[SCSI] libfc: Add libfc/fc_libfc.[ch] for libfc internal routines

include/scsi/libfc.h is currently loaded with common code
shared between libfc's sub-modules as well as shared between
libfc and fcoe. Previous patches attempted to move out
non-common code. This patch creates two files for common
libfc routines that will not be shared with fcoe, fnic or
any other LLDs.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 102 insertions, 0 deletions

diff --git a/drivers/scsi/libfc/fc_libfc.h b/drivers/scsi/libfc/fc_libfc.h
new file mode 100644
index 000000000000..388fae4364af
--- /dev/null
+++ b/drivers/scsi/libfc/fc_libfc.h
@@ -0,0 +1,102 @@
+/*
+ * 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,                              \
+                         printk(KERN_INFO "libfc: " fmt, ##args))
+
+#define FC_LPORT_DBG(lport, fmt, args...)                               \
+        FC_CHECK_LOGGING(FC_LPORT_LOGGING,                              \
+                         printk(KERN_INFO "host%u: lport %6x: " fmt,    \
+                                (lport)->host->host_no,                 \
+                                fc_host_port_id((lport)->host), ##args))
+
+#define FC_DISC_DBG(disc, fmt, args...)                                 \
+        FC_CHECK_LOGGING(FC_DISC_LOGGING,                               \
+                         printk(KERN_INFO "host%u: disc: " fmt,         \
+                                (disc)->lport->host->host_no,           \
+                                ##args))
+
+#define FC_RPORT_ID_DBG(lport, port_id, fmt, args...)                   \
+        FC_CHECK_LOGGING(FC_RPORT_LOGGING,                              \
+                         printk(KERN_INFO "host%u: rport %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,                                \
+                         printk(KERN_INFO "host%u: fcp: %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,                               \
+                         printk(KERN_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,                               \
+                         printk(KERN_INFO "host%u: scsi: " fmt,         \
+                                (lport)->host->host_no, ##args))
+
+/*
+ * Set up direct-data placement for this I/O request
+ */
+void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid);
+
+/*
+ * 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);
+
+/*
+ * Internal libfc functions
+ */
+const char *fc_els_resp_type(struct fc_frame *);
+
+#endif /* _FC_LIBFC_H_ */