diff options
| author | Sorin Vinturis <svinturis@cloudbasesolutions.com> | 2015-04-02 19:35:32 +0000 |
|---|---|---|
| committer | Ben Pfaff <blp@nicira.com> | 2015-04-02 12:41:50 -0700 |
| commit | 190cf5338956c53596f60b20fa7672ba052ee815 (patch) | |
| tree | 4cbd90605677cf32e82b9eabbabb4e06b44bc9cf /datapath-windows/include | |
| parent | b3cceba0b7c4013f46b01f8987e8716d7857c6db (diff) | |
| download | openvswitch-190cf5338956c53596f60b20fa7672ba052ee815.tar.gz | |
datapath-windows: Make GET_PID a separate IOCTL
Added a new IOCTL in order to retrieve the PID from the kernel datapath.
The new method uses a direct and cleaner way, as opposed to the old way
of using a Netlink transaction, avoiding the unnecessary overhead.
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Reported-at: https://github.com/openvswitch/ovs-issues/issues/31
Acked-by: Nithin Raju <nithin@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Tested-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Diffstat (limited to 'datapath-windows/include')
| -rw-r--r-- | datapath-windows/include/OvsDpInterfaceExt.h | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/datapath-windows/include/OvsDpInterfaceExt.h b/datapath-windows/include/OvsDpInterfaceExt.h index 7e09caf77..e2353767d 100644 --- a/datapath-windows/include/OvsDpInterfaceExt.h +++ b/datapath-windows/include/OvsDpInterfaceExt.h @@ -29,22 +29,27 @@ #define OVS_IOCTL_DEVICE_TYPE 45000 -/* We used Direct I/O (zero copy) for the buffers. */ #define OVS_IOCTL_START 0x100 +/* We used Direct I/O (zero copy) for the buffers. */ +/* Non-Netlink-based IOCTLs. */ +#define OVS_IOCTL_GET_PID \ + CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x0, METHOD_BUFFERED,\ + FILE_WRITE_ACCESS) +/* Netlink-based IOCTLs. */ #define OVS_IOCTL_READ \ - CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x0, METHOD_OUT_DIRECT,\ + CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x1, METHOD_OUT_DIRECT,\ FILE_READ_ACCESS) #define OVS_IOCTL_READ_EVENT \ - CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x1, METHOD_OUT_DIRECT, \ + CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x2, METHOD_OUT_DIRECT, \ FILE_READ_ACCESS) #define OVS_IOCTL_READ_PACKET \ - CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x2, METHOD_OUT_DIRECT, \ + CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x3, METHOD_OUT_DIRECT, \ FILE_READ_ACCESS) #define OVS_IOCTL_WRITE \ - CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x3, METHOD_IN_DIRECT,\ + CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x4, METHOD_IN_DIRECT,\ FILE_READ_ACCESS) #define OVS_IOCTL_TRANSACT \ - CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x4, METHOD_OUT_DIRECT,\ + CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x5, METHOD_OUT_DIRECT,\ FILE_WRITE_ACCESS) /* @@ -75,7 +80,6 @@ /* Commands available under the OVS_WIN_CONTROL_FAMILY. */ enum ovs_win_control_cmd { - OVS_CTRL_CMD_WIN_GET_PID, OVS_CTRL_CMD_WIN_PEND_REQ, OVS_CTRL_CMD_WIN_PEND_PACKET_REQ, OVS_CTRL_CMD_MC_SUBSCRIBE_REQ, |