2 * Copyright (c) 2014 VMware, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
24 #define OVS_MAX_DPPORTS MAXUINT16
25 #define OVS_DPPORT_NUMBER_INVALID OVS_MAX_DPPORTS
27 * The local port (0) is a reserved port, that is not allowed to be be
28 * created by the netlink command vport add. On linux, this port is created
29 * at netlink command datapath new. However, on windows, we do not need to
30 * create it, and more, we shouldn't. The userspace attempts to create two
31 * internal vports, the LOCAL port (0) and the internal port (with any other
32 * port number). The non-LOCAL internal port is used in the userspace when it
33 * requests the internal port.
35 #define OVS_DPPORT_NUMBER_LOCAL 0
38 * A Vport, or Virtual Port, is a port on the OVS. It can be one of the
39 * following types. Some of the Vports are "real" ports on the hyper-v switch,
41 * - VIF port (VM's NIC)
42 * - External Adapters (physical NIC)
43 * - Internal Adapter (Virtual adapter exposed on the host).
44 * - Tunnel ports created by OVS userspace.
49 OVS_STATE_PORT_CREATED,
50 OVS_STATE_NIC_CREATED,
52 OVS_STATE_PORT_TEAR_DOWN,
53 OVS_STATE_PORT_DELETED,
56 typedef struct _OVS_VPORT_STATS {
63 typedef struct _OVS_VPORT_ERR_STATS {
68 } OVS_VPORT_ERR_STATS;
70 /* used for vport netlink commands. */
71 typedef struct _OVS_VPORT_FULL_STATS {
74 }OVS_VPORT_FULL_STATS;
76 * Each internal, external adapter or vritual adapter has
77 * one vport entry. In addition, we have one vport for each
78 * tunnel type, such as vxlan, gre
80 typedef struct _OVS_VPORT_ENTRY {
81 LIST_ENTRY ovsNameLink;
82 LIST_ENTRY portIdLink;
83 LIST_ENTRY portNoLink;
84 LIST_ENTRY tunnelVportLink;
86 OVS_VPORT_STATE ovsState;
87 OVS_VPORT_TYPE ovsType;
88 OVS_VPORT_STATS stats;
89 OVS_VPORT_ERR_STATS errStats;
92 /* ovsName is the ovs (datapath) port name - it is null terminated. */
93 CHAR ovsName[OVS_MAX_PORT_NAME_LENGTH];
96 NDIS_SWITCH_PORT_ID portId;
97 NDIS_SWITCH_NIC_INDEX nicIndex;
99 NDIS_SWITCH_PORT_STATE portState;
100 NDIS_SWITCH_NIC_STATE nicState;
101 NDIS_SWITCH_PORT_TYPE portType;
103 UINT8 permMacAddress[ETH_ADDR_LEN];
104 UINT8 currMacAddress[ETH_ADDR_LEN];
105 UINT8 vmMacAddress[ETH_ADDR_LEN];
107 NDIS_SWITCH_PORT_NAME hvPortName;
108 IF_COUNTED_STRING portFriendlyName;
109 NDIS_SWITCH_NIC_NAME nicName;
111 GUID netCfgInstanceId;
113 * OVS userpace has a notion of bridges which basically defines an
114 * L2-domain. Each "bridge" has an "internal" port of type
115 * OVS_VPORT_TYPE_INTERNAL. Such a port is connected to the OVS datapath in
116 * one end, and the other end is a virtual adapter on the hypervisor host.
117 * This is akin to the Hyper-V "internal" NIC. It is intuitive to map the
118 * Hyper-V "internal" NIC to the OVS bridge's "internal" port, but there's
119 * only one Hyper-V NIC but multiple bridges. To support multiple OVS bridge
120 * "internal" ports, we use the flag 'isBridgeInternal' in each vport. We
121 * support addition of multiple bridge-internal ports. A vport with
122 * 'isBridgeInternal' == TRUE is a dummy port and has no backing currently.
123 * If a flow actions specifies the output port to be a bridge-internal port,
124 * the port is silently ignored.
