diff mbox series

[RFC,v2,5/6] cxl: add definition for transaction types

Message ID 20240329063614.362763-6-ruansy.fnst@fujitsu.com
State New, archived
Headers show
Series cxl: add poison event handler | expand

Commit Message

Shiyang Ruan March 29, 2024, 6:36 a.m. UTC 
The transaction types are defined in General Media Event Record/DRAM Event
per CXL rev 3.0 Section 8.2.9.2.1.1; Table 8-43 and
Section 8.2.9.2.1.2; Table 8-44.  Add them for Event Record handler use.

Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
---
 include/linux/cxl-event.h | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

Comments

Dan Williams March 30, 2024, 1:53 a.m. UTC | #1 
Shiyang Ruan wrote:
> The transaction types are defined in General Media Event Record/DRAM Event
> per CXL rev 3.0 Section 8.2.9.2.1.1; Table 8-43 and
> Section 8.2.9.2.1.2; Table 8-44.  Add them for Event Record handler use.

Combine this patch with the one that uses them so that the use case can
be reviewed together with the implementation.
diff mbox series

Patch

diff --git a/include/linux/cxl-event.h b/include/linux/cxl-event.h
index 03fa6d50d46f..0a50754fc330 100644
--- a/include/linux/cxl-event.h
+++ b/include/linux/cxl-event.h
@@ -23,6 +23,19 @@  struct cxl_event_generic {
 	u8 data[CXL_EVENT_RECORD_DATA_LENGTH];
 } __packed;
 
+/*
+ * CXL rev 3.0 Section 8.2.9.2.1.1; Table 8-43
+ */
+enum cxl_event_transaction_type {
+	CXL_EVENT_TRANSACTION_UNKNOWN = 0X00,
+	CXL_EVENT_TRANSACTION_READ,
+	CXL_EVENT_TRANSACTION_WRITE,
+	CXL_EVENT_TRANSACTION_SCAN_MEDIA,
+	CXL_EVENT_TRANSACTION_INJECT_POISON,
+	CXL_EVENT_TRANSACTION_MEDIA_SCRUB,
+	CXL_EVENT_TRANSACTION_MEDIA_MANAGEMENT,
+};
+
 /*
  * General Media Event Record
  * CXL rev 3.0 Section 8.2.9.2.1.1; Table 8-43
@@ -33,7 +46,7 @@  struct cxl_event_gen_media {
 	__le64 phys_addr;
 	u8 descriptor;
 	u8 type;
-	u8 transaction_type;
+	u8 transaction_type;	/* enum cxl_event_transaction_type */
 	u8 validity_flags[2];
 	u8 channel;
 	u8 rank;
@@ -52,7 +65,7 @@  struct cxl_event_dram {
 	__le64 phys_addr;
 	u8 descriptor;
 	u8 type;
-	u8 transaction_type;
+	u8 transaction_type;	/* enum cxl_event_transaction_type */
 	u8 validity_flags[2];
 	u8 channel;
 	u8 rank;