/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _RDMA_NETLINK_H
#define _RDMA_NETLINK_H

#include <linux/types.h>

enum {
        RDMA_NL_IWCM = 2,
        RDMA_NL_RSVD,
        RDMA_NL_LS,     /* RDMA Local Services */
        RDMA_NL_NLDEV,  /* RDMA device interface */
        RDMA_NL_NUM_CLIENTS
};

enum {
        RDMA_NL_GROUP_IWPM = 2,
        RDMA_NL_GROUP_LS,
        RDMA_NL_NUM_GROUPS
};

#define RDMA_NL_GET_CLIENT(type) ((type & (((1 << 6) - 1) << 10)) >> 10)
#define RDMA_NL_GET_OP(type) (type & ((1 << 10) - 1))
#define RDMA_NL_GET_TYPE(client, op) ((client << 10) + op)

/* The minimum version that the iwpm kernel supports */
#define IWPM_UABI_VERSION_MIN   3

/* The latest version that the iwpm kernel supports */
#define IWPM_UABI_VERSION       4

/* iwarp port mapper message flags */
enum {

        /* Do not map the port for this IWPM request */
        IWPM_FLAGS_NO_PORT_MAP = (1 << 0),
};

/* iwarp port mapper op-codes */
enum {
        RDMA_NL_IWPM_REG_PID = 0,
        RDMA_NL_IWPM_ADD_MAPPING,
        RDMA_NL_IWPM_QUERY_MAPPING,
        RDMA_NL_IWPM_REMOVE_MAPPING,
        RDMA_NL_IWPM_REMOTE_INFO,
        RDMA_NL_IWPM_HANDLE_ERR,
        RDMA_NL_IWPM_MAPINFO,
        RDMA_NL_IWPM_MAPINFO_NUM,
        RDMA_NL_IWPM_HELLO,
        RDMA_NL_IWPM_NUM_OPS
};

enum {
        IWPM_NLA_REG_PID_UNSPEC = 0,
        IWPM_NLA_REG_PID_SEQ,
        IWPM_NLA_REG_IF_NAME,
        IWPM_NLA_REG_IBDEV_NAME,
        IWPM_NLA_REG_ULIB_NAME,
        IWPM_NLA_REG_PID_MAX
};

enum {
        IWPM_NLA_RREG_PID_UNSPEC = 0,
        IWPM_NLA_RREG_PID_SEQ,
        IWPM_NLA_RREG_IBDEV_NAME,
        IWPM_NLA_RREG_ULIB_NAME,
        IWPM_NLA_RREG_ULIB_VER,
        IWPM_NLA_RREG_PID_ERR,
        IWPM_NLA_RREG_PID_MAX

};

enum {
        IWPM_NLA_MANAGE_MAPPING_UNSPEC = 0,
        IWPM_NLA_MANAGE_MAPPING_SEQ,
        IWPM_NLA_MANAGE_ADDR,
        IWPM_NLA_MANAGE_FLAGS,
        IWPM_NLA_MANAGE_MAPPING_MAX
};

enum {
        IWPM_NLA_RMANAGE_MAPPING_UNSPEC = 0,
        IWPM_NLA_RMANAGE_MAPPING_SEQ,
        IWPM_NLA_RMANAGE_ADDR,
        IWPM_NLA_RMANAGE_MAPPED_LOC_ADDR,
        /* The following maintains bisectability of rdma-core */
        IWPM_NLA_MANAGE_MAPPED_LOC_ADDR = IWPM_NLA_RMANAGE_MAPPED_LOC_ADDR,
        IWPM_NLA_RMANAGE_MAPPING_ERR,
        IWPM_NLA_RMANAGE_MAPPING_MAX
};

