[PATCH v4 10/41] bus/dpaa: add QMAN interface driver

[Shreyansh Jain <shreyansh.jain@nxp.com>]

The Queue Manager (QMan) is a hardware queue management block that
allows software and accelerators on the datapath to enqueue and dequeue
frames in order to communicate.

This part of QBMAN DPAA Block.

Signed-off-by: Geoff Thorpe <geoff.thorpe@nxp.com>
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
---
 drivers/bus/dpaa/Makefile                 |    4 +
 drivers/bus/dpaa/base/qbman/qman_driver.c |  271 +++++++
 drivers/bus/dpaa/base/qbman/qman_priv.h   |  303 +++++++
 drivers/bus/dpaa/include/fsl_qman.h       | 1254 +++++++++++++++++++++++++++++
 drivers/bus/dpaa/include/fsl_usd.h        |   13 +
 5 files changed, 1845 insertions(+)
 create mode 100644 drivers/bus/dpaa/base/qbman/qman_driver.c
 create mode 100644 drivers/bus/dpaa/base/qbman/qman_priv.h
 create mode 100644 drivers/bus/dpaa/include/fsl_qman.h

diff --git a/drivers/bus/dpaa/Makefile b/drivers/bus/dpaa/Makefile
index ad6f8c0..29f01df 100644
--- a/drivers/bus/dpaa/Makefile
+++ b/drivers/bus/dpaa/Makefile
@@ -70,6 +70,10 @@ SRCS-$(CONFIG_RTE_LIBRTE_DPAA_BUS) += \
 	base/fman/of.c \
 	base/fman/netcfg_layer.c \
 	base/qbman/process.c \
+	base/qbman/qman_driver.c \
 	base/qbman/dpaa_sys.c
 
+# Link Pthread
+LDLIBS += -lpthread
+
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/bus/dpaa/base/qbman/qman_driver.c b/drivers/bus/dpaa/base/qbman/qman_driver.c
new file mode 100644
index 0000000..80dde20
--- /dev/null
+++ b/drivers/bus/dpaa/base/qbman/qman_driver.c
@@ -0,0 +1,271 @@
+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ *   BSD LICENSE
+ *
+ * Copyright 2008-2016 Freescale Semiconductor Inc.
+ * Copyright 2017 NXP.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <fsl_usd.h>
+#include <process.h>
+#include "qman_priv.h"
+#include <sys/ioctl.h>
+#include <rte_branch_prediction.h>
+
+/* Global variable containing revision id (even on non-control plane systems
+ * where CCSR isn't available).
+ */
+u16 qman_ip_rev;
+u16 qm_channel_pool1 = QMAN_CHANNEL_POOL1;
+u16 qm_channel_caam = QMAN_CHANNEL_CAAM;
+u16 qm_channel_pme = QMAN_CHANNEL_PME;
+
+/* Ccsr map address to access ccsrbased register */
+void *qman_ccsr_map;
+/* The qman clock frequency */
+u32 qman_clk;
+
+static __thread int fd = -1;
+static __thread struct qm_portal_config pcfg;
+static __thread struct dpaa_ioctl_portal_map map = {
+	.type = dpaa_portal_qman
+};
+
+static int fsl_qman_portal_init(uint32_t index, int is_shared)
+{
+	cpu_set_t cpuset;
+	int loop, ret;
+	struct dpaa_ioctl_irq_map irq_map;
+
+	/* Verify the thread's cpu-affinity */
+	ret = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t),
+				     &cpuset);
+	if (ret) {
+		error(0, ret, "pthread_getaffinity_np()");
+		return ret;
+	}
+	pcfg.cpu = -1;
+	for (loop = 0; loop < CPU_SETSIZE; loop++)
+		if (CPU_ISSET(loop, &cpuset)) {
+			if (pcfg.cpu != -1) {
+				pr_err("Thread is not affine to 1 cpu\n");
+				return -EINVAL;
+			}
+			pcfg.cpu = loop;
+		}
+	if (pcfg.cpu == -1) {
+		pr_err("Bug in getaffinity handling!\n");
+		return -EINVAL;
+	}
+
+	/* Allocate and map a qman portal */
+	map.index = index;
+	ret = process_portal_map(&map);
+	if (ret) {
+		error(0, ret, "process_portal_map()");
+		return ret;
+	}
+	pcfg.channel = map.channel;
+	pcfg.pools = map.pools;
+	pcfg.index = map.index;
+
+	/* Make the portal's cache-[enabled|inhibited] regions */
+	pcfg.addr_virt[DPAA_PORTAL_CE] = map.addr.cena;
+	pcfg.addr_virt[DPAA_PORTAL_CI] = map.addr.cinh;
+
+	fd = open(QMAN_PORTAL_IRQ_PATH, O_RDONLY);
+	if (fd == -1) {
+		pr_err("QMan irq init failed\n");
+		process_portal_unmap(&map.addr);
+		return -EBUSY;
+	}
+
+	pcfg.is_shared = is_shared;
+	pcfg.node = NULL;
+	pcfg.irq = fd;
+
+	irq_map.type = dpaa_portal_qman;
+	irq_map.portal_cinh = map.addr.cinh;
+	process_portal_irq_map(fd, &irq_map);
+	return 0;
+}
+
+static int fsl_qman_portal_finish(void)
+{
+	int ret;
+
+	process_portal_irq_unmap(fd);
+
+	ret = process_portal_unmap(&map.addr);
+	if (ret)
+		error(0, ret, "process_portal_unmap()");
+	return ret;
+}
+
+int qman_thread_init(void)
+{
+	/* Convert from contiguous/virtual cpu numbering to real cpu when
+	 * calling into the code that is dependent on the device naming.
+	 */
+	return fsl_qman_portal_init(QBMAN_ANY_PORTAL_IDX, 0);
+}
+
+int qman_thread_finish(void)
+{
+	return fsl_qman_portal_finish();
+}
+
+void qman_thread_irq(void)
+{
+	qbman_invoke_irq(pcfg.irq);
+
+	/* Now we need to uninhibit interrupts. This is the only code outside
+	 * the regular portal driver that manipulates any portal register, so
+	 * rather than breaking that encapsulation I am simply hard-coding the
+	 * offset to the inhibit register here.
+	 */
+	out_be32(pcfg.addr_virt[DPAA_PORTAL_CI] + 0xe0c, 0);
+}
+
+int qman_global_init(void)
+{
+	const struct device_node *dt_node;
+	int ret = 0;
+	size_t lenp;
+	const u32 *chanid;
+	static int ccsr_map_fd;
+	const uint32_t *qman_addr;
+	uint64_t phys_addr;
+	uint64_t regs_size;
+	const u32 *clk;
+
+	static int done;
+
+	if (done)
+		return -EBUSY;
+
+	/* Use the device-tree to determine IP revision until something better
+	 * is devised.
+	 */
+	dt_node = of_find_compatible_node(NULL, NULL, "fsl,qman-portal");
+	if (!dt_node) {
+		pr_err("No qman portals available for any CPU\n");
+		return -ENODEV;
+	}
+	if (of_device_is_compatible(dt_node, "fsl,qman-portal-1.0") ||
+	    of_device_is_compatible(dt_node, "fsl,qman-portal-1.0.0"))
+		pr_err("QMan rev1.0 on P4080 rev1 is not supported!\n");
+	else if (of_device_is_compatible(dt_node, "fsl,qman-portal-1.1") ||
+		 of_device_is_compatible(dt_node, "fsl,qman-portal-1.1.0"))
+		qman_ip_rev = QMAN_REV11;
+	else if	(of_device_is_compatible(dt_node, "fsl,qman-portal-1.2") ||
+		 of_device_is_compatible(dt_node, "fsl,qman-portal-1.2.0"))
+		qman_ip_rev = QMAN_REV12;
+	else if (of_device_is_compatible(dt_node, "fsl,qman-portal-2.0") ||
+		 of_device_is_compatible(dt_node, "fsl,qman-portal-2.0.0"))
+		qman_ip_rev = QMAN_REV20;
+	else if (of_device_is_compatible(dt_node, "fsl,qman-portal-3.0.0") ||
+		 of_device_is_compatible(dt_node, "fsl,qman-portal-3.0.1"))
+		qman_ip_rev = QMAN_REV30;
+	else if (of_device_is_compatible(dt_node, "fsl,qman-portal-3.1.0") ||
+		 of_device_is_compatible(dt_node, "fsl,qman-portal-3.1.1") ||
+		of_device_is_compatible(dt_node, "fsl,qman-portal-3.1.2") ||
+		of_device_is_compatible(dt_node, "fsl,qman-portal-3.1.3"))
+		qman_ip_rev = QMAN_REV31;
+	else if (of_device_is_compatible(dt_node, "fsl,qman-portal-3.2.0") ||
+		 of_device_is_compatible(dt_node, "fsl,qman-portal-3.2.1"))
+		qman_ip_rev = QMAN_REV32;
+	else
+		qman_ip_rev = QMAN_REV11;
+
+	if (!qman_ip_rev) {
+		pr_err("Unknown qman portal version\n");
+		return -ENODEV;
+	}
+	if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) {
+		qm_channel_pool1 = QMAN_CHANNEL_POOL1_REV3;
+		qm_channel_caam = QMAN_CHANNEL_CAAM_REV3;
+		qm_channel_pme = QMAN_CHANNEL_PME_REV3;
+	}
+
+	dt_node = of_find_compatible_node(NULL, NULL, "fsl,pool-channel-range");
+	if (!dt_node) {
+		pr_err("No qman pool channel range available\n");
+		return -ENODEV;
+	}
+	chanid = of_get_property(dt_node, "fsl,pool-channel-range", &lenp);
+	if (!chanid) {
+		pr_err("Can not get pool-channel-range property\n");
+		return -EINVAL;
+	}
+
+	/* get ccsr base */
+	dt_node = of_find_compatible_node(NULL, NULL, "fsl,qman");
+	if (!dt_node) {
+		pr_err("No qman device node available\n");
+		return -ENODEV;
+	}
+	qman_addr = of_get_address(dt_node, 0, &regs_size, NULL);
+	if (!qman_addr) {
+		pr_err("of_get_address cannot return qman address\n");
+		return -EINVAL;
+	}
+	phys_addr = of_translate_address(dt_node, qman_addr);
+	if (!phys_addr) {
+		pr_err("of_translate_address failed\n");
+		return -EINVAL;
+	}
+
+	ccsr_map_fd = open("/dev/mem", O_RDWR);
+	if (unlikely(ccsr_map_fd < 0)) {
+		pr_err("Can not open /dev/mem for qman ccsr map\n");
+		return ccsr_map_fd;
+	}
+
+	qman_ccsr_map = mmap(NULL, regs_size, PROT_READ | PROT_WRITE,
+			     MAP_SHARED, ccsr_map_fd, phys_addr);
+	if (qman_ccsr_map == MAP_FAILED) {
+		pr_err("Can not map qman ccsr base\n");
+		return -EINVAL;
+	}
+
+	clk = of_get_property(dt_node, "clock-frequency", NULL);
+	if (!clk)
+		pr_warn("Can't find Qman clock frequency\n");
+	else
+		qman_clk = be32_to_cpu(*clk);
+
+	return ret;
+}
diff --git a/drivers/bus/dpaa/base/qbman/qman_priv.h b/drivers/bus/dpaa/base/qbman/qman_priv.h
new file mode 100644
index 0000000..4a11e40
--- /dev/null
+++ b/drivers/bus/dpaa/base/qbman/qman_priv.h
@@ -0,0 +1,303 @@
+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ *   BSD LICENSE
+ *
+ * Copyright 2008-2016 Freescale Semiconductor Inc.
