Statistics Interface Ports - 4.1 English

10G/25G High Speed Ethernet Subsystem Product Guide (PG210)
Document ID
PG210
Release Date
2024-06-07
Version
4.1 English

The following tables show the statistics interface ports for the RX and TX paths respectively.

Table 1. Statistics Interface Ports - RX
Name I/O Clock Domain Description
stat_rx_bad_code O clk Increment for 64B/66B code violations. This signal indicates that the RX PCS receive state machines is in the RX_E state as specified by IEEE Std 802.3. This output can be used to generate MDIO register as defined in Clause 45.
stat_rx_total_packets[1:0] O clk Increment for the total number of packets received.
stat_rx_total_good_packets O clk Increment for the total number of good packets received. This value is non-zero only when a packet is received completely and contains no errors.
stat_rx_total_bytes[3:0] O clk Increment for the total number of bytes received.
stat_rx_total_good_bytes[13:0] O clk Increment for the total number of good bytes received. This value is non-zero only when a packet is received completely and contains no errors.
stat_rx_packet_small O clk Increment for all packets that are less than 64 bytes long. Packets that are less than 4 bytes are dropped.
stat_rx_jabber O clk

Increment for packets longer than

ctl_rx_max_packet_len with bad FCS.
stat_rx_packet_large O clk Increment for all packets that are more than 9215 bytes long.
stat_rx_oversize O clk Increment for packets longer than ctl_rx_max_packet_len with good FCS.
stat_rx_undersize O clk Increment for packets shorter than ctl_rx_min_packet_len with good FCS
stat_rx_toolong O clk Increment for packets longer than ctl_rx_max_packet_len with good and bad FCS
stat_rx_fragment O clk Increment for packets shorter than ctl_rx_min_packet_len with bad FCS
stat_rx_packet_64_bytes O clk Increment for good and bad packets received that contain 64 bytes.
stat_rx_packet_65_127_bytes O clk Increment for good and bad packets received that contain between 65 and 127 bytes.
stat_rx_packet_128_255_bytes O clk Increment for good and bad packets received that contain between 128 and 255 bytes.
stat_rx_packet_256_511_bytes O clk Increment for good and bad packets received that contain between 256 and 511 bytes.
stat_rx_packet_512_1023_bytes O clk Increment for good and bad packets received that contain between 512 and 1023 bytes.
stat_rx_packet_1024_1518_bytes O clk Increment for good and bad packets received that contain between 1024 and 1518 bytes.
stat_rx_packet_1519_1522_bytes O clk Increment for good and bad packets received that contain between 1519 and 1522 bytes.
stat_rx_packet_1523_1548_bytes O clk Increment for good and bad packets received that contain between 1523 and 1548 bytes.
stat_rx_packet_1549_2047_bytes O clk Increment for good and bad packets received that contain between 1549 and 2047 bytes.
stat_rx_packet_2048_4095_bytes O clk Increment for good and bad packets received that contain between 2048 and 4095 bytes.
stat_rx_packet_4096_8191_bytes O clk Increment for good and bad packets received that contain between 4096 and 8191 bytes.
stat_rx_packet_8192_9215_bytes O clk Increment for good and bad packets received that contain between 8192 and 9215 bytes.
stat_rx_bad_fcs [1:0] O clk

When this signal is positive, it indicates that the error detection logic has identified mismatches between the expected and received value of CRC32 in the received packet.

When a CRC32 error is detected, the received packet is marked as containing an error and is sent with rx_axis_tuser asserted during the last transfer (the cycle with rx_axis_tlast asserted), unless ctl_rx_ignore_fcs is asserted. This signal is asserted for one clock period for each CRC32 error detected.
stat_rx_packet_bad_fcs O clk Increment for packets between 64 and ctl_rx_max_packet_len bytes that have Frame Check Sequence (FCS) errors.
stat_rx_stomped_fcs [1:0] O clk Stomped FCS indicator. The value on this bus indicates the packets received with a stomped FCS. A stomped FCS is defined as the bitwise inverse of the expected good FCS. This output is pulsed for one clock cycle to indicate the stomped condition. Pulses can occur in back to back cycles.
stat_rx_unicast O clk Increment for good unicast packets
stat_rx_multicast O clk Increment for good multicast packets
stat_rx_broadcast O clk Increment for good broadcast packets
stat_rx_vlan O clk Increment for good 802.1Q tagged VLAN packets.
stat_rx_pause O clk Increment for 802.3x MAC Pause Packet with good FCS.
stat_rx_user_pause O clk Increment for priority based pause packets with good FCS.
stat_rx_inrangeerr O clk Increment for packets with Length field error but with good FCS.
stat_rx_bad_preamble O clk

Increment for packets received with bad preamble. This signal indicates if the Ethernet packet received was preceded by a valid preamble. A value of 1 indicates that an invalid preamble was received.

