| 1 | /** @file
|
|---|
| 2 | * PDM - Pluggable Device Manager, Network Shaper.
|
|---|
| 3 | */
|
|---|
| 4 |
|
|---|
| 5 | /*
|
|---|
| 6 | * Copyright (C) 2011-2012 Oracle Corporation
|
|---|
| 7 | *
|
|---|
| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 9 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 10 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 11 | * General Public License (GPL) as published by the Free Software
|
|---|
| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 15 | *
|
|---|
| 16 | * The contents of this file may alternatively be used under the terms
|
|---|
| 17 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 19 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 20 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 21 | *
|
|---|
| 22 | * You may elect to license modified versions of this file under the
|
|---|
| 23 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 24 | */
|
|---|
| 25 |
|
|---|
| 26 | #ifndef ___VBox_vmm_pdmnetshaper_h
|
|---|
| 27 | #define ___VBox_vmm_pdmnetshaper_h
|
|---|
| 28 |
|
|---|
| 29 | #include <VBox/types.h>
|
|---|
| 30 | #include <VBox/err.h>
|
|---|
| 31 | #include <VBox/vmm/pdmnetifs.h>
|
|---|
| 32 | #include <iprt/assert.h>
|
|---|
| 33 | #include <iprt/sg.h>
|
|---|
| 34 |
|
|---|
| 35 |
|
|---|
| 36 | #define PDM_NETSHAPER_MIN_BUCKET_SIZE 65536 /* bytes */
|
|---|
| 37 | #define PDM_NETSHAPER_MAX_LATENCY 100 /* milliseconds */
|
|---|
| 38 |
|
|---|
| 39 | RT_C_DECLS_BEGIN
|
|---|
| 40 |
|
|---|
| 41 | typedef struct PDMNSFILTER
|
|---|
| 42 | {
|
|---|
| 43 | /** [R3] Pointer to the next group in the list. */
|
|---|
| 44 | struct PDMNSFILTER *pNext;
|
|---|
| 45 | /** [R3] Pointer to the bandwidth group. */
|
|---|
| 46 | struct PDMNSBWGROUP *pBwGroupR3;
|
|---|
| 47 | /** [R0] Pointer to the bandwidth group. */
|
|---|
| 48 | R0PTRTYPE(struct PDMNSBWGROUP *) pBwGroupR0;
|
|---|
| 49 | /** Becomes true when filter fails to obtain bandwidth. */
|
|---|
| 50 | bool fChoked;
|
|---|
| 51 | /** [R3] The driver this filter is aggregated into. */
|
|---|
| 52 | PPDMINETWORKDOWN pIDrvNet;
|
|---|
| 53 | } PDMNSFILTER;
|
|---|
| 54 |
|
|---|
| 55 | /** @defgroup grp_pdm_net_shaper The PDM Network Shaper API
|
|---|
| 56 | * @ingroup grp_pdm
|
|---|
| 57 | * @{
|
|---|
| 58 | */
|
|---|
| 59 |
|
|---|
| 60 | /** Pointer to a PDM filter handle. */
|
|---|
| 61 | typedef struct PDMNSFILTER *PPDMNSFILTER;
|
|---|
| 62 | /** Pointer to a network shaper. */
|
|---|
| 63 | typedef struct PDMNETSHAPER *PPDMNETSHAPER;
|
|---|
| 64 |
|
|---|
| 65 |
|
|---|
| 66 | /**
|
|---|
| 67 | * Obtain bandwidth in a bandwidth group (R0 version).
|
|---|
| 68 | *
|
|---|
| 69 | * @returns VBox status code.
|
|---|
| 70 | * @param pFilter Pointer to the filter that allocates bandwidth.
|
|---|
| 71 | * @param cbTransfer Number of bytes to allocate.
|
|---|
| 72 | */
|
|---|
| 73 | VMMR0DECL(bool) PDMR0NsAllocateBandwidth(PPDMNSFILTER pFilter, size_t cbTransfer);
|
|---|
| 74 |
|
|---|
| 75 | /**
|
|---|
| 76 | * Obtain bandwidth in a bandwidth group.
|
|---|
| 77 | *
|
|---|
| 78 | * @returns VBox status code.
|
|---|
| 79 | * @param pFilter Pointer to the filter that allocates bandwidth.
|
|---|
| 80 | * @param cbTransfer Number of bytes to allocate.
|
|---|
| 81 | */
|
|---|
| 82 | VMMR3DECL(bool) PDMR3NsAllocateBandwidth(PPDMNSFILTER pFilter, size_t cbTransfer);
|
|---|
| 83 |
|
|---|
| 84 | /**
|
|---|
| 85 | * Attach network filter driver from bandwidth group.
|
|---|
| 86 | *
|
|---|
| 87 | * @returns VBox status code.
|
|---|
| 88 | * @param pVM Handle of VM.
|
|---|
| 89 | * @param pDrvIns The driver instance.
|
|---|
| 90 | * @param pcszBwGroup Name of the bandwidth group to attach to.
|
|---|
| 91 | * @param pFilter Pointer to the filter we attach.
|
|---|
| 92 | */
|
|---|
| 93 | VMMR3DECL(int) PDMR3NsAttach(PVM pVM, PPDMDRVINS pDrvIns, const char *pcszBwGroup, PPDMNSFILTER pFilter);
|
|---|
| 94 |
|
|---|
| 95 | /**
|
|---|
| 96 | * Detach network filter driver from bandwidth group.
|
|---|
| 97 | *
|
|---|
| 98 | * @returns VBox status code.
|
|---|
| 99 | * @param pVM Handle of VM.
|
|---|
| 100 | * @param pDrvIns The driver instance.
|
|---|
| 101 | * @param pFilter Pointer to the filter we detach.
|
|---|
| 102 | */
|
|---|
| 103 | VMMR3DECL(int) PDMR3NsDetach(PVM pVM, PPDMDRVINS pDrvIns, PPDMNSFILTER pFilter);
|
|---|
| 104 |
|
|---|
| 105 | /**
|
|---|
| 106 | * Adjusts the maximum rate for the bandwidth group.
|
|---|
| 107 | *
|
|---|
| 108 | * @returns VBox status code.
|
|---|
| 109 | * @param pVM Handle of VM.
|
|---|
| 110 | * @param pcszBwGroup Name of the bandwidth group to attach to.
|
|---|
| 111 | * @param cbTransferPerSecMax Maximum number of bytes per second to be transmitted.
|
|---|
| 112 | */
|
|---|
| 113 | VMMR3DECL(int) PDMR3NsBwGroupSetLimit(PVM pVM, const char *pcszBwGroup, uint64_t cbTransferPerSecMax);
|
|---|
| 114 |
|
|---|
| 115 | /** @} */
|
|---|
| 116 |
|
|---|
| 117 | RT_C_DECLS_END
|
|---|
| 118 |
|
|---|
| 119 | #endif
|
|---|
| 120 |
|
|---|
