FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/aacvar.h

     /*      $NetBSD: aacvar.h,v 1.13 2008/10/02 08:21:57 sborrill Exp $     */
     
     /*-
      * Copyright (c) 2002 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Andrew Doran.
      *
     * 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 THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
     */
    
    /*-
     * Copyright (c) 2000 Michael Smith
     * Copyright (c) 2000 BSDi
     * Copyright (c) 2000 Niklas Hallqvist
     * 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 THE AUTHOR 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 AUTHOR 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.
     *
     *      from FreeBSD: aacvar.h,v 1.1 2000/09/13 03:20:34 msmith Exp
     *      via OpenBSD: aacvar.h,v 1.2 2002/03/14 01:26:53 millert Exp
     */
    
    #ifndef _PCI_AACVAR_H_
    #define _PCI_AACVAR_H_
    
    /* Debugging */
    #ifdef AAC_DEBUG
    #define AAC_DPRINTF(mask, args) if ((aac_debug & (mask)) != 0) printf args
    #define AAC_D_INTR      0x01
    #define AAC_D_MISC      0x02
    #define AAC_D_CMD       0x04
    #define AAC_D_QUEUE     0x08
    #define AAC_D_IO        0x10
    extern int aac_debug;
    
    #define AAC_PRINT_FIB(sc, fib)  aac_print_fib((sc), (fib), __func__)
    #else
    #define AAC_DPRINTF(mask, args)
    #define AAC_PRINT_FIB(sc, fib)
    #endif
    
    struct aac_code_lookup {
            const char      *string;
            u_int32_t code;
    };
    
    extern const struct      aac_code_lookup aac_command_status_table[];
    extern const struct      aac_code_lookup aac_container_types[];
    
    struct aac_softc;
    
    /*
     * We allocate a small set of FIBs for the adapter to use to send us messages.
     */
    #define AAC_ADAPTER_FIBS        8
    
    /*
     * FIBs are allocated in page-size chunks and can grow up to the 512
     * limit imposed by the hardware.
    * XXX -- There should be some way to allocate these as-needed without
    *        allocating them at interrupt time.  For now, though, allocate
    *        all that we'll ever need up-front.
    */
   #define AAC_PREALLOCATE_FIBS(sc)        ((sc)->sc_max_fibs)
   
   /*
    * Firmware messages are passed in the printf buffer.
    */
   #define AAC_PRINTF_BUFSIZE      256
   
   /*
    * We wait this many seconds for the adapter to come ready if it is still
    * booting.
    */
   #define AAC_BOOT_TIMEOUT        (3 * 60)
   
   /*
    * Wait this long for a lost interrupt to get detected.
    */
   #define AAC_WATCH_TIMEOUT       10000           /* 10000 * 1ms = 10s */
   
   /*
    * Timeout for immediate commands.
    */
   #define AAC_IMMEDIATE_TIMEOUT   30
   
   /*
    * Delay 20ms after the qnotify in sync operations.  Experimentally deduced.
    */
   #define AAC_SYNC_DELAY          20000
   
   /*
    * sc->sc_max_sgs is the number of scatter-gather elements we can fit
    * in one block I/O request (64-bit or 32-bit, depending) FIB, or the
    * maximum number that the firmware will accept.  We subtract one to
    * deal with requests that do not start on an even page boundary.
    */
   #define AAC_MAX_XFER(sc)        (((sc)->sc_max_sgs - 1) * PAGE_SIZE)
   
   /*
    * Fixed sector size.
    */
   #define AAC_SECTOR_SIZE         512
   
   /*
    * Number of CCBs to reserve for control operations.
    */
   #define AAC_NCCBS_RESERVE       8
   
   /*
    * Quirk listings.
    */
   #define AAC_QUIRK_PERC2QC       (1 << 0)        /* Dell PERC 2QC */
   #define AAC_QUIRK_SG_64BIT      (1 << 4)        /* Use 64-bit S/G addresses */
   #define AAC_QUIRK_4GB_WINDOW    (1 << 5)        /* Device can access host mem
                                                    * in 2GB-4GB range */
   #define AAC_QUIRK_NO4GB         (1 << 6)        /* Can't access host mem >2GB */
   #define AAC_QUIRK_256FIBS       (1 << 7)        /* Can only handle 256 cmds */
   #define AAC_QUIRK_BROKEN_MMAP   (1 << 8)        /* Broken HostPhysMemPages */
   #define AAC_QUIRK_NEW_COMM      (1 << 11)       /* New comm. i/f supported */
   #define AAC_QUIRK_RAW_IO        (1 << 12)       /* Raw I/O interface */
   #define AAC_QUIRK_ARRAY_64BIT   (1 << 13)       /* 64-bit array size */
   #define AAC_QUIRK_LBA_64BIT     (1 << 14)       /* 64-bit LBA support */
   
