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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Cristian Dumitrescu <cristian.dumitrescu@intel.com>,
	Ray Kinsella <mdr@ashroe.eu>, Neil Horman <nhorman@tuxdriver.com>,
	Eelco Chaudron <echaudro@redhat.com>
Cc: dev@dpdk.org, Ferruh Yigit <ferruh.yigit@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>,
	David Marchand <david.marchand@redhat.com>,
	stable@dpdk.org, Luca Boccassi <bluca@debian.org>,
	Bruce Richardson <bruce.richardson@intel.com>,
	Ian Stokes <ian.stokes@intel.com>,
	Andrzej Ostruszka <amo@semihalf.com>
Subject: [dpdk-stable] [PATCH v5] meter: provide experimental alias of API for old apps
Date: Mon, 18 May 2020 19:30:23 +0100
Message-ID: <20200518183023.4185440-1-ferruh.yigit@intel.com> (raw)
In-Reply-To: <20200513121149.2283385-1-ferruh.yigit@intel.com>

On v20.02 some meter APIs have been matured and symbols moved from
EXPERIMENTAL to DPDK_20.0.1 block.

This can break the applications that were using these mentioned APIs on
v19.11. Although there is no modification on the APIs and the action is
positive and matures the APIs, the affect can be negative to
applications.

This patch provides aliasing by duplicating the existing and versioned
symbols as experimental.

Since symbols moved from DPDK_20.0.1 to DPDK_21 block in the v20.05, the
aliasing done between EXPERIMENTAL and DPDK_21.

With DPDK_21 ABI (DPDK v20.11) all aliasing will be removed and only
stable version of the APIs will remain.

Fixes: 30512af820fe ("meter: remove experimental flag from RFC4115 trTCM API")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Thomas Monjalon <thomas@monjalon.net>
Cc: Luca Boccassi <bluca@debian.org>
Cc: David Marchand <david.marchand@redhat.com>
Cc: Bruce Richardson <bruce.richardson@intel.com>
Cc: Ian Stokes <ian.stokes@intel.com>
Cc: Eelco Chaudron <echaudro@redhat.com>
Cc: Andrzej Ostruszka <amo@semihalf.com>
Cc: Ray Kinsella <mdr@ashroe.eu>
Cc: cristian.dumitrescu@intel.com

v2:
* Commit log updated

v3:
* added suggested comment to VERSION_SYMBOL_EXPERIMENTAL macro

v4:
* update script name in commit log, remove empty line

v5:
* Patch has only meter library changes
* Aliasing moved into rte_meter_compat.c
---
 lib/librte_meter/Makefile              |  2 +-
 lib/librte_meter/meson.build           |  3 +-
 lib/librte_meter/rte_meter.c           |  5 +--
 lib/librte_meter/rte_meter_compat.c    | 47 ++++++++++++++++++++++++++
 lib/librte_meter/rte_meter_compat.h    | 26 ++++++++++++++
 lib/librte_meter/rte_meter_version.map |  7 ++++
 6 files changed, 86 insertions(+), 4 deletions(-)
 create mode 100644 lib/librte_meter/rte_meter_compat.c
 create mode 100644 lib/librte_meter/rte_meter_compat.h

diff --git a/lib/librte_meter/Makefile b/lib/librte_meter/Makefile
index 48366e82b0..e2f59fee7c 100644
--- a/lib/librte_meter/Makefile
+++ b/lib/librte_meter/Makefile
@@ -19,7 +19,7 @@ EXPORT_MAP := rte_meter_version.map
 #
 # all source are stored in SRCS-y
 #
-SRCS-$(CONFIG_RTE_LIBRTE_METER) := rte_meter.c
+SRCS-$(CONFIG_RTE_LIBRTE_METER) := rte_meter.c rte_meter_compat.c
 
 # install includes
 SYMLINK-$(CONFIG_RTE_LIBRTE_METER)-include := rte_meter.h
diff --git a/lib/librte_meter/meson.build b/lib/librte_meter/meson.build
index 646fd4d43f..fdc97dc4c9 100644
--- a/lib/librte_meter/meson.build
+++ b/lib/librte_meter/meson.build
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2017 Intel Corporation
 
