diff mbox series

[NDCTL,v3,1/3] ndctl: cxl: Add QoS class retrieval for the root decoder

Message ID 170612968166.2745924.10491030984129768174.stgit@djiang5-mobl3 (mailing list archive)
State Superseded
Headers show
Series ndctl: Add support of qos_class for CXL CLI | expand

Commit Message

Dave Jiang Jan. 24, 2024, 8:54 p.m. UTC 
Add libcxl API to retrieve the QoS class for the root decoder. Also add
support to display the QoS class for the root decoder through the 'cxl
list' command. The qos_class is displayed behind -vvv verbose level.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>

---
v3:
- Rebase to latest pending branch
---
 cxl/filter.h       |    4 ++++
 cxl/json.c         |   10 ++++++++++
 cxl/lib/libcxl.c   |   14 ++++++++++++++
 cxl/lib/libcxl.sym |    1 +
 cxl/lib/private.h  |    1 +
 cxl/libcxl.h       |    3 +++
 cxl/list.c         |    1 +
 util/json.h        |    1 +
 8 files changed, 35 insertions(+)

Comments

Alison Schofield Jan. 26, 2024, 5:45 p.m. UTC | #1 
On Wed, Jan 24, 2024 at 01:54:41PM -0700, Dave Jiang wrote:
> Add libcxl API to retrieve the QoS class for the root decoder. Also add
> support to display the QoS class for the root decoder through the 'cxl
> list' command. The qos_class is displayed behind -vvv verbose level.
> 
> Signed-off-by: Dave Jiang <dave.jiang@intel.com>

