[v6,1/9] eal: introduce macros for getting value for bit
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Commit Message
There are several drivers which duplicate bit generation macro.
Introduce a generic bit macros so that such drivers avoid redefining
same in multiple drivers.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
---
Changelog:
v4->v5:
- Addressed comments from Morten Brørup
- Renamed newly added macro to RTE_BIT64
- Added doxygen comment section for the macro
v1->v2:
- Addressed comments from Thomas and Gaten.
- Avoided new file, added macro to rte_bitops.h
---
lib/librte_eal/include/rte_bitops.h | 8 ++++++++
1 file changed, 8 insertions(+)
@@ -17,6 +17,14 @@
#include <rte_debug.h>
#include <rte_compat.h>
+/**
+ * Get the uint64_t value for a specified bit set.
+ *
+ * @param nr
+ * The bit number in range of 0 to 63.
+ */
+#define RTE_BIT64(nr) (UINT64_C(1) << (nr))
+
/*------------------------ 32-bit relaxed operations ------------------------*/
/**