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US 2006/0050733 A1Published application
Virtual channel arbitration in switched fabric networks
OwnerChristopher Chappell, James Mitchellinventors
Life of this patent
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Abstract
Method and apparatus, including computer program products, implementing techniques for receiving packets including node configuration packets over a plurality of virtual channels of a switch fabric, each node configuration packet including a request for access to a memory space of an Advanced Switching (AS) device, and arbitrating access of the received node configuration packets to the memory space between the plurality of virtual channels.
Claims36
A method comprising:
- receiving packets including node configuration packets over a plurality of virtual channels of a switch fabric, each node configuration packet including a request for access to a memory space of an Advanced Switching (AS) device;
- and
- arbitrating access of the received node configuration packets to the memory space between the plurality of virtual channels.
An article comprising a machine-readable medium including machine-executable instructions, the instructions to cause the machine to:
- receive packets including node configuration packets over a plurality of virtual channels of a switch fabric, each node configuration packet including a request for access to a memory space of an Advanced Switching (AS) device;
- and
- arbitrate access of the received node configuration packets to the memory space between the plurality of virtual channels.
An apparatus comprising:
- a virtual channel unit operative to:
- receive packets including node configuration packets over a plurality of virtual channels of a switch fabric, each node configuration packet including a request for access to a memory space of an Advanced Switching (AS) device;
- and
- for each received node configuration packet, perform a packet validation operation to determine if the received node configuration packet is valid, and if so, send the access request included in the valid node configuration packet to a memory space access unit for processing;
- and
- a memory space access unit operative to:
- arbitrate access to the memory space between the plurality of access requests included in the valid node configuration packets received over the plurality of virtual channels.
4 more elements
An apparatus comprising:
- a receive unit operative to:
- receive packets including node configuration packets over a plurality of virtual channels of a switch fabric, each node configuration packet including a request for access to a memory space of an Advanced Switching (AS) device;
- allocate a packet descriptor to the received packet;
- store the received packet in a buffer location corresponding to the allocated packet descriptor;
- and
- push the packet descriptor onto a virtual channel receive queue associated with the virtual channel over which the packet is received.
3 more elements
An apparatus comprising:
- a receive unit operative to:
- receive packets including node configuration packets over a plurality of virtual channels of a switch fabric, each node configuration packet including a request for access to a memory space of an Advanced Switching (AS) device;
- and
- for each received packet,
- examine the received packet to identify a packet format;
- allocate a packet descriptor to the received packet based on its identified packet format;
- store the received packet in a buffer location corresponding to the allocated packet descriptor;
- and
- push the packet descriptor onto a virtual channel receive queue based on the packet format of the received packet.
6 more elements
A system comprising:
- a first device that communicates with a second device over an Advanced Switching fabric, the first device capable of:
- receiving packets including node configuration packets over a plurality of virtual channels of the Advanced switching fabric, each node configuration packet including a request for access to a memory space of the first device;
- and
- arbitrating access of the received node configuration packets to the memory space between the plurality of virtual channels.
1 more element
Dependencies are inferred from the claim text.