MAJOR=4 MINOR=19 DEVNAME=tty19 "l4()P@ z S h30 *l=J!e8Ep Tţ u_I|+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * CXL IOCTLs for Memory Devices */ #ifndef _CXL_MEM_H_ #define _CXL_MEM_H_ #include /** * DOC: UAPI * * Not all of all commands that the driver supports are always available for use * by userspace. Userspace must check the results from the QUERY command in * order to determine the live set of commands. */ #define CXL_MEM_QUERY_COMMANDS _IOR(0xCE, 1, struct cxl_mem_query_commands) #define CXL_MEM_SEND_COMMAND _IOWR(0xCE, 2, struct cxl_send_command) #define CXL_CMDS \ ___C(INVALID, "Invalid Command"), \ ___C(IDENTIFY, "Identify Command"), \ ___C(RAW, "Raw device command"), \ ___C(GET_SUPPORTED_LOGS, "Get Supported Logs"), \ ___C(GET_FW_INFO, "Get FW Info"), \ ___C(GET_PARTITION_INFO, "Get Partition Information"), \ ___C(GET_LSA, "Get Label Storage Area"), \ ___C(GET_HEALTH_INFO, "Get Health Info"), \ ___C(GET_LOG, "Get Log"), \ ___C(SET_PARTITION_INFO, "Set Partition Information"), \ ___C(SET_LSA, "Set Label Storage Area"), \ ___C(GET_ALERT_CONFIG, "Get Alert Configuration"), \ ___C(SET_ALERT_CONFIG, "Set Alert Configuration"), \ ___C(GET_SHUTDOWN_STATE, "Get Shutdown State"), \ ___C(SET_SHUTDOWN_STATE, "Set Shutdown State"), \ ___DEPRECATED(GET_POISON, "Get Poison List"), \ ___DEPRECATED(INJECT_POISON, "Inject Poison"), \ ___DEPRECATED(CLEAR_POISON, "Clear Poison"), \ ___C(GET_SCAN_MEDIA_CAPS, "Get Scan Media Capabilities"), \ ___DEPRECATED(SCAN_MEDIA, "Scan Media"), \ ___DEPRECATED(GET_SCAN_MEDIA, "Get Scan Media Results"), \ ___C(GET_TIMESTAMP, "Get Timestamp"), \ ___C(GET_LOG_CAPS, "Get Log Capabilities"), \ ___C(CLEAR_LOG, "Clear Log"), \ ___C(GET_SUP_LOG_SUBLIST, "Get Supported Logs Sub-List"), \ ___C(MAX, "invalid / last command") #define ___C(a, b) CXL_MEM_COMMAND_ID_##a #define ___DEPRECATED(a, b) CXL_MEM_DEPRECATED_ID_##a enum { CXL_CMDS }; #undef ___C #undef ___DEPRECATED #define ___C(a, b) { b } #define ___DEPRECATED(a, b) { "Deprecated " b } static const struct { const char *name; } cxl_command_names[] = { CXL_CMDS }; /* * Here's how this actually breaks out: * cxl_command_names[] = { * [CXL_MEM_COMMAND_ID_INVALID] = { "Invalid Command" }, * [CXL_MEM_COMMAND_ID_IDENTIFY] = { "Identify Command" }, * ... * [CXL_MEM_COMMAND_ID_MAX] = { "invalid / last command" }, * }; */ #undef ___C #undef ___DEPRECATED #define ___C(a, b) (0) #define ___DEPRECATED(a, b) (1) static const __u8 cxl_deprecated_commands[] __attribute__((__unused__)) = { CXL_CMDS }; /* * Here's how this actually breaks out: * cxl_deprecated_commands[] = { * [CXL_MEM_COMMAND_ID_INVALID] = 0, * [CXL_MEM_COMMAND_ID_IDENTIFY] = 0, * ... * [CXL_MEM_DEPRECATED_ID_GET_POISON] = 1, * [CXL_MEM_DEPRECATED_ID_INJECT_POISON] = 1, * [CXL_MEM_DEPRECATED_ID_CLEAR_POISON] = 1, * ... * }; */ #undef ___C #undef ___DEPRECATED /** * struct cxl_command_info - Command information returned from a query. * @id: ID number for the command. * @flags: Flags that specify command behavior. * * CXL_MEM_COMMAND_FLAG_USER_ENABLED * * The given command id is supported by the driver and is supported by * a related opcode on the device. * * CXL_MEM_COMMAND_FLAG_EXCLUSIVE * * Requests with the given command id will terminate with EBUSY as the * kernel actively owns management of the given resource. For