root/sys/dev/ocs_fc/ocs_ioctl.h
/*-
 * Copyright (c) 2017 Broadcom. All rights reserved.
 * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * 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 HOLDER 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.
 */

/**
 * @file
 * Common declartaions for the driver's IOCTL interface
 */

#if !defined(__OCS_IOCTL_H__)
#define __OCS_IOCTL_H__

/**
 * @brief OCS test ioctl
 *
 * Simple structure for testing the IOCTL interface
 */

typedef struct {
        char string[32];                /**< fixed string buffer */
} ocs_ioctl_test_t;

/**
 * @brief DRIVER_INFO ioctl structure
 *
 * Structure is returned whtn the OCS_IOCTL_CMD_DRIVER_INFO is issued by a user space program.
 */

typedef struct {
        uint16_t pci_vendor;            /**< PCI vender ID value (binary) */
        uint16_t pci_device;            /**< PCI device ID value (binary) */
        char businfo[16];               /**< Bus information (text) */
        uint32_t sli_intf;              /**< SLI_INTF register value (binary) */
        char desc[64];                  /**< description (text) */
        char fw_rev[32];                /**< firmware revision (text) */
        union {
            struct {
                uint8_t wwnn[8];                /**< WWNN (binary) */
                uint8_t wwpn[8];                /**< WWPN (binary) */
            } fc;
            struct {
                uint8_t mac_addr[6];            /**< MAC address (binary) */
                uint8_t reserved[10];
            } iscsi;
        } hw_addr;
        char serialnum[32];             /**< board serial number (text) */
} ocs_ioctl_driver_info_t;

#define ELXU_BSD_MAGIC  0x30584c45

/**
 * @brief IOCTL_CMD_IOCTL_ELXU_MBOX ioctl structure
 *
 * Structure used to submit elxsdkutil mailbox requests for firmware download and
 * dump file retrieveal.
 */

typedef struct {
    uint32_t    magic;                  /**< magic number */
    uint32_t    size;                   /**< size of MBX command */
    uint8_t     payload[256];           /**< MBX command in/out payload buffer */
    uint64_t    in_addr;                /**< user space address of input buffer */
    uint64_t    in_bytes;               /**< length of user space input buffer in bytes */
    uint64_t    out_addr;               /**< user space address of output buffer */
    uint64_t    out_bytes;              /**< length of user space output buffer in bytes */
} ocs_ioctl_elxu_mbox_t;

enum {
        ocs_ioctl_scsi_cmd_loop,        /**< Start command loop */
        ocs_ioctl_scsi_cmd_loop_wait,   /**< Start command loop and wait for completion */
        ocs_ioctl_scsi_cmd_stop,        /**< Stop command loop */
        ocs_ioctl_scsi_cmd,             /**< Start one command */
        ocs_ioctl_scsi_cmd_wait,        /**< Wait for a command to complete */
        ocs_ioctl_scsi_cmd_abort,       /**< Start an abort */
        ocs_ioctl_scsi_cmd_tmf,         /**< Start a tmf */
        ocs_ioctl_els_send,             /**< Start an ELS */
        ocs_ioctl_tgt_logout,           /**< logout of a target */
        ocs_ioctl_scsi_cmd_wait_any,    /**< Wait for any command to complete */
};

enum {
        ocs_ioctl_scsi_cmd_rd = (1U << 0),      /**< direction is read */
        ocs_ioctl_scsi_cmd_wr = (1U << 1),      /**< direction is write */
};

/**
 * @brief OCS_IOCTL_CMD_SCSI_CMD ioctl command structure
 */

typedef enum {
        DIF_OP_DISABLE = 0,
        DIF_OP_IN_NODIF_OUT_CRC,
        DIF_OP_IN_CRC_OUT_NODIF,
        DIF_OP_IN_NODIF_OUT_CHKSUM,
        DIF_OP_IN_CHKSUM_OUT_NODIF,
        DIF_OP_IN_CRC_OUT_CRC,
        DIF_OP_IN_CHKSUM_OUT_CHKSUM,
        DIF_OP_IN_CRC_OUT_CHKSUM,
        DIF_OP_IN_CHKSUM_OUT_CRC,
        DIF_OP_IN_RAW_OUT_RAW,
        } dif_op_t;

