cxl/mem: Add set of informational commands

Add initial set of formal commands beyond basic identify and command
enumeration.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> (v2)
Link: https://lore.kernel.org/r/20210217040958.1354670-8-ben.widawsky@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c
index e31b304..6d7d387 100644 (file)
--- a/drivers/cxl/mem.c
+++ b/drivers/cxl/mem.c
@@ -45,12 +45,16 @@
 enum opcode {
        CXL_MBOX_OP_INVALID             = 0x0000,
        CXL_MBOX_OP_RAW                 = CXL_MBOX_OP_INVALID,
+       CXL_MBOX_OP_GET_FW_INFO         = 0x0200,
        CXL_MBOX_OP_ACTIVATE_FW         = 0x0202,
        CXL_MBOX_OP_GET_SUPPORTED_LOGS  = 0x0400,
        CXL_MBOX_OP_GET_LOG             = 0x0401,
        CXL_MBOX_OP_IDENTIFY            = 0x4000,
+       CXL_MBOX_OP_GET_PARTITION_INFO  = 0x4100,
        CXL_MBOX_OP_SET_PARTITION_INFO  = 0x4101,
+       CXL_MBOX_OP_GET_LSA             = 0x4102,
        CXL_MBOX_OP_SET_LSA             = 0x4103,
+       CXL_MBOX_OP_GET_HEALTH_INFO     = 0x4200,
        CXL_MBOX_OP_SET_SHUTDOWN_STATE  = 0x4204,
        CXL_MBOX_OP_SCAN_MEDIA          = 0x4304,
        CXL_MBOX_OP_GET_SCAN_MEDIA      = 0x4305,
@@ -171,6 +175,11 @@ static struct cxl_mem_command mem_commands[] = {
        CXL_CMD(RAW, ~0, ~0, 0),
 #endif
        CXL_CMD(GET_SUPPORTED_LOGS, 0, ~0, CXL_CMD_FLAG_FORCE_ENABLE),
+       CXL_CMD(GET_FW_INFO, 0, 0x50, 0),
+       CXL_CMD(GET_PARTITION_INFO, 0, 0x20, 0),
+       CXL_CMD(GET_LSA, 0x8, ~0, 0),
+       CXL_CMD(GET_HEALTH_INFO, 0, 0x12, 0),
+       CXL_CMD(GET_LOG, 0x18, ~0, CXL_CMD_FLAG_FORCE_ENABLE),
 };
 
 /*

diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h
index 59227f8..3155382 100644 (file)
--- a/include/uapi/linux/cxl_mem.h
+++ b/include/uapi/linux/cxl_mem.h
@@ -24,6 +24,11 @@
        ___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(MAX, "invalid / last command")
 
 #define ___C(a, b) CXL_MEM_COMMAND_ID_##a