+ * Copyright 2017 NXP.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __QMAN_PRIV_H
+#define __QMAN_PRIV_H
+
+#include "dpaa_sys.h"
+#include <fsl_qman.h>
+
+/* Congestion Groups */
+/*
+ * This wrapper represents a bit-array for the state of the 256 QMan congestion
+ * groups. Is also used as a *mask* for congestion groups, eg. so we ignore
+ * those that don't concern us. We harness the structure and accessor details
+ * already used in the management command to query congestion groups.
+ */
+struct qman_cgrs {
+	struct __qm_mcr_querycongestion q;
+};
+
+static inline void qman_cgrs_init(struct qman_cgrs *c)
+{
+	memset(c, 0, sizeof(*c));
+}
+
+static inline void qman_cgrs_fill(struct qman_cgrs *c)
+{
+	memset(c, 0xff, sizeof(*c));
+}
+
+static inline int qman_cgrs_get(struct qman_cgrs *c, int num)
+{
+	return QM_MCR_QUERYCONGESTION(&c->q, num);
+}
+
+static inline void qman_cgrs_set(struct qman_cgrs *c, int num)
+{
+	c->q.state[__CGR_WORD(num)] |= (0x80000000 >> __CGR_SHIFT(num));
+}
+
+static inline void qman_cgrs_unset(struct qman_cgrs *c, int num)
+{
+	c->q.state[__CGR_WORD(num)] &= ~(0x80000000 >> __CGR_SHIFT(num));
+}
+
+static inline int qman_cgrs_next(struct qman_cgrs *c, int num)
+{
+	while ((++num < (int)__CGR_NUM) && !qman_cgrs_get(c, num))
+		;
+	return num;
+}
+
+static inline void qman_cgrs_cp(struct qman_cgrs *dest,
+				const struct qman_cgrs *src)
+{
+	memcpy(dest, src, sizeof(*dest));
+}
+
+static inline void qman_cgrs_and(struct qman_cgrs *dest,
+				 const struct qman_cgrs *a,
+				 const struct qman_cgrs *b)
+{
+	int ret;
+	u32 *_d = dest->q.state;
+	const u32 *_a = a->q.state;
+	const u32 *_b = b->q.state;
+
+	for (ret = 0; ret < 8; ret++)
+		*(_d++) = *(_a++) & *(_b++);
+}
+
+static inline void qman_cgrs_xor(struct qman_cgrs *dest,
+				 const struct qman_cgrs *a,
+				 const struct qman_cgrs *b)
+{
+	int ret;
+	u32 *_d = dest->q.state;
+	const u32 *_a = a->q.state;
+	const u32 *_b = b->q.state;
+
+	for (ret = 0; ret < 8; ret++)
+		*(_d++) = *(_a++) ^ *(_b++);
+}
+
+/* used by CCSR and portal interrupt code */
+enum qm_isr_reg {
+	qm_isr_status = 0,
+	qm_isr_enable = 1,
+	qm_isr_disable = 2,
+	qm_isr_inhibit = 3
+};
+
+struct qm_portal_config {
+	/*
+	 * Corenet portal addresses;
+	 * [0]==cache-enabled, [1]==cache-inhibited.
+	 */
+	void __iomem *addr_virt[2];
+	struct device_node *node;
+	/* Allow these to be joined in lists */
+	struct list_head list;
+	/* User-visible portal configuration settings */
+	/* If the caller enables DQRR stashing (and thus wishes to operate the
+	 * portal from only one cpu), this is the logical CPU that the portal
+	 * will stash to. Whether stashing is enabled or not, this setting is
+	 * also used for any "core-affine" portals, ie. default portals
+	 * associated to the corresponding cpu. -1 implies that there is no
+	 * core affinity configured.
+	 */
+	int cpu;
+	/* portal interrupt line */
+	int irq;
+	/* the unique index of this portal */
+	u32 index;
+	/* Is this portal shared? (If so, it has coarser locking and demuxes
+	 * processing on behalf of other CPUs.).
+	 */
+	int is_shared;
+	/* The portal's dedicated channel id, use this value for initialising
+	 * frame queues to target this portal when scheduled.
+	 */
+	u16 channel;
+	/* A mask of which pool channels this portal has dequeue access to
+	 * (using QM_SDQCR_CHANNELS_POOL(n) for the bitmask).
+	 */
+	u32 pools;
+
+};
+
+/* Revision info (for errata and feature handling) */
+#define QMAN_REV11 0x0101
+#define QMAN_REV12 0x0102
+#define QMAN_REV20 0x0200
+#define QMAN_REV30 0x0300
+#define QMAN_REV31 0x0301
+#define QMAN_REV32 0x0302
+extern u16 qman_ip_rev; /* 0 if uninitialised, otherwise QMAN_REVx */
+extern u32 qman_clk;
+
+int qm_set_wpm(int wpm);
+int qm_get_wpm(int *wpm);
+
+struct qman_portal *qman_create_affine_portal(
+			const struct qm_portal_config *config,
+			const struct qman_cgrs *cgrs);
+const struct qm_portal_config *qman_destroy_affine_portal(void);
+
+struct qm_portal_config *qm_get_unused_portal(void);
+struct qm_portal_config *qm_get_unused_portal_idx(uint32_t idx);
+
+void qm_put_unused_portal(struct qm_portal_config *pcfg);
+void qm_set_liodns(struct qm_portal_config *pcfg);
+
+/* This CGR feature is supported by h/w and required by unit-tests and the
+ * debugfs hooks, so is implemented in the driver. However it allows an explicit
+ * corruption of h/w fields by s/w that are usually incorruptible (because the
+ * counters are usually maintained entirely within h/w). As such, we declare
+ * this API internally.
+ */
+int qman_testwrite_cgr(struct qman_cgr *cgr, u64 i_bcnt,
+		       struct qm_mcr_cgrtestwrite *result);
+
+/*   QMan s/w corenet portal, low-level i/face	 */
+
+/*
+ * For Choose one SOURCE. Choose one COUNT. Choose one
+ * dequeue TYPE. Choose TOKEN (8-bit).
+ * If SOURCE == CHANNELS,
+ *   Choose CHANNELS_DEDICATED and/or CHANNELS_POOL(n).
+ *   You can choose DEDICATED_PRECEDENCE if the portal channel should have
+ *   priority.
+ * If SOURCE == SPECIFICWQ,
+ *     Either select the work-queue ID with SPECIFICWQ_WQ(), or select the
+ *     channel (SPECIFICWQ_DEDICATED or SPECIFICWQ_POOL()) and specify the
+ *     work-queue priority (0-7) with SPECIFICWQ_WQ() - either way, you get the
+ *     same value.
