Techniques to provide recovery receive queues for flooded queues

An apparatus comprising:

• a packet buffer to store ingress packets from a network medium;
• multiple receive queues;
• a hash calculator to determine a hash value associated with each of the ingress packets provided from the packet buffer;
• an indirection table to identify a receive queue among the multiple receive queues in which to store an ingress packet based at least on an associated hash value;
• logic to selectively determine if any of the multiple receive queues are flooded in response to the packet buffer dropping more than a predetermined amount of ingress packets;
• logic to selectively modify the indirection table to route packets to at least one non-flooded recovery receive queue among the multiple receive queues in response to a receive queue determined as flooded;
• and
• logic to selectively transfer an ingress packet to a non-flooded recovery receive queue based in part on the modified indirection table and logic to selectively drop the ingress packet from the non-flooded recovery queue in response to a determination that the ingress packet was originally to be routed to the flooded receive queue.

A computer-readable medium comprising instructions stored thereon which when executed by a machine cause the machine to:

• selectively identify at least one flooded receive queue among multiple receive queues in response to a determination that more than a predefined number of ingress packets have been dropped by a packet buffer, wherein the packet buffer is capable of receiving packets from a network medium;
• selectively modify an indirection table to route ingress packets destined to the at least one flooded receive queue to at least one non-flooded recovery receive queue;
• selectively transfer an ingress packet to a non-flooded recovery receive queue based in part on the modified indirection table;
• and
• selectively drop the transferred ingress packet from the non-flooded recovery receive queue in response to a determination that the ingress packet was originally to be routed to the flooded receive queue.

A system comprising:

• a host system comprising a plurality of processors and a memory device;
• a parallel bus;
• a chipset to communicatively couple the host system to the parallel bus;
• a network interface communicatively coupled to the parallel bus and comprising:
• a packet buffer to store ingress packets from a network medium, multiple receive queues,
• a hash calculator to determine a hash value associated with each of the ingress packets provided from the packet buffer,
• an indirection table to identify a receive queue among the multiple receive queues in which to store an ingress packet based at least on an associated hash value,
• logic to selectively determine if any of the multiple receive queues are flooded in response to the packet buffer dropping more than a predetermined amount of ingress packets, and
• logic to selectively modify the indirection table to route packets to at least one non-flooded recovery receive queue among the multiple receive queues in response to a receive queue determined as flooded,
• wherein the network interface further comprises logic to selectively transfer an ingress packet to a non-flooded recovery receive queue based in part on the modified indirection table and logic to selectively drop the ingress packet from the non-flooded recovery queue in response to a determination that the ingress packet was originally to be routed to the flooded receive queue.