ACK: [PATCH] opal: mem_info check for dimm presence in property

[Colin Ian King]

On 10/03/17 00:29, Deb McLemore wrote:
> This patch checks if the device tree node for the dimm has a
> status of okay which indicates the dimm slot is populated.
> 
> If the dimm is populated and status is okay then further properties
> will be queried and verified.
> 
> Signed-off-by: Deb McLemore <debmc at linux.vnet.ibm.com>
> ---
>  src/lib/include/fwts_devicetree.h |  5 ++++
>  src/lib/src/fwts_devicetree.c     | 30 ++++++++++++++++++++
>  src/opal/mem_info.c               | 59 +++++++++++++++++++++++++++------------
>  3 files changed, 76 insertions(+), 18 deletions(-)
> 
> diff --git a/src/lib/include/fwts_devicetree.h b/src/lib/include/fwts_devicetree.h
> index b2669c5..372bdda 100644
> --- a/src/lib/include/fwts_devicetree.h
> +++ b/src/lib/include/fwts_devicetree.h
> @@ -51,6 +51,11 @@ static inline int fwts_devicetree_read(fwts_framework *fwts
>  }
>  #endif
>  
> +bool check_status_property_okay(fwts_framework *fw,
> +				const char *my_path,
> +				const char *my_prop_string,
> +				const char *property);
> +
>  int check_property_printable(fwts_framework *fw,
>  			const char *name,
>  			const char *buf,
> diff --git a/src/lib/src/fwts_devicetree.c b/src/lib/src/fwts_devicetree.c
> index 923f8fe..bf5686a 100644
> --- a/src/lib/src/fwts_devicetree.c
> +++ b/src/lib/src/fwts_devicetree.c
> @@ -24,6 +24,8 @@
>  
>  #include "fwts.h"
>  
> +#include <libfdt.h>
> +
>  int fwts_devicetree_read(fwts_framework *fwts)
>  {
>  	char *command, *data = NULL;
> @@ -64,6 +66,34 @@ int fwts_devicetree_read(fwts_framework *fwts)
>  	return FWTS_OK;
>  }
>  
> +bool check_status_property_okay(fwts_framework *fw,
> +	const char *my_path,
> +	const char *my_prop_string,
> +	const char *property)
> +{
> +	char *prop_string = strstr(my_path, my_prop_string);
> +
> +	if (prop_string) {
> +		int prop_len;
> +		int node = fdt_path_offset(fw->fdt, prop_string);
> +
> +		if (node >= 0) {
> +			const char *prop_buf;
> +
> +			prop_buf = fdt_getprop(fw->fdt, node,
> +					property,
> +					&prop_len);
> +			if (prop_len > 0) {
> +				if ((!strcmp(prop_buf, "okay")) ||
> +					(!strcmp(prop_buf, "ok"))) {
> +					return true;
> +				}
> +			}
> +		}
> +	}
> +	return false;
> +}
> +
>  int check_property_printable(fwts_framework *fw,
>  	const char *name,
>  	const char *buf,
> diff --git a/src/opal/mem_info.c b/src/opal/mem_info.c
> index 7bda7bc..2024080 100644
> --- a/src/opal/mem_info.c
> +++ b/src/opal/mem_info.c
> @@ -27,6 +27,8 @@
>  
>  #include <libfdt.h>
>  
> +bool found_dimm = false;
> +
>  static int get_dimm_property(fwts_framework *fw,
>  			char *my_path,
>  			bool hex,
> @@ -185,30 +187,39 @@ static int process_dimm(fwts_framework *fw,
>  				free(namelist[i]);
>  				continue;
>  			}
> -			if (get_dimm_property(fw, my_path, false,
> -						DT_PROPERTY_OPAL_SLOT_LOC)) {
> -				failures ++;
> -			}
>  
> -			if (get_dimm_property(fw, my_path, false,
> -						DT_PROPERTY_OPAL_PART_NUM)) {
> -				failures ++;
> -			}
> +			char my_prop_string[15];
> +			strcpy(my_prop_string, "/memory-buffer");
> +			if (check_status_property_okay(fw, my_path,
> +						my_prop_string,
> +						DT_PROPERTY_OPAL_STATUS)) {
> +				found_dimm = true;
> +				if (get_dimm_property(fw, my_path, false,
> +					DT_PROPERTY_OPAL_STATUS)) {
> +					failures ++;
> +				}
>  
> -			if (get_dimm_property(fw, my_path, false,
> -						DT_PROPERTY_OPAL_SERIAL_NUM)) {
> -				failures ++;
> -			}
> +				if (get_dimm_property(fw, my_path, false,
> +					DT_PROPERTY_OPAL_SLOT_LOC)) {
> +					failures ++;
> +				}
>  
> -			if (get_dimm_property(fw, my_path, true,
> +				if (get_dimm_property(fw, my_path, false,
> +					DT_PROPERTY_OPAL_PART_NUM)) {
> +					failures ++;
> +				}
> +
> +				if (get_dimm_property(fw, my_path, false,
> +					DT_PROPERTY_OPAL_SERIAL_NUM)) {
> +					failures ++;
> +				}
> +
> +				if (get_dimm_property(fw, my_path, true,
>  					DT_PROPERTY_OPAL_MANUFACTURER_ID)) {
> -				failures ++;
> +					failures ++;
> +				}
>  			}
>  
> -			if (get_dimm_property(fw, my_path, false,
> -						DT_PROPERTY_OPAL_STATUS)) {
> -				failures ++;
> -			}
>  			free(my_buffer);
>  			free(namelist[i]);
>  		}
> @@ -401,6 +412,18 @@ static int get_linux_mem_devices(fwts_framework *fw)
>  				DT_FS_PATH);
>  	}
>  
> +	if (!found_dimm) {
> +		failures ++;
> +		fwts_log_nl(fw);
> +		fwts_failed(fw, LOG_LEVEL_CRITICAL,
> +				"OPAL MEM Info",
> +				"No MEM DIMM devices (memory-buffer) were found"
> +				" in \"%s\" with a status of \"okay\" or \"ok\"."
> +				"  This is unexpected so please check your"
> +				" system setup for issues.",
> +				DT_FS_PATH);
> +	}
> +
>  	if (failures) {
>  		return FWTS_ERROR;
>  	} else {
> 
Thanks!

Acked-by: Colin Ian King <colin.king at canonical.com>