+ */
+#define QM_SDQCR_SOURCE_CHANNELS	0x0
+#define QM_SDQCR_SOURCE_SPECIFICWQ	0x40000000
+#define QM_SDQCR_COUNT_EXACT1		0x0
+#define QM_SDQCR_COUNT_UPTO3		0x20000000
+#define QM_SDQCR_DEDICATED_PRECEDENCE	0x10000000
+#define QM_SDQCR_TYPE_MASK		0x03000000
+#define QM_SDQCR_TYPE_NULL		0x0
+#define QM_SDQCR_TYPE_PRIO_QOS		0x01000000
+#define QM_SDQCR_TYPE_ACTIVE_QOS	0x02000000
+#define QM_SDQCR_TYPE_ACTIVE		0x03000000
+#define QM_SDQCR_TOKEN_MASK		0x00ff0000
+#define QM_SDQCR_TOKEN_SET(v)		(((v) & 0xff) << 16)
+#define QM_SDQCR_TOKEN_GET(v)		(((v) >> 16) & 0xff)
+#define QM_SDQCR_CHANNELS_DEDICATED	0x00008000
+#define QM_SDQCR_SPECIFICWQ_MASK	0x000000f7
+#define QM_SDQCR_SPECIFICWQ_DEDICATED	0x00000000
+#define QM_SDQCR_SPECIFICWQ_POOL(n)	((n) << 4)
+#define QM_SDQCR_SPECIFICWQ_WQ(n)	(n)
+
+#define QM_VDQCR_FQID_MASK		0x00ffffff
+#define QM_VDQCR_FQID(n)		((n) & QM_VDQCR_FQID_MASK)
+
+#define QM_EQCR_VERB_VBIT		0x80
+#define QM_EQCR_VERB_CMD_MASK		0x61	/* but only one value; */
+#define QM_EQCR_VERB_CMD_ENQUEUE	0x01
+#define QM_EQCR_VERB_COLOUR_MASK	0x18	/* 4 possible values; */
+#define QM_EQCR_VERB_COLOUR_GREEN	0x00
+#define QM_EQCR_VERB_COLOUR_YELLOW	0x08
+#define QM_EQCR_VERB_COLOUR_RED		0x10
+#define QM_EQCR_VERB_COLOUR_OVERRIDE	0x18
+#define QM_EQCR_VERB_INTERRUPT		0x04	/* on command consumption */
+#define QM_EQCR_VERB_ORP		0x02	/* enable order restoration */
+#define QM_EQCR_DCA_ENABLE		0x80
+#define QM_EQCR_DCA_PARK		0x40
+#define QM_EQCR_DCA_IDXMASK		0x0f	/* "DQRR::idx" goes here */
+#define QM_EQCR_SEQNUM_NESN		0x8000	/* Advance NESN */
+#define QM_EQCR_SEQNUM_NLIS		0x4000	/* More fragments to come */
+#define QM_EQCR_SEQNUM_SEQMASK		0x3fff	/* sequence number goes here */
+#define QM_EQCR_FQID_NULL		0	/* eg. for an ORP seqnum hole */
+
+#define QM_MCC_VERB_VBIT		0x80
+#define QM_MCC_VERB_MASK		0x7f	/* where the verb contains; */
+#define QM_MCC_VERB_INITFQ_PARKED	0x40
+#define QM_MCC_VERB_INITFQ_SCHED	0x41
+#define QM_MCC_VERB_QUERYFQ		0x44
+#define QM_MCC_VERB_QUERYFQ_NP		0x45	/* "non-programmable" fields */
+#define QM_MCC_VERB_QUERYWQ		0x46
+#define QM_MCC_VERB_QUERYWQ_DEDICATED	0x47
+#define QM_MCC_VERB_ALTER_SCHED		0x48	/* Schedule FQ */
+#define QM_MCC_VERB_ALTER_FE		0x49	/* Force Eligible FQ */
+#define QM_MCC_VERB_ALTER_RETIRE	0x4a	/* Retire FQ */
+#define QM_MCC_VERB_ALTER_OOS		0x4b	/* Take FQ out of service */
+#define QM_MCC_VERB_ALTER_FQXON		0x4d	/* FQ XON */
+#define QM_MCC_VERB_ALTER_FQXOFF	0x4e	/* FQ XOFF */
+#define QM_MCC_VERB_INITCGR		0x50
+#define QM_MCC_VERB_MODIFYCGR		0x51
+#define QM_MCC_VERB_CGRTESTWRITE	0x52
+#define QM_MCC_VERB_QUERYCGR		0x58
+#define QM_MCC_VERB_QUERYCONGESTION	0x59
+
+/*
+ * Used by all portal interrupt registers except 'inhibit'
+ * Channels with frame availability
+ */
+#define QM_PIRQ_DQAVAIL	0x0000ffff
+
+/* The DQAVAIL interrupt fields break down into these bits; */
+#define QM_DQAVAIL_PORTAL	0x8000		/* Portal channel */
+#define QM_DQAVAIL_POOL(n)	(0x8000 >> (n))	/* Pool channel, n==[1..15] */
+#define QM_DQAVAIL_MASK		0xffff
+/* This mask contains all the "irqsource" bits visible to API users */
+#define QM_PIRQ_VISIBLE	(QM_PIRQ_SLOW | QM_PIRQ_DQRI)
+
+/* These are qm_<reg>_<verb>(). So for example, qm_disable_write() means "write
+ * the disable register" rather than "disable the ability to write".
+ */
+#define qm_isr_status_read(qm)		__qm_isr_read(qm, qm_isr_status)
+#define qm_isr_status_clear(qm, m)	__qm_isr_write(qm, qm_isr_status, m)
+#define qm_isr_enable_read(qm)		__qm_isr_read(qm, qm_isr_enable)
+#define qm_isr_enable_write(qm, v)	__qm_isr_write(qm, qm_isr_enable, v)
+#define qm_isr_disable_read(qm)		__qm_isr_read(qm, qm_isr_disable)
+#define qm_isr_disable_write(qm, v)	__qm_isr_write(qm, qm_isr_disable, v)
+/* TODO: unfortunate name-clash here, reword? */
+#define qm_isr_inhibit(qm)		__qm_isr_write(qm, qm_isr_inhibit, 1)
+#define qm_isr_uninhibit(qm)		__qm_isr_write(qm, qm_isr_inhibit, 0)
+
+#define QMAN_PORTAL_IRQ_PATH "/dev/fsl-usdpaa-irq"
+
+#endif /* _QMAN_PRIV_H */
diff --git a/drivers/bus/dpaa/include/fsl_qman.h b/drivers/bus/dpaa/include/fsl_qman.h
new file mode 100644
index 0000000..784fe60
--- /dev/null
+++ b/drivers/bus/dpaa/include/fsl_qman.h
@@ -0,0 +1,1254 @@
+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ *   BSD LICENSE
+ *
+ * Copyright 2008-2012 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __FSL_QMAN_H
+#define __FSL_QMAN_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <dpaa_rbtree.h>
+
+/* Last updated for v00.800 of the BG */
+
+/* Hardware constants */
+#define QM_CHANNEL_SWPORTAL0 0
+#define QMAN_CHANNEL_POOL1 0x21
+#define QMAN_CHANNEL_CAAM 0x80
+#define QMAN_CHANNEL_PME 0xa0
+#define QMAN_CHANNEL_POOL1_REV3 0x401
+#define QMAN_CHANNEL_CAAM_REV3 0x840
+#define QMAN_CHANNEL_PME_REV3 0x860
+extern u16 qm_channel_pool1;
+extern u16 qm_channel_caam;
+extern u16 qm_channel_pme;
+enum qm_dc_portal {
+	qm_dc_portal_fman0 = 0,
+	qm_dc_portal_fman1 = 1,
+	qm_dc_portal_caam = 2,
+	qm_dc_portal_pme = 3
+};
+
+/* Portal processing (interrupt) sources */
+#define QM_PIRQ_CCSCI	0x00200000	/* CEETM Congestion State Change */
+#define QM_PIRQ_CSCI	0x00100000	/* Congestion State Change */
+#define QM_PIRQ_EQCI	0x00080000	/* Enqueue Command Committed */
+#define QM_PIRQ_EQRI	0x00040000	/* EQCR Ring (below threshold) */
+#define QM_PIRQ_DQRI	0x00020000	/* DQRR Ring (non-empty) */
+#define QM_PIRQ_MRI	0x00010000	/* MR Ring (non-empty) */
+/*
+ * This mask contains all the interrupt sources that need handling except DQRI,
+ * ie. that if present should trigger slow-path processing.
+ */
+#define QM_PIRQ_SLOW	(QM_PIRQ_CSCI | QM_PIRQ_EQCI | QM_PIRQ_EQRI | \
+			QM_PIRQ_MRI | QM_PIRQ_CCSCI)
+
+/* For qman_static_dequeue_*** APIs */
+#define QM_SDQCR_CHANNELS_POOL_MASK	0x00007fff
+/* for n in [1,15] */
+#define QM_SDQCR_CHANNELS_POOL(n)	(0x00008000 >> (n))
+/* for conversion from n of qm_channel */
+static inline u32 QM_SDQCR_CHANNELS_POOL_CONV(u16 channel)
+{
+	return QM_SDQCR_CHANNELS_POOL(channel + 1 - qm_channel_pool1);
+}
+
+/* For qman_volatile_dequeue(); Choose one PRECEDENCE. EXACT is optional. Use
+ * NUMFRAMES(n) (6-bit) or NUMFRAMES_TILLEMPTY to fill in the frame-count. Use
+ * FQID(n) to fill in the frame queue ID.
