summaryrefslogtreecommitdiff
path: root/drivers/sk98lin/skrlmt.c
diff options
context:
space:
mode:
authorwdenk <wdenk>2003-09-05 23:19:14 +0000
committerwdenk <wdenk>2003-09-05 23:19:14 +0000
commit7152b1d0b3f8beec8c297d64664e41b4c4ef610a (patch)
tree00df503a08239cd4d02840a738bc835d2ac6fc9e /drivers/sk98lin/skrlmt.c
parent4d816774f120e5f0278197eb9de32a6e318cce04 (diff)
downloadu-boot-imx-7152b1d0b3f8beec8c297d64664e41b4c4ef610a.zip
u-boot-imx-7152b1d0b3f8beec8c297d64664e41b4c4ef610a.tar.gz
u-boot-imx-7152b1d0b3f8beec8c297d64664e41b4c4ef610a.tar.bz2
* Add support for SK98xx driver
* Add PCI support for SL8245 board * Support IceCube board configurations with 1 x AMD AM29LV065 (8 MB) or 1 x AM29LV652 (two LV065 in one chip = 16 MB); Run IPB at 133 Mhz; adjust the MII clock frequency accordingly * Set BRG_CLK on PM825/826 to 64MHz (VCO_OUT / 4, instead of 16 MHz) to allow for more accurate baudrate settings (error now 0.7% at 115 kbps, instead of 3.5% before) * Patch by Andreas Mohr, 4 Sep 2003: Fix a lot of spelling errors
Diffstat (limited to 'drivers/sk98lin/skrlmt.c')
-rw-r--r--drivers/sk98lin/skrlmt.c3502
1 files changed, 3502 insertions, 0 deletions
diff --git a/drivers/sk98lin/skrlmt.c b/drivers/sk98lin/skrlmt.c
new file mode 100644
index 0000000..26b3f74
--- /dev/null
+++ b/drivers/sk98lin/skrlmt.c
@@ -0,0 +1,3502 @@
+/******************************************************************************
+ *
+ * Name: skrlmt.c
+ * Project: GEnesis, PCI Gigabit Ethernet Adapter
+ * Version: $Revision: 1.68 $
+ * Date: $Date: 2003/01/31 15:26:56 $
+ * Purpose: Manage links on SK-NET Adapters, esp. redundant ones.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * (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.c,v $
+ * Revision 1.68 2003/01/31 15:26:56 rschmidt
+ * Added init for local variables in RlmtInit().
+ *
+ * Revision 1.67 2003/01/31 14:12:41 mkunz
+ * single port adapter runs now with two identical MAC addresses
+ *
+ * Revision 1.66 2002/09/23 15:14:19 rwahl
+ * - Reset broadcast timestamp on link down.
+ * - Editorial corrections.
+ *
+ * Revision 1.65 2002/07/22 14:29:48 rwahl
+ * - Removed BRK statement from debug check.
+ *
+ * Revision 1.64 2001/11/28 19:36:14 rwahl
+ * - RLMT Packets sent to an invalid MAC address in CLP/CLPSS mode
+ * (#10650).
+ * - Reworked fix for port switching in CLS mode (#10639)
+ * (no dependency to RLMT module).
+ * - Enabled dbg output for entry/exit of event functions.
+ * - Editorial changes.
+ *
+ * Revision 1.63 2001/10/26 07:53:18 afischer
+ * Port switching bug in `check local link` mode
+ *
+ * Revision 1.62 2001/07/03 12:16:30 mkunz
+ * New Flag ChgBcPrio (Change priority of last broadcast received)
+ *
+ * Revision 1.61 2001/03/14 12:52:08 rassmann
+ * Fixed reporting of active port up/down to PNMI.
+ *
+ * Revision 1.60 2001/02/21 16:02:25 gklug
+ * fix: when RLMT starts set Active Port for PNMI
+ *
+ * Revision 1.59 2001/02/16 14:38:19 rassmann
+ * Initializing some pointers earlier in the init phase.
+ * Rx Mbufs are freed if the net which they belong to is stopped.
+ *
+ * Revision 1.58 2001/02/14 14:06:31 rassmann
+ * Editorial changes.
+ *
+ * Revision 1.57 2001/02/05 14:25:26 rassmann
+ * Prepared RLMT for transparent operation.
+ *
+ * Revision 1.56 2001/01/30 10:29:09 rassmann
+ * Not checking switching befor RlmtStart.
+ * Editorial changes.
+ *
+ * Revision 1.55 2001/01/22 13:41:38 rassmann
+ * Supporting two nets on dual-port adapters.
+ *
+ * Revision 1.54 2000/11/30 13:25:07 rassmann
+ * Setting SK_TICK_INCR to 1 by default.
+ *
+ * Revision 1.53 2000/11/30 10:48:07 cgoos
+ * Changed definition of SK_RLMT_BC_DELTA.
+ *
+ * Revision 1.52 2000/11/27 12:50:03 rassmann
+ * Checking ports after receiving broadcasts.
+ *
+ * Revision 1.51 2000/11/17 08:58:00 rassmann
+ * Moved CheckSwitch from SK_RLMT_PACKET_RECEIVED to SK_RLMT_TIM event.
+ *
+ * Revision 1.50 2000/11/09 12:24:34 rassmann
+ * Indicating that segmentation check is not running anymore after
+ * SkRlmtCheckSeg().
+ * Restarting segmentation timer after segmentation log.
+ * Editorial changes.
+ *
+ * Revision 1.49 1999/11/22 13:38:02 cgoos
+ * Changed license header to GPL.
+ * Added initialization to some variables to avoid compiler warnings.
+ *
+ * Revision 1.48 1999/10/04 14:01:17 rassmann
+ * Corrected reaction to reception of BPDU frames (#10441).
+ *
+ * Revision 1.47 1999/07/20 12:53:36 rassmann
+ * Fixed documentation errors for lookahead macros.
+ *
+ * Revision 1.46 1999/05/28 13:29:16 rassmann
+ * Replaced C++-style comment.
+ *
+ * Revision 1.45 1999/05/28 13:28:08 rassmann
+ * Corrected syntax error (xxx).
+ *
+ * Revision 1.44 1999/05/28 11:15:54 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 1.43 1999/01/28 13:12:43 rassmann
+ * Corrected Lookahead (bug introduced in previous Rev.).
+ *
+ * Revision 1.42 1999/01/28 12:50:41 rassmann
+ * Not using broadcast time stamps in CheckLinkState mode.
+ *
+ * Revision 1.41 1999/01/27 14:13:02 rassmann
+ * Monitoring broadcast traffic.
+ * Switching more reliably and not too early if switch is
+ * configured for spanning tree.
+ *
+ * Revision 1.40 1999/01/22 13:17:30 rassmann
+ * Informing PNMI of NET_UP.
+ * Clearing RLMT multicast addresses before setting them for the first time.
+ * Reporting segmentation earlier, setting a "quiet time"
+ * after a report.
+ *
+ * Revision 1.39 1998/12/10 15:29:53 rassmann
+ * Corrected SuspectStatus in SkRlmtBuildCheckChain().
+ * Corrected CHECK_SEG mode.
+ *
+ * Revision 1.38 1998/12/08 13:11:23 rassmann
+ * Stopping SegTimer at RlmtStop.
+ *
+ * Revision 1.37 1998/12/07 16:51:42 rassmann
+ * Corrected comments.
+ *
+ * Revision 1.36 1998/12/04 10:58:56 rassmann
+ * Setting next pointer to NULL when receiving.
+ *
+ * Revision 1.35 1998/12/03 16:12:42 rassmann
+ * Ignoring/correcting illegal PrefPort values.
+ *
+ * Revision 1.34 1998/12/01 11:45:35 rassmann
+ * Code cleanup.
+ *
+ * Revision 1.33 1998/12/01 10:29:32 rassmann
+ * Starting standby ports before getting the net up.
+ * Checking if a port is started when the link comes up.
+ *
+ * Revision 1.32 1998/11/30 16:19:50 rassmann
+ * New default for PortNoRx.
+ *
+ * Revision 1.31 1998/11/27 19:17:13 rassmann
+ * Corrected handling of LINK_DOWN coming shortly after LINK_UP.
+ *
+ * Revision 1.30 1998/11/24 12:37:31 rassmann
+ * Implemented segmentation check.
+ *
+ * Revision 1.29 1998/11/18 13:04:32 rassmann
+ * Secured PortUpTimer event.
+ * Waiting longer before starting standby port(s).
+ *
+ * Revision 1.28 1998/11/17 13:43:04 rassmann
+ * Handling (logical) tx failure.
+ * Sending packet on logical address after PORT_SWITCH.
+ *
+ * Revision 1.27 1998/11/13 17:09:50 rassmann
+ * Secured some events against being called in wrong state.
+ *
+ * Revision 1.26 1998/11/13 16:56:54 rassmann
+ * Added macro version of SkRlmtLookaheadPacket.
+ *
+ * Revision 1.25 1998/11/06 18:06:04 rassmann
+ * Corrected timing when RLMT checks fail.
+ * Clearing tx counter earlier in periodical checks.
+ *
+ * Revision 1.24 1998/11/05 10:37:27 rassmann
+ * Checking destination address in Lookahead.
+ *
+ * Revision 1.23 1998/11/03 13:53:49 rassmann
+ * RLMT should switch now (at least in mode 3).
+ *
+ * Revision 1.22 1998/10/29 14:34:49 rassmann
+ * Clearing SK_RLMT struct at startup.
+ * Initializing PortsUp during SK_RLMT_START.
+ *
+ * Revision 1.21 1998/10/28 11:30:17 rassmann
+ * Default mode is now SK_RLMT_CHECK_LOC_LINK.
+ *
+ * Revision 1.20 1998/10/26 16:02:03 rassmann
+ * Ignoring LINK_DOWN for links that are down.
+ *
+ * Revision 1.19 1998/10/22 15:54:01 rassmann
+ * Corrected EtherLen.
+ * Starting Link Check when second port comes up.
+ *
+ * Revision 1.18 1998/10/22 11:39:50 rassmann
+ * Corrected signed/unsigned mismatches.
+ * Corrected receive list handling and address recognition.
+ *
+ * Revision 1.17 1998/10/19 17:01:20 rassmann
+ * More detailed checking of received packets.
+ *
+ * Revision 1.16 1998/10/15 15:16:34 rassmann
+ * Finished Spanning Tree checking.
+ * Checked with lint.
+ *
+ * Revision 1.15 1998/09/24 19:16:07 rassmann
+ * Code cleanup.
+ * Introduced Timer for PORT_DOWN due to no RX.
+ *
+ * Revision 1.14 1998/09/18 20:27:14 rassmann
+ * Added address override.
+ *
+ * Revision 1.13 1998/09/16 11:31:48 rassmann
+ * Including skdrv1st.h again. :(
+ *
+ * Revision 1.12 1998/09/16 11:09:50 rassmann
+ * Syntax corrections.
+ *
+ * Revision 1.11 1998/09/15 12:32:03 rassmann
+ * Syntax correction.
+ *
+ * Revision 1.10 1998/09/15 11:28:49 rassmann
+ * Syntax corrections.
+ *
+ * Revision 1.9 1998/09/14 17:07:37 rassmann
+ * Added code for port checking via LAN.
+ * Changed Mbuf definition.
+ *
+ * Revision 1.8 1998/09/07 11:14:14 rassmann
+ * Syntax corrections.
+ *
+ * Revision 1.7 1998/09/07 09:06:07 rassmann
+ * Syntax corrections.
+ *
+ * Revision 1.6 1998/09/04 19:41:33 rassmann
+ * Syntax corrections.
+ * Started entering code for checking local links.
+ *
+ * Revision 1.5 1998/09/04 12:14:27 rassmann
+ * Interface cleanup.
+ *
+ * Revision 1.4 1998/09/02 16:55:28 rassmann
+ * Updated to reflect new DRV/HWAC/RLMT interface.
+ *
+ * Revision 1.3 1998/08/27 14:29:03 rassmann
+ * Code cleanup.
+ *
+ * Revision 1.2 1998/08/27 14:26:24 rassmann
+ * Updated interface.
+ *
+ * Revision 1.1 1998/08/21 08:26:49 rassmann
+ * First public version.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * Description:
+ *
+ * This module contains code for Link ManagemenT (LMT) of SK-NET Adapters.
+ * It is mainly intended for adapters with more than one link.
+ * For such adapters, this module realizes Redundant Link ManagemenT (RLMT).
+ *
+ * Include File Hierarchy:
+ *
+ * "skdrv1st.h"
+ * "skdrv2nd.h"
+ *
+ ******************************************************************************/
+
+#ifndef lint
+static const char SysKonnectFileId[] =
+ "@(#) $Id: skrlmt.c,v 1.68 2003/01/31 15:26:56 rschmidt Exp $ (C) SysKonnect.";
+#endif /* !defined(lint) */
+
+#define __SKRLMT_C
+
+#ifdef __cplusplus
+#error C++ is not yet supported.
+extern "C" {
+#endif /* cplusplus */
+
+#include "h/skdrv1st.h"
+#include "h/skdrv2nd.h"
+
+/* defines ********************************************************************/
+
+#ifndef SK_HWAC_LINK_LED
+#define SK_HWAC_LINK_LED(a,b,c,d)
+#endif /* !defined(SK_HWAC_LINK_LED) */
+
+#ifndef DEBUG
+#define RLMT_STATIC static
+#else /* DEBUG */
+#define RLMT_STATIC
+
+#ifndef SK_LITTLE_ENDIAN
+/* First 32 bits */
+#define OFFS_LO32 1
+
+/* Second 32 bits */
+#define OFFS_HI32 0
+#else /* SK_LITTLE_ENDIAN */
+/* First 32 bits */
+#define OFFS_LO32 0
+
+/* Second 32 bits */
+#define OFFS_HI32 1
+#endif /* SK_LITTLE_ENDIAN */
+
+#endif /* DEBUG */
+
+/* ----- Private timeout values ----- */
+
+#define SK_RLMT_MIN_TO_VAL 125000 /* 1/8 sec. */
+#define SK_RLMT_DEF_TO_VAL 1000000 /* 1 sec. */
+#define SK_RLMT_PORTDOWN_TIM_VAL 900000 /* another 0.9 sec. */
+#define SK_RLMT_PORTSTART_TIM_VAL 100000 /* 0.1 sec. */
+#define SK_RLMT_PORTUP_TIM_VAL 2500000 /* 2.5 sec. */
+#define SK_RLMT_SEG_TO_VAL 900000000 /* 15 min. */
+
+/* Assume tick counter increment is 1 - may be set OS-dependent. */
+#ifndef SK_TICK_INCR
+#define SK_TICK_INCR SK_CONSTU64(1)
+#endif /* !defined(SK_TICK_INCR) */
+
+/*
+ * Amount that a time stamp must be later to be recognized as "substantially
+ * later". This is about 1/128 sec, but above 1 tick counter increment.
+ */
+#define SK_RLMT_BC_DELTA (1 + ((SK_TICKS_PER_SEC >> 7) > SK_TICK_INCR ? \
+ (SK_TICKS_PER_SEC >> 7) : SK_TICK_INCR))
+
+/* ----- Private RLMT defaults ----- */
+
+#define SK_RLMT_DEF_PREF_PORT 0 /* "Lower" port. */
+#define SK_RLMT_DEF_MODE SK_RLMT_CHECK_LINK /* Default RLMT Mode. */
+
+/* ----- Private RLMT checking states ----- */
+
+#define SK_RLMT_RCS_SEG 1 /* RLMT Check State: check seg. */
+#define SK_RLMT_RCS_START_SEG 2 /* RLMT Check State: start check seg. */
+#define SK_RLMT_RCS_SEND_SEG 4 /* RLMT Check State: send BPDU packet */
+#define SK_RLMT_RCS_REPORT_SEG 8 /* RLMT Check State: report seg. */
+
+/* ----- Private PORT checking states ----- */
+
+#define SK_RLMT_PCS_TX 1 /* Port Check State: check tx. */
+#define SK_RLMT_PCS_RX 2 /* Port Check State: check rx. */
+
+/* ----- Private PORT events ----- */
+
+/* Note: Update simulation when changing these. */
+#define SK_RLMT_PORTSTART_TIM 1100 /* Port start timeout. */
+#define SK_RLMT_PORTUP_TIM 1101 /* Port can now go up. */
+#define SK_RLMT_PORTDOWN_RX_TIM 1102 /* Port did not receive once ... */
+#define SK_RLMT_PORTDOWN 1103 /* Port went down. */
+#define SK_RLMT_PORTDOWN_TX_TIM 1104 /* Partner did not receive ... */
+
+/* ----- Private RLMT events ----- */
+
+/* Note: Update simulation when changing these. */
+#define SK_RLMT_TIM 2100 /* RLMT timeout. */
+#define SK_RLMT_SEG_TIM 2101 /* RLMT segmentation check timeout. */
+
+#define TO_SHORTEN(tim) ((tim) / 2)
+
+/* Error numbers and messages. */
+#define SKERR_RLMT_E001 (SK_ERRBASE_RLMT + 0)
+#define SKERR_RLMT_E001_MSG "No Packet."
