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 _FCOE_H_
9#define _FCOE_H_
10
11#include <linux/skbuff.h>
12#include <linux/kthread.h>
13
14#define FCOE_MAX_QUEUE_DEPTH	256
15#define FCOE_MIN_QUEUE_DEPTH	32
16
17#define FCOE_WORD_TO_BYTE	4
18
19#define FCOE_VERSION	"0.1"
20#define FCOE_NAME	"fcoe"
21#define FCOE_VENDOR	"Open-FCoE.org"
22
23#define FCOE_MAX_LUN		0xFFFF
24#define FCOE_MAX_FCP_TARGET	256
25
26#define FCOE_MAX_OUTSTANDING_COMMANDS	1024
27
28#define FCOE_MIN_XID		0x0000	/* the min xid supported by fcoe_sw */
29#define FCOE_MAX_XID		0x0FFF	/* the max xid supported by fcoe_sw */
30
31extern unsigned int fcoe_debug_logging;
32
33#define FCOE_LOGGING	    0x01 /* General logging, not categorized */
34#define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */
35
36#define FCOE_CHECK_LOGGING(LEVEL, CMD)					\
37do {                                                            	\
38	if (unlikely(fcoe_debug_logging & LEVEL))			\
39		do {							\
40			CMD;						\
41		} while (0);						\
42} while (0)
43
44#define FCOE_DBG(fmt, args...)						\
45	FCOE_CHECK_LOGGING(FCOE_LOGGING,				\
46			   pr_info("fcoe: " fmt, ##args);)
47
48#define FCOE_NETDEV_DBG(netdev, fmt, args...)			\
49	FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING,			\
50			   pr_info("fcoe: %s: " fmt,		\
51				   netdev->name, ##args);)
52
53/**
54 * struct fcoe_interface - A FCoE interface
55 * @list:	      Handle for a list of FCoE interfaces
56 * @netdev:	      The associated net device
57 * @fcoe_packet_type: FCoE packet type
58 * @fip_packet_type:  FIP packet type
59 * @oem:	      The offload exchange manager for all local port
60 *		      instances associated with this port
61 * @removed:	      Indicates fcoe interface removed from net device
62 * @priority:	      Priority for the FCoE packet (DCB)
63 * This structure is 1:1 with a net device.
64 */
65struct fcoe_interface {
66	struct list_head   list;
67	struct net_device  *netdev;
68	struct net_device  *realdev;
69	struct packet_type fcoe_packet_type;
70	struct packet_type fip_packet_type;
71	struct packet_type fip_vlan_packet_type;
72	struct fc_exch_mgr *oem;
73	u8	removed;
74	u8	priority;
75};
76
77#define fcoe_to_ctlr(x)						\
78	(struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1)
79
80#define fcoe_from_ctlr(x)			\
81	((struct fcoe_interface *)((x) + 1))
82
83/**
84 * fcoe_netdev() - Return the net device associated with a local port
85 * @lport: The local port to get the net device from
86 */
87static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
88{
89	return ((struct fcoe_interface *)
90			((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
91}
92
93#endif /* _FCOE_H_ */
94