bnx2x: credit-leakage fixup on vlan_mac_del_all

[linux-2.6.git] / drivers / net / ethernet / broadcom / bnx2x / bnx2x_sp.h

/* bnx2x_sp.h: Broadcom Everest network driver.
 *
 * Copyright 2011 Broadcom Corporation
 *
 * Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2, available
 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
 *
 * Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a
 * license other than the GPL, without Broadcom's express prior written
 * consent.
 *
 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
 * Written by: Vladislav Zolotarov
 *
 */
#ifndef BNX2X_SP_VERBS
#define BNX2X_SP_VERBS

struct bnx2x;
struct eth_context;

/* Bits representing general command's configuration */
enum {
        RAMROD_TX,
        RAMROD_RX,
        /* Wait until all pending commands complete */
        RAMROD_COMP_WAIT,
        /* Don't send a ramrod, only update a registry */
        RAMROD_DRV_CLR_ONLY,
        /* Configure HW according to the current object state */
        RAMROD_RESTORE,
         /* Execute the next command now */
        RAMROD_EXEC,
        /*
         * Don't add a new command and continue execution of posponed
         * commands. If not set a new command will be added to the
         * pending commands list.
         */
        RAMROD_CONT,
};

typedef enum {
        BNX2X_OBJ_TYPE_RX,
        BNX2X_OBJ_TYPE_TX,
        BNX2X_OBJ_TYPE_RX_TX,
} bnx2x_obj_type;

/* Filtering states */
enum {
        BNX2X_FILTER_MAC_PENDING,
        BNX2X_FILTER_VLAN_PENDING,
        BNX2X_FILTER_VLAN_MAC_PENDING,
        BNX2X_FILTER_RX_MODE_PENDING,
        BNX2X_FILTER_RX_MODE_SCHED,
        BNX2X_FILTER_ISCSI_ETH_START_SCHED,
        BNX2X_FILTER_ISCSI_ETH_STOP_SCHED,
        BNX2X_FILTER_FCOE_ETH_START_SCHED,
        BNX2X_FILTER_FCOE_ETH_STOP_SCHED,
        BNX2X_FILTER_MCAST_PENDING,
        BNX2X_FILTER_MCAST_SCHED,
        BNX2X_FILTER_RSS_CONF_PENDING,
};

struct bnx2x_raw_obj {
        u8              func_id;

        /* Queue params */
        u8              cl_id;
        u32             cid;

        /* Ramrod data buffer params */
        void            *rdata;
        dma_addr_t      rdata_mapping;

        /* Ramrod state params */
        int             state;   /* "ramrod is pending" state bit */
        unsigned long   *pstate; /* pointer to state buffer */

        bnx2x_obj_type  obj_type;

        int (*wait_comp)(struct bnx2x *bp,
                         struct bnx2x_raw_obj *o);

        bool (*check_pending)(struct bnx2x_raw_obj *o);
        void (*clear_pending)(struct bnx2x_raw_obj *o);
        void (*set_pending)(struct bnx2x_raw_obj *o);
};

/************************* VLAN-MAC commands related parameters ***************/
struct bnx2x_mac_ramrod_data {
        u8 mac[ETH_ALEN];
};

struct bnx2x_vlan_ramrod_data {
        u16 vlan;
};

struct bnx2x_vlan_mac_ramrod_data {
        u8 mac[ETH_ALEN];
        u16 vlan;
};

union bnx2x_classification_ramrod_data {
        struct bnx2x_mac_ramrod_data mac;
        struct bnx2x_vlan_ramrod_data vlan;
        struct bnx2x_vlan_mac_ramrod_data vlan_mac;
};

/* VLAN_MAC commands */
enum bnx2x_vlan_mac_cmd {
        BNX2X_VLAN_MAC_ADD,
        BNX2X_VLAN_MAC_DEL,
        BNX2X_VLAN_MAC_MOVE,
};

struct bnx2x_vlan_mac_data {
        /* Requested command: BNX2X_VLAN_MAC_XX */
        enum bnx2x_vlan_mac_cmd cmd;
        /*
         * used to contain the data related vlan_mac_flags bits from
         * ramrod parameters.
         */
        unsigned long vlan_mac_flags;

        /* Needed for MOVE command */
        struct bnx2x_vlan_mac_obj *target_obj;

        union bnx2x_classification_ramrod_data u;
};

/*************************** Exe Queue obj ************************************/
union bnx2x_exe_queue_cmd_data {
        struct bnx2x_vlan_mac_data vlan_mac;

        struct {
                /* TODO */
        } mcast;
};

struct bnx2x_exeq_elem {
        struct list_head                link;

        /* Length of this element in the exe_chunk. */
        int                             cmd_len;

        union bnx2x_exe_queue_cmd_data  cmd_data;
};

union bnx2x_qable_obj;

union bnx2x_exeq_comp_elem {
        union event_ring_elem *elem;
};

struct bnx2x_exe_queue_obj;

typedef int (*exe_q_validate)(struct bnx2x *bp,
                              union bnx2x_qable_obj *o,
                              struct bnx2x_exeq_elem *elem);

typedef int (*exe_q_remove)(struct bnx2x *bp,
                            union bnx2x_qable_obj *o,
                            struct bnx2x_exeq_elem *elem);

