[dpdk-dev] [PATCH v8 04/23] event/dlb2: add definitions shared with LKM or shared code

[Timothy McDaniel <timothy.mcdaniel@intel.com>]

Add headers containing structs and constants shared between
the PMD and the shared code.  The term shared code refers to
the code that implements the hardware interface. The shared code
is introduced in the probe patch, and then is extended as
additional eventdev PMD entry points are added to the patchset.
In the case of the bifurcated PMD (to be introduced in the
future), the shared code is contained in the Linux kernel
module itself.

Signed-off-by: Timothy McDaniel <timothy.mcdaniel@intel.com>
Reviewed-by: Gage Eads <gage.eads@intel.com>
---
 drivers/event/dlb2/dlb2_user.h | 679 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 679 insertions(+)
 create mode 100644 drivers/event/dlb2/dlb2_user.h

diff --git a/drivers/event/dlb2/dlb2_user.h b/drivers/event/dlb2/dlb2_user.h
new file mode 100644
index 0000000..f4bda78
--- /dev/null
+++ b/drivers/event/dlb2/dlb2_user.h
@@ -0,0 +1,679 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016-2020 Intel Corporation
+ */
+
+#ifndef __DLB2_USER_H
+#define __DLB2_USER_H
+
+#define DLB2_MAX_NAME_LEN 64
+
+#include <linux/types.h>
+
+enum dlb2_error {
+	DLB2_ST_SUCCESS = 0,
+	DLB2_ST_NAME_EXISTS,
+	DLB2_ST_DOMAIN_UNAVAILABLE,
+	DLB2_ST_LDB_PORTS_UNAVAILABLE,
+	DLB2_ST_DIR_PORTS_UNAVAILABLE,
+	DLB2_ST_LDB_QUEUES_UNAVAILABLE,
+	DLB2_ST_LDB_CREDITS_UNAVAILABLE,
+	DLB2_ST_DIR_CREDITS_UNAVAILABLE,
+	DLB2_ST_SEQUENCE_NUMBERS_UNAVAILABLE,
+	DLB2_ST_INVALID_DOMAIN_ID,
+	DLB2_ST_INVALID_QID_INFLIGHT_ALLOCATION,
+	DLB2_ST_ATOMIC_INFLIGHTS_UNAVAILABLE,
+	DLB2_ST_HIST_LIST_ENTRIES_UNAVAILABLE,
+	DLB2_ST_INVALID_LDB_QUEUE_ID,
+	DLB2_ST_INVALID_CQ_DEPTH,
+	DLB2_ST_INVALID_CQ_VIRT_ADDR,
+	DLB2_ST_INVALID_PORT_ID,
+	DLB2_ST_INVALID_QID,
+	DLB2_ST_INVALID_PRIORITY,
+	DLB2_ST_NO_QID_SLOTS_AVAILABLE,
+	DLB2_ST_INVALID_DIR_QUEUE_ID,
+	DLB2_ST_DIR_QUEUES_UNAVAILABLE,
+	DLB2_ST_DOMAIN_NOT_CONFIGURED,
+	DLB2_ST_INTERNAL_ERROR,
+	DLB2_ST_DOMAIN_IN_USE,
+	DLB2_ST_DOMAIN_NOT_FOUND,
+	DLB2_ST_QUEUE_NOT_FOUND,
+	DLB2_ST_DOMAIN_STARTED,
+	DLB2_ST_DOMAIN_NOT_STARTED,
+	DLB2_ST_LDB_PORT_REQUIRED_FOR_LDB_QUEUES,
+	DLB2_ST_DOMAIN_RESET_FAILED,
+	DLB2_ST_MBOX_ERROR,
+	DLB2_ST_INVALID_HIST_LIST_DEPTH,
+	DLB2_ST_NO_MEMORY,
+	DLB2_ST_INVALID_LOCK_ID_COMP_LEVEL,
+	DLB2_ST_INVALID_COS_ID,
+};
+
+static const char dlb2_error_strings[][128] = {
+	"DLB2_ST_SUCCESS",
+	"DLB2_ST_NAME_EXISTS",
+	"DLB2_ST_DOMAIN_UNAVAILABLE",
+	"DLB2_ST_LDB_PORTS_UNAVAILABLE",
+	"DLB2_ST_DIR_PORTS_UNAVAILABLE",
+	"DLB2_ST_LDB_QUEUES_UNAVAILABLE",
+	"DLB2_ST_LDB_CREDITS_UNAVAILABLE",
+	"DLB2_ST_DIR_CREDITS_UNAVAILABLE",
+	"DLB2_ST_SEQUENCE_NUMBERS_UNAVAILABLE",
+	"DLB2_ST_INVALID_DOMAIN_ID",
+	"DLB2_ST_INVALID_QID_INFLIGHT_ALLOCATION",
+	"DLB2_ST_ATOMIC_INFLIGHTS_UNAVAILABLE",
