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/******************************************************************************
*
* Name: skaddr.c
* Project: GEnesis, PCI Gigabit Ethernet Adapter
* Version: $Revision: 1.40 $
* Date: $Date: 2001/02/14 14:04:59 $
* Purpose: Manage Addresses (Multicast and Unicast) and Promiscuous Mode.
*
******************************************************************************/
/******************************************************************************
*
* (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: skaddr.c,v $
* Revision 1.40 2001/02/14 14:04:59 rassmann
* Editorial changes.
*
* Revision 1.39 2001/01/30 10:30:04 rassmann
* Editorial changes.
*
* Revision 1.38 2001/01/25 16:26:52 rassmann
* Ensured that logical address overrides are done on net's active port.
*
* Revision 1.37 2001/01/22 13:41:34 rassmann
* Supporting two nets on dual-port adapters.
*
* Revision 1.36 2000/08/07 11:10:39 rassmann
* Editorial changes.
*
* Revision 1.35 2000/05/04 09:38:41 rassmann
* Editorial changes.
* Corrected multicast address hashing.
*
* Revision 1.34 1999/11/22 13:23:44 cgoos
* Changed license header to GPL.
*
* Revision 1.33 1999/05/28 10:56:06 rassmann
* Editorial changes.
*
* Revision 1.32 1999/03/31 10:59:20 rassmann
* Returning Success instead of DupAddr if address shall be overridden
* with same value.
*
* Revision 1.31 1999/01/14 16:18:17 rassmann
* Corrected multicast initialization.
*
* Revision 1.30 1999/01/04 10:30:35 rassmann
* SkAddrOverride only possible after SK_INIT_IO phase.
*
* Revision 1.29 1998/12/29 13:13:10 rassmann
* An address override is now preserved in the SK_INIT_IO phase.
* All functions return an int now.
* Extended parameter checking.
*
* Revision 1.28 1998/12/01 11:45:53 rassmann
* Code cleanup.
*
* Revision 1.27 1998/12/01 09:22:49 rassmann
* SkAddrMcAdd and SkAddrMcUpdate returned SK_MC_FILTERING_INEXACT
* too often.
*
* Revision 1.26 1998/11/24 12:39:44 rassmann
* Reserved multicast entry for BPDU address.
* 13 multicast entries left for protocol.
*
* Revision 1.25 1998/11/17 16:54:23 rassmann
* Using exact match for up to 14 multicast addresses.
* Still receiving all multicasts if more addresses are added.
*
* Revision 1.24 1998/11/13 17:24:31 rassmann
* Changed return value of SkAddrOverride to int.
*
* Revision 1.23 1998/11/13 16:56:18 rassmann
* Added macro SK_ADDR_COMPARE.
* Changed return type of SkAddrOverride to SK_BOOL.
*
* Revision 1.22 1998/11/04 17:06:17 rassmann
* Corrected McUpdate and PromiscuousChange functions.
*
* Revision 1.21 1998/10/29 14:34:04 rassmann
* Clearing SK_ADDR struct at startup.
*
* Revision 1.20 1998/10/28 18:16:34 rassmann
* Avoiding I/Os before SK_INIT_RUN level.
* Aligning InexactFilter.
*
* Revision 1.19 1998/10/28 11:29:28 rassmann
* Programming physical address in SkAddrMcUpdate.
* Corrected programming of exact match entries.
*
* Revision 1.18 1998/10/28 10:34:48 rassmann
* Corrected reading of physical addresses.
*
* Revision 1.17 1998/10/28 10:26:13 rassmann
* Getting ports' current MAC addresses from EPROM now.
* Added debug output.
*
* Revision 1.16 1998/10/27 16:20:12 rassmann
* Reading MAC address byte by byte.
*
* Revision 1.15 1998/10/22 11:39:09 rassmann
* Corrected signed/unsigned mismatches.
*
* Revision 1.14 1998/10/19 17:12:35 rassmann
* Syntax corrections.
*
* Revision 1.13 1998/10/19 17:02:19 rassmann
* Now reading permanent MAC addresses from CRF.
*
* Revision 1.12 1998/10/15 15:15:48 rassmann
* Changed Flags Parameters from SK_U8 to int.
* Checked with lint.
*
* Revision 1.11 1998/09/24 19:15:12 rassmann
* Code cleanup.
*
* Revision 1.10 1998/09/18 20:18:54 rassmann
* Added HW access.
* Implemented swapping.
*
* Revision 1.9 1998/09/16 11:32:00 rassmann
* Including skdrv1st.h again. :(
*
* Revision 1.8 1998/09/16 11:09:34 rassmann
* Syntax corrections.
*
* Revision 1.7 1998/09/14 17:06:34 rassmann
* Minor changes.
*
* Revision 1.6 1998/09/07 08:45:41 rassmann
* Syntax corrections.
*
* Revision 1.5 1998/09/04 19:40:19 rassmann
* Interface enhancements.
*
* Revision 1.4 1998/09/04 12:14:12 rassmann
* Interface cleanup.
*
* Revision 1.3 1998/09/02 16:56:40 rassmann
* Updated interface.
*
* Revision 1.2 1998/08/27 14:26:09 rassmann
* Updated interface.
*
* Revision 1.1 1998/08/21 08:30:22 rassmann
* First public version.
*
******************************************************************************/
/******************************************************************************
*
* Description:
*
* This module is intended to manage multicast addresses, address override,
* and promiscuous mode on GEnesis adapters.