/**
 * @return positive is entry was optimized, 0 - if not, negative
 *         in case of an error.
 */
typedef int (*exe_q_optimize)(struct bnx2x *bp,
                              union bnx2x_qable_obj *o,
                              struct bnx2x_exeq_elem *elem);
typedef int (*exe_q_execute)(struct bnx2x *bp,
                             union bnx2x_qable_obj *o,
                             struct list_head *exe_chunk,
                             unsigned long *ramrod_flags);
typedef struct bnx2x_exeq_elem *
                        (*exe_q_get)(struct bnx2x_exe_queue_obj *o,
                                     struct bnx2x_exeq_elem *elem);

struct bnx2x_exe_queue_obj {
        /*
         * Commands pending for an execution.
         */
        struct list_head        exe_queue;

        /*
         * Commands pending for an completion.
         */
        struct list_head        pending_comp;

        spinlock_t              lock;

        /* Maximum length of commands' list for one execution */
        int                     exe_chunk_len;

        union bnx2x_qable_obj   *owner;

        /****** Virtual functions ******/
        /**
         * Called before commands execution for commands that are really
         * going to be executed (after 'optimize').
         *
         * Must run under exe_queue->lock
         */
        exe_q_validate          validate;

        /**
         * Called before removing pending commands, cleaning allocated
         * resources (e.g., credits from validate)
         */
         exe_q_remove           remove;

        /**
         * This will try to cancel the current pending commands list
         * considering the new command.
         *
         * Returns the number of optimized commands or a negative error code
         *
         * Must run under exe_queue->lock
         */
        exe_q_optimize          optimize;

        /**
         * Run the next commands chunk (owner specific).
         */
        exe_q_execute           execute;

        /**
         * Return the exe_queue element containing the specific command
         * if any. Otherwise return NULL.
         */
        exe_q_get               get;
};
/***************** Classification verbs: Set/Del MAC/VLAN/VLAN-MAC ************/
/*
 * Element in the VLAN_MAC registry list having all currenty configured
 * rules.
 */
struct bnx2x_vlan_mac_registry_elem {
        struct list_head        link;

        /*
         * Used to store the cam offset used for the mac/vlan/vlan-mac.
         * Relevant for 57710 and 57711 only. VLANs and MACs share the
         * same CAM for these chips.
         */
        int                     cam_offset;

        /* Needed for DEL and RESTORE flows */
        unsigned long           vlan_mac_flags;

        union bnx2x_classification_ramrod_data u;
};

/* Bits representing VLAN_MAC commands specific flags */
enum {
        BNX2X_UC_LIST_MAC,
        BNX2X_ETH_MAC,
        BNX2X_ISCSI_ETH_MAC,
        BNX2X_NETQ_ETH_MAC,
        BNX2X_DONT_CONSUME_CAM_CREDIT,
        BNX2X_DONT_CONSUME_CAM_CREDIT_DEST,
};

struct bnx2x_vlan_mac_ramrod_params {
        /* Object to run the command from */
        struct bnx2x_vlan_mac_obj *vlan_mac_obj;

        /* General command flags: COMP_WAIT, etc. */
        unsigned long ramrod_flags;

        /* Command specific configuration request */
        struct bnx2x_vlan_mac_data user_req;
};

struct bnx2x_vlan_mac_obj {
        struct bnx2x_raw_obj raw;

        /* Bookkeeping list: will prevent the addition of already existing
         * entries.
         */
        struct list_head                head;

        /* TODO: Add it's initialization in the init functions */
        struct bnx2x_exe_queue_obj      exe_queue;

        /* MACs credit pool */
        struct bnx2x_credit_pool_obj    *macs_pool;

        /* VLANs credit pool */
        struct bnx2x_credit_pool_obj    *vlans_pool;

        /* RAMROD command to be used */
        int                             ramrod_cmd;

        /* copy first n elements onto preallocated buffer
         *
         * @param n number of elements to get
         * @param buf buffer preallocated by caller into which elements
         *            will be copied. Note elements are 4-byte aligned
         *            so buffer size must be able to accomodate the
         *            aligned elements.
         *
         * @return number of copied bytes
         */
        int (*get_n_elements)(struct bnx2x *bp, struct bnx2x_vlan_mac_obj *o,
                              int n, u8 *buf);

        /**
         * Checks if ADD-ramrod with the given params may be performed.
         *
         * @return zero if the element may be added
         */

        int (*check_add)(struct bnx2x_vlan_mac_obj *o,
                         union bnx2x_classification_ramrod_data *data);

        /**
         * Checks if DEL-ramrod with the given params may be performed.
         *
         * @return true if the element may be deleted
         */
        struct bnx2x_vlan_mac_registry_elem *
                (*check_del)(struct bnx2x_vlan_mac_obj *o,
                             union bnx2x_classification_ramrod_data *data);

        /**
         * Checks if DEL-ramrod with the given params may be performed.
         *
         * @return true if the element may be deleted
         */
        bool (*check_move)(struct bnx2x_vlan_mac_obj *src_o,
                           struct bnx2x_vlan_mac_obj *dst_o,
                           union bnx2x_classification_ramrod_data *data);

        /**
         *  Update the relevant credit object(s) (consume/return
         *  correspondingly).
         */
        bool (*get_credit)(struct bnx2x_vlan_mac_obj *o);
        bool (*put_credit)(struct bnx2x_vlan_mac_obj *o);
        bool (*get_cam_offset)(struct bnx2x_vlan_mac_obj *o, int *offset);
        bool (*put_cam_offset)(struct bnx2x_vlan_mac_obj *o, int offset);

        /**
         * Configures one rule in the ramrod data buffer.
         */
        void (*set_one_rule)(struct bnx2x *bp,
                             struct bnx2x_vlan_mac_obj *o,
                             struct bnx2x_exeq_elem *elem, int rule_idx,
                             int cam_offset);

