drivers/target/target_core_pscsi.h

   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 struct pscsi_plugin_task {
  27         unsigned char pscsi_cdb[0];
  28 } ____cacheline_aligned;
  29
  30 #define PDF_HAS_CHANNEL_ID      0x01
  31 #define PDF_HAS_TARGET_ID       0x02
  32 #define PDF_HAS_LUN_ID          0x04
  33 #define PDF_HAS_VPD_UNIT_SERIAL 0x08
  34 #define PDF_HAS_VPD_DEV_IDENT   0x10
  35 #define PDF_HAS_VIRT_HOST_ID    0x20
  36
  37 struct pscsi_dev_virt {
  38         struct se_device dev;
  39         int     pdv_flags;
  40         int     pdv_host_id;
  41         int     pdv_channel_id;
  42         int     pdv_target_id;
  43         int     pdv_lun_id;
  44         struct block_device *pdv_bd;
  45         struct scsi_device *pdv_sd;
  46         struct Scsi_Host *pdv_lld_host;
  47 } ____cacheline_aligned;
  48
  49 typedef enum phv_modes {
  50         PHV_VIRTUAL_HOST_ID,
  51         PHV_LLD_SCSI_HOST_NO
  52 } phv_modes_t;
  53
  54 struct pscsi_hba_virt {
  55         int                     phv_host_id;
  56         phv_modes_t             phv_mode;
  57         struct Scsi_Host        *phv_lld_host;
  58 } ____cacheline_aligned;
  59
  60 #endif   /*** TARGET_CORE_PSCSI_H ***/