   
   /*
    * We gather a number of adapter-visible items into a single structure.
    *
    * The ordering of this structure may be important; we copy the Linux driver:
    *
    * Adapter FIBs
    * Init struct
    * Queue headers (Comm Area)
    * Printf buffer
    *
    * In addition, we add:
    * Sync Fib
    */
   struct aac_common {
           /* fibs for the controller to send us messages */
           struct aac_fib ac_fibs[AAC_ADAPTER_FIBS];
   
           /* the init structure */
           struct aac_adapter_init ac_init;
   
           /* arena within which the queue structures are kept */
           u_int8_t ac_qbuf[sizeof(struct aac_queue_table) + AAC_QUEUE_ALIGN];
   
           /* buffer for text messages from the controller */
           char    ac_printf[AAC_PRINTF_BUFSIZE];
   
           /* fib for synchronous commands */
           struct aac_fib ac_sync_fib;
   };
   
   struct aac_ccb;
   
   /*
    * Interface operations
    */
   struct aac_interface {
           int     (*aif_get_fwstatus)(struct aac_softc *);
           void    (*aif_qnotify)(struct aac_softc *, int);
           int     (*aif_get_istatus)(struct aac_softc *);
           void    (*aif_set_istatus)(struct aac_softc *, int);
           void    (*aif_set_mailbox)(struct aac_softc *, u_int32_t,
                                      u_int32_t, u_int32_t, u_int32_t, u_int32_t);
           uint32_t (*aif_get_mailbox)(struct aac_softc *, int);
           void    (*aif_set_interrupts)(struct aac_softc *, int);
           int     (*aif_send_command)(struct aac_softc *, struct aac_ccb *);
           int     (*aif_get_outb_queue)(struct aac_softc *);
           void    (*aif_set_outb_queue)(struct aac_softc *, int);
   };
   
   #define AAC_GET_FWSTATUS(sc)            ((sc)->sc_if.aif_get_fwstatus(sc))
   #define AAC_QNOTIFY(sc, qbit) \
           ((sc)->sc_if.aif_qnotify((sc), (qbit)))
   #define AAC_GET_ISTATUS(sc)             ((sc)->sc_if.aif_get_istatus(sc))
   #define AAC_CLEAR_ISTATUS(sc, mask) \
           ((sc)->sc_if.aif_set_istatus((sc), (mask)))
   #define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \
           do {                                                            \
                   ((sc)->sc_if.aif_set_mailbox((sc), (command), (arg0),   \
                       (arg1), (arg2), (arg3)));                           \
           } while(0)
   #define AAC_GET_MAILBOX(sc, mb)         ((sc)->sc_if.aif_get_mailbox(sc, mb))
   #define AAC_GET_MAILBOXSTATUS(sc)       (AAC_GET_MAILBOX(sc, 0))
   #define AAC_MASK_INTERRUPTS(sc) \
           ((sc)->sc_if.aif_set_interrupts((sc), 0))
   #define AAC_UNMASK_INTERRUPTS(sc) \
           ((sc)->sc_if.aif_set_interrupts((sc), 1))
   #define AAC_SEND_COMMAND(sc, cm) \
           ((sc)->sc_if.aif_send_command((sc), cm))
   #define AAC_GET_OUTB_QUEUE(sc) \
           ((sc)->sc_if.aif_get_outb_queue((sc)))
   #define AAC_SET_OUTB_QUEUE(sc, idx) \
           ((sc)->sc_if.aif_set_outb_queue((sc), (idx)))
   
   #define AAC_SETREG4(sc, reg, val) \
           bus_space_write_4((sc)->sc_memt, (sc)->sc_memh, (reg), (val))
   #define AAC_GETREG4(sc, reg) \
           bus_space_read_4((sc)->sc_memt, (sc)->sc_memh, (reg))
   #define AAC_SETREG2(sc, reg, val) \
           bus_space_write_2((sc)->sc_memt, (sc)->sc_memh, (reg), (val))
   #define AAC_GETREG2(sc, reg) \
           bus_space_read_2((sc)->sc_memt, (sc)->sc_memh, (reg))
   #define AAC_SETREG1(sc, reg, val) \
           bus_space_write_1((sc)->sc_memt, (sc)->sc_memh, (reg), (val))
   #define AAC_GETREG1(sc, reg) \
           bus_space_read_1((sc)->sc_memt, (sc)->sc_memh, (reg))
   
   struct aac_fibmap {
           TAILQ_ENTRY(aac_fibmap) fm_link;
           struct aac_fib          *fm_fibs;
           bus_dma_segment_t       fm_fibseg;
           bus_dmamap_t            fm_fibmap;
           struct aac_ccb          *fm_ccbs;
   };
   
