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+/******************************************************************************
+ *
+ * Name: skrlmt.h
+ * Project: GEnesis, PCI Gigabit Ethernet Adapter
+ * Version: $Revision: 1.35 $
+ * Date: $Date: 2003/01/31 14:12:41 $
+ * Purpose: Header file for Redundant Link ManagemenT.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * (C)Copyright 1998-2001 SysKonnect GmbH.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The information in this file is provided "AS IS" without warranty.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * History:
+ *
+ * $Log: skrlmt.h,v $
+ * Revision 1.35 2003/01/31 14:12:41 mkunz
+ * single port adapter runs now with two identical MAC addresses
+ *
+ * Revision 1.34 2002/09/23 15:13:41 rwahl
+ * Editorial changes.
+ *
+ * Revision 1.33 2001/07/03 12:16:48 mkunz
+ * New Flag ChgBcPrio (Change priority of last broadcast received)
+ *
+ * Revision 1.32 2001/02/14 14:06:31 rassmann
+ * Editorial changes.
+ *
+ * Revision 1.31 2001/02/05 14:25:26 rassmann
+ * Prepared RLMT for transparent operation.
+ *
+ * Revision 1.30 2001/01/22 13:41:39 rassmann
+ * Supporting two nets on dual-port adapters.
+ *
+ * Revision 1.29 2000/11/17 08:58:00 rassmann
+ * Moved CheckSwitch from SK_RLMT_PACKET_RECEIVED to SK_RLMT_TIM event.
+ *
+ * Revision 1.28 2000/11/09 12:24:34 rassmann
+ * Editorial changes.
+ *
+ * Revision 1.27 1999/11/22 13:59:56 cgoos
+ * Changed license header to GPL.
+ *
+ * Revision 1.26 1999/10/04 14:01:19 rassmann
+ * Corrected reaction to reception of BPDU frames (#10441).
+ *
+ * Revision 1.25 1999/07/20 12:53:39 rassmann
+ * Fixed documentation errors for lookahead macros.
+ *
+ * Revision 1.24 1999/05/28 11:15:56 rassmann
+ * Changed behaviour to reflect Design Spec v1.2.
+ * Controlling Link LED(s).
+ * Introduced RLMT Packet Version field in RLMT Packet.
+ * Newstyle lookahead macros (checking meta-information before looking at
+ * the packet).
+ *
+ * Revision 1.23 1999/01/28 12:50:42 rassmann
+ * Not using broadcast time stamps in CheckLinkState mode.
+ *
+ * Revision 1.22 1999/01/27 14:13:04 rassmann
+ * Monitoring broadcast traffic.
+ * Switching more reliably and not too early if switch is
+ * configured for spanning tree.
+ *
+ * Revision 1.21 1998/12/08 13:11:25 rassmann
+ * Stopping SegTimer at RlmtStop.
+ *
+ * Revision 1.20 1998/11/24 12:37:33 rassmann
+ * Implemented segmentation check.
+ *
+ * Revision 1.19 1998/11/17 13:43:06 rassmann
+ * Handling (logical) tx failure.
+ * Sending packet on logical address after PORT_SWITCH.
+ *
+ * Revision 1.18 1998/11/13 16:56:56 rassmann
+ * Added macro version of SkRlmtLookaheadPacket.
+ *
+ * Revision 1.17 1998/11/06 18:06:05 rassmann
+ * Corrected timing when RLMT checks fail.
+ * Clearing tx counter earlier in periodical checks.
+ *
+ * Revision 1.16 1998/11/03 13:53:50 rassmann
+ * RLMT should switch now (at least in mode 3).
+ *
+ * Revision 1.15 1998/10/22 11:39:52 rassmann
+ * Corrected signed/unsigned mismatches.
+ * Corrected receive list handling and address recognition.
+ *
+ * Revision 1.14 1998/10/15 15:16:36 rassmann
+ * Finished Spanning Tree checking.
+ * Checked with lint.
+ *
+ * Revision 1.13 1998/09/24 19:16:08 rassmann
+ * Code cleanup.
