diff mbox series

[v17,07/18] cxl: Add Get Feature command support for user submission

Message ID 20241122180416.1932-8-shiju.jose@huawei.com (mailing list archive)
State New
Headers show
Series EDAC: Scrub: introduce generic EDAC RAS control feature driver + CXL/ACPI-RAS2 drivers | expand

Commit Message

Shiju Jose Nov. 22, 2024, 6:04 p.m. UTC 
From: Dave Jiang <dave.jiang@intel.com>

Add enumeration of Get Feature mailbox command for the kernel to recognize
the command being passed in from user space.

CXL spec r3.1 8.2.9.6.2 Get Feature (Opcode 0501h)

The feature requested is identified by specific UUID.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
---
 drivers/cxl/core/mbox.c      | 1 +
 include/uapi/linux/cxl_mem.h | 1 +
 2 files changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c
index f96648c7a0c6..37764d3d470d 100644
--- a/drivers/cxl/core/mbox.c
+++ b/drivers/cxl/core/mbox.c
@@ -68,6 +68,7 @@  static struct cxl_mem_command cxl_mem_commands[CXL_MEM_COMMAND_ID_MAX] = {
 	CXL_CMD(GET_SCAN_MEDIA_CAPS, 0x10, 0x4, 0),
 	CXL_CMD(GET_TIMESTAMP, 0, 0x8, 0),
 	CXL_CMD(GET_SUPPORTED_FEATURES, 0x8, CXL_VARIABLE_PAYLOAD, 0),
+	CXL_CMD(GET_FEATURE, 0x15, CXL_VARIABLE_PAYLOAD, 0),
 };
 
 /*
diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h
index bd2535962f70..90dcb9723997 100644
--- a/include/uapi/linux/cxl_mem.h
+++ b/include/uapi/linux/cxl_mem.h
@@ -51,6 +51,7 @@ 
 	___C(CLEAR_LOG, "Clear Log"),					  \
 	___C(GET_SUP_LOG_SUBLIST, "Get Supported Logs Sub-List"),	  \
 	___C(GET_SUPPORTED_FEATURES, "Get Supported Features"),		  \
+	___C(GET_FEATURE, "Get Feature"),				  \
 	___C(MAX, "invalid / last command")
 
 #define ___C(a, b) CXL_MEM_COMMAND_ID_##a