+ */
+#define QM_VDQCR_PRECEDENCE_VDQCR	0x0
+#define QM_VDQCR_PRECEDENCE_SDQCR	0x80000000
+#define QM_VDQCR_EXACT			0x40000000
+#define QM_VDQCR_NUMFRAMES_MASK		0x3f000000
+#define QM_VDQCR_NUMFRAMES_SET(n)	(((n) & 0x3f) << 24)
+#define QM_VDQCR_NUMFRAMES_GET(n)	(((n) >> 24) & 0x3f)
+#define QM_VDQCR_NUMFRAMES_TILLEMPTY	QM_VDQCR_NUMFRAMES_SET(0)
+
+/* --- QMan data structures (and associated constants) --- */
+
+/* Represents s/w corenet portal mapped data structures */
+struct qm_eqcr_entry;	/* EQCR (EnQueue Command Ring) entries */
+struct qm_dqrr_entry;	/* DQRR (DeQueue Response Ring) entries */
+struct qm_mr_entry;	/* MR (Message Ring) entries */
+struct qm_mc_command;	/* MC (Management Command) command */
+struct qm_mc_result;	/* MC result */
+
+#define QM_FD_FORMAT_SG		0x4
+#define QM_FD_FORMAT_LONG	0x2
+#define QM_FD_FORMAT_COMPOUND	0x1
+enum qm_fd_format {
+	/*
+	 * 'contig' implies a contiguous buffer, whereas 'sg' implies a
+	 * scatter-gather table. 'big' implies a 29-bit length with no offset
+	 * field, otherwise length is 20-bit and offset is 9-bit. 'compound'
+	 * implies a s/g-like table, where each entry itself represents a frame
+	 * (contiguous or scatter-gather) and the 29-bit "length" is
+	 * interpreted purely for congestion calculations, ie. a "congestion
+	 * weight".
+	 */
+	qm_fd_contig = 0,
+	qm_fd_contig_big = QM_FD_FORMAT_LONG,
+	qm_fd_sg = QM_FD_FORMAT_SG,
+	qm_fd_sg_big = QM_FD_FORMAT_SG | QM_FD_FORMAT_LONG,
+	qm_fd_compound = QM_FD_FORMAT_COMPOUND
+};
+
+/* Capitalised versions are un-typed but can be used in static expressions */
+#define QM_FD_CONTIG	0
+#define QM_FD_CONTIG_BIG QM_FD_FORMAT_LONG
+#define QM_FD_SG	QM_FD_FORMAT_SG
+#define QM_FD_SG_BIG	(QM_FD_FORMAT_SG | QM_FD_FORMAT_LONG)
+#define QM_FD_COMPOUND	QM_FD_FORMAT_COMPOUND
+
+/* "Frame Descriptor (FD)" */
+struct qm_fd {
+	union {
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u8 dd:2;	/* dynamic debug */
+			u8 liodn_offset:6;
+			u8 bpid:8;	/* Buffer Pool ID */
+			u8 eliodn_offset:4;
+			u8 __reserved:4;
+			u8 addr_hi;	/* high 8-bits of 40-bit address */
+			u32 addr_lo;	/* low 32-bits of 40-bit address */
+#else
+			u8 liodn_offset:6;
+			u8 dd:2;	/* dynamic debug */
+			u8 bpid:8;	/* Buffer Pool ID */
+			u8 __reserved:4;
+			u8 eliodn_offset:4;
+			u8 addr_hi;	/* high 8-bits of 40-bit address */
+			u32 addr_lo;	/* low 32-bits of 40-bit address */
+#endif
+		};
+		struct {
+			u64 __notaddress:24;
+			/* More efficient address accessor */
+			u64 addr:40;
+		};
+		u64 opaque_addr;
+	};
+	/* The 'format' field indicates the interpretation of the remaining 29
+	 * bits of the 32-bit word. For packing reasons, it is duplicated in the
+	 * other union elements. Note, union'd structs are difficult to use with
+	 * static initialisation under gcc, in which case use the "opaque" form
+	 * with one of the macros.
+	 */
+	union {
+		/* For easier/faster copying of this part of the fd (eg. from a
+		 * DQRR entry to an EQCR entry) copy 'opaque'
+		 */
+		u32 opaque;
+		/* If 'format' is _contig or _sg, 20b length and 9b offset */
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			enum qm_fd_format format:3;
+			u16 offset:9;
+			u32 length20:20;
+#else
+			u32 length20:20;
+			u16 offset:9;
+			enum qm_fd_format format:3;
+#endif
+		};
+		/* If 'format' is _contig_big or _sg_big, 29b length */
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			enum qm_fd_format _format1:3;
+			u32 length29:29;
+#else
+			u32 length29:29;
+			enum qm_fd_format _format1:3;
+#endif
+		};
+		/* If 'format' is _compound, 29b "congestion weight" */
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			enum qm_fd_format _format2:3;
+			u32 cong_weight:29;
+#else
+			u32 cong_weight:29;
+			enum qm_fd_format _format2:3;
+#endif
+		};
+	};
+	union {
+		u32 cmd;
+		u32 status;
+	};
+} __attribute__((aligned(8)));
+#define QM_FD_DD_NULL		0x00
+#define QM_FD_PID_MASK		0x3f
+static inline u64 qm_fd_addr_get64(const struct qm_fd *fd)
+{
+	return fd->addr;
+}
+
+static inline dma_addr_t qm_fd_addr(const struct qm_fd *fd)
+{
+	return (dma_addr_t)fd->addr;
+}
+
+/* Macro, so we compile better if 'v' isn't always 64-bit */
+#define qm_fd_addr_set64(fd, v) \
+	do { \
+		struct qm_fd *__fd931 = (fd); \
+		__fd931->addr = v; \
+	} while (0)
+
+/* Scatter/Gather table entry */
+struct qm_sg_entry {
+	union {
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u8 __reserved1[3];
+			u8 addr_hi;	/* high 8-bits of 40-bit address */
+			u32 addr_lo;	/* low 32-bits of 40-bit address */
+#else
+			u32 addr_lo;	/* low 32-bits of 40-bit address */
+			u8 addr_hi;	/* high 8-bits of 40-bit address */
+			u8 __reserved1[3];
+#endif
+		};
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u64 __notaddress:24;
+			u64 addr:40;
+#else
+			u64 addr:40;
+			u64 __notaddress:24;
+#endif
+		};
+		u64 opaque;
+	};
+	union {
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u32 extension:1;	/* Extension bit */
+			u32 final:1;		/* Final bit */
+			u32 length:30;
+#else
+			u32 length:30;
+			u32 final:1;		/* Final bit */
+			u32 extension:1;	/* Extension bit */
+#endif
+		};
+		u32 val;
+	};
+	u8 __reserved2;
+	u8 bpid;
+	union {
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u16 __reserved3:3;
+			u16 offset:13;
+#else
+			u16 offset:13;
+			u16 __reserved3:3;
+#endif
+		};
+		u16 val_off;
+	};
+} __packed;
+static inline u64 qm_sg_entry_get64(const struct qm_sg_entry *sg)
+{
+	return sg->addr;
+}
+
+static inline dma_addr_t qm_sg_addr(const struct qm_sg_entry *sg)
+{
+	return (dma_addr_t)sg->addr;
+}
+
+/* Macro, so we compile better if 'v' isn't always 64-bit */
+#define qm_sg_entry_set64(sg, v) \
+	do { \
+		struct qm_sg_entry *__sg931 = (sg); \
+		__sg931->addr = v; \
+	} while (0)
+
+/* See 1.5.8.1: "Enqueue Command" */
+struct qm_eqcr_entry {
+	u8 __dont_write_directly__verb;
+	u8 dca;
+	u16 seqnum;
+	u32 orp;	/* 24-bit */
+	u32 fqid;	/* 24-bit */
+	u32 tag;
+	struct qm_fd fd;
+	u8 __reserved3[32];
+} __packed;
+
+
+/* "Frame Dequeue Response" */
+struct qm_dqrr_entry {
+	u8 verb;
+	u8 stat;
+	u16 seqnum;	/* 15-bit */
+	u8 tok;
+	u8 __reserved2[3];
+	u32 fqid;	/* 24-bit */
+	u32 contextB;
+	struct qm_fd fd;
+	u8 __reserved4[32];
+};
+
+#define QM_DQRR_VERB_VBIT		0x80
+#define QM_DQRR_VERB_MASK		0x7f	/* where the verb contains; */
+#define QM_DQRR_VERB_FRAME_DEQUEUE	0x60	/* "this format" */
+#define QM_DQRR_STAT_FQ_EMPTY		0x80	/* FQ empty */
+#define QM_DQRR_STAT_FQ_HELDACTIVE	0x40	/* FQ held active */
+#define QM_DQRR_STAT_FQ_FORCEELIGIBLE	0x20	/* FQ was force-eligible'd */
+#define QM_DQRR_STAT_FD_VALID		0x10	/* has a non-NULL FD */
+#define QM_DQRR_STAT_UNSCHEDULED	0x02	/* Unscheduled dequeue */
+#define QM_DQRR_STAT_DQCR_EXPIRED	0x01	/* VDQCR or PDQCR expired*/
+
+
+/* "ERN Message Response" */
+/* "FQ State Change Notification" */
+struct qm_mr_entry {
+	u8 verb;
+	union {
+		struct {
+			u8 dca;
+			u16 seqnum;
+			u8 rc;		/* Rejection Code */
+			u32 orp:24;
+			u32 fqid;	/* 24-bit */
+			u32 tag;
+			struct qm_fd fd;
+		} __packed ern;
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u8 colour:2;	/* See QM_MR_DCERN_COLOUR_* */
+			u8 __reserved1:4;
+			enum qm_dc_portal portal:2;
+#else
+			enum qm_dc_portal portal:3;
+			u8 __reserved1:3;
+			u8 colour:2;	/* See QM_MR_DCERN_COLOUR_* */
+#endif
+			u16 __reserved2;
+			u8 rc;		/* Rejection Code */
+			u32 __reserved3:24;
+			u32 fqid;	/* 24-bit */
+			u32 tag;
+			struct qm_fd fd;
+		} __packed dcern;
+		struct {
+			u8 fqs;		/* Frame Queue Status */
+			u8 __reserved1[6];
+			u32 fqid;	/* 24-bit */
+			u32 contextB;
+			u8 __reserved2[16];
+		} __packed fq;		/* FQRN/FQRNI/FQRL/FQPN */
+	};
+	u8 __reserved2[32];
+} __packed;
+#define QM_MR_VERB_VBIT			0x80
+/*
+ * ERNs originating from direct-connect portals ("dcern") use 0x20 as a verb
+ * which would be invalid as a s/w enqueue verb. A s/w ERN can be distinguished
+ * from the other MR types by noting if the 0x20 bit is unset.
