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Message-ID: <20240617200411.1426554-7-terry.bowman@amd.com>
Date: Mon, 17 Jun 2024 15:04:08 -0500
From: Terry Bowman <terry.bowman@....com>
To: <dan.j.williams@...el.com>, <ira.weiny@...el.com>, <dave@...olabs.net>,
	<dave.jiang@...el.com>, <alison.schofield@...el.com>, <ming4.li@...el.com>,
	<vishal.l.verma@...el.com>, <jim.harris@...sung.com>,
	<ilpo.jarvinen@...ux.intel.com>, <ardb@...nel.org>,
	<sathyanarayanan.kuppuswamy@...ux.intel.com>, <linux-cxl@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <terry.bowman@....com>,
	<Yazen.Ghannam@....com>, <Robert.Richter@....com>
Subject: [RFC PATCH 6/9] cxl/pci: Add trace logging for CXL PCIe port RAS errors

The cxl_pci driver uses kernel trace functions to log RAS errors for
endpoints and RCH downstream ports. The same is needed for CXL root ports,
CXL downstream switch ports, and CXL upstream switch ports.

Add RAS correctable and RAS uncorrectable trace logging functions for
CXL PCIE ports.

Signed-off-by: Terry Bowman <terry.bowman@....com>
---
 drivers/cxl/core/trace.h | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h
index e5f13260fc52..5cfd9952d88a 100644
--- a/drivers/cxl/core/trace.h
+++ b/drivers/cxl/core/trace.h
@@ -48,6 +48,23 @@
 	{ CXL_RAS_UC_IDE_RX_ERR, "IDE Rx Error" }			  \
 )
 
+TRACE_EVENT(cxl_port_aer_uncorrectable_error,
+	TP_PROTO(struct device *dev, u32 status),
+	TP_ARGS(dev, status),
+	TP_STRUCT__entry(
+		__string(devname, dev_name(dev))
+		__field(u32, status)
+	),
+	TP_fast_assign(
+		__assign_str(devname, dev_name(dev));
+		__entry->status = status;
+	),
+	TP_printk("device=%s status='%s'",
+		  __get_str(devname),
+		  show_uc_errs(__entry->status)
+	)
+);
+
 TRACE_EVENT(cxl_aer_uncorrectable_error,
 	TP_PROTO(const struct cxl_memdev *cxlmd, u32 status, u32 fe, u32 *hl),
 	TP_ARGS(cxlmd, status, fe, hl),
@@ -96,6 +113,23 @@ TRACE_EVENT(cxl_aer_uncorrectable_error,
 	{ CXL_RAS_CE_PHYS_LAYER_ERR, "Received Error From Physical Layer" }	\
 )
 
+TRACE_EVENT(cxl_port_aer_correctable_error,
+	TP_PROTO(struct device *dev, u32 status),
+	TP_ARGS(dev, status),
+	TP_STRUCT__entry(
+		__string(devname, dev_name(dev))
+		__field(u32, status)
+	),
+	TP_fast_assign(
+		__assign_str(devname, dev_name(dev));
+		__entry->status = status;
+	),
+	TP_printk("device=%s status='%s'",
+		  __get_str(devname),
+		  show_ce_errs(__entry->status)
+	)
+);
+
 TRACE_EVENT(cxl_aer_correctable_error,
 	TP_PROTO(const struct cxl_memdev *cxlmd, u32 status),
 	TP_ARGS(cxlmd, status),
-- 
2.34.1


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