        /**
        *  Delete all configured elements having the given
        *  vlan_mac_flags specification. Assumes no pending for
        *  execution commands. Will schedule all all currently
        *  configured MACs/VLANs/VLAN-MACs matching the vlan_mac_flags
        *  specification for deletion and will use the given
        *  ramrod_flags for the last DEL operation.
         *
         * @param bp
         * @param o
         * @param ramrod_flags RAMROD_XX flags
         *
         * @return 0 if the last operation has completed successfully
         *         and there are no more elements left, positive value
         *         if there are pending for completion commands,
         *         negative value in case of failure.
         */
        int (*delete_all)(struct bnx2x *bp,
                          struct bnx2x_vlan_mac_obj *o,
                          unsigned long *vlan_mac_flags,
                          unsigned long *ramrod_flags);

        /**
         * Reconfigures the next MAC/VLAN/VLAN-MAC element from the previously
         * configured elements list.
         *
         * @param bp
         * @param p Command parameters (RAMROD_COMP_WAIT bit in
         *          ramrod_flags is only taken into an account)
         * @param ppos a pointer to the cooky that should be given back in the
         *        next call to make function handle the next element. If
         *        *ppos is set to NULL it will restart the iterator.
         *        If returned *ppos == NULL this means that the last
         *        element has been handled.
         *
         * @return int
         */
        int (*restore)(struct bnx2x *bp,
                       struct bnx2x_vlan_mac_ramrod_params *p,
                       struct bnx2x_vlan_mac_registry_elem **ppos);

        /**
         * Should be called on a completion arival.
         *
         * @param bp
         * @param o
         * @param cqe Completion element we are handling
         * @param ramrod_flags if RAMROD_CONT is set the next bulk of
         *                     pending commands will be executed.
         *                     RAMROD_DRV_CLR_ONLY and RAMROD_RESTORE
         *                     may also be set if needed.
         *
         * @return 0 if there are neither pending nor waiting for
         *         completion commands. Positive value if there are
         *         pending for execution or for completion commands.
         *         Negative value in case of an error (including an
         *         error in the cqe).
         */
        int (*complete)(struct bnx2x *bp, struct bnx2x_vlan_mac_obj *o,
                        union event_ring_elem *cqe,
                        unsigned long *ramrod_flags);

        /**
         * Wait for completion of all commands. Don't schedule new ones,
         * just wait. It assumes that the completion code will schedule
         * for new commands.
         */
        int (*wait)(struct bnx2x *bp, struct bnx2x_vlan_mac_obj *o);
};

/** RX_MODE verbs:DROP_ALL/ACCEPT_ALL/ACCEPT_ALL_MULTI/ACCEPT_ALL_VLAN/NORMAL */

/* RX_MODE ramrod spesial flags: set in rx_mode_flags field in
 * a bnx2x_rx_mode_ramrod_params.
 */
enum {
        BNX2X_RX_MODE_FCOE_ETH,
        BNX2X_RX_MODE_ISCSI_ETH,
};

enum {
        BNX2X_ACCEPT_UNICAST,
        BNX2X_ACCEPT_MULTICAST,
        BNX2X_ACCEPT_ALL_UNICAST,
        BNX2X_ACCEPT_ALL_MULTICAST,
        BNX2X_ACCEPT_BROADCAST,
        BNX2X_ACCEPT_UNMATCHED,
        BNX2X_ACCEPT_ANY_VLAN
};

struct bnx2x_rx_mode_ramrod_params {
        struct bnx2x_rx_mode_obj *rx_mode_obj;
        unsigned long *pstate;
        int state;
        u8 cl_id;
        u32 cid;
        u8 func_id;
        unsigned long ramrod_flags;
        unsigned long rx_mode_flags;

        /*
         * rdata is either a pointer to eth_filter_rules_ramrod_data(e2) or to
         * a tstorm_eth_mac_filter_config (e1x).
         */
        void *rdata;
        dma_addr_t rdata_mapping;

        /* Rx mode settings */
        unsigned long rx_accept_flags;

        /* internal switching settings */
        unsigned long tx_accept_flags;
};

struct bnx2x_rx_mode_obj {
        int (*config_rx_mode)(struct bnx2x *bp,
                              struct bnx2x_rx_mode_ramrod_params *p);

        int (*wait_comp)(struct bnx2x *bp,
                         struct bnx2x_rx_mode_ramrod_params *p);
};

/********************** Set multicast group ***********************************/

struct bnx2x_mcast_list_elem {
        struct list_head link;
        u8 *mac;
};

union bnx2x_mcast_config_data {
        u8 *mac;
        u8 bin; /* used in a RESTORE flow */
};

struct bnx2x_mcast_ramrod_params {
        struct bnx2x_mcast_obj *mcast_obj;

        /* Relevant options are RAMROD_COMP_WAIT and RAMROD_DRV_CLR_ONLY */
        unsigned long ramrod_flags;

        struct list_head mcast_list; /* list of struct bnx2x_mcast_list_elem */
        /** TODO:
         *      - rename it to macs_num.
         *      - Add a new command type for handling pending commands
         *        (remove "zero semantics").
         *
         *  Length of mcast_list. If zero and ADD_CONT command - post
         *  pending commands.
         */
        int mcast_list_len;
};

enum {
        BNX2X_MCAST_CMD_ADD,
        BNX2X_MCAST_CMD_CONT,
        BNX2X_MCAST_CMD_DEL,
        BNX2X_MCAST_CMD_RESTORE,
};

struct bnx2x_mcast_obj {
        struct bnx2x_raw_obj raw;

        union {
                struct {
                #define BNX2X_MCAST_BINS_NUM    256
                #define BNX2X_MCAST_VEC_SZ      (BNX2X_MCAST_BINS_NUM / 64)
                        u64 vec[BNX2X_MCAST_VEC_SZ];

