drivers/message/i2o/i2o_lan.h

   1 /*
   2  *      i2o_lan.h                       I2O LAN Class definitions
   3  *
   4  *      I2O LAN CLASS OSM               May 26th 2000
   5  *
   6  *      (C) Copyright 1999, 2000        University of Helsinki,
   7  *                                      Department of Computer Science
   8  *
   9  *      This code is still under development / test.
  10  *
  11  *      Author:         Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
  12  *                      Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI>
  13  *                      Taneli Vähäkangas <Taneli.Vahakangas@cs.Helsinki.FI>
  14  */
  15
  16 #ifndef _I2O_LAN_H
  17 #define _I2O_LAN_H
  18
  19 /* Default values for tunable parameters first */
  20
  21 #define I2O_LAN_MAX_BUCKETS_OUT 96
  22 #define I2O_LAN_BUCKET_THRESH   18      /* 9 buckets in one message */
  23 #define I2O_LAN_RX_COPYBREAK    200
  24 #define I2O_LAN_TX_TIMEOUT      (1*HZ)
  25 #define I2O_LAN_TX_BATCH_MODE   2       /* 2=automatic, 1=on, 0=off */
  26 #define I2O_LAN_EVENT_MASK      0       /* 0=None, 0xFFC00002=All */
  27
  28 /* LAN types */
  29 #define I2O_LAN_ETHERNET        0x0030
  30 #define I2O_LAN_100VG           0x0040
  31 #define I2O_LAN_TR              0x0050
  32 #define I2O_LAN_FDDI            0x0060
  33 #define I2O_LAN_FIBRE_CHANNEL   0x0070
  34 #define I2O_LAN_UNKNOWN         0x00000000
  35
  36 /* Connector types */
  37
  38 /* Ethernet */
  39 #define I2O_LAN_AUI             (I2O_LAN_ETHERNET << 4) + 0x00000001
  40 #define I2O_LAN_10BASE5         (I2O_LAN_ETHERNET << 4) + 0x00000002
  41 #define I2O_LAN_FIORL           (I2O_LAN_ETHERNET << 4) + 0x00000003
  42 #define I2O_LAN_10BASE2         (I2O_LAN_ETHERNET << 4) + 0x00000004
  43 #define I2O_LAN_10BROAD36       (I2O_LAN_ETHERNET << 4) + 0x00000005
  44 #define I2O_LAN_10BASE_T        (I2O_LAN_ETHERNET << 4) + 0x00000006
  45 #define I2O_LAN_10BASE_FP       (I2O_LAN_ETHERNET << 4) + 0x00000007
  46 #define I2O_LAN_10BASE_FB       (I2O_LAN_ETHERNET << 4) + 0x00000008
  47 #define I2O_LAN_10BASE_FL       (I2O_LAN_ETHERNET << 4) + 0x00000009
  48 #define I2O_LAN_100BASE_TX      (I2O_LAN_ETHERNET << 4) + 0x0000000A
  49 #define I2O_LAN_100BASE_FX      (I2O_LAN_ETHERNET << 4) + 0x0000000B
  50 #define I2O_LAN_100BASE_T4      (I2O_LAN_ETHERNET << 4) + 0x0000000C
  51 #define I2O_LAN_1000BASE_SX     (I2O_LAN_ETHERNET << 4) + 0x0000000D
  52 #define I2O_LAN_1000BASE_LX     (I2O_LAN_ETHERNET << 4) + 0x0000000E
  53 #define I2O_LAN_1000BASE_CX     (I2O_LAN_ETHERNET << 4) + 0x0000000F
  54 #define I2O_LAN_1000BASE_T      (I2O_LAN_ETHERNET << 4) + 0x00000010
  55
  56 /* AnyLAN */
  57 #define I2O_LAN_100VG_ETHERNET  (I2O_LAN_100VG << 4) + 0x00000001
  58 #define I2O_LAN_100VG_TR        (I2O_LAN_100VG << 4) + 0x00000002
  59
  60 /* Token Ring */
  61 #define I2O_LAN_4MBIT           (I2O_LAN_TR << 4) + 0x00000001
  62 #define I2O_LAN_16MBIT          (I2O_LAN_TR << 4) + 0x00000002
  63
  64 /* FDDI */
  65 #define I2O_LAN_125MBAUD        (I2O_LAN_FDDI << 4) + 0x00000001
  66
  67 /* Fibre Channel */
  68 #define I2O_LAN_POINT_POINT     (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000001
  69 #define I2O_LAN_ARB_LOOP        (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000002
  70 #define I2O_LAN_PUBLIC_LOOP     (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000003
  71 #define I2O_LAN_FABRIC          (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000004
  72
  73 #define I2O_LAN_EMULATION       0x00000F00
  74 #define I2O_LAN_OTHER           0x00000F01
