diff options
Diffstat (limited to 'drivers/net/qede/base/ecore_utils.h')
| -rw-r--r-- | drivers/net/qede/base/ecore_utils.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/qede/base/ecore_utils.h b/drivers/net/qede/base/ecore_utils.h new file mode 100644 index 00000000..616b44c2 --- /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 |