cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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fc_libfc.h (3831B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright(c) 2009 Intel Corporation. All rights reserved.
      4 *
      5 * Maintained at www.Open-FCoE.org
      6 */
      7
      8#ifndef _FC_LIBFC_H_
      9#define _FC_LIBFC_H_
     10
     11#define FC_LIBFC_LOGGING 0x01 /* General logging, not categorized */
     12#define FC_LPORT_LOGGING 0x02 /* lport layer logging */
     13#define FC_DISC_LOGGING	 0x04 /* discovery layer logging */
     14#define FC_RPORT_LOGGING 0x08 /* rport layer logging */
     15#define FC_FCP_LOGGING	 0x10 /* I/O path logging */
     16#define FC_EM_LOGGING	 0x20 /* Exchange Manager logging */
     17#define FC_EXCH_LOGGING	 0x40 /* Exchange/Sequence logging */
     18#define FC_SCSI_LOGGING	 0x80 /* SCSI logging (mostly error handling) */
     19
     20extern unsigned int fc_debug_logging;
     21
     22#define FC_CHECK_LOGGING(LEVEL, CMD)			\
     23	do {						\
     24		if (unlikely(fc_debug_logging & LEVEL))	\
     25			do {				\
     26				CMD;			\
     27			} while (0);			\
     28	} while (0)
     29
     30#define FC_LIBFC_DBG(fmt, args...)					\
     31	FC_CHECK_LOGGING(FC_LIBFC_LOGGING,				\
     32			 pr_info("libfc: " fmt, ##args))
     33
     34#define FC_LPORT_DBG(lport, fmt, args...)				\
     35	FC_CHECK_LOGGING(FC_LPORT_LOGGING,				\
     36			 pr_info("host%u: lport %6.6x: " fmt,		\
     37				 (lport)->host->host_no,		\
     38				 (lport)->port_id, ##args))
     39
     40#define FC_DISC_DBG(disc, fmt, args...)					\
     41	FC_CHECK_LOGGING(FC_DISC_LOGGING,				\
     42			 pr_info("host%u: disc: " fmt,			\
     43				 fc_disc_lport(disc)->host->host_no,	\
     44				 ##args))
     45
     46#define FC_RPORT_ID_DBG(lport, port_id, fmt, args...)			\
     47	FC_CHECK_LOGGING(FC_RPORT_LOGGING,				\
     48			 pr_info("host%u: rport %6.6x: " fmt,		\
     49				 (lport)->host->host_no,		\
     50				 (port_id), ##args))
     51
     52#define FC_RPORT_DBG(rdata, fmt, args...)				\
     53	FC_RPORT_ID_DBG((rdata)->local_port, (rdata)->ids.port_id, fmt, ##args)
     54
     55#define FC_FCP_DBG(pkt, fmt, args...)					\
     56	FC_CHECK_LOGGING(FC_FCP_LOGGING,				\
     57	{								\
     58		if ((pkt)->seq_ptr) {					\
     59			struct fc_exch *_ep = NULL;			\
     60			_ep = fc_seq_exch((pkt)->seq_ptr);		\
     61			pr_info("host%u: fcp: %6.6x: "			\
     62				"xid %04x-%04x: " fmt,			\
     63				(pkt)->lp->host->host_no,		\
     64				(pkt)->rport->port_id,			\
     65				(_ep)->oxid, (_ep)->rxid, ##args);	\
     66		} else {						\
     67			pr_info("host%u: fcp: %6.6x: " fmt,		\
     68				(pkt)->lp->host->host_no,		\
     69				(pkt)->rport->port_id, ##args);		\
     70		}							\
     71	})
     72
     73#define FC_EXCH_DBG(exch, fmt, args...)					\
     74	FC_CHECK_LOGGING(FC_EXCH_LOGGING,				\
     75			 pr_info("host%u: xid %4x: " fmt,		\
     76				 (exch)->lp->host->host_no,		\
     77				 exch->xid, ##args))
     78
     79#define FC_SCSI_DBG(lport, fmt, args...)				\
     80	FC_CHECK_LOGGING(FC_SCSI_LOGGING,				\
     81			 pr_info("host%u: scsi: " fmt,			\
     82				 (lport)->host->host_no, ##args))
     83
     84/*
     85 * FC-4 Providers.
     86 */
     87extern struct fc4_prov *fc_active_prov[];	/* providers without recv */
     88extern struct fc4_prov *fc_passive_prov[];	/* providers with recv */
     89extern struct mutex fc_prov_mutex;		/* lock over table changes */
     90
     91extern struct fc4_prov fc_rport_t0_prov;	/* type 0 provider */
     92extern struct fc4_prov fc_lport_els_prov;	/* ELS provider */
     93extern struct fc4_prov fc_rport_fcp_init;	/* FCP initiator provider */
     94
     95/*
     96 * Set up direct-data placement for this I/O request
     97 */
     98void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid);
     99void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp);
    100
    101/*
    102 * Module setup functions
    103 */
    104int fc_setup_exch_mgr(void);
    105void fc_destroy_exch_mgr(void);
    106int fc_setup_rport(void);
    107void fc_destroy_rport(void);
    108int fc_setup_fcp(void);
    109void fc_destroy_fcp(void);
    110
    111/*
    112 * Internal libfc functions
    113 */
    114const char *fc_els_resp_type(struct fc_frame *);
    115extern void fc_fc4_add_lport(struct fc_lport *);
    116extern void fc_fc4_del_lport(struct fc_lport *);
    117extern void fc_fc4_conf_lport_params(struct fc_lport *, enum fc_fh_type);
    118
    119/*
    120 * Copies a buffer into an sg list
    121 */
    122u32 fc_copy_buffer_to_sglist(void *buf, size_t len,
    123			     struct scatterlist *sg,
    124			     u32 *nents, size_t *offset,
    125			     u32 *crc);
    126
    127#endif /* _FC_LIBFC_H_ */