drivers/staging/et131x/et131x_adapter.h

   1 /*
   2  * Agere Systems Inc.
   3  * 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs
   4  *
   5  * Copyright © 2005 Agere Systems Inc.
   6  * All rights reserved.
   7  *   http://www.agere.com
   8  *
   9  *------------------------------------------------------------------------------
  10  *
  11  * et131x_adapter.h - Header which includes the private adapter structure, along
  12  *                    with related support structures, macros, definitions, etc.
  13  *
  14  *------------------------------------------------------------------------------
  15  *
  16  * SOFTWARE LICENSE
  17  *
  18  * This software is provided subject to the following terms and conditions,
  19  * which you should read carefully before using the software.  Using this
  20  * software indicates your acceptance of these terms and conditions.  If you do
  21  * not agree with these terms and conditions, do not use the software.
  22  *
  23  * Copyright © 2005 Agere Systems Inc.
  24  * All rights reserved.
  25  *
  26  * Redistribution and use in source or binary forms, with or without
  27  * modifications, are permitted provided that the following conditions are met:
  28  *
  29  * . Redistributions of source code must retain the above copyright notice, this
  30  *    list of conditions and the following Disclaimer as comments in the code as
  31  *    well as in the documentation and/or other materials provided with the
  32  *    distribution.
  33  *
  34  * . Redistributions in binary form must reproduce the above copyright notice,
  35  *    this list of conditions and the following Disclaimer in the documentation
  36  *    and/or other materials provided with the distribution.
  37  *
  38  * . Neither the name of Agere Systems Inc. nor the names of the contributors
  39  *    may be used to endorse or promote products derived from this software
  40  *    without specific prior written permission.
  41  *
  42  * Disclaimer
  43  *
  44  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  45  * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
  46  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  ANY
  47  * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
  48  * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
  49  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  50  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  51  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  52  * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
  53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  54  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  55  * DAMAGE.
  56  *
  57  */
  58
  59 #ifndef __ET131X_ADAPTER_H__
  60 #define __ET131X_ADAPTER_H__
  61
  62 #include "et1310_address_map.h"
  63 #include "et1310_tx.h"
  64 #include "et1310_rx.h"
  65
  66 /*
  67  * Do not change these values: if changed, then change also in respective
  68  * TXdma and Rxdma engines
  69  */
  70 #define NUM_DESC_PER_RING_TX         512        /* TX Do not change these values */
  71 #define NUM_TCB                      64
  72
  73 /*
  74  * These values are all superseded by registry entries to facilitate tuning.
  75  * Once the desired performance has been achieved, the optimal registry values
  76  * should be re-populated to these #defines:
  77  */
  78 #define NUM_TRAFFIC_CLASSES          1
  79
  80 /*
  81  * There are three ways of counting errors - if there are more than X errors
  82  * in Y packets (represented by the "SAMPLE" macros), if there are more than
  83  * N errors in a S mSec time period (the "PERIOD" macros), or if there are
  84  * consecutive packets with errors (CONSEC_ERRORED_THRESH).  This last covers
  85  * for "Bursty" errors, and the errored packets may well not be contiguous,
  86  * but several errors where the packet counter has changed by less than a
  87  * small amount will cause this count to increment.
  88  */
  89 #define TX_PACKETS_IN_SAMPLE        10000
  90 #define TX_MAX_ERRORS_IN_SAMPLE     50
  91
  92 #define TX_ERROR_PERIOD             1000
  93 #define TX_MAX_ERRORS_IN_PERIOD     10
  94
  95 #define LINK_DETECTION_TIMER        5000
  96
  97 #define TX_CONSEC_RANGE             5
  98 #define TX_CONSEC_ERRORED_THRESH    10
  99
 100 #define LO_MARK_PERCENT_FOR_PSR     15
 101 #define LO_MARK_PERCENT_FOR_RX      15
 102
 103 /* Macros specific to the private adapter structure */
 104 #define MP_TCB_RESOURCES_AVAILABLE(_M) ((_M)->TxRing.nBusySend < NUM_TCB)
 105 #define MP_TCB_RESOURCES_NOT_AVAILABLE(_M) ((_M)->TxRing.nBusySend >= NUM_TCB)
 106
 107 #define MP_SHOULD_FAIL_SEND(_M)   ((_M)->Flags & fMP_ADAPTER_FAIL_SEND_MASK)
 108
 109 /* Counters for error rate monitoring */
 110 typedef struct _MP_ERR_COUNTERS {
 111         u32 PktCountTxPackets;
 112         u32 PktCountTxErrors;
 113         u32 TimerBasedTxErrors;
 114         u32 PktCountLastError;
 115         u32 ErredConsecPackets;
 116 } MP_ERR_COUNTERS, *PMP_ERR_COUNTERS;
 117
 118 /* RFD (Receive Frame Descriptor) */
 119 typedef struct _MP_RFD {
 120         struct list_head list_node;
 121         struct sk_buff *Packet;