*
* Address Layout:
* port address: physical MAC address
* 1st exact match: logical MAC address
* 2nd exact match: RLMT multicast
* exact match 3-13: OS-specific multicasts
*
* Include File Hierarchy:
*
* "skdrv1st.h"
* "skdrv2nd.h"
*
******************************************************************************/
#ifndef lint
static const char SysKonnectFileId[] =
"@(#) $Id: skaddr.c,v 1.40 2001/02/14 14:04:59 rassmann Exp $ (C) SysKonnect.";
#endif /* !defined(lint) */
#define __SKADDR_C
#ifdef __cplusplus
#error C++ is not yet supported.
extern "C" {
#endif /* cplusplus */
#include "h/skdrv1st.h"
#include "h/skdrv2nd.h"
/* defines ********************************************************************/
#define CRC32_POLY 0xEDB88320UL /* CRC32-Poly - XMAC: Little Endian */
#define HASH_BITS 6 /* #bits in hash */
#define SK_MC_BIT 0x01
/* Error numbers and messages. */
#define SKERR_ADDR_E001 (SK_ERRBASE_ADDR + 0)
#define SKERR_ADDR_E001MSG "Bad Flags."
#define SKERR_ADDR_E002 (SKERR_ADDR_E001 + 1)
#define SKERR_ADDR_E002MSG "New Error."
/* typedefs *******************************************************************/
/* None. */
/* global variables ***********************************************************/
/* 64-bit hash values with all bits set. */
SK_U16 OnesHash[4] = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};
/* local variables ************************************************************/
#ifdef DEBUG
static int Next0[SK_MAX_MACS] = {0, 0};
#endif /* DEBUG */
/* functions ******************************************************************/
/******************************************************************************
*
* SkAddrInit - initialize data, set state to init
*
* Description:
*
* SK_INIT_DATA
* ============
*
* This routine clears the multicast tables and resets promiscuous mode.
* Some entries are reserved for the "logical MAC address", the
* SK-RLMT multicast address, and the BPDU multicast address.
*
*
* SK_INIT_IO
* ==========
*
* All permanent MAC addresses are read from EPROM.
* If the current MAC addresses are not already set in software,
* they are set to the values of the permanent addresses.
* The current addresses are written to the corresponding XMAC.
*
*
* SK_INIT_RUN
* ===========
*
* Nothing.
*
* Context:
* init, pageable
*
* Returns:
* SK_ADDR_SUCCESS
*/
int SkAddrInit(
SK_AC *pAC, /* the adapter context */
SK_IOC IoC, /* I/O context */
int Level) /* initialization level */
{
int j;
SK_U32 i;
SK_U8 *InAddr;
SK_U16 *OutAddr;
SK_ADDR_PORT *pAPort;
switch (Level) {
case SK_INIT_DATA:
SK_MEMSET((char *)&pAC->Addr, 0, sizeof(SK_ADDR));
for (i = 0; i < SK_MAX_MACS; i++) {
pAPort = &pAC->Addr.Port[i];
pAPort->PromMode = SK_PROM_MODE_NONE;
pAPort->FirstExactMatchRlmt = SK_ADDR_FIRST_MATCH_RLMT;
pAPort->FirstExactMatchDrv = SK_ADDR_FIRST_MATCH_DRV;
pAPort->NextExactMatchRlmt = SK_ADDR_FIRST_MATCH_RLMT;
pAPort->NextExactMatchDrv = SK_ADDR_FIRST_MATCH_DRV;
#if 0
/* Don't do this here ... */
/* Reset Promiscuous mode. */
(void)SkAddrPromiscuousChange(
pAC,
IoC,
i,
SK_PROM_MODE_NONE);
#endif /* 0 */
}
#ifdef DEBUG
for (i = 0; i < SK_MAX_MACS; i++) {
if (pAC->Addr.Port[i].NextExactMatchRlmt <
SK_ADDR_FIRST_MATCH_RLMT) {
Next0[i] |= 4;
}
}
#endif /* DEBUG */
/* pAC->Addr.InitDone = SK_INIT_DATA; */
break;
case SK_INIT_IO:
for (i = 0; i < SK_MAX_NETS; i++) {
pAC->Addr.Net[i].ActivePort = pAC->Rlmt.Net[i].ActivePort;
}
#ifdef DEBUG
for (i = 0; i < SK_MAX_MACS; i++) {
if (pAC->Addr.Port[i].NextExactMatchRlmt <
SK_ADDR_FIRST_MATCH_RLMT) {
Next0[i] |= 8;
}
}
#endif /* DEBUG */
/* Read permanent logical MAC address from Control Register File. */
for (j = 0; j < SK_MAC_ADDR_LEN; j++) {
InAddr = (SK_U8 *)&pAC->Addr.Net[0].PermanentMacAddress.a[j];
SK_IN8(IoC, B2_MAC_1 + j, InAddr);
}
if (!pAC->Addr.Net[0].CurrentMacAddressSet) {
/* Set the current logical MAC address to the permanent one. */
pAC->Addr.Net[0].CurrentMacAddress =
pAC->Addr.Net[0].PermanentMacAddress;
pAC->Addr.Net[0].CurrentMacAddressSet = SK_TRUE;
}
/* Set the current logical MAC address. */
pAC->Addr.Port[pAC->Addr.Net[0].ActivePort].Exact[0] =
pAC->Addr.Net[0].CurrentMacAddress;
#if SK_MAX_NETS > 1
/* Set logical MAC address for net 2 to (log | 3). */
if (!pAC->Addr.Net[1].CurrentMacAddressSet) {
pAC->Addr.Net[1].PermanentMacAddress =
pAC->Addr.Net[0].PermanentMacAddress;
