ice_ctrlq_pending(struct ice_hw *hw, struct ice_ctl_q_info *cq) +{ + u16 ntu; + + ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask); + return cq->rq.next_to_clean != ntu; +} + +/** + * ice_clean_adminq_subtask - clean the AdminQ rings + * @pf: board private structure + */ +static void ice_clean_adminq_subtask(struct ice_pf *pf) +{ + struct ice_hw *hw = &pf->hw; + + if (!test_bit(ICE_ADMINQ_EVENT_PENDING, pf->state)) + return; + + if (__ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN)) + return; + + clear_bit(ICE_ADMINQ_EVENT_PENDING, pf->state); + + /* There might be a situation where new messages arrive to a control + * queue between processing the last message and clearing the + * EVENT_PENDING bit. So before exiting, check queue head again (using + * ice_ctrlq_pending) and process new messages if any. + */ + if (ice_ctrlq_pending(hw, &hw->adminq)) + __ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN); + + ice_flush(hw); +} + +/** + * ice_clean_mailboxq_subtask - clean the MailboxQ rings + * @pf: board private structure + */ +static void ice_clean_mailboxq_subtask(struct ice_pf *pf) +{ + struct ice_hw *hw = &pf->hw; + + if (!test_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state)) + return; + + if (__ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX)) + return; + + clear_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state); + + if (ice_ctrlq_pending(hw, &hw->mailboxq)) + __ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX); + + ice_flush(hw); +} + +/** + * ice_clean_sbq_subtask - clean the Sideband Queue rings + * @pf: board private structure + */ +static void ice_clean_sbq_subtask(struct ice_pf *pf) +{ + struct ice_hw *hw = &pf->hw; + + /* Nothing to do here if sideband queue is not supported */ + if (!ice_is_sbq_supported(hw)) { + clear_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state); + return; + } + + if (!test_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state)) + return; + + if (__ice_clean_ctrlq(pf, ICE_CTL_Q_SB)) + return; + + clear_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state); + + if (ice_ctrlq_pending(hw, &hw->sbq)) + __ice_clean_ctrlq(pf, ICE_CTL_Q_SB); + + ice_flush(hw); +} + +/** + * ice_service_task_schedule - schedule the service task to wake up + * @pf: board private structure + * + * If not already scheduled, this puts the task into the work queue. + */ +void ice_service_task_schedule(struct ice_pf *pf) +{ + if (!test_bit(ICE_SERVICE_DIS, pf->state) && + !test_and_set_bit(ICE_SERVICE_SCHED, pf->state) && + !test_bit(ICE_NEEDS_RESTART, pf->state)) + queue_work(ice_wq, &pf->serv_task); +} + +/** + * ice_service_task_complete - finish up the service task + * @pf: board private structure + */ +static void ice_service_task_complete(struct ice_pf *pf) +{ + WARN_ON(!test_bit(ICE_SERVICE_SCHED, pf->state)); + + /* force memory (pf->state) to sync before next service task */ + smp_mb__before_atomic(); + clear_bit(ICE_SERVICE_SCHED, pf->state); +} + +/** + * ice_service_task_stop - stop service task and cancel works + * @pf: board private structure + * + * Return 0 if the ICE_SERVICE_DIS bit was not already set, + * 1 otherwise. + */ +static int ice_service_task_stop(struct ice_pf *pf) +{ + int ret; + + ret = test_and_set_bit(ICE_SERVICE_DIS, pf->state); + + if (pf->serv_tmr.function) + del_timer_sync(&pf->serv_tmr); + if (pf->serv_task.func) + cancel_work_sync(&pf->serv_task); + + clear_bit(ICE_SERVICE_SCHED, pf->state); + return ret; +} + +/** + * ice_service_task_restart - restart service task and schedule works + * @pf: board private structure + * + * This function is needed for suspend and resume works (e.g WoL scenario) + */ +static void ice_service_task_restart(struct ice_pf *pf) +{ + clear_bit(ICE_SERVICE_DIS, pf->state); + ice_service_task_schedule(pf); +} + +/** + * ice_service_timer - timer callback to schedule service task + * @t: pointer to timer_list + */ +static void ice_service_timer(struct timer_list *t) +{ + struct ice_pf *pf = from_timer(pf, t, serv_tmr); + + mod_timer(&pf->serv_tmr, round_jiffies(pf->serv_tmr_period + jiffies)); + ice_service_task_schedule(pf); +} + +/** + * ice_handle_mdd_event - handle malicious driver detect event + * @pf: pointer to the PF structure + * + * Called from service task. OICR interrupt handler indicates MDD event. + * VF MDD logging is guarded by net_ratelimit. Additional PF and VF log + * messages are wrapped by netif_msg_[rx|tx]_err. Since VF Rx MDD events + * disable the queue, the PF can be configured to reset the VF using ethtool + * private flag mdd-auto-reset-vf. + */ +static void ice_handle_mdd_event(struct ice_pf *pf) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_hw *hw = &pf->hw; + struct ice_vf *vf; + unsigned int bkt; + u32 reg; + + if (!test_and_clear_bit(ICE_MDD_EVENT_PENDING, pf->state)) { + /* Since the VF MDD event logging is rate limited, check if + * there are pending MDD events. + */ + ice_print_vfs_mdd_events(pf); + return; + } + + /* find what triggered an MDD event */ + reg = rd32(hw, GL_MDET_TX_PQM); + if (reg & GL_MDET_TX_PQM_VALID_M) { + u8 pf_num = (reg & GL_MDET_TX_PQM_PF_NUM_M) >> + GL_MDET_TX_PQM_PF_NUM_S; + u16 vf_num = (reg & GL_MDET_TX_PQM_VF_NUM_M) >> + GL_MDET_TX_PQM_VF_NUM_S; + u8 event = (reg & GL_MDET_TX_PQM_MAL_TYPE_M) >> + GL_MDET_TX_PQM_MAL_TYPE_S; + u16 queue = ((reg & GL_MDET_TX_PQM_QNUM_M) >> + GL_MDET_TX_PQM_QNUM_S); + + if (netif_msg_tx_err(pf)) + dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n", + event, queue, pf_num, vf_num); + wr32(hw, GL_MDET_TX_PQM, 0xffffffff); + } + + reg = rd32(hw, GL_MDET_TX_TCLAN); + if (reg & GL_MDET_TX_TCLAN_VALID_M) { + u8 pf_num = (reg & GL_MDET_TX_TCLAN_PF_NUM_M) >> + GL_MDET_TX_TCLAN_PF_NUM_S; + u16 vf_num = (reg & GL_MDET_TX_TCLAN_VF_NUM_M) >> + GL_MDET_TX_TCLAN_VF_NUM_S; + u8 event = (reg & GL_MDET_TX_TCLAN_MAL_TYPE_M) >> + GL_MDET_TX_TCLAN_MAL_TYPE_S; + u16 queue = ((reg & GL_MDET_TX_TCLAN_QNUM_M) >> + GL_MDET_TX_TCLAN_QNUM_S); + + if (netif_msg_tx_err(pf)) + dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n", + event, queue, pf_num, vf_num); + wr32(hw, GL_MDET_TX_TCLAN, 0xffffffff); + } + + reg = rd32(hw, GL_MDET_RX); + if (reg & GL_MDET_RX_VALID_M) { + u8 pf_num = (reg & GL_MDET_RX_PF_NUM_M) >> + GL_MDET_RX_PF_NUM_S; + u16 vf_num = (reg & GL_MDET_RX_VF_NUM_M) >> + GL_MDET_RX_VF_NUM_S; + u8 event = (reg & GL_MDET_RX_MAL_TYPE_M) >> + GL_MDET_RX_MAL_TYPE_S; + u16 queue = ((reg & GL_MDET_RX_QNUM_M) >> + GL_MDET_RX_QNUM_S); + + if (netif_msg_rx_err(pf)) + dev_info(dev, "Malicious Driver Detection event %d on RX queue %d PF# %d VF# %d\n", + event, queue, pf_num, vf_num); + wr32(hw, GL_MDET_RX, 0xffffffff); + } + + /* check to see if this PF caused an MDD event */ + reg = rd32(hw, PF_MDET_TX_PQM); + if (reg & PF_MDET_TX_PQM_VALID_M) { + wr32(hw, PF_MDET_TX_PQM, 0xFFFF); + if (netif_msg_tx_err(pf)) + dev_info(dev, "Malicious Driver Detection event TX_PQM detected on PF\n"); + } + + reg = rd32(hw, PF_MDET_TX_TCLAN); + if (reg & PF_MDET_TX_TCLAN_VALID_M) { + wr32(hw, PF_MDET_TX_TCLAN, 0xFFFF); + if (netif_msg_tx_err(pf)) + dev_info(dev, "Malicious Driver Detection event TX_TCLAN detected on PF\n"); + } + + reg = rd32(hw, PF_MDET_RX); + if (reg & PF_MDET_RX_VALID_M) { + wr32(hw, PF_MDET_RX, 0xFFFF); + if (netif_msg_rx_err(pf)) + dev_info(dev, "Malicious Driver Detection event RX detected on PF\n"); + } + + /* Check to see if one of the VFs caused an MDD event, and then + * increment counters and set print pending + */ + mutex_lock(&pf->vfs.table_lock); + ice_for_each_vf(pf, bkt, vf) { + reg = rd32(hw, VP_MDET_TX_PQM(vf->vf_id)); + if (reg & VP_MDET_TX_PQM_VALID_M) { + wr32(hw, VP_MDET_TX_PQM(vf->vf_id), 0xFFFF); + vf->mdd_tx_events.count++; + set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state); + if (netif_msg_tx_err(pf)) + dev_info(dev, "Malicious Driver Detection event TX_PQM detected on VF %d\n", + vf->vf_id); + } + + reg = rd32(hw, VP_MDET_TX_TCLAN(vf->vf_id)); + if (reg & VP_MDET_TX_TCLAN_VALID_M) { + wr32(hw, VP_MDET_TX_TCLAN(vf->vf_id), 0xFFFF); + vf->mdd_tx_events.count++; + set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state); + if (netif_msg_tx_err(pf)) + dev_info(dev, "Malicious Driver Detection event TX_TCLAN detected on VF %d\n", + vf->vf_id); + } + + reg = rd32(hw, VP_MDET_TX_TDPU(vf->vf_id)); + if (reg & VP_MDET_TX_TDPU_VALID_M) { + wr32(hw, VP_MDET_TX_TDPU(vf->vf_id), 0xFFFF); + vf->mdd_tx_events.count++; + set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state); + if (netif_msg_tx_err(pf)) + dev_info(dev, "Malicious Driver Detection event TX_TDPU detected on VF %d\n", + vf->vf_id); + } + + reg = rd32(hw, VP_MDET_RX(vf->vf_id)); + if (reg & VP_MDET_RX_VALID_M) { + wr32(hw, VP_MDET_RX(vf->vf_id), 0xFFFF); + vf->mdd_rx_events.count++; + set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state); + if (netif_msg_rx_err(pf)) + dev_info(dev, "Malicious Driver Detection event RX detected on VF %d\n", + vf->vf_id); + + /* Since the queue is disabled on VF Rx MDD events, the + * PF can be configured to reset the VF through ethtool + * private flag mdd-auto-reset-vf. + */ + if (test_bit(ICE_FLAG_MDD_AUTO_RESET_VF, pf->flags)) { + /* VF MDD event counters will be cleared by + * reset, so print the event prior to reset. + */ + ice_print_vf_rx_mdd_event(vf); + ice_reset_vf(vf, ICE_VF_RESET_LOCK); + } + } + } + mutex_unlock(&pf->vfs.table_lock); + + ice_print_vfs_mdd_events(pf); +} + +/** + * ice_force_phys_link_state - Force the physical link state + * @vsi: VSI to force the physical link state to up/down + * @link_up: true/false indicates to set the physical link to up/down + * + * Force the physical link state by getting the current PHY capabilities from + * hardware and setting the PHY config based on the determined capabilities. If + * link changes a link event will be triggered because both the Enable Automatic + * Link Update and LESM Enable bits are set when setting the PHY capabilities. + * + * Returns 0 on success, negative on failure + */ +static int ice_force_phys_link_state(struct ice_vsi *vsi, bool link_up) +{ + struct ice_aqc_get_phy_caps_data *pcaps; + struct ice_aqc_set_phy_cfg_data *cfg; + struct ice_port_info *pi; + struct device *dev; + int retcode; + + if (!vsi || !vsi->port_info || !vsi->back) + return -EINVAL; + if (vsi->type != ICE_VSI_PF) + return 0; + + dev = ice_pf_to_dev(vsi->back); + + pi = vsi->port_info; + + pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); + if (!pcaps) + return -ENOMEM; + + retcode = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps, + NULL); + if (retcode) { + dev_err(dev, "Failed to get phy capabilities, VSI %d error %d\n", + vsi->vsi_num, retcode); + retcode = -EIO; + goto out; + } + + /* No change in link */ + if (link_up == !!(pcaps->caps & ICE_AQC_PHY_EN_LINK) && + link_up == !!(pi->phy.link_info.link_info & ICE_AQ_LINK_UP)) + goto out; + + /* Use the current user PHY configuration. The current user PHY + * configuration is initialized during probe from PHY capabilities + * software mode, and updated on set PHY configuration. + */ + cfg = kmemdup(&pi->phy.curr_user_phy_cfg, sizeof(*cfg), GFP_KERNEL); + if (!cfg) { + retcode = -ENOMEM; + goto out; + } + + cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; + if (link_up) + cfg->caps |= ICE_AQ_PHY_ENA_LINK; + else + cfg->caps &= ~ICE_AQ_PHY_ENA_LINK; + + retcode = ice_aq_set_phy_cfg(&vsi->back->hw, pi, cfg, NULL); + if (retcode) { + dev_err(dev, "Failed to set phy config, VSI %d error %d\n", + vsi->vsi_num, retcode); + retcode = -EIO; + } + + kfree(cfg); +out: + kfree(pcaps); + return retcode; +} + +/** + * ice_init_nvm_phy_type - Initialize the NVM PHY type + * @pi: port info structure + * + * Initialize nvm_phy_type_[low|high] for link lenient mode support + */ +static int ice_init_nvm_phy_type(struct ice_port_info *pi) +{ + struct ice_aqc_get_phy_caps_data *pcaps; + struct ice_pf *pf = pi->hw->back; + int err; + + pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); + if (!pcaps) + return -ENOMEM; + + err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_NO_MEDIA, + pcaps, NULL); + + if (err) { + dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n"); + goto out; + } + + pf->nvm_phy_type_hi = pcaps->phy_type_high; + pf->nvm_phy_type_lo = pcaps->phy_type_low; + +out: + kfree(pcaps); + return err; +} + +/** + * ice_init_link_dflt_override - Initialize link default override + * @pi: port info structure + * + * Initialize link default override and PHY total port shutdown during probe + */ +static void ice_init_link_dflt_override(struct ice_port_info *pi) +{ + struct ice_link_default_override_tlv *ldo; + struct ice_pf *pf = pi->hw->back; + + ldo = &pf->link_dflt_override; + if (ice_get_link_default_override(ldo, pi)) + return; + + if (!(ldo->options & ICE_LINK_OVERRIDE_PORT_DIS)) + return; + + /* Enable Total Port Shutdown (override/replace link-down-on-close + * ethtool private flag) for ports with Port Disable bit set. + */ + set_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags); + set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags); +} + +/** + * ice_init_phy_cfg_dflt_override - Initialize PHY cfg default override settings + * @pi: port info structure + * + * If default override is enabled, initialize the user PHY cfg speed and FEC + * settings using the default override mask from the NVM. + * + * The PHY should only be configured with the default override settings the + * first time media is available. The ICE_LINK_DEFAULT_OVERRIDE_PENDING state + * is used to indicate that the user PHY cfg default override is initialized + * and the PHY has not been configured with the default override settings. The + * state is set here, and cleared in ice_configure_phy the first time the PHY is + * configured. + * + * This function should be called only if the FW doesn't support default + * configuration mode, as reported by ice_fw_supports_report_dflt_cfg. + */ +static void ice_init_phy_cfg_dflt_override(struct ice_port_info *pi) +{ + struct ice_link_default_override_tlv *ldo; + struct ice_aqc_set_phy_cfg_data *cfg; + struct ice_phy_info *phy = &pi->phy; + struct ice_pf *pf = pi->hw->back; + + ldo = &pf->link_dflt_override; + + /* If link default override is enabled, use to mask NVM PHY capabilities + * for speed and FEC default configuration. + */ + cfg = &phy->curr_user_phy_cfg; + + if (ldo->phy_type_low || ldo->phy_type_high) { + cfg->phy_type_low = pf->nvm_phy_type_lo & + cpu_to_le64(ldo->phy_type_low); + cfg->phy_type_high = pf->nvm_phy_type_hi & + cpu_to_le64(ldo->phy_type_high); + } + cfg->link_fec_opt = ldo->fec_options; + phy->curr_user_fec_req = ICE_FEC_AUTO; + + set_bit(ICE_LINK_DEFAULT_OVERRIDE_PENDING, pf->state); +} + +/** + * ice_init_phy_user_cfg - Initialize the PHY user configuration + * @pi: port info structure + * + * Initialize the current user PHY configuration, speed, FEC, and FC requested + * mode to default. The PHY defaults are from get PHY capabilities topology + * with media so call when media is first available. An error is returned if + * called when media is not available. The PHY initialization completed state is + * set here. + * + * These configurations are used when setting PHY + * configuration. The user PHY configuration is updated on set PHY + * configuration. Returns 0 on success, negative on failure + */ +static int ice_init_phy_user_cfg(struct ice_port_info *pi) +{ + struct ice_aqc_get_phy_caps_data *pcaps; + struct ice_phy_info *phy = &pi->phy; + struct ice_pf *pf = pi->hw->back; + int err; + + if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE)) + return -EIO; + + pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); + if (!pcaps) + return -ENOMEM; + + if (ice_fw_supports_report_dflt_cfg(pi->hw)) + err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG, + pcaps, NULL); + else + err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, + pcaps, NULL); + if (err) { + dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n"); + goto err_out; + } + + ice_copy_phy_caps_to_cfg(pi, pcaps, &pi->phy.curr_user_phy_cfg); + + /* check if lenient mode is supported and enabled */ + if (ice_fw_supports_link_override(pi->hw) && + !(pcaps->module_compliance_enforcement & + ICE_AQC_MOD_ENFORCE_STRICT_MODE)) { + set_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags); + + /* if the FW supports default PHY configuration mode, then the driver + * does not have to apply link override settings. If not, + * initialize user PHY configuration with link override values + */ + if (!ice_fw_supports_report_dflt_cfg(pi->hw) && + (pf->link_dflt_override.options & ICE_LINK_OVERRIDE_EN)) { + ice_init_phy_cfg_dflt_override(pi); + goto out; + } + } + + /* if link default override is not enabled, set user flow control and + * FEC settings based on what get_phy_caps returned + */ + phy->curr_user_fec_req = ice_caps_to_fec_mode(pcaps->caps, + pcaps->link_fec_options); + phy->curr_user_fc_req = ice_caps_to_fc_mode(pcaps->caps); + +out: + phy->curr_user_speed_req = ICE_AQ_LINK_SPEED_M; + set_bit(ICE_PHY_INIT_COMPLETE, pf->state); +err_out: + kfree(pcaps); + return err; +} + +/** + * ice_configure_phy - configure PHY + * @vsi: VSI of PHY + * + * Set the PHY configuration. If the current PHY configuration is the same as + * the curr_user_phy_cfg, then do nothing to avoid link flap. Otherwise + * configure the based get PHY capabilities for topology with media. + */ +static int ice_configure_phy(struct ice_vsi *vsi) +{ + struct device *dev = ice_pf_to_dev(vsi->back); + struct ice_port_info *pi = vsi->port_info; + struct ice_aqc_get_phy_caps_data *pcaps; + struct ice_aqc_set_phy_cfg_data *cfg; + struct ice_phy_info *phy = &pi->phy; + struct ice_pf *pf = vsi->back; + int err; + + /* Ensure we have media as we cannot configure a medialess port */ + if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE)) + return -ENOMEDIUM; + + ice_print_topo_conflict(vsi); + + if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags) && + phy->link_info.topo_media_conflict == ICE_AQ_LINK_TOPO_UNSUPP_MEDIA) + return -EPERM; + + if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags)) + return ice_force_phys_link_state(vsi, true); + + pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); + if (!pcaps) + return -ENOMEM; + + /* Get current PHY config */ + err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps, + NULL); + if (err) { + dev_err(dev, "Failed to get PHY configuration, VSI %d error %d\n", + vsi->vsi_num, err); + goto done; + } + + /* If PHY enable link is configured and configuration has not changed, + * there's nothing to do + */ + if (pcaps->caps & ICE_AQC_PHY_EN_LINK && + ice_phy_caps_equals_cfg(pcaps, &phy->curr_user_phy_cfg)) + goto done; + + /* Use PHY topology as baseline for configuration */ + memset(pcaps, 0, sizeof(*pcaps)); + if (ice_fw_supports_report_dflt_cfg(pi->hw)) + err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG, + pcaps, NULL); + else + err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, + pcaps, NULL); + if (err) { + dev_err(dev, "Failed to get PHY caps, VSI %d error %d\n", + vsi->vsi_num, err); + goto done; + } + + cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); + if (!cfg) { + err = -ENOMEM; + goto done; + } + + ice_copy_phy_caps_to_cfg(pi, pcaps, cfg); + + /* Speed - If default override pending, use curr_user_phy_cfg set in + * ice_init_phy_user_cfg_ldo. + */ + if (test_and_clear_bit(ICE_LINK_DEFAULT_OVERRIDE_PENDING, + vsi->back->state)) { + cfg->phy_type_low = phy->curr_user_phy_cfg.phy_type_low; + cfg->phy_type_high = phy->curr_user_phy_cfg.phy_type_high; + } else { + u64 phy_low = 0, phy_high = 0; + + ice_update_phy_type(&phy_low, &phy_high, + pi->phy.curr_user_speed_req); + cfg->phy_type_low = pcaps->phy_type_low & cpu_to_le64(phy_low); + cfg->phy_type_high = pcaps->phy_type_high & + cpu_to_le64(phy_high); + } + + /* Can't provide what was requested; use PHY capabilities */ + if (!cfg->phy_type_low && !cfg->phy_type_high) { + cfg->phy_type_low = pcaps->phy_type_low; + cfg->phy_type_high = pcaps->phy_type_high; + } + + /* FEC */ + ice_cfg_phy_fec(pi, cfg, phy->curr_user_fec_req); + + /* Can't provide what was requested; use PHY capabilities */ + if (cfg->link_fec_opt != + (cfg->link_fec_opt & pcaps->link_fec_options)) { + cfg->caps |= pcaps->caps & ICE_AQC_PHY_EN_AUTO_FEC; + cfg->link_fec_opt = pcaps->link_fec_options; + } + + /* Flow Control - always supported; no need to check against + * capabilities + */ + ice_cfg_phy_fc(pi, cfg, phy->curr_user_fc_req); + + /* Enable link and link update */ + cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT | ICE_AQ_PHY_ENA_LINK; + + err = ice_aq_set_phy_cfg(&pf->hw, pi, cfg, NULL); + if (err) + dev_err(dev, "Failed to set phy config, VSI %d error %d\n", + vsi->vsi_num, err); + + kfree(cfg); +done: + kfree(pcaps); + return err; +} + +/** + * ice_check_media_subtask - Check for media + * @pf: pointer to PF struct + * + * If media is available, then initialize PHY user configuration if it is not + * been, and configure the PHY if the interface is up. + */ +static void ice_check_media_subtask(struct ice_pf *pf) +{ + struct ice_port_info *pi; + struct ice_vsi *vsi; + int err; + + /* No need to check for media if it's already present */ + if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags)) + return; + + vsi = ice_get_main_vsi(pf); + if (!vsi) + return; + + /* Refresh link info and check if media is present */ + pi = vsi->port_info; + err = ice_update_link_info(pi); + if (err) + return; + + ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err); + + if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) { + if (!test_bit(ICE_PHY_INIT_COMPLETE, pf->state)) + ice_init_phy_user_cfg(pi); + + /* PHY settings are reset on media insertion, reconfigure + * PHY to preserve settings. + */ + if (test_bit(ICE_VSI_DOWN, vsi->state) && + test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags)) + return; + + err = ice_configure_phy(vsi); + if (!err) + clear_bit(ICE_FLAG_NO_MEDIA, pf->flags); + + /* A Link Status Event will be generated; the event handler + * will complete bringing the interface up + */ + } +} + +/** + * ice_service_task - manage and run subtasks + * @work: pointer to work_struct contained by the PF struct + */ +static void ice_service_task(struct work_struct *work) +{ + struct ice_pf *pf = container_of(work, struct ice_pf, serv_task); + unsigned long start_time = jiffies; + + /* subtasks */ + + /* process reset requests first */ + ice_reset_subtask(pf); + + /* bail if a reset/recovery cycle is pending or rebuild failed */ + if (ice_is_reset_in_progress(pf->state) || + test_bit(ICE_SUSPENDED, pf->state) || + test_bit(ICE_NEEDS_RESTART, pf->state)) { + ice_service_task_complete(pf); + return; + } + + if (test_and_clear_bit(ICE_AUX_ERR_PENDING, pf->state)) { + struct iidc_event *event; + + event = kzalloc(sizeof(*event), GFP_KERNEL); + if (event) { + set_bit(IIDC_EVENT_CRIT_ERR, event->type); + /* report the entire OICR value to AUX driver */ + swap(event->reg, pf->oicr_err_reg); + ice_send_event_to_aux(pf, event); + kfree(event); + } + } + + /* unplug aux dev per request, if an unplug request came in + * while processing a plug request, this will handle it + */ + if (test_and_clear_bit(ICE_FLAG_UNPLUG_AUX_DEV, pf->flags)) + ice_unplug_aux_dev(pf); + + /* Plug aux device per request */ + if (test_and_clear_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags)) + ice_plug_aux_dev(pf); + + if (test_and_clear_bit(ICE_FLAG_MTU_CHANGED, pf->flags)) { + struct iidc_event *event; + + event = kzalloc(sizeof(*event), GFP_KERNEL); + if (event) { + set_bit(IIDC_EVENT_AFTER_MTU_CHANGE, event->type); + ice_send_event_to_aux(pf, event); + kfree(event); + } + } + + ice_clean_adminq_subtask(pf); + ice_check_media_subtask(pf); + ice_check_for_hang_subtask(pf); + ice_sync_fltr_subtask(pf); + ice_handle_mdd_event(pf); + ice_watchdog_subtask(pf); + + if (ice_is_safe_mode(pf)) { + ice_service_task_complete(pf); + return; + } + + ice_process_vflr_event(pf); + ice_clean_mailboxq_subtask(pf); + ice_clean_sbq_subtask(pf); + ice_sync_arfs_fltrs(pf); + ice_flush_fdir_ctx(pf); + + /* Clear ICE_SERVICE_SCHED flag to allow scheduling next event */ + ice_service_task_complete(pf); + + /* If the tasks have taken longer than one service timer period + * or there is more work to be done, reset the service timer to + * schedule the service task now. + */ + if (time_after(jiffies, (start_time + pf->serv_tmr_period)) || + test_bit(ICE_MDD_EVENT_PENDING, pf->state) || + test_bit(ICE_VFLR_EVENT_PENDING, pf->state) || + test_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state) || + test_bit(ICE_FD_VF_FLUSH_CTX, pf->state) || + test_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state) || + test_bit(ICE_ADMINQ_EVENT_PENDING, pf->state)) + mod_timer(&pf->serv_tmr, jiffies); +} + +/** + * ice_set_ctrlq_len - helper function to set controlq length + * @hw: pointer to the HW instance + */ +static void ice_set_ctrlq_len(struct ice_hw *hw) +{ + hw->adminq.num_rq_entries = ICE_AQ_LEN; + hw->adminq.num_sq_entries = ICE_AQ_LEN; + hw->adminq.rq_buf_size = ICE_AQ_MAX_BUF_LEN; + hw->adminq.sq_buf_size = ICE_AQ_MAX_BUF_LEN; + hw->mailboxq.num_rq_entries = PF_MBX_ARQLEN_ARQLEN_M; + hw->mailboxq.num_sq_entries = ICE_MBXSQ_LEN; + hw->mailboxq.rq_buf_size = ICE_MBXQ_MAX_BUF_LEN; + hw->mailboxq.sq_buf_size = ICE_MBXQ_MAX_BUF_LEN; + hw->sbq.num_rq_entries = ICE_SBQ_LEN; + hw->sbq.num_sq_entries = ICE_SBQ_LEN; + hw->sbq.rq_buf_size = ICE_SBQ_MAX_BUF_LEN; + hw->sbq.sq_buf_size = ICE_SBQ_MAX_BUF_LEN; +} + +/** + * ice_schedule_reset - schedule a reset + * @pf: board private structure + * @reset: reset being requested + */ +int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset) +{ + struct device *dev = ice_pf_to_dev(pf); + + /* bail out if earlier reset has failed */ + if (test_bit(ICE_RESET_FAILED, pf->state)) { + dev_dbg(dev, "earlier reset has failed\n"); + return -EIO; + } + /* bail if reset/recovery already in progress */ + if (ice_is_reset_in_progress(pf->state)) { + dev_dbg(dev, "Reset already in progress\n"); + return -EBUSY; + } + + switch (reset) { + case ICE_RESET_PFR: + set_bit(ICE_PFR_REQ, pf->state); + break; + case