Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/include/scsi/scsi_transport.h
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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Transport specific attributes. * * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved. */ #ifndef SCSI_TRANSPORT_H #define SCSI_TRANSPORT_H #include <linux/transport_class.h> #include <linux/blkdev.h> #include <linux/bug.h> #include <scsi/scsi_host.h> #include <scsi/scsi_device.h> struct scsi_transport_template { /* the attribute containers */ struct transport_container host_attrs; struct transport_container target_attrs; struct transport_container device_attrs; /* * If set, called from sysfs and legacy procfs rescanning code. */ int (*user_scan)(struct Scsi_Host *, uint, uint, u64); /* The size of the specific transport attribute structure (a * space of this size will be left at the end of the * scsi_* structure */ int device_size; int device_private_offset; int target_size; int target_private_offset; int host_size; /* no private offset for the host; there's an alternative mechanism */ /* * True if the transport wants to use a host-based work-queue */ unsigned int create_work_queue : 1; /* * Allows a transport to override the default error handler. */ void (* eh_strategy_handler)(struct Scsi_Host *); }; #define transport_class_to_shost(tc) \ dev_to_shost((tc)->parent) /* Private area maintenance. The driver requested allocations come * directly after the transport class allocations (if any). The idea * is that you *must* call these only once. The code assumes that the * initial values are the ones the transport specific code requires */ static inline void scsi_transport_reserve_target(struct scsi_transport_template * t, int space) { BUG_ON(t->target_private_offset != 0); t->target_private_offset = ALIGN(t->target_size, sizeof(void *)); t->target_size = t->target_private_offset + space; } static inline void scsi_transport_reserve_device(struct scsi_transport_template * t, int space) { BUG_ON(t->device_private_offset != 0); t->device_private_offset = ALIGN(t->device_size, sizeof(void *)); t->device_size = t->device_private_offset + space; } static inline void * scsi_transport_target_data(struct scsi_target *starget) { struct Scsi_Host *shost = dev_to_shost(&starget->dev); return (u8 *)starget->starget_data + shost->transportt->target_private_offset; } static inline void * scsi_transport_device_data(struct scsi_device *sdev) { struct Scsi_Host *shost = sdev->host; return (u8 *)sdev->sdev_data + shost->transportt->device_private_offset; } void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q); #endif /* SCSI_TRANSPORT_H */
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