+ */
+#define QM_MR_VERB_TYPE_MASK		0x27
+#define QM_MR_VERB_DC_ERN		0x20
+#define QM_MR_VERB_FQRN			0x21
+#define QM_MR_VERB_FQRNI		0x22
+#define QM_MR_VERB_FQRL			0x23
+#define QM_MR_VERB_FQPN			0x24
+#define QM_MR_RC_MASK			0xf0	/* contains one of; */
+#define QM_MR_RC_CGR_TAILDROP		0x00
+#define QM_MR_RC_WRED			0x10
+#define QM_MR_RC_ERROR			0x20
+#define QM_MR_RC_ORPWINDOW_EARLY	0x30
+#define QM_MR_RC_ORPWINDOW_LATE		0x40
+#define QM_MR_RC_FQ_TAILDROP		0x50
+#define QM_MR_RC_ORPWINDOW_RETIRED	0x60
+#define QM_MR_RC_ORP_ZERO		0x70
+#define QM_MR_FQS_ORLPRESENT		0x02	/* ORL fragments to come */
+#define QM_MR_FQS_NOTEMPTY		0x01	/* FQ has enqueued frames */
+#define QM_MR_DCERN_COLOUR_GREEN	0x00
+#define QM_MR_DCERN_COLOUR_YELLOW	0x01
+#define QM_MR_DCERN_COLOUR_RED		0x02
+#define QM_MR_DCERN_COLOUR_OVERRIDE	0x03
+/*
+ * An identical structure of FQD fields is present in the "Init FQ" command and
+ * the "Query FQ" result, it's suctioned out into the "struct qm_fqd" type.
+ * Within that, the 'stashing' and 'taildrop' pieces are also factored out, the
+ * latter has two inlines to assist with converting to/from the mant+exp
+ * representation.
+ */
+struct qm_fqd_stashing {
+	/* See QM_STASHING_EXCL_<...> */
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	u8 exclusive;
+	u8 __reserved1:2;
+	/* Numbers of cachelines */
+	u8 annotation_cl:2;
+	u8 data_cl:2;
+	u8 context_cl:2;
+#else
+	u8 context_cl:2;
+	u8 data_cl:2;
+	u8 annotation_cl:2;
+	u8 __reserved1:2;
+	u8 exclusive;
+#endif
+} __packed;
+struct qm_fqd_taildrop {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	u16 __reserved1:3;
+	u16 mant:8;
+	u16 exp:5;
+#else
+	u16 exp:5;
+	u16 mant:8;
+	u16 __reserved1:3;
+#endif
+} __packed;
+struct qm_fqd_oac {
+	/* "Overhead Accounting Control", see QM_OAC_<...> */
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	u8 oac:2; /* "Overhead Accounting Control" */
+	u8 __reserved1:6;
+#else
+	u8 __reserved1:6;
+	u8 oac:2; /* "Overhead Accounting Control" */
+#endif
+	/* Two's-complement value (-128 to +127) */
+	signed char oal; /* "Overhead Accounting Length" */
+} __packed;
+struct qm_fqd {
+	union {
+		u8 orpc;
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u8 __reserved1:2;
+			u8 orprws:3;
+			u8 oa:1;
+			u8 olws:2;
+#else
+			u8 olws:2;
+			u8 oa:1;
+			u8 orprws:3;
+			u8 __reserved1:2;
+#endif
+		} __packed;
+	};
+	u8 cgid;
+	u16 fq_ctrl;	/* See QM_FQCTRL_<...> */
+	union {
+		u16 dest_wq;
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u16 channel:13; /* qm_channel */
+			u16 wq:3;
+#else
+			u16 wq:3;
+			u16 channel:13; /* qm_channel */
+#endif
+		} __packed dest;
+	};
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	u16 __reserved2:1;
+	u16 ics_cred:15;
+#else
+	u16 __reserved2:1;
+	u16 ics_cred:15;
+#endif
+	/*
+	 * For "Initialize Frame Queue" commands, the write-enable mask
+	 * determines whether 'td' or 'oac_init' is observed. For query
+	 * commands, this field is always 'td', and 'oac_query' (below) reflects
+	 * the Overhead ACcounting values.
+	 */
+	union {
+		uint16_t opaque_td;
+		struct qm_fqd_taildrop td;
+		struct qm_fqd_oac oac_init;
+	};
+	u32 context_b;
+	union {
+		/* Treat it as 64-bit opaque */
+		u64 opaque;
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u32 hi;
+			u32 lo;
+#else
+			u32 lo;
+			u32 hi;
+#endif
+		};
+		/* Treat it as s/w portal stashing config */
+		/* see "FQD Context_A field used for [...]" */
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			struct qm_fqd_stashing stashing;
+			/*
+			 * 48-bit address of FQ context to
+			 * stash, must be cacheline-aligned
+			 */
+			u16 context_hi;
+			u32 context_lo;
+#else
+			u32 context_lo;
+			u16 context_hi;
+			struct qm_fqd_stashing stashing;
+#endif
+		} __packed;
+	} context_a;
+	struct qm_fqd_oac oac_query;
+} __packed;
+/* 64-bit converters for context_hi/lo */
+static inline u64 qm_fqd_stashing_get64(const struct qm_fqd *fqd)
+{
+	return ((u64)fqd->context_a.context_hi << 32) |
+		(u64)fqd->context_a.context_lo;
+}
+
+static inline dma_addr_t qm_fqd_stashing_addr(const struct qm_fqd *fqd)
+{
+	return (dma_addr_t)qm_fqd_stashing_get64(fqd);
+}
+
+static inline u64 qm_fqd_context_a_get64(const struct qm_fqd *fqd)
+{
+	return ((u64)fqd->context_a.hi << 32) |
+		(u64)fqd->context_a.lo;
+}
+
+static inline void qm_fqd_stashing_set64(struct qm_fqd *fqd, u64 addr)
+{
+		fqd->context_a.context_hi = upper_32_bits(addr);
+		fqd->context_a.context_lo = lower_32_bits(addr);
+}
+
+static inline void qm_fqd_context_a_set64(struct qm_fqd *fqd, u64 addr)
+{
+	fqd->context_a.hi = upper_32_bits(addr);
+	fqd->context_a.lo = lower_32_bits(addr);
+}
+
+/* convert a threshold value into mant+exp representation */
+static inline int qm_fqd_taildrop_set(struct qm_fqd_taildrop *td, u32 val,
+				      int roundup)
+{
+	u32 e = 0;
+	int oddbit = 0;
+
+	if (val > 0xe0000000)
+		return -ERANGE;
+	while (val > 0xff) {
+		oddbit = val & 1;
+		val >>= 1;
+		e++;
+		if (roundup && oddbit)
+			val++;
+	}
+	td->exp = e;
+	td->mant = val;
+	return 0;
+}
+
+/* and the other direction */
+static inline u32 qm_fqd_taildrop_get(const struct qm_fqd_taildrop *td)
+{
+	return (u32)td->mant << td->exp;
+}
+
+
+/* See "Frame Queue Descriptor (FQD)" */
+/* Frame Queue Descriptor (FQD) field 'fq_ctrl' uses these constants */
+#define QM_FQCTRL_MASK		0x07ff	/* 'fq_ctrl' flags; */
+#define QM_FQCTRL_CGE		0x0400	/* Congestion Group Enable */
+#define QM_FQCTRL_TDE		0x0200	/* Tail-Drop Enable */
+#define QM_FQCTRL_ORP		0x0100	/* ORP Enable */
+#define QM_FQCTRL_CTXASTASHING	0x0080	/* Context-A stashing */
+#define QM_FQCTRL_CPCSTASH	0x0040	/* CPC Stash Enable */
+#define QM_FQCTRL_FORCESFDR	0x0008	/* High-priority SFDRs */
+#define QM_FQCTRL_AVOIDBLOCK	0x0004	/* Don't block active */
+#define QM_FQCTRL_HOLDACTIVE	0x0002	/* Hold active in portal */
+#define QM_FQCTRL_PREFERINCACHE	0x0001	/* Aggressively cache FQD */
+#define QM_FQCTRL_LOCKINCACHE	QM_FQCTRL_PREFERINCACHE /* older naming */
+
+/* See "FQD Context_A field used for [...] */
+/* Frame Queue Descriptor (FQD) field 'CONTEXT_A' uses these constants */
+#define QM_STASHING_EXCL_ANNOTATION	0x04
+#define QM_STASHING_EXCL_DATA		0x02
+#define QM_STASHING_EXCL_CTX		0x01
+
+/* See "Intra Class Scheduling" */
+/* FQD field 'OAC' (Overhead ACcounting) uses these constants */
+#define QM_OAC_ICS		0x2 /* Accounting for Intra-Class Scheduling */
+#define QM_OAC_CG		0x1 /* Accounting for Congestion Groups */
+
+/*
+ * This struct represents the 32-bit "WR_PARM_[GYR]" parameters in CGR fields
+ * and associated commands/responses. The WRED parameters are calculated from
+ * these fields as follows;
+ *   MaxTH = MA * (2 ^ Mn)
+ *   Slope = SA / (2 ^ Sn)
+ *    MaxP = 4 * (Pn + 1)
+ */
+struct qm_cgr_wr_parm {
+	union {
+		u32 word;
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u32 MA:8;
+			u32 Mn:5;
+			u32 SA:7; /* must be between 64-127 */
+			u32 Sn:6;
+			u32 Pn:6;
+#else
+			u32 Pn:6;
+			u32 Sn:6;
+			u32 SA:7; /* must be between 64-127 */
+			u32 Mn:5;
+			u32 MA:8;
+#endif
+		} __packed;
+	};
+} __packed;
+/*
+ * This struct represents the 13-bit "CS_THRES" CGR field. In the corresponding
+ * management commands, this is padded to a 16-bit structure field, so that's
+ * how we represent it here. The congestion state threshold is calculated from
+ * these fields as follows;
+ *   CS threshold = TA * (2 ^ Tn)
+ */
+struct qm_cgr_cs_thres {
+	union {
+		u16 hword;
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u16 __reserved:3;
+			u16 TA:8;
+			u16 Tn:5;
+#else
+			u16 Tn:5;
+			u16 TA:8;
+			u16 __reserved:3;
+#endif
+		} __packed;
+	};
+} __packed;
+/*
+ * This identical structure of CGR fields is present in the "Init/Modify CGR"
+ * commands and the "Query CGR" result. It's suctioned out here into its own
+ * struct.
