Coalescing multiple contexts into a single data transfer in a media controller architecture

Described embodiments provide for transferring data between a host device and a storage media. A host data transfer request is received and a total size of the data transfer is determined. One or more contexts corresponding to the total size of the requested transfer are generated and are associated with transfers of data. If the data transfer is a write operation, one or more data segments from the host device are transferred into a buffer. The combined size of the data segments corresponds to the total size of the data transfer. In accordance with the contexts, the one or more data segments are transferred from the buffer to the storage media. If the requested data transfer is a read operation, in accordance with the contexts, data from the storage media is retrieved into a buffer and grouped into one or more segments, which are transmitted to the host device.