The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ips/ips.h

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    1 /*-
    2  * Copyright (c) 2002 Adaptec Inc.
    3  * All rights reserved.
    4  *
    5  * Written by: David Jeffery
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD: releng/7.3/sys/dev/ips/ips.h 161425 2006-08-17 22:50:33Z imp $
   29  */
   30 #ifndef _IPS_H
   31 #define _IPS_H
   32 
   33 #ifdef _KERNEL
   34 
   35 #include <sys/param.h>
   36 #include <sys/systm.h>
   37 #include <sys/kernel.h>
   38 #include <sys/module.h>
   39 #include <sys/bus.h>
   40 #include <sys/conf.h>
   41 #include <sys/types.h>
   42 #include <sys/queue.h>
   43 #include <sys/bio.h>
   44 #include <sys/malloc.h>
   45 #include <sys/mutex.h>
   46 #include <sys/sema.h>
   47 #include <sys/time.h>
   48 
   49 #include <machine/bus.h>
   50 #include <sys/rman.h>
   51 #include <machine/resource.h>
   52 
   53 MALLOC_DECLARE(M_IPSBUF);
   54 
   55 /*
   56  *  IPS MACROS
   57  */
   58 
   59 #define ips_read_1(sc,offset)           bus_space_read_1(sc->bustag, sc->bushandle, offset)
   60 #define ips_read_2(sc,offset)           bus_space_read_2(sc->bustag, sc->bushandle, offset)
   61 #define ips_read_4(sc,offset)           bus_space_read_4(sc->bustag, sc->bushandle, offset)
   62 
   63 #define ips_write_1(sc,offset,value)    bus_space_write_1(sc->bustag, sc->bushandle, offset, value)
   64 #define ips_write_2(sc,offset,value)    bus_space_write_2(sc->bustag, sc->bushandle, offset, value)
   65 #define ips_write_4(sc,offset,value)    bus_space_write_4(sc->bustag, sc->bushandle, offset, value)
   66 
   67 /* this is ugly.  It zeros the end elements in an ips_command_t struct starting with the status element */
   68 #define clear_ips_command(command)      bzero(&((command)->status), (unsigned long)(&(command)[1])-(unsigned long)&((command)->status))
   69 
   70 #define ips_read_request(iobuf)         ((iobuf)->bio_cmd == BIO_READ)
   71 
   72 #define COMMAND_ERROR(command)          (((command)->status.fields.basic_status & IPS_GSC_STATUS_MASK) >= IPS_MIN_ERROR)
   73 
   74 #define ips_set_error(command, error)   do {                            \
   75         (command)->status.fields.basic_status = IPS_DRV_ERROR;          \
   76         (command)->status.fields.reserved = ((error) & 0x0f);           \
   77 } while (0)
   78 
   79 #ifndef IPS_DEBUG
   80 #define DEVICE_PRINTF(x...)
   81 #define PRINTF(x...)