+ */
+struct __qm_mc_cgr {
+	struct qm_cgr_wr_parm wr_parm_g;
+	struct qm_cgr_wr_parm wr_parm_y;
+	struct qm_cgr_wr_parm wr_parm_r;
+	u8 wr_en_g;	/* boolean, use QM_CGR_EN */
+	u8 wr_en_y;	/* boolean, use QM_CGR_EN */
+	u8 wr_en_r;	/* boolean, use QM_CGR_EN */
+	u8 cscn_en;	/* boolean, use QM_CGR_EN */
+	union {
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u16 cscn_targ_upd_ctrl; /* use QM_CSCN_TARG_UDP_ */
+			u16 cscn_targ_dcp_low;  /* CSCN_TARG_DCP low-16bits */
+#else
+			u16 cscn_targ_dcp_low;  /* CSCN_TARG_DCP low-16bits */
+			u16 cscn_targ_upd_ctrl; /* use QM_CSCN_TARG_UDP_ */
+#endif
+		};
+		u32 cscn_targ;	/* use QM_CGR_TARG_* */
+	};
+	u8 cstd_en;	/* boolean, use QM_CGR_EN */
+	u8 cs;		/* boolean, only used in query response */
+	union {
+		struct qm_cgr_cs_thres cs_thres;
+		/* use qm_cgr_cs_thres_set64() */
+		u16 __cs_thres;
+	};
+	u8 mode;	/* QMAN_CGR_MODE_FRAME not supported in rev1.0 */
+} __packed;
+#define QM_CGR_EN		0x01 /* For wr_en_*, cscn_en, cstd_en */
+#define QM_CGR_TARG_UDP_CTRL_WRITE_BIT	0x8000 /* value written to portal bit*/
+#define QM_CGR_TARG_UDP_CTRL_DCP	0x4000 /* 0: SWP, 1: DCP */
+#define QM_CGR_TARG_PORTAL(n)	(0x80000000 >> (n)) /* s/w portal, 0-9 */
+#define QM_CGR_TARG_FMAN0	0x00200000 /* direct-connect portal: fman0 */
+#define QM_CGR_TARG_FMAN1	0x00100000 /*			   : fman1 */
+/* Convert CGR thresholds to/from "cs_thres" format */
+static inline u64 qm_cgr_cs_thres_get64(const struct qm_cgr_cs_thres *th)
+{
+	return (u64)th->TA << th->Tn;
+}
+
+static inline int qm_cgr_cs_thres_set64(struct qm_cgr_cs_thres *th, u64 val,
+					int roundup)
+{
+	u32 e = 0;
+	int oddbit = 0;
+
+	while (val > 0xff) {
+		oddbit = val & 1;
+		val >>= 1;
+		e++;
+		if (roundup && oddbit)
+			val++;
+	}
+	th->Tn = e;
+	th->TA = val;
+	return 0;
+}
+
+/* See 1.5.8.5.1: "Initialize FQ" */
+/* See 1.5.8.5.2: "Query FQ" */
+/* See 1.5.8.5.3: "Query FQ Non-Programmable Fields" */
+/* See 1.5.8.5.4: "Alter FQ State Commands " */
+/* See 1.5.8.6.1: "Initialize/Modify CGR" */
+/* See 1.5.8.6.2: "CGR Test Write" */
+/* See 1.5.8.6.3: "Query CGR" */
+/* See 1.5.8.6.4: "Query Congestion Group State" */
+struct qm_mcc_initfq {
+	u8 __reserved1;
+	u16 we_mask;	/* Write Enable Mask */
+	u32 fqid;	/* 24-bit */
+	u16 count;	/* Initialises 'count+1' FQDs */
+	struct qm_fqd fqd; /* the FQD fields go here */
+	u8 __reserved3[30];
+} __packed;
+struct qm_mcc_queryfq {
+	u8 __reserved1[3];
+	u32 fqid;	/* 24-bit */
+	u8 __reserved2[56];
+} __packed;
+struct qm_mcc_queryfq_np {
+	u8 __reserved1[3];
+	u32 fqid;	/* 24-bit */
+	u8 __reserved2[56];
+} __packed;
+struct qm_mcc_alterfq {
+	u8 __reserved1[3];
+	u32 fqid;	/* 24-bit */
+	u8 __reserved2;
+	u8 count;	/* number of consecutive FQID */
+	u8 __reserved3[10];
+	u32 context_b;	/* frame queue context b */
+	u8 __reserved4[40];
+} __packed;
+struct qm_mcc_initcgr {
+	u8 __reserved1;
+	u16 we_mask;	/* Write Enable Mask */
+	struct __qm_mc_cgr cgr;	/* CGR fields */
+	u8 __reserved2[2];
+	u8 cgid;
+	u8 __reserved4[32];
+} __packed;
+struct qm_mcc_cgrtestwrite {
+	u8 __reserved1[2];
+	u8 i_bcnt_hi:8;/* high 8-bits of 40-bit "Instant" */
+	u32 i_bcnt_lo;	/* low 32-bits of 40-bit */
+	u8 __reserved2[23];
+	u8 cgid;
+	u8 __reserved3[32];
+} __packed;
+struct qm_mcc_querycgr {
+	u8 __reserved1[30];
+	u8 cgid;
+	u8 __reserved2[32];
+} __packed;
+struct qm_mcc_querycongestion {
+	u8 __reserved[63];
+} __packed;
+struct qm_mcc_querywq {
+	u8 __reserved;
+	/* select channel if verb != QUERYWQ_DEDICATED */
+	union {
+		u16 channel_wq; /* ignores wq (3 lsbits) */
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u16 id:13; /* qm_channel */
+			u16 __reserved1:3;
+#else
+			u16 __reserved1:3;
+			u16 id:13; /* qm_channel */
+#endif
+		} __packed channel;
+	};
+	u8 __reserved2[60];
+} __packed;
+
+struct qm_mc_command {
+	u8 __dont_write_directly__verb;
+	union {
+		struct qm_mcc_initfq initfq;
+		struct qm_mcc_queryfq queryfq;
+		struct qm_mcc_queryfq_np queryfq_np;
+		struct qm_mcc_alterfq alterfq;
+		struct qm_mcc_initcgr initcgr;
+		struct qm_mcc_cgrtestwrite cgrtestwrite;
+		struct qm_mcc_querycgr querycgr;
+		struct qm_mcc_querycongestion querycongestion;
+		struct qm_mcc_querywq querywq;
+	};
+} __packed;
+
+/* INITFQ-specific flags */
+#define QM_INITFQ_WE_MASK		0x01ff	/* 'Write Enable' flags; */
+#define QM_INITFQ_WE_OAC		0x0100
+#define QM_INITFQ_WE_ORPC		0x0080
+#define QM_INITFQ_WE_CGID		0x0040
+#define QM_INITFQ_WE_FQCTRL		0x0020
+#define QM_INITFQ_WE_DESTWQ		0x0010
+#define QM_INITFQ_WE_ICSCRED		0x0008
+#define QM_INITFQ_WE_TDTHRESH		0x0004
+#define QM_INITFQ_WE_CONTEXTB		0x0002
+#define QM_INITFQ_WE_CONTEXTA		0x0001
+/* INITCGR/MODIFYCGR-specific flags */
+#define QM_CGR_WE_MASK			0x07ff	/* 'Write Enable Mask'; */
+#define QM_CGR_WE_WR_PARM_G		0x0400
+#define QM_CGR_WE_WR_PARM_Y		0x0200
+#define QM_CGR_WE_WR_PARM_R		0x0100
+#define QM_CGR_WE_WR_EN_G		0x0080
+#define QM_CGR_WE_WR_EN_Y		0x0040
+#define QM_CGR_WE_WR_EN_R		0x0020
+#define QM_CGR_WE_CSCN_EN		0x0010
+#define QM_CGR_WE_CSCN_TARG		0x0008
+#define QM_CGR_WE_CSTD_EN		0x0004
+#define QM_CGR_WE_CS_THRES		0x0002
+#define QM_CGR_WE_MODE			0x0001
+
+struct qm_mcr_initfq {
+	u8 __reserved1[62];
+} __packed;
+struct qm_mcr_queryfq {
+	u8 __reserved1[8];
+	struct qm_fqd fqd;	/* the FQD fields are here */
+	u8 __reserved2[30];
+} __packed;
+struct qm_mcr_queryfq_np {
+	u8 __reserved1;
+	u8 state;	/* QM_MCR_NP_STATE_*** */
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	u8 __reserved2;
+	u32 fqd_link:24;
+	u16 __reserved3:2;
+	u16 odp_seq:14;
+	u16 __reserved4:2;
+	u16 orp_nesn:14;
+	u16 __reserved5:1;
+	u16 orp_ea_hseq:15;
+	u16 __reserved6:1;
+	u16 orp_ea_tseq:15;
