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/ic/mpt_netbsd.h

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    1 /*      $NetBSD: mpt_netbsd.h,v 1.13 2019/09/21 07:08:27 maxv Exp $     */
    2 
    3 /*
    4  * Copyright (c) 2003 Wasabi Systems, Inc.
    5  * All rights reserved.
    6  *
    7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. All advertising materials mentioning features or use of this software
   18  *    must display the following acknowledgement:
   19  *      This product includes software developed for the NetBSD Project by
   20  *      Wasabi Systems, Inc.
   21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
   22  *    or promote products derived from this software without specific prior
   23  *    written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
   26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
   29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   35  * POSSIBILITY OF SUCH DAMAGE.
   36  */
   37 
   38 /*
   39  * Copyright (c) 2000, 2001 by Greg Ansley, Adam Prewett
   40  *
   41  * Partially derived from Matt Jacobs ISP driver.
   42  *
   43  * Redistribution and use in source and binary forms, with or without
   44  * modification, are permitted provided that the following conditions
   45  * are met:
   46  * 1. Redistributions of source code must retain the above copyright
   47  *    notice immediately at the beginning of the file, without modification,
   48  *    this list of conditions, and the following disclaimer.
   49  * 2. The name of the author may not be used to endorse or promote products
   50  *    derived from this software without specific prior written permission.
   51  *
   52  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   55  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   56  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   61  */
   62 /*
   63  * Additional Copyright (c) 2002 by Matthew Jacob under same license.
   64  */
   65 
   66 /*
   67  * mpt_netbsd.h:
   68  *
   69  * NetBSD-specific definitions for LSI Fusion adapters.
   70  *
   71  * Adapted from the FreeBSD "mpt" driver by Jason R. Thorpe for
   72  * Wasabi Systems, Inc.
   73  *
   74  * Additional contributions by Garrett D'Amore on behalf of TELES AG.
   75  */
   76 
   77 #ifndef _DEV_IC_MPT_NETBSD_H_
   78 #define _DEV_IC_MPT_NETBSD_H_
   79 
   80 #include <sys/param.h>
   81 #include <sys/systm.h>
   82 #include <sys/malloc.h>
   83 #include <sys/kernel.h>
   84 #include <sys/callout.h>
   85 #include <sys/errno.h>
   86 #include <sys/buf.h>
   87 #include <sys/queue.h>
   88 #include <sys/device.h>
   89 
   90 #include <sys/bus.h>
   91 #include <sys/intr.h>
   92 
   93 #include <dev/scsipi/scsi_all.h>
   94 #include <dev/scsipi/scsipi_all.h>
   95 #include <dev/scsipi/scsiconf.h>
   96 
   97 #include <dev/ic/mpt_mpilib.h>
   98 
   99 /* Max MPT Reply we are willing to accept (must be a power of 2). */
  100 #define MPT_REPLY_SIZE          128
  101 
  102 #define MPT_MAX_REQUESTS(mpt)   ((mpt)->is_fc ? 1024 : 256)
  103 #define MPT_REQUEST_AREA        512
  104 #define MPT_SENSE_SIZE          32      /* included in MPT_REQUEST_AREA */
  105 #define MPT_REQ_MEM_SIZE(mpt)   (MPT_MAX_REQUESTS(mpt) * MPT_REQUEST_AREA)
  106 
  107 /*
  108  * We cannot tell prior to getting IOC facts how big the IOC's request
  109  * area is. Because of this we cannot tell at compile time how many
  110  * simple SG elements we can fit within an IOC request prior to having
  111  * to put in a chain element.
  112  *
  113  * Experimentally we know that the Ultra4 parts have a 96 byte request
  114  * element size and the Fibre Channel units have a 144 byte request
  115  * element size. Therefore, if we have 512-32 (== 480) bytes of request
  116  * area to play with, we have room for between 3 and 5 request sized
  117  * regions- the first of which is the command  plus a simple SG list,
  118  * the rest of which are chained continuation SG lists. Given that the
  119  * normal request we use is 48 bytes w/o the first SG element, we can
  120  * assume we have 480-48 == 432 bytes to have simple SG elements and/or
  121  * chain elements. If we assume 32 bit addressing, this works out to
  122  * 54 SG or chain elements. If we assume 5 chain elements, then we have
  123  * a maximum of 49 separate actual SG segments.
  124  */
  125 #define MPT_SGL_MAX             49
  126 
  127 #define MPT_RQSL(mpt)           ((mpt)->request_frame_size << 2)
  128 #define MPT_NSGL(mpt)           (MPT_RQSL(mpt) / sizeof(SGE_SIMPLE32))
  129 
  130 #define MPT_NSGL_FIRST(mpt)                                     \
  131         ((((mpt)->request_frame_size << 2) -                    \
  132           sizeof(MSG_SCSI_IO_REQUEST) -                         \
  133           sizeof(SGE_IO_UNION)) / sizeof(SGE_SIMPLE32))
  134 
  135 /*
  136  * Convert a physical address returned from IOC to a virtual address
  137  * needed to access the data.
