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/5.3/sys/dev/pdq/pdq_freebsd.h 130416 2004-06-13 17:29:10Z mlaier $
   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_memio.h>
   52 #include <machine/bus_pio.h>
   53 #include <machine/bus.h>
   54 #include <machine/resource.h>
   55 #include <sys/rman.h>
   56         
   57 #include <net/if.h>
   58 #include <net/if_arp.h>
   59 #include <net/if_dl.h>
   60 #include <net/if_media.h>
   61 #include <net/fddi.h>
   62 
   63 #include <net/bpf.h>
   64 
   65 #include <vm/vm.h>              /* for vtophys */
   66 #include <vm/pmap.h>            /* for vtophys */
   67 #include <machine/clock.h>      /* for DELAY */
   68 
   69 #endif  /* PDQ_HWSUPPORT */
   70 
   71 typedef struct _pdq_t pdq_t;
   72 typedef struct _pdq_csrs_t pdq_csrs_t;
   73 typedef struct _pdq_pci_csrs_t pdq_pci_csrs_t;
   74 typedef struct _pdq_lanaddr_t pdq_lanaddr_t;
   75 typedef unsigned int pdq_uint32_t;
   76 typedef unsigned short pdq_uint16_t;
   77 typedef unsigned char pdq_uint8_t;
   78 typedef enum _pdq_boolean_t pdq_boolean_t;
   79 typedef enum _pdq_type_t pdq_type_t;
   80 typedef enum _pdq_state_t pdq_state_t;
   81 typedef struct mbuf PDQ_OS_DATABUF_T;
   82 
   83 typedef bus_space_tag_t pdq_bus_t;
   84 typedef bus_space_handle_t pdq_bus_memaddr_t;
   85 typedef pdq_bus_memaddr_t pdq_bus_memoffset_t;
   86 
   87 extern devclass_t pdq_devclass;
   88 
   89 enum _pdq_type_t {
   90     PDQ_DEFPA,          /* PCI-bus */
   91     PDQ_DEFEA,          /* EISA-bus */
   92     PDQ_DEFTA,          /* TurboChannel */
   93     PDQ_DEFAA,          /* FutureBus+ */
   94     PDQ_DEFQA           /* Q-bus */
   95 };
   96 
   97 #define sc_ifmedia      ifmedia
   98 #define sc_if           arpcom.ac_if
   99 #define sc_bpf          sc_if.if_bpf
  100 #if 0 /* ALTQ */
  101 #define IFQ_DEQUEUE     IF_DEQUEUE
  102 #define IFQ_IS_EMPTY(q) ((q)->ifq_len == 0)
  103 #endif
  104 
  105 typedef struct _pdq_os_ctx_t {
  106         struct arpcom           arpcom;
  107         struct ifmedia          ifmedia;
  108         device_t                dev;
  109         int                     debug;
  110 
  111         pdq_t *                 sc_pdq;
  112         int                     sc_flags;
  113 #define PDQIF_DOWNCALL          0x0001  /* active calling from if to pdq */
  114 
  115         struct resource *       io;
  116         int                     io_rid;
  117         int                     io_type;
  118         bus_space_handle_t      io_bsh;
  119         bus_space_tag_t         io_bst;
  120 
  121         struct resource *       mem;
  122         int                     mem_rid;
  123         int                     mem_type;
  124         bus_space_handle_t      mem_bsh;
  125         bus_space_tag_t         mem_bst;
  126 
  127         struct resource *       irq;
  128         int                     irq_rid;
  129         void *                  irq_ih;
  130 
  131         struct mtx              mtx;
  132 } pdq_softc_t;
  133 
  134 #define PDQ_LOCK(_sc)           mtx_lock(&(_sc)->mtx)
  135 #define PDQ_UNLOCK(_sc)         mtx_unlock(&(_sc)->mtx)
  136 
  137 #define PDQ_OS_HDR_OFFSET       PDQ_RX_FC_OFFSET
  138 
  139 #define PDQ_OS_PAGESIZE         PAGE_SIZE
