linux-kernel - [PATCH v2 2/6] cxl/events: Add Component Identifier formatting for CXL spec rev 3.1

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Message-ID: <20241022105849.1272-3-shiju.jose@huawei.com>
Date: Tue, 22 Oct 2024 11:58:45 +0100
From: <shiju.jose@...wei.com>
To: <dave.jiang@...el.com>, <dan.j.williams@...el.com>,
	<jonathan.cameron@...wei.com>, <alison.schofield@...el.com>,
	<vishal.l.verma@...el.com>, <ira.weiny@...el.com>, <dave@...olabs.net>,
	<linux-cxl@...r.kernel.org>
CC: <linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
	<tanxiaofei@...wei.com>, <prime.zeng@...ilicon.com>, <shiju.jose@...wei.com>
Subject: [PATCH v2 2/6] cxl/events: Add Component Identifier formatting for CXL spec rev 3.1

From: Shiju Jose <shiju.jose@...wei.com>

Add Component Identifier formatting for CXL spec rev 3.1, Section
8.2.9.2.1, Table 8-44.

Signed-off-by: Shiju Jose <shiju.jose@...wei.com>
---
 drivers/cxl/core/trace.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h
index 7305974e2301..81908072c6f3 100644
--- a/drivers/cxl/core/trace.h
+++ b/drivers/cxl/core/trace.h
@@ -268,6 +268,26 @@ TRACE_EVENT(cxl_generic_event,
 	{ CXL_DPA_NOT_REPAIRABLE,		"NOT_REPAIRABLE"	}  \
 )
 
+/*
+ * Component ID Format
+ * CXL 3.1 section 8.2.9.2.1; Table 8-44
+ */
+#define CXL_PLDM_COMPONENT_ID_ENTITY_VALID	BIT(0)
+#define CXL_PLDM_COMPONENT_ID_RES_VALID		BIT(1)
+
+#define comp_id_pldm_flags(flags)  __print_flags(flags, " | ",			\
+	{ CXL_PLDM_COMPONENT_ID_ENTITY_VALID,   "PLDM_Entity_ID[5:0] " },	\
+	{ CXL_PLDM_COMPONENT_ID_RES_VALID,      "Resource_ID[9:6] " }		\
+)
+
+#define cxl_print_component_id(flags, valid_comp_id, valid_id_format, comp_id)			\
+	(flags & valid_comp_id && flags & valid_id_format) ?					\
+	(comp_id[0] & (CXL_PLDM_COMPONENT_ID_ENTITY_VALID | CXL_PLDM_COMPONENT_ID_RES_VALID)) ?	\
+	__print_hex(&comp_id[1], 10) : (comp_id[0] & CXL_PLDM_COMPONENT_ID_ENTITY_VALID) ?	\
+	__print_hex(&comp_id[1], 6) : (comp_id[0] & CXL_PLDM_COMPONENT_ID_RES_VALID) ?		\
+	__print_hex(&comp_id[7], 4) : __print_hex(comp_id, CXL_EVENT_GEN_MED_COMP_ID_SIZE) :	\
+	__print_hex(comp_id, CXL_EVENT_GEN_MED_COMP_ID_SIZE)
+
 /*
  * General Media Event Record - GMER
  * CXL rev 3.0 Section 8.2.9.2.1.1; Table 8-43
-- 
2.34.1