ICE_RESET_CORER: + set_bit(ICE_CORER_REQ, pf->state); + break; + case ICE_RESET_GLOBR: + set_bit(ICE_GLOBR_REQ, pf->state); + break; + default: + return -EINVAL; + } + + ice_service_task_schedule(pf); + return 0; +} + +/** + * ice_irq_affinity_notify - Callback for affinity changes + * @notify: context as to what irq was changed + * @mask: the new affinity mask + * + * This is a callback function used by the irq_set_affinity_notifier function + * so that we may register to receive changes to the irq affinity masks. + */ +static void +ice_irq_affinity_notify(struct irq_affinity_notify *notify, + const cpumask_t *mask) +{ + struct ice_q_vector *q_vector = + container_of(notify, struct ice_q_vector, affinity_notify); + + cpumask_copy(&q_vector->affinity_mask, mask); +} + +/** + * ice_irq_affinity_release - Callback for affinity notifier release + * @ref: internal core kernel usage + * + * This is a callback function used by the irq_set_affinity_notifier function + * to inform the current notification subscriber that they will no longer + * receive notifications. + */ +static void ice_irq_affinity_release(struct kref __always_unused *ref) {} + +/** + * ice_vsi_ena_irq - Enable IRQ for the given VSI + * @vsi: the VSI being configured + */ +static int ice_vsi_ena_irq(struct ice_vsi *vsi) +{ + struct ice_hw *hw = &vsi->back->hw; + int i; + + ice_for_each_q_vector(vsi, i) + ice_irq_dynamic_ena(hw, vsi, vsi->q_vectors[i]); + + ice_flush(hw); + return 0; +} + +/** + * ice_vsi_req_irq_msix - get MSI-X vectors from the OS for the VSI + * @vsi: the VSI being configured + * @basename: name for the vector + */ +static int ice_vsi_req_irq_msix(struct ice_vsi *vsi, char *basename) +{ + int q_vectors = vsi->num_q_vectors; + struct ice_pf *pf = vsi->back; + int base = vsi->base_vector; + struct device *dev; + int rx_int_idx = 0; + int tx_int_idx = 0; + int vector, err; + int irq_num; + + dev = ice_pf_to_dev(pf); + for (vector = 0; vector < q_vectors; vector++) { + struct ice_q_vector *q_vector = vsi->q_vectors[vector]; + + irq_num = pf->msix_entries[base + vector].vector; + + if (q_vector->tx.tx_ring && q_vector->rx.rx_ring) { + snprintf(q_vector->name, sizeof(q_vector->name) - 1, + "%s-%s-%d", basename, "TxRx", rx_int_idx++); + tx_int_idx++; + } else if (q_vector->rx.rx_ring) { + snprintf(q_vector->name, sizeof(q_vector->name) - 1, + "%s-%s-%d", basename, "rx", rx_int_idx++); + } else if (q_vector->tx.tx_ring) { + snprintf(q_vector->name, sizeof(q_vector->name) - 1, + "%s-%s-%d", basename, "tx", tx_int_idx++); + } else { + /* skip this unused q_vector */ + continue; + } + if (vsi->type == ICE_VSI_CTRL && vsi->vf) + err = devm_request_irq(dev, irq_num, vsi->irq_handler, + IRQF_SHARED, q_vector->name, + q_vector); + else + err = devm_request_irq(dev, irq_num, vsi->irq_handler, + 0, q_vector->name, q_vector); + if (err) { + netdev_err(vsi->netdev, "MSIX request_irq failed, error: %d\n", + err); + goto free_q_irqs; + } + + /* register for affinity change notifications */ + if (!IS_ENABLED(CONFIG_RFS_ACCEL)) { + struct irq_affinity_notify *affinity_notify; + + affinity_notify = &q_vector->affinity_notify; + affinity_notify->notify = ice_irq_affinity_notify; + affinity_notify->release = ice_irq_affinity_release; + irq_set_affinity_notifier(irq_num, affinity_notify); + } + + /* assign the mask for this irq */ + irq_set_affinity_hint(irq_num, &q_vector->affinity_mask); + } + + err = ice_set_cpu_rx_rmap(vsi); + if (err) { + netdev_err(vsi->netdev, "Failed to setup CPU RMAP on VSI %u: %pe\n", + vsi->vsi_num, ERR_PTR(err)); + goto free_q_irqs; + } + + vsi->irqs_ready = true; + return 0; + +free_q_irqs: + while (vector) { + vector--; + irq_num = pf->msix_entries[base + vector].vector; + if (!IS_ENABLED(CONFIG_RFS_ACCEL)) + irq_set_affinity_notifier(irq_num, NULL); + irq_set_affinity_hint(irq_num, NULL); + devm_free_irq(dev, irq_num, &vsi->q_vectors[vector]); + } + return err; +} + +/** + * ice_xdp_alloc_setup_rings - Allocate and setup Tx rings for XDP + * @vsi: VSI to setup Tx rings used by XDP + * + * Return 0 on success and negative value on error + */ +static int ice_xdp_alloc_setup_rings(struct ice_vsi *vsi) +{ + struct device *dev = ice_pf_to_dev(vsi->back); + struct ice_tx_desc *tx_desc; + int i, j; + + ice_for_each_xdp_txq(vsi, i) { + u16 xdp_q_idx = vsi->alloc_txq + i; + struct ice_tx_ring *xdp_ring; + + xdp_ring = kzalloc(sizeof(*xdp_ring), GFP_KERNEL); + + if (!xdp_ring) + goto free_xdp_rings; + + xdp_ring->q_index = xdp_q_idx; + xdp_ring->reg_idx = vsi->txq_map[xdp_q_idx]; + xdp_ring->vsi = vsi; + xdp_ring->netdev = NULL; + xdp_ring->dev = dev; + xdp_ring->count = vsi->num_tx_desc; + xdp_ring->next_dd = ICE_RING_QUARTER(xdp_ring) - 1; + xdp_ring->next_rs = ICE_RING_QUARTER(xdp_ring) - 1; + WRITE_ONCE(vsi->xdp_rings[i], xdp_ring); + if (ice_setup_tx_ring(xdp_ring)) + goto free_xdp_rings; + ice_set_ring_xdp(xdp_ring); + spin_lock_init(&xdp_ring->tx_lock); + for (j = 0; j < xdp_ring->count; j++) { + tx_desc = ICE_TX_DESC(xdp_ring, j); + tx_desc->cmd_type_offset_bsz = 0; + } + } + + return 0; + +free_xdp_rings: + for (; i >= 0; i--) + if (vsi->xdp_rings[i] && vsi->xdp_rings[i]->desc) + ice_free_tx_ring(vsi->xdp_rings[i]); + return -ENOMEM; +} + +/** + * ice_vsi_assign_bpf_prog - set or clear bpf prog pointer on VSI + * @vsi: VSI to set the bpf prog on + * @prog: the bpf prog pointer + */ +static void ice_vsi_assign_bpf_prog(struct ice_vsi *vsi, struct bpf_prog *prog) +{ + struct bpf_prog *old_prog; + int i; + + old_prog = xchg(&vsi->xdp_prog, prog); + if (old_prog) + bpf_prog_put(old_prog); + + ice_for_each_rxq(vsi, i) + WRITE_ONCE(vsi->rx_rings[i]->xdp_prog, vsi->xdp_prog); +} + +/** + * ice_prepare_xdp_rings - Allocate, configure and setup Tx rings for XDP + * @vsi: VSI to bring up Tx rings used by XDP + * @prog: bpf program that will be assigned to VSI + * + * Return 0 on success and negative value on error + */ +int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog) +{ + u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; + int xdp_rings_rem = vsi->num_xdp_txq; + struct ice_pf *pf = vsi->back; + struct ice_qs_cfg xdp_qs_cfg = { + .qs_mutex = &pf->avail_q_mutex, + .pf_map = pf->avail_txqs, + .pf_map_size = pf->max_pf_txqs, + .q_count = vsi->num_xdp_txq, + .scatter_count = ICE_MAX_SCATTER_TXQS, + .vsi_map = vsi->txq_map, + .vsi_map_offset = vsi->alloc_txq, + .mapping_mode = ICE_VSI_MAP_CONTIG + }; + struct device *dev; + int i, v_idx; + int status; + + dev = ice_pf_to_dev(pf); + vsi->xdp_rings = devm_kcalloc(dev, vsi->num_xdp_txq, + sizeof(*vsi->xdp_rings), GFP_KERNEL); + if (!vsi->xdp_rings) + return -ENOMEM; + + vsi->xdp_mapping_mode = xdp_qs_cfg.mapping_mode; + if (__ice_vsi_get_qs(&xdp_qs_cfg)) + goto err_map_xdp; + + if (static_key_enabled(&ice_xdp_locking_key)) + netdev_warn(vsi->netdev, + "Could not allocate one XDP Tx ring per CPU, XDP_TX/XDP_REDIRECT actions will be slower\n"); + + if (ice_xdp_alloc_setup_rings(vsi)) + goto clear_xdp_rings; + + /* follow the logic from ice_vsi_map_rings_to_vectors */ + ice_for_each_q_vector(vsi, v_idx) { + struct ice_q_vector *q_vector = vsi->q_vectors[v_idx]; + int xdp_rings_per_v, q_id, q_base; + + xdp_rings_per_v = DIV_ROUND_UP(xdp_rings_rem, + vsi->num_q_vectors - v_idx); + q_base = vsi->num_xdp_txq - xdp_rings_rem; + + for (q_id = q_base; q_id < (q_base + xdp_rings_per_v); q_id++) { + struct ice_tx_ring *xdp_ring = vsi->xdp_rings[q_id]; + + xdp_ring->q_vector = q_vector; + xdp_ring->next = q_vector->tx.tx_ring; + q_vector->tx.tx_ring = xdp_ring; + } + xdp_rings_rem -= xdp_rings_per_v; + } + + ice_for_each_rxq(vsi, i) { + if (static_key_enabled(&ice_xdp_locking_key)) { + vsi->rx_rings[i]->xdp_ring = vsi->xdp_rings[i % vsi->num_xdp_txq]; + } else { + struct ice_q_vector *q_vector = vsi->rx_rings[i]->q_vector; + struct ice_tx_ring *ring; + + ice_for_each_tx_ring(ring, q_vector->tx) { + if (ice_ring_is_xdp(ring)) { + vsi->rx_rings[i]->xdp_ring = ring; + break; + } + } + } + ice_tx_xsk_pool(vsi, i); + } + + /* omit the scheduler update if in reset path; XDP queues will be + * taken into account at the end of ice_vsi_rebuild, where + * ice_cfg_vsi_lan is being called + */ + if (ice_is_reset_in_progress(pf->state)) + return 0; + + /* tell the Tx scheduler that right now we have + * additional queues + */ + for (i = 0; i < vsi->tc_cfg.numtc; i++) + max_txqs[i] = vsi->num_txq + vsi->num_xdp_txq; + + status = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, + max_txqs); + if (status) { + dev_err(dev, "Failed VSI LAN queue config for XDP, error: %d\n", + status); + goto clear_xdp_rings; + } + + /* assign the prog only when it's not already present on VSI; + * this flow is a subject of both ethtool -L and ndo_bpf flows; + * VSI rebuild that happens under ethtool -L can expose us to + * the bpf_prog refcount issues as we would be swapping same + * bpf_prog pointers from vsi->xdp_prog and calling bpf_prog_put + * on it as it would be treated as an 'old_prog'; for ndo_bpf + * this is not harmful as dev_xdp_install bumps the refcount + * before calling the op exposed by the driver; + */ + if (!ice_is_xdp_ena_vsi(vsi)) + ice_vsi_assign_bpf_prog(vsi, prog); + + return 0; +clear_xdp_rings: + ice_for_each_xdp_txq(vsi, i) + if (vsi->xdp_rings[i]) { + kfree_rcu(vsi->xdp_rings[i], rcu); + vsi->xdp_rings[i] = NULL; + } + +err_map_xdp: + mutex_lock(&pf->avail_q_mutex); + ice_for_each_xdp_txq(vsi, i) { + clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs); + vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX; + } + mutex_unlock(&pf->avail_q_mutex); + + devm_kfree(dev, vsi->xdp_rings); + return -ENOMEM; +} + +/** + * ice_destroy_xdp_rings - undo the configuration made by ice_prepare_xdp_rings + * @vsi: VSI to remove XDP rings + * + * Detach XDP rings from irq vectors, clean up the PF bitmap and free + * resources + */ +int ice_destroy_xdp_rings(struct ice_vsi *vsi) +{ + u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; + struct ice_pf *pf = vsi->back; + int i, v_idx; + + /* q_vectors are freed in reset path so there's no point in detaching + * rings; in case of rebuild being triggered not from reset bits + * in pf->state won't be set, so additionally check first q_vector + * against NULL + */ + if (ice_is_reset_in_progress(pf->state) || !vsi->q_vectors[0]) + goto free_qmap; + + ice_for_each_q_vector(vsi, v_idx) { + struct ice_q_vector *q_vector = vsi->q_vectors[v_idx]; + struct ice_tx_ring *ring; + + ice_for_each_tx_ring(ring, q_vector->tx) + if (!ring->tx_buf || !ice_ring_is_xdp(ring)) + break; + + /* restore the value of last node prior to XDP setup */ + q_vector->tx.tx_ring = ring; + } + +free_qmap: + mutex_lock(&pf->avail_q_mutex); + ice_for_each_xdp_txq(vsi, i) { + clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs); + vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX; + } + mutex_unlock(&pf->avail_q_mutex); + + ice_for_each_xdp_txq(vsi, i) + if (vsi->xdp_rings[i]) { + if (vsi->xdp_rings[i]->desc) { + synchronize_rcu(); + ice_free_tx_ring(vsi->xdp_rings[i]); + } + kfree_rcu(vsi->xdp_rings[i], rcu); + vsi->xdp_rings[i] = NULL; + } + + devm_kfree(ice_pf_to_dev(pf), vsi->xdp_rings); + vsi->xdp_rings = NULL; + + if (static_key_enabled(&ice_xdp_locking_key)) + static_branch_dec(&ice_xdp_locking_key); + + if (ice_is_reset_in_progress(pf->state) || !vsi->q_vectors[0]) + return 0; + + ice_vsi_assign_bpf_prog(vsi, NULL); + + /* notify Tx scheduler that we destroyed XDP queues and bring + * back the old number of child nodes + */ + for (i = 0; i < vsi->tc_cfg.numtc; i++) + max_txqs[i] = vsi->num_txq; + + /* change number of XDP Tx queues to 0 */ + vsi->num_xdp_txq = 0; + + return ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, + max_txqs); +} + +/** + * ice_vsi_rx_napi_schedule - Schedule napi on RX queues from VSI + * @vsi: VSI to schedule napi on + */ +static void ice_vsi_rx_napi_schedule(struct ice_vsi *vsi) +{ + int i; + + ice_for_each_rxq(vsi, i) { + struct ice_rx_ring *rx_ring = vsi->rx_rings[i]; + + if (rx_ring->xsk_pool) + napi_schedule(&rx_ring->q_vector->napi); + } +} + +/** + * ice_vsi_determine_xdp_res - figure out how many Tx qs can XDP have + * @vsi: VSI to determine the count of XDP Tx qs + * + * returns 0 if Tx qs count is higher than at least half of CPU count, + * -ENOMEM otherwise + */ +int ice_vsi_determine_xdp_res(struct ice_vsi *vsi) +{ + u16 avail = ice_get_avail_txq_count(vsi->back); + u16 cpus = num_possible_cpus(); + + if (avail < cpus / 2) + return -ENOMEM; + + vsi->num_xdp_txq = min_t(u16, avail, cpus); + + if (vsi->num_xdp_txq < cpus) + static_branch_inc(&ice_xdp_locking_key); + + return 0; +} + +/** + * ice_xdp_setup_prog - Add or remove XDP eBPF program + * @vsi: VSI to setup XDP for + * @prog: XDP program + * @extack: netlink extended ack + */ +static int +ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog, + struct netlink_ext_ack *extack) +{ + int frame_size = vsi->netdev->mtu + ICE_ETH_PKT_HDR_PAD; + bool if_running = netif_running(vsi->netdev); + int ret = 0, xdp_ring_err = 0; + + if (frame_size > vsi->rx_buf_len) { + NL_SET_ERR_MSG_MOD(extack, "MTU too large for loading XDP"); + return -EOPNOTSUPP; + } + + /* need to stop netdev while setting up the program for Rx rings */ + if (if_running && !test_and_set_bit(ICE_VSI_DOWN, vsi->state)) { + ret = ice_down(vsi); + if (ret) { + NL_SET_ERR_MSG_MOD(extack, "Preparing device for XDP attach failed"); + return ret; + } + } + + if (!ice_is_xdp_ena_vsi(vsi) && prog) { + xdp_ring_err = ice_vsi_determine_xdp_res(vsi); + if (xdp_ring_err) { + NL_SET_ERR_MSG_MOD(extack, "Not enough Tx resources for XDP"); + } else { + xdp_ring_err = ice_prepare_xdp_rings(vsi, prog); + if (xdp_ring_err) + NL_SET_ERR_MSG_MOD(extack, "Setting up XDP Tx resources failed"); + } + /* reallocate Rx queues that are used for zero-copy */ + xdp_ring_err = ice_realloc_zc_buf(vsi, true); + if (xdp_ring_err) + NL_SET_ERR_MSG_MOD(extack, "Setting up XDP Rx resources failed"); + } else if (ice_is_xdp_ena_vsi(vsi) && !prog) { + xdp_ring_err = ice_destroy_xdp_rings(vsi); + if (xdp_ring_err) + NL_SET_ERR_MSG_MOD(extack, "Freeing XDP Tx resources failed"); + /* reallocate Rx queues that were used for zero-copy */ + xdp_ring_err = ice_realloc_zc_buf(vsi, false); + if (xdp_ring_err) + NL_SET_ERR_MSG_MOD(extack, "Freeing XDP Rx resources failed"); + } else { + /* safe to call even when prog == vsi->xdp_prog as + * dev_xdp_install in net/core/dev.c incremented prog's + * refcount so corresponding bpf_prog_put won't cause + * underflow + */ + ice_vsi_assign_bpf_prog(vsi, prog); + } + + if (if_running) + ret = ice_up(vsi); + + if (!ret && prog) + ice_vsi_rx_napi_schedule(vsi); + + return (ret || xdp_ring_err) ? -ENOMEM : 0; +} + +/** + * ice_xdp_safe_mode - XDP handler for safe mode + * @dev: netdevice + * @xdp: XDP command + */ +static int ice_xdp_safe_mode(struct net_device __always_unused *dev, + struct netdev_bpf *xdp) +{ + NL_SET_ERR_MSG_MOD(xdp->extack, + "Please provide working DDP firmware package in order to use XDP\n" + "Refer to Documentation/networking/device_drivers/ethernet/intel/ice.rst"); + return -EOPNOTSUPP; +} + +/** + * ice_xdp - implements XDP handler + * @dev: netdevice + * @xdp: XDP command + */ +static int ice_xdp(struct net_device *dev, struct netdev_bpf *xdp) +{ + struct ice_netdev_priv *np = netdev_priv(dev); + struct ice_vsi *vsi = np->vsi; + + if (vsi->type != ICE_VSI_PF) { + NL_SET_ERR_MSG_MOD(xdp->extack, "XDP can be loaded only on PF VSI"); + return -EINVAL; + } + + switch (xdp->command) { + case XDP_SETUP_PROG: + return ice_xdp_setup_prog(vsi, xdp->prog, xdp->extack); + case XDP_SETUP_XSK_POOL: + return ice_xsk_pool_setup(vsi, xdp->xsk.pool, + xdp->xsk.queue_id); + default: + return -EINVAL; + } +} + +/** + * ice_ena_misc_vector - enable the non-queue interrupts + * @pf: board private structure + */ +static void ice_ena_misc_vector(struct ice_pf *pf) +{ + struct ice_hw *hw = &pf->hw; + u32 val; + + /* Disable anti-spoof detection interrupt to prevent spurious event + * interrupts during a function reset. Anti-spoof functionally is + * still supported. + */ + val = rd32(hw, GL_MDCK_TX_TDPU); + val |= GL_MDCK_TX_TDPU_RCU_ANTISPOOF_ITR_DIS_M; + wr32(hw, GL_MDCK_TX_TDPU, val); + + /* clear things first */ + wr32(hw, PFINT_OICR_ENA, 0); /* disable all */ + rd32(hw, PFINT_OICR); /* read to clear */ + + val = (PFINT_OICR_ECC_ERR_M | + PFINT_OICR_MAL_DETECT_M | + PFINT_OICR_GRST_M | + PFINT_OICR_PCI_EXCEPTION_M | + PFINT_OICR_VFLR_M | + PFINT_OICR_HMC_ERR_M | + PFINT_OICR_PE_PUSH_M | + PFINT_OICR_PE_CRITERR_M); + + wr32(hw, PFINT_OICR_ENA, val); + + /* SW_ITR_IDX = 0, but don't change INTENA */ + wr32(hw, GLINT_DYN_CTL(pf->oicr_idx), + GLINT_DYN_CTL_SW_ITR_INDX_M | GLINT_DYN_CTL_INTENA_MSK_M); +} + +/** + * ice_misc_intr - misc interrupt handler + * @irq: interrupt number + * @data: pointer to a q_vector + */ +static irqreturn_t ice_misc_intr(int __always_unused irq, void *data) +{ + struct ice_pf *pf = (struct ice_pf *)data; + struct ice_hw *hw = &pf->hw; + irqreturn_t ret = IRQ_NONE; + struct device *dev; + u32 oicr, ena_mask; + + dev = ice_pf_to_dev(pf); + set_bit(ICE_ADMINQ_EVENT_PENDING, pf->state); + set_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state); + set_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state); + + oicr = rd32(hw, PFINT_OICR); + ena_mask = rd32(hw, PFINT_OICR_ENA); + + if (oicr & PFINT_OICR_SWINT_M) { + ena_mask &= ~PFINT_OICR_SWINT_M; + pf->sw_int_count++; + } + + if (oicr & PFINT_OICR_MAL_DETECT_M) { + ena_mask &= ~PFINT_OICR_MAL_DETECT_M; + set_bit(ICE_MDD_EVENT_PENDING, pf->state); + } + if (oicr & PFINT_OICR_VFLR_M) { + /* disable any further VFLR event notifications */ + if (test_bit(ICE_VF_RESETS_DISABLED, pf->state)) { + u32 reg = rd32(hw, PFINT_OICR_ENA); + + reg &= ~PFINT_OICR_VFLR_M; + wr32(hw, PFINT_OICR_ENA, reg); + } else { + ena_mask &= ~PFINT_OICR_VFLR_M; + set_bit(ICE_VFLR_EVENT_PENDING, pf->state); + } + } + + if (oicr & PFINT_OICR_GRST_M) { + u32 reset; + + /* we have a reset warning */ + ena_mask &= ~PFINT_OICR_GRST_M; + reset = (rd32(hw, GLGEN_RSTAT) & GLGEN_RSTAT_RESET_TYPE_M) >> + GLGEN_RSTAT_RESET_TYPE_S; + + if (reset == ICE_RESET_CORER) + pf->corer_count++; + else if (reset == ICE_RESET_GLOBR) + pf->globr_count++; + else if (reset == ICE_RESET_EMPR) + pf->empr_count++; + else + dev_dbg(dev, "Invalid reset type %d\n", reset); + + /* If a reset cycle isn't already in progress, we set a bit in + * pf->state so that the service task can start a reset/rebuild. + */ + if (!test_and_set_bit(ICE_RESET_OICR_RECV, pf->state)) { + if (reset == ICE_RESET_CORER) + set_bit(ICE_CORER_RECV, pf->state); + else if (reset == ICE_RESET_GLOBR) + set_bit(ICE_GLOBR_RECV, pf->state); + else + set_bit(ICE_EMPR_RECV, pf->state); + + /* There are couple of different bits at play here. + * hw->reset_ongoing indicates whether the hardware is + * in reset. This is set to true when a reset interrupt + * is received and set back to false after the driver + * has determined that the hardware is out of reset. + * + * ICE_RESET_OICR_RECV in pf->state indicates + * that a post reset rebuild is required before the + * driver is operational again. This is set above. + * + * As this is the start of the reset/rebuild cycle, set + * both to indicate that. + */ + hw->reset_ongoing = true; + } + } + + if (oicr & PFINT_OICR_TSYN_TX_M) { + ena_mask &= ~PFINT_OICR_TSYN_TX_M; + if (!hw->reset_ongoing) { + set_bit(ICE_MISC_THREAD_TX_TSTAMP, pf->misc_thread); + ret = IRQ_WAKE_THREAD; + } + } + + if (oicr & PFINT_OICR_TSYN_EVNT_M) { + u8 tmr_idx = hw->func_caps.ts_func_info.tmr_index_owned; + u32 gltsyn_stat = rd32(hw, GLTSYN_STAT(tmr_idx)); + + ena_mask &= ~PFINT_OICR_TSYN_EVNT_M; + + if (hw->func_caps.ts_func_info.src_tmr_owned) { + /* Save EVENTs from GLTSYN register */ + pf->ptp.ext_ts_irq |= gltsyn_stat & + (GLTSYN_STAT_EVENT0_M | + GLTSYN_STAT_EVENT1_M | + GLTSYN_STAT_EVENT2_M); + + set_bit(ICE_MISC_THREAD_EXTTS_EVENT, pf->misc_thread); + ret = IRQ_WAKE_THREAD; + } + } + +#define ICE_AUX_CRIT_ERR (PFINT_OICR_PE_CRITERR_M | PFINT_OICR_HMC_ERR_M | PFINT_OICR_PE_PUSH_M) + if (oicr & ICE_AUX_CRIT_ERR) { + pf->oicr_err_reg |= oicr; + set_bit(ICE_AUX_ERR_PENDING, pf->state); + ena_mask &= ~ICE_AUX_CRIT_ERR; + } + + /* Report any remaining unexpected interrupts */ + oicr &= ena_mask; + if (oicr) { + dev_dbg(dev, "unhandled interrupt oicr=0x%08x\n", oicr); + /* If a critical error is pending there is no choice but to + * reset the device. + */ + if (oicr & (PFINT_OICR_PCI_EXCEPTION_M | + PFINT_OICR_ECC_ERR_M)) { + set_bit(ICE_PFR_REQ, pf->state); + ice_service_task_schedule(pf); + } + } + if (!ret) + ret = IRQ_HANDLED; + + ice_service_task_schedule(pf); + ice_irq_dynamic_ena(hw, NULL, NULL); + + return ret; +} + +/** + * ice_misc_intr_thread_fn - misc interrupt thread function + * @irq: interrupt number + * @data: pointer to a q_vector + */ +static irqreturn_t ice_misc_intr_thread_fn(int __always_unused irq, void *data) +{ + struct ice_pf *pf = data; + + if (ice_is_reset_in_progress(pf->state)) + return IRQ_HANDLED; + + if (test_and_clear_bit(ICE_MISC_THREAD_EXTTS_EVENT, pf->misc_thread)) + ice_ptp_extts_event(pf); + + if (test_and_clear_bit(ICE_MISC_THREAD_TX_TSTAMP, pf->misc_thread)) { + while (!ice_ptp_process_ts(pf)) + usleep_range(50, 100); + } + + return IRQ_HANDLED; +} + +/** + * ice_dis_ctrlq_interrupts - disable control queue interrupts + * @hw: pointer to HW structure + */ +static void ice_dis_ctrlq_interrupts(struct ice_hw *hw) +{ + /* disable Admin queue Interrupt causes */ + wr32(hw, PFINT_FW_CTL, + rd32(hw, PFINT_FW_CTL) & ~PFINT_FW_CTL_CAUSE_ENA_M); + + /* disable Mailbox queue Interrupt causes */ + wr32(hw, PFINT_MBX_CTL, + rd32(hw, PFINT_MBX_CTL) & ~PFINT_MBX_CTL_CAUSE_ENA_M); + + wr32(hw, PFINT_SB_CTL, + rd32(hw, PFINT_SB_CTL) & ~PFINT_SB_CTL_CAUSE_ENA_M); + + /* disable Control queue Interrupt causes */ + wr32(hw, PFINT_OICR_CTL, + rd32(hw, PFINT_OICR_CTL) & ~PFINT_OICR_CTL_CAUSE_ENA_M); + + ice_flush(hw); +} + +/** + * ice_free_irq_msix_misc - Unroll misc vector setup + * @pf: board private structure + */ +static void ice_free_irq_msix_misc(struct ice_pf *pf) +{ + struct ice_hw *hw = &pf->hw; + + ice_dis_ctrlq_interrupts(hw); + + /* disable OICR interrupt */ + wr32(hw, PFINT_OICR_ENA, 0); + ice_flush(hw); + + if (pf->msix_entries) { + synchronize_irq(pf->msix_entries[pf->oicr_idx].vector); + devm_free_irq(ice_pf_to_dev(pf), + pf->msix_entries[pf->oicr_idx].vector, pf); + } + + pf->num_avail_sw_msix += 1; + ice_free_res(pf->irq_tracker, pf->oicr_idx, ICE_RES_MISC_VEC_ID); +} + +/** + * ice_ena_ctrlq_interrupts - enable control queue interrupts + * @hw: pointer to HW structure + * @reg_idx: HW vector index to associate the control queue interrupts with + */ +static void ice_ena_ctrlq_interrupts(struct ice_hw *hw, u16 reg_idx) +{ + u32 val; + + val = ((reg_idx & PFINT_OICR_CTL_MSIX_INDX_M) | + PFINT_OICR_CTL_CAUSE_ENA_M); + wr32(hw, PFINT_OICR_CTL, val); + + /* enable Admin queue Interrupt causes */ + val = ((reg_idx & PFINT_FW_CTL_MSIX_INDX_M) | + PFINT_FW_CTL_CAUSE_ENA_M); + wr32(hw, PFINT_FW_CTL, val); + + /* enable Mailbox queue Interrupt causes */ + val = ((reg_idx & PFINT_MBX_CTL_MSIX_INDX_M) | + PFINT_MBX_CTL_CAUSE_ENA_M); + wr32(hw, PFINT_MBX_CTL, val); + + /* This enables Sideband queue Interrupt causes */ + val = ((reg_idx & PFINT_SB_CTL_MSIX_INDX_M) | + PFINT_SB_CTL_CAUSE_ENA_M); + wr32(hw, PFINT_SB_CTL, val); + + ice_flush(hw); +} + +/** + * ice_req_irq_msix_misc - Setup the misc vector to handle non queue events + * @pf: board private structure + * + * This sets up the handler for MSIX 0, which is used to manage the + * non-queue interrupts, e.g. AdminQ and errors. This is not used + * when in MSI or Legacy interrupt mode. + */ +static int ice_req_irq_msix_misc(struct ice_pf *pf) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_hw *hw = &pf->hw; + int oicr_idx, err = 0; + + if (!pf->int_name[0]) + snprintf(pf->int_name, sizeof(pf->int_name) - 1, "%s-%s:misc", + dev_driver_string(dev), dev_name(dev)); + + /* Do not request IRQ but do enable OICR interrupt since settings are + * lost during reset. Note that this function is called only during + * rebuild path and not while reset is in progress. + */ + if (ice_is_reset_in_progress(pf->state)) + goto skip_req_irq; + + /* reserve one vector in irq_tracker for misc interrupts */ + oicr_idx = ice_get_res(pf, pf->irq_tracker, 1, ICE_RES_MISC_VEC_ID); + if (oicr_idx < 0) + return oicr_idx; + + pf->num_avail_sw_msix -= 1; + pf->oicr_idx = (u16)oicr_idx; + + err = devm_request_threaded_irq(dev, + pf->msix_entries[pf->oicr_idx].vector, + ice_misc_intr, ice_misc_intr_thread_fn, + 0, pf->int_name, pf); + if (err) { + dev_err(dev, "devm_request_threaded_irq for %s failed: %d\n", + pf->int_name, err); + ice_free_res(pf->irq_tracker, 1, ICE_RES_MISC_VEC_ID); + pf->num_avail_sw_msix += 1; + return err; + } + +skip_req_irq: + ice_ena_misc_vector(pf); + + ice_ena_ctrlq_interrupts(hw, pf->oicr_idx); + wr32(hw, GLINT_ITR(ICE_RX_ITR, pf->oicr_idx), + ITR_REG_ALIGN(ICE_ITR_8K) >> ICE_ITR_GRAN_S); + + ice_flush(hw); + ice_irq_dynamic_ena(hw, NULL, NULL); + + return 0; +} + +/** + * ice_napi_add - register NAPI handler for the VSI + * @vsi: VSI for which NAPI handler is to be registered + * + * This function is only called in the driver's load path. Registering the NAPI + * handler is done in ice_vsi_alloc_q_vector() for all other cases (i.e. resume, + * reset/rebuild, etc.) + */ +static void ice_napi_add(struct ice_vsi *vsi) +{ + int v_idx; + + if (!vsi->netdev) + return; + + ice_for_each_q_vector(vsi, v_idx) + netif_napi_add(vsi->netdev, &vsi->q_vectors[v_idx]->napi, + ice_napi_poll); +} + +/** + * ice_set_ops - set netdev and ethtools ops for the given netdev + * @netdev: netdev instance + */ +static void ice_set_ops(struct net_device *netdev) +{ + struct ice_pf *pf = ice_netdev_to_pf(netdev); + + if (ice_is_safe_mode(pf)) { + netdev->netdev_ops = &ice_netdev_safe_mode_ops; + ice_set_ethtool_safe_mode_ops(netdev); + return; + } + + netdev->netdev_ops = &ice_netdev_ops; + netdev->udp_tunnel_nic_info = &pf->hw.udp_tunnel_nic; + ice_set_ethtool_ops(netdev); +} + +/** + * ice_set_netdev_features - set features for the given netdev + * @netdev: