1/*
  2 * Copyright (c) 2011-2012 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_SYSFS
 21#define FCOE_SYSFS
 22
 23#include <linux/if_ether.h>
 24#include <linux/device.h>
 25#include <scsi/fc/fc_fcoe.h>
 26
 27struct fcoe_ctlr_device;
 28struct fcoe_fcf_device;
 29
 30struct fcoe_sysfs_function_template {
 31	void (*get_fcoe_ctlr_link_fail)(struct fcoe_ctlr_device *);
 32	void (*get_fcoe_ctlr_vlink_fail)(struct fcoe_ctlr_device *);
 33	void (*get_fcoe_ctlr_miss_fka)(struct fcoe_ctlr_device *);
 34	void (*get_fcoe_ctlr_symb_err)(struct fcoe_ctlr_device *);
 35	void (*get_fcoe_ctlr_err_block)(struct fcoe_ctlr_device *);
 36	void (*get_fcoe_ctlr_fcs_error)(struct fcoe_ctlr_device *);
 37	void (*get_fcoe_ctlr_mode)(struct fcoe_ctlr_device *);
 38	void (*get_fcoe_fcf_selected)(struct fcoe_fcf_device *);
 39	void (*get_fcoe_fcf_vlan_id)(struct fcoe_fcf_device *);
 40};
 41
 42#define dev_to_ctlr(d)					\
 43	container_of((d), struct fcoe_ctlr_device, dev)
 44
 45enum fip_conn_type {
 46	FIP_CONN_TYPE_UNKNOWN,
 47	FIP_CONN_TYPE_FABRIC,
 48	FIP_CONN_TYPE_VN2VN,
 49};
 50
 51struct fcoe_ctlr_device {
 52	u32				id;
 53
 54	struct device			dev;
 55	struct fcoe_sysfs_function_template *f;
 56
 57	struct list_head		fcfs;
 58	char				work_q_name[20];
 59	struct workqueue_struct		*work_q;
 60	char				devloss_work_q_name[20];
 61	struct workqueue_struct		*devloss_work_q;
 62	struct mutex			lock;
 63
 64	int                             fcf_dev_loss_tmo;
 65	enum fip_conn_type              mode;
 66
 67	/* expected in host order for displaying */
 68	struct fcoe_fc_els_lesb         lesb;
 69};
 70
 71static inline void *fcoe_ctlr_device_priv(const struct fcoe_ctlr_device *ctlr)
 72{
 73	return (void *)(ctlr + 1);
 74}
 75
 76/* fcf states */
 77enum fcf_state {
 78	FCOE_FCF_STATE_UNKNOWN,
 79	FCOE_FCF_STATE_DISCONNECTED,
 80	FCOE_FCF_STATE_CONNECTED,
 81	FCOE_FCF_STATE_DELETED,
 82};
 83
 84struct fcoe_fcf_device {
 85	u32		    id;
 86	struct device	    dev;
 87	struct list_head    peers;
 88	struct work_struct  delete_work;
 89	struct delayed_work dev_loss_work;
 90	u32		    dev_loss_tmo;
 91	void                *priv;
 92	enum fcf_state      state;
 93
 94	u64                 fabric_name;
 95	u64                 switch_name;
 96	u32                 fc_map;
 97	u16                 vfid;
 98	u8                  mac[ETH_ALEN];
 99	u8                  priority;
100	u32                 fka_period;
101	u8                  selected;
102	u16                 vlan_id;
103};
104
105#define dev_to_fcf(d)					\
106	container_of((d), struct fcoe_fcf_device, dev)
107/* parentage should never be missing */
108#define fcoe_fcf_dev_to_ctlr_dev(x)		\
109	dev_to_ctlr((x)->dev.parent)
110#define fcoe_fcf_device_priv(x)			\
111	((x)->priv)
112
113struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
114			    struct fcoe_sysfs_function_template *f,
115			    int priv_size);
116void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *);
117struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *,
118					    struct fcoe_fcf_device *);
119void fcoe_fcf_device_delete(struct fcoe_fcf_device *);
120
121int __init fcoe_sysfs_setup(void);
122void __exit fcoe_sysfs_teardown(void);
123
124#endif /* FCOE_SYSFS */