Adding upstream version 5.10.209.upstream/5.10.209

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

8 files changed, 3954 insertions, 0 deletions

diff --git a/drivers/soc/fsl/dpio/Makefile b/drivers/soc/fsl/dpio/Makefile
new file mode 100644
index 000000000..b9ff24c76
--- /dev/null
+++ b/drivers/soc/fsl/dpio/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# QorIQ DPAA2 DPIO driver
+#
+
+obj-$(CONFIG_FSL_MC_DPIO) += fsl-mc-dpio.o
+
+fsl-mc-dpio-objs := dpio.o qbman-portal.o dpio-service.o dpio-driver.o
diff --git a/drivers/soc/fsl/dpio/dpio-cmd.h b/drivers/soc/fsl/dpio/dpio-cmd.h
new file mode 100644
index 000000000..e13fd3ac1
--- /dev/null
+++ b/drivers/soc/fsl/dpio/dpio-cmd.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ */
+#ifndef _FSL_DPIO_CMD_H
+#define _FSL_DPIO_CMD_H
+
+/* DPIO Version */
+#define DPIO_VER_MAJOR			4
+#define DPIO_VER_MINOR			2
+
+/* Command Versioning */
+
+#define DPIO_CMD_ID_OFFSET		4
+#define DPIO_CMD_BASE_VERSION		1
+
+#define DPIO_CMD(id)	(((id) << DPIO_CMD_ID_OFFSET) | DPIO_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPIO_CMDID_CLOSE				DPIO_CMD(0x800)
+#define DPIO_CMDID_OPEN					DPIO_CMD(0x803)
+#define DPIO_CMDID_GET_API_VERSION			DPIO_CMD(0xa03)
+#define DPIO_CMDID_ENABLE				DPIO_CMD(0x002)
+#define DPIO_CMDID_DISABLE				DPIO_CMD(0x003)
+#define DPIO_CMDID_GET_ATTR				DPIO_CMD(0x004)
+#define DPIO_CMDID_RESET				DPIO_CMD(0x005)
+#define DPIO_CMDID_SET_STASHING_DEST			DPIO_CMD(0x120)
+
+struct dpio_cmd_open {
+	__le32 dpio_id;
+};
+
+#define DPIO_CHANNEL_MODE_MASK		0x3
+
+struct dpio_rsp_get_attr {
+	/* cmd word 0 */
+	__le32 id;
+	__le16 qbman_portal_id;
+	u8 num_priorities;
+	u8 channel_mode;
+	/* cmd word 1 */
+	__le64 qbman_portal_ce_addr;
+	/* cmd word 2 */
+	__le64 qbman_portal_ci_addr;
+	/* cmd word 3 */
+	__le32 qbman_version;
+};
+
+struct dpio_stashing_dest {
+	u8 sdest;
+};
+
+#endif /* _FSL_DPIO_CMD_H */
diff --git a/drivers/soc/fsl/dpio/dpio-driver.c b/drivers/soc/fsl/dpio/dpio-driver.c
new file mode 100644
index 000000000..7f397b4ad
--- /dev/null
+++ b/drivers/soc/fsl/dpio/dpio-driver.c
@@ -0,0 +1,343 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright NXP 2016
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/msi.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/sys_soc.h>
+
+#include <linux/fsl/mc.h>
+#include <soc/fsl/dpaa2-io.h>
+
+#include "qbman-portal.h"
+#include "dpio.h"
+#include "dpio-cmd.h"
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Freescale Semiconductor, Inc");
+MODULE_DESCRIPTION("DPIO Driver");
+
+struct dpio_priv {
+	struct dpaa2_io *io;
+};
+
+static cpumask_var_t cpus_unused_mask;
+
+static const struct soc_device_attribute ls1088a_soc[] = {
+	{.family = "QorIQ LS1088A"},
+	{ /* sentinel */ }
+};
+
+static const struct soc_device_attribute ls2080a_soc[] = {
+	{.family = "QorIQ LS2080A"},
+	{ /* sentinel */ }
+};
+
+static const struct soc_device_attribute ls2088a_soc[] = {
+	{.family = "QorIQ LS2088A"},
+	{ /* sentinel */ }
+};
+
+static const struct soc_device_attribute lx2160a_soc[] = {
+	{.family = "QorIQ LX2160A"},
+	{ /* sentinel */ }
+};
+
+static int dpaa2_dpio_get_cluster_sdest(struct fsl_mc_device *dpio_dev, int cpu)
+{
+	int cluster_base, cluster_size;
+
+	if (soc_device_match(ls1088a_soc)) {
+		cluster_base = 2;
+		cluster_size = 4;
+	} else if (soc_device_match(ls2080a_soc) ||
+		   soc_device_match(ls2088a_soc) ||
+		   soc_device_match(lx2160a_soc)) {
+		cluster_base = 0;
+		cluster_size = 2;
+	} else {
+		dev_err(&dpio_dev->dev, "unknown SoC version\n");
+		return -1;
+	}
+
+	return cluster_base + cpu / cluster_size;
+}
+
+static irqreturn_t dpio_irq_handler(int irq_num, void *arg)
+{
+	struct device *dev = (struct device *)arg;
+	struct dpio_priv *priv = dev_get_drvdata(dev);
+
+	return dpaa2_io_irq(priv->io);
+}
+
+static void unregister_dpio_irq_handlers(struct fsl_mc_device *dpio_dev)
+{
+	struct fsl_mc_device_irq *irq;
+
+	irq = dpio_dev->irqs[0];
+
+	/* clear the affinity hint */
+	irq_set_affinity_hint(irq->msi_desc->irq, NULL);
+}
+
+static int register_dpio_irq_handlers(struct fsl_mc_device *dpio_dev, int cpu)
+{
+	int error;
+	struct fsl_mc_device_irq *irq;
+
+	irq = dpio_dev->irqs[0];
+	error = devm_request_irq(&dpio_dev->dev,
+				 irq->msi_desc->irq,
+				 dpio_irq_handler,
+				 0,
+				 dev_name(&dpio_dev->dev),
+				 &dpio_dev->dev);
+	if (error < 0) {
+		dev_err(&dpio_dev->dev,
+			"devm_request_irq() failed: %d\n",
+			error);
+		return error;
+	}
+
+	/* set the affinity hint */
+	if (irq_set_affinity_hint(irq->msi_desc->irq, cpumask_of(cpu)))
+		dev_err(&dpio_dev->dev,
+			"irq_set_affinity failed irq %d cpu %d\n",
+			irq->msi_desc->irq, cpu);
+
+	return 0;
+}
+
+static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
+{
+	struct dpio_attr dpio_attrs;
+	struct dpaa2_io_desc desc;
+	struct dpio_priv *priv;
+	int err = -ENOMEM;
+	struct device *dev = &dpio_dev->dev;
+	int possible_next_cpu;
+	int sdest;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		goto err_priv_alloc;
+
+	dev_set_drvdata(dev, priv);
+
+	err = fsl_mc_portal_allocate(dpio_dev, 0, &dpio_dev->mc_io);
+	if (err) {
+		dev_dbg(dev, "MC portal allocation failed\n");
+		err = -EPROBE_DEFER;
+		goto err_priv_alloc;
+	}
+
+	err = dpio_open(dpio_dev->mc_io, 0, dpio_dev->obj_desc.id,
+			&dpio_dev->mc_handle);
+	if (err) {
+		dev_err(dev, "dpio_open() failed\n");
+		goto err_open;
+	}
+
+	err = dpio_reset(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+	if (err) {
+		dev_err(dev, "dpio_reset() failed\n");
+		goto err_reset;
+	}
+
+	err = dpio_get_attributes(dpio_dev->mc_io, 0, dpio_dev->mc_handle,
+				  &dpio_attrs);
+	if (err) {
+		dev_err(dev, "dpio_get_attributes() failed %d\n", err);
+		goto err_get_attr;
+	}
+	desc.qman_version = dpio_attrs.qbman_version;
+
+	err = dpio_enable(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+	if (err) {
+		dev_err(dev, "dpio_enable() failed %d\n", err);
+		goto err_get_attr;
+	}
+
+	/* initialize DPIO descriptor */
+	desc.receives_notifications = dpio_attrs.num_priorities ? 1 : 0;
+	desc.has_8prio = dpio_attrs.num_priorities == 8 ? 1 : 0;
+	desc.dpio_id = dpio_dev->obj_desc.id;
+
+	/* get the cpu to use for the affinity hint */
+	possible_next_cpu = cpumask_first(cpus_unused_mask);
+	if (possible_next_cpu >= nr_cpu_ids) {
+		dev_err(dev, "probe failed. Number of DPIOs exceeds NR_CPUS.\n");
+		err = -ERANGE;
+		goto err_allocate_irqs;
+	}
+	desc.cpu = possible_next_cpu;
+	cpumask_clear_cpu(possible_next_cpu, cpus_unused_mask);
+
+	sdest = dpaa2_dpio_get_cluster_sdest(dpio_dev, desc.cpu);
+	if (sdest >= 0) {
+		err = dpio_set_stashing_destination(dpio_dev->mc_io, 0,
+						    dpio_dev->mc_handle,
+						    sdest);
+		if (err)
+			dev_err(dev, "dpio_set_stashing_destination failed for cpu%d\n",
+				desc.cpu);
+	}
+
+	if (dpio_dev->obj_desc.region_count < 3) {
+		/* No support for DDR backed portals, use classic mapping */
+		/*
+		 * Set the CENA regs to be the cache inhibited area of the
+		 * portal to avoid coherency issues if a user migrates to
+		 * another core.
+		 */
+		desc.regs_cena = devm_memremap(dev, dpio_dev->regions[1].start,
+					resource_size(&dpio_dev->regions[1]),
+					MEMREMAP_WC);
+	} else {
+		desc.regs_cena = devm_memremap(dev, dpio_dev->regions[2].start,
+					resource_size(&dpio_dev->regions[2]),
+					MEMREMAP_WB);
+	}
+
+	if (IS_ERR(desc.regs_cena)) {
+		dev_err(dev, "devm_memremap failed\n");
+		err = PTR_ERR(desc.regs_cena);
+		goto err_allocate_irqs;
+	}
+
+	desc.regs_cinh = devm_ioremap(dev, dpio_dev->regions[1].start,
+				      resource_size(&dpio_dev->regions[1]));
+	if (!desc.regs_cinh) {
+		err = -ENOMEM;
+		dev_err(dev, "devm_ioremap failed\n");
+		goto err_allocate_irqs;
+	}
+
+	err = fsl_mc_allocate_irqs(dpio_dev);
+	if (err) {
+		dev_err(dev, "fsl_mc_allocate_irqs failed. err=%d\n", err);
+		goto err_allocate_irqs;
+	}
+
+	priv->io = dpaa2_io_create(&desc, dev);
+	if (!priv->io) {
+		dev_err(dev, "dpaa2_io_create failed\n");
+		err = -ENOMEM;
+		goto err_dpaa2_io_create;
+	}
+
+	err = register_dpio_irq_handlers(dpio_dev, desc.cpu);
+	if (err)
+		goto err_register_dpio_irq;
+
+	dev_info(dev, "probed\n");
+	dev_dbg(dev, "   receives_notifications = %d\n",
+		desc.receives_notifications);
+	dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+
+	return 0;
+
+err_dpaa2_io_create:
+	unregister_dpio_irq_handlers(dpio_dev);
+err_register_dpio_irq:
+	fsl_mc_free_irqs(dpio_dev);
+err_allocate_irqs:
+	dpio_disable(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+err_get_attr:
+err_reset:
+	dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+err_open:
+	fsl_mc_portal_free(dpio_dev->mc_io);
+err_priv_alloc:
+	return err;
+}
+
+/* Tear down interrupts for a given DPIO object */
+static void dpio_teardown_irqs(struct fsl_mc_device *dpio_dev)
+{
+	unregister_dpio_irq_handlers(dpio_dev);
+	fsl_mc_free_irqs(dpio_dev);
+}
+
+static int dpaa2_dpio_remove(struct fsl_mc_device *dpio_dev)
+{
+	struct device *dev;
+	struct dpio_priv *priv;
+	int err = 0, cpu;
+
+	dev = &dpio_dev->dev;
+	priv = dev_get_drvdata(dev);
+	cpu = dpaa2_io_get_cpu(priv->io);
+
+	dpaa2_io_down(priv->io);
+
+	dpio_teardown_irqs(dpio_dev);
+
+	cpumask_set_cpu(cpu, cpus_unused_mask);
+
+	err = dpio_open(dpio_dev->mc_io, 0, dpio_dev->obj_desc.id,
+			&dpio_dev->mc_handle);
+	if (err) {
+		dev_err(dev, "dpio_open() failed\n");
+		goto err_open;
+	}
+
+	dpio_disable(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+
+	dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+
+	fsl_mc_portal_free(dpio_dev->mc_io);
+
+	return 0;
+
+err_open:
+	fsl_mc_portal_free(dpio_dev->mc_io);
+
+	return err;
+}
+
+static const struct fsl_mc_device_id dpaa2_dpio_match_id_table[] = {
+	{
+		.vendor = FSL_MC_VENDOR_FREESCALE,
+		.obj_type = "dpio",
+	},
+	{ .vendor = 0x0 }
+};
+
+static struct fsl_mc_driver dpaa2_dpio_driver = {
+	.driver = {
+		.name		= KBUILD_MODNAME,
+		.owner		= THIS_MODULE,
+	},
+	.probe		= dpaa2_dpio_probe,
+	.remove		= dpaa2_dpio_remove,
+	.match_id_table = dpaa2_dpio_match_id_table
+};
+
+static int dpio_driver_init(void)
+{
+	if (!zalloc_cpumask_var(&cpus_unused_mask, GFP_KERNEL))
+		return -ENOMEM;
+	cpumask_copy(cpus_unused_mask, cpu_online_mask);
+
+	return fsl_mc_driver_register(&dpaa2_dpio_driver);
+}
+
+static void dpio_driver_exit(void)
+{
+	free_cpumask_var(cpus_unused_mask);
+	fsl_mc_driver_unregister(&dpaa2_dpio_driver);
+}
+module_init(dpio_driver_init);
+module_exit(dpio_driver_exit);
diff --git a/drivers/soc/fsl/dpio/dpio-service.c b/drivers/soc/fsl/dpio/dpio-service.c
new file mode 100644
index 000000000..779c319a4
--- /dev/null
+++ b/drivers/soc/fsl/dpio/dpio-service.c
@@ -0,0 +1,781 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016-2019 NXP
+ *
+ */
+#include <linux/types.h>
+#include <linux/fsl/mc.h>
+#include <soc/fsl/dpaa2-io.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+#include "dpio.h"
+#include "qbman-portal.h"
+
+struct dpaa2_io {
+	struct dpaa2_io_desc dpio_desc;
+	struct qbman_swp_desc swp_desc;
+	struct qbman_swp *swp;
+	struct list_head node;
+	/* protect against multiple management commands */
+	spinlock_t lock_mgmt_cmd;
+	/* protect notifications list */
+	spinlock_t lock_notifications;
+	struct list_head notifications;
+	struct device *dev;
+};
+
+struct dpaa2_io_store {
+	unsigned int max;
+	dma_addr_t paddr;
+	struct dpaa2_dq *vaddr;
+	void *alloced_addr;    /* unaligned value from kmalloc() */
+	unsigned int idx;      /* position of the next-to-be-returned entry */
+	struct qbman_swp *swp; /* portal used to issue VDQCR */
+	struct device *dev;    /* device used for DMA mapping */
+};
+
+/* keep a per cpu array of DPIOs for fast access */
+static struct dpaa2_io *dpio_by_cpu[NR_CPUS];
+static struct list_head dpio_list = LIST_HEAD_INIT(dpio_list);
+static DEFINE_SPINLOCK(dpio_list_lock);
+
+static inline struct dpaa2_io *service_select_by_cpu(struct dpaa2_io *d,
+						     int cpu)
+{
+	if (d)
+		return d;
+
+	if (cpu != DPAA2_IO_ANY_CPU && cpu >= num_possible_cpus())
+		return NULL;
+
+	/*
+	 * If cpu == -1, choose the current cpu, with no guarantees about
+	 * potentially being migrated away.
+	 */
+	if (cpu < 0)
+		cpu = raw_smp_processor_id();
+
+	/* If a specific cpu was requested, pick it up immediately */
+	return dpio_by_cpu[cpu];
+}
+
+static inline struct dpaa2_io *service_select(struct dpaa2_io *d)
+{
+	if (d)
+		return d;
+
+	d = service_select_by_cpu(d, -1);
+	if (d)
+		return d;
+
+	spin_lock(&dpio_list_lock);
+	d = list_entry(dpio_list.next, struct dpaa2_io, node);
+	list_del(&d->node);
+	list_add_tail(&d->node, &dpio_list);
+	spin_unlock(&dpio_list_lock);
+
+	return d;
+}
+
+/**
+ * dpaa2_io_service_select() - return a dpaa2_io service affined to this cpu
+ * @cpu: the cpu id
+ *
+ * Return the affine dpaa2_io service, or NULL if there is no service affined
+ * to the specified cpu. If DPAA2_IO_ANY_CPU is used, return the next available
+ * service.
