Merging upstream version 6.7.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2381 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/idpf/idpf_lib.c b/drivers/net/ethernet/intel/idpf/idpf_lib.c
new file mode 100644
index 0000000000..0241e498cc
--- /dev/null
+++ b/drivers/net/ethernet/intel/idpf/idpf_lib.c
@@ -0,0 +1,2381 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (C) 2023 Intel Corporation */
+
+#include "idpf.h"
+
+static const struct net_device_ops idpf_netdev_ops_splitq;
+static const struct net_device_ops idpf_netdev_ops_singleq;
+
+const char * const idpf_vport_vc_state_str[] = {
+	IDPF_FOREACH_VPORT_VC_STATE(IDPF_GEN_STRING)
+};
+
+/**
+ * idpf_init_vector_stack - Fill the MSIX vector stack with vector index
+ * @adapter: private data struct
+ *
+ * Return 0 on success, error on failure
+ */
+static int idpf_init_vector_stack(struct idpf_adapter *adapter)
+{
+	struct idpf_vector_lifo *stack;
+	u16 min_vec;
+	u32 i;
+
+	mutex_lock(&adapter->vector_lock);
+	min_vec = adapter->num_msix_entries - adapter->num_avail_msix;
+	stack = &adapter->vector_stack;
+	stack->size = adapter->num_msix_entries;
+	/* set the base and top to point at start of the 'free pool' to
+	 * distribute the unused vectors on-demand basis
+	 */
+	stack->base = min_vec;
+	stack->top = min_vec;
+
+	stack->vec_idx = kcalloc(stack->size, sizeof(u16), GFP_KERNEL);
+	if (!stack->vec_idx) {
+		mutex_unlock(&adapter->vector_lock);
+
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < stack->size; i++)
+		stack->vec_idx[i] = i;
+
+	mutex_unlock(&adapter->vector_lock);
+
+	return 0;
+}
+
+/**
+ * idpf_deinit_vector_stack - zero out the MSIX vector stack
+ * @adapter: private data struct
+ */
+static void idpf_deinit_vector_stack(struct idpf_adapter *adapter)
+{
+	struct idpf_vector_lifo *stack;
+
+	mutex_lock(&adapter->vector_lock);
+	stack = &adapter->vector_stack;
+	kfree(stack->vec_idx);
+	stack->vec_idx = NULL;
+	mutex_unlock(&adapter->vector_lock);
+}
+
+/**
+ * idpf_mb_intr_rel_irq - Free the IRQ association with the OS
+ * @adapter: adapter structure
+ *
+ * This will also disable interrupt mode and queue up mailbox task. Mailbox
+ * task will reschedule itself if not in interrupt mode.
+ */
+static void idpf_mb_intr_rel_irq(struct idpf_adapter *adapter)
+{
+	clear_bit(IDPF_MB_INTR_MODE, adapter->flags);
+	free_irq(adapter->msix_entries[0].vector, adapter);
+	queue_delayed_work(adapter->mbx_wq, &adapter->mbx_task, 0);
+}
+
+/**
+ * idpf_intr_rel - Release interrupt capabilities and free memory
+ * @adapter: adapter to disable interrupts on
+ */
+void idpf_intr_rel(struct idpf_adapter *adapter)
+{
+	int err;
+
+	if (!adapter->msix_entries)
+		return;
+
+	idpf_mb_intr_rel_irq(adapter);
+	pci_free_irq_vectors(adapter->pdev);
+
+	err = idpf_send_dealloc_vectors_msg(adapter);
+	if (err)
+		dev_err(&adapter->pdev->dev,
+			"Failed to deallocate vectors: %d\n", err);
+
+	idpf_deinit_vector_stack(adapter);
+	kfree(adapter->msix_entries);
+	adapter->msix_entries = NULL;
+}
+
+/**
+ * idpf_mb_intr_clean - Interrupt handler for the mailbox
+ * @irq: interrupt number
+ * @data: pointer to the adapter structure
+ */
+static irqreturn_t idpf_mb_intr_clean(int __always_unused irq, void *data)
+{
+	struct idpf_adapter *adapter = (struct idpf_adapter *)data;
+
+	queue_delayed_work(adapter->mbx_wq, &adapter->mbx_task, 0);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * idpf_mb_irq_enable - Enable MSIX interrupt for the mailbox
+ * @adapter: adapter to get the hardware address for register write
+ */
+static void idpf_mb_irq_enable(struct idpf_adapter *adapter)
+{
+	struct idpf_intr_reg *intr = &adapter->mb_vector.intr_reg;
+	u32 val;
+
+	val = intr->dyn_ctl_intena_m | intr->dyn_ctl_itridx_m;
+	writel(val, intr->dyn_ctl);
+	writel(intr->icr_ena_ctlq_m, intr->icr_ena);
+}
+
+/**
+ * idpf_mb_intr_req_irq - Request irq for the mailbox interrupt
+ * @adapter: adapter structure to pass to the mailbox irq handler
+ */
+static int idpf_mb_intr_req_irq(struct idpf_adapter *adapter)
+{
+	struct idpf_q_vector *mb_vector = &adapter->mb_vector;
+	int irq_num, mb_vidx = 0, err;
+
+	irq_num = adapter->msix_entries[mb_vidx].vector;
+	mb_vector->name = kasprintf(GFP_KERNEL, "%s-%s-%d",
+				    dev_driver_string(&adapter->pdev->dev),
+				    "Mailbox", mb_vidx);
+	err = request_irq(irq_num, adapter->irq_mb_handler, 0,
+			  mb_vector->name, adapter);
+	if (err) {
+		dev_err(&adapter->pdev->dev,
+			"IRQ request for mailbox failed, error: %d\n", err);
+
+		return err;
+	}
+
+	set_bit(IDPF_MB_INTR_MODE, adapter->flags);
+
+	return 0;
+}
+
+/**
+ * idpf_set_mb_vec_id - Set vector index for mailbox
+ * @adapter: adapter structure to access the vector chunks
+ *
+ * The first vector id in the requested vector chunks from the CP is for
+ * the mailbox
+ */
+static void idpf_set_mb_vec_id(struct idpf_adapter *adapter)
+{
+	if (adapter->req_vec_chunks)
+		adapter->mb_vector.v_idx =
+			le16_to_cpu(adapter->caps.mailbox_vector_id);
+	else
+		adapter->mb_vector.v_idx = 0;
+}
+
+/**
+ * idpf_mb_intr_init - Initialize the mailbox interrupt
+ * @adapter: adapter structure to store the mailbox vector
+ */
+static int idpf_mb_intr_init(struct idpf_adapter *adapter)
+{
+	adapter->dev_ops.reg_ops.mb_intr_reg_init(adapter);
+	adapter->irq_mb_handler = idpf_mb_intr_clean;
+
+	return idpf_mb_intr_req_irq(adapter);
+}
+
+/**
+ * idpf_vector_lifo_push - push MSIX vector index onto stack
+ * @adapter: private data struct
+ * @vec_idx: vector index to store
+ */
+static int idpf_vector_lifo_push(struct idpf_adapter *adapter, u16 vec_idx)
+{
+	struct idpf_vector_lifo *stack = &adapter->vector_stack;
+
+	lockdep_assert_held(&adapter->vector_lock);
+
+	if (stack->top == stack->base) {
+		dev_err(&adapter->pdev->dev, "Exceeded the vector stack limit: %d\n",
+			stack->top);
+		return -EINVAL;
+	}
+
+	stack->vec_idx[--stack->top] = vec_idx;
+
+	return 0;
+}
+
+/**
+ * idpf_vector_lifo_pop - pop MSIX vector index from stack
+ * @adapter: private data struct
+ */
+static int idpf_vector_lifo_pop(struct idpf_adapter *adapter)
+{
+	struct idpf_vector_lifo *stack = &adapter->vector_stack;
+
+	lockdep_assert_held(&adapter->vector_lock);
+
+	if (stack->top == stack->size) {
+		dev_err(&adapter->pdev->dev, "No interrupt vectors are available to distribute!\n");
+
+		return -EINVAL;
+	}
+
+	return stack->vec_idx[stack->top++];
+}
+
+/**
+ * idpf_vector_stash - Store the vector indexes onto the stack
+ * @adapter: private data struct
+ * @q_vector_idxs: vector index array
+ * @vec_info: info related to the number of vectors
+ *
+ * This function is a no-op if there are no vectors indexes to be stashed
+ */
+static void idpf_vector_stash(struct idpf_adapter *adapter, u16 *q_vector_idxs,
+			      struct idpf_vector_info *vec_info)
+{
+	int i, base = 0;
+	u16 vec_idx;
+
+	lockdep_assert_held(&adapter->vector_lock);
+
+	if (!vec_info->num_curr_vecs)
+		return;
+
+	/* For default vports, no need to stash vector allocated from the
+	 * default pool onto the stack
+	 */
+	if (vec_info->default_vport)
+		base = IDPF_MIN_Q_VEC;
+
+	for (i = vec_info->num_curr_vecs - 1; i >= base ; i--) {
+		vec_idx = q_vector_idxs[i];
+		idpf_vector_lifo_push(adapter, vec_idx);
+		adapter->num_avail_msix++;
+	}
+}
+
+/**
+ * idpf_req_rel_vector_indexes - Request or release MSIX vector indexes
+ * @adapter: driver specific private structure
+ * @q_vector_idxs: vector index array
+ * @vec_info: info related to the number of vectors
+ *
+ * This is the core function to distribute the MSIX vectors acquired from the
+ * OS. It expects the caller to pass the number of vectors required and
+ * also previously allocated. First, it stashes previously allocated vector
+ * indexes on to the stack and then figures out if it can allocate requested
+ * vectors. It can wait on acquiring the mutex lock. If the caller passes 0 as
+ * requested vectors, then this function just stashes the already allocated
+ * vectors and returns 0.