                        /** Number of BINs to clear. Should be updated
                         *  immediately when a command arrives in order to
                         *  properly create DEL commands.
                         */
                        int num_bins_set;
                } aprox_match;

                struct {
                        struct list_head macs;
                        int num_macs_set;
                } exact_match;
        } registry;

        /* Pending commands */
        struct list_head pending_cmds_head;

        /* A state that is set in raw.pstate, when there are pending commands */
        int sched_state;

        /* Maximal number of mcast MACs configured in one command */
        int max_cmd_len;

        /* Total number of currently pending MACs to configure: both
         * in the pending commands list and in the current command.
         */
        int total_pending_num;

        u8 engine_id;

        /**
         * @param cmd command to execute (BNX2X_MCAST_CMD_X, see above)
         */
        int (*config_mcast)(struct bnx2x *bp,
                                struct bnx2x_mcast_ramrod_params *p, int cmd);

        /**
         * Fills the ramrod data during the RESTORE flow.
         *
         * @param bp
         * @param o
         * @param start_idx Registry index to start from
         * @param rdata_idx Index in the ramrod data to start from
         *
         * @return -1 if we handled the whole registry or index of the last
         *         handled registry element.
         */
        int (*hdl_restore)(struct bnx2x *bp, struct bnx2x_mcast_obj *o,
                           int start_bin, int *rdata_idx);

        int (*enqueue_cmd)(struct bnx2x *bp, struct bnx2x_mcast_obj *o,
                           struct bnx2x_mcast_ramrod_params *p, int cmd);

        void (*set_one_rule)(struct bnx2x *bp,
                             struct bnx2x_mcast_obj *o, int idx,
                             union bnx2x_mcast_config_data *cfg_data, int cmd);

        /** Checks if there are more mcast MACs to be set or a previous
         *  command is still pending.
         */
        bool (*check_pending)(struct bnx2x_mcast_obj *o);

        /**
         * Set/Clear/Check SCHEDULED state of the object
         */
        void (*set_sched)(struct bnx2x_mcast_obj *o);
        void (*clear_sched)(struct bnx2x_mcast_obj *o);
        bool (*check_sched)(struct bnx2x_mcast_obj *o);

        /* Wait until all pending commands complete */
        int (*wait_comp)(struct bnx2x *bp, struct bnx2x_mcast_obj *o);

        /**
         * Handle the internal object counters needed for proper
         * commands handling. Checks that the provided parameters are
         * feasible.
         */
        int (*validate)(struct bnx2x *bp,
                        struct bnx2x_mcast_ramrod_params *p, int cmd);

        /**
         * Restore the values of internal counters in case of a failure.
         */
        void (*revert)(struct bnx2x *bp,
                       struct bnx2x_mcast_ramrod_params *p,
                       int old_num_bins);

        int (*get_registry_size)(struct bnx2x_mcast_obj *o);
        void (*set_registry_size)(struct bnx2x_mcast_obj *o, int n);
};

/*************************** Credit handling **********************************/
struct bnx2x_credit_pool_obj {

        /* Current amount of credit in the pool */
        atomic_t        credit;

        /* Maximum allowed credit. put() will check against it. */
        int             pool_sz;

        /*
         *  Allocate a pool table statically.
         *
         *  Currently the mamimum allowed size is MAX_MAC_CREDIT_E2(272)
         *
         *  The set bit in the table will mean that the entry is available.
         */
#define BNX2X_POOL_VEC_SIZE     (MAX_MAC_CREDIT_E2 / 64)
        u64             pool_mirror[BNX2X_POOL_VEC_SIZE];

        /* Base pool offset (initialized differently */
        int             base_pool_offset;

        /**
         * Get the next free pool entry.
         *
         * @return true if there was a free entry in the pool
         */
        bool (*get_entry)(struct bnx2x_credit_pool_obj *o, int *entry);

        /**
         * Return the entry back to the pool.
         *
         * @return true if entry is legal and has been successfully
         *         returned to the pool.
         */
        bool (*put_entry)(struct bnx2x_credit_pool_obj *o, int entry);

        /**
         * Get the requested amount of credit from the pool.
         *
         * @param cnt Amount of requested credit
         * @return true if the operation is successful
         */
        bool (*get)(struct bnx2x_credit_pool_obj *o, int cnt);

        /**
         * Returns the credit to the pool.
         *
         * @param cnt Amount of credit to return
         * @return true if the operation is successful
         */
        bool (*put)(struct bnx2x_credit_pool_obj *o, int cnt);

        /**
         * Reads the current amount of credit.
         */
        int (*check)(struct bnx2x_credit_pool_obj *o);
};

/*************************** RSS configuration ********************************/
enum {
        /* RSS_MODE bits are mutually exclusive */
        BNX2X_RSS_MODE_DISABLED,
        BNX2X_RSS_MODE_REGULAR,
        BNX2X_RSS_MODE_VLAN_PRI,
        BNX2X_RSS_MODE_E1HOV_PRI,
        BNX2X_RSS_MODE_IP_DSCP,

        BNX2X_RSS_SET_SRCH, /* Setup searcher, E1x specific flag */

        BNX2X_RSS_IPV4,
        BNX2X_RSS_IPV4_TCP,
        BNX2X_RSS_IPV6,
        BNX2X_RSS_IPV6_TCP,
};

struct bnx2x_config_rss_params {
        struct bnx2x_rss_config_obj *rss_obj;

