10/26/2022 0 Comments Lso cleaner for mac#Lso cleaner for mac driver#NDIS driver can declare following types of TX checksum offload VirtIO queues contain memory blocks for SG entry only (physical address + size), all the data buffers, where the physical address points to, are not related to VirtIO.īuffers, required for VirtIO headers and network data (when necessary) and OS-specific object, required for data indication, are allocated by the driver additionally during initialization. MTU can be changed through the device properties in device manager.įor bidirectional data channel to/from device, the driver initializes 2 VirtIO queues (transmit and receive). NDIS sends without LSO packets up to MTU, the driver can not indicate reception of packets bigger than MTU. The default MTU reported by driver to NDIS is 1514 bytes, i.e. In receive operations the driver can indicate up to NDIS as many packets as VirtIO device can receive without waiting for NDIS to free receive buffers. Multiple send operations are supported by driver and not required to be serialized by NDIS (Logo requirements).įor send operation scatter-gather mode is a default, it can be disabled by configuration to force copy mode to preallocated buffers. The NetKVM driver supports non-serialized data sending and receiving. NDIS driver features Basic networking operations
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