User Manual

Table 14 - SW Statistics
Counter Description
rx_lro_aggregated Number of packets aggregated
rx_lro_flushed Number of LRO flush to the stack
rx_lro_no_desc Number of times LRO description was not found
rx_alloc_failed Number of times failed preparing receive descriptor
rx_csum_good Number of packets received with good checksum
rx_csum_none Number of packets received with no checksum indication
tx_chksum_offload Number of packets transmitted with checksum offload
tx_queue_stopped Number of times transmit queue suspended
tx_wake_queue Number of times transmit queue resumed
tx_timeout Number of times transmitter timeout
tx_tso_packets Number of packet that were aggregated
Table 15 - Per Ring (SW) Statistics (where <i> is the ring I – per configuration)
Counter Description
rx<i>_packets Total packets successfully received on ring i
rx<i>_bytes Total bytes in successfully received packets on ring i.
tx<i>_packets Total packets successfully transmitted on ring i.
tx<i>_bytes Total bytes in successfully transmitted packets on ring i.
Driver FeaturesRev 2.2-1.0.1
Mellanox Technologies
140
4.23 Memory Window
Memory Window allows the application to have a more flexible control over remote access to its
memory. It is available only on physical functions / native machines The two types of Memory
Windows supported are: type 1 and type 2B.
Memory Windows are intended for situations where the application wants to:
• grant and revoke remote access rights to a registered region in a dynamic fashion with
less of a performance penalty
• grant different remote access rights to different remote agents and/or grant those rights
over dif
ferent ranges within registered region
For further information, please refer to the InfiniBand specification document.