+#define SKERR_RLMT_E002 (SKERR_RLMT_E001 + 1)
+#define SKERR_RLMT_E002_MSG "Short Packet."
+#define SKERR_RLMT_E003 (SKERR_RLMT_E002 + 1)
+#define SKERR_RLMT_E003_MSG "Unknown RLMT event."
+#define SKERR_RLMT_E004 (SKERR_RLMT_E003 + 1)
+#define SKERR_RLMT_E004_MSG "PortsUp incorrect."
+#define SKERR_RLMT_E005 (SKERR_RLMT_E004 + 1)
+#define SKERR_RLMT_E005_MSG \
+ "Net seems to be segmented (different root bridges are reported on the ports)."
+#define SKERR_RLMT_E006 (SKERR_RLMT_E005 + 1)
+#define SKERR_RLMT_E006_MSG "Duplicate MAC Address detected."
+#define SKERR_RLMT_E007 (SKERR_RLMT_E006 + 1)
+#define SKERR_RLMT_E007_MSG "LinksUp incorrect."
+#define SKERR_RLMT_E008 (SKERR_RLMT_E007 + 1)
+#define SKERR_RLMT_E008_MSG "Port not started but link came up."
+#define SKERR_RLMT_E009 (SKERR_RLMT_E008 + 1)
+#define SKERR_RLMT_E009_MSG "Corrected illegal setting of Preferred Port."
+#define SKERR_RLMT_E010 (SKERR_RLMT_E009 + 1)
+#define SKERR_RLMT_E010_MSG "Ignored illegal Preferred Port."
+
+/* LLC field values. */
+#define LLC_COMMAND_RESPONSE_BIT 1
+#define LLC_TEST_COMMAND 0xE3
+#define LLC_UI 0x03
+
+/* RLMT Packet fields. */
+#define SK_RLMT_DSAP 0
+#define SK_RLMT_SSAP 0
+#define SK_RLMT_CTRL (LLC_TEST_COMMAND)
+#define SK_RLMT_INDICATOR0 0x53 /* S */
+#define SK_RLMT_INDICATOR1 0x4B /* K */
+#define SK_RLMT_INDICATOR2 0x2D /* - */
+#define SK_RLMT_INDICATOR3 0x52 /* R */
+#define SK_RLMT_INDICATOR4 0x4C /* L */
+#define SK_RLMT_INDICATOR5 0x4D /* M */
+#define SK_RLMT_INDICATOR6 0x54 /* T */
+#define SK_RLMT_PACKET_VERSION 0
+
+/* RLMT SPT Flag values. */
+#define SK_RLMT_SPT_FLAG_CHANGE 0x01
+#define SK_RLMT_SPT_FLAG_CHANGE_ACK 0x80
+
+/* RLMT SPT Packet fields. */
+#define SK_RLMT_SPT_DSAP 0x42
+#define SK_RLMT_SPT_SSAP 0x42
+#define SK_RLMT_SPT_CTRL (LLC_UI)
+#define SK_RLMT_SPT_PROTOCOL_ID0 0x00
+#define SK_RLMT_SPT_PROTOCOL_ID1 0x00
+#define SK_RLMT_SPT_PROTOCOL_VERSION_ID 0x00
+#define SK_RLMT_SPT_BPDU_TYPE 0x00
+#define SK_RLMT_SPT_FLAGS 0x00 /* ?? */
+#define SK_RLMT_SPT_ROOT_ID0 0xFF /* Lowest possible priority. */
+#define SK_RLMT_SPT_ROOT_ID1 0xFF /* Lowest possible priority. */
+
+/* Remaining 6 bytes will be the current port address. */
+#define SK_RLMT_SPT_ROOT_PATH_COST0 0x00
+#define SK_RLMT_SPT_ROOT_PATH_COST1 0x00
+#define SK_RLMT_SPT_ROOT_PATH_COST2 0x00
+#define SK_RLMT_SPT_ROOT_PATH_COST3 0x00
+#define SK_RLMT_SPT_BRIDGE_ID0 0xFF /* Lowest possible priority. */
+#define SK_RLMT_SPT_BRIDGE_ID1 0xFF /* Lowest possible priority. */
+
+/* Remaining 6 bytes will be the current port address. */
+#define SK_RLMT_SPT_PORT_ID0 0xFF /* Lowest possible priority. */
+#define SK_RLMT_SPT_PORT_ID1 0xFF /* Lowest possible priority. */
+#define SK_RLMT_SPT_MSG_AGE0 0x00
+#define SK_RLMT_SPT_MSG_AGE1 0x00
+#define SK_RLMT_SPT_MAX_AGE0 0x00
+#define SK_RLMT_SPT_MAX_AGE1 0xFF
+#define SK_RLMT_SPT_HELLO_TIME0 0x00
+#define SK_RLMT_SPT_HELLO_TIME1 0xFF
+#define SK_RLMT_SPT_FWD_DELAY0 0x00
+#define SK_RLMT_SPT_FWD_DELAY1 0x40
+
+/* Size defines. */
+#define SK_RLMT_MIN_PACKET_SIZE 34
+#define SK_RLMT_MAX_PACKET_SIZE (SK_RLMT_MAX_TX_BUF_SIZE)
+#define SK_PACKET_DATA_LEN (SK_RLMT_MAX_PACKET_SIZE - \
+ SK_RLMT_MIN_PACKET_SIZE)
+
+/* ----- RLMT packet types ----- */
+#define SK_PACKET_ANNOUNCE 1 /* Port announcement. */
+#define SK_PACKET_ALIVE 2 /* Alive packet to port. */
+#define SK_PACKET_ADDR_CHANGED 3 /* Port address changed. */
+#define SK_PACKET_CHECK_TX 4 /* Check your tx line. */
+
+#ifdef SK_LITTLE_ENDIAN
+#define SK_U16_TO_NETWORK_ORDER(Val,Addr) { \
+ SK_U8 *_Addr = (SK_U8*)(Addr); \
+ SK_U16 _Val = (SK_U16)(Val); \
+ *_Addr++ = (SK_U8)(_Val >> 8); \
+ *_Addr = (SK_U8)(_Val & 0xFF); \
+}
+#endif /* SK_LITTLE_ENDIAN */
+
+#ifdef SK_BIG_ENDIAN
+#define SK_U16_TO_NETWORK_ORDER(Val,Addr) (*(SK_U16*)(Addr) = (SK_U16)(Val))
+#endif /* SK_BIG_ENDIAN */
+
+#define AUTONEG_FAILED SK_FALSE
+#define AUTONEG_SUCCESS SK_TRUE
+
+
+/* typedefs *******************************************************************/
+
+/* RLMT packet. Length: SK_RLMT_MAX_PACKET_SIZE (60) bytes. */
+typedef struct s_RlmtPacket {
+ SK_U8 DstAddr[SK_MAC_ADDR_LEN];
+ SK_U8 SrcAddr[SK_MAC_ADDR_LEN];
+ SK_U8 TypeLen[2];
+ SK_U8 DSap;
+ SK_U8 SSap;
+ SK_U8 Ctrl;
+ SK_U8 Indicator[7];
+ SK_U8 RlmtPacketType[2];
+ SK_U8 Align1[2];
+ SK_U8 Random[4]; /* Random value of requesting(!) station. */
+ SK_U8 RlmtPacketVersion[2]; /* RLMT Packet version. */
+ SK_U8 Data[SK_PACKET_DATA_LEN];
+} SK_RLMT_PACKET;
+
+typedef struct s_SpTreeRlmtPacket {
+ SK_U8 DstAddr[SK_MAC_ADDR_LEN];
+ SK_U8 SrcAddr[SK_MAC_ADDR_LEN];
+ SK_U8 TypeLen[2];
+ SK_U8 DSap;
+ SK_U8 SSap;
+ SK_U8 Ctrl;
+ SK_U8 ProtocolId[2];
+ SK_U8 ProtocolVersionId;
+ SK_U8 BpduType;
+ SK_U8 Flags;
+ SK_U8 RootId[8];
+ SK_U8 RootPathCost[4];
+ SK_U8 BridgeId[8];
+ SK_U8 PortId[2];
+ SK_U8 MessageAge[2];
+ SK_U8 MaxAge[2];
+ SK_U8 HelloTime[2];
+ SK_U8 ForwardDelay[2];
+} SK_SPTREE_PACKET;
+
+/* global variables ***********************************************************/
+
+SK_MAC_ADDR SkRlmtMcAddr = {{0x01, 0x00, 0x5A, 0x52, 0x4C, 0x4D}};
+SK_MAC_ADDR BridgeMcAddr = {{0x01, 0x80, 0xC2, 0x00, 0x00, 0x00}};
+SK_MAC_ADDR BcAddr = {{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}};
+
+/* local variables ************************************************************/
+
+/* None. */
+
+/* functions ******************************************************************/
+
+RLMT_STATIC void SkRlmtCheckSwitch(
+ SK_AC *pAC,
+ SK_IOC IoC,
+ SK_U32 NetIdx);
+RLMT_STATIC void SkRlmtCheckSeg(
+ SK_AC *pAC,
+ SK_IOC IoC,
+ SK_U32 NetIdx);
+RLMT_STATIC void SkRlmtEvtSetNets(
+ SK_AC *pAC,
+ SK_IOC IoC,
+ SK_EVPARA Para);
+
+/******************************************************************************
+ *
+ * SkRlmtInit - initialize data, set state to init
+ *
+ * Description:
+ *
+ * SK_INIT_DATA
+ * ============
+ *
+ * This routine initializes all RLMT-related variables to a known state.
+ * The initial state is SK_RLMT_RS_INIT.
+ * All ports are initialized to SK_RLMT_PS_INIT.
+ *
+ *
+ * SK_INIT_IO
+ * ==========
+ *
+ * Nothing.
+ *
+ *
+ * SK_INIT_RUN
+ * ===========
+ *
+ * Determine the adapter's random value.
+ * Set the hw registers, the "logical MAC address", the
+ * RLMT multicast address, and eventually the BPDU multicast address.
+ *
+ * Context:
+ * init, pageable
+ *
+ * Returns:
+ * Nothing.
+ */
+void SkRlmtInit(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+int Level) /* Initialization Level */
+{
+ SK_U32 i, j;
+ SK_U64 Random;
+ SK_EVPARA Para;
+ SK_MAC_ADDR VirtualMacAddress;
+ SK_MAC_ADDR PhysicalAMacAddress;
+ SK_BOOL VirtualMacAddressSet;
+ SK_BOOL PhysicalAMacAddressSet;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_INIT,
+ ("RLMT Init level %d.\n", Level))
+
+ switch (Level) {
+ case SK_INIT_DATA: /* Initialize data structures. */
+ SK_MEMSET((char *)&pAC->Rlmt, 0, sizeof(SK_RLMT));
+
+ for (i = 0; i < SK_MAX_MACS; i++) {
+ pAC->Rlmt.Port[i].PortState = SK_RLMT_PS_INIT;
+ pAC->Rlmt.Port[i].LinkDown = SK_TRUE;
+ pAC->Rlmt.Port[i].PortDown = SK_TRUE;
+ pAC->Rlmt.Port[i].PortStarted = SK_FALSE;
+ pAC->Rlmt.Port[i].PortNoRx = SK_FALSE;
+ pAC->Rlmt.Port[i].RootIdSet = SK_FALSE;
+ pAC->Rlmt.Port[i].PortNumber = i;
+ pAC->Rlmt.Port[i].Net = &pAC->Rlmt.Net[0];
+ pAC->Rlmt.Port[i].AddrPort = &pAC->Addr.Port[i];
+ }
+
+ pAC->Rlmt.NumNets = 1;
+ for (i = 0; i < SK_MAX_NETS; i++) {
+ pAC->Rlmt.Net[i].RlmtState = SK_RLMT_RS_INIT;
+ pAC->Rlmt.Net[i].RootIdSet = SK_FALSE;
+ pAC->Rlmt.Net[i].PrefPort = SK_RLMT_DEF_PREF_PORT;
+ pAC->Rlmt.Net[i].Preference = 0xFFFFFFFF; /* Automatic. */
+ /* Just assuming. */
+ pAC->Rlmt.Net[i].ActivePort = pAC->Rlmt.Net[i].PrefPort;
+ pAC->Rlmt.Net[i].RlmtMode = SK_RLMT_DEF_MODE;
+ pAC->Rlmt.Net[i].TimeoutValue = SK_RLMT_DEF_TO_VAL;
+ pAC->Rlmt.Net[i].NetNumber = i;
+ }
+
+ pAC->Rlmt.Net[0].Port[0] = &pAC->Rlmt.Port[0];
+ pAC->Rlmt.Net[0].Port[1] = &pAC->Rlmt.Port[1];
+#if SK_MAX_NETS > 1
+ pAC->Rlmt.Net[1].Port[0] = &pAC->Rlmt.Port[1];
+#endif /* SK_MAX_NETS > 1 */
+ break;
+
+ case SK_INIT_IO: /* GIMacsFound first available here. */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_INIT,
+ ("RLMT: %d MACs were detected.\n", pAC->GIni.GIMacsFound))
+
+ pAC->Rlmt.Net[0].NumPorts = pAC->GIni.GIMacsFound;
+
+ /* Initialize HW registers? */
+ if (pAC->GIni.GIMacsFound == 1) {
+ Para.Para32[0] = SK_RLMT_MODE_CLS;
+ Para.Para32[1] = 0;
+ (void)SkRlmtEvent(pAC, IoC, SK_RLMT_MODE_CHANGE, Para);
+ }
+ break;
+
+ case SK_INIT_RUN:
+ /* Ensure RLMT is set to one net. */
+ if (pAC->Rlmt.NumNets > 1) {
+ Para.Para32[0] = 1;
+ Para.Para32[1] = -1;
+ SkRlmtEvtSetNets(pAC, IoC, Para);
+ }
+
+ for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+ Random = SkOsGetTime(pAC);
+ *(SK_U32*)&pAC->Rlmt.Port[i].Random = *(SK_U32*)&Random;
+
+ for (j = 0; j < 4; j++) {
+ pAC->Rlmt.Port[i].Random[j] ^= pAC->Rlmt.Port[i].AddrPort->
+ CurrentMacAddress.a[SK_MAC_ADDR_LEN - 1 - j];
+ }
+
+ (void)SkAddrMcClear(pAC, IoC, i, SK_ADDR_PERMANENT | SK_MC_SW_ONLY);
+
+ /* Add RLMT MC address. */
+ (void)SkAddrMcAdd(pAC, IoC, i, &SkRlmtMcAddr, SK_ADDR_PERMANENT);
+
+ if (pAC->Rlmt.Net[0].RlmtMode & SK_RLMT_CHECK_SEG) {
+ /* Add BPDU MC address. */
+ (void)SkAddrMcAdd(pAC, IoC, i, &BridgeMcAddr, SK_ADDR_PERMANENT);
+ }
+
+ (void)SkAddrMcUpdate(pAC, IoC, i);
+ }
+
+ VirtualMacAddressSet = SK_FALSE;
+ /* Read virtual MAC address from Control Register File. */
+ for (j = 0; j < SK_MAC_ADDR_LEN; j++) {
+
+ SK_IN8(IoC, B2_MAC_1 + j, &VirtualMacAddress.a[j]);
+ VirtualMacAddressSet |= VirtualMacAddress.a[j];
+ }
+
+ PhysicalAMacAddressSet = SK_FALSE;
+ /* Read physical MAC address for MAC A from Control Register File. */
+ for (j = 0; j < SK_MAC_ADDR_LEN; j++) {
+
+ SK_IN8(IoC, B2_MAC_2 + j, &PhysicalAMacAddress.a[j]);
+ PhysicalAMacAddressSet |= PhysicalAMacAddress.a[j];
+ }
+
+ /* check if the two mac addresses contain reasonable values */
+ if (!VirtualMacAddressSet || !PhysicalAMacAddressSet) {
+
+ pAC->Rlmt.RlmtOff = SK_TRUE;
+ }
+
+ /* if the two mac addresses are equal switch off the RLMT_PRE_LOOKAHEAD
+ and the RLMT_LOOKAHEAD macros */
+ else if (SK_ADDR_EQUAL(PhysicalAMacAddress.a, VirtualMacAddress.a)) {
+
+ pAC->Rlmt.RlmtOff = SK_TRUE;
+ }
+ else {
+ pAC->Rlmt.RlmtOff = SK_FALSE;
+ }
+ break;
+
+ default: /* error */
+ break;
+ }
+ return;
+} /* SkRlmtInit */
+
+
+/******************************************************************************
+ *
+ * SkRlmtBuildCheckChain - build the check chain
+ *
+ * Description:
+ * This routine builds the local check chain:
+ * - Each port that is up checks the next port.
