drivers/target/target_core_pscsi.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef TARGET_CORE_PSCSI_H
0003 #define TARGET_CORE_PSCSI_H
0004
0005 #define PSCSI_VERSION       "v4.0"
0006
0007 /* used in pscsi_find_alloc_len() */
0008 #ifndef INQUIRY_DATA_SIZE
0009 #define INQUIRY_DATA_SIZE   0x24
0010 #endif
0011
0012 /* used in pscsi_add_device_to_list() */
0013 #define PSCSI_DEFAULT_QUEUEDEPTH    1
0014
0015 #define PS_RETRY        5
0016 #define PS_TIMEOUT_DISK     (15*HZ)
0017 #define PS_TIMEOUT_OTHER    (500*HZ)
0018
0019 #include <linux/cache.h>             /* ___cacheline_aligned */
0020 #include <target/target_core_base.h> /* struct se_device */
0021
0022 struct block_device;
0023 struct scsi_device;
0024 struct Scsi_Host;
0025
0026 #define PDF_HAS_CHANNEL_ID  0x01
0027 #define PDF_HAS_TARGET_ID   0x02
0028 #define PDF_HAS_LUN_ID      0x04
0029 #define PDF_HAS_VPD_UNIT_SERIAL 0x08
0030 #define PDF_HAS_VPD_DEV_IDENT   0x10
0031 #define PDF_HAS_VIRT_HOST_ID    0x20
0032
0033 struct pscsi_dev_virt {
0034     struct se_device dev;
0035     int pdv_flags;
0036     int pdv_host_id;
0037     int pdv_channel_id;
0038     int pdv_target_id;
0039     int pdv_lun_id;
0040     struct block_device *pdv_bd;
0041     struct scsi_device *pdv_sd;
0042     struct Scsi_Host *pdv_lld_host;
0043 } ____cacheline_aligned;
0044
0045 typedef enum phv_modes {
0046     PHV_VIRTUAL_HOST_ID,
0047     PHV_LLD_SCSI_HOST_NO
0048 } phv_modes_t;
0049
0050 struct pscsi_hba_virt {
0051     int         phv_host_id;
0052     phv_modes_t     phv_mode;
0053     struct Scsi_Host    *phv_lld_host;
0054 } ____cacheline_aligned;
0055
0056 #endif   /*** TARGET_CORE_PSCSI_H ***/