+ *
+ * Returns actual number of vectors allocated on success, error value on failure
+ * If 0 is returned, implies the stack has no vectors to allocate which is also
+ * a failure case for the caller
+ */
+int idpf_req_rel_vector_indexes(struct idpf_adapter *adapter,
+				u16 *q_vector_idxs,
+				struct idpf_vector_info *vec_info)
+{
+	u16 num_req_vecs, num_alloc_vecs = 0, max_vecs;
+	struct idpf_vector_lifo *stack;
+	int i, j, vecid;
+
+	mutex_lock(&adapter->vector_lock);
+	stack = &adapter->vector_stack;
+	num_req_vecs = vec_info->num_req_vecs;
+
+	/* Stash interrupt vector indexes onto the stack if required */
+	idpf_vector_stash(adapter, q_vector_idxs, vec_info);
+
+	if (!num_req_vecs)
+		goto rel_lock;
+
+	if (vec_info->default_vport) {
+		/* As IDPF_MIN_Q_VEC per default vport is put aside in the
+		 * default pool of the stack, use them for default vports
+		 */
+		j = vec_info->index * IDPF_MIN_Q_VEC + IDPF_MBX_Q_VEC;
+		for (i = 0; i < IDPF_MIN_Q_VEC; i++) {
+			q_vector_idxs[num_alloc_vecs++] = stack->vec_idx[j++];
+			num_req_vecs--;
+		}
+	}
+
+	/* Find if stack has enough vector to allocate */
+	max_vecs = min(adapter->num_avail_msix, num_req_vecs);
+
+	for (j = 0; j < max_vecs; j++) {
+		vecid = idpf_vector_lifo_pop(adapter);
+		q_vector_idxs[num_alloc_vecs++] = vecid;
+	}
+	adapter->num_avail_msix -= max_vecs;
+
+rel_lock:
+	mutex_unlock(&adapter->vector_lock);
+
+	return num_alloc_vecs;
+}
+
+/**
+ * idpf_intr_req - Request interrupt capabilities
+ * @adapter: adapter to enable interrupts on
+ *
+ * Returns 0 on success, negative on failure
+ */
+int idpf_intr_req(struct idpf_adapter *adapter)
+{
+	u16 default_vports = idpf_get_default_vports(adapter);
+	int num_q_vecs, total_vecs, num_vec_ids;
+	int min_vectors, v_actual, err;
+	unsigned int vector;
+	u16 *vecids;
+
+	total_vecs = idpf_get_reserved_vecs(adapter);
+	num_q_vecs = total_vecs - IDPF_MBX_Q_VEC;
+
+	err = idpf_send_alloc_vectors_msg(adapter, num_q_vecs);
+	if (err) {
+		dev_err(&adapter->pdev->dev,
+			"Failed to allocate %d vectors: %d\n", num_q_vecs, err);
+
+		return -EAGAIN;
+	}
+
+	min_vectors = IDPF_MBX_Q_VEC + IDPF_MIN_Q_VEC * default_vports;
+	v_actual = pci_alloc_irq_vectors(adapter->pdev, min_vectors,
+					 total_vecs, PCI_IRQ_MSIX);
+	if (v_actual < min_vectors) {
+		dev_err(&adapter->pdev->dev, "Failed to allocate MSIX vectors: %d\n",
+			v_actual);
+		err = -EAGAIN;
+		goto send_dealloc_vecs;
+	}
+
+	adapter->msix_entries = kcalloc(v_actual, sizeof(struct msix_entry),
+					GFP_KERNEL);
+
+	if (!adapter->msix_entries) {
+		err = -ENOMEM;
+		goto free_irq;
+	}
+
+	idpf_set_mb_vec_id(adapter);
+
+	vecids = kcalloc(total_vecs, sizeof(u16), GFP_KERNEL);
+	if (!vecids) {
+		err = -ENOMEM;
+		goto free_msix;
+	}
+
+	if (adapter->req_vec_chunks) {
+		struct virtchnl2_vector_chunks *vchunks;
+		struct virtchnl2_alloc_vectors *ac;
+
+		ac = adapter->req_vec_chunks;
+		vchunks = &ac->vchunks;
+
+		num_vec_ids = idpf_get_vec_ids(adapter, vecids, total_vecs,
+					       vchunks);
+		if (num_vec_ids < v_actual) {
+			err = -EINVAL;
+			goto free_vecids;
+		}
+	} else {
+		int i;
+
+		for (i = 0; i < v_actual; i++)
+			vecids[i] = i;
+	}
+
+	for (vector = 0; vector < v_actual; vector++) {
+		adapter->msix_entries[vector].entry = vecids[vector];
+		adapter->msix_entries[vector].vector =
+			pci_irq_vector(adapter->pdev, vector);
+	}
+
+	adapter->num_req_msix = total_vecs;
+	adapter->num_msix_entries = v_actual;
+	/* 'num_avail_msix' is used to distribute excess vectors to the vports
+	 * after considering the minimum vectors required per each default
+	 * vport
+	 */
+	adapter->num_avail_msix = v_actual - min_vectors;
+
+	/* Fill MSIX vector lifo stack with vector indexes */
+	err = idpf_init_vector_stack(adapter);
+	if (err)
+		goto free_vecids;
+
+	err = idpf_mb_intr_init(adapter);
+	if (err)
+		goto deinit_vec_stack;
+	idpf_mb_irq_enable(adapter);
+	kfree(vecids);
+
+	return 0;
+
+deinit_vec_stack:
+	idpf_deinit_vector_stack(adapter);
+free_vecids:
+	kfree(vecids);
+free_msix:
+	kfree(adapter->msix_entries);
+	adapter->msix_entries = NULL;
+free_irq:
+	pci_free_irq_vectors(adapter->pdev);
+send_dealloc_vecs:
+	idpf_send_dealloc_vectors_msg(adapter);
+
+	return err;
+}
+
+/**
+ * idpf_find_mac_filter - Search filter list for specific mac filter
+ * @vconfig: Vport config structure
+ * @macaddr: The MAC address
+ *
+ * Returns ptr to the filter object or NULL. Must be called while holding the
+ * mac_filter_list_lock.
+ **/
+static struct idpf_mac_filter *idpf_find_mac_filter(struct idpf_vport_config *vconfig,
+						    const u8 *macaddr)
+{
+	struct idpf_mac_filter *f;
+
+	if (!macaddr)
+		return NULL;
+
+	list_for_each_entry(f, &vconfig->user_config.mac_filter_list, list) {
+		if (ether_addr_equal(macaddr, f->macaddr))
+			return f;
+	}
+
+	return NULL;
+}
+
+/**
+ * __idpf_del_mac_filter - Delete a MAC filter from the filter list
+ * @vport_config: Vport config structure
+ * @macaddr: The MAC address
+ *
+ * Returns 0 on success, error value on failure
+ **/
+static int __idpf_del_mac_filter(struct idpf_vport_config *vport_config,
+				 const u8 *macaddr)
+{
+	struct idpf_mac_filter *f;
+
+	spin_lock_bh(&vport_config->mac_filter_list_lock);
+	f = idpf_find_mac_filter(vport_config, macaddr);
+	if (f) {
+		list_del(&f->list);
+		kfree(f);
+	}
+	spin_unlock_bh(&vport_config->mac_filter_list_lock);
+
+	return 0;
+}
+
+/**
+ * idpf_del_mac_filter - Delete a MAC filter from the filter list
+ * @vport: Main vport structure
+ * @np: Netdev private structure
+ * @macaddr: The MAC address
+ * @async: Don't wait for return message
+ *
+ * Removes filter from list and if interface is up, tells hardware about the
+ * removed filter.
+ **/
+static int idpf_del_mac_filter(struct idpf_vport *vport,
+			       struct idpf_netdev_priv *np,
+			       const u8 *macaddr, bool async)
+{
+	struct idpf_vport_config *vport_config;
+	struct idpf_mac_filter *f;
+
+	vport_config = np->adapter->vport_config[np->vport_idx];
+
+	spin_lock_bh(&vport_config->mac_filter_list_lock);
+	f = idpf_find_mac_filter(vport_config, macaddr);
+	if (f) {
+		f->remove = true;
+	} else {
+		spin_unlock_bh(&vport_config->mac_filter_list_lock);
+
+		return -EINVAL;
+	}
+	spin_unlock_bh(&vport_config->mac_filter_list_lock);
+
+	if (np->state == __IDPF_VPORT_UP) {
+		int err;
+
+		err = idpf_add_del_mac_filters(vport, np, false, async);
+		if (err)
+			return err;
+	}
+
+	return  __idpf_del_mac_filter(vport_config, macaddr);
+}
+
+/**
+ * __idpf_add_mac_filter - Add mac filter helper function
+ * @vport_config: Vport config structure
+ * @macaddr: Address to add
+ *
+ * Takes mac_filter_list_lock spinlock to add new filter to list.
+ */
+static int __idpf_add_mac_filter(struct idpf_vport_config *vport_config,
+				 const u8 *macaddr)
+{
+	struct idpf_mac_filter *f;
+
+	spin_lock_bh(&vport_config->mac_filter_list_lock);
+
+	f = idpf_find_mac_filter(vport_config, macaddr);
+	if (f) {
+		f->remove = false;
+		spin_unlock_bh(&vport_config->mac_filter_list_lock);
+
+		return 0;
+	}
+
+	f = kzalloc(sizeof(*f), GFP_ATOMIC);
+	if (!f) {
+		spin_unlock_bh(&vport_config->mac_filter_list_lock);
+
+		return -ENOMEM;
+	}
+
+	ether_addr_copy(f->macaddr, macaddr);
+	list_add_tail(&f->list, &vport_config->user_config.mac_filter_list);
+	f->add = true;
+
+	spin_unlock_bh(&vport_config->mac_filter_list_lock);
+
+	return 0;
+}
+
+/**
+ * idpf_add_mac_filter - Add a mac filter to the filter list
+ * @vport: Main vport structure
+ * @np: Netdev private structure
+ * @macaddr: The MAC address
+ * @async: Don't wait for return message
+ *
+ * Returns 0 on success or error on failure. If interface is up, we'll also
+ * send the virtchnl message to tell hardware about the filter.
+ **/
+static int idpf_add_mac_filter(struct idpf_vport *vport,
+			       struct idpf_netdev_priv *np,
+			       const u8 *macaddr, bool async)
+{
+	struct idpf_vport_config *vport_config;
+	int err;
+
+	vport_config = np->adapter->vport_config[np->vport_idx];
+	err = __idpf_add_mac_filter(vport_config, macaddr);
+	if (err)
+		return err;
+
+	if (np->state == __IDPF_VPORT_UP)
+		err = idpf_add_del_mac_filters(vport, np, true, async);
+
+	return err;
+}
+
+/**
+ * idpf_del_all_mac_filters - Delete all MAC filters in list
+ * @vport: main vport struct
+ *
+ * Takes mac_filter_list_lock spinlock.  Deletes all filters
+ */
+static void idpf_del_all_mac_filters(struct idpf_vport *vport)
+{
+	struct idpf_vport_config *vport_config;
+	struct idpf_mac_filter *f, *ftmp;
+
+	vport_config = vport->adapter->vport_config[vport->idx];
+	spin_lock_bh(&vport_config->mac_filter_list_lock);
+
+	list_for_each_entry_safe(f, ftmp, &vport_config->user_config.mac_filter_list,
+				 list) {
+		list_del(&f->list);
+		kfree(f);
+	}
+
+	spin_unlock_bh(&vport_config->mac_filter_list_lock);
+}
+
+/**
+ * idpf_restore_mac_filters - Re-add all MAC filters in list
+ * @vport: main vport struct
+ *
+ * Takes mac_filter_list_lock spinlock.  Sets add field to true for filters to
+ * resync filters back to HW.