+ * - The last port that is up checks the first port that is up.
+ *
+ * Notes:
+ * - Currently only local ports are considered when building the chain.
+ * - Currently the SuspectState is just reset;
+ * it would be better to save it ...
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtBuildCheckChain(
+SK_AC *pAC, /* Adapter Context */
+SK_U32 NetIdx) /* Net Number */
+{
+ SK_U32 i;
+ SK_U32 NumMacsUp;
+ SK_RLMT_PORT * FirstMacUp;
+ SK_RLMT_PORT * PrevMacUp;
+
+ FirstMacUp = NULL;
+ PrevMacUp = NULL;
+
+ if (!(pAC->Rlmt.Net[NetIdx].RlmtMode & SK_RLMT_CHECK_LOC_LINK)) {
+ for (i = 0; i < pAC->Rlmt.Net[i].NumPorts; i++) {
+ pAC->Rlmt.Net[NetIdx].Port[i]->PortsChecked = 0;
+ }
+ return; /* Done. */
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SkRlmtBuildCheckChain.\n"))
+
+ NumMacsUp = 0;
+
+ for (i = 0; i < pAC->Rlmt.Net[NetIdx].NumPorts; i++) {
+ pAC->Rlmt.Net[NetIdx].Port[i]->PortsChecked = 0;
+ pAC->Rlmt.Net[NetIdx].Port[i]->PortsSuspect = 0;
+ pAC->Rlmt.Net[NetIdx].Port[i]->CheckingState &=
+ ~(SK_RLMT_PCS_RX | SK_RLMT_PCS_TX);
+
+ /*
+ * If more than two links are detected we should consider
+ * checking at least two other ports:
+ * 1. the next port that is not LinkDown and
+ * 2. the next port that is not PortDown.
+ */
+ if (!pAC->Rlmt.Net[NetIdx].Port[i]->LinkDown) {
+ if (NumMacsUp == 0) {
+ FirstMacUp = pAC->Rlmt.Net[NetIdx].Port[i];
+ }
+ else {
+ PrevMacUp->PortCheck[
+ pAC->Rlmt.Net[NetIdx].Port[i]->PortsChecked].CheckAddr =
+ pAC->Rlmt.Net[NetIdx].Port[i]->AddrPort->CurrentMacAddress;
+ PrevMacUp->PortCheck[
+ PrevMacUp->PortsChecked].SuspectTx = SK_FALSE;
+ PrevMacUp->PortsChecked++;
+ }
+ PrevMacUp = pAC->Rlmt.Net[NetIdx].Port[i];
+ NumMacsUp++;
+ }
+ }
+
+ if (NumMacsUp > 1) {
+ PrevMacUp->PortCheck[PrevMacUp->PortsChecked].CheckAddr =
+ FirstMacUp->AddrPort->CurrentMacAddress;
+ PrevMacUp->PortCheck[PrevMacUp->PortsChecked].SuspectTx =
+ SK_FALSE;
+ PrevMacUp->PortsChecked++;
+ }
+
+#ifdef DEBUG
+ for (i = 0; i < pAC->Rlmt.Net[NetIdx].NumPorts; i++) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Port %d checks %d other ports: %2X.\n", i,
+ pAC->Rlmt.Net[NetIdx].Port[i]->PortsChecked,
+ pAC->Rlmt.Net[NetIdx].Port[i]->PortCheck[0].CheckAddr.a[5]))
+ }
+#endif /* DEBUG */
+
+ return;
+} /* SkRlmtBuildCheckChain */
+
+
+/******************************************************************************
+ *
+ * SkRlmtBuildPacket - build an RLMT packet
+ *
+ * Description:
+ * This routine sets up an RLMT packet.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * NULL or pointer to RLMT mbuf
+ */
+RLMT_STATIC SK_MBUF *SkRlmtBuildPacket(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 PortNumber, /* Sending port */
+SK_U16 PacketType, /* RLMT packet type */
+SK_MAC_ADDR *SrcAddr, /* Source address */
+SK_MAC_ADDR *DestAddr) /* Destination address */
+{
+ int i;
+ SK_U16 Length;
+ SK_MBUF *pMb;
+ SK_RLMT_PACKET *pPacket;
+
+#ifdef DEBUG
+ SK_U8 CheckSrc = 0;
+ SK_U8 CheckDest = 0;
+
+ for (i = 0; i < SK_MAC_ADDR_LEN; ++i) {
+ CheckSrc |= SrcAddr->a[i];
+ CheckDest |= DestAddr->a[i];
+ }
+
+ if ((CheckSrc == 0) || (CheckDest == 0)) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_ERR,
+ ("SkRlmtBuildPacket: Invalid %s%saddr.\n",
+ (CheckSrc == 0 ? "Src" : ""), (CheckDest == 0 ? "Dest" : "")))
+ }
+#endif
+
+ if ((pMb = SkDrvAllocRlmtMbuf(pAC, IoC, SK_RLMT_MAX_PACKET_SIZE)) != NULL) {
+ pPacket = (SK_RLMT_PACKET*)pMb->pData;
+ for (i = 0; i < SK_MAC_ADDR_LEN; i++) {
+ pPacket->DstAddr[i] = DestAddr->a[i];
+ pPacket->SrcAddr[i] = SrcAddr->a[i];
+ }
+ pPacket->DSap = SK_RLMT_DSAP;
+ pPacket->SSap = SK_RLMT_SSAP;
+ pPacket->Ctrl = SK_RLMT_CTRL;
+ pPacket->Indicator[0] = SK_RLMT_INDICATOR0;
+ pPacket->Indicator[1] = SK_RLMT_INDICATOR1;
+ pPacket->Indicator[2] = SK_RLMT_INDICATOR2;
+ pPacket->Indicator[3] = SK_RLMT_INDICATOR3;
+ pPacket->Indicator[4] = SK_RLMT_INDICATOR4;
+ pPacket->Indicator[5] = SK_RLMT_INDICATOR5;
+ pPacket->Indicator[6] = SK_RLMT_INDICATOR6;
+
+ SK_U16_TO_NETWORK_ORDER(PacketType, &pPacket->RlmtPacketType[0]);
+
+ for (i = 0; i < 4; i++) {
+ pPacket->Random[i] = pAC->Rlmt.Port[PortNumber].Random[i];
+ }
+
+ SK_U16_TO_NETWORK_ORDER(
+ SK_RLMT_PACKET_VERSION, &pPacket->RlmtPacketVersion[0]);
+
+ for (i = 0; i < SK_PACKET_DATA_LEN; i++) {
+ pPacket->Data[i] = 0x00;
+ }
+
+ Length = SK_RLMT_MAX_PACKET_SIZE; /* Or smaller. */
+ pMb->Length = Length;
+ pMb->PortIdx = PortNumber;
+ Length -= 14;
+ SK_U16_TO_NETWORK_ORDER(Length, &pPacket->TypeLen[0]);
+
+ if (PacketType == SK_PACKET_ALIVE) {
+ pAC->Rlmt.Port[PortNumber].TxHelloCts++;
+ }
+ }
+
+ return (pMb);
+} /* SkRlmtBuildPacket */
+
+
+/******************************************************************************
+ *
+ * SkRlmtBuildSpanningTreePacket - build spanning tree check packet
+ *
+ * Description:
+ * This routine sets up a BPDU packet for spanning tree check.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * NULL or pointer to RLMT mbuf
+ */
+RLMT_STATIC SK_MBUF *SkRlmtBuildSpanningTreePacket(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 PortNumber) /* Sending port */
+{
+ unsigned i;
+ SK_U16 Length;
+ SK_MBUF *pMb;
+ SK_SPTREE_PACKET *pSPacket;
+
+ if ((pMb = SkDrvAllocRlmtMbuf(pAC, IoC, SK_RLMT_MAX_PACKET_SIZE)) !=
+ NULL) {
+ pSPacket = (SK_SPTREE_PACKET*)pMb->pData;
+ for (i = 0; i < SK_MAC_ADDR_LEN; i++) {
+ pSPacket->DstAddr[i] = BridgeMcAddr.a[i];
+ pSPacket->SrcAddr[i] =
+ pAC->Addr.Port[PortNumber].CurrentMacAddress.a[i];
+ }
+ pSPacket->DSap = SK_RLMT_SPT_DSAP;
+ pSPacket->SSap = SK_RLMT_SPT_SSAP;
+ pSPacket->Ctrl = SK_RLMT_SPT_CTRL;
+
+ pSPacket->ProtocolId[0] = SK_RLMT_SPT_PROTOCOL_ID0;
+ pSPacket->ProtocolId[1] = SK_RLMT_SPT_PROTOCOL_ID1;
+ pSPacket->ProtocolVersionId = SK_RLMT_SPT_PROTOCOL_VERSION_ID;
+ pSPacket->BpduType = SK_RLMT_SPT_BPDU_TYPE;
+ pSPacket->Flags = SK_RLMT_SPT_FLAGS;
+ pSPacket->RootId[0] = SK_RLMT_SPT_ROOT_ID0;
+ pSPacket->RootId[1] = SK_RLMT_SPT_ROOT_ID1;
+ pSPacket->RootPathCost[0] = SK_RLMT_SPT_ROOT_PATH_COST0;
+ pSPacket->RootPathCost[1] = SK_RLMT_SPT_ROOT_PATH_COST1;
+ pSPacket->RootPathCost[2] = SK_RLMT_SPT_ROOT_PATH_COST2;
+ pSPacket->RootPathCost[3] = SK_RLMT_SPT_ROOT_PATH_COST3;
+ pSPacket->BridgeId[0] = SK_RLMT_SPT_BRIDGE_ID0;
+ pSPacket->BridgeId[1] = SK_RLMT_SPT_BRIDGE_ID1;
+
+ /*
+ * Use logical MAC address as bridge ID and filter these packets
+ * on receive.
+ */
+ for (i = 0; i < SK_MAC_ADDR_LEN; i++) {
+ pSPacket->BridgeId[i + 2] = pSPacket->RootId[i + 2] =
+ pAC->Addr.Net[pAC->Rlmt.Port[PortNumber].Net->NetNumber].
+ CurrentMacAddress.a[i];
+ }
+ pSPacket->PortId[0] = SK_RLMT_SPT_PORT_ID0;
+ pSPacket->PortId[1] = SK_RLMT_SPT_PORT_ID1;
+ pSPacket->MessageAge[0] = SK_RLMT_SPT_MSG_AGE0;
+ pSPacket->MessageAge[1] = SK_RLMT_SPT_MSG_AGE1;
+ pSPacket->MaxAge[0] = SK_RLMT_SPT_MAX_AGE0;
+ pSPacket->MaxAge[1] = SK_RLMT_SPT_MAX_AGE1;
+ pSPacket->HelloTime[0] = SK_RLMT_SPT_HELLO_TIME0;
+ pSPacket->HelloTime[1] = SK_RLMT_SPT_HELLO_TIME1;
+ pSPacket->ForwardDelay[0] = SK_RLMT_SPT_FWD_DELAY0;
+ pSPacket->ForwardDelay[1] = SK_RLMT_SPT_FWD_DELAY1;
+
+ Length = SK_RLMT_MAX_PACKET_SIZE; /* Or smaller. */
+ pMb->Length = Length;
+ pMb->PortIdx = PortNumber;
+ Length -= 14;
+ SK_U16_TO_NETWORK_ORDER(Length, &pSPacket->TypeLen[0]);
+
+ pAC->Rlmt.Port[PortNumber].TxSpHelloReqCts++;
+ }
+
+ return (pMb);
+} /* SkRlmtBuildSpanningTreePacket */
+
+
+/******************************************************************************
+ *
+ * SkRlmtSend - build and send check packets
+ *
+ * Description:
+ * Depending on the RLMT state and the checking state, several packets
+ * are sent through the indicated port.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * Nothing.
+ */
+RLMT_STATIC void SkRlmtSend(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 PortNumber) /* Sending port */
+{
+ unsigned j;
+ SK_EVPARA Para;
+ SK_RLMT_PORT *pRPort;
+
+ pRPort = &pAC->Rlmt.Port[PortNumber];
+ if (pAC->Rlmt.Port[PortNumber].Net->RlmtMode & SK_RLMT_CHECK_LOC_LINK) {
+ if (pRPort->CheckingState & (SK_RLMT_PCS_TX | SK_RLMT_PCS_RX)) {
+ /* Port is suspicious. Send the RLMT packet to the RLMT mc addr. */
+ if ((Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, PortNumber,
+ SK_PACKET_ALIVE, &pAC->Addr.Port[PortNumber].CurrentMacAddress,
+ &SkRlmtMcAddr)) != NULL) {
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
+ }
+ }
+ else {
+ /*
+ * Send a directed RLMT packet to all ports that are
+ * checked by the indicated port.
+ */
+ for (j = 0; j < pRPort->PortsChecked; j++) {
+ if ((Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, PortNumber,
+ SK_PACKET_ALIVE, &pAC->Addr.Port[PortNumber].CurrentMacAddress,
+ &pRPort->PortCheck[j].CheckAddr)) != NULL) {
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
+ }
+ }
+ }
+ }
+
+ if ((pAC->Rlmt.Port[PortNumber].Net->RlmtMode & SK_RLMT_CHECK_SEG) &&
+ (pAC->Rlmt.Port[PortNumber].Net->CheckingState & SK_RLMT_RCS_SEND_SEG)) {
+ /*
+ * Send a BPDU packet to make a connected switch tell us
+ * the correct root bridge.
+ */
+ if ((Para.pParaPtr =
+ SkRlmtBuildSpanningTreePacket(pAC, IoC, PortNumber)) != NULL) {
+ pAC->Rlmt.Port[PortNumber].Net->CheckingState &= ~SK_RLMT_RCS_SEND_SEG;
+ pRPort->RootIdSet = SK_FALSE;
+
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_TX,
+ ("SkRlmtSend: BPDU Packet on Port %u.\n", PortNumber))
+ }
+ }
+ return;
+} /* SkRlmtSend */
+
+
+/******************************************************************************
+ *
+ * SkRlmtPortReceives - check if port is (going) down and bring it up
+ *
+ * Description:
+ * This routine checks if a port who received a non-BPDU packet
+ * needs to go up or needs to be stopped going down.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * Nothing.
+ */
+RLMT_STATIC void SkRlmtPortReceives(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 PortNumber) /* Port to check */
+{
+ SK_RLMT_PORT *pRPort;
+ SK_EVPARA Para;
+
+ pRPort = &pAC->Rlmt.Port[PortNumber];
+ pRPort->PortNoRx = SK_FALSE;
+
+ if ((pRPort->PortState == SK_RLMT_PS_DOWN) &&
+ !(pRPort->CheckingState & SK_RLMT_PCS_TX)) {
+ /*
+ * Port is marked down (rx), but received a non-BPDU packet.
