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Viewing changes to modules/linux/shared/vmci_infrastructure.h

  • Committer: Evan Broder
  • Date: 2010-03-21 23:26:53 UTC
  • mfrom: (1.1.9 upstream)
  • Revision ID: broder@mit.edu-20100321232653-5a57r7v7ch4o6byv
Merging shared upstream rev into target branch.

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modules/linux/shared/vmci_infrastructure.h
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#define _VMCI_INFRASTRUCTURE_H_
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#define INCLUDE_ALLOW_USERLEVEL
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#define INCLUDE_ALLOW_VMMEXT
 
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#define INCLUDE_ALLOW_MODULE
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#define INCLUDE_ALLOW_VMMON
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#define INCLUDE_ALLOW_VMCORE
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/* Used to determine what checkpoint state to get and set. */
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#define VMCI_NOTIFICATION_CPT_STATE 0x1
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#define VMCI_WELLKNOWN_CPT_STATE 0x2
 
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#define VMCI_WELLKNOWN_CPT_STATE    0x2
 
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#define VMCI_DG_OUT_STATE           0x3
 
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#define VMCI_DG_IN_STATE            0x4
 
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#define VMCI_DG_IN_SIZE_STATE       0x5
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/* Used to control the VMCI device in the vmkernel */
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#define VMCI_DEV_RESET            0x01
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#define VMCI_DEV_QUIESCE          0x03
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#define VMCI_DEV_UNQUIESCE        0x04
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#define VMCI_DEV_QP_BREAK_SHARING 0x05  // DEPRECATED
 
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#define VMCI_DEV_RESTORE_SYNC     0x06
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/*
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   return hash & (size - 1);
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}
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/*
 
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 *-------------------------------------------------------------------------
 
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 *
 
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 *  VMCI_HashId --
 
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 *
 
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 *     Hash function used by the Simple Datagram API. Hashes only a VMCI id
 
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 *     (not the full VMCI handle) Based on the djb2
 
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 *     hash function by Dan Bernstein.
 
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 *
 
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 *  Result:
 
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 *     Returns guest call size.
 
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 *
 
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 *  Side effects:
 
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 *     None.
 
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 *
 
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 *-------------------------------------------------------------------------
 
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 */
 
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static INLINE int
 
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VMCI_HashId(VMCIId id,      // IN
 
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            unsigned size)  // IN
 
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{
 
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   unsigned     i;
 
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   int          hash        = 5381;
 
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   for (i = 0; i < sizeof id; i++) {
 
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      hash = ((hash << 5) + hash) + (uint8)(id >> (i * 8));
 
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   }
 
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   return hash & (size - 1);
 
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}
 
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#endif // _VMCI_INFRASTRUCTURE_H_