13
Mellanox Technologies Confidential
Rev 1.1
2
Interfaces
2.1
InfiniBand Interface
The network ports of the ConnectX®-6 adapter cards are compliant with
the InfiniBand
Architecture Specification, Release 1.3 and Vol. 2, Release 1.4
. InfiniBand traffic is
transmitted through the c
ard’s
QSFP56 connector
.
2.2
Ethernet QSFP56 Interface
The adapter card includes special circuits to protect from ESD shocks to the card/server
when plugging copper cables.
The network ports of the ConnectX-6 adapter card are compliant with the IEEE 802.3
Ethernet standards listed in
. Ethernet traffic is transmitted through
the QSFP56 connector on the adapter card.
2.3
PCI Express Interface
Initial release of ConnectX-6 cards is InfiniBand and PCIe Gen 3.0 only. VPI and PCIe
Gen 4.0 functionality will be added in a future release.
ConnectX®-6 adapter cards support PCI Express Gen 3.0/4.0 (1.1 and 2.0 compatible)
through x16 edge connectors. The device can be either a master initiating the PCI Express
bus operations, or a slave responding to PCI bus operations.
The following lists PCIe interface features:
•
PCIe Gen 3.0 and 4.0 compliant, 2.0 and 1.1 compatible
•
2.5, 5.0, 8.0, or 16.0 GT/s link rate x16
•
Auto-negotiates to x16, x8, x4, x2, or x1
•
Support for MSI/MSI-X mechanisms