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PM8032 Tachyon QE8
Quad-Channel 8 Gbps Fibre Channel Controller
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PRODUCT OVERVIEW
The PM8032 Tachyon QE8 device is a high-performance 4-port 8 Gbps
Fibre Channel controller. It features an 8-lane native PCI-Express Gen-II
link, enabling full-duplex operation simultaneously on all ports. The
Tachyon QE8 is an integrated single chip solution ideal for a variety of
high-performance I/O applications.
The proven Tachyon State-Machine architecture scales directly with
system CPU performance and is not limited by the constraints of an
embedded microprocessor. The Tachyon QE8 supports up to 4
processors per FC link using 4 independent register and API queue
structures. This feature allows systems to scale to required performance
as necessary while maintaining compatibility with the Tachyon
programming model at the register level, and with the Tachyon
Software Development Kit (TSDK) API tools.
The Tachyon QE8 supports the Protection Information model as
described in the SCSI Block Commands - 2 (SBC-2) Standard, which
incorporates a Data Integrity Field (DIF) in data records. Additionally,
the QE8 has masking capabilities for enhanced functionality. T10 DIF
provides robust CRC-based data protection with mechanisms to
initiate, extend, verify and replace, or terminate a protection domain.
The Tachyon QE8 offers additional performance by providing Multi-DMA
and advanced frame-handling functions that are normally handled by
the host processor. These enhancements make it possible for the
system to utilize intelligent frame handling while reducing CPU utilization,
memory controller utilization, and PCI-Express utilization. Features
- 4-port 8/4/2 Gbps Fibre Channel controller
- Supports 10 Km distance per link at 8G link rate without external
memory
- Native PCI-Express 2.0 8-lane Gen-II 5-Gbit Host Interface
- Multiple Outbound PCIe read requests
- Full duplex operation for each port
- Fibre Channel auto-speed negotiation
- Virtualization support with H/W assisted FC Frame Steering
- Support for up to 4 processors per FC Link
- T10 Data Integrity Field protection (T10 DIF)
- Multi-DMA for cache mirroring
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- SCSI BiDi command assist
- Enhanced TRE for higher performance on small data transfers
- CRC offload engine for enabling non-T10 DIF compliant solutions
- ERQ/SCSI LL priority control for additional Quality of Service control
- TWI control and presence detect for optical transceivers
- Platform-independent software development API tools including
sample code for Linux, and Windows
- Standard and RoHS compliant packages
- Industry-leading technical support and documentation
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DATA INTEGRITY FEATURES
- Variable block size support: 512/520
- I/O level T10 DIF support
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- CRC Offload Engine (COE)
- T10 DIF per L/A (DPL)
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TACHYON EXPRESSWAY ARCHITECTURE
- Provides an interface from the Fibre Channel core to PCI-Express
- Allows simultaneous operation on each of the four 8 Gbit ports
- AER and Error ECN support
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- MSI-X
- 2K + 32-byte T10 DIF PCIe Max TLP
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PRELIMINARY SPECIFICATIONS
- Package Type: 480-pin FC PBGA, 1mm ball pitch
- Power Dissipation: 7 Watts (Estimated)
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- Thermal Specification: 0 - 110°C, Junction Temp.
- Voltage Margin: ±5%
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MAINTAIN TACHYON FIBRE CHANNEL FAMILY
PROGRAMMING MODEL
- Registers memory mapped
- Backward compatible offsets for Fibre Channel core registers
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- Similar to the Tachyon HPFC-6600/6640 QE4 device
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STANDARD TACHYON FIBRE CHANNEL CORE
FEATURE SET
- Performance scalable State Machine-based architecture
- Independent, concurrent inbound/outbound transaction processing
- Multiple outbound context support
- Support for SCSI initiator, target and initiator/target modes
- Complete sequence segmentation and reassembly done in
hardware
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- Up to 2048-byte frame payloads
- Fully assisted FCP Class 2 and Class 3 support
- Class 2 ACK0/ACK1 model assists in hardware
- Interrupt avoidance mechanisms
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Applications
- Enterprise Storage Systems
- Embedded subsystems
- Disk Arrays
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- Multi-protocol Bridges/Routers
- Intelligent Switches
- Virtualization Devices
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PM8032 Tachyon QE8 High Performance Fibre Channel Controller Product Brief [137 KB] PMC-2062568 