In this patch we have added APIs for insert, delete and search APIs.
Signed-off-by: Ankur Sharma <ankursha...@vmware.com>
---
datapath-windows/ovsext/User.c | 57 ++++++++++++++++++++++++++++++++++++++++++
datapath-windows/ovsext/User.h | 10 ++++++++
2 files changed, 67 insertions(+)
diff --git a/datapath-windows/ovsext/User.c b/datapath-windows/ovsext/User.c
index 3e6cda2..36787cd 100644
--- a/datapath-windows/ovsext/User.c
+++ b/datapath-windows/ovsext/User.c
@@ -32,6 +32,7 @@
#include "NetProto.h"
#include "Flow.h"
#include "TunnelIntf.h"
+#include "Jhash.h"
#ifdef OVS_DBG_MOD
#undef OVS_DBG_MOD
@@ -598,6 +599,62 @@ OvsGetQueue(UINT32 pid)
return NULL;
}
+/*
+ * ---------------------------------------------------------------------------
+ * Given a pid, returns the corresponding instance.
+ * gOvsCtrlLock must be acquired before calling this API.
+ * ---------------------------------------------------------------------------
+ */
+POVS_OPEN_INSTANCE
+OvsGetPidInstance(POVS_SWITCH_CONTEXT switchContext, UINT32 pid)
+{
+ POVS_OPEN_INSTANCE instance;
+ PLIST_ENTRY head, link;
+ UINT32 hash = OvsJhashBytes((const VOID *)&pid, sizeof(pid),
+ OVS_HASH_BASIS);
+ head = &(switchContext->pidHashArray[hash & OVS_PID_MASK]);
+ LIST_FORALL(head, link) {
+ instance = CONTAINING_RECORD(link, OVS_OPEN_INSTANCE, pidLink);
+ if (instance->pid == pid) {
+ return instance;
+ }
+ }
+ return NULL;
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * Given a pid and an instance. This API adds instance to pidHashArray.
+ * gOvsCtrlLock must be acquired before calling this API.
+ * ---------------------------------------------------------------------------
+ */
+VOID
+OvsAddPidInstance(POVS_SWITCH_CONTEXT switchContext, UINT32 pid,
+ POVS_OPEN_INSTANCE instance)
+{
+ PLIST_ENTRY head;
+ UINT32 hash = OvsJhashBytes((const VOID *)&pid, sizeof(pid),
+ OVS_HASH_BASIS);
+ head = &(switchContext->pidHashArray[hash & OVS_PID_MASK]);
+ InsertHeadList(head, &(instance->pidLink));
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * Given a pid and an instance. This API removes instance from pidHashArray.
+ * gOvsCtrlLock must be acquired before calling this API.
+ * ---------------------------------------------------------------------------
+ */
+VOID
+OvsDelPidInstance(POVS_SWITCH_CONTEXT switchContext, UINT32 pid)
+{
+ POVS_OPEN_INSTANCE instance = OvsGetPidInstance(switchContext, pid);
+
+ if (instance) {
+ RemoveEntryList(&(instance->pidLink));
+ }
+}
+
VOID
OvsQueuePackets(UINT32 queueId,
PLIST_ENTRY packetList,
diff --git a/datapath-windows/ovsext/User.h b/datapath-windows/ovsext/User.h
index 0c18e2f..47fb10b 100644
--- a/datapath-windows/ovsext/User.h
+++ b/datapath-windows/ovsext/User.h
@@ -108,4 +108,14 @@ NTSTATUS OvsWaitDpIoctl(PIRP irp, PFILE_OBJECT fileObject);
NTSTATUS OvsNlExecuteCmdHandler(POVS_USER_PARAMS_CONTEXT usrParamsCtx,
UINT32 *replyLen);
+POVS_OPEN_INSTANCE
+OvsGetPidInstance(POVS_SWITCH_CONTEXT switchContext, UINT32 pid);
+
+VOID
+OvsAddPidInstance(POVS_SWITCH_CONTEXT switchContext, UINT32 pid,
+ POVS_OPEN_INSTANCE instance);
+
+VOID
+OvsDelPidInstance(POVS_SWITCH_CONTEXT switchContext, UINT32 pid);
+
#endif /* __USER_H_ */
--
1.9.1
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