/**************************************************************************
 *
 * Copyright (c) 2000-2002 Alacritech, Inc.  All rights reserved.
 *
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY ALACRITECH, INC. ``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 ALACRITECH, INC. 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.
 *
 * The views and conclusions contained in the software and documentation
 * are those of the authors and should not be interpreted as representing
 * official policies, either expressed or implied, of Alacritech, Inc.
 *
 **************************************************************************/

/*
 * FILENAME: slic.h
 *
 * This is the base set of header definitions for the SLICOSS driver.
 */
#ifndef __SLIC_DRIVER_H__
#define __SLIC_DRIVER_H__


struct slic_spinlock {
	spinlock_t	lock;
	unsigned long	flags;
};

#define SLIC_RSPQ_PAGES_GB        10
#define SLIC_RSPQ_BUFSINPAGE      (PAGE_SIZE / SLIC_RSPBUF_SIZE)

struct slic_rspqueue {
    u32             offset;
    u32             pageindex;
    u32             num_pages;
    struct slic_rspbuf *rspbuf;
    u32 *vaddr[SLIC_RSPQ_PAGES_GB];
    dma_addr_t          paddr[SLIC_RSPQ_PAGES_GB];
};

#define SLIC_RCVQ_EXPANSION         1
#define SLIC_RCVQ_ENTRIES           (256 * SLIC_RCVQ_EXPANSION)
#define SLIC_RCVQ_MINENTRIES        (SLIC_RCVQ_ENTRIES / 2)
#define SLIC_RCVQ_MAX_PROCESS_ISR   ((SLIC_RCVQ_ENTRIES * 4))
#define SLIC_RCVQ_RCVBUFSIZE        2048
#define SLIC_RCVQ_FILLENTRIES       (16 * SLIC_RCVQ_EXPANSION)
#define SLIC_RCVQ_FILLTHRESH        (SLIC_RCVQ_ENTRIES - SLIC_RCVQ_FILLENTRIES)

struct slic_rcvqueue {
    struct sk_buff    *head;
    struct sk_buff    *tail;
    u32            count;
    u32            size;
    u32            errors;
};

struct slic_rcvbuf_info {
    u32     id;
    u32     starttime;
    u32     stoptime;
    u32     slicworld;
    u32     lasttime;
    u32     lastid;
};
/*
 SLIC Handle structure.  Used to restrict handle values to
 32 bits by using an index rather than an address.
 Simplifies ucode in 64-bit systems
*/
struct slic_handle_word {
	union {
		struct {
			ushort      index;
			ushort      bottombits; /* to denote num bufs to card */
		}  parts;
		u32         whole;
	}  handle;
};

struct slic_handle {
    struct slic_handle_word  token;  /* token passed between host and card*/
    ushort                      type;
    void *address;    /* actual address of the object*/
    ushort                      offset;
    struct slic_handle       *other_handle;
    struct slic_handle       *next;
};

#define SLIC_HANDLE_FREE        0x0000
#define SLIC_HANDLE_DATA        0x0001
#define SLIC_HANDLE_CMD         0x0002
#define SLIC_HANDLE_CONTEXT     0x0003
#define SLIC_HANDLE_TEAM        0x0004

#define handle_index        handle.parts.index
#define handle_bottom       handle.parts.bottombits
#define handle_token        handle.whole

#define SLIC_HOSTCMD_SIZE    512

struct slic_hostcmd {
    struct slic_host64_cmd  cmd64;
    u32                    type;
    struct sk_buff            *skb;
    u32                    paddrl;
    u32                    paddrh;
    u32                    busy;
    u32                    cmdsize;
    ushort                     numbufs;
    struct slic_handle    *pslic_handle;/* handle associated with command */
    struct slic_hostcmd    *next;
    struct slic_hostcmd    *next_all;
};