   82 #else
   83 #define DEVICE_PRINTF(level,x...)       if(IPS_DEBUG >= level)device_printf(x)
   84 #define PRINTF(level,x...)              if(IPS_DEBUG >= level)printf(x)
   85 #endif
   86 
   87 struct ips_softc;
   88 
   89 typedef struct {
   90         u_int32_t       status[IPS_MAX_CMD_NUM];
   91         u_int32_t       base_phys_addr;
   92         int             nextstatus;
   93         bus_dma_tag_t   dmatag;
   94         bus_dmamap_t    dmamap;
   95 } ips_copper_queue_t;
   96 
   97 /* used to keep track of current commands to the card */
   98 typedef struct ips_command{
   99         u_int8_t                command_number;
  100         u_int8_t                id;
  101         u_int8_t                timeout;
  102         struct ips_softc *      sc;
  103         bus_dma_tag_t           data_dmatag;
  104         bus_dmamap_t            data_dmamap;
  105         bus_dmamap_t            command_dmamap;
  106         void *                  command_buffer;
  107         u_int32_t               command_phys_addr;/*WARNING! must be changed if 64bit addressing ever used*/    
  108         ips_cmd_status_t        status;
  109         SLIST_ENTRY(ips_command)        next;
  110         void *                  data_buffer;
  111         void *                  arg;
  112         void                    (* callback)(struct ips_command *command);
  113 }ips_command_t;
  114 
  115 typedef struct ips_softc{
  116         struct resource *       iores;
  117         struct resource *       irqres;
  118         struct intr_config_hook ips_ich;
  119         int                     configured;
  120         int                     state;
  121         int                     iotype;
  122         int                     rid;
  123         int                     irqrid;
  124         void *                  irqcookie;
  125         bus_space_tag_t         bustag;
  126         bus_space_handle_t      bushandle;
  127         bus_dma_tag_t           adapter_dmatag;
  128         bus_dma_tag_t           command_dmatag;
  129         bus_dma_tag_t           sg_dmatag;
  130         device_t                dev;
  131         struct cdev *device_file;
  132         struct callout_handle   timer;
  133         u_int16_t               adapter_type;
  134         ips_adapter_info_t      adapter_info;
  135         device_t                diskdev[IPS_MAX_NUM_DRIVES];
  136         ips_drive_t             drives[IPS_MAX_NUM_DRIVES];
  137         u_int8_t                drivecount;
  138         u_int16_t               ffdc_resetcount;
  139         struct timeval          ffdc_resettime;
  140         u_int8_t                next_drive;
  141         u_int8_t                max_cmds;
  142         volatile u_int8_t       used_commands;
  143         ips_command_t           *commandarray;
  144         ips_command_t           *staticcmd;
  145         SLIST_HEAD(command_list, ips_command) free_cmd_list;
  146         int                     (* ips_adapter_reinit)(struct ips_softc *sc, 
  147                                                        int force);
  148         void                    (* ips_adapter_intr)(void *sc);
  149         void                    (* ips_issue_cmd)(ips_command_t *command);
  150         void                    (* ips_poll_cmd)(ips_command_t *command);
  151         ips_copper_queue_t *    copper_queue;
  152         struct mtx              queue_mtx;
  153         struct bio_queue_head   queue;
  154         struct sema             cmd_sema;
  155 
  156 }ips_softc_t;
  157 
  158 /* function defines from ips_ioctl.c */
  159 extern int ips_ioctl_request(ips_softc_t *sc, u_long ioctl_cmd, caddr_t addr, 
  160                                 int32_t flags);
  161 /* function defines from ips_disk.c */
  162 extern void ipsd_finish(struct bio *iobuf);
  163 
  164 /* function defines from ips_commands.c */
  165 extern int ips_flush_cache(ips_softc_t *sc);
  166 extern void ips_start_io_request(ips_softc_t *sc);
  167 extern int ips_get_drive_info(ips_softc_t *sc);
  168 extern int ips_get_adapter_info(ips_softc_t *sc);
  169 extern int ips_ffdc_reset(ips_softc_t *sc);
  170 extern int ips_update_nvram(ips_softc_t *sc); 
  171 extern int ips_clear_adapter(ips_softc_t *sc);
  172 
  173 /* function defines from ips.c */
  174 extern int ips_get_free_cmd(ips_softc_t *sc, ips_command_t **command, unsigned long flags);
  175 extern void ips_insert_free_cmd(ips_softc_t *sc, ips_command_t *command);
  176 extern int ips_adapter_init(ips_softc_t *sc);
  177 extern int ips_morpheus_reinit(ips_softc_t *sc, int force);
  178 extern int ips_adapter_free(ips_softc_t *sc);
  179 extern void ips_morpheus_intr(void *sc);
  180 extern void ips_issue_morpheus_cmd(ips_command_t *command);
  181 extern void ips_morpheus_poll(ips_command_t *command);
  182 extern int ips_copperhead_reinit(ips_softc_t *sc, int force);
  183 extern void ips_copperhead_intr(void *sc);
  184 extern void ips_issue_copperhead_cmd(ips_command_t *command);
  185 extern void ips_copperhead_poll(ips_command_t *command);
  186 
  187 #endif
  188 #endif

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