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Subject[PATCH v2 8/9] ACPI, APEI, CPER: Cleanup CPER memory error output format
Date
Keep up only the most important fields for memory error
reporting. The detail information will be moved to perf/trace
interface.

Suggested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
---
drivers/acpi/apei/cper.c | 69 +++++++++++++++++++++++-------------------------
1 file changed, 33 insertions(+), 36 deletions(-)

diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index b1a8a55..f5bc227 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -33,6 +33,9 @@
#include <linux/pci.h>
#include <linux/aer.h>

+#define INDENT_SP " "
+#define HW_CE_INFO \
+ "Above error has been corrected by h/w and no further action required"
/*
* CPER record ID need to be unique even after reboot, because record
* ID is used as index for ERST storage, while CPER records from
@@ -206,29 +209,29 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
printk("%s""physical_address_mask: 0x%016llx\n",
pfx, mem->physical_addr_mask);
if (mem->validation_bits & CPER_MEM_VALID_NODE)
- printk("%s""node: %d\n", pfx, mem->node);
+ pr_debug("node: %d\n", mem->node);
if (mem->validation_bits & CPER_MEM_VALID_CARD)
- printk("%s""card: %d\n", pfx, mem->card);
+ pr_debug("card: %d\n", mem->card);
if (mem->validation_bits & CPER_MEM_VALID_MODULE)
- printk("%s""module: %d\n", pfx, mem->module);
+ pr_debug("module: %d\n", mem->module);
if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
- printk("%s""rank: %d\n", pfx, mem->rank);
+ pr_debug("rank: %d\n", mem->rank);
if (mem->validation_bits & CPER_MEM_VALID_BANK)
- printk("%s""bank: %d\n", pfx, mem->bank);
+ pr_debug("bank: %d\n", mem->bank);
if (mem->validation_bits & CPER_MEM_VALID_DEVICE)
- printk("%s""device: %d\n", pfx, mem->device);
+ pr_debug("device: %d\n", mem->device);
if (mem->validation_bits & CPER_MEM_VALID_ROW)
- printk("%s""row: %d\n", pfx, mem->row);
+ pr_debug("row: %d\n", mem->row);
if (mem->validation_bits & CPER_MEM_VALID_COLUMN)
- printk("%s""column: %d\n", pfx, mem->column);
+ pr_debug("column: %d\n", mem->column);
if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION)
- printk("%s""bit_position: %d\n", pfx, mem->bit_pos);
+ pr_debug("bit_position: %d\n", mem->bit_pos);
if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID)
- printk("%s""requestor_id: 0x%016llx\n", pfx, mem->requestor_id);
+ pr_debug("requestor_id: 0x%016llx\n", mem->requestor_id);
if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID)
- printk("%s""responder_id: 0x%016llx\n", pfx, mem->responder_id);
+ pr_debug("responder_id: 0x%016llx\n", mem->responder_id);
if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID)
- printk("%s""target_id: 0x%016llx\n", pfx, mem->target_id);
+ pr_debug("target_id: 0x%016llx\n", mem->target_id);
if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) {
u8 etype = mem->error_type;
printk("%s""error_type: %d, %s\n", pfx, etype,
@@ -296,55 +299,45 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
pfx, pcie->bridge.secondary_status, pcie->bridge.control);
}

-static const char * const cper_estatus_section_flag_strs[] = {
- "primary",
- "containment warning",
- "reset",
- "error threshold exceeded",
- "resource not accessible",
- "latent error",
-};
-
static void cper_estatus_print_section(
const char *pfx, const struct acpi_generic_data *gdata, int sec_no)
{
uuid_le *sec_type = (uuid_le *)gdata->section_type;
__u16 severity;
+ char newpfx[64];

severity = gdata->error_severity;
- printk("%s""section: %d, severity: %d, %s\n", pfx, sec_no, severity,
+ printk("%s""Error %d, type: %s\n", pfx, sec_no,
cper_severity_str(severity));
- printk("%s""flags: 0x%02x\n", pfx, gdata->flags);
- cper_print_bits(pfx, gdata->flags, cper_estatus_section_flag_strs,
- ARRAY_SIZE(cper_estatus_section_flag_strs));
if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
printk("%s""fru_id: %pUl\n", pfx, (uuid_le *)gdata->fru_id);
if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text);

+ snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) {
struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1);
- printk("%s""section_type: general processor error\n", pfx);
+ printk("%s""section_type: general processor error\n", newpfx);
if (gdata->error_data_length >= sizeof(*proc_err))
- cper_print_proc_generic(pfx, proc_err);
+ cper_print_proc_generic(newpfx, proc_err);
else
goto err_section_too_small;
} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
struct cper_sec_mem_err *mem_err = (void *)(gdata + 1);
- printk("%s""section_type: memory error\n", pfx);
+ printk("%s""section_type: memory error\n", newpfx);
if (gdata->error_data_length >= sizeof(*mem_err))
- cper_print_mem(pfx, mem_err);
+ cper_print_mem(newpfx, mem_err);
else
goto err_section_too_small;
} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) {
struct cper_sec_pcie *pcie = (void *)(gdata + 1);
- printk("%s""section_type: PCIe error\n", pfx);
+ printk("%s""section_type: PCIe error\n", newpfx);
if (gdata->error_data_length >= sizeof(*pcie))
- cper_print_pcie(pfx, pcie, gdata);
+ cper_print_pcie(newpfx, pcie, gdata);
else
goto err_section_too_small;
} else
- printk("%s""section type: unknown, %pUl\n", pfx, sec_type);
+ printk("%s""section type: unknown, %pUl\n", newpfx, sec_type);

return;

@@ -358,21 +351,25 @@ void cper_estatus_print(const char *pfx,
struct acpi_generic_data *gdata;
unsigned int data_len, gedata_len;
int sec_no = 0;
+ char newpfx[64];
__u16 severity;

- printk("%s""Generic Hardware Error Status\n", pfx);
severity = estatus->error_severity;
- printk("%s""severity: %d, %s\n", pfx, severity,
- cper_severity_str(severity));
+ printk("%s""event severity: %s\n", pfx, cper_severity_str(severity));
data_len = estatus->data_length;
gdata = (struct acpi_generic_data *)(estatus + 1);
+ snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
while (data_len >= sizeof(*gdata)) {
gedata_len = gdata->error_data_length;
- cper_estatus_print_section(pfx, gdata, sec_no);
+ cper_estatus_print_section(newpfx, gdata, sec_no);
data_len -= gedata_len + sizeof(*gdata);
gdata = (void *)(gdata + 1) + gedata_len;
sec_no++;
}
+ if (severity != CPER_SEV_FATAL)
+ printk("%s%s\n", pfx,
+ "Above error has been corrected by h/w "
+ "and require no further action");
}
EXPORT_SYMBOL_GPL(cper_estatus_print);

--
1.8.4.rc3


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