pAC->Addr.Net[1].PermanentMacAddress.a[5] |= 3;
/* Set the current logical MAC address to the permanent one. */
pAC->Addr.Net[1].CurrentMacAddress =
pAC->Addr.Net[1].PermanentMacAddress;
pAC->Addr.Net[1].CurrentMacAddressSet = SK_TRUE;
}
#endif /* SK_MAX_NETS > 1 */
#ifdef xDEBUG
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_INIT,
("Permanent MAC Address: %02X %02X %02X %02X %02X %02X\n",
pAC->Addr.PermanentMacAddress.a[0],
pAC->Addr.PermanentMacAddress.a[1],
pAC->Addr.PermanentMacAddress.a[2],
pAC->Addr.PermanentMacAddress.a[3],
pAC->Addr.PermanentMacAddress.a[4],
pAC->Addr.PermanentMacAddress.a[5]))
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_INIT,
("Logical MAC Address: %02X %02X %02X %02X %02X %02X\n",
pAC->Addr.CurrentMacAddress.a[0],
pAC->Addr.CurrentMacAddress.a[1],
pAC->Addr.CurrentMacAddress.a[2],
pAC->Addr.CurrentMacAddress.a[3],
pAC->Addr.CurrentMacAddress.a[4],
pAC->Addr.CurrentMacAddress.a[5]))
#endif /* DEBUG */
#if 0
/* Don't do this here ... */
(void)SkAddrMcUpdate(pAC, IoC, pAC->Addr.ActivePort);
#endif /* 0 */
for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
pAPort = &pAC->Addr.Port[i];
/* Read permanent port addresses from Control Register File. */
for (j = 0; j < SK_MAC_ADDR_LEN; j++) {
InAddr = (SK_U8 *)&pAPort->PermanentMacAddress.a[j];
SK_IN8(IoC, B2_MAC_2 + 8 * i + j, InAddr);
}
if (!pAPort->CurrentMacAddressSet) {
/*
* Set the current and previous physical MAC address
* of this port to its permanent MAC address.
*/
pAPort->CurrentMacAddress = pAPort->PermanentMacAddress;
pAPort->PreviousMacAddress = pAPort->PermanentMacAddress;
pAPort->CurrentMacAddressSet = SK_TRUE;
}
/* Set port's current MAC addresses. */
OutAddr = (SK_U16 *)&pAPort->CurrentMacAddress.a[0];
XM_OUTADDR(IoC, i, XM_SA, OutAddr);
#ifdef xDEBUG
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_INIT,
("Permanent Physical MAC Address: %02X %02X %02X %02X %02X %02X\n",
pAPort->PermanentMacAddress.a[0],
pAPort->PermanentMacAddress.a[1],
pAPort->PermanentMacAddress.a[2],
pAPort->PermanentMacAddress.a[3],
pAPort->PermanentMacAddress.a[4],
pAPort->PermanentMacAddress.a[5]))
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_INIT,
("Phsical MAC Address: %02X %02X %02X %02X %02X %02X\n",
pAPort->CurrentMacAddress.a[0],
pAPort->CurrentMacAddress.a[1],
pAPort->CurrentMacAddress.a[2],
pAPort->CurrentMacAddress.a[3],
pAPort->CurrentMacAddress.a[4],
pAPort->CurrentMacAddress.a[5]))
#endif /* DEBUG */
}
/* pAC->Addr.InitDone = SK_INIT_IO; */
break;
case SK_INIT_RUN:
#ifdef DEBUG
for (i = 0; i < SK_MAX_MACS; i++) {
if (pAC->Addr.Port[i].NextExactMatchRlmt <
SK_ADDR_FIRST_MATCH_RLMT) {
Next0[i] |= 16;
}
}
#endif /* DEBUG */
/* pAC->Addr.InitDone = SK_INIT_RUN; */
break;
default: /* error */
break;
}
return (SK_ADDR_SUCCESS);
} /* SkAddrInit */
/******************************************************************************
*
* SkAddrMcClear - clear the multicast table
*
* Description:
* This routine clears the multicast table
* (either entry 2 or entries 3-16 and InexactFilter) of the given port.
* If not suppressed by Flag SK_MC_SW_ONLY, the hardware is updated
* immediately.
*
* Context:
* runtime, pageable
* may be called starting with SK_INIT_DATA with flag SK_MC_SW_ONLY
* may be called after SK_INIT_IO without limitation
*
* Returns:
* SK_ADDR_SUCCESS
* SK_ADDR_ILLEGAL_PORT
*/
int SkAddrMcClear(
SK_AC *pAC, /* adapter context */
SK_IOC IoC, /* I/O context */
SK_U32 PortNumber, /* Index of affected port */
int Flags) /* permanent/non-perm, sw-only */
{
int i;
if (PortNumber >= (SK_U32)pAC->GIni.GIMacsFound) {
return (SK_ADDR_ILLEGAL_PORT);
}
if (Flags & SK_ADDR_PERMANENT) {
/* Clear RLMT multicast addresses. */
pAC->Addr.Port[PortNumber].NextExactMatchRlmt = SK_ADDR_FIRST_MATCH_RLMT;
}
else { /* not permanent => DRV */
/* Clear InexactFilter. */
for (i = 0; i < 8; i++) {
pAC->Addr.Port[PortNumber].InexactFilter.Bytes[i] = 0;
}
/* Clear DRV multicast addresses. */
pAC->Addr.Port[PortNumber].NextExactMatchDrv = SK_ADDR_FIRST_MATCH_DRV;
}
if (!(Flags & SK_MC_SW_ONLY)) {
(void)SkAddrMcUpdate(pAC, IoC, PortNumber);
}
return (SK_ADDR_SUCCESS);
} /* SkAddrMcClear */
#ifndef SK_ADDR_CHEAT
/******************************************************************************
*
* SkCrc32McHash - hash multicast address
*
* Description:
* This routine computes the hash value for a multicast address.