#define DIF_OP_PASS_THRU                DIF_OP_IN_CRC_OUT_CRC
#define DIF_OP_STRIP                    DIF_OP_IN_CRC_OUT_NODIF
#define DIF_OP_INSERT                   DIF_OP_IN_NODIF_OUT_CRC

typedef struct {
        dif_op_t dif_op;
        uint32_t
                check_ref_tag:1,        /* check reference tag on initiator writes */
                check_app_tag:1,        /* check application tag on initiator writes */
                check_guard:1,          /* check CRC on initiator writes */
                dif_separate:1;         /* use DIF separate transfers */
        uint32_t ref_tag;               /* DIF reference tag */
        uint16_t app_tag;               /* DIF application tag */
        uint32_t blocksize;             /* DIF blocksize */
} dif_info_t;

typedef struct {
        int command;                    /**< SCSI command request command */
        uint32_t target_idx;            /**< Target device index */
        uint32_t dir;                   /**< rd or wr */
        uint32_t lun;                   /**< lun value */
        int32_t  tmf;                   /**< TMF */
        uint8_t cdb[32];                /**< SCSI CDB */
        uint32_t cdb_len;               /**< SCSI CDB length in bytes */
        uint32_t els_cmd;               /**< ELS command */
        uint32_t flags;                 /**< command flags */
        uint32_t queue_depth;           /**< queue depth for command looping */
        uint32_t payload_length;        /**< payload length for command */
        uint32_t dif_payload_length;    /**< DIF payload length for command if separate */
        uint32_t io_count;              /**< command count for looping */
        uint32_t io_timeout;            /**< IO timeout in seconds (0 = no timeout) */

        uint32_t directio;              /**< If set, DMA to and from user buffers */

        uint32_t first_burst:1;         /**< If true send IO writes with first burst */
        uint32_t first_burst_size;      /**< If first burst is enabled, then this size */

        int32_t wait_timeout_usec;      /**< Wait timeout (usec) for wait, wait_any */

        /* T10-PI */
        dif_info_t dif;                 /* DIF info */

        /* user space buffers */
        void *payload;                  /**< pointer to user space payload buffer */
        void *dif_payload;              /**< pointer to DIF block data if separate */
        uint8_t scsi_status;            /**< SCSI status */
        uint16_t scsi_status_qualifier; /**< SCSI status qualifier */
        void *sense_data;               /**< pointer to sense data buffer */
        uint32_t sense_data_length;     /**< length of sense data buffer (call=buffer leng, return=data written) */
        int32_t residual;               /**< residual */
        uint32_t tag_to_abort;          /**< tag to abort for an abort task request */

        /* return value */
        int32_t status;                 /**< returned status */
        uint32_t data_transferred;      /**< updated with data transferred */
        uint32_t tag;                   /**< returned unique I/O context tag */

        /* for scsi loop */
        uint32_t submit_count;          /**< count of submitted IOs */
        uint32_t complete_count;        /**< count of completed IOs */
} ocs_ioctl_scsi_cmd_t;

/**
 * @brief coredump helper function command values
 */

typedef enum {
        OCS_ECD_HELPER_CFG_READ8,
        OCS_ECD_HELPER_CFG_READ16,
        OCS_ECD_HELPER_CFG_READ32,
        OCS_ECD_HELPER_CFG_WRITE8,
        OCS_ECD_HELPER_CFG_WRITE16,
        OCS_ECD_HELPER_CFG_WRITE32,
        OCS_ECD_HELPER_BAR_READ8,
        OCS_ECD_HELPER_BAR_READ16,
        OCS_ECD_HELPER_BAR_READ32,
        OCS_ECD_HELPER_BAR_WRITE8,
        OCS_ECD_HELPER_BAR_WRITE16,
        OCS_ECD_HELPER_BAR_WRITE32,
} ocs_ecd_helper_cmd_t;

/**
 * @brief OCS_IOCTL_CMD_ECD_HELPER ioctl structure
 */

typedef struct {
        ocs_ecd_helper_cmd_t cmd;       /*<< coredump helper function command */
        uint32_t bar;                   /*<< BAR value to use */
        uint32_t offset;                /*<< offset value to use */
        uint32_t data;                  /*<< 32 bit data value to write or return read data in */
        int status;                     /*<< status of helper function request */
} ocs_ioctl_ecd_helper_t;

