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IBM 74Y4064 Handbook page 162

Managing pcie adapters for ibm power system l922 9008-22l; ibm power system s922 9009-22a; ibm power system h922 9223-22h; ibm power system s914 9009-41a; ibm power system s924 9009-42a; ibm power system h924 9223-42h; ibm emx0 pcie gen3 i/o expansion dra
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(LC) and utilize shortwave laser optics. The adapter operates at link speeds of 4, 8 and 16 Gbps and will
automatically negotiate to the highest speed possible. LEDs on each port provide information on the
status and link speed of the port.
The adapter connects to a Fibre Channel switch at 4 Gb, 8 Gb or 16 Gb. It can directly attach to a device
without a switch at 16 Gb. Attachment without a switch is not supported at 4 Gb or 8 Gb.
N_Port ID Virtualization (NPIV) capability is supported through VIOS.
The adapter has the following features:
v This adapter has parts and construction compliant with the European Union Directive of Restriction of
Hazardous Substances (RoHS)
v The adapter is compliant with the PCIe base and Card Electromechanical (CEM) 2.0 specifications with
the following characteristics:
– Provides an x8 lane link interface at 14.025 Gbps, 8.5 Gbps, or 4.25 Gbps (automatic negotiation with
– Provides support for one Virtual Channel (VC0) and one Traffic Class (TC0)
– Provides configuration and I/O memory read and write, completion, and messaging capabilities
– Provides support for 64-bit addressing
– Provides error correction code (ECC) and error protection functions
– Provides link cyclic redundancy check (CRC) on all PCIe packets and message information
– Provides a large payload size of 2048 bytes for read and write functions
– Provides a large read request size of 4096 bytes
v The adapter is compatible with 4, 8, and 16 Gb Fibre Channel interface with the following
– Provides for automatic negotiation between 4 Gb, 8 Gb, or 16 Gb link attachments
– Provides support for the following Fibre Channel topologies: point-to-point (16Gb only) and fabric
– Provides support for Fibre Channel class 3
– Provides a maximum Fibre Channel throughput that is achieved by using full duplex hardware
v The adapter provides an end-to-end data path parity and CRC protection, including internal data path
random-access memory (RAM)
v Provides architectural support for multiple upper layer protocols
v Provides comprehensive virtualization capabilities with support for N_Port ID Virtualization (NPIV)
and virtual fabric (VF)
v Provides support for message signaled interrupts extended (MSI-X)
v Provides support for 255 VFs and 1024 MSi-X
v Provides an internal, high-speed static random-access memory (SRAM) memory
v Provides ECC protection of local memory that includes single-bit correction and double-bit protection
v Provides an embedded shortwave optical connection with diagnostics capability
v Provides support for an on-board context management by firmware:
– Up to 8192 FC port logins
– I/O multiplexing down to the Fibre Channel frame level
v Provides data buffers capable of supporting 64+ buffer-to-buffer (BB) credits per port for shortwave
v Provides link management and recovery that is handled by firmware
v Provides on-board diagnostic capability accessible by an optional connection
v Provides a performance up to 16 Gbps full duplex
Managing PCIe adapters



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