#define IWPM_NLA_MAPINFO_SEND_MAX   3
#define IWPM_NLA_REMOVE_MAPPING_MAX 3

enum {
        IWPM_NLA_QUERY_MAPPING_UNSPEC = 0,
        IWPM_NLA_QUERY_MAPPING_SEQ,
        IWPM_NLA_QUERY_LOCAL_ADDR,
        IWPM_NLA_QUERY_REMOTE_ADDR,
        IWPM_NLA_QUERY_FLAGS,
        IWPM_NLA_QUERY_MAPPING_MAX,
};

enum {
        IWPM_NLA_RQUERY_MAPPING_UNSPEC = 0,
        IWPM_NLA_RQUERY_MAPPING_SEQ,
        IWPM_NLA_RQUERY_LOCAL_ADDR,
        IWPM_NLA_RQUERY_REMOTE_ADDR,
        IWPM_NLA_RQUERY_MAPPED_LOC_ADDR,
        IWPM_NLA_RQUERY_MAPPED_REM_ADDR,
        IWPM_NLA_RQUERY_MAPPING_ERR,
        IWPM_NLA_RQUERY_MAPPING_MAX
};

enum {
        IWPM_NLA_MAPINFO_REQ_UNSPEC = 0,
        IWPM_NLA_MAPINFO_ULIB_NAME,
        IWPM_NLA_MAPINFO_ULIB_VER,
        IWPM_NLA_MAPINFO_REQ_MAX
};

enum {
        IWPM_NLA_MAPINFO_UNSPEC = 0,
        IWPM_NLA_MAPINFO_LOCAL_ADDR,
        IWPM_NLA_MAPINFO_MAPPED_ADDR,
        IWPM_NLA_MAPINFO_FLAGS,
        IWPM_NLA_MAPINFO_MAX
};

enum {
        IWPM_NLA_MAPINFO_NUM_UNSPEC = 0,
        IWPM_NLA_MAPINFO_SEQ,
        IWPM_NLA_MAPINFO_SEND_NUM,
        IWPM_NLA_MAPINFO_ACK_NUM,
        IWPM_NLA_MAPINFO_NUM_MAX
};

enum {
        IWPM_NLA_ERR_UNSPEC = 0,
        IWPM_NLA_ERR_SEQ,
        IWPM_NLA_ERR_CODE,
        IWPM_NLA_ERR_MAX
};

enum {
        IWPM_NLA_HELLO_UNSPEC = 0,
        IWPM_NLA_HELLO_ABI_VERSION,
        IWPM_NLA_HELLO_MAX
};

/* For RDMA_NLDEV_ATTR_DEV_NODE_TYPE */
enum {
        /* IB values map to NodeInfo:NodeType. */
        RDMA_NODE_IB_CA = 1,
        RDMA_NODE_IB_SWITCH,
        RDMA_NODE_IB_ROUTER,
        RDMA_NODE_RNIC,
        RDMA_NODE_USNIC,
        RDMA_NODE_USNIC_UDP,
        RDMA_NODE_UNSPECIFIED,
};

/*
 * Local service operations:
 *   RESOLVE - The client requests the local service to resolve a path.
 *   SET_TIMEOUT - The local service requests the client to set the timeout.
 *   IP_RESOLVE - The client requests the local service to resolve an IP to GID.
 */
enum {
        RDMA_NL_LS_OP_RESOLVE = 0,
        RDMA_NL_LS_OP_SET_TIMEOUT,
        RDMA_NL_LS_OP_IP_RESOLVE,
        RDMA_NL_LS_NUM_OPS
};

/* Local service netlink message flags */
#define RDMA_NL_LS_F_ERR        0x0100  /* Failed response */

/*
 * Local service resolve operation family header.
 * The layout for the resolve operation:
 *    nlmsg header
 *    family header
 *    attributes
 */

/*
 * Local service path use:
 * Specify how the path(s) will be used.
 *   ALL - For connected CM operation (6 pathrecords)
 *   UNIDIRECTIONAL - For unidirectional UD (1 pathrecord)
 *   GMP - For miscellaneous GMP like operation (at least 1 reversible
 *         pathrecord)
 */
enum {
        LS_RESOLVE_PATH_USE_ALL = 0,
        LS_RESOLVE_PATH_USE_UNIDIRECTIONAL,
        LS_RESOLVE_PATH_USE_GMP,
        LS_RESOLVE_PATH_USE_MAX
};

