sys/dev/pci/amrvar.h

   1 /*      $NetBSD: amrvar.h,v 1.7 2007/07/09 21:00:52 ad Exp $    */
   2
   3 /*-
   4  * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Andrew Doran.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _PCI_AMRVAR_H_
  33 #define _PCI_AMRVAR_H_
  34
  35 #define AMR_MAX_UNITS           16
  36 #define AMR_WDOG_TICKS          (hz * 5)
  37 #define AMR_NCCB_RESV           2
  38 #define AMR_ENQUIRY_BUFSIZE     2048
  39 #define AMR_SGL_SIZE            (sizeof(struct amr_sgentry) * AMR_MAX_SEGS)
  40 #define AMR_TIMEOUT             30
  41
  42 /*
  43  * Logical drive information.
  44  */
  45 struct amr_logdrive {
  46         u_int           al_size;
  47         u_short         al_state;
  48         u_short         al_properties;
  49         struct device   *al_dv;
  50 };
  51
  52 /*
  53  * Per-controller state.
  54  */
  55 struct amr_softc {
  56         struct device           amr_dv;
  57         bus_space_tag_t         amr_iot;
  58         bus_space_handle_t      amr_ioh;
  59         bus_size_t              amr_ios;
  60         bus_dma_tag_t           amr_dmat;
  61         pci_chipset_tag_t       amr_pc;
  62         void                    *amr_ih;
  63         struct lwp              *amr_thread;
  64         int                     amr_flags;
  65
  66         struct amr_mailbox      *amr_mbox;
  67         bus_addr_t              amr_mbox_paddr;
  68         bus_dmamap_t            amr_dmamap;
  69         bus_dma_segment_t       amr_dmaseg;
  70         int                     amr_dmasize;
  71         void                    *amr_enqbuf;
  72
  73         struct amr_sgentry      *amr_sgls;
  74         bus_addr_t              amr_sgls_paddr;
  75
  76         struct amr_ccb          *amr_ccbs;
  77         SLIST_HEAD(, amr_ccb)   amr_ccb_freelist;
  78         SIMPLEQ_HEAD(, amr_ccb) amr_ccb_queue;
  79         TAILQ_HEAD(, amr_ccb)   amr_ccb_active;
  80         int                     amr_maxqueuecnt;
  81
  82         int     (*amr_get_work)(struct amr_softc *, struct amr_mailbox_resp *);
  83         int     (*amr_submit)(struct amr_softc *sc, struct amr_ccb *);
  84
  85         int                     amr_numdrives;
  86         struct amr_logdrive     amr_drive[AMR_MAX_UNITS];
  87 };
  88
  89 /* What resources are allocated? */
  90 #define AMRF_INTR               0x00000001
  91 #define AMRF_DMA_LOAD           0x00000002
  92 #define AMRF_DMA_MAP            0x00000004
  93 #define AMRF_DMA_ALLOC          0x00000008
  94 #define AMRF_DMA_CREATE         0x00000010
  95 #define AMRF_PCI_INTR           0x00000020
  96 #define AMRF_PCI_REGS           0x00000040
  97 #define AMRF_CCBS               0x00000080
  98 #define AMRF_ENQBUF             0x00000100
  99 #define AMRF_THREAD             0x00000200
 100
 101 /* General flags. */
 102 #define AMRF_THREAD_EXIT        0x00010000
 103 #define AMRF_OPEN               0x00020000
 104
 105 /*
 106  * Command control block.
 107  */
 108 struct amr_ccb {
 109         union {
 110                 SIMPLEQ_ENTRY(amr_ccb) simpleq;
 111                 SLIST_ENTRY(amr_ccb) slist;
 112                 TAILQ_ENTRY(amr_ccb) tailq;
 113         } ac_chain;
 114
 115         u_int           ac_flags;
 116         u_int           ac_status;
 117         u_int           ac_ident;
 118         u_int           ac_xfer_size;
 119         time_t          ac_start_time;
 120         bus_dmamap_t    ac_xfer_map;
 121         void            (*ac_handler)(struct amr_ccb *);
 122         void            *ac_context;
 123         struct device   *ac_dv;
 124         struct amr_mailbox_cmd  ac_cmd;
 125 };
 126 #define AC_XFER_IN      0x01    /* Map describes inbound xfer */
 127 #define AC_XFER_OUT     0x02    /* Map describes outbound xfer */
 128 #define AC_COMPLETE     0x04    /* Command completed */
 129 #define AC_ACTIVE       0x08    /* Command active */
 130 #define AC_NOSGL        0x10    /* No scatter/gather list */
 131 #define AC_MOAN         0x20    /* We have already moaned */
 132
 133 struct amr_attach_args {
 134         int             amra_unit;
 135 };
 136
 137 int     amr_ccb_alloc(struct amr_softc *, struct amr_ccb **);
 138 void    amr_ccb_enqueue(struct amr_softc *, struct amr_ccb *);
 139 void    amr_ccb_free(struct amr_softc *, struct amr_ccb *);
 140 int     amr_ccb_map(struct amr_softc *, struct amr_ccb *, void *, int, int);
 141 int     amr_ccb_poll(struct amr_softc *, struct amr_ccb *, int);
 142 void    amr_ccb_unmap(struct amr_softc *, struct amr_ccb *);
 143 int     amr_ccb_wait(struct amr_softc *, struct amr_ccb *);
 144 const char      *amr_drive_state(int, int *);
 145
 146 extern int      amr_max_xfer;
 147
 148 #endif  /* !_PCI_AMRVAR_H_ */