Re: [PATCH v2 7/9] ACPI, APEI,CPER: Enhance memory reporting capability

[Mauro Carvalho Chehab]

Em Wed, 16 Oct 2013 10:56:04 -0400
"Chen, Gong" <gong.chen@xxxxxxxxxxxxxxx> escreveu:

> After H/W error happens under FFM enabled mode, lots of information
> are shown but some important parts like DIMM location missed. This
> patch is used to show these extra fileds.
> 
> Original-author: Tony Luck <tony.luck@xxxxxxxxx>
> Signed-off-by: Chen, Gong <gong.chen@xxxxxxxxxxxxxxx>
> Acked-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>

Reviewed-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>

> ---
>  drivers/acpi/apei/cper.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
> index 946ef52..b1a8a55 100644
> --- a/drivers/acpi/apei/cper.c
> +++ b/drivers/acpi/apei/cper.c
> @@ -28,6 +28,7 @@
>  #include <linux/module.h>
>  #include <linux/time.h>
>  #include <linux/cper.h>
> +#include <linux/dmi.h>
>  #include <linux/acpi.h>
>  #include <linux/pci.h>
>  #include <linux/aer.h>
> @@ -210,6 +211,8 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
>  		printk("%s""card: %d\n", pfx, mem->card);
>  	if (mem->validation_bits & CPER_MEM_VALID_MODULE)
>  		printk("%s""module: %d\n", pfx, mem->module);
> +	if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
> +		printk("%s""rank: %d\n", pfx, mem->rank);
>  	if (mem->validation_bits & CPER_MEM_VALID_BANK)
>  		printk("%s""bank: %d\n", pfx, mem->bank);
>  	if (mem->validation_bits & CPER_MEM_VALID_DEVICE)
> @@ -232,6 +235,15 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
>  		       etype < ARRAY_SIZE(cper_mem_err_type_strs) ?
>  		       cper_mem_err_type_strs[etype] : "unknown");
>  	}
> +	if (mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE) {
> +		const char *bank = NULL, *device = NULL;
> +		dmi_memdev_name(mem->mem_dev_handle, &bank, &device);
> +		if (bank != NULL && device != NULL)
> +			printk("%s""DIMM location: %s %s", pfx, bank, device);
> +		else
> +			printk("%s""DIMM DMI handle: 0x%.4x",
> +			       pfx, mem->mem_dev_handle);
> +	}
>  }
>  
>  static const char *cper_pcie_port_type_strs[] = {


-- 

Cheers,
Mauro
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