MT7620 PROGRAMMING GUIDE
Integrated 802.11n MAC/BBP and 2.4 GHz RF/FEM Router-on-a-Chip
PPE GE1 CRC Error Dropped Packet Interrupt
Asserts when the GE1 discards a packet due to
CRC error.
PPE Port 1 Flow Control Asserted Interrupt
Asserts when flow control is asserted on port 1
(GDMA1).
PPE Port 0 Flow Control Asserted Interrupt
Asserts when flow control is asserted on port 0
(CDMA).
PPE Buffer Limitation Dropped Packet Interrupt
Asserts when the PSE discards a packet due to a
buffer sharing limitation (flow control).
PPE Free Queue Empty Threshold Interrupt
Asserts when the remaining buffers on the free
queue are lower than the empty threshold and
a forced drop condition has occurred.
TCP Segmentation Offload (TSO) Illegal packet
Asserts when the packet format is not
supported by TSO (e.g., not TSO or IPv4/v6) but
when TSO is enabled for that packet.
PDMA 2 Rx Ring Flow Control Interrupt
Asserts when any Rx ring is congested and
pauses the received queue on the switch.
PDMA 4 Tx Ring Flow Control Interrupt
Asserts when the transmitted queue on switch
is congested and pauses PDMA Tx ring.
CPU GE1 Packet Dropped for Other Reason
Interrupt
Asserts when GE1 drops a packet due to other
reasons (e.g. too short, too long, FIFO overflow,
checksum error, etc.)
CPU GE1 CRC Error Dropped Packet Interrupt
Asserts when the GE1 discards a packet due to
CRC error.
CPU Port1 (GDM) Flow Control Interrupt
Asserts when flow control is asserted on port 1
(GDM).
CPU Port0 (CDM) Flow Control Interrupt
Asserts when flow control is asserted on port 0
(CDM).
CPU PSE Buffer Sharing Packet Drop Interrupt
Asserts when the CPU PSE discards a packet
due to buffer sharing limitations (flow control).
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