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/pdq/pdq_freebsd.h

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    1 /*      $NetBSD: pdqvar.h,v 1.27 2000/05/03 19:17:54 thorpej Exp $      */
    2 
    3 /*-
    4  * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
    5  * All rights reserved.
    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. The name of the author may not be used to endorse or promote products
   13  *    derived from this software without specific prior written permission
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * Id: pdqvar.h,v 1.21 1997/03/21 21:16:04 thomas Exp
   27  * $FreeBSD: releng/6.2/sys/dev/pdq/pdq_freebsd.h 147256 2005-06-10 16:49:24Z brooks $
   28  *
   29  */
   30 
   31 /*
   32  * DEC PDQ FDDI Controller; PDQ O/S dependent definitions
   33  *
   34  * Written by Matt Thomas
   35  *
   36  */
   37 
   38 #if defined(PDQ_HWSUPPORT)
   39 #include <sys/param.h>
   40 #include <sys/systm.h>
   41 #include <sys/kernel.h>
   42 #include <sys/lock.h>
   43 #include <sys/mutex.h>
   44 #include <sys/malloc.h>
   45 #include <sys/socket.h>
   46 #include <sys/sockio.h>
   47 
   48 #include <sys/module.h>
   49 #include <sys/bus.h>
   50 
   51 #include <machine/bus.h>
   52 #include <machine/resource.h>
   53 #include <sys/rman.h>
   54         
   55 #include <net/if.h>
   56 #include <net/if_arp.h>
   57 #include <net/if_dl.h>
   58 #include <net/if_media.h>
   59 #include <net/fddi.h>
   60 
   61 #include <net/bpf.h>
   62 
   63 #include <vm/vm.h>              /* for vtophys */
   64 #include <vm/pmap.h>            /* for vtophys */
   65 #include <machine/clock.h>      /* for DELAY */
   66 
   67 #endif  /* PDQ_HWSUPPORT */
   68 
   69 typedef struct _pdq_t pdq_t;
   70 typedef struct _pdq_csrs_t pdq_csrs_t;
   71 typedef struct _pdq_pci_csrs_t pdq_pci_csrs_t;
   72 typedef struct _pdq_lanaddr_t pdq_lanaddr_t;
   73 typedef unsigned int pdq_uint32_t;
   74 typedef unsigned short pdq_uint16_t;
   75 typedef unsigned char pdq_uint8_t;
   76 typedef enum _pdq_boolean_t pdq_boolean_t;
   77 typedef enum _pdq_type_t pdq_type_t;
   78 typedef enum _pdq_state_t pdq_state_t;
   79 typedef struct mbuf PDQ_OS_DATABUF_T;
   80 
   81 typedef bus_space_tag_t pdq_bus_t;
   82 typedef bus_space_handle_t pdq_bus_memaddr_t;
   83 typedef pdq_bus_memaddr_t pdq_bus_memoffset_t;
   84 
   85 extern devclass_t pdq_devclass;
   86 
   87 enum _pdq_type_t {
   88     PDQ_DEFPA,          /* PCI-bus */
   89     PDQ_DEFEA,          /* EISA-bus */
   90     PDQ_DEFTA,          /* TurboChannel */
   91     PDQ_DEFAA,          /* FutureBus+ */
   92     PDQ_DEFQA           /* Q-bus */
   93 };
   94 
   95 #define sc_ifmedia      ifmedia
   96 #if 0 /* ALTQ */
   97 #define IFQ_DEQUEUE     IF_DEQUEUE
   98 #define IFQ_IS_EMPTY(q) ((q)->ifq_len == 0)
   99 #endif
  100 
  101 typedef struct _pdq_os_ctx_t {
  102         struct ifnet            *ifp;
  103         struct ifmedia          ifmedia;
  104         device_t                dev;
  105         int                     debug;
  106 
  107         pdq_t *                 sc_pdq;
  108         int                     sc_flags;
  109 #define PDQIF_DOWNCALL          0x0001  /* active calling from if to pdq */
  110 
  111         struct resource *       io;
  112         int                     io_rid;
  113         int                     io_type;
  114         bus_space_handle_t      io_bsh;
  115         bus_space_tag_t         io_bst;
  116 
  117         struct resource *       mem;
  118         int                     mem_rid;