#define SLIC_CMDQ_CMDSINPAGE    (PAGE_SIZE / SLIC_HOSTCMD_SIZE)
#define SLIC_CMD_DUMB            3
#define SLIC_CMDQ_INITCMDS       256
#define SLIC_CMDQ_MAXCMDS        256
#define SLIC_CMDQ_MAXOUTSTAND    SLIC_CMDQ_MAXCMDS
#define SLIC_CMDQ_MAXPAGES       (SLIC_CMDQ_MAXCMDS / SLIC_CMDQ_CMDSINPAGE)
#define SLIC_CMDQ_INITPAGES      (SLIC_CMDQ_INITCMDS / SLIC_CMDQ_CMDSINPAGE)

struct slic_cmdqmem {
	int pagecnt;
	u32 *pages[SLIC_CMDQ_MAXPAGES];
	dma_addr_t dma_pages[SLIC_CMDQ_MAXPAGES];
};

struct slic_cmdqueue {
	struct slic_hostcmd *head;
	struct slic_hostcmd *tail;
	int count;
	struct slic_spinlock lock;
};

#ifdef STATUS_SUCCESS
#undef STATUS_SUCCESS
#endif

#define STATUS_SUCCESS              0
#define STATUS_PENDING              0
#define STATUS_FAILURE             -1
#define STATUS_ERROR               -2
#define STATUS_NOT_SUPPORTED       -3
#define STATUS_BUFFER_TOO_SHORT    -4

#define SLIC_MAX_CARDS              32
#define SLIC_MAX_PORTS              4        /* Max # of ports per card   */
#if SLIC_DUMP_ENABLED
/*
Dump buffer size

This cannot be bigger than the max DMA size the card supports,
given the current code structure in the host and ucode.
Mojave supports 16K, Oasis supports 16K-1, so
just set this at 15K, shouldnt make that much of a diff.
*/
#define DUMP_BUF_SIZE               0x3C00
#endif


struct mcast_address {
	unsigned char address[6];
	struct mcast_address *next;
};

#define CARD_DOWN        0x00000000
#define CARD_UP          0x00000001
#define CARD_FAIL        0x00000002
#define CARD_DIAG        0x00000003
#define CARD_SLEEP       0x00000004

#define ADAPT_DOWN             0x00
#define ADAPT_UP               0x01
#define ADAPT_FAIL             0x02
#define ADAPT_RESET            0x03
#define ADAPT_SLEEP            0x04

#define ADAPT_FLAGS_BOOTTIME            0x0001
#define ADAPT_FLAGS_IS64BIT             0x0002
#define ADAPT_FLAGS_PENDINGLINKDOWN     0x0004
#define ADAPT_FLAGS_FIBERMEDIA          0x0008
#define ADAPT_FLAGS_LOCKS_ALLOCED       0x0010
#define ADAPT_FLAGS_INT_REGISTERED      0x0020
#define ADAPT_FLAGS_LOAD_TIMER_SET      0x0040
#define ADAPT_FLAGS_STATS_TIMER_SET     0x0080
#define ADAPT_FLAGS_RESET_TIMER_SET     0x0100

#define LINK_DOWN              0x00
#define LINK_CONFIG            0x01
#define LINK_UP                0x02

#define LINK_10MB              0x00
#define LINK_100MB             0x01
#define LINK_AUTOSPEED         0x02
#define LINK_1000MB            0x03
#define LINK_10000MB           0x04

#define LINK_HALFD             0x00
#define LINK_FULLD             0x01
#define LINK_AUTOD             0x02

#define MAC_DIRECTED     0x00000001
#define MAC_BCAST        0x00000002
#define MAC_MCAST        0x00000004
#define MAC_PROMISC      0x00000008
#define MAC_LOOPBACK     0x00000010
#define MAC_ALLMCAST     0x00000020

