sys/dev/raid/twe/twe_compat.h

   1 /*-
   2  * Copyright (c) 2000 Michael Smith
   3  * Copyright (c) 2003 Paul Saab
   4  * Copyright (c) 2003 Vinod Kashyap
   5  * Copyright (c) 2000 BSDi
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD: src/sys/dev/twe/twe_compat.h,v 1.1.2.5 2004/04/07 22:18:00 vkashyap Exp $
  30  * $DragonFly: src/sys/dev/raid/twe/twe_compat.h,v 1.17 2008/06/10 17:20:52 dillon Exp $
  31  */
  32 /*
  33  * Portability and compatibility interfaces.
  34  */
  35
  36 #if defined(__FreeBSD__) || defined(__DragonFly__)
  37 /******************************************************************************
  38  * FreeBSD-4 or DragonFly
  39  */
  40 #define TWE_SUPPORTED_PLATFORM
  41
  42 #include <sys/param.h>
  43 #include <sys/cons.h>
  44 #include <sys/systm.h>
  45 #include <sys/malloc.h>
  46 #include <sys/kernel.h>
  47 #include <sys/sysctl.h>
  48 #include <sys/bus.h>
  49 #include <sys/conf.h>
  50 #include <sys/disk.h>
  51 #include <sys/stat.h>
  52 #include <sys/rman.h>
  53 #include <sys/devicestat.h>
  54 #include <sys/thread2.h>
  55
  56 #include <machine/md_var.h>
  57
  58 #include <vm/vm.h>
  59 #include <vm/pmap.h>
  60
  61 #include <bus/pci/pcireg.h>
  62 #include <bus/pci/pcivar.h>
  63
  64 /*
  65  * These macros allows us to build a version of the driver which can
  66  * safely be loaded into a kernel which already contains a 'twe' driver,
  67  * and which will override it in all things.
  68  *
  69  * All public symbols must be listed here.
  70  */
  71 #ifdef TWE_OVERRIDE
  72 /* public symbols defined in twe.c */
  73 #define twe_setup                       Xtwe_setup
  74 #define twe_init                        Xtwe_init
  75 #define twe_deinit                      Xtwe_deinit
  76 #define twe_intr                        Xtwe_intr
  77 #define twe_startio                     Xtwe_startio
  78 #define twe_dump_blocks                 Xtwe_dump_blocks
  79 #define twe_ioctl                       Xtwe_ioctl
  80 #define twe_enable_interrupts           Xtwe_enable_interrupts
  81 #define twe_disable_interrupts          Xtwe_disable_interrupts
  82 #define twe_describe_controller         Xtwe_describe_controller
  83 #define twe_describe_code               Xtwe_describe_code
  84 #define twe_print_controller            Xtwe_print_controller
  85
  86 /* public symbols defined in twe_freebsd.c */
  87 #define twe_attach_drive                Xtwe_attach_drive
  88 #define twe_clear_pci_parity_error      Xtwe_clear_pci_parity_error
  89 #define twe_clear_pci_abort             Xtwe_clear_pci_abort
  90 #define twed_intr                       Xtwed_intr
  91 #define twe_allocate_request            Xtwe_allocate_request
  92 #define twe_map_request                 Xtwe_map_request
  93 #define twe_unmap_request               Xtwe_unmap_request
  94
  95 /* public symbols defined in twe_tables.h */
  96 #define twe_table_status                Xtwe_table_status
  97 #define twe_table_unitstate             Xtwe_table_unitstate
  98 #define twe_table_unittype              Xtwe_table_unittype
  99 #define twe_table_aen                   Xtwe_table_aen
 100 #define twe_table_opcode                Xtwe_table_opcode
 101
 102 #define TWE_MALLOC_CLASS                M_XTWE
 103
 104 #else /* TWE_OVERRIDE */
 105
 106 #define TWE_MALLOC_CLASS                M_TWE
 107
 108 #endif /* TWE_OVERRIDE */
 109
 110 /*
 111  * Wrappers for bus-space actions
 112  */
 113 #define TWE_CONTROL(sc, val)            bus_space_write_4(sc->twe_btag, sc->twe_bhandle, 0x0, (u_int32_t)val)
 114 #define TWE_STATUS(sc)                  (u_int32_t)bus_space_read_4(sc->twe_btag, sc->twe_bhandle, 0x4)
 115 #define TWE_COMMAND_QUEUE(sc, val)      bus_space_write_4(sc->twe_btag, sc->twe_bhandle, 0x8, (u_int32_t)val)
 116 #define TWE_RESPONSE_QUEUE(sc)          (TWE_Response_Queue)bus_space_read_4(sc->twe_btag, sc->twe_bhandle, 0xc)
 117
 118 /*
 119  * FreeBSD-specific softc elements
 120  */