/**
 * @brief OCS_IOCTL_CMD_VPORT ioctl structure
 */

typedef struct {
        uint32_t domain_index;          /*<< domain instance index */
        uint32_t req_create:1,          /*<< 1 = create vport, zero = remove vport */
                 enable_ini:1,          /*<< 1 = enable vport as an initiator */
                 enable_tgt:1;          /*<< 1 = enable vport as a target */
        uint64_t wwpn;                  /*<< wwpn to create or delete */
        uint64_t wwnn;                  /*<< wwnn to create or delete */
        int status;                     /*<< status of helper function request */
} ocs_ioctl_vport_t;

/**
 * @brief connection info ioctl structure
 *
 * Structure is returned when the OCS_IOCTL_CMD_CONNECTION_INFO is issued by a user space program.
 */
typedef struct {
        uint32_t connection_handle;
        uint16_t connection_id;
        uint8_t source_ip_type;
        uint8_t source_ip[16];
        uint16_t source_port;
        uint8_t dest_ip_type;
        uint8_t dest_ip[16];
        uint16_t dest_port;
} ocs_ioctl_connection_info_t;

typedef struct {
        uint32_t max_connections;
        uint32_t num_connections;
        ocs_ioctl_connection_info_t *connections;
} ocs_ioctl_connections_t;

/**
 * @brief driver-dump actions
 */

typedef enum {
        OCS_IOCTL_DDUMP_GET,
        OCS_IOCTL_DDUMP_GET_SAVED,
        OCS_IOCTL_DDUMP_CLR_SAVED,
} ocs_ddump_action_t;

#define OCS_IOCTL_DDUMP_FLAGS_WQES      (1U << 0)
#define OCS_IOCTL_DDUMP_FLAGS_CQES      (1U << 1)
#define OCS_IOCTL_DDUMP_FLAGS_MQES      (1U << 2)
#define OCS_IOCTL_DDUMP_FLAGS_RQES      (1U << 3)
#define OCS_IOCTL_DDUMP_FLAGS_EQES      (1U << 4)

typedef struct {
        ocs_ddump_action_t action;
        uint32_t flags;
        uint32_t q_entries;
} ocs_ioctl_ddump_arg_t;

/**
 * @brief OCS_CTL_CMD_GET_DDUMP ioctl structure
 */

typedef struct {
        ocs_ioctl_ddump_arg_t args;     /*<< arguments for ddump */
        uint8_t *user_buffer;           /*<< pointer to user space buffer */
        uint32_t user_buffer_len;       /*<< length in bytes of user space buffer */
        uint32_t bytes_written;         /*<< number of bytes written */
} ocs_ioctl_ddump_t;

/**
 * @brief OCS_CTL_CMD_GET_STATUS, OCS_CTL_CMD_GET_CONFIG
 */

typedef struct {
        uint8_t *user_buffer;           /*<< pointer to user space buffer */
        uint32_t user_buffer_len;       /*<< length in bytes of user space buffer */
        uint32_t bytes_written;         /*<< number of bytes written */
} ocs_ioctl_mgmt_buffer_t;

typedef struct {
        uint8_t         *name;                  /*<< Input: name of property to retrieve */
        uint16_t        name_len;               /*<< Input: Length of name */
        uint8_t         *value;                 /*<< Output: user space buffer in which to place the response */
        uint32_t        value_length;           /*<< Input: size of the user space buffer */
        int             status;                 /*<< Output: command execution status */
} ocs_ioctl_cmd_get_t;

typedef struct {
        uint8_t         *name;                  /*<< Input: name of property to set */
        uint16_t        name_len;               /*<< Input: Length of name */
        uint8_t         *value;                 /*<< Input: user space buffer which contains the new value */
        int32_t         result;                 /*<< Output: result */
} ocs_ioctl_cmd_set_t;

typedef struct {
        uint8_t         *name;                  /*<< Input: name of action to execute */
        uint16_t        name_len;               /*<< Input: Length of name */
        void            *arg_in;                /*<< Input: pointer to argument in user space */
        uint32_t        arg_in_length;          /*<< Input: size of arg_in in bytes */
        void            *arg_out;               /*<< Output: pointer to argument from kernel to user */
        uint32_t        arg_out_length;         /*<< Input: size of arg_out in bytes */
        int32_t         result;                 /*<< Output: result */
} ocs_ioctl_action_t;