#define SLIC_DUPLEX(x)    ((x == LINK_FULLD) ? "FDX" : "HDX")
#define SLIC_SPEED(x)     ((x == LINK_100MB) ? "100Mb" : ((x == LINK_1000MB) ?\
				"1000Mb" : " 10Mb"))
#define SLIC_LINKSTATE(x) ((x == LINK_DOWN) ? "Down" : "Up  ")
#define SLIC_ADAPTER_STATE(x) ((x == ADAPT_UP) ? "UP" : "Down")
#define SLIC_CARD_STATE(x)    ((x == CARD_UP) ? "UP" : "Down")

struct slic_iface_stats {
    /*
     * Stats
     */
    u64        xmt_bytes;
    u64        xmt_ucast;
    u64        xmt_mcast;
    u64        xmt_bcast;
    u64        xmt_errors;
    u64        xmt_discards;
    u64        xmit_collisions;
    u64        xmit_excess_xmit_collisions;
    u64        rcv_bytes;
    u64        rcv_ucast;
    u64        rcv_mcast;
    u64        rcv_bcast;
    u64        rcv_errors;
    u64        rcv_discards;
};

struct sliccp_stats {
    u64        xmit_tcp_segs;
    u64        xmit_tcp_bytes;
    u64        rcv_tcp_segs;
    u64        rcv_tcp_bytes;
};

struct slicnet_stats {
    struct sliccp_stats        tcp;
    struct slic_iface_stats      iface;
};

#define SLIC_LOADTIMER_PERIOD     1
#define SLIC_INTAGG_DEFAULT       200
#define SLIC_LOAD_0               0
#define SLIC_INTAGG_0             0
#define SLIC_LOAD_1               8000
#define SLIC_LOAD_2               10000
#define SLIC_LOAD_3               12000
#define SLIC_LOAD_4               14000
#define SLIC_LOAD_5               16000
#define SLIC_INTAGG_1             50
#define SLIC_INTAGG_2             100
#define SLIC_INTAGG_3             150
#define SLIC_INTAGG_4             200
#define SLIC_INTAGG_5             250
#define SLIC_LOAD_1GB             3000
#define SLIC_LOAD_2GB             6000
#define SLIC_LOAD_3GB             12000
#define SLIC_LOAD_4GB             24000
#define SLIC_LOAD_5GB             48000
#define SLIC_INTAGG_1GB           50
#define SLIC_INTAGG_2GB           75
#define SLIC_INTAGG_3GB           100
#define SLIC_INTAGG_4GB           100
#define SLIC_INTAGG_5GB           100

struct ether_header {
    unsigned char    ether_dhost[6];
    unsigned char    ether_shost[6];
    ushort   ether_type;
};

struct sliccard {
    uint              busnumber;
    uint              slotnumber;
    uint              state;
    uint              cardnum;
    uint              card_size;
    uint              adapters_activated;
    uint              adapters_allocated;
    uint              adapters_sleeping;
    uint              gennumber;
    u32           events;
    u32           loadlevel_current;
    u32           load;
    uint              reset_in_progress;
    u32           pingstatus;
    u32           bad_pingstatus;
    struct timer_list loadtimer;
    u32           loadtimerset;
    uint              config_set;
    struct slic_config  config;
    struct dentry      *debugfs_dir;
    struct dentry      *debugfs_cardinfo;
    struct adapter  *master;
    struct adapter  *adapter[SLIC_MAX_PORTS];
    struct sliccard *next;
    u32             error_interrupts;
    u32             error_rmiss_interrupts;
    u32             rcv_interrupts;
    u32             xmit_interrupts;
    u32             num_isrs;
    u32             false_interrupts;
    u32             max_isr_rcvs;
    u32             max_isr_xmits;
    u32             rcv_interrupt_yields;
    u32             tx_packets;
#if SLIC_DUMP_ENABLED
    u32             dumpstatus;           /* Result of dump UPR */
    void *cmdbuffer;

    ulong               cmdbuffer_phys;
    u32             cmdbuffer_physl;
    u32             cmdbuffer_physh;

    u32             dump_count;
    struct task_struct *dump_task_id;
    u32             dump_wait_count;
    uint                dumpthread_running; /* has a dump thread been init'd  */
    uint                dump_requested;     /* 0 no, 1 = reqstd 2=curr 3=done */
    u32             dumptime_start;
    u32             dumptime_complete;
    u32             dumptime_delta;
    void *dumpbuffer;
    ulong               dumpbuffer_phys;
    u32             dumpbuffer_physl;
    u32             dumpbuffer_physh;
    wait_queue_head_t   dump_wq;
    struct file        *dumphandle;
    mm_segment_t        dumpfile_fs;
#endif
    u32             debug_ix;
    ushort              reg_type[32];
    ushort              reg_offset[32];
    u32             reg_value[32];
    u32             reg_valueh[32];
};