+ */
+struct dpaa2_io *dpaa2_io_service_select(int cpu)
+{
+	if (cpu == DPAA2_IO_ANY_CPU)
+		return service_select(NULL);
+
+	return service_select_by_cpu(NULL, cpu);
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_service_select);
+
+/**
+ * dpaa2_io_create() - create a dpaa2_io object.
+ * @desc: the dpaa2_io descriptor
+ * @dev: the actual DPIO device
+ *
+ * Activates a "struct dpaa2_io" corresponding to the given config of an actual
+ * DPIO object.
+ *
+ * Return a valid dpaa2_io object for success, or NULL for failure.
+ */
+struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc,
+				 struct device *dev)
+{
+	struct dpaa2_io *obj = kmalloc(sizeof(*obj), GFP_KERNEL);
+
+	if (!obj)
+		return NULL;
+
+	/* check if CPU is out of range (-1 means any cpu) */
+	if (desc->cpu != DPAA2_IO_ANY_CPU && desc->cpu >= num_possible_cpus()) {
+		kfree(obj);
+		return NULL;
+	}
+
+	obj->dpio_desc = *desc;
+	obj->swp_desc.cena_bar = obj->dpio_desc.regs_cena;
+	obj->swp_desc.cinh_bar = obj->dpio_desc.regs_cinh;
+	obj->swp_desc.qman_version = obj->dpio_desc.qman_version;
+	obj->swp = qbman_swp_init(&obj->swp_desc);
+
+	if (!obj->swp) {
+		kfree(obj);
+		return NULL;
+	}
+
+	INIT_LIST_HEAD(&obj->node);
+	spin_lock_init(&obj->lock_mgmt_cmd);
+	spin_lock_init(&obj->lock_notifications);
+	INIT_LIST_HEAD(&obj->notifications);
+
+	/* For now only enable DQRR interrupts */
+	qbman_swp_interrupt_set_trigger(obj->swp,
+					QBMAN_SWP_INTERRUPT_DQRI);
+	qbman_swp_interrupt_clear_status(obj->swp, 0xffffffff);
+	if (obj->dpio_desc.receives_notifications)
+		qbman_swp_push_set(obj->swp, 0, 1);
+
+	spin_lock(&dpio_list_lock);
+	list_add_tail(&obj->node, &dpio_list);
+	if (desc->cpu >= 0 && !dpio_by_cpu[desc->cpu])
+		dpio_by_cpu[desc->cpu] = obj;
+	spin_unlock(&dpio_list_lock);
+
+	obj->dev = dev;
+
+	return obj;
+}
+
+/**
+ * dpaa2_io_down() - release the dpaa2_io object.
+ * @d: the dpaa2_io object to be released.
+ *
+ * The "struct dpaa2_io" type can represent an individual DPIO object (as
+ * described by "struct dpaa2_io_desc") or an instance of a "DPIO service",
+ * which can be used to group/encapsulate multiple DPIO objects. In all cases,
+ * each handle obtained should be released using this function.
+ */
+void dpaa2_io_down(struct dpaa2_io *d)
+{
+	spin_lock(&dpio_list_lock);
+	dpio_by_cpu[d->dpio_desc.cpu] = NULL;
+	list_del(&d->node);
+	spin_unlock(&dpio_list_lock);
+
+	kfree(d);
+}
+
+#define DPAA_POLL_MAX 32
+
+/**
+ * dpaa2_io_irq() - ISR for DPIO interrupts
+ *
+ * @obj: the given DPIO object.
+ *
+ * Return IRQ_HANDLED for success or IRQ_NONE if there
+ * were no pending interrupts.
+ */
+irqreturn_t dpaa2_io_irq(struct dpaa2_io *obj)
+{
+	const struct dpaa2_dq *dq;
+	int max = 0;
+	struct qbman_swp *swp;
+	u32 status;
+
+	swp = obj->swp;
+	status = qbman_swp_interrupt_read_status(swp);
+	if (!status)
+		return IRQ_NONE;
+
+	dq = qbman_swp_dqrr_next(swp);
+	while (dq) {
+		if (qbman_result_is_SCN(dq)) {
+			struct dpaa2_io_notification_ctx *ctx;
+			u64 q64;
+
+			q64 = qbman_result_SCN_ctx(dq);
+			ctx = (void *)(uintptr_t)q64;
+			ctx->cb(ctx);
+		} else {
+			pr_crit("fsl-mc-dpio: Unrecognised/ignored DQRR entry\n");
+		}
+		qbman_swp_dqrr_consume(swp, dq);
+		++max;
+		if (max > DPAA_POLL_MAX)
+			goto done;
+		dq = qbman_swp_dqrr_next(swp);
+	}
+done:
+	qbman_swp_interrupt_clear_status(swp, status);
+	qbman_swp_interrupt_set_inhibit(swp, 0);
+	return IRQ_HANDLED;
+}
+
+/**
+ * dpaa2_io_get_cpu() - get the cpu associated with a given DPIO object
+ *
+ * @d: the given DPIO object.
+ *
+ * Return the cpu associated with the DPIO object
+ */
+int dpaa2_io_get_cpu(struct dpaa2_io *d)
+{
+	return d->dpio_desc.cpu;
+}
+EXPORT_SYMBOL(dpaa2_io_get_cpu);
+
+/**
+ * dpaa2_io_service_register() - Prepare for servicing of FQDAN or CDAN
+ *                               notifications on the given DPIO service.
+ * @d:   the given DPIO service.
+ * @ctx: the notification context.
+ * @dev: the device that requests the register
+ *
+ * The caller should make the MC command to attach a DPAA2 object to
+ * a DPIO after this function completes successfully.  In that way:
+ *    (a) The DPIO service is "ready" to handle a notification arrival
+ *        (which might happen before the "attach" command to MC has
+ *        returned control of execution back to the caller)
+ *    (b) The DPIO service can provide back to the caller the 'dpio_id' and
+ *        'qman64' parameters that it should pass along in the MC command
+ *        in order for the object to be configured to produce the right
+ *        notification fields to the DPIO service.
+ *
+ * Return 0 for success, or -ENODEV for failure.
+ */
+int dpaa2_io_service_register(struct dpaa2_io *d,
+			      struct dpaa2_io_notification_ctx *ctx,
+			      struct device *dev)
+{
+	struct device_link *link;
+	unsigned long irqflags;
+
+	d = service_select_by_cpu(d, ctx->desired_cpu);
+	if (!d)
+		return -ENODEV;
+
+	link = device_link_add(dev, d->dev, DL_FLAG_AUTOREMOVE_CONSUMER);
+	if (!link)
+		return -EINVAL;
+
+	ctx->dpio_id = d->dpio_desc.dpio_id;
+	ctx->qman64 = (u64)(uintptr_t)ctx;
+	ctx->dpio_private = d;
+	spin_lock_irqsave(&d->lock_notifications, irqflags);
+	list_add(&ctx->node, &d->notifications);
+	spin_unlock_irqrestore(&d->lock_notifications, irqflags);
+
+	/* Enable the generation of CDAN notifications */
+	if (ctx->is_cdan)
+		return qbman_swp_CDAN_set_context_enable(d->swp,
+							 (u16)ctx->id,
+							 ctx->qman64);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_service_register);
+
+/**
+ * dpaa2_io_service_deregister - The opposite of 'register'.
+ * @service: the given DPIO service.
+ * @ctx: the notification context.
+ * @dev: the device that requests to be deregistered
+ *
+ * This function should be called only after sending the MC command to
+ * to detach the notification-producing device from the DPIO.
+ */
+void dpaa2_io_service_deregister(struct dpaa2_io *service,
+				 struct dpaa2_io_notification_ctx *ctx,
+				 struct device *dev)
+{
+	struct dpaa2_io *d = ctx->dpio_private;
+	unsigned long irqflags;
+
+	if (ctx->is_cdan)
+		qbman_swp_CDAN_disable(d->swp, (u16)ctx->id);
+
+	spin_lock_irqsave(&d->lock_notifications, irqflags);
+	list_del(&ctx->node);
+	spin_unlock_irqrestore(&d->lock_notifications, irqflags);
+
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_service_deregister);
+
+/**
+ * dpaa2_io_service_rearm() - Rearm the notification for the given DPIO service.
+ * @d: the given DPIO service.
+ * @ctx: the notification context.
+ *
+ * Once a FQDAN/CDAN has been produced, the corresponding FQ/channel is
+ * considered "disarmed". Ie. the user can issue pull dequeue operations on that
+ * traffic source for as long as it likes. Eventually it may wish to "rearm"
+ * that source to allow it to produce another FQDAN/CDAN, that's what this
+ * function achieves.
+ *
+ * Return 0 for success.
+ */
+int dpaa2_io_service_rearm(struct dpaa2_io *d,
+			   struct dpaa2_io_notification_ctx *ctx)
+{
+	unsigned long irqflags;
+	int err;
+
+	d = service_select_by_cpu(d, ctx->desired_cpu);
+	if (!unlikely(d))
+		return -ENODEV;
+
+	spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
+	if (ctx->is_cdan)
+		err = qbman_swp_CDAN_enable(d->swp, (u16)ctx->id);
+	else
+		err = qbman_swp_fq_schedule(d->swp, ctx->id);
+	spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_service_rearm);
+
+/**
+ * dpaa2_io_service_pull_fq() - pull dequeue functions from a fq.
+ * @d: the given DPIO service.
+ * @fqid: the given frame queue id.
+ * @s: the dpaa2_io_store object for the result.
+ *
+ * Return 0 for success, or error code for failure.
+ */
+int dpaa2_io_service_pull_fq(struct dpaa2_io *d, u32 fqid,
+			     struct dpaa2_io_store *s)
+{
+	struct qbman_pull_desc pd;
+	int err;
+
+	qbman_pull_desc_clear(&pd);
+	qbman_pull_desc_set_storage(&pd, s->vaddr, s->paddr, 1);
+	qbman_pull_desc_set_numframes(&pd, (u8)s->max);
+	qbman_pull_desc_set_fq(&pd, fqid);
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+	s->swp = d->swp;
+	err = qbman_swp_pull(d->swp, &pd);
+	if (err)
+		s->swp = NULL;
+
+	return err;
+}
+EXPORT_SYMBOL(dpaa2_io_service_pull_fq);
+
+/**
+ * dpaa2_io_service_pull_channel() - pull dequeue functions from a channel.
+ * @d: the given DPIO service.
+ * @channelid: the given channel id.
+ * @s: the dpaa2_io_store object for the result.
+ *
+ * Return 0 for success, or error code for failure.
+ */
+int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid,
+				  struct dpaa2_io_store *s)
+{
+	struct qbman_pull_desc pd;
+	int err;
+
+	qbman_pull_desc_clear(&pd);
+	qbman_pull_desc_set_storage(&pd, s->vaddr, s->paddr, 1);
+	qbman_pull_desc_set_numframes(&pd, (u8)s->max);
+	qbman_pull_desc_set_channel(&pd, channelid, qbman_pull_type_prio);
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+
+	s->swp = d->swp;
+	err = qbman_swp_pull(d->swp, &pd);
+	if (err)
+		s->swp = NULL;
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_service_pull_channel);
+
+/**
+ * dpaa2_io_service_enqueue_fq() - Enqueue a frame to a frame queue.
+ * @d: the given DPIO service.
+ * @fqid: the given frame queue id.
+ * @fd: the frame descriptor which is enqueued.
+ *
+ * Return 0 for successful enqueue, -EBUSY if the enqueue ring is not ready,
+ * or -ENODEV if there is no dpio service.
+ */
+int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d,
+				u32 fqid,
+				const struct dpaa2_fd *fd)
+{
+	struct qbman_eq_desc ed;
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+
+	qbman_eq_desc_clear(&ed);
+	qbman_eq_desc_set_no_orp(&ed, 0);
+	qbman_eq_desc_set_fq(&ed, fqid);
+
+	return qbman_swp_enqueue(d->swp, &ed, fd);
+}
+EXPORT_SYMBOL(dpaa2_io_service_enqueue_fq);
+
+/**
+ * dpaa2_io_service_enqueue_multiple_fq() - Enqueue multiple frames
+ * to a frame queue using one fqid.
+ * @d: the given DPIO service.
+ * @fqid: the given frame queue id.
+ * @fd: the frame descriptor which is enqueued.
+ * @nb: number of frames to be enqueud
+ *
+ * Return 0 for successful enqueue, -EBUSY if the enqueue ring is not ready,
+ * or -ENODEV if there is no dpio service.
+ */
+int dpaa2_io_service_enqueue_multiple_fq(struct dpaa2_io *d,
+				u32 fqid,
+				const struct dpaa2_fd *fd,
+				int nb)
+{
+	struct qbman_eq_desc ed;
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+
+	qbman_eq_desc_clear(&ed);
+	qbman_eq_desc_set_no_orp(&ed, 0);
+	qbman_eq_desc_set_fq(&ed, fqid);
+
+	return qbman_swp_enqueue_multiple(d->swp, &ed, fd, 0, nb);
+}
+EXPORT_SYMBOL(dpaa2_io_service_enqueue_multiple_fq);
+
+/**
+ * dpaa2_io_service_enqueue_multiple_desc_fq() - Enqueue multiple frames
+ * to different frame queue using a list of fqids.
+ * @d: the given DPIO service.
+ * @fqid: the given list of frame queue ids.
+ * @fd: the frame descriptor which is enqueued.
+ * @nb: number of frames to be enqueud
+ *
+ * Return 0 for successful enqueue, -EBUSY if the enqueue ring is not ready,
+ * or -ENODEV if there is no dpio service.
+ */
+int dpaa2_io_service_enqueue_multiple_desc_fq(struct dpaa2_io *d,
+				u32 *fqid,
+				const struct dpaa2_fd *fd,
+				int nb)
+{
+	struct qbman_eq_desc *ed;
+	int i, ret;
+
+	ed = kcalloc(sizeof(struct qbman_eq_desc), 32, GFP_KERNEL);
+	if (!ed)
+		return -ENOMEM;
+
+	d = service_select(d);
+	if (!d) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	for (i = 0; i < nb; i++) {
+		qbman_eq_desc_clear(&ed[i]);
+		qbman_eq_desc_set_no_orp(&ed[i], 0);
+		qbman_eq_desc_set_fq(&ed[i], fqid[i]);
+	}
+
+	ret = qbman_swp_enqueue_multiple_desc(d->swp, &ed[0], fd, nb);
+out:
+	kfree(ed);
+	return ret;
+}
+EXPORT_SYMBOL(dpaa2_io_service_enqueue_multiple_desc_fq);
+
+/**
+ * dpaa2_io_service_enqueue_qd() - Enqueue a frame to a QD.
+ * @d: the given DPIO service.
+ * @qdid: the given queuing destination id.
+ * @prio: the given queuing priority.
+ * @qdbin: the given queuing destination bin.
+ * @fd: the frame descriptor which is enqueued.
+ *
+ * Return 0 for successful enqueue, or -EBUSY if the enqueue ring is not ready,
+ * or -ENODEV if there is no dpio service.
+ */
+int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d,
+				u32 qdid, u8 prio, u16 qdbin,
+				const struct dpaa2_fd *fd)
+{
+	struct qbman_eq_desc ed;
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+
+	qbman_eq_desc_clear(&ed);
+	qbman_eq_desc_set_no_orp(&ed, 0);
+	qbman_eq_desc_set_qd(&ed, qdid, qdbin, prio);
+
+	return qbman_swp_enqueue(d->swp, &ed, fd);
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_service_enqueue_qd);
+
+/**
+ * dpaa2_io_service_release() - Release buffers to a buffer pool.
+ * @d: the given DPIO object.
+ * @bpid: the buffer pool id.
+ * @buffers: the buffers to be released.
+ * @num_buffers: the number of the buffers to be released.
+ *
+ * Return 0 for success, and negative error code for failure.
+ */
+int dpaa2_io_service_release(struct dpaa2_io *d,
+			     u16 bpid,
+			     const u64 *buffers,
+			     unsigned int num_buffers)
+{
+	struct qbman_release_desc rd;
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+
+	qbman_release_desc_clear(&rd);
+	qbman_release_desc_set_bpid(&rd, bpid);
+
+	return qbman_swp_release(d->swp, &rd, buffers, num_buffers);
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_service_release);
+
+/**
+ * dpaa2_io_service_acquire() - Acquire buffers from a buffer pool.
+ * @d: the given DPIO object.
+ * @bpid: the buffer pool id.
+ * @buffers: the buffer addresses for acquired buffers.
+ * @num_buffers: the expected number of the buffers to acquire.
+ *
+ * Return a negative error code if the command failed, otherwise it returns
+ * the number of buffers acquired, which may be less than the number requested.
+ * Eg. if the buffer pool is empty, this will return zero.
+ */
+int dpaa2_io_service_acquire(struct dpaa2_io *d,
+			     u16 bpid,
+			     u64 *buffers,
+			     unsigned int num_buffers)
+{
+	unsigned long irqflags;
+	int err;
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+
+	spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
+	err = qbman_swp_acquire(d->swp, bpid, buffers, num_buffers);
+	spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_service_acquire);
+
+/*
+ * 'Stores' are reusable memory blocks for holding dequeue results, and to
+ * assist with parsing those results.
