1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2014 The FreeBSD Foundation
5 * All rights reserved.
6 *
7 * This software was developed by Edward Tomasz Napierala under sponsorship
8 * from the FreeBSD Foundation.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD: stable/12/sys/dev/iscsi/icl_wrappers.h 328341 2018-01-24 16:58:26Z trasz $
32 */
33
34 /*
35 * This file is used to provide the initiator and target with a prettier
36 * interface. It must not be included by ICL modules, such as icl_soft.c.
37 */
38
39 #ifndef ICL_WRAPPERS_H
40 #define ICL_WRAPPERS_H
41
42 #include <sys/kobj.h>
43
44 #include <dev/iscsi/icl.h>
45 #include <icl_conn_if.h>
46
47 static inline struct icl_pdu *
icl_pdu_new(struct icl_conn * ic,int flags)48 icl_pdu_new(struct icl_conn *ic, int flags)
49 {
50
51 return (ICL_CONN_NEW_PDU(ic, flags));
52 }
53
54 static inline size_t
icl_pdu_data_segment_length(const struct icl_pdu * ip)55 icl_pdu_data_segment_length(const struct icl_pdu *ip)
56 {
57
58 return (ICL_CONN_PDU_DATA_SEGMENT_LENGTH(ip->ip_conn, ip));
59 }
60
61 static inline int
icl_pdu_append_data(struct icl_pdu * ip,const void * addr,size_t len,int flags)62 icl_pdu_append_data(struct icl_pdu *ip, const void *addr, size_t len, int flags)
63 {
64
65 return (ICL_CONN_PDU_APPEND_DATA(ip->ip_conn, ip, addr, len, flags));
66 }
67
68 static inline void
icl_pdu_get_data(struct icl_pdu * ip,size_t off,void * addr,size_t len)69 icl_pdu_get_data(struct icl_pdu *ip, size_t off, void *addr, size_t len)
70 {
71
72 ICL_CONN_PDU_GET_DATA(ip->ip_conn, ip, off, addr, len);
73 }
74
75 static inline void
icl_pdu_queue(struct icl_pdu * ip)76 icl_pdu_queue(struct icl_pdu *ip)
77 {
78
79 ICL_CONN_PDU_QUEUE(ip->ip_conn, ip);
80 }
81
82 static inline void
icl_pdu_free(struct icl_pdu * ip)83 icl_pdu_free(struct icl_pdu *ip)
84 {
85
86 ICL_CONN_PDU_FREE(ip->ip_conn, ip);
87 }
88
89 static inline void
icl_conn_free(struct icl_conn * ic)90 icl_conn_free(struct icl_conn *ic)
91 {
92
93 ICL_CONN_FREE(ic);
94 }
95
96 static inline int
icl_conn_handoff(struct icl_conn * ic,int fd)97 icl_conn_handoff(struct icl_conn *ic, int fd)
98 {
99
100 return (ICL_CONN_HANDOFF(ic, fd));
101 }
102
103 static inline void
icl_conn_close(struct icl_conn * ic)104 icl_conn_close(struct icl_conn *ic)
105 {
106
107 ICL_CONN_CLOSE(ic);
108 }
109
110 static inline int
icl_conn_task_setup(struct icl_conn * ic,struct icl_pdu * ip,struct ccb_scsiio * csio,uint32_t * task_tagp,void ** prvp)111 icl_conn_task_setup(struct icl_conn *ic, struct icl_pdu *ip,
112 struct ccb_scsiio *csio, uint32_t *task_tagp, void **prvp)
113 {
114
115 return (ICL_CONN_TASK_SETUP(ic, ip, csio, task_tagp, prvp));
116 }
117
118 static inline void
icl_conn_task_done(struct icl_conn * ic,void * prv)119 icl_conn_task_done(struct icl_conn *ic, void *prv)
120 {
121
122 ICL_CONN_TASK_DONE(ic, prv);
123 }
124
125 static inline int
icl_conn_transfer_setup(struct icl_conn * ic,union ctl_io * io,uint32_t * transfer_tagp,void ** prvp)126 icl_conn_transfer_setup(struct icl_conn *ic, union ctl_io *io,
127 uint32_t *transfer_tagp, void **prvp)
128 {
129
130 return (ICL_CONN_TRANSFER_SETUP(ic, io, transfer_tagp, prvp));
131 }
132
133 static inline void
icl_conn_transfer_done(struct icl_conn * ic,void * prv)134 icl_conn_transfer_done(struct icl_conn *ic, void *prv)
135 {
136
137 ICL_CONN_TRANSFER_DONE(ic, prv);
138 }
139
140 /*
141 * The function below is only used with ICL_KERNEL_PROXY.
142 */
143 static inline int
icl_conn_connect(struct icl_conn * ic,int domain,int socktype,int protocol,struct sockaddr * from_sa,struct sockaddr * to_sa)144 icl_conn_connect(struct icl_conn *ic, int domain, int socktype,
145 int protocol, struct sockaddr *from_sa, struct sockaddr *to_sa)
146 {
147
148 return (ICL_CONN_CONNECT(ic, domain, socktype, protocol,
149 from_sa, to_sa));
150 }
151
152 #endif /* !ICL_WRAPPERS_H */
153