[dpdk-dev] [PATCH 01/49] net/ice/base: add macro for rounding up

Leyi Rong leyi.rong at intel.com
Tue Jun 4 07:42:00 CEST 2019


Add macro ROUND_UP for rounding up to an arbitrary multiple.

Signed-off-by: Bruce Allan <bruce.w.allan at intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr at intel.com>
Signed-off-by: Leyi Rong <leyi.rong at intel.com>
---
 drivers/net/ice/base/ice_type.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ice/base/ice_type.h b/drivers/net/ice/base/ice_type.h
index e4979b832..d994ea3d2 100644
--- a/drivers/net/ice/base/ice_type.h
+++ b/drivers/net/ice/base/ice_type.h
@@ -18,6 +18,18 @@
 #define ICE_BYTES_PER_DWORD	4
 #define ICE_MAX_TRAFFIC_CLASS	8
 
+#ifndef ROUND_UP
+/**
+ * ROUND_UP - round up to next arbitrary multiple (not a power of 2)
+ * @a: value to round up
+ * @b: arbitrary multiple
+ *
+ * Round up to the next multiple of the arbitrary b.
+ * Note, when b is a power of 2 use ICE_ALIGN() instead.
+ */
+#define ROUND_UP(a, b)	((b) * DIVIDE_AND_ROUND_UP((a), (b)))
+#endif
+
 #ifndef MIN_T
 #define MIN_T(_t, _a, _b)	min((_t)(_a), (_t)(_b))
 #endif
-- 
2.17.1



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