Sun Microsystems Dual Port 4x IB Host Channel Adapter PCI-ExpressModule User Manual page 42

FIGURE 4-1
User Direct Access Programming Library
This library supports service providers written according to the uDAPL 1.2
specification. Sun provides default service provider modules to support the Tavor
HCA driver.
IP over InfiniBand Kernel
The IPoIB kernel implements the IETF IPoIB protocol and provides IPoIB services
for all IB-EM ports present in the system. This driver enables the standard Solaris
TCP/IP stack to operate over Infiniband. The link layer driver encapsulates IPv4/6
packets, adds IB multicast support, extends ARP/ND address resolution, and
changes the network stack to support link addresses greater than 6 bytes.
16 Sun IB Host Channel Adapter PCI-ExpressModule User's Guide • July 2006
Solaris 10 OS
uDAPL
IBTF
Tavor HCA Driver
IB-HCA
Port 1
InfiniBand Software Stack
IPoIB
IBMF
F/W
Port 2