  75 #define I2O_LAN_DEFAULT         0xFFFFFFFF
  76
  77 /* LAN class functions */
  78
  79 #define LAN_PACKET_SEND         0x3B
  80 #define LAN_SDU_SEND            0x3D
  81 #define LAN_RECEIVE_POST        0x3E
  82 #define LAN_RESET               0x35
  83 #define LAN_SUSPEND             0x37
  84
  85 /* LAN DetailedStatusCode defines */
  86 #define I2O_LAN_DSC_SUCCESS                     0x00
  87 #define I2O_LAN_DSC_DEVICE_FAILURE              0x01
  88 #define I2O_LAN_DSC_DESTINATION_NOT_FOUND       0x02
  89 #define I2O_LAN_DSC_TRANSMIT_ERROR              0x03
  90 #define I2O_LAN_DSC_TRANSMIT_ABORTED            0x04
  91 #define I2O_LAN_DSC_RECEIVE_ERROR               0x05
  92 #define I2O_LAN_DSC_RECEIVE_ABORTED             0x06
  93 #define I2O_LAN_DSC_DMA_ERROR                   0x07
  94 #define I2O_LAN_DSC_BAD_PACKET_DETECTED         0x08
  95 #define I2O_LAN_DSC_OUT_OF_MEMORY               0x09
  96 #define I2O_LAN_DSC_BUCKET_OVERRUN              0x0A
  97 #define I2O_LAN_DSC_IOP_INTERNAL_ERROR          0x0B
  98 #define I2O_LAN_DSC_CANCELED                    0x0C
  99 #define I2O_LAN_DSC_INVALID_TRANSACTION_CONTEXT 0x0D
 100 #define I2O_LAN_DSC_DEST_ADDRESS_DETECTED       0x0E
 101 #define I2O_LAN_DSC_DEST_ADDRESS_OMITTED        0x0F
 102 #define I2O_LAN_DSC_PARTIAL_PACKET_RETURNED     0x10
 103 #define I2O_LAN_DSC_SUSPENDED                   0x11
 104
 105 struct i2o_packet_info {
 106         u32 offset : 24;
 107         u32 flags  : 8;
 108         u32 len    : 24;
 109         u32 status : 8;
 110 };
 111
 112 struct i2o_bucket_descriptor {
 113         u32 context;                    /* FIXME: 64bit support */
 114         struct i2o_packet_info packet_info[1];
 115 };
 116
 117 /* Event Indicator Mask Flags for LAN OSM */
 118
 119 #define I2O_LAN_EVT_LINK_DOWN           0x01
 120 #define I2O_LAN_EVT_LINK_UP             0x02
 121 #define I2O_LAN_EVT_MEDIA_CHANGE        0x04
 122
 123 #include <linux/netdevice.h>
 124 #include <linux/fddidevice.h>
 125
 126 struct i2o_lan_local {
 127         u8 unit;
 128         struct i2o_device *i2o_dev;
 129
 130         struct fddi_statistics stats;   /* see also struct net_device_stats */
 131         unsigned short (*type_trans)(struct sk_buff *, struct net_device *);
 132         atomic_t buckets_out;           /* nbr of unused buckets on DDM */
 133         atomic_t tx_out;                /* outstanding TXes */
 134         u8 tx_count;                    /* packets in one TX message frame */
 135         u16 tx_max_out;                 /* DDM's Tx queue len */
 136         u8 sgl_max;                     /* max SGLs in one message frame */
 137         u32 m;                          /* IOP address of the batch msg frame */
 138
 139         struct work_struct i2o_batch_send_task;
 140         int send_active;
 141         struct sk_buff **i2o_fbl;       /* Free bucket list (to reuse skbs) */
 142         int i2o_fbl_tail;
 143         spinlock_t fbl_lock;
 144
 145         spinlock_t tx_lock;
 146
 147         u32 max_size_mc_table;          /* max number of multicast addresses */
 148
 149         /* LAN OSM configurable parameters are here: */
 150
 151         u16 max_buckets_out;            /* max nbr of buckets to send to DDM */
 152         u16 bucket_thresh;              /* send more when this many used */
 153         u16 rx_copybreak;
 154
 155         u8  tx_batch_mode;              /* Set when using batch mode sends */
 156         u32 i2o_event_mask;             /* To turn on interesting event flags */
 157 };
 158
 159 #endif /* _I2O_LAN_H */