*
* Notes:
* The code was adapted from the XaQti data sheet.
*
* Context:
* runtime, pageable
*
* Returns:
* Hash value of multicast address.
*/
unsigned SkCrc32McHash(
unsigned char *pMc) /* Multicast address */
{
unsigned Idx;
unsigned Bit;
unsigned Data;
unsigned Crc;
Crc = 0xFFFFFFFFUL;
for (Idx = 0; Idx < SK_MAC_ADDR_LEN; Idx++) {
Data = *pMc++;
for (Bit = 0; Bit < 8; Bit++, Data >>= 1) {
Crc = (Crc >> 1) ^ (((Crc ^ Data) & 1) ? CRC32_POLY : 0);
}
}
return (Crc & ((1 << HASH_BITS) - 1));
} /* SkCrc32McHash */
#endif /* not SK_ADDR_CHEAT */
/******************************************************************************
*
* SkAddrMcAdd - add a multicast address to a port
*
* Description:
* This routine enables reception for a given address on the given port.
*
* Notes:
* The return code is only valid for SK_PROM_MODE_NONE.
*
* In the current version, only RLMT may add addresses to the non-active
* port.
*
* The multicast bit is only checked if there are no free exact match
* entries.
*
* Context:
* runtime, pageable
* may be called after SK_INIT_DATA
*
* Returns:
* SK_MC_FILTERING_EXACT
* SK_MC_FILTERING_INEXACT
* SK_MC_ILLEGAL_ADDRESS
* SK_MC_ILLEGAL_PORT
* SK_MC_RLMT_OVERFLOW
*/
int SkAddrMcAdd(
SK_AC *pAC, /* adapter context */
SK_IOC IoC, /* I/O context */
SK_U32 PortNumber, /* Port Number */
SK_MAC_ADDR *pMc, /* multicast address to be added */
int Flags) /* permanent/non-permanent */
{
int i;
SK_U8 Inexact;
#ifndef SK_ADDR_CHEAT
unsigned HashBit;
#endif /* !defined(SK_ADDR_CHEAT) */
if (PortNumber >= (SK_U32)pAC->GIni.GIMacsFound) {
return (SK_ADDR_ILLEGAL_PORT);
}
if (Flags & SK_ADDR_PERMANENT) {
#ifdef DEBUG
if (pAC->Addr.Port[PortNumber].NextExactMatchRlmt <
SK_ADDR_FIRST_MATCH_RLMT) {
Next0[PortNumber] |= 1;
return (SK_MC_RLMT_OVERFLOW);
}
#endif /* DEBUG */
if (pAC->Addr.Port[PortNumber].NextExactMatchRlmt >
SK_ADDR_LAST_MATCH_RLMT) {
return (SK_MC_RLMT_OVERFLOW);
}
/* Set an RLMT multicast address. */
pAC->Addr.Port[PortNumber].Exact[
pAC->Addr.Port[PortNumber].NextExactMatchRlmt++] = *pMc;
return (SK_MC_FILTERING_EXACT);
}
#if 0
/* Not PERMANENT => DRV */
if (PortNumber != pAC->Addr.ActivePort) {
/* Only RLMT is allowed to do this. */
return (SK_MC_ILLEGAL_PORT);
}
#endif /* 0 */
#ifdef DEBUG
if (pAC->Addr.Port[PortNumber].NextExactMatchDrv <
SK_ADDR_FIRST_MATCH_DRV) {
Next0[PortNumber] |= 2;
return (SK_MC_RLMT_OVERFLOW);
}
#endif /* DEBUG */
if (pAC->Addr.Port[PortNumber].NextExactMatchDrv <= SK_ADDR_LAST_MATCH_DRV) {
/* Set exact match entry. */
pAC->Addr.Port[PortNumber].Exact[
pAC->Addr.Port[PortNumber].NextExactMatchDrv++] = *pMc;
/* Clear InexactFilter. */
for (i = 0; i < 8; i++) {
pAC->Addr.Port[PortNumber].InexactFilter.Bytes[i] = 0;
}
}
else {
if (!(pMc->a[0] & SK_MC_BIT)) {
/*
* Hashing only possible with
* multicast addresses.
*/
return (SK_MC_ILLEGAL_ADDRESS);
}
#ifndef SK_ADDR_CHEAT
/* Compute hash value of address. */
HashBit = 63 - SkCrc32McHash(&pMc->a[0]);
/* Add bit to InexactFilter. */
pAC->Addr.Port[PortNumber].InexactFilter.Bytes[HashBit / 8] |=
1 << (HashBit % 8);
#else /* SK_ADDR_CHEAT */
/* Set all bits in InexactFilter. */
for (i = 0; i < 8; i++) {
pAC->Addr.Port[PortNumber].InexactFilter.Bytes[i] = 0xFF;
}
#endif /* SK_ADDR_CHEAT */
}
for (Inexact = 0, i = 0; i < 8; i++) {
Inexact |= pAC->Addr.Port[PortNumber].InexactFilter.Bytes[i];
}
if (Inexact == 0 && pAC->Addr.Port[PortNumber].PromMode == 0) {
return (SK_MC_FILTERING_EXACT);
}
else {
return (SK_MC_FILTERING_INEXACT);
}
} /* SkAddrMcAdd */
/******************************************************************************
*
* SkAddrMcUpdate - update the HW MC address table and set the MAC address
*
* Description:
* This routine enables reception of the addresses contained in a local
* table for a given port.
