--- /dev/null
+/*
+ * Copyright(c) 2009 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * 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_ */
Code Review / kvmfornfv.git / blobdiff