1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright(c) 2009 Intel Corporation. All rights reserved.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Maintained at www.Open-FCoE.org
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #ifndef _FCOE_H_
9*4882a593Smuzhiyun #define _FCOE_H_
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/skbuff.h>
12*4882a593Smuzhiyun #include <linux/kthread.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #define FCOE_MAX_QUEUE_DEPTH 256
15*4882a593Smuzhiyun #define FCOE_MIN_QUEUE_DEPTH 32
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #define FCOE_WORD_TO_BYTE 4
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #define FCOE_VERSION "0.1"
20*4882a593Smuzhiyun #define FCOE_NAME "fcoe"
21*4882a593Smuzhiyun #define FCOE_VENDOR "Open-FCoE.org"
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun #define FCOE_MAX_LUN 0xFFFF
24*4882a593Smuzhiyun #define FCOE_MAX_FCP_TARGET 256
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun #define FCOE_MAX_OUTSTANDING_COMMANDS 1024
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun #define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */
29*4882a593Smuzhiyun #define FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun extern unsigned int fcoe_debug_logging;
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun #define FCOE_LOGGING 0x01 /* General logging, not categorized */
34*4882a593Smuzhiyun #define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun #define FCOE_CHECK_LOGGING(LEVEL, CMD) \
37*4882a593Smuzhiyun do { \
38*4882a593Smuzhiyun if (unlikely(fcoe_debug_logging & LEVEL)) \
39*4882a593Smuzhiyun do { \
40*4882a593Smuzhiyun CMD; \
41*4882a593Smuzhiyun } while (0); \
42*4882a593Smuzhiyun } while (0)
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun #define FCOE_DBG(fmt, args...) \
45*4882a593Smuzhiyun FCOE_CHECK_LOGGING(FCOE_LOGGING, \
46*4882a593Smuzhiyun pr_info("fcoe: " fmt, ##args);)
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun #define FCOE_NETDEV_DBG(netdev, fmt, args...) \
49*4882a593Smuzhiyun FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING, \
50*4882a593Smuzhiyun pr_info("fcoe: %s: " fmt, \
51*4882a593Smuzhiyun netdev->name, ##args);)
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun /**
54*4882a593Smuzhiyun * struct fcoe_interface - A FCoE interface
55*4882a593Smuzhiyun * @list: Handle for a list of FCoE interfaces
56*4882a593Smuzhiyun * @netdev: The associated net device
57*4882a593Smuzhiyun * @fcoe_packet_type: FCoE packet type
58*4882a593Smuzhiyun * @fip_packet_type: FIP packet type
59*4882a593Smuzhiyun * @oem: The offload exchange manager for all local port
60*4882a593Smuzhiyun * instances associated with this port
61*4882a593Smuzhiyun * @removed: Indicates fcoe interface removed from net device
62*4882a593Smuzhiyun * @priority: Priority for the FCoE packet (DCB)
63*4882a593Smuzhiyun * This structure is 1:1 with a net device.
64*4882a593Smuzhiyun */
65*4882a593Smuzhiyun struct fcoe_interface {
66*4882a593Smuzhiyun struct list_head list;
67*4882a593Smuzhiyun struct net_device *netdev;
68*4882a593Smuzhiyun struct net_device *realdev;
69*4882a593Smuzhiyun struct packet_type fcoe_packet_type;
70*4882a593Smuzhiyun struct packet_type fip_packet_type;
71*4882a593Smuzhiyun struct packet_type fip_vlan_packet_type;
72*4882a593Smuzhiyun struct fc_exch_mgr *oem;
73*4882a593Smuzhiyun u8 removed;
74*4882a593Smuzhiyun u8 priority;
75*4882a593Smuzhiyun };
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun #define fcoe_to_ctlr(x) \
78*4882a593Smuzhiyun (struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1)
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun #define fcoe_from_ctlr(x) \
81*4882a593Smuzhiyun ((struct fcoe_interface *)((x) + 1))
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun /**
84*4882a593Smuzhiyun * fcoe_netdev() - Return the net device associated with a local port
85*4882a593Smuzhiyun * @lport: The local port to get the net device from
86*4882a593Smuzhiyun */
fcoe_netdev(const struct fc_lport * lport)87*4882a593Smuzhiyun static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
88*4882a593Smuzhiyun {
89*4882a593Smuzhiyun return ((struct fcoe_interface *)
90*4882a593Smuzhiyun ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
91*4882a593Smuzhiyun }
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun #endif /* _FCOE_H_ */
94