   /*
    * A command control block, one for each corresponding command index
    * of the controller.
    */
   struct aac_ccb {
           SIMPLEQ_ENTRY(aac_ccb)  ac_chain;
   
           struct aac_fib          *ac_fib;
           struct aac_fibmap       *ac_fibmap;
           bus_addr_t              ac_fibphys;
           bus_dmamap_t            ac_dmamap_xfer;
   
           void                    *ac_data;
           size_t                  ac_datalen;
           u_int                   ac_flags;
   
           void                    (*ac_intr)(struct aac_ccb *);
           struct device           *ac_device;
           void                    *ac_context;
   };
   #define AAC_CCB_MAPPED          0x01
   #define AAC_CCB_COMPLETED       0x02
   #define AAC_CCB_DATA_IN         0x04
   #define AAC_CCB_DATA_OUT        0x08
   
   struct aac_drive {
           u_int   hd_present;
           u_int   hd_devtype;
           u_int64_t       hd_size;
   };
   
   /*
    * Per-controller structure.
    */
   struct aac_softc {
           struct device           sc_dv;
           void                    *sc_ih;
           bus_space_tag_t         sc_memt;
           bus_space_handle_t      sc_memh;
           bus_dma_tag_t           sc_dmat;
           bus_size_t              sc_regsize;
   
           struct FsaRevision      sc_revision;
           int                     sc_hwif;
           int                     sc_quirks;
           struct aac_interface    sc_if;
   
           u_int32_t               sc_max_fibs;
           u_int32_t               sc_max_fibs_alloc;
           u_int32_t               sc_max_sectors;
           u_int32_t               sc_max_fib_size;
           u_int32_t               sc_max_sgs;
   
           u_int32_t               sc_total_fibs;
           TAILQ_HEAD(,aac_fibmap) sc_fibmap_tqh;
   
           struct aac_common       *sc_common;
           bus_dma_segment_t       sc_common_seg;
           bus_dmamap_t            sc_common_dmamap;
           struct aac_fib          *sc_aif_fib;
   
           struct aac_ccb          *sc_ccbs;
           SIMPLEQ_HEAD(, aac_ccb) sc_ccb_free;
           SIMPLEQ_HEAD(, aac_ccb) sc_ccb_queue;
           SIMPLEQ_HEAD(, aac_ccb) sc_ccb_complete;
   
           struct aac_queue_table  *sc_queues;
           struct aac_queue_entry  *sc_qentries[AAC_QUEUE_COUNT];
           struct aac_drive        sc_hdr[AAC_MAX_CONTAINERS];
           int                     sc_nunits;
           int                     sc_flags;
           uint32_t                sc_supported_options;
   
           /* Set by parent */
           int                     (*sc_intr_set)(struct aac_softc *,
                                                   int (*)(void *), void *);
   };
   #define AAC_HWIF_I960RX         0
   #define AAC_HWIF_STRONGARM      1
   #define AAC_HWIF_FALCON         2
   #define AAC_HWIF_RKT            3
   #define AAC_HWIF_UNKNOWN        -1
   
   #define AAC_ONLINE              2
   
   struct aac_attach_args {
           int             aaca_unit;
   };
   
   int     aac_attach(struct aac_softc *);
   void    aac_ccb_enqueue(struct aac_softc *, struct aac_ccb *);
   void    aac_ccb_free(struct aac_softc *, struct aac_ccb *);
   struct aac_ccb *aac_ccb_alloc(struct aac_softc *, int);
   int     aac_ccb_map(struct aac_softc *, struct aac_ccb *);
   int     aac_ccb_poll(struct aac_softc *, struct aac_ccb *, int);
   int     aac_ccb_submit(struct aac_softc *, struct aac_ccb *);
   void    aac_ccb_unmap(struct aac_softc *, struct aac_ccb *);
   const char      *aac_describe_code(const struct aac_code_lookup *, u_int32_t);
   int     aac_intr(void *);
   
   #endif  /* !_PCI_AACVAR_H_ */

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