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-rw-r--r--drivers/net/sk98lin/h/skcsum.h213
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diff --git a/drivers/net/sk98lin/h/skcsum.h b/drivers/net/sk98lin/h/skcsum.h
deleted file mode 100644
index 6e256bd9a28c..000000000000
--- a/drivers/net/sk98lin/h/skcsum.h
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1/******************************************************************************
2 *
3 * Name: skcsum.h
4 * Project: GEnesis - SysKonnect SK-NET Gigabit Ethernet (SK-98xx)
5 * Version: $Revision: 1.10 $
6 * Date: $Date: 2003/08/20 13:59:57 $
7 * Purpose: Store/verify Internet checksum in send/receive packets.
8 *
9 ******************************************************************************/
10
11/******************************************************************************
12 *
13 * (C)Copyright 1998-2001 SysKonnect GmbH.
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * The information in this file is provided "AS IS" without warranty.
21 *
22 ******************************************************************************/
23
24/******************************************************************************
25 *
26 * Description:
27 *
28 * Public header file for the "GEnesis" common module "CSUM".
29 *
30 * "GEnesis" is an abbreviation of "Gigabit Ethernet Network System in Silicon"
31 * and is the code name of this SysKonnect project.
32 *
33 * Compilation Options:
34 *
35 * SK_USE_CSUM - Define if CSUM is to be used. Otherwise, CSUM will be an
36 * empty module.
37 *
38 * SKCS_OVERWRITE_PROTO - Define to overwrite the default protocol id
39 * definitions. In this case, all SKCS_PROTO_xxx definitions must be made
40 * external.
41 *
42 * SKCS_OVERWRITE_STATUS - Define to overwrite the default return status
43 * definitions. In this case, all SKCS_STATUS_xxx definitions must be made
44 * external.
45 *
46 * Include File Hierarchy:
47 *
48 * "h/skcsum.h"
49 * "h/sktypes.h"
50 * "h/skqueue.h"
51 *
52 ******************************************************************************/
53
54#ifndef __INC_SKCSUM_H
55#define __INC_SKCSUM_H
56
57#include "h/sktypes.h"
58#include "h/skqueue.h"
59
60/* defines ********************************************************************/
61
62/*
63 * Define the default bit flags for 'SKCS_PACKET_INFO.ProtocolFlags' if no user
64 * overwrite.
65 */
66#ifndef SKCS_OVERWRITE_PROTO /* User overwrite? */
67#define SKCS_PROTO_IP 0x1 /* IP (Internet Protocol version 4) */
68#define SKCS_PROTO_TCP 0x2 /* TCP (Transmission Control Protocol) */
69#define SKCS_PROTO_UDP 0x4 /* UDP (User Datagram Protocol) */
70
71/* Indices for protocol statistics. */
72#define SKCS_PROTO_STATS_IP 0
73#define SKCS_PROTO_STATS_UDP 1
74#define SKCS_PROTO_STATS_TCP 2
75#define SKCS_NUM_PROTOCOLS 3 /* Number of supported protocols. */
76#endif /* !SKCS_OVERWRITE_PROTO */
77
78/*
79 * Define the default SKCS_STATUS type and values if no user overwrite.
80 *
81 * SKCS_STATUS_UNKNOWN_IP_VERSION - Not an IP v4 frame.
82 * SKCS_STATUS_IP_CSUM_ERROR - IP checksum error.
83 * SKCS_STATUS_IP_CSUM_ERROR_TCP - IP checksum error in TCP frame.
84 * SKCS_STATUS_IP_CSUM_ERROR_UDP - IP checksum error in UDP frame
85 * SKCS_STATUS_IP_FRAGMENT - IP fragment (IP checksum ok).
86 * SKCS_STATUS_IP_CSUM_OK - IP checksum ok (not a TCP or UDP frame).
87 * SKCS_STATUS_TCP_CSUM_ERROR - TCP checksum error (IP checksum ok).
88 * SKCS_STATUS_UDP_CSUM_ERROR - UDP checksum error (IP checksum ok).
89 * SKCS_STATUS_TCP_CSUM_OK - IP and TCP checksum ok.
90 * SKCS_STATUS_UDP_CSUM_OK - IP and UDP checksum ok.
91 * SKCS_STATUS_IP_CSUM_OK_NO_UDP - IP checksum OK and no UDP checksum.
