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Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_main.c')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_main.c9194
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, &params);
+ 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, &params);
+ 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,
+};