/* SPDX-License-Identifier: GPL-2.0-only *//* * Copyright(c) 2009 Intel Corporation. All rights reserved. * * Maintained at www.Open-FCoE.org */ #ifndef _FC_LIBFC_H_#define _FC_LIBFC_H_ #define FC_LIBFC_LOGGING 0x01 /* General logging, not categorized */#define FC_LPORT_LOGGING 0x02 /* lport layer logging */#define FC_DISC_LOGGING	 0x04 /* discovery layer logging */#define FC_RPORT_LOGGING 0x08 /* rport layer logging */#define FC_FCP_LOGGING	 0x10 /* I/O path logging */#define FC_EM_LOGGING	 0x20 /* Exchange Manager logging */#define FC_EXCH_LOGGING	 0x40 /* Exchange/Sequence logging */#define FC_SCSI_LOGGING	 0x80 /* SCSI logging (mostly error handling) */ extern unsigned int fc_debug_logging; #define FC_CHECK_LOGGING(LEVEL, CMD)			\	do {						\		if (unlikely(fc_debug_logging & LEVEL))	\			do {				\				CMD;			\			} while (0);			\	} while (0) #define FC_LIBFC_DBG(fmt, args...)					\	FC_CHECK_LOGGING(FC_LIBFC_LOGGING,				\			 pr_info("libfc: " fmt, ##args)) #define FC_LPORT_DBG(lport, fmt, args...)				\	FC_CHECK_LOGGING(FC_LPORT_LOGGING,				\			 pr_info("host%u: lport %6.6x: " fmt,		\				 (lport)->host->host_no,		\				 (lport)->port_id, ##args)) #define FC_DISC_DBG(disc, fmt, args...)					\	FC_CHECK_LOGGING(FC_DISC_LOGGING,				\			 pr_info("host%u: disc: " fmt,			\				 fc_disc_lport(disc)->host->host_no,	\				 ##args)) #define FC_RPORT_ID_DBG(lport, port_id, fmt, args...)			\	FC_CHECK_LOGGING(FC_RPORT_LOGGING,				\			 pr_info("host%u: rport %6.6x: " fmt,		\				 (lport)->host->host_no,		\				 (port_id), ##args)) #define FC_RPORT_DBG(rdata, fmt, args...)				\	FC_RPORT_ID_DBG((rdata)->local_port, (rdata)->ids.port_id, fmt, ##args) #define FC_FCP_DBG(pkt, fmt, args...)					\	FC_CHECK_LOGGING(FC_FCP_LOGGING,				\	{								\		if ((pkt)->seq_ptr) {					\			struct fc_exch *_ep = NULL;			\			_ep = fc_seq_exch((pkt)->seq_ptr);		\			pr_info("host%u: fcp: %6.6x: "			\				"xid %04x-%04x: " fmt,			\				(pkt)->lp->host->host_no,		\				(pkt)->rport->port_id,			\				(_ep)->oxid, (_ep)->rxid, ##args);	\		} else {						\			pr_info("host%u: fcp: %6.6x: " fmt,		\				(pkt)->lp->host->host_no,		\				(pkt)->rport->port_id, ##args);		\		}							\	}) #define FC_EXCH_DBG(exch, fmt, args...)					\	FC_CHECK_LOGGING(FC_EXCH_LOGGING,				\			 pr_info("host%u: xid %4x: " fmt,		\				 (exch)->lp->host->host_no,		\				 exch->xid, ##args)) #define FC_SCSI_DBG(lport, fmt, args...)				\	FC_CHECK_LOGGING(FC_SCSI_LOGGING,				\			 pr_info("host%u: scsi: " fmt,			\				 (lport)->host->host_no, ##args)) /* * FC-4 Providers. */extern struct fc4_prov *fc_active_prov[];	/* providers without recv */extern struct fc4_prov *fc_passive_prov[];	/* providers with recv */extern struct mutex fc_prov_mutex;		/* lock over table changes */ extern struct fc4_prov fc_rport_t0_prov;	/* type 0 provider */extern struct fc4_prov fc_lport_els_prov;	/* ELS provider */extern struct fc4_prov fc_rport_fcp_init;	/* FCP initiator provider */ /* * Set up direct-data placement for this I/O request */void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid);void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp); /* * Module setup functions */int fc_setup_exch_mgr(void);void fc_destroy_exch_mgr(void);int fc_setup_rport(void);void fc_destroy_rport(void);int fc_setup_fcp(void);void fc_destroy_fcp(void); /* * Internal libfc functions */const char *fc_els_resp_type(struct fc_frame *);extern void fc_fc4_add_lport(struct fc_lport *);extern void fc_fc4_del_lport(struct fc_lport *);extern void fc_fc4_conf_lport_params(struct fc_lport *, enum fc_fh_type); /* * Copies a buffer into an sg list */u32 fc_copy_buffer_to_sglist(void *buf, size_t len,			     struct scatterlist *sg,			     u32 *nents, size_t *offset,			     u32 *crc); #endif /* _FC_LIBFC_H_ */