blob: 68b9f855073bd5fa85de1179fddea891a173e475 [file] [log] [blame]
Vasu Devfdd78022009-03-17 11:42:24 -07001/*
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_LOW_QUEUE_DEPTH 32
28
Vasu Devfdd78022009-03-17 11:42:24 -070029#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 255
36#define FCOE_MAX_FCP_TARGET 256
37
38#define FCOE_MAX_OUTSTANDING_COMMANDS 1024
39
Vasu Devd7179682009-07-29 17:05:21 -070040#define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */
Vasu Devfdd78022009-03-17 11:42:24 -070041#define FCOE_MAX_XID 0x07ef /* the max xid supported by fcoe_sw */
42
Robert Loved5488eb2009-06-10 15:30:59 -070043unsigned int fcoe_debug_logging;
44module_param_named(debug_logging, fcoe_debug_logging, int, S_IRUGO|S_IWUSR);
45MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
46
47#define FCOE_LOGGING 0x01 /* General logging, not categorized */
48#define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */
49
50#define FCOE_CHECK_LOGGING(LEVEL, CMD) \
51do { \
52 if (unlikely(fcoe_debug_logging & LEVEL)) \
53 do { \
54 CMD; \
55 } while (0); \
56} while (0);
57
58#define FCOE_DBG(fmt, args...) \
59 FCOE_CHECK_LOGGING(FCOE_LOGGING, \
60 printk(KERN_INFO "fcoe: " fmt, ##args);)
61
62#define FCOE_NETDEV_DBG(netdev, fmt, args...) \
63 FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING, \
Robert Loveee610c62009-08-25 13:58:31 -070064 printk(KERN_INFO "fcoe: %s: " fmt, \
Robert Loved5488eb2009-06-10 15:30:59 -070065 netdev->name, ##args);)
66
Vasu Devfdd78022009-03-17 11:42:24 -070067/*
68 * this percpu struct for fcoe
69 */
70struct fcoe_percpu_s {
71 struct task_struct *thread;
72 struct sk_buff_head fcoe_rx_list;
73 struct page *crc_eof_page;
74 int crc_eof_offset;
75};
76
77/*
78 * the fcoe sw transport private data
79 */
80struct fcoe_softc {
81 struct list_head list;
Vasu Dev1d1b88d2009-07-29 17:05:45 -070082 struct net_device *netdev;
Vasu Devd7179682009-07-29 17:05:21 -070083 struct fc_exch_mgr *oem; /* offload exchange manger */
Vasu Devfdd78022009-03-17 11:42:24 -070084 struct packet_type fcoe_packet_type;
Joe Eykholt97c83892009-03-17 11:42:40 -070085 struct packet_type fip_packet_type;
Vasu Devfdd78022009-03-17 11:42:24 -070086 struct sk_buff_head fcoe_pending_queue;
87 u8 fcoe_pending_queue_active;
Vasu Dev1047f222009-05-06 10:52:40 -070088 struct timer_list timer; /* queue timer */
Joe Eykholt97c83892009-03-17 11:42:40 -070089 struct fcoe_ctlr ctlr;
Vasu Devfdd78022009-03-17 11:42:24 -070090};
91
Joe Eykholt97c83892009-03-17 11:42:40 -070092#define fcoe_from_ctlr(fc) container_of(fc, struct fcoe_softc, ctlr)
93
Vasu Devfdd78022009-03-17 11:42:24 -070094static inline struct net_device *fcoe_netdev(
95 const struct fc_lport *lp)
96{
Vasu Dev1d1b88d2009-07-29 17:05:45 -070097 return ((struct fcoe_softc *)lport_priv(lp))->netdev;
Vasu Devfdd78022009-03-17 11:42:24 -070098}
99
100#endif /* _FCOE_H_ */