xref: /src/sys/dev/pci/cxgb/cxgb_ctl_defs.h

/*
 * 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 */
};

struct net_device;

/*
 * Structure used to request the adapter net_device owning a given MAC address.
 */
struct iff_mac {
    struct net_device *dev;          /* the net_device */
    const unsigned char *mac_addr;   /* MAC address to lookup */
    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 */
    struct net_device *lldevs[2];
};

/*
 * 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 volatile *kdb_addr;  /* kernel doorbell register address */
    struct pci_dev *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 */