tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
27#define FCOE_MIN_QUEUE_DEPTH 32
28
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
35#define FCOE_MAX_LUN 0xFFFF
36#define FCOE_MAX_FCP_TARGET 256
37
38#define FCOE_MAX_OUTSTANDING_COMMANDS 1024
39
40#define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */
41#define FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */
42
43extern unsigned int fcoe_debug_logging;
44
45#define FCOE_LOGGING 0x01 /* General logging, not categorized */
46#define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */
47
48#define FCOE_CHECK_LOGGING(LEVEL, CMD) \
49do { \
50 if (unlikely(fcoe_debug_logging & LEVEL)) \
51 do { \
52 CMD; \
53 } while (0); \
54} while (0)
55
56#define FCOE_DBG(fmt, args...) \
57 FCOE_CHECK_LOGGING(FCOE_LOGGING, \
58 printk(KERN_INFO "fcoe: " fmt, ##args);)
59
60#define FCOE_NETDEV_DBG(netdev, fmt, args...) \
61 FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING, \
62 printk(KERN_INFO "fcoe: %s: " fmt, \
63 netdev->name, ##args);)
64
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
71 * @ctlr: The FCoE controller (for FIP)
72 * @oem: The offload exchange manager for all local port
73 * instances associated with this port
74 * @kref: The kernel reference
75 *
76 * This structure is 1:1 with a net devive.
77 */
78struct fcoe_interface {
79 struct list_head list;
80 struct net_device *netdev;
81 struct net_device *realdev;
82 struct packet_type fcoe_packet_type;
83 struct packet_type fip_packet_type;
84 struct fcoe_ctlr ctlr;
85 struct fc_exch_mgr *oem;
86 struct kref kref;
87};
88
89#define fcoe_from_ctlr(fip) container_of(fip, struct fcoe_interface, ctlr)
90
91/**
92 * fcoe_netdev() - Return the net device associated with a local port
93 * @lport: The local port to get the net device from
94 */
95static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
96{
97 return ((struct fcoe_interface *)
98 ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
99}
100
101#endif /* _FCOE_H_ */