+ */
+static void idpf_restore_mac_filters(struct idpf_vport *vport)
+{
+	struct idpf_vport_config *vport_config;
+	struct idpf_mac_filter *f;
+
+	vport_config = vport->adapter->vport_config[vport->idx];
+	spin_lock_bh(&vport_config->mac_filter_list_lock);
+
+	list_for_each_entry(f, &vport_config->user_config.mac_filter_list, list)
+		f->add = true;
+
+	spin_unlock_bh(&vport_config->mac_filter_list_lock);
+
+	idpf_add_del_mac_filters(vport, netdev_priv(vport->netdev),
+				 true, false);
+}
+
+/**
+ * idpf_remove_mac_filters - Remove all MAC filters in list
+ * @vport: main vport struct
+ *
+ * Takes mac_filter_list_lock spinlock. Sets remove field to true for filters
+ * to remove filters in HW.
+ */
+static void idpf_remove_mac_filters(struct idpf_vport *vport)
+{
+	struct idpf_vport_config *vport_config;
+	struct idpf_mac_filter *f;
+
+	vport_config = vport->adapter->vport_config[vport->idx];
+	spin_lock_bh(&vport_config->mac_filter_list_lock);
+
+	list_for_each_entry(f, &vport_config->user_config.mac_filter_list, list)
+		f->remove = true;
+
+	spin_unlock_bh(&vport_config->mac_filter_list_lock);
+
+	idpf_add_del_mac_filters(vport, netdev_priv(vport->netdev),
+				 false, false);
+}
+
+/**
+ * idpf_deinit_mac_addr - deinitialize mac address for vport
+ * @vport: main vport structure
+ */
+static void idpf_deinit_mac_addr(struct idpf_vport *vport)
+{
+	struct idpf_vport_config *vport_config;
+	struct idpf_mac_filter *f;
+
+	vport_config = vport->adapter->vport_config[vport->idx];
+
+	spin_lock_bh(&vport_config->mac_filter_list_lock);
+
+	f = idpf_find_mac_filter(vport_config, vport->default_mac_addr);
+	if (f) {
+		list_del(&f->list);
+		kfree(f);
+	}
+
+	spin_unlock_bh(&vport_config->mac_filter_list_lock);
+}
+
+/**
+ * idpf_init_mac_addr - initialize mac address for vport
+ * @vport: main vport structure
+ * @netdev: pointer to netdev struct associated with this vport
+ */
+static int idpf_init_mac_addr(struct idpf_vport *vport,
+			      struct net_device *netdev)
+{
+	struct idpf_netdev_priv *np = netdev_priv(netdev);
+	struct idpf_adapter *adapter = vport->adapter;
+	int err;
+
+	if (is_valid_ether_addr(vport->default_mac_addr)) {
+		eth_hw_addr_set(netdev, vport->default_mac_addr);
+		ether_addr_copy(netdev->perm_addr, vport->default_mac_addr);
+
+		return idpf_add_mac_filter(vport, np, vport->default_mac_addr,
+					   false);
+	}
+
+	if (!idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS,
+			     VIRTCHNL2_CAP_MACFILTER)) {
+		dev_err(&adapter->pdev->dev,
+			"MAC address is not provided and capability is not set\n");
+
+		return -EINVAL;
+	}
+
+	eth_hw_addr_random(netdev);
+	err = idpf_add_mac_filter(vport, np, netdev->dev_addr, false);
+	if (err)
+		return err;
+
+	dev_info(&adapter->pdev->dev, "Invalid MAC address %pM, using random %pM\n",
+		 vport->default_mac_addr, netdev->dev_addr);
+	ether_addr_copy(vport->default_mac_addr, netdev->dev_addr);
+
+	return 0;
+}
+
+/**
+ * idpf_cfg_netdev - Allocate, configure and register a netdev
+ * @vport: main vport structure
+ *
+ * Returns 0 on success, negative value on failure.
+ */
+static int idpf_cfg_netdev(struct idpf_vport *vport)
+{
+	struct idpf_adapter *adapter = vport->adapter;
+	struct idpf_vport_config *vport_config;
+	netdev_features_t dflt_features;
+	netdev_features_t offloads = 0;
+	struct idpf_netdev_priv *np;
+	struct net_device *netdev;
+	u16 idx = vport->idx;
+	int err;
+
+	vport_config = adapter->vport_config[idx];
+
+	/* It's possible we already have a netdev allocated and registered for
+	 * this vport
+	 */
+	if (test_bit(IDPF_VPORT_REG_NETDEV, vport_config->flags)) {
+		netdev = adapter->netdevs[idx];
+		np = netdev_priv(netdev);
+		np->vport = vport;
+		np->vport_idx = vport->idx;
+		np->vport_id = vport->vport_id;
+		vport->netdev = netdev;
+
+		return idpf_init_mac_addr(vport, netdev);
+	}
+
+	netdev = alloc_etherdev_mqs(sizeof(struct idpf_netdev_priv),
+				    vport_config->max_q.max_txq,
+				    vport_config->max_q.max_rxq);
+	if (!netdev)
+		return -ENOMEM;
+
+	vport->netdev = netdev;
+	np = netdev_priv(netdev);
+	np->vport = vport;
+	np->adapter = adapter;
+	np->vport_idx = vport->idx;
+	np->vport_id = vport->vport_id;
+
+	spin_lock_init(&np->stats_lock);
+
+	err = idpf_init_mac_addr(vport, netdev);
+	if (err) {
+		free_netdev(vport->netdev);
+		vport->netdev = NULL;
+
+		return err;
+	}
+
+	/* assign netdev_ops */
+	if (idpf_is_queue_model_split(vport->txq_model))
+		netdev->netdev_ops = &idpf_netdev_ops_splitq;
+	else
+		netdev->netdev_ops = &idpf_netdev_ops_singleq;
+
+	/* setup watchdog timeout value to be 5 second */
+	netdev->watchdog_timeo = 5 * HZ;
+
+	netdev->dev_port = idx;
+
+	/* configure default MTU size */
+	netdev->min_mtu = ETH_MIN_MTU;
+	netdev->max_mtu = vport->max_mtu;
+
+	dflt_features = NETIF_F_SG	|
+			NETIF_F_HIGHDMA;
+
+	if (idpf_is_cap_ena_all(adapter, IDPF_RSS_CAPS, IDPF_CAP_RSS))
+		dflt_features |= NETIF_F_RXHASH;
+	if (idpf_is_cap_ena_all(adapter, IDPF_CSUM_CAPS, IDPF_CAP_RX_CSUM_L4V4))
+		dflt_features |= NETIF_F_IP_CSUM;
+	if (idpf_is_cap_ena_all(adapter, IDPF_CSUM_CAPS, IDPF_CAP_RX_CSUM_L4V6))
+		dflt_features |= NETIF_F_IPV6_CSUM;
+	if (idpf_is_cap_ena(adapter, IDPF_CSUM_CAPS, IDPF_CAP_RX_CSUM))
+		dflt_features |= NETIF_F_RXCSUM;
+	if (idpf_is_cap_ena_all(adapter, IDPF_CSUM_CAPS, IDPF_CAP_SCTP_CSUM))
+		dflt_features |= NETIF_F_SCTP_CRC;
+
+	if (idpf_is_cap_ena(adapter, IDPF_SEG_CAPS, VIRTCHNL2_CAP_SEG_IPV4_TCP))
+		dflt_features |= NETIF_F_TSO;
+	if (idpf_is_cap_ena(adapter, IDPF_SEG_CAPS, VIRTCHNL2_CAP_SEG_IPV6_TCP))
+		dflt_features |= NETIF_F_TSO6;
+	if (idpf_is_cap_ena_all(adapter, IDPF_SEG_CAPS,
+				VIRTCHNL2_CAP_SEG_IPV4_UDP |
+				VIRTCHNL2_CAP_SEG_IPV6_UDP))
+		dflt_features |= NETIF_F_GSO_UDP_L4;
+	if (idpf_is_cap_ena_all(adapter, IDPF_RSC_CAPS, IDPF_CAP_RSC))
+		offloads |= NETIF_F_GRO_HW;
+	/* advertise to stack only if offloads for encapsulated packets is
+	 * supported
+	 */
+	if (idpf_is_cap_ena(vport->adapter, IDPF_SEG_CAPS,
+			    VIRTCHNL2_CAP_SEG_TX_SINGLE_TUNNEL)) {
+		offloads |= NETIF_F_GSO_UDP_TUNNEL	|
+			    NETIF_F_GSO_GRE		|
+			    NETIF_F_GSO_GRE_CSUM	|
+			    NETIF_F_GSO_PARTIAL		|
+			    NETIF_F_GSO_UDP_TUNNEL_CSUM	|
+			    NETIF_F_GSO_IPXIP4		|
+			    NETIF_F_GSO_IPXIP6		|
+			    0;
+
+		if (!idpf_is_cap_ena_all(vport->adapter, IDPF_CSUM_CAPS,
+					 IDPF_CAP_TUNNEL_TX_CSUM))
+			netdev->gso_partial_features |=
+				NETIF_F_GSO_UDP_TUNNEL_CSUM;
+
+		netdev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM;
+		offloads |= NETIF_F_TSO_MANGLEID;
+	}
+	if (idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_LOOPBACK))
+		offloads |= NETIF_F_LOOPBACK;
+
+	netdev->features |= dflt_features;
+	netdev->hw_features |= dflt_features | offloads;
+	netdev->hw_enc_features |= dflt_features | offloads;
+	idpf_set_ethtool_ops(netdev);
+	SET_NETDEV_DEV(netdev, &adapter->pdev->dev);
+
+	/* carrier off on init to avoid Tx hangs */
+	netif_carrier_off(netdev);
+
+	/* make sure transmit queues start off as stopped */
+	netif_tx_stop_all_queues(netdev);
+
+	/* The vport can be arbitrarily released so we need to also track
+	 * netdevs in the adapter struct
+	 */
+	adapter->netdevs[idx] = netdev;
+
+	return 0;
+}
+
+/**
+ * idpf_get_free_slot - get the next non-NULL location index in array
+ * @adapter: adapter in which to look for a free vport slot
+ */
+static int idpf_get_free_slot(struct idpf_adapter *adapter)
+{
+	unsigned int i;
+
+	for (i = 0; i < adapter->max_vports; i++) {
+		if (!adapter->vports[i])
+			return i;
+	}
+
+	return IDPF_NO_FREE_SLOT;
+}
+
+/**
+ * idpf_remove_features - Turn off feature configs
+ * @vport: virtual port structure
+ */
+static void idpf_remove_features(struct idpf_vport *vport)
+{
+	struct idpf_adapter *adapter = vport->adapter;
+
+	if (idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_MACFILTER))
+		idpf_remove_mac_filters(vport);
+}
+
+/**
+ * idpf_vport_stop - Disable a vport
+ * @vport: vport to disable
+ */
+static void idpf_vport_stop(struct idpf_vport *vport)
+{
+	struct idpf_netdev_priv *np = netdev_priv(vport->netdev);
+
+	if (np->state <= __IDPF_VPORT_DOWN)
+		return;
+
+	netif_carrier_off(vport->netdev);
+	netif_tx_disable(vport->netdev);
+
+	idpf_send_disable_vport_msg(vport);
+	idpf_send_disable_queues_msg(vport);
+	idpf_send_map_unmap_queue_vector_msg(vport, false);
+	/* Normally we ask for queues in create_vport, but if the number of
+	 * initially requested queues have changed, for example via ethtool
+	 * set channels, we do delete queues and then add the queues back
+	 * instead of deleting and reallocating the vport.