92 */
93#ifndef SKCS_OVERWRITE_STATUS /* User overwrite? */
94#define SKCS_STATUS int /* Define status type. */
95
96#define SKCS_STATUS_UNKNOWN_IP_VERSION 1
97#define SKCS_STATUS_IP_CSUM_ERROR 2
98#define SKCS_STATUS_IP_FRAGMENT 3
99#define SKCS_STATUS_IP_CSUM_OK 4
100#define SKCS_STATUS_TCP_CSUM_ERROR 5
101#define SKCS_STATUS_UDP_CSUM_ERROR 6
102#define SKCS_STATUS_TCP_CSUM_OK 7
103#define SKCS_STATUS_UDP_CSUM_OK 8
104/* needed for Microsoft */
105#define SKCS_STATUS_IP_CSUM_ERROR_UDP 9
106#define SKCS_STATUS_IP_CSUM_ERROR_TCP 10
107/* UDP checksum may be omitted */
108#define SKCS_STATUS_IP_CSUM_OK_NO_UDP 11
109#endif /* !SKCS_OVERWRITE_STATUS */
110
111/* Clear protocol statistics event. */
112#define SK_CSUM_EVENT_CLEAR_PROTO_STATS 1
113
114/*
115 * Add two values in one's complement.
116 *
117 * Note: One of the two input values may be "longer" than 16-bit, but then the
118 * resulting sum may be 17 bits long. In this case, add zero to the result using
119 * SKCS_OC_ADD() again.
120 *
121 * Result = Value1 + Value2
122 */
123#define SKCS_OC_ADD(Result, Value1, Value2) { \
124 unsigned long Sum; \
125 \
126 Sum = (unsigned long) (Value1) + (unsigned long) (Value2); \
127 /* Add-in any carry. */ \
128 (Result) = (Sum & 0xffff) + (Sum >> 16); \
129}
130
131/*
132 * Subtract two values in one's complement.
133 *
134 * Result = Value1 - Value2
135 */
136#define SKCS_OC_SUB(Result, Value1, Value2) \
137 SKCS_OC_ADD((Result), (Value1), ~(Value2) & 0xffff)
138
139/* typedefs *******************************************************************/
140
141/*
142 * SKCS_PROTO_STATS - The CSUM protocol statistics structure.
143 *
144 * There is one instance of this structure for each protocol supported.
145 */
146typedef struct s_CsProtocolStatistics {
147 SK_U64 RxOkCts; /* Receive checksum ok. */
148 SK_U64 RxUnableCts; /* Unable to verify receive checksum. */
149 SK_U64 RxErrCts; /* Receive checksum error. */
150 SK_U64 TxOkCts; /* Transmit checksum ok. */
151 SK_U64 TxUnableCts; /* Unable to calculate checksum in hw. */
152} SKCS_PROTO_STATS;
153
154/*
155 * s_Csum - The CSUM module context structure.
156 */
157typedef struct s_Csum {
158 /* Enabled receive SK_PROTO_XXX bit flags. */
159 unsigned ReceiveFlags[SK_MAX_NETS];
160#ifdef TX_CSUM
161 unsigned TransmitFlags[SK_MAX_NETS];
162#endif /* TX_CSUM */
163
164 /* The protocol statistics structure; one per supported protocol. */
165 SKCS_PROTO_STATS ProtoStats[SK_MAX_NETS][SKCS_NUM_PROTOCOLS];
166} SK_CSUM;
167
168/*
169 * SKCS_PACKET_INFO - The packet information structure.
170 */
171typedef struct s_CsPacketInfo {
172 /* Bit field specifiying the desired/found protocols. */
173 unsigned ProtocolFlags;
174
175 /* Length of complete IP header, including any option fields. */
176 unsigned IpHeaderLength;
177
178 /* IP header checksum. */
179 unsigned IpHeaderChecksum;
180
181 /* TCP/UDP pseudo header checksum. */
182 unsigned PseudoHeaderChecksum;
183} SKCS_PACKET_INFO;
184
185/* function prototypes ********************************************************/
186
187#ifndef SK_CS_CALCULATE_CHECKSUM
188extern unsigned SkCsCalculateChecksum(
189 void *pData,
190 unsigned Length);
191#endif /* SK_CS_CALCULATE_CHECKSUM */
192
193extern int SkCsEvent(
194 SK_AC *pAc,
195 SK_IOC Ioc,
196 SK_U32 Event,
197 SK_EVPARA Param);
198
199extern SKCS_STATUS SkCsGetReceiveInfo(
200 SK_AC *pAc,
201 void *pIpHeader,
202 unsigned Checksum1,
203 unsigned Checksum2,
204 int NetNumber);
205
206extern void SkCsSetReceiveFlags(
207 SK_AC *pAc,
208 unsigned ReceiveFlags,
209 unsigned *pChecksum1Offset,
210 unsigned *pChecksum2Offset,
211 int NetNumber);
212
213#endif /* __INC_SKCSUM_H */
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