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[dpdk-dev,14/25] net/qede/base: add macros for converting pointer

Message ID 1480756289-11835-15-git-send-email-Rasesh.Mody@cavium.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers

Checks

Context Check Description
checkpatch/checkpatch success coding style OK

Commit Message

Mody, Rasesh Dec. 3, 2016, 9:11 a.m. UTC 
  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@cavium.com>
---
 drivers/net/qede/base/ecore_utils.h | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

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))