+	 */
+	if (test_and_clear_bit(IDPF_VPORT_DEL_QUEUES, vport->flags))
+		idpf_send_delete_queues_msg(vport);
+
+	idpf_remove_features(vport);
+
+	vport->link_up = false;
+	idpf_vport_intr_deinit(vport);
+	idpf_vport_intr_rel(vport);
+	idpf_vport_queues_rel(vport);
+	np->state = __IDPF_VPORT_DOWN;
+}
+
+/**
+ * idpf_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
+ */
+static int idpf_stop(struct net_device *netdev)
+{
+	struct idpf_netdev_priv *np = netdev_priv(netdev);
+	struct idpf_vport *vport;
+
+	if (test_bit(IDPF_REMOVE_IN_PROG, np->adapter->flags))
+		return 0;
+
+	idpf_vport_ctrl_lock(netdev);
+	vport = idpf_netdev_to_vport(netdev);
+
+	idpf_vport_stop(vport);
+
+	idpf_vport_ctrl_unlock(netdev);
+
+	return 0;
+}
+
+/**
+ * idpf_decfg_netdev - Unregister the netdev
+ * @vport: vport for which netdev to be unregistered
+ */
+static void idpf_decfg_netdev(struct idpf_vport *vport)
+{
+	struct idpf_adapter *adapter = vport->adapter;
+
+	unregister_netdev(vport->netdev);
+	free_netdev(vport->netdev);
+	vport->netdev = NULL;
+
+	adapter->netdevs[vport->idx] = NULL;
+}
+
+/**
+ * idpf_vport_rel - Delete a vport and free its resources
+ * @vport: the vport being removed
+ */
+static void idpf_vport_rel(struct idpf_vport *vport)
+{
+	struct idpf_adapter *adapter = vport->adapter;
+	struct idpf_vport_config *vport_config;
+	struct idpf_vector_info vec_info;
+	struct idpf_rss_data *rss_data;
+	struct idpf_vport_max_q max_q;
+	u16 idx = vport->idx;
+	int i;
+
+	vport_config = adapter->vport_config[vport->idx];
+	idpf_deinit_rss(vport);
+	rss_data = &vport_config->user_config.rss_data;
+	kfree(rss_data->rss_key);
+	rss_data->rss_key = NULL;
+
+	idpf_send_destroy_vport_msg(vport);
+
+	/* Set all bits as we dont know on which vc_state the vport vhnl_wq
+	 * is waiting on and wakeup the virtchnl workqueue even if it is
+	 * waiting for the response as we are going down
+	 */
+	for (i = 0; i < IDPF_VC_NBITS; i++)
+		set_bit(i, vport->vc_state);
+	wake_up(&vport->vchnl_wq);
+
+	mutex_destroy(&vport->vc_buf_lock);
+
+	/* Clear all the bits */
+	for (i = 0; i < IDPF_VC_NBITS; i++)
+		clear_bit(i, vport->vc_state);
+
+	/* Release all max queues allocated to the adapter's pool */
+	max_q.max_rxq = vport_config->max_q.max_rxq;
+	max_q.max_txq = vport_config->max_q.max_txq;
+	max_q.max_bufq = vport_config->max_q.max_bufq;
+	max_q.max_complq = vport_config->max_q.max_complq;
+	idpf_vport_dealloc_max_qs(adapter, &max_q);
+
+	/* Release all the allocated vectors on the stack */
+	vec_info.num_req_vecs = 0;
+	vec_info.num_curr_vecs = vport->num_q_vectors;
+	vec_info.default_vport = vport->default_vport;
+
+	idpf_req_rel_vector_indexes(adapter, vport->q_vector_idxs, &vec_info);
+
+	kfree(vport->q_vector_idxs);
+	vport->q_vector_idxs = NULL;
+
+	kfree(adapter->vport_params_recvd[idx]);
+	adapter->vport_params_recvd[idx] = NULL;
+	kfree(adapter->vport_params_reqd[idx]);
+	adapter->vport_params_reqd[idx] = NULL;
+	if (adapter->vport_config[idx]) {
+		kfree(adapter->vport_config[idx]->req_qs_chunks);
+		adapter->vport_config[idx]->req_qs_chunks = NULL;
+	}
+	kfree(vport);
+	adapter->num_alloc_vports--;
+}
+
+/**
+ * idpf_vport_dealloc - cleanup and release a given vport
+ * @vport: pointer to idpf vport structure
+ *
+ * returns nothing
+ */
+static void idpf_vport_dealloc(struct idpf_vport *vport)
+{
+	struct idpf_adapter *adapter = vport->adapter;
+	unsigned int i = vport->idx;
+
+	idpf_deinit_mac_addr(vport);
+	idpf_vport_stop(vport);
+
+	if (!test_bit(IDPF_HR_RESET_IN_PROG, adapter->flags))
+		idpf_decfg_netdev(vport);
+	if (test_bit(IDPF_REMOVE_IN_PROG, adapter->flags))
+		idpf_del_all_mac_filters(vport);
+
+	if (adapter->netdevs[i]) {
+		struct idpf_netdev_priv *np = netdev_priv(adapter->netdevs[i]);
+
+		np->vport = NULL;
+	}
+
+	idpf_vport_rel(vport);
+
+	adapter->vports[i] = NULL;
+	adapter->next_vport = idpf_get_free_slot(adapter);
+}
+
+/**
+ * idpf_vport_alloc - Allocates the next available struct vport in the adapter
+ * @adapter: board private structure
+ * @max_q: vport max queue info
+ *
+ * returns a pointer to a vport on success, NULL on failure.
+ */
+static struct idpf_vport *idpf_vport_alloc(struct idpf_adapter *adapter,
+					   struct idpf_vport_max_q *max_q)
+{
+	struct idpf_rss_data *rss_data;
+	u16 idx = adapter->next_vport;
+	struct idpf_vport *vport;
+	u16 num_max_q;
+
+	if (idx == IDPF_NO_FREE_SLOT)
+		return NULL;
+
+	vport = kzalloc(sizeof(*vport), GFP_KERNEL);
+	if (!vport)
+		return vport;
+
+	if (!adapter->vport_config[idx]) {
+		struct idpf_vport_config *vport_config;
+
+		vport_config = kzalloc(sizeof(*vport_config), GFP_KERNEL);
+		if (!vport_config) {
+			kfree(vport);
+
+			return NULL;
+		}
+
+		adapter->vport_config[idx] = vport_config;
+	}
+
+	vport->idx = idx;
+	vport->adapter = adapter;
+	vport->compln_clean_budget = IDPF_TX_COMPLQ_CLEAN_BUDGET;
+	vport->default_vport = adapter->num_alloc_vports <
+			       idpf_get_default_vports(adapter);
+
+	num_max_q = max(max_q->max_txq, max_q->max_rxq);
+	vport->q_vector_idxs = kcalloc(num_max_q, sizeof(u16), GFP_KERNEL);
+	if (!vport->q_vector_idxs) {
+		kfree(vport);
+
+		return NULL;
+	}
+	idpf_vport_init(vport, max_q);
+
+	/* This alloc is done separate from the LUT because it's not strictly
+	 * dependent on how many queues we have. If we change number of queues
+	 * and soft reset we'll need a new LUT but the key can remain the same
+	 * for as long as the vport exists.
