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iscsi_tcp.h
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1 /*
2  * iSCSI Initiator TCP Transport
3  * Copyright (C) 2004 Dmitry Yusupov
4  * Copyright (C) 2004 Alex Aizman
5  * Copyright (C) 2005 - 2006 Mike Christie
6  * Copyright (C) 2006 Red Hat, Inc. All rights reserved.
7  * maintained by [email protected]
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published
11  * by the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * General Public License for more details.
18  *
19  * See the file COPYING included with this distribution for more details.
20  */
21 
22 #ifndef ISCSI_SW_TCP_H
23 #define ISCSI_SW_TCP_H
24 
25 #include <scsi/libiscsi.h>
26 #include <scsi/libiscsi_tcp.h>
27 
28 struct socket;
29 struct iscsi_tcp_conn;
30 
31 /* Socket connection send helper */
33  struct iscsi_hdr *hdr;
36 };
37 
39  struct socket *sock;
40 
42  /* old values for socket callbacks */
43  void (*old_data_ready)(struct sock *, int);
44  void (*old_state_change)(struct sock *);
45  void (*old_write_space)(struct sock *);
46 
47  /* data and header digests */
48  struct hash_desc tx_hash; /* CRC32C (Tx) */
49  struct hash_desc rx_hash; /* CRC32C (Rx) */
50 
51  /* MIB custom statistics */
54 
55  ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int);
56 };
57 
60 };
61 
63  struct iscsi_hdr hdrbuf;
66 };
67 
68 #endif /* ISCSI_SW_TCP_H */