FCoE and Ethernet VF Initialization in SR-IOV Adapters With Virtual Ethernet Bridges
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Del.icio.us| IP.com Number | IPCOM000190344D |
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| Dated | Nov 24, 2009 UTC | ||
| Size | 2 page(s) (44.1 KB) | ||
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Publication Summary
Described is a method and system for incorporating an FC manager into an SR-IOV FCoE adapter.| Country | |
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| Language | English (United States) |
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As the FCoE standard has developed, the need for Access Control Lists (ACLs) on ethernet switch ports was uncovered. The ACLs "lock down" the switch to prevent various attacks designed to corrupt/steal data or deny service. With Single Root I/O Virtualization (SR-IOV) adapters, there is a need to have a Virtual Ethernet Bridge (VEB) on the adapter to facilitate the transmission of traffic between System Images (SIs) utilizing the same physical adapter without having to route all the traffic through an external switch. The ACLs described above would also need to be implemented on the various virtual ports on the VEB.
The T11 FCoE standard describes Fibre Channel Forwarders (FCFs) which must be discovered on ethernet switches. The MAC addresses of these FCFs are an integral part of the ACLs. An FCF manager can be incorporated into the SR-IOV adapter to discover and manage the set of FCF MACs.
An FCF manager runs on the SR-IOV adapter. It handles the FCF discovery and initialization protocol, including keeping a list of FCF MAC addresses. As a new VF is created/assigned, a new virtual port is created on the VEB. The ACLs are attached to the new virtual port, the MAC addresses of the FCFs needed for the ACLs are obtained from the FCF manager. For the FCoE VFs that are created, the FCF manager issues an FLOGI/FDISC to get an
NPortID for the entity and adds the appropriate...