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/*
* Copyright (c) 2014 VMware, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __VPORT_H_
#define __VPORT_H_ 1
#include "Switch.h"
#include "VxLan.h"
#include "Stt.h"
#define OVS_MAX_DPPORTS MAXUINT16
#define OVS_DPPORT_NUMBER_INVALID OVS_MAX_DPPORTS
/*
* The local port (0) is a reserved port, that is not allowed to be be
* created by the netlink command vport add. On linux, this port is created
* at netlink command datapath new. However, on windows, we do not need to
* create it, and more, we shouldn't. The userspace attempts to create two
* internal vports, the LOCAL port (0) and the internal port (with any other
* port number). The non-LOCAL internal port is used in the userspace when it
* requests the internal port.
*/
#define OVS_DPPORT_NUMBER_LOCAL 0
#define OVS_DPPORT_INTERNAL_NAME_A "internal"
#define OVS_DPPORT_INTERNAL_NAME_W L"internal"
#define OVS_DPPORT_EXTERNAL_NAME_A "external"
#define OVS_DPPORT_EXTERNAL_NAME_W L"external"
/*
* A Vport, or Virtual Port, is a port on the OVS. It can be one of the
* following types. Some of the Vports are "real" ports on the hyper-v switch,
* and some are not:
* - VIF port (VM's NIC)
* - External Adapters (physical NIC)
* - Internal Adapter (Virtual adapter exposed on the host).
* - Tunnel ports created by OVS userspace.
*/
typedef enum {
OVS_STATE_UNKNOWN,
OVS_STATE_PORT_CREATED,
OVS_STATE_NIC_CREATED,
OVS_STATE_CONNECTED,
OVS_STATE_PORT_TEAR_DOWN,
OVS_STATE_PORT_DELETED,
} OVS_VPORT_STATE;
typedef struct _OVS_VPORT_STATS {
UINT64 rxPackets;
UINT64 txPackets;
UINT64 rxBytes;
UINT64 txBytes;
} OVS_VPORT_STATS;
typedef struct _OVS_VPORT_ERR_STATS {
UINT64 rxErrors;
UINT64 txErrors;
UINT64 rxDropped;
UINT64 txDropped;
} OVS_VPORT_ERR_STATS;
/* used for vport netlink commands. */
typedef struct _OVS_VPORT_FULL_STATS {
OVS_VPORT_STATS;
OVS_VPORT_ERR_STATS;
}OVS_VPORT_FULL_STATS;
/*
* Each internal, external adapter or vritual adapter has
* one vport entry. In addition, we have one vport for each
* tunnel type, such as vxlan, gre
*/
typedef struct _OVS_VPORT_ENTRY {
LIST_ENTRY ovsNameLink;
LIST_ENTRY portIdLink;
LIST_ENTRY portNoLink;
LIST_ENTRY tunnelVportLink;
OVS_VPORT_STATE ovsState;
OVS_VPORT_TYPE ovsType;
OVS_VPORT_STATS stats;
OVS_VPORT_ERR_STATS errStats;
UINT32 portNo;
UINT32 mtu;
/* ovsName is the ovs (datapath) port name - it is null terminated. */
CHAR ovsName[OVS_MAX_PORT_NAME_LENGTH];
PVOID priv;
NDIS_SWITCH_PORT_ID portId;
NDIS_SWITCH_NIC_INDEX nicIndex;
UINT16 numaNodeId;
NDIS_SWITCH_PORT_STATE portState;
NDIS_SWITCH_NIC_STATE nicState;
NDIS_SWITCH_PORT_TYPE portType;
UINT8 permMacAddress[ETH_ADDR_LEN];
UINT8 currMacAddress[ETH_ADDR_LEN];
UINT8 vmMacAddress[ETH_ADDR_LEN];
NDIS_SWITCH_PORT_NAME hvPortName;
IF_COUNTED_STRING portFriendlyName;
NDIS_SWITCH_NIC_NAME nicName;
NDIS_VM_NAME vmName;
GUID netCfgInstanceId;
/*
* OVS userpace has a notion of bridges which basically defines an
* L2-domain. Each "bridge" has an "internal" port of type
* OVS_VPORT_TYPE_INTERNAL. Such a port is connected to the OVS datapath in
* one end, and the other end is a virtual adapter on the hypervisor host.
* This is akin to the Hyper-V "internal" NIC. It is intuitive to map the
* Hyper-V "internal" NIC to the OVS bridge's "internal" port, but there's
* only one Hyper-V NIC but multiple bridges. To support multiple OVS bridge
* "internal" ports, we use the flag 'isBridgeInternal' in each vport. We
* support addition of multiple bridge-internal ports. A vport with
* 'isBridgeInternal' == TRUE is a dummy port and has no backing currently.
* If a flow actions specifies the output port to be a bridge-internal port,
* the port is silently ignored.