* It also programs the port's current physical MAC address.
*
* Notes:
* The return code is only valid for SK_PROM_MODE_NONE.
*
* Context:
* runtime, pageable
* may be called after SK_INIT_IO
*
* Returns:
* SK_MC_FILTERING_EXACT
* SK_MC_FILTERING_INEXACT
* SK_ADDR_ILLEGAL_PORT
*/
int SkAddrMcUpdate(
SK_AC *pAC, /* adapter context */
SK_IOC IoC, /* I/O context */
SK_U32 PortNumber) /* Port Number */
{
SK_U32 i;
SK_U8 Inexact;
SK_U16 *OutAddr;
SK_U16 LoMode; /* Lower 16 bits of XMAC Mode Reg. */
SK_ADDR_PORT *pAPort;
if (PortNumber >= (SK_U32)pAC->GIni.GIMacsFound) {
return (SK_ADDR_ILLEGAL_PORT);
}
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_CTRL,
("SkAddrMcUpdate on Port %u.\n", PortNumber))
pAPort = &pAC->Addr.Port[PortNumber];
#ifdef DEBUG
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_CTRL,
("Next0 on Port %d: %d\n", PortNumber, Next0[PortNumber]))
#endif /* DEBUG */
/* Start with 0 to also program the logical MAC address. */
for (i = 0; i < pAPort->NextExactMatchRlmt; i++) {
/* Set exact match address i on HW. */
OutAddr = (SK_U16 *)&pAPort->Exact[i].a[0];
XM_OUTADDR(IoC, PortNumber, XM_EXM(i), OutAddr);
}
/* Clear other permanent exact match addresses on HW. */
if (pAPort->NextExactMatchRlmt <= SK_ADDR_LAST_MATCH_RLMT) {
SkXmClrExactAddr(
pAC,
IoC,
PortNumber,
pAPort->NextExactMatchRlmt,
SK_ADDR_LAST_MATCH_RLMT);
}
for (i = pAPort->FirstExactMatchDrv; i < pAPort->NextExactMatchDrv; i++) {
OutAddr = (SK_U16 *)&pAPort->Exact[i].a[0];
XM_OUTADDR(IoC, PortNumber, XM_EXM(i), OutAddr);
}
/* Clear other non-permanent exact match addresses on HW. */
if (pAPort->NextExactMatchDrv <= SK_ADDR_LAST_MATCH_DRV) {
SkXmClrExactAddr(
pAC,
IoC,
PortNumber,
pAPort->NextExactMatchDrv,
SK_ADDR_LAST_MATCH_DRV);
}
for (Inexact = 0, i = 0; i < 8; i++) {
Inexact |= pAPort->InexactFilter.Bytes[i];
}
if (pAPort->PromMode & SK_PROM_MODE_ALL_MC) {
/* Set all bits in 64-bit hash register. */
XM_OUTHASH(IoC, PortNumber, XM_HSM, &OnesHash);
/* Set bit 15 in mode register. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
LoMode |= XM_MD_ENA_HSH;
XM_OUT16(IoC, PortNumber, XM_MODE, LoMode);
}
else if (Inexact != 0) {
/* Set 64-bit hash register to InexactFilter. */
XM_OUTHASH(IoC, PortNumber, XM_HSM, &pAPort->InexactFilter.Bytes[0]);
/* Set bit 15 in mode register. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
LoMode |= XM_MD_ENA_HSH;
XM_OUT16(IoC, PortNumber, XM_MODE, LoMode);
}
else {
/* Clear bit 15 in mode register. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
LoMode &= ~XM_MD_ENA_HSH;
XM_OUT16(IoC, PortNumber, XM_MODE, LoMode);
}
if (pAPort->PromMode != SK_PROM_MODE_NONE) {
(void)SkAddrPromiscuousChange(pAC, IoC, PortNumber, pAPort->PromMode);
}
/* Set port's current MAC address. */
OutAddr = (SK_U16 *)&pAPort->CurrentMacAddress.a[0];
XM_OUTADDR(IoC, PortNumber, XM_SA, OutAddr);
#ifdef xDEBUG
for (i = 0; i < pAPort->NextExactMatchRlmt; i++) {
SK_U8 InAddr8[6];
SK_U16 *InAddr;
/* Get exact match address i from port PortNumber. */
InAddr = (SK_U16 *)&InAddr8[0];
XM_INADDR(IoC, PortNumber, XM_EXM(i), InAddr);
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_CTRL,
("MC address %d on Port %u: %02x %02x %02x %02x %02x %02x -- %02x %02x %02x %02x %02x %02x.\n",
i,
PortNumber,
InAddr8[0],
InAddr8[1],
InAddr8[2],
InAddr8[3],
InAddr8[4],
InAddr8[5],
pAPort->Exact[i].a[0],
pAPort->Exact[i].a[1],
pAPort->Exact[i].a[2],
pAPort->Exact[i].a[3],
pAPort->Exact[i].a[4],
pAPort->Exact[i].a[5]))
}
#endif /* DEBUG */
/* Determine return value. */
if (Inexact == 0 && pAPort->PromMode == 0) {
return (SK_MC_FILTERING_EXACT);
}
else {
return (SK_MC_FILTERING_INEXACT);
}
} /* SkAddrMcUpdate */
/******************************************************************************
*
* SkAddrOverride - override a port's MAC address
*
* Description:
* This routine overrides the MAC address of one port.
