System, method, and computer program product for inserting a gap in information sent from a drive to a host device

摘要

A system, method, and computer program product are provided for inserting a gap in information sent from a drive to a host device. In operation, one or more commands are received at a drive from a host device. Additionally, information is queued to send to the host device. Furthermore, a gap is inserted in the information to send to the host device such that the host device is capable of sending additional commands to the drive.

主权项

1. A method, comprising:
receiving at a drive one or more commands from a host device that is enabled to communicate with the drive using a storage protocol enabling the drive to prevent the host device from sending additional commands; queuing at the drive information to send to the host device, the information comprising setup information that comprises a Direct Memory Access (DMA) setup; determining at the drive whether to insert a gap; and based on the determining, conditionally inserting at the drive the gap to enable the host device to send the additional commands to the drive, wherein the inserting is at a point in time based at least in part on a current command queue depth of the drive.