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1/*
2 * Copyright(c) 2007 Intel Corporation. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
16 *
17 * Maintained at www.Open-FCoE.org
18 */
19
20#ifndef _FC_FC2_H_
21#define _FC_FC2_H_
22
23/*
24 * Fibre Channel Exchanges and Sequences.
25 */
26#ifndef PACKED
27#define PACKED __attribute__ ((__packed__))
28#endif /* PACKED */
29
30
31/*
32 * Sequence Status Block.
33 * This format is set by the FC-FS standard and is sent over the wire.
34 * Note that the fields aren't all naturally aligned.
35 */
36struct fc_ssb {
37 __u8 ssb_seq_id; /* sequence ID */
38 __u8 _ssb_resvd;
39 __be16 ssb_low_seq_cnt; /* lowest SEQ_CNT */
40
41 __be16 ssb_high_seq_cnt; /* highest SEQ_CNT */
42 __be16 ssb_s_stat; /* sequence status flags */
43
44 __be16 ssb_err_seq_cnt; /* error SEQ_CNT */
45 __u8 ssb_fh_cs_ctl; /* frame header CS_CTL */
46 __be16 ssb_fh_ox_id; /* frame header OX_ID */
47 __be16 ssb_rx_id; /* responder's exchange ID */
48 __u8 _ssb_resvd2[2];
49} PACKED;
50
51/*
52 * The SSB should be 17 bytes. Since it's layout is somewhat strange,
53 * we define the size here so that code can ASSERT that the size comes out
54 * correct.
55 */
56#define FC_SSB_SIZE 17 /* length of fc_ssb for assert */
57
58/*
59 * ssb_s_stat - flags from FC-FS-2 T11/1619-D Rev 0.90.
60 */
61#define SSB_ST_RESP (1 << 15) /* sequence responder */
62#define SSB_ST_ACTIVE (1 << 14) /* sequence is active */
63#define SSB_ST_ABNORMAL (1 << 12) /* abnormal ending condition */
64
65#define SSB_ST_REQ_MASK (3 << 10) /* ACK, abort sequence condition */
66#define SSB_ST_REQ_CONT (0 << 10)
67#define SSB_ST_REQ_ABORT (1 << 10)
68#define SSB_ST_REQ_STOP (2 << 10)
69#define SSB_ST_REQ_RETRANS (3 << 10)
70
71#define SSB_ST_ABTS (1 << 9) /* ABTS protocol completed */
72#define SSB_ST_RETRANS (1 << 8) /* retransmission completed */
73#define SSB_ST_TIMEOUT (1 << 7) /* sequence timed out by recipient */
74#define SSB_ST_P_RJT (1 << 6) /* P_RJT transmitted */
75
76#define SSB_ST_CLASS_BIT 4 /* class of service field LSB */
77#define SSB_ST_CLASS_MASK 3 /* class of service mask */
78#define SSB_ST_ACK (1 << 3) /* ACK (EOFt or EOFdt) transmitted */
79
80/*
81 * Exchange Status Block.
82 * This format is set by the FC-FS standard and is sent over the wire.
83 * Note that the fields aren't all naturally aligned.
84 */
85struct fc_esb {
86 __u8 esb_cs_ctl; /* CS_CTL for frame header */
87 __be16 esb_ox_id; /* originator exchange ID */
88 __be16 esb_rx_id; /* responder exchange ID */
89 __be32 esb_orig_fid; /* fabric ID of originator */
90 __be32 esb_resp_fid; /* fabric ID of responder */
91 __be32 esb_e_stat; /* status */
92 __u8 _esb_resvd[4];
93 __u8 esb_service_params[112]; /* TBD */
94 __u8 esb_seq_status[8]; /* sequence statuses, 8 bytes each */
95} __attribute__((packed));
96
97/*
98 * Define expected size for ASSERTs.
99 * See comments on FC_SSB_SIZE.
100 */
101#define FC_ESB_SIZE (1 + 5*4 + 112 + 8) /* expected size */
102
103/*
104 * esb_e_stat - flags from FC-FS-2 T11/1619-D Rev 0.90.
105 */
106#define ESB_ST_RESP (1 << 31) /* responder to exchange */
107#define ESB_ST_SEQ_INIT (1 << 30) /* port holds sequence initiaive */
108#define ESB_ST_COMPLETE (1 << 29) /* exchange is complete */
109#define ESB_ST_ABNORMAL (1 << 28) /* abnormal ending condition */
110#define ESB_ST_REC_QUAL (1 << 26) /* recovery qualifier active */
111
112#define ESB_ST_ERRP_BIT 24 /* LSB for error policy */
113#define ESB_ST_ERRP_MASK (3 << 24) /* mask for error policy */
114#define ESB_ST_ERRP_MULT (0 << 24) /* abort, discard multiple sequences */
115#define ESB_ST_ERRP_SING (1 << 24) /* abort, discard single sequence */
116#define ESB_ST_ERRP_INF (2 << 24) /* process with infinite buffers */
117#define ESB_ST_ERRP_IMM (3 << 24) /* discard mult. with immed. retran. */
118
119#define ESB_ST_OX_ID_INVL (1 << 23) /* originator XID invalid */
120#define ESB_ST_RX_ID_INVL (1 << 22) /* responder XID invalid */
121#define ESB_ST_PRI_INUSE (1 << 21) /* priority / preemption in use */
122
123#endif /* _FC_FC2_H_ */
1/*
2 * Copyright(c) 2007 Intel Corporation. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
16 *
17 * Maintained at www.Open-FCoE.org
18 */
19
20#ifndef _FC_FC2_H_
21#define _FC_FC2_H_
22
23/*
24 * Fibre Channel Exchanges and Sequences.