+	 */
+	rss_data = &adapter->vport_config[idx]->user_config.rss_data;
+	rss_data->rss_key = kzalloc(rss_data->rss_key_size, GFP_KERNEL);
+	if (!rss_data->rss_key) {
+		kfree(vport);
+
+		return NULL;
+	}
+	/* Initialize default rss key */
+	netdev_rss_key_fill((void *)rss_data->rss_key, rss_data->rss_key_size);
+
+	/* fill vport slot in the adapter struct */
+	adapter->vports[idx] = vport;
+	adapter->vport_ids[idx] = idpf_get_vport_id(vport);
+
+	adapter->num_alloc_vports++;
+	/* prepare adapter->next_vport for next use */
+	adapter->next_vport = idpf_get_free_slot(adapter);
+
+	return vport;
+}
+
+/**
+ * idpf_get_stats64 - get statistics for network device structure
+ * @netdev: network interface device structure
+ * @stats: main device statistics structure
+ */
+static void idpf_get_stats64(struct net_device *netdev,
+			     struct rtnl_link_stats64 *stats)
+{
+	struct idpf_netdev_priv *np = netdev_priv(netdev);
+
+	spin_lock_bh(&np->stats_lock);
+	*stats = np->netstats;
+	spin_unlock_bh(&np->stats_lock);
+}
+
+/**
+ * idpf_statistics_task - Delayed task to get statistics over mailbox
+ * @work: work_struct handle to our data
+ */
+void idpf_statistics_task(struct work_struct *work)
+{
+	struct idpf_adapter *adapter;
+	int i;
+
+	adapter = container_of(work, struct idpf_adapter, stats_task.work);
+
+	for (i = 0; i < adapter->max_vports; i++) {
+		struct idpf_vport *vport = adapter->vports[i];
+
+		if (vport && !test_bit(IDPF_HR_RESET_IN_PROG, adapter->flags))
+			idpf_send_get_stats_msg(vport);
+	}
+
+	queue_delayed_work(adapter->stats_wq, &adapter->stats_task,
+			   msecs_to_jiffies(10000));
+}
+
+/**
+ * idpf_mbx_task - Delayed task to handle mailbox responses
+ * @work: work_struct handle
+ */
+void idpf_mbx_task(struct work_struct *work)
+{
+	struct idpf_adapter *adapter;
+
+	adapter = container_of(work, struct idpf_adapter, mbx_task.work);
+
+	if (test_bit(IDPF_MB_INTR_MODE, adapter->flags))
+		idpf_mb_irq_enable(adapter);
+	else
+		queue_delayed_work(adapter->mbx_wq, &adapter->mbx_task,
+				   msecs_to_jiffies(300));
+
+	idpf_recv_mb_msg(adapter, VIRTCHNL2_OP_UNKNOWN, NULL, 0);
+}
+
+/**
+ * idpf_service_task - Delayed task for handling mailbox responses
+ * @work: work_struct handle to our data
+ *
+ */
+void idpf_service_task(struct work_struct *work)
+{
+	struct idpf_adapter *adapter;
+
+	adapter = container_of(work, struct idpf_adapter, serv_task.work);
+
+	if (idpf_is_reset_detected(adapter) &&
+	    !idpf_is_reset_in_prog(adapter) &&
+	    !test_bit(IDPF_REMOVE_IN_PROG, adapter->flags)) {
+		dev_info(&adapter->pdev->dev, "HW reset detected\n");
+		set_bit(IDPF_HR_FUNC_RESET, adapter->flags);
+		queue_delayed_work(adapter->vc_event_wq,
+				   &adapter->vc_event_task,
+				   msecs_to_jiffies(10));
+	}
+
+	queue_delayed_work(adapter->serv_wq, &adapter->serv_task,
+			   msecs_to_jiffies(300));
+}
+
+/**
+ * idpf_restore_features - Restore feature configs
+ * @vport: virtual port structure
+ */
+static void idpf_restore_features(struct idpf_vport *vport)
+{
+	struct idpf_adapter *adapter = vport->adapter;
+
+	if (idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_MACFILTER))
+		idpf_restore_mac_filters(vport);
+}
+
+/**
+ * idpf_set_real_num_queues - set number of queues for netdev
+ * @vport: virtual port structure
+ *
+ * Returns 0 on success, negative on failure.
+ */
+static int idpf_set_real_num_queues(struct idpf_vport *vport)
+{
+	int err;
+
+	err = netif_set_real_num_rx_queues(vport->netdev, vport->num_rxq);
+	if (err)
+		return err;
+
+	return netif_set_real_num_tx_queues(vport->netdev, vport->num_txq);
+}
+
+/**
+ * idpf_up_complete - Complete interface up sequence
+ * @vport: virtual port structure
+ *
+ * Returns 0 on success, negative on failure.
+ */
+static int idpf_up_complete(struct idpf_vport *vport)
+{
+	struct idpf_netdev_priv *np = netdev_priv(vport->netdev);
+
+	if (vport->link_up && !netif_carrier_ok(vport->netdev)) {
+		netif_carrier_on(vport->netdev);
+		netif_tx_start_all_queues(vport->netdev);
+	}
+
+	np->state = __IDPF_VPORT_UP;
+
+	return 0;
+}
+
+/**
+ * idpf_rx_init_buf_tail - Write initial buffer ring tail value
+ * @vport: virtual port struct
+ */
+static void idpf_rx_init_buf_tail(struct idpf_vport *vport)
+{
+	int i, j;
+
+	for (i = 0; i < vport->num_rxq_grp; i++) {
+		struct idpf_rxq_group *grp = &vport->rxq_grps[i];
+
+		if (idpf_is_queue_model_split(vport->rxq_model)) {
+			for (j = 0; j < vport->num_bufqs_per_qgrp; j++) {
+				struct idpf_queue *q =
+					&grp->splitq.bufq_sets[j].bufq;
+
+				writel(q->next_to_alloc, q->tail);
+			}
+		} else {
+			for (j = 0; j < grp->singleq.num_rxq; j++) {
+				struct idpf_queue *q =
+					grp->singleq.rxqs[j];
+
+				writel(q->next_to_alloc, q->tail);
+			}
+		}
+	}
+}
+
+/**
+ * idpf_vport_open - Bring up a vport
+ * @vport: vport to bring up
+ * @alloc_res: allocate queue resources
+ */
+static int idpf_vport_open(struct idpf_vport *vport, bool alloc_res)
+{
+	struct idpf_netdev_priv *np = netdev_priv(vport->netdev);
+	struct idpf_adapter *adapter = vport->adapter;
+	struct idpf_vport_config *vport_config;
+	int err;
+
+	if (np->state != __IDPF_VPORT_DOWN)
+		return -EBUSY;
+
+	/* we do not allow interface up just yet */
+	netif_carrier_off(vport->netdev);
+
+	if (alloc_res) {
+		err = idpf_vport_queues_alloc(vport);
+		if (err)
+			return err;
+	}
+
+	err = idpf_vport_intr_alloc(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to allocate interrupts for vport %u: %d\n",
+			vport->vport_id, err);
+		goto queues_rel;
+	}
+
+	err = idpf_vport_queue_ids_init(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to initialize queue ids for vport %u: %d\n",
+			vport->vport_id, err);
+		goto intr_rel;
+	}
+
+	err = idpf_vport_intr_init(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to initialize interrupts for vport %u: %d\n",
+			vport->vport_id, err);
+		goto intr_rel;
+	}
+
+	err = idpf_rx_bufs_init_all(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to initialize RX buffers for vport %u: %d\n",
+			vport->vport_id, err);
+		goto intr_rel;
+	}
+
+	err = idpf_queue_reg_init(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to initialize queue registers for vport %u: %d\n",
+			vport->vport_id, err);
+		goto intr_rel;
+	}
+
+	idpf_rx_init_buf_tail(vport);
+
+	err = idpf_send_config_queues_msg(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to configure queues for vport %u, %d\n",
+			vport->vport_id, err);
+		goto intr_deinit;
+	}
+
+	err = idpf_send_map_unmap_queue_vector_msg(vport, true);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to map queue vectors for vport %u: %d\n",
+			vport->vport_id, err);
+		goto intr_deinit;
+	}
+
+	err = idpf_send_enable_queues_msg(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to enable queues for vport %u: %d\n",
+			vport->vport_id, err);
+		goto unmap_queue_vectors;
+	}
+
+	err = idpf_send_enable_vport_msg(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to enable vport %u: %d\n",
+			vport->vport_id, err);
+		err = -EAGAIN;
+		goto disable_queues;
+	}
+
+	idpf_restore_features(vport);
+
+	vport_config = adapter->vport_config[vport->idx];
+	if (vport_config->user_config.rss_data.rss_lut)
+		err = idpf_config_rss(vport);
+	else
+		err = idpf_init_rss(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to initialize RSS for vport %u: %d\n",
+			vport->vport_id, err);
+		goto disable_vport;
+	}
+
+	err = idpf_up_complete(vport);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "Failed to complete interface up for vport %u: %d\n",
+			vport->vport_id, err);
+		goto deinit_rss;
+	}
+
+	return 0;
+
+deinit_rss:
+	idpf_deinit_rss(vport);
+disable_vport:
+	idpf_send_disable_vport_msg(vport);
+disable_queues:
+	idpf_send_disable_queues_msg(vport);
+unmap_queue_vectors:
+	idpf_send_map_unmap_queue_vector_msg(vport, false);
+intr_deinit:
+	idpf_vport_intr_deinit(vport);
+intr_rel:
+	idpf_vport_intr_rel(vport);
+queues_rel:
+	idpf_vport_queues_rel(vport);
+
+	return err;
+}
+
+/**
+ * idpf_init_task - Delayed initialization task
+ * @work: work_struct handle to our data
+ *
+ * Init task finishes up pending work started in probe. Due to the asynchronous
+ * nature in which the device communicates with hardware, we may have to wait
+ * several milliseconds to get a response.  Instead of busy polling in probe,
+ * pulling it out into a delayed work task prevents us from bogging down the
+ * whole system waiting for a response from hardware.
+ */
+void idpf_init_task(struct work_struct *work)
+{
+	struct idpf_vport_config *vport_config;
+	struct idpf_vport_max_q max_q;
+	struct idpf_adapter *adapter;
+	struct idpf_netdev_priv *np;
+	struct idpf_vport *vport;
+	u16 num_default_vports;
+	struct pci_dev *pdev;
+	bool default_vport;
+	int index, err;
+
+	adapter = container_of(work, struct idpf_adapter, init_task.work);
+
+	num_default_vports = idpf_get_default_vports(adapter);
+	if (adapter->num_alloc_vports < num_default_vports)
+		default_vport = true;
+	else
+		default_vport = false;
+
+	err = idpf_vport_alloc_max_qs(adapter, &max_q);
+	if (err)
+		goto unwind_vports;
+
+	err = idpf_send_create_vport_msg(adapter, &max_q);
+	if (err) {
+		idpf_vport_dealloc_max_qs(adapter, &max_q);
+		goto unwind_vports;
+	}
+
+	pdev = adapter->pdev;
+	vport = idpf_vport_alloc(adapter, &max_q);
+	if (!vport) {
+		err = -EFAULT;
+		dev_err(&pdev->dev, "failed to allocate vport: %d\n",
+			err);
+		idpf_vport_dealloc_max_qs(adapter, &max_q);
+		goto unwind_vports;
+	}
+
+	index = vport->idx;
+	vport_config = adapter->vport_config[index];
+
+	init_waitqueue_head(&vport->sw_marker_wq);
+	init_waitqueue_head(&vport->vchnl_wq);
+
+	mutex_init(&vport->vc_buf_lock);
+	spin_lock_init(&vport_config->mac_filter_list_lock);
+
+	INIT_LIST_HEAD(&vport_config->user_config.mac_filter_list);
+
+	err = idpf_check_supported_desc_ids(vport);
+	if (err) {
+		dev_err(&pdev->dev, "failed to get required descriptor ids\n");
+		goto cfg_netdev_err;
+	}
+
+	if (idpf_cfg_netdev(vport))
+		goto cfg_netdev_err;
+
+	err = idpf_send_get_rx_ptype_msg(vport);
+	if (err)
+		goto handle_err;
+
+	/* Once state is put into DOWN, driver is ready for dev_open */
+	np = netdev_priv(vport->netdev);
+	np->state = __IDPF_VPORT_DOWN;
+	if (test_and_clear_bit(IDPF_VPORT_UP_REQUESTED, vport_config->flags))
+		idpf_vport_open(vport, true);
+
+	/* Spawn and return 'idpf_init_task' work queue until all the
+	 * default vports are created
+	 */
+	if (adapter->num_alloc_vports < num_default_vports) {
+		queue_delayed_work(adapter->init_wq, &adapter->init_task,
+				   msecs_to_jiffies(5 * (adapter->pdev->devfn & 0x07)));
+
+		return;
+	}
+
+	for (index = 0; index < adapter->max_vports; index++) {
+		if (adapter->netdevs[index] &&
+		    !test_bit(IDPF_VPORT_REG_NETDEV,
+			      adapter->vport_config[index]->flags)) {
+			register_netdev(adapter->netdevs[index]);
+			set_bit(IDPF_VPORT_REG_NETDEV,
+				adapter->vport_config[index]->flags);
+		}
+	}
+
+	/* As all the required vports are created, clear the reset flag
+	 * unconditionally here in case we were in reset and the link was down.