+ */
+
+/**
+ * dpaa2_io_store_create() - Create the dma memory storage for dequeue result.
+ * @max_frames: the maximum number of dequeued result for frames, must be <= 32.
+ * @dev:        the device to allow mapping/unmapping the DMAable region.
+ *
+ * The size of the storage is "max_frames*sizeof(struct dpaa2_dq)".
+ * The 'dpaa2_io_store' returned is a DPIO service managed object.
+ *
+ * Return pointer to dpaa2_io_store struct for successfully created storage
+ * memory, or NULL on error.
+ */
+struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames,
+					     struct device *dev)
+{
+	struct dpaa2_io_store *ret;
+	size_t size;
+
+	if (!max_frames || (max_frames > 32))
+		return NULL;
+
+	ret = kmalloc(sizeof(*ret), GFP_KERNEL);
+	if (!ret)
+		return NULL;
+
+	ret->max = max_frames;
+	size = max_frames * sizeof(struct dpaa2_dq) + 64;
+	ret->alloced_addr = kzalloc(size, GFP_KERNEL);
+	if (!ret->alloced_addr) {
+		kfree(ret);
+		return NULL;
+	}
+
+	ret->vaddr = PTR_ALIGN(ret->alloced_addr, 64);
+	ret->paddr = dma_map_single(dev, ret->vaddr,
+				    sizeof(struct dpaa2_dq) * max_frames,
+				    DMA_FROM_DEVICE);
+	if (dma_mapping_error(dev, ret->paddr)) {
+		kfree(ret->alloced_addr);
+		kfree(ret);
+		return NULL;
+	}
+
+	ret->idx = 0;
+	ret->dev = dev;
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_store_create);
+
+/**
+ * dpaa2_io_store_destroy() - Frees the dma memory storage for dequeue
+ *                            result.
+ * @s: the storage memory to be destroyed.
+ */
+void dpaa2_io_store_destroy(struct dpaa2_io_store *s)
+{
+	dma_unmap_single(s->dev, s->paddr, sizeof(struct dpaa2_dq) * s->max,
+			 DMA_FROM_DEVICE);
+	kfree(s->alloced_addr);
+	kfree(s);
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_store_destroy);
+
+/**
+ * dpaa2_io_store_next() - Determine when the next dequeue result is available.
+ * @s: the dpaa2_io_store object.
+ * @is_last: indicate whether this is the last frame in the pull command.
+ *
+ * When an object driver performs dequeues to a dpaa2_io_store, this function
+ * can be used to determine when the next frame result is available. Once
+ * this function returns non-NULL, a subsequent call to it will try to find
+ * the next dequeue result.
+ *
+ * Note that if a pull-dequeue has a NULL result because the target FQ/channel
+ * was empty, then this function will also return NULL (rather than expecting
+ * the caller to always check for this. As such, "is_last" can be used to
+ * differentiate between "end-of-empty-dequeue" and "still-waiting".
+ *
+ * Return dequeue result for a valid dequeue result, or NULL for empty dequeue.
+ */
+struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last)
+{
+	int match;
+	struct dpaa2_dq *ret = &s->vaddr[s->idx];
+
+	match = qbman_result_has_new_result(s->swp, ret);
+	if (!match) {
+		*is_last = 0;
+		return NULL;
+	}
+
+	s->idx++;
+
+	if (dpaa2_dq_is_pull_complete(ret)) {
+		*is_last = 1;
+		s->idx = 0;
+		/*
+		 * If we get an empty dequeue result to terminate a zero-results
+		 * vdqcr, return NULL to the caller rather than expecting him to
+		 * check non-NULL results every time.
+		 */
+		if (!(dpaa2_dq_flags(ret) & DPAA2_DQ_STAT_VALIDFRAME))
+			ret = NULL;
+	} else {
+		prefetch(&s->vaddr[s->idx]);
+		*is_last = 0;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_store_next);
+
+/**
+ * dpaa2_io_query_fq_count() - Get the frame and byte count for a given fq.
+ * @d: the given DPIO object.
+ * @fqid: the id of frame queue to be queried.
+ * @fcnt: the queried frame count.
+ * @bcnt: the queried byte count.
+ *
+ * Knowing the FQ count at run-time can be useful in debugging situations.
+ * The instantaneous frame- and byte-count are hereby returned.
+ *
+ * Return 0 for a successful query, and negative error code if query fails.
+ */
+int dpaa2_io_query_fq_count(struct dpaa2_io *d, u32 fqid,
+			    u32 *fcnt, u32 *bcnt)
+{
+	struct qbman_fq_query_np_rslt state;
+	struct qbman_swp *swp;
+	unsigned long irqflags;
+	int ret;
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+
+	swp = d->swp;
+	spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
+	ret = qbman_fq_query_state(swp, fqid, &state);
+	spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
+	if (ret)
+		return ret;
+	*fcnt = qbman_fq_state_frame_count(&state);
+	*bcnt = qbman_fq_state_byte_count(&state);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_query_fq_count);
+
+/**
+ * dpaa2_io_query_bp_count() - Query the number of buffers currently in a
+ * buffer pool.
+ * @d: the given DPIO object.
+ * @bpid: the index of buffer pool to be queried.
+ * @num: the queried number of buffers in the buffer pool.
+ *
+ * Return 0 for a successful query, and negative error code if query fails.
+ */
+int dpaa2_io_query_bp_count(struct dpaa2_io *d, u16 bpid, u32 *num)
+{
+	struct qbman_bp_query_rslt state;
+	struct qbman_swp *swp;
+	unsigned long irqflags;
+	int ret;
+
+	d = service_select(d);
+	if (!d)
+		return -ENODEV;
+
+	swp = d->swp;
+	spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
+	ret = qbman_bp_query(swp, bpid, &state);
+	spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
+	if (ret)
+		return ret;
+	*num = qbman_bp_info_num_free_bufs(&state);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dpaa2_io_query_bp_count);
diff --git a/drivers/soc/fsl/dpio/dpio.c b/drivers/soc/fsl/dpio/dpio.c
new file mode 100644
index 000000000..af74c597a
--- /dev/null
+++ b/drivers/soc/fsl/dpio/dpio.c
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/fsl/mc.h>
+
+#include "dpio.h"
+#include "dpio-cmd.h"
+
+/*
+ * Data Path I/O Portal API
+ * Contains initialization APIs and runtime control APIs for DPIO
+ */
+
+/**
+ * dpio_open() - Open a control session for the specified object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpio_id:	DPIO unique ID
+ * @token:	Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpio_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpio_open(struct fsl_mc_io *mc_io,
+	      u32 cmd_flags,
+	      int dpio_id,
+	      u16 *token)
+{
+	struct fsl_mc_command cmd = { 0 };
+	struct dpio_cmd_open *dpio_cmd;
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_OPEN,
+					  cmd_flags,
+					  0);
+	dpio_cmd = (struct dpio_cmd_open *)cmd.params;
+	dpio_cmd->dpio_id = cpu_to_le32(dpio_id);
+
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*token = mc_cmd_hdr_read_token(&cmd);
+
+	return 0;
+}
+
+/**
+ * dpio_close() - Close the control session of the object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPIO object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpio_close(struct fsl_mc_io *mc_io,
+	       u32 cmd_flags,
+	       u16 token)
+{
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_CLOSE,
+					  cmd_flags,
+					  token);
+
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpio_enable() - Enable the DPIO, allow I/O portal operations.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPIO object
+ *
+ * Return:	'0' on Success; Error code otherwise
+ */
+int dpio_enable(struct fsl_mc_io *mc_io,
+		u32 cmd_flags,
+		u16 token)
+{
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_ENABLE,
+					  cmd_flags,
+					  token);
+
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpio_disable() - Disable the DPIO, stop any I/O portal operation.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPIO object
+ *
+ * Return:	'0' on Success; Error code otherwise
+ */
+int dpio_disable(struct fsl_mc_io *mc_io,
+		 u32 cmd_flags,
+		 u16 token)
+{
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_DISABLE,
+					  cmd_flags,
+					  token);
+
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpio_get_attributes() - Retrieve DPIO attributes
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPIO object
+ * @attr:	Returned object's attributes
+ *
+ * Return:	'0' on Success; Error code otherwise
+ */
+int dpio_get_attributes(struct fsl_mc_io *mc_io,
+			u32 cmd_flags,
+			u16 token,
+			struct dpio_attr *attr)
+{
+	struct fsl_mc_command cmd = { 0 };
+	struct dpio_rsp_get_attr *dpio_rsp;
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_ATTR,
+					  cmd_flags,
+					  token);
+
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	dpio_rsp = (struct dpio_rsp_get_attr *)cmd.params;
+	attr->id = le32_to_cpu(dpio_rsp->id);
+	attr->qbman_portal_id = le16_to_cpu(dpio_rsp->qbman_portal_id);
+	attr->num_priorities = dpio_rsp->num_priorities;
+	attr->channel_mode = dpio_rsp->channel_mode & DPIO_CHANNEL_MODE_MASK;
+	attr->qbman_portal_ce_offset =
+		le64_to_cpu(dpio_rsp->qbman_portal_ce_addr);
+	attr->qbman_portal_ci_offset =
+		le64_to_cpu(dpio_rsp->qbman_portal_ci_addr);
+	attr->qbman_version = le32_to_cpu(dpio_rsp->qbman_version);
+
+	return 0;
+}
+
+int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
+				  u32 cmd_flags,
+				  u16 token,
+				  u8 sdest)
+{
+	struct fsl_mc_command cmd = { 0 };
+	struct dpio_stashing_dest *dpio_cmd;
+
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_SET_STASHING_DEST,
+					  cmd_flags, token);
+	dpio_cmd = (struct dpio_stashing_dest *)cmd.params;
+	dpio_cmd->sdest = sdest;
+
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpio_get_api_version - Get Data Path I/O API version
+ * @mc_io:	Pointer to MC portal's DPIO object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver:	Major version of DPIO API
+ * @minor_ver:	Minor version of DPIO API
+ *
+ * Return:	'0' on Success; Error code otherwise
+ */
+int dpio_get_api_version(struct fsl_mc_io *mc_io,
+			 u32 cmd_flags,
+			 u16 *major_ver,
+			 u16 *minor_ver)
+{
+	struct fsl_mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_API_VERSION,
+					  cmd_flags, 0);
+
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
+
+	return 0;
+}
+
+/**
+ * dpio_reset() - Reset the DPIO, returns the object to initial state.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPIO object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpio_reset(struct fsl_mc_io *mc_io,
+	       u32 cmd_flags,
+	       u16 token)
+{
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_RESET,
+					  cmd_flags,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
diff --git a/drivers/soc/fsl/dpio/dpio.h b/drivers/soc/fsl/dpio/dpio.h
new file mode 100644
index 000000000..da06f7258
--- /dev/null
+++ b/drivers/soc/fsl/dpio/dpio.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ */
+#ifndef __FSL_DPIO_H
+#define __FSL_DPIO_H
+
+struct fsl_mc_io;
+
+int dpio_open(struct fsl_mc_io	*mc_io,
+	      u32		cmd_flags,
+	      int		dpio_id,
+	      u16		*token);
+
+int dpio_close(struct fsl_mc_io	*mc_io,
+	       u32		cmd_flags,
+	       u16		token);
+
+/**
+ * enum dpio_channel_mode - DPIO notification channel mode
+ * @DPIO_NO_CHANNEL: No support for notification channel
+ * @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
+ *	dedicated channel in the DPIO; user should point the queue's
+ *	destination in the relevant interface to this DPIO
+ */
+enum dpio_channel_mode {
+	DPIO_NO_CHANNEL = 0,
+	DPIO_LOCAL_CHANNEL = 1,
+};
+
+/**
+ * struct dpio_cfg - Structure representing DPIO configuration
+ * @channel_mode: Notification channel mode
+ * @num_priorities: Number of priorities for the notification channel (1-8);
+ *			relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
+ */
+struct dpio_cfg {
+	enum dpio_channel_mode	channel_mode;
+	u8		num_priorities;
+};
+
+int dpio_enable(struct fsl_mc_io	*mc_io,
+		u32		cmd_flags,
+		u16		token);
+
+int dpio_disable(struct fsl_mc_io	*mc_io,
+		 u32		cmd_flags,
+		 u16		token);
+
+/**
+ * struct dpio_attr - Structure representing DPIO attributes
+ * @id: DPIO object ID
+ * @qbman_portal_ce_offset: offset of the software portal cache-enabled area
+ * @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
+ * @qbman_portal_id: Software portal ID
+ * @channel_mode: Notification channel mode
+ * @num_priorities: Number of priorities for the notification channel (1-8);
+ *			relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
+ * @qbman_version: QBMAN version
+ */
+struct dpio_attr {
+	int			id;
+	u64		qbman_portal_ce_offset;
+	u64		qbman_portal_ci_offset;
+	u16		qbman_portal_id;
+	enum dpio_channel_mode	channel_mode;
+	u8			num_priorities;
+	u32		qbman_version;
+};
+
+int dpio_get_attributes(struct fsl_mc_io	*mc_io,
+			u32		cmd_flags,
+			u16		token,
+			struct dpio_attr	*attr);
+
+int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
+				  u32 cmd_flags,
+				  u16 token,
+				  u8 dest);
+
+int dpio_get_api_version(struct fsl_mc_io *mc_io,
+			 u32 cmd_flags,
+			 u16 *major_ver,
+			 u16 *minor_ver);
+
+int dpio_reset(struct fsl_mc_io	*mc_io,
+	       u32 cmd_flags,
+	       u16 token);
+
+#endif /* __FSL_DPIO_H */
diff --git a/drivers/soc/fsl/dpio/qbman-portal.c b/drivers/soc/fsl/dpio/qbman-portal.c
new file mode 100644
index 000000000..3d69f56d9
--- /dev/null
+++ b/drivers/soc/fsl/dpio/qbman-portal.c
@@ -0,0 +1,1787 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
+ * Copyright 2016-2019 NXP
+ *
+ */
+
+#include <asm/cacheflush.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <soc/fsl/dpaa2-global.h>
+
+#include "qbman-portal.h"
+
+/* All QBMan command and result structures use this "valid bit" encoding */
+#define QB_VALID_BIT ((u32)0x80)
+
+/* QBMan portal management command codes */
+#define QBMAN_MC_ACQUIRE       0x30
+#define QBMAN_WQCHAN_CONFIGURE 0x46
+
+/* CINH register offsets */
+#define QBMAN_CINH_SWP_EQCR_PI      0x800
+#define QBMAN_CINH_SWP_EQCR_CI	    0x840
+#define QBMAN_CINH_SWP_EQAR    0x8c0
+#define QBMAN_CINH_SWP_CR_RT        0x900
+#define QBMAN_CINH_SWP_VDQCR_RT     0x940
+#define QBMAN_CINH_SWP_EQCR_AM_RT   0x980
+#define QBMAN_CINH_SWP_RCR_AM_RT    0x9c0
+#define QBMAN_CINH_SWP_DQPI    0xa00
+#define QBMAN_CINH_SWP_DCAP    0xac0
+#define QBMAN_CINH_SWP_SDQCR   0xb00
+#define QBMAN_CINH_SWP_EQCR_AM_RT2  0xb40
+#define QBMAN_CINH_SWP_RCR_PI       0xc00
