Leds; Mellanox Pci-Express Hca (Ddr) - HP Cluster Platform Interconnects v2010 User Manual

• Hardware support for up to 16 million QPs, EEs and CQs
• Memory Protection and Translation Tables fully implemented in hardware
• IB Native layer 4 DMA hardware acceleration
• Multicast support
• Programmable MTU size from 256 to 2K bytes
• Four Virtual Lanes supported plus Management Lane
• Support for InfiniBand transport mechanisms (UC, UD, RC, RAW)
• EEPROM used for storing Vital Product Data (VPD)
• Embedded InfiniRISC™ Processors for Management & Subnet Management Agent (SMA)
• Integrated Physical Layer SerDes
• Integrated GSA (General Service Agents)
• Low-Latency Communication Technology
• Flexible Completion Mechanism Support (Completion Queue, Event, or Polled operation)
• I/O Panel LEDs

8.8.1 LEDs

The board has two LEDs located on the I/O panel for the 4X port. The physical link (green)
illuminates once VAPI (InfiniBand Verbs API) is started and a physical connection is made
between two nodes. The data activity link (yellow) illuminates once the InfiniBand network is
discovered over the physical link. The activity link is a steady yellow when it is discovered but
no data is being passed. The activity link blinks when data is being passed. If the LEDs are not
active, either the physical or the logical (or both) connections have not been established.
4X Port
Port 1
Installation of the Mellanox card is similar to that of the Voltaire HCAs described previously in
this chapter.

8.9 Mellanox PCI-Express HCA (DDR)

The Mellanox PCI-Express HCA supports InfiniBand protocols. It is double data rate (DDR) card
with two 4x InfiniBand 20 Gb/s ports. The standard PCI-Express interface is used for data traffic,
management traffic, and to generate and receive inbound configuration packets.
the Mellanox PCI-Express DDR HCA.
LED Name
Physical Link - Green
Logical Link - Yellow
8.9 Mellanox PCI-Express HCA (DDR)
Figure 8-9 shows
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