  140 #define PDQ_OS_TX_TRANSMIT      5
  141 
  142 #define PDQ_OS_IORD_32(bt, bh, off)             bus_space_read_4(bt, bh, off)
  143 #define PDQ_OS_IOWR_32(bt, bh, off, data)       bus_space_write_4(bt, bh, off, data)
  144 #define PDQ_OS_IORD_8(bt, bh, off)              bus_space_read_1(bt, bh, off)
  145 #define PDQ_OS_IOWR_8(bt, bh, off, data)        bus_space_write_1(bt, bh, off, data)
  146 
  147 #define PDQ_CSR_OFFSET(base, offset)            (0 + (offset)*sizeof(pdq_uint32_t))
  148 #define PDQ_CSR_WRITE(csr, name, data)          PDQ_OS_IOWR_32((csr)->csr_bus, (csr)->csr_base, (csr)->name, data)
  149 #define PDQ_CSR_READ(csr, name)                 PDQ_OS_IORD_32((csr)->csr_bus, (csr)->csr_base, (csr)->name)
  150 
  151 #define PDQ_OS_DATABUF_FREE(pdq, b)             (m_freem(b))
  152 
  153 #if defined(PDQ_OSSUPPORT)
  154 #define PDQ_OS_TX_TIMEOUT               5       /* seconds */
  155 
  156 #define PDQ_OS_IFP_TO_SOFTC(ifp)        ((pdq_softc_t *) (ifp)->if_softc)
  157 #define PDQ_BPF_MTAP(sc, m)             BPF_MTAP(&(sc)->arpcom.ac_if, m)
  158 
  159 #endif  /* PDQ_OSSUPPORT */
  160 
  161 #if defined(PDQ_HWSUPPORT)
  162 
  163 #define PDQ_OS_PREFIX                   "%s: "
  164 #define PDQ_OS_PREFIX_ARGS              pdq->pdq_os_name
  165 
  166 #define PDQ_OS_PTR_FMT  "%p"
  167 #define PDQ_OS_CSR_FMT  "0x%x"
  168 
  169 #define PDQ_OS_USEC_DELAY(n)            DELAY(n)
  170 #ifdef __alpha__
  171 #define PDQ_OS_VA_TO_BUSPA(pdq, p)      alpha_XXX_dmamap((vm_offset_t)p)
  172 #else
  173 #define PDQ_OS_VA_TO_BUSPA(pdq, p)      vtophys(p)
  174 #endif
  175 
  176 #define PDQ_OS_MEMALLOC(n)              malloc(n, M_DEVBUF, M_NOWAIT)
  177 #define PDQ_OS_MEMFREE(p, n)            free((void *) p, M_DEVBUF)
  178 #define PDQ_OS_MEMZERO(p, n)            bzero((caddr_t)(p), (n))
  179 #define PDQ_OS_MEMALLOC_CONTIG(n)       contigmalloc(n, M_DEVBUF, M_NOWAIT, 0x800000, ~0, PAGE_SIZE, 0)
  180 #define PDQ_OS_MEMFREE_CONTIG(p, n)     contigfree(p, n, M_DEVBUF)
  181 
  182 #define PDQ_OS_DATABUF_SIZE                     (MCLBYTES)
  183 #define PDQ_OS_DATABUF_NEXT(b)                  ((b)->m_next)
  184 #define PDQ_OS_DATABUF_NEXT_SET(b, b1)          ((b)->m_next = (b1))
  185 #define PDQ_OS_DATABUF_NEXTPKT(b)               ((b)->m_nextpkt)
  186 #define PDQ_OS_DATABUF_NEXTPKT_SET(b, b1)       ((b)->m_nextpkt = (b1))
  187 #define PDQ_OS_DATABUF_LEN(b)                   ((b)->m_len)
  188 #define PDQ_OS_DATABUF_LEN_SET(b, n)            ((b)->m_len = (n))
  189 /* #define      PDQ_OS_DATABUF_LEN_ADJ(b, n)            ((b)->m_len += (n)) */
  190 #define PDQ_OS_DATABUF_PTR(b)                   (mtod((b), pdq_uint8_t *))
  191 #define PDQ_OS_DATABUF_ADJ(b, n)                ((b)->m_data += (n), (b)->m_len -= (n))
  192 
  193 #define PDQ_OS_DATABUF_ALLOC(pdq, b) do { \
  194     PDQ_OS_DATABUF_T *x_m0; \
  195     MGETHDR(x_m0, M_DONTWAIT, MT_DATA); \
  196     if (x_m0 != NULL) { \
  197         MCLGET(x_m0, M_DONTWAIT);       \
  198         if ((x_m0->m_flags & M_EXT) == 0) { \
  199             m_free(x_m0); \
  200             (b) = NULL; \
  201         } else { \
  202             (b) = x_m0; \
  203             x_m0->m_len = PDQ_OS_DATABUF_SIZE; \
  204         } \