  138  */
  139 #define MPT_REPLY_PTOV(m, x)                                    \
  140         ((void *)(&(m)->reply[(((x) << 1) - (m)->reply_phys)]))
  141 
  142 enum mpt_req_state {
  143         REQ_FREE,
  144         REQ_IN_PROGRESS,
  145         REQ_TIMEOUT,
  146         REQ_ON_CHIP,
  147         REQ_DONE
  148 };
  149 typedef struct req_entry {
  150         uint16_t        index;          /* index of this entry */
  151         struct scsipi_xfer *xfer;       /* scsipi xfer request */
  152         void            *req_vbuf;      /* virtual address of entry */
  153         void            *sense_vbuf;    /* virtual address of sense data */
  154         bus_addr_t      req_pbuf;       /* physical address of entry */
  155         bus_addr_t      sense_pbuf;     /* physical address of sense data */
  156         bus_dmamap_t    dmap;           /* DMA map for data buffer */
  157         SLIST_ENTRY(req_entry) link;    /* pointer to next in list */
  158         enum mpt_req_state debug;       /* debugging */
  159         uint32_t        sequence;       /* sequence number */
  160 } request_t;
  161 
  162 typedef struct mpt_softc {
  163         device_t        sc_dev;         /* base device glue */
  164 
  165         /* Locking context */
  166         int             mpt_splsaved;
  167         uint32_t        mpt_islocked;
  168 
  169         int             verbose : 3,
  170                         mpt_locksetup : 1,
  171                         is_fc : 1,
  172                         is_scsi : 1,
  173                         is_sas : 1,
  174                         bus : 1,
  175                         : 23;
  176 
  177         /* IOC facts */
  178         uint16_t        mpt_global_credits;
  179         uint16_t        request_frame_size;
  180         uint8_t         mpt_max_devices;
  181         uint8_t         mpt_max_buses;
  182 
  183         /* Port facts */
  184         uint16_t        mpt_ini_id;
  185 
  186         /* Device configuration information */
  187         union {
  188                 struct mpt_spi_cfg {
  189                         fCONFIG_PAGE_SCSI_PORT_0        _port_page0;
  190                         fCONFIG_PAGE_SCSI_PORT_1        _port_page1;
  191                         fCONFIG_PAGE_SCSI_PORT_2        _port_page2;
  192                         fCONFIG_PAGE_SCSI_DEVICE_0      _dev_page0[16];
  193                         fCONFIG_PAGE_SCSI_DEVICE_1      _dev_page1[16];
  194                         uint16_t                        _tag_enable;
  195                         uint16_t                        _disc_enable;
  196                         uint16_t                        _report_xfer_mode;
  197                 } spi;
  198 #define mpt_port_page0          cfg.spi._port_page0
  199 #define mpt_port_page1          cfg.spi._port_page1
  200 #define mpt_port_page2          cfg.spi._port_page2
  201 #define mpt_dev_page0           cfg.spi._dev_page0
  202 #define mpt_dev_page1           cfg.spi._dev_page1
  203 #define mpt_tag_enable          cfg.spi._tag_enable
  204 #define mpt_disc_enable         cfg.spi._disc_enable
  205 #define mpt_report_xfer_mode    cfg.spi._report_xfer_mode
  206 
  207                 struct mpt_fc_cfg {
  208                         uint8_t         nada;
  209                 } fc;
  210         } cfg;
  211 
  212         bus_space_tag_t         sc_st;
  213         bus_space_handle_t      sc_sh;
  214         bus_dma_tag_t           sc_dmat;
  215 
  216         /* Reply memory */
  217         bus_dmamap_t            reply_dmap;
  218         char                    *reply;
  219         bus_addr_t              reply_phys;
  220 
  221         /* Request memory */
  222         bus_dmamap_t            request_dmap;
  223         char                    *request;
  224         bus_addr_t              request_phys;
  225 
  226         /* SCSIPI and software management */
  227         request_t               *request_pool;
  228         SLIST_HEAD(req_queue, req_entry) request_free_list;
  229         request_t      *mngt_req;
  230 
  231         struct scsipi_adapter   sc_adapter;
  232         struct scsipi_channel   sc_channel;
  233         device_t       sc_scsibus_dv; /*So we can rescan in case of errors*/
  234 
  235         uint32_t                sequence;       /* sequence number */
  236         uint32_t                timeouts;       /* timeout count */
  237         uint32_t                success;        /* success after timeout */
  238 
  239         /* To restore configuration after hard reset. */
  240         void                    (*sc_set_config_regs)(struct mpt_softc *);
  241 } mpt_softc_t;
  242 
  243 #define MPT_SYNC_REQ(mpt, req, ops)                             \
  244         bus_dmamap_sync((mpt)->sc_dmat, (mpt)->request_dmap,    \
  245             (req)->req_pbuf - (mpt)->request_phys,              \
  246             MPT_REQUEST_AREA, (ops))
  247 
  248 #define mpt_read(mpt, reg)                                      \
  249         bus_space_read_4((mpt)->sc_st, (mpt)->sc_sh, (reg))
  250 #define mpt_write(mpt, reg, val)                                \
  251         bus_space_write_4((mpt)->sc_st, (mpt)->sc_sh, (reg), (val))
  252 
  253 void    mpt_scsipi_attach(mpt_softc_t *);
  254 int     mpt_dma_mem_alloc(mpt_softc_t *);
  255 int     mpt_intr(void *);
  256 void    mpt_prt(mpt_softc_t *, const char *, ...) __printflike(2, 3);
  257 
  258 #define mpt_set_config_regs(mpt)                                \
  259 do {                                                            \
  260         if ((mpt)->sc_set_config_regs != NULL)                  \
  261                 (*(mpt)->sc_set_config_regs)((mpt));            \
  262 } while (/*CONSTCOND*/0)
  263 
  264 #endif /* _DEV_IC_MPT_NETBSD_H_ */

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