+ * Bring it up.
+ */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Received on PortDown.\n"))
+
+ pRPort->PortState = SK_RLMT_PS_GOING_UP;
+ pRPort->GuTimeStamp = SkOsGetTime(pAC);
+ Para.Para32[0] = PortNumber;
+ Para.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pRPort->UpTimer, SK_RLMT_PORTUP_TIM_VAL,
+ SKGE_RLMT, SK_RLMT_PORTUP_TIM, Para);
+ pRPort->CheckingState &= ~SK_RLMT_PCS_RX;
+ /* pAC->Rlmt.CheckSwitch = SK_TRUE; */
+ SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
+ } /* PortDown && !SuspectTx */
+ else if (pRPort->CheckingState & SK_RLMT_PCS_RX) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Stop bringing port down.\n"))
+ SkTimerStop(pAC, IoC, &pRPort->DownRxTimer);
+ pRPort->CheckingState &= ~SK_RLMT_PCS_RX;
+ /* pAC->Rlmt.CheckSwitch = SK_TRUE; */
+ SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
+ } /* PortGoingDown */
+
+ return;
+} /* SkRlmtPortReceives */
+
+
+/******************************************************************************
+ *
+ * SkRlmtPacketReceive - receive a packet for closer examination
+ *
+ * Description:
+ * This routine examines a packet more closely than SK_RLMT_LOOKAHEAD.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * Nothing.
+ */
+RLMT_STATIC void SkRlmtPacketReceive(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_MBUF *pMb) /* Received packet */
+{
+#ifdef xDEBUG
+ extern void DumpData(char *p, int size);
+#endif /* DEBUG */
+ int i;
+ unsigned j;
+ SK_U16 PacketType;
+ SK_U32 PortNumber;
+ SK_ADDR_PORT *pAPort;
+ SK_RLMT_PORT *pRPort;
+ SK_RLMT_PACKET *pRPacket;
+ SK_SPTREE_PACKET *pSPacket;
+ SK_EVPARA Para;
+
+ PortNumber = pMb->PortIdx;
+ pAPort = &pAC->Addr.Port[PortNumber];
+ pRPort = &pAC->Rlmt.Port[PortNumber];
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: PortNumber == %d.\n", PortNumber))
+
+ pRPacket = (SK_RLMT_PACKET*)pMb->pData;
+ pSPacket = (SK_SPTREE_PACKET*)pRPacket;
+
+#ifdef xDEBUG
+ DumpData((char *)pRPacket, 32);
+#endif /* DEBUG */
+
+ if ((pRPort->PacketsPerTimeSlot - pRPort->BpduPacketsPerTimeSlot) != 0) {
+ SkRlmtPortReceives(pAC, IoC, PortNumber);
+ }
+
+ /* Check destination address. */
+
+ if (!SK_ADDR_EQUAL(pAPort->CurrentMacAddress.a, pRPacket->DstAddr) &&
+ !SK_ADDR_EQUAL(SkRlmtMcAddr.a, pRPacket->DstAddr) &&
+ !SK_ADDR_EQUAL(BridgeMcAddr.a, pRPacket->DstAddr)) {
+
+ /* Not sent to current MAC or registered MC address => Trash it. */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Not for me.\n"))
+
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ return;
+ }
+ else if (SK_ADDR_EQUAL(pAPort->CurrentMacAddress.a, pRPacket->SrcAddr)) {
+
+ /*
+ * Was sent by same port (may happen during port switching
+ * or in case of duplicate MAC addresses).
+ */
+
+ /*
+ * Check for duplicate address here:
+ * If Packet.Random != My.Random => DupAddr.
+ */
+ for (i = 3; i >= 0; i--) {
+ if (pRPort->Random[i] != pRPacket->Random[i]) {
+ break;
+ }
+ }
+
+ /*
+ * CAUTION: Do not check for duplicate MAC address in RLMT Alive Reply
+ * packets (they have the LLC_COMMAND_RESPONSE_BIT set in
+ * pRPacket->SSap).
+ */
+ if (i >= 0 && pRPacket->DSap == SK_RLMT_DSAP &&
+ pRPacket->Ctrl == SK_RLMT_CTRL &&
+ pRPacket->SSap == SK_RLMT_SSAP &&
+ pRPacket->Indicator[0] == SK_RLMT_INDICATOR0 &&
+ pRPacket->Indicator[1] == SK_RLMT_INDICATOR1 &&
+ pRPacket->Indicator[2] == SK_RLMT_INDICATOR2 &&
+ pRPacket->Indicator[3] == SK_RLMT_INDICATOR3 &&
+ pRPacket->Indicator[4] == SK_RLMT_INDICATOR4 &&
+ pRPacket->Indicator[5] == SK_RLMT_INDICATOR5 &&
+ pRPacket->Indicator[6] == SK_RLMT_INDICATOR6) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Duplicate MAC Address.\n"))
+
+ /* Error Log entry. */
+ SK_ERR_LOG(pAC, SK_ERRCL_COMM, SKERR_RLMT_E006, SKERR_RLMT_E006_MSG);
+ }
+ else {
+ /* Simply trash it. */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Sent by me.\n"))
+ }
+
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ return;
+ }
+
+ /* Check SuspectTx entries. */
+ if (pRPort->PortsSuspect > 0) {
+ for (j = 0; j < pRPort->PortsChecked; j++) {
+ if (pRPort->PortCheck[j].SuspectTx &&
+ SK_ADDR_EQUAL(
+ pRPacket->SrcAddr, pRPort->PortCheck[j].CheckAddr.a)) {
+ pRPort->PortCheck[j].SuspectTx = SK_FALSE;
+ pRPort->PortsSuspect--;
+ break;
+ }
+ }
+ }
+
+ /* Determine type of packet. */
+ if (pRPacket->DSap == SK_RLMT_DSAP &&
+ pRPacket->Ctrl == SK_RLMT_CTRL &&
+ (pRPacket->SSap & ~LLC_COMMAND_RESPONSE_BIT) == SK_RLMT_SSAP &&
+ pRPacket->Indicator[0] == SK_RLMT_INDICATOR0 &&
+ pRPacket->Indicator[1] == SK_RLMT_INDICATOR1 &&
+ pRPacket->Indicator[2] == SK_RLMT_INDICATOR2 &&
+ pRPacket->Indicator[3] == SK_RLMT_INDICATOR3 &&
+ pRPacket->Indicator[4] == SK_RLMT_INDICATOR4 &&
+ pRPacket->Indicator[5] == SK_RLMT_INDICATOR5 &&
+ pRPacket->Indicator[6] == SK_RLMT_INDICATOR6) {
+
+ /* It's an RLMT packet. */
+ PacketType = (SK_U16)((pRPacket->RlmtPacketType[0] << 8) |
+ pRPacket->RlmtPacketType[1]);
+
+ switch (PacketType) {
+ case SK_PACKET_ANNOUNCE: /* Not yet used. */
+#if 0
+ /* Build the check chain. */
+ SkRlmtBuildCheckChain(pAC);
+#endif /* 0 */
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Announce.\n"))
+
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ break;
+
+ case SK_PACKET_ALIVE:
+ if (pRPacket->SSap & LLC_COMMAND_RESPONSE_BIT) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Alive Reply.\n"))
+
+ if (!(pAC->Addr.Port[PortNumber].PromMode & SK_PROM_MODE_LLC) ||
+ SK_ADDR_EQUAL(
+ pRPacket->DstAddr, pAPort->CurrentMacAddress.a)) {
+ /* Obviously we could send something. */
+ if (pRPort->CheckingState & SK_RLMT_PCS_TX) {
+ pRPort->CheckingState &= ~SK_RLMT_PCS_TX;
+ SkTimerStop(pAC, IoC, &pRPort->DownTxTimer);
+ }
+
+ if ((pRPort->PortState == SK_RLMT_PS_DOWN) &&
+ !(pRPort->CheckingState & SK_RLMT_PCS_RX)) {
+ pRPort->PortState = SK_RLMT_PS_GOING_UP;
+ pRPort->GuTimeStamp = SkOsGetTime(pAC);
+
+ SkTimerStop(pAC, IoC, &pRPort->DownTxTimer);
+
+ Para.Para32[0] = PortNumber;
+ Para.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pRPort->UpTimer,
+ SK_RLMT_PORTUP_TIM_VAL, SKGE_RLMT,
+ SK_RLMT_PORTUP_TIM, Para);
+ }
+ }
+
+ /* Mark sending port as alive? */
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ }
+ else { /* Alive Request Packet. */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Alive Request.\n"))
+
+ pRPort->RxHelloCts++;
+
+ /* Answer. */
+ for (i = 0; i < SK_MAC_ADDR_LEN; i++) {
+ pRPacket->DstAddr[i] = pRPacket->SrcAddr[i];
+ pRPacket->SrcAddr[i] =
+ pAC->Addr.Port[PortNumber].CurrentMacAddress.a[i];
+ }
+ pRPacket->SSap |= LLC_COMMAND_RESPONSE_BIT;
+
+ Para.pParaPtr = pMb;
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
+ }
+ break;
+
+ case SK_PACKET_CHECK_TX:
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Check your tx line.\n"))
+
+ /* A port checking us requests us to check our tx line. */
+ pRPort->CheckingState |= SK_RLMT_PCS_TX;
+
+ /* Start PortDownTx timer. */
+ Para.Para32[0] = PortNumber;
+ Para.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pRPort->DownTxTimer,
+ SK_RLMT_PORTDOWN_TIM_VAL, SKGE_RLMT,
+ SK_RLMT_PORTDOWN_TX_TIM, Para);
+
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+
+ if ((Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, PortNumber,
+ SK_PACKET_ALIVE, &pAC->Addr.Port[PortNumber].CurrentMacAddress,
+ &SkRlmtMcAddr)) != NULL) {
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
+ }
+ break;
+
+ case SK_PACKET_ADDR_CHANGED:
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Address Change.\n"))
+
+ /* Build the check chain. */
+ SkRlmtBuildCheckChain(pAC, pRPort->Net->NetNumber);
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ break;
+
+ default:
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Unknown RLMT packet.\n"))
+
+ /* RA;:;: ??? */
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ }
+ }
+ else if (pSPacket->DSap == SK_RLMT_SPT_DSAP &&
+ pSPacket->Ctrl == SK_RLMT_SPT_CTRL &&
+ (pSPacket->SSap & ~LLC_COMMAND_RESPONSE_BIT) == SK_RLMT_SPT_SSAP) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: BPDU Packet.\n"))
+
+ /* Spanning Tree packet. */
+ pRPort->RxSpHelloCts++;
+
+ if (!SK_ADDR_EQUAL(&pSPacket->RootId[2], &pAC->Addr.Net[pAC->Rlmt.
+ Port[PortNumber].Net->NetNumber].CurrentMacAddress.a[0])) {
+ /*
+ * Check segmentation if a new root bridge is set and
+ * the segmentation check is not currently running.
+ */
+ if (!SK_ADDR_EQUAL(&pSPacket->RootId[2], &pRPort->Root.Id[2]) &&
+ (pAC->Rlmt.Port[PortNumber].Net->LinksUp > 1) &&
+ (pAC->Rlmt.Port[PortNumber].Net->RlmtMode & SK_RLMT_CHECK_SEG)
+ != 0 && (pAC->Rlmt.Port[PortNumber].Net->CheckingState &
+ SK_RLMT_RCS_SEG) == 0) {
+ pAC->Rlmt.Port[PortNumber].Net->CheckingState |=
+ SK_RLMT_RCS_START_SEG | SK_RLMT_RCS_SEND_SEG;
+ }
+
+ /* Store tree view of this port. */
+ for (i = 0; i < 8; i++) {
+ pRPort->Root.Id[i] = pSPacket->RootId[i];
+ }
+ pRPort->RootIdSet = SK_TRUE;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_DUMP,
+ ("Root ID %d: %02x %02x %02x %02x %02x %02x %02x %02x.\n",
+ PortNumber,
+ pRPort->Root.Id[0], pRPort->Root.Id[1],
+ pRPort->Root.Id[2], pRPort->Root.Id[3],
+ pRPort->Root.Id[4], pRPort->Root.Id[5],
+ pRPort->Root.Id[6], pRPort->Root.Id[7]))
+ }
+
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ if ((pAC->Rlmt.Port[PortNumber].Net->CheckingState &
+ SK_RLMT_RCS_REPORT_SEG) != 0) {
+ SkRlmtCheckSeg(pAC, IoC, pAC->Rlmt.Port[PortNumber].Net->NetNumber);
+ }
+ }
+ else {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
+ ("SkRlmtPacketReceive: Unknown Packet Type.\n"))
+
+ /* Unknown packet. */
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ }
+ return;
+} /* SkRlmtPacketReceive */
+
+
+/******************************************************************************
+ *
+ * SkRlmtCheckPort - check if a port works
+ *
+ * Description:
+ * This routine checks if a port whose link is up received something
+ * and if it seems to transmit successfully.
+ *
+ * # PortState: PsInit, PsLinkDown, PsDown, PsGoingUp, PsUp
+ * # PortCheckingState (Bitfield): ChkTx, ChkRx, ChkSeg
+ * # RlmtCheckingState (Bitfield): ChkSeg, StartChkSeg, ReportSeg
+ *
+ * if (Rx - RxBpdu == 0) { # No rx.
+ * if (state == PsUp) {
+ * PortCheckingState |= ChkRx
+ * }
+ * if (ModeCheckSeg && (Timeout ==
+ * TO_SHORTEN(RLMT_DEFAULT_TIMEOUT))) {
+ * RlmtCheckingState |= ChkSeg)
+ * PortCheckingState |= ChkSeg
+ * }
+ * NewTimeout = TO_SHORTEN(Timeout)
+ * if (NewTimeout < RLMT_MIN_TIMEOUT) {
+ * NewTimeout = RLMT_MIN_TIMEOUT
+ * PortState = PsDown
+ * ...
+ * }
+ * }
+ * else { # something was received
+ * # Set counter to 0 at LinkDown?
+ * # No - rx may be reported after LinkDown ???
+ * PortCheckingState &= ~ChkRx
+ * NewTimeout = RLMT_DEFAULT_TIMEOUT
+ * if (RxAck == 0) {
+ * possible reasons:
+ * is my tx line bad? --
+ * send RLMT multicast and report
+ * back internally? (only possible
+ * between ports on same adapter)
+ * }
+ * if (RxChk == 0) {
+ * possible reasons:
+ * - tx line of port set to check me
+ * maybe bad
+ * - no other port/adapter available or set
+ * to check me
+ * - adapter checking me has a longer
+ * timeout
+ * ??? anything that can be done here?
+ * }
+ * }
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * New timeout value.
+ */
+RLMT_STATIC SK_U32 SkRlmtCheckPort(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 PortNumber) /* Port to check */
+{
+ unsigned i;
+ SK_U32 NewTimeout;
+ SK_RLMT_PORT *pRPort;
+ SK_EVPARA Para;
+
+ pRPort = &pAC->Rlmt.Port[PortNumber];
+
+ if ((pRPort->PacketsPerTimeSlot - pRPort->BpduPacketsPerTimeSlot) == 0) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SkRlmtCheckPort %d: No (%d) receives in last time slot.\n",
+ PortNumber, pRPort->PacketsPerTimeSlot))
+
+ /*
+ * Check segmentation if there was no receive at least twice
+ * in a row (PortNoRx is already set) and the segmentation
+ * check is not currently running.