+	 */
+	clear_bit(IDPF_HR_RESET_IN_PROG, adapter->flags);
+	/* Start the statistics task now */
+	queue_delayed_work(adapter->stats_wq, &adapter->stats_task,
+			   msecs_to_jiffies(10 * (pdev->devfn & 0x07)));
+
+	return;
+
+handle_err:
+	idpf_decfg_netdev(vport);
+cfg_netdev_err:
+	idpf_vport_rel(vport);
+	adapter->vports[index] = NULL;
+unwind_vports:
+	if (default_vport) {
+		for (index = 0; index < adapter->max_vports; index++) {
+			if (adapter->vports[index])
+				idpf_vport_dealloc(adapter->vports[index]);
+		}
+	}
+	clear_bit(IDPF_HR_RESET_IN_PROG, adapter->flags);
+}
+
+/**
+ * idpf_sriov_ena - Enable or change number of VFs
+ * @adapter: private data struct
+ * @num_vfs: number of VFs to allocate
+ */
+static int idpf_sriov_ena(struct idpf_adapter *adapter, int num_vfs)
+{
+	struct device *dev = &adapter->pdev->dev;
+	int err;
+
+	err = idpf_send_set_sriov_vfs_msg(adapter, num_vfs);
+	if (err) {
+		dev_err(dev, "Failed to allocate VFs: %d\n", err);
+
+		return err;
+	}
+
+	err = pci_enable_sriov(adapter->pdev, num_vfs);
+	if (err) {
+		idpf_send_set_sriov_vfs_msg(adapter, 0);
+		dev_err(dev, "Failed to enable SR-IOV: %d\n", err);
+
+		return err;
+	}
+
+	adapter->num_vfs = num_vfs;
+
+	return num_vfs;
+}
+
+/**
+ * idpf_sriov_configure - Configure the requested VFs
+ * @pdev: pointer to a pci_dev structure
+ * @num_vfs: number of vfs to allocate
+ *
+ * Enable or change the number of VFs. Called when the user updates the number
+ * of VFs in sysfs.
+ **/
+int idpf_sriov_configure(struct pci_dev *pdev, int num_vfs)
+{
+	struct idpf_adapter *adapter = pci_get_drvdata(pdev);
+
+	if (!idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_SRIOV)) {
+		dev_info(&pdev->dev, "SR-IOV is not supported on this device\n");
+
+		return -EOPNOTSUPP;
+	}
+
+	if (num_vfs)
+		return idpf_sriov_ena(adapter, num_vfs);
+
+	if (pci_vfs_assigned(pdev)) {
+		dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs\n");
+
+		return -EBUSY;
+	}
+
+	pci_disable_sriov(adapter->pdev);
+	idpf_send_set_sriov_vfs_msg(adapter, 0);
+	adapter->num_vfs = 0;
+
+	return 0;
+}
+
+/**
+ * idpf_deinit_task - Device deinit routine
+ * @adapter: Driver specific private structure
+ *
+ * Extended remove logic which will be used for
+ * hard reset as well
+ */
+void idpf_deinit_task(struct idpf_adapter *adapter)
+{
+	unsigned int i;
+
+	/* Wait until the init_task is done else this thread might release
+	 * the resources first and the other thread might end up in a bad state
+	 */
+	cancel_delayed_work_sync(&adapter->init_task);
+
+	if (!adapter->vports)
+		return;
+
+	cancel_delayed_work_sync(&adapter->stats_task);
+
+	for (i = 0; i < adapter->max_vports; i++) {
+		if (adapter->vports[i])
+			idpf_vport_dealloc(adapter->vports[i]);
+	}
+}
+
+/**
+ * idpf_check_reset_complete - check that reset is complete
+ * @hw: pointer to hw struct
+ * @reset_reg: struct with reset registers
+ *
+ * Returns 0 if device is ready to use, or -EBUSY if it's in reset.
+ **/
+static int idpf_check_reset_complete(struct idpf_hw *hw,
+				     struct idpf_reset_reg *reset_reg)
+{
+	struct idpf_adapter *adapter = hw->back;
+	int i;
+
+	for (i = 0; i < 2000; i++) {
+		u32 reg_val = readl(reset_reg->rstat);
+
+		/* 0xFFFFFFFF might be read if other side hasn't cleared the
+		 * register for us yet and 0xFFFFFFFF is not a valid value for
+		 * the register, so treat that as invalid.
+		 */
+		if (reg_val != 0xFFFFFFFF && (reg_val & reset_reg->rstat_m))
+			return 0;
+
+		usleep_range(5000, 10000);
+	}
+
+	dev_warn(&adapter->pdev->dev, "Device reset timeout!\n");
+	/* Clear the reset flag unconditionally here since the reset
+	 * technically isn't in progress anymore from the driver's perspective
+	 */
+	clear_bit(IDPF_HR_RESET_IN_PROG, adapter->flags);
+
+	return -EBUSY;
+}
+
+/**
+ * idpf_set_vport_state - Set the vport state to be after the reset
+ * @adapter: Driver specific private structure
+ */
+static void idpf_set_vport_state(struct idpf_adapter *adapter)
+{
+	u16 i;
+
+	for (i = 0; i < adapter->max_vports; i++) {
+		struct idpf_netdev_priv *np;
+
+		if (!adapter->netdevs[i])
+			continue;
+
+		np = netdev_priv(adapter->netdevs[i]);
+		if (np->state == __IDPF_VPORT_UP)
+			set_bit(IDPF_VPORT_UP_REQUESTED,
+				adapter->vport_config[i]->flags);
+	}
+}
+
+/**
+ * idpf_init_hard_reset - Initiate a hardware reset
+ * @adapter: Driver specific private structure
+ *
+ * Deallocate the vports and all the resources associated with them and
+ * reallocate. Also reinitialize the mailbox. Return 0 on success,
+ * negative on failure.
+ */
+static int idpf_init_hard_reset(struct idpf_adapter *adapter)
+{
+	struct idpf_reg_ops *reg_ops = &adapter->dev_ops.reg_ops;
+	struct device *dev = &adapter->pdev->dev;
+	struct net_device *netdev;
+	int err;
+	u16 i;
+
+	mutex_lock(&adapter->vport_ctrl_lock);
+
+	dev_info(dev, "Device HW Reset initiated\n");
+
+	/* Avoid TX hangs on reset */
+	for (i = 0; i < adapter->max_vports; i++) {
+		netdev = adapter->netdevs[i];
+		if (!netdev)
+			continue;
+
+		netif_carrier_off(netdev);
+		netif_tx_disable(netdev);
+	}
+
+	/* Prepare for reset */
+	if (test_and_clear_bit(IDPF_HR_DRV_LOAD, adapter->flags)) {
+		reg_ops->trigger_reset(adapter, IDPF_HR_DRV_LOAD);
+	} else if (test_and_clear_bit(IDPF_HR_FUNC_RESET, adapter->flags)) {
+		bool is_reset = idpf_is_reset_detected(adapter);
+
+		idpf_set_vport_state(adapter);
+		idpf_vc_core_deinit(adapter);
+		if (!is_reset)
+			reg_ops->trigger_reset(adapter, IDPF_HR_FUNC_RESET);
+		idpf_deinit_dflt_mbx(adapter);
+	} else {
+		dev_err(dev, "Unhandled hard reset cause\n");
+		err = -EBADRQC;
+		goto unlock_mutex;
+	}
+
+	/* Wait for reset to complete */
+	err = idpf_check_reset_complete(&adapter->hw, &adapter->reset_reg);
+	if (err) {
+		dev_err(dev, "The driver was unable to contact the device's firmware. Check that the FW is running. Driver state= 0x%x\n",
+			adapter->state);
+		goto unlock_mutex;
+	}
+
+	/* Reset is complete and so start building the driver resources again */
+	err = idpf_init_dflt_mbx(adapter);
+	if (err) {
+		dev_err(dev, "Failed to initialize default mailbox: %d\n", err);
+		goto unlock_mutex;
+	}
+
+	/* Initialize the state machine, also allocate memory and request
+	 * resources
+	 */
+	err = idpf_vc_core_init(adapter);
+	if (err) {
+		idpf_deinit_dflt_mbx(adapter);
+		goto unlock_mutex;
+	}
+
+	/* Wait till all the vports are initialized to release the reset lock,
+	 * else user space callbacks may access uninitialized vports
+	 */
+	while (test_bit(IDPF_HR_RESET_IN_PROG, adapter->flags))
+		msleep(100);
+
+unlock_mutex:
+	mutex_unlock(&adapter->vport_ctrl_lock);
+
+	return err;
+}
+
+/**
+ * idpf_vc_event_task - Handle virtchannel event logic
+ * @work: work queue struct
+ */
+void idpf_vc_event_task(struct work_struct *work)
+{
+	struct idpf_adapter *adapter;
+
+	adapter = container_of(work, struct idpf_adapter, vc_event_task.work);
+
+	if (test_bit(IDPF_REMOVE_IN_PROG, adapter->flags))
+		return;
+
+	if (test_bit(IDPF_HR_FUNC_RESET, adapter->flags) ||
+	    test_bit(IDPF_HR_DRV_LOAD, adapter->flags)) {
+		set_bit(IDPF_HR_RESET_IN_PROG, adapter->flags);
+		idpf_init_hard_reset(adapter);
+	}
+}
+
+/**
+ * idpf_initiate_soft_reset - Initiate a software reset
+ * @vport: virtual port data struct
+ * @reset_cause: reason for the soft reset
+ *
+ * Soft reset only reallocs vport queue resources. Returns 0 on success,
+ * negative on failure.
