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 struct tcmu_mailbox { 28 __u16 version; 29 __u16 flags; 30 __u32 cmdr_off; 31 __u32 cmdr_size; 32 __u32 cmd_head; 33 __u32 cmd_tail __attribute__((__aligned__(ALIGN_SIZE))); 34 } __packed; 35 enum tcmu_opcode { 36 TCMU_OP_PAD = 0, 37 TCMU_OP_CMD, 38 }; 39 struct tcmu_cmd_entry_hdr { 40 __u32 len_op; 41 __u16 cmd_id; 42 __u8 kflags; 43 #define TCMU_UFLAG_UNKNOWN_OP 0x1 44 __u8 uflags; 45 } __packed; 46 #define TCMU_OP_MASK 0x7 47 #define TCMU_SENSE_BUFFERSIZE 96 48 struct tcmu_cmd_entry { 49 struct tcmu_cmd_entry_hdr hdr; 50 union { 51 struct { 52 __u32 iov_cnt; 53 __u32 iov_bidi_cnt; 54 __u32 iov_dif_cnt; 55 __u64 cdb_off; 56 __u64 __pad1; 57 __u64 __pad2; 58 struct iovec iov[0]; 59 } req; 60 struct { 61 __u8 scsi_status; 62 __u8 __pad1; 63 __u16 __pad2; 64 __u32 __pad3; 65 char sense_buffer[TCMU_SENSE_BUFFERSIZE]; 66 } rsp; 67 }; 68 } __packed; 69 #define TCMU_OP_ALIGN_SIZE sizeof(__u64) 70 enum tcmu_genl_cmd { 71 TCMU_CMD_UNSPEC, 72 TCMU_CMD_ADDED_DEVICE, 73 TCMU_CMD_REMOVED_DEVICE, 74 TCMU_CMD_RECONFIG_DEVICE, 75 TCMU_CMD_ADDED_DEVICE_DONE, 76 TCMU_CMD_REMOVED_DEVICE_DONE, 77 TCMU_CMD_RECONFIG_DEVICE_DONE, 78 TCMU_CMD_SET_FEATURES, 79 __TCMU_CMD_MAX, 80 }; 81 #define TCMU_CMD_MAX (__TCMU_CMD_MAX - 1) 82 enum tcmu_genl_attr { 83 TCMU_ATTR_UNSPEC, 84 TCMU_ATTR_DEVICE, 85 TCMU_ATTR_MINOR, 86 TCMU_ATTR_PAD, 87 TCMU_ATTR_DEV_CFG, 88 TCMU_ATTR_DEV_SIZE, 89 TCMU_ATTR_WRITECACHE, 90 TCMU_ATTR_CMD_STATUS, 91 TCMU_ATTR_DEVICE_ID, 92 TCMU_ATTR_SUPP_KERN_CMD_REPLY, 93 __TCMU_ATTR_MAX, 94 }; 95 #define TCMU_ATTR_MAX (__TCMU_ATTR_MAX - 1) 96 #endif 97