When an invalid preamble is detected, the stat_rx_bad_preamble signal is asserted regardless of the setting of the ctl_rx_check_preamble signal.
stat_rx_bad_sfd O clk

Increment for packets received with bad SFD. This signal indicates if the Ethernet packet received was preceded by a valid SFD. A value of 1 indicates that an invalid SFD was received.

When an invalid SFD is detected, the stat_rx_bad_sfd signal is asserted regardless of the setting of the ctl_rx_check_sfd signal.
stat_rx_got_signal_os O clk

Signal OS indication. If this bit is sampled as a 1, it indicates that a signal OS word was received.

Note: Signal OS should not be received in an Ethernet network.
stat_rx_truncated O clk Packet truncation indicator. A value of 1 indicates that the current packet in flight is truncated due to its length exceeding ctl_rx_max_packet_len[14:0]. This output is pulsed for one clock cycle to indicate the truncated condition. Pulses can occur in back to back cycles.
Table 2. Statistics Interface - TX Path
Name I/O Clock Domain Description
stat_tx_total_packets O clk Increment for total number of packets transmitted.
stat_tx_total_bytes[2:0] O clk Increment for total number of bytes transmitted.
stat_tx_total_good_packets O clk Increment for the total number of good packets transmitted.
stat_tx_total_good_bytes[13:0] O clk Increment for the total number of good bytes transmitted. This is signal is non-zero only when a packet is transmitted completely and contains no errors.
stat_tx_packet_64_bytes O clk Increment for good and bad packets transmitted that contain 64 bytes.
stat_tx_packet_65_127_bytes O clk Increment for good and bad packets transmitted that contain between 65 and 127 bytes.
stat_tx_packet_128_255_bytes O clk Increment for good and bad packets transmitted that contain between 128 and 255 bytes.
stat_tx_packet_256_511_bytes O clk Increment for good and bad packets transmitted that contain between 256 and 511 bytes.
stat_tx_packet_512_1023_bytes O clk Increment for good and bad packets transmitted that contain between 512 and 1023 bytes.
stat_tx_packet_1024_1518_bytes O clk Increment for good and bad packets transmitted that contain between 1024 and 1518 bytes.
stat_tx_packet_1519_1522_bytes O clk Increment for good and bad packets transmitted that contain between 1519 and 1522 bytes.
stat_tx_packet_1523_1548_bytes O clk Increment for good and bad packets transmitted that contain between 1523 and 1548 bytes.
stat_tx_packet_1549_2047_bytes O clk Increment for good and bad packets transmitted that contain between 1549 and 2047 bytes.
stat_tx_packet_2048_4095_bytes O clk Increment for good and bad packets transmitted that contain between 2048 and 4095 bytes.
stat_tx_packet_4096_8191_bytes O clk Increment for good and bad packets transmitted that contain between 4096 and 8191 bytes.
stat_tx_packet_8192_9215_bytes O clk Increment for good and bad packets transmitted that contain between 8192 and 9215 bytes.
stat_tx_packet_small O clk Increment for all packets that are less than 64 bytes long.
stat_tx_packet_large O clk Increment for all packets that are more than 9215 bytes long.
stat_tx_unicast O clk Increment for good unicast packets.
stat_tx_multicast O clk Increment for good multicast packets.
stat_tx_broadcast O clk Increment for good broadcast packets.
stat_tx_vlan O clk Increment for good 802.1Q tagged VLAN packets.
stat_tx_pause O clk Increment for 802.3x MAC Pause Packet with good FCS
stat_tx_user_pause O clk Increment for Priority based pause packets with good FCS.
stat_tx_bad_fcs O clk Increment for packets greater than 64 bytes that have FCS errors.
stat_tx_frame_error O clk Increment for packets with tx_axis_tuser set to indicate an End of Packet (EOP) abort or frames aborted by de-asserting tvalid without tlast.
stat_tx_local_fault O clk A value of 1 indicates the transmit encoder state machine is in the TX_INIT state. This output is level sensitive.
stat_tx_bad_parity O clk Increment on any clock cycle where the user-generated parity is calculated as incorrect by the TX parity checking logic.