+#define QBMAN_CINH_SWP_RAR     0xcc0
+#define QBMAN_CINH_SWP_ISR     0xe00
+#define QBMAN_CINH_SWP_IER     0xe40
+#define QBMAN_CINH_SWP_ISDR    0xe80
+#define QBMAN_CINH_SWP_IIR     0xec0
+
+/* CENA register offsets */
+#define QBMAN_CENA_SWP_EQCR(n) (0x000 + ((u32)(n) << 6))
+#define QBMAN_CENA_SWP_DQRR(n) (0x200 + ((u32)(n) << 6))
+#define QBMAN_CENA_SWP_RCR(n)  (0x400 + ((u32)(n) << 6))
+#define QBMAN_CENA_SWP_CR      0x600
+#define QBMAN_CENA_SWP_RR(vb)  (0x700 + ((u32)(vb) >> 1))
+#define QBMAN_CENA_SWP_VDQCR   0x780
+#define QBMAN_CENA_SWP_EQCR_CI 0x840
+#define QBMAN_CENA_SWP_EQCR_CI_MEMBACK 0x1840
+
+/* CENA register offsets in memory-backed mode */
+#define QBMAN_CENA_SWP_DQRR_MEM(n)  (0x800 + ((u32)(n) << 6))
+#define QBMAN_CENA_SWP_RCR_MEM(n)   (0x1400 + ((u32)(n) << 6))
+#define QBMAN_CENA_SWP_CR_MEM       0x1600
+#define QBMAN_CENA_SWP_RR_MEM       0x1680
+#define QBMAN_CENA_SWP_VDQCR_MEM    0x1780
+
+/* Reverse mapping of QBMAN_CENA_SWP_DQRR() */
+#define QBMAN_IDX_FROM_DQRR(p) (((unsigned long)(p) & 0x1ff) >> 6)
+
+/* Define token used to determine if response written to memory is valid */
+#define QMAN_DQ_TOKEN_VALID 1
+
+/* SDQCR attribute codes */
+#define QB_SDQCR_FC_SHIFT   29
+#define QB_SDQCR_FC_MASK    0x1
+#define QB_SDQCR_DCT_SHIFT  24
+#define QB_SDQCR_DCT_MASK   0x3
+#define QB_SDQCR_TOK_SHIFT  16
+#define QB_SDQCR_TOK_MASK   0xff
+#define QB_SDQCR_SRC_SHIFT  0
+#define QB_SDQCR_SRC_MASK   0xffff
+
+/* opaque token for static dequeues */
+#define QMAN_SDQCR_TOKEN    0xbb
+
+#define QBMAN_EQCR_DCA_IDXMASK          0x0f
+#define QBMAN_ENQUEUE_FLAG_DCA          (1ULL << 31)
+
+#define EQ_DESC_SIZE_WITHOUT_FD 29
+#define EQ_DESC_SIZE_FD_START 32
+
+enum qbman_sdqcr_dct {
+	qbman_sdqcr_dct_null = 0,
+	qbman_sdqcr_dct_prio_ics,
+	qbman_sdqcr_dct_active_ics,
+	qbman_sdqcr_dct_active
+};
+
+enum qbman_sdqcr_fc {
+	qbman_sdqcr_fc_one = 0,
+	qbman_sdqcr_fc_up_to_3 = 1
+};
+
+/* Internal Function declaration */
+static int qbman_swp_enqueue_direct(struct qbman_swp *s,
+				    const struct qbman_eq_desc *d,
+				    const struct dpaa2_fd *fd);
+static int qbman_swp_enqueue_mem_back(struct qbman_swp *s,
+				      const struct qbman_eq_desc *d,
+				      const struct dpaa2_fd *fd);
+static int qbman_swp_enqueue_multiple_direct(struct qbman_swp *s,
+					     const struct qbman_eq_desc *d,
+					     const struct dpaa2_fd *fd,
+					     uint32_t *flags,
+					     int num_frames);
+static int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
+					       const struct qbman_eq_desc *d,
+					       const struct dpaa2_fd *fd,
+					       uint32_t *flags,
+					       int num_frames);
+static int
+qbman_swp_enqueue_multiple_desc_direct(struct qbman_swp *s,
+				       const struct qbman_eq_desc *d,
+				       const struct dpaa2_fd *fd,
+				       int num_frames);
+static
+int qbman_swp_enqueue_multiple_desc_mem_back(struct qbman_swp *s,
+					     const struct qbman_eq_desc *d,
+					     const struct dpaa2_fd *fd,
+					     int num_frames);
+static int qbman_swp_pull_direct(struct qbman_swp *s,
+				 struct qbman_pull_desc *d);
+static int qbman_swp_pull_mem_back(struct qbman_swp *s,
+				   struct qbman_pull_desc *d);
+
+const struct dpaa2_dq *qbman_swp_dqrr_next_direct(struct qbman_swp *s);
+const struct dpaa2_dq *qbman_swp_dqrr_next_mem_back(struct qbman_swp *s);
+
+static int qbman_swp_release_direct(struct qbman_swp *s,
+				    const struct qbman_release_desc *d,
+				    const u64 *buffers,
+				    unsigned int num_buffers);
+static int qbman_swp_release_mem_back(struct qbman_swp *s,
+				      const struct qbman_release_desc *d,
+				      const u64 *buffers,
+				      unsigned int num_buffers);
+
+/* Function pointers */
+int (*qbman_swp_enqueue_ptr)(struct qbman_swp *s,
+			     const struct qbman_eq_desc *d,
+			     const struct dpaa2_fd *fd)
+	= qbman_swp_enqueue_direct;
+
+int (*qbman_swp_enqueue_multiple_ptr)(struct qbman_swp *s,
+				      const struct qbman_eq_desc *d,
+				      const struct dpaa2_fd *fd,
+				      uint32_t *flags,
+					     int num_frames)
+	= qbman_swp_enqueue_multiple_direct;
+
+int
+(*qbman_swp_enqueue_multiple_desc_ptr)(struct qbman_swp *s,
+				       const struct qbman_eq_desc *d,
+				       const struct dpaa2_fd *fd,
+				       int num_frames)
+	= qbman_swp_enqueue_multiple_desc_direct;
+
+int (*qbman_swp_pull_ptr)(struct qbman_swp *s, struct qbman_pull_desc *d)
+			= qbman_swp_pull_direct;
+
+const struct dpaa2_dq *(*qbman_swp_dqrr_next_ptr)(struct qbman_swp *s)
+			= qbman_swp_dqrr_next_direct;
+
+int (*qbman_swp_release_ptr)(struct qbman_swp *s,
+			     const struct qbman_release_desc *d,
+			     const u64 *buffers,
+			     unsigned int num_buffers)
+			= qbman_swp_release_direct;
+
+/* Portal Access */
+
+static inline u32 qbman_read_register(struct qbman_swp *p, u32 offset)
+{
+	return readl_relaxed(p->addr_cinh + offset);
+}
+
+static inline void qbman_write_register(struct qbman_swp *p, u32 offset,
+					u32 value)
+{
+	writel_relaxed(value, p->addr_cinh + offset);
+}
+
+static inline void *qbman_get_cmd(struct qbman_swp *p, u32 offset)
+{
+	return p->addr_cena + offset;
+}
+
+#define QBMAN_CINH_SWP_CFG   0xd00
+
+#define SWP_CFG_DQRR_MF_SHIFT 20
+#define SWP_CFG_EST_SHIFT     16
+#define SWP_CFG_CPBS_SHIFT    15
+#define SWP_CFG_WN_SHIFT      14
+#define SWP_CFG_RPM_SHIFT     12
+#define SWP_CFG_DCM_SHIFT     10
+#define SWP_CFG_EPM_SHIFT     8
+#define SWP_CFG_VPM_SHIFT     7
+#define SWP_CFG_CPM_SHIFT     6
+#define SWP_CFG_SD_SHIFT      5
+#define SWP_CFG_SP_SHIFT      4
+#define SWP_CFG_SE_SHIFT      3
+#define SWP_CFG_DP_SHIFT      2
+#define SWP_CFG_DE_SHIFT      1
+#define SWP_CFG_EP_SHIFT      0
+
+static inline u32 qbman_set_swp_cfg(u8 max_fill, u8 wn,	u8 est, u8 rpm, u8 dcm,
+				    u8 epm, int sd, int sp, int se,
+				    int dp, int de, int ep)
+{
+	return (max_fill << SWP_CFG_DQRR_MF_SHIFT |
+		est << SWP_CFG_EST_SHIFT |
+		wn << SWP_CFG_WN_SHIFT |
+		rpm << SWP_CFG_RPM_SHIFT |
+		dcm << SWP_CFG_DCM_SHIFT |
+		epm << SWP_CFG_EPM_SHIFT |
+		sd << SWP_CFG_SD_SHIFT |
+		sp << SWP_CFG_SP_SHIFT |
+		se << SWP_CFG_SE_SHIFT |
+		dp << SWP_CFG_DP_SHIFT |
+		de << SWP_CFG_DE_SHIFT |
+		ep << SWP_CFG_EP_SHIFT);
+}
+
+#define QMAN_RT_MODE	   0x00000100
+
+static inline u8 qm_cyc_diff(u8 ringsize, u8 first, u8 last)
+{
+	/* 'first' is included, 'last' is excluded */
+	if (first <= last)
+		return last - first;
+	else
+		return (2 * ringsize) - (first - last);
+}
+
+/**
+ * qbman_swp_init() - Create a functional object representing the given
+ *                    QBMan portal descriptor.
+ * @d: the given qbman swp descriptor
+ *
+ * Return qbman_swp portal for success, NULL if the object cannot
+ * be created.
+ */
+struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
+{
+	struct qbman_swp *p = kzalloc(sizeof(*p), GFP_KERNEL);
+	u32 reg;
+	u32 mask_size;
+	u32 eqcr_pi;
+
+	if (!p)
+		return NULL;
+
+	spin_lock_init(&p->access_spinlock);
+
+	p->desc = d;
+	p->mc.valid_bit = QB_VALID_BIT;
+	p->sdq = 0;
+	p->sdq |= qbman_sdqcr_dct_prio_ics << QB_SDQCR_DCT_SHIFT;
+	p->sdq |= qbman_sdqcr_fc_up_to_3 << QB_SDQCR_FC_SHIFT;
+	p->sdq |= QMAN_SDQCR_TOKEN << QB_SDQCR_TOK_SHIFT;
+	if ((p->desc->qman_version & QMAN_REV_MASK) >= QMAN_REV_5000)
+		p->mr.valid_bit = QB_VALID_BIT;
+
+	atomic_set(&p->vdq.available, 1);
+	p->vdq.valid_bit = QB_VALID_BIT;
+	p->dqrr.next_idx = 0;
+	p->dqrr.valid_bit = QB_VALID_BIT;
+
+	if ((p->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_4100) {
+		p->dqrr.dqrr_size = 4;
+		p->dqrr.reset_bug = 1;
+	} else {
+		p->dqrr.dqrr_size = 8;
+		p->dqrr.reset_bug = 0;
+	}
+
+	p->addr_cena = d->cena_bar;
+	p->addr_cinh = d->cinh_bar;
+
+	if ((p->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000) {
+
+		reg = qbman_set_swp_cfg(p->dqrr.dqrr_size,
+			1, /* Writes Non-cacheable */
+			0, /* EQCR_CI stashing threshold */
+			3, /* RPM: RCR in array mode */
+			2, /* DCM: Discrete consumption ack */
+			2, /* EPM: EQCR in ring mode */
+			1, /* mem stashing drop enable enable */
+			1, /* mem stashing priority enable */
+			1, /* mem stashing enable */
+			1, /* dequeue stashing priority enable */
+			0, /* dequeue stashing enable enable */
+			0); /* EQCR_CI stashing priority enable */
+	} else {
+		memset(p->addr_cena, 0, 64 * 1024);
+		reg = qbman_set_swp_cfg(p->dqrr.dqrr_size,
+			1, /* Writes Non-cacheable */
+			1, /* EQCR_CI stashing threshold */
+			3, /* RPM: RCR in array mode */
+			2, /* DCM: Discrete consumption ack */
+			0, /* EPM: EQCR in ring mode */
+			1, /* mem stashing drop enable */
+			1, /* mem stashing priority enable */
+			1, /* mem stashing enable */
+			1, /* dequeue stashing priority enable */
+			0, /* dequeue stashing enable */
+			0); /* EQCR_CI stashing priority enable */
+		reg |= 1 << SWP_CFG_CPBS_SHIFT | /* memory-backed mode */
+		       1 << SWP_CFG_VPM_SHIFT |  /* VDQCR read triggered mode */
+		       1 << SWP_CFG_CPM_SHIFT;   /* CR read triggered mode */
+	}
+
+	qbman_write_register(p, QBMAN_CINH_SWP_CFG, reg);
+	reg = qbman_read_register(p, QBMAN_CINH_SWP_CFG);
+	if (!reg) {
+		pr_err("qbman: the portal is not enabled!\n");
+		kfree(p);
+		return NULL;
+	}
+
+	if ((p->desc->qman_version & QMAN_REV_MASK) >= QMAN_REV_5000) {
+		qbman_write_register(p, QBMAN_CINH_SWP_EQCR_PI, QMAN_RT_MODE);
+		qbman_write_register(p, QBMAN_CINH_SWP_RCR_PI, QMAN_RT_MODE);
+	}
+	/*
+	 * SDQCR needs to be initialized to 0 when no channels are
+	 * being dequeued from or else the QMan HW will indicate an
+	 * error.  The values that were calculated above will be
+	 * applied when dequeues from a specific channel are enabled.
+	 */
+	qbman_write_register(p, QBMAN_CINH_SWP_SDQCR, 0);
+
+	p->eqcr.pi_ring_size = 8;
+	if ((p->desc->qman_version & QMAN_REV_MASK) >= QMAN_REV_5000) {
+		p->eqcr.pi_ring_size = 32;
+		qbman_swp_enqueue_ptr =
+			qbman_swp_enqueue_mem_back;
+		qbman_swp_enqueue_multiple_ptr =
+			qbman_swp_enqueue_multiple_mem_back;
+		qbman_swp_enqueue_multiple_desc_ptr =
+			qbman_swp_enqueue_multiple_desc_mem_back;
+		qbman_swp_pull_ptr = qbman_swp_pull_mem_back;
+		qbman_swp_dqrr_next_ptr = qbman_swp_dqrr_next_mem_back;
+		qbman_swp_release_ptr = qbman_swp_release_mem_back;
+	}
+
+	for (mask_size = p->eqcr.pi_ring_size; mask_size > 0; mask_size >>= 1)
+		p->eqcr.pi_ci_mask = (p->eqcr.pi_ci_mask << 1) + 1;
+	eqcr_pi = qbman_read_register(p, QBMAN_CINH_SWP_EQCR_PI);
+	p->eqcr.pi = eqcr_pi & p->eqcr.pi_ci_mask;
+	p->eqcr.pi_vb = eqcr_pi & QB_VALID_BIT;
+	p->eqcr.ci = qbman_read_register(p, QBMAN_CINH_SWP_EQCR_CI)
+			& p->eqcr.pi_ci_mask;
+	p->eqcr.available = p->eqcr.pi_ring_size;
+
+	return p;
+}
+
+/**
+ * qbman_swp_finish() - Create and destroy a functional object representing
+ *                      the given QBMan portal descriptor.
+ * @p: the qbman_swp object to be destroyed
+ */
+void qbman_swp_finish(struct qbman_swp *p)
+{
+	kfree(p);
+}
+
+/**
+ * qbman_swp_interrupt_read_status()
+ * @p: the given software portal
+ *
+ * Return the value in the SWP_ISR register.
+ */
+u32 qbman_swp_interrupt_read_status(struct qbman_swp *p)
+{
+	return qbman_read_register(p, QBMAN_CINH_SWP_ISR);
+}
+
+/**
+ * qbman_swp_interrupt_clear_status()
+ * @p: the given software portal
+ * @mask: The mask to clear in SWP_ISR register
+ */
+void qbman_swp_interrupt_clear_status(struct qbman_swp *p, u32 mask)
+{
+	qbman_write_register(p, QBMAN_CINH_SWP_ISR, mask);
+}
+
+/**
+ * qbman_swp_interrupt_get_trigger() - read interrupt enable register
+ * @p: the given software portal
+ *
+ * Return the value in the SWP_IER register.
+ */
+u32 qbman_swp_interrupt_get_trigger(struct qbman_swp *p)
+{
+	return qbman_read_register(p, QBMAN_CINH_SWP_IER);
+}
+
+/**
+ * qbman_swp_interrupt_set_trigger() - enable interrupts for a swp
+ * @p: the given software portal
+ * @mask: The mask of bits to enable in SWP_IER
+ */
+void qbman_swp_interrupt_set_trigger(struct qbman_swp *p, u32 mask)
+{
+	qbman_write_register(p, QBMAN_CINH_SWP_IER, mask);
+}
+
+/**
+ * qbman_swp_interrupt_get_inhibit() - read interrupt mask register
+ * @p: the given software portal object
+ *
+ * Return the value in the SWP_IIR register.
+ */
+int qbman_swp_interrupt_get_inhibit(struct qbman_swp *p)
+{
+	return qbman_read_register(p, QBMAN_CINH_SWP_IIR);
+}
+
+/**
+ * qbman_swp_interrupt_set_inhibit() - write interrupt mask register
+ * @p: the given software portal object
+ * @mask: The mask to set in SWP_IIR register
+ */
+void qbman_swp_interrupt_set_inhibit(struct qbman_swp *p, int inhibit)
+{
+	qbman_write_register(p, QBMAN_CINH_SWP_IIR, inhibit ? 0xffffffff : 0);
+}
+
+/*
+ * Different management commands all use this common base layer of code to issue
+ * commands and poll for results.
+ */
+
+/*
+ * Returns a pointer to where the caller should fill in their management command
+ * (caller should ignore the verb byte)
+ */
+void *qbman_swp_mc_start(struct qbman_swp *p)
+{
+	if ((p->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000)
+		return qbman_get_cmd(p, QBMAN_CENA_SWP_CR);
+	else
+		return qbman_get_cmd(p, QBMAN_CENA_SWP_CR_MEM);
+}
+
+/*
+ * Commits merges in the caller-supplied command verb (which should not include
+ * the valid-bit) and submits the command to hardware
+ */
+void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb)
+{
+	u8 *v = cmd;
+
+	if ((p->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000) {
+		dma_wmb();
+		*v = cmd_verb | p->mc.valid_bit;
+	} else {
+		*v = cmd_verb | p->mc.valid_bit;
+		dma_wmb();
+		qbman_write_register(p, QBMAN_CINH_SWP_CR_RT, QMAN_RT_MODE);
+	}
+}
+
+/*
+ * Checks for a completed response (returns non-NULL if only if the response
+ * is complete).
+ */
+void *qbman_swp_mc_result(struct qbman_swp *p)
+{
+	u32 *ret, verb;
+
+	if ((p->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000) {
+		ret = qbman_get_cmd(p, QBMAN_CENA_SWP_RR(p->mc.valid_bit));
+		/* Remove the valid-bit - command completed if the rest
+		 * is non-zero.
