include/scsi/fcoe_sysfs.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2011-2012 Intel Corporation.  All rights reserved.
   4  *
   5  * Maintained at www.Open-FCoE.org
   6  */
   7
   8 #ifndef FCOE_SYSFS
   9 #define FCOE_SYSFS
  10
  11 #include <linux/if_ether.h>
  12 #include <linux/device.h>
  13 #include <scsi/fc/fc_fcoe.h>
  14
  15 struct fcoe_ctlr_device;
  16 struct fcoe_fcf_device;
  17
  18 struct fcoe_sysfs_function_template {
  19         void (*get_fcoe_ctlr_link_fail)(struct fcoe_ctlr_device *);
  20         void (*get_fcoe_ctlr_vlink_fail)(struct fcoe_ctlr_device *);
  21         void (*get_fcoe_ctlr_miss_fka)(struct fcoe_ctlr_device *);
  22         void (*get_fcoe_ctlr_symb_err)(struct fcoe_ctlr_device *);
  23         void (*get_fcoe_ctlr_err_block)(struct fcoe_ctlr_device *);
  24         void (*get_fcoe_ctlr_fcs_error)(struct fcoe_ctlr_device *);
  25         void (*set_fcoe_ctlr_mode)(struct fcoe_ctlr_device *);
  26         int  (*set_fcoe_ctlr_enabled)(struct fcoe_ctlr_device *);
  27         void (*get_fcoe_fcf_selected)(struct fcoe_fcf_device *);
  28         void (*get_fcoe_fcf_vlan_id)(struct fcoe_fcf_device *);
  29 };
  30
  31 #define dev_to_ctlr(d)                                  \
  32         container_of((d), struct fcoe_ctlr_device, dev)
  33
  34 enum fip_conn_type {
  35         FIP_CONN_TYPE_UNKNOWN,
  36         FIP_CONN_TYPE_FABRIC,
  37         FIP_CONN_TYPE_VN2VN,
  38 };
  39
  40 enum ctlr_enabled_state {
  41         FCOE_CTLR_ENABLED,
  42         FCOE_CTLR_DISABLED,
  43         FCOE_CTLR_UNUSED,
  44 };
  45
  46 struct fcoe_ctlr_device {
  47         u32                             id;
  48
  49         struct device                   dev;
  50         struct fcoe_sysfs_function_template *f;
  51
  52         struct list_head                fcfs;
  53         char                            work_q_name[20];
  54         struct workqueue_struct         *work_q;
  55         char                            devloss_work_q_name[20];
  56         struct workqueue_struct         *devloss_work_q;
  57         struct mutex                    lock;
  58
  59         int                             fcf_dev_loss_tmo;
  60         enum fip_conn_type              mode;
  61
  62         enum ctlr_enabled_state         enabled;
  63
  64         /* expected in host order for displaying */
  65         struct fcoe_fc_els_lesb         lesb;
  66 };
  67
  68 static inline void *fcoe_ctlr_device_priv(const struct fcoe_ctlr_device *ctlr)
  69 {
  70         return (void *)(ctlr + 1);
  71 }
  72
  73 /* fcf states */
  74 enum fcf_state {
  75         FCOE_FCF_STATE_UNKNOWN,
  76         FCOE_FCF_STATE_DISCONNECTED,
  77         FCOE_FCF_STATE_CONNECTED,
  78         FCOE_FCF_STATE_DELETED,
  79 };
  80
  81 struct fcoe_fcf_device {
  82         u32                 id;
  83         struct device       dev;
  84         struct list_head    peers;
  85         struct work_struct  delete_work;
  86         struct delayed_work dev_loss_work;
  87         u32                 dev_loss_tmo;
  88         void                *priv;
  89         enum fcf_state      state;
  90
  91         u64                 fabric_name;
  92         u64                 switch_name;
  93         u32                 fc_map;
  94         u16                 vfid;
  95         u8                  mac[ETH_ALEN];
  96         u8                  priority;
  97         u32                 fka_period;
  98         u8                  selected;
  99         u16                 vlan_id;
 100 };
 101
 102 #define dev_to_fcf(d)                                   \
 103         container_of((d), struct fcoe_fcf_device, dev)
 104 /* parentage should never be missing */
 105 #define fcoe_fcf_dev_to_ctlr_dev(x)             \
 106         dev_to_ctlr((x)->dev.parent)
 107 #define fcoe_fcf_device_priv(x)                 \
 108         ((x)->priv)
 109
 110 struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
 111                             struct fcoe_sysfs_function_template *f,
 112                             int priv_size);
 113 void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *);
 114 struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *,
 115                                             struct fcoe_fcf_device *);
 116 void fcoe_fcf_device_delete(struct fcoe_fcf_device *);
 117
 118 int __init fcoe_sysfs_setup(void);
 119 void __exit fcoe_sysfs_teardown(void);
 120
 121 #endif /* FCOE_SYSFS */