*/
BOOLEAN isBridgeInternal;
BOOLEAN isExternal;
UINT32 upcallPid; /* netlink upcall port id */
PNL_ATTR portOptions;
BOOLEAN isAbsentOnHv; /* Is this port present on the
Hyper-V switch? */
} OVS_VPORT_ENTRY, *POVS_VPORT_ENTRY;
struct _OVS_SWITCH_CONTEXT;
POVS_VPORT_ENTRY OvsFindVportByPortNo(POVS_SWITCH_CONTEXT switchContext,
UINT32 portNo);
/* "name" is null-terminated */
POVS_VPORT_ENTRY OvsFindVportByOvsName(POVS_SWITCH_CONTEXT switchContext,
PSTR name);
POVS_VPORT_ENTRY OvsFindVportByHvNameA(POVS_SWITCH_CONTEXT switchContext,
PSTR name);
POVS_VPORT_ENTRY OvsFindVportByPortIdAndNicIndex(POVS_SWITCH_CONTEXT switchContext,
NDIS_SWITCH_PORT_ID portId,
NDIS_SWITCH_NIC_INDEX index);
POVS_VPORT_ENTRY OvsFindTunnelVportByDstPort(POVS_SWITCH_CONTEXT switchContext,
UINT16 dstPort,
OVS_VPORT_TYPE ovsVportType);
NDIS_STATUS OvsAddConfiguredSwitchPorts(struct _OVS_SWITCH_CONTEXT *switchContext);
NDIS_STATUS OvsInitConfiguredSwitchNics(struct _OVS_SWITCH_CONTEXT *switchContext);
VOID OvsClearAllSwitchVports(struct _OVS_SWITCH_CONTEXT *switchContext);
NDIS_STATUS HvCreateNic(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_NIC_PARAMETERS nicParam);
NDIS_STATUS HvCreatePort(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_PORT_PARAMETERS portParam);
NDIS_STATUS HvUpdatePort(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_PORT_PARAMETERS portParam);
VOID HvTeardownPort(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_PORT_PARAMETERS portParam);
VOID HvDeletePort(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_PORT_PARAMETERS portParam);
VOID HvConnectNic(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_NIC_PARAMETERS nicParam);
VOID HvUpdateNic(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_NIC_PARAMETERS nicParam);
VOID HvDeleteNic(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_NIC_PARAMETERS nicParam);
VOID HvDisconnectNic(POVS_SWITCH_CONTEXT switchContext,
PNDIS_SWITCH_NIC_PARAMETERS nicParam);
static __inline BOOLEAN
OvsIsTunnelVportType(OVS_VPORT_TYPE ovsType)
{
return ovsType == OVS_VPORT_TYPE_VXLAN ||
ovsType == OVS_VPORT_TYPE_STT ||
ovsType == OVS_VPORT_TYPE_GRE;
}
static __inline PVOID
GetOvsVportPriv(POVS_VPORT_ENTRY ovsVport)
{
return ovsVport->priv;
}
static __inline BOOLEAN
OvsIsInternalVportType(OVS_VPORT_TYPE ovsType)
{
return ovsType == OVS_VPORT_TYPE_INTERNAL;
}
static __inline BOOLEAN
OvsIsBridgeInternalVport(POVS_VPORT_ENTRY vport)
{
if (vport->isBridgeInternal) {
ASSERT(vport->ovsType == OVS_VPORT_TYPE_INTERNAL);
}
return vport->isBridgeInternal == TRUE;
}
NTSTATUS OvsRemoveAndDeleteVport(PVOID usrParamsCtx,
POVS_SWITCH_CONTEXT switchContext,
POVS_VPORT_ENTRY vport,
BOOLEAN hvDelete, BOOLEAN ovsDelete);
static __inline POVS_VPORT_ENTRY
OvsGetExternalVport(POVS_SWITCH_CONTEXT switchContext)
{
return switchContext->virtualExternalVport;
}
static __inline UINT32
OvsGetExternalMtu(POVS_SWITCH_CONTEXT switchContext)
{
ASSERT(OvsGetExternalVport(switchContext));
return ((POVS_VPORT_ENTRY) OvsGetExternalVport(switchContext))->mtu;
}
static __inline UINT16
GetPortFromPriv(POVS_VPORT_ENTRY vport)
{
UINT16 dstPort = 0;
PVOID vportPriv = GetOvsVportPriv(vport);
/* XXX would better to have a commom tunnel "parent" structure */
ASSERT(vportPriv);
switch(vport->ovsType) {
case OVS_VPORT_TYPE_VXLAN:
dstPort = ((POVS_VXLAN_VPORT)vportPriv)->dstPort;
break;
case OVS_VPORT_TYPE_STT:
dstPort = ((POVS_STT_VPORT)vportPriv)->dstPort;
break;
default:
ASSERT(! "Port is not a tunnel port");
}
ASSERT(dstPort);
return dstPort;
}
NDIS_STATUS InitOvsVportCommon(POVS_SWITCH_CONTEXT switchContext,
POVS_VPORT_ENTRY vport);
NTSTATUS OvsInitTunnelVport(PVOID usrParamsCtx, POVS_VPORT_ENTRY vport,
OVS_VPORT_TYPE ovsType, UINT16 dstport);
NTSTATUS OvsInitBridgeInternalVport(POVS_VPORT_ENTRY vport);
POVS_VPORT_ENTRY OvsAllocateVport(VOID);
#endif /* __VPORT_H_ */
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