The Linux command ethtool can display
an extensive range of statistics originated from the MAC on the X3522 network adapter. To display statistics use the
following command:
ethtool -S <interface>(where <interface> is the X3522 interface)
X3522 net drivers have to manage multi-PF configurations and for this reason statistics are not reset by reloading the driver. The only methods currently available to reset stats is to cold-reboot (power OFF/ON) the server or reload the firmware image.
Per port statistics (port_) are from
the physical adapter port. Other statistics are from the specified PCIe function.
The following table lists the complete output from the ethtool -S command.
ethtool -S output depends on the features supported by
the adapter type.| Field | Description |
|---|---|
| rx_drops | Total number of received packets dropped by the
net driver. This includes the following counters:
|
| tx_drops | Total number of transmitted packets dropped by the net driver. |
| port_tx_pause | Number of pause frames transmitted with valid pause op_code. |
| port_tx_unicast | Number of unicast packets transmitted. Includes flow control packets. |
| port_tx_multicast | Number of multicast packets transmitted. |
| port_tx_broadcast | Number of broadcast packets transmitted. |
| port_tx_lt64 | Number of frames transmitted where the length is less than 64 bytes. |
| port_tx_64 | Number of frames transmitted where the length is exactly 64 bytes. |
| port_tx_65_to_127 | Number of frames transmitted where the length is between 65 and 127 bytes. |
| port_tx_128_to_255 | Number of frames transmitted where the length is between 128 and 255 bytes. |
| port_tx_256_to_511 | Number of frames transmitted where the length is between 256 and 511 bytes. |
| port_tx_512_to_1023 | Number of frames transmitted where length is between 512 and 1023 bytes. |
| port_tx_1024_to_15xx | Number of frames transmitted where the length is between 1024 and 1518 bytes (1522 with VLAN tag). |
| port_tx_15xx_to_jumbo | Number of frames transmitted where length is between 1518 bytes (1522 with VLAN tag) and 9000 bytes. |
| port_rx_good | Number of packets received with correct CRC value and no error codes. |
| port_rx_bad | Number of packets received with incorrect CRC value. |
| port_rx_bad_bytes | Number of bytes with invalid FCS. Includes bytes from packets that exceed the maximum frame length. |
| port_rx_pause | Number of pause frames received with valid pause op_code. |
| port_rx_unicast | Number of unicast packets received. |
| port_rx_multicast | Number of multicast packets received. |
| port_rx_broadcast | Number of broadcasted packets received. |
| port_rx_lt64 | Number of packets received where the length is less than 64 bytes. |
| port_rx_64 | Number of packets received where the length is exactly 64 bytes. |
| port_rx_65_to_127 | Number of packets received where the length is between 65 and 127 bytes. |
| port_rx_128_to_255 | Number of packets received where the length is between 128 and 255 bytes. |
| port_rx_256_to_511 | Number of packets received where the length is between 256 and 511 bytes. |
| port_rx_512_to_1023 | Number of packets received where the length is between 512 and 1023 bytes. |
| port_rx_1024_to_15xx | Number of packets received where the length is between 1024 and 1518 bytes (1522 with VLAN tag). |
| port_rx_15xx_to_jumbo | Number of packets received where the length is between 1518 bytes (1522 with VLAN tag) and 9000 bytes. |
| port_rx_gtjumbo | Number of packets received with a length is greater than 9000 bytes. |
| port_rx_bad_gtjumbo | Number of packets received with a length greater than 9000 bytes, but with incorrect CRC value. |
| port_rx_align_error | Number of packets received with an align error. |
| port_rx_length_error | Number of packets received with a length error. |
|
port_rx_nodesc_drops |
Number of packets dropped by the network adapter because of a lack of RX descriptors in the RX queue. Packets can be dropped by the NIC when there are insufficient RX descriptors in the RX queue to allocate to the packet. This problem occurs if the receive rate is very high and the network adapter receive cycle process has insufficient time between processing to refill the queue with new descriptors. A number of different steps can be tried to resolve this issue:
|
| port_pm_discard_vfifo_full | Count of the number of packets dropped because of a lack of main packet memory on the adapter to receive the packet into. |
| port_rxdp_q_disabled_packets | Increments when the filter indicates the packet should be delivered to a specific RX queue which is currently disabled due to configuration error or error condition. |
| port_rxdp_di_dropped_packets |
Number of packets dropped because the filters indicate the packet should be dropped. Can happen because:
|
| port_ctpio_underflow_fail |
When the host fails to push packet bytes fast enough to match the adapter port speed. The packet is truncated and data transmitted as a poisoned packet. |
| port_ctpio_success | Number of successful CTPIO TX events. |
| ptp_invalid_sync_windows | Number of times that the PTP window (pre and post time sample) is unexpectedly large. |
| ptp_skipped_sync | Number of times that PTP synchronization is skipped due to repeated invalid_sync_windows. |
| ptp_tx_dropped_timestamp | Number of transmitted PTP packets dropped because of timestamp. |
| pps_fw | Number of PPS pulses received from firmware. |
| pps_in_count | Number of external PPS pulses received. |
| pps_in_offset_mean | Mean offset of the PPS pulse from the adapter clock, in nanoseconds. |
| pps_in_offset_last | Last offset of the PPS pulse from the adapter clock, in nanoseconds. |
| pps_in_offset_max | Maximum offset of the PPS pulse from the adapter clock, in nanoseconds. |
| pps_in_offset_min | Minimum offset of the PPS pulse from the adapter clock, in nanoseconds. |
| pps_in_period_mean | Mean period between successive PPS pulses, in nanoseconds. |
| pps_in_period_last | Last period between successive PPS pulses, in nanoseconds. |
| pps_in_period_max | Maximum period between successive PPS pulses, in nanoseconds. |
| pps_in_period_min | Minimum period between successive PPS pulses, in nanoseconds. |
| pps_in_bad | Number of bad PPS periods. |
| pps_in_oflow | Number of PPS overflows. |
| tx_stop_queue | Number of times the transmit queue has been stopped because space was not available. |
| evq_time_sync_events | Number of time sync events received. |
| evq_error_events | Number of error events received. |
| evq_flush_events | Number of flush events received. |
| evq_unsol_overflow | Number of times event queue has run out of unsolicited credits. |
| evq_unhandled_events | Number of unhandled events received. |
| rx_ip_hdr_chksum_err | Number of packets received with IP header checksum errors. |
| rx_tcp_udp_chksum_err | Number of packets received with TCP/UDP checksum errors. |
| rx_mcast_mismatch | Number of unsolicited multicast packets received. Unwanted multicast packets can be received because a connected switch simply broadcasts all packets to all endpoints or because the connected switch is not able or not configured for IGMP snooping – a process from which it learns which endpoints are interested in which multicast streams. |
| rx_merge_events | Number of RX completion events where more than one RX descriptor was completed. |
| rx_merge_packets | Number of packets delivered to the host through merge events. |
| rx_alloc_skb_fail | Number of times allocating a socket buffer to receive packets has failed. |
| rx_broadcast_drop | Number of received broadcast packets that have been dropped. |
| rx_other_host_drop | Number of received packets dropped because the MAC address does not match any MAC filter of the interface. |
| rx_nbl_empty | Number of times an RX packet event is received but the network buffer list is empty. |
| rx_buffers_posted | Number of super buffers that have been posted to receive packets. |
| rx_rollover_events | Number of times that a rollover event has been received. |
| rx_aux_pkts | Number of packets handled by the auxiliary device. |
| tx-<n>.tx_packets | Per TX queue transmitted packets. |
| rx-<n>.rx_packets | Per RX queue received packets. |