+		 */
+		verb = ret[0] & ~QB_VALID_BIT;
+		if (!verb)
+			return NULL;
+		p->mc.valid_bit ^= QB_VALID_BIT;
+	} else {
+		ret = qbman_get_cmd(p, QBMAN_CENA_SWP_RR_MEM);
+		/* Command completed if the valid bit is toggled */
+		if (p->mr.valid_bit != (ret[0] & QB_VALID_BIT))
+			return NULL;
+		/* Command completed if the rest is non-zero */
+		verb = ret[0] & ~QB_VALID_BIT;
+		if (!verb)
+			return NULL;
+		p->mr.valid_bit ^= QB_VALID_BIT;
+	}
+
+	return ret;
+}
+
+#define QB_ENQUEUE_CMD_OPTIONS_SHIFT    0
+enum qb_enqueue_commands {
+	enqueue_empty = 0,
+	enqueue_response_always = 1,
+	enqueue_rejects_to_fq = 2
+};
+
+#define QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT      2
+#define QB_ENQUEUE_CMD_IRQ_ON_DISPATCH_SHIFT 3
+#define QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT     4
+#define QB_ENQUEUE_CMD_DCA_EN_SHIFT          7
+
+/**
+ * qbman_eq_desc_clear() - Clear the contents of a descriptor to
+ *                         default/starting state.
+ */
+void qbman_eq_desc_clear(struct qbman_eq_desc *d)
+{
+	memset(d, 0, sizeof(*d));
+}
+
+/**
+ * qbman_eq_desc_set_no_orp() - Set enqueue descriptor without orp
+ * @d:                the enqueue descriptor.
+ * @response_success: 1 = enqueue with response always; 0 = enqueue with
+ *                    rejections returned on a FQ.
+ */
+void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success)
+{
+	d->verb &= ~(1 << QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT);
+	if (respond_success)
+		d->verb |= enqueue_response_always;
+	else
+		d->verb |= enqueue_rejects_to_fq;
+}
+
+/*
+ * Exactly one of the following descriptor "targets" should be set. (Calling any
+ * one of these will replace the effect of any prior call to one of these.)
+ *   -enqueue to a frame queue
+ *   -enqueue to a queuing destination
+ */
+
+/**
+ * qbman_eq_desc_set_fq() - set the FQ for the enqueue command
+ * @d:    the enqueue descriptor
+ * @fqid: the id of the frame queue to be enqueued
+ */
+void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid)
+{
+	d->verb &= ~(1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT);
+	d->tgtid = cpu_to_le32(fqid);
+}
+
+/**
+ * qbman_eq_desc_set_qd() - Set Queuing Destination for the enqueue command
+ * @d:       the enqueue descriptor
+ * @qdid:    the id of the queuing destination to be enqueued
+ * @qd_bin:  the queuing destination bin
+ * @qd_prio: the queuing destination priority
+ */
+void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid,
+			  u32 qd_bin, u32 qd_prio)
+{
+	d->verb |= 1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT;
+	d->tgtid = cpu_to_le32(qdid);
+	d->qdbin = cpu_to_le16(qd_bin);
+	d->qpri = qd_prio;
+}
+
+#define EQAR_IDX(eqar)     ((eqar) & 0x7)
+#define EQAR_VB(eqar)      ((eqar) & 0x80)
+#define EQAR_SUCCESS(eqar) ((eqar) & 0x100)
+
+#define QB_RT_BIT ((u32)0x100)
+/**
+ * qbman_swp_enqueue_direct() - Issue an enqueue command
+ * @s:  the software portal used for enqueue
+ * @d:  the enqueue descriptor
+ * @fd: the frame descriptor to be enqueued
+ *
+ * Please note that 'fd' should only be NULL if the "action" of the
+ * descriptor is "orp_hole" or "orp_nesn".
+ *
+ * Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
+ */
+static
+int qbman_swp_enqueue_direct(struct qbman_swp *s,
+			     const struct qbman_eq_desc *d,
+			     const struct dpaa2_fd *fd)
+{
+	int flags = 0;
+	int ret = qbman_swp_enqueue_multiple_direct(s, d, fd, &flags, 1);
+
+	if (ret >= 0)
+		ret = 0;
+	else
+		ret = -EBUSY;
+	return  ret;
+}
+
+/**
+ * qbman_swp_enqueue_mem_back() - Issue an enqueue command
+ * @s:  the software portal used for enqueue
+ * @d:  the enqueue descriptor
+ * @fd: the frame descriptor to be enqueued
+ *
+ * Please note that 'fd' should only be NULL if the "action" of the
+ * descriptor is "orp_hole" or "orp_nesn".
+ *
+ * Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
+ */
+static
+int qbman_swp_enqueue_mem_back(struct qbman_swp *s,
+			       const struct qbman_eq_desc *d,
+			       const struct dpaa2_fd *fd)
+{
+	int flags = 0;
+	int ret = qbman_swp_enqueue_multiple_mem_back(s, d, fd, &flags, 1);
+
+	if (ret >= 0)
+		ret = 0;
+	else
+		ret = -EBUSY;
+	return  ret;
+}
+
+/**
+ * qbman_swp_enqueue_multiple_direct() - Issue a multi enqueue command
+ * using one enqueue descriptor
+ * @s:  the software portal used for enqueue
+ * @d:  the enqueue descriptor
+ * @fd: table pointer of frame descriptor table to be enqueued
+ * @flags: table pointer of QBMAN_ENQUEUE_FLAG_DCA flags, not used if NULL
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static
+int qbman_swp_enqueue_multiple_direct(struct qbman_swp *s,
+				      const struct qbman_eq_desc *d,
+				      const struct dpaa2_fd *fd,
+				      uint32_t *flags,
+				      int num_frames)
+{
+	uint32_t *p = NULL;
+	const uint32_t *cl = (uint32_t *)d;
+	uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+	int i, num_enqueued = 0;
+
+	spin_lock(&s->access_spinlock);
+	half_mask = (s->eqcr.pi_ci_mask>>1);
+	full_mask = s->eqcr.pi_ci_mask;
+
+	if (!s->eqcr.available) {
+		eqcr_ci = s->eqcr.ci;
+		p = s->addr_cena + QBMAN_CENA_SWP_EQCR_CI;
+		s->eqcr.ci = qbman_read_register(s, QBMAN_CINH_SWP_EQCR_CI);
+		s->eqcr.ci &= full_mask;
+
+		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+					eqcr_ci, s->eqcr.ci);
+		if (!s->eqcr.available) {
+			spin_unlock(&s->access_spinlock);
+			return 0;
+		}
+	}
+
+	eqcr_pi = s->eqcr.pi;
+	num_enqueued = (s->eqcr.available < num_frames) ?
+			s->eqcr.available : num_frames;
+	s->eqcr.available -= num_enqueued;
+	/* Fill in the EQCR ring */
+	for (i = 0; i < num_enqueued; i++) {
+		p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		/* Skip copying the verb */
+		memcpy(&p[1], &cl[1], EQ_DESC_SIZE_WITHOUT_FD - 1);
+		memcpy(&p[EQ_DESC_SIZE_FD_START/sizeof(uint32_t)],
+		       &fd[i], sizeof(*fd));
+		eqcr_pi++;
+	}
+
+	dma_wmb();
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++) {
+		p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		p[0] = cl[0] | s->eqcr.pi_vb;
+		if (flags && (flags[i] & QBMAN_ENQUEUE_FLAG_DCA)) {
+			struct qbman_eq_desc *d = (struct qbman_eq_desc *)p;
+
+			d->dca = (1 << QB_ENQUEUE_CMD_DCA_EN_SHIFT) |
+				((flags[i]) & QBMAN_EQCR_DCA_IDXMASK);
+		}
+		eqcr_pi++;
+		if (!(eqcr_pi & half_mask))
+			s->eqcr.pi_vb ^= QB_VALID_BIT;
+	}
+
+	/* Flush all the cacheline without load/store in between */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++)
+		eqcr_pi++;
+	s->eqcr.pi = eqcr_pi & full_mask;
+	spin_unlock(&s->access_spinlock);
+
+	return num_enqueued;
+}
+
+/**
+ * qbman_swp_enqueue_multiple_mem_back() - Issue a multi enqueue command
+ * using one enqueue descriptor
+ * @s:  the software portal used for enqueue
+ * @d:  the enqueue descriptor
+ * @fd: table pointer of frame descriptor table to be enqueued
+ * @flags: table pointer of QBMAN_ENQUEUE_FLAG_DCA flags, not used if NULL
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static
+int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
+					const struct qbman_eq_desc *d,
+					const struct dpaa2_fd *fd,
+					uint32_t *flags,
+					int num_frames)
+{
+	uint32_t *p = NULL;
+	const uint32_t *cl = (uint32_t *)(d);
+	uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+	int i, num_enqueued = 0;
+	unsigned long irq_flags;
+
+	spin_lock_irqsave(&s->access_spinlock, irq_flags);
+
+	half_mask = (s->eqcr.pi_ci_mask>>1);
+	full_mask = s->eqcr.pi_ci_mask;
+	if (!s->eqcr.available) {
+		eqcr_ci = s->eqcr.ci;
+		p = s->addr_cena + QBMAN_CENA_SWP_EQCR_CI_MEMBACK;
+		s->eqcr.ci = *p & full_mask;
+		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+					eqcr_ci, s->eqcr.ci);
+		if (!s->eqcr.available) {
+			spin_unlock_irqrestore(&s->access_spinlock, irq_flags);
+			return 0;
+		}
+	}
+
+	eqcr_pi = s->eqcr.pi;
+	num_enqueued = (s->eqcr.available < num_frames) ?
+			s->eqcr.available : num_frames;
+	s->eqcr.available -= num_enqueued;
+	/* Fill in the EQCR ring */
+	for (i = 0; i < num_enqueued; i++) {
+		p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		/* Skip copying the verb */
+		memcpy(&p[1], &cl[1], EQ_DESC_SIZE_WITHOUT_FD - 1);
+		memcpy(&p[EQ_DESC_SIZE_FD_START/sizeof(uint32_t)],
+		       &fd[i], sizeof(*fd));
+		eqcr_pi++;
+	}
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++) {
+		p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		p[0] = cl[0] | s->eqcr.pi_vb;
+		if (flags && (flags[i] & QBMAN_ENQUEUE_FLAG_DCA)) {
+			struct qbman_eq_desc *d = (struct qbman_eq_desc *)p;
+
+			d->dca = (1 << QB_ENQUEUE_CMD_DCA_EN_SHIFT) |
+				((flags[i]) & QBMAN_EQCR_DCA_IDXMASK);
+		}
+		eqcr_pi++;
+		if (!(eqcr_pi & half_mask))
+			s->eqcr.pi_vb ^= QB_VALID_BIT;
+	}
+	s->eqcr.pi = eqcr_pi & full_mask;
+
+	dma_wmb();
+	qbman_write_register(s, QBMAN_CINH_SWP_EQCR_PI,
+				(QB_RT_BIT)|(s->eqcr.pi)|s->eqcr.pi_vb);
+	spin_unlock_irqrestore(&s->access_spinlock, irq_flags);
+
+	return num_enqueued;
+}
+
+/**
+ * qbman_swp_enqueue_multiple_desc_direct() - Issue a multi enqueue command
+ * using multiple enqueue descriptor
+ * @s:  the software portal used for enqueue
+ * @d:  table of minimal enqueue descriptor
+ * @fd: table pointer of frame descriptor table to be enqueued
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static
+int qbman_swp_enqueue_multiple_desc_direct(struct qbman_swp *s,
+					   const struct qbman_eq_desc *d,
+					   const struct dpaa2_fd *fd,
+					   int num_frames)
+{
+	uint32_t *p;
+	const uint32_t *cl;
+	uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+	int i, num_enqueued = 0;
+
+	half_mask = (s->eqcr.pi_ci_mask>>1);
+	full_mask = s->eqcr.pi_ci_mask;
+	if (!s->eqcr.available) {
+		eqcr_ci = s->eqcr.ci;
+		p = s->addr_cena + QBMAN_CENA_SWP_EQCR_CI;
+		s->eqcr.ci = qbman_read_register(s, QBMAN_CINH_SWP_EQCR_CI);
+		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+					eqcr_ci, s->eqcr.ci);
+		if (!s->eqcr.available)
+			return 0;
+	}
+
+	eqcr_pi = s->eqcr.pi;
+	num_enqueued = (s->eqcr.available < num_frames) ?
+			s->eqcr.available : num_frames;
+	s->eqcr.available -= num_enqueued;
+	/* Fill in the EQCR ring */
+	for (i = 0; i < num_enqueued; i++) {
+		p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		cl = (uint32_t *)(&d[i]);
+		/* Skip copying the verb */
+		memcpy(&p[1], &cl[1], EQ_DESC_SIZE_WITHOUT_FD - 1);
+		memcpy(&p[EQ_DESC_SIZE_FD_START/sizeof(uint32_t)],
+		       &fd[i], sizeof(*fd));
+		eqcr_pi++;
+	}
+
+	dma_wmb();
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++) {
+		p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		cl = (uint32_t *)(&d[i]);
+		p[0] = cl[0] | s->eqcr.pi_vb;
+		eqcr_pi++;
+		if (!(eqcr_pi & half_mask))
+			s->eqcr.pi_vb ^= QB_VALID_BIT;
+	}
+
+	/* Flush all the cacheline without load/store in between */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++)
+		eqcr_pi++;
+	s->eqcr.pi = eqcr_pi & full_mask;
+
+	return num_enqueued;
+}
+
+/**
+ * qbman_swp_enqueue_multiple_desc_mem_back() - Issue a multi enqueue command
+ * using multiple enqueue descriptor
+ * @s:  the software portal used for enqueue
+ * @d:  table of minimal enqueue descriptor
+ * @fd: table pointer of frame descriptor table to be enqueued
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static
+int qbman_swp_enqueue_multiple_desc_mem_back(struct qbman_swp *s,
+					   const struct qbman_eq_desc *d,
+					   const struct dpaa2_fd *fd,
+					   int num_frames)
+{
+	uint32_t *p;
+	const uint32_t *cl;
+	uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+	int i, num_enqueued = 0;
+
+	half_mask = (s->eqcr.pi_ci_mask>>1);
+	full_mask = s->eqcr.pi_ci_mask;
+	if (!s->eqcr.available) {
+		eqcr_ci = s->eqcr.ci;
+		p = s->addr_cena + QBMAN_CENA_SWP_EQCR_CI_MEMBACK;
+		s->eqcr.ci = *p & full_mask;
+		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+					eqcr_ci, s->eqcr.ci);
+		if (!s->eqcr.available)
+			return 0;
+	}
+
+	eqcr_pi = s->eqcr.pi;
+	num_enqueued = (s->eqcr.available < num_frames) ?
+			s->eqcr.available : num_frames;
+	s->eqcr.available -= num_enqueued;
+	/* Fill in the EQCR ring */
+	for (i = 0; i < num_enqueued; i++) {
+		p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		cl = (uint32_t *)(&d[i]);
+		/* Skip copying the verb */
+		memcpy(&p[1], &cl[1], EQ_DESC_SIZE_WITHOUT_FD - 1);
+		memcpy(&p[EQ_DESC_SIZE_FD_START/sizeof(uint32_t)],
+		       &fd[i], sizeof(*fd));
+		eqcr_pi++;
+	}
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++) {
+		p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		cl = (uint32_t *)(&d[i]);
+		p[0] = cl[0] | s->eqcr.pi_vb;
+		eqcr_pi++;
+		if (!(eqcr_pi & half_mask))
+			s->eqcr.pi_vb ^= QB_VALID_BIT;
+	}
+
+	s->eqcr.pi = eqcr_pi & full_mask;
+
+	dma_wmb();
+	qbman_write_register(s, QBMAN_CINH_SWP_EQCR_PI,
+				(QB_RT_BIT)|(s->eqcr.pi)|s->eqcr.pi_vb);
+
+	return num_enqueued;
+}
+
+/* Static (push) dequeue */
+
+/**
+ * qbman_swp_push_get() - Get the push dequeue setup
+ * @p:           the software portal object
+ * @channel_idx: the channel index to query
+ * @enabled:     returned boolean to show whether the push dequeue is enabled
+ *               for the given channel
+ */
+void qbman_swp_push_get(struct qbman_swp *s, u8 channel_idx, int *enabled)
+{
+	u16 src = (s->sdq >> QB_SDQCR_SRC_SHIFT) & QB_SDQCR_SRC_MASK;
+
+	WARN_ON(channel_idx > 15);
+	*enabled = src | (1 << channel_idx);
+}
+
+/**
+ * qbman_swp_push_set() - Enable or disable push dequeue
+ * @p:           the software portal object
+ * @channel_idx: the channel index (0 to 15)
+ * @enable:      enable or disable push dequeue
+ */
+void qbman_swp_push_set(struct qbman_swp *s, u8 channel_idx, int enable)
+{
+	u16 dqsrc;
+
+	WARN_ON(channel_idx > 15);
+	if (enable)
+		s->sdq |= 1 << channel_idx;
+	else
+		s->sdq &= ~(1 << channel_idx);
+
+	/* Read make the complete src map.  If no channels are enabled
+	 * the SDQCR must be 0 or else QMan will assert errors
+	 */
+	dqsrc = (s->sdq >> QB_SDQCR_SRC_SHIFT) & QB_SDQCR_SRC_MASK;
+	if (dqsrc != 0)
+		qbman_write_register(s, QBMAN_CINH_SWP_SDQCR, s->sdq);
+	else
+		qbman_write_register(s, QBMAN_CINH_SWP_SDQCR, 0);
+}
+
+#define QB_VDQCR_VERB_DCT_SHIFT    0
+#define QB_VDQCR_VERB_DT_SHIFT     2
+#define QB_VDQCR_VERB_RLS_SHIFT    4
+#define QB_VDQCR_VERB_WAE_SHIFT    5
+
+enum qb_pull_dt_e {
+	qb_pull_dt_channel,
+	qb_pull_dt_workqueue,
+	qb_pull_dt_framequeue
+};
+
+/**
+ * qbman_pull_desc_clear() - Clear the contents of a descriptor to
+ *                           default/starting state
+ * @d: the pull dequeue descriptor to be cleared
+ */
+void qbman_pull_desc_clear(struct qbman_pull_desc *d)
+{
+	memset(d, 0, sizeof(*d));
+}
+
+/**
+ * qbman_pull_desc_set_storage()- Set the pull dequeue storage
+ * @d:            the pull dequeue descriptor to be set
+ * @storage:      the pointer of the memory to store the dequeue result
+ * @storage_phys: the physical address of the storage memory
+ * @stash:        to indicate whether write allocate is enabled
+ *
+ * If not called, or if called with 'storage' as NULL, the result pull dequeues
+ * will produce results to DQRR. If 'storage' is non-NULL, then results are
+ * produced to the given memory location (using the DMA address which
+ * the caller provides in 'storage_phys'), and 'stash' controls whether or not
+ * those writes to main-memory express a cache-warming attribute.