126 BOOLEAN isBridgeInternal;
128 UINT32 upcallPid; /* netlink upcall port id */
129 PNL_ATTR portOptions;
130 BOOLEAN isAbsentOnHv; /* Is this port present on the
132 } OVS_VPORT_ENTRY, *POVS_VPORT_ENTRY;
134 struct _OVS_SWITCH_CONTEXT;
136 POVS_VPORT_ENTRY OvsFindVportByPortNo(POVS_SWITCH_CONTEXT switchContext,
138 /* "name" is null-terminated */
139 POVS_VPORT_ENTRY OvsFindVportByOvsName(POVS_SWITCH_CONTEXT switchContext,
141 POVS_VPORT_ENTRY OvsFindVportByHvNameA(POVS_SWITCH_CONTEXT switchContext,
143 POVS_VPORT_ENTRY OvsFindVportByPortIdAndNicIndex(POVS_SWITCH_CONTEXT switchContext,
144 NDIS_SWITCH_PORT_ID portId,
145 NDIS_SWITCH_NIC_INDEX index);
146 POVS_VPORT_ENTRY OvsFindTunnelVportByDstPort(POVS_SWITCH_CONTEXT switchContext,
148 OVS_VPORT_TYPE ovsVportType);
150 NDIS_STATUS OvsAddConfiguredSwitchPorts(struct _OVS_SWITCH_CONTEXT *switchContext);
151 NDIS_STATUS OvsInitConfiguredSwitchNics(struct _OVS_SWITCH_CONTEXT *switchContext);
153 VOID OvsClearAllSwitchVports(struct _OVS_SWITCH_CONTEXT *switchContext);
155 NDIS_STATUS HvCreateNic(POVS_SWITCH_CONTEXT switchContext,
156 PNDIS_SWITCH_NIC_PARAMETERS nicParam);
157 NDIS_STATUS HvCreatePort(POVS_SWITCH_CONTEXT switchContext,
158 PNDIS_SWITCH_PORT_PARAMETERS portParam);
159 NDIS_STATUS HvUpdatePort(POVS_SWITCH_CONTEXT switchContext,
160 PNDIS_SWITCH_PORT_PARAMETERS portParam);
161 VOID HvTeardownPort(POVS_SWITCH_CONTEXT switchContext,
162 PNDIS_SWITCH_PORT_PARAMETERS portParam);
163 VOID HvDeletePort(POVS_SWITCH_CONTEXT switchContext,
164 PNDIS_SWITCH_PORT_PARAMETERS portParam);
165 VOID HvConnectNic(POVS_SWITCH_CONTEXT switchContext,
166 PNDIS_SWITCH_NIC_PARAMETERS nicParam);
167 VOID HvUpdateNic(POVS_SWITCH_CONTEXT switchContext,
168 PNDIS_SWITCH_NIC_PARAMETERS nicParam);
169 VOID HvDeleteNic(POVS_SWITCH_CONTEXT switchContext,
170 PNDIS_SWITCH_NIC_PARAMETERS nicParam);
171 VOID HvDisconnectNic(POVS_SWITCH_CONTEXT switchContext,
172 PNDIS_SWITCH_NIC_PARAMETERS nicParam);
174 static __inline BOOLEAN
175 OvsIsTunnelVportType(OVS_VPORT_TYPE ovsType)
177 return ovsType == OVS_VPORT_TYPE_VXLAN ||
178 ovsType == OVS_VPORT_TYPE_STT ||
179 ovsType == OVS_VPORT_TYPE_GRE;
183 static __inline PVOID
184 GetOvsVportPriv(POVS_VPORT_ENTRY ovsVport)
186 return ovsVport->priv;
189 static __inline BOOLEAN
190 OvsIsInternalVportType(OVS_VPORT_TYPE ovsType)
192 return ovsType == OVS_VPORT_TYPE_INTERNAL;
195 static __inline BOOLEAN
196 OvsIsBridgeInternalVport(POVS_VPORT_ENTRY vport)
198 if (vport->isBridgeInternal) {
199 ASSERT(vport->ovsType == OVS_VPORT_TYPE_INTERNAL);
201 return vport->isBridgeInternal == TRUE;
204 NTSTATUS OvsRemoveAndDeleteVport(PVOID usrParamsCtx,
205 POVS_SWITCH_CONTEXT switchContext,
206 POVS_VPORT_ENTRY vport,
207 BOOLEAN hvDelete, BOOLEAN ovsDelete);
208 static __inline POVS_VPORT_ENTRY
209 OvsGetExternalVport(POVS_SWITCH_CONTEXT switchContext)
211 return switchContext->virtualExternalVport;
214 static __inline UINT32
215 OvsGetExternalMtu(POVS_SWITCH_CONTEXT switchContext)
217 ASSERT(OvsGetExternalVport(switchContext));
218 return ((POVS_VPORT_ENTRY) OvsGetExternalVport(switchContext))->mtu;
221 static __inline UINT16
222 GetPortFromPriv(POVS_VPORT_ENTRY vport)
225 PVOID vportPriv = GetOvsVportPriv(vport);
227 /* XXX would better to have a commom tunnel "parent" structure */
229 switch(vport->ovsType) {
230 case OVS_VPORT_TYPE_VXLAN:
231 dstPort = ((POVS_VXLAN_VPORT)vportPriv)->dstPort;
233 case OVS_VPORT_TYPE_STT:
234 dstPort = ((POVS_STT_VPORT)vportPriv)->dstPort;
237 ASSERT(! "Port is not a tunnel port");
243 NDIS_STATUS InitOvsVportCommon(POVS_SWITCH_CONTEXT switchContext,
244 POVS_VPORT_ENTRY vport);
245 NTSTATUS OvsInitTunnelVport(PVOID usrParamsCtx, POVS_VPORT_ENTRY vport,
246 OVS_VPORT_TYPE ovsType, UINT16 dstport);
247 NTSTATUS OvsInitBridgeInternalVport(POVS_VPORT_ENTRY vport);
249 POVS_VPORT_ENTRY OvsAllocateVport(VOID);
251 #endif /* __VPORT_H_ */