Data Sheet

Ethernet Controller I210 —Inline Functions

248

If there is insufficient space in the receive FIFO, hardware drops the packet and indicates the missed

packet in the appropriate statistics registers.

When the packet is routed to a queue with the SRRCTL.Drop_En bit set to 1b, receive packets are

dropped when insufficient receive descriptors exist to write the packet into system memory.

Note: CRC errors before the SFD are ignored. Any packet must have a valid SFD in order to be

recognized by the I210 (even bad packets).

Figure 7-1. I210 Receive Filtering Flow Chart

Discard

packet

Host VLAN

Filter

MNG

Filter

PASS

Packet Arrived

Host

MAC

Address

Filter

To MNGTo Host

Pass

FAIL

MNG

only?