/*
 * Copyright (C) 2003-2006 Chelsio Communications.  All rights reserved.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the LICENSE file included in this
 * release for licensing terms and conditions.
 */

#ifndef _CXGB3_OFFLOAD_CTL_DEFS_H
#define _CXGB3_OFFLOAD_CTL_DEFS_H

enum {
        GET_MAX_OUTSTANDING_WR,
        GET_TX_MAX_CHUNK,
        GET_TID_RANGE,
        GET_STID_RANGE,
        GET_RTBL_RANGE,
        GET_L2T_CAPACITY,
        GET_MTUS,
        GET_WR_LEN,
        GET_IFF_FROM_MAC,
        GET_DDP_PARAMS,
        GET_PORTS,

        ULP_ISCSI_GET_PARAMS,
        ULP_ISCSI_SET_PARAMS,

        RDMA_GET_PARAMS,
        RDMA_CQ_OP,
        RDMA_CQ_SETUP,
        RDMA_CQ_DISABLE,
        RDMA_CTRL_QP_SETUP,
        RDMA_GET_MEM,

        FAILOVER           = 30,
        FAILOVER_DONE      = 31,
        FAILOVER_CLEAR     = 32,

        GET_CPUIDX_OF_QSET = 40,

        GET_RX_PAGE_INFO   = 50,
};

/*
 * Structure used to describe a TID range.  Valid TIDs are [base, base+num).
 */
struct tid_range {
        unsigned int base;   /* first TID */
        unsigned int num;    /* number of TIDs in range */
};

/*
 * Structure used to request the size and contents of the MTU table.
 */
struct mtutab {
        unsigned int size;          /* # of entries in the MTU table */
        const unsigned short *mtus; /* the MTU table values */
};

/*
 * Structure used to request the ifnet that owns a given MAC address.
 */
struct iff_mac {
        if_t dev;
        const unsigned char *mac_addr;
        u16 vlan_tag;
};

struct pci_dev;

/*
 * Structure used to request the TCP DDP parameters.
 */
struct ddp_params {
        unsigned int llimit;     /* TDDP region start address */
        unsigned int ulimit;     /* TDDP region end address */
        unsigned int tag_mask;   /* TDDP tag mask */
        struct pci_dev *pdev;
};

struct adap_ports {
        unsigned int nports;     /* number of ports on this adapter */
        if_t devs[MAX_NPORTS];
};

/*
 * Structure used to return information to the iscsi layer.
 */
struct ulp_iscsi_info {
        unsigned int    offset;
        unsigned int    llimit;
        unsigned int    ulimit;
        unsigned int    tagmask;
        unsigned int    pgsz3;
        unsigned int    pgsz2;
        unsigned int    pgsz1;
        unsigned int    pgsz0;
        unsigned int    max_rxsz;
        unsigned int    max_txsz;
        struct pci_dev  *pdev;
};

/*
 * Offload TX/RX page information.
 */
struct ofld_page_info {
        unsigned int page_size;  /* Page size, should be a power of 2 */
        unsigned int num;        /* Number of pages */
};

/*
 * Structure used to return information to the RDMA layer.
 */
struct rdma_info {
        unsigned int tpt_base;   /* TPT base address */
        unsigned int tpt_top;    /* TPT last entry address */
        unsigned int pbl_base;   /* PBL base address */
        unsigned int pbl_top;    /* PBL last entry address */
        unsigned int rqt_base;   /* RQT base address */
        unsigned int rqt_top;    /* RQT last entry address */
        unsigned int udbell_len; /* user doorbell region length */
        unsigned long udbell_physbase;  /* user doorbell physical start addr */
        void *kdb_addr;  /* kernel doorbell register address */
        device_t pdev;   /* associated PCI device */
};

/*
 * Structure used to request an operation on an RDMA completion queue.
 */
struct rdma_cq_op {
        unsigned int id;
        unsigned int op;
        unsigned int credits;
};

/*
 * Structure used to setup RDMA completion queues.
 */
struct rdma_cq_setup {
        unsigned int id;
        unsigned long long base_addr;
        unsigned int size;
        unsigned int credits;
        unsigned int credit_thres;
        unsigned int ovfl_mode;
};

/*
 * Structure used to setup the RDMA control egress context.
 */
struct rdma_ctrlqp_setup {
        unsigned long long base_addr;
        unsigned int size;
};
#endif /* _CXGB3_OFFLOAD_CTL_DEFS_H */