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[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>
This commit is contained in:
Robert Love 2009-11-03 11:45:58 -08:00 committed by James Bottomley
parent 255f6386b8
commit 8866a5d907
9 changed files with 147 additions and 86 deletions
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1
drivers/scsi/libfc/Makefile
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@ -3,6 +3,7 @@
obj-$(CONFIG_LIBFC) += libfc.o
libfc-objs := \
fc_libfc.o \
fc_disc.o \
fc_exch.o \
fc_elsct.o \

2
drivers/scsi/libfc/fc_disc.c
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@ -40,6 +40,8 @@
#include <scsi/libfc.h>
#include "fc_libfc.h"
#define FC_DISC_RETRY_LIMIT 3 /* max retries */
#define FC_DISC_RETRY_DELAY 500UL /* (msecs) delay */

2
drivers/scsi/libfc/fc_exch.c
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@ -32,6 +32,8 @@
#include <scsi/libfc.h>
#include <scsi/fc_encode.h>
#include "fc_libfc.h"
u16 fc_cpu_mask; /* cpu mask for possible cpus */
EXPORT_SYMBOL(fc_cpu_mask);
static u16 fc_cpu_order; /* 2's power to represent total possible cpus */

8
drivers/scsi/libfc/fc_fcp.c
View File

@ -39,13 +39,7 @@
#include <scsi/libfc.h>
#include <scsi/fc_encode.h>
MODULE_AUTHOR("Open-FCoE.org");
MODULE_DESCRIPTION("libfc");
MODULE_LICENSE("GPL v2");
unsigned int fc_debug_logging;
module_param_named(debug_logging, fc_debug_logging, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
#include "fc_libfc.h"
static struct kmem_cache *scsi_pkt_cachep;

35
drivers/scsi/libfc/fc_libfc.c Normal file
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@ -0,0 +1,35 @@
/*
* 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
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/scatterlist.h>
#include <linux/crc32.h>
#include <scsi/libfc.h>
#include "fc_libfc.h"
MODULE_AUTHOR("Open-FCoE.org");
MODULE_DESCRIPTION("libfc");
MODULE_LICENSE("GPL v2");
unsigned int fc_debug_logging;
module_param_named(debug_logging, fc_debug_logging, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");

102
drivers/scsi/libfc/fc_libfc.h Normal file
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@ -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_ */

2
drivers/scsi/libfc/fc_lport.c
View File

@ -95,6 +95,8 @@
#include <scsi/libfc.h>
#include <scsi/fc_encode.h>
#include "fc_libfc.h"
/* Fabric IDs to use for point-to-point mode, chosen on whims. */
#define FC_LOCAL_PTP_FID_LO 0x010101
#define FC_LOCAL_PTP_FID_HI 0x010102

2
drivers/scsi/libfc/fc_rport.c
View File

@ -55,6 +55,8 @@
#include <scsi/libfc.h>
#include <scsi/fc_encode.h>
#include "fc_libfc.h"
struct workqueue_struct *rport_event_queue;
static void fc_rport_enter_plogi(struct fc_rport_priv *);

79
include/scsi/libfc.h
View File

@ -34,67 +34,6 @@
#include <scsi/fc_frame.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))
/*
* libfc error codes
*/
@ -923,11 +862,6 @@ int fc_change_queue_type(struct scsi_device *sdev, int tag_type);
*/
void fc_fcp_destroy(struct fc_lport *);
/*
* Set up direct-data placement for this I/O request
*/
void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid);
/*
* ELS/CT interface
*****************************/
@ -1020,17 +954,4 @@ void fc_get_host_port_state(struct Scsi_Host *shost);
void fc_set_rport_loss_tmo(struct fc_rport *rport, u32 timeout);
struct fc_host_statistics *fc_get_host_stats(struct Scsi_Host *);
/*
* 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 /* _LIBFC_H_ */