diff mbox series

[v3] rte_metrics: unconditionally exports rte_metrics_tel_xxx functions

Message ID 1614192383-20597-1-git-send-email-jizh@linux.microsoft.com (mailing list archive)
State Accepted
Delegated to: Thomas Monjalon
Headers show
Series [v3] rte_metrics: unconditionally exports rte_metrics_tel_xxx functions | expand

Checks

Context Check Description
ci/iol-mellanox-Functional success Functional Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional fail Functional Testing issues
ci/iol-testing success Testing PASS
ci/iol-abi-testing success Testing PASS
ci/github-robot success github build: passed
ci/travis-robot fail travis build: failed
ci/intel-Testing success Testing PASS
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Jie Zhou Feb. 24, 2021, 6:46 p.m. UTC
From: Jie Zhou <jizh@microsoft.com>

This patch allows the same set of rte_metrics_tel_* functions to be
exported no matter JANSSON is available or not, by doing following:
1.	Leverage dpdk_conf to set configuration flag RTE_HAVE_JANSSON
when Jansson dependency is found.
2.	In rte_metrics_telemetry.c, leverage RTE_HAVE_JANSSON to handle the
case when JANSSON is not available by adding stubs for all the instances.
3.	In meson.build, per dpdk\doc\guides\rel_notes\release_20_05.rst,
it is claimed that "Telemetry library is no longer dependent on the
external Jansson library, which allows Telemetry be enabled by default.",
thus make the deps and includes of Telemetry as not conditional anymore.

V2 changes:
    Address comments from Dmitry Kozlyuk <dmitry.kozliuk@gmail.com> and
    Bruce Richardson <bruce.richardson@intel.com>:
        - Set dpdk.conf RTE_HAS_JANSSON in metrics meson.build
        - Reduce #ifdef RTE_HAS_JANSSON blocks

V3 changes:
    Address comment from Bruce Richardson <bruce.richardson@intel.com>:
        - Remove redundant includes line on librte_telemetry

Signed-off-by: Jie Zhou <jizh@microsoft.com>
Signed-off-by: Jie Zhou <jizh@linux.microsoft.com>
---
 lib/librte_metrics/meson.build             | 11 ++--
 lib/librte_metrics/rte_metrics_telemetry.c | 60 +++++++++++++++++++++-
 lib/librte_metrics/rte_metrics_telemetry.h |  2 +-
 3 files changed, 64 insertions(+), 9 deletions(-)

Comments

Dmitry Kozlyuk March 6, 2021, 8:18 p.m. UTC | #1
2021-02-24 10:46 (UTC-0800), Jie Zhou:
[...]
> V2 changes:
>     Address comments from Dmitry Kozlyuk <dmitry.kozliuk@gmail.com> and
>     Bruce Richardson <bruce.richardson@intel.com>:
>         - Set dpdk.conf RTE_HAS_JANSSON in metrics meson.build
>         - Reduce #ifdef RTE_HAS_JANSSON blocks
> 
> V3 changes:
>     Address comment from Bruce Richardson <bruce.richardson@intel.com>:
>         - Remove redundant includes line on librte_telemetry

Nit: change log should be below "---" so that it's not included in commit.

Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
diff mbox series

Patch

diff --git a/lib/librte_metrics/meson.build b/lib/librte_metrics/meson.build
index 28a8cc115..d5be6a214 100644
--- a/lib/librte_metrics/meson.build
+++ b/lib/librte_metrics/meson.build
@@ -1,14 +1,13 @@ 
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2017 Intel Corporation
 
-sources = files('rte_metrics.c')
-headers = files('rte_metrics.h')
+sources = files('rte_metrics.c', 'rte_metrics_telemetry.c')
+headers = files('rte_metrics.h', 'rte_metrics_telemetry.h')
 
 jansson = dependency('jansson', required: false, method: 'pkg-config')
 if jansson.found()
+	dpdk_conf.set('RTE_HAS_JANSSON', 1)
 	ext_deps += jansson
-	sources += files('rte_metrics_telemetry.c')
-	headers += files('rte_metrics_telemetry.h')
-	deps += ['ethdev', 'telemetry']
-	includes += include_directories('../librte_telemetry')
 endif
+
+deps += ['ethdev', 'telemetry']
diff --git a/lib/librte_metrics/rte_metrics_telemetry.c b/lib/librte_metrics/rte_metrics_telemetry.c
index b8ee56ef0..305ee271f 100644
--- a/lib/librte_metrics/rte_metrics_telemetry.c
+++ b/lib/librte_metrics/rte_metrics_telemetry.c
@@ -2,8 +2,6 @@ 
  * Copyright(c) 2020 Intel Corporation
  */
 
-#include <jansson.h>
-
 #include <rte_ethdev.h>
 #include <rte_string_fns.h>
 #ifdef RTE_LIB_TELEMETRY
@@ -13,6 +11,7 @@ 
 #include "rte_metrics.h"
 #include "rte_metrics_telemetry.h"
 
+#ifdef RTE_HAS_JANSSON
 struct telemetry_metrics_data tel_met_data;
 
 int metrics_log_level;
@@ -541,3 +540,60 @@  RTE_INIT(metrics_ctor)
 			handle_ports_stats_values_by_name);
 #endif
 }
+#else
+int32_t
+rte_metrics_tel_reg_all_ethdev(int *metrics_register_done, int *reg_index_list)
+{
+	RTE_SET_USED(metrics_register_done);
+	RTE_SET_USED(reg_index_list);
+
+	return -ENOTSUP;
+}
+
+int32_t
+rte_metrics_tel_encode_json_format(struct telemetry_encode_param *ep,
+	char **json_buffer)
+{
+	RTE_SET_USED(ep);
+	RTE_SET_USED(json_buffer);
+
+	return -ENOTSUP;
+}
+
+int32_t
+rte_metrics_tel_get_ports_stats_json(struct telemetry_encode_param *ep,
+	int *reg_index, char **json_buffer)
+{
+	RTE_SET_USED(ep);
+	RTE_SET_USED(reg_index);
+	RTE_SET_USED(json_buffer);
+
+	return -ENOTSUP;
+}
+
+int32_t
+rte_metrics_tel_get_port_stats_ids(struct telemetry_encode_param *ep)
+{
+	RTE_SET_USED(ep);
+
+	return -ENOTSUP;
+}
+
+int32_t
+rte_metrics_tel_extract_data(struct telemetry_encode_param *ep, json_t *data)
+{
+	RTE_SET_USED(ep);
+	RTE_SET_USED(data);
+
+	return -ENOTSUP;
+}
+
+int32_t
+rte_metrics_tel_get_global_stats(struct telemetry_encode_param *ep)
+{
+	RTE_SET_USED(ep);
+
+	return -ENOTSUP;
+}
+
+#endif
diff --git a/lib/librte_metrics/rte_metrics_telemetry.h b/lib/librte_metrics/rte_metrics_telemetry.h
index 5dbb32ca0..2b6eb1ccc 100644
--- a/lib/librte_metrics/rte_metrics_telemetry.h
+++ b/lib/librte_metrics/rte_metrics_telemetry.h
@@ -2,7 +2,7 @@ 
  * Copyright(c) 2020 Intel Corporation
  */
 
-#ifdef RTE_LIB_TELEMETRY
+#ifdef RTE_HAS_JANSSON
 #include <jansson.h>
 #else
 #define json_t void *