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| QLogic Corporation GEM359 Guardian Enclosure Management Controller Data Sheet Features s Product Description The GEM359 is the latest addition to QLogic's enclosure management product line. Designed as a complete chassis management controller for SCSI and Fibre Channel enclosures, the highly integrated GEM359 monitors all aspects of a server's backplane or storage enclosure. The chip provides in-band SAF-TE and SES management through the SCSI interface or from the SFF-8067 (ESI) ports on Fibre Channel drives. The GEM359 also supports the IPMI specification by providing management data to a baseboard management controller through the IPMB. Users can implement the GEM359 for a variety of applications, from a simple hot swap or SCSI drive backplane controller in a server to a full-featured chassis management controller for a storage subsystem. The advanced feature set allows management of the hot swap drives and monitors all the environmental and control functions of the chassis or backplane. The GEM359 has 59 input and output pins that allow extensive user customization. These pins allow users to define the number of drive slots (up to 14), power supplies, temperature sensors, door locks, and other components specific to the design. In addition, the GEM359 supports fan tachometer inputs and pulse width monitor outputs, providing the system with specific fan monitoring and control.To monitor other characteristics, the GEM359 can control the status LEDs and set thresholds on temperatures and fan speeds. To