LCOV - code coverage report
Current view: top level - drivers/scsi - scsi_priv.h (source / functions) Hit Total Coverage
Test: landlock.info Lines: 1 12 8.3 %
Date: 2021-04-22 12:43:58 Functions: 0 0 -

          Line data    Source code
       1             : /* SPDX-License-Identifier: GPL-2.0 */
       2             : #ifndef _SCSI_PRIV_H
       3             : #define _SCSI_PRIV_H
       4             : 
       5             : #include <linux/device.h>
       6             : #include <linux/async.h>
       7             : #include <scsi/scsi_device.h>
       8             : 
       9             : struct request_queue;
      10             : struct request;
      11             : struct scsi_cmnd;
      12             : struct scsi_device;
      13             : struct scsi_target;
      14             : struct scsi_host_template;
      15             : struct Scsi_Host;
      16             : struct scsi_nl_hdr;
      17             : 
      18             : #define SCSI_CMD_RETRIES_NO_LIMIT -1
      19             : 
      20             : /*
      21             :  * Scsi Error Handler Flags
      22             :  */
      23             : #define SCSI_EH_ABORT_SCHEDULED 0x0002  /* Abort has been scheduled */
      24             : 
      25             : #define SCSI_SENSE_VALID(scmd) \
      26             :         (((scmd)->sense_buffer[0] & 0x70) == 0x70)
      27             : 
      28             : /* hosts.c */
      29             : extern int scsi_init_hosts(void);
      30             : extern void scsi_exit_hosts(void);
      31             : 
      32             : /* scsi.c */
      33             : int scsi_init_sense_cache(struct Scsi_Host *shost);
      34             : void scsi_init_command(struct scsi_device *dev, struct scsi_cmnd *cmd);
      35             : #ifdef CONFIG_SCSI_LOGGING
      36             : void scsi_log_send(struct scsi_cmnd *cmd);
      37             : void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
      38             : #else
      39           0 : static inline void scsi_log_send(struct scsi_cmnd *cmd) 
      40           0 :         { };
      41           0 : static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
      42           0 :         { };
      43             : #endif
      44             : 
      45             : /* scsi_devinfo.c */
      46             : 
      47             : /* list of keys for the lists */
      48             : enum scsi_devinfo_key {
      49             :         SCSI_DEVINFO_GLOBAL = 0,
      50             :         SCSI_DEVINFO_SPI,
      51             : };
      52             : 
      53             : extern blist_flags_t scsi_get_device_flags(struct scsi_device *sdev,
      54             :                                            const unsigned char *vendor,
      55             :                                            const unsigned char *model);
      56             : extern blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev,
      57             :                                                  const unsigned char *vendor,
      58             :                                                  const unsigned char *model,
      59             :                                                  enum scsi_devinfo_key key);
      60             : extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
      61             :                                         char *model, char *strflags,
      62             :                                         blist_flags_t flags,
      63             :                                         enum scsi_devinfo_key key);
      64             : extern int scsi_dev_info_list_del_keyed(char *vendor, char *model,
      65             :                                         enum scsi_devinfo_key key);
      66             : extern int scsi_dev_info_add_list(enum scsi_devinfo_key key, const char *name);
      67             : extern int scsi_dev_info_remove_list(enum scsi_devinfo_key key);
      68             : 
      69             : extern int __init scsi_init_devinfo(void);
      70             : extern void scsi_exit_devinfo(void);
      71             : 
      72             : /* scsi_error.c */
      73             : extern void scmd_eh_abort_handler(struct work_struct *work);
      74             : extern enum blk_eh_timer_return scsi_times_out(struct request *req);
      75             : extern int scsi_error_handler(void *host);
      76             : extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
      77             : extern void scsi_eh_wakeup(struct Scsi_Host *shost);
      78             : extern void scsi_eh_scmd_add(struct scsi_cmnd *);
      79             : void scsi_eh_ready_devs(struct Scsi_Host *shost,
      80             :                         struct list_head *work_q,
      81             :                         struct list_head *done_q);
      82             : int scsi_eh_get_sense(struct list_head *work_q,
      83             :                       struct list_head *done_q);
      84             : int scsi_noretry_cmd(struct scsi_cmnd *scmd);
      85             : 
      86             : /* scsi_lib.c */
      87             : extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
      88             : extern void scsi_device_unbusy(struct scsi_device *sdev, struct scsi_cmnd *cmd);
      89             : extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
      90             : extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
      91             : extern void scsi_run_host_queues(struct Scsi_Host *shost);
      92             : extern void scsi_requeue_run_queue(struct work_struct *work);
      93             : extern struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev);
