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From: Shreyansh Jain <shreyansh.jain@nxp.com>
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CC: <viktorin@rehivetech.com>, <thomas.monjalon@6wind.com>,
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Date: Tue, 12 Jul 2016 11:31:10 +0530
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Subject: [dpdk-dev] [PATCH v6 05/17] eal: introduce init macros
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Introduce a RTE_INIT macro used to mark an init function as a constructor.
Current eal macros have been converted to use this (no functional impact).
DRIVER_REGISTER_PCI is added as a helper for pci drivers.
Suggested-by: Jan Viktorin <viktorin@rehivetech.com>
Signed-off-by: David Marchand <david.marchand@6wind.com>
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
---
lib/librte_eal/common/include/rte_dev.h | 4 ++--
lib/librte_eal/common/include/rte_eal.h | 3 +++
lib/librte_eal/common/include/rte_pci.h | 8 ++++++++
lib/librte_eal/common/include/rte_tailq.h | 4 ++--
4 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h
index 95789f9..994650b 100644
--- a/lib/librte_eal/common/include/rte_dev.h
+++ b/lib/librte_eal/common/include/rte_dev.h
@@ -185,8 +185,8 @@ static const char DRIVER_EXPORT_NAME_ARRAY(this_pmd_name, idx) \
__attribute__((used)) = RTE_STR(name)
#define PMD_REGISTER_DRIVER(drv, nm)\
-void devinitfn_ ##drv(void);\
-void __attribute__((constructor, used)) devinitfn_ ##drv(void)\
+RTE_INIT(devinitfn_ ##drv);\
+static void devinitfn_ ##drv(void)\
{\
(drv).name = RTE_STR(nm);\
rte_eal_driver_register(&drv);\
diff --git a/lib/librte_eal/common/include/rte_eal.h b/lib/librte_eal/common/include/rte_eal.h
index a71d6f5..186f3c6 100644
--- a/lib/librte_eal/common/include/rte_eal.h
+++ b/lib/librte_eal/common/include/rte_eal.h
@@ -252,6 +252,9 @@ static inline int rte_gettid(void)
return RTE_PER_LCORE(_thread_id);
}
+#define RTE_INIT(func) \
+static void __attribute__((constructor, used)) func(void)
+
#ifdef __cplusplus
}
#endif
diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index fa74962..3027adf 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -470,6 +470,14 @@ void rte_eal_pci_dump(FILE *f);
*/
void rte_eal_pci_register(struct rte_pci_driver *driver);
+/** Helper for PCI device registeration from driver (eth, crypto) instance */
+#define DRIVER_REGISTER_PCI(nm, drv) \
+RTE_INIT(pciinitfn_ ##nm); \
+static void pciinitfn_ ##nm(void) \
+{ \
+ rte_eal_pci_register(&drv.pci_drv); \
+}
+
/**
* Unregister a PCI driver.
*
diff --git a/lib/librte_eal/common/include/rte_tailq.h b/lib/librte_eal/common/include/rte_tailq.h
index 4a686e6..71ed3bb 100644
--- a/lib/librte_eal/common/include/rte_tailq.h
+++ b/lib/librte_eal/common/include/rte_tailq.h
@@ -148,8 +148,8 @@ struct rte_tailq_head *rte_eal_tailq_lookup(const char *name);
int rte_eal_tailq_register(struct rte_tailq_elem *t);
#define EAL_REGISTER_TAILQ(t) \
-void tailqinitfn_ ##t(void); \
-void __attribute__((constructor, used)) tailqinitfn_ ##t(void) \
+RTE_INIT(tailqinitfn_ ##t); \
+static void tailqinitfn_ ##t(void) \
{ \
if (rte_eal_tailq_register(&t) < 0) \
rte_panic("Cannot initialize tailq: %s\n", t.name); \
--
2.7.4