*
* Context:
* runtime, pageable
* may be called after SK_INIT_IO
*
* Returns:
* SK_ADDR_SUCCESS if successful.
* SK_ADDR_DUPLICATE_ADDRESS if duplicate MAC address.
* SK_ADDR_MULTICAST_ADDRESS if multicast or broadcast address.
* SK_ADDR_TOO_EARLY if SK_INIT_IO was not executed before.
*/
int SkAddrOverride(
SK_AC *pAC, /* adapter context */
SK_IOC IoC, /* I/O context */
SK_U32 PortNumber, /* Port Number */
SK_MAC_ADDR *pNewAddr, /* new MAC address */
int Flags) /* logical/physical MAC address */
{
SK_EVPARA Para;
SK_U32 NetNumber;
SK_U32 i;
SK_U16 *OutAddr;
NetNumber = pAC->Rlmt.Port[PortNumber].Net->NetNumber;
if (PortNumber >= (SK_U32)pAC->GIni.GIMacsFound) {
return (SK_ADDR_ILLEGAL_PORT);
}
if (pNewAddr != NULL && (pNewAddr->a[0] & SK_MC_BIT) != 0) {
return (SK_ADDR_MULTICAST_ADDRESS);
}
if (!pAC->Addr.Net[NetNumber].CurrentMacAddressSet) {
return (SK_ADDR_TOO_EARLY);
}
if (Flags & SK_ADDR_SET_LOGICAL) { /* Activate logical MAC address. */
/* Parameter *pNewAddr is ignored. */
for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
if (!pAC->Addr.Port[i].CurrentMacAddressSet) {
return (SK_ADDR_TOO_EARLY);
}
}
/* Set PortNumber to number of net's active port. */
PortNumber = pAC->Rlmt.Net[NetNumber].
Port[pAC->Addr.Net[NetNumber].ActivePort]->PortNumber;
pAC->Addr.Port[PortNumber].Exact[0] =
pAC->Addr.Net[NetNumber].CurrentMacAddress;
/* Write address to first exact match entry of active port. */
(void)SkAddrMcUpdate(pAC, IoC, PortNumber);
}
else if (Flags & SK_ADDR_CLEAR_LOGICAL) {
/* Deactivate logical MAC address. */
/* Parameter *pNewAddr is ignored. */
for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
if (!pAC->Addr.Port[i].CurrentMacAddressSet) {
return (SK_ADDR_TOO_EARLY);
}
}
/* Set PortNumber to number of net's active port. */
PortNumber = pAC->Rlmt.Net[NetNumber].
Port[pAC->Addr.Net[NetNumber].ActivePort]->PortNumber;
for (i = 0; i < SK_MAC_ADDR_LEN; i++ ) {
pAC->Addr.Port[PortNumber].Exact[0].a[i] = 0;
}
/* Write address to first exact match entry of active port. */
(void)SkAddrMcUpdate(pAC, IoC, PortNumber);
}
else if (Flags & SK_ADDR_PHYSICAL_ADDRESS) { /* Physical MAC address. */
if (SK_ADDR_EQUAL(pNewAddr->a,
pAC->Addr.Net[NetNumber].CurrentMacAddress.a)) {
return (SK_ADDR_DUPLICATE_ADDRESS);
}
for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
if (!pAC->Addr.Port[i].CurrentMacAddressSet) {
return (SK_ADDR_TOO_EARLY);
}
if (SK_ADDR_EQUAL(pNewAddr->a,
pAC->Addr.Port[i].CurrentMacAddress.a)) {
if (i == PortNumber) {
return (SK_ADDR_SUCCESS);
}
else {
return (SK_ADDR_DUPLICATE_ADDRESS);
}
}
}
pAC->Addr.Port[PortNumber].PreviousMacAddress =
pAC->Addr.Port[PortNumber].CurrentMacAddress;
pAC->Addr.Port[PortNumber].CurrentMacAddress = *pNewAddr;
/* Change port's address. */
OutAddr = (SK_U16 *)pNewAddr;
XM_OUTADDR(IoC, PortNumber, XM_SA, OutAddr);
/* Report address change to RLMT. */
Para.Para32[0] = PortNumber;
Para.Para32[0] = -1;
SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_PORT_ADDR, Para);
}
else { /* Logical MAC address. */
if (SK_ADDR_EQUAL(pNewAddr->a,
pAC->Addr.Net[NetNumber].CurrentMacAddress.a)) {
return (SK_ADDR_SUCCESS);
}
for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
if (!pAC->Addr.Port[i].CurrentMacAddressSet) {
return (SK_ADDR_TOO_EARLY);
}
if (SK_ADDR_EQUAL(pNewAddr->a,
pAC->Addr.Port[i].CurrentMacAddress.a)) {
return (SK_ADDR_DUPLICATE_ADDRESS);
}
}
/* Set PortNumber to number of net's active port. */
PortNumber = pAC->Rlmt.Net[NetNumber].
