1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ***   To edit the content of this header, modify the corresponding
11  ***   source file (e.g. under external/kernel-headers/original/) then
12  ***   run bionic/libc/kernel/tools/update_all.py
13  ***
14  ***   Any manual change here will be lost the next time this script will
15  ***   be run. You've been warned!
16  ***
17  ****************************************************************************
18  ****************************************************************************/
19 #ifndef __TARGET_CORE_USER_H
20 #define __TARGET_CORE_USER_H
21 #include <linux/types.h>
22 #include <linux/uio.h>
23 #define TCMU_VERSION "2.0"
24 #define TCMU_MAILBOX_VERSION 2
25 #define ALIGN_SIZE 64
26 #define TCMU_MAILBOX_FLAG_CAP_OOOC (1 << 0)
27 #define TCMU_MAILBOX_FLAG_CAP_READ_LEN (1 << 1)
28 #define TCMU_MAILBOX_FLAG_CAP_TMR (1 << 2)
29 struct tcmu_mailbox {
30   __u16 version;
31   __u16 flags;
32   __u32 cmdr_off;
33   __u32 cmdr_size;
34   __u32 cmd_head;
35   __u32 cmd_tail __attribute__((__aligned__(ALIGN_SIZE)));
36 } __packed;
37 enum tcmu_opcode {
38   TCMU_OP_PAD = 0,
39   TCMU_OP_CMD,
40   TCMU_OP_TMR,
41 };
42 struct tcmu_cmd_entry_hdr {
43   __u32 len_op;
44   __u16 cmd_id;
45   __u8 kflags;
46 #define TCMU_UFLAG_UNKNOWN_OP 0x1
47 #define TCMU_UFLAG_READ_LEN 0x2
48   __u8 uflags;
49 } __packed;
50 #define TCMU_OP_MASK 0x7
51 #define TCMU_SENSE_BUFFERSIZE 96
52 struct tcmu_cmd_entry {
53   struct tcmu_cmd_entry_hdr hdr;
54   union {
55     struct {
56       __u32 iov_cnt;
57       __u32 iov_bidi_cnt;
58       __u32 iov_dif_cnt;
59       __u64 cdb_off;
60       __u64 __pad1;
61       __u64 __pad2;
62       struct iovec iov[0];
63     } req;
64     struct {
65       __u8 scsi_status;
66       __u8 __pad1;
67       __u16 __pad2;
68       __u32 read_len;
69       char sense_buffer[TCMU_SENSE_BUFFERSIZE];
70     } rsp;
71   };
72 } __packed;
73 struct tcmu_tmr_entry {
74   struct tcmu_cmd_entry_hdr hdr;
75 #define TCMU_TMR_UNKNOWN 0
76 #define TCMU_TMR_ABORT_TASK 1
77 #define TCMU_TMR_ABORT_TASK_SET 2
78 #define TCMU_TMR_CLEAR_ACA 3
79 #define TCMU_TMR_CLEAR_TASK_SET 4
80 #define TCMU_TMR_LUN_RESET 5
81 #define TCMU_TMR_TARGET_WARM_RESET 6
82 #define TCMU_TMR_TARGET_COLD_RESET 7
83 #define TCMU_TMR_LUN_RESET_PRO 128
84   __u8 tmr_type;
85   __u8 __pad1;
86   __u16 __pad2;
87   __u32 cmd_cnt;
88   __u64 __pad3;
89   __u64 __pad4;
90   __u16 cmd_ids[0];
91 } __packed;
92 #define TCMU_OP_ALIGN_SIZE sizeof(__u64)
93 enum tcmu_genl_cmd {
94   TCMU_CMD_UNSPEC,
95   TCMU_CMD_ADDED_DEVICE,
96   TCMU_CMD_REMOVED_DEVICE,
97   TCMU_CMD_RECONFIG_DEVICE,
98   TCMU_CMD_ADDED_DEVICE_DONE,
99   TCMU_CMD_REMOVED_DEVICE_DONE,
100   TCMU_CMD_RECONFIG_DEVICE_DONE,
101   TCMU_CMD_SET_FEATURES,
102   __TCMU_CMD_MAX,
103 };
104 #define TCMU_CMD_MAX (__TCMU_CMD_MAX - 1)
105 enum tcmu_genl_attr {
106   TCMU_ATTR_UNSPEC,
107   TCMU_ATTR_DEVICE,
108   TCMU_ATTR_MINOR,
109   TCMU_ATTR_PAD,
110   TCMU_ATTR_DEV_CFG,
111   TCMU_ATTR_DEV_SIZE,
112   TCMU_ATTR_WRITECACHE,
113   TCMU_ATTR_CMD_STATUS,
114   TCMU_ATTR_DEVICE_ID,
115   TCMU_ATTR_SUPP_KERN_CMD_REPLY,
116   __TCMU_ATTR_MAX,
117 };
118 #define TCMU_ATTR_MAX (__TCMU_ATTR_MAX - 1)
119 #endif
120