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8866a5d9 RL |
1 | /* |
2 | * Copyright(c) 2009 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_LIBFC_H_ | |
21 | #define _FC_LIBFC_H_ | |
22 | ||
23 | #define FC_LIBFC_LOGGING 0x01 /* General logging, not categorized */ | |
24 | #define FC_LPORT_LOGGING 0x02 /* lport layer logging */ | |
3a3b42bf | 25 | #define FC_DISC_LOGGING 0x04 /* discovery layer logging */ |
8866a5d9 | 26 | #define FC_RPORT_LOGGING 0x08 /* rport layer logging */ |
3a3b42bf RL |
27 | #define FC_FCP_LOGGING 0x10 /* I/O path logging */ |
28 | #define FC_EM_LOGGING 0x20 /* Exchange Manager logging */ | |
29 | #define FC_EXCH_LOGGING 0x40 /* Exchange/Sequence logging */ | |
30 | #define FC_SCSI_LOGGING 0x80 /* SCSI logging (mostly error handling) */ | |
8866a5d9 RL |
31 | |
32 | extern unsigned int fc_debug_logging; | |
33 | ||
3a3b42bf RL |
34 | #define FC_CHECK_LOGGING(LEVEL, CMD) \ |
35 | do { \ | |
36 | if (unlikely(fc_debug_logging & LEVEL)) \ | |
37 | do { \ | |
38 | CMD; \ | |
39 | } while (0); \ | |
40 | } while (0) | |
8866a5d9 RL |
41 | |
42 | #define FC_LIBFC_DBG(fmt, args...) \ | |
43 | FC_CHECK_LOGGING(FC_LIBFC_LOGGING, \ | |
44 | printk(KERN_INFO "libfc: " fmt, ##args)) | |
45 | ||
46 | #define FC_LPORT_DBG(lport, fmt, args...) \ | |
47 | FC_CHECK_LOGGING(FC_LPORT_LOGGING, \ | |
ce8b5df0 | 48 | printk(KERN_INFO "host%u: lport %6.6x: " fmt, \ |
8866a5d9 | 49 | (lport)->host->host_no, \ |
7b2787ec | 50 | (lport)->port_id, ##args)) |
8866a5d9 | 51 | |
3a3b42bf RL |
52 | #define FC_DISC_DBG(disc, fmt, args...) \ |
53 | FC_CHECK_LOGGING(FC_DISC_LOGGING, \ | |
54 | printk(KERN_INFO "host%u: disc: " fmt, \ | |
0685230c | 55 | fc_disc_lport(disc)->host->host_no, \ |
8866a5d9 RL |
56 | ##args)) |
57 | ||
58 | #define FC_RPORT_ID_DBG(lport, port_id, fmt, args...) \ | |
59 | FC_CHECK_LOGGING(FC_RPORT_LOGGING, \ | |
ce8b5df0 | 60 | printk(KERN_INFO "host%u: rport %6.6x: " fmt, \ |
8866a5d9 RL |
61 | (lport)->host->host_no, \ |
62 | (port_id), ##args)) | |
63 | ||
64 | #define FC_RPORT_DBG(rdata, fmt, args...) \ | |
65 | FC_RPORT_ID_DBG((rdata)->local_port, (rdata)->ids.port_id, fmt, ##args) | |
66 | ||
67 | #define FC_FCP_DBG(pkt, fmt, args...) \ | |
68 | FC_CHECK_LOGGING(FC_FCP_LOGGING, \ | |
9b90dc80 YZ |
69 | { \ |
70 | if ((pkt)->seq_ptr) { \ | |
71 | struct fc_exch *_ep = NULL; \ | |
72 | _ep = fc_seq_exch((pkt)->seq_ptr); \ | |
73 | printk(KERN_INFO "host%u: fcp: %6.6x: " \ | |
74 | "xid %04x-%04x: " fmt, \ | |
8866a5d9 | 75 | (pkt)->lp->host->host_no, \ |
9b90dc80 YZ |
76 | (pkt)->rport->port_id, \ |
77 | (_ep)->oxid, (_ep)->rxid, ##args); \ | |
78 | } else { \ | |
79 | printk(KERN_INFO "host%u: fcp: %6.6x: " fmt, \ | |
80 | (pkt)->lp->host->host_no, \ | |
81 | (pkt)->rport->port_id, ##args); \ | |
82 | } \ | |
83 | }) | |
8866a5d9 RL |
84 | |
85 | #define FC_EXCH_DBG(exch, fmt, args...) \ | |
86 | FC_CHECK_LOGGING(FC_EXCH_LOGGING, \ | |
87 | printk(KERN_INFO "host%u: xid %4x: " fmt, \ | |
88 | (exch)->lp->host->host_no, \ | |
89 | exch->xid, ##args)) | |
90 | ||
91 | #define FC_SCSI_DBG(lport, fmt, args...) \ | |
3a3b42bf | 92 | FC_CHECK_LOGGING(FC_SCSI_LOGGING, \ |
8866a5d9 RL |
93 | printk(KERN_INFO "host%u: scsi: " fmt, \ |
94 | (lport)->host->host_no, ##args)) | |
95 | ||
96ad8464 JE |
96 | /* |
97 | * FC-4 Providers. | |
98 | */ | |
99 | extern struct fc4_prov *fc_active_prov[]; /* providers without recv */ | |
100 | extern struct fc4_prov *fc_passive_prov[]; /* providers with recv */ | |
101 | extern struct mutex fc_prov_mutex; /* lock over table changes */ | |
102 | ||
103 | extern struct fc4_prov fc_rport_t0_prov; /* type 0 provider */ | |
104 | extern struct fc4_prov fc_lport_els_prov; /* ELS provider */ | |
105 | extern struct fc4_prov fc_rport_fcp_init; /* FCP initiator provider */ | |
106 | ||
8866a5d9 RL |
107 | /* |
108 | * Set up direct-data placement for this I/O request | |
109 | */ | |
110 | void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid); | |
6a716a85 | 111 | void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp); |
8866a5d9 RL |
112 | |
113 | /* | |
114 | * Module setup functions | |
115 | */ | |
116 | int fc_setup_exch_mgr(void); | |
117 | void fc_destroy_exch_mgr(void); | |
118 | int fc_setup_rport(void); | |
119 | void fc_destroy_rport(void); | |
93e6d5ab RL |
120 | int fc_setup_fcp(void); |
121 | void fc_destroy_fcp(void); | |
8866a5d9 RL |
122 | |
123 | /* | |
124 | * Internal libfc functions | |
125 | */ | |
126 | const char *fc_els_resp_type(struct fc_frame *); | |
70d53b04 JE |
127 | extern void fc_fc4_add_lport(struct fc_lport *); |
128 | extern void fc_fc4_del_lport(struct fc_lport *); | |
acc1a921 | 129 | extern void fc_fc4_conf_lport_params(struct fc_lport *, enum fc_fh_type); |
8866a5d9 | 130 | |
58682874 RL |
131 | /* |
132 | * Copies a buffer into an sg list | |
133 | */ | |
134 | u32 fc_copy_buffer_to_sglist(void *buf, size_t len, | |
135 | struct scatterlist *sg, | |
136 | u32 *nents, size_t *offset, | |
77dfce07 | 137 | u32 *crc); |
58682874 | 138 | |
8866a5d9 | 139 | #endif /* _FC_LIBFC_H_ */ |