[dpdk-dev] [PATCH 14/25] net/qede/base: add macros for converting pointer
Rasesh Mody
Rasesh.Mody at cavium.com
Sat Dec 3 10:11:18 CET 2016
Add macros PTR_LO and PTR_HI (for converting pointer to HI and LOW bits for
passing to FW hsi handles).
Signed-off-by: Rasesh Mody <Rasesh.Mody at cavium.com>
---
drivers/net/qede/base/ecore_utils.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/qede/base/ecore_utils.h b/drivers/net/qede/base/ecore_utils.h
index 616b44c2..034cf1eb 100644
--- a/drivers/net/qede/base/ecore_utils.h
+++ b/drivers/net/qede/base/ecore_utils.h
@@ -10,6 +10,12 @@
#define __ECORE_UTILS_H__
/* dma_addr_t manip */
+/* Suppress "right shift count >= width of type" warning when that quantity is
+ * 32-bits rquires the >> 16) >> 16)
+ */
+#define PTR_LO(x) ((u32)(((osal_uintptr_t)(x)) & 0xffffffff))
+#define PTR_HI(x) ((u32)((((osal_uintptr_t)(x)) >> 16) >> 16))
+
#define DMA_LO(x) ((u32)(((dma_addr_t)(x)) & 0xffffffff))
#define DMA_HI(x) ((u32)(((dma_addr_t)(x)) >> 32))
--
2.11.0.rc1
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