+	u8 __reserved7;
+	u32 orp_ea_hptr:24;
+	u8 __reserved8;
+	u32 orp_ea_tptr:24;
+	u8 __reserved9;
+	u32 pfdr_hptr:24;
+	u8 __reserved10;
+	u32 pfdr_tptr:24;
+	u8 __reserved11[5];
+	u8 __reserved12:7;
+	u8 is:1;
+	u16 ics_surp;
+	u32 byte_cnt;
+	u8 __reserved13;
+	u32 frm_cnt:24;
+	u32 __reserved14;
+	u16 ra1_sfdr;	/* QM_MCR_NP_RA1_*** */
+	u16 ra2_sfdr;	/* QM_MCR_NP_RA2_*** */
+	u16 __reserved15;
+	u16 od1_sfdr;	/* QM_MCR_NP_OD1_*** */
+	u16 od2_sfdr;	/* QM_MCR_NP_OD2_*** */
+	u16 od3_sfdr;	/* QM_MCR_NP_OD3_*** */
+#else
+	u8 __reserved2;
+	u32 fqd_link:24;
+
+	u16 odp_seq:14;
+	u16 __reserved3:2;
+
+	u16 orp_nesn:14;
+	u16 __reserved4:2;
+
+	u16 orp_ea_hseq:15;
+	u16 __reserved5:1;
+
+	u16 orp_ea_tseq:15;
+	u16 __reserved6:1;
+
+	u8 __reserved7;
+	u32 orp_ea_hptr:24;
+
+	u8 __reserved8;
+	u32 orp_ea_tptr:24;
+
+	u8 __reserved9;
+	u32 pfdr_hptr:24;
+
+	u8 __reserved10;
+	u32 pfdr_tptr:24;
+
+	u8 __reserved11[5];
+	u8 is:1;
+	u8 __reserved12:7;
+	u16 ics_surp;
+	u32 byte_cnt;
+	u8 __reserved13;
+	u32 frm_cnt:24;
+	u32 __reserved14;
+	u16 ra1_sfdr;	/* QM_MCR_NP_RA1_*** */
+	u16 ra2_sfdr;	/* QM_MCR_NP_RA2_*** */
+	u16 __reserved15;
+	u16 od1_sfdr;	/* QM_MCR_NP_OD1_*** */
+	u16 od2_sfdr;	/* QM_MCR_NP_OD2_*** */
+	u16 od3_sfdr;	/* QM_MCR_NP_OD3_*** */
+#endif
+} __packed;
+
+struct qm_mcr_alterfq {
+	u8 fqs;		/* Frame Queue Status */
+	u8 __reserved1[61];
+} __packed;
+struct qm_mcr_initcgr {
+	u8 __reserved1[62];
+} __packed;
+struct qm_mcr_cgrtestwrite {
+	u16 __reserved1;
+	struct __qm_mc_cgr cgr; /* CGR fields */
+	u8 __reserved2[3];
+	u32 __reserved3:24;
+	u32 i_bcnt_hi:8;/* high 8-bits of 40-bit "Instant" */
+	u32 i_bcnt_lo;	/* low 32-bits of 40-bit */
+	u32 __reserved4:24;
+	u32 a_bcnt_hi:8;/* high 8-bits of 40-bit "Average" */
+	u32 a_bcnt_lo;	/* low 32-bits of 40-bit */
+	u16 lgt;	/* Last Group Tick */
+	u16 wr_prob_g;
+	u16 wr_prob_y;
+	u16 wr_prob_r;
+	u8 __reserved5[8];
+} __packed;
+struct qm_mcr_querycgr {
+	u16 __reserved1;
+	struct __qm_mc_cgr cgr; /* CGR fields */
+	u8 __reserved2[3];
+	union {
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u32 __reserved3:24;
+			u32 i_bcnt_hi:8;/* high 8-bits of 40-bit "Instant" */
+			u32 i_bcnt_lo;	/* low 32-bits of 40-bit */
+#else
+			u32 i_bcnt_lo;	/* low 32-bits of 40-bit */
+			u32 i_bcnt_hi:8;/* high 8-bits of 40-bit "Instant" */
+			u32 __reserved3:24;
+#endif
+		};
+		u64 i_bcnt;
+	};
+	union {
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u32 __reserved4:24;
+			u32 a_bcnt_hi:8;/* high 8-bits of 40-bit "Average" */
+			u32 a_bcnt_lo;	/* low 32-bits of 40-bit */
+#else
+			u32 a_bcnt_lo;	/* low 32-bits of 40-bit */
+			u32 a_bcnt_hi:8;/* high 8-bits of 40-bit "Average" */
+			u32 __reserved4:24;
+#endif
+		};
+		u64 a_bcnt;
+	};
+	union {
+		u32 cscn_targ_swp[4];
+		u8 __reserved5[16];
+	};
+} __packed;
+
+struct __qm_mcr_querycongestion {
+	u32 state[8];
+};
+
+struct qm_mcr_querycongestion {
+	u8 __reserved[30];
+	/* Access this struct using QM_MCR_QUERYCONGESTION() */
+	struct __qm_mcr_querycongestion state;
+} __packed;
+struct qm_mcr_querywq {
+	union {
+		u16 channel_wq; /* ignores wq (3 lsbits) */
+		struct {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			u16 id:13; /* qm_channel */
+			u16 __reserved:3;
+#else
+			u16 __reserved:3;
+			u16 id:13; /* qm_channel */
+#endif
+		} __packed channel;
+	};
+	u8 __reserved[28];
+	u32 wq_len[8];
+} __packed;
+
+struct qm_mc_result {
+	u8 verb;
+	u8 result;
+	union {
+		struct qm_mcr_initfq initfq;
+		struct qm_mcr_queryfq queryfq;
+		struct qm_mcr_queryfq_np queryfq_np;
+		struct qm_mcr_alterfq alterfq;
+		struct qm_mcr_initcgr initcgr;
+		struct qm_mcr_cgrtestwrite cgrtestwrite;
+		struct qm_mcr_querycgr querycgr;
+		struct qm_mcr_querycongestion querycongestion;
+		struct qm_mcr_querywq querywq;
+	};
+} __packed;
+
+#define QM_MCR_VERB_RRID		0x80
+#define QM_MCR_VERB_MASK		QM_MCC_VERB_MASK
+#define QM_MCR_VERB_INITFQ_PARKED	QM_MCC_VERB_INITFQ_PARKED
+#define QM_MCR_VERB_INITFQ_SCHED	QM_MCC_VERB_INITFQ_SCHED
+#define QM_MCR_VERB_QUERYFQ		QM_MCC_VERB_QUERYFQ
+#define QM_MCR_VERB_QUERYFQ_NP		QM_MCC_VERB_QUERYFQ_NP
+#define QM_MCR_VERB_QUERYWQ		QM_MCC_VERB_QUERYWQ
+#define QM_MCR_VERB_QUERYWQ_DEDICATED	QM_MCC_VERB_QUERYWQ_DEDICATED
+#define QM_MCR_VERB_ALTER_SCHED		QM_MCC_VERB_ALTER_SCHED
+#define QM_MCR_VERB_ALTER_FE		QM_MCC_VERB_ALTER_FE
+#define QM_MCR_VERB_ALTER_RETIRE	QM_MCC_VERB_ALTER_RETIRE
+#define QM_MCR_VERB_ALTER_OOS		QM_MCC_VERB_ALTER_OOS
+#define QM_MCR_RESULT_NULL		0x00
+#define QM_MCR_RESULT_OK		0xf0
+#define QM_MCR_RESULT_ERR_FQID		0xf1
+#define QM_MCR_RESULT_ERR_FQSTATE	0xf2
+#define QM_MCR_RESULT_ERR_NOTEMPTY	0xf3	/* OOS fails if FQ is !empty */
+#define QM_MCR_RESULT_ERR_BADCHANNEL	0xf4
+#define QM_MCR_RESULT_PENDING		0xf8
+#define QM_MCR_RESULT_ERR_BADCOMMAND	0xff
+#define QM_MCR_NP_STATE_FE		0x10
+#define QM_MCR_NP_STATE_R		0x08
+#define QM_MCR_NP_STATE_MASK		0x07	/* Reads FQD::STATE; */
+#define QM_MCR_NP_STATE_OOS		0x00
+#define QM_MCR_NP_STATE_RETIRED		0x01
+#define QM_MCR_NP_STATE_TEN_SCHED	0x02
+#define QM_MCR_NP_STATE_TRU_SCHED	0x03
+#define QM_MCR_NP_STATE_PARKED		0x04
+#define QM_MCR_NP_STATE_ACTIVE		0x05
+#define QM_MCR_NP_PTR_MASK		0x07ff	/* for RA[12] & OD[123] */
+#define QM_MCR_NP_RA1_NRA(v)		(((v) >> 14) & 0x3)	/* FQD::NRA */
+#define QM_MCR_NP_RA2_IT(v)		(((v) >> 14) & 0x1)	/* FQD::IT */
+#define QM_MCR_NP_OD1_NOD(v)		(((v) >> 14) & 0x3)	/* FQD::NOD */
+#define QM_MCR_NP_OD3_NPC(v)		(((v) >> 14) & 0x3)	/* FQD::NPC */
+#define QM_MCR_FQS_ORLPRESENT		0x02	/* ORL fragments to come */
+#define QM_MCR_FQS_NOTEMPTY		0x01	/* FQ has enqueued frames */
+/* This extracts the state for congestion group 'n' from a query response.