+ */
+
+ if (pRPort->PortNoRx && (pAC->Rlmt.Port[PortNumber].Net->LinksUp > 1) &&
+ (pAC->Rlmt.Port[PortNumber].Net->RlmtMode & SK_RLMT_CHECK_SEG) &&
+ !(pAC->Rlmt.Port[PortNumber].Net->CheckingState & SK_RLMT_RCS_SEG)) {
+ pAC->Rlmt.Port[PortNumber].Net->CheckingState |=
+ SK_RLMT_RCS_START_SEG | SK_RLMT_RCS_SEND_SEG;
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SkRlmtCheckPort: PortsSuspect %d, PcsRx %d.\n",
+ pRPort->PortsSuspect, pRPort->CheckingState & SK_RLMT_PCS_RX))
+
+ if (pRPort->PortState != SK_RLMT_PS_DOWN) {
+ NewTimeout = TO_SHORTEN(pAC->Rlmt.Port[PortNumber].Net->TimeoutValue);
+ if (NewTimeout < SK_RLMT_MIN_TO_VAL) {
+ NewTimeout = SK_RLMT_MIN_TO_VAL;
+ }
+
+ if (!(pRPort->CheckingState & SK_RLMT_PCS_RX)) {
+ Para.Para32[0] = PortNumber;
+ pRPort->CheckingState |= SK_RLMT_PCS_RX;
+
+ /*
+ * What shall we do if the port checked by this one receives
+ * our request frames? What's bad - our rx line or his tx line?
+ */
+ Para.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pRPort->DownRxTimer,
+ SK_RLMT_PORTDOWN_TIM_VAL, SKGE_RLMT,
+ SK_RLMT_PORTDOWN_RX_TIM, Para);
+
+ for (i = 0; i < pRPort->PortsChecked; i++) {
+ if (pRPort->PortCheck[i].SuspectTx) {
+ continue;
+ }
+ pRPort->PortCheck[i].SuspectTx = SK_TRUE;
+ pRPort->PortsSuspect++;
+ if ((Para.pParaPtr =
+ SkRlmtBuildPacket(pAC, IoC, PortNumber, SK_PACKET_CHECK_TX,
+ &pAC->Addr.Port[PortNumber].CurrentMacAddress,
+ &pRPort->PortCheck[i].CheckAddr)) != NULL) {
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
+ }
+ }
+ }
+ }
+ else { /* PortDown -- or all partners suspect. */
+ NewTimeout = SK_RLMT_DEF_TO_VAL;
+ }
+ pRPort->PortNoRx = SK_TRUE;
+ }
+ else { /* A non-BPDU packet was received. */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SkRlmtCheckPort %d: %d (%d) receives in last time slot.\n",
+ PortNumber,
+ pRPort->PacketsPerTimeSlot - pRPort->BpduPacketsPerTimeSlot,
+ pRPort->PacketsPerTimeSlot))
+
+ SkRlmtPortReceives(pAC, IoC, PortNumber);
+ if (pAC->Rlmt.CheckSwitch) {
+ SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
+ }
+
+ NewTimeout = SK_RLMT_DEF_TO_VAL;
+ }
+
+ return (NewTimeout);
+} /* SkRlmtCheckPort */
+
+
+/******************************************************************************
+ *
+ * SkRlmtSelectBcRx - select new active port, criteria 1 (CLP)
+ *
+ * Description:
+ * This routine selects the port that received a broadcast frame
+ * substantially later than all other ports.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * SK_BOOL
+ */
+RLMT_STATIC SK_BOOL SkRlmtSelectBcRx(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 Active, /* Active port */
+SK_U32 PrefPort, /* Preferred port */
+SK_U32 *pSelect) /* New active port */
+{
+ SK_U64 BcTimeStamp;
+ SK_U32 i;
+ SK_BOOL PortFound;
+
+ BcTimeStamp = 0; /* Not totally necessary, but feeling better. */
+ PortFound = SK_FALSE;
+
+ /* Select port with the latest TimeStamp. */
+ for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("TimeStamp Port %d (Down: %d, NoRx: %d): %08x %08x.\n",
+ i,
+ pAC->Rlmt.Port[i].PortDown, pAC->Rlmt.Port[i].PortNoRx,
+ *((SK_U32*)(&pAC->Rlmt.Port[i].BcTimeStamp) + OFFS_HI32),
+ *((SK_U32*)(&pAC->Rlmt.Port[i].BcTimeStamp) + OFFS_LO32)))
+
+ if (!pAC->Rlmt.Port[i].PortDown && !pAC->Rlmt.Port[i].PortNoRx) {
+ if (!PortFound || pAC->Rlmt.Port[i].BcTimeStamp > BcTimeStamp) {
+ BcTimeStamp = pAC->Rlmt.Port[i].BcTimeStamp;
+ *pSelect = i;
+ PortFound = SK_TRUE;
+ }
+ }
+ }
+
+ if (PortFound) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Port %d received the last broadcast.\n", *pSelect))
+
+ /* Look if another port's time stamp is similar. */
+ for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+ if (i == *pSelect) {
+ continue;
+ }
+ if (!pAC->Rlmt.Port[i].PortDown && !pAC->Rlmt.Port[i].PortNoRx &&
+ (pAC->Rlmt.Port[i].BcTimeStamp >
+ BcTimeStamp - SK_RLMT_BC_DELTA ||
+ pAC->Rlmt.Port[i].BcTimeStamp +
+ SK_RLMT_BC_DELTA > BcTimeStamp)) {
+ PortFound = SK_FALSE;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Port %d received a broadcast at a similar time.\n", i))
+ break;
+ }
+ }
+ }
+
+#ifdef DEBUG
+ if (PortFound) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SELECT_BCRX found Port %d receiving the substantially "
+ "latest broadcast (%u).\n",
+ *pSelect,
+ BcTimeStamp - pAC->Rlmt.Port[1 - *pSelect].BcTimeStamp))
+ }
+#endif /* DEBUG */
+
+ return (PortFound);
+} /* SkRlmtSelectBcRx */
+
+
+/******************************************************************************
+ *
+ * SkRlmtSelectNotSuspect - select new active port, criteria 2 (CLP)
+ *
+ * Description:
+ * This routine selects a good port (it is PortUp && !SuspectRx).
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * SK_BOOL
+ */
+RLMT_STATIC SK_BOOL SkRlmtSelectNotSuspect(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 Active, /* Active port */
+SK_U32 PrefPort, /* Preferred port */
+SK_U32 *pSelect) /* New active port */
+{
+ SK_U32 i;
+ SK_BOOL PortFound;
+
+ PortFound = SK_FALSE;
+
+ /* Select first port that is PortUp && !SuspectRx. */
+ for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+ if (!pAC->Rlmt.Port[i].PortDown &&
+ !(pAC->Rlmt.Port[i].CheckingState & SK_RLMT_PCS_RX)) {
+ *pSelect = i;
+ if (!pAC->Rlmt.Port[Active].PortDown &&
+ !(pAC->Rlmt.Port[Active].CheckingState & SK_RLMT_PCS_RX)) {
+ *pSelect = Active;
+ }
+ if (!pAC->Rlmt.Port[PrefPort].PortDown &&
+ !(pAC->Rlmt.Port[PrefPort].CheckingState & SK_RLMT_PCS_RX)) {
+ *pSelect = PrefPort;
+ }
+ PortFound = SK_TRUE;
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SELECT_NOTSUSPECT found Port %d up and not check RX.\n",
+ *pSelect))
+ break;
+ }
+ }
+ return (PortFound);
+} /* SkRlmtSelectNotSuspect */
+
+
+/******************************************************************************
+ *
+ * SkRlmtSelectUp - select new active port, criteria 3, 4 (CLP)
+ *
+ * Description:
+ * This routine selects a port that is up.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * SK_BOOL
+ */
+RLMT_STATIC SK_BOOL SkRlmtSelectUp(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 Active, /* Active port */
+SK_U32 PrefPort, /* Preferred port */
+SK_U32 *pSelect, /* New active port */
+SK_BOOL AutoNegDone) /* Successfully auto-negotiated? */
+{
+ SK_U32 i;
+ SK_BOOL PortFound;
+
+ PortFound = SK_FALSE;
+
+ /* Select first port that is PortUp. */
+ for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+ if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_UP &&
+ pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {
+ *pSelect = i;
+ if (pAC->Rlmt.Port[Active].PortState == SK_RLMT_PS_UP &&
+ pAC->GIni.GP[Active].PAutoNegFail != AutoNegDone) {
+ *pSelect = Active;
+ }
+ if (pAC->Rlmt.Port[PrefPort].PortState == SK_RLMT_PS_UP &&
+ pAC->GIni.GP[PrefPort].PAutoNegFail != AutoNegDone) {
+ *pSelect = PrefPort;
+ }
+ PortFound = SK_TRUE;
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SELECT_UP found Port %d up.\n", *pSelect))
+ break;
+ }
+ }
+ return (PortFound);
+} /* SkRlmtSelectUp */
+
+
+/******************************************************************************
+ *
+ * SkRlmtSelectGoingUp - select new active port, criteria 5, 6 (CLP)
+ *
+ * Description:
+ * This routine selects the port that is going up for the longest time.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * SK_BOOL
+ */
+RLMT_STATIC SK_BOOL SkRlmtSelectGoingUp(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 Active, /* Active port */
+SK_U32 PrefPort, /* Preferred port */
+SK_U32 *pSelect, /* New active port */
+SK_BOOL AutoNegDone) /* Successfully auto-negotiated? */
+{
+ SK_U64 GuTimeStamp;
+ SK_U32 i;
+ SK_BOOL PortFound;
+
+ GuTimeStamp = 0;
+ PortFound = SK_FALSE;
+
+ /* Select port that is PortGoingUp for the longest time. */
+ for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+ if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_GOING_UP &&
+ pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {
+ GuTimeStamp = pAC->Rlmt.Port[i].GuTimeStamp;
+ *pSelect = i;
+ PortFound = SK_TRUE;
+ break;
+ }
+ }
+
+ if (!PortFound) {
+ return (SK_FALSE);
+ }
+
+ for (i = *pSelect + 1; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+ if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_GOING_UP &&
+ pAC->Rlmt.Port[i].GuTimeStamp < GuTimeStamp &&
+ pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {
+ GuTimeStamp = pAC->Rlmt.Port[i].GuTimeStamp;
+ *pSelect = i;
+ }
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SELECT_GOINGUP found Port %d going up.\n", *pSelect))
+ return (SK_TRUE);
+} /* SkRlmtSelectGoingUp */
+
+
+/******************************************************************************
+ *
+ * SkRlmtSelectDown - select new active port, criteria 7, 8 (CLP)
+ *
+ * Description:
+ * This routine selects a port that is down.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * SK_BOOL
+ */
+RLMT_STATIC SK_BOOL SkRlmtSelectDown(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 Active, /* Active port */
+SK_U32 PrefPort, /* Preferred port */
+SK_U32 *pSelect, /* New active port */
+SK_BOOL AutoNegDone) /* Successfully auto-negotiated? */
+{
+ SK_U32 i;
+ SK_BOOL PortFound;
+
+ PortFound = SK_FALSE;
+
+ /* Select first port that is PortDown. */
+ for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+ if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_DOWN &&
+ pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {
+ *pSelect = i;
+ if (pAC->Rlmt.Port[Active].PortState == SK_RLMT_PS_DOWN &&
+ pAC->GIni.GP[Active].PAutoNegFail != AutoNegDone) {
+ *pSelect = Active;
+ }
+ if (pAC->Rlmt.Port[PrefPort].PortState == SK_RLMT_PS_DOWN &&
+ pAC->GIni.GP[PrefPort].PAutoNegFail != AutoNegDone) {
+ *pSelect = PrefPort;
+ }
+ PortFound = SK_TRUE;
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SELECT_DOWN found Port %d down.\n", *pSelect))
+ break;
+ }
+ }
+ return (PortFound);
+} /* SkRlmtSelectDown */
+
+
+/******************************************************************************
+ *
+ * SkRlmtCheckSwitch - select new active port and switch to it
+ *
+ * Description:
+ * This routine decides which port should be the active one and queues
+ * port switching if necessary.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * Nothing.
+ */
+RLMT_STATIC void SkRlmtCheckSwitch(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 NetIdx) /* Net index */
+{
+ SK_EVPARA Para;
+ SK_U32 Active;
+ SK_U32 PrefPort;
+ SK_U32 i;
+ SK_BOOL PortFound;
+
+ Active = pAC->Rlmt.Net[NetIdx].ActivePort; /* Index of active port. */
+ PrefPort = pAC->Rlmt.Net[NetIdx].PrefPort; /* Index of preferred port. */
+ PortFound = SK_FALSE;
+ pAC->Rlmt.CheckSwitch = SK_FALSE;
+
+#if 0 /* RW 2001/10/18 - active port becomes always prefered one */
+ if (pAC->Rlmt.Net[NetIdx].Preference == 0xFFFFFFFF) { /* Automatic */
+ /* disable auto-fail back */
+ PrefPort = Active;
+ }
+#endif
+
+ if (pAC->Rlmt.Net[NetIdx].LinksUp == 0) {
+ /* Last link went down - shut down the net. */
+ pAC->Rlmt.Net[NetIdx].RlmtState = SK_RLMT_RS_NET_DOWN;
+ Para.Para32[0] = SK_RLMT_NET_DOWN_TEMP;
+ Para.Para32[1] = NetIdx;
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_NET_DOWN, Para);
+
+ Para.Para32[0] = pAC->Rlmt.Net[NetIdx].
+ Port[pAC->Rlmt.Net[NetIdx].ActivePort]->PortNumber;
+ Para.Para32[1] = NetIdx;
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_DOWN, Para);
+ return;
+ } /* pAC->Rlmt.LinksUp == 0 */
+ else if (pAC->Rlmt.Net[NetIdx].LinksUp == 1 &&
+ pAC->Rlmt.Net[NetIdx].RlmtState == SK_RLMT_RS_NET_DOWN) {
+ /* First link came up - get the net up. */
+ pAC->Rlmt.Net[NetIdx].RlmtState = SK_RLMT_RS_NET_UP;
+
+ /*
+ * If pAC->Rlmt.ActivePort != Para.Para32[0],
+ * the DRV switches to the port that came up.
+ */
+ for (i = 0; i < pAC->Rlmt.Net[NetIdx].NumPorts; i++) {
+ if (!pAC->Rlmt.Net[NetIdx].Port[i]->LinkDown) {
+ if (!pAC->Rlmt.Net[NetIdx].Port[Active]->LinkDown) {
+ i = Active;
+ }
+ if (!pAC->Rlmt.Net[NetIdx].Port[PrefPort]->LinkDown) {
+ i = PrefPort;
+ }
+ PortFound = SK_TRUE;
+ break;
+ }
+ }
+
+ if (PortFound) {
+ Para.Para32[0] = pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber;
+ Para.Para32[1] = NetIdx;
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_UP, Para);
+
+ pAC->Rlmt.Net[NetIdx].ActivePort = i;
+ Para.Para32[0] = pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber;
+ Para.Para32[1] = NetIdx;
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_NET_UP, Para);
+
+ if ((pAC->Rlmt.Net[NetIdx].RlmtMode & SK_RLMT_TRANSPARENT) == 0 &&
+ (Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC,
+ pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber,
+ SK_PACKET_ANNOUNCE, &pAC->Addr.Net[NetIdx].
+ CurrentMacAddress, &SkRlmtMcAddr)) != NULL) {
+ /*
+ * Send announce packet to RLMT multicast address to force
+ * switches to learn the new location of the logical MAC address.
+ */
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
+ }
+ }
+ else {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E007, SKERR_RLMT_E007_MSG);
+ }
+
+ return;
+ } /* LinksUp == 1 && RlmtState == SK_RLMT_RS_NET_DOWN */
+ else { /* Cannot be reached in dual-net mode. */
+ Para.Para32[0] = Active;
+
+ /*
+ * Preselection:
+ * If RLMT Mode != CheckLinkState
+ * select port that received a broadcast frame substantially later
+ * than all other ports
+ * else select first port that is not SuspectRx
+ * else select first port that is PortUp
+ * else select port that is PortGoingUp for the longest time
+ * else select first port that is PortDown
+ * else stop.
+ *
+ * For the preselected port:
+ * If ActivePort is equal in quality, select ActivePort.
+ *
+ * If PrefPort is equal in quality, select PrefPort.
