sys/dev/raid/twa/twa_externs.h

   1 /*-
   2  * Copyright (c) 2003-04 3ware, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *      $FreeBSD$
  27  * $DragonFly: src/sys/dev/raid/twa/twa_externs.h,v 1.1 2004/04/16 22:13:16 drhodus Exp $
  28  */
  29
  30 /*
  31  * 3ware driver for 9000 series storage controllers.
  32  *
  33  * Author: Vinod Kashyap
  34  */
  35
  36
  37 /* Global data structures */
  38 extern char                     twa_fw_img[];
  39 extern int                      twa_fw_img_size;
  40 extern struct twa_message       twa_aen_table[];
  41 extern char                     *twa_aen_severity_table[];
  42 extern struct twa_message       twa_error_table[];
  43
  44
  45 /* Functions in twa.c */
  46 extern int      twa_setup(struct twa_softc *sc);                /* do early driver/controller setup */
  47 extern int      twa_deinit_ctlr(struct twa_softc *sc);          /* stop controller */
  48 extern void     twa_interrupt(struct twa_softc *sc);            /* ISR */
  49 extern int      twa_ioctl(struct twa_softc *sc, int cmd, void *addr);/* handle user request */
  50 extern void     twa_enable_interrupts(struct twa_softc *sc);    /* enable controller interrupts */
  51 extern void     twa_disable_interrupts(struct twa_softc *sc);   /* disable controller interrupts */
  52 extern void     twa_complete_io(struct twa_request *tr);        /* I/O completion callback */
  53 extern int      twa_reset(struct twa_softc *sc);                /* (soft) reset controller */
  54 extern int      twa_submit_io(struct twa_request *tr);          /* wrapper to twa_start */
  55 extern int      twa_start(struct twa_request *tr);              /* submit command to controller */
  56 extern char     *twa_find_msg_string(struct twa_message *table, u_int16_t code);/* lookup a msg */
  57 extern struct twa_request *twa_get_request(struct twa_softc *sc);/* get a req pkt from free pool */
  58 extern void     twa_release_request(struct twa_request *tr);    /* put a req pkt back into free pool */
  59 extern void     twa_describe_controller(struct twa_softc *sc);  /* describe controller info */
  60 extern void     twa_print_controller(struct twa_softc *sc);     /* print controller state */
  61
  62 /* Functions in twa_freebsd.c */
  63 extern void     twa_write_pci_config(struct twa_softc *sc, u_int32_t value, int size);/* write to pci config space */
  64 extern int      twa_alloc_req_pkts(struct twa_softc *sc, int num_reqs); /* alloc req & cmd pkts */
  65 extern int      twa_map_request(struct twa_request *tr);        /* copy cmd pkt & data to DMA'able memory */
  66 extern void     twa_unmap_request(struct twa_request *tr);      /* undo mapping */
  67
  68 /* Functions in twa_cam.c */
  69 extern void     twa_request_bus_scan(struct twa_softc *sc);     /* request CAM for a bus scan */
  70 extern int      twa_send_scsi_cmd(struct twa_request *tr, int cmd);/* send down a SCSI cmd */
  71 extern void     twa_scsi_complete(struct twa_request *tr);      /* complete a SCSI cmd by calling CAM */
  72 extern void     twa_drain_busy_queue(struct twa_softc *sc);     /* drain busy queue (during reset) */
  73
  74 extern int      twa_cam_setup(struct twa_softc *sc);            /* attach to CAM */
  75 extern void     twa_cam_detach(struct twa_softc *sc);           /* detach from CAM */
  76 extern void     twa_allow_new_requests(struct twa_softc *sc, void *ccb);/* unfreeze ccb flow from CAM */
  77 extern void     twa_disallow_new_requests(struct twa_softc *sc);/* freeze ccb flow from CAM */
  78