#define FC_HEADER_LEN   24
typedef struct {
        uint8_t         fc_header[FC_HEADER_LEN]; /*<< FC Header to send */
        uint8_t         *payload;               /*<< payload */
        uint32_t        payload_len;            /*<< payload length (bytes) */
        uint8_t         sof;                    /*<< SOF value */
        uint8_t         eof;                    /*<< EOF Value */
} ocs_ioctl_send_frame_t;

/*
 * boardtemp (DUMP_TYPE4_WKI_TAG_SAT_TEM) response buffer length.
 */
#define OCS_DUMP_TYPE4_WKI_TAG_SAT_TEM_RESP_LEN (6 * 4)

/**
 * @brief linkcfg strings
 */
#define OCS_CONFIG_LINKCFG_4X10G        "ETH_4x10G"
#define OCS_CONFIG_LINKCFG_1X40G        "ETH_1x40G"
#define OCS_CONFIG_LINKCFG_2X16G        "FC_2x16G"
#define OCS_CONFIG_LINKCFG_4X8G         "FC_4x8G"
#define OCS_CONFIG_LINKCFG_4X1G         "FC_4x1G"
#define OCS_CONFIG_LINKCFG_2X10G        "ETH_2x10G"
#define OCS_CONFIG_LINKCFG_2X10G_2X8G   "ETH_2x10G_FC_2x8G"
#define OCS_CONFIG_LINKCFG_UNKNOWN      "UNKNOWN"

#define OCS_IOCTL_CMD_BASE              'o'
#define OCS_IOCTL_CMD_TEST              _IOWR(OCS_IOCTL_CMD_BASE, 1, ocs_ioctl_test_t)
#define OCS_IOCTL_CMD_ELXU_MBOX         _IOWR(OCS_IOCTL_CMD_BASE, 2, ocs_ioctl_elxu_mbox_t)
#define OCS_IOCTL_CMD_SCSI_CMD          _IOWR(OCS_IOCTL_CMD_BASE, 3, ocs_ioctl_scsi_cmd_t)
#define OCS_IOCTL_CMD_DRIVER_INFO       _IOWR(OCS_IOCTL_CMD_BASE, 4, ocs_ioctl_driver_info_t)
#define OCS_IOCTL_CMD_ECD_HELPER        _IOWR(OCS_IOCTL_CMD_BASE, 5, ocs_ioctl_ecd_helper_t)
#define OCS_IOCTL_CMD_CONNECTION_INFO   _IOWR(OCS_IOCTL_CMD_BASE, 6, ocs_ioctl_connection_info_t)
#define OCS_IOCTL_CMD_VPORT             _IOWR(OCS_IOCTL_CMD_BASE, 7, ocs_ioctl_vport_t)
#define OCS_IOCTL_CMD_GET_DDUMP         _IOWR(OCS_IOCTL_CMD_BASE, 8, ocs_ioctl_ddump_t)
#define OCS_IOCTL_CMD_MGMT_GET          _IOWR(OCS_IOCTL_CMD_BASE, 9, ocs_ioctl_cmd_get_t)
#define OCS_IOCTL_CMD_MGMT_GET_ALL      _IOWR(OCS_IOCTL_CMD_BASE, 10, ocs_ioctl_mgmt_buffer_t)
#define OCS_IOCTL_CMD_MGMT_SET          _IOWR(OCS_IOCTL_CMD_BASE, 11, ocs_ioctl_cmd_set_t)
#define OCS_IOCTL_CMD_MGMT_LIST         _IOWR(OCS_IOCTL_CMD_BASE, 12, ocs_ioctl_mgmt_buffer_t)
#define OCS_IOCTL_CMD_MGMT_EXEC         _IOWR(OCS_IOCTL_CMD_BASE, 13, ocs_ioctl_action_t)
#define OCS_IOCTL_CMD_LINK_ONLINE       _IOWR(OCS_IOCTL_CMD_BASE, 16, int)
#define OCS_IOCTL_CMD_GEN_DUMP          _IOWR(OCS_IOCTL_CMD_BASE, 17, int)
#define OCS_IOCTL_CMD_UNLOAD            _IO(OCS_IOCTL_CMD_BASE, 18)
#define OCS_IOCTL_CMD_SEND_FRAME        _IOWR(OCS_IOCTL_CMD_BASE, 19, ocs_ioctl_send_frame_t)

#endif