+ *
+ * If ActivePort != SelectedPort,
+ * If old ActivePort is LinkDown,
+ * SwitchHard
+ * else
+ * SwitchSoft
+ */
+ /* check of ChgBcPrio flag added */
+ if ((pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) &&
+ (!pAC->Rlmt.Net[0].ChgBcPrio)) {
+
+ if (!PortFound) {
+ PortFound = SkRlmtSelectBcRx(
+ pAC, IoC, Active, PrefPort, &Para.Para32[1]);
+ }
+
+ if (!PortFound) {
+ PortFound = SkRlmtSelectNotSuspect(
+ pAC, IoC, Active, PrefPort, &Para.Para32[1]);
+ }
+ } /* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */
+
+ /* with changed priority for last broadcast received */
+ if ((pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) &&
+ (pAC->Rlmt.Net[0].ChgBcPrio)) {
+ if (!PortFound) {
+ PortFound = SkRlmtSelectNotSuspect(
+ pAC, IoC, Active, PrefPort, &Para.Para32[1]);
+ }
+
+ if (!PortFound) {
+ PortFound = SkRlmtSelectBcRx(
+ pAC, IoC, Active, PrefPort, &Para.Para32[1]);
+ }
+ } /* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */
+
+ if (!PortFound) {
+ PortFound = SkRlmtSelectUp(
+ pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);
+ }
+
+ if (!PortFound) {
+ PortFound = SkRlmtSelectUp(
+ pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);
+ }
+
+ if (!PortFound) {
+ PortFound = SkRlmtSelectGoingUp(
+ pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);
+ }
+
+ if (!PortFound) {
+ PortFound = SkRlmtSelectGoingUp(
+ pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);
+ }
+
+ if (pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) {
+ if (!PortFound) {
+ PortFound = SkRlmtSelectDown(pAC, IoC,
+ Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);
+ }
+
+ if (!PortFound) {
+ PortFound = SkRlmtSelectDown(pAC, IoC,
+ Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);
+ }
+ } /* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */
+
+ if (PortFound) {
+
+ if (Para.Para32[1] != Active) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Active: %d, Para1: %d.\n", Active, Para.Para32[1]))
+ pAC->Rlmt.Net[NetIdx].ActivePort = Para.Para32[1];
+ Para.Para32[0] = pAC->Rlmt.Net[NetIdx].
+ Port[Para.Para32[0]]->PortNumber;
+ Para.Para32[1] = pAC->Rlmt.Net[NetIdx].
+ Port[Para.Para32[1]]->PortNumber;
+ SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[1], SK_LED_ACTIVE);
+ if (pAC->Rlmt.Port[Active].LinkDown) {
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_HARD, Para);
+ }
+ else {
+ SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_STANDBY);
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_SOFT, Para);
+ }
+ Para.Para32[1] = NetIdx;
+ Para.Para32[0] =
+ pAC->Rlmt.Net[NetIdx].Port[Para.Para32[0]]->PortNumber;
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_DOWN, Para);
+ Para.Para32[0] = pAC->Rlmt.Net[NetIdx].
+ Port[pAC->Rlmt.Net[NetIdx].ActivePort]->PortNumber;
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_UP, Para);
+ if ((pAC->Rlmt.Net[NetIdx].RlmtMode & SK_RLMT_TRANSPARENT) == 0 &&
+ (Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, Para.Para32[0],
+ SK_PACKET_ANNOUNCE, &pAC->Addr.Net[NetIdx].CurrentMacAddress,
+ &SkRlmtMcAddr)) != NULL) {
+ /*
+ * Send announce packet to RLMT multicast address to force
+ * switches to learn the new location of the logical
+ * MAC address.
+ */
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
+ } /* (Para.pParaPtr = SkRlmtBuildPacket(...)) != NULL */
+ } /* Para.Para32[1] != Active */
+ } /* PortFound */
+ else {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E004, SKERR_RLMT_E004_MSG);
+ }
+ } /* LinksUp > 1 || LinksUp == 1 && RlmtState != SK_RLMT_RS_NET_DOWN */
+ return;
+} /* SkRlmtCheckSwitch */
+
+
+/******************************************************************************
+ *
+ * SkRlmtCheckSeg - Report if segmentation is detected
+ *
+ * Description:
+ * This routine checks if the ports see different root bridges and reports
+ * segmentation in such a case.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * Nothing.
+ */
+RLMT_STATIC void SkRlmtCheckSeg(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 NetIdx) /* Net number */
+{
+ SK_EVPARA Para;
+ SK_RLMT_NET *pNet;
+ SK_U32 i, j;
+ SK_BOOL Equal;
+
+ pNet = &pAC->Rlmt.Net[NetIdx];
+ pNet->RootIdSet = SK_FALSE;
+ Equal = SK_TRUE;
+
+ for (i = 0; i < pNet->NumPorts; i++) {
+ if (pNet->Port[i]->LinkDown || !pNet->Port[i]->RootIdSet) {
+ continue;
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_DUMP,
+ ("Root ID %d: %02x %02x %02x %02x %02x %02x %02x %02x.\n", i,
+ pNet->Port[i]->Root.Id[0], pNet->Port[i]->Root.Id[1],
+ pNet->Port[i]->Root.Id[2], pNet->Port[i]->Root.Id[3],
+ pNet->Port[i]->Root.Id[4], pNet->Port[i]->Root.Id[5],
+ pNet->Port[i]->Root.Id[6], pNet->Port[i]->Root.Id[7]))
+
+ if (!pNet->RootIdSet) {
+ pNet->Root = pNet->Port[i]->Root;
+ pNet->RootIdSet = SK_TRUE;
+ continue;
+ }
+
+ for (j = 0; j < 8; j ++) {
+ Equal &= pNet->Port[i]->Root.Id[j] == pNet->Root.Id[j];
+ if (!Equal) {
+ break;
+ }
+ }
+
+ if (!Equal) {
+ SK_ERR_LOG(pAC, SK_ERRCL_COMM, SKERR_RLMT_E005, SKERR_RLMT_E005_MSG);
+ Para.Para32[0] = NetIdx;
+ Para.Para32[1] = (SK_U32)-1;
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_SEGMENTATION, Para);
+
+ pNet->CheckingState &= ~SK_RLMT_RCS_REPORT_SEG;
+
+ /* 2000-03-06 RA: New. */
+ Para.Para32[0] = NetIdx;
+ Para.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pNet->SegTimer, SK_RLMT_SEG_TO_VAL,
+ SKGE_RLMT, SK_RLMT_SEG_TIM, Para);
+ break;
+ }
+ } /* for (i = 0; i < pNet->NumPorts; i++) */
+
+ /* 2000-03-06 RA: Moved here. */
+ /* Segmentation check not running anymore. */
+ pNet->CheckingState &= ~SK_RLMT_RCS_SEG;
+
+} /* SkRlmtCheckSeg */
+
+
+/******************************************************************************
+ *
+ * SkRlmtPortStart - initialize port variables and start port
+ *
+ * Description:
+ * This routine initializes a port's variables and issues a PORT_START
+ * to the HWAC module. This handles retries if the start fails or the
+ * link eventually goes down.
+ *
+ * Context:
+ * runtime, pageable?
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtPortStart(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 PortNumber) /* Port number */
+{
+ SK_EVPARA Para;
+
+ pAC->Rlmt.Port[PortNumber].PortState = SK_RLMT_PS_LINK_DOWN;
+ pAC->Rlmt.Port[PortNumber].PortStarted = SK_TRUE;
+ pAC->Rlmt.Port[PortNumber].LinkDown = SK_TRUE;
+ pAC->Rlmt.Port[PortNumber].PortDown = SK_TRUE;
+ pAC->Rlmt.Port[PortNumber].CheckingState = 0;
+ pAC->Rlmt.Port[PortNumber].RootIdSet = SK_FALSE;
+ Para.Para32[0] = PortNumber;
+ Para.Para32[1] = (SK_U32)-1;
+ SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
+} /* SkRlmtPortStart */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtPortStartTim - PORT_START_TIM
+ *
+ * Description:
+ * This routine handles PORT_START_TIM events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtPortStartTim(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 -1 */
+{
+ SK_U32 i;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTSTART_TIMEOUT Port %d Event BEGIN.\n", Para.Para32[0]))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTSTART_TIMEOUT Event EMPTY.\n"))
+ return;
+ }
+
+ /*
+ * Used to start non-preferred ports if the preferred one
+ * does not come up.
+ * This timeout needs only be set when starting the first
+ * (preferred) port.
+ */
+ if (pAC->Rlmt.Port[Para.Para32[0]].LinkDown) {
+ /* PORT_START failed. */
+ for (i = 0; i < pAC->Rlmt.Port[Para.Para32[0]].Net->NumPorts; i++) {
+ if (!pAC->Rlmt.Port[Para.Para32[0]].Net->Port[i]->PortStarted) {
+ SkRlmtPortStart(pAC, IoC,
+ pAC->Rlmt.Port[Para.Para32[0]].Net->Port[i]->PortNumber);
+ }
+ }
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTSTART_TIMEOUT Event END.\n"))
+} /* SkRlmtEvtPortStartTim */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtLinkUp - LINK_UP
+ *
+ * Description:
+ * This routine handles LLINK_UP events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtLinkUp(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 Undefined */
+{
+ SK_U32 i;
+ SK_RLMT_PORT *pRPort;
+ SK_EVPARA Para2;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_LINK_UP Port %d Event BEGIN.\n", Para.Para32[0]))
+
+ pRPort = &pAC->Rlmt.Port[Para.Para32[0]];
+ if (!pRPort->PortStarted) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E008, SKERR_RLMT_E008_MSG);
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_LINK_UP Event EMPTY.\n"))
+ return;
+ }
+
+ if (!pRPort->LinkDown) {
+ /* RA;:;: Any better solution? */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_LINK_UP Event EMPTY.\n"))
+ return;
+ }
+
+ SkTimerStop(pAC, IoC, &pRPort->UpTimer);
+ SkTimerStop(pAC, IoC, &pRPort->DownRxTimer);
+ SkTimerStop(pAC, IoC, &pRPort->DownTxTimer);
+
+ /* Do something if timer already fired? */
+
+ pRPort->LinkDown = SK_FALSE;
+ pRPort->PortState = SK_RLMT_PS_GOING_UP;
+ pRPort->GuTimeStamp = SkOsGetTime(pAC);
+ pRPort->BcTimeStamp = 0;
+ pRPort->Net->LinksUp++;
+ if (pRPort->Net->LinksUp == 1) {
+ SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_ACTIVE);
+ }
+ else {
+ SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_STANDBY);
+ }
+
+ for (i = 0; i < pRPort->Net->NumPorts; i++) {
+ if (!pRPort->Net->Port[i]->PortStarted) {
+ SkRlmtPortStart(pAC, IoC, pRPort->Net->Port[i]->PortNumber);
+ }
+ }
+
+ SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
+
+ if (pRPort->Net->LinksUp >= 2) {
+ if (pRPort->Net->RlmtMode & SK_RLMT_CHECK_LOC_LINK) {
+ /* Build the check chain. */
+ SkRlmtBuildCheckChain(pAC, pRPort->Net->NetNumber);
+ }
+ }
+
+ /* If the first link comes up, start the periodical RLMT timeout. */
+ if (pRPort->Net->NumPorts > 1 && pRPort->Net->LinksUp == 1 &&
+ (pRPort->Net->RlmtMode & SK_RLMT_CHECK_OTHERS) != 0) {
+ Para2.Para32[0] = pRPort->Net->NetNumber;
+ Para2.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pRPort->Net->LocTimer,
+ pRPort->Net->TimeoutValue, SKGE_RLMT, SK_RLMT_TIM, Para2);
+ }
+
+ Para2 = Para;
+ Para2.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pRPort->UpTimer, SK_RLMT_PORTUP_TIM_VAL,
+ SKGE_RLMT, SK_RLMT_PORTUP_TIM, Para2);
+
+ /* Later: if (pAC->Rlmt.RlmtMode & SK_RLMT_CHECK_LOC_LINK) && */
+ if ((pRPort->Net->RlmtMode & SK_RLMT_TRANSPARENT) == 0 &&
+ (pRPort->Net->RlmtMode & SK_RLMT_CHECK_LINK) != 0 &&
+ (Para2.pParaPtr =
+ SkRlmtBuildPacket(pAC, IoC, Para.Para32[0], SK_PACKET_ANNOUNCE,
+ &pAC->Addr.Port[Para.Para32[0]].CurrentMacAddress, &SkRlmtMcAddr)
+ ) != NULL) {
+ /* Send "new" packet to RLMT multicast address. */
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para2);
+ }
+
+ if (pRPort->Net->RlmtMode & SK_RLMT_CHECK_SEG) {
+ if ((Para2.pParaPtr =
+ SkRlmtBuildSpanningTreePacket(pAC, IoC, Para.Para32[0])) != NULL) {
+ pAC->Rlmt.Port[Para.Para32[0]].RootIdSet = SK_FALSE;
+ pRPort->Net->CheckingState |=
+ SK_RLMT_RCS_SEG | SK_RLMT_RCS_REPORT_SEG;
+
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para2);
+
+ Para.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pRPort->Net->SegTimer,
+ SK_RLMT_SEG_TO_VAL, SKGE_RLMT, SK_RLMT_SEG_TIM, Para);
+ }
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_LINK_UP Event END.\n"))
+} /* SkRlmtEvtLinkUp */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtPortUpTim - PORT_UP_TIM
+ *
+ * Description:
+ * This routine handles PORT_UP_TIM events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtPortUpTim(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 -1 */
+{
+ SK_RLMT_PORT *pRPort;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTUP_TIM Port %d Event BEGIN.\n", Para.Para32[0]))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTUP_TIM Event EMPTY.\n"))
+ return;
+ }
+
+ pRPort = &pAC->Rlmt.Port[Para.Para32[0]];
+ if (pRPort->LinkDown || (pRPort->PortState == SK_RLMT_PS_UP)) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTUP_TIM Port %d Event EMPTY.\n", Para.Para32[0]))
+ return;
+ }
+
+ pRPort->PortDown = SK_FALSE;
+ pRPort->PortState = SK_RLMT_PS_UP;
+ pRPort->Net->PortsUp++;
+ if (pRPort->Net->RlmtState != SK_RLMT_RS_INIT) {
+ if (pAC->Rlmt.NumNets <= 1) {
+ SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
+ }
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_PORT_UP, Para);
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTUP_TIM Event END.\n"))
+} /* SkRlmtEvtPortUpTim */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtPortDownTim - PORT_DOWN_*
+ *
+ * Description:
+ * This routine handles PORT_DOWN_* events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtPortDownX(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 Event, /* Event code */
+SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 -1 */
+{
+ SK_RLMT_PORT *pRPort;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTDOWN* Port %d Event (%d) BEGIN.\n",
+ Para.Para32[0], Event))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTDOWN* Event EMPTY.\n"))
+ return;
+ }
+
+ pRPort = &pAC->Rlmt.Port[Para.Para32[0]];
+ if (!pRPort->PortStarted || (Event == SK_RLMT_PORTDOWN_TX_TIM &&
+ !(pRPort->CheckingState & SK_RLMT_PCS_TX))) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTDOWN* Event (%d) EMPTY.\n", Event))
+ return;
+ }
+
+ /* Stop port's timers. */
+ SkTimerStop(pAC, IoC, &pRPort->UpTimer);
+ SkTimerStop(pAC, IoC, &pRPort->DownRxTimer);
+ SkTimerStop(pAC, IoC, &pRPort->DownTxTimer);
+
+ if (pRPort->PortState != SK_RLMT_PS_LINK_DOWN) {
+ pRPort->PortState = SK_RLMT_PS_DOWN;
+ }
+
+ if (!pRPort->PortDown) {
+ pRPort->Net->PortsUp--;
+ pRPort->PortDown = SK_TRUE;
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_PORT_DOWN, Para);
+ }
+
+ pRPort->PacketsPerTimeSlot = 0;
+ /* pRPort->DataPacketsPerTimeSlot = 0; */
+ pRPort->BpduPacketsPerTimeSlot = 0;
+ pRPort->BcTimeStamp = 0;
+
+ /*
+ * RA;:;: To be checked:
+ * - actions at RLMT_STOP: We should not switch anymore.