#define LS_DEVICE_NAME_MAX 64

struct rdma_ls_resolve_header {
        __u8 device_name[LS_DEVICE_NAME_MAX];
        __u8 port_num;
        __u8 path_use;
};

struct rdma_ls_ip_resolve_header {
        __u32 ifindex;
};

/* Local service attribute type */
#define RDMA_NLA_F_MANDATORY    (1 << 13)
#define RDMA_NLA_TYPE_MASK      (~(NLA_F_NESTED | NLA_F_NET_BYTEORDER | \
                                  RDMA_NLA_F_MANDATORY))

/*
 * Local service attributes:
 *   Attr Name       Size                       Byte order
 *   -----------------------------------------------------
 *   PATH_RECORD     struct ib_path_rec_data
 *   TIMEOUT         u32                        cpu
 *   SERVICE_ID      u64                        cpu
 *   DGID            u8[16]                     BE
 *   SGID            u8[16]                     BE
 *   TCLASS          u8
 *   PKEY            u16                        cpu
 *   QOS_CLASS       u16                        cpu
 *   IPV4            u32                        BE
 *   IPV6            u8[16]                     BE
 */
enum {
        LS_NLA_TYPE_UNSPEC = 0,
        LS_NLA_TYPE_PATH_RECORD,
        LS_NLA_TYPE_TIMEOUT,
        LS_NLA_TYPE_SERVICE_ID,
        LS_NLA_TYPE_DGID,
        LS_NLA_TYPE_SGID,
        LS_NLA_TYPE_TCLASS,
        LS_NLA_TYPE_PKEY,
        LS_NLA_TYPE_QOS_CLASS,
        LS_NLA_TYPE_IPV4,
        LS_NLA_TYPE_IPV6,
        LS_NLA_TYPE_MAX
};

/* Local service DGID/SGID attribute: big endian */
struct rdma_nla_ls_gid {
        __u8            gid[16];
};

enum rdma_nldev_command {
        RDMA_NLDEV_CMD_UNSPEC,

        RDMA_NLDEV_CMD_GET, /* can dump */
        RDMA_NLDEV_CMD_SET,

        RDMA_NLDEV_CMD_NEWLINK,

        RDMA_NLDEV_CMD_DELLINK,

        RDMA_NLDEV_CMD_PORT_GET, /* can dump */

        RDMA_NLDEV_CMD_SYS_GET,
        RDMA_NLDEV_CMD_SYS_SET,

        /* 8 is free to use */

        RDMA_NLDEV_CMD_RES_GET = 9, /* can dump */

        RDMA_NLDEV_CMD_RES_QP_GET, /* can dump */

        RDMA_NLDEV_CMD_RES_CM_ID_GET, /* can dump */

        RDMA_NLDEV_CMD_RES_CQ_GET, /* can dump */

        RDMA_NLDEV_CMD_RES_MR_GET, /* can dump */

        RDMA_NLDEV_CMD_RES_PD_GET, /* can dump */

        RDMA_NLDEV_CMD_GET_CHARDEV,

        RDMA_NLDEV_CMD_STAT_SET,

        RDMA_NLDEV_CMD_STAT_GET, /* can dump */

        RDMA_NLDEV_CMD_STAT_DEL,

        RDMA_NLDEV_CMD_RES_QP_GET_RAW,

        RDMA_NLDEV_CMD_RES_CQ_GET_RAW,

        RDMA_NLDEV_CMD_RES_MR_GET_RAW,

        RDMA_NLDEV_CMD_RES_CTX_GET, /* can dump */

        RDMA_NLDEV_CMD_RES_SRQ_GET, /* can dump */

        RDMA_NLDEV_NUM_OPS
};

enum rdma_nldev_print_type {
        RDMA_NLDEV_PRINT_TYPE_UNSPEC,
        RDMA_NLDEV_PRINT_TYPE_HEX,
};

enum rdma_nldev_attr {
        /* don't change the order or add anything between, this is ABI! */
        RDMA_NLDEV_ATTR_UNSPEC,

