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[dpdk-dev,v2,14/26] net/qede/base: add macros for converting pointer

Message ID 1483599848-7714-15-git-send-email-rasesh.mody@cavium.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel compilation fail Compilation issues

Commit Message

Mody, Rasesh Jan. 5, 2017, 7:03 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 616b44c..034cf1e 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))