        /* may have RAMROD_COMP_WAIT set only */
        unsigned long   ramrod_flags;

        /* BNX2X_RSS_X bits */
        unsigned long   rss_flags;

        /* Number hash bits to take into an account */
        u8              rss_result_mask;

        /* Indirection table */
        u8              ind_table[T_ETH_INDIRECTION_TABLE_SIZE];

        /* RSS hash values */
        u32             rss_key[10];

        /* valid only iff BNX2X_RSS_UPDATE_TOE is set */
        u16             toe_rss_bitmap;
};

struct bnx2x_rss_config_obj {
        struct bnx2x_raw_obj    raw;

        /* RSS engine to use */
        u8                      engine_id;

        /* Last configured indirection table */
        u8                      ind_table[T_ETH_INDIRECTION_TABLE_SIZE];

        int (*config_rss)(struct bnx2x *bp,
                          struct bnx2x_config_rss_params *p);
};

/*********************** Queue state update ***********************************/

/* UPDATE command options */
enum {
        BNX2X_Q_UPDATE_IN_VLAN_REM,
        BNX2X_Q_UPDATE_IN_VLAN_REM_CHNG,
        BNX2X_Q_UPDATE_OUT_VLAN_REM,
        BNX2X_Q_UPDATE_OUT_VLAN_REM_CHNG,
        BNX2X_Q_UPDATE_ANTI_SPOOF,
        BNX2X_Q_UPDATE_ANTI_SPOOF_CHNG,
        BNX2X_Q_UPDATE_ACTIVATE,
        BNX2X_Q_UPDATE_ACTIVATE_CHNG,
        BNX2X_Q_UPDATE_DEF_VLAN_EN,
        BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG,
        BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
        BNX2X_Q_UPDATE_SILENT_VLAN_REM
};

/* Allowed Queue states */
enum bnx2x_q_state {
        BNX2X_Q_STATE_RESET,
        BNX2X_Q_STATE_INITIALIZED,
        BNX2X_Q_STATE_ACTIVE,
        BNX2X_Q_STATE_MULTI_COS,
        BNX2X_Q_STATE_MCOS_TERMINATED,
        BNX2X_Q_STATE_INACTIVE,
        BNX2X_Q_STATE_STOPPED,
        BNX2X_Q_STATE_TERMINATED,
        BNX2X_Q_STATE_FLRED,
        BNX2X_Q_STATE_MAX,
};

/* Allowed commands */
enum bnx2x_queue_cmd {
        BNX2X_Q_CMD_INIT,
        BNX2X_Q_CMD_SETUP,
        BNX2X_Q_CMD_SETUP_TX_ONLY,
        BNX2X_Q_CMD_DEACTIVATE,
        BNX2X_Q_CMD_ACTIVATE,
        BNX2X_Q_CMD_UPDATE,
        BNX2X_Q_CMD_UPDATE_TPA,
        BNX2X_Q_CMD_HALT,
        BNX2X_Q_CMD_CFC_DEL,
        BNX2X_Q_CMD_TERMINATE,
        BNX2X_Q_CMD_EMPTY,
        BNX2X_Q_CMD_MAX,
};

/* queue SETUP + INIT flags */
enum {
        BNX2X_Q_FLG_TPA,
        BNX2X_Q_FLG_TPA_IPV6,
        BNX2X_Q_FLG_STATS,
        BNX2X_Q_FLG_ZERO_STATS,
        BNX2X_Q_FLG_ACTIVE,
        BNX2X_Q_FLG_OV,
        BNX2X_Q_FLG_VLAN,
        BNX2X_Q_FLG_COS,
        BNX2X_Q_FLG_HC,
        BNX2X_Q_FLG_HC_EN,
        BNX2X_Q_FLG_DHC,
        BNX2X_Q_FLG_FCOE,
        BNX2X_Q_FLG_LEADING_RSS,
        BNX2X_Q_FLG_MCAST,
        BNX2X_Q_FLG_DEF_VLAN,
        BNX2X_Q_FLG_TX_SWITCH,
        BNX2X_Q_FLG_TX_SEC,
        BNX2X_Q_FLG_ANTI_SPOOF,
        BNX2X_Q_FLG_SILENT_VLAN_REM
};

/* Queue type options: queue type may be a compination of below. */
enum bnx2x_q_type {
        /** TODO: Consider moving both these flags into the init()
         *        ramrod params.
         */
        BNX2X_Q_TYPE_HAS_RX,
        BNX2X_Q_TYPE_HAS_TX,
};

#define BNX2X_PRIMARY_CID_INDEX                 0
#define BNX2X_MULTI_TX_COS_E1X                  1
#define BNX2X_MULTI_TX_COS_E2_E3A0              2
#define BNX2X_MULTI_TX_COS_E3B0                 3
#define BNX2X_MULTI_TX_COS                      BNX2X_MULTI_TX_COS_E3B0


struct bnx2x_queue_init_params {
        struct {
                unsigned long   flags;
                u16             hc_rate;
                u8              fw_sb_id;
                u8              sb_cq_index;
        } tx;

        struct {
                unsigned long   flags;
                u16             hc_rate;
                u8              fw_sb_id;
                u8              sb_cq_index;
        } rx;

        /* CID context in the host memory */
        struct eth_context *cxts[BNX2X_MULTI_TX_COS];