Port[pAC->Addr.Net[NetNumber].ActivePort]->PortNumber;
pAC->Addr.Net[NetNumber].CurrentMacAddress = *pNewAddr;
pAC->Addr.Port[PortNumber].Exact[0] = *pNewAddr;
#ifdef DEBUG
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_CTRL,
("Permanent MAC Address: %02X %02X %02X %02X %02X %02X\n",
pAC->Addr.Net[NetNumber].PermanentMacAddress.a[0],
pAC->Addr.Net[NetNumber].PermanentMacAddress.a[1],
pAC->Addr.Net[NetNumber].PermanentMacAddress.a[2],
pAC->Addr.Net[NetNumber].PermanentMacAddress.a[3],
pAC->Addr.Net[NetNumber].PermanentMacAddress.a[4],
pAC->Addr.Net[NetNumber].PermanentMacAddress.a[5]))
SK_DBG_MSG(
pAC,
SK_DBGMOD_ADDR,
SK_DBGCAT_CTRL,
("New logical MAC Address: %02X %02X %02X %02X %02X %02X\n",
pAC->Addr.Net[NetNumber].CurrentMacAddress.a[0],
pAC->Addr.Net[NetNumber].CurrentMacAddress.a[1],
pAC->Addr.Net[NetNumber].CurrentMacAddress.a[2],
pAC->Addr.Net[NetNumber].CurrentMacAddress.a[3],
pAC->Addr.Net[NetNumber].CurrentMacAddress.a[4],
pAC->Addr.Net[NetNumber].CurrentMacAddress.a[5]))
#endif /* DEBUG */
/* Write address to first exact match entry of active port. */
(void)SkAddrMcUpdate(pAC, IoC, PortNumber);
}
return (SK_ADDR_SUCCESS);
} /* SkAddrOverride */
/******************************************************************************
*
* SkAddrPromiscuousChange - set promiscuous mode for given port
*
* Description:
* This routine manages promiscuous mode:
* - none
* - all LLC frames
* - all MC frames
*
* Context:
* runtime, pageable
* may be called after SK_INIT_IO
*
* Returns:
* SK_ADDR_SUCCESS
* SK_ADDR_ILLEGAL_PORT
*/
int SkAddrPromiscuousChange(
SK_AC *pAC, /* adapter context */
SK_IOC IoC, /* I/O context */
SK_U32 PortNumber, /* port whose promiscuous mode changes */
int NewPromMode) /* new promiscuous mode */
{
int i;
SK_BOOL InexactModeBit;
SK_U8 Inexact;
SK_U8 HwInexact;
SK_FILTER64 HwInexactFilter;
SK_U16 LoMode; /* Lower 16 bits of XMAC Mode Register. */
int CurPromMode = SK_PROM_MODE_NONE;
if (PortNumber >= (SK_U32)pAC->GIni.GIMacsFound) {
return (SK_ADDR_ILLEGAL_PORT);
}
/* Read CurPromMode from Hardware. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
if (LoMode & XM_MD_ENA_PROM) {
CurPromMode |= SK_PROM_MODE_LLC;
}
for (Inexact = 0xFF, i = 0; i < 8; i++) {
Inexact &= pAC->Addr.Port[PortNumber].InexactFilter.Bytes[i];
}
if (Inexact == 0xFF) {
CurPromMode |= (pAC->Addr.Port[PortNumber].PromMode & SK_PROM_MODE_ALL_MC);
}
else {
/* Read InexactModeBit (bit 15 in mode register). */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
InexactModeBit = (LoMode & XM_MD_ENA_HSH) != 0;
/* Read 64-bit hash register from HW. */
XM_INHASH(IoC, PortNumber, XM_HSM, &HwInexactFilter.Bytes[0]);
for (HwInexact = 0xFF, i = 0; i < 8; i++) {
HwInexact &= HwInexactFilter.Bytes[i];
}
if (InexactModeBit && (HwInexact == 0xFF)) {
CurPromMode |= SK_PROM_MODE_ALL_MC;
}
}
pAC->Addr.Port[PortNumber].PromMode = NewPromMode;
if (NewPromMode == CurPromMode) {
return (SK_ADDR_SUCCESS);
}
if ((NewPromMode & SK_PROM_MODE_ALL_MC) &&
!(CurPromMode & SK_PROM_MODE_ALL_MC)) { /* All MC. */
/* Set all bits in 64-bit hash register. */
XM_OUTHASH(IoC, PortNumber, XM_HSM, &OnesHash);
/* Set bit 15 in mode register. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
LoMode |= XM_MD_ENA_HSH;
XM_OUT16(IoC, PortNumber, XM_MODE, LoMode);
}
else if ((CurPromMode & SK_PROM_MODE_ALL_MC) &&
!(NewPromMode & SK_PROM_MODE_ALL_MC)) { /* Norm MC. */
for (Inexact = 0, i = 0; i < 8; i++) {
Inexact |= pAC->Addr.Port[PortNumber].InexactFilter.Bytes[i];
}
if (Inexact == 0) {
/* Clear bit 15 in mode register. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
LoMode &= ~XM_MD_ENA_HSH;
XM_OUT16(IoC, PortNumber, XM_MODE, LoMode);
}
else {
/* Set 64-bit hash register to InexactFilter. */
XM_OUTHASH(
IoC,
PortNumber,
XM_HSM,
&pAC->Addr.Port[PortNumber].InexactFilter.Bytes[0]);
/* Set bit 15 in mode register. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
LoMode |= XM_MD_ENA_HSH;
XM_OUT16(IoC, PortNumber, XM_MODE, LoMode);
}
}
if ((NewPromMode & SK_PROM_MODE_LLC) &&
!(CurPromMode & SK_PROM_MODE_LLC)) { /* Prom. LLC */
/* Set promiscuous bit in mode register. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
#if 0
/* Receive MAC frames. */
LoMode |= XM_MD_RX_MCTRL;
#endif /* 0 */
LoMode |= XM_MD_ENA_PROM;
XM_OUT16(IoC, PortNumber, XM_MODE, LoMode);
}
else if ((CurPromMode & SK_PROM_MODE_LLC) &&
!(NewPromMode & SK_PROM_MODE_LLC)) { /* Norm. LLC. */
/* Clear promiscuous bit in mode register. */
XM_IN16(IoC, PortNumber, XM_MODE, &LoMode);
#if 0
/* Don't receive MAC frames. */
LoMode &= ~XM_MD_RX_MCTRL;
#endif /* 0 */
LoMode &= ~XM_MD_ENA_PROM;
XM_OUT16(IoC, PortNumber, XM_MODE, LoMode);
}
return (SK_ADDR_SUCCESS);
} /* SkAddrPromiscuousChange */
/******************************************************************************
*
* SkAddrSwap - swap address info
*
* Description:
* This routine swaps address info of two ports.