netdev instance + */ +static void ice_set_netdev_features(struct net_device *netdev) +{ + struct ice_pf *pf = ice_netdev_to_pf(netdev); + bool is_dvm_ena = ice_is_dvm_ena(&pf->hw); + netdev_features_t csumo_features; + netdev_features_t vlano_features; + netdev_features_t dflt_features; + netdev_features_t tso_features; + + if (ice_is_safe_mode(pf)) { + /* safe mode */ + netdev->features = NETIF_F_SG | NETIF_F_HIGHDMA; + netdev->hw_features = netdev->features; + return; + } + + dflt_features = NETIF_F_SG | + NETIF_F_HIGHDMA | + NETIF_F_NTUPLE | + NETIF_F_RXHASH; + + csumo_features = NETIF_F_RXCSUM | + NETIF_F_IP_CSUM | + NETIF_F_SCTP_CRC | + NETIF_F_IPV6_CSUM; + + vlano_features = NETIF_F_HW_VLAN_CTAG_FILTER | + NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_CTAG_RX; + + /* Enable CTAG/STAG filtering by default in Double VLAN Mode (DVM) */ + if (is_dvm_ena) + vlano_features |= NETIF_F_HW_VLAN_STAG_FILTER; + + tso_features = NETIF_F_TSO | + NETIF_F_TSO_ECN | + NETIF_F_TSO6 | + NETIF_F_GSO_GRE | + NETIF_F_GSO_UDP_TUNNEL | + NETIF_F_GSO_GRE_CSUM | + NETIF_F_GSO_UDP_TUNNEL_CSUM | + NETIF_F_GSO_PARTIAL | + NETIF_F_GSO_IPXIP4 | + NETIF_F_GSO_IPXIP6 | + NETIF_F_GSO_UDP_L4; + + netdev->gso_partial_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM | + NETIF_F_GSO_GRE_CSUM; + /* set features that user can change */ + netdev->hw_features = dflt_features | csumo_features | + vlano_features | tso_features; + + /* add support for HW_CSUM on packets with MPLS header */ + netdev->mpls_features = NETIF_F_HW_CSUM | + NETIF_F_TSO | + NETIF_F_TSO6; + + /* enable features */ + netdev->features |= netdev->hw_features; + + netdev->hw_features |= NETIF_F_HW_TC; + netdev->hw_features |= NETIF_F_LOOPBACK; + + /* encap and VLAN devices inherit default, csumo and tso features */ + netdev->hw_enc_features |= dflt_features | csumo_features | + tso_features; + netdev->vlan_features |= dflt_features | csumo_features | + tso_features; + + /* advertise support but don't enable by default since only one type of + * VLAN offload can be enabled at a time (i.e. CTAG or STAG). When one + * type turns on the other has to be turned off. This is enforced by the + * ice_fix_features() ndo callback. + */ + if (is_dvm_ena) + netdev->hw_features |= NETIF_F_HW_VLAN_STAG_RX | + NETIF_F_HW_VLAN_STAG_TX; + + /* Leave CRC / FCS stripping enabled by default, but allow the value to + * be changed at runtime + */ + netdev->hw_features |= NETIF_F_RXFCS; +} + +/** + * ice_cfg_netdev - Allocate, configure and register a netdev + * @vsi: the VSI associated with the new netdev + * + * Returns 0 on success, negative value on failure + */ +static int ice_cfg_netdev(struct ice_vsi *vsi) +{ + struct ice_netdev_priv *np; + struct net_device *netdev; + u8 mac_addr[ETH_ALEN]; + + netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq, + vsi->alloc_rxq); + if (!netdev) + return -ENOMEM; + + set_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state); + vsi->netdev = netdev; + np = netdev_priv(netdev); + np->vsi = vsi; + + ice_set_netdev_features(netdev); + + ice_set_ops(netdev); + + if (vsi->type == ICE_VSI_PF) { + SET_NETDEV_DEV(netdev, ice_pf_to_dev(vsi->back)); + ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr); + eth_hw_addr_set(netdev, mac_addr); + ether_addr_copy(netdev->perm_addr, mac_addr); + } + + netdev->priv_flags |= IFF_UNICAST_FLT; + + /* Setup netdev TC information */ + ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc); + + /* setup watchdog timeout value to be 5 second */ + netdev->watchdog_timeo = 5 * HZ; + + netdev->min_mtu = ETH_MIN_MTU; + netdev->max_mtu = ICE_MAX_MTU; + + return 0; +} + +/** + * ice_fill_rss_lut - Fill the RSS lookup table with default values + * @lut: Lookup table + * @rss_table_size: Lookup table size + * @rss_size: Range of queue number for hashing + */ +void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size) +{ + u16 i; + + for (i = 0; i < rss_table_size; i++) + lut[i] = i % rss_size; +} + +/** + * ice_pf_vsi_setup - Set up a PF VSI + * @pf: board private structure + * @pi: pointer to the port_info instance + * + * Returns pointer to the successfully allocated VSI software struct + * on success, otherwise returns NULL on failure. + */ +static struct ice_vsi * +ice_pf_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi) +{ + return ice_vsi_setup(pf, pi, ICE_VSI_PF, NULL, NULL); +} + +static struct ice_vsi * +ice_chnl_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi, + struct ice_channel *ch) +{ + return ice_vsi_setup(pf, pi, ICE_VSI_CHNL, NULL, ch); +} + +/** + * ice_ctrl_vsi_setup - Set up a control VSI + * @pf: board private structure + * @pi: pointer to the port_info instance + * + * Returns pointer to the successfully allocated VSI software struct + * on success, otherwise returns NULL on failure. + */ +static struct ice_vsi * +ice_ctrl_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi) +{ + return ice_vsi_setup(pf, pi, ICE_VSI_CTRL, NULL, NULL); +} + +/** + * ice_lb_vsi_setup - Set up a loopback VSI + * @pf: board private structure + * @pi: pointer to the port_info instance + * + * Returns pointer to the successfully allocated VSI software struct + * on success, otherwise returns NULL on failure. + */ +struct ice_vsi * +ice_lb_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi) +{ + return ice_vsi_setup(pf, pi, ICE_VSI_LB, NULL, NULL); +} + +/** + * ice_vlan_rx_add_vid - Add a VLAN ID filter to HW offload + * @netdev: network interface to be adjusted + * @proto: VLAN TPID + * @vid: VLAN ID to be added + * + * net_device_ops implementation for adding VLAN IDs + */ +static int +ice_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi_vlan_ops *vlan_ops; + struct ice_vsi *vsi = np->vsi; + struct ice_vlan vlan; + int ret; + + /* VLAN 0 is added by default during load/reset */ + if (!vid) + return 0; + + while (test_and_set_bit(ICE_CFG_BUSY, vsi->state)) + usleep_range(1000, 2000); + + /* Add multicast promisc rule for the VLAN ID to be added if + * all-multicast is currently enabled. + */ + if (vsi->current_netdev_flags & IFF_ALLMULTI) { + ret = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, + ICE_MCAST_VLAN_PROMISC_BITS, + vid); + if (ret) + goto finish; + } + + vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); + + /* Add a switch rule for this VLAN ID so its corresponding VLAN tagged + * packets aren't pruned by the device's internal switch on Rx + */ + vlan = ICE_VLAN(be16_to_cpu(proto), vid, 0); + ret = vlan_ops->add_vlan(vsi, &vlan); + if (ret) + goto finish; + + /* If all-multicast is currently enabled and this VLAN ID is only one + * besides VLAN-0 we have to update look-up type of multicast promisc + * rule for VLAN-0 from ICE_SW_LKUP_PROMISC to ICE_SW_LKUP_PROMISC_VLAN. + */ + if ((vsi->current_netdev_flags & IFF_ALLMULTI) && + ice_vsi_num_non_zero_vlans(vsi) == 1) { + ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, + ICE_MCAST_PROMISC_BITS, 0); + ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, + ICE_MCAST_VLAN_PROMISC_BITS, 0); + } + +finish: + clear_bit(ICE_CFG_BUSY, vsi->state); + + return ret; +} + +/** + * ice_vlan_rx_kill_vid - Remove a VLAN ID filter from HW offload + * @netdev: network interface to be adjusted + * @proto: VLAN TPID + * @vid: VLAN ID to be removed + * + * net_device_ops implementation for removing VLAN IDs + */ +static int +ice_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi_vlan_ops *vlan_ops; + struct ice_vsi *vsi = np->vsi; + struct ice_vlan vlan; + int ret; + + /* don't allow removal of VLAN 0 */ + if (!vid) + return 0; + + while (test_and_set_bit(ICE_CFG_BUSY, vsi->state)) + usleep_range(1000, 2000); + + ret = ice_clear_vsi_promisc(&vsi->back->hw, vsi->idx, + ICE_MCAST_VLAN_PROMISC_BITS, vid); + if (ret) { + netdev_err(netdev, "Error clearing multicast promiscuous mode on VSI %i\n", + vsi->vsi_num); + vsi->current_netdev_flags |= IFF_ALLMULTI; + } + + vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); + + /* Make sure VLAN delete is successful before updating VLAN + * information + */ + vlan = ICE_VLAN(be16_to_cpu(proto), vid, 0); + ret = vlan_ops->del_vlan(vsi, &vlan); + if (ret) + goto finish; + + /* Remove multicast promisc rule for the removed VLAN ID if + * all-multicast is enabled. + */ + if (vsi->current_netdev_flags & IFF_ALLMULTI) + ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, + ICE_MCAST_VLAN_PROMISC_BITS, vid); + + if (!ice_vsi_has_non_zero_vlans(vsi)) { + /* Update look-up type of multicast promisc rule for VLAN 0 + * from ICE_SW_LKUP_PROMISC_VLAN to ICE_SW_LKUP_PROMISC when + * all-multicast is enabled and VLAN 0 is the only VLAN rule. + */ + if (vsi->current_netdev_flags & IFF_ALLMULTI) { + ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, + ICE_MCAST_VLAN_PROMISC_BITS, + 0); + ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, + ICE_MCAST_PROMISC_BITS, 0); + } + } + +finish: + clear_bit(ICE_CFG_BUSY, vsi->state); + + return ret; +} + +/** + * ice_rep_indr_tc_block_unbind + * @cb_priv: indirection block private data + */ +static void ice_rep_indr_tc_block_unbind(void *cb_priv) +{ + struct ice_indr_block_priv *indr_priv = cb_priv; + + list_del(&indr_priv->list); + kfree(indr_priv); +} + +/** + * ice_tc_indir_block_unregister - Unregister TC indirect block notifications + * @vsi: VSI struct which has the netdev + */ +static void ice_tc_indir_block_unregister(struct ice_vsi *vsi) +{ + struct ice_netdev_priv *np = netdev_priv(vsi->netdev); + + flow_indr_dev_unregister(ice_indr_setup_tc_cb, np, + ice_rep_indr_tc_block_unbind); +} + +/** + * ice_tc_indir_block_remove - clean indirect TC block notifications + * @pf: PF structure + */ +static void ice_tc_indir_block_remove(struct ice_pf *pf) +{ + struct ice_vsi *pf_vsi = ice_get_main_vsi(pf); + + if (!pf_vsi) + return; + + ice_tc_indir_block_unregister(pf_vsi); +} + +/** + * ice_tc_indir_block_register - Register TC indirect block notifications + * @vsi: VSI struct which has the netdev + * + * Returns 0 on success, negative value on failure + */ +static int ice_tc_indir_block_register(struct ice_vsi *vsi) +{ + struct ice_netdev_priv *np; + + if (!vsi || !vsi->netdev) + return -EINVAL; + + np = netdev_priv(vsi->netdev); + + INIT_LIST_HEAD(&np->tc_indr_block_priv_list); + return flow_indr_dev_register(ice_indr_setup_tc_cb, np); +} + +/** + * ice_setup_pf_sw - Setup the HW switch on startup or after reset + * @pf: board private structure + * + * Returns 0 on success, negative value on failure + */ +static int ice_setup_pf_sw(struct ice_pf *pf) +{ + struct device *dev = ice_pf_to_dev(pf); + bool dvm = ice_is_dvm_ena(&pf->hw); + struct ice_vsi *vsi; + int status; + + if (ice_is_reset_in_progress(pf->state)) + return -EBUSY; + + status = ice_aq_set_port_params(pf->hw.port_info, dvm, NULL); + if (status) + return -EIO; + + vsi = ice_pf_vsi_setup(pf, pf->hw.port_info); + if (!vsi) + return -ENOMEM; + + /* init channel list */ + INIT_LIST_HEAD(&vsi->ch_list); + + status = ice_cfg_netdev(vsi); + if (status) + goto unroll_vsi_setup; + /* netdev has to be configured before setting frame size */ + ice_vsi_cfg_frame_size(vsi); + + /* init indirect block notifications */ + status = ice_tc_indir_block_register(vsi); + if (status) { + dev_err(dev, "Failed to register netdev notifier\n"); + goto unroll_cfg_netdev; + } + + /* Setup DCB netlink interface */ + ice_dcbnl_setup(vsi); + + /* registering the NAPI handler requires both the queues and + * netdev to be created, which are done in ice_pf_vsi_setup() + * and ice_cfg_netdev() respectively + */ + ice_napi_add(vsi); + + status = ice_init_mac_fltr(pf); + if (status) + goto unroll_napi_add; + + return 0; + +unroll_napi_add: + ice_tc_indir_block_unregister(vsi); +unroll_cfg_netdev: + if (vsi) { + ice_napi_del(vsi); + if (vsi->netdev) { + clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state); + free_netdev(vsi->netdev); + vsi->netdev = NULL; + } + } + +unroll_vsi_setup: + ice_vsi_release(vsi); + return status; +} + +/** + * ice_get_avail_q_count - Get count of queues in use + * @pf_qmap: bitmap to get queue use count from + * @lock: pointer to a mutex that protects access to pf_qmap + * @size: size of the bitmap + */ +static u16 +ice_get_avail_q_count(unsigned long *pf_qmap, struct mutex *lock, u16 size) +{ + unsigned long bit; + u16 count = 0; + + mutex_lock(lock); + for_each_clear_bit(bit, pf_qmap, size) + count++; + mutex_unlock(lock); + + return count; +} + +/** + * ice_get_avail_txq_count - Get count of Tx queues in use + * @pf: pointer to an ice_pf instance + */ +u16 ice_get_avail_txq_count(struct ice_pf *pf) +{ + return ice_get_avail_q_count(pf->avail_txqs, &pf->avail_q_mutex, + pf->max_pf_txqs); +} + +/** + * ice_get_avail_rxq_count - Get count of Rx queues in use + * @pf: pointer to an ice_pf instance + */ +u16 ice_get_avail_rxq_count(struct ice_pf *pf) +{ + return ice_get_avail_q_count(pf->avail_rxqs, &pf->avail_q_mutex, + pf->max_pf_rxqs); +} + +/** + * ice_deinit_pf - Unrolls initialziations done by ice_init_pf + * @pf: board private structure to initialize + */ +static void ice_deinit_pf(struct ice_pf *pf) +{ + ice_service_task_stop(pf); + mutex_destroy(&pf->adev_mutex); + mutex_destroy(&pf->sw_mutex); + mutex_destroy(&pf->tc_mutex); + mutex_destroy(&pf->avail_q_mutex); + mutex_destroy(&pf->vfs.table_lock); + + if (pf->avail_txqs) { + bitmap_free(pf->avail_txqs); + pf->avail_txqs = NULL; + } + + if (pf->avail_rxqs) { + bitmap_free(pf->avail_rxqs); + pf->avail_rxqs = NULL; + } + + if (pf->ptp.clock) + ptp_clock_unregister(pf->ptp.clock); +} + +/** + * ice_set_pf_caps - set PFs capability flags + * @pf: pointer to the PF instance + */ +static void ice_set_pf_caps(struct ice_pf *pf) +{ + struct ice_hw_func_caps *func_caps = &pf->hw.func_caps; + + clear_bit(ICE_FLAG_RDMA_ENA, pf->flags); + if (func_caps->common_cap.rdma) + set_bit(ICE_FLAG_RDMA_ENA, pf->flags); + clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags); + if (func_caps->common_cap.dcb) + set_bit(ICE_FLAG_DCB_CAPABLE, pf->flags); + clear_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags); + if (func_caps->common_cap.sr_iov_1_1) { + set_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags); + pf->vfs.num_supported = min_t(int, func_caps->num_allocd_vfs, + ICE_MAX_SRIOV_VFS); + } + clear_bit(ICE_FLAG_RSS_ENA, pf->flags); + if (func_caps->common_cap.rss_table_size) + set_bit(ICE_FLAG_RSS_ENA, pf->flags); + + clear_bit(ICE_FLAG_FD_ENA, pf->flags); + if (func_caps->fd_fltr_guar > 0 || func_caps->fd_fltr_best_effort > 0) { + u16 unused; + + /* ctrl_vsi_idx will be set to a valid value when flow director + * is setup by ice_init_fdir + */ + pf->ctrl_vsi_idx = ICE_NO_VSI; + set_bit(ICE_FLAG_FD_ENA, pf->flags); + /* force guaranteed filter pool for PF */ + ice_alloc_fd_guar_item(&pf->hw, &unused, + func_caps->fd_fltr_guar); + /* force shared filter pool for PF */ + ice_alloc_fd_shrd_item(&pf->hw, &unused, + func_caps->fd_fltr_best_effort); + } + + clear_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags); + if (func_caps->common_cap.ieee_1588) + set_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags); + + pf->max_pf_txqs = func_caps->common_cap.num_txq; + pf->max_pf_rxqs = func_caps->common_cap.num_rxq; +} + +/** + * ice_init_pf - Initialize general software structures (struct ice_pf) + * @pf: board private structure to initialize + */ +static int ice_init_pf(struct ice_pf *pf) +{ + ice_set_pf_caps(pf); + + mutex_init(&pf->sw_mutex); + mutex_init(&pf->tc_mutex); + mutex_init(&pf->adev_mutex); + + INIT_HLIST_HEAD(&pf->aq_wait_list); + spin_lock_init(&pf->aq_wait_lock); + init_waitqueue_head(&pf->aq_wait_queue); + + init_waitqueue_head(&pf->reset_wait_queue); + + /* setup service timer and periodic service task */ + timer_setup(&pf->serv_tmr, ice_service_timer, 0); + pf->serv_tmr_period = HZ; + INIT_WORK(&pf->serv_task, ice_service_task); + clear_bit(ICE_SERVICE_SCHED, pf->state); + + mutex_init(&pf->avail_q_mutex); + pf->avail_txqs = bitmap_zalloc(pf->max_pf_txqs, GFP_KERNEL); + if (!pf->avail_txqs) + return -ENOMEM; + + pf->avail_rxqs = bitmap_zalloc(pf->max_pf_rxqs, GFP_KERNEL); + if (!pf->avail_rxqs) { + bitmap_free(pf->avail_txqs); + pf->avail_txqs = NULL; + return -ENOMEM; + } + + mutex_init(&pf->vfs.table_lock); + hash_init(pf->vfs.table); + + return 0; +} + +/** + * ice_reduce_msix_usage - Reduce usage of MSI-X vectors + * @pf: board private structure + * @v_remain: number of remaining MSI-X vectors to be distributed + * + * Reduce the usage of MSI-X vectors when entire request cannot be fulfilled. + * pf->num_lan_msix and pf->num_rdma_msix values are set based on number of + * remaining vectors. + */ +static void ice_reduce_msix_usage(struct ice_pf *pf, int v_remain) +{ + int v_rdma; + + if (!ice_is_rdma_ena(pf)) { + pf->num_lan_msix = v_remain; + return; + } + + /* RDMA needs at least 1 interrupt in addition to AEQ MSIX */ + v_rdma = ICE_RDMA_NUM_AEQ_MSIX + 1; + + if (v_remain < ICE_MIN_LAN_TXRX_MSIX + ICE_MIN_RDMA_MSIX) { + dev_warn(ice_pf_to_dev(pf), "Not enough MSI-X vectors to support RDMA.\n"); + clear_bit(ICE_FLAG_RDMA_ENA, pf->flags); + + pf->num_rdma_msix = 0; + pf->num_lan_msix = ICE_MIN_LAN_TXRX_MSIX; + } else if ((v_remain < ICE_MIN_LAN_TXRX_MSIX + v_rdma) || + (v_remain - v_rdma < v_rdma)) { + /* Support minimum RDMA and give remaining vectors to LAN MSIX */ + pf->num_rdma_msix = ICE_MIN_RDMA_MSIX; + pf->num_lan_msix = v_remain - ICE_MIN_RDMA_MSIX; + } else { + /* Split remaining MSIX with RDMA after accounting for AEQ MSIX + */ + pf->num_rdma_msix = (v_remain - ICE_RDMA_NUM_AEQ_MSIX) / 2 + + ICE_RDMA_NUM_AEQ_MSIX; + pf->num_lan_msix = v_remain - pf->num_rdma_msix; + } +} + +/** + * ice_ena_msix_range - Request a range of MSIX vectors from the OS + * @pf: board private structure + * + * Compute the number of MSIX vectors wanted and request from the OS. Adjust + * device usage if there are not enough vectors. Return the number of vectors + * reserved or negative on failure. + */ +static int ice_ena_msix_range(struct ice_pf *pf) +{ + int num_cpus, hw_num_msix, v_other, v_wanted, v_actual; + struct device *dev = ice_pf_to_dev(pf); + int err, i; + + hw_num_msix = pf->hw.func_caps.common_cap.num_msix_vectors; + num_cpus = num_online_cpus(); + + /* LAN miscellaneous handler */ + v_other = ICE_MIN_LAN_OICR_MSIX; + + /* Flow Director */ + if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) + v_other += ICE_FDIR_MSIX; + + /* switchdev */ + v_other += ICE_ESWITCH_MSIX; + + v_wanted = v_other; + + /* LAN traffic */ + pf->num_lan_msix = num_cpus; + v_wanted += pf->num_lan_msix; + + /* RDMA auxiliary driver */ + if (ice_is_rdma_ena(pf)) { + pf->num_rdma_msix = num_cpus + ICE_RDMA_NUM_AEQ_MSIX; + v_wanted += pf->num_rdma_msix; + } + + if (v_wanted > hw_num_msix) { + int v_remain; + + dev_warn(dev, "not enough device MSI-X vectors. wanted = %d, available = %d\n", + v_wanted, hw_num_msix); + + if (hw_num_msix < ICE_MIN_MSIX) { + err = -ERANGE; + goto exit_err; + } + + v_remain = hw_num_msix - v_other; + if (v_remain < ICE_MIN_LAN_TXRX_MSIX) { + v_other = ICE_MIN_MSIX - ICE_MIN_LAN_TXRX_MSIX; + v_remain = ICE_MIN_LAN_TXRX_MSIX; + } + + ice_reduce_msix_usage(pf, v_remain); + v_wanted = pf->num_lan_msix + pf->num_rdma_msix + v_other; + + dev_notice(dev, "Reducing request to %d MSI-X vectors for LAN traffic.\n", + pf->num_lan_msix); + if (ice_is_rdma_ena(pf)) + dev_notice(dev, "Reducing request to %d MSI-X vectors for RDMA.\n", + pf->num_rdma_msix); + } + + pf->msix_entries = devm_kcalloc(dev, v_wanted, + sizeof(*pf->msix_entries), GFP_KERNEL); + if (!pf->msix_entries) { + err = -ENOMEM; + goto exit_err; + } + + for (i = 0; i < v_wanted; i++) + pf->msix_entries[i].entry = i; + + /* actually reserve the vectors */ + v_actual = pci_enable_msix_range(pf->pdev, pf->msix_entries, + ICE_MIN_MSIX, v_wanted); + if (v_actual < 0) { + dev_err(dev, "unable to reserve MSI-X vectors\n"); + err = v_actual; + goto msix_err; + } + + if (v_actual < v_wanted) { + dev_warn(dev, "not enough OS MSI-X vectors. requested = %d, obtained = %d\n", + v_wanted, v_actual); + + if (v_actual < ICE_MIN_MSIX) { + /* error if we can't get minimum vectors */ + pci_disable_msix(pf->pdev); + err = -ERANGE; + goto msix_err; + } else { + int v_remain = v_actual - v_other; + + if (v_remain < ICE_MIN_LAN_TXRX_MSIX) + v_remain = ICE_MIN_LAN_TXRX_MSIX; + + ice_reduce_msix_usage(pf, v_remain); + + dev_notice(dev, "Enabled %d MSI-X vectors for LAN traffic.\n", + pf->num_lan_msix); + + if (ice_is_rdma_ena(pf)) + dev_notice(dev, "Enabled %d MSI-X vectors for RDMA.\n", + pf->num_rdma_msix); + } + } + + return v_actual; + +msix_err: + devm_kfree(dev, pf->msix_entries); + +exit_err: + pf->num_rdma_msix = 0; + pf->num_lan_msix = 0; + return err; +} + +/** + * ice_dis_msix - Disable MSI-X interrupt setup in OS + * @pf: board private structure + */ +static void ice_dis_msix(struct ice_pf *pf) +{ + pci_disable_msix(pf->pdev); + devm_kfree(ice_pf_to_dev(pf), pf->msix_entries); + pf->msix_entries = NULL; +} + +/** + * ice_clear_interrupt_scheme - Undo things done by ice_init_interrupt_scheme + * @pf: board private structure + */ +static void ice_clear_interrupt_scheme(struct ice_pf *pf) +{ + ice_dis_msix(pf); + + if (pf->irq_tracker) { + devm_kfree(ice_pf_to_dev(pf), pf->irq_tracker); + pf->irq_tracker = NULL; + } +} + +/** + * ice_init_interrupt_scheme - Determine proper interrupt scheme + * @pf: board private structure to initialize + */ +static int ice_init_interrupt_scheme(struct ice_pf *pf) +{ + int vectors; + + vectors = ice_ena_msix_range(pf); + + if (vectors < 0) + return vectors; + + /* set up vector assignment tracking */ + pf->irq_tracker = devm_kzalloc(ice_pf_to_dev(pf), + struct_size(pf->irq_tracker, list, vectors), + GFP_KERNEL); + if (!pf->irq_tracker) { + ice_dis_msix(pf); + return -ENOMEM; + } + + /* populate SW interrupts pool with number of OS granted IRQs. */ + pf->num_avail_sw_msix = (u16)vectors; + pf->irq_tracker->num_entries = (u16)vectors; + pf->irq_tracker->end = pf->irq_tracker->num_entries; + + return 0; +} + +/** + * ice_is_wol_supported - check if WoL is supported + * @hw: pointer to hardware info + * + * Check if WoL is supported based on the HW configuration. + * Returns true if NVM supports and enables WoL for this port, false otherwise + */ +bool ice_is_wol_supported(struct ice_hw *hw) +{ + u16 wol_ctrl; + + /* A bit set to 1 in the NVM Software Reserved Word 2 (WoL control + * word) indicates WoL is not supported on the corresponding PF ID. + */ + if (ice_read_sr_word(hw, ICE_SR_NVM_WOL_CFG, &wol_ctrl)) + return false; + + return !(BIT(hw->port_info->lport) & wol_ctrl); +} + +/** + * ice_vsi_recfg_qs - Change the number of queues on a VSI + * @vsi: VSI being changed + * @new_rx: new number of Rx queues + * @new_tx: new number of Tx queues + * @locked: is adev device_lock held + * + * Only change the number of queues if new_tx, or new_rx is non-0. + * + * Returns 0 on success. + */ +int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx, bool locked) +{ + struct ice_pf *pf = vsi->back; + int err = 0, timeout = 50; + + if (!new_rx && !new_tx) + return -EINVAL; + + while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) { + timeout--; + if (!timeout) + return -EBUSY; + usleep_range(1000, 2000); + } + + if (new_tx) + vsi->req_txq = (u16)new_tx; + if (new_rx) + vsi->req_rxq = (u16)new_rx; + + /* set for the next time the netdev is started */ + if (!netif_running(vsi->netdev)) { + ice_vsi_rebuild(vsi, false); + dev_dbg(ice_pf_to_dev(pf), "Link is down, queue count change happens when link is brought up\n"); + goto done; + } + + ice_vsi_close(vsi); + ice_vsi_rebuild(vsi, false); + ice_pf_dcb_recfg(pf, locked); + ice_vsi_open(vsi); +done: + clear_bit(ICE_CFG_BUSY, pf->state); + return err; +} + +/** + * ice_set_safe_mode_vlan_cfg - configure PF VSI to allow all VLANs in safe mode + * @pf: PF to configure + * + * No VLAN offloads/filtering are advertised in safe mode so make sure the PF + * VSI can still Tx/Rx VLAN tagged packets. + */ +static void ice_set_safe_mode_vlan_cfg(struct ice_pf *pf) +{ + struct ice_vsi *vsi = ice_get_main_vsi(pf); + struct ice_vsi_ctx *ctxt; + struct ice_hw *hw; + int status; + + if (!vsi) + return; + + ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); + if (!ctxt) + return; + + hw = &pf->hw; + ctxt->info = vsi->info; + + ctxt->info.valid_sections = + cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID | + ICE_AQ_VSI_PROP_SECURITY_VALID | + ICE_AQ_VSI_PROP_SW_VALID); + + /* disable VLAN anti-spoof */ + ctxt->info.sec_flags &= ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << + ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); + + /* disable VLAN pruning and keep all other settings */ + ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; + + /* allow all VLANs on Tx and don't strip on Rx */ + ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL | + ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING; + + status = ice_update_vsi(hw, vsi->idx, ctxt, NULL); + if (status) { + dev_err(ice_pf_to_dev(vsi->back), "Failed to update VSI for safe mode VLANs, err %d aq_err %s\n", + status, ice_aq_str(hw->adminq.sq_last_status)); + } else { + vsi->info.sec_flags = ctxt->info.sec_flags; + vsi->info.sw_flags2 = ctxt->info.sw_flags2; + vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags; + } + + kfree(ctxt); +} + +/** + * ice_log_pkg_init - log result of DDP package load + * @hw: pointer to hardware info + * @state: state of package load + */ +static void ice_log_pkg_init(struct ice_hw *hw, enum ice_ddp_state state) +{ + struct ice_pf *pf = hw->back; + struct device *dev; + + dev = ice_pf_to_dev(pf); + + switch (state) { + case ICE_DDP_PKG_SUCCESS: + dev_info(dev, "The DDP package was successfully loaded: %s version %d.%d.%d.%d\n", + hw->active_pkg_name, + hw->active_pkg_ver.major, + hw->active_pkg_ver.minor, + hw->active_pkg_ver.update, + hw->active_pkg_ver.draft); + break; + case ICE_DDP_PKG_SAME_VERSION_ALREADY_LOADED: + dev_info(dev, "DDP package already present on device: %s version %d.%d.%d.