+ * Introduced Timer for PORT_DOWN due to no RX.
+ *
+ * Revision 1.12 1998/09/16 11:09:52 rassmann
+ * Syntax corrections.
+ *
+ * Revision 1.11 1998/09/15 11:28:50 rassmann
+ * Syntax corrections.
+ *
+ * Revision 1.10 1998/09/14 17:07:38 rassmann
+ * Added code for port checking via LAN.
+ * Changed Mbuf definition.
+ *
+ * Revision 1.9 1998/09/07 11:14:15 rassmann
+ * Syntax corrections.
+ *
+ * Revision 1.8 1998/09/07 09:06:08 rassmann
+ * Syntax corrections.
+ *
+ * Revision 1.7 1998/09/04 19:41:34 rassmann
+ * Syntax corrections.
+ * Started entering code for checking local links.
+ *
+ * Revision 1.6 1998/09/04 12:14:28 rassmann
+ * Interface cleanup.
+ *
+ * Revision 1.5 1998/09/02 16:55:29 rassmann
+ * Updated to reflect new DRV/HWAC/RLMT interface.
+ *
+ * Revision 1.4 1998/09/02 07:26:02 afischer
+ * typedef for SK_RLMT_PORT
+ *
+ * Revision 1.3 1998/08/27 14:29:03 rassmann
+ * Code cleanup.
+ *
+ * Revision 1.2 1998/08/27 14:26:25 rassmann
+ * Updated interface.
+ *
+ * Revision 1.1 1998/08/21 08:29:10 rassmann
+ * First public version.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * Description:
+ *
+ * This is the header file for Redundant Link ManagemenT.
+ *
+ * Include File Hierarchy:
+ *
+ * "skdrv1st.h"
+ * ...
+ * "sktypes.h"
+ * "skqueue.h"
+ * "skaddr.h"
+ * "skrlmt.h"
+ * ...
+ * "skdrv2nd.h"
+ *
+ ******************************************************************************/
+
+#ifndef __INC_SKRLMT_H
+#define __INC_SKRLMT_H
+
+#ifdef __cplusplus
+#error C++ is not yet supported.
+extern "C" {
+#endif /* cplusplus */
+
+/* defines ********************************************************************/
+
+#define SK_RLMT_NET_DOWN_TEMP 1 /* NET_DOWN due to last port down. */
+#define SK_RLMT_NET_DOWN_FINAL 2 /* NET_DOWN due to RLMT_STOP. */
+
+/* ----- Default queue sizes - must be multiples of 8 KB ----- */
+
+/* Less than 8 KB free in RX queue => pause frames. */
+#define SK_RLMT_STANDBY_QRXSIZE 128 /* Size of rx standby queue in KB. */
+#define SK_RLMT_STANDBY_QXASIZE 32 /* Size of async standby queue in KB. */
+#define SK_RLMT_STANDBY_QXSSIZE 0 /* Size of sync standby queue in KB. */
+
+#define SK_RLMT_MAX_TX_BUF_SIZE 60 /* Maximum RLMT transmit size. */
+
+/* ----- PORT states ----- */
+
+#define SK_RLMT_PS_INIT 0 /* Port state: Init. */
+#define SK_RLMT_PS_LINK_DOWN 1 /* Port state: Link down. */
+#define SK_RLMT_PS_DOWN 2 /* Port state: Port down. */
+#define SK_RLMT_PS_GOING_UP 3 /* Port state: Going up. */
+#define SK_RLMT_PS_UP 4 /* Port state: Up. */
+
+/* ----- RLMT states ----- */
+
+#define SK_RLMT_RS_INIT 0 /* RLMT state: Init. */
+#define SK_RLMT_RS_NET_DOWN 1 /* RLMT state: Net down. */
+#define SK_RLMT_RS_NET_UP 2 /* RLMT state: Net up. */
+
+/* ----- PORT events ----- */
+
+#define SK_RLMT_LINK_UP 1001 /* Link came up. */
+#define SK_RLMT_LINK_DOWN 1002 /* Link went down. */
+#define SK_RLMT_PORT_ADDR 1003 /* Port address changed. */
+
+/* ----- RLMT events ----- */
+
+#define SK_RLMT_START 2001 /* Start RLMT. */
+#define SK_RLMT_STOP 2002 /* Stop RLMT. */
+#define SK_RLMT_PACKET_RECEIVED 2003 /* Packet was received for RLMT. */
+#define SK_RLMT_STATS_CLEAR 2004 /* Clear statistics. */
+#define SK_RLMT_STATS_UPDATE 2005 /* Update statistics. */
+#define SK_RLMT_PREFPORT_CHANGE 2006 /* Change preferred port. */
+#define SK_RLMT_MODE_CHANGE 2007 /* New RlmtMode. */
+#define SK_RLMT_SET_NETS 2008 /* Number of Nets (1 or 2). */
+
+/* ----- RLMT mode bits ----- */
+
+/*
+ * CAUTION: These defines are private to RLMT.