+ */
+int idpf_initiate_soft_reset(struct idpf_vport *vport,
+			     enum idpf_vport_reset_cause reset_cause)
+{
+	struct idpf_netdev_priv *np = netdev_priv(vport->netdev);
+	enum idpf_vport_state current_state = np->state;
+	struct idpf_adapter *adapter = vport->adapter;
+	struct idpf_vport *new_vport;
+	int err, i;
+
+	/* If the system is low on memory, we can end up in bad state if we
+	 * free all the memory for queue resources and try to allocate them
+	 * again. Instead, we can pre-allocate the new resources before doing
+	 * anything and bailing if the alloc fails.
+	 *
+	 * Make a clone of the existing vport to mimic its current
+	 * configuration, then modify the new structure with any requested
+	 * changes. Once the allocation of the new resources is done, stop the
+	 * existing vport and copy the configuration to the main vport. If an
+	 * error occurred, the existing vport will be untouched.
+	 *
+	 */
+	new_vport = kzalloc(sizeof(*vport), GFP_KERNEL);
+	if (!new_vport)
+		return -ENOMEM;
+
+	/* This purposely avoids copying the end of the struct because it
+	 * contains wait_queues and mutexes and other stuff we don't want to
+	 * mess with. Nothing below should use those variables from new_vport
+	 * and should instead always refer to them in vport if they need to.
+	 */
+	memcpy(new_vport, vport, offsetof(struct idpf_vport, vc_state));
+
+	/* Adjust resource parameters prior to reallocating resources */
+	switch (reset_cause) {
+	case IDPF_SR_Q_CHANGE:
+		err = idpf_vport_adjust_qs(new_vport);
+		if (err)
+			goto free_vport;
+		break;
+	case IDPF_SR_Q_DESC_CHANGE:
+		/* Update queue parameters before allocating resources */
+		idpf_vport_calc_num_q_desc(new_vport);
+		break;
+	case IDPF_SR_MTU_CHANGE:
+	case IDPF_SR_RSC_CHANGE:
+		break;
+	default:
+		dev_err(&adapter->pdev->dev, "Unhandled soft reset cause\n");
+		err = -EINVAL;
+		goto free_vport;
+	}
+
+	err = idpf_vport_queues_alloc(new_vport);
+	if (err)
+		goto free_vport;
+	if (current_state <= __IDPF_VPORT_DOWN) {
+		idpf_send_delete_queues_msg(vport);
+	} else {
+		set_bit(IDPF_VPORT_DEL_QUEUES, vport->flags);
+		idpf_vport_stop(vport);
+	}
+
+	idpf_deinit_rss(vport);
+	/* We're passing in vport here because we need its wait_queue
+	 * to send a message and it should be getting all the vport
+	 * config data out of the adapter but we need to be careful not
+	 * to add code to add_queues to change the vport config within
+	 * vport itself as it will be wiped with a memcpy later.
+	 */
+	err = idpf_send_add_queues_msg(vport, new_vport->num_txq,
+				       new_vport->num_complq,
+				       new_vport->num_rxq,
+				       new_vport->num_bufq);
+	if (err)
+		goto err_reset;
+
+	/* Same comment as above regarding avoiding copying the wait_queues and
+	 * mutexes applies here. We do not want to mess with those if possible.
+	 */
+	memcpy(vport, new_vport, offsetof(struct idpf_vport, vc_state));
+
+	/* Since idpf_vport_queues_alloc was called with new_port, the queue
+	 * back pointers are currently pointing to the local new_vport. Reset
+	 * the backpointers to the original vport here
+	 */
+	for (i = 0; i < vport->num_txq_grp; i++) {
+		struct idpf_txq_group *tx_qgrp = &vport->txq_grps[i];
+		int j;
+
+		tx_qgrp->vport = vport;
+		for (j = 0; j < tx_qgrp->num_txq; j++)
+			tx_qgrp->txqs[j]->vport = vport;
+
+		if (idpf_is_queue_model_split(vport->txq_model))
+			tx_qgrp->complq->vport = vport;
+	}
+
+	for (i = 0; i < vport->num_rxq_grp; i++) {
+		struct idpf_rxq_group *rx_qgrp = &vport->rxq_grps[i];
+		struct idpf_queue *q;
+		u16 num_rxq;
+		int j;
+
+		rx_qgrp->vport = vport;
+		for (j = 0; j < vport->num_bufqs_per_qgrp; j++)
+			rx_qgrp->splitq.bufq_sets[j].bufq.vport = vport;
+
+		if (idpf_is_queue_model_split(vport->rxq_model))
+			num_rxq = rx_qgrp->splitq.num_rxq_sets;
+		else
+			num_rxq = rx_qgrp->singleq.num_rxq;
+
+		for (j = 0; j < num_rxq; j++) {
+			if (idpf_is_queue_model_split(vport->rxq_model))
+				q = &rx_qgrp->splitq.rxq_sets[j]->rxq;
+			else
+				q = rx_qgrp->singleq.rxqs[j];
+			q->vport = vport;
+		}
+	}
+
+	if (reset_cause == IDPF_SR_Q_CHANGE)
+		idpf_vport_alloc_vec_indexes(vport);
+
+	err = idpf_set_real_num_queues(vport);
+	if (err)
+		goto err_reset;
+
+	if (current_state == __IDPF_VPORT_UP)
+		err = idpf_vport_open(vport, false);
+
+	kfree(new_vport);
+
+	return err;
+
+err_reset:
+	idpf_vport_queues_rel(new_vport);
+free_vport:
+	kfree(new_vport);
+
+	return err;
+}
+
+/**
+ * idpf_addr_sync - Callback for dev_(mc|uc)_sync to add address
+ * @netdev: the netdevice
+ * @addr: address to add
+ *
+ * Called by __dev_(mc|uc)_sync when an address needs to be added. We call
+ * __dev_(uc|mc)_sync from .set_rx_mode. Kernel takes addr_list_lock spinlock
+ * meaning we cannot sleep in this context. Due to this, we have to add the
+ * filter and send the virtchnl message asynchronously without waiting for the
+ * response from the other side. We won't know whether or not the operation
+ * actually succeeded until we get the message back.  Returns 0 on success,
+ * negative on failure.
+ */
+static int idpf_addr_sync(struct net_device *netdev, const u8 *addr)
+{
+	struct idpf_netdev_priv *np = netdev_priv(netdev);
+
+	return idpf_add_mac_filter(np->vport, np, addr, true);
+}
+
+/**
+ * idpf_addr_unsync - Callback for dev_(mc|uc)_sync to remove address
+ * @netdev: the netdevice
+ * @addr: address to add
+ *
+ * Called by __dev_(mc|uc)_sync when an address needs to be added. We call
+ * __dev_(uc|mc)_sync from .set_rx_mode. Kernel takes addr_list_lock spinlock
+ * meaning we cannot sleep in this context. Due to this we have to delete the
+ * filter and send the virtchnl message asynchronously without waiting for the
+ * return from the other side.  We won't know whether or not the operation
+ * actually succeeded until we get the message back. Returns 0 on success,
+ * negative on failure.
+ */
+static int idpf_addr_unsync(struct net_device *netdev, const u8 *addr)
+{
+	struct idpf_netdev_priv *np = netdev_priv(netdev);
+
+	/* 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;
+
+	idpf_del_mac_filter(np->vport, np, addr, true);
+
+	return 0;
+}
+
+/**
+ * idpf_set_rx_mode - NDO callback to set the netdev filters
+ * @netdev: network interface device structure
+ *
+ * Stack takes addr_list_lock spinlock before calling our .set_rx_mode.  We
+ * cannot sleep in this context.
+ */
+static void idpf_set_rx_mode(struct net_device *netdev)
+{
+	struct idpf_netdev_priv *np = netdev_priv(netdev);
+	struct idpf_vport_user_config_data *config_data;
+	struct idpf_adapter *adapter;
+	bool changed = false;
+	struct device *dev;
+	int err;
+
+	adapter = np->adapter;
+	dev = &adapter->pdev->dev;
+
+	if (idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_MACFILTER)) {
+		__dev_uc_sync(netdev, idpf_addr_sync, idpf_addr_unsync);
+		__dev_mc_sync(netdev, idpf_addr_sync, idpf_addr_unsync);
+	}
+
+	if (!idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_PROMISC))
+		return;
+
+	config_data = &adapter->vport_config[np->vport_idx]->user_config;
+	/* IFF_PROMISC enables both unicast and multicast promiscuous,
+	 * while IFF_ALLMULTI only enables multicast such that:
+	 *
+	 * promisc  + allmulti		= unicast | multicast
+	 * promisc  + !allmulti		= unicast | multicast
+	 * !promisc + allmulti		= multicast
+	 */
+	if ((netdev->flags & IFF_PROMISC) &&
+	    !test_and_set_bit(__IDPF_PROMISC_UC, config_data->user_flags)) {
+		changed = true;
+		dev_info(&adapter->pdev->dev, "Entering promiscuous mode\n");
+		if (!test_and_set_bit(__IDPF_PROMISC_MC, adapter->flags))
+			dev_info(dev, "Entering multicast promiscuous mode\n");
+	}
+
+	if (!(netdev->flags & IFF_PROMISC) &&
+	    test_and_clear_bit(__IDPF_PROMISC_UC, config_data->user_flags)) {
+		changed = true;
+		dev_info(dev, "Leaving promiscuous mode\n");
+	}
+
+	if (netdev->flags & IFF_ALLMULTI &&
+	    !test_and_set_bit(__IDPF_PROMISC_MC, config_data->user_flags)) {
+		changed = true;
+		dev_info(dev, "Entering multicast promiscuous mode\n");
+	}
+
+	if (!(netdev->flags & (IFF_ALLMULTI | IFF_PROMISC)) &&
+	    test_and_clear_bit(__IDPF_PROMISC_MC, config_data->user_flags)) {
+		changed = true;
+		dev_info(dev, "Leaving multicast promiscuous mode\n");
+	}
+
+	if (!changed)
+		return;
+
+	err = idpf_set_promiscuous(adapter, config_data, np->vport_id);
+	if (err)
+		dev_err(dev, "Failed to set promiscuous mode: %d\n", err);
+}
+
+/**
+ * idpf_vport_manage_rss_lut - disable/enable RSS
+ * @vport: the vport being changed
+ *
+ * In the event of disable request for RSS, this function will zero out RSS
+ * LUT, while in the event of enable request for RSS, it will reconfigure RSS
+ * LUT with the default LUT configuration.