  205     } else { \
  206         (b) = NULL; \
  207     } \
  208 } while (0)
  209 
  210 #define PDQ_OS_DATABUF_RESET(b) ((b)->m_data = (b)->m_ext.ext_buf, (b)->m_len = MCLBYTES)
  211 
  212 #define PDQ_OS_DATABUF_ENQUEUE(q, b)    do { \
  213     PDQ_OS_DATABUF_NEXTPKT_SET(b, NULL); \
  214     if ((q)->q_tail == NULL) \
  215         (q)->q_head = (b); \
  216     else \
  217         PDQ_OS_DATABUF_NEXTPKT_SET(((PDQ_OS_DATABUF_T *)(q)->q_tail), b); \
  218     (q)->q_tail = (b); \
  219 } while (0)
  220 
  221 #define PDQ_OS_DATABUF_DEQUEUE(q, b)    do { \
  222     if (((b) = (PDQ_OS_DATABUF_T *) (q)->q_head) != NULL) { \
  223         if (((q)->q_head = PDQ_OS_DATABUF_NEXTPKT(b)) == NULL) \
  224             (q)->q_tail = NULL; \
  225         PDQ_OS_DATABUF_NEXTPKT_SET(b, NULL); \
  226     } \
  227 } while (0)
  228 
  229 #define PDQ_OS_DATABUF_BUSPA(pdq, b)    PDQ_OS_VA_TO_BUSPA(pdq, PDQ_OS_DATABUF_PTR(b))
  230 
  231 #define PDQ_OS_CONSUMER_PRESYNC(pdq)            do { } while(0)
  232 #define PDQ_OS_CONSUMER_POSTSYNC(pdq)           do { } while(0)
  233 #define PDQ_OS_DESC_PRESYNC(pdq, d, s)          do { } while(0)
  234 #define PDQ_OS_DESC_POSTSYNC(pdq, d, s)         do { } while(0)
  235 #define PDQ_OS_CMDRQST_PRESYNC(pdq, s)          do { } while(0)
  236 #define PDQ_OS_CMDRQST_POSTSYNC(pdq, s)         do { } while(0)
  237 #define PDQ_OS_CMDRSP_PRESYNC(pdq, s)           do { } while(0)
  238 #define PDQ_OS_CMDRSP_POSTSYNC(pdq, s)          do { } while(0)
  239 #define PDQ_OS_RXPDU_PRESYNC(pdq, b, o, l)      do { } while(0)
  240 #define PDQ_OS_RXPDU_POSTSYNC(pdq, b, o, l)     do { } while(0)
  241 #define PDQ_OS_UNSOL_EVENT_PRESYNC(pdq, e)      do { } while(0)
  242 #define PDQ_OS_UNSOL_EVENT_POSTSYNC(pdq, e)     do { } while(0)
  243 
  244 #endif  /* PDQ_HWSUPPORT */
  245 
  246 /*
  247  * OS dependent functions provided by pdq_ifsubr.c to pdq.c
  248  */
  249 void    pdq_os_addr_fill (pdq_t *pdq, pdq_lanaddr_t *addrs, size_t numaddrs);
  250 void    pdq_os_receive_pdu (pdq_t *, PDQ_OS_DATABUF_T *, size_t, int);
  251 void    pdq_os_restart_transmitter (pdq_t *pdq);
  252 void    pdq_os_transmit_done (pdq_t *, PDQ_OS_DATABUF_T *);
  253 void    pdq_os_update_status (pdq_t *, const void *);
  254 
  255 /*
  256  * Driver interfaces functions provided by pdq.c to pdq_ifsubr.c
  257  */
  258 pdq_boolean_t   pdq_queue_transmit_data (pdq_t *pdq, PDQ_OS_DATABUF_T *pdu);
  259 void            pdq_run  (pdq_t *pdq);
  260 pdq_state_t     pdq_stop (pdq_t *pdq);
  261 
  262 /*
  263  * OS dependent functions provided by
  264  * pdq_ifsubr.c or pdq.c to the bus front ends
  265  */
  266 void            pdq_ifattach (pdq_softc_t *);
  267 void            pdq_ifdetach (pdq_softc_t *);
  268 void            pdq_free (device_t);
  269 int             pdq_interrupt (pdq_t *pdq);
  270 void            pdq_hwreset (pdq_t *pdq);
  271 pdq_t *         pdq_initialize (pdq_bus_t bus, pdq_bus_memaddr_t csr_va,
  272                                 const char *name, int unit,
  273                                 void *ctx, pdq_type_t type);
  274 /*
  275  * Misc prototypes.
  276  */
  277 void            pdq_flush_transmitter(pdq_t *pdq);

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