        /* maximum number of cos supported by hardware */
        u8 max_cos;
};

struct bnx2x_queue_terminate_params {
        /* index within the tx_only cids of this queue object */
        u8 cid_index;
};

struct bnx2x_queue_cfc_del_params {
        /* index within the tx_only cids of this queue object */
        u8 cid_index;
};

struct bnx2x_queue_update_params {
        unsigned long   update_flags; /* BNX2X_Q_UPDATE_XX bits */
        u16             def_vlan;
        u16             silent_removal_value;
        u16             silent_removal_mask;
/* index within the tx_only cids of this queue object */
        u8              cid_index;
};

struct rxq_pause_params {
        u16             bd_th_lo;
        u16             bd_th_hi;
        u16             rcq_th_lo;
        u16             rcq_th_hi;
        u16             sge_th_lo; /* valid iff BNX2X_Q_FLG_TPA */
        u16             sge_th_hi; /* valid iff BNX2X_Q_FLG_TPA */
        u16             pri_map;
};

/* general */
struct bnx2x_general_setup_params {
        /* valid iff BNX2X_Q_FLG_STATS */
        u8              stat_id;

        u8              spcl_id;
        u16             mtu;
        u8              cos;
};

struct bnx2x_rxq_setup_params {
        /* dma */
        dma_addr_t      dscr_map;
        dma_addr_t      sge_map;
        dma_addr_t      rcq_map;
        dma_addr_t      rcq_np_map;

        u16             drop_flags;
        u16             buf_sz;
        u8              fw_sb_id;
        u8              cl_qzone_id;

        /* valid iff BNX2X_Q_FLG_TPA */
        u16             tpa_agg_sz;
        u16             sge_buf_sz;
        u8              max_sges_pkt;
        u8              max_tpa_queues;
        u8              rss_engine_id;

        u8              cache_line_log;

        u8              sb_cq_index;

        /* valid iff BXN2X_Q_FLG_SILENT_VLAN_REM */
        u16 silent_removal_value;
        u16 silent_removal_mask;
};

struct bnx2x_txq_setup_params {
        /* dma */
        dma_addr_t      dscr_map;

        u8              fw_sb_id;
        u8              sb_cq_index;
        u8              cos;            /* valid iff BNX2X_Q_FLG_COS */
        u16             traffic_type;
        /* equals to the leading rss client id, used for TX classification*/
        u8              tss_leading_cl_id;

        /* valid iff BNX2X_Q_FLG_DEF_VLAN */
        u16             default_vlan;
};

struct bnx2x_queue_setup_params {
        struct bnx2x_general_setup_params gen_params;
        struct bnx2x_txq_setup_params txq_params;
        struct bnx2x_rxq_setup_params rxq_params;
        struct rxq_pause_params pause_params;
        unsigned long flags;
};

struct bnx2x_queue_setup_tx_only_params {
        struct bnx2x_general_setup_params       gen_params;
        struct bnx2x_txq_setup_params           txq_params;
        unsigned long                           flags;
        /* index within the tx_only cids of this queue object */
        u8                                      cid_index;
};

struct bnx2x_queue_state_params {
        struct bnx2x_queue_sp_obj *q_obj;

        /* Current command */
        enum bnx2x_queue_cmd cmd;

        /* may have RAMROD_COMP_WAIT set only */
        unsigned long ramrod_flags;

        /* Params according to the current command */
        union {
                struct bnx2x_queue_update_params        update;
                struct bnx2x_queue_setup_params         setup;
                struct bnx2x_queue_init_params          init;
                struct bnx2x_queue_setup_tx_only_params tx_only;
                struct bnx2x_queue_terminate_params     terminate;
                struct bnx2x_queue_cfc_del_params       cfc_del;
        } params;
};

struct bnx2x_queue_sp_obj {
        u32             cids[BNX2X_MULTI_TX_COS];
        u8              cl_id;
        u8              func_id;

        /*
         * number of traffic classes supported by queue.
         * The primary connection of the queue suppotrs the first traffic
         * class. Any further traffic class is suppoted by a tx-only
         * connection.
         *
         * Therefore max_cos is also a number of valid entries in the cids
         * array.
         */
        u8 max_cos;
        u8 num_tx_only, next_tx_only;

        enum bnx2x_q_state state, next_state;

        /* bits from enum bnx2x_q_type */
        unsigned long   type;

        /* BNX2X_Q_CMD_XX bits. This object implements "one
         * pending" paradigm but for debug and tracing purposes it's
         * more convinient to have different bits for different
         * commands.
         */
        unsigned long   pending;

        /* Buffer to use as a ramrod data and its mapping */
        void            *rdata;
        dma_addr_t      rdata_mapping;

        /**
         * Performs one state change according to the given parameters.
         *
         * @return 0 in case of success and negative value otherwise.
         */
        int (*send_cmd)(struct bnx2x *bp,
                        struct bnx2x_queue_state_params *params);

        /**
         * Sets the pending bit according to the requested transition.
         */
        int (*set_pending)(struct bnx2x_queue_sp_obj *o,
                           struct bnx2x_queue_state_params *params);

        /**
         * Checks that the requested state transition is legal.
         */
        int (*check_transition)(struct bnx2x *bp,
                                struct bnx2x_queue_sp_obj *o,
                                struct bnx2x_queue_state_params *params);

        /**
         * Completes the pending command.
         */
        int (*complete_cmd)(struct bnx2x *bp,
                            struct bnx2x_queue_sp_obj *o,
                            enum bnx2x_queue_cmd);

        int (*wait_comp)(struct bnx2x *bp,
                         struct bnx2x_queue_sp_obj *o,
                         enum bnx2x_queue_cmd cmd);
};

/********************** Function state update *********************************/
/* Allowed Function states */
enum bnx2x_func_state {
        BNX2X_F_STATE_RESET,
        BNX2X_F_STATE_INITIALIZED,
        BNX2X_F_STATE_STARTED,
        BNX2X_F_STATE_TX_STOPPED,
        BNX2X_F_STATE_MAX,
};

