xref: /linux/drivers/target/target_core_pscsi.h (revision a36e9f5cfe9eb3a1dce8769c7058251c42705357)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef TARGET_CORE_PSCSI_H
3 #define TARGET_CORE_PSCSI_H
4 
5 #define PSCSI_VERSION		"v4.0"
6 
7 /* used in pscsi_find_alloc_len() */
8 #ifndef INQUIRY_DATA_SIZE
9 #define INQUIRY_DATA_SIZE	0x24
10 #endif
11 
12 /* used in pscsi_add_device_to_list() */
13 #define PSCSI_DEFAULT_QUEUEDEPTH	1
14 
15 #define PS_RETRY		5
16 #define PS_TIMEOUT_DISK		(15*HZ)
17 #define PS_TIMEOUT_OTHER	(500*HZ)
18 
19 #include <linux/cache.h>             /* ___cacheline_aligned */
20 #include <target/target_core_base.h> /* struct se_device */
21 
22 struct block_device;
23 struct scsi_device;
24 struct Scsi_Host;
25 
26 #define PDF_HAS_CHANNEL_ID	0x01
27 #define PDF_HAS_TARGET_ID	0x02
28 #define PDF_HAS_LUN_ID		0x04
29 #define PDF_HAS_VPD_UNIT_SERIAL 0x08
30 #define PDF_HAS_VPD_DEV_IDENT	0x10
31 #define PDF_HAS_VIRT_HOST_ID	0x20
32 
33 struct pscsi_dev_virt {
34 	struct se_device dev;
35 	int	pdv_flags;
36 	int	pdv_host_id;
37 	int	pdv_channel_id;
38 	int	pdv_target_id;
39 	int	pdv_lun_id;
40 	struct file *pdv_bdev_file;
41 	struct scsi_device *pdv_sd;
42 	struct Scsi_Host *pdv_lld_host;
43 } ____cacheline_aligned;
44 
45 typedef enum phv_modes {
46 	PHV_VIRTUAL_HOST_ID,
47 	PHV_LLD_SCSI_HOST_NO
48 } phv_modes_t;
49 
50 struct pscsi_hba_virt {
51 	int			phv_host_id;
52 	phv_modes_t		phv_mode;
53 	struct Scsi_Host	*phv_lld_host;
54 } ____cacheline_aligned;
55 
56 #endif   /*** TARGET_CORE_PSCSI_H ***/
57