-sources = files('rte_meter.c')
+sources = files('rte_meter.c', 'rte_meter_compat.c')
 headers = files('rte_meter.h')
+use_function_versioning = true
diff --git a/lib/librte_meter/rte_meter.c b/lib/librte_meter/rte_meter.c
index da01429a8b..b5378f615e 100644
--- a/lib/librte_meter/rte_meter.c
+++ b/lib/librte_meter/rte_meter.c
@@ -11,6 +11,7 @@
 #include <rte_cycles.h>
 
 #include "rte_meter.h"
+#include "rte_meter_compat.h"
 
 #ifndef RTE_METER_TB_PERIOD_MIN
 #define RTE_METER_TB_PERIOD_MIN      100
@@ -120,7 +121,7 @@ rte_meter_trtcm_config(struct rte_meter_trtcm *m,
 }
 
 int
-rte_meter_trtcm_rfc4115_profile_config(
+rte_meter_trtcm_rfc4115_profile_config_(
 	struct rte_meter_trtcm_rfc4115_profile *p,
 	struct rte_meter_trtcm_rfc4115_params *params)
 {
@@ -145,7 +146,7 @@ rte_meter_trtcm_rfc4115_profile_config(
 }
 
 int
-rte_meter_trtcm_rfc4115_config(
+rte_meter_trtcm_rfc4115_config_(
 	struct rte_meter_trtcm_rfc4115 *m,
 	struct rte_meter_trtcm_rfc4115_profile *p)
 {
diff --git a/lib/librte_meter/rte_meter_compat.c b/lib/librte_meter/rte_meter_compat.c
new file mode 100644
index 0000000000..ab04b9c244
--- /dev/null
+++ b/lib/librte_meter/rte_meter_compat.c
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Intel Corporation
+ */
+
+#include <rte_function_versioning.h>
+
+#include "rte_meter.h"
+#include "rte_meter_compat.h"
+
+int
+rte_meter_trtcm_rfc4115_profile_config_s(
+	struct rte_meter_trtcm_rfc4115_profile *p,
+	struct rte_meter_trtcm_rfc4115_params *params)
+{
+	return rte_meter_trtcm_rfc4115_profile_config_(p, params);
+}
+BIND_DEFAULT_SYMBOL(rte_meter_trtcm_rfc4115_profile_config, _s, 21);
+MAP_STATIC_SYMBOL(int rte_meter_trtcm_rfc4115_profile_config(struct rte_meter_trtcm_rfc4115_profile *p,
+		struct rte_meter_trtcm_rfc4115_params *params), rte_meter_trtcm_rfc4115_profile_config_s);
+
+int
+rte_meter_trtcm_rfc4115_profile_config_e(
+	struct rte_meter_trtcm_rfc4115_profile *p,
+	struct rte_meter_trtcm_rfc4115_params *params)
+{
+	return rte_meter_trtcm_rfc4115_profile_config_(p, params);
+}
+VERSION_SYMBOL_EXPERIMENTAL(rte_meter_trtcm_rfc4115_profile_config, _e);
+
+
+int
+rte_meter_trtcm_rfc4115_config_s(struct rte_meter_trtcm_rfc4115 *m,
+	struct rte_meter_trtcm_rfc4115_profile *p)
+{
+	return rte_meter_trtcm_rfc4115_config_(m, p);
+}
+BIND_DEFAULT_SYMBOL(rte_meter_trtcm_rfc4115_config, _s, 21);
+MAP_STATIC_SYMBOL(int rte_meter_trtcm_rfc4115_config(struct rte_meter_trtcm_rfc4115 *m,
+		 struct rte_meter_trtcm_rfc4115_profile *p), rte_meter_trtcm_rfc4115_config_s);
+
+int
+rte_meter_trtcm_rfc4115_config_e(struct rte_meter_trtcm_rfc4115 *m,
+	struct rte_meter_trtcm_rfc4115_profile *p)
+{
+	return rte_meter_trtcm_rfc4115_config_(m, p);
+}
+VERSION_SYMBOL_EXPERIMENTAL(rte_meter_trtcm_rfc4115_config, _e);
diff --git a/lib/librte_meter/rte_meter_compat.h b/lib/librte_meter/rte_meter_compat.h
new file mode 100644
index 0000000000..63c282b015
--- /dev/null
+++ b/lib/librte_meter/rte_meter_compat.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Intel Corporation
+ */
+
+int
+rte_meter_trtcm_rfc4115_profile_config_(
+	struct rte_meter_trtcm_rfc4115_profile *p,
+	struct rte_meter_trtcm_rfc4115_params *params);
+int
+rte_meter_trtcm_rfc4115_profile_config_s(
+	struct rte_meter_trtcm_rfc4115_profile *p,
+	struct rte_meter_trtcm_rfc4115_params *params);
+int
+rte_meter_trtcm_rfc4115_profile_config_e(
+	struct rte_meter_trtcm_rfc4115_profile *p,
+	struct rte_meter_trtcm_rfc4115_params *params);
+int
+rte_meter_trtcm_rfc4115_config_s(struct rte_meter_trtcm_rfc4115 *m,
+	struct rte_meter_trtcm_rfc4115_profile *p);
+int
+rte_meter_trtcm_rfc4115_config_e(struct rte_meter_trtcm_rfc4115 *m,
+	struct rte_meter_trtcm_rfc4115_profile *p);
+int
+rte_meter_trtcm_rfc4115_config_(
+	struct rte_meter_trtcm_rfc4115 *m,
+	struct rte_meter_trtcm_rfc4115_profile *p);
diff --git a/lib/librte_meter/rte_meter_version.map b/lib/librte_meter/rte_meter_version.map
index 2c7dadbcac..3fef20366a 100644
--- a/lib/librte_meter/rte_meter_version.map
+++ b/lib/librte_meter/rte_meter_version.map
@@ -21,3 +21,10 @@ DPDK_21 {
 	rte_meter_trtcm_rfc4115_config;
 	rte_meter_trtcm_rfc4115_profile_config;
 } DPDK_20.0;
+
+EXPERIMENTAL {
+       global:
+
+	rte_meter_trtcm_rfc4115_config;
+	rte_meter_trtcm_rfc4115_profile_config;
+};
-- 
2.25.4