      94             : extern void scsi_start_queue(struct scsi_device *sdev);
      95             : extern int scsi_mq_setup_tags(struct Scsi_Host *shost);
      96             : extern void scsi_mq_destroy_tags(struct Scsi_Host *shost);
      97             : extern void scsi_exit_queue(void);
      98             : extern void scsi_evt_thread(struct work_struct *work);
      99             : struct request_queue;
     100             : struct request;
     101             : 
     102             : /* scsi_proc.c */
     103             : #ifdef CONFIG_SCSI_PROC_FS
     104             : extern void scsi_proc_hostdir_add(struct scsi_host_template *);
     105             : extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
     106             : extern void scsi_proc_host_add(struct Scsi_Host *);
     107             : extern void scsi_proc_host_rm(struct Scsi_Host *);
     108             : extern int scsi_init_procfs(void);
     109             : extern void scsi_exit_procfs(void);
     110             : #else
     111             : # define scsi_proc_hostdir_add(sht)     do { } while (0)
     112             : # define scsi_proc_hostdir_rm(sht)      do { } while (0)
     113             : # define scsi_proc_host_add(shost)      do { } while (0)
     114             : # define scsi_proc_host_rm(shost)       do { } while (0)
     115             : # define scsi_init_procfs()             (0)
     116             : # define scsi_exit_procfs()             do { } while (0)
     117             : #endif /* CONFIG_PROC_FS */
     118             : 
     119             : /* scsi_scan.c */
     120             : extern char scsi_scan_type[];
     121             : extern int scsi_complete_async_scans(void);
     122             : extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
     123             :                                    unsigned int, u64, enum scsi_scan_mode);
     124             : extern void scsi_forget_host(struct Scsi_Host *);
     125             : extern void scsi_rescan_device(struct device *);
     126             : 
     127             : /* scsi_sysctl.c */
     128             : #ifdef CONFIG_SYSCTL
     129             : extern int scsi_init_sysctl(void);
     130             : extern void scsi_exit_sysctl(void);
     131             : #else
     132             : # define scsi_init_sysctl()             (0)
     133             : # define scsi_exit_sysctl()             do { } while (0)
     134             : #endif /* CONFIG_SYSCTL */
     135             : 
     136             : /* scsi_sysfs.c */
     137             : extern int scsi_sysfs_add_sdev(struct scsi_device *);
     138             : extern int scsi_sysfs_add_host(struct Scsi_Host *);
     139             : extern int scsi_sysfs_register(void);
     140             : extern void scsi_sysfs_unregister(void);
     141             : extern void scsi_sysfs_device_initialize(struct scsi_device *);
     142             : extern int scsi_sysfs_target_initialize(struct scsi_device *);
     143             : extern struct scsi_transport_template blank_transport_template;
     144             : extern void __scsi_remove_device(struct scsi_device *);
     145             : 
     146             : extern struct bus_type scsi_bus_type;
     147             : extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
     148             : 
     149             : /* scsi_netlink.c */
     150             : #ifdef CONFIG_SCSI_NETLINK
     151             : extern void scsi_netlink_init(void);
     152             : extern void scsi_netlink_exit(void);
     153             : extern struct sock *scsi_nl_sock;
     154             : #else
     155           1 : static inline void scsi_netlink_init(void) {}
     156           0 : static inline void scsi_netlink_exit(void) {}
     157             : #endif
     158             : 
     159             : /* scsi_pm.c */
     160             : #ifdef CONFIG_PM
     161             : extern const struct dev_pm_ops scsi_bus_pm_ops;
     162             : 
     163             : extern void scsi_autopm_get_target(struct scsi_target *);
     164             : extern void scsi_autopm_put_target(struct scsi_target *);
     165             : extern int scsi_autopm_get_host(struct Scsi_Host *);
     166             : extern void scsi_autopm_put_host(struct Scsi_Host *);
     167             : #else
     168           0 : static inline void scsi_autopm_get_target(struct scsi_target *t) {}
     169           0 : static inline void scsi_autopm_put_target(struct scsi_target *t) {}
     170           0 : static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
     171           0 : static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
     172             : #endif /* CONFIG_PM */
     173             : 
     174             : extern struct async_domain scsi_sd_pm_domain;
     175             : 
     176             : /* scsi_dh.c */
     177             : #ifdef CONFIG_SCSI_DH
     178             : void scsi_dh_add_device(struct scsi_device *sdev);
     179             : void scsi_dh_release_device(struct scsi_device *sdev);
     180             : #else
     181           0 : static inline void scsi_dh_add_device(struct scsi_device *sdev) { }
     182           0 : static inline void scsi_dh_release_device(struct scsi_device *sdev) { }
     183             : #endif
     184             : 
     185             : /* 
     186             :  * internal scsi timeout functions: for use by mid-layer and transport
     187             :  * classes.
     188             :  */
     189             : 
     190             : #define SCSI_DEVICE_BLOCK_MAX_TIMEOUT   600     /* units in seconds */
     191             : 
     192             : #endif /* _SCSI_PRIV_H */

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