+ */
+void qbman_pull_desc_set_storage(struct qbman_pull_desc *d,
+				 struct dpaa2_dq *storage,
+				 dma_addr_t storage_phys,
+				 int stash)
+{
+	/* save the virtual address */
+	d->rsp_addr_virt = (u64)(uintptr_t)storage;
+
+	if (!storage) {
+		d->verb &= ~(1 << QB_VDQCR_VERB_RLS_SHIFT);
+		return;
+	}
+	d->verb |= 1 << QB_VDQCR_VERB_RLS_SHIFT;
+	if (stash)
+		d->verb |= 1 << QB_VDQCR_VERB_WAE_SHIFT;
+	else
+		d->verb &= ~(1 << QB_VDQCR_VERB_WAE_SHIFT);
+
+	d->rsp_addr = cpu_to_le64(storage_phys);
+}
+
+/**
+ * qbman_pull_desc_set_numframes() - Set the number of frames to be dequeued
+ * @d:         the pull dequeue descriptor to be set
+ * @numframes: number of frames to be set, must be between 1 and 16, inclusive
+ */
+void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d, u8 numframes)
+{
+	d->numf = numframes - 1;
+}
+
+/*
+ * Exactly one of the following descriptor "actions" should be set. (Calling any
+ * one of these will replace the effect of any prior call to one of these.)
+ * - pull dequeue from the given frame queue (FQ)
+ * - pull dequeue from any FQ in the given work queue (WQ)
+ * - pull dequeue from any FQ in any WQ in the given channel
+ */
+
+/**
+ * qbman_pull_desc_set_fq() - Set fqid from which the dequeue command dequeues
+ * @fqid: the frame queue index of the given FQ
+ */
+void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, u32 fqid)
+{
+	d->verb |= 1 << QB_VDQCR_VERB_DCT_SHIFT;
+	d->verb |= qb_pull_dt_framequeue << QB_VDQCR_VERB_DT_SHIFT;
+	d->dq_src = cpu_to_le32(fqid);
+}
+
+/**
+ * qbman_pull_desc_set_wq() - Set wqid from which the dequeue command dequeues
+ * @wqid: composed of channel id and wqid within the channel
+ * @dct:  the dequeue command type
+ */
+void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, u32 wqid,
+			    enum qbman_pull_type_e dct)
+{
+	d->verb |= dct << QB_VDQCR_VERB_DCT_SHIFT;
+	d->verb |= qb_pull_dt_workqueue << QB_VDQCR_VERB_DT_SHIFT;
+	d->dq_src = cpu_to_le32(wqid);
+}
+
+/**
+ * qbman_pull_desc_set_channel() - Set channelid from which the dequeue command
+ *                                 dequeues
+ * @chid: the channel id to be dequeued
+ * @dct:  the dequeue command type
+ */
+void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid,
+				 enum qbman_pull_type_e dct)
+{
+	d->verb |= dct << QB_VDQCR_VERB_DCT_SHIFT;
+	d->verb |= qb_pull_dt_channel << QB_VDQCR_VERB_DT_SHIFT;
+	d->dq_src = cpu_to_le32(chid);
+}
+
+/**
+ * qbman_swp_pull_direct() - Issue the pull dequeue command
+ * @s: the software portal object
+ * @d: the software portal descriptor which has been configured with
+ *     the set of qbman_pull_desc_set_*() calls
+ *
+ * Return 0 for success, and -EBUSY if the software portal is not ready
+ * to do pull dequeue.
+ */
+static
+int qbman_swp_pull_direct(struct qbman_swp *s, struct qbman_pull_desc *d)
+{
+	struct qbman_pull_desc *p;
+
+	if (!atomic_dec_and_test(&s->vdq.available)) {
+		atomic_inc(&s->vdq.available);
+		return -EBUSY;
+	}
+	s->vdq.storage = (void *)(uintptr_t)d->rsp_addr_virt;
+	if ((s->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000)
+		p = qbman_get_cmd(s, QBMAN_CENA_SWP_VDQCR);
+	else
+		p = qbman_get_cmd(s, QBMAN_CENA_SWP_VDQCR_MEM);
+	p->numf = d->numf;
+	p->tok = QMAN_DQ_TOKEN_VALID;
+	p->dq_src = d->dq_src;
+	p->rsp_addr = d->rsp_addr;
+	p->rsp_addr_virt = d->rsp_addr_virt;
+	dma_wmb();
+	/* Set the verb byte, have to substitute in the valid-bit */
+	p->verb = d->verb | s->vdq.valid_bit;
+	s->vdq.valid_bit ^= QB_VALID_BIT;
+
+	return 0;
+}
+
+/**
+ * qbman_swp_pull_mem_back() - Issue the pull dequeue command
+ * @s: the software portal object
+ * @d: the software portal descriptor which has been configured with
+ *     the set of qbman_pull_desc_set_*() calls
+ *
+ * Return 0 for success, and -EBUSY if the software portal is not ready
+ * to do pull dequeue.
+ */
+static
+int qbman_swp_pull_mem_back(struct qbman_swp *s, struct qbman_pull_desc *d)
+{
+	struct qbman_pull_desc *p;
+
+	if (!atomic_dec_and_test(&s->vdq.available)) {
+		atomic_inc(&s->vdq.available);
+		return -EBUSY;
+	}
+	s->vdq.storage = (void *)(uintptr_t)d->rsp_addr_virt;
+	if ((s->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000)
+		p = qbman_get_cmd(s, QBMAN_CENA_SWP_VDQCR);
+	else
+		p = qbman_get_cmd(s, QBMAN_CENA_SWP_VDQCR_MEM);
+	p->numf = d->numf;
+	p->tok = QMAN_DQ_TOKEN_VALID;
+	p->dq_src = d->dq_src;
+	p->rsp_addr = d->rsp_addr;
+	p->rsp_addr_virt = d->rsp_addr_virt;
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	p->verb = d->verb | s->vdq.valid_bit;
+	s->vdq.valid_bit ^= QB_VALID_BIT;
+	dma_wmb();
+	qbman_write_register(s, QBMAN_CINH_SWP_VDQCR_RT, QMAN_RT_MODE);
+
+	return 0;
+}
+
+#define QMAN_DQRR_PI_MASK   0xf
+
+/**
+ * qbman_swp_dqrr_next_direct() - Get an valid DQRR entry
+ * @s: the software portal object
+ *
+ * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry
+ * only once, so repeated calls can return a sequence of DQRR entries, without
+ * requiring they be consumed immediately or in any particular order.
+ */
+const struct dpaa2_dq *qbman_swp_dqrr_next_direct(struct qbman_swp *s)
+{
+	u32 verb;
+	u32 response_verb;
+	u32 flags;
+	struct dpaa2_dq *p;
+
+	/* Before using valid-bit to detect if something is there, we have to
+	 * handle the case of the DQRR reset bug...
+	 */
+	if (unlikely(s->dqrr.reset_bug)) {
+		/*
+		 * We pick up new entries by cache-inhibited producer index,
+		 * which means that a non-coherent mapping would require us to
+		 * invalidate and read *only* once that PI has indicated that
+		 * there's an entry here. The first trip around the DQRR ring
+		 * will be much less efficient than all subsequent trips around
+		 * it...
+		 */
+		u8 pi = qbman_read_register(s, QBMAN_CINH_SWP_DQPI) &
+			QMAN_DQRR_PI_MASK;
+
+		/* there are new entries if pi != next_idx */
+		if (pi == s->dqrr.next_idx)
+			return NULL;
+
+		/*
+		 * if next_idx is/was the last ring index, and 'pi' is
+		 * different, we can disable the workaround as all the ring
+		 * entries have now been DMA'd to so valid-bit checking is
+		 * repaired. Note: this logic needs to be based on next_idx
+		 * (which increments one at a time), rather than on pi (which
+		 * can burst and wrap-around between our snapshots of it).
+		 */
+		if (s->dqrr.next_idx == (s->dqrr.dqrr_size - 1)) {
+			pr_debug("next_idx=%d, pi=%d, clear reset bug\n",
+				 s->dqrr.next_idx, pi);
+			s->dqrr.reset_bug = 0;
+		}
+		prefetch(qbman_get_cmd(s,
+				       QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+	}
+
+	p = qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx));
+	verb = p->dq.verb;
+
+	/*
+	 * If the valid-bit isn't of the expected polarity, nothing there. Note,
+	 * in the DQRR reset bug workaround, we shouldn't need to skip these
+	 * check, because we've already determined that a new entry is available
+	 * and we've invalidated the cacheline before reading it, so the
+	 * valid-bit behaviour is repaired and should tell us what we already
+	 * knew from reading PI.
+	 */
+	if ((verb & QB_VALID_BIT) != s->dqrr.valid_bit) {
+		prefetch(qbman_get_cmd(s,
+				       QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+		return NULL;
+	}
+	/*
+	 * There's something there. Move "next_idx" attention to the next ring
+	 * entry (and prefetch it) before returning what we found.
+	 */
+	s->dqrr.next_idx++;
+	s->dqrr.next_idx &= s->dqrr.dqrr_size - 1; /* Wrap around */
+	if (!s->dqrr.next_idx)
+		s->dqrr.valid_bit ^= QB_VALID_BIT;
+
+	/*
+	 * If this is the final response to a volatile dequeue command
+	 * indicate that the vdq is available
+	 */
+	flags = p->dq.stat;
+	response_verb = verb & QBMAN_RESULT_MASK;
+	if ((response_verb == QBMAN_RESULT_DQ) &&
+	    (flags & DPAA2_DQ_STAT_VOLATILE) &&
+	    (flags & DPAA2_DQ_STAT_EXPIRED))
+		atomic_inc(&s->vdq.available);
+
+	prefetch(qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+
+	return p;
+}
+
+/**
+ * qbman_swp_dqrr_next_mem_back() - Get an valid DQRR entry
+ * @s: the software portal object
+ *
+ * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry
+ * only once, so repeated calls can return a sequence of DQRR entries, without
+ * requiring they be consumed immediately or in any particular order.
+ */
+const struct dpaa2_dq *qbman_swp_dqrr_next_mem_back(struct qbman_swp *s)
+{
+	u32 verb;
+	u32 response_verb;
+	u32 flags;
+	struct dpaa2_dq *p;
+
+	/* Before using valid-bit to detect if something is there, we have to
+	 * handle the case of the DQRR reset bug...
+	 */
+	if (unlikely(s->dqrr.reset_bug)) {
+		/*
+		 * We pick up new entries by cache-inhibited producer index,
+		 * which means that a non-coherent mapping would require us to
+		 * invalidate and read *only* once that PI has indicated that
+		 * there's an entry here. The first trip around the DQRR ring
+		 * will be much less efficient than all subsequent trips around
+		 * it...
+		 */
+		u8 pi = qbman_read_register(s, QBMAN_CINH_SWP_DQPI) &
+			QMAN_DQRR_PI_MASK;
+
+		/* there are new entries if pi != next_idx */
+		if (pi == s->dqrr.next_idx)
+			return NULL;
+
+		/*
+		 * if next_idx is/was the last ring index, and 'pi' is
+		 * different, we can disable the workaround as all the ring
+		 * entries have now been DMA'd to so valid-bit checking is
+		 * repaired. Note: this logic needs to be based on next_idx
+		 * (which increments one at a time), rather than on pi (which
+		 * can burst and wrap-around between our snapshots of it).
+		 */
+		if (s->dqrr.next_idx == (s->dqrr.dqrr_size - 1)) {
+			pr_debug("next_idx=%d, pi=%d, clear reset bug\n",
+				 s->dqrr.next_idx, pi);
+			s->dqrr.reset_bug = 0;
+		}
+		prefetch(qbman_get_cmd(s,
+				       QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+	}
+
+	p = qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR_MEM(s->dqrr.next_idx));
+	verb = p->dq.verb;
+
+	/*
+	 * If the valid-bit isn't of the expected polarity, nothing there. Note,
+	 * in the DQRR reset bug workaround, we shouldn't need to skip these
+	 * check, because we've already determined that a new entry is available
+	 * and we've invalidated the cacheline before reading it, so the
+	 * valid-bit behaviour is repaired and should tell us what we already
+	 * knew from reading PI.
+	 */
+	if ((verb & QB_VALID_BIT) != s->dqrr.valid_bit) {
+		prefetch(qbman_get_cmd(s,
+				       QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+		return NULL;
+	}
+	/*
+	 * There's something there. Move "next_idx" attention to the next ring
+	 * entry (and prefetch it) before returning what we found.
+	 */
+	s->dqrr.next_idx++;
+	s->dqrr.next_idx &= s->dqrr.dqrr_size - 1; /* Wrap around */
+	if (!s->dqrr.next_idx)
+		s->dqrr.valid_bit ^= QB_VALID_BIT;
+
+	/*
+	 * If this is the final response to a volatile dequeue command
+	 * indicate that the vdq is available
+	 */
+	flags = p->dq.stat;
+	response_verb = verb & QBMAN_RESULT_MASK;
+	if ((response_verb == QBMAN_RESULT_DQ) &&
+	    (flags & DPAA2_DQ_STAT_VOLATILE) &&
+	    (flags & DPAA2_DQ_STAT_EXPIRED))
+		atomic_inc(&s->vdq.available);
+
+	prefetch(qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+
+	return p;
+}
+
+/**
+ * qbman_swp_dqrr_consume() -  Consume DQRR entries previously returned from
+ *                             qbman_swp_dqrr_next().
+ * @s: the software portal object
+ * @dq: the DQRR entry to be consumed
+ */
+void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct dpaa2_dq *dq)
+{
+	qbman_write_register(s, QBMAN_CINH_SWP_DCAP, QBMAN_IDX_FROM_DQRR(dq));
+}
+
+/**
+ * qbman_result_has_new_result() - Check and get the dequeue response from the
+ *                                 dq storage memory set in pull dequeue command
+ * @s: the software portal object
+ * @dq: the dequeue result read from the memory
+ *
+ * Return 1 for getting a valid dequeue result, or 0 for not getting a valid
+ * dequeue result.
+ *
+ * Only used for user-provided storage of dequeue results, not DQRR. For
+ * efficiency purposes, the driver will perform any required endianness
+ * conversion to ensure that the user's dequeue result storage is in host-endian
+ * format. As such, once the user has called qbman_result_has_new_result() and
+ * been returned a valid dequeue result, they should not call it again on
+ * the same memory location (except of course if another dequeue command has
+ * been executed to produce a new result to that location).
+ */
+int qbman_result_has_new_result(struct qbman_swp *s, const struct dpaa2_dq *dq)
+{
+	if (dq->dq.tok != QMAN_DQ_TOKEN_VALID)
+		return 0;
+
+	/*
+	 * Set token to be 0 so we will detect change back to 1
+	 * next time the looping is traversed. Const is cast away here
+	 * as we want users to treat the dequeue responses as read only.
+	 */
+	((struct dpaa2_dq *)dq)->dq.tok = 0;
+
+	/*
+	 * Determine whether VDQCR is available based on whether the
+	 * current result is sitting in the first storage location of
+	 * the busy command.