%d\n", + hw->active_pkg_name, + hw->active_pkg_ver.major, + hw->active_pkg_ver.minor, + hw->active_pkg_ver.update, + hw->active_pkg_ver.draft); + break; + case ICE_DDP_PKG_ALREADY_LOADED_NOT_SUPPORTED: + 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", + hw->active_pkg_name, + hw->active_pkg_ver.major, + hw->active_pkg_ver.minor, + ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR); + break; + case ICE_DDP_PKG_COMPATIBLE_ALREADY_LOADED: + 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", + hw->active_pkg_name, + hw->active_pkg_ver.major, + hw->active_pkg_ver.minor, + hw->active_pkg_ver.update, + hw->active_pkg_ver.draft, + hw->pkg_name, + hw->pkg_ver.major, + hw->pkg_ver.minor, + hw->pkg_ver.update, + hw->pkg_ver.draft); + break; + case ICE_DDP_PKG_FW_MISMATCH: + 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"); + break; + case ICE_DDP_PKG_INVALID_FILE: + dev_err(dev, "The DDP package file is invalid. Entering Safe Mode.\n"); + break; + case ICE_DDP_PKG_FILE_VERSION_TOO_HIGH: + dev_err(dev, "The DDP package file version is higher than the driver supports. Please use an updated driver. Entering Safe Mode.\n"); + break; + case ICE_DDP_PKG_FILE_VERSION_TOO_LOW: + 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", + ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR); + break; + case ICE_DDP_PKG_FILE_SIGNATURE_INVALID: + 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"); + break; + case ICE_DDP_PKG_FILE_REVISION_TOO_LOW: + 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"); + break; + case ICE_DDP_PKG_LOAD_ERROR: + dev_err(dev, "An error occurred on the device while loading the DDP package. The device will be reset.\n"); + /* poll for reset to complete */ + if (ice_check_reset(hw)) + dev_err(dev, "Error resetting device. Please reload the driver\n"); + break; + case ICE_DDP_PKG_ERR: + default: + dev_err(dev, "An unknown error occurred when loading the DDP package. Entering Safe Mode.\n"); + break; + } +} + +/** + * ice_load_pkg - load/reload the DDP Package file + * @firmware: firmware structure when firmware requested or NULL for reload + * @pf: pointer to the PF instance + * + * Called on probe and post CORER/GLOBR rebuild to load DDP Package and + * initialize HW tables. + */ +static void +ice_load_pkg(const struct firmware *firmware, struct ice_pf *pf) +{ + enum ice_ddp_state state = ICE_DDP_PKG_ERR; + struct device *dev = ice_pf_to_dev(pf); + struct ice_hw *hw = &pf->hw; + + /* Load DDP Package */ + if (firmware && !hw->pkg_copy) { + state = ice_copy_and_init_pkg(hw, firmware->data, + firmware->size); + ice_log_pkg_init(hw, state); + } else if (!firmware && hw->pkg_copy) { + /* Reload package during rebuild after CORER/GLOBR reset */ + state = ice_init_pkg(hw, hw->pkg_copy, hw->pkg_size); + ice_log_pkg_init(hw, state); + } else { + dev_err(dev, "The DDP package file failed to load. Entering Safe Mode.\n"); + } + + if (!ice_is_init_pkg_successful(state)) { + /* Safe Mode */ + clear_bit(ICE_FLAG_ADV_FEATURES, pf->flags); + return; + } + + /* Successful download package is the precondition for advanced + * features, hence setting the ICE_FLAG_ADV_FEATURES flag + */ + set_bit(ICE_FLAG_ADV_FEATURES, pf->flags); +} + +/** + * ice_verify_cacheline_size - verify driver's assumption of 64 Byte cache lines + * @pf: pointer to the PF structure + * + * There is no error returned here because the driver should be able to handle + * 128 Byte cache lines, so we only print a warning in case issues are seen, + * specifically with Tx. + */ +static void ice_verify_cacheline_size(struct ice_pf *pf) +{ + if (rd32(&pf->hw, GLPCI_CNF2) & GLPCI_CNF2_CACHELINE_SIZE_M) + dev_warn(ice_pf_to_dev(pf), "%d Byte cache line assumption is invalid, driver may have Tx timeouts!\n", + ICE_CACHE_LINE_BYTES); +} + +/** + * ice_send_version - update firmware with driver version + * @pf: PF struct + * + * Returns 0 on success, else error code + */ +static int ice_send_version(struct ice_pf *pf) +{ + struct ice_driver_ver dv; + + dv.major_ver = 0xff; + dv.minor_ver = 0xff; + dv.build_ver = 0xff; + dv.subbuild_ver = 0; + strscpy((char *)dv.driver_string, UTS_RELEASE, + sizeof(dv.driver_string)); + return ice_aq_send_driver_ver(&pf->hw, &dv, NULL); +} + +/** + * ice_init_fdir - Initialize flow director VSI and configuration + * @pf: pointer to the PF instance + * + * returns 0 on success, negative on error + */ +static int ice_init_fdir(struct ice_pf *pf) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_vsi *ctrl_vsi; + int err; + + /* Side Band Flow Director needs to have a control VSI. + * Allocate it and store it in the PF. + */ + ctrl_vsi = ice_ctrl_vsi_setup(pf, pf->hw.port_info); + if (!ctrl_vsi) { + dev_dbg(dev, "could not create control VSI\n"); + return -ENOMEM; + } + + err = ice_vsi_open_ctrl(ctrl_vsi); + if (err) { + dev_dbg(dev, "could not open control VSI\n"); + goto err_vsi_open; + } + + mutex_init(&pf->hw.fdir_fltr_lock); + + err = ice_fdir_create_dflt_rules(pf); + if (err) + goto err_fdir_rule; + + return 0; + +err_fdir_rule: + ice_fdir_release_flows(&pf->hw); + ice_vsi_close(ctrl_vsi); +err_vsi_open: + ice_vsi_release(ctrl_vsi); + if (pf->ctrl_vsi_idx != ICE_NO_VSI) { + pf->vsi[pf->ctrl_vsi_idx] = NULL; + pf->ctrl_vsi_idx = ICE_NO_VSI; + } + return err; +} + +/** + * ice_get_opt_fw_name - return optional firmware file name or NULL + * @pf: pointer to the PF instance + */ +static char *ice_get_opt_fw_name(struct ice_pf *pf) +{ + /* Optional firmware name same as default with additional dash + * followed by a EUI-64 identifier (PCIe Device Serial Number) + */ + struct pci_dev *pdev = pf->pdev; + char *opt_fw_filename; + u64 dsn; + + /* Determine the name of the optional file using the DSN (two + * dwords following the start of the DSN Capability). + */ + dsn = pci_get_dsn(pdev); + if (!dsn) + return NULL; + + opt_fw_filename = kzalloc(NAME_MAX, GFP_KERNEL); + if (!opt_fw_filename) + return NULL; + + snprintf(opt_fw_filename, NAME_MAX, "%sice-%016llx.pkg", + ICE_DDP_PKG_PATH, dsn); + + return opt_fw_filename; +} + +/** + * ice_request_fw - Device initialization routine + * @pf: pointer to the PF instance + */ +static void ice_request_fw(struct ice_pf *pf) +{ + char *opt_fw_filename = ice_get_opt_fw_name(pf); + const struct firmware *firmware = NULL; + struct device *dev = ice_pf_to_dev(pf); + int err = 0; + + /* optional device-specific DDP (if present) overrides the default DDP + * package file. kernel logs a debug message if the file doesn't exist, + * and warning messages for other errors. + */ + if (opt_fw_filename) { + err = firmware_request_nowarn(&firmware, opt_fw_filename, dev); + if (err) { + kfree(opt_fw_filename); + goto dflt_pkg_load; + } + + /* request for firmware was successful. Download to device */ + ice_load_pkg(firmware, pf); + kfree(opt_fw_filename); + release_firmware(firmware); + return; + } + +dflt_pkg_load: + err = request_firmware(&firmware, ICE_DDP_PKG_FILE, dev); + if (err) { + dev_err(dev, "The DDP package file was not found or could not be read. Entering Safe Mode\n"); + return; + } + + /* request for firmware was successful. Download to device */ + ice_load_pkg(firmware, pf); + release_firmware(firmware); +} + +/** + * ice_print_wake_reason - show the wake up cause in the log + * @pf: pointer to the PF struct + */ +static void ice_print_wake_reason(struct ice_pf *pf) +{ + u32 wus = pf->wakeup_reason; + const char *wake_str; + + /* if no wake event, nothing to print */ + if (!wus) + return; + + if (wus & PFPM_WUS_LNKC_M) + wake_str = "Link\n"; + else if (wus & PFPM_WUS_MAG_M) + wake_str = "Magic Packet\n"; + else if (wus & PFPM_WUS_MNG_M) + wake_str = "Management\n"; + else if (wus & PFPM_WUS_FW_RST_WK_M) + wake_str = "Firmware Reset\n"; + else + wake_str = "Unknown\n"; + + dev_info(ice_pf_to_dev(pf), "Wake reason: %s", wake_str); +} + +/** + * ice_register_netdev - register netdev and devlink port + * @pf: pointer to the PF struct + */ +static int ice_register_netdev(struct ice_pf *pf) +{ + struct ice_vsi *vsi; + int err = 0; + + vsi = ice_get_main_vsi(pf); + if (!vsi || !vsi->netdev) + return -EIO; + + err = ice_devlink_create_pf_port(pf); + if (err) + goto err_devlink_create; + + err = register_netdev(vsi->netdev); + if (err) + goto err_register_netdev; + + set_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state); + netif_carrier_off(vsi->netdev); + netif_tx_stop_all_queues(vsi->netdev); + + devlink_port_type_eth_set(&pf->devlink_port, vsi->netdev); + + return 0; +err_register_netdev: + ice_devlink_destroy_pf_port(pf); +err_devlink_create: + free_netdev(vsi->netdev); + vsi->netdev = NULL; + clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state); + return err; +} + +/** + * ice_probe - Device initialization routine + * @pdev: PCI device information struct + * @ent: entry in ice_pci_tbl + * + * Returns 0 on success, negative on failure + */ +static int +ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent) +{ + struct device *dev = &pdev->dev; + struct ice_pf *pf; + struct ice_hw *hw; + int i, err; + + if (pdev->is_virtfn) { + dev_err(dev, "can't probe a virtual function\n"); + return -EINVAL; + } + + /* when under a kdump kernel initiate a reset before enabling the + * device in order to clear out any pending DMA transactions. These + * transactions can cause some systems to machine check when doing + * the pcim_enable_device() below. + */ + if (is_kdump_kernel()) { + pci_save_state(pdev); + pci_clear_master(pdev); + err = pcie_flr(pdev); + if (err) + return err; + pci_restore_state(pdev); + } + + /* this driver uses devres, see + * Documentation/driver-api/driver-model/devres.rst + */ + err = pcim_enable_device(pdev); + if (err) + return err; + + err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), dev_driver_string(dev)); + if (err) { + dev_err(dev, "BAR0 I/O map error %d\n", err); + return err; + } + + pf = ice_allocate_pf(dev); + if (!pf) + return -ENOMEM; + + /* initialize Auxiliary index to invalid value */ + pf->aux_idx = -1; + + /* set up for high or low DMA */ + err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); + if (err) { + dev_err(dev, "DMA configuration failed: 0x%x\n", err); + return err; + } + + pci_set_master(pdev); + + pf->pdev = pdev; + pci_set_drvdata(pdev, pf); + set_bit(ICE_DOWN, pf->state); + /* Disable service task until DOWN bit is cleared */ + set_bit(ICE_SERVICE_DIS, pf->state); + + hw = &pf->hw; + hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0]; + pci_save_state(pdev); + + hw->back = pf; + hw->vendor_id = pdev->vendor; + hw->device_id = pdev->device; + pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id); + hw->subsystem_vendor_id = pdev->subsystem_vendor; + hw->subsystem_device_id = pdev->subsystem_device; + hw->bus.device = PCI_SLOT(pdev->devfn); + hw->bus.func = PCI_FUNC(pdev->devfn); + ice_set_ctrlq_len(hw); + + pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M); + +#ifndef CONFIG_DYNAMIC_DEBUG + if (debug < -1) + hw->debug_mask = debug; +#endif + + err = ice_init_hw(hw); + if (err) { + dev_err(dev, "ice_init_hw failed: %d\n", err); + err = -EIO; + goto err_exit_unroll; + } + + ice_init_feature_support(pf); + + ice_request_fw(pf); + + /* if ice_request_fw fails, ICE_FLAG_ADV_FEATURES bit won't be + * set in pf->state, which will cause ice_is_safe_mode to return + * true + */ + if (ice_is_safe_mode(pf)) { + /* we already got function/device capabilities but these don't + * reflect what the driver needs to do in safe mode. Instead of + * adding conditional logic everywhere to ignore these + * device/function capabilities, override them. + */ + ice_set_safe_mode_caps(hw); + } + + err = ice_init_pf(pf); + if (err) { + dev_err(dev, "ice_init_pf failed: %d\n", err); + goto err_init_pf_unroll; + } + + ice_devlink_init_regions(pf); + + pf->hw.udp_tunnel_nic.set_port = ice_udp_tunnel_set_port; + pf->hw.udp_tunnel_nic.unset_port = ice_udp_tunnel_unset_port; + pf->hw.udp_tunnel_nic.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP; + pf->hw.udp_tunnel_nic.shared = &pf->hw.udp_tunnel_shared; + i = 0; + if (pf->hw.tnl.valid_count[TNL_VXLAN]) { + pf->hw.udp_tunnel_nic.tables[i].n_entries = + pf->hw.tnl.valid_count[TNL_VXLAN]; + pf->hw.udp_tunnel_nic.tables[i].tunnel_types = + UDP_TUNNEL_TYPE_VXLAN; + i++; + } + if (pf->hw.tnl.valid_count[TNL_GENEVE]) { + pf->hw.udp_tunnel_nic.tables[i].n_entries = + pf->hw.tnl.valid_count[TNL_GENEVE]; + pf->hw.udp_tunnel_nic.tables[i].tunnel_types = + UDP_TUNNEL_TYPE_GENEVE; + i++; + } + + pf->num_alloc_vsi = hw->func_caps.guar_num_vsi; + if (!pf->num_alloc_vsi) { + err = -EIO; + goto err_init_pf_unroll; + } + if (pf->num_alloc_vsi > UDP_TUNNEL_NIC_MAX_SHARING_DEVICES) { + dev_warn(&pf->pdev->dev, + "limiting the VSI count due to UDP tunnel limitation %d > %d\n", + pf->num_alloc_vsi, UDP_TUNNEL_NIC_MAX_SHARING_DEVICES); + pf->num_alloc_vsi = UDP_TUNNEL_NIC_MAX_SHARING_DEVICES; + } + + pf->vsi = devm_kcalloc(dev, pf->num_alloc_vsi, sizeof(*pf->vsi), + GFP_KERNEL); + if (!pf->vsi) { + err = -ENOMEM; + goto err_init_pf_unroll; + } + + err = ice_init_interrupt_scheme(pf); + if (err) { + dev_err(dev, "ice_init_interrupt_scheme failed: %d\n", err); + err = -EIO; + goto err_init_vsi_unroll; + } + + /* In case of MSIX we are going to setup the misc vector right here + * to handle admin queue events etc. In case of legacy and MSI + * the misc functionality and queue processing is combined in + * the same vector and that gets setup at open. + */ + err = ice_req_irq_msix_misc(pf); + if (err) { + dev_err(dev, "setup of misc vector failed: %d\n", err); + goto err_init_interrupt_unroll; + } + + /* create switch struct for the switch element created by FW on boot */ + pf->first_sw = devm_kzalloc(dev, sizeof(*pf->first_sw), GFP_KERNEL); + if (!pf->first_sw) { + err = -ENOMEM; + goto err_msix_misc_unroll; + } + + if (hw->evb_veb) + pf->first_sw->bridge_mode = BRIDGE_MODE_VEB; + else + pf->first_sw->bridge_mode = BRIDGE_MODE_VEPA; + + pf->first_sw->pf = pf; + + /* record the sw_id available for later use */ + pf->first_sw->sw_id = hw->port_info->sw_id; + + err = ice_setup_pf_sw(pf); + if (err) { + dev_err(dev, "probe failed due to setup PF switch: %d\n", err); + goto err_alloc_sw_unroll; + } + + clear_bit(ICE_SERVICE_DIS, pf->state); + + /* tell the firmware we are up */ + err = ice_send_version(pf); + if (err) { + dev_err(dev, "probe failed sending driver version %s. error: %d\n", + UTS_RELEASE, err); + goto err_send_version_unroll; + } + + /* since everything is good, start the service timer */ + mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period)); + + err = ice_init_link_events(pf->hw.port_info); + if (err) { + dev_err(dev, "ice_init_link_events failed: %d\n", err); + goto err_send_version_unroll; + } + + /* not a fatal error if this fails */ + err = ice_init_nvm_phy_type(pf->hw.port_info); + if (err) + dev_err(dev, "ice_init_nvm_phy_type failed: %d\n", err); + + /* not a fatal error if this fails */ + err = ice_update_link_info(pf->hw.port_info); + if (err) + dev_err(dev, "ice_update_link_info failed: %d\n", err); + + ice_init_link_dflt_override(pf->hw.port_info); + + ice_check_link_cfg_err(pf, + pf->hw.port_info->phy.link_info.link_cfg_err); + + /* if media available, initialize PHY settings */ + if (pf->hw.port_info->phy.link_info.link_info & + ICE_AQ_MEDIA_AVAILABLE) { + /* not a fatal error if this fails */ + err = ice_init_phy_user_cfg(pf->hw.port_info); + if (err) + dev_err(dev, "ice_init_phy_user_cfg failed: %d\n", err); + + if (!test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags)) { + struct ice_vsi *vsi = ice_get_main_vsi(pf); + + if (vsi) + ice_configure_phy(vsi); + } + } else { + set_bit(ICE_FLAG_NO_MEDIA, pf->flags); + } + + ice_verify_cacheline_size(pf); + + /* Save wakeup reason register for later use */ + pf->wakeup_reason = rd32(hw, PFPM_WUS); + + /* check for a power management event */ + ice_print_wake_reason(pf); + + /* clear wake status, all bits */ + wr32(hw, PFPM_WUS, U32_MAX); + + /* Disable WoL at init, wait for user to enable */ + device_set_wakeup_enable(dev, false); + + if (ice_is_safe_mode(pf)) { + ice_set_safe_mode_vlan_cfg(pf); + goto probe_done; + } + + /* initialize DDP driven features */ + if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) + ice_ptp_init(pf); + + if (ice_is_feature_supported(pf, ICE_F_GNSS)) + ice_gnss_init(pf); + + /* Note: Flow director init failure is non-fatal to load */ + if (ice_init_fdir(pf)) + dev_err(dev, "could not initialize flow director\n"); + + /* Note: DCB init failure is non-fatal to load */ + if (ice_init_pf_dcb(pf, false)) { + clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags); + clear_bit(ICE_FLAG_DCB_ENA, pf->flags); + } else { + ice_cfg_lldp_mib_change(&pf->hw, true); + } + + if (ice_init_lag(pf)) + dev_warn(dev, "Failed to init link aggregation support\n"); + + /* print PCI link speed and width */ + pcie_print_link_status(pf->pdev); + +probe_done: + err = ice_register_netdev(pf); + if (err) + goto err_netdev_reg; + + err = ice_devlink_register_params(pf); + if (err) + goto err_netdev_reg; + + /* ready to go, so clear down state bit */ + clear_bit(ICE_DOWN, pf->state); + if (ice_is_rdma_ena(pf)) { + pf->aux_idx = ida_alloc(&ice_aux_ida, GFP_KERNEL); + if (pf->aux_idx < 0) { + dev_err(dev, "Failed to allocate device ID for AUX driver\n"); + err = -ENOMEM; + goto err_devlink_reg_param; + } + + err = ice_init_rdma(pf); + if (err) { + dev_err(dev, "Failed to initialize RDMA: %d\n", err); + err = -EIO; + goto err_init_aux_unroll; + } + } else { + dev_warn(dev, "RDMA is not supported on this device\n"); + } + + ice_devlink_register(pf); + return 0; + +err_init_aux_unroll: + pf->adev = NULL; + ida_free(&ice_aux_ida, pf->aux_idx); +err_devlink_reg_param: + ice_devlink_unregister_params(pf); +err_netdev_reg: +err_send_version_unroll: + ice_vsi_release_all(pf); +err_alloc_sw_unroll: + set_bit(ICE_SERVICE_DIS, pf->state); + set_bit(ICE_DOWN, pf->state); + devm_kfree(dev, pf->first_sw); +err_msix_misc_unroll: + ice_free_irq_msix_misc(pf); +err_init_interrupt_unroll: + ice_clear_interrupt_scheme(pf); +err_init_vsi_unroll: + devm_kfree(dev, pf->vsi); +err_init_pf_unroll: + ice_deinit_pf(pf); + ice_devlink_destroy_regions(pf); + ice_deinit_hw(hw); +err_exit_unroll: + pci_disable_device(pdev); + return err; +} + +/** + * ice_set_wake - enable or disable Wake on LAN + * @pf: pointer to the PF struct + * + * Simple helper for WoL control + */ +static void ice_set_wake(struct ice_pf *pf) +{ + struct ice_hw *hw = &pf->hw; + bool wol = pf->wol_ena; + + /* clear wake state, otherwise new wake events won't fire */ + wr32(hw, PFPM_WUS, U32_MAX); + + /* enable / disable APM wake up, no RMW needed */ + wr32(hw, PFPM_APM, wol ? PFPM_APM_APME_M : 0); + + /* set magic packet filter enabled */ + wr32(hw, PFPM_WUFC, wol ? PFPM_WUFC_MAG_M : 0); +} + +/** + * ice_setup_mc_magic_wake - setup device to wake on multicast magic packet + * @pf: pointer to the PF struct + * + * Issue firmware command to enable multicast magic wake, making + * sure that any locally administered address (LAA) is used for + * wake, and that PF reset doesn't undo the LAA. + */ +static void ice_setup_mc_magic_wake(struct ice_pf *pf) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_hw *hw = &pf->hw; + u8 mac_addr[ETH_ALEN]; + struct ice_vsi *vsi; + int status; + u8 flags; + + if (!pf->wol_ena) + return; + + vsi = ice_get_main_vsi(pf); + if (!vsi) + return; + + /* Get current MAC address in case it's an LAA */ + if (vsi->netdev) + ether_addr_copy(mac_addr, vsi->netdev->dev_addr); + else + ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr); + + flags = ICE_AQC_MAN_MAC_WR_MC_MAG_EN | + ICE_AQC_MAN_MAC_UPDATE_LAA_WOL | + ICE_AQC_MAN_MAC_WR_WOL_LAA_PFR_KEEP; + + status = ice_aq_manage_mac_write(hw, mac_addr, flags, NULL); + if (status) + dev_err(dev, "Failed to enable Multicast Magic Packet wake, err %d aq_err %s\n", + status, ice_aq_str(hw->adminq.sq_last_status)); +} + +/** + * ice_remove - Device removal routine + * @pdev: PCI device information struct + */ +static void ice_remove(struct pci_dev *pdev) +{ + struct ice_pf *pf = pci_get_drvdata(pdev); + int i; + + ice_devlink_unregister(pf); + for (i = 0; i < ICE_MAX_RESET_WAIT; i++) { + if (!ice_is_reset_in_progress(pf->state)) + break; + msleep(100); + } + + ice_tc_indir_block_remove(pf); + + if (test_bit(ICE_FLAG_SRIOV_ENA, pf->flags)) { + set_bit(ICE_VF_RESETS_DISABLED, pf->state); + ice_free_vfs(pf); + } + + ice_service_task_stop(pf); + + ice_aq_cancel_waiting_tasks(pf); + ice_unplug_aux_dev(pf); + if (pf->aux_idx >= 0) + ida_free(&ice_aux_ida, pf->aux_idx); + ice_devlink_unregister_params(pf); + set_bit(ICE_DOWN, pf->state); + + ice_deinit_lag(pf); + if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) + ice_ptp_release(pf); + if (ice_is_feature_supported(pf, ICE_F_GNSS)) + ice_gnss_exit(pf); + if (!ice_is_safe_mode(pf)) + ice_remove_arfs(pf); + ice_setup_mc_magic_wake(pf); + ice_vsi_release_all(pf); + mutex_destroy(&(&pf->hw)->fdir_fltr_lock); + ice_set_wake(pf); + ice_free_irq_msix_misc(pf); + ice_for_each_vsi(pf, i) { + if (!pf->vsi[i]) + continue; + ice_vsi_free_q_vectors(pf->vsi[i]); + } + ice_deinit_pf(pf); + ice_devlink_destroy_regions(pf); + ice_deinit_hw(&pf->hw); + + /* Issue a PFR as part of the prescribed driver unload flow. Do not + * do it via ice_schedule_reset() since there is no need to rebuild + * and the service task is already stopped. + */ + ice_reset(&pf->hw, ICE_RESET_PFR); + pci_wait_for_pending_transaction(pdev); + ice_clear_interrupt_scheme(pf); + pci_disable_device(pdev); +} + +/** + * ice_shutdown - PCI callback for shutting down device + * @pdev: PCI device information struct + */ +static void ice_shutdown(struct pci_dev *pdev) +{ + struct ice_pf *pf = pci_get_drvdata(pdev); + + ice_remove(pdev); + + if (system_state == SYSTEM_POWER_OFF) { + pci_wake_from_d3(pdev, pf->wol_ena); + pci_set_power_state(pdev, PCI_D3hot); + } +} + +#ifdef CONFIG_PM +/** + * ice_prepare_for_shutdown - prep for PCI shutdown + * @pf: board private structure + * + * Inform or close all dependent features in prep for PCI device shutdown + */ +static void ice_prepare_for_shutdown(struct ice_pf *pf) +{ + struct ice_hw *hw = &pf->hw; + u32 v; + + /* Notify VFs of impending reset */ + if (ice_check_sq_alive(hw, &hw->mailboxq)) + ice_vc_notify_reset(pf); + + dev_dbg(ice_pf_to_dev(pf), "Tearing down internal switch for shutdown\n"); + + /* disable the VSIs and their queues that are not already DOWN */ + ice_pf_dis_all_vsi(pf, false); + + ice_for_each_vsi(pf, v) + if (pf->vsi[v]) + pf->vsi[v]->vsi_num = 0; + + ice_shutdown_all_ctrlq(hw); +} + +/** + * ice_reinit_interrupt_scheme - Reinitialize interrupt scheme + * @pf: board private structure to reinitialize + * + * This routine reinitialize interrupt scheme that was cleared during + * power management suspend callback. + * + * This should be called during resume routine to re-allocate the q_vectors + * and reacquire interrupts. + */ +static int ice_reinit_interrupt_scheme(struct ice_pf *pf) +{ + struct device *dev = ice_pf_to_dev(pf); + int ret, v; + + /* Since we clear MSIX flag during suspend, we need to + * set it back during resume... + */ + + ret = ice_init_interrupt_scheme(pf); + if (ret) { + dev_err(dev, "Failed to re-initialize interrupt %d\n", ret); + return ret; + } + + /* Remap vectors and rings, after successful re-init interrupts */ + ice_for_each_vsi(pf, v) { + if (!pf->vsi[v]) + continue; + + ret = ice_vsi_alloc_q_vectors(pf->vsi[v]); + if (ret) + goto err_reinit; + ice_vsi_map_rings_to_vectors(pf->vsi[v]); + } + + ret = ice_req_irq_msix_misc(pf); + if (ret) { + dev_err(dev, "Setting up misc vector failed after device suspend %d\n", + ret); + goto err_reinit; + } + + return 0; + +err_reinit: + while (v--) + if (pf->vsi[v]) + ice_vsi_free_q_vectors(pf->vsi[v]); + + return ret; +} + +/** + * ice_suspend + * @dev: generic device information structure + * + * Power Management callback to quiesce the device and prepare + * for D3 transition. + */ +static int __maybe_unused ice_suspend(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct ice_pf *pf; + int disabled, v; + + pf = pci_get_drvdata(pdev); + + if (!ice_pf_state_is_nominal(pf)) { + dev_err(dev, "Device is not ready, no need to suspend it\n"); + return -EBUSY; + } + + /* Stop watchdog tasks until resume completion. + * Even though it is most likely that the service task is + * disabled if the device is suspended or down, the service task's + * state is controlled by a different state bit, and we should + * store and honor whatever state that bit is in at this point. + */ + disabled = ice_service_task_stop(pf); + + ice_unplug_aux_dev(pf); + + /* Already suspended?, then there is nothing to do */ + if (test_and_set_bit(ICE_SUSPENDED, pf->state)) { + if (!disabled) + ice_service_task_restart(pf); + return 0; + } + + if (test_bit(ICE_DOWN, pf->state) || + ice_is_reset_in_progress(pf->state)) { + dev_err(dev, "can't suspend device in reset or already down\n"); + if (!disabled) + ice_service_task_restart(pf); + return 0; + } + + ice_setup_mc_magic_wake(pf); + + ice_prepare_for_shutdown(pf); + + ice_set_wake(pf); + + /* Free vectors, clear the interrupt scheme and release IRQs + * for proper hibernation, especially with large number of CPUs. + * Otherwise hibernation might fail when mapping all the vectors back + * to CPU0. + */ + ice_free_irq_msix_misc(pf); + ice_for_each_vsi(pf, v) { + if (!pf->vsi[v]) + continue; + ice_vsi_free_q_vectors(pf->vsi[v]); + } + ice_clear_interrupt_scheme(pf); + + pci_save_state(pdev); + pci_wake_from_d3(pdev, pf->wol_ena); + pci_set_power_state(pdev, PCI_D3hot); + return 0; +} + +/** + * ice_resume - PM callback for waking up from D3 + * @dev: generic device information structure + */ +static int __maybe_unused ice_resume(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + enum ice_reset_req reset_type; + struct ice_pf *pf; + struct ice_hw *hw; + int ret; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + pci_save_state(pdev); + + if (!pci_device_is_present(pdev)) + return -ENODEV; + + ret = pci_enable_device_mem(pdev); + if (ret) { + dev_err(dev, "Cannot enable device after suspend\n"); + return ret; + } + + pf = pci_get_drvdata(pdev); + hw = &pf->hw; + + pf->wakeup_reason = rd32(hw, PFPM_WUS); + ice_print_wake_reason(pf); + + /* We cleared the interrupt scheme when we suspended, so we need to + * restore it now to resume device functionality. + */ + ret = ice_reinit_interrupt_scheme(pf); + if (ret) + dev_err(dev, "Cannot restore interrupt scheme: %d\n", ret); + + clear_bit(ICE_DOWN, pf->state); + /* Now perform PF reset and rebuild */ + reset_type = ICE_RESET_PFR; + /* re-enable service task for reset, but allow reset to schedule it */ + clear_bit(ICE_SERVICE_DIS, pf->state); + + if (ice_schedule_reset(pf, reset_type)) + dev_err(dev, "Reset during resume failed.