Intel PCI Manual Do Utilizador
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Software Developer’s Manual
Architectural Overview
Descriptors store the following information about the buffers:
•
The physical address
•
The length
•
Status and command information about the referenced buffer
Descriptors contain an end-of-packet field that indicates the last buffer for a packet. Descriptors
also contain packet-specific information indicating the type of packet, and specific operations to
also contain packet-specific information indicating the type of packet, and specific operations to
perform in the context of transmitting a packet, such as those for VLAN or checksum offload.
provides detailed information about descriptor structure and operation in the context of
packet transmission and reception.