ceph/src/dpdk/drivers/net/qede/base/ecore_utils.h

   1 /*
   2  * Copyright (c) 2016 QLogic Corporation.
   3  * All rights reserved.
   4  * www.qlogic.com
   5  *
   6  * See LICENSE.qede_pmd for copyright and licensing details.
   7  */
   8
   9 #ifndef __ECORE_UTILS_H__
  10 #define __ECORE_UTILS_H__
  11
  12 /* dma_addr_t manip */
  13 #define DMA_LO(x)               ((u32)(((dma_addr_t)(x)) & 0xffffffff))
  14 #define DMA_HI(x)               ((u32)(((dma_addr_t)(x)) >> 32))
  15
  16 #define DMA_LO_LE(x)            OSAL_CPU_TO_LE32(DMA_LO(x))
  17 #define DMA_HI_LE(x)            OSAL_CPU_TO_LE32(DMA_HI(x))
  18
  19 /* It's assumed that whoever includes this has previously included an hsi
  20  * file defining the regpair.
  21  */
  22 #define DMA_REGPAIR_LE(x, val)  (x).hi = DMA_HI_LE((val)); \
  23                                 (x).lo = DMA_LO_LE((val))
  24
  25 #define HILO_GEN(hi, lo, type)  ((((type)(hi)) << 32) + (lo))
  26 #define HILO_DMA(hi, lo)        HILO_GEN(hi, lo, dma_addr_t)
  27 #define HILO_64(hi, lo)         HILO_GEN(hi, lo, u64)
  28 #define HILO_DMA_REGPAIR(regpair)       (HILO_DMA(regpair.hi, regpair.lo))
  29 #define HILO_64_REGPAIR(regpair)        (HILO_64(regpair.hi, regpair.lo))
  30
  31 #endif