+	"DLB2_ST_HIST_LIST_ENTRIES_UNAVAILABLE",
+	"DLB2_ST_INVALID_LDB_QUEUE_ID",
+	"DLB2_ST_INVALID_CQ_DEPTH",
+	"DLB2_ST_INVALID_CQ_VIRT_ADDR",
+	"DLB2_ST_INVALID_PORT_ID",
+	"DLB2_ST_INVALID_QID",
+	"DLB2_ST_INVALID_PRIORITY",
+	"DLB2_ST_NO_QID_SLOTS_AVAILABLE",
+	"DLB2_ST_INVALID_DIR_QUEUE_ID",
+	"DLB2_ST_DIR_QUEUES_UNAVAILABLE",
+	"DLB2_ST_DOMAIN_NOT_CONFIGURED",
+	"DLB2_ST_INTERNAL_ERROR",
+	"DLB2_ST_DOMAIN_IN_USE",
+	"DLB2_ST_DOMAIN_NOT_FOUND",
+	"DLB2_ST_QUEUE_NOT_FOUND",
+	"DLB2_ST_DOMAIN_STARTED",
+	"DLB2_ST_DOMAIN_NOT_STARTED",
+	"DLB2_ST_LDB_PORT_REQUIRED_FOR_LDB_QUEUES",
+	"DLB2_ST_DOMAIN_RESET_FAILED",
+	"DLB2_ST_MBOX_ERROR",
+	"DLB2_ST_INVALID_HIST_LIST_DEPTH",
+	"DLB2_ST_NO_MEMORY",
+	"DLB2_ST_INVALID_LOCK_ID_COMP_LEVEL",
+	"DLB2_ST_INVALID_COS_ID",
+};
+
+struct dlb2_cmd_response {
+	__u32 status; /* Interpret using enum dlb2_error */
+	__u32 id;
+};
+
+/*******************/
+/* 'dlb2' commands */
+/*******************/
+
+#define DLB2_DEVICE_VERSION(x) (((x) >> 8) & 0xFF)
+#define DLB2_DEVICE_REVISION(x) ((x) & 0xFF)
+
+enum dlb2_revisions {
+	DLB2_REV_A0 = 0,
+};
+
+/*
+ * DLB2_CMD_GET_DEVICE_VERSION: Query the DLB device version.
+ *
+ *	This ioctl interface is the same in all driver versions and is always
+ *	the first ioctl.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id[7:0]: Device revision.
+ * - response.id[15:8]: Device version.
+ */
+
+struct dlb2_get_device_version_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+};
+
+/*
+ * DLB2_CMD_CREATE_SCHED_DOMAIN: Create a DLB 2.0 scheduling domain and reserve
+ *	its hardware resources. This command returns the newly created domain
+ *	ID and a file descriptor for accessing the domain.
+ *
+ * Input parameters:
+ * - num_ldb_queues: Number of load-balanced queues.
+ * - num_ldb_ports: Number of load-balanced ports that can be allocated from
+ *	any class-of-service with available ports.
+ * - num_cos_ldb_ports[4]: Number of load-balanced ports from
+ *	classes-of-service 0-3.
+ * - num_dir_ports: Number of directed ports. A directed port has one directed
+ *	queue, so no num_dir_queues argument is necessary.
+ * - num_atomic_inflights: This specifies the amount of temporary atomic QE
+ *	storage for the domain. This storage is divided among the domain's
+ *	load-balanced queues that are configured for atomic scheduling.
+ * - num_hist_list_entries: Amount of history list storage. This is divided
+ *	among the domain's CQs.
+ * - num_ldb_credits: Amount of load-balanced QE storage (QED). QEs occupy this
+ *	space until they are scheduled to a load-balanced CQ. One credit
+ *	represents the storage for one QE.
+ * - num_dir_credits: Amount of directed QE storage (DQED). QEs occupy this
+ *	space until they are scheduled to a directed CQ. One credit represents
+ *	the storage for one QE.
