Imported Upstream version 16.07-rc1

[deb_dpdk.git] / drivers / net / qede / base / ecore_utils.h

diff --git a/drivers/net/qede/base/ecore_utils.h b/drivers/net/qede/base/ecore_utils.h
new file mode 100644 (file)
index 0000000..616b44c
--- /dev/null
+++ b/drivers/net/qede/base/ecore_utils.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2016 QLogic Corporation.
+ * All rights reserved.
+ * www.qlogic.com
+ *
+ * See LICENSE.qede_pmd for copyright and licensing details.
+ */
+
+#ifndef __ECORE_UTILS_H__
+#define __ECORE_UTILS_H__
+
+/* dma_addr_t manip */
+#define DMA_LO(x)              ((u32)(((dma_addr_t)(x)) & 0xffffffff))
+#define DMA_HI(x)              ((u32)(((dma_addr_t)(x)) >> 32))
+
+#define DMA_LO_LE(x)           OSAL_CPU_TO_LE32(DMA_LO(x))
+#define DMA_HI_LE(x)           OSAL_CPU_TO_LE32(DMA_HI(x))
+
+/* It's assumed that whoever includes this has previously included an hsi
+ * file defining the regpair.
+ */
+#define DMA_REGPAIR_LE(x, val) (x).hi = DMA_HI_LE((val)); \
+                               (x).lo = DMA_LO_LE((val))
+
+#define HILO_GEN(hi, lo, type) ((((type)(hi)) << 32) + (lo))
+#define HILO_DMA(hi, lo)       HILO_GEN(hi, lo, dma_addr_t)
+#define HILO_64(hi, lo)                HILO_GEN(hi, lo, u64)
+#define HILO_DMA_REGPAIR(regpair)      (HILO_DMA(regpair.hi, regpair.lo))
+#define HILO_64_REGPAIR(regpair)       (HILO_64(regpair.hi, regpair.lo))
+
+#endif