root/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000/nfp_xpb.h

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INCLUDED FROM

   1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
   2 /* Copyright (C) 2015-2017 Netronome Systems, Inc. */
   3 
   4 /*
   5  * nfp_xpb.h
   6  * Author: Jason McMullan <jason.mcmullan@netronome.com>
   7  */
   8 
   9 #ifndef NFP6000_XPB_H
  10 #define NFP6000_XPB_H
  11 
  12 /* For use with NFP6000 Databook "XPB Addressing" section
  13  */
  14 #define NFP_XPB_OVERLAY(island)  (((island) & 0x3f) << 24)
  15 
  16 #define NFP_XPB_ISLAND(island)   (NFP_XPB_OVERLAY(island) + 0x60000)
  17 
  18 #define NFP_XPB_ISLAND_of(offset) (((offset) >> 24) & 0x3F)
  19 
  20 /* For use with NFP6000 Databook "XPB Island and Device IDs" chapter
  21  */
  22 #define NFP_XPB_DEVICE(island, slave, device) \
  23         (NFP_XPB_OVERLAY(island) | \
  24          (((slave) & 3) << 22) | \
  25          (((device) & 0x3f) << 16))
  26 
  27 #endif /* NFP6000_XPB_H */
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