25 */
26#ifndef PACKED
27#define PACKED __attribute__ ((__packed__))
28#endif /* PACKED */
29
30
31/*
32 * Sequence Status Block.
33 * This format is set by the FC-FS standard and is sent over the wire.
34 * Note that the fields aren't all naturally aligned.
35 */
36struct fc_ssb {
37 __u8 ssb_seq_id; /* sequence ID */
38 __u8 _ssb_resvd;
39 __be16 ssb_low_seq_cnt; /* lowest SEQ_CNT */
40
41 __be16 ssb_high_seq_cnt; /* highest SEQ_CNT */
42 __be16 ssb_s_stat; /* sequence status flags */
43
44 __be16 ssb_err_seq_cnt; /* error SEQ_CNT */
45 __u8 ssb_fh_cs_ctl; /* frame header CS_CTL */
46 __be16 ssb_fh_ox_id; /* frame header OX_ID */
47 __be16 ssb_rx_id; /* responder's exchange ID */
48 __u8 _ssb_resvd2[2];
49} PACKED;
50
51/*
52 * The SSB should be 17 bytes. Since it's layout is somewhat strange,
53 * we define the size here so that code can ASSERT that the size comes out
54 * correct.
55 */
56#define FC_SSB_SIZE 17 /* length of fc_ssb for assert */
57
58/*
59 * ssb_s_stat - flags from FC-FS-2 T11/1619-D Rev 0.90.
60 */
61#define SSB_ST_RESP (1 << 15) /* sequence responder */
62#define SSB_ST_ACTIVE (1 << 14) /* sequence is active */
63#define SSB_ST_ABNORMAL (1 << 12) /* abnormal ending condition */
64
65#define SSB_ST_REQ_MASK (3 << 10) /* ACK, abort sequence condition */
66#define SSB_ST_REQ_CONT (0 << 10)
67#define SSB_ST_REQ_ABORT (1 << 10)
68#define SSB_ST_REQ_STOP (2 << 10)
69#define SSB_ST_REQ_RETRANS (3 << 10)
70
71#define SSB_ST_ABTS (1 << 9) /* ABTS protocol completed */
72#define SSB_ST_RETRANS (1 << 8) /* retransmission completed */
73#define SSB_ST_TIMEOUT (1 << 7) /* sequence timed out by recipient */
74#define SSB_ST_P_RJT (1 << 6) /* P_RJT transmitted */
75
76#define SSB_ST_CLASS_BIT 4 /* class of service field LSB */
77#define SSB_ST_CLASS_MASK 3 /* class of service mask */
78#define SSB_ST_ACK (1 << 3) /* ACK (EOFt or EOFdt) transmitted */
79
80/*
81 * Exchange Status Block.
82 * This format is set by the FC-FS standard and is sent over the wire.
83 * Note that the fields aren't all naturally aligned.
84 */
85struct fc_esb {
86 __u8 esb_cs_ctl; /* CS_CTL for frame header */
87 __be16 esb_ox_id; /* originator exchange ID */
88 __be16 esb_rx_id; /* responder exchange ID */
89 __be32 esb_orig_fid; /* fabric ID of originator */
90 __be32 esb_resp_fid; /* fabric ID of responder */
91 __be32 esb_e_stat; /* status */
92 __u8 _esb_resvd[4];
93 __u8 esb_service_params[112]; /* TBD */
94 __u8 esb_seq_status[8]; /* sequence statuses, 8 bytes each */
95} __attribute__((packed));
96
97/*
98 * Define expected size for ASSERTs.
99 * See comments on FC_SSB_SIZE.
100 */
101#define FC_ESB_SIZE (1 + 5*4 + 112 + 8) /* expected size */
102
103/*
104 * esb_e_stat - flags from FC-FS-2 T11/1619-D Rev 0.90.
105 */
106#define ESB_ST_RESP (1 << 31) /* responder to exchange */
107#define ESB_ST_SEQ_INIT (1 << 30) /* port holds sequence initiaive */
108#define ESB_ST_COMPLETE (1 << 29) /* exchange is complete */
109#define ESB_ST_ABNORMAL (1 << 28) /* abnormal ending condition */
110#define ESB_ST_REC_QUAL (1 << 26) /* recovery qualifier active */
111
112#define ESB_ST_ERRP_BIT 24 /* LSB for error policy */
113#define ESB_ST_ERRP_MASK (3 << 24) /* mask for error policy */
114#define ESB_ST_ERRP_MULT (0 << 24) /* abort, discard multiple sequences */
115#define ESB_ST_ERRP_SING (1 << 24) /* abort, discard single sequence */
116#define ESB_ST_ERRP_INF (2 << 24) /* process with infinite buffers */
117#define ESB_ST_ERRP_IMM (3 << 24) /* discard mult. with immed. retran. */
118
119#define ESB_ST_OX_ID_INVL (1 << 23) /* originator XID invalid */
120#define ESB_ST_RX_ID_INVL (1 << 22) /* responder XID invalid */
121#define ESB_ST_PRI_INUSE (1 << 21) /* priority / preemption in use */
122
123#endif /* _FC_FC2_H_ */