+ * Please use the RLMT mode defines below.
+ */
+
+#define SK_RLMT_CHECK_LINK 1 /* Check Link. */
+#define SK_RLMT_CHECK_LOC_LINK 2 /* Check other link on same adapter. */
+#define SK_RLMT_CHECK_SEG 4 /* Check segmentation. */
+
+#ifndef RLMT_CHECK_REMOTE
+#define SK_RLMT_CHECK_OTHERS SK_RLMT_CHECK_LOC_LINK
+#else /* RLMT_CHECK_REMOTE */
+#define SK_RLMT_CHECK_REM_LINK 8 /* Check link(s) on other adapter(s). */
+#define SK_RLMT_MAX_REMOTE_PORTS_CHECKED 3
+#define SK_RLMT_CHECK_OTHERS \
+ (SK_RLMT_CHECK_LOC_LINK | SK_RLMT_CHECK_REM_LINK)
+#endif /* RLMT_CHECK_REMOTE */
+
+#ifndef SK_RLMT_ENABLE_TRANSPARENT
+#define SK_RLMT_TRANSPARENT 0 /* RLMT transparent - inactive. */
+#else /* SK_RLMT_ENABLE_TRANSPARENT */
+#define SK_RLMT_TRANSPARENT 128 /* RLMT transparent. */
+#endif /* SK_RLMT_ENABLE_TRANSPARENT */
+
+/* ----- RLMT modes ----- */
+
+/* Check Link State. */
+#define SK_RLMT_MODE_CLS (SK_RLMT_CHECK_LINK)
+
+/* Check Local Ports: check other links on the same adapter. */
+#define SK_RLMT_MODE_CLP (SK_RLMT_CHECK_LINK | SK_RLMT_CHECK_LOC_LINK)
+
+/* Check Local Ports and Segmentation Status. */
+#define SK_RLMT_MODE_CLPSS \
+ (SK_RLMT_CHECK_LINK | SK_RLMT_CHECK_LOC_LINK | SK_RLMT_CHECK_SEG)
+
+#ifdef RLMT_CHECK_REMOTE
+/* Check Local and Remote Ports: check links (local or remote). */
+ Name of define TBD!
+#define SK_RLMT_MODE_CRP \
+ (SK_RLMT_CHECK_LINK | SK_RLMT_CHECK_LOC_LINK | SK_RLMT_CHECK_REM_LINK)
+
+/* Check Local and Remote Ports and Segmentation Status. */
+ Name of define TBD!
