140 lines
4.3 KiB
C
140 lines
4.3 KiB
C
/*
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* Copyright(c) 2009 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Maintained at www.Open-FCoE.org
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*/
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#ifndef _FC_LIBFC_H_
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#define _FC_LIBFC_H_
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#define FC_LIBFC_LOGGING 0x01 /* General logging, not categorized */
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#define FC_LPORT_LOGGING 0x02 /* lport layer logging */
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#define FC_DISC_LOGGING 0x04 /* discovery layer logging */
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#define FC_RPORT_LOGGING 0x08 /* rport layer logging */
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#define FC_FCP_LOGGING 0x10 /* I/O path logging */
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#define FC_EM_LOGGING 0x20 /* Exchange Manager logging */
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#define FC_EXCH_LOGGING 0x40 /* Exchange/Sequence logging */
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#define FC_SCSI_LOGGING 0x80 /* SCSI logging (mostly error handling) */
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extern unsigned int fc_debug_logging;
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#define FC_CHECK_LOGGING(LEVEL, CMD) \
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do { \
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if (unlikely(fc_debug_logging & LEVEL)) \
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do { \
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CMD; \
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} while (0); \
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} while (0)
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#define FC_LIBFC_DBG(fmt, args...) \
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FC_CHECK_LOGGING(FC_LIBFC_LOGGING, \
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pr_info("libfc: " fmt, ##args))
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#define FC_LPORT_DBG(lport, fmt, args...) \
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FC_CHECK_LOGGING(FC_LPORT_LOGGING, \
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pr_info("host%u: lport %6.6x: " fmt, \
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(lport)->host->host_no, \
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(lport)->port_id, ##args))
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#define FC_DISC_DBG(disc, fmt, args...) \
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FC_CHECK_LOGGING(FC_DISC_LOGGING, \
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pr_info("host%u: disc: " fmt, \
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fc_disc_lport(disc)->host->host_no, \
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##args))
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#define FC_RPORT_ID_DBG(lport, port_id, fmt, args...) \
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FC_CHECK_LOGGING(FC_RPORT_LOGGING, \
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pr_info("host%u: rport %6.6x: " fmt, \
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(lport)->host->host_no, \
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(port_id), ##args))
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#define FC_RPORT_DBG(rdata, fmt, args...) \
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FC_RPORT_ID_DBG((rdata)->local_port, (rdata)->ids.port_id, fmt, ##args)
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#define FC_FCP_DBG(pkt, fmt, args...) \
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FC_CHECK_LOGGING(FC_FCP_LOGGING, \
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{ \
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if ((pkt)->seq_ptr) { \
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struct fc_exch *_ep = NULL; \
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_ep = fc_seq_exch((pkt)->seq_ptr); \
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pr_info("host%u: fcp: %6.6x: " \
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"xid %04x-%04x: " fmt, \
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(pkt)->lp->host->host_no, \
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(pkt)->rport->port_id, \
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(_ep)->oxid, (_ep)->rxid, ##args); \
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} else { \
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pr_info("host%u: fcp: %6.6x: " fmt, \
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(pkt)->lp->host->host_no, \
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(pkt)->rport->port_id, ##args); \
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} \
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})
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#define FC_EXCH_DBG(exch, fmt, args...) \
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FC_CHECK_LOGGING(FC_EXCH_LOGGING, \
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pr_info("host%u: xid %4x: " fmt, \
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(exch)->lp->host->host_no, \
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exch->xid, ##args))
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#define FC_SCSI_DBG(lport, fmt, args...) \
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FC_CHECK_LOGGING(FC_SCSI_LOGGING, \
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pr_info("host%u: scsi: " fmt, \
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(lport)->host->host_no, ##args))
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/*
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* FC-4 Providers.
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*/
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extern struct fc4_prov *fc_active_prov[]; /* providers without recv */
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extern struct fc4_prov *fc_passive_prov[]; /* providers with recv */
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extern struct mutex fc_prov_mutex; /* lock over table changes */
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extern struct fc4_prov fc_rport_t0_prov; /* type 0 provider */
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extern struct fc4_prov fc_lport_els_prov; /* ELS provider */
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extern struct fc4_prov fc_rport_fcp_init; /* FCP initiator provider */
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/*
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* Set up direct-data placement for this I/O request
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*/
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void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid);
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void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp);
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/*
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* Module setup functions
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*/
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int fc_setup_exch_mgr(void);
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void fc_destroy_exch_mgr(void);
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int fc_setup_rport(void);
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void fc_destroy_rport(void);
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int fc_setup_fcp(void);
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void fc_destroy_fcp(void);
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/*
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* Internal libfc functions
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*/
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const char *fc_els_resp_type(struct fc_frame *);
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extern void fc_fc4_add_lport(struct fc_lport *);
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extern void fc_fc4_del_lport(struct fc_lport *);
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extern void fc_fc4_conf_lport_params(struct fc_lport *, enum fc_fh_type);
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/*
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* Copies a buffer into an sg list
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*/
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u32 fc_copy_buffer_to_sglist(void *buf, size_t len,
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struct scatterlist *sg,
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u32 *nents, size_t *offset,
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u32 *crc);
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#endif /* _FC_LIBFC_H_ */
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