 122         u32 PacketSize; /* total size of receive frame */
 123         u16 bufferindex;
 124         u8 ringindex;
 125 } MP_RFD, *PMP_RFD;
 126
 127 /* Enum for Flow Control */
 128 typedef enum _eflow_control_t {
 129         Both = 0,
 130         TxOnly = 1,
 131         RxOnly = 2,
 132         None = 3
 133 } eFLOW_CONTROL_t, *PeFLOW_CONTROL_t;
 134
 135 /* Struct to define some device statistics */
 136 typedef struct _ce_stats_t {
 137         /* Link Input/Output stats */
 138         uint64_t ipackets;      /* # of in packets */
 139         uint64_t opackets;      /* # of out packets */
 140
 141         /* MIB II variables
 142          *
 143          * NOTE: atomic_t types are only guaranteed to store 24-bits; if we
 144          * MUST have 32, then we'll need another way to perform atomic
 145          * operations
 146          */
 147         u32 unircv;     /* # multicast packets received */
 148         atomic_t unixmt;        /* # multicast packets for Tx */
 149         u32 multircv;   /* # multicast packets received */
 150         atomic_t multixmt;      /* # multicast packets for Tx */
 151         u32 brdcstrcv;  /* # broadcast packets received */
 152         atomic_t brdcstxmt;     /* # broadcast packets for Tx */
 153         u32 norcvbuf;   /* # Rx packets discarded */
 154         u32 noxmtbuf;   /* # Tx packets discarded */
 155
 156         /* Transciever state informations. */
 157         u8 xcvr_addr;
 158         u32 xcvr_id;
 159
 160         /* Tx Statistics. */
 161         u32 tx_uflo;            /* Tx Underruns */
 162
 163         u32 collisions;
 164         u32 excessive_collisions;
 165         u32 first_collision;
 166         u32 late_collisions;
 167         u32 max_pkt_error;
 168         u32 tx_deferred;
 169
 170         /* Rx Statistics. */
 171         u32 rx_ov_flow; /* Rx Over Flow */
 172
 173         u32 length_err;
 174         u32 alignment_err;
 175         u32 crc_err;
 176         u32 code_violations;
 177         u32 other_errors;
 178
 179         u32 SynchrounousIterations;
 180         u32 InterruptStatus;
 181 } CE_STATS_t, *PCE_STATS_t;
 182
 183 /* The private adapter structure */
 184 struct et131x_adapter {
 185         struct net_device *netdev;
 186         struct pci_dev *pdev;
 187
 188         struct work_struct task;
 189
 190         /* Flags that indicate current state of the adapter */
 191         u32 Flags;
 192         u32 HwErrCount;
 193
 194         /* Configuration  */
 195         u8 PermanentAddress[ETH_ALEN];
 196         u8 CurrentAddress[ETH_ALEN];
 197         bool has_eeprom;
 198         u8 eepromData[2];
 199
 200         /* Spinlocks */
 201         spinlock_t Lock;
 202
 203         spinlock_t TCBSendQLock;
 204         spinlock_t TCBReadyQLock;
 205         spinlock_t SendHWLock;
 206         spinlock_t SendWaitLock;
 207
 208         spinlock_t RcvLock;
 209         spinlock_t RcvPendLock;
 210         spinlock_t FbrLock;
 211
 212         spinlock_t PHYLock;
 213
 214         /* Packet Filter and look ahead size */
 215         u32 PacketFilter;
 216         u32 linkspeed;
 217         u32 duplex_mode;
 218
 219         /* multicast list */
 220         u32 MCAddressCount;
 221         u8 MCList[NIC_MAX_MCAST_LIST][ETH_ALEN];
 222
 223         /* MAC test */
 224         TXMAC_TXTEST_t TxMacTest;
 225
 226         /* Pointer to the device's PCI register space */
 227         ADDRESS_MAP_t __iomem *regs;
 228
 229         /* Registry parameters */
 230         u8 SpeedDuplex;         /* speed/duplex */
 231         eFLOW_CONTROL_t RegistryFlowControl;    /* for 802.3x flow control */
 232         u8 RegistryPhyComa;     /* Phy Coma mode enable/disable */
 233
 234         u32 RegistryRxMemEnd;   /* Size of internal rx memory */
 235         u32 RegistryJumboPacket;        /* Max supported ethernet packet size */
 236
 237
 238         /* Derived from the registry: */
 239         u8 AiForceDpx;          /* duplex setting */
 240         u16 AiForceSpeed;               /* 'Speed', user over-ride of line speed */
 241         eFLOW_CONTROL_t FlowControl;    /* flow control validated by the far-end */
 242         enum {
 243                 NETIF_STATUS_INVALID = 0,
 244                 NETIF_STATUS_MEDIA_CONNECT,
 245                 NETIF_STATUS_MEDIA_DISCONNECT,
 246                 NETIF_STATUS_MAX
 247         } MediaState;
 248
 249         /* Minimize init-time */
 250         struct timer_list ErrorTimer;
 251         MP_POWER_MGMT PoMgmt;
 252         u32 CachedMaskValue;
 253
 254         /* Xcvr status at last poll */
 255         MI_BMSR_t Bmsr;
 256
 257         /* Tx Memory Variables */
 258         TX_RING_t TxRing;
 259
 260         /* Rx Memory Variables */
 261         RX_RING_t RxRing;
 262
 263         /* Loopback specifics */
 264         u8 ReplicaPhyLoopbk;    /* Replica Enable */
 265         u8 ReplicaPhyLoopbkPF;  /* Replica Enable Pass/Fail */
 266
 267         /* Stats */
 268         CE_STATS_t Stats;
 269
 270         struct net_device_stats net_stats;
 271         struct net_device_stats net_stats_prev;
 272 };
 273
 274 #endif /* __ET131X_ADAPTER_H__ */