  119         int                     mem_type;
  120         bus_space_handle_t      mem_bsh;
  121         bus_space_tag_t         mem_bst;
  122 
  123         struct resource *       irq;
  124         int                     irq_rid;
  125         void *                  irq_ih;
  126 
  127         struct mtx              mtx;
  128 } pdq_softc_t;
  129 
  130 #define PDQ_LOCK(_sc)           mtx_lock(&(_sc)->mtx)
  131 #define PDQ_UNLOCK(_sc)         mtx_unlock(&(_sc)->mtx)
  132 
  133 #define PDQ_OS_HDR_OFFSET       PDQ_RX_FC_OFFSET
  134 
  135 #define PDQ_OS_PAGESIZE         PAGE_SIZE
  136 #define PDQ_OS_TX_TRANSMIT      5
  137 
  138 #define PDQ_OS_IORD_32(bt, bh, off)             bus_space_read_4(bt, bh, off)
  139 #define PDQ_OS_IOWR_32(bt, bh, off, data)       bus_space_write_4(bt, bh, off, data)
  140 #define PDQ_OS_IORD_8(bt, bh, off)              bus_space_read_1(bt, bh, off)
  141 #define PDQ_OS_IOWR_8(bt, bh, off, data)        bus_space_write_1(bt, bh, off, data)
  142 
  143 #define PDQ_CSR_OFFSET(base, offset)            (0 + (offset)*sizeof(pdq_uint32_t))
  144 #define PDQ_CSR_WRITE(csr, name, data)          PDQ_OS_IOWR_32((csr)->csr_bus, (csr)->csr_base, (csr)->name, data)
  145 #define PDQ_CSR_READ(csr, name)                 PDQ_OS_IORD_32((csr)->csr_bus, (csr)->csr_base, (csr)->name)
  146 
  147 #define PDQ_OS_DATABUF_FREE(pdq, b)             (m_freem(b))
  148 
  149 #if defined(PDQ_OSSUPPORT)
  150 #define PDQ_OS_TX_TIMEOUT               5       /* seconds */
  151 
  152 #define PDQ_OS_IFP_TO_SOFTC(ifp)        ((pdq_softc_t *) (ifp)->if_softc)
  153 #define PDQ_BPF_MTAP(sc, m)             BPF_MTAP((sc)->ifp, m)
  154 #define PDQ_IFNET(sc)                   ((sc)->ifp)
  155 
  156 #endif  /* PDQ_OSSUPPORT */
  157 
  158 #if defined(PDQ_HWSUPPORT)
  159 
  160 #define PDQ_OS_PREFIX                   "%s: "
  161 #define PDQ_OS_PREFIX_ARGS              pdq->pdq_os_name
  162 
  163 #define PDQ_OS_PTR_FMT  "%p"
  164 #define PDQ_OS_CSR_FMT  "0x%x"
  165 
  166 #define PDQ_OS_USEC_DELAY(n)            DELAY(n)
  167 #ifdef __alpha__
  168 #define PDQ_OS_VA_TO_BUSPA(pdq, p)      alpha_XXX_dmamap((vm_offset_t)p)
  169 #else
  170 #define PDQ_OS_VA_TO_BUSPA(pdq, p)      vtophys(p)
  171 #endif
  172 
  173 #define PDQ_OS_MEMALLOC(n)              malloc(n, M_DEVBUF, M_NOWAIT)
  174 #define PDQ_OS_MEMFREE(p, n)            free((void *) p, M_DEVBUF)
  175 #define PDQ_OS_MEMZERO(p, n)            bzero((caddr_t)(p), (n))
  176 #define PDQ_OS_MEMALLOC_CONTIG(n)       contigmalloc(n, M_DEVBUF, M_NOWAIT, 0x800000, ~0, PAGE_SIZE, 0)
  177 #define PDQ_OS_MEMFREE_CONTIG(p, n)     contigfree(p, n, M_DEVBUF)
  178 
  179 #define PDQ_OS_DATABUF_SIZE                     (MCLBYTES)
  180 #define PDQ_OS_DATABUF_NEXT(b)                  ((b)->m_next)
  181 #define PDQ_OS_DATABUF_NEXT_SET(b, b1)          ((b)->m_next = (b1))
  182 #define PDQ_OS_DATABUF_NEXTPKT(b)               ((b)->m_nextpkt)
  183 #define PDQ_OS_DATABUF_NEXTPKT_SET(b, b1)       ((b)->m_nextpkt = (b1))
  184 #define PDQ_OS_DATABUF_LEN(b)                   ((b)->m_len)
  185 #define PDQ_OS_DATABUF_LEN_SET(b, n)            ((b)->m_len = (n))
  186 /* #define      PDQ_OS_DATABUF_LEN_ADJ(b, n)            ((b)->m_len += (n)) */
  187 #define PDQ_OS_DATABUF_PTR(b)                   (mtod((b), pdq_uint8_t *))
  188 #define PDQ_OS_DATABUF_ADJ(b, n)                ((b)->m_data += (n), (b)->m_len -= (n))
  189 
  190 #define PDQ_OS_DATABUF_ALLOC(pdq, b) do { \
  191     PDQ_OS_DATABUF_T *x_m0; \
  192     MGETHDR(x_m0, M_DONTWAIT, MT_DATA); \