+	 */
+	if (s->vdq.storage == dq) {
+		s->vdq.storage = NULL;
+		atomic_inc(&s->vdq.available);
+	}
+
+	return 1;
+}
+
+/**
+ * qbman_release_desc_clear() - Clear the contents of a descriptor to
+ *                              default/starting state.
+ */
+void qbman_release_desc_clear(struct qbman_release_desc *d)
+{
+	memset(d, 0, sizeof(*d));
+	d->verb = 1 << 5; /* Release Command Valid */
+}
+
+/**
+ * qbman_release_desc_set_bpid() - Set the ID of the buffer pool to release to
+ */
+void qbman_release_desc_set_bpid(struct qbman_release_desc *d, u16 bpid)
+{
+	d->bpid = cpu_to_le16(bpid);
+}
+
+/**
+ * qbman_release_desc_set_rcdi() - Determines whether or not the portal's RCDI
+ * interrupt source should be asserted after the release command is completed.
+ */
+void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable)
+{
+	if (enable)
+		d->verb |= 1 << 6;
+	else
+		d->verb &= ~(1 << 6);
+}
+
+#define RAR_IDX(rar)     ((rar) & 0x7)
+#define RAR_VB(rar)      ((rar) & 0x80)
+#define RAR_SUCCESS(rar) ((rar) & 0x100)
+
+/**
+ * qbman_swp_release_direct() - Issue a buffer release command
+ * @s:           the software portal object
+ * @d:           the release descriptor
+ * @buffers:     a pointer pointing to the buffer address to be released
+ * @num_buffers: number of buffers to be released,  must be less than 8
+ *
+ * Return 0 for success, -EBUSY if the release command ring is not ready.
+ */
+int qbman_swp_release_direct(struct qbman_swp *s,
+			     const struct qbman_release_desc *d,
+			     const u64 *buffers, unsigned int num_buffers)
+{
+	int i;
+	struct qbman_release_desc *p;
+	u32 rar;
+
+	if (!num_buffers || (num_buffers > 7))
+		return -EINVAL;
+
+	rar = qbman_read_register(s, QBMAN_CINH_SWP_RAR);
+	if (!RAR_SUCCESS(rar))
+		return -EBUSY;
+
+	/* Start the release command */
+	p = qbman_get_cmd(s, QBMAN_CENA_SWP_RCR(RAR_IDX(rar)));
+
+	/* Copy the caller's buffer pointers to the command */
+	for (i = 0; i < num_buffers; i++)
+		p->buf[i] = cpu_to_le64(buffers[i]);
+	p->bpid = d->bpid;
+
+	/*
+	 * Set the verb byte, have to substitute in the valid-bit
+	 * and the number of buffers.
+	 */
+	dma_wmb();
+	p->verb = d->verb | RAR_VB(rar) | num_buffers;
+
+	return 0;
+}
+
+/**
+ * qbman_swp_release_mem_back() - Issue a buffer release command
+ * @s:           the software portal object
+ * @d:           the release descriptor
+ * @buffers:     a pointer pointing to the buffer address to be released
+ * @num_buffers: number of buffers to be released,  must be less than 8
+ *
+ * Return 0 for success, -EBUSY if the release command ring is not ready.
+ */
+int qbman_swp_release_mem_back(struct qbman_swp *s,
+			       const struct qbman_release_desc *d,
+			       const u64 *buffers, unsigned int num_buffers)
+{
+	int i;
+	struct qbman_release_desc *p;
+	u32 rar;
+
+	if (!num_buffers || (num_buffers > 7))
+		return -EINVAL;
+
+	rar = qbman_read_register(s, QBMAN_CINH_SWP_RAR);
+	if (!RAR_SUCCESS(rar))
+		return -EBUSY;
+
+	/* Start the release command */
+	p = qbman_get_cmd(s, QBMAN_CENA_SWP_RCR_MEM(RAR_IDX(rar)));
+
+	/* Copy the caller's buffer pointers to the command */
+	for (i = 0; i < num_buffers; i++)
+		p->buf[i] = cpu_to_le64(buffers[i]);
+	p->bpid = d->bpid;
+
+	p->verb = d->verb | RAR_VB(rar) | num_buffers;
+	dma_wmb();
+	qbman_write_register(s, QBMAN_CINH_SWP_RCR_AM_RT +
+			     RAR_IDX(rar)  * 4, QMAN_RT_MODE);
+
+	return 0;
+}
+
+struct qbman_acquire_desc {
+	u8 verb;
+	u8 reserved;
+	__le16 bpid;
+	u8 num;
+	u8 reserved2[59];
+};
+
+struct qbman_acquire_rslt {
+	u8 verb;
+	u8 rslt;
+	__le16 reserved;
+	u8 num;
+	u8 reserved2[3];
+	__le64 buf[7];
+};
+
+/**
+ * qbman_swp_acquire() - Issue a buffer acquire command
+ * @s:           the software portal object
+ * @bpid:        the buffer pool index
+ * @buffers:     a pointer pointing to the acquired buffer addresses
+ * @num_buffers: number of buffers to be acquired, must be less than 8
+ *
+ * Return 0 for success, or negative error code if the acquire command
+ * fails.
+ */
+int qbman_swp_acquire(struct qbman_swp *s, u16 bpid, u64 *buffers,
+		      unsigned int num_buffers)
+{
+	struct qbman_acquire_desc *p;
+	struct qbman_acquire_rslt *r;
+	int i;
+
+	if (!num_buffers || (num_buffers > 7))
+		return -EINVAL;
+
+	/* Start the management command */
+	p = qbman_swp_mc_start(s);
+
+	if (!p)
+		return -EBUSY;
+
+	/* Encode the caller-provided attributes */
+	p->bpid = cpu_to_le16(bpid);
+	p->num = num_buffers;
+
+	/* Complete the management command */
+	r = qbman_swp_mc_complete(s, p, QBMAN_MC_ACQUIRE);
+	if (unlikely(!r)) {
+		pr_err("qbman: acquire from BPID %d failed, no response\n",
+		       bpid);
+		return -EIO;
+	}
+
+	/* Decode the outcome */
+	WARN_ON((r->verb & 0x7f) != QBMAN_MC_ACQUIRE);
+
+	/* Determine success or failure */
+	if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) {
+		pr_err("qbman: acquire from BPID 0x%x failed, code=0x%02x\n",
+		       bpid, r->rslt);
+		return -EIO;
+	}
+
+	WARN_ON(r->num > num_buffers);
+
+	/* Copy the acquired buffers to the caller's array */
+	for (i = 0; i < r->num; i++)
+		buffers[i] = le64_to_cpu(r->buf[i]);
+
+	return (int)r->num;
+}
+
+struct qbman_alt_fq_state_desc {
+	u8 verb;
+	u8 reserved[3];
+	__le32 fqid;
+	u8 reserved2[56];
+};
+
+struct qbman_alt_fq_state_rslt {
+	u8 verb;
+	u8 rslt;
+	u8 reserved[62];
+};
+
+#define ALT_FQ_FQID_MASK 0x00FFFFFF
+
+int qbman_swp_alt_fq_state(struct qbman_swp *s, u32 fqid,
+			   u8 alt_fq_verb)
+{
+	struct qbman_alt_fq_state_desc *p;
+	struct qbman_alt_fq_state_rslt *r;
+
+	/* Start the management command */
+	p = qbman_swp_mc_start(s);
+	if (!p)
+		return -EBUSY;
+
+	p->fqid = cpu_to_le32(fqid & ALT_FQ_FQID_MASK);
+
+	/* Complete the management command */
+	r = qbman_swp_mc_complete(s, p, alt_fq_verb);
+	if (unlikely(!r)) {
+		pr_err("qbman: mgmt cmd failed, no response (verb=0x%x)\n",
+		       alt_fq_verb);
+		return -EIO;
+	}
+
+	/* Decode the outcome */
+	WARN_ON((r->verb & QBMAN_RESULT_MASK) != alt_fq_verb);
+
+	/* Determine success or failure */
+	if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) {
+		pr_err("qbman: ALT FQID %d failed: verb = 0x%08x code = 0x%02x\n",
+		       fqid, r->verb, r->rslt);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+struct qbman_cdan_ctrl_desc {
+	u8 verb;
+	u8 reserved;
+	__le16 ch;
+	u8 we;
+	u8 ctrl;
+	__le16 reserved2;
+	__le64 cdan_ctx;
+	u8 reserved3[48];
+
+};
+
+struct qbman_cdan_ctrl_rslt {
+	u8 verb;
+	u8 rslt;
+	__le16 ch;
+	u8 reserved[60];
+};
+
+int qbman_swp_CDAN_set(struct qbman_swp *s, u16 channelid,
+		       u8 we_mask, u8 cdan_en,
+		       u64 ctx)
+{
+	struct qbman_cdan_ctrl_desc *p = NULL;
+	struct qbman_cdan_ctrl_rslt *r = NULL;
+
+	/* Start the management command */
+	p = qbman_swp_mc_start(s);
+	if (!p)
+		return -EBUSY;
+
+	/* Encode the caller-provided attributes */
+	p->ch = cpu_to_le16(channelid);
+	p->we = we_mask;
+	if (cdan_en)
+		p->ctrl = 1;
+	else
+		p->ctrl = 0;
+	p->cdan_ctx = cpu_to_le64(ctx);
+
+	/* Complete the management command */
+	r = qbman_swp_mc_complete(s, p, QBMAN_WQCHAN_CONFIGURE);
+	if (unlikely(!r)) {
+		pr_err("qbman: wqchan config failed, no response\n");
+		return -EIO;
+	}
+
+	WARN_ON((r->verb & 0x7f) != QBMAN_WQCHAN_CONFIGURE);
+
+	/* Determine success or failure */
+	if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) {
+		pr_err("qbman: CDAN cQID %d failed: code = 0x%02x\n",
+		       channelid, r->rslt);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+#define QBMAN_RESPONSE_VERB_MASK	0x7f
+#define QBMAN_FQ_QUERY_NP		0x45
+#define QBMAN_BP_QUERY			0x32
+
+struct qbman_fq_query_desc {
+	u8 verb;
+	u8 reserved[3];
+	__le32 fqid;
+	u8 reserved2[56];
+};
+
+int qbman_fq_query_state(struct qbman_swp *s, u32 fqid,
+			 struct qbman_fq_query_np_rslt *r)
+{
+	struct qbman_fq_query_desc *p;
+	void *resp;
+
+	p = (struct qbman_fq_query_desc *)qbman_swp_mc_start(s);
+	if (!p)
+		return -EBUSY;
+
+	/* FQID is a 24 bit value */
+	p->fqid = cpu_to_le32(fqid & 0x00FFFFFF);
+	resp = qbman_swp_mc_complete(s, p, QBMAN_FQ_QUERY_NP);
+	if (!resp) {
+		pr_err("qbman: Query FQID %d NP fields failed, no response\n",
+		       fqid);
+		return -EIO;
+	}
+	*r = *(struct qbman_fq_query_np_rslt *)resp;
+	/* Decode the outcome */
+	WARN_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) != QBMAN_FQ_QUERY_NP);
+
+	/* Determine success or failure */
+	if (r->rslt != QBMAN_MC_RSLT_OK) {
+		pr_err("Query NP fields of FQID 0x%x failed, code=0x%02x\n",
+		       p->fqid, r->rslt);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+u32 qbman_fq_state_frame_count(const struct qbman_fq_query_np_rslt *r)
+{
+	return (le32_to_cpu(r->frm_cnt) & 0x00FFFFFF);
+}
+
+u32 qbman_fq_state_byte_count(const struct qbman_fq_query_np_rslt *r)
+{
+	return le32_to_cpu(r->byte_cnt);
+}
+
+struct qbman_bp_query_desc {
+	u8 verb;
+	u8 reserved;
+	__le16 bpid;
+	u8 reserved2[60];
+};
+
+int qbman_bp_query(struct qbman_swp *s, u16 bpid,
+		   struct qbman_bp_query_rslt *r)
+{
+	struct qbman_bp_query_desc *p;
+	void *resp;
+
+	p = (struct qbman_bp_query_desc *)qbman_swp_mc_start(s);
+	if (!p)
+		return -EBUSY;
+
+	p->bpid = cpu_to_le16(bpid);
+	resp = qbman_swp_mc_complete(s, p, QBMAN_BP_QUERY);
+	if (!resp) {
+		pr_err("qbman: Query BPID %d fields failed, no response\n",
+		       bpid);
+		return -EIO;
+	}
+	*r = *(struct qbman_bp_query_rslt *)resp;
+	/* Decode the outcome */
+	WARN_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) != QBMAN_BP_QUERY);
+
+	/* Determine success or failure */
+	if (r->rslt != QBMAN_MC_RSLT_OK) {
+		pr_err("Query fields of BPID 0x%x failed, code=0x%02x\n",
+		       bpid, r->rslt);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+u32 qbman_bp_info_num_free_bufs(struct qbman_bp_query_rslt *a)
+{
+	return le32_to_cpu(a->fill);
+}
diff --git a/drivers/soc/fsl/dpio/qbman-portal.h b/drivers/soc/fsl/dpio/qbman-portal.h
new file mode 100644
index 000000000..c7c2225b7
--- /dev/null
+++ b/drivers/soc/fsl/dpio/qbman-portal.h
@@ -0,0 +1,651 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
+ * Copyright 2016-2019 NXP
+ *
+ */
+#ifndef __FSL_QBMAN_PORTAL_H
+#define __FSL_QBMAN_PORTAL_H
+
+#include <soc/fsl/dpaa2-fd.h>
+
+#define QMAN_REV_4000   0x04000000
+#define QMAN_REV_4100   0x04010000
+#define QMAN_REV_4101   0x04010001
+#define QMAN_REV_5000   0x05000000
+
+#define QMAN_REV_MASK   0xffff0000
+
+struct dpaa2_dq;
+struct qbman_swp;
+
+/* qbman software portal descriptor structure */
+struct qbman_swp_desc {
+	void *cena_bar; /* Cache-enabled portal base address */
+	void __iomem *cinh_bar; /* Cache-inhibited portal base address */
+	u32 qman_version;
+};
+
+#define QBMAN_SWP_INTERRUPT_EQRI 0x01
+#define QBMAN_SWP_INTERRUPT_EQDI 0x02
+#define QBMAN_SWP_INTERRUPT_DQRI 0x04
+#define QBMAN_SWP_INTERRUPT_RCRI 0x08
+#define QBMAN_SWP_INTERRUPT_RCDI 0x10
+#define QBMAN_SWP_INTERRUPT_VDCI 0x20
+
+/* the structure for pull dequeue descriptor */
+struct qbman_pull_desc {
+	u8 verb;
+	u8 numf;
+	u8 tok;
+	u8 reserved;
+	__le32 dq_src;
+	__le64 rsp_addr;
+	u64 rsp_addr_virt;
+	u8 padding[40];
+};
+
+enum qbman_pull_type_e {
+	/* dequeue with priority precedence, respect intra-class scheduling */
+	qbman_pull_type_prio = 1,
+	/* dequeue with active FQ precedence, respect ICS */
+	qbman_pull_type_active,
+	/* dequeue with active FQ precedence, no ICS */
+	qbman_pull_type_active_noics
+};
+
+/* Definitions for parsing dequeue entries */
+#define QBMAN_RESULT_MASK      0x7f
+#define QBMAN_RESULT_DQ        0x60
+#define QBMAN_RESULT_FQRN      0x21
+#define QBMAN_RESULT_FQRNI     0x22
+#define QBMAN_RESULT_FQPN      0x24
+#define QBMAN_RESULT_FQDAN     0x25
+#define QBMAN_RESULT_CDAN      0x26
+#define QBMAN_RESULT_CSCN_MEM  0x27
+#define QBMAN_RESULT_CGCU      0x28
+#define QBMAN_RESULT_BPSCN     0x29
+#define QBMAN_RESULT_CSCN_WQ   0x2a
+
+/* QBMan FQ management command codes */
+#define QBMAN_FQ_SCHEDULE	0x48
+#define QBMAN_FQ_FORCE		0x49
+#define QBMAN_FQ_XON		0x4d
+#define QBMAN_FQ_XOFF		0x4e
+
+/* structure of enqueue descriptor */
+struct qbman_eq_desc {
+	u8 verb;
+	u8 dca;
+	__le16 seqnum;
+	__le16 orpid;
+	__le16 reserved1;
+	__le32 tgtid;
+	__le32 tag;
+	__le16 qdbin;
+	u8 qpri;
+	u8 reserved[3];
+	u8 wae;
+	u8 rspid;
+	__le64 rsp_addr;
+};
+
+struct qbman_eq_desc_with_fd {
+	struct qbman_eq_desc desc;
+	u8 fd[32];
+};
+
+/* buffer release descriptor */
+struct qbman_release_desc {
+	u8 verb;
+	u8 reserved;
+	__le16 bpid;
+	__le32 reserved2;
+	__le64 buf[7];
+};
+
+/* Management command result codes */
+#define QBMAN_MC_RSLT_OK      0xf0
+
+#define CODE_CDAN_WE_EN    0x1
+#define CODE_CDAN_WE_CTX   0x4
+
+/* portal data structure */
+struct qbman_swp {
+	const struct qbman_swp_desc *desc;
+	void *addr_cena;
+	void __iomem *addr_cinh;
+
+	/* Management commands */
+	struct {
+		u32 valid_bit; /* 0x00 or 0x80 */
+	} mc;
+
+	/* Management response */
+	struct {
+		u32 valid_bit; /* 0x00 or 0x80 */
+	} mr;
+
+	/* Push dequeues */
+	u32 sdq;
+
+	/* Volatile dequeues */
+	struct {
+		atomic_t available; /* indicates if a command can be sent */
+		u32 valid_bit; /* 0x00 or 0x80 */
+		struct dpaa2_dq *storage; /* NULL if DQRR */
+	} vdq;
+
+	/* DQRR */
+	struct {
+		u32 next_idx;
+		u32 valid_bit;
+		u8 dqrr_size;
+		int reset_bug; /* indicates dqrr reset workaround is needed */
+	} dqrr;
+
+	struct {
+		u32 pi;
+		u32 pi_vb;
+		u32 pi_ring_size;
+		u32 pi_ci_mask;
+		u32 ci;
+		int available;
+		u32 pend;
+		u32 no_pfdr;
+	} eqcr;
+
+	spinlock_t access_spinlock;
+};
+
+/* Function pointers */
+extern
+int (*qbman_swp_enqueue_ptr)(struct qbman_swp *s,
+			     const struct qbman_eq_desc *d,
+			     const struct dpaa2_fd *fd);
+extern
+int (*qbman_swp_enqueue_multiple_ptr)(struct qbman_swp *s,
+				      const struct qbman_eq_desc *d,
+				      const struct dpaa2_fd *fd,
+				      uint32_t *flags,
+				      int num_frames);
+extern
+int (*qbman_swp_enqueue_multiple_desc_ptr)(struct qbman_swp *s,
+					   const struct qbman_eq_desc *d,
+					   const struct dpaa2_fd *fd,
+					   int num_frames);
+extern
+int (*qbman_swp_pull_ptr)(struct qbman_swp *s, struct qbman_pull_desc *d);
