include/scsi/scsi_host.h

530 struct Scsi_Host {  struct
539 	struct list_head	__devices;
540 	struct list_head	__targets;
542 	struct list_head	starved_list;
544 	spinlock_t		default_lock;
545 	spinlock_t		*host_lock;
547 	struct mutex		scan_mutex;/* serialize scanning activity */
549 	struct list_head	eh_cmd_q;
550 	struct task_struct    * ehandler;  /* Error recovery thread. */
551 	struct completion     * eh_action; /* Wait for specific actions on the
553 	wait_queue_head_t       host_wait;
554 	struct scsi_host_template *hostt;
555 	struct scsi_transport_template *transportt;
558 	struct blk_mq_tag_set	tag_set;
560 	atomic_t host_blocked;
562 	unsigned int host_failed;	   /* commands that failed.
564 	unsigned int host_eh_scheduled;    /* EH scheduled without command */
566 	unsigned int host_no;  /* Used for IOCTL_GET_IDLUN, /proc/scsi et al. */
569 	int eh_deadline;
570 	unsigned long last_reset;
579 	unsigned int max_channel;
580 	unsigned int max_id;
581 	u64 max_lun;
590 	unsigned int unique_id;
599 	unsigned short max_cmd_len;
601 	int this_id;
602 	int can_queue;
603 	short cmd_per_lun;
604 	short unsigned int sg_tablesize;
605 	short unsigned int sg_prot_tablesize;
606 	unsigned int max_sectors;
607 	unsigned int max_segment_size;
608 	unsigned long dma_boundary;
609 	unsigned long virt_boundary_mask;
618 	unsigned nr_hw_queues;
619 	unsigned active_mode:2;
620 	unsigned unchecked_isa_dma:1;
626 	unsigned host_self_blocked:1;
633 	unsigned reverse_ordering:1;
636 	unsigned tmf_in_progress:1;
639 	unsigned async_scan:1;
642 	unsigned eh_noresume:1;
645 	unsigned no_write_same:1;
648 	unsigned host_tagset:1;
651 	unsigned short_inquiry:1;
654 	unsigned no_scsi2_lun_in_cdb:1;
659 	char work_q_name[20];
660 	struct workqueue_struct *work_q;
665 	struct workqueue_struct *tmf_work_q;
670 	unsigned int max_host_blocked;
673 	unsigned int prot_capabilities;
674 	unsigned char prot_guard_type;
677 	unsigned long base;
678 	unsigned long io_port;
679 	unsigned char n_io_port;
680 	unsigned char dma_channel;
681 	unsigned int  irq;
684 	enum scsi_host_state shost_state;
687 	struct device		shost_gendev, shost_dev;
713 	container_of(d, struct Scsi_Host, shost_dev)  argument