* 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
diff --git a/drivers/sk98lin/h/skcsum.h b/drivers/sk98lin/h/skcsum.h
new file mode 100644
index 0000000..b7226f1
--- /dev/null
+++ b/drivers/sk98lin/h/skcsum.h
@@ -0,0 +1,261 @@
+/******************************************************************************
+ *
+ * Name: skcsum.h
+ * Project: GEnesis - SysKonnect SK-NET Gigabit Ethernet (SK-98xx)
+ * Version: $Revision: 1.9 $
+ * Date: $Date: 2001/02/06 11:21:39 $
+ * Purpose: Store/verify Internet checksum in send/receive packets.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * (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: skcsum.h,v $
+ * Revision 1.9 2001/02/06 11:21:39 rassmann
+ * Editorial changes.
+ *
+ * Revision 1.8 2001/02/06 11:15:36 rassmann
+ * Supporting two nets on dual-port adapters.
+ *
+ * Revision 1.7 2000/06/29 13:17:05 rassmann
+ * Corrected reception of a packet with UDP checksum == 0 (which means there
+ * is no UDP checksum).
+ *
+ * Revision 1.6 2000/02/28 12:33:44 cgoos
+ * Changed C++ style comments to C style.
+ *
+ * Revision 1.5 2000/02/21 12:10:05 cgoos
+ * Fixed license comment.
+ *
+ * Revision 1.4 2000/02/21 11:08:37 cgoos
+ * Merged changes back into common source.
+ *
+ * Revision 1.1 1999/07/26 14:47:49 mkarl
+ * changed from common source to windows specific source
+ * added return SKCS_STATUS_IP_CSUM_ERROR_UDP and
+ * SKCS_STATUS_IP_CSUM_ERROR_TCP to pass the NidsTester
+ * changes for Tx csum offload
+ *
+ * Revision 1.2 1998/09/04 12:16:34 mhaveman
+ * Checked in for Stephan to allow compilation.
+ * -Added definition SK_CSUM_EVENT_CLEAR_PROTO_STATS to clear statistic
+ * -Added prototype for SkCsEvent()
+ *
+ * Revision 1.1 1998/09/01 15:36:53 swolf
+ * initial revision
+ *
+ * 01-Sep-1998 sw Created.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * Description:
+ *
+ * Public header file for the "GEnesis" common module "CSUM".
+ *
+ * "GEnesis" is an abbreviation of "Gigabit Ethernet Network System in Silicon"
+ * and is the code name of this SysKonnect project.
+ *
+ * Compilation Options:
+ *
+ * SK_USE_CSUM - Define if CSUM is to be used. Otherwise, CSUM will be an
+ * empty module.
+ *
+ * SKCS_OVERWRITE_PROTO - Define to overwrite the default protocol id
+ * definitions. In this case, all SKCS_PROTO_xxx definitions must be made
+ * external.
+ *
+ * SKCS_OVERWRITE_STATUS - Define to overwrite the default return status
+ * definitions. In this case, all SKCS_STATUS_xxx definitions must be made
+ * external.
+ *
+ * Include File Hierarchy:
+ *
+ * "h/skcsum.h"
+ * "h/sktypes.h"
+ * "h/skqueue.h"
+ *
+ ******************************************************************************/
+
+#ifndef __INC_SKCSUM_H
+#define __INC_SKCSUM_H
+
+#include "h/sktypes.h"
+#include "h/skqueue.h"
+
+/* defines ********************************************************************/
+
+/*
+ * Define the default bit flags for 'SKCS_PACKET_INFO.ProtocolFlags' if no user
+ * overwrite.
+ */
+#ifndef SKCS_OVERWRITE_PROTO /* User overwrite? */
+#define SKCS_PROTO_IP 0x1 /* IP (Internet Protocol version 4) */
+#define SKCS_PROTO_TCP 0x2 /* TCP (Transmission Control Protocol) */
+#define SKCS_PROTO_UDP 0x4 /* UDP (User Datagram Protocol) */
+
+/* Indices for protocol statistics. */
+#define SKCS_PROTO_STATS_IP 0
+#define SKCS_PROTO_STATS_UDP 1
+#define SKCS_PROTO_STATS_TCP 2
+#define SKCS_NUM_PROTOCOLS 3 /* Number of supported protocols. */
+#endif /* !SKCS_OVERWRITE_PROTO */
+
+/*
+ * Define the default SKCS_STATUS type and values if no user overwrite.
+ *
+ * SKCS_STATUS_UNKNOWN_IP_VERSION - Not an IP v4 frame.
+ * SKCS_STATUS_IP_CSUM_ERROR - IP checksum error.
+ * SKCS_STATUS_IP_CSUM_ERROR_TCP - IP checksum error in TCP frame.
+ * SKCS_STATUS_IP_CSUM_ERROR_UDP - IP checksum error in UDP frame
+ * SKCS_STATUS_IP_FRAGMENT - IP fragment (IP checksum ok).
+ * SKCS_STATUS_IP_CSUM_OK - IP checksum ok (not a TCP or UDP frame).
+ * SKCS_STATUS_TCP_CSUM_ERROR - TCP checksum error (IP checksum ok).
+ * SKCS_STATUS_UDP_CSUM_ERROR - UDP checksum error (IP checksum ok).
+ * SKCS_STATUS_TCP_CSUM_OK - IP and TCP checksum ok.