  parent reply	other threads:[~2020-05-18 18:30 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200513121149.2283385-1-ferruh.yigit@intel.com>
2020-05-13 18:05 ` [dpdk-stable] [PATCH v2] " Ferruh Yigit
2020-05-14  8:44   ` Ray Kinsella
2020-05-14 11:53     ` Ferruh Yigit
2020-05-14 11:52 ` [dpdk-stable] [PATCH v3] " Ferruh Yigit
2020-05-14 15:10   ` Ray Kinsella
2020-05-14 15:32   ` David Marchand
2020-05-14 15:56     ` Ray Kinsella
2020-05-14 16:07     ` Ferruh Yigit
2020-05-14 16:30       ` David Marchand
2020-05-14 16:11 ` [dpdk-stable] [PATCH v4] " Ferruh Yigit
2020-05-15 13:31   ` Thomas Monjalon
2020-05-15 14:41     ` Ray Kinsella
2020-05-15 15:03     ` Ray Kinsella
2020-05-15 14:36   ` [dpdk-stable] [dpdk-dev] " Ray Kinsella
2020-05-15 15:01   ` Ray Kinsella
2020-05-17 19:52   ` [dpdk-stable] " Dumitrescu, Cristian
2020-05-18  6:29     ` Ray Kinsella
2020-05-18  9:22       ` Thomas Monjalon
2020-05-18  9:30         ` Ray Kinsella
2020-05-18 10:46           ` Thomas Monjalon
2020-05-18 11:18             ` Dumitrescu, Cristian
2020-05-18 11:49               ` Ray Kinsella
2020-05-18 11:48             ` Ray Kinsella
2020-05-18 12:13               ` Thomas Monjalon
2020-05-18 13:06                 ` Ray Kinsella
2020-05-18 18:30 ` Ferruh Yigit [this message]
2020-05-19 12:16 ` [dpdk-stable] [PATCH v6] " Ferruh Yigit
2020-05-19 13:26   ` Dumitrescu, Cristian
2020-05-19 14:24     ` [dpdk-stable] [dpdk-dev] " Thomas Monjalon
2020-05-19 14:22   ` [dpdk-stable] " Ray Kinsella

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