*
* Context:
* runtime, pageable
* may be called after SK_INIT_IO
*
* Returns:
* SK_ADDR_SUCCESS
* SK_ADDR_ILLEGAL_PORT
*/
int SkAddrSwap(
SK_AC *pAC, /* adapter context */
SK_IOC IoC, /* I/O context */
SK_U32 FromPortNumber, /* Port1 Index */
SK_U32 ToPortNumber) /* Port2 Index */
{
int i;
SK_U8 Byte;
SK_MAC_ADDR MacAddr;
SK_U32 DWord;
if (FromPortNumber >= (SK_U32)pAC->GIni.GIMacsFound) {
return (SK_ADDR_ILLEGAL_PORT);
}
if (ToPortNumber >= (SK_U32)pAC->GIni.GIMacsFound) {
return (SK_ADDR_ILLEGAL_PORT);
}
if (pAC->Rlmt.Port[FromPortNumber].Net != pAC->Rlmt.Port[ToPortNumber].Net) {
return (SK_ADDR_ILLEGAL_PORT);
}
/*
* Swap
* - Exact Match Entries
* - FirstExactMatchRlmt;
* - NextExactMatchRlmt;
* - FirstExactMatchDrv;
* - NextExactMatchDrv;
* - 64-bit filter
* - Promiscuous Mode
* of ports.
*/
for (i = 0; i < SK_ADDR_EXACT_MATCHES; i++) {
MacAddr = pAC->Addr.Port[FromPortNumber].Exact[i];
pAC->Addr.Port[FromPortNumber].Exact[i] =
pAC->Addr.Port[ToPortNumber].Exact[i];
pAC->Addr.Port[ToPortNumber].Exact[i] = MacAddr;
}
for (i = 0; i < 8; i++) {
Byte = pAC->Addr.Port[FromPortNumber].InexactFilter.Bytes[i];
pAC->Addr.Port[FromPortNumber].InexactFilter.Bytes[i] =
pAC->Addr.Port[ToPortNumber].InexactFilter.Bytes[i];
pAC->Addr.Port[ToPortNumber].InexactFilter.Bytes[i] = Byte;
}
i = pAC->Addr.Port[FromPortNumber].PromMode;
pAC->Addr.Port[FromPortNumber].PromMode = pAC->Addr.Port[ToPortNumber].PromMode;
pAC->Addr.Port[ToPortNumber].PromMode = i;
DWord = pAC->Addr.Port[FromPortNumber].FirstExactMatchRlmt;
pAC->Addr.Port[FromPortNumber].FirstExactMatchRlmt =
pAC->Addr.Port[ToPortNumber].FirstExactMatchRlmt;
pAC->Addr.Port[ToPortNumber].FirstExactMatchRlmt = DWord;
DWord = pAC->Addr.Port[FromPortNumber].NextExactMatchRlmt;
pAC->Addr.Port[FromPortNumber].NextExactMatchRlmt =
pAC->Addr.Port[ToPortNumber].NextExactMatchRlmt;
pAC->Addr.Port[ToPortNumber].NextExactMatchRlmt = DWord;
DWord = pAC->Addr.Port[FromPortNumber].FirstExactMatchDrv;
pAC->Addr.Port[FromPortNumber].FirstExactMatchDrv =
pAC->Addr.Port[ToPortNumber].FirstExactMatchDrv;
pAC->Addr.Port[ToPortNumber].FirstExactMatchDrv = DWord;
DWord = pAC->Addr.Port[FromPortNumber].NextExactMatchDrv;
pAC->Addr.Port[FromPortNumber].NextExactMatchDrv =
pAC->Addr.Port[ToPortNumber].NextExactMatchDrv;
pAC->Addr.Port[ToPortNumber].NextExactMatchDrv = DWord;
/* CAUTION: Solution works if only ports of one adapter are in use. */
for (i = 0; (SK_U32)i < pAC->Rlmt.Net[pAC->Rlmt.Port[ToPortNumber].
Net->NetNumber].NumPorts; i++) {
if (pAC->Rlmt.Net[pAC->Rlmt.Port[ToPortNumber].Net->NetNumber].
Port[i]->PortNumber == ToPortNumber) {
pAC->Addr.Net[pAC->Rlmt.Port[ToPortNumber].Net->NetNumber].
ActivePort = i;
/* 20001207 RA: Was "ToPortNumber;". */
}
}
(void)SkAddrMcUpdate(pAC, IoC, FromPortNumber);
(void)SkAddrMcUpdate(pAC, IoC, ToPortNumber);
return (SK_ADDR_SUCCESS);
} /* SkAddrSwap */
#ifdef __cplusplus
}
#endif /* __cplusplus */
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