  193     if (x_m0 != NULL) { \
  194         MCLGET(x_m0, M_DONTWAIT);       \
  195         if ((x_m0->m_flags & M_EXT) == 0) { \
  196             m_free(x_m0); \
  197             (b) = NULL; \
  198         } else { \
  199             (b) = x_m0; \
  200             x_m0->m_len = PDQ_OS_DATABUF_SIZE; \
  201         } \
  202     } else { \
  203         (b) = NULL; \
  204     } \
  205 } while (0)
  206 
  207 #define PDQ_OS_DATABUF_RESET(b) ((b)->m_data = (b)->m_ext.ext_buf, (b)->m_len = MCLBYTES)
  208 
  209 #define PDQ_OS_DATABUF_ENQUEUE(q, b)    do { \
  210     PDQ_OS_DATABUF_NEXTPKT_SET(b, NULL); \
  211     if ((q)->q_tail == NULL) \
  212         (q)->q_head = (b); \
  213     else \
  214         PDQ_OS_DATABUF_NEXTPKT_SET(((PDQ_OS_DATABUF_T *)(q)->q_tail), b); \
  215     (q)->q_tail = (b); \
  216 } while (0)
  217 
  218 #define PDQ_OS_DATABUF_DEQUEUE(q, b)    do { \
  219     if (((b) = (PDQ_OS_DATABUF_T *) (q)->q_head) != NULL) { \
  220         if (((q)->q_head = PDQ_OS_DATABUF_NEXTPKT(b)) == NULL) \
  221             (q)->q_tail = NULL; \
  222         PDQ_OS_DATABUF_NEXTPKT_SET(b, NULL); \
  223     } \
  224 } while (0)
  225 
  226 #define PDQ_OS_DATABUF_BUSPA(pdq, b)    PDQ_OS_VA_TO_BUSPA(pdq, PDQ_OS_DATABUF_PTR(b))
  227 
  228 #define PDQ_OS_CONSUMER_PRESYNC(pdq)            do { } while(0)
  229 #define PDQ_OS_CONSUMER_POSTSYNC(pdq)           do { } while(0)
  230 #define PDQ_OS_DESC_PRESYNC(pdq, d, s)          do { } while(0)
  231 #define PDQ_OS_DESC_POSTSYNC(pdq, d, s)         do { } while(0)
  232 #define PDQ_OS_CMDRQST_PRESYNC(pdq, s)          do { } while(0)
  233 #define PDQ_OS_CMDRQST_POSTSYNC(pdq, s)         do { } while(0)
  234 #define PDQ_OS_CMDRSP_PRESYNC(pdq, s)           do { } while(0)
  235 #define PDQ_OS_CMDRSP_POSTSYNC(pdq, s)          do { } while(0)
  236 #define PDQ_OS_RXPDU_PRESYNC(pdq, b, o, l)      do { } while(0)
  237 #define PDQ_OS_RXPDU_POSTSYNC(pdq, b, o, l)     do { } while(0)
  238 #define PDQ_OS_UNSOL_EVENT_PRESYNC(pdq, e)      do { } while(0)
  239 #define PDQ_OS_UNSOL_EVENT_POSTSYNC(pdq, e)     do { } while(0)
  240 
  241 #endif  /* PDQ_HWSUPPORT */
  242 
  243 /*
  244  * OS dependent functions provided by pdq_ifsubr.c to pdq.c
  245  */
  246 void    pdq_os_addr_fill (pdq_t *pdq, pdq_lanaddr_t *addrs, size_t numaddrs);
  247 void    pdq_os_receive_pdu (pdq_t *, PDQ_OS_DATABUF_T *, size_t, int);
  248 void    pdq_os_restart_transmitter (pdq_t *pdq);
  249 void    pdq_os_transmit_done (pdq_t *, PDQ_OS_DATABUF_T *);
  250 void    pdq_os_update_status (pdq_t *, const void *);
  251 
  252 /*
  253  * Driver interfaces functions provided by pdq.c to pdq_ifsubr.c
  254  */
  255 pdq_boolean_t   pdq_queue_transmit_data (pdq_t *pdq, PDQ_OS_DATABUF_T *pdu);
  256 void            pdq_run  (pdq_t *pdq);
  257 pdq_state_t     pdq_stop (pdq_t *pdq);
  258 
  259 /*
  260  * OS dependent functions provided by
  261  * pdq_ifsubr.c or pdq.c to the bus front ends
  262  */
  263 void            pdq_ifattach (pdq_softc_t *);
  264 void            pdq_ifdetach (pdq_softc_t *);
  265 void            pdq_free (device_t);
  266 int             pdq_interrupt (pdq_t *pdq);
  267 void            pdq_hwreset (pdq_t *pdq);
  268 pdq_t *         pdq_initialize (pdq_bus_t bus, pdq_bus_memaddr_t csr_va,
  269                                 const char *name, int unit,
  270                                 void *ctx, pdq_type_t type);
  271 /*
  272  * Misc prototypes.
  273  */
  274 void            pdq_flush_transmitter(pdq_t *pdq);

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