[mirror_ubuntu-artful-kernel.git] / drivers / scsi / fcoe / fcoe.h

/*
 * 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 _FCOE_H_
#define _FCOE_H_

#include <linux/skbuff.h>
#include <linux/kthread.h>

#define FCOE_MAX_QUEUE_DEPTH	256
#define FCOE_MIN_QUEUE_DEPTH	32

#define FCOE_WORD_TO_BYTE	4

#define FCOE_VERSION	"0.1"
#define FCOE_NAME	"fcoe"
#define FCOE_VENDOR	"Open-FCoE.org"

#define FCOE_MAX_LUN		0xFFFF
#define FCOE_MAX_FCP_TARGET	256

#define FCOE_MAX_OUTSTANDING_COMMANDS	1024

#define FCOE_MIN_XID		0x0000	/* the min xid supported by fcoe_sw */
#define FCOE_MAX_XID		0x0FFF	/* the max xid supported by fcoe_sw */

extern unsigned int fcoe_debug_logging;

#define FCOE_LOGGING	    0x01 /* General logging, not categorized */
#define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */

#define FCOE_CHECK_LOGGING(LEVEL, CMD)					\
do {                                                            	\
	if (unlikely(fcoe_debug_logging & LEVEL))			\
		do {							\
			CMD;						\
		} while (0);						\
} while (0)

#define FCOE_DBG(fmt, args...)						\
	FCOE_CHECK_LOGGING(FCOE_LOGGING,				\
			   pr_info("fcoe: " fmt, ##args);)

#define FCOE_NETDEV_DBG(netdev, fmt, args...)			\
	FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING,			\
			   pr_info("fcoe: %s: " fmt,		\
				   netdev->name, ##args);)

/**
 * struct fcoe_interface - A FCoE interface
 * @list:	      Handle for a list of FCoE interfaces
 * @netdev:	      The associated net device
 * @fcoe_packet_type: FCoE packet type
 * @fip_packet_type:  FIP packet type
 * @oem:	      The offload exchange manager for all local port
 *		      instances associated with this port
 * @removed:	      Indicates fcoe interface removed from net device
 * @priority:	      Priority for the FCoE packet (DCB)
 * This structure is 1:1 with a net device.
 */
struct fcoe_interface {
	struct list_head   list;
	struct net_device  *netdev;
	struct net_device  *realdev;
	struct packet_type fcoe_packet_type;
	struct packet_type fip_packet_type;
	struct packet_type fip_vlan_packet_type;
	struct fc_exch_mgr *oem;
	u8	removed;
	u8	priority;
};

#define fcoe_to_ctlr(x)						\
	(struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1)

#define fcoe_from_ctlr(x)			\
	((struct fcoe_interface *)((x) + 1))

/**
 * fcoe_netdev() - Return the net device associated with a local port
 * @lport: The local port to get the net device from
 */
static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
{
	return ((struct fcoe_interface *)
			((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
}

#endif /* _FCOE_H_ */
Commit	Line	Data
fdd78027 VD	1	/*
	2	* Copyright(c) 2009 Intel Corporation. All rights reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms and conditions of the GNU General Public License,
	6	* version 2, as published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope it will be useful, but WITHOUT
	9	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	10	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	11	* more details.
	12	*
	13	* You should have received a copy of the GNU General Public License along with
	14	* this program; if not, write to the Free Software Foundation, Inc.,
	15	* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
	16	*
	17	* Maintained at www.Open-FCoE.org
	18	*/
	19
	20	#ifndef _FCOE_H_
	21	#define _FCOE_H_
	22
	23	#include <linux/skbuff.h>
	24	#include <linux/kthread.h>
	25
	26	#define FCOE_MAX_QUEUE_DEPTH 256
8597ae8b	27	#define FCOE_MIN_QUEUE_DEPTH 32
fdd78027	28
fdd78027 VD	29	#define FCOE_WORD_TO_BYTE 4
	30
	31	#define FCOE_VERSION "0.1"
	32	#define FCOE_NAME "fcoe"
	33	#define FCOE_VENDOR "Open-FCoE.org"
	34
2171c225	35	#define FCOE_MAX_LUN 0xFFFF
fdd78027 VD	36	#define FCOE_MAX_FCP_TARGET 256
	37
	38	#define FCOE_MAX_OUTSTANDING_COMMANDS 1024
	39
d7179680	40	#define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */
e4bc50be	41	#define FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */
fdd78027	42
7c9c6841	43	extern unsigned int fcoe_debug_logging;
d5488eb9	44
1875f27e	45	#define FCOE_LOGGING 0x01 /* General logging, not categorized */
d5488eb9 RL	46	#define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */
	47
	48	#define FCOE_CHECK_LOGGING(LEVEL, CMD) \
	49	do { \
	50	if (unlikely(fcoe_debug_logging & LEVEL)) \
	51	do { \
	52	CMD; \
	53	} while (0); \
a69b06bc	54	} while (0)
d5488eb9 RL	55
	56	#define FCOE_DBG(fmt, args...) \
	57	FCOE_CHECK_LOGGING(FCOE_LOGGING, \
8e6c5363	58	pr_info("fcoe: " fmt, ##args);)
d5488eb9 RL	59
	60	#define FCOE_NETDEV_DBG(netdev, fmt, args...) \
	61	FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING, \
8e6c5363 RL	62	pr_info("fcoe: %s: " fmt, \
8e6c5363 RL	63	netdev->name, ##args);)
d5488eb9	64
1875f27e RL	65	/**
	66	* struct fcoe_interface - A FCoE interface
	67	* @list: Handle for a list of FCoE interfaces
	68	* @netdev: The associated net device
	69	* @fcoe_packet_type: FCoE packet type
	70	* @fip_packet_type: FIP packet type
1875f27e RL	71	* @oem: The offload exchange manager for all local port
1875f27e RL	72	* instances associated with this port
433eba04	73	* @removed: Indicates fcoe interface removed from net device
31c37a6f	74	* @priority: Priority for the FCoE packet (DCB)
433eba04	75	* This structure is 1:1 with a net device.
fdd78027	76	*/
014f5c3f	77	struct fcoe_interface {
1875f27e RL	78	struct list_head list;
1875f27e RL	79	struct net_device *netdev;
d1483bb9	80	struct net_device *realdev;
1875f27e RL	81	struct packet_type fcoe_packet_type;
1875f27e RL	82	struct packet_type fip_packet_type;
d242e668	83	struct packet_type fip_vlan_packet_type;
1875f27e	84	struct fc_exch_mgr *oem;
433eba04	85	u8 removed;
31c37a6f	86	u8 priority;
014f5c3f CL	87	};
014f5c3f CL	88
619fe4be RL	89	#define fcoe_to_ctlr(x) \
	90	(struct fcoe_ctlr )(((struct fcoe_ctlr )(x)) - 1)
	91
	92	#define fcoe_from_ctlr(x) \
	93	((struct fcoe_interface *)((x) + 1))
97c8389d	94
1875f27e RL	95	/**
	96	* fcoe_netdev() - Return the net device associated with a local port
	97	* @lport: The local port to get the net device from
	98	*/
	99	static inline struct net_device fcoe_netdev(const struct fc_lport lport)
fdd78027	100	{
8597ae8b BPG	101	return ((struct fcoe_interface *)
8597ae8b BPG	102	((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
fdd78027 VD	103	}
	104
	105	#endif /* _FCOE_H_ */