        /* Pad attribute for 64b alignment */
        RDMA_NLDEV_ATTR_PAD = RDMA_NLDEV_ATTR_UNSPEC,

        /* Identifier for ib_device */
        RDMA_NLDEV_ATTR_DEV_INDEX,              /* u32 */

        RDMA_NLDEV_ATTR_DEV_NAME,               /* string */
        /*
         * Device index together with port index are identifiers
         * for port/link properties.
         *
         * For RDMA_NLDEV_CMD_GET commamnd, port index will return number
         * of available ports in ib_device, while for port specific operations,
         * it will be real port index as it appears in sysfs. Port index follows
         * sysfs notation and starts from 1 for the first port.
         */
        RDMA_NLDEV_ATTR_PORT_INDEX,             /* u32 */

        /*
         * Device and port capabilities
         *
         * When used for port info, first 32-bits are CapabilityMask followed by
         * 16-bit CapabilityMask2.
         */
        RDMA_NLDEV_ATTR_CAP_FLAGS,              /* u64 */

        /*
         * FW version
         */
        RDMA_NLDEV_ATTR_FW_VERSION,             /* string */

        /*
         * Node GUID (in host byte order) associated with the RDMA device.
         */
        RDMA_NLDEV_ATTR_NODE_GUID,                      /* u64 */

        /*
         * System image GUID (in host byte order) associated with
         * this RDMA device and other devices which are part of a
         * single system.
         */
        RDMA_NLDEV_ATTR_SYS_IMAGE_GUID,         /* u64 */

        /*
         * Subnet prefix (in host byte order)
         */
        RDMA_NLDEV_ATTR_SUBNET_PREFIX,          /* u64 */

        /*
         * Local Identifier (LID),
         * According to IB specification, It is 16-bit address assigned
         * by the Subnet Manager. Extended to be 32-bit for OmniPath users.
         */
        RDMA_NLDEV_ATTR_LID,                    /* u32 */
        RDMA_NLDEV_ATTR_SM_LID,                 /* u32 */

        /*
         * LID mask control (LMC)
         */
        RDMA_NLDEV_ATTR_LMC,                    /* u8 */

        RDMA_NLDEV_ATTR_PORT_STATE,             /* u8 */
        RDMA_NLDEV_ATTR_PORT_PHYS_STATE,        /* u8 */

        RDMA_NLDEV_ATTR_DEV_NODE_TYPE,          /* u8 */

        RDMA_NLDEV_ATTR_RES_SUMMARY,            /* nested table */
        RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY,      /* nested table */
        RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME, /* string */
        RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR, /* u64 */

        RDMA_NLDEV_ATTR_RES_QP,                 /* nested table */
        RDMA_NLDEV_ATTR_RES_QP_ENTRY,           /* nested table */
        /*
         * Local QPN
         */
        RDMA_NLDEV_ATTR_RES_LQPN,               /* u32 */
        /*
         * Remote QPN,
         * Applicable for RC and UC only IBTA 11.2.5.3 QUERY QUEUE PAIR
         */
        RDMA_NLDEV_ATTR_RES_RQPN,               /* u32 */
        /*
         * Receive Queue PSN,
         * Applicable for RC and UC only 11.2.5.3 QUERY QUEUE PAIR
         */
        RDMA_NLDEV_ATTR_RES_RQ_PSN,             /* u32 */
        /*
         * Send Queue PSN
         */
        RDMA_NLDEV_ATTR_RES_SQ_PSN,             /* u32 */
        RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE,     /* u8 */
        /*
         * QP types as visible to RDMA/core, the reserved QPT
         * are not exported through this interface.
         */
        RDMA_NLDEV_ATTR_RES_TYPE,               /* u8 */
        RDMA_NLDEV_ATTR_RES_STATE,              /* u8 */
        /*
         * Process ID which created object,
         * in case of kernel origin, PID won't exist.
         */
        RDMA_NLDEV_ATTR_RES_PID,                /* u32 */
        /*
         * The name of process created following resource.
         * It will exist only for kernel objects.
         * For user created objects, the user is supposed
         * to read /proc/PID/comm file.
         */
        RDMA_NLDEV_ATTR_RES_KERN_NAME,          /* string */

