Chapter 1 About Host Driver - Cisco GEM318P User Manual

Architecture
See the
Note
significance of prompts used in the examples in this chapter.
Architecture
Figure 1-1
displays ULPs and APIs in relation to other IB software elements.
Figure 1-1 HCA Supported Protocols and API Architecture
Application
Level
Diag
Tools
User
User Level
APIs
MAD API
Upper
Layer
Protocol
Mid-Layer
SA
Client
Provider
Hardware
IPoIB IP over InfiniBand
Sockets Direct
SDP
Protocol
SCSI RDMA
SRP
Protocol (Initiator)
Cisco SFS InfiniBand Host Drivers User Guide for Linux
1-2
"Root and Non-root Conventions in Examples" section on page ix
displays the software architecture of the protocols and APIs that HCAs support. The figure
IP Based
MPI Based
App
App Access
Access
uDAPL
Various
MPI's
User Level
Verbs / API
IPoIB SDP
SMA
InfiniBand Verbs / API
InfiniBand HCA
Message Passing
MPI
Interface
User Direct Access
UDAPL
Programming Lib
SA Subnet
Administrator
Block
Storage
Access
SRP
Connection Manager
Abstraction (CMA)
Connection
Manager
Hardware
Specific Driver
MAD Management
Datagram
SMA Subnet Manager
Agent
HCA Host Channel
Adapter
Chapter 1 About Host Drivers
for details about the
User Space
Kernel Space
OL-12309-01