+#define SK_RLMT_MODE_CRPSS \
+ (SK_RLMT_CHECK_LINK | SK_RLMT_CHECK_LOC_LINK | \
+ SK_RLMT_CHECK_REM_LINK | SK_RLMT_CHECK_SEG)
+#endif /* RLMT_CHECK_REMOTE */
+
+/* ----- RLMT lookahead result bits ----- */
+
+#define SK_RLMT_RX_RLMT 1 /* Give packet to RLMT. */
+#define SK_RLMT_RX_PROTOCOL 2 /* Give packet to protocol. */
+
+/* Macros */
+
+#if 0
+SK_AC *pAC /* adapter context */
+SK_U32 PortNum /* receiving port */
+unsigned PktLen /* received packet's length */
+SK_BOOL IsBc /* Flag: packet is broadcast */
+unsigned *pOffset /* offs. of bytes to present to SK_RLMT_LOOKAHEAD */
+unsigned *pNumBytes /* #Bytes to present to SK_RLMT_LOOKAHEAD */
+#endif /* 0 */
+
+#define SK_RLMT_PRE_LOOKAHEAD(pAC,PortNum,PktLen,IsBc,pOffset,pNumBytes) { \
+ SK_AC *_pAC; \
+ SK_U32 _PortNum; \
+ _pAC = (pAC); \
+ _PortNum = (SK_U32)(PortNum); \
+ /* _pAC->Rlmt.Port[_PortNum].PacketsRx++; */ \
+ _pAC->Rlmt.Port[_PortNum].PacketsPerTimeSlot++; \
+ if (_pAC->Rlmt.RlmtOff) { \
+ *(pNumBytes) = 0; \
+ } \
+ else {\
+ if ((_pAC->Rlmt.Port[_PortNum].Net->RlmtMode & SK_RLMT_TRANSPARENT) != 0) { \
+ *(pNumBytes) = 0; \
+ } \
+ else if (IsBc) { \
+ if (_pAC->Rlmt.Port[_PortNum].Net->RlmtMode != SK_RLMT_MODE_CLS) { \
+ *(pNumBytes) = 6; \
+ *(pOffset) = 6; \
+ } \
+ else { \
+ *(pNumBytes) = 0; \
+ } \
+ } \
+ else { \
+ if ((PktLen) > SK_RLMT_MAX_TX_BUF_SIZE) { \
+ /* _pAC->Rlmt.Port[_PortNum].DataPacketsPerTimeSlot++; */ \
+ *(pNumBytes) = 0; \
+ } \
+ else { \
+ *(pNumBytes) = 6; \
+ *(pOffset) = 0; \
+ } \
+ } \
+ } \
+}
+
+#if 0
+SK_AC *pAC /* adapter context */
+SK_U32 PortNum /* receiving port */
+SK_U8 *pLaPacket, /* received packet's data (points to pOffset) */
+SK_BOOL IsBc /* Flag: packet is broadcast */
+SK_BOOL IsMc /* Flag: packet is multicast */
+unsigned *pForRlmt /* Result: bits SK_RLMT_RX_RLMT, SK_RLMT_RX_PROTOCOL */
+SK_RLMT_LOOKAHEAD() expects *pNumBytes from
+packet offset *pOffset (s.a.) at *pLaPacket.
+
+If you use SK_RLMT_LOOKAHEAD in a path where you already know if the packet is
+BC, MC, or UC, you should use constants for IsBc and IsMc, so that your compiler
+can trash unneeded parts of the if construction.
+#endif /* 0 */
+
+#define SK_RLMT_LOOKAHEAD(pAC,PortNum,pLaPacket,IsBc,IsMc,pForRlmt) { \
+ SK_AC *_pAC; \
+ SK_U32 _PortNum; \
+ SK_U8 *_pLaPacket; \
+ _pAC = (pAC); \
+ _PortNum = (SK_U32)(PortNum); \
+ _pLaPacket = (SK_U8 *)(pLaPacket); \
+ if (IsBc) {\
+ if (!SK_ADDR_EQUAL(_pLaPacket, _pAC->Addr.Net[_pAC->Rlmt.Port[ \
+ _PortNum].Net->NetNumber].CurrentMacAddress.a)) { \
+ _pAC->Rlmt.Port[_PortNum].BcTimeStamp = SkOsGetTime(_pAC); \
+ _pAC->Rlmt.CheckSwitch = SK_TRUE; \
+ } \
+ /* _pAC->Rlmt.Port[_PortNum].DataPacketsPerTimeSlot++; */ \