#define NUM_CFG_SPACES      2
#define NUM_CFG_REGS        64
#define NUM_CFG_REG_ULONGS  (NUM_CFG_REGS / sizeof(u32))

struct physcard {
    struct adapter  *adapter[SLIC_MAX_PORTS];
    struct physcard *next;
    uint                adapters_allocd;

 /*  the following is not currently needed
    u32               bridge_busnum;
    u32               bridge_cfg[NUM_CFG_SPACES][NUM_CFG_REG_ULONGS];
 */
};

struct base_driver {
    struct slic_spinlock driver_lock;
    u32              num_slic_cards;
    u32              num_slic_ports;
    u32              num_slic_ports_active;
    u32              dynamic_intagg;
    struct sliccard  *slic_card;
    struct physcard  *phys_card;
    uint                 cardnuminuse[SLIC_MAX_CARDS];
};

struct slic_shmem {
    volatile u32          isr;
    volatile u32          linkstatus;
    volatile struct slic_stats     inicstats;
};

struct slic_reg_params {
    u32       linkspeed;
    u32       linkduplex;
    u32       fail_on_bad_eeprom;
};

struct slic_upr {
    uint               adapter;
    u32            upr_request;
    u32            upr_data;
    u32            upr_data_h;
    u32            upr_buffer;
    u32            upr_buffer_h;
    struct slic_upr *next;
};

struct slic_ifevents {
    uint        oflow802;
    uint        uflow802;
    uint        Tprtoflow;
    uint        rcvearly;
    uint        Bufov;
    uint        Carre;
    uint        Longe;
    uint        Invp;
    uint        Crc;
    uint        Drbl;
    uint        Code;
    uint        IpHlen;
    uint        IpLen;
    uint        IpCsum;
    uint        TpCsum;
    uint        TpHlen;
};

struct adapter {
    void *ifp;
    struct sliccard *card;
    uint                port;
    struct physcard *physcard;
    uint                physport;
    uint                cardindex;
    uint                card_size;
    uint                chipid;
    struct net_device  *netdev;
    struct net_device  *next_netdevice;
    struct slic_spinlock     adapter_lock;
    struct slic_spinlock     reset_lock;
    struct pci_dev     *pcidev;
    uint                busnumber;
    uint                slotnumber;
    uint                functionnumber;
    ushort              vendid;
    ushort              devid;
    ushort              subsysid;
    u32             irq;
    void __iomem *memorybase;
    u32             memorylength;
    u32             drambase;
    u32             dramlength;
    uint                queues_initialized;
    uint                allocated;
    uint                activated;
    u32             intrregistered;
    uint                isp_initialized;
    uint                gennumber;
    u32             curaddrupper;
    struct slic_shmem      *pshmem;
    dma_addr_t          phys_shmem;
    u32             isrcopy;
    __iomem struct slic_regs       *slic_regs;
    unsigned char               state;
    unsigned char               linkstate;
    unsigned char               linkspeed;
    unsigned char               linkduplex;
    uint                flags;
    unsigned char               macaddr[6];
    unsigned char               currmacaddr[6];
    u32             macopts;
    ushort              devflags_prev;
    u64             mcastmask;
    struct mcast_address   *mcastaddrs;
    struct slic_upr   *upr_list;
    uint                upr_busy;
    struct timer_list   pingtimer;
    u32             pingtimerset;
    struct timer_list   statstimer;
    u32             statstimerset;
    struct timer_list   loadtimer;
    u32             loadtimerset;
    struct dentry      *debugfs_entry;
    struct slic_spinlock     upr_lock;
    struct slic_spinlock     bit64reglock;
    struct slic_rspqueue     rspqueue;
    struct slic_rcvqueue     rcvqueue;
    struct slic_cmdqueue     cmdq_free;
    struct slic_cmdqueue     cmdq_done;
    struct slic_cmdqueue     cmdq_all;
    struct slic_cmdqmem      cmdqmem;
    /*
     *  SLIC Handles
    */
    struct slic_handle slic_handles[SLIC_CMDQ_MAXCMDS+1]; /* Object handles*/
    struct slic_handle *pfree_slic_handles;          /* Free object handles*/
    struct slic_spinlock     handle_lock;           /* Object handle list lock*/
    ushort              slic_handle_ix;

