US 12,229,068 B1
Multi-destination DMA for packet broadcast
Hao Cai, Sammamish, WA (US); Timothy S. Michels, Greenacres, WA (US); Daniel J. McDermott, Spokane Valley, WA (US); and David Ryan, Westford, MA (US)
Assigned to FS, Inc., Seattle, WA (US)
Filed by F5, Inc., Seattle, WA (US)
Filed on Mar. 16, 2022, as Appl. No. 17/696,201.
Int. Cl. G06F 13/40 (2006.01); G06F 13/28 (2006.01); G06F 13/38 (2006.01); H04L 45/16 (2022.01)
CPC G06F 13/4022 (2013.01) [G06F 13/28 (2013.01); G06F 13/385 (2013.01); H04L 45/16 (2013.01); G06F 2213/3808 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented by a network traffic management system, the method comprising: receiving a network broadcast packet by a hardware network interface controller (NIC) connected to a host computer; transmitting, by the hardware NIC, a request to an agent process running on the host computer to identify a plurality of memory locations in the host computer that should receive the network broadcast packet; receiving, by the hardware NIC, a response from the agent process that comprises a plurality of memory location identifiers associated with the plurality of memory locations in the host computer; and writing, by the hardware NIC, the network broadcast packet to the plurality of memory locations in the host computer that are associated with the plurality of memory location identifiers, wherein the writing comprises performing a plurality of direct memory access (DMA) operations.