\n"); + + clear_bit(ICE_SUSPENDED, pf->state); + ice_service_task_restart(pf); + + /* Restart the service task */ + mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period)); + + return 0; +} +#endif /* CONFIG_PM */ + +/** + * ice_pci_err_detected - warning that PCI error has been detected + * @pdev: PCI device information struct + * @err: the type of PCI error + * + * Called to warn that something happened on the PCI bus and the error handling + * is in progress. Allows the driver to gracefully prepare/handle PCI errors. + */ +static pci_ers_result_t +ice_pci_err_detected(struct pci_dev *pdev, pci_channel_state_t err) +{ + struct ice_pf *pf = pci_get_drvdata(pdev); + + if (!pf) { + dev_err(&pdev->dev, "%s: unrecoverable device error %d\n", + __func__, err); + return PCI_ERS_RESULT_DISCONNECT; + } + + if (!test_bit(ICE_SUSPENDED, pf->state)) { + ice_service_task_stop(pf); + + if (!test_bit(ICE_PREPARED_FOR_RESET, pf->state)) { + set_bit(ICE_PFR_REQ, pf->state); + ice_prepare_for_reset(pf, ICE_RESET_PFR); + } + } + + return PCI_ERS_RESULT_NEED_RESET; +} + +/** + * ice_pci_err_slot_reset - a PCI slot reset has just happened + * @pdev: PCI device information struct + * + * Called to determine if the driver can recover from the PCI slot reset by + * using a register read to determine if the device is recoverable. + */ +static pci_ers_result_t ice_pci_err_slot_reset(struct pci_dev *pdev) +{ + struct ice_pf *pf = pci_get_drvdata(pdev); + pci_ers_result_t result; + int err; + u32 reg; + + err = pci_enable_device_mem(pdev); + if (err) { + dev_err(&pdev->dev, "Cannot re-enable PCI device after reset, error %d\n", + err); + result = PCI_ERS_RESULT_DISCONNECT; + } else { + pci_set_master(pdev); + pci_restore_state(pdev); + pci_save_state(pdev); + pci_wake_from_d3(pdev, false); + + /* Check for life */ + reg = rd32(&pf->hw, GLGEN_RTRIG); + if (!reg) + result = PCI_ERS_RESULT_RECOVERED; + else + result = PCI_ERS_RESULT_DISCONNECT; + } + + return result; +} + +/** + * ice_pci_err_resume - restart operations after PCI error recovery + * @pdev: PCI device information struct + * + * Called to allow the driver to bring things back up after PCI error and/or + * reset recovery have finished + */ +static void ice_pci_err_resume(struct pci_dev *pdev) +{ + struct ice_pf *pf = pci_get_drvdata(pdev); + + if (!pf) { + dev_err(&pdev->dev, "%s failed, device is unrecoverable\n", + __func__); + return; + } + + if (test_bit(ICE_SUSPENDED, pf->state)) { + dev_dbg(&pdev->dev, "%s failed to resume normal operations!\n", + __func__); + return; + } + + ice_restore_all_vfs_msi_state(pdev); + + ice_do_reset(pf, ICE_RESET_PFR); + ice_service_task_restart(pf); + mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period)); +} + +/** + * ice_pci_err_reset_prepare - prepare device driver for PCI reset + * @pdev: PCI device information struct + */ +static void ice_pci_err_reset_prepare(struct pci_dev *pdev) +{ + struct ice_pf *pf = pci_get_drvdata(pdev); + + if (!test_bit(ICE_SUSPENDED, pf->state)) { + ice_service_task_stop(pf); + + if (!test_bit(ICE_PREPARED_FOR_RESET, pf->state)) { + set_bit(ICE_PFR_REQ, pf->state); + ice_prepare_for_reset(pf, ICE_RESET_PFR); + } + } +} + +/** + * ice_pci_err_reset_done - PCI reset done, device driver reset can begin + * @pdev: PCI device information struct + */ +static void ice_pci_err_reset_done(struct pci_dev *pdev) +{ + ice_pci_err_resume(pdev); +} + +/* ice_pci_tbl - PCI Device ID Table + * + * Wildcard entries (PCI_ANY_ID) should come last + * Last entry must be all 0s + * + * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, + * Class, Class Mask, private data (not used) } + */ +static const struct pci_device_id ice_pci_tbl[] = { + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_BACKPLANE), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_QSFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_SFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_BACKPLANE), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_QSFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_SFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_BACKPLANE), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_QSFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_SFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_10G_BASE_T), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_SGMII), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_BACKPLANE), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_QSFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_10G_BASE_T), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SGMII), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_BACKPLANE), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_10G_BASE_T), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SGMII), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_BACKPLANE), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_SFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_10G_BASE_T), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_1GBE), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_QSFP), 0 }, + { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822_SI_DFLT), 0 }, + /* required last entry */ + { 0, } +}; +MODULE_DEVICE_TABLE(pci, ice_pci_tbl); + +static __maybe_unused SIMPLE_DEV_PM_OPS(ice_pm_ops, ice_suspend, ice_resume); + +static const struct pci_error_handlers ice_pci_err_handler = { + .error_detected = ice_pci_err_detected, + .slot_reset = ice_pci_err_slot_reset, + .reset_prepare = ice_pci_err_reset_prepare, + .reset_done = ice_pci_err_reset_done, + .resume = ice_pci_err_resume +}; + +static struct pci_driver ice_driver = { + .name = KBUILD_MODNAME, + .id_table = ice_pci_tbl, + .probe = ice_probe, + .remove = ice_remove, +#ifdef CONFIG_PM + .driver.pm = &ice_pm_ops, +#endif /* CONFIG_PM */ + .shutdown = ice_shutdown, + .sriov_configure = ice_sriov_configure, + .err_handler = &ice_pci_err_handler +}; + +/** + * ice_module_init - Driver registration routine + * + * ice_module_init is the first routine called when the driver is + * loaded. All it does is register with the PCI subsystem. + */ +static int __init ice_module_init(void) +{ + int status; + + pr_info("%s\n", ice_driver_string); + pr_info("%s\n", ice_copyright); + + ice_wq = alloc_workqueue("%s", 0, 0, KBUILD_MODNAME); + if (!ice_wq) { + pr_err("Failed to create workqueue\n"); + return -ENOMEM; + } + + status = pci_register_driver(&ice_driver); + if (status) { + pr_err("failed to register PCI driver, err %d\n", status); + destroy_workqueue(ice_wq); + } + + return status; +} +module_init(ice_module_init); + +/** + * ice_module_exit - Driver exit cleanup routine + * + * ice_module_exit is called just before the driver is removed + * from memory. + */ +static void __exit ice_module_exit(void) +{ + pci_unregister_driver(&ice_driver); + destroy_workqueue(ice_wq); + pr_info("module unloaded\n"); +} +module_exit(ice_module_exit); + +/** + * ice_set_mac_address - NDO callback to set MAC address + * @netdev: network interface device structure + * @pi: pointer to an address structure + * + * Returns 0 on success, negative on failure + */ +static int ice_set_mac_address(struct net_device *netdev, void *pi) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + struct ice_pf *pf = vsi->back; + struct ice_hw *hw = &pf->hw; + struct sockaddr *addr = pi; + u8 old_mac[ETH_ALEN]; + u8 flags = 0; + u8 *mac; + int err; + + mac = (u8 *)addr->sa_data; + + if (!is_valid_ether_addr(mac)) + return -EADDRNOTAVAIL; + + if (ether_addr_equal(netdev->dev_addr, mac)) { + netdev_dbg(netdev, "already using mac %pM\n", mac); + return 0; + } + + if (test_bit(ICE_DOWN, pf->state) || + ice_is_reset_in_progress(pf->state)) { + netdev_err(netdev, "can't set mac %pM. device not ready\n", + mac); + return -EBUSY; + } + + if (ice_chnl_dmac_fltr_cnt(pf)) { + netdev_err(netdev, "can't set mac %pM. Device has tc-flower filters, delete all of them and try again\n", + mac); + return -EAGAIN; + } + + netif_addr_lock_bh(netdev); + ether_addr_copy(old_mac, netdev->dev_addr); + /* change the netdev's MAC address */ + eth_hw_addr_set(netdev, mac); + netif_addr_unlock_bh(netdev); + + /* Clean up old MAC filter. Not an error if old filter doesn't exist */ + err = ice_fltr_remove_mac(vsi, old_mac, ICE_FWD_TO_VSI); + if (err && err != -ENOENT) { + err = -EADDRNOTAVAIL; + goto err_update_filters; + } + + /* Add filter for new MAC. If filter exists, return success */ + err = ice_fltr_add_mac(vsi, mac, ICE_FWD_TO_VSI); + if (err == -EEXIST) { + /* Although this MAC filter is already present in hardware it's + * possible in some cases (e.g. bonding) that dev_addr was + * modified outside of the driver and needs to be restored back + * to this value. + */ + netdev_dbg(netdev, "filter for MAC %pM already exists\n", mac); + + return 0; + } else if (err) { + /* error if the new filter addition failed */ + err = -EADDRNOTAVAIL; + } + +err_update_filters: + if (err) { + netdev_err(netdev, "can't set MAC %pM. filter update failed\n", + mac); + netif_addr_lock_bh(netdev); + eth_hw_addr_set(netdev, old_mac); + netif_addr_unlock_bh(netdev); + return err; + } + + netdev_dbg(vsi->netdev, "updated MAC address to %pM\n", + netdev->dev_addr); + + /* write new MAC address to the firmware */ + flags = ICE_AQC_MAN_MAC_UPDATE_LAA_WOL; + err = ice_aq_manage_mac_write(hw, mac, flags, NULL); + if (err) { + netdev_err(netdev, "can't set MAC %pM. write to firmware failed error %d\n", + mac, err); + } + return 0; +} + +/** + * ice_set_rx_mode - NDO callback to set the netdev filters + * @netdev: network interface device structure + */ +static void ice_set_rx_mode(struct net_device *netdev) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + + if (!vsi) + return; + + /* Set the flags to synchronize filters + * ndo_set_rx_mode may be triggered even without a change in netdev + * flags + */ + set_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state); + set_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state); + set_bit(ICE_FLAG_FLTR_SYNC, vsi->back->flags); + + /* schedule our worker thread which will take care of + * applying the new filter changes + */ + ice_service_task_schedule(vsi->back); +} + +/** + * ice_set_tx_maxrate - NDO callback to set the maximum per-queue bitrate + * @netdev: network interface device structure + * @queue_index: Queue ID + * @maxrate: maximum bandwidth in Mbps + */ +static int +ice_set_tx_maxrate(struct net_device *netdev, int queue_index, u32 maxrate) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + u16 q_handle; + int status; + u8 tc; + + /* Validate maxrate requested is within permitted range */ + if (maxrate && (maxrate > (ICE_SCHED_MAX_BW / 1000))) { + netdev_err(netdev, "Invalid max rate %d specified for the queue %d\n", + maxrate, queue_index); + return -EINVAL; + } + + q_handle = vsi->tx_rings[queue_index]->q_handle; + tc = ice_dcb_get_tc(vsi, queue_index); + + /* Set BW back to default, when user set maxrate to 0 */ + if (!maxrate) + status = ice_cfg_q_bw_dflt_lmt(vsi->port_info, vsi->idx, tc, + q_handle, ICE_MAX_BW); + else + status = ice_cfg_q_bw_lmt(vsi->port_info, vsi->idx, tc, + q_handle, ICE_MAX_BW, maxrate * 1000); + if (status) + netdev_err(netdev, "Unable to set Tx max rate, error %d\n", + status); + + return status; +} + +/** + * ice_fdb_add - add an entry to the hardware database + * @ndm: the input from the stack + * @tb: pointer to array of nladdr (unused) + * @dev: the net device pointer + * @addr: the MAC address entry being added + * @vid: VLAN ID + * @flags: instructions from stack about fdb operation + * @extack: netlink extended ack + */ +static int +ice_fdb_add(struct ndmsg *ndm, struct nlattr __always_unused *tb[], + struct net_device *dev, const unsigned char *addr, u16 vid, + u16 flags, struct netlink_ext_ack __always_unused *extack) +{ + int err; + + if (vid) { + netdev_err(dev, "VLANs aren't supported yet for dev_uc|mc_add()\n"); + return -EINVAL; + } + if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) { + netdev_err(dev, "FDB only supports static addresses\n"); + return -EINVAL; + } + + if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) + err = dev_uc_add_excl(dev, addr); + else if (is_multicast_ether_addr(addr)) + err = dev_mc_add_excl(dev, addr); + else + err = -EINVAL; + + /* Only return duplicate errors if NLM_F_EXCL is set */ + if (err == -EEXIST && !(flags & NLM_F_EXCL)) + err = 0; + + return err; +} + +/** + * ice_fdb_del - delete an entry from the hardware database + * @ndm: the input from the stack + * @tb: pointer to array of nladdr (unused) + * @dev: the net device pointer + * @addr: the MAC address entry being added + * @vid: VLAN ID + * @extack: netlink extended ack + */ +static int +ice_fdb_del(struct ndmsg *ndm, __always_unused struct nlattr *tb[], + struct net_device *dev, const unsigned char *addr, + __always_unused u16 vid, struct netlink_ext_ack *extack) +{ + int err; + + if (ndm->ndm_state & NUD_PERMANENT) { + netdev_err(dev, "FDB only supports static addresses\n"); + return -EINVAL; + } + + if (is_unicast_ether_addr(addr)) + err = dev_uc_del(dev, addr); + else if (is_multicast_ether_addr(addr)) + err = dev_mc_del(dev, addr); + else + err = -EINVAL; + + return err; +} + +#define NETIF_VLAN_OFFLOAD_FEATURES (NETIF_F_HW_VLAN_CTAG_RX | \ + NETIF_F_HW_VLAN_CTAG_TX | \ + NETIF_F_HW_VLAN_STAG_RX | \ + NETIF_F_HW_VLAN_STAG_TX) + +#define NETIF_VLAN_STRIPPING_FEATURES (NETIF_F_HW_VLAN_CTAG_RX | \ + NETIF_F_HW_VLAN_STAG_RX) + +#define NETIF_VLAN_FILTERING_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \ + NETIF_F_HW_VLAN_STAG_FILTER) + +/** + * ice_fix_features - fix the netdev features flags based on device limitations + * @netdev: ptr to the netdev that flags are being fixed on + * @features: features that need to be checked and possibly fixed + * + * Make sure any fixups are made to features in this callback. This enables the + * driver to not have to check unsupported configurations throughout the driver + * because that's the responsiblity of this callback. + * + * Single VLAN Mode (SVM) Supported Features: + * NETIF_F_HW_VLAN_CTAG_FILTER + * NETIF_F_HW_VLAN_CTAG_RX + * NETIF_F_HW_VLAN_CTAG_TX + * + * Double VLAN Mode (DVM) Supported Features: + * NETIF_F_HW_VLAN_CTAG_FILTER + * NETIF_F_HW_VLAN_CTAG_RX + * NETIF_F_HW_VLAN_CTAG_TX + * + * NETIF_F_HW_VLAN_STAG_FILTER + * NETIF_HW_VLAN_STAG_RX + * NETIF_HW_VLAN_STAG_TX + * + * Features that need fixing: + * Cannot simultaneously enable CTAG and STAG stripping and/or insertion. + * These are mutually exlusive as the VSI context cannot support multiple + * VLAN ethertypes simultaneously for stripping and/or insertion. If this + * is not done, then default to clearing the requested STAG offload + * settings. + * + * All supported filtering has to be enabled or disabled together. For + * example, in DVM, CTAG and STAG filtering have to be enabled and disabled + * together. If this is not done, then default to VLAN filtering disabled. + * These are mutually exclusive as there is currently no way to + * enable/disable VLAN filtering based on VLAN ethertype when using VLAN + * prune rules. + */ +static netdev_features_t +ice_fix_features(struct net_device *netdev, netdev_features_t features) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + netdev_features_t req_vlan_fltr, cur_vlan_fltr; + bool cur_ctag, cur_stag, req_ctag, req_stag; + + cur_vlan_fltr = netdev->features & NETIF_VLAN_FILTERING_FEATURES; + cur_ctag = cur_vlan_fltr & NETIF_F_HW_VLAN_CTAG_FILTER; + cur_stag = cur_vlan_fltr & NETIF_F_HW_VLAN_STAG_FILTER; + + req_vlan_fltr = features & NETIF_VLAN_FILTERING_FEATURES; + req_ctag = req_vlan_fltr & NETIF_F_HW_VLAN_CTAG_FILTER; + req_stag = req_vlan_fltr & NETIF_F_HW_VLAN_STAG_FILTER; + + if (req_vlan_fltr != cur_vlan_fltr) { + if (ice_is_dvm_ena(&np->vsi->back->hw)) { + if (req_ctag && req_stag) { + features |= NETIF_VLAN_FILTERING_FEATURES; + } else if (!req_ctag && !req_stag) { + features &= ~NETIF_VLAN_FILTERING_FEATURES; + } else if ((!cur_ctag && req_ctag && !cur_stag) || + (!cur_stag && req_stag && !cur_ctag)) { + features |= NETIF_VLAN_FILTERING_FEATURES; + netdev_warn(netdev, "802.1Q and 802.1ad VLAN filtering must be either both on or both off. VLAN filtering has been enabled for both types.\n"); + } else if ((cur_ctag && !req_ctag && cur_stag) || + (cur_stag && !req_stag && cur_ctag)) { + features &= ~NETIF_VLAN_FILTERING_FEATURES; + netdev_warn(netdev, "802.1Q and 802.1ad VLAN filtering must be either both on or both off. VLAN filtering has been disabled for both types.\n"); + } + } else { + if (req_vlan_fltr & NETIF_F_HW_VLAN_STAG_FILTER) + netdev_warn(netdev, "cannot support requested 802.1ad filtering setting in SVM mode\n"); + + if (req_vlan_fltr & NETIF_F_HW_VLAN_CTAG_FILTER) + features |= NETIF_F_HW_VLAN_CTAG_FILTER; + } + } + + if ((features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX)) && + (features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX))) { + netdev_warn(netdev, "cannot support CTAG and STAG VLAN stripping and/or insertion simultaneously since CTAG and STAG offloads are mutually exclusive, clearing STAG offload settings\n"); + features &= ~(NETIF_F_HW_VLAN_STAG_RX | + NETIF_F_HW_VLAN_STAG_TX); + } + + if (!(netdev->features & NETIF_F_RXFCS) && + (features & NETIF_F_RXFCS) && + (features & NETIF_VLAN_STRIPPING_FEATURES) && + !ice_vsi_has_non_zero_vlans(np->vsi)) { + netdev_warn(netdev, "Disabling VLAN stripping as FCS/CRC stripping is also disabled and there is no VLAN configured\n"); + features &= ~NETIF_VLAN_STRIPPING_FEATURES; + } + + return features; +} + +/** + * ice_set_vlan_offload_features - set VLAN offload features for the PF VSI + * @vsi: PF's VSI + * @features: features used to determine VLAN offload settings + * + * First, determine the vlan_ethertype based on the VLAN offload bits in + * features. Then determine if stripping and insertion should be enabled or + * disabled. Finally enable or disable VLAN stripping and insertion. + */ +static int +ice_set_vlan_offload_features(struct ice_vsi *vsi, netdev_features_t features) +{ + bool enable_stripping = true, enable_insertion = true; + struct ice_vsi_vlan_ops *vlan_ops; + int strip_err = 0, insert_err = 0; + u16 vlan_ethertype = 0; + + vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); + + if (features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX)) + vlan_ethertype = ETH_P_8021AD; + else if (features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX)) + vlan_ethertype = ETH_P_8021Q; + + if (!(features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_CTAG_RX))) + enable_stripping = false; + if (!(features & (NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_CTAG_TX))) + enable_insertion = false; + + if (enable_stripping) + strip_err = vlan_ops->ena_stripping(vsi, vlan_ethertype); + else + strip_err = vlan_ops->dis_stripping(vsi); + + if (enable_insertion) + insert_err = vlan_ops->ena_insertion(vsi, vlan_ethertype); + else + insert_err = vlan_ops->dis_insertion(vsi); + + if (strip_err || insert_err) + return -EIO; + + return 0; +} + +/** + * ice_set_vlan_filtering_features - set VLAN filtering features for the PF VSI + * @vsi: PF's VSI + * @features: features used to determine VLAN filtering settings + * + * Enable or disable Rx VLAN filtering based on the VLAN filtering bits in the + * features. + */ +static int +ice_set_vlan_filtering_features(struct ice_vsi *vsi, netdev_features_t features) +{ + struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); + int err = 0; + + /* support Single VLAN Mode (SVM) and Double VLAN Mode (DVM) by checking + * if either bit is set + */ + if (features & + (NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER)) + err = vlan_ops->ena_rx_filtering(vsi); + else + err = vlan_ops->dis_rx_filtering(vsi); + + return err; +} + +/** + * ice_set_vlan_features - set VLAN settings based on suggested feature set + * @netdev: ptr to the netdev being adjusted + * @features: the feature set that the stack is suggesting + * + * Only update VLAN settings if the requested_vlan_features are different than + * the current_vlan_features. + */ +static int +ice_set_vlan_features(struct net_device *netdev, netdev_features_t features) +{ + netdev_features_t current_vlan_features, requested_vlan_features; + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + int err; + + current_vlan_features = netdev->features & NETIF_VLAN_OFFLOAD_FEATURES; + requested_vlan_features = features & NETIF_VLAN_OFFLOAD_FEATURES; + if (current_vlan_features ^ requested_vlan_features) { + if ((features & NETIF_F_RXFCS) && + (features & NETIF_VLAN_STRIPPING_FEATURES)) { + dev_err(ice_pf_to_dev(vsi->back), + "To enable VLAN stripping, you must first enable FCS/CRC stripping\n"); + return -EIO; + } + + err = ice_set_vlan_offload_features(vsi, features); + if (err) + return err; + } + + current_vlan_features = netdev->features & + NETIF_VLAN_FILTERING_FEATURES; + requested_vlan_features = features & NETIF_VLAN_FILTERING_FEATURES; + if (current_vlan_features ^ requested_vlan_features) { + err = ice_set_vlan_filtering_features(vsi, features); + if (err) + return err; + } + + return 0; +} + +/** + * ice_set_loopback - turn on/off loopback mode on underlying PF + * @vsi: ptr to VSI + * @ena: flag to indicate the on/off setting + */ +static int ice_set_loopback(struct ice_vsi *vsi, bool ena) +{ + bool if_running = netif_running(vsi->netdev); + int ret; + + if (if_running && !test_and_set_bit(ICE_VSI_DOWN, vsi->state)) { + ret = ice_down(vsi); + if (ret) { + netdev_err(vsi->netdev, "Preparing device to toggle loopback failed\n"); + return ret; + } + } + ret = ice_aq_set_mac_loopback(&vsi->back->hw, ena, NULL); + if (ret) + netdev_err(vsi->netdev, "Failed to toggle loopback state\n"); + if (if_running) + ret = ice_up(vsi); + + return ret; +} + +/** + * ice_set_features - set the netdev feature flags + * @netdev: ptr to the netdev being adjusted + * @features: the feature set that the stack is suggesting + */ +static int +ice_set_features(struct net_device *netdev, netdev_features_t features) +{ + netdev_features_t changed = netdev->features ^ features; + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + struct ice_pf *pf = vsi->back; + int ret = 0; + + /* Don't set any netdev advanced features with device in Safe Mode */ + if (ice_is_safe_mode(pf)) { + dev_err(ice_pf_to_dev(pf), + "Device is in Safe Mode - not enabling advanced netdev features\n"); + return ret; + } + + /* Do not change setting during reset */ + if (ice_is_reset_in_progress(pf->state)) { + dev_err(ice_pf_to_dev(pf), + "Device is resetting, changing advanced netdev features temporarily unavailable.\n"); + return -EBUSY; + } + + /* Multiple features can be changed in one call so keep features in + * separate if/else statements to guarantee each feature is checked + */ + if (changed & NETIF_F_RXHASH) + ice_vsi_manage_rss_lut(vsi, !!(features & NETIF_F_RXHASH)); + + ret = ice_set_vlan_features(netdev, features); + if (ret) + return ret; + + /* Turn on receive of FCS aka CRC, and after setting this + * flag the packet data will have the 4 byte CRC appended + */ + if (changed & NETIF_F_RXFCS) { + if ((features & NETIF_F_RXFCS) && + (features & NETIF_VLAN_STRIPPING_FEATURES)) { + dev_err(ice_pf_to_dev(vsi->back), + "To disable FCS/CRC stripping, you must first disable VLAN stripping\n"); + return -EIO; + } + + ice_vsi_cfg_crc_strip(vsi, !!(features & NETIF_F_RXFCS)); + ret = ice_down_up(vsi); + if (ret) + return ret; + } + + if (changed & NETIF_F_NTUPLE) { + bool ena = !!(features & NETIF_F_NTUPLE); + + ice_vsi_manage_fdir(vsi, ena); + ena ? ice_init_arfs(vsi) : ice_clear_arfs(vsi); + } + + /* don't turn off hw_tc_offload when ADQ is already enabled */ + if (!(features & NETIF_F_HW_TC) && ice_is_adq_active(pf)) { + dev_err(ice_pf_to_dev(pf), "ADQ is active, can't turn hw_tc_offload off\n"); + return -EACCES; + } + + if (changed & NETIF_F_HW_TC) { + bool ena = !!(features & NETIF_F_HW_TC); + + ena ? set_bit(ICE_FLAG_CLS_FLOWER, pf->flags) : + clear_bit(ICE_FLAG_CLS_FLOWER, pf->flags); + } + + if (changed & NETIF_F_LOOPBACK) + ret = ice_set_loopback(vsi, !!