        RDMA_NLDEV_ATTR_RES_CM_ID,              /* nested table */
        RDMA_NLDEV_ATTR_RES_CM_ID_ENTRY,        /* nested table */
        /*
         * rdma_cm_id port space.
         */
        RDMA_NLDEV_ATTR_RES_PS,                 /* u32 */
        /*
         * Source and destination socket addresses
         */
        RDMA_NLDEV_ATTR_RES_SRC_ADDR,           /* __kernel_sockaddr_storage */
        RDMA_NLDEV_ATTR_RES_DST_ADDR,           /* __kernel_sockaddr_storage */

        RDMA_NLDEV_ATTR_RES_CQ,                 /* nested table */
        RDMA_NLDEV_ATTR_RES_CQ_ENTRY,           /* nested table */
        RDMA_NLDEV_ATTR_RES_CQE,                /* u32 */
        RDMA_NLDEV_ATTR_RES_USECNT,             /* u64 */
        RDMA_NLDEV_ATTR_RES_POLL_CTX,           /* u8 */

        RDMA_NLDEV_ATTR_RES_MR,                 /* nested table */
        RDMA_NLDEV_ATTR_RES_MR_ENTRY,           /* nested table */
        RDMA_NLDEV_ATTR_RES_RKEY,               /* u32 */
        RDMA_NLDEV_ATTR_RES_LKEY,               /* u32 */
        RDMA_NLDEV_ATTR_RES_IOVA,               /* u64 */
        RDMA_NLDEV_ATTR_RES_MRLEN,              /* u64 */

        RDMA_NLDEV_ATTR_RES_PD,                 /* nested table */
        RDMA_NLDEV_ATTR_RES_PD_ENTRY,           /* nested table */
        RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY,     /* u32 */
        RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY, /* u32 */
        /*
         * Provides logical name and index of netdevice which is
         * connected to physical port. This information is relevant
         * for RoCE and iWARP.
         *
         * The netdevices which are associated with containers are
         * supposed to be exported together with GID table once it
         * will be exposed through the netlink. Because the
         * associated netdevices are properties of GIDs.
         */
        RDMA_NLDEV_ATTR_NDEV_INDEX,             /* u32 */
        RDMA_NLDEV_ATTR_NDEV_NAME,              /* string */
        /*
         * driver-specific attributes.
         */
        RDMA_NLDEV_ATTR_DRIVER,                 /* nested table */
        RDMA_NLDEV_ATTR_DRIVER_ENTRY,           /* nested table */
        RDMA_NLDEV_ATTR_DRIVER_STRING,          /* string */
        /*
         * u8 values from enum rdma_nldev_print_type
         */
        RDMA_NLDEV_ATTR_DRIVER_PRINT_TYPE,      /* u8 */
        RDMA_NLDEV_ATTR_DRIVER_S32,             /* s32 */
        RDMA_NLDEV_ATTR_DRIVER_U32,             /* u32 */
        RDMA_NLDEV_ATTR_DRIVER_S64,             /* s64 */
        RDMA_NLDEV_ATTR_DRIVER_U64,             /* u64 */

        /*
         * Indexes to get/set secific entry,
         * for QP use RDMA_NLDEV_ATTR_RES_LQPN
         */
        RDMA_NLDEV_ATTR_RES_PDN,               /* u32 */
        RDMA_NLDEV_ATTR_RES_CQN,               /* u32 */
        RDMA_NLDEV_ATTR_RES_MRN,               /* u32 */
        RDMA_NLDEV_ATTR_RES_CM_IDN,            /* u32 */
        RDMA_NLDEV_ATTR_RES_CTXN,              /* u32 */
        /*
         * Identifies the rdma driver. eg: "rxe" or "siw"
         */
        RDMA_NLDEV_ATTR_LINK_TYPE,              /* string */