+ * - cos_strict: If set, return an error if there are insufficient ports in
+ *	class-of-service N to satisfy the num_ldb_ports_cosN argument. If
+ *	unset, attempt to fulfill num_ldb_ports_cosN arguments from other
+ *	classes-of-service if class N does not contain enough free ports.
+ * - padding1: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: domain ID.
+ * - domain_fd: file descriptor for performing the domain's ioctl operations
+ * - padding0: Reserved for future use.
+ */
+struct dlb2_create_sched_domain_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	__u32 domain_fd;
+	__u32 padding0;
+	/* Input parameters */
+	__u32 num_ldb_queues;
+	__u32 num_ldb_ports;
+	__u32 num_cos_ldb_ports[4];
+	__u32 num_dir_ports;
+	__u32 num_atomic_inflights;
+	__u32 num_hist_list_entries;
+	__u32 num_ldb_credits;
+	__u32 num_dir_credits;
+	__u8 cos_strict;
+	__u8 padding1[3];
+};
+
+/*
+ * DLB2_CMD_GET_NUM_RESOURCES: Return the number of available resources
+ *	(queues, ports, etc.) that this device owns.
+ *
+ * Output parameters:
+ * - num_domains: Number of available scheduling domains.
+ * - num_ldb_queues: Number of available load-balanced queues.
+ * - num_ldb_ports: Total number of available load-balanced ports.
+ * - num_cos_ldb_ports[4]: Number of available load-balanced ports from
+ *	classes-of-service 0-3.
+ * - num_dir_ports: Number of available directed ports. There is one directed
+ *	queue for every directed port.
+ * - num_atomic_inflights: Amount of available temporary atomic QE storage.
+ * - num_hist_list_entries: Amount of history list storage.
+ * - max_contiguous_hist_list_entries: History list storage is allocated in
+ *	a contiguous chunk, and this return value is the longest available
+ *	contiguous range of history list entries.
+ * - num_ldb_credits: Amount of available load-balanced QE storage.
+ * - num_dir_credits: Amount of available directed QE storage.
+ */
+struct dlb2_get_num_resources_args {
+	/* Output parameters */
+	__u32 num_sched_domains;
+	__u32 num_ldb_queues;
+	__u32 num_ldb_ports;
+	__u32 num_cos_ldb_ports[4];
+	__u32 num_dir_ports;
+	__u32 num_atomic_inflights;
+	__u32 num_hist_list_entries;
+	__u32 max_contiguous_hist_list_entries;
+	__u32 num_ldb_credits;
+	__u32 num_dir_credits;
+};
+
+/*
+ * DLB2_CMD_SET_SN_ALLOCATION: Configure a sequence number group (PF only)
+ *
+ * Input parameters:
+ * - group: Sequence number group ID.
+ * - num: Number of sequence numbers per queue.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_set_sn_allocation_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 group;
+	__u32 num;
+};
+
+/*
+ * DLB2_CMD_GET_SN_ALLOCATION: Get a sequence number group's configuration
+ *
+ * Input parameters:
+ * - group: Sequence number group ID.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: Specified group's number of sequence numbers per queue.
+ */
+struct dlb2_get_sn_allocation_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 group;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_CMD_SET_COS_BW: Set a bandwidth allocation percentage for a
+ *	load-balanced port class-of-service (PF only).
+ *
+ * Input parameters:
+ * - cos_id: class-of-service ID, between 0 and 3 (inclusive).
+ * - bandwidth: class-of-service bandwidth percentage. Total bandwidth
+ *		percentages across all 4 classes cannot exceed 100%.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_set_cos_bw_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 cos_id;
+	__u32 bandwidth;
+};
+
+/*
+ * DLB2_CMD_GET_COS_BW: Get the bandwidth allocation percentage for a
+ *	load-balanced port class-of-service.
+ *
+ * Input parameters:
+ * - cos_id: class-of-service ID, between 0 and 3 (inclusive).
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: Specified class's bandwidth percentage.
+ */
+struct dlb2_get_cos_bw_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 cos_id;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_CMD_GET_SN_OCCUPANCY: Get a sequence number group's occupancy
+ *
+ * Each sequence number group has one or more slots, depending on its
+ * configuration. I.e.:
+ * - If configured for 1024 sequence numbers per queue, the group has 1 slot
+ * - If configured for 512 sequence numbers per queue, the group has 2 slots
+ *   ...
