diff options
| author | Anand Kumar <kumaranand@vmware.com> | 2018-06-22 10:09:25 -0700 |
|---|---|---|
| committer | Alin Gabriel Serdean <aserdean@ovn.org> | 2018-06-24 23:58:13 +0300 |
| commit | 9d7c8de9fe557efa9c55bfe4fe8947785f252c3a (patch) | |
| tree | 96db441872d357096206009ceef2446202d56172 /datapath-windows/ovsext/Util.h | |
| parent | de759da2dd5086cdb2f0fd49a5f3e50f965d4ad3 (diff) | |
| download | openvswitch-9d7c8de9fe557efa9c55bfe4fe8947785f252c3a.tar.gz | |
datapath-windows: Use spinlock instead of RW lock for ct entry
This patch mainly changes a ndis RW lock for conntrack entry to a
spinlock along with some minor refactor in conntrack. Using
spinlock instead of RW lock as RW locks causes performance hits
when acquired/released multiple times.
- Use NdisInterlockedXX wrapper api's instead of InterlockedXX.
- Update 'ctTotalRelatedEntries' using interlocked functions.
- Move conntrack lock out of NAT module.
Testing:
Verified loading/unloading the driver with driver verified enabled.
Ran TCP/UDP and ICMP traffic.
Signed-off-by: Anand Kumar <kumaranand@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@ovn.org>
Signed-off-by: Alin Gabriel Serdean <aserdean@ovn.org>
Diffstat (limited to 'datapath-windows/ovsext/Util.h')
| -rw-r--r-- | datapath-windows/ovsext/Util.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/datapath-windows/ovsext/Util.h b/datapath-windows/ovsext/Util.h index 6f02147b6..a9bccf36c 100644 --- a/datapath-windows/ovsext/Util.h +++ b/datapath-windows/ovsext/Util.h @@ -105,6 +105,24 @@ VOID OvsAppendList(PLIST_ENTRY dst, PLIST_ENTRY src); #define BIT16(_x) ((UINT16)0x1 << (_x)) #define BIT32(_x) ((UINT32)0x1 << (_x)) +#define OVS_ACQUIRE_SPIN_LOCK(_pLock, _dispatchLevel) \ +{ \ + if (_dispatchLevel) { \ + NdisDprAcquireSpinLock(_pLock); \ + } else { \ + NdisAcquireSpinLock(_pLock); \ + } \ +} + +#define OVS_RELEASE_SPIN_LOCK(_pLock, _dispatchLevel) \ +{ \ + if (_dispatchLevel) { \ + NdisDprReleaseSpinLock(_pLock); \ + } else { \ + NdisReleaseSpinLock(_pLock); \ + } \ +} + BOOLEAN OvsCompareString(PVOID string1, PVOID string2); /* |