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kernel/linux-imx6_3.14.28/include/scsi/fcoe_sysfs.h 3.75 KB
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  /*
   * Copyright (c) 2011-2012 Intel Corporation.  All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms and conditions of the GNU General Public License,
   * version 2, as published by the Free Software Foundation.
   *
   * This program is distributed in the hope it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   * more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Maintained at www.Open-FCoE.org
   */
  
  #ifndef FCOE_SYSFS
  #define FCOE_SYSFS
  
  #include <linux/if_ether.h>
  #include <linux/device.h>
  #include <scsi/fc/fc_fcoe.h>
  
  struct fcoe_ctlr_device;
  struct fcoe_fcf_device;
  
  struct fcoe_sysfs_function_template {
  	void (*get_fcoe_ctlr_link_fail)(struct fcoe_ctlr_device *);
  	void (*get_fcoe_ctlr_vlink_fail)(struct fcoe_ctlr_device *);
  	void (*get_fcoe_ctlr_miss_fka)(struct fcoe_ctlr_device *);
  	void (*get_fcoe_ctlr_symb_err)(struct fcoe_ctlr_device *);
  	void (*get_fcoe_ctlr_err_block)(struct fcoe_ctlr_device *);
  	void (*get_fcoe_ctlr_fcs_error)(struct fcoe_ctlr_device *);
  	void (*set_fcoe_ctlr_mode)(struct fcoe_ctlr_device *);
  	int  (*set_fcoe_ctlr_enabled)(struct fcoe_ctlr_device *);
  	void (*get_fcoe_fcf_selected)(struct fcoe_fcf_device *);
  	void (*get_fcoe_fcf_vlan_id)(struct fcoe_fcf_device *);
  };
  
  #define dev_to_ctlr(d)					\
  	container_of((d), struct fcoe_ctlr_device, dev)
  
  enum fip_conn_type {
  	FIP_CONN_TYPE_UNKNOWN,
  	FIP_CONN_TYPE_FABRIC,
  	FIP_CONN_TYPE_VN2VN,
  };
  
  enum ctlr_enabled_state {
  	FCOE_CTLR_ENABLED,
  	FCOE_CTLR_DISABLED,
  	FCOE_CTLR_UNUSED,
  };
  
  struct fcoe_ctlr_device {
  	u32				id;
  
  	struct device			dev;
  	struct fcoe_sysfs_function_template *f;
  
  	struct list_head		fcfs;
  	char				work_q_name[20];
  	struct workqueue_struct		*work_q;
  	char				devloss_work_q_name[20];
  	struct workqueue_struct		*devloss_work_q;
  	struct mutex			lock;
  
  	int                             fcf_dev_loss_tmo;
  	enum fip_conn_type              mode;
  
  	enum ctlr_enabled_state         enabled;
  
  	/* expected in host order for displaying */
  	struct fcoe_fc_els_lesb         lesb;
  };
  
  static inline void *fcoe_ctlr_device_priv(const struct fcoe_ctlr_device *ctlr)
  {
  	return (void *)(ctlr + 1);
  }
  
  /* fcf states */
  enum fcf_state {
  	FCOE_FCF_STATE_UNKNOWN,
  	FCOE_FCF_STATE_DISCONNECTED,
  	FCOE_FCF_STATE_CONNECTED,
  	FCOE_FCF_STATE_DELETED,
  };
  
  struct fcoe_fcf_device {
  	u32		    id;
  	struct device	    dev;
  	struct list_head    peers;
  	struct work_struct  delete_work;
  	struct delayed_work dev_loss_work;
  	u32		    dev_loss_tmo;
  	void                *priv;
  	enum fcf_state      state;
  
  	u64                 fabric_name;
  	u64                 switch_name;
  	u32                 fc_map;
  	u16                 vfid;
  	u8                  mac[ETH_ALEN];
  	u8                  priority;
  	u32                 fka_period;
  	u8                  selected;
  	u16                 vlan_id;
  };
  
  #define dev_to_fcf(d)					\
  	container_of((d), struct fcoe_fcf_device, dev)
  /* parentage should never be missing */
  #define fcoe_fcf_dev_to_ctlr_dev(x)		\
  	dev_to_ctlr((x)->dev.parent)
  #define fcoe_fcf_device_priv(x)			\
  	((x)->priv)
  
  struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
  			    struct fcoe_sysfs_function_template *f,
  			    int priv_size);
  void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *);
  struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *,
  					    struct fcoe_fcf_device *);
  void fcoe_fcf_device_delete(struct fcoe_fcf_device *);
  
  int __init fcoe_sysfs_setup(void);
  void __exit fcoe_sysfs_teardown(void);
  
  #endif /* FCOE_SYSFS */