Write posting memory interface with block-based read-ahead mechanism

A write-posting interface, comprising:

• a read-ahead unit configured to receive a request to perform a block write to a target device and a subsequent request to perform a read to the target device;
• address range storage coupled to the read-ahead unit;
• and
• a write-post buffer coupled to the read-ahead unit;
• wherein the read-ahead unit is configured to post data for the block write in the write-post buffer prior to completion of the block write to the target device and to store an indication of an address range targeted by the block write in the address range storage;
• and
• wherein the read-ahead unit is configured to determine whether an address targeted by the read is within the address range identified by the indication stored in the address range storage.

A system, comprising:

• an initiating component;
• a component accessed by the initiating component;
• and
• a write-posting interface coupling the initiating component and the component accessed by the initiating component;
• wherein the write-posting interface is configured to receive a request initiating a block write to the component from the initiating component and to responsively post data associated with the block write prior to completion of the block write to the component, wherein the write-posting interface is configured to store an indication of an address range targeted by the block write;
• and
• wherein the write-posting interface is configured to receive a request initiating a read to the component and to responsively determine whether an address associated with the read is within the address range identified by the stored indication.

A system, comprising:

• means for buffering the data associated with a block write prior to completion of the block write to a target device;
• means for storing an indication identifying a block address range of the block write;
• and
• means for determining whether an address of a subsequent read is within the block address range identified by the indication stored by the means for storing.