+ * Eg.
+ *   u8 cgr = [...];
+ *   struct qm_mc_result *res = [...];
+ *   printf("congestion group %d congestion state: %d\n", cgr,
+ *       QM_MCR_QUERYCONGESTION(&res->querycongestion.state, cgr));
+ */
+#define __CGR_WORD(num)		(num >> 5)
+#define __CGR_SHIFT(num)	(num & 0x1f)
+#define __CGR_NUM		(sizeof(struct __qm_mcr_querycongestion) << 3)
+static inline int QM_MCR_QUERYCONGESTION(struct __qm_mcr_querycongestion *p,
+					 u8 cgr)
+{
+	return p->state[__CGR_WORD(cgr)] & (0x80000000 >> __CGR_SHIFT(cgr));
+}
+
+	/* Portal and Frame Queues */
+/* Represents a managed portal */
+struct qman_portal;
+
+/*
+ * This object type represents QMan frame queue descriptors (FQD), it is
+ * cacheline-aligned, and initialised by qman_create_fq(). The structure is
+ * defined further down.
+ */
+struct qman_fq;
+
+/*
+ * This object type represents a QMan congestion group, it is defined further
+ * down.
+ */
+struct qman_cgr;
+
+/*
+ * This enum, and the callback type that returns it, are used when handling
+ * dequeued frames via DQRR. Note that for "null" callbacks registered with the
+ * portal object (for handling dequeues that do not demux because context_b is
+ * NULL), the return value *MUST* be qman_cb_dqrr_consume.
+ */
+enum qman_cb_dqrr_result {
+	/* DQRR entry can be consumed */
+	qman_cb_dqrr_consume,
+	/* Like _consume, but requests parking - FQ must be held-active */
+	qman_cb_dqrr_park,
+	/* Does not consume, for DCA mode only. This allows out-of-order
+	 * consumes by explicit calls to qman_dca() and/or the use of implicit
+	 * DCA via EQCR entries.
+	 */
+	qman_cb_dqrr_defer,
+	/*
+	 * Stop processing without consuming this ring entry. Exits the current
+	 * qman_p_poll_dqrr() or interrupt-handling, as appropriate. If within
+	 * an interrupt handler, the callback would typically call
+	 * qman_irqsource_remove(QM_PIRQ_DQRI) before returning this value,
+	 * otherwise the interrupt will reassert immediately.
+	 */
+	qman_cb_dqrr_stop,
+	/* Like qman_cb_dqrr_stop, but consumes the current entry. */
+	qman_cb_dqrr_consume_stop
+};
+
+typedef enum qman_cb_dqrr_result (*qman_cb_dqrr)(struct qman_portal *qm,
+					struct qman_fq *fq,
+					const struct qm_dqrr_entry *dqrr);
+
+/*
+ * This callback type is used when handling ERNs, FQRNs and FQRLs via MR. They
+ * are always consumed after the callback returns.
+ */
+typedef void (*qman_cb_mr)(struct qman_portal *qm, struct qman_fq *fq,
+				const struct qm_mr_entry *msg);
+
+/* This callback type is used when handling DCP ERNs */
+typedef void (*qman_cb_dc_ern)(struct qman_portal *qm,
+				const struct qm_mr_entry *msg);
+/*
+ * s/w-visible states. Ie. tentatively scheduled + truly scheduled + active +
+ * held-active + held-suspended are just "sched". Things like "retired" will not
+ * be assumed until it is complete (ie. QMAN_FQ_STATE_CHANGING is set until
+ * then, to indicate it's completing and to gate attempts to retry the retire
+ * command). Note, park commands do not set QMAN_FQ_STATE_CHANGING because it's
+ * technically impossible in the case of enqueue DCAs (which refer to DQRR ring
+ * index rather than the FQ that ring entry corresponds to), so repeated park
+ * commands are allowed (if you're silly enough to try) but won't change FQ
+ * state, and the resulting park notifications move FQs from "sched" to
+ * "parked".
+ */
+enum qman_fq_state {
+	qman_fq_state_oos,
+	qman_fq_state_parked,
+	qman_fq_state_sched,
+	qman_fq_state_retired
+};
+
+
+/*
+ * Frame queue objects (struct qman_fq) are stored within memory passed to
+ * qman_create_fq(), as this allows stashing of caller-provided demux callback
+ * pointers at no extra cost to stashing of (driver-internal) FQ state. If the
+ * caller wishes to add per-FQ state and have it benefit from dequeue-stashing,
+ * they should;
+ *
+ * (a) extend the qman_fq structure with their state; eg.
+ *
+ *     // myfq is allocated and driver_fq callbacks filled in;
+ *     struct my_fq {
+ *	   struct qman_fq base;
+ *	   int an_extra_field;
+ *	   [ ... add other fields to be associated with each FQ ...]
+ *     } *myfq = some_my_fq_allocator();
+ *     struct qman_fq *fq = qman_create_fq(fqid, flags, &myfq->base);
+ *
+ *     // in a dequeue callback, access extra fields from 'fq' via a cast;
+ *     struct my_fq *myfq = (struct my_fq *)fq;
+ *     do_something_with(myfq->an_extra_field);
+ *     [...]
+ *
+ * (b) when and if configuring the FQ for context stashing, specify how ever
+ *     many cachelines are required to stash 'struct my_fq', to accelerate not
+ *     only the QMan driver but the callback as well.
+ */
+
+struct qman_fq_cb {
+	qman_cb_dqrr dqrr;	/* for dequeued frames */
+	qman_cb_mr ern;		/* for s/w ERNs */
+	qman_cb_mr fqs;		/* frame-queue state changes*/
+};
+
+struct qman_fq {
+	/* Caller of qman_create_fq() provides these demux callbacks */
+	struct qman_fq_cb cb;
+	/*
+	 * These are internal to the driver, don't touch. In particular, they
+	 * may change, be removed, or extended (so you shouldn't rely on
+	 * sizeof(qman_fq) being a constant).
+	 */
+	spinlock_t fqlock;
+	u32 fqid;
+	/* DPDK Interface */
+	void *dpaa_intf;
+
+	volatile unsigned long flags;
+	enum qman_fq_state state;
+	int cgr_groupid;
+	struct rb_node node;
+};
+
+/*
+ * This callback type is used when handling congestion group entry/exit.
+ * 'congested' is non-zero on congestion-entry, and zero on congestion-exit.
+ */
+typedef void (*qman_cb_cgr)(struct qman_portal *qm,
+			    struct qman_cgr *cgr, int congested);
+
+struct qman_cgr {
+	/* Set these prior to qman_create_cgr() */
+	u32 cgrid; /* 0..255, but u32 to allow specials like -1, 256, etc.*/
+	qman_cb_cgr cb;
+	/* These are private to the driver */
+	u16 chan; /* portal channel this object is created on */
+	struct list_head node;
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __FSL_QMAN_H */
diff --git a/drivers/bus/dpaa/include/fsl_usd.h b/drivers/bus/dpaa/include/fsl_usd.h
index 4ff48c6..b0d953f 100644
--- a/drivers/bus/dpaa/include/fsl_usd.h
+++ b/drivers/bus/dpaa/include/fsl_usd.h
@@ -47,6 +47,10 @@
 extern "C" {
 #endif
 
+/* Thread-entry/exit hooks; */
+int qman_thread_init(void);
+int qman_thread_finish(void);
+
 #define QBMAN_ANY_PORTAL_IDX 0xffffffff
 
 /* Obtain and free raw (unitialized) portals */
@@ -81,6 +85,15 @@ int qman_free_raw_portal(struct dpaa_raw_portal *portal);
 int bman_allocate_raw_portal(struct dpaa_raw_portal *portal);
 int bman_free_raw_portal(struct dpaa_raw_portal *portal);
 
+/* Post-process interrupts. NB, the kernel IRQ handler disables the interrupt
+ * line before notifying us, and this post-processing re-enables it once
+ * processing is complete. As such, it is essential to call this before going
+ * into another blocking read/select/poll.
+ */
+void qman_thread_irq(void);
+
+/* Global setup */
+int qman_global_init(void);
 #ifdef __cplusplus
 }
 #endif
-- 
2.9.3