diff options
Diffstat (limited to 'drivers/cxl/cxlmem.h')
| -rw-r--r-- | drivers/cxl/cxlmem.h | 47 |
1 files changed, 7 insertions, 40 deletions
diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index 2a25d1957ddb..dd2b7060d501 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -106,42 +106,6 @@ static inline struct cxl_ep *cxl_ep_load(struct cxl_port *port, return xa_load(&port->endpoints, (unsigned long)&cxlmd->dev); } -/** - * struct cxl_mbox_cmd - A command to be submitted to hardware. - * @opcode: (input) The command set and command submitted to hardware. - * @payload_in: (input) Pointer to the input payload. - * @payload_out: (output) Pointer to the output payload. Must be allocated by - * the caller. - * @size_in: (input) Number of bytes to load from @payload_in. - * @size_out: (input) Max number of bytes loaded into @payload_out. - * (output) Number of bytes generated by the device. For fixed size - * outputs commands this is always expected to be deterministic. For - * variable sized output commands, it tells the exact number of bytes - * written. - * @min_out: (input) internal command output payload size validation - * @poll_count: (input) Number of timeouts to attempt. - * @poll_interval_ms: (input) Time between mailbox background command polling - * interval timeouts. - * @return_code: (output) Error code returned from hardware. - * - * This is the primary mechanism used to send commands to the hardware. - * All the fields except @payload_* correspond exactly to the fields described in - * Command Register section of the CXL 2.0 8.2.8.4.5. @payload_in and - * @payload_out are written to, and read from the Command Payload Registers - * defined in CXL 2.0 8.2.8.4.8. - */ -struct cxl_mbox_cmd { - u16 opcode; - void *payload_in; - void *payload_out; - size_t size_in; - size_t size_out; - size_t min_out; - int poll_count; - int poll_interval_ms; - u16 return_code; -}; - /* * Per CXL 3.0 Section 8.2.8.4.5.1 */ @@ -428,6 +392,7 @@ struct cxl_dpa_perf { * @serial: PCIe Device Serial Number * @type: Generic Memory Class device or Vendor Specific Memory device * @cxl_mbox: CXL mailbox context + * @cxlfs: CXL features context */ struct cxl_dev_state { struct device *dev; @@ -443,6 +408,9 @@ struct cxl_dev_state { u64 serial; enum cxl_devtype type; struct cxl_mailbox cxl_mbox; +#ifdef CONFIG_CXL_FEATURES + struct cxl_features_state *cxlfs; +#endif }; static inline struct cxl_dev_state *mbox_to_cxlds(struct cxl_mailbox *cxl_mbox) @@ -461,8 +429,6 @@ static inline struct cxl_dev_state *mbox_to_cxlds(struct cxl_mailbox *cxl_mbox) * @lsa_size: Size of Label Storage Area * (CXL 2.0 8.2.9.5.1.1 Identify Memory Device) * @firmware_version: Firmware version for the memory device. - * @enabled_cmds: Hardware commands found enabled in CEL. - * @exclusive_cmds: Commands that are kernel-internal only * @total_bytes: sum of all possible capacities * @volatile_only_bytes: hard volatile capacity * @persistent_only_bytes: hard persistent capacity @@ -485,8 +451,6 @@ struct cxl_memdev_state { struct cxl_dev_state cxlds; size_t lsa_size; char firmware_version[0x10]; - DECLARE_BITMAP(enabled_cmds, CXL_MEM_COMMAND_ID_MAX); - DECLARE_BITMAP(exclusive_cmds, CXL_MEM_COMMAND_ID_MAX); u64 total_bytes; u64 volatile_only_bytes; u64 persistent_only_bytes; @@ -530,6 +494,9 @@ enum cxl_opcode { CXL_MBOX_OP_GET_LOG_CAPS = 0x0402, CXL_MBOX_OP_CLEAR_LOG = 0x0403, CXL_MBOX_OP_GET_SUP_LOG_SUBLIST = 0x0405, + CXL_MBOX_OP_GET_SUPPORTED_FEATURES = 0x0500, + CXL_MBOX_OP_GET_FEATURE = 0x0501, + CXL_MBOX_OP_SET_FEATURE = 0x0502, CXL_MBOX_OP_IDENTIFY = 0x4000, CXL_MBOX_OP_GET_PARTITION_INFO = 0x4100, CXL_MBOX_OP_SET_PARTITION_INFO = 0x4101, |