+ */
+ if (pRPort->Net->RlmtState != SK_RLMT_RS_INIT) {
+ if (Para.Para32[0] ==
+ pRPort->Net->Port[pRPort->Net->ActivePort]->PortNumber) {
+ /* Active Port went down. */
+ SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
+ }
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORTDOWN* Event (%d) END.\n", Event))
+} /* SkRlmtEvtPortDownX */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtLinkDown - LINK_DOWN
+ *
+ * Description:
+ * This routine handles LINK_DOWN events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtLinkDown(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 Undefined */
+{
+ SK_RLMT_PORT *pRPort;
+
+ pRPort = &pAC->Rlmt.Port[Para.Para32[0]];
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_LINK_DOWN Port %d Event BEGIN.\n", Para.Para32[0]))
+
+ if (!pAC->Rlmt.Port[Para.Para32[0]].LinkDown) {
+ pRPort->Net->LinksUp--;
+ pRPort->LinkDown = SK_TRUE;
+ pRPort->PortState = SK_RLMT_PS_LINK_DOWN;
+ SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_OFF);
+
+ if ((pRPort->Net->RlmtMode & SK_RLMT_CHECK_LOC_LINK) != 0) {
+ /* Build the check chain. */
+ SkRlmtBuildCheckChain(pAC, pRPort->Net->NetNumber);
+ }
+
+ /* Ensure that port is marked down. */
+ Para.Para32[1] = -1;
+ (void)SkRlmtEvent(pAC, IoC, SK_RLMT_PORTDOWN, Para);
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_LINK_DOWN Event END.\n"))
+} /* SkRlmtEvtLinkDown */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtPortAddr - PORT_ADDR
+ *
+ * Description:
+ * This routine handles PORT_ADDR events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtPortAddr(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 -1 */
+{
+ SK_U32 i, j;
+ SK_RLMT_PORT *pRPort;
+ SK_MAC_ADDR *pOldMacAddr;
+ SK_MAC_ADDR *pNewMacAddr;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORT_ADDR Port %d Event BEGIN.\n", Para.Para32[0]))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORT_ADDR Event EMPTY.\n"))
+ return;
+ }
+
+ /* Port's physical MAC address changed. */
+ pOldMacAddr = &pAC->Addr.Port[Para.Para32[0]].PreviousMacAddress;
+ pNewMacAddr = &pAC->Addr.Port[Para.Para32[0]].CurrentMacAddress;
+
+ /*
+ * NOTE: This is not scalable for solutions where ports are
+ * checked remotely. There, we need to send an RLMT
+ * address change packet - and how do we ensure delivery?
+ */
+ for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
+ pRPort = &pAC->Rlmt.Port[i];
+ for (j = 0; j < pRPort->PortsChecked; j++) {
+ if (SK_ADDR_EQUAL(
+ pRPort->PortCheck[j].CheckAddr.a, pOldMacAddr->a)) {
+ pRPort->PortCheck[j].CheckAddr = *pNewMacAddr;
+ }
+ }
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PORT_ADDR Event END.\n"))
+} /* SkRlmtEvtPortAddr */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtStart - START
+ *
+ * Description:
+ * This routine handles START events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtStart(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
+{
+ SK_EVPARA Para2;
+ SK_U32 PortIdx;
+ SK_U32 PortNumber;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_START Net %d Event BEGIN.\n", Para.Para32[0]))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_START Event EMPTY.\n"))
+ return;
+ }
+
+ if (Para.Para32[0] >= pAC->Rlmt.NumNets) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad NetNumber %d.\n", Para.Para32[0]))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_START Event EMPTY.\n"))
+ return;
+ }
+
+ if (pAC->Rlmt.Net[Para.Para32[0]].RlmtState != SK_RLMT_RS_INIT) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_START Event EMPTY.\n"))
+ return;
+ }
+
+ if (pAC->Rlmt.NetsStarted >= pAC->Rlmt.NumNets) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("All nets should have been started.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_START Event EMPTY.\n"))
+ return;
+ }
+
+ if (pAC->Rlmt.Net[Para.Para32[0]].PrefPort >=
+ pAC->Rlmt.Net[Para.Para32[0]].NumPorts) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E009, SKERR_RLMT_E009_MSG);
+
+ /* Change PrefPort to internal default. */
+ Para2.Para32[0] = 0xFFFFFFFF;
+ Para2.Para32[1] = Para.Para32[0];
+ (void)SkRlmtEvent(pAC, IoC, SK_RLMT_PREFPORT_CHANGE, Para2);
+ }
+
+ PortIdx = pAC->Rlmt.Net[Para.Para32[0]].PrefPort;
+ PortNumber = pAC->Rlmt.Net[Para.Para32[0]].Port[PortIdx]->PortNumber;
+
+ pAC->Rlmt.Net[Para.Para32[0]].LinksUp = 0;
+ pAC->Rlmt.Net[Para.Para32[0]].PortsUp = 0;
+ pAC->Rlmt.Net[Para.Para32[0]].CheckingState = 0;
+ pAC->Rlmt.Net[Para.Para32[0]].RlmtState = SK_RLMT_RS_NET_DOWN;
+
+ /* Start preferred port. */
+ SkRlmtPortStart(pAC, IoC, PortNumber);
+
+ /* Start Timer (for first port only). */
+ Para2.Para32[0] = PortNumber;
+ Para2.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pAC->Rlmt.Port[PortNumber].UpTimer,
+ SK_RLMT_PORTSTART_TIM_VAL, SKGE_RLMT, SK_RLMT_PORTSTART_TIM, Para2);
+
+ pAC->Rlmt.NetsStarted++;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_START Event END.\n"))
+} /* SkRlmtEvtStart */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtStop - STOP
+ *
+ * Description:
+ * This routine handles STOP events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtStop(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
+{
+ SK_EVPARA Para2;
+ SK_U32 PortNumber;
+ SK_U32 i;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STOP Net %d Event BEGIN.\n", Para.Para32[0]))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STOP Event EMPTY.\n"))
+ return;
+ }
+
+ if (Para.Para32[0] >= pAC->Rlmt.NumNets) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad NetNumber %d.\n", Para.Para32[0]))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STOP Event EMPTY.\n"))
+ return;
+ }
+
+ if (pAC->Rlmt.Net[Para.Para32[0]].RlmtState == SK_RLMT_RS_INIT) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STOP Event EMPTY.\n"))
+ return;
+ }
+
+ if (pAC->Rlmt.NetsStarted == 0) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("All nets are stopped.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STOP Event EMPTY.\n"))
+ return;
+ }
+
+ /* Stop RLMT timers. */
+ SkTimerStop(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[0]].LocTimer);
+ SkTimerStop(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[0]].SegTimer);
+
+ /* Stop net. */
+ pAC->Rlmt.Net[Para.Para32[0]].RlmtState = SK_RLMT_RS_INIT;
+ pAC->Rlmt.Net[Para.Para32[0]].RootIdSet = SK_FALSE;
+ Para2.Para32[0] = SK_RLMT_NET_DOWN_FINAL;
+ Para2.Para32[1] = Para.Para32[0]; /* Net# */
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_NET_DOWN, Para2);
+
+ /* Stop ports. */
+ for (i = 0; i < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; i++) {
+ PortNumber = pAC->Rlmt.Net[Para.Para32[0]].Port[i]->PortNumber;
+ if (pAC->Rlmt.Port[PortNumber].PortState != SK_RLMT_PS_INIT) {
+ SkTimerStop(pAC, IoC, &pAC->Rlmt.Port[PortNumber].UpTimer);
+ SkTimerStop(pAC, IoC, &pAC->Rlmt.Port[PortNumber].DownRxTimer);
+ SkTimerStop(pAC, IoC, &pAC->Rlmt.Port[PortNumber].DownTxTimer);
+
+ pAC->Rlmt.Port[PortNumber].PortState = SK_RLMT_PS_INIT;
+ pAC->Rlmt.Port[PortNumber].RootIdSet = SK_FALSE;
+ pAC->Rlmt.Port[PortNumber].PortStarted = SK_FALSE;
+ Para2.Para32[0] = PortNumber;
+ Para2.Para32[1] = (SK_U32)-1;
+ SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para2);
+ }
+ }
+
+ pAC->Rlmt.NetsStarted--;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STOP Event END.\n"))
+} /* SkRlmtEvtStop */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtTim - TIM
+ *
+ * Description:
+ * This routine handles TIM events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtTim(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
+{
+ SK_RLMT_PORT *pRPort;
+ SK_U32 Timeout;
+ SK_U32 NewTimeout;
+ SK_U32 PortNumber;
+ SK_U32 i;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_TIM Event BEGIN.\n"))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_TIM Event EMPTY.\n"))
+ return;
+ }
+
+ if ((pAC->Rlmt.Net[Para.Para32[0]].RlmtMode & SK_RLMT_CHECK_OTHERS) == 0 ||
+ pAC->Rlmt.Net[Para.Para32[0]].LinksUp == 0) {
+ /* Mode changed or all links down: No more link checking. */
+ return;
+ }
+
+#if 0
+ pAC->Rlmt.SwitchCheckCounter--;
+ if (pAC->Rlmt.SwitchCheckCounter == 0) {
+ pAC->Rlmt.SwitchCheckCounter;
+ }
+#endif /* 0 */
+
+ NewTimeout = SK_RLMT_DEF_TO_VAL;
+ for (i = 0; i < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; i++) {
+ PortNumber = pAC->Rlmt.Net[Para.Para32[0]].Port[i]->PortNumber;
+ pRPort = &pAC->Rlmt.Port[PortNumber];
+ if (!pRPort->LinkDown) {
+ Timeout = SkRlmtCheckPort(pAC, IoC, PortNumber);
+ if (Timeout < NewTimeout) {
+ NewTimeout = Timeout;
+ }
+
+ /*
+ * These counters should be set to 0 for all ports before the
+ * first frame is sent in the next loop.
+ */
+ pRPort->PacketsPerTimeSlot = 0;
+ /* pRPort->DataPacketsPerTimeSlot = 0; */
+ pRPort->BpduPacketsPerTimeSlot = 0;
+ }
+ }
+ pAC->Rlmt.Net[Para.Para32[0]].TimeoutValue = NewTimeout;
+
+ if (pAC->Rlmt.Net[Para.Para32[0]].LinksUp > 1) {
+ /*
+ * If checking remote ports, also send packets if
+ * (LinksUp == 1) &&
+ * this port checks at least one (remote) port.
+ */
+
+ /*
+ * Must be new loop, as SkRlmtCheckPort can request to
+ * check segmentation when e.g. checking the last port.
+ */
+ for (i = 0; i < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; i++) {
+ if (!pAC->Rlmt.Net[Para.Para32[0]].Port[i]->LinkDown) {
+ SkRlmtSend(pAC, IoC,
+ pAC->Rlmt.Net[Para.Para32[0]].Port[i]->PortNumber);
+ }
+ }
+ }
+
+ SkTimerStart(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[0]].LocTimer,
+ pAC->Rlmt.Net[Para.Para32[0]].TimeoutValue, SKGE_RLMT, SK_RLMT_TIM,
+ Para);
+
+ if (pAC->Rlmt.Net[Para.Para32[0]].LinksUp > 1 &&
+ (pAC->Rlmt.Net[Para.Para32[0]].RlmtMode & SK_RLMT_CHECK_SEG) &&
+ (pAC->Rlmt.Net[Para.Para32[0]].CheckingState & SK_RLMT_RCS_START_SEG)) {
+ SkTimerStart(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[0]].SegTimer,
+ SK_RLMT_SEG_TO_VAL, SKGE_RLMT, SK_RLMT_SEG_TIM, Para);
+ pAC->Rlmt.Net[Para.Para32[0]].CheckingState &= ~SK_RLMT_RCS_START_SEG;
+ pAC->Rlmt.Net[Para.Para32[0]].CheckingState |=
+ SK_RLMT_RCS_SEG | SK_RLMT_RCS_REPORT_SEG;
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_TIM Event END.\n"))
+} /* SkRlmtEvtTim */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtSegTim - SEG_TIM
+ *
+ * Description:
+ * This routine handles SEG_TIM events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtSegTim(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
+{
+#ifdef xDEBUG
+ int j;
+#endif /* DEBUG */
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SEG_TIM Event BEGIN.\n"))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SEG_TIM Event EMPTY.\n"))
+ return;
+ }
+
+#ifdef xDEBUG
+ for (j = 0; j < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; j++) {
+ SK_ADDR_PORT *pAPort;
+ SK_U32 k;
+ SK_U16 *InAddr;
+ SK_U8 InAddr8[6];
+
+ InAddr = (SK_U16 *)&InAddr8[0];
+ pAPort = pAC->Rlmt.Net[Para.Para32[0]].Port[j]->AddrPort;
+ for (k = 0; k < pAPort->NextExactMatchRlmt; k++) {
+ /* Get exact match address k from port j. */
+ XM_INADDR(IoC, pAC->Rlmt.Net[Para.Para32[0]].Port[j]->PortNumber,
+ XM_EXM(k), InAddr);
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("MC address %d on Port %u: %02x %02x %02x %02x %02x %02x -- %02x %02x %02x %02x %02x %02x.\n",
+ k, pAC->Rlmt.Net[Para.Para32[0]].Port[j]->PortNumber,
+ InAddr8[0], InAddr8[1], InAddr8[2],
+ InAddr8[3], InAddr8[4], InAddr8[5],
+ pAPort->Exact[k].a[0], pAPort->Exact[k].a[1],
+ pAPort->Exact[k].a[2], pAPort->Exact[k].a[3],
+ pAPort->Exact[k].a[4], pAPort->Exact[k].a[5]))
+ }
+ }
+#endif /* xDEBUG */
+
+ SkRlmtCheckSeg(pAC, IoC, Para.Para32[0]);
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SEG_TIM Event END.\n"))
+} /* SkRlmtEvtSegTim */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtPacketRx - PACKET_RECEIVED
+ *
+ * Description:
+ * This routine handles PACKET_RECEIVED events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtPacketRx(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_MBUF *pMb */
+{
+ SK_MBUF *pMb;
+ SK_MBUF *pNextMb;
+ SK_U32 NetNumber;
+
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PACKET_RECEIVED Event BEGIN.\n"))
+
+ /* Should we ignore frames during port switching? */
+
+#ifdef DEBUG
+ pMb = Para.pParaPtr;
+ if (pMb == NULL) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL, ("No mbuf.\n"))
+ }
+ else if (pMb->pNext != NULL) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("More than one mbuf or pMb->pNext not set.\n"))
+ }
+#endif /* DEBUG */
+
+ for (pMb = Para.pParaPtr; pMb != NULL; pMb = pNextMb) {
+ pNextMb = pMb->pNext;
+ pMb->pNext = NULL;
+
+ NetNumber = pAC->Rlmt.Port[pMb->PortIdx].Net->NetNumber;
+ if (pAC->Rlmt.Net[NetNumber].RlmtState == SK_RLMT_RS_INIT) {
+ SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
+ }
+ else {
+ SkRlmtPacketReceive(pAC, IoC, pMb);
+ }
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PACKET_RECEIVED Event END.\n"))
+} /* SkRlmtEvtPacketRx */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtStatsClear - STATS_CLEAR
+ *
+ * Description:
+ * This routine handles STATS_CLEAR events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtStatsClear(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
+{
+ SK_U32 i;
+ SK_RLMT_PORT *pRPort;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STATS_CLEAR Event BEGIN.\n"))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STATS_CLEAR Event EMPTY.\n"))
+ return;
+ }
+
+ if (Para.Para32[0] >= pAC->Rlmt.NumNets) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad NetNumber %d.\n", Para.Para32[0]))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STATS_CLEAR Event EMPTY.\n"))
+ return;
+ }
+
+ /* Clear statistics for logical and physical ports. */
+ for (i = 0; i < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; i++) {
+ pRPort =
+ &pAC->Rlmt.Port[pAC->Rlmt.Net[Para.Para32[0]].Port[i]->PortNumber];
+ pRPort->TxHelloCts = 0;
+ pRPort->RxHelloCts = 0;
+ pRPort->TxSpHelloReqCts = 0;
+ pRPort->RxSpHelloCts = 0;
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STATS_CLEAR Event END.\n"))
+} /* SkRlmtEvtStatsClear */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtStatsUpdate - STATS_UPDATE
+ *
+ * Description:
+ * This routine handles STATS_UPDATE events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtStatsUpdate(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
+{
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STATS_UPDATE Event BEGIN.\n"))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STATS_UPDATE Event EMPTY.\n"))
+ return;
+ }
+
+ if (Para.Para32[0] >= pAC->Rlmt.NumNets) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad NetNumber %d.\n", Para.Para32[0]))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STATS_UPDATE Event EMPTY.\n"))
+ return;
+ }
+
+ /* Update statistics - currently always up-to-date. */
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_STATS_UPDATE Event END.\n"))
+} /* SkRlmtEvtStatsUpdate */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtPrefportChange - PREFPORT_CHANGE
+ *
+ * Description:
+ * This routine handles PREFPORT_CHANGE events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtPrefportChange(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 PortIndex; SK_U32 NetNumber */
+{
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PREFPORT_CHANGE to Port %d Event BEGIN.\n", Para.Para32[0]))
+
+ if (Para.Para32[1] >= pAC->Rlmt.NumNets) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad NetNumber %d.\n", Para.Para32[1]))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PREFPORT_CHANGE Event EMPTY.\n"))
+ return;
+ }
+
+ /* 0xFFFFFFFF == auto-mode. */
+ if (Para.Para32[0] == 0xFFFFFFFF) {
+ pAC->Rlmt.Net[Para.Para32[1]].PrefPort = SK_RLMT_DEF_PREF_PORT;
+ }
+ else {
+ if (Para.Para32[0] >= pAC->Rlmt.Net[Para.Para32[1]].NumPorts) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E010, SKERR_RLMT_E010_MSG);
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PREFPORT_CHANGE Event EMPTY.\n"))
+ return;
+ }
+
+ pAC->Rlmt.Net[Para.Para32[1]].PrefPort = Para.Para32[0];
+ }
+
+ pAC->Rlmt.Net[Para.Para32[1]].Preference = Para.Para32[0];
+
+ if (pAC->Rlmt.Net[Para.Para32[1]].RlmtState != SK_RLMT_RS_INIT) {
+ SkRlmtCheckSwitch(pAC, IoC, Para.Para32[1]);
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_PREFPORT_CHANGE Event END.\n"))
+} /* SkRlmtEvtPrefportChange */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtSetNets - SET_NETS
+ *
+ * Description:
+ * This routine handles SET_NETS events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtSetNets(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 NumNets; SK_U32 -1 */
+{
+ int i;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SET_NETS Event BEGIN.\n"))
+
+ if (Para.Para32[1] != (SK_U32)-1) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad Parameter.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SET_NETS Event EMPTY.\n"))
+ return;
+ }
+
+ if (Para.Para32[0] == 0 || Para.Para32[0] > SK_MAX_NETS ||
+ Para.Para32[0] > (SK_U32)pAC->GIni.GIMacsFound) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad number of nets: %d.\n", Para.Para32[0]))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SET_NETS Event EMPTY.\n"))
+ return;
+ }
+
+ if (Para.Para32[0] == pAC->Rlmt.NumNets) { /* No change. */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SET_NETS Event EMPTY.\n"))
+ return;
+ }
+
+ /* Entering and leaving dual mode only allowed while nets are stopped. */
+ if (pAC->Rlmt.NetsStarted > 0) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Changing dual mode only allowed while all nets are stopped.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SET_NETS Event EMPTY.\n"))
+ return;
+ }
+
+ if (Para.Para32[0] == 1) {
+ if (pAC->Rlmt.NumNets > 1) {
+ /* Clear logical MAC addr from second net's active port. */
+ (void)SkAddrOverride(pAC, IoC, pAC->Rlmt.Net[1].Port[pAC->Addr.