Reviewed-by: Alison Schofield <alison.schofield@intel.com>

> 
> ---
> v3:
> - Rebase to latest pending branch
> ---
>  cxl/filter.h       |    4 ++++
>  cxl/json.c         |   10 ++++++++++
>  cxl/lib/libcxl.c   |   14 ++++++++++++++
>  cxl/lib/libcxl.sym |    1 +
>  cxl/lib/private.h  |    1 +
>  cxl/libcxl.h       |    3 +++
>  cxl/list.c         |    1 +
>  util/json.h        |    1 +
>  8 files changed, 35 insertions(+)
> 
> diff --git a/cxl/filter.h b/cxl/filter.h
> index 1241f72ccf62..3c5f9e8a0452 100644
> --- a/cxl/filter.h
> +++ b/cxl/filter.h
> @@ -31,6 +31,7 @@ struct cxl_filter_params {
>  	bool alert_config;
>  	bool dax;
>  	bool poison;
> +	bool qos;
>  	int verbose;
>  	struct log_ctx ctx;
>  };
> @@ -91,6 +92,9 @@ static inline unsigned long cxl_filter_to_flags(struct cxl_filter_params *param)
>  		flags |= UTIL_JSON_DAX | UTIL_JSON_DAX_DEVS;
>  	if (param->poison)
>  		flags |= UTIL_JSON_MEDIA_ERRORS;
> +	if (param->qos)
> +		flags |= UTIL_JSON_QOS_CLASS;
> +
>  	return flags;
>  }
>  
> diff --git a/cxl/json.c b/cxl/json.c
> index 6fb17582a1cb..48a43ddf14b0 100644
> --- a/cxl/json.c
> +++ b/cxl/json.c
> @@ -1062,6 +1062,16 @@ struct json_object *util_cxl_decoder_to_json(struct cxl_decoder *decoder,
>  					       jobj);
>  	}
>  
> +	if ((flags & UTIL_JSON_QOS_CLASS) && cxl_port_is_root(port)) {
> +		int qos_class = cxl_root_decoder_get_qos_class(decoder);
> +
> +		if (qos_class != CXL_QOS_CLASS_NONE) {
> +			jobj = json_object_new_int(qos_class);
> +			if (jobj)
> +				json_object_object_add(jdecoder, "qos_class", jobj);
> +		}
> +	}
> +
>  	json_object_set_userdata(jdecoder, decoder, NULL);
>  	return jdecoder;
>  }
> diff --git a/cxl/lib/libcxl.c b/cxl/lib/libcxl.c
> index 1537a33d370e..9a1ac7001803 100644
> --- a/cxl/lib/libcxl.c
> +++ b/cxl/lib/libcxl.c
> @@ -2229,6 +2229,12 @@ static void *add_cxl_decoder(void *parent, int id, const char *cxldecoder_base)
>  	else
>  		decoder->interleave_ways = strtoul(buf, NULL, 0);
>  
> +	sprintf(path, "%s/qos_class", cxldecoder_base);
> +	if (sysfs_read_attr(ctx, path, buf) < 0)
> +		decoder->qos_class = CXL_QOS_CLASS_NONE;
> +	else
> +		decoder->qos_class = atoi(buf);
> +
>  	switch (port->type) {
>  	case CXL_PORT_ENDPOINT:
>  		sprintf(path, "%s/dpa_resource", cxldecoder_base);
> @@ -2423,6 +2429,14 @@ CXL_EXPORT unsigned long long cxl_decoder_get_size(struct cxl_decoder *decoder)
>  	return decoder->size;
>  }
>  
> +CXL_EXPORT int cxl_root_decoder_get_qos_class(struct cxl_decoder *decoder)
> +{
> +	if (!cxl_port_is_root(decoder->port))
> +		return -EINVAL;
> +
> +	return decoder->qos_class;
> +}
> +
>  CXL_EXPORT unsigned long long
>  cxl_decoder_get_dpa_resource(struct cxl_decoder *decoder)
>  {
> diff --git a/cxl/lib/libcxl.sym b/cxl/lib/libcxl.sym
> index 2149f84d764e..384fea2c25e3 100644
> --- a/cxl/lib/libcxl.sym
> +++ b/cxl/lib/libcxl.sym
> @@ -282,4 +282,5 @@ global:
>  LIBCXL_8 {
>  global:
>  	cxl_memdev_wait_sanitize;
> +	cxl_root_decoder_get_qos_class;
>  } LIBCXL_7;
> diff --git a/cxl/lib/private.h b/cxl/lib/private.h
> index b26a8629e047..4847ff448f71 100644
> --- a/cxl/lib/private.h
> +++ b/cxl/lib/private.h
> @@ -144,6 +144,7 @@ struct cxl_decoder {
>  	struct list_head targets;
>  	struct list_head regions;
>  	struct list_head stale_regions;
> +	int qos_class;
>  };
>  
>  enum cxl_decode_state {
> diff --git a/cxl/libcxl.h b/cxl/libcxl.h
> index 352b3a866f63..e5c08da77f77 100644
> --- a/cxl/libcxl.h
> +++ b/cxl/libcxl.h
> @@ -173,6 +173,8 @@ struct cxl_dport *cxl_port_get_dport_by_memdev(struct cxl_port *port,
>  	for (dport = cxl_dport_get_first(port); dport != NULL;                 \
>  	     dport = cxl_dport_get_next(dport))
>  
> +#define CXL_QOS_CLASS_NONE		-1
> +
>  struct cxl_decoder;
>  struct cxl_decoder *cxl_decoder_get_first(struct cxl_port *port);
>  struct cxl_decoder *cxl_decoder_get_next(struct cxl_decoder *decoder);
> @@ -184,6 +186,7 @@ unsigned long long cxl_decoder_get_dpa_resource(struct cxl_decoder *decoder);
>  unsigned long long cxl_decoder_get_dpa_size(struct cxl_decoder *decoder);
>  unsigned long long
>  cxl_decoder_get_max_available_extent(struct cxl_decoder *decoder);
> +int cxl_root_decoder_get_qos_class(struct cxl_decoder *decoder);
>  
>  enum cxl_decoder_mode {
>  	CXL_DECODER_MODE_NONE,
> diff --git a/cxl/list.c b/cxl/list.c
> index 13fef8569340..f6446f98c2bd 100644
> --- a/cxl/list.c
> +++ b/cxl/list.c
> @@ -123,6 +123,7 @@ int cmd_list(int argc, const char **argv, struct cxl_ctx *ctx)
>  		param.fw = true;
>  		param.alert_config = true;
>  		param.dax = true;
> +		param.qos = true;
>  		/* fallthrough */
>  	case 2:
>  		param.idle = true;
> diff --git a/util/json.h b/util/json.h
> index ea370df4d1b7..b07055005084 100644
> --- a/util/json.h
> +++ b/util/json.h
> @@ -21,6 +21,7 @@ enum util_json_flags {
>  	UTIL_JSON_TARGETS	= (1 << 11),
>  	UTIL_JSON_PARTITION	= (1 << 12),
>  	UTIL_JSON_ALERT_CONFIG	= (1 << 13),
> +	UTIL_JSON_QOS_CLASS	= (1 << 14),
>  };
>  
>  void util_display_json_array(FILE *f_out, struct json_object *jarray,
> 
> 
>
diff mbox series

Patch

diff --git a/cxl/filter.h b/cxl/filter.h
index 1241f72ccf62..3c5f9e8a0452 100644
--- a/cxl/filter.h
+++ b/cxl/filter.h
@@ -31,6 +31,7 @@  struct cxl_filter_params {
 	bool alert_config;
 	bool dax;
 	bool poison;
+	bool qos;
 	int verbose;
 	struct log_ctx ctx;
 };
@@ -91,6 +92,9 @@  static inline unsigned long cxl_filter_to_flags(struct cxl_filter_params *param)
 		flags |= UTIL_JSON_DAX | UTIL_JSON_DAX_DEVS;
 	if (param->poison)
 		flags |= UTIL_JSON_MEDIA_ERRORS;
+	if (param->qos)
+		flags |= UTIL_JSON_QOS_CLASS;
+
 	return flags;
 }
 
diff --git a/cxl/json.c b/cxl/json.c
index 6fb17582a1cb..48a43ddf14b0 100644
--- a/cxl/json.c
+++ b/cxl/json.c
@@ -1062,6 +1062,16 @@  struct json_object *util_cxl_decoder_to_json(struct cxl_decoder *decoder,
 					       jobj);
 	}
 
