Enhancement and Optimization of computing, storage & network for bare metal with hardware offloading
summary
China Mobile builds an “elastic bare metal” eCloud that moves OpenStack/QEMU/OVS datapath into hardware: a Roka compute server plus a hypercard with SoC+FPGA that offloads DPDK-OVS flows, connection tracking, meters, VLAN push/pop and stateful ACLs. OpenStack only needs small ironic hooks to provision bare-metal instances. Hardware forwards >20M pps and holds >1M table entries, uses a hybrid slowpath→hardware pipeline, and implements QoS in FPGA with dual token buckets supporting both bps and pps limits with ~5s accuracy and DHCP-aware per-flow shaping.
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chapters (11)
- 0:00Intro
- 1:37Software Architecture
- 2:26Old Hardware Architecture
- 4:20Problem!
- 6:08Our solution - Elastic Bare Metal
- 9:32Elastic bare metal network topology
- 10:42HyperCard specifications
- 11:41Comparison of acceleration modes
- 13:32Hypercard packet process 2
- 16:22Implementation of Meter in FPGA Hardware
- 18:17Summary
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