    u32             xmitq_full;
    u32             all_reg_writes;
    u32             icr_reg_writes;
    u32             isr_reg_writes;
    u32             error_interrupts;
    u32             error_rmiss_interrupts;
    u32             rx_errors;
    u32             rcv_drops;
    u32             rcv_interrupts;
    u32             xmit_interrupts;
    u32             linkevent_interrupts;
    u32             upr_interrupts;
    u32             num_isrs;
    u32             false_interrupts;
    u32             tx_packets;
    u32             xmit_completes;
    u32             tx_drops;
    u32             rcv_broadcasts;
    u32             rcv_multicasts;
    u32             rcv_unicasts;
    u32             max_isr_rcvs;
    u32             max_isr_xmits;
    u32             rcv_interrupt_yields;
    u32             intagg_period;
    struct inicpm_state    *inicpm_info;
    void *pinicpm_info;
    struct slic_reg_params   reg_params;
    struct slic_ifevents  if_events;
    struct slic_stats        inicstats_prev;
    struct slicnet_stats     slic_stats;
    struct net_device_stats stats;
};

#if SLIC_DUMP_ENABLED
#define SLIC_DUMP_REQUESTED      1
#define SLIC_DUMP_IN_PROGRESS    2
#define SLIC_DUMP_DONE           3

/****************************************************************************
 *
 * Microcode crash information structure.  This
 * structure is written out to the card's SRAM when the microcode panic's.
 *
 ****************************************************************************/
struct slic_crash_info {
    ushort  cpu_id;
    ushort  crash_pc;
};

#define CRASH_INFO_OFFSET   0x155C

#endif

#define UPDATE_STATS(largestat, newstat, oldstat)                        \
{                                                                        \
    if ((newstat) < (oldstat))                                           \
	(largestat) += ((newstat) + (0xFFFFFFFF - oldstat + 1));         \
    else                                                                 \
	(largestat) += ((newstat) - (oldstat));                          \
}

#define UPDATE_STATS_GB(largestat, newstat, oldstat)                     \
{                                                                        \
    (largestat) += ((newstat) - (oldstat));                              \
}

#define ETHER_EQ_ADDR(_AddrA, _AddrB, _Result)                           \
{                                                                        \
    _Result = TRUE;                                                      \
    if (*(u32 *)(_AddrA) != *(u32 *)(_AddrB))                          \
	_Result = FALSE;                                                 \
    if (*(u16 *)(&((_AddrA)[4])) != *(u16 *)(&((_AddrB)[4])))        \
	_Result = FALSE;                                                 \
}

#if defined(CONFIG_X86_64) || defined(CONFIG_IA64)
#define   SLIC_GET_ADDR_LOW(_addr)  (u32)((u64)(_addr) & \
	0x00000000FFFFFFFF)
#define   SLIC_GET_ADDR_HIGH(_addr)  (u32)(((u64)(_addr) >> 32) & \
	0x00000000FFFFFFFF)
#else
#define   SLIC_GET_ADDR_LOW(_addr)   (u32)_addr
#define   SLIC_GET_ADDR_HIGH(_addr)  (u32)0
#endif

#define FLUSH       TRUE
#define DONT_FLUSH  FALSE

#define SIOCSLICDUMPCARD         (SIOCDEVPRIVATE+9)
#define SIOCSLICSETINTAGG        (SIOCDEVPRIVATE+10)
#define SIOCSLICTRACEDUMP        (SIOCDEVPRIVATE+11)

#endif /*  __SLIC_DRIVER_H__ */