+ Net[1].ActivePort]->PortNumber, NULL, SK_ADDR_CLEAR_LOGICAL);
+ pAC->Rlmt.Net[1].NumPorts = 0;
+ }
+
+ pAC->Rlmt.NumNets = Para.Para32[0];
+ for (i = 0; (SK_U32)i < pAC->Rlmt.NumNets; i++) {
+ pAC->Rlmt.Net[i].RlmtState = SK_RLMT_RS_INIT;
+ pAC->Rlmt.Net[i].RootIdSet = SK_FALSE;
+ pAC->Rlmt.Net[i].Preference = 0xFFFFFFFF; /* "Automatic" */
+ pAC->Rlmt.Net[i].PrefPort = SK_RLMT_DEF_PREF_PORT;
+ /* Just assuming. */
+ pAC->Rlmt.Net[i].ActivePort = pAC->Rlmt.Net[i].PrefPort;
+ pAC->Rlmt.Net[i].RlmtMode = SK_RLMT_DEF_MODE;
+ pAC->Rlmt.Net[i].TimeoutValue = SK_RLMT_DEF_TO_VAL;
+ pAC->Rlmt.Net[i].NetNumber = i;
+ }
+
+ pAC->Rlmt.Port[1].Net= &pAC->Rlmt.Net[0];
+ pAC->Rlmt.Net[0].NumPorts = pAC->GIni.GIMacsFound;
+
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_SET_NETS, Para);
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("RLMT: Changed to one net with two ports.\n"))
+ }
+ else if (Para.Para32[0] == 2) {
+ pAC->Rlmt.Port[1].Net= &pAC->Rlmt.Net[1];
+ pAC->Rlmt.Net[1].NumPorts = pAC->GIni.GIMacsFound - 1;
+ pAC->Rlmt.Net[0].NumPorts =
+ pAC->GIni.GIMacsFound - pAC->Rlmt.Net[1].NumPorts;
+
+ pAC->Rlmt.NumNets = Para.Para32[0];
+ for (i = 0; (SK_U32)i < pAC->Rlmt.NumNets; i++) {
+ pAC->Rlmt.Net[i].RlmtState = SK_RLMT_RS_INIT;
+ pAC->Rlmt.Net[i].RootIdSet = SK_FALSE;
+ pAC->Rlmt.Net[i].Preference = 0xFFFFFFFF; /* "Automatic" */
+ pAC->Rlmt.Net[i].PrefPort = SK_RLMT_DEF_PREF_PORT;
+ /* Just assuming. */
+ pAC->Rlmt.Net[i].ActivePort = pAC->Rlmt.Net[i].PrefPort;
+ pAC->Rlmt.Net[i].RlmtMode = SK_RLMT_DEF_MODE;
+ pAC->Rlmt.Net[i].TimeoutValue = SK_RLMT_DEF_TO_VAL;
+
+ pAC->Rlmt.Net[i].NetNumber = i;
+ }
+
+ /* Set logical MAC addr on second net's active port. */
+ (void)SkAddrOverride(pAC, IoC, pAC->Rlmt.Net[1].Port[pAC->Addr.
+ Net[1].ActivePort]->PortNumber, NULL, SK_ADDR_SET_LOGICAL);
+
+ SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_SET_NETS, Para);
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("RLMT: Changed to two nets with one port each.\n"))
+ }
+ else {
+ /* Not implemented for more than two nets. */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SetNets not implemented for more than two nets.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SET_NETS Event EMPTY.\n"))
+ return;
+ }
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_SET_NETS Event END.\n"))
+} /* SkRlmtSetNets */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvtModeChange - MODE_CHANGE
+ *
+ * Description:
+ * This routine handles MODE_CHANGE events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * Nothing
+ */
+RLMT_STATIC void SkRlmtEvtModeChange(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_EVPARA Para) /* SK_U32 NewMode; SK_U32 NetNumber */
+{
+ SK_EVPARA Para2;
+ SK_U32 i;
+ SK_U32 PrevRlmtMode;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_MODE_CHANGE Event BEGIN.\n"))
+
+ if (Para.Para32[1] >= pAC->Rlmt.NumNets) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Bad NetNumber %d.\n", Para.Para32[1]))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_MODE_CHANGE Event EMPTY.\n"))
+ return;
+ }
+
+ Para.Para32[0] |= SK_RLMT_CHECK_LINK;
+
+ if ((pAC->Rlmt.Net[Para.Para32[1]].NumPorts == 1) &&
+ Para.Para32[0] != SK_RLMT_MODE_CLS) {
+ pAC->Rlmt.Net[Para.Para32[1]].RlmtMode = SK_RLMT_MODE_CLS;
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Forced RLMT mode to CLS on single port net.\n"))
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_MODE_CHANGE Event EMPTY.\n"))
+ return;
+ }
+
+ /* Update RLMT mode. */
+ PrevRlmtMode = pAC->Rlmt.Net[Para.Para32[1]].RlmtMode;
+ pAC->Rlmt.Net[Para.Para32[1]].RlmtMode = Para.Para32[0];
+
+ if ((PrevRlmtMode & SK_RLMT_CHECK_LOC_LINK) !=
+ (pAC->Rlmt.Net[Para.Para32[1]].RlmtMode & SK_RLMT_CHECK_LOC_LINK)) {
+ /* SK_RLMT_CHECK_LOC_LINK bit changed. */
+ if ((PrevRlmtMode & SK_RLMT_CHECK_OTHERS) == 0 &&
+ pAC->Rlmt.Net[Para.Para32[1]].NumPorts > 1 &&
+ pAC->Rlmt.Net[Para.Para32[1]].PortsUp >= 1) {
+ /* 20001207 RA: Was "PortsUp == 1". */
+ Para2.Para32[0] = Para.Para32[1];
+ Para2.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[1]].LocTimer,
+ pAC->Rlmt.Net[Para.Para32[1]].TimeoutValue,
+ SKGE_RLMT, SK_RLMT_TIM, Para2);
+ }
+ }
+
+ if ((PrevRlmtMode & SK_RLMT_CHECK_SEG) !=
+ (pAC->Rlmt.Net[Para.Para32[1]].RlmtMode & SK_RLMT_CHECK_SEG)) {
+ /* SK_RLMT_CHECK_SEG bit changed. */
+ for (i = 0; i < pAC->Rlmt.Net[Para.Para32[1]].NumPorts; i++) {
+ (void)SkAddrMcClear(pAC, IoC,
+ pAC->Rlmt.Net[Para.Para32[1]].Port[i]->PortNumber,
+ SK_ADDR_PERMANENT | SK_MC_SW_ONLY);
+
+ /* Add RLMT MC address. */
+ (void)SkAddrMcAdd(pAC, IoC,
+ pAC->Rlmt.Net[Para.Para32[1]].Port[i]->PortNumber,
+ &SkRlmtMcAddr, SK_ADDR_PERMANENT);
+
+ if ((pAC->Rlmt.Net[Para.Para32[1]].RlmtMode &
+ SK_RLMT_CHECK_SEG) != 0) {
+ /* Add BPDU MC address. */
+ (void)SkAddrMcAdd(pAC, IoC,
+ pAC->Rlmt.Net[Para.Para32[1]].Port[i]->PortNumber,
+ &BridgeMcAddr, SK_ADDR_PERMANENT);
+
+ if (pAC->Rlmt.Net[Para.Para32[1]].RlmtState != SK_RLMT_RS_INIT) {
+ if (!pAC->Rlmt.Net[Para.Para32[1]].Port[i]->LinkDown &&
+ (Para2.pParaPtr = SkRlmtBuildSpanningTreePacket(
+ pAC, IoC, i)) != NULL) {
+ pAC->Rlmt.Net[Para.Para32[1]].Port[i]->RootIdSet =
+ SK_FALSE;
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para2);
+ }
+ }
+ }
+ (void)SkAddrMcUpdate(pAC, IoC,
+ pAC->Rlmt.Net[Para.Para32[1]].Port[i]->PortNumber);
+ } /* for ... */
+
+ if ((pAC->Rlmt.Net[Para.Para32[1]].RlmtMode & SK_RLMT_CHECK_SEG) != 0) {
+ Para2.Para32[0] = Para.Para32[1];
+ Para2.Para32[1] = (SK_U32)-1;
+ SkTimerStart(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[1]].SegTimer,
+ SK_RLMT_SEG_TO_VAL, SKGE_RLMT, SK_RLMT_SEG_TIM, Para2);
+ }
+ } /* SK_RLMT_CHECK_SEG bit changed. */
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("SK_RLMT_MODE_CHANGE Event END.\n"))
+} /* SkRlmtEvtModeChange */
+
+
+/******************************************************************************
+ *
+ * SkRlmtEvent - a PORT- or an RLMT-specific event happened
+ *
+ * Description:
+ * This routine calls subroutines to handle PORT- and RLMT-specific events.
+ *
+ * Context:
+ * runtime, pageable?
+ * may be called after SK_INIT_IO
+ *
+ * Returns:
+ * 0
+ */
+int SkRlmtEvent(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* I/O Context */
+SK_U32 Event, /* Event code */
+SK_EVPARA Para) /* Event-specific parameter */
+{
+ switch (Event) {
+
+ /* ----- PORT events ----- */
+
+ case SK_RLMT_PORTSTART_TIM: /* From RLMT via TIME. */
+ SkRlmtEvtPortStartTim(pAC, IoC, Para);
+ break;
+ case SK_RLMT_LINK_UP: /* From SIRQ. */
+ SkRlmtEvtLinkUp(pAC, IoC, Para);
+ break;
+ case SK_RLMT_PORTUP_TIM: /* From RLMT via TIME. */
+ SkRlmtEvtPortUpTim(pAC, IoC, Para);
+ break;
+ case SK_RLMT_PORTDOWN: /* From RLMT. */
+ case SK_RLMT_PORTDOWN_RX_TIM: /* From RLMT via TIME. */
+ case SK_RLMT_PORTDOWN_TX_TIM: /* From RLMT via TIME. */
+ SkRlmtEvtPortDownX(pAC, IoC, Event, Para);
+ break;
+ case SK_RLMT_LINK_DOWN: /* From SIRQ. */
+ SkRlmtEvtLinkDown(pAC, IoC, Para);
+ break;
+ case SK_RLMT_PORT_ADDR: /* From ADDR. */
+ SkRlmtEvtPortAddr(pAC, IoC, Para);
+ break;
+
+ /* ----- RLMT events ----- */
+
+ case SK_RLMT_START: /* From DRV. */
+ SkRlmtEvtStart(pAC, IoC, Para);
+ break;
+ case SK_RLMT_STOP: /* From DRV. */
+ SkRlmtEvtStop(pAC, IoC, Para);
+ break;
+ case SK_RLMT_TIM: /* From RLMT via TIME. */
+ SkRlmtEvtTim(pAC, IoC, Para);
+ break;
+ case SK_RLMT_SEG_TIM:
+ SkRlmtEvtSegTim(pAC, IoC, Para);
+ break;
+ case SK_RLMT_PACKET_RECEIVED: /* From DRV. */
+ SkRlmtEvtPacketRx(pAC, IoC, Para);
+ break;
+ case SK_RLMT_STATS_CLEAR: /* From PNMI. */
+ SkRlmtEvtStatsClear(pAC, IoC, Para);
+ break;
+ case SK_RLMT_STATS_UPDATE: /* From PNMI. */
+ SkRlmtEvtStatsUpdate(pAC, IoC, Para);
+ break;
+ case SK_RLMT_PREFPORT_CHANGE: /* From PNMI. */
+ SkRlmtEvtPrefportChange(pAC, IoC, Para);
+ break;
+ case SK_RLMT_MODE_CHANGE: /* From PNMI. */
+ SkRlmtEvtModeChange(pAC, IoC, Para);
+ break;
+ case SK_RLMT_SET_NETS: /* From DRV. */
+ SkRlmtEvtSetNets(pAC, IoC, Para);
+ break;
+
+ /* ----- Unknown events ----- */
+
+ default: /* Create error log entry. */
+ SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
+ ("Unknown RLMT Event %d.\n", Event))
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E003, SKERR_RLMT_E003_MSG);
+ break;
+ } /* switch() */
+
+ return (0);
+} /* SkRlmtEvent */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
generated by cgit v1.1 at 2024-11-05 19:11:13 +0000