+ *(pForRlmt) = SK_RLMT_RX_PROTOCOL; \
+ } \
+ else if (IsMc) { \
+ if (SK_ADDR_EQUAL(_pLaPacket, BridgeMcAddr.a)) { \
+ _pAC->Rlmt.Port[_PortNum].BpduPacketsPerTimeSlot++; \
+ if (_pAC->Rlmt.Port[_PortNum].Net->RlmtMode & SK_RLMT_CHECK_SEG) { \
+ *(pForRlmt) = SK_RLMT_RX_RLMT | SK_RLMT_RX_PROTOCOL; \
+ } \
+ else { \
+ *(pForRlmt) = SK_RLMT_RX_PROTOCOL; \
+ } \
+ } \
+ else if (SK_ADDR_EQUAL(_pLaPacket, SkRlmtMcAddr.a)) { \
+ *(pForRlmt) = SK_RLMT_RX_RLMT; \
+ } \
+ else { \
+ /* _pAC->Rlmt.Port[_PortNum].DataPacketsPerTimeSlot++; */ \
+ *(pForRlmt) = SK_RLMT_RX_PROTOCOL; \
+ } \
+ } \
+ else { \
+ if (SK_ADDR_EQUAL( \
+ _pLaPacket, \
+ _pAC->Addr.Port[_PortNum].CurrentMacAddress.a)) { \
+ *(pForRlmt) = SK_RLMT_RX_RLMT; \
+ } \
+ else { \
+ /* _pAC->Rlmt.Port[_PortNum].DataPacketsPerTimeSlot++; */ \
+ *(pForRlmt) = SK_RLMT_RX_PROTOCOL; \
+ } \
+ } \
+}
+
+#ifdef SK_RLMT_FAST_LOOKAHEAD
+Error: SK_RLMT_FAST_LOOKAHEAD no longer used. Use new macros for lookahead.
+#endif /* SK_RLMT_FAST_LOOKAHEAD */
+#ifdef SK_RLMT_SLOW_LOOKAHEAD
+Error: SK_RLMT_SLOW_LOOKAHEAD no longer used. Use new macros for lookahead.
+#endif /* SK_RLMT_SLOW_LOOKAHEAD */
+
+/* typedefs *******************************************************************/
+
+#ifdef SK_RLMT_MBUF_PRIVATE
+typedef struct s_RlmtMbuf {
+ some content
+} SK_RLMT_MBUF;
+#endif /* SK_RLMT_MBUF_PRIVATE */
+
+
+#ifdef SK_LA_INFO
+typedef struct s_Rlmt_PacketInfo {
+ unsigned PacketLength; /* Length of packet. */
+ unsigned PacketType; /* Directed/Multicast/Broadcast. */
+} SK_RLMT_PINFO;
+#endif /* SK_LA_INFO */
+
+
+typedef struct s_RootId {
+ SK_U8 Id[8]; /* Root Bridge Id. */
+} SK_RLMT_ROOT_ID;
+
+
+typedef struct s_port {
+ SK_MAC_ADDR CheckAddr;
+ SK_BOOL SuspectTx;
+} SK_PORT_CHECK;
+
+
+typedef struct s_RlmtNet SK_RLMT_NET;
+
+
+typedef struct s_RlmtPort {
+
+/* ----- Public part (read-only) ----- */
+
+ SK_U8 PortState; /* Current state of this port. */
+
+ /* For PNMI */
+ SK_BOOL LinkDown;
+ SK_BOOL PortDown;
+ SK_U8 Align01;
+
+ SK_U32 PortNumber; /* Number of port on adapter. */
+ SK_RLMT_NET * Net; /* Net port belongs to. */
+
+ SK_U64 TxHelloCts;
+ SK_U64 RxHelloCts;
+ SK_U64 TxSpHelloReqCts;
+ SK_U64 RxSpHelloCts;
+
+/* ----- Private part ----- */
+
+/* SK_U64 PacketsRx; */ /* Total packets received. */
+ SK_U32 PacketsPerTimeSlot; /* Packets rxed between TOs. */
+/* SK_U32 DataPacketsPerTimeSlot; */ /* Data packets ... */
+ SK_U32 BpduPacketsPerTimeSlot; /* BPDU packets rxed in TS. */
+ SK_U64 BcTimeStamp; /* Time of last BC receive. */
+ SK_U64 GuTimeStamp; /* Time of entering GOING_UP. */
+
+ SK_TIMER UpTimer; /* Timer struct Link/Port up. */
