METHOD AND SYSTEM TO ACCESS A SERVICE UTILIZING A VIRTUAL COMMUNICATIONS DEVICE
A method and system to access a service utilizing a virtual communications device is provided. The system, in one example embodiment, comprises a network layer to receive a message targeting a network address, the network address being associated with a service running on a host server; a network address detector to determine, from the message, the network address; a topology module to determine a virtual device associated with the target network address; a host address range detector to determine, based on the determined virtual device, a host address range associated with the determined virtual device; and a host communications module to communicate the message to the host server to be processed in the determined host address range.
1 . A system comprising:
a network layer to receive a message targeting a network address, the network address being associated with a service running on a host server;
a network address detector to determine, from the message, the network address;
a topology module to determine a virtual device associated with the target network address;
a host address range detector to determine, based on the determined virtual device, a host address range associated with the determined virtual device; and
a host communications module to communicate the message to the host server to be processed in the determined host address range.
2 . The system of claim 1 , wherein the service is associated with a logical server, the logical server created by a virtual machine monitor running on the host server.
3 . The system of claim 1 , wherein the service is associated with a host operating system running on the host server.
4 . The system of claim 1 , wherein the virtual device is a virtual Peripheral Component Interconnect (PCI) Express device.
5 . The system of claim 4 , wherein the virtual device is a virtual Network Interface Card (NIC).
6 . The system of claim 1 , wherein the virtual device is a virtual connectivity device.
7 . The system of claim 1 , wherein the network address is an Internet protocol (IP) address.
8 . The system of claim 1 , wherein the host server is a blade server.
9 . The system of claim 1 , wherein the host server is a rack unit server.
10 . A method comprising:
receiving a message targeting a network address, the network address being associated with a service running on a host server;
determining, from the message, the network address;
determining a virtual device associated with the target network address;
determining, based on the determined virtual device, a host address range associated with the determined virtual device;
determining an interrupt resource associated with the virtual device and
communicating the message to the host server to be processed in the determined host address range.
11 . The method of claim 10 , further comprising notifying the host server of the message arrival using the interrupt resource.
12 . The method of claim 10 , wherein the receiving of the message targeting the network address associated with the service comprises receiving the message targeting the network address associated with a logical server, the logical server created by a virtual machine monitor running on the host server.
13 . The method of claim 10 , wherein the receiving of the message targeting the network address associated with the service comprises receiving the message targeting the network address associated with a host operating system running on the host server.
14 . The method of claim 10 , wherein the virtual device is a virtual Peripheral Component Interconnect (PCI) Express device.
15 . The method of claim 14 , wherein the virtual device is a virtual Network Interface Card (NIC).
16 . The method of claim 10 , wherein the virtual device is a virtual connectivity device.
17 . The method of claim 10 , wherein the network address is an Internet protocol (IP) address.
18 . The method of claim 10 , wherein the host server is a blade server.
19 . The method of claim 10 , wherein the host server is a rack unit server.
20 . A system comprising:
a host central processing unit (CPU);
a Peripheral Component Interconnect (PCI) Express bus; and
a consolidated I/O adapter coupled to the host CPU via the PCI Express bus, the consolidated I/O adapter being configured to generate virtual PCI Express devices, the virtual PCI Express devices to be presented to the host CPU as physical PCI Express devices.
21 . A machine-readable medium having stored thereon data representing sets of instructions which, when executed by a machine, cause the machine to:
receive a message targeting a network address, the network address being associated with a service running on a host server;
determine, from the message, the network address;
determine a virtual device associated with the target network address;
determine, based on the determined virtual device, a host address range associated with the determined virtual device; and
communicate the message to the host server to be processed in the determined host address range.
22 . A system comprising:
means for receiving a message targeting a network address, the network address being associated with a service running on a host server;
means for determining, from the message, the network address;
means for determining a virtual device associated with the target network address;
means for determining, based on the determined virtual device, a host address range associated with the determined virtual device; and
means for communicating the message to the host server to be processed in the determined host address range.