 121 #define TWE_PLATFORM_SOFTC                                                              \
 122     device_t                    twe_dev;                /* bus device */                \
 123     cdev_t                      twe_dev_t;              /* control device */            \
 124     struct resource             *twe_io;                /* register interface window */ \
 125     bus_space_handle_t          twe_bhandle;            /* bus space handle */          \
 126     bus_space_tag_t             twe_btag;               /* bus space tag */             \
 127     bus_dma_tag_t               twe_parent_dmat;        /* parent DMA tag */            \
 128     bus_dma_tag_t               twe_buffer_dmat;        /* data buffer DMA tag */       \
 129     struct resource             *twe_irq;               /* interrupt */                 \
 130     void                        *twe_intr;              /* interrupt handle */          \
 131     struct intr_config_hook     twe_ich;                /* delayed-startup hook */      \
 132     struct sysctl_ctx_list      sysctl_ctx;                                             \
 133     struct sysctl_oid           *sysctl_tree;
 134
 135 /*
 136  * FreeBSD-specific request elements
 137  */
 138 #define TWE_PLATFORM_REQUEST                                                                            \
 139     bus_dmamap_t                tr_cmdmap;      /* DMA map for command */                               \
 140     u_int32_t                   tr_cmdphys;     /* address of command in controller space */            \
 141     bus_dmamap_t                tr_dmamap;      /* DMA map for data */                                  \
 142     u_int32_t                   tr_dataphys;    /* data buffer base address in controller space */
 143
 144 /*
 145  * Output identifying the controller/disk
 146  */
 147 #define twe_printf(sc, fmt, args...)    device_printf(sc->twe_dev, fmt , ##args)
 148 #define twed_printf(twed, fmt, args...) device_printf(twed->twed_dev, fmt , ##args)
 149
 150 #if defined(__DragonFly__) || __FreeBSD_version < 500003
 151 # include <machine/clock.h>
 152
 153 #ifndef __DragonFly__
 154 # define INTR_ENTROPY                   0
 155 #endif
 156
 157 # include <sys/buf.h>                   /* old buf style */
 158 # include <sys/buf2.h>                  /* bufq stuff */
 159 #define FREEBSD_4
 160 typedef struct bio                      twe_bio;
 161 typedef struct bio_queue_head           twe_bioq;
 162 #else
 163 # include <sys/bio.h>
 164 typedef struct bio                      twe_bio;
 165 typedef struct bio_queue_head           twe_bioq;
 166 # define TWE_BIO_QINIT(bq)              bioq_init(&bq);
 167 # define TWE_BIO_QINSERT(bq, bp)        bioqdisksort(&bq, bp)
 168 # define TWE_BIO_QFIRST(bq)             bioq_first(&bq)
 169 # define TWE_BIO_QREMOVE(bq, bp)        bioq_remove(&bq, bp)
 170 # define TWE_BIO_IS_READ(bp)            ((bp)->bio_cmd == BIO_READ)
 171 # define TWE_BIO_DATA(bp)               (bp)->bio_data
 172 # define TWE_BIO_LENGTH(bp)             (bp)->bio_bcount
 173 # define TWE_BIO_LBA(bp)                (bp)->bio_pblkno
 174 # define TWE_BIO_SOFTC(bp)              (bp)->bio_dev->si_drv1
 175 # define TWE_BIO_UNIT(bp)               ((struct twed_softc *)(TWE_BIO_SOFTC(bp)))->twed_drive->td_twe_unit
 176 # define TWE_BIO_SET_ERROR(bp, err)     do { (bp)->bio_error = err; (bp)->bio_flags |= BIO_ERROR;} while(0)
 177 # define TWE_BIO_HAS_ERROR(bp)          ((bp)->bio_flags & BIO_ERROR)
 178 # define TWE_BIO_RESID(bp)              (bp)->bio_resid
 179 # define TWE_BIO_DONE(bp)               biodone(bp)
 180 # define TWE_BIO_STATS_START(bp)        devstat_start_transaction(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats)
 181 # define TWE_BIO_STATS_END(bp)          devstat_end_transaction_bio(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats, bp)
 182 #endif
 183
 184 #endif /* FreeBSD or DragonFly */
 185
 186 #ifndef TWE_SUPPORTED_PLATFORM
 187 #error platform not supported
 188 #endif