+extern
+const struct dpaa2_dq *(*qbman_swp_dqrr_next_ptr)(struct qbman_swp *s);
+extern
+int (*qbman_swp_release_ptr)(struct qbman_swp *s,
+			     const struct qbman_release_desc *d,
+			     const u64 *buffers,
+			     unsigned int num_buffers);
+
+/* Functions */
+struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d);
+void qbman_swp_finish(struct qbman_swp *p);
+u32 qbman_swp_interrupt_read_status(struct qbman_swp *p);
+void qbman_swp_interrupt_clear_status(struct qbman_swp *p, u32 mask);
+u32 qbman_swp_interrupt_get_trigger(struct qbman_swp *p);
+void qbman_swp_interrupt_set_trigger(struct qbman_swp *p, u32 mask);
+int qbman_swp_interrupt_get_inhibit(struct qbman_swp *p);
+void qbman_swp_interrupt_set_inhibit(struct qbman_swp *p, int inhibit);
+
+void qbman_swp_push_get(struct qbman_swp *p, u8 channel_idx, int *enabled);
+void qbman_swp_push_set(struct qbman_swp *p, u8 channel_idx, int enable);
+
+void qbman_pull_desc_clear(struct qbman_pull_desc *d);
+void qbman_pull_desc_set_storage(struct qbman_pull_desc *d,
+				 struct dpaa2_dq *storage,
+				 dma_addr_t storage_phys,
+				 int stash);
+void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d, u8 numframes);
+void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, u32 fqid);
+void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, u32 wqid,
+			    enum qbman_pull_type_e dct);
+void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid,
+				 enum qbman_pull_type_e dct);
+
+void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct dpaa2_dq *dq);
+
+int qbman_result_has_new_result(struct qbman_swp *p, const struct dpaa2_dq *dq);
+
+void qbman_eq_desc_clear(struct qbman_eq_desc *d);
+void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success);
+void qbman_eq_desc_set_token(struct qbman_eq_desc *d, u8 token);
+void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid);
+void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid,
+			  u32 qd_bin, u32 qd_prio);
+
+
+void qbman_release_desc_clear(struct qbman_release_desc *d);
+void qbman_release_desc_set_bpid(struct qbman_release_desc *d, u16 bpid);
+void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable);
+
+int qbman_swp_acquire(struct qbman_swp *s, u16 bpid, u64 *buffers,
+		      unsigned int num_buffers);
+int qbman_swp_alt_fq_state(struct qbman_swp *s, u32 fqid,
+			   u8 alt_fq_verb);
+int qbman_swp_CDAN_set(struct qbman_swp *s, u16 channelid,
+		       u8 we_mask, u8 cdan_en,
+		       u64 ctx);
+
+void *qbman_swp_mc_start(struct qbman_swp *p);
+void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb);
+void *qbman_swp_mc_result(struct qbman_swp *p);
+
+/**
+ * qbman_swp_enqueue() - Issue an enqueue command
+ * @s:  the software portal used for enqueue
+ * @d:  the enqueue descriptor
+ * @fd: the frame descriptor to be enqueued
+ *
+ * Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
+ */
+static inline int
+qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d,
+		  const struct dpaa2_fd *fd)
+{
+	return qbman_swp_enqueue_ptr(s, d, fd);
+}
+
+/**
+ * qbman_swp_enqueue_multiple() - Issue a multi enqueue command
+ * using one enqueue descriptor
+ * @s:  the software portal used for enqueue
+ * @d:  the enqueue descriptor
+ * @fd: table pointer of frame descriptor table to be enqueued
+ * @flags: table pointer of QBMAN_ENQUEUE_FLAG_DCA flags, not used if NULL
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static inline int
+qbman_swp_enqueue_multiple(struct qbman_swp *s,
+			   const struct qbman_eq_desc *d,
+			   const struct dpaa2_fd *fd,
+			   uint32_t *flags,
+			   int num_frames)
+{
+	return qbman_swp_enqueue_multiple_ptr(s, d, fd, flags, num_frames);
+}
+
+/**
+ * qbman_swp_enqueue_multiple_desc() - Issue a multi enqueue command
+ * using multiple enqueue descriptor
+ * @s:  the software portal used for enqueue
+ * @d:  table of minimal enqueue descriptor
+ * @fd: table pointer of frame descriptor table to be enqueued
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static inline int
+qbman_swp_enqueue_multiple_desc(struct qbman_swp *s,
+				const struct qbman_eq_desc *d,
+				const struct dpaa2_fd *fd,
+				int num_frames)
+{
+	return qbman_swp_enqueue_multiple_desc_ptr(s, d, fd, num_frames);
+}
+
+/**
+ * qbman_result_is_DQ() - check if the dequeue result is a dequeue response
+ * @dq: the dequeue result to be checked
+ *
+ * DQRR entries may contain non-dequeue results, ie. notifications
+ */
+static inline int qbman_result_is_DQ(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_DQ);
+}
+
+/**
+ * qbman_result_is_SCN() - Check the dequeue result is notification or not
+ * @dq: the dequeue result to be checked
+ *
+ */
+static inline int qbman_result_is_SCN(const struct dpaa2_dq *dq)
+{
+	return !qbman_result_is_DQ(dq);
+}
+
+/* FQ Data Availability */
+static inline int qbman_result_is_FQDAN(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQDAN);
+}
+
+/* Channel Data Availability */
+static inline int qbman_result_is_CDAN(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CDAN);
+}
+
+/* Congestion State Change */
+static inline int qbman_result_is_CSCN(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CSCN_WQ);
+}
+
+/* Buffer Pool State Change */
+static inline int qbman_result_is_BPSCN(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_BPSCN);
+}
+
+/* Congestion Group Count Update */
+static inline int qbman_result_is_CGCU(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CGCU);
+}
+
+/* Retirement */
+static inline int qbman_result_is_FQRN(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQRN);
+}
+
+/* Retirement Immediate */
+static inline int qbman_result_is_FQRNI(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQRNI);
+}
+
+ /* Park */
+static inline int qbman_result_is_FQPN(const struct dpaa2_dq *dq)
+{
+	return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQPN);
+}
+
+/**
+ * qbman_result_SCN_state() - Get the state field in State-change notification
+ */
+static inline u8 qbman_result_SCN_state(const struct dpaa2_dq *scn)
+{
+	return scn->scn.state;
+}
+
+#define SCN_RID_MASK 0x00FFFFFF
+
+/**
+ * qbman_result_SCN_rid() - Get the resource id in State-change notification
+ */
+static inline u32 qbman_result_SCN_rid(const struct dpaa2_dq *scn)
+{
+	return le32_to_cpu(scn->scn.rid_tok) & SCN_RID_MASK;
+}
+
+/**
+ * qbman_result_SCN_ctx() - Get the context data in State-change notification
+ */
+static inline u64 qbman_result_SCN_ctx(const struct dpaa2_dq *scn)
+{
+	return le64_to_cpu(scn->scn.ctx);
+}
+
+/**
+ * qbman_swp_fq_schedule() - Move the fq to the scheduled state
+ * @s:    the software portal object
+ * @fqid: the index of frame queue to be scheduled
+ *
+ * There are a couple of different ways that a FQ can end up parked state,
+ * This schedules it.
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_fq_schedule(struct qbman_swp *s, u32 fqid)
+{
+	return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_SCHEDULE);
+}
+
+/**
+ * qbman_swp_fq_force() - Force the FQ to fully scheduled state
+ * @s:    the software portal object
+ * @fqid: the index of frame queue to be forced
+ *
+ * Force eligible will force a tentatively-scheduled FQ to be fully-scheduled
+ * and thus be available for selection by any channel-dequeuing behaviour (push
+ * or pull). If the FQ is subsequently "dequeued" from the channel and is still
+ * empty at the time this happens, the resulting dq_entry will have no FD.
+ * (qbman_result_DQ_fd() will return NULL.)
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_fq_force(struct qbman_swp *s, u32 fqid)
+{
+	return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_FORCE);
+}
+
+/**
+ * qbman_swp_fq_xon() - sets FQ flow-control to XON
+ * @s:    the software portal object
+ * @fqid: the index of frame queue
+ *
+ * This setting doesn't affect enqueues to the FQ, just dequeues.
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_fq_xon(struct qbman_swp *s, u32 fqid)
+{
+	return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XON);
+}
+
+/**
+ * qbman_swp_fq_xoff() - sets FQ flow-control to XOFF
+ * @s:    the software portal object
+ * @fqid: the index of frame queue
+ *
+ * This setting doesn't affect enqueues to the FQ, just dequeues.
+ * XOFF FQs will remain in the tenatively-scheduled state, even when
+ * non-empty, meaning they won't be selected for scheduled dequeuing.
+ * If a FQ is changed to XOFF after it had already become truly-scheduled
+ * to a channel, and a pull dequeue of that channel occurs that selects
+ * that FQ for dequeuing, then the resulting dq_entry will have no FD.
+ * (qbman_result_DQ_fd() will return NULL.)
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_fq_xoff(struct qbman_swp *s, u32 fqid)
+{
+	return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XOFF);
+}
+
+/* If the user has been allocated a channel object that is going to generate
+ * CDANs to another channel, then the qbman_swp_CDAN* functions will be
+ * necessary.
+ *
+ * CDAN-enabled channels only generate a single CDAN notification, after which
+ * they need to be reenabled before they'll generate another. The idea is
+ * that pull dequeuing will occur in reaction to the CDAN, followed by a
+ * reenable step. Each function generates a distinct command to hardware, so a
+ * combination function is provided if the user wishes to modify the "context"
+ * (which shows up in each CDAN message) each time they reenable, as a single
+ * command to hardware.
+ */
+
+/**
+ * qbman_swp_CDAN_set_context() - Set CDAN context
+ * @s:         the software portal object
+ * @channelid: the channel index
+ * @ctx:       the context to be set in CDAN
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_CDAN_set_context(struct qbman_swp *s, u16 channelid,
+					     u64 ctx)
+{
+	return qbman_swp_CDAN_set(s, channelid,
+				  CODE_CDAN_WE_CTX,
+				  0, ctx);
+}
+
+/**
+ * qbman_swp_CDAN_enable() - Enable CDAN for the channel
+ * @s:         the software portal object
+ * @channelid: the index of the channel to generate CDAN
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_CDAN_enable(struct qbman_swp *s, u16 channelid)
+{
+	return qbman_swp_CDAN_set(s, channelid,
+				  CODE_CDAN_WE_EN,
+				  1, 0);
+}
+
+/**
+ * qbman_swp_CDAN_disable() - disable CDAN for the channel
+ * @s:         the software portal object
+ * @channelid: the index of the channel to generate CDAN
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_CDAN_disable(struct qbman_swp *s, u16 channelid)
+{
+	return qbman_swp_CDAN_set(s, channelid,
+				  CODE_CDAN_WE_EN,
+				  0, 0);
+}
+
+/**
+ * qbman_swp_CDAN_set_context_enable() - Set CDAN contest and enable CDAN
+ * @s:         the software portal object
+ * @channelid: the index of the channel to generate CDAN
+ * @ctx:i      the context set in CDAN
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_CDAN_set_context_enable(struct qbman_swp *s,
+						    u16 channelid,
+						    u64 ctx)
+{
+	return qbman_swp_CDAN_set(s, channelid,
+				  CODE_CDAN_WE_EN | CODE_CDAN_WE_CTX,
+				  1, ctx);
+}
+
+/* Wraps up submit + poll-for-result */
+static inline void *qbman_swp_mc_complete(struct qbman_swp *swp, void *cmd,
+					  u8 cmd_verb)
+{
+	int loopvar = 2000;
+
+	qbman_swp_mc_submit(swp, cmd, cmd_verb);
+
+	do {
+		cmd = qbman_swp_mc_result(swp);
+	} while (!cmd && loopvar--);
+
+	WARN_ON(!loopvar);
+
+	return cmd;
+}
+
+/* Query APIs */
+struct qbman_fq_query_np_rslt {
+	u8 verb;
+	u8 rslt;
+	u8 st1;
+	u8 st2;
+	u8 reserved[2];
+	__le16 od1_sfdr;
+	__le16 od2_sfdr;
+	__le16 od3_sfdr;
+	__le16 ra1_sfdr;
+	__le16 ra2_sfdr;
+	__le32 pfdr_hptr;
+	__le32 pfdr_tptr;
+	__le32 frm_cnt;
+	__le32 byte_cnt;
+	__le16 ics_surp;
+	u8 is;
+	u8 reserved2[29];
+};
+
+int qbman_fq_query_state(struct qbman_swp *s, u32 fqid,
+			 struct qbman_fq_query_np_rslt *r);
+u32 qbman_fq_state_frame_count(const struct qbman_fq_query_np_rslt *r);
+u32 qbman_fq_state_byte_count(const struct qbman_fq_query_np_rslt *r);
+
+struct qbman_bp_query_rslt {
+	u8 verb;
+	u8 rslt;
+	u8 reserved[4];
+	u8 bdi;
+	u8 state;
+	__le32 fill;
+	__le32 hdotr;
+	__le16 swdet;
+	__le16 swdxt;
+	__le16 hwdet;
+	__le16 hwdxt;
+	__le16 swset;
+	__le16 swsxt;
+	__le16 vbpid;
+	__le16 icid;
+	__le64 bpscn_addr;
+	__le64 bpscn_ctx;
+	__le16 hw_targ;
+	u8 dbe;
+	u8 reserved2;
+	u8 sdcnt;
+	u8 hdcnt;
+	u8 sscnt;
+	u8 reserved3[9];
+};
+
+int qbman_bp_query(struct qbman_swp *s, u16 bpid,
+		   struct qbman_bp_query_rslt *r);
+
+u32 qbman_bp_info_num_free_bufs(struct qbman_bp_query_rslt *a);
+
+/**
+ * qbman_swp_release() - Issue a buffer release command
+ * @s:           the software portal object
+ * @d:           the release descriptor
+ * @buffers:     a pointer pointing to the buffer address to be released
+ * @num_buffers: number of buffers to be released,  must be less than 8
+ *
+ * Return 0 for success, -EBUSY if the release command ring is not ready.
+ */
+static inline int qbman_swp_release(struct qbman_swp *s,
+				    const struct qbman_release_desc *d,
+				    const u64 *buffers,
+				    unsigned int num_buffers)
+{
+	return qbman_swp_release_ptr(s, d, buffers, num_buffers);
+}
+
+/**
+ * qbman_swp_pull() - Issue the pull dequeue command
+ * @s: the software portal object
+ * @d: the software portal descriptor which has been configured with
+ *     the set of qbman_pull_desc_set_*() calls
+ *
+ * Return 0 for success, and -EBUSY if the software portal is not ready
+ * to do pull dequeue.
+ */
+static inline int qbman_swp_pull(struct qbman_swp *s,
+				 struct qbman_pull_desc *d)
+{
+	return qbman_swp_pull_ptr(s, d);
+}
+
+/**
+ * qbman_swp_dqrr_next() - Get an valid DQRR entry
+ * @s: the software portal object
+ *
+ * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry
+ * only once, so repeated calls can return a sequence of DQRR entries, without
+ * requiring they be consumed immediately or in any particular order.
+ */
+static inline const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s)
+{
+	return qbman_swp_dqrr_next_ptr(s);
+}
+
+#endif /* __FSL_QBMAN_PORTAL_H */