include/scsi/scsi_host.h

524 struct Scsi_Host {  struct
533 	struct list_head	__devices;
534 	struct list_head	__targets;
536 	struct list_head	starved_list;
538 	spinlock_t		default_lock;
539 	spinlock_t		*host_lock;
541 	struct mutex		scan_mutex;/* serialize scanning activity */
543 	struct list_head	eh_cmd_q;
544 	struct task_struct    * ehandler;  /* Error recovery thread. */
545 	struct completion     * eh_action; /* Wait for specific actions on the
547 	wait_queue_head_t       host_wait;
548 	struct scsi_host_template *hostt;
549 	struct scsi_transport_template *transportt;
552 	struct blk_mq_tag_set	tag_set;
554 	atomic_t host_blocked;
556 	unsigned int host_failed;	   /* commands that failed.
558 	unsigned int host_eh_scheduled;    /* EH scheduled without command */
560 	unsigned int host_no;  /* Used for IOCTL_GET_IDLUN, /proc/scsi et al. */
563 	int eh_deadline;
564 	unsigned long last_reset;
573 	unsigned int max_channel;
574 	unsigned int max_id;
575 	u64 max_lun;
584 	unsigned int unique_id;
593 	unsigned short max_cmd_len;
595 	int this_id;
596 	int can_queue;
597 	short cmd_per_lun;
598 	short unsigned int sg_tablesize;
599 	short unsigned int sg_prot_tablesize;
600 	unsigned int max_sectors;
601 	unsigned int max_segment_size;
602 	unsigned long dma_boundary;
603 	unsigned long virt_boundary_mask;
612 	unsigned nr_hw_queues;
613 	unsigned active_mode:2;
614 	unsigned unchecked_isa_dma:1;
620 	unsigned host_self_blocked:1;
627 	unsigned reverse_ordering:1;
630 	unsigned tmf_in_progress:1;
633 	unsigned async_scan:1;
636 	unsigned eh_noresume:1;
639 	unsigned no_write_same:1;
642 	unsigned host_tagset:1;
645 	unsigned short_inquiry:1;
648 	unsigned no_scsi2_lun_in_cdb:1;
653 	char work_q_name[20];
654 	struct workqueue_struct *work_q;
659 	struct workqueue_struct *tmf_work_q;
664 	unsigned int max_host_blocked;
667 	unsigned int prot_capabilities;
668 	unsigned char prot_guard_type;
671 	unsigned long base;
672 	unsigned long io_port;
673 	unsigned char n_io_port;
674 	unsigned char dma_channel;
675 	unsigned int  irq;
678 	enum scsi_host_state shost_state;
681 	struct device		shost_gendev, shost_dev;
705 	container_of(d, struct Scsi_Host, shost_dev)  argument