+ * - If configured for 32 sequence numbers per queue, the group has 32 slots
+ *
+ * This ioctl returns the group's number of in-use slots. If its occupancy is
+ * 0, the group's sequence number allocation can be reconfigured.
+ *
+ * Input parameters:
+ * - group: Sequence number group ID.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: Specified group's number of used slots.
+ */
+struct dlb2_get_sn_occupancy_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 group;
+	__u32 padding0;
+};
+
+enum dlb2_cq_poll_modes {
+	DLB2_CQ_POLL_MODE_STD,
+	DLB2_CQ_POLL_MODE_SPARSE,
+
+	/* NUM_DLB2_CQ_POLL_MODE must be last */
+	NUM_DLB2_CQ_POLL_MODE,
+};
+
+/*
+ * DLB2_CMD_QUERY_CQ_POLL_MODE: Query the CQ poll mode setting
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: CQ poll mode (see enum dlb2_cq_poll_modes).
+ */
+struct dlb2_query_cq_poll_mode_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+};
+
+/********************************/
+/* 'scheduling domain' commands */
+/********************************/
+
+/*
+ * DLB2_DOMAIN_CMD_CREATE_LDB_QUEUE: Configure a load-balanced queue.
+ * Input parameters:
+ * - num_atomic_inflights: This specifies the amount of temporary atomic QE
+ *	storage for this queue. If zero, the queue will not support atomic
+ *	scheduling.
+ * - num_sequence_numbers: This specifies the number of sequence numbers used
+ *	by this queue. If zero, the queue will not support ordered scheduling.
+ *	If non-zero, the queue will not support unordered scheduling.
+ * - num_qid_inflights: The maximum number of QEs that can be inflight
+ *	(scheduled to a CQ but not completed) at any time. If
+ *	num_sequence_numbers is non-zero, num_qid_inflights must be set equal
+ *	to num_sequence_numbers.
+ * - lock_id_comp_level: Lock ID compression level. Specifies the number of
+ *	unique lock IDs the queue should compress down to. Valid compression
+ *	levels: 0, 64, 128, 256, 512, 1k, 2k, 4k, 64k. If lock_id_comp_level is
+ *	0, the queue won't compress its lock IDs.
+ * - depth_threshold: DLB sets two bits in the received QE to indicate the
+ *	depth of the queue relative to the threshold before scheduling the
+ *	QE to a CQ:
+ *	- 2’b11: depth > threshold
+ *	- 2’b10: threshold >= depth > 0.75 * threshold
+ *	- 2’b01: 0.75 * threshold >= depth > 0.5 * threshold
+ *	- 2’b00: depth <= 0.5 * threshold
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: Queue ID.
+ */
+struct dlb2_create_ldb_queue_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 num_sequence_numbers;
+	__u32 num_qid_inflights;
+	__u32 num_atomic_inflights;
+	__u32 lock_id_comp_level;
+	__u32 depth_threshold;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_CREATE_DIR_QUEUE: Configure a directed queue.
+ * Input parameters:
+ * - port_id: Port ID. If the corresponding directed port is already created,
+ *	specify its ID here. Else this argument must be 0xFFFFFFFF to indicate
+ *	that the queue is being created before the port.
+ * - depth_threshold: DLB sets two bits in the received QE to indicate the
+ *	depth of the queue relative to the threshold before scheduling the
+ *	QE to a CQ:
+ *	- 2’b11: depth > threshold
+ *	- 2’b10: threshold >= depth > 0.75 * threshold
+ *	- 2’b01: 0.75 * threshold >= depth > 0.5 * threshold
+ *	- 2’b00: depth <= 0.5 * threshold
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: Queue ID.
+ */
+struct dlb2_create_dir_queue_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__s32 port_id;
+	__u32 depth_threshold;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_CREATE_LDB_PORT: Configure a load-balanced port.
+ * Input parameters:
+ * - cq_depth: Depth of the port's CQ. Must be a power-of-two between 8 and
+ *	1024, inclusive.
+ * - cq_depth_threshold: CQ depth interrupt threshold. A value of N means that
+ *	the CQ interrupt won't fire until there are N or more outstanding CQ
+ *	tokens.
+ * - num_hist_list_entries: Number of history list entries. This must be
+ *	greater than or equal cq_depth.
+ * - cos_id: class-of-service to allocate this port from. Must be between 0 and
+ *	3, inclusive.
+ * - cos_strict: If set, return an error if there are no available ports in the
+ *	requested class-of-service. Else, allocate the port from a different
+ *	class-of-service if the requested class has no available ports.
