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IBM 74Y4064 Handbook page 166

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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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
system)
– 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
characteristics:
– 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
support
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
applications
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
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Managing PCIe adapters

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