(features & NETIF_F_LOOPBACK)); + + return ret; +} + +/** + * ice_vsi_vlan_setup - Setup VLAN offload properties on a PF VSI + * @vsi: VSI to setup VLAN properties for + */ +static int ice_vsi_vlan_setup(struct ice_vsi *vsi) +{ + int err; + + err = ice_set_vlan_offload_features(vsi, vsi->netdev->features); + if (err) + return err; + + err = ice_set_vlan_filtering_features(vsi, vsi->netdev->features); + if (err) + return err; + + return ice_vsi_add_vlan_zero(vsi); +} + +/** + * ice_vsi_cfg - Setup the VSI + * @vsi: the VSI being configured + * + * Return 0 on success and negative value on error + */ +int ice_vsi_cfg(struct ice_vsi *vsi) +{ + int err; + + if (vsi->netdev && vsi->type == ICE_VSI_PF) { + ice_set_rx_mode(vsi->netdev); + + err = ice_vsi_vlan_setup(vsi); + if (err) + return err; + } + ice_vsi_cfg_dcb_rings(vsi); + + err = ice_vsi_cfg_lan_txqs(vsi); + if (!err && ice_is_xdp_ena_vsi(vsi)) + err = ice_vsi_cfg_xdp_txqs(vsi); + if (!err) + err = ice_vsi_cfg_rxqs(vsi); + + return err; +} + +/* THEORY OF MODERATION: + * The ice driver hardware works differently than the hardware that DIMLIB was + * originally made for. ice hardware doesn't have packet count limits that + * can trigger an interrupt, but it *does* have interrupt rate limit support, + * which is hard-coded to a limit of 250,000 ints/second. + * If not using dynamic moderation, the INTRL value can be modified + * by ethtool rx-usecs-high. + */ +struct ice_dim { + /* the throttle rate for interrupts, basically worst case delay before + * an initial interrupt fires, value is stored in microseconds. + */ + u16 itr; +}; + +/* Make a different profile for Rx that doesn't allow quite so aggressive + * moderation at the high end (it maxes out at 126us or about 8k interrupts a + * second. + */ +static const struct ice_dim rx_profile[] = { + {2}, /* 500,000 ints/s, capped at 250K by INTRL */ + {8}, /* 125,000 ints/s */ + {16}, /* 62,500 ints/s */ + {62}, /* 16,129 ints/s */ + {126} /* 7,936 ints/s */ +}; + +/* The transmit profile, which has the same sorts of values + * as the previous struct + */ +static const struct ice_dim tx_profile[] = { + {2}, /* 500,000 ints/s, capped at 250K by INTRL */ + {8}, /* 125,000 ints/s */ + {40}, /* 16,125 ints/s */ + {128}, /* 7,812 ints/s */ + {256} /* 3,906 ints/s */ +}; + +static void ice_tx_dim_work(struct work_struct *work) +{ + struct ice_ring_container *rc; + struct dim *dim; + u16 itr; + + dim = container_of(work, struct dim, work); + rc = (struct ice_ring_container *)dim->priv; + + WARN_ON(dim->profile_ix >= ARRAY_SIZE(tx_profile)); + + /* look up the values in our local table */ + itr = tx_profile[dim->profile_ix].itr; + + ice_trace(tx_dim_work, container_of(rc, struct ice_q_vector, tx), dim); + ice_write_itr(rc, itr); + + dim->state = DIM_START_MEASURE; +} + +static void ice_rx_dim_work(struct work_struct *work) +{ + struct ice_ring_container *rc; + struct dim *dim; + u16 itr; + + dim = container_of(work, struct dim, work); + rc = (struct ice_ring_container *)dim->priv; + + WARN_ON(dim->profile_ix >= ARRAY_SIZE(rx_profile)); + + /* look up the values in our local table */ + itr = rx_profile[dim->profile_ix].itr; + + ice_trace(rx_dim_work, container_of(rc, struct ice_q_vector, rx), dim); + ice_write_itr(rc, itr); + + dim->state = DIM_START_MEASURE; +} + +#define ICE_DIM_DEFAULT_PROFILE_IX 1 + +/** + * ice_init_moderation - set up interrupt moderation + * @q_vector: the vector containing rings to be configured + * + * Set up interrupt moderation registers, with the intent to do the right thing + * when called from reset or from probe, and whether or not dynamic moderation + * is enabled or not. Take special care to write all the registers in both + * dynamic moderation mode or not in order to make sure hardware is in a known + * state. + */ +static void ice_init_moderation(struct ice_q_vector *q_vector) +{ + struct ice_ring_container *rc; + bool tx_dynamic, rx_dynamic; + + rc = &q_vector->tx; + INIT_WORK(&rc->dim.work, ice_tx_dim_work); + rc->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; + rc->dim.profile_ix = ICE_DIM_DEFAULT_PROFILE_IX; + rc->dim.priv = rc; + tx_dynamic = ITR_IS_DYNAMIC(rc); + + /* set the initial TX ITR to match the above */ + ice_write_itr(rc, tx_dynamic ? + tx_profile[rc->dim.profile_ix].itr : rc->itr_setting); + + rc = &q_vector->rx; + INIT_WORK(&rc->dim.work, ice_rx_dim_work); + rc->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; + rc->dim.profile_ix = ICE_DIM_DEFAULT_PROFILE_IX; + rc->dim.priv = rc; + rx_dynamic = ITR_IS_DYNAMIC(rc); + + /* set the initial RX ITR to match the above */ + ice_write_itr(rc, rx_dynamic ? rx_profile[rc->dim.profile_ix].itr : + rc->itr_setting); + + ice_set_q_vector_intrl(q_vector); +} + +/** + * ice_napi_enable_all - Enable NAPI for all q_vectors in the VSI + * @vsi: the VSI being configured + */ +static void ice_napi_enable_all(struct ice_vsi *vsi) +{ + int q_idx; + + if (!vsi->netdev) + return; + + ice_for_each_q_vector(vsi, q_idx) { + struct ice_q_vector *q_vector = vsi->q_vectors[q_idx]; + + ice_init_moderation(q_vector); + + if (q_vector->rx.rx_ring || q_vector->tx.tx_ring) + napi_enable(&q_vector->napi); + } +} + +/** + * ice_up_complete - Finish the last steps of bringing up a connection + * @vsi: The VSI being configured + * + * Return 0 on success and negative value on error + */ +static int ice_up_complete(struct ice_vsi *vsi) +{ + struct ice_pf *pf = vsi->back; + int err; + + ice_vsi_cfg_msix(vsi); + + /* Enable only Rx rings, Tx rings were enabled by the FW when the + * Tx queue group list was configured and the context bits were + * programmed using ice_vsi_cfg_txqs + */ + err = ice_vsi_start_all_rx_rings(vsi); + if (err) + return err; + + clear_bit(ICE_VSI_DOWN, vsi->state); + ice_napi_enable_all(vsi); + ice_vsi_ena_irq(vsi); + + if (vsi->port_info && + (vsi->port_info->phy.link_info.link_info & ICE_AQ_LINK_UP) && + vsi->netdev && vsi->type == ICE_VSI_PF) { + ice_print_link_msg(vsi, true); + netif_tx_start_all_queues(vsi->netdev); + netif_carrier_on(vsi->netdev); + if (!ice_is_e810(&pf->hw)) + ice_ptp_link_change(pf, pf->hw.pf_id, true); + } + + /* Perform an initial read of the statistics registers now to + * set the baseline so counters are ready when interface is up + */ + ice_update_eth_stats(vsi); + + if (vsi->type == ICE_VSI_PF) + ice_service_task_schedule(pf); + + return 0; +} + +/** + * ice_up - Bring the connection back up after being down + * @vsi: VSI being configured + */ +int ice_up(struct ice_vsi *vsi) +{ + int err; + + err = ice_vsi_cfg(vsi); + if (!err) + err = ice_up_complete(vsi); + + return err; +} + +/** + * ice_fetch_u64_stats_per_ring - get packets and bytes stats per ring + * @syncp: pointer to u64_stats_sync + * @stats: stats that pkts and bytes count will be taken from + * @pkts: packets stats counter + * @bytes: bytes stats counter + * + * This function fetches stats from the ring considering the atomic operations + * that needs to be performed to read u64 values in 32 bit machine. + */ +void +ice_fetch_u64_stats_per_ring(struct u64_stats_sync *syncp, + struct ice_q_stats stats, u64 *pkts, u64 *bytes) +{ + unsigned int start; + + do { + start = u64_stats_fetch_begin_irq(syncp); + *pkts = stats.pkts; + *bytes = stats.bytes; + } while (u64_stats_fetch_retry_irq(syncp, start)); +} + +/** + * ice_update_vsi_tx_ring_stats - Update VSI Tx ring stats counters + * @vsi: the VSI to be updated + * @vsi_stats: the stats struct to be updated + * @rings: rings to work on + * @count: number of rings + */ +static void +ice_update_vsi_tx_ring_stats(struct ice_vsi *vsi, + struct rtnl_link_stats64 *vsi_stats, + struct ice_tx_ring **rings, u16 count) +{ + u16 i; + + for (i = 0; i < count; i++) { + struct ice_tx_ring *ring; + u64 pkts = 0, bytes = 0; + + ring = READ_ONCE(rings[i]); + if (!ring) + continue; + ice_fetch_u64_stats_per_ring(&ring->syncp, ring->stats, &pkts, &bytes); + vsi_stats->tx_packets += pkts; + vsi_stats->tx_bytes += bytes; + vsi->tx_restart += ring->tx_stats.restart_q; + vsi->tx_busy += ring->tx_stats.tx_busy; + vsi->tx_linearize += ring->tx_stats.tx_linearize; + } +} + +/** + * ice_update_vsi_ring_stats - Update VSI stats counters + * @vsi: the VSI to be updated + */ +static void ice_update_vsi_ring_stats(struct ice_vsi *vsi) +{ + struct rtnl_link_stats64 *vsi_stats; + u64 pkts, bytes; + int i; + + vsi_stats = kzalloc(sizeof(*vsi_stats), GFP_ATOMIC); + if (!vsi_stats) + return; + + /* reset non-netdev (extended) stats */ + vsi->tx_restart = 0; + vsi->tx_busy = 0; + vsi->tx_linearize = 0; + vsi->rx_buf_failed = 0; + vsi->rx_page_failed = 0; + + rcu_read_lock(); + + /* update Tx rings counters */ + ice_update_vsi_tx_ring_stats(vsi, vsi_stats, vsi->tx_rings, + vsi->num_txq); + + /* update Rx rings counters */ + ice_for_each_rxq(vsi, i) { + struct ice_rx_ring *ring = READ_ONCE(vsi->rx_rings[i]); + + ice_fetch_u64_stats_per_ring(&ring->syncp, ring->stats, &pkts, &bytes); + vsi_stats->rx_packets += pkts; + vsi_stats->rx_bytes += bytes; + vsi->rx_buf_failed += ring->rx_stats.alloc_buf_failed; + vsi->rx_page_failed += ring->rx_stats.alloc_page_failed; + } + + /* update XDP Tx rings counters */ + if (ice_is_xdp_ena_vsi(vsi)) + ice_update_vsi_tx_ring_stats(vsi, vsi_stats, vsi->xdp_rings, + vsi->num_xdp_txq); + + rcu_read_unlock(); + + vsi->net_stats.tx_packets = vsi_stats->tx_packets; + vsi->net_stats.tx_bytes = vsi_stats->tx_bytes; + vsi->net_stats.rx_packets = vsi_stats->rx_packets; + vsi->net_stats.rx_bytes = vsi_stats->rx_bytes; + + kfree(vsi_stats); +} + +/** + * ice_update_vsi_stats - Update VSI stats counters + * @vsi: the VSI to be updated + */ +void ice_update_vsi_stats(struct ice_vsi *vsi) +{ + struct rtnl_link_stats64 *cur_ns = &vsi->net_stats; + struct ice_eth_stats *cur_es = &vsi->eth_stats; + struct ice_pf *pf = vsi->back; + + if (test_bit(ICE_VSI_DOWN, vsi->state) || + test_bit(ICE_CFG_BUSY, pf->state)) + return; + + /* get stats as recorded by Tx/Rx rings */ + ice_update_vsi_ring_stats(vsi); + + /* get VSI stats as recorded by the hardware */ + ice_update_eth_stats(vsi); + + cur_ns->tx_errors = cur_es->tx_errors; + cur_ns->rx_dropped = cur_es->rx_discards; + cur_ns->tx_dropped = cur_es->tx_discards; + cur_ns->multicast = cur_es->rx_multicast; + + /* update some more netdev stats if this is main VSI */ + if (vsi->type == ICE_VSI_PF) { + cur_ns->rx_crc_errors = pf->stats.crc_errors; + cur_ns->rx_errors = pf->stats.crc_errors + + pf->stats.illegal_bytes + + pf->stats.rx_len_errors + + pf->stats.rx_undersize + + pf->hw_csum_rx_error + + pf->stats.rx_jabber + + pf->stats.rx_fragments + + pf->stats.rx_oversize; + cur_ns->rx_length_errors = pf->stats.rx_len_errors; + /* record drops from the port level */ + cur_ns->rx_missed_errors = pf->stats.eth.rx_discards; + } +} + +/** + * ice_update_pf_stats - Update PF port stats counters + * @pf: PF whose stats needs to be updated + */ +void ice_update_pf_stats(struct ice_pf *pf) +{ + struct ice_hw_port_stats *prev_ps, *cur_ps; + struct ice_hw *hw = &pf->hw; + u16 fd_ctr_base; + u8 port; + + port = hw->port_info->lport; + prev_ps = &pf->stats_prev; + cur_ps = &pf->stats; + + ice_stat_update40(hw, GLPRT_GORCL(port), pf->stat_prev_loaded, + &prev_ps->eth.rx_bytes, + &cur_ps->eth.rx_bytes); + + ice_stat_update40(hw, GLPRT_UPRCL(port), pf->stat_prev_loaded, + &prev_ps->eth.rx_unicast, + &cur_ps->eth.rx_unicast); + + ice_stat_update40(hw, GLPRT_MPRCL(port), pf->stat_prev_loaded, + &prev_ps->eth.rx_multicast, + &cur_ps->eth.rx_multicast); + + ice_stat_update40(hw, GLPRT_BPRCL(port), pf->stat_prev_loaded, + &prev_ps->eth.rx_broadcast, + &cur_ps->eth.rx_broadcast); + + ice_stat_update32(hw, PRTRPB_RDPC, pf->stat_prev_loaded, + &prev_ps->eth.rx_discards, + &cur_ps->eth.rx_discards); + + ice_stat_update40(hw, GLPRT_GOTCL(port), pf->stat_prev_loaded, + &prev_ps->eth.tx_bytes, + &cur_ps->eth.tx_bytes); + + ice_stat_update40(hw, GLPRT_UPTCL(port), pf->stat_prev_loaded, + &prev_ps->eth.tx_unicast, + &cur_ps->eth.tx_unicast); + + ice_stat_update40(hw, GLPRT_MPTCL(port), pf->stat_prev_loaded, + &prev_ps->eth.tx_multicast, + &cur_ps->eth.tx_multicast); + + ice_stat_update40(hw, GLPRT_BPTCL(port), pf->stat_prev_loaded, + &prev_ps->eth.tx_broadcast, + &cur_ps->eth.tx_broadcast); + + ice_stat_update32(hw, GLPRT_TDOLD(port), pf->stat_prev_loaded, + &prev_ps->tx_dropped_link_down, + &cur_ps->tx_dropped_link_down); + + ice_stat_update40(hw, GLPRT_PRC64L(port), pf->stat_prev_loaded, + &prev_ps->rx_size_64, &cur_ps->rx_size_64); + + ice_stat_update40(hw, GLPRT_PRC127L(port), pf->stat_prev_loaded, + &prev_ps->rx_size_127, &cur_ps->rx_size_127); + + ice_stat_update40(hw, GLPRT_PRC255L(port), pf->stat_prev_loaded, + &prev_ps->rx_size_255, &cur_ps->rx_size_255); + + ice_stat_update40(hw, GLPRT_PRC511L(port), pf->stat_prev_loaded, + &prev_ps->rx_size_511, &cur_ps->rx_size_511); + + ice_stat_update40(hw, GLPRT_PRC1023L(port), pf->stat_prev_loaded, + &prev_ps->rx_size_1023, &cur_ps->rx_size_1023); + + ice_stat_update40(hw, GLPRT_PRC1522L(port), pf->stat_prev_loaded, + &prev_ps->rx_size_1522, &cur_ps->rx_size_1522); + + ice_stat_update40(hw, GLPRT_PRC9522L(port), pf->stat_prev_loaded, + &prev_ps->rx_size_big, &cur_ps->rx_size_big); + + ice_stat_update40(hw, GLPRT_PTC64L(port), pf->stat_prev_loaded, + &prev_ps->tx_size_64, &cur_ps->tx_size_64); + + ice_stat_update40(hw, GLPRT_PTC127L(port), pf->stat_prev_loaded, + &prev_ps->tx_size_127, &cur_ps->tx_size_127); + + ice_stat_update40(hw, GLPRT_PTC255L(port), pf->stat_prev_loaded, + &prev_ps->tx_size_255, &cur_ps->tx_size_255); + + ice_stat_update40(hw, GLPRT_PTC511L(port), pf->stat_prev_loaded, + &prev_ps->tx_size_511, &cur_ps->tx_size_511); + + ice_stat_update40(hw, GLPRT_PTC1023L(port), pf->stat_prev_loaded, + &prev_ps->tx_size_1023, &cur_ps->tx_size_1023); + + ice_stat_update40(hw, GLPRT_PTC1522L(port), pf->stat_prev_loaded, + &prev_ps->tx_size_1522, &cur_ps->tx_size_1522); + + ice_stat_update40(hw, GLPRT_PTC9522L(port), pf->stat_prev_loaded, + &prev_ps->tx_size_big, &cur_ps->tx_size_big); + + fd_ctr_base = hw->fd_ctr_base; + + ice_stat_update40(hw, + GLSTAT_FD_CNT0L(ICE_FD_SB_STAT_IDX(fd_ctr_base)), + pf->stat_prev_loaded, &prev_ps->fd_sb_match, + &cur_ps->fd_sb_match); + ice_stat_update32(hw, GLPRT_LXONRXC(port), pf->stat_prev_loaded, + &prev_ps->link_xon_rx, &cur_ps->link_xon_rx); + + ice_stat_update32(hw, GLPRT_LXOFFRXC(port), pf->stat_prev_loaded, + &prev_ps->link_xoff_rx, &cur_ps->link_xoff_rx); + + ice_stat_update32(hw, GLPRT_LXONTXC(port), pf->stat_prev_loaded, + &prev_ps->link_xon_tx, &cur_ps->link_xon_tx); + + ice_stat_update32(hw, GLPRT_LXOFFTXC(port), pf->stat_prev_loaded, + &prev_ps->link_xoff_tx, &cur_ps->link_xoff_tx); + + ice_update_dcb_stats(pf); + + ice_stat_update32(hw, GLPRT_CRCERRS(port), pf->stat_prev_loaded, + &prev_ps->crc_errors, &cur_ps->crc_errors); + + ice_stat_update32(hw, GLPRT_ILLERRC(port), pf->stat_prev_loaded, + &prev_ps->illegal_bytes, &cur_ps->illegal_bytes); + + ice_stat_update32(hw, GLPRT_MLFC(port), pf->stat_prev_loaded, + &prev_ps->mac_local_faults, + &cur_ps->mac_local_faults); + + ice_stat_update32(hw, GLPRT_MRFC(port), pf->stat_prev_loaded, + &prev_ps->mac_remote_faults, + &cur_ps->mac_remote_faults); + + ice_stat_update32(hw, GLPRT_RLEC(port), pf->stat_prev_loaded, + &prev_ps->rx_len_errors, &cur_ps->rx_len_errors); + + ice_stat_update32(hw, GLPRT_RUC(port), pf->stat_prev_loaded, + &prev_ps->rx_undersize, &cur_ps->rx_undersize); + + ice_stat_update32(hw, GLPRT_RFC(port), pf->stat_prev_loaded, + &prev_ps->rx_fragments, &cur_ps->rx_fragments); + + ice_stat_update32(hw, GLPRT_ROC(port), pf->stat_prev_loaded, + &prev_ps->rx_oversize, &cur_ps->rx_oversize); + + ice_stat_update32(hw, GLPRT_RJC(port), pf->stat_prev_loaded, + &prev_ps->rx_jabber, &cur_ps->rx_jabber); + + cur_ps->fd_sb_status = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0; + + pf->stat_prev_loaded = true; +} + +/** + * ice_get_stats64 - get statistics for network device structure + * @netdev: network interface device structure + * @stats: main device statistics structure + */ +static +void ice_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct rtnl_link_stats64 *vsi_stats; + struct ice_vsi *vsi = np->vsi; + + vsi_stats = &vsi->net_stats; + + if (!vsi->num_txq || !vsi->num_rxq) + return; + + /* netdev packet/byte stats come from ring counter. These are obtained + * by summing up ring counters (done by ice_update_vsi_ring_stats). + * But, only call the update routine and read the registers if VSI is + * not down. + */ + if (!test_bit(ICE_VSI_DOWN, vsi->state)) + ice_update_vsi_ring_stats(vsi); + stats->tx_packets = vsi_stats->tx_packets; + stats->tx_bytes = vsi_stats->tx_bytes; + stats->rx_packets = vsi_stats->rx_packets; + stats->rx_bytes = vsi_stats->rx_bytes; + + /* The rest of the stats can be read from the hardware but instead we + * just return values that the watchdog task has already obtained from + * the hardware. + */ + stats->multicast = vsi_stats->multicast; + stats->tx_errors = vsi_stats->tx_errors; + stats->tx_dropped = vsi_stats->tx_dropped; + stats->rx_errors = vsi_stats->rx_errors; + stats->rx_dropped = vsi_stats->rx_dropped; + stats->rx_crc_errors = vsi_stats->rx_crc_errors; + stats->rx_length_errors = vsi_stats->rx_length_errors; +} + +/** + * ice_napi_disable_all - Disable NAPI for all q_vectors in the VSI + * @vsi: VSI having NAPI disabled + */ +static void ice_napi_disable_all(struct ice_vsi *vsi) +{ + int q_idx; + + if (!vsi->netdev) + return; + + ice_for_each_q_vector(vsi, q_idx) { + struct ice_q_vector *q_vector = vsi->q_vectors[q_idx]; + + if (q_vector->rx.rx_ring || q_vector->tx.tx_ring) + napi_disable(&q_vector->napi); + + cancel_work_sync(&q_vector->tx.dim.work); + cancel_work_sync(&q_vector->rx.dim.work); + } +} + +/** + * ice_down - Shutdown the connection + * @vsi: The VSI being stopped + * + * Caller of this function is expected to set the vsi->state ICE_DOWN bit + */ +int ice_down(struct ice_vsi *vsi) +{ + int i, tx_err, rx_err, vlan_err = 0; + + WARN_ON(!test_bit(ICE_VSI_DOWN, vsi->state)); + + if (vsi->netdev && vsi->type == ICE_VSI_PF) { + vlan_err = ice_vsi_del_vlan_zero(vsi); + if (!ice_is_e810(&vsi->back->hw)) + ice_ptp_link_change(vsi->back, vsi->back->hw.pf_id, false); + netif_carrier_off(vsi->netdev); + netif_tx_disable(vsi->netdev); + } else if (vsi->type == ICE_VSI_SWITCHDEV_CTRL) { + ice_eswitch_stop_all_tx_queues(vsi->back); + } + + ice_vsi_dis_irq(vsi); + + tx_err = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0); + if (tx_err) + netdev_err(vsi->netdev, "Failed stop Tx rings, VSI %d error %d\n", + vsi->vsi_num, tx_err); + if (!tx_err && ice_is_xdp_ena_vsi(vsi)) { + tx_err = ice_vsi_stop_xdp_tx_rings(vsi); + if (tx_err) + netdev_err(vsi->netdev, "Failed stop XDP rings, VSI %d error %d\n", + vsi->vsi_num, tx_err); + } + + rx_err = ice_vsi_stop_all_rx_rings(vsi); + if (rx_err) + netdev_err(vsi->netdev, "Failed stop Rx rings, VSI %d error %d\n", + vsi->vsi_num, rx_err); + + ice_napi_disable_all(vsi); + + ice_for_each_txq(vsi, i) + ice_clean_tx_ring(vsi->tx_rings[i]); + + if (ice_is_xdp_ena_vsi(vsi)) + ice_for_each_xdp_txq(vsi, i) + ice_clean_tx_ring(vsi->xdp_rings[i]); + + ice_for_each_rxq(vsi, i) + ice_clean_rx_ring(vsi->rx_rings[i]); + + if (tx_err || rx_err || vlan_err) { + netdev_err(vsi->netdev, "Failed to close VSI 0x%04X on switch 0x%04X\n", + vsi->vsi_num, vsi->vsw->sw_id); + return -EIO; + } + + return 0; +} + +/** + * ice_down_up - shutdown the VSI connection and bring it up + * @vsi: the VSI to be reconnected + */ +int ice_down_up(struct ice_vsi *vsi) +{ + int ret; + + /* if DOWN already set, nothing to do */ + if (test_and_set_bit(ICE_VSI_DOWN, vsi->state)) + return 0; + + ret = ice_down(vsi); + if (ret) + return ret; + + ret = ice_up(vsi); + if (ret) { + netdev_err(vsi->netdev, "reallocating resources failed during netdev features change, may need to reload driver\n"); + return ret; + } + + return 0; +} + +/** + * ice_vsi_setup_tx_rings - Allocate VSI Tx queue resources + * @vsi: VSI having resources allocated + * + * Return 0 on success, negative on failure + */ +int ice_vsi_setup_tx_rings(struct ice_vsi *vsi) +{ + int i, err = 0; + + if (!vsi->num_txq) { + dev_err(ice_pf_to_dev(vsi->back), "VSI %d has 0 Tx queues\n", + vsi->vsi_num); + return -EINVAL; + } + + ice_for_each_txq(vsi, i) { + struct ice_tx_ring *ring = vsi->tx_rings[i]; + + if (!ring) + return -EINVAL; + + if (vsi->netdev) + ring->netdev = vsi->netdev; + err = ice_setup_tx_ring(ring); + if (err) + break; + } + + return err; +} + +/** + * ice_vsi_setup_rx_rings - Allocate VSI Rx queue resources + * @vsi: VSI having resources allocated + * + * Return 0 on success, negative on failure + */ +int ice_vsi_setup_rx_rings(struct ice_vsi *vsi) +{ + int i, err = 0; + + if (!vsi->num_rxq) { + dev_err(ice_pf_to_dev(vsi->back), "VSI %d has 0 Rx queues\n", + vsi->vsi_num); + return -EINVAL; + } + + ice_for_each_rxq(vsi, i) { + struct ice_rx_ring *ring = vsi->rx_rings[i]; + + if (!ring) + return -EINVAL; + + if (vsi->netdev) + ring->netdev = vsi->netdev; + err = ice_setup_rx_ring(ring); + if (err) + break; + } + + return err; +} + +/** + * ice_vsi_open_ctrl - open control VSI for use + * @vsi: the VSI to open + * + * Initialization of the Control VSI + * + * Returns 0 on success, negative value on error + */ +int ice_vsi_open_ctrl(struct ice_vsi *vsi) +{ + char int_name[ICE_INT_NAME_STR_LEN]; + struct ice_pf *pf = vsi->back; + struct device *dev; + int err; + + dev = ice_pf_to_dev(pf); + /* allocate descriptors */ + err = ice_vsi_setup_tx_rings(vsi); + if (err) + goto err_setup_tx; + + err = ice_vsi_setup_rx_rings(vsi); + if (err) + goto err_setup_rx; + + err = ice_vsi_cfg(vsi); + if (err) + goto err_setup_rx; + + snprintf(int_name, sizeof(int_name) - 1, "%s-%s:ctrl", + dev_driver_string(dev), dev_name(dev)); + err = ice_vsi_req_irq_msix(vsi, int_name); + if (err) + goto err_setup_rx; + + ice_vsi_cfg_msix(vsi); + + err = ice_vsi_start_all_rx_rings(vsi); + if (err) + goto err_up_complete; + + clear_bit(ICE_VSI_DOWN, vsi->state); + ice_vsi_ena_irq(vsi); + + return 0; + +err_up_complete: + ice_down(vsi); +err_setup_rx: + ice_vsi_free_rx_rings(vsi); +err_setup_tx: + ice_vsi_free_tx_rings(vsi); + + return err; +} + +/** + * ice_vsi_open - Called when a network interface is made active + * @vsi: the VSI to open + * + * Initialization of the VSI + * + * Returns 0 on success, negative value on error + */ +int ice_vsi_open(struct ice_vsi *vsi) +{ + char int_name[ICE_INT_NAME_STR_LEN]; + struct ice_pf *pf = vsi->back; + int err; + + /* allocate descriptors */ + err = ice_vsi_setup_tx_rings(vsi); + if (err) + goto err_setup_tx; + + err = ice_vsi_setup_rx_rings(vsi); + if (err) + goto err_setup_rx; + + err = ice_vsi_cfg(vsi); + if (err) + goto err_setup_rx; + + snprintf(int_name, sizeof(int_name) - 1, "%s-%s", + dev_driver_string(ice_pf_to_dev(pf)), vsi->netdev->name); + err = ice_vsi_req_irq_msix(vsi, int_name); + if (err) + goto err_setup_rx; + + ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc); + + if (vsi->type == ICE_VSI_PF) { + /* Notify the stack of the actual queue counts. */ + err = netif_set_real_num_tx_queues(vsi->netdev, vsi->num_txq); + if (err) + goto err_set_qs; + + err = netif_set_real_num_rx_queues(vsi->netdev, vsi->num_rxq); + if (err) + goto err_set_qs; + } + + err = ice_up_complete(vsi); + if (err) + goto err_up_complete; + + return 0; + +err_up_complete: + ice_down(vsi); +err_set_qs: + ice_vsi_free_irq(vsi); +err_setup_rx: + ice_vsi_free_rx_rings(vsi); +err_setup_tx: + ice_vsi_free_tx_rings(vsi); + + return err; +} + +/** + * ice_vsi_release_all - Delete all VSIs + * @pf: PF from which all VSIs are being removed + */ +static void ice_vsi_release_all(struct ice_pf *pf) +{ + int err, i; + + if (!pf->vsi) + return; + + ice_for_each_vsi(pf, i) { + if (!pf->vsi[i]) + continue; + + if (pf->vsi[i]->type == ICE_VSI_CHNL) + continue; + + err = ice_vsi_release(pf->vsi[i]); + if (err) + dev_dbg(ice_pf_to_dev(pf), "Failed to release pf->vsi[%d], err %d, vsi_num = %d\n", + i, err, pf->vsi[i]->vsi_num); + } +} + +/** + * ice_vsi_rebuild_by_type - Rebuild VSI of a given type + * @pf: pointer to the PF instance + * @type: VSI type to rebuild + * + * Iterates through the pf->vsi array and rebuilds VSIs of the requested type + */ +static int ice_vsi_rebuild_by_type(struct ice_pf *pf, enum ice_vsi_type type) +{ + struct device *dev = ice_pf_to_dev(pf); + int i, err; + + ice_for_each_vsi(pf, i) { + struct ice_vsi *vsi = pf->vsi[i]; + + if (!vsi || vsi->type != type) + continue; + + /* rebuild the VSI */ + err = ice_vsi_rebuild(vsi, true); + if (err) { + dev_err(dev, "rebuild VSI failed, err %d, VSI index %d, type %s\n", + err, vsi->idx, ice_vsi_type_str(type)); + return err; + } + + /* replay filters for the VSI */ + err = ice_replay_vsi(&pf->hw, vsi->idx); + if (err) { + dev_err(dev, "replay VSI failed, error %d, VSI index %d, type %s\n", + err, vsi->idx, ice_vsi_type_str(type)); + return err; + } + + /* Re-map HW VSI number, using VSI handle that has been + * previously validated in ice_replay_vsi() call above + */ + vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx); + + /* enable the VSI */ + err = ice_ena_vsi(vsi, false); + if (err) { + dev_err(dev, "enable VSI failed, err %d, VSI index %d, type %s\n", + err, vsi->idx, ice_vsi_type_str(type)); + return err; + } + + dev_info(dev, "VSI rebuilt. VSI index %d, type %s\n", vsi->idx, + ice_vsi_type_str(type)); + } + + return 0; +} + +/** + * ice_update_pf_netdev_link - Update PF netdev link status + * @pf: pointer to the PF instance + */ +static void ice_update_pf_netdev_link(struct ice_pf *pf) +{ + bool link_up; + int i; + + ice_for_each_vsi(pf, i) { + struct ice_vsi *vsi = pf->vsi[i]; + + if (!vsi || vsi->type != ICE_VSI_PF) + return; + + ice_get_link_status(pf->vsi[i]->port_info, &link_up); + if (link_up) { + netif_carrier_on(pf->vsi[i]->netdev); + netif_tx_wake_all_queues(pf->vsi[i]->netdev); + } else { + netif_carrier_off(pf->vsi[i]->netdev); + netif_tx_stop_all_queues(pf->vsi[i]->netdev); + } + } +} + +/** + * ice_rebuild - rebuild after reset + * @pf: PF to rebuild + * @reset_type: type of reset + * + * Do not rebuild VF VSI in this flow because that is already handled via + * ice_reset_all_vfs(). This is because requirements for resetting a VF after a + * PFR/CORER/GLOBER/etc. are different than the normal flow. Also, we don't want + * to reset/rebuild all the VF VSI twice. + */ +static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_hw *hw = &pf->hw; + bool dvm; + int err; + + if (test_bit(ICE_DOWN, pf->state)) + goto clear_recovery; + + dev_dbg(dev, "rebuilding PF after reset_type=%d\n", reset_type); + +#define ICE_EMP_RESET_SLEEP_MS 5000 + if (reset_type == ICE_RESET_EMPR) { + /* If an EMP reset has occurred, any previously pending flash + * update will have completed. We no longer know whether or + * not the NVM update EMP reset is restricted. + */ + pf->fw_emp_reset_disabled = false; + + msleep(ICE_EMP_RESET_SLEEP_MS); + } + + err = ice_init_all_ctrlq(hw); + if (err) { + dev_err(dev, "control queues init failed %d\n", err); + goto err_init_ctrlq; + } + + /* if DDP was previously loaded successfully */ + if (!ice_is_safe_mode(pf)) { + /* reload the SW DB of filter tables */ + if (reset_type == ICE_RESET_PFR) + ice_fill_blk_tbls(hw); + else + /* Reload DDP Package after CORER/GLOBR reset */ + ice_load_pkg(NULL, pf); + } + + err = ice_clear_pf_cfg(hw); + if (err) { + dev_err(dev, "clear PF configuration failed %d\n", err); + goto err_init_ctrlq; + } + + ice_clear_pxe_mode(hw); + + err = ice_init_nvm(hw); + if (err) { + dev_err(dev, "ice_init_nvm failed %d\n", err); + goto err_init_ctrlq; + } + + err = ice_get_caps(hw); + if (err) { + dev_err(dev, "ice_get_caps failed %d\n", err); + goto err_init_ctrlq; + } + + err = ice_aq_set_mac_cfg(hw, ICE_AQ_SET_MAC_FRAME_SIZE_MAX, NULL); + if (err) { + dev_err(dev, "set_mac_cfg failed %d\n", err); + goto err_init_ctrlq; + } + + dvm = ice_is_dvm_ena(hw); + + err = ice_aq_set_port_params(pf->hw.port_info, dvm, NULL); + if (err) + goto err_init_ctrlq; + + err = ice_sched_init_port(hw->port_info); + if (err) + goto err_sched_init_port; + + /* start misc vector */ + err = ice_req_irq_msix_misc(pf); + if (err) { + dev_err(dev, "misc vector setup failed: %d\n", err); + goto err_sched_init_port; + } + + if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) { + wr32(hw, PFQF_FD_ENA, PFQF_FD_ENA_FD_ENA_M); + if (!rd32(hw, PFQF_FD_SIZE)) { + u16 unused, guar, b_effort; + + guar = hw->func_caps.fd_fltr_guar; + b_effort = hw->func_caps.fd_fltr_best_effort; + + /* force guaranteed filter pool for PF */ + ice_alloc_fd_guar_item(hw, &unused, guar); + /* force shared filter pool for PF */ + ice_alloc_fd_shrd_item(hw, &unused, b_effort); + } + } + + if (test_bit(ICE_FLAG_DCB_ENA, pf->flags)) + ice_dcb_rebuild(pf); + + /* If the PF previously had enabled PTP, PTP init needs to happen before + * the VSI rebuild. If not, this causes the PTP link status events to + * fail. + */ + if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) + ice_ptp_reset(pf); + + if (ice_is_feature_supported(pf, ICE_F_GNSS)) + ice_gnss_init(pf); + + /* rebuild PF VSI */ + err = ice_vsi_rebuild_by_type(pf, ICE_VSI_PF); + if (err) { + dev_err(dev, "PF VSI rebuild failed: %d\n", err); + goto err_vsi_rebuild; + } + + /* configure PTP timestamping after VSI rebuild */ + if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) + ice_ptp_cfg_timestamp(pf, false); + + err = ice_vsi_rebuild_by_type(pf, ICE_VSI_SWITCHDEV_CTRL); + if (err) { + dev_err(dev, "Switchdev CTRL VSI rebuild failed: %d\n", err); + goto err_vsi_rebuild; + } + + if (reset_type == ICE_RESET_PFR) { + err = ice_rebuild_channels(pf); + if (err) { + dev_err(dev, "failed to rebuild and replay ADQ VSIs, err %d\n", + err); + goto err_vsi_rebuild; + } + } + + /* If Flow Director is active */ + if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) { + err = ice_vsi_rebuild_by_type(pf, ICE_VSI_CTRL); + if (err) { + dev_err(dev, "control VSI rebuild failed: %d\n", err); + goto err_vsi_rebuild; + } + + /* replay HW Flow Director recipes */ + if (hw->fdir_prof) + ice_fdir_replay_flows(hw); + + /* replay Flow Director filters */ + ice_fdir_replay_fltrs(pf); + + ice_rebuild_arfs(pf); + } + + ice_update_pf_netdev_link(pf); + + /* tell the firmware we are up */ + err = ice_send_version(pf); + if (err) { + dev_err(dev, "Rebuild failed due to error sending driver version: %d\n", + err); + goto err_vsi_rebuild; + } + + ice_replay_post(hw); + + /* if we get here, reset flow is successful */ + clear_bit(ICE_RESET_FAILED, pf->state); + + ice_plug_aux_dev(pf); + return; + +err_vsi_rebuild: +err_sched_init_port: + ice_sched_cleanup_all(hw); +err_init_ctrlq: + ice_shutdown_all_ctrlq(hw); + set_bit(ICE_RESET_FAILED, pf->state); +clear_recovery: + /* set this bit in PF state to control service task scheduling */ + set_bit(ICE_NEEDS_RESTART, pf->state); + dev_err(dev, "Rebuild failed, unload and reload driver\n"); +} + +/** + * ice_max_xdp_frame_size - returns the maximum allowed frame size for XDP + * @vsi: Pointer to VSI structure + */ +static int ice_max_xdp_frame_size(struct ice_vsi *vsi) +{ + if (PAGE_SIZE >= 8192 || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags)) + return ICE_RXBUF_2048 - XDP_PACKET_HEADROOM; + else + return ICE_RXBUF_3072; +} + +/** + * ice_change_mtu - NDO callback to change the MTU + * @netdev: network interface device structure + * @new_mtu: new value for maximum frame size + * + * Returns 0 on success, negative on failure + */ +static int ice_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + struct ice_pf *pf = vsi->back; + u8 count = 0; + int err = 0; + + if (new_mtu == (int)netdev->mtu) { + netdev_warn(netdev, "MTU is already %u\n", netdev->mtu); + return 0; + } + + if (ice_is_xdp_ena_vsi(vsi)) { + int frame_size = ice_max_xdp_frame_size(vsi); + + if (new_mtu + ICE_ETH_PKT_HDR_PAD > frame_size) { + netdev_err(netdev, "max MTU for XDP usage is %d\n", + frame_size - ICE_ETH_PKT_HDR_PAD); + return -EINVAL; + } + } + + /* if a reset is in progress, wait for some time for it to complete */ + do { + if (ice_is_reset_in_progress(pf->state)) { + count++; + usleep_range(1000, 2000); + } else { + break; + } + + } while (count < 100); + + if (count == 100) { + netdev_err(netdev, "can't change MTU. Device is busy\n"); + return -EBUSY; + } + + netdev->mtu = (unsigned int)new_mtu; + + /* if VSI is up, bring it down and then back up */ + if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) { + err = ice_down(vsi); + if (err) { + netdev_err(netdev, "change MTU if_down err %d\n", err); + return err; + } + + err = ice_up(vsi); + if (err) { + netdev_err(netdev, "change MTU if_up err %d\n", err); + return err; + } + } + + netdev_dbg(netdev, "changed MTU to %d\n", new_mtu); + set_bit(ICE_FLAG_MTU_CHANGED, pf->flags); + + return err; +} + +/** + * ice_eth_ioctl - Access the hwtstamp interface + * @netdev: network interface device structure + * @ifr: interface request data + * @cmd: ioctl command + */ +static int ice_eth_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_pf *pf = np->vsi->back; + + switch (cmd) { + case SIOCGHWTSTAMP: + return ice_ptp_get_ts_config(pf, ifr); + case SIOCSHWTSTAMP: + return ice_ptp_set_ts_config(pf, ifr); + default: + return -EOPNOTSUPP; + } +} + +/** + * ice_aq_str - convert AQ err code to a string + * @aq_err: the AQ error code to convert + */ +const char *ice_aq_str(enum ice_aq_err aq_err) +{ + switch (aq_err) { + case ICE_AQ_RC_OK: + return "OK"; + case ICE_AQ_RC_EPERM: + return "ICE_AQ_RC_EPERM"; + case ICE_AQ_RC_ENOENT: + return "ICE_AQ_RC_ENOENT"; + case ICE_AQ_RC_ENOMEM: + return "ICE_AQ_RC_ENOMEM"; + case ICE_AQ_RC_EBUSY: + return "ICE_AQ_RC_EBUSY"; + case ICE_AQ_RC_EEXIST: + return "ICE_AQ_RC_EEXIST"; + case ICE_AQ_RC_EINVAL: + return "ICE_AQ_RC_EINVAL"; + case ICE_AQ_RC_ENOSPC: + return "ICE_AQ_RC_ENOSPC"; + case ICE_AQ_RC_ENOSYS: + return "ICE_AQ_RC_ENOSYS"; + case ICE_AQ_RC_EMODE: + return "ICE_AQ_RC_EMODE"; + case ICE_AQ_RC_ENOSEC: + return "ICE_AQ_RC_ENOSEC"; + case ICE_AQ_RC_EBADSIG: + return "ICE_AQ_RC_EBADSIG"; + case ICE_AQ_RC_ESVN: + return "ICE_AQ_RC_ESVN"; + case ICE_AQ_RC_EBADMAN: + return "ICE_AQ_RC_EBADMAN"; + case ICE_AQ_RC_EBADBUF: + return "ICE_AQ_RC_EBADBUF"; + } + + return "ICE_AQ_RC_UNKNOWN"; +} + +/** + * ice_set_rss_lut - Set RSS LUT + * @vsi: Pointer to VSI structure + * @lut: Lookup table + * @lut_size: Lookup table size + * + * Returns 0 on success, negative on failure + */ +int ice_set_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size) +{ + struct ice_aq_get_set_rss_lut_params params = {}; + struct ice_hw *hw = &vsi->back->hw; + int status; + + if (!lut) + return -EINVAL; + + params.vsi_handle = vsi->idx; + params.lut_size = lut_size; + params.lut_type = vsi->rss_lut_type; + params.lut = lut; + + status = ice_aq_set_rss_lut(hw, ¶ms); + if (status) + dev_err(ice_pf_to_dev(vsi->back), "Cannot set RSS lut, err %d aq_err %s\n", + status, ice_aq_str(hw->adminq.sq_last_status)); + + return status; +} + +/** + * ice_set_rss_key - Set RSS key + * @vsi: Pointer to the VSI structure + * @seed: RSS hash seed + * + * Returns 0 on success, negative on failure + */ +int ice_set_rss_key(struct ice_vsi *vsi, u8 *seed) +{ + struct ice_hw *hw = &vsi->back->hw; + int status; + + if (!seed) + return -EINVAL; + + status = ice_aq_set_rss_key(hw, vsi->idx, (struct ice_aqc_get_set_rss_keys *)seed); + if (status) + dev_err(ice_pf_to_dev(vsi->back), "Cannot set RSS key, err %d aq_err %s\n", + status, ice_aq_str(hw->adminq.sq_last_status)); + + return status; +} + +/** + * ice_get_rss_lut - Get RSS LUT + * @vsi: Pointer to VSI structure + * @lut: Buffer to store the lookup table entries + * @lut_size: Size of buffer to store the lookup table entries + * + * Returns 0 on success, negative on failure + */ +int ice_get_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size) +{ + struct ice_aq_get_set_rss_lut_params params = {}; + struct ice_hw *hw = &vsi->back->hw; + int status; + + if (!lut) + return -EINVAL; + + params.vsi_handle = vsi->idx; + params.lut_size = lut_size; + params.lut_type = vsi->rss_lut_type; + params.lut = lut; + + status = ice_aq_get_rss_lut(hw, ¶ms); + if (status) + dev_err(ice_pf_to_dev(vsi->back), "Cannot get RSS lut, err %d aq_err %s\n", + status, ice_aq_str(hw->adminq.sq_last_status)); + + return status; +} + +/** + * ice_get_rss_key - Get RSS key + * @vsi: Pointer to VSI structure + * @seed: Buffer to store the key in + * + * Returns 0 on success, negative on failure + */ +int ice_get_rss_key(struct ice_vsi *vsi, u8 *seed) +{ + struct ice_hw *hw = &vsi->back->hw; + int status; + + if (!seed) + return -EINVAL; + + status = ice_aq_get_rss_key(hw, vsi->idx, (struct ice_aqc_get_set_rss_keys *)seed); + if (status) + dev_err(ice_pf_to_dev(vsi->back), "Cannot get RSS key, err %d aq_err %s\n", + status, ice_aq_str(hw->adminq.sq_last_status)); + + return status; +} + +/** + * ice_bridge_getlink - Get the hardware bridge mode + * @skb: skb buff + * @pid: process ID + * @seq: RTNL message seq + * @dev: the netdev being configured + * @filter_mask: filter mask passed in + * @nlflags: netlink flags passed in + * + * Return the bridge mode (VEB/VEPA) + */ +static int +ice_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, + struct net_device *dev, u32 filter_mask, int nlflags) +{ + struct ice_netdev_priv *np = netdev_priv(dev); + struct ice_vsi *vsi = np->vsi; + struct ice_pf *pf = vsi->back; + u16 bmode; + + bmode = pf->first_sw->bridge_mode; + + return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bmode, 0, 0, nlflags, + filter_mask, NULL); +} + +/** + * ice_vsi_update_bridge_mode - Update VSI for switching bridge mode (VEB/VEPA) + * @vsi: Pointer to VSI structure + * @bmode: Hardware bridge mode (VEB/VEPA) + * + * Returns 0 on success, negative on failure + */ +static int ice_vsi_update_bridge_mode(struct ice_vsi *vsi, u16 bmode) +{ + struct ice_aqc_vsi_props *vsi_props; + struct ice_hw *hw = &vsi->back->hw; + struct ice_vsi_ctx *ctxt; + int ret; + + vsi_props = &vsi->info; + + ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); + if (!ctxt) + return -ENOMEM; + + ctxt->info = vsi->info; + + if (bmode == BRIDGE_MODE_VEB) + /* change from VEPA to VEB mode */ + ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB; + else + /* change from VEB to VEPA mode */ + ctxt->info.sw_flags &= ~ICE_AQ_VSI_SW_FLAG_ALLOW_LB; + ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID); + + ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL); + if (ret) { + dev_err(ice_pf_to_dev(vsi->back), "update VSI for bridge mode failed, bmode = %d err %d aq_err %s\n", + bmode, ret, ice_aq_str(hw->adminq.sq_last_status)); + goto out; + } + /* Update sw flags for book keeping */ + vsi_props->sw_flags = ctxt->info.sw_flags; + +out: + kfree(ctxt); + return ret; +} + +/** + * ice_bridge_setlink - Set the hardware bridge mode + * @dev: the netdev being configured + * @nlh: RTNL message + * @flags: bridge setlink flags + * @extack: netlink extended ack + * + * Sets the bridge mode (VEB/VEPA) of the switch to which the netdev (VSI) is + * hooked up to. Iterates through the PF VSI list and sets the loopback mode (if + * not already set for all VSIs connected to this switch. And also update the + * unicast switch filter rules for the corresponding switch of the netdev. + */ +static int +ice_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, + u16 __always_unused flags, + struct netlink_ext_ack __always_unused *extack) +{ + struct ice_netdev_priv *np = netdev_priv(dev); + struct ice_pf *pf = np->vsi->back; + struct nlattr *attr, *br_spec; + struct ice_hw *hw = &pf->hw; + struct ice_sw *pf_sw; + int rem, v, err = 0; + + pf_sw = pf->first_sw; + /* find the attribute in the netlink message */ + br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); + + nla_for_each_nested(attr, br_spec, rem) { + __u16 mode; + + if (nla_type(attr) != IFLA_BRIDGE_MODE) + continue; + mode = nla_get_u16(attr); + if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB) + return -EINVAL; + /* Continue if bridge mode is not being flipped */ + if (mode == pf_sw->bridge_mode) + continue; + /* Iterates through the PF VSI list and update the loopback + * mode of the VSI + */ + ice_for_each_vsi(pf, v) { + if (!pf->vsi[v]) + continue; + err = ice_vsi_update_bridge_mode(pf->vsi[v], mode); + if (err) + return err; + } + + hw->evb_veb = (mode == BRIDGE_MODE_VEB); + /* Update the unicast switch filter rules for the corresponding + * switch of the netdev + */ + err = ice_update_sw_rule_bridge_mode(hw); + if (err) { + netdev_err(dev, "switch rule update failed, mode = %d err %d aq_err %s\n", + mode, err, + ice_aq_str(hw->adminq.sq_last_status)); + /* revert hw->evb_veb */ + hw->evb_veb = (pf_sw->bridge_mode == BRIDGE_MODE_VEB); + return err; + } + + pf_sw->bridge_mode = mode; + } + + return 0; +} + +/** + * ice_tx_timeout - Respond to a Tx Hang + * @netdev: network interface device structure + * @txqueue: Tx queue + */ +static void ice_tx_timeout(struct net_device *netdev, unsigned int txqueue) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_tx_ring *tx_ring = NULL; + struct ice_vsi *vsi = np->vsi; + struct ice_pf *pf = vsi->back; + u32 i; + + pf->tx_timeout_count++; + + /* Check if PFC is enabled for the TC to which the queue belongs + * to. If yes then Tx timeout is not caused by a hung queue, no + * need to reset and rebuild + */ + if (ice_is_pfc_causing_hung_q(pf, txqueue)) { + dev_info(ice_pf_to_dev(pf), "Fake Tx hang detected on queue %u, timeout caused by PFC storm\n", + txqueue); + return; + } + + /* now that we have an index, find the tx_ring struct */ + ice_for_each_txq(vsi, i) + if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) + if (txqueue == vsi->tx_rings[i]->q_index) { + tx_ring = vsi->tx_rings[i]; + break; + } + + /* Reset recovery level if enough time has elapsed after last timeout. + * Also ensure no new reset action happens before next timeout period. + */ + if (time_after(jiffies, (pf->tx_timeout_last_recovery + HZ * 20))) + pf->tx_timeout_recovery_level = 1; + else if (time_before(jiffies, (pf->tx_timeout_last_recovery + + netdev->watchdog_timeo))) + return; + + if (tx_ring) { + struct ice_hw *hw = &pf->hw; + u32 head, val = 0; + + head = (rd32(hw, QTX_COMM_HEAD(vsi->txq_map[txqueue])) & + QTX_COMM_HEAD_HEAD_M) >> QTX_COMM_HEAD_HEAD_S; + /* Read interrupt register */ + val = rd32(hw, GLINT_DYN_CTL(tx_ring->q_vector->reg_idx)); + + netdev_info(netdev, "tx_timeout: VSI_num: %d, Q %u, NTC: 0x%x, HW_HEAD: 0x%x, NTU: 0x%x, INT: 0x%x\n", + vsi->vsi_num, txqueue, tx_ring->next_to_clean, + head, tx_ring->next_to_use, val); + } + + pf->tx_timeout_last_recovery = jiffies; + netdev_info(netdev, "tx_timeout recovery level %d, txqueue %u\n", + pf->tx_timeout_recovery_level, txqueue); + + switch (pf->tx_timeout_recovery_level) { + case 1: + set_bit(ICE_PFR_REQ, pf->state); + break; + case 2: + set_bit(ICE_CORER_REQ, pf->state); + break; + case 3: + set_bit(ICE_GLOBR_REQ, pf->state); + break; + default: + netdev_err(netdev, "tx_timeout recovery unsuccessful, device is in unrecoverable state.\n"); + set_bit(ICE_DOWN, pf->state); + set_bit(ICE_VSI_NEEDS_RESTART, vsi->state); + set_bit(ICE_SERVICE_DIS, pf->state); + break; + } + + ice_service_task_schedule(pf); + pf->tx_timeout_recovery_level++; +} + +/** + * ice_setup_tc_cls_flower - flower classifier offloads + * @np: net device to configure + * @filter_dev: device on which filter is added + * @cls_flower: offload data + */ +static int +ice_setup_tc_cls_flower(struct ice_netdev_priv *np, + struct net_device *filter_dev, + struct flow_cls_offload *cls_flower) +{ + struct ice_vsi *vsi = np->vsi; + + if (cls_flower->common.chain_index) + return -EOPNOTSUPP; + + switch (cls_flower->command) { + case FLOW_CLS_REPLACE: + return ice_add_cls_flower(filter_dev, vsi, cls_flower); + case FLOW_CLS_DESTROY: + return ice_del_cls_flower(vsi, cls_flower); + default: + return -EINVAL; + } +} + +/** + * ice_setup_tc_block_cb - callback handler registered for TC block + * @type: TC SETUP type + * @type_data: TC flower offload data that contains user input + * @cb_priv: netdev private data + */ +static int +ice_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv) +{ + struct ice_netdev_priv *np = cb_priv; + + switch (type) { + case TC_SETUP_CLSFLOWER: + return ice_setup_tc_cls_flower(np, np->vsi->netdev, + type_data); + default: + return -EOPNOTSUPP; + } +} + +/** + * ice_validate_mqprio_qopt - Validate TCF input parameters + * @vsi: Pointer to VSI + * @mqprio_qopt: input parameters for mqprio queue configuration + * + * This function validates MQPRIO params, such as qcount (power of 2 wherever + * needed), and make sure user doesn't specify qcount and BW rate limit + * for TCs, which are more than "num_tc" + */ +static int +ice_validate_mqprio_qopt(struct ice_vsi *vsi, + struct tc_mqprio_qopt_offload *mqprio_qopt) +{ + int non_power_of_2_qcount = 0; + struct ice_pf *pf = vsi->back; + int max_rss_q_cnt = 0; + u64 sum_min_rate = 0; + struct device *dev; + int i, speed; + u8 num_tc; + + if (vsi->type != ICE_VSI_PF) + return -EINVAL; + + if (mqprio_qopt->qopt.offset[0] != 0 || + mqprio_qopt->qopt.num_tc < 1 || + mqprio_qopt->qopt.num_tc > ICE_CHNL_MAX_TC) + return -EINVAL; + + dev = ice_pf_to_dev(pf); + vsi->ch_rss_size = 0; + num_tc = mqprio_qopt->qopt.num_tc; + speed = ice_get_link_speed_kbps(vsi); + + for (i = 0; num_tc; i++) { + int qcount = mqprio_qopt->qopt.count[i]; + u64 max_rate, min_rate, rem; + + if (!qcount) + return -EINVAL; + + if (is_power_of_2(qcount)) { + if (non_power_of_2_qcount && + qcount > non_power_of_2_qcount) { + dev_err(dev, "qcount[%d] cannot be greater than non power of 2 qcount[%d]\n", + qcount, non_power_of_2_qcount); + return -EINVAL; + } + if (qcount > max_rss_q_cnt) + max_rss_q_cnt = qcount; + } else { + if (non_power_of_2_qcount && + qcount != non_power_of_2_qcount) { + dev_err(dev, "Only one non power of 2 qcount allowed[%d,%d]\n", + qcount, non_power_of_2_qcount); + return -EINVAL; + } + if (qcount < max_rss_q_cnt) { + dev_err(dev, "non power of 2 qcount[%d] cannot be less than other qcount[%d]\n", + qcount, max_rss_q_cnt); + return -EINVAL; + } + max_rss_q_cnt = qcount; + non_power_of_2_qcount = qcount; + } + + /* TC command takes input in K/N/Gbps or K/M/Gbit etc but + * converts the bandwidth rate limit into Bytes/s when + * passing it down to the driver. So convert input bandwidth + * from Bytes/s to Kbps + */ + max_rate = mqprio_qopt->max_rate[i]; + max_rate = div_u64(max_rate, ICE_BW_KBPS_DIVISOR); + + /* min_rate is minimum guaranteed rate and it can't be zero */ + min_rate = mqprio_qopt->min_rate[i]; + min_rate = div_u64(min_rate, ICE_BW_KBPS_DIVISOR); + sum_min_rate += min_rate; + + if (min_rate && min_rate < ICE_MIN_BW_LIMIT) { + dev_err(dev, "TC%d: min_rate(%llu Kbps) < %u Kbps\n", i, + min_rate, ICE_MIN_BW_LIMIT); + return -EINVAL; + } + + if (max_rate && max_rate > speed) { + dev_err(dev, "TC%d: max_rate(%llu Kbps) > link speed of %u Kbps\n", + i, max_rate, speed); + return -EINVAL; + } + + iter_div_u64_rem(min_rate, ICE_MIN_BW_LIMIT, &rem); + if (rem) { + dev_err(dev, "TC%d: Min Rate not multiple of %u Kbps", + i, ICE_MIN_BW_LIMIT); + return -EINVAL; + } + + iter_div_u64_rem(max_rate, ICE_MIN_BW_LIMIT, &rem); + if (rem) { + dev_err(dev, "TC%d: Max Rate not multiple of %u Kbps", + i, ICE_MIN_BW_LIMIT); + return -EINVAL; + } + + /* min_rate can't be more than max_rate, except when max_rate + * is zero (implies max_rate sought is max line rate). In such + * a case min_rate can be more than max. + */ + if (max_rate && min_rate > max_rate) { + dev_err(dev, "min_rate %llu Kbps can't be more than max_rate %llu Kbps\n", + min_rate, max_rate); + return -EINVAL; + } + + if (i >= mqprio_qopt->qopt.num_tc - 1) + break; + if (mqprio_qopt->qopt.offset[i + 1] != + (mqprio_qopt->qopt.offset[i] + qcount)) + return -EINVAL; + } + if (vsi->num_rxq < + (mqprio_qopt->qopt.offset[i] + mqprio_qopt->qopt.count[i])) + return -EINVAL; + if (vsi->num_txq < + (mqprio_qopt->qopt.offset[i] + mqprio_qopt->qopt.count[i])) + return -EINVAL; + + if (sum_min_rate && sum_min_rate > (u64)speed) { + dev_err(dev, "Invalid min Tx rate(%llu) Kbps > speed (%u) Kbps specified\n", + sum_min_rate, speed); + return -EINVAL; + } + + /* make sure vsi->ch_rss_size is set correctly based on TC's qcount */ + vsi->ch_rss_size = max_rss_q_cnt; + + return 0; +} + +/** + * ice_add_vsi_to_fdir - add a VSI to the flow director group for PF + * @pf: ptr to PF device + * @vsi: ptr to VSI + */ +static int ice_add_vsi_to_fdir(struct ice_pf *pf, struct ice_vsi *vsi) +{ + struct device *dev = ice_pf_to_dev(pf); + bool added = false; + struct ice_hw *hw; + int flow; + + if (!(vsi->num_gfltr || vsi->num_bfltr)) + return -EINVAL; + + hw = &pf->hw; + for (flow = 0; flow < ICE_FLTR_PTYPE_MAX; flow++) { + struct ice_fd_hw_prof *prof; + int tun, status; + u64 entry_h; + + if (!(hw->fdir_prof && hw->fdir_prof[flow] && + hw->fdir_prof[flow]->cnt)) + continue; + + for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) { + enum ice_flow_priority prio; + u64 prof_id; + + /* add this VSI to FDir profile for this flow */ + prio = ICE_FLOW_PRIO_NORMAL; + prof = hw->fdir_prof[flow]; + prof_id = flow + tun * ICE_FLTR_PTYPE_MAX; + status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, + prof->vsi_h[0], vsi->idx, + prio, prof->fdir_seg[tun], + &entry_h); + if (status) { + dev_err(dev, "channel VSI idx %d, not able to add to group %d\n", + vsi->idx, flow); + continue; + } + + prof->entry_h[prof->cnt][tun] = entry_h; + } + + /* store VSI for filter replay and delete */ + prof->vsi_h[prof->cnt] = vsi->idx; + prof->cnt++; + + added = true; + dev_dbg(dev, "VSI idx %d added to fdir group %d\n", vsi->idx, + flow); + } + + if (!added) + dev_dbg(dev, "VSI idx %d not added to fdir groups\n", vsi->idx); + + return 0; +} + +/** + * ice_add_channel - add a channel by adding VSI + * @pf: ptr to PF device + * @sw_id: underlying HW switching element ID + * @ch: ptr to channel structure + * + * Add a channel (VSI) using add_vsi and queue_map + */ +static int ice_add_channel(struct ice_pf *pf, u16 sw_id, struct ice_channel *ch) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_vsi *vsi; + + if (ch->type != ICE_VSI_CHNL) { + dev_err(dev, "add new VSI failed, ch->type %d\n", ch->type); + return -EINVAL; + } + + vsi = ice_chnl_vsi_setup(pf, pf->hw.port_info, ch); + if (!vsi || vsi->type != ICE_VSI_CHNL) { + dev_err(dev, "create chnl VSI failure\n"); + return -EINVAL; + } + + ice_add_vsi_to_fdir(pf, vsi); + + ch->sw_id = sw_id; + ch->vsi_num = vsi->vsi_num; + ch->info.mapping_flags = vsi->info.mapping_flags; + ch->ch_vsi = vsi; + /* set the back pointer of channel for newly created VSI */ + vsi->ch = ch; + + memcpy(&ch->info.q_mapping, &vsi->info.q_mapping, + sizeof(vsi->info.q_mapping)); + memcpy(&ch->info.tc_mapping, vsi->info.tc_mapping, + sizeof(vsi->info.tc_mapping)); + + return 0; +} + +/** + * ice_chnl_cfg_res + * @vsi: the VSI being setup + * @ch: ptr to channel structure + * + * Configure channel specific resources such as rings, vector. + */ +static void ice_chnl_cfg_res(struct ice_vsi *vsi, struct ice_channel *ch) +{ + int i; + + for (i = 0; i < ch->num_txq; i++) { + struct ice_q_vector *tx_q_vector, *rx_q_vector; + struct ice_ring_container *rc; + struct ice_tx_ring *tx_ring; + struct ice_rx_ring *rx_ring; + + tx_ring = vsi->tx_rings[ch->base_q + i]; + rx_ring = vsi->rx_rings[ch->base_q + i]; + if (!tx_ring || !rx_ring) + continue; + + /* setup ring being channel enabled */ + tx_ring->ch = ch; + rx_ring->ch = ch; + + /* following code block sets up vector specific attributes */ + tx_q_vector = tx_ring->q_vector; + rx_q_vector = rx_ring->q_vector; + if (!tx_q_vector && !rx_q_vector) + continue; + + if (tx_q_vector) { + tx_q_vector->ch = ch; + /* setup Tx and Rx ITR setting if DIM is off */ + rc = &tx_q_vector->tx; + if (!ITR_IS_DYNAMIC(rc)) + ice_write_itr(rc, rc->itr_setting); + } + if (rx_q_vector) { + rx_q_vector->ch = ch; + /* setup Tx and Rx ITR setting if DIM is off */ + rc = &rx_q_vector->rx; + if (!ITR_IS_DYNAMIC(rc)) + ice_write_itr(rc, rc->itr_setting); + } + } + + /* it is safe to assume that, if channel has non-zero num_t[r]xq, then + * GLINT_ITR register would have written to perform in-context + * update, hence perform flush + */ + if (ch->num_txq || ch->num_rxq) + ice_flush(&vsi->back->hw); +} + +/** + * ice_cfg_chnl_all_res - configure channel resources + * @vsi: pte to main_vsi + * @ch: ptr to channel structure + * + * This function configures channel specific resources such as flow-director + * counter index, and other resources such as queues, vectors, ITR settings + */ +static void +ice_cfg_chnl_all_res(struct ice_vsi *vsi, struct ice_channel *ch) +{ + /* configure channel (aka ADQ) resources such as queues, vectors, + * ITR settings for channel specific vectors and anything else + */ + ice_chnl_cfg_res(vsi, ch); +} + +/** + * ice_setup_hw_channel - setup new channel + * @pf: ptr to PF device + * @vsi: the VSI being setup + * @ch: ptr to channel structure + * @sw_id: underlying HW switching element ID + * @type: type of channel to be created (VMDq2/VF) + * + * Setup new channel (VSI) based on specified type (VMDq2/VF) + * and configures Tx rings accordingly + */ +static int +ice_setup_hw_channel(struct ice_pf *pf, struct ice_vsi *vsi, + struct ice_channel *ch, u16 sw_id, u8 type) +{ + struct device *dev = ice_pf_to_dev(pf); + int ret; + + ch->base_q = vsi->next_base_q; + ch->type = type; + + ret = ice_add_channel(pf, sw_id, ch); + if (ret) { + dev_err(dev, "failed to add_channel using sw_id %u\n", sw_id); + return ret; + } + + /* configure/setup ADQ specific resources */ + ice_cfg_chnl_all_res(vsi, ch); + + /* make sure to update the next_base_q so that subsequent channel's + * (aka ADQ) VSI queue map is correct + */ + vsi->next_base_q = vsi->next_base_q + ch->num_rxq; + dev_dbg(dev, "added channel: vsi_num %u, num_rxq %u\n", ch->vsi_num, + ch->num_rxq); + + return 0; +} + +/** + * ice_setup_channel - setup new channel using uplink element + * @pf: ptr to PF device + * @vsi: the VSI being setup + * @ch: ptr to channel structure + * + * Setup new channel (VSI) based on specified type (VMDq2/VF) + * and uplink switching element + */ +static bool +ice_setup_channel(struct ice_pf *pf, struct ice_vsi *vsi, + struct ice_channel *ch) +{ + struct device *dev = ice_pf_to_dev(pf); + u16 sw_id; + int ret; + + if (vsi->type != ICE_VSI_PF) { + dev_err(dev, "unsupported parent VSI type(%d)\n", vsi->type); + return false; + } + + sw_id = pf->first_sw->sw_id; + + /* create channel (VSI) */ + ret = ice_setup_hw_channel(pf, vsi, ch, sw_id, ICE_VSI_CHNL); + if (ret) { + dev_err(dev, "failed to setup hw_channel\n"); + return false; + } + dev_dbg(dev, "successfully created channel()\n"); + + return ch->ch_vsi ? true : false; +} + +/** + * ice_set_bw_limit - setup BW limit for Tx traffic based on max_tx_rate + * @vsi: VSI to be configured + * @max_tx_rate: max Tx rate in Kbps to be configured as maximum BW limit + * @min_tx_rate: min Tx rate in Kbps to be configured as minimum BW limit + */ +static int +ice_set_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate, u64 min_tx_rate) +{ + int err; + + err = ice_set_min_bw_limit(vsi, min_tx_rate); + if (err) + return err; + + return ice_set_max_bw_limit(vsi, max_tx_rate); +} + +/** + * ice_create_q_channel - function to create channel + * @vsi: VSI to be configured + * @ch: ptr to channel (it contains channel specific params) + * + * This function creates channel (VSI) using num_queues specified by user, + * reconfigs RSS if needed. + */ +static int ice_create_q_channel(struct ice_vsi *vsi, struct ice_channel *ch) +{ + struct ice_pf *pf = vsi->back; + struct device *dev; + + if (!ch) + return -EINVAL; + + dev = ice_pf_to_dev(pf); + if (!ch->num_txq || !ch->num_rxq) { + dev_err(dev, "Invalid num_queues requested: %d\n", ch->num_rxq); + return -EINVAL; + } + + if (!vsi->cnt_q_avail || vsi->cnt_q_avail < ch->num_txq) { + dev_err(dev, "cnt_q_avail (%u) less than num_queues %d\n", + vsi->cnt_q_avail, ch->num_txq); + return -EINVAL; + } + + if (!ice_setup_channel(pf, vsi, ch)) { + dev_info(dev, "Failed to setup channel\n"); + return -EINVAL; + } + /* configure BW rate limit */ + if (ch->ch_vsi && (ch->max_tx_rate || ch->min_tx_rate)) { + int ret; + + ret = ice_set_bw_limit(ch->ch_vsi, ch->max_tx_rate, + ch->min_tx_rate); + if (ret) + dev_err(dev, "failed to set Tx rate of %llu Kbps for VSI(%u)\n", + ch->max_tx_rate, ch->ch_vsi->vsi_num); + else + dev_dbg(dev, "set Tx rate of %llu Kbps for VSI(%u)\n", + ch->max_tx_rate, ch->ch_vsi->vsi_num); + } + + vsi->cnt_q_avail -= ch->num_txq; + + return 0; +} + +/** + * ice_rem_all_chnl_fltrs - removes all channel filters + * @pf: ptr to PF, TC-flower based filter are tracked at PF level + * + * Remove all advanced switch filters only if they are channel specific + * tc-flower based filter + */ +static void ice_rem_all_chnl_fltrs(struct ice_pf *pf) +{ + struct ice_tc_flower_fltr *fltr; + struct hlist_node *node; + + /* to remove all channel filters, iterate an ordered list of filters */ + hlist_for_each_entry_safe(fltr, node, + &pf->tc_flower_fltr_list, + tc_flower_node) { + struct ice_rule_query_data rule; + int status; + + /* for now process only channel specific filters */ + if (!ice_is_chnl_fltr(fltr)) + continue; + + rule.rid = fltr->rid; + rule.rule_id = fltr->rule_id; + rule.vsi_handle = fltr->dest_id; + status = ice_rem_adv_rule_by_id(&pf->hw, &rule); + if (status) { + if (status == -ENOENT) + dev_dbg(ice_pf_to_dev(pf), "TC flower filter (rule_id %u) does not exist\n", + rule.rule_id); + else + dev_err(ice_pf_to_dev(pf), "failed to delete TC flower filter, status %d\n", + status); + } else if (fltr->dest_vsi) { + /* update advanced switch filter count */ + if (fltr->dest_vsi->type == ICE_VSI_CHNL) { + u32 flags = fltr->flags; + + fltr->dest_vsi->num_chnl_fltr--; + if (flags & (ICE_TC_FLWR_FIELD_DST_MAC | + ICE_TC_FLWR_FIELD_ENC_DST_MAC)) + pf->num_dmac_chnl_fltrs--; + } + } + + hlist_del(&fltr->tc_flower_node); + kfree(fltr); + } +} + +/** + * ice_remove_q_channels - Remove queue channels for the TCs + * @vsi: VSI to be configured + * @rem_fltr: delete advanced switch filter or not + * + * Remove queue channels for the TCs + */ +static void ice_remove_q_channels(struct ice_vsi *vsi, bool rem_fltr) +{ + struct ice_channel *ch, *ch_tmp; + struct ice_pf *pf = vsi->back; + int i; + + /* remove all tc-flower based filter if they are channel filters only */ + if (rem_fltr) + ice_rem_all_chnl_fltrs(pf); + + /* remove ntuple filters since queue configuration is being changed */ + if (vsi->netdev->features & NETIF_F_NTUPLE) { + struct ice_hw *hw = &pf->hw; + + mutex_lock(&hw->fdir_fltr_lock); + ice_fdir_del_all_fltrs(vsi); + mutex_unlock(&hw->fdir_fltr_lock); + } + + /* perform cleanup for channels if they exist */ + list_for_each_entry_safe(ch, ch_tmp, &vsi->ch_list, list) { + struct ice_vsi *ch_vsi; + + list_del(&ch->list); + ch_vsi = ch->ch_vsi; + if (!ch_vsi) { + kfree(ch); + continue; + } + + /* Reset queue contexts */ + for (i = 0; i < ch->num_rxq; i++) { + struct ice_tx_ring *tx_ring; + struct ice_rx_ring *rx_ring; + + tx_ring = vsi->tx_rings[ch->base_q + i]; + rx_ring = vsi->rx_rings[ch->base_q + i]; + if (tx_ring) { + tx_ring->ch = NULL; + if (tx_ring->q_vector) + tx_ring->q_vector->ch = NULL; + } + if (rx_ring) { + rx_ring->ch = NULL; + if (rx_ring->q_vector) + rx_ring->q_vector->ch = NULL; + } + } + + /* Release FD resources for the channel VSI */ + ice_fdir_rem_adq_chnl(&pf->hw, ch->ch_vsi->idx); + + /* clear the VSI from scheduler tree */ + ice_rm_vsi_lan_cfg(ch->ch_vsi->port_info, ch->ch_vsi->idx); + + /* Delete VSI from FW */ + ice_vsi_delete(ch->ch_vsi); + + /* Delete VSI from PF and HW VSI arrays */ + ice_vsi_clear(ch->ch_vsi); + + /* free the channel */ + kfree(ch); + } + + /* clear the channel VSI map which is stored in main VSI */ + ice_for_each_chnl_tc(i) + vsi->tc_map_vsi[i] = NULL; + + /* reset main VSI's all TC information */ + vsi->all_enatc = 0; + vsi->all_numtc = 0; +} + +/** + * ice_rebuild_channels - rebuild channel + * @pf: ptr to PF + * + * Recreate channel VSIs and replay filters + */ +static int ice_rebuild_channels(struct ice_pf *pf) +{ + struct device *dev = ice_pf_to_dev(pf); + struct ice_vsi *main_vsi; + bool rem_adv_fltr = true; + struct ice_channel *ch; + struct ice_vsi *vsi; + int tc_idx = 1; + int i, err; + + main_vsi = ice_get_main_vsi(pf); + if (!main_vsi) + return 0; + + if (!test_bit(ICE_FLAG_TC_MQPRIO, pf->flags) || + main_vsi->old_numtc == 1) + return 0; /* nothing to be done */ + + /* reconfigure main VSI based on old value of TC and cached values + * for MQPRIO opts + */ + err = ice_vsi_cfg_tc(main_vsi, main_vsi->old_ena_tc); + if (err) { + dev_err(dev, "failed configuring TC(ena_tc:0x%02x) for HW VSI=%u\n", + main_vsi->old_ena_tc, main_vsi->vsi_num); + return err; + } + + /* rebuild ADQ VSIs */ + ice_for_each_vsi(pf, i) { + enum ice_vsi_type type; + + vsi = pf->vsi[i]; + if (!vsi || vsi->type != ICE_VSI_CHNL) + continue; + + type = vsi->type; + + /* rebuild ADQ VSI */ + err = ice_vsi_rebuild(vsi, true); + if (err) { + dev_err(dev, "VSI (type:%s) at index %d rebuild failed, err %d\n", + ice_vsi_type_str(type), vsi->idx, err); + goto cleanup; + } + + /* Re-map HW VSI number, using VSI handle that has been + * previously validated in ice_replay_vsi() call above + */ + vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx); + + /* replay filters for the VSI */ + err = ice_replay_vsi(&pf->hw, vsi->idx); + if (err) { + dev_err(dev, "VSI (type:%s) replay failed, err %d, VSI index %d\n", + ice_vsi_type_str(type), err, vsi->idx); + rem_adv_fltr = false; + goto cleanup; + } + dev_info(dev, "VSI (type:%s) at index %d rebuilt successfully\n", + ice_vsi_type_str(type), vsi->idx); + + /* store ADQ VSI at correct TC index in main VSI's + * map of TC to VSI + */ + main_vsi->tc_map_vsi[tc_idx++] = vsi; + } + + /* ADQ VSI(s) has been rebuilt successfully, so setup + * channel for main VSI's Tx and Rx rings + */ + list_for_each_entry(ch, &main_vsi->ch_list, list) { + struct ice_vsi *ch_vsi; + + ch_vsi = ch->ch_vsi; + if (!ch_vsi) + continue; + + /* reconfig channel resources */ + ice_cfg_chnl_all_res(main_vsi, ch); + + /* replay BW rate limit if it is non-zero */ + if (!ch->max_tx_rate && !ch->min_tx_rate) + continue; + + err = ice_set_bw_limit(ch_vsi, ch->max_tx_rate, + ch->min_tx_rate); + if (err) + dev_err(dev, "failed (err:%d) to rebuild BW rate limit, max_tx_rate: %llu Kbps, min_tx_rate: %llu Kbps for VSI(%u)\n", + err, ch->max_tx_rate, ch->min_tx_rate, + ch_vsi->vsi_num); + else + dev_dbg(dev, "successfully rebuild BW rate limit, max_tx_rate: %llu Kbps, min_tx_rate: %llu Kbps for VSI(%u)\n", + ch->max_tx_rate, ch->min_tx_rate, + ch_vsi->vsi_num); + } + + /* reconfig RSS for main VSI */ + if (main_vsi->ch_rss_size) + ice_vsi_cfg_rss_lut_key(main_vsi); + + return 0; + +cleanup: + ice_remove_q_channels(main_vsi, rem_adv_fltr); + return err; +} + +/** + * ice_create_q_channels - Add queue channel for the given TCs + * @vsi: VSI to be configured + * + * Configures queue channel mapping to the given TCs + */ +static int ice_create_q_channels(struct ice_vsi *vsi) +{ + struct ice_pf *pf = vsi->back; + struct ice_channel *ch; + int ret = 0, i; + + ice_for_each_chnl_tc(i) { + if (!(vsi->all_enatc & BIT(i))) + continue; + + ch = kzalloc(sizeof(*ch), GFP_KERNEL); + if (!ch) { + ret = -ENOMEM; + goto err_free; + } + INIT_LIST_HEAD(&ch->list); + ch->num_rxq = vsi->mqprio_qopt.qopt.count[i]; + ch->num_txq = vsi->mqprio_qopt.qopt.count[i]; + ch->base_q = vsi->mqprio_qopt.qopt.offset[i]; + ch->max_tx_rate = vsi->mqprio_qopt.max_rate[i]; + ch->min_tx_rate = vsi->mqprio_qopt.min_rate[i]; + + /* convert to Kbits/s */ + if (ch->max_tx_rate) + ch->max_tx_rate = div_u64(ch->max_tx_rate, + ICE_BW_KBPS_DIVISOR); + if (ch->min_tx_rate) + ch->min_tx_rate = div_u64(ch->min_tx_rate, + ICE_BW_KBPS_DIVISOR); + + ret = ice_create_q_channel(vsi, ch); + if (ret) { + dev_err(ice_pf_to_dev(pf), + "failed creating channel TC:%d\n", i); + kfree(ch); + goto err_free; + } + list_add_tail(&ch->list, &vsi->ch_list); + vsi->tc_map_vsi[i] = ch->ch_vsi; + dev_dbg(ice_pf_to_dev(pf), + "successfully created channel: VSI %pK\n", ch->ch_vsi); + } + return 0; + +err_free: + ice_remove_q_channels(vsi, false); + + return ret; +} + +/** + * ice_setup_tc_mqprio_qdisc - configure multiple traffic classes + * @netdev: net device to configure + * @type_data: TC offload data + */ +static int ice_setup_tc_mqprio_qdisc(struct net_device *netdev, void *type_data) +{ + struct tc_mqprio_qopt_offload *mqprio_qopt = type_data; + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + struct ice_pf *pf = vsi->back; + u16 mode, ena_tc_qdisc = 0; + int cur_txq, cur_rxq; + u8 hw = 0, num_tcf; + struct device *dev; + int ret, i; + + dev = ice_pf_to_dev(pf); + num_tcf = mqprio_qopt->qopt.num_tc; + hw = mqprio_qopt->qopt.hw; + mode = mqprio_qopt->mode; + if (!hw) { + clear_bit(ICE_FLAG_TC_MQPRIO, pf->flags); + vsi->ch_rss_size = 0; + memcpy(&vsi->mqprio_qopt, mqprio_qopt, sizeof(*mqprio_qopt)); + goto config_tcf; + } + + /* Generate queue region map for number of TCF requested */ + for (i = 0; i < num_tcf; i++) + ena_tc_qdisc |= BIT(i); + + switch (mode) { + case TC_MQPRIO_MODE_CHANNEL: + + ret = ice_validate_mqprio_qopt(vsi, mqprio_qopt); + if (ret) { + netdev_err(netdev, "failed to validate_mqprio_qopt(), ret %d\n", + ret); + return ret; + } + memcpy(&vsi->mqprio_qopt, mqprio_qopt, sizeof(*mqprio_qopt)); + set_bit(ICE_FLAG_TC_MQPRIO, pf->flags); + /* don't assume state of hw_tc_offload during driver load + * and set the flag for TC flower filter if hw_tc_offload + * already ON + */ + if (vsi->netdev->features & NETIF_F_HW_TC) + set_bit(ICE_FLAG_CLS_FLOWER, pf->flags); + break; + default: + return -EINVAL; + } + +config_tcf: + + /* Requesting same TCF configuration as already enabled */ + if (ena_tc_qdisc == vsi->tc_cfg.ena_tc && + mode != TC_MQPRIO_MODE_CHANNEL) + return 0; + + /* Pause VSI queues */ + ice_dis_vsi(vsi, true); + + if (!hw && !test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) + ice_remove_q_channels(vsi, true); + + if (!hw && !test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) { + vsi->req_txq = min_t(int, ice_get_avail_txq_count(pf), + num_online_cpus()); + vsi->req_rxq = min_t(int, ice_get_avail_rxq_count(pf), + num_online_cpus()); + } else { + /* logic to rebuild VSI, same like ethtool -L */ + u16 offset = 0, qcount_tx = 0, qcount_rx = 0; + + for (i = 0; i < num_tcf; i++) { + if (!(ena_tc_qdisc & BIT(i))) + continue; + + offset = vsi->mqprio_qopt.qopt.offset[i]; + qcount_rx = vsi->mqprio_qopt.qopt.count[i]; + qcount_tx = vsi->mqprio_qopt.qopt.count[i]; + } + vsi->req_txq = offset + qcount_tx; + vsi->req_rxq = offset + qcount_rx; + + /* store away original rss_size info, so that it gets reused + * form ice_vsi_rebuild during tc-qdisc delete stage - to + * determine, what should be the rss_sizefor main VSI + */ + vsi->orig_rss_size = vsi->rss_size; + } + + /* save current values of Tx and Rx queues before calling VSI rebuild + * for fallback option + */ + cur_txq = vsi->num_txq; + cur_rxq = vsi->num_rxq; + + /* proceed with rebuild main VSI using correct number of queues */ + ret = ice_vsi_rebuild(vsi, false); + if (ret) { + /* fallback to current number of queues */ + dev_info(dev, "Rebuild failed with new queues, try with current number of queues\n"); + vsi->req_txq = cur_txq; + vsi->req_rxq = cur_rxq; + clear_bit(ICE_RESET_FAILED, pf->state); + if (ice_vsi_rebuild(vsi, false)) { + dev_err(dev, "Rebuild of main VSI failed again\n"); + return ret; + } + } + + vsi->all_numtc = num_tcf; + vsi->all_enatc = ena_tc_qdisc; + ret = ice_vsi_cfg_tc(vsi, ena_tc_qdisc); + if (ret) { + netdev_err(netdev, "failed configuring TC for VSI id=%d\n", + vsi->vsi_num); + goto exit; + } + + if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) { + u64 max_tx_rate = vsi->mqprio_qopt.max_rate[0]; + u64 min_tx_rate = vsi->mqprio_qopt.min_rate[0]; + + /* set TC0 rate limit if specified */ + if (max_tx_rate || min_tx_rate) { + /* convert to Kbits/s */ + if (max_tx_rate) + max_tx_rate = div_u64(max_tx_rate, ICE_BW_KBPS_DIVISOR); + if (min_tx_rate) + min_tx_rate = div_u64(min_tx_rate, ICE_BW_KBPS_DIVISOR); + + ret = ice_set_bw_limit(vsi, max_tx_rate, min_tx_rate); + if (!ret) { + dev_dbg(dev, "set Tx rate max %llu min %llu for VSI(%u)\n", + max_tx_rate, min_tx_rate, vsi->vsi_num); + } else { + dev_err(dev, "failed to set Tx rate max %llu min %llu for VSI(%u)\n", + max_tx_rate, min_tx_rate, vsi->vsi_num); + goto exit; + } + } + ret = ice_create_q_channels(vsi); + if (ret) { + netdev_err(netdev, "failed configuring queue channels\n"); + goto exit; + } else { + netdev_dbg(netdev, "successfully configured channels\n"); + } + } + + if (vsi->ch_rss_size) + ice_vsi_cfg_rss_lut_key(vsi); + +exit: + /* if error, reset the all_numtc and all_enatc */ + if (ret) { + vsi->all_numtc = 0; + vsi->all_enatc = 0; + } + /* resume VSI */ + ice_ena_vsi(vsi, true); + + return ret; +} + +static LIST_HEAD(ice_block_cb_list); + +static int +ice_setup_tc(struct net_device *netdev, enum tc_setup_type type, + void *type_data) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_pf *pf = np->vsi->back; + bool locked = false; + int err; + + switch (type) { + case TC_SETUP_BLOCK: + return flow_block_cb_setup_simple(type_data, + &ice_block_cb_list, + ice_setup_tc_block_cb, + np, np, true); + case TC_SETUP_QDISC_MQPRIO: + if (ice_is_eswitch_mode_switchdev(pf)) { + netdev_err(netdev, "TC MQPRIO offload not supported, switchdev is enabled\n"); + return -EOPNOTSUPP; + } + + if (pf->adev) { + mutex_lock(&pf->adev_mutex); + device_lock(&pf->adev->dev); + locked = true; + if (pf->adev->dev.driver) { + netdev_err(netdev, "Cannot change qdisc when RDMA is active\n"); + err = -EBUSY; + goto adev_unlock; + } + } + + /* setup traffic classifier for receive side */ + mutex_lock(&pf->tc_mutex); + err = ice_setup_tc_mqprio_qdisc(netdev, type_data); + mutex_unlock(&pf->tc_mutex); + +adev_unlock: + if (locked) { + device_unlock(&pf->adev->dev); + mutex_unlock(&pf->adev_mutex); + } + return err; + default: + return -EOPNOTSUPP; + } + return -EOPNOTSUPP; +} + +static struct ice_indr_block_priv * +ice_indr_block_priv_lookup(struct ice_netdev_priv *np, + struct net_device *netdev) +{ + struct ice_indr_block_priv *cb_priv; + + list_for_each_entry(cb_priv, &np->tc_indr_block_priv_list, list) { + if (!cb_priv->netdev) + return NULL; + if (cb_priv->netdev == netdev) + return cb_priv; + } + return NULL; +} + +static int +ice_indr_setup_block_cb(enum tc_setup_type type, void *type_data, + void *indr_priv) +{ + struct ice_indr_block_priv *priv = indr_priv; + struct ice_netdev_priv *np = priv->np; + + switch (type) { + case TC_SETUP_CLSFLOWER: + return ice_setup_tc_cls_flower(np, priv->netdev, + (struct flow_cls_offload *) + type_data); + default: + return -EOPNOTSUPP; + } +} + +static int +ice_indr_setup_tc_block(struct net_device *netdev, struct Qdisc *sch, + struct ice_netdev_priv *np, + struct flow_block_offload *f, void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) +{ + struct ice_indr_block_priv *indr_priv; + struct flow_block_cb *block_cb; + + if (!ice_is_tunnel_supported(netdev) && + !(is_vlan_dev(netdev) && + vlan_dev_real_dev(netdev) == np->vsi->netdev)) + return -EOPNOTSUPP; + + if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) + return -EOPNOTSUPP; + + switch (f->command) { + case FLOW_BLOCK_BIND: + indr_priv = ice_indr_block_priv_lookup(np, netdev); + if (indr_priv) + return -EEXIST; + + indr_priv = kzalloc(sizeof(*indr_priv), GFP_KERNEL); + if (!indr_priv) + return -ENOMEM; + + indr_priv->netdev = netdev; + indr_priv->np = np; + list_add(&indr_priv->list, &np->tc_indr_block_priv_list); + + block_cb = + flow_indr_block_cb_alloc(ice_indr_setup_block_cb, + indr_priv, indr_priv, + ice_rep_indr_tc_block_unbind, + f, netdev, sch, data, np, + cleanup); + + if (IS_ERR(block_cb)) { + list_del(&indr_priv->list); + kfree(indr_priv); + return PTR_ERR(block_cb); + } + flow_block_cb_add(block_cb, f); + list_add_tail(&block_cb->driver_list, &ice_block_cb_list); + break; + case FLOW_BLOCK_UNBIND: + indr_priv = ice_indr_block_priv_lookup(np, netdev); + if (!indr_priv) + return -ENOENT; + + block_cb = flow_block_cb_lookup(f->block, + ice_indr_setup_block_cb, + indr_priv); + if (!block_cb) + return -ENOENT; + + flow_indr_block_cb_remove(block_cb, f); + + list_del(&block_cb->driver_list); + break; + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int +ice_indr_setup_tc_cb(struct net_device *netdev, struct Qdisc *sch, + void *cb_priv, enum tc_setup_type type, void *type_data, + void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) +{ + switch (type) { + case TC_SETUP_BLOCK: + return ice_indr_setup_tc_block(netdev, sch, cb_priv, type_data, + data, cleanup); + + default: + return -EOPNOTSUPP; + } +} + +/** + * ice_open - Called when a network interface becomes active + * @netdev: network interface device structure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). At this point all resources needed + * for transmit and receive operations are allocated, the interrupt + * handler is registered with the OS, the netdev watchdog is enabled, + * and the stack is notified that the interface is ready. + * + * Returns 0 on success, negative value on failure + */ +int ice_open(struct net_device *netdev) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_pf *pf = np->vsi->back; + + if (ice_is_reset_in_progress(pf->state)) { + netdev_err(netdev, "can't open net device while reset is in progress"); + return -EBUSY; + } + + return ice_open_internal(netdev); +} + +/** + * ice_open_internal - Called when a network interface becomes active + * @netdev: network interface device structure + * + * Internal ice_open implementation. Should not be used directly except for ice_open and reset + * handling routine + * + * Returns 0 on success, negative value on failure + */ +int ice_open_internal(struct net_device *netdev) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + struct ice_pf *pf = vsi->back; + struct ice_port_info *pi; + int err; + + if (test_bit(ICE_NEEDS_RESTART, pf->state)) { + netdev_err(netdev, "driver needs to be unloaded and reloaded\n"); + return -EIO; + } + + netif_carrier_off(netdev); + + pi = vsi->port_info; + err = ice_update_link_info(pi); + if (err) { + netdev_err(netdev, "Failed to get link info, error %d\n", err); + return err; + } + + ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err); + + /* Set PHY if there is media, otherwise, turn off PHY */ + if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) { + clear_bit(ICE_FLAG_NO_MEDIA, pf->flags); + if (!test_bit(ICE_PHY_INIT_COMPLETE, pf->state)) { + err = ice_init_phy_user_cfg(pi); + if (err) { + netdev_err(netdev, "Failed to initialize PHY settings, error %d\n", + err); + return err; + } + } + + err = ice_configure_phy(vsi); + if (err) { + netdev_err(netdev, "Failed to set physical link up, error %d\n", + err); + return err; + } + } else { + set_bit(ICE_FLAG_NO_MEDIA, pf->flags); + ice_set_link(vsi, false); + } + + err = ice_vsi_open(vsi); + if (err) + netdev_err(netdev, "Failed to open VSI 0x%04X on switch 0x%04X\n", + vsi->vsi_num, vsi->vsw->sw_id); + + /* Update existing tunnels information */ + udp_tunnel_get_rx_info(netdev); + + return err; +} + +/** + * ice_stop - Disables a network interface + * @netdev: network interface device structure + * + * The stop entry point is called when an interface is de-activated by the OS, + * and the netdevice enters the DOWN state. The hardware is still under the + * driver's control, but the netdev interface is disabled. + * + * Returns success only - not allowed to fail + */ +int ice_stop(struct net_device *netdev) +{ + struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_vsi *vsi = np->vsi; + struct ice_pf *pf = vsi->back; + + if (ice_is_reset_in_progress(pf->state)) { + netdev_err(netdev, "can't stop net device while reset is in progress"); + return -EBUSY; + } + + if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags)) { + int link_err = ice_force_phys_link_state(vsi, false); + + if (link_err) { + if (link_err == -ENOMEDIUM) + netdev_info(vsi->netdev, "Skipping link reconfig - no media attached, VSI %d\n", + vsi->vsi_num); + else + netdev_err(vsi->netdev, "Failed to set physical link down, VSI %d error %d\n", + vsi->vsi_num, link_err); + + ice_vsi_close(vsi); + return -EIO; + } + } + + ice_vsi_close(vsi); + + return 0; +} + +/** + * ice_features_check - Validate encapsulated packet conforms to limits + * @skb: skb buffer + * @netdev: This port's netdev + * @features: Offload features that the stack believes apply + */ +static netdev_features_t +ice_features_check(struct sk_buff *skb, + struct net_device __always_unused *netdev, + netdev_features_t features) +{ + bool gso = skb_is_gso(skb); + size_t len; + + /* No point in doing any of this if neither checksum nor GSO are + * being requested for this frame. We can rule out both by just + * checking for CHECKSUM_PARTIAL + */ + if (skb->ip_summed != CHECKSUM_PARTIAL) + return features; + + /* We cannot support GSO if the MSS is going to be less than + * 64 bytes. If it is then we need to drop support for GSO. + */ + if (gso && (skb_shinfo(skb)->gso_size < ICE_TXD_CTX_MIN_MSS)) + features &= ~NETIF_F_GSO_MASK; + + len = skb_network_offset(skb); + if (len > ICE_TXD_MACLEN_MAX || len & 0x1) + goto out_rm_features; + + len = skb_network_header_len(skb); + if (len > ICE_TXD_IPLEN_MAX || len & 0x1) + goto out_rm_features; + + if (skb->encapsulation) { + /* this must work for VXLAN frames AND IPIP/SIT frames, and in + * the case of IPIP frames, the transport header pointer is + * after the inner header! So check to make sure that this + * is a GRE or UDP_TUNNEL frame before doing that math. + */ + if (gso && (skb_shinfo(skb)->gso_type & + (SKB_GSO_GRE | SKB_GSO_UDP_TUNNEL))) { + len = skb_inner_network_header(skb) - + skb_transport_header(skb); + if (len > ICE_TXD_L4LEN_MAX || len & 0x1) + goto out_rm_features; + } + + len = skb_inner_network_header_len(skb); + if (len > ICE_TXD_IPLEN_MAX || len & 0x1) + goto out_rm_features; + } + + return features; +out_rm_features: + return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); +} + +static const struct net_device_ops ice_netdev_safe_mode_ops = { + .ndo_open = ice_open, + .ndo_stop = ice_stop, + .ndo_start_xmit = ice_start_xmit, + .ndo_set_mac_address = ice_set_mac_address, + .ndo_validate_addr = eth_validate_addr, + .ndo_change_mtu = ice_change_mtu, + .ndo_get_stats64 = ice_get_stats64, + .ndo_tx_timeout = ice_tx_timeout, + .ndo_bpf = ice_xdp_safe_mode, +}; + +static const struct net_device_ops ice_netdev_ops = { + .ndo_open = ice_open, + .ndo_stop = ice_stop, + .ndo_start_xmit = ice_start_xmit, + .ndo_select_queue = ice_select_queue, + .ndo_features_check = ice_features_check, + .ndo_fix_features = ice_fix_features, + .ndo_set_rx_mode = ice_set_rx_mode, + .ndo_set_mac_address = ice_set_mac_address, + .ndo_validate_addr = eth_validate_addr, + .ndo_change_mtu = ice_change_mtu, + .ndo_get_stats64 = ice_get_stats64, + .ndo_set_tx_maxrate = ice_set_tx_maxrate, + .ndo_eth_ioctl = ice_eth_ioctl, + .ndo_set_vf_spoofchk = ice_set_vf_spoofchk, + .ndo_set_vf_mac = ice_set_vf_mac, + .ndo_get_vf_config = ice_get_vf_cfg, + .ndo_set_vf_trust = ice_set_vf_trust, + .ndo_set_vf_vlan = ice_set_vf_port_vlan, + .ndo_set_vf_link_state = ice_set_vf_link_state, + .ndo_get_vf_stats = ice_get_vf_stats, + .ndo_set_vf_rate = ice_set_vf_bw, + .ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid, + .ndo_setup_tc = ice_setup_tc, + .ndo_set_features = ice_set_features, + .ndo_bridge_getlink = ice_bridge_getlink, + .ndo_bridge_setlink = ice_bridge_setlink, + .ndo_fdb_add = ice_fdb_add, + .ndo_fdb_del = ice_fdb_del, +#ifdef CONFIG_RFS_ACCEL + .ndo_rx_flow_steer = ice_rx_flow_steer, +#endif + .ndo_tx_timeout = ice_tx_timeout, + .ndo_bpf = ice_xdp, + .ndo_xdp_xmit = ice_xdp_xmit, + .ndo_xsk_wakeup = ice_xsk_wakeup, + .ndo_get_devlink_port = ice_get_devlink_port, +}; |