+ *
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: port ID.
+ */
+
+struct dlb2_create_ldb_port_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u16 cq_depth;
+	__u16 cq_depth_threshold;
+	__u16 cq_history_list_size;
+	__u8 cos_id;
+	__u8 cos_strict;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_CREATE_DIR_PORT: Configure a directed port.
+ * Input parameters:
+ * - cq_depth: Depth of the port's CQ. Must be a power-of-two between 8 and
+ *	1024, inclusive.
+ * - cq_depth_threshold: CQ depth interrupt threshold. A value of N means that
+ *	the CQ interrupt won't fire until there are N or more outstanding CQ
+ *	tokens.
+ * - qid: Queue ID. If the corresponding directed queue is already created,
+ *	specify its ID here. Else this argument must be 0xFFFFFFFF to indicate
+ *	that the port is being created before the queue.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: Port ID.
+ */
+struct dlb2_create_dir_port_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u16 cq_depth;
+	__u16 cq_depth_threshold;
+	__s32 queue_id;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_START_DOMAIN: Mark the end of the domain configuration. This
+ *	must be called before passing QEs into the device, and no configuration
+ *	ioctls can be issued once the domain has started. Sending QEs into the
+ *	device before calling this ioctl will result in undefined behavior.
+ * Input parameters:
+ * - (None)
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_start_domain_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_MAP_QID: Map a load-balanced queue to a load-balanced port.
+ * Input parameters:
+ * - port_id: Load-balanced port ID.
+ * - qid: Load-balanced queue ID.
+ * - priority: Queue->port service priority.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_map_qid_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 port_id;
+	__u32 qid;
+	__u32 priority;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_UNMAP_QID: Unmap a load-balanced queue to a load-balanced
+ *	port.
+ * Input parameters:
+ * - port_id: Load-balanced port ID.
+ * - qid: Load-balanced queue ID.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_unmap_qid_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 port_id;
+	__u32 qid;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_ENABLE_LDB_PORT: Enable scheduling to a load-balanced port.
+ * Input parameters:
+ * - port_id: Load-balanced port ID.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_enable_ldb_port_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 port_id;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_ENABLE_DIR_PORT: Enable scheduling to a directed port.
+ * Input parameters:
+ * - port_id: Directed port ID.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_enable_dir_port_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 port_id;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_DISABLE_LDB_PORT: Disable scheduling to a load-balanced
+ *	port.
+ * Input parameters:
+ * - port_id: Load-balanced port ID.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_disable_ldb_port_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 port_id;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_DISABLE_DIR_PORT: Disable scheduling to a directed port.
+ * Input parameters:
+ * - port_id: Directed port ID.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ */
+struct dlb2_disable_dir_port_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 port_id;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_GET_LDB_QUEUE_DEPTH: Get a load-balanced queue's depth.
+ * Input parameters:
+ * - queue_id: The load-balanced queue ID.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: queue depth.
+ */
+struct dlb2_get_ldb_queue_depth_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 queue_id;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_DIR_QUEUE_DEPTH: Get a directed queue's depth.
+ * Input parameters:
+ * - queue_id: The directed queue ID.
+ * - padding0: Reserved for future use.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: queue depth.
+ */
+struct dlb2_get_dir_queue_depth_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 queue_id;
+	__u32 padding0;
+};
+
+/*
+ * DLB2_DOMAIN_CMD_PENDING_PORT_UNMAPS: Get number of queue unmap operations in
+ *	progress for a load-balanced port.
+ *
+ *	Note: This is a snapshot; the number of unmap operations in progress
+ *	is subject to change at any time.
+ *
+ * Input parameters:
+ * - port_id: Load-balanced port ID.
+ *
+ * Output parameters:
+ * - response.status: Detailed error code. In certain cases, such as if the
+ *	ioctl request arg is invalid, the driver won't set status.
+ * - response.id: number of unmaps in progress.
+ */
+struct dlb2_pending_port_unmaps_args {
+	/* Output parameters */
+	struct dlb2_cmd_response response;
+	/* Input parameters */
+	__u32 port_id;
+	__u32 padding0;
+};
+
+/*
+ * Mapping sizes for memory mapping the consumer queue (CQ) memory space, and
+ * producer port (PP) MMIO space.
+ */
+#define DLB2_CQ_SIZE 65536
+#define DLB2_PP_SIZE 4096
+
+
+#endif /* __DLB2_USER_H */
-- 
2.6.4