+	if ((flags & UTIL_JSON_QOS_CLASS) && cxl_port_is_root(port)) {
+		int qos_class = cxl_root_decoder_get_qos_class(decoder);
+
+		if (qos_class != CXL_QOS_CLASS_NONE) {
+			jobj = json_object_new_int(qos_class);
+			if (jobj)
+				json_object_object_add(jdecoder, "qos_class", jobj);
+		}
+	}
+
 	json_object_set_userdata(jdecoder, decoder, NULL);
 	return jdecoder;
 }
diff --git a/cxl/lib/libcxl.c b/cxl/lib/libcxl.c
index 1537a33d370e..9a1ac7001803 100644
--- a/cxl/lib/libcxl.c
+++ b/cxl/lib/libcxl.c
@@ -2229,6 +2229,12 @@  static void *add_cxl_decoder(void *parent, int id, const char *cxldecoder_base)
 	else
 		decoder->interleave_ways = strtoul(buf, NULL, 0);
 
+	sprintf(path, "%s/qos_class", cxldecoder_base);
+	if (sysfs_read_attr(ctx, path, buf) < 0)
+		decoder->qos_class = CXL_QOS_CLASS_NONE;
+	else
+		decoder->qos_class = atoi(buf);
+
 	switch (port->type) {
 	case CXL_PORT_ENDPOINT:
 		sprintf(path, "%s/dpa_resource", cxldecoder_base);
@@ -2423,6 +2429,14 @@  CXL_EXPORT unsigned long long cxl_decoder_get_size(struct cxl_decoder *decoder)
 	return decoder->size;
 }
 
+CXL_EXPORT int cxl_root_decoder_get_qos_class(struct cxl_decoder *decoder)
+{
+	if (!cxl_port_is_root(decoder->port))
+		return -EINVAL;
+
+	return decoder->qos_class;
+}
+
 CXL_EXPORT unsigned long long
 cxl_decoder_get_dpa_resource(struct cxl_decoder *decoder)
 {
diff --git a/cxl/lib/libcxl.sym b/cxl/lib/libcxl.sym
index 2149f84d764e..384fea2c25e3 100644
--- a/cxl/lib/libcxl.sym
+++ b/cxl/lib/libcxl.sym
@@ -282,4 +282,5 @@  global:
 LIBCXL_8 {
 global:
 	cxl_memdev_wait_sanitize;
+	cxl_root_decoder_get_qos_class;
 } LIBCXL_7;
diff --git a/cxl/lib/private.h b/cxl/lib/private.h
index b26a8629e047..4847ff448f71 100644
--- a/cxl/lib/private.h
+++ b/cxl/lib/private.h
@@ -144,6 +144,7 @@  struct cxl_decoder {
 	struct list_head targets;
 	struct list_head regions;
 	struct list_head stale_regions;
+	int qos_class;
 };
 
 enum cxl_decode_state {
diff --git a/cxl/libcxl.h b/cxl/libcxl.h
index 352b3a866f63..e5c08da77f77 100644
--- a/cxl/libcxl.h
+++ b/cxl/libcxl.h
@@ -173,6 +173,8 @@  struct cxl_dport *cxl_port_get_dport_by_memdev(struct cxl_port *port,
 	for (dport = cxl_dport_get_first(port); dport != NULL;                 \
 	     dport = cxl_dport_get_next(dport))
 
+#define CXL_QOS_CLASS_NONE		-1
+
 struct cxl_decoder;
 struct cxl_decoder *cxl_decoder_get_first(struct cxl_port *port);
 struct cxl_decoder *cxl_decoder_get_next(struct cxl_decoder *decoder);
@@ -184,6 +186,7 @@  unsigned long long cxl_decoder_get_dpa_resource(struct cxl_decoder *decoder);
 unsigned long long cxl_decoder_get_dpa_size(struct cxl_decoder *decoder);
 unsigned long long
 cxl_decoder_get_max_available_extent(struct cxl_decoder *decoder);
+int cxl_root_decoder_get_qos_class(struct cxl_decoder *decoder);
 
 enum cxl_decoder_mode {
 	CXL_DECODER_MODE_NONE,
diff --git a/cxl/list.c b/cxl/list.c
index 13fef8569340..f6446f98c2bd 100644
--- a/cxl/list.c
+++ b/cxl/list.c
@@ -123,6 +123,7 @@  int cmd_list(int argc, const char **argv, struct cxl_ctx *ctx)
 		param.fw = true;
 		param.alert_config = true;
 		param.dax = true;
+		param.qos = true;
 		/* fallthrough */
 	case 2:
 		param.idle = true;
diff --git a/util/json.h b/util/json.h
index ea370df4d1b7..b07055005084 100644
--- a/util/json.h
+++ b/util/json.h
@@ -21,6 +21,7 @@  enum util_json_flags {
 	UTIL_JSON_TARGETS	= (1 << 11),
 	UTIL_JSON_PARTITION	= (1 << 12),
 	UTIL_JSON_ALERT_CONFIG	= (1 << 13),
+	UTIL_JSON_QOS_CLASS	= (1 << 14),
 };
 
 void util_display_json_array(FILE *f_out, struct json_object *jarray,