        /*
         * net namespace mode for rdma subsystem:
         * either shared or exclusive among multiple net namespaces.
         */
        RDMA_NLDEV_SYS_ATTR_NETNS_MODE,         /* u8 */
        /*
         * Device protocol, e.g. ib, iw, usnic, roce and opa
         */
        RDMA_NLDEV_ATTR_DEV_PROTOCOL,           /* string */

        /*
         * File descriptor handle of the net namespace object
         */
        RDMA_NLDEV_NET_NS_FD,                   /* u32 */
        /*
         * Information about a chardev.
         * CHARDEV_TYPE is the name of the chardev ABI (ie uverbs, umad, etc)
         * CHARDEV_ABI signals the ABI revision (historical)
         * CHARDEV_NAME is the kernel name for the /dev/ file (no directory)
         * CHARDEV is the 64 bit dev_t for the inode
         */
        RDMA_NLDEV_ATTR_CHARDEV_TYPE,           /* string */
        RDMA_NLDEV_ATTR_CHARDEV_NAME,           /* string */
        RDMA_NLDEV_ATTR_CHARDEV_ABI,            /* u64 */
        RDMA_NLDEV_ATTR_CHARDEV,                /* u64 */
        RDMA_NLDEV_ATTR_UVERBS_DRIVER_ID,       /* u64 */
        /*
         * Counter-specific attributes.
         */
        RDMA_NLDEV_ATTR_STAT_MODE,              /* u32 */
        RDMA_NLDEV_ATTR_STAT_RES,               /* u32 */
        RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK,    /* u32 */
        RDMA_NLDEV_ATTR_STAT_COUNTER,           /* nested table */
        RDMA_NLDEV_ATTR_STAT_COUNTER_ENTRY,     /* nested table */
        RDMA_NLDEV_ATTR_STAT_COUNTER_ID,        /* u32 */
        RDMA_NLDEV_ATTR_STAT_HWCOUNTERS,        /* nested table */
        RDMA_NLDEV_ATTR_STAT_HWCOUNTER_ENTRY,   /* nested table */
        RDMA_NLDEV_ATTR_STAT_HWCOUNTER_ENTRY_NAME,      /* string */
        RDMA_NLDEV_ATTR_STAT_HWCOUNTER_ENTRY_VALUE,     /* u64 */

        /*
         * CQ adaptive moderatio (DIM)
         */
        RDMA_NLDEV_ATTR_DEV_DIM,                /* u8 */

        RDMA_NLDEV_ATTR_RES_RAW,        /* binary */

        RDMA_NLDEV_ATTR_RES_CTX,                /* nested table */
        RDMA_NLDEV_ATTR_RES_CTX_ENTRY,          /* nested table */

        RDMA_NLDEV_ATTR_RES_SRQ,                /* nested table */
        RDMA_NLDEV_ATTR_RES_SRQ_ENTRY,          /* nested table */
        RDMA_NLDEV_ATTR_RES_SRQN,               /* u32 */

        RDMA_NLDEV_ATTR_MIN_RANGE,              /* u32 */
        RDMA_NLDEV_ATTR_MAX_RANGE,              /* u32 */

        RDMA_NLDEV_SYS_ATTR_COPY_ON_FORK,       /* u8 */

        /*
         * Always the end
         */
        RDMA_NLDEV_ATTR_MAX
};

/*
 * Supported counter bind modes. All modes are mutual-exclusive.
 */
enum rdma_nl_counter_mode {
        RDMA_COUNTER_MODE_NONE,

        /*
         * A qp is bound with a counter automatically during initialization
         * based on the auto mode (e.g., qp type, ...)
         */
        RDMA_COUNTER_MODE_AUTO,

        /*
         * Which qp are bound with which counter is explicitly specified
         * by the user
         */
        RDMA_COUNTER_MODE_MANUAL,

        /*
         * Always the end
         */
        RDMA_COUNTER_MODE_MAX,
};

/*
 * Supported criteria in counter auto mode.
 * Currently only "qp type" is supported
 */
enum rdma_nl_counter_mask {
        RDMA_COUNTER_MASK_QP_TYPE = 1,
        RDMA_COUNTER_MASK_PID = 1 << 1,
};
#endif /* _RDMA_NETLINK_H */