drivers/net/fddi/skfp/h/osdef1st.h

   1 /******************************************************************************
   2  *
   3  *      (C)Copyright 1998,1999 SysKonnect,
   4  *      a business unit of Schneider & Koch & Co. Datensysteme GmbH.
   5  *
   6  *      This program is free software; you can redistribute it and/or modify
   7  *      it under the terms of the GNU General Public License as published by
   8  *      the Free Software Foundation; either version 2 of the License, or
   9  *      (at your option) any later version.
  10  *
  11  *      The information in this file is provided "AS IS" without warranty.
  12  *
  13  ******************************************************************************/
  14
  15 /*
  16  * Operating system-dependent definitions that have to be defined
  17  * before any other header files are included.
  18  */
  19
  20 // HWM (HardWare Module) Definitions
  21 // -----------------------
  22
  23 #include <asm/byteorder.h>
  24
  25 #ifdef __LITTLE_ENDIAN
  26 #define LITTLE_ENDIAN
  27 #else
  28 #define BIG_ENDIAN
  29 #endif
  30
  31 // this is set in the makefile
  32 // #define PCI                  /* only PCI adapters supported by this driver */
  33 // #define MEM_MAPPED_IO        /* use memory mapped I/O */
  34
  35
  36 #define USE_CAN_ADDR            /* DA and SA in MAC header are canonical. */
  37
  38 #define MB_OUTSIDE_SMC          /* SMT Mbufs outside of smc struct. */
  39
  40 // -----------------------
  41
  42
  43 // SMT Definitions
  44 // -----------------------
  45 #define SYNC                    /* allow synchronous frames */
  46
  47 // #define SBA                  /* Synchronous Bandwidth Allocator support */
  48                                 /* not available as free source */
  49
  50 #define ESS                     /* SBA End Station Support */
  51
  52 #define SMT_PANIC(smc, nr, msg) printk(KERN_INFO "SMT PANIC: code: %d, msg: %s\n",nr,msg)
  53
  54
  55 #ifdef DEBUG
  56 #define printf(s,args...) printk(KERN_INFO s, ## args)
  57 #endif
  58
  59 // #define HW_PTR       u_long
  60 // -----------------------
  61
  62
  63
  64 // HWM and OS-specific buffer definitions
  65 // -----------------------
  66
  67 // default number of receive buffers.
  68 #define NUM_RECEIVE_BUFFERS             10
  69
  70 // default number of transmit buffers.
  71 #define NUM_TRANSMIT_BUFFERS            10
  72
  73 // Number of SMT buffers (Mbufs).
  74 #define NUM_SMT_BUF     4
  75
  76 // Number of TXDs for asynchronous transmit queue.
  77 #define HWM_ASYNC_TXD_COUNT     (NUM_TRANSMIT_BUFFERS + NUM_SMT_BUF)
  78
  79 // Number of TXDs for synchronous transmit queue.
  80 #define HWM_SYNC_TXD_COUNT      HWM_ASYNC_TXD_COUNT
  81
  82
  83 // Number of RXDs for receive queue #1.
  84 // Note: Workaround for ASIC Errata #7: One extra RXD is required.
  85 #if (NUM_RECEIVE_BUFFERS > 100)
  86 #define SMT_R1_RXD_COUNT        (1 + 100)
  87 #else
  88 #define SMT_R1_RXD_COUNT        (1 + NUM_RECEIVE_BUFFERS)
  89 #endif
  90
  91 // Number of RXDs for receive queue #2.
  92 #define SMT_R2_RXD_COUNT        0       // Not used.
  93 // -----------------------
  94
  95
  96
  97 /*
  98  * OS-specific part of the transmit/receive descriptor structure (TXD/RXD).
  99  *
 100  * Note: The size of these structures must follow this rule:
 101  *
 102  *      sizeof(struct) + 2*sizeof(void*) == n * 16, n >= 1
 103  *
 104  * We use the dma_addr fields under Linux to keep track of the
 105  * DMA address of the packet data, for later pci_unmap_single. -DaveM
 106  */
 107
 108 struct s_txd_os {       // os-specific part of transmit descriptor
 109         struct sk_buff *skb;
 110         dma_addr_t dma_addr;
 111 } ;
 112
 113 struct s_rxd_os {       // os-specific part of receive descriptor
 114         struct sk_buff *skb;
 115         dma_addr_t dma_addr;
 116 } ;
 117
 118
 119 /*
 120  * So we do not need to make too many modifications to the generic driver
 121  * parts, we take advantage of the AIX byte swapping macro interface.
 122  */
 123
 124 #define AIX_REVERSE(x)          ((u32)le32_to_cpu((u32)(x)))
 125 #define MDR_REVERSE(x)          ((u32)le32_to_cpu((u32)(x)))