/* Allowed Function commands */
enum bnx2x_func_cmd {
        BNX2X_F_CMD_HW_INIT,
        BNX2X_F_CMD_START,
        BNX2X_F_CMD_STOP,
        BNX2X_F_CMD_HW_RESET,
        BNX2X_F_CMD_TX_STOP,
        BNX2X_F_CMD_TX_START,
        BNX2X_F_CMD_MAX,
};

struct bnx2x_func_hw_init_params {
        /* A load phase returned by MCP.
         *
         * May be:
         *              FW_MSG_CODE_DRV_LOAD_COMMON_CHIP
         *              FW_MSG_CODE_DRV_LOAD_COMMON
         *              FW_MSG_CODE_DRV_LOAD_PORT
         *              FW_MSG_CODE_DRV_LOAD_FUNCTION
         */
        u32 load_phase;
};

struct bnx2x_func_hw_reset_params {
        /* A load phase returned by MCP.
         *
         * May be:
         *              FW_MSG_CODE_DRV_LOAD_COMMON_CHIP
         *              FW_MSG_CODE_DRV_LOAD_COMMON
         *              FW_MSG_CODE_DRV_LOAD_PORT
         *              FW_MSG_CODE_DRV_LOAD_FUNCTION
         */
        u32 reset_phase;
};

struct bnx2x_func_start_params {
        /* Multi Function mode:
         *      - Single Function
         *      - Switch Dependent
         *      - Switch Independent
         */
        u16 mf_mode;

        /* Switch Dependent mode outer VLAN tag */
        u16 sd_vlan_tag;

        /* Function cos mode */
        u8 network_cos_mode;
};

struct bnx2x_func_tx_start_params {
        struct priority_cos traffic_type_to_priority_cos[MAX_TRAFFIC_TYPES];
        u8 dcb_enabled;
        u8 dcb_version;
        u8 dont_add_pri_0_en;
};

struct bnx2x_func_state_params {
        struct bnx2x_func_sp_obj *f_obj;

        /* Current command */
        enum bnx2x_func_cmd cmd;

        /* may have RAMROD_COMP_WAIT set only */
        unsigned long   ramrod_flags;

        /* Params according to the current command */
        union {
                struct bnx2x_func_hw_init_params hw_init;
                struct bnx2x_func_hw_reset_params hw_reset;
                struct bnx2x_func_start_params start;
                struct bnx2x_func_tx_start_params tx_start;
        } params;
};

struct bnx2x_func_sp_drv_ops {
        /* Init tool + runtime initialization:
         *      - Common Chip
         *      - Common (per Path)
         *      - Port
         *      - Function phases
         */
        int (*init_hw_cmn_chip)(struct bnx2x *bp);
        int (*init_hw_cmn)(struct bnx2x *bp);
        int (*init_hw_port)(struct bnx2x *bp);
        int (*init_hw_func)(struct bnx2x *bp);

        /* Reset Function HW: Common, Port, Function phases. */
        void (*reset_hw_cmn)(struct bnx2x *bp);
        void (*reset_hw_port)(struct bnx2x *bp);
        void (*reset_hw_func)(struct bnx2x *bp);

        /* Init/Free GUNZIP resources */
        int (*gunzip_init)(struct bnx2x *bp);
        void (*gunzip_end)(struct bnx2x *bp);

        /* Prepare/Release FW resources */
        int (*init_fw)(struct bnx2x *bp);
        void (*release_fw)(struct bnx2x *bp);
};

struct bnx2x_func_sp_obj {
        enum bnx2x_func_state   state, next_state;

        /* BNX2X_FUNC_CMD_XX bits. This object implements "one
         * pending" paradigm but for debug and tracing purposes it's
         * more convinient to have different bits for different
         * commands.
         */
        unsigned long           pending;

        /* Buffer to use as a ramrod data and its mapping */
        void                    *rdata;
        dma_addr_t              rdata_mapping;

        /* this mutex validates that when pending flag is taken, the next
         * ramrod to be sent will be the one set the pending bit
         */
        struct mutex            one_pending_mutex;

        /* Driver interface */
        struct bnx2x_func_sp_drv_ops    *drv;

        /**
         * Performs one state change according to the given parameters.
         *
         * @return 0 in case of success and negative value otherwise.
         */
        int (*send_cmd)(struct bnx2x *bp,
                        struct bnx2x_func_state_params *params);

        /**
         * Checks that the requested state transition is legal.
         */
        int (*check_transition)(struct bnx2x *bp,
                                struct bnx2x_func_sp_obj *o,
                                struct bnx2x_func_state_params *params);

        /**
         * Completes the pending command.
         */
        int (*complete_cmd)(struct bnx2x *bp,
                            struct bnx2x_func_sp_obj *o,
                            enum bnx2x_func_cmd cmd);

        int (*wait_comp)(struct bnx2x *bp, struct bnx2x_func_sp_obj *o,
                         enum bnx2x_func_cmd cmd);
};