+ * SKCS_STATUS_UDP_CSUM_OK - IP and UDP checksum ok.
+ * SKCS_STATUS_IP_CSUM_OK_NO_UDP - IP checksum OK and no UDP checksum.
+ */
+#ifndef SKCS_OVERWRITE_STATUS /* User overwrite? */
+#define SKCS_STATUS int /* Define status type. */
+
+#define SKCS_STATUS_UNKNOWN_IP_VERSION 1
+#define SKCS_STATUS_IP_CSUM_ERROR 2
+#define SKCS_STATUS_IP_FRAGMENT 3
+#define SKCS_STATUS_IP_CSUM_OK 4
+#define SKCS_STATUS_TCP_CSUM_ERROR 5
+#define SKCS_STATUS_UDP_CSUM_ERROR 6
+#define SKCS_STATUS_TCP_CSUM_OK 7
+#define SKCS_STATUS_UDP_CSUM_OK 8
+/* needed for Microsoft */
+#define SKCS_STATUS_IP_CSUM_ERROR_UDP 9
+#define SKCS_STATUS_IP_CSUM_ERROR_TCP 10
+/* UDP checksum may be omitted */
+#define SKCS_STATUS_IP_CSUM_OK_NO_UDP 11
+#endif /* !SKCS_OVERWRITE_STATUS */
+
+/* Clear protocol statistics event. */
+#define SK_CSUM_EVENT_CLEAR_PROTO_STATS 1
+
+/*
+ * Add two values in one's complement.
+ *
+ * Note: One of the two input values may be "longer" than 16-bit, but then the
+ * resulting sum may be 17 bits long. In this case, add zero to the result using
+ * SKCS_OC_ADD() again.
+ *
+ * Result = Value1 + Value2
+ */
+#define SKCS_OC_ADD(Result, Value1, Value2) { \
+ unsigned long Sum; \
+ \
+ Sum = (unsigned long) (Value1) + (unsigned long) (Value2); \
+ /* Add-in any carry. */ \
+ (Result) = (Sum & 0xffff) + (Sum >> 16); \
+}
+
+/*
+ * Subtract two values in one's complement.
+ *
+ * Result = Value1 - Value2
+ */
+#define SKCS_OC_SUB(Result, Value1, Value2) \
+ SKCS_OC_ADD((Result), (Value1), ~(Value2) & 0xffff)
+
+/* typedefs *******************************************************************/
+
+/*
+ * SKCS_PROTO_STATS - The CSUM protocol statistics structure.
+ *
+ * There is one instance of this structure for each protocol supported.
+ */
+typedef struct s_CsProtocolStatistics {
+ SK_U64 RxOkCts; /* Receive checksum ok. */
+ SK_U64 RxUnableCts; /* Unable to verify receive checksum. */
+ SK_U64 RxErrCts; /* Receive checksum error. */
+ SK_U64 TxOkCts; /* Transmit checksum ok. */
+ SK_U64 TxUnableCts; /* Unable to calculate checksum in hw. */
+} SKCS_PROTO_STATS;
+
+/*
+ * s_Csum - The CSUM module context structure.
+ */
+typedef struct s_Csum {
+ /* Enabled receive SK_PROTO_XXX bit flags. */
+ unsigned ReceiveFlags[SK_MAX_NETS];
+#ifdef TX_CSUM
+ unsigned TransmitFlags[SK_MAX_NETS];
+#endif /* TX_CSUM */
+
+ /* The protocol statistics structure; one per supported protocol. */
+ SKCS_PROTO_STATS ProtoStats[SK_MAX_NETS][SKCS_NUM_PROTOCOLS];
+} SK_CSUM;
+
+/*
+ * SKCS_PACKET_INFO - The packet information structure.
+ */
+typedef struct s_CsPacketInfo {
+ /* Bit field specifiying the desired/found protocols. */
+ unsigned ProtocolFlags;
+
+ /* Length of complete IP header, including any option fields. */
+ unsigned IpHeaderLength;
+
+ /* IP header checksum. */
+ unsigned IpHeaderChecksum;
+
+ /* TCP/UDP pseudo header checksum. */
+ unsigned PseudoHeaderChecksum;
+} SKCS_PACKET_INFO;
+
+/* function prototypes ********************************************************/
+
+#ifndef SkCsCalculateChecksum
+extern unsigned SkCsCalculateChecksum(
+ void *pData,
+ unsigned Length);
+#endif
+
+extern int SkCsEvent(
+ SK_AC *pAc,
+ SK_IOC Ioc,
+ SK_U32 Event,
+ SK_EVPARA Param);
+
+extern SKCS_STATUS SkCsGetReceiveInfo(
+ SK_AC *pAc,
+ void *pIpHeader,
+ unsigned Checksum1,
+ unsigned Checksum2,
+ int NetNumber);
+
+extern void SkCsGetSendInfo(
+ SK_AC *pAc,
+ void *pIpHeader,
+ SKCS_PACKET_INFO *pPacketInfo,
+ int NetNumber);
+
+extern void SkCsSetReceiveFlags(
+ SK_AC *pAc,
+ unsigned ReceiveFlags,
+ unsigned *pChecksum1Offset,
+ unsigned *pChecksum2Offset,
+ int NetNumber);
+
+#endif /* __INC_SKCSUM_H */