+ */
+static int idpf_vport_manage_rss_lut(struct idpf_vport *vport)
+{
+	bool ena = idpf_is_feature_ena(vport, NETIF_F_RXHASH);
+	struct idpf_rss_data *rss_data;
+	u16 idx = vport->idx;
+	int lut_size;
+
+	rss_data = &vport->adapter->vport_config[idx]->user_config.rss_data;
+	lut_size = rss_data->rss_lut_size * sizeof(u32);
+
+	if (ena) {
+		/* This will contain the default or user configured LUT */
+		memcpy(rss_data->rss_lut, rss_data->cached_lut, lut_size);
+	} else {
+		/* Save a copy of the current LUT to be restored later if
+		 * requested.
+		 */
+		memcpy(rss_data->cached_lut, rss_data->rss_lut, lut_size);
+
+		/* Zero out the current LUT to disable */
+		memset(rss_data->rss_lut, 0, lut_size);
+	}
+
+	return idpf_config_rss(vport);
+}
+
+/**
+ * idpf_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 idpf_set_features(struct net_device *netdev,
+			     netdev_features_t features)
+{
+	netdev_features_t changed = netdev->features ^ features;
+	struct idpf_adapter *adapter;
+	struct idpf_vport *vport;
+	int err = 0;
+
+	idpf_vport_ctrl_lock(netdev);
+	vport = idpf_netdev_to_vport(netdev);
+
+	adapter = vport->adapter;
+
+	if (idpf_is_reset_in_prog(adapter)) {
+		dev_err(&adapter->pdev->dev, "Device is resetting, changing netdev features temporarily unavailable.\n");
+		err = -EBUSY;
+		goto unlock_mutex;
+	}
+
+	if (changed & NETIF_F_RXHASH) {
+		netdev->features ^= NETIF_F_RXHASH;
+		err = idpf_vport_manage_rss_lut(vport);
+		if (err)
+			goto unlock_mutex;
+	}
+
+	if (changed & NETIF_F_GRO_HW) {
+		netdev->features ^= NETIF_F_GRO_HW;
+		err = idpf_initiate_soft_reset(vport, IDPF_SR_RSC_CHANGE);
+		if (err)
+			goto unlock_mutex;
+	}
+
+	if (changed & NETIF_F_LOOPBACK) {
+		netdev->features ^= NETIF_F_LOOPBACK;
+		err = idpf_send_ena_dis_loopback_msg(vport);
+	}
+
+unlock_mutex:
+	idpf_vport_ctrl_unlock(netdev);
+
+	return err;
+}
+
+/**
+ * idpf_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
+ */
+static int idpf_open(struct net_device *netdev)
+{
+	struct idpf_vport *vport;
+	int err;
+
+	idpf_vport_ctrl_lock(netdev);
+	vport = idpf_netdev_to_vport(netdev);
+
+	err = idpf_vport_open(vport, true);
+
+	idpf_vport_ctrl_unlock(netdev);
+
+	return err;
+}
+
+/**
+ * idpf_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 idpf_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	struct idpf_vport *vport;
+	int err;
+
+	idpf_vport_ctrl_lock(netdev);
+	vport = idpf_netdev_to_vport(netdev);
+
+	netdev->mtu = new_mtu;
+
+	err = idpf_initiate_soft_reset(vport, IDPF_SR_MTU_CHANGE);
+
+	idpf_vport_ctrl_unlock(netdev);
+
+	return err;
+}
+
+/**
+ * idpf_features_check - Validate packet conforms to limits
+ * @skb: skb buffer
+ * @netdev: This port's netdev
+ * @features: Offload features that the stack believes apply
+ */
+static netdev_features_t idpf_features_check(struct sk_buff *skb,
+					     struct net_device *netdev,
+					     netdev_features_t features)
+{
+	struct idpf_vport *vport = idpf_netdev_to_vport(netdev);
+	struct idpf_adapter *adapter = vport->adapter;
+	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
+	 * 88 bytes. If it is then we need to drop support for GSO.
+	 */
+	if (skb_is_gso(skb) &&
+	    (skb_shinfo(skb)->gso_size < IDPF_TX_TSO_MIN_MSS))
+		features &= ~NETIF_F_GSO_MASK;
+
+	/* Ensure MACLEN is <= 126 bytes (63 words) and not an odd size */
+	len = skb_network_offset(skb);
+	if (unlikely(len & ~(126)))
+		goto unsupported;
+
+	len = skb_network_header_len(skb);
+	if (unlikely(len > idpf_get_max_tx_hdr_size(adapter)))
+		goto unsupported;
+
+	if (!skb->encapsulation)
+		return features;
+
+	/* L4TUNLEN can support 127 words */
+	len = skb_inner_network_header(skb) - skb_transport_header(skb);
+	if (unlikely(len & ~(127 * 2)))
+		goto unsupported;
+
+	/* IPLEN can support at most 127 dwords */
+	len = skb_inner_network_header_len(skb);
+	if (unlikely(len > idpf_get_max_tx_hdr_size(adapter)))
+		goto unsupported;
+
+	/* No need to validate L4LEN as TCP is the only protocol with a
+	 * a flexible value and we support all possible values supported
+	 * by TCP, which is at most 15 dwords
+	 */
+
+	return features;
+
+unsupported:
+	return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
+}
+
+/**
+ * idpf_set_mac - NDO callback to set port mac address
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int idpf_set_mac(struct net_device *netdev, void *p)
+{
+	struct idpf_netdev_priv *np = netdev_priv(netdev);
+	struct idpf_vport_config *vport_config;
+	struct sockaddr *addr = p;
+	struct idpf_vport *vport;
+	int err = 0;
+
+	idpf_vport_ctrl_lock(netdev);
+	vport = idpf_netdev_to_vport(netdev);
+
+	if (!idpf_is_cap_ena(vport->adapter, IDPF_OTHER_CAPS,
+			     VIRTCHNL2_CAP_MACFILTER)) {
+		dev_info(&vport->adapter->pdev->dev, "Setting MAC address is not supported\n");
+		err = -EOPNOTSUPP;
+		goto unlock_mutex;
+	}
+
+	if (!is_valid_ether_addr(addr->sa_data)) {
+		dev_info(&vport->adapter->pdev->dev, "Invalid MAC address: %pM\n",
+			 addr->sa_data);
+		err = -EADDRNOTAVAIL;
+		goto unlock_mutex;
+	}
+
+	if (ether_addr_equal(netdev->dev_addr, addr->sa_data))
+		goto unlock_mutex;
+
+	vport_config = vport->adapter->vport_config[vport->idx];
+	err = idpf_add_mac_filter(vport, np, addr->sa_data, false);
+	if (err) {
+		__idpf_del_mac_filter(vport_config, addr->sa_data);
+		goto unlock_mutex;
+	}
+
+	if (is_valid_ether_addr(vport->default_mac_addr))
+		idpf_del_mac_filter(vport, np, vport->default_mac_addr, false);
+
+	ether_addr_copy(vport->default_mac_addr, addr->sa_data);
+	eth_hw_addr_set(netdev, addr->sa_data);
+
+unlock_mutex:
+	idpf_vport_ctrl_unlock(netdev);
+
+	return err;
+}
+
+/**
+ * idpf_alloc_dma_mem - Allocate dma memory
+ * @hw: pointer to hw struct
+ * @mem: pointer to dma_mem struct
+ * @size: size of the memory to allocate
+ */
+void *idpf_alloc_dma_mem(struct idpf_hw *hw, struct idpf_dma_mem *mem, u64 size)
+{
+	struct idpf_adapter *adapter = hw->back;
+	size_t sz = ALIGN(size, 4096);
+
+	mem->va = dma_alloc_coherent(&adapter->pdev->dev, sz,
+				     &mem->pa, GFP_KERNEL);
+	mem->size = sz;
+
+	return mem->va;
+}
+
+/**
+ * idpf_free_dma_mem - Free the allocated dma memory
+ * @hw: pointer to hw struct
+ * @mem: pointer to dma_mem struct
+ */
+void idpf_free_dma_mem(struct idpf_hw *hw, struct idpf_dma_mem *mem)
+{
+	struct idpf_adapter *adapter = hw->back;
+
+	dma_free_coherent(&adapter->pdev->dev, mem->size,
+			  mem->va, mem->pa);
+	mem->size = 0;
+	mem->va = NULL;
+	mem->pa = 0;
+}
+
+static const struct net_device_ops idpf_netdev_ops_splitq = {
+	.ndo_open = idpf_open,
+	.ndo_stop = idpf_stop,
+	.ndo_start_xmit = idpf_tx_splitq_start,
+	.ndo_features_check = idpf_features_check,
+	.ndo_set_rx_mode = idpf_set_rx_mode,
+	.ndo_validate_addr = eth_validate_addr,
+	.ndo_set_mac_address = idpf_set_mac,
+	.ndo_change_mtu = idpf_change_mtu,
+	.ndo_get_stats64 = idpf_get_stats64,
+	.ndo_set_features = idpf_set_features,
+	.ndo_tx_timeout = idpf_tx_timeout,
+};
+
+static const struct net_device_ops idpf_netdev_ops_singleq = {
+	.ndo_open = idpf_open,
+	.ndo_stop = idpf_stop,
+	.ndo_start_xmit = idpf_tx_singleq_start,
+	.ndo_features_check = idpf_features_check,
+	.ndo_set_rx_mode = idpf_set_rx_mode,
+	.ndo_validate_addr = eth_validate_addr,
+	.ndo_set_mac_address = idpf_set_mac,
+	.ndo_change_mtu = idpf_change_mtu,
+	.ndo_get_stats64 = idpf_get_stats64,
+	.ndo_set_features = idpf_set_features,
+	.ndo_tx_timeout = idpf_tx_timeout,
+};