/********************** Interfaces ********************************************/
/* Queueable objects set */
union bnx2x_qable_obj {
        struct bnx2x_vlan_mac_obj vlan_mac;
};
/************** Function state update *********/
void bnx2x_init_func_obj(struct bnx2x *bp,
                         struct bnx2x_func_sp_obj *obj,
                         void *rdata, dma_addr_t rdata_mapping,
                         struct bnx2x_func_sp_drv_ops *drv_iface);

int bnx2x_func_state_change(struct bnx2x *bp,
                            struct bnx2x_func_state_params *params);

enum bnx2x_func_state bnx2x_func_get_state(struct bnx2x *bp,
                                           struct bnx2x_func_sp_obj *o);
/******************* Queue State **************/
void bnx2x_init_queue_obj(struct bnx2x *bp,
                          struct bnx2x_queue_sp_obj *obj, u8 cl_id, u32 *cids,
                          u8 cid_cnt, u8 func_id, void *rdata,
                          dma_addr_t rdata_mapping, unsigned long type);

int bnx2x_queue_state_change(struct bnx2x *bp,
                             struct bnx2x_queue_state_params *params);

/********************* VLAN-MAC ****************/
void bnx2x_init_mac_obj(struct bnx2x *bp,
                        struct bnx2x_vlan_mac_obj *mac_obj,
                        u8 cl_id, u32 cid, u8 func_id, void *rdata,
                        dma_addr_t rdata_mapping, int state,
                        unsigned long *pstate, bnx2x_obj_type type,
                        struct bnx2x_credit_pool_obj *macs_pool);

void bnx2x_init_vlan_obj(struct bnx2x *bp,
                         struct bnx2x_vlan_mac_obj *vlan_obj,
                         u8 cl_id, u32 cid, u8 func_id, void *rdata,
                         dma_addr_t rdata_mapping, int state,
                         unsigned long *pstate, bnx2x_obj_type type,
                         struct bnx2x_credit_pool_obj *vlans_pool);

void bnx2x_init_vlan_mac_obj(struct bnx2x *bp,
                             struct bnx2x_vlan_mac_obj *vlan_mac_obj,
                             u8 cl_id, u32 cid, u8 func_id, void *rdata,
                             dma_addr_t rdata_mapping, int state,
                             unsigned long *pstate, bnx2x_obj_type type,
                             struct bnx2x_credit_pool_obj *macs_pool,
                             struct bnx2x_credit_pool_obj *vlans_pool);

int bnx2x_config_vlan_mac(struct bnx2x *bp,
                          struct bnx2x_vlan_mac_ramrod_params *p);

int bnx2x_vlan_mac_move(struct bnx2x *bp,
                        struct bnx2x_vlan_mac_ramrod_params *p,
                        struct bnx2x_vlan_mac_obj *dest_o);

/********************* RX MODE ****************/

void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
                            struct bnx2x_rx_mode_obj *o);

/**
 * Send and RX_MODE ramrod according to the provided parameters.
 *
 * @param bp
 * @param p Command parameters
 *
 * @return 0 - if operation was successfull and there is no pending completions,
 *         positive number - if there are pending completions,
 *         negative - if there were errors
 */
int bnx2x_config_rx_mode(struct bnx2x *bp,
                         struct bnx2x_rx_mode_ramrod_params *p);

/****************** MULTICASTS ****************/

void bnx2x_init_mcast_obj(struct bnx2x *bp,
                          struct bnx2x_mcast_obj *mcast_obj,
                          u8 mcast_cl_id, u32 mcast_cid, u8 func_id,
                          u8 engine_id, void *rdata, dma_addr_t rdata_mapping,
                          int state, unsigned long *pstate,
                          bnx2x_obj_type type);

/**
 * Configure multicast MACs list. May configure a new list
 * provided in p->mcast_list (BNX2X_MCAST_CMD_ADD), clean up
 * (BNX2X_MCAST_CMD_DEL) or restore (BNX2X_MCAST_CMD_RESTORE) a current
 * configuration, continue to execute the pending commands
 * (BNX2X_MCAST_CMD_CONT).
 *
 * If previous command is still pending or if number of MACs to
 * configure is more that maximum number of MACs in one command,
 * the current command will be enqueued to the tail of the
 * pending commands list.
 *
 * @param bp
 * @param p
 * @param command to execute: BNX2X_MCAST_CMD_X
 *
 * @return 0 is operation was sucessfull and there are no pending completions,
 *         negative if there were errors, positive if there are pending
 *         completions.
 */
int bnx2x_config_mcast(struct bnx2x *bp,
                       struct bnx2x_mcast_ramrod_params *p, int cmd);

/****************** CREDIT POOL ****************/
void bnx2x_init_mac_credit_pool(struct bnx2x *bp,
                                struct bnx2x_credit_pool_obj *p, u8 func_id,
                                u8 func_num);
void bnx2x_init_vlan_credit_pool(struct bnx2x *bp,
                                 struct bnx2x_credit_pool_obj *p, u8 func_id,
                                 u8 func_num);


/****************** RSS CONFIGURATION ****************/
void bnx2x_init_rss_config_obj(struct bnx2x *bp,
                               struct bnx2x_rss_config_obj *rss_obj,
                               u8 cl_id, u32 cid, u8 func_id, u8 engine_id,
                               void *rdata, dma_addr_t rdata_mapping,
                               int state, unsigned long *pstate,
                               bnx2x_obj_type type);

/**
 * Updates RSS configuration according to provided parameters.
 *
 * @param bp
 * @param p
 *
 * @return 0 in case of success
 */
int bnx2x_config_rss(struct bnx2x *bp,
                     struct bnx2x_config_rss_params *p);

/**
 * Return the current ind_table configuration.
 *
 * @param bp
 * @param ind_table buffer to fill with the current indirection
 *                  table content. Should be at least
 *                  T_ETH_INDIRECTION_TABLE_SIZE bytes long.
 */
void bnx2x_get_rss_ind_table(struct bnx2x_rss_config_obj *rss_obj,
                             u8 *ind_table);

#endif /* BNX2X_SP_VERBS */