+ SK_TIMER DownRxTimer; /* Timer struct down rx. */
+ SK_TIMER DownTxTimer; /* Timer struct down tx. */
+
+ SK_U32 CheckingState; /* Checking State. */
+
+ SK_ADDR_PORT * AddrPort;
+
+ SK_U8 Random[4]; /* Random value. */
+ unsigned PortsChecked; /* #ports checked. */
+ unsigned PortsSuspect; /* #ports checked that are s. */
+ SK_PORT_CHECK PortCheck[1];
+/* SK_PORT_CHECK PortCheck[SK_MAX_MACS - 1]; */
+
+ SK_BOOL PortStarted; /* Port is started. */
+ SK_BOOL PortNoRx; /* NoRx for >= 1 time slot. */
+ SK_BOOL RootIdSet;
+ SK_RLMT_ROOT_ID Root; /* Root Bridge Id. */
+} SK_RLMT_PORT;
+
+
+struct s_RlmtNet {
+
+/* ----- Public part (read-only) ----- */
+
+ SK_U32 NetNumber; /* Number of net. */
+
+ SK_RLMT_PORT * Port[SK_MAX_MACS]; /* Ports that belong to this net. */
+ SK_U32 NumPorts; /* Number of ports. */
+ SK_U32 PrefPort; /* Preferred port. */
+
+ /* For PNMI */
+
+ SK_U32 ChgBcPrio; /* Change Priority of last broadcast received */
+ SK_U32 RlmtMode; /* Check ... */
+ SK_U32 ActivePort; /* Active port. */
+ SK_U32 Preference; /* 0xFFFFFFFF: Automatic. */
+
+ SK_U8 RlmtState; /* Current RLMT state. */
+
+/* ----- Private part ----- */
+ SK_BOOL RootIdSet;
+ SK_U16 Align01;
+
+ int LinksUp; /* #Links up. */
+ int PortsUp; /* #Ports up. */
+ SK_U32 TimeoutValue; /* RLMT timeout value. */
+
+ SK_U32 CheckingState; /* Checking State. */
+ SK_RLMT_ROOT_ID Root; /* Root Bridge Id. */
+
+ SK_TIMER LocTimer; /* Timer struct. */
+ SK_TIMER SegTimer; /* Timer struct. */
+};
+
+
+typedef struct s_Rlmt {
+
+/* ----- Public part (read-only) ----- */
+
+ SK_U32 NumNets; /* Number of nets. */
+ SK_U32 NetsStarted; /* Number of nets started. */
+ SK_RLMT_NET Net[SK_MAX_NETS]; /* Array of available nets. */
+ SK_RLMT_PORT Port[SK_MAX_MACS]; /* Array of available ports. */
+
+/* ----- Private part ----- */
+ SK_BOOL CheckSwitch;
+ SK_BOOL RlmtOff; /* set to zero if the Mac addresses
+ are equal or the second one
+ is zero */
+ SK_U16 Align01;
+
+} SK_RLMT;
+
+
+extern SK_MAC_ADDR BridgeMcAddr;
+extern SK_MAC_ADDR SkRlmtMcAddr;
+
+/* function prototypes ********************************************************/
+
+
+#ifndef SK_KR_PROTO
+
+/* Functions provided by SkRlmt */
+
+/* ANSI/C++ compliant function prototypes */
+
+extern void SkRlmtInit(
+ SK_AC *pAC,
+ SK_IOC IoC,
+ int Level);
+
+extern int SkRlmtEvent(
+ SK_AC *pAC,
+ SK_IOC IoC,
+ SK_U32 Event,
+ SK_EVPARA Para);
+
+#else /* defined(SK_KR_PROTO) */
+
+/* Non-ANSI/C++ compliant function prototypes */
+
+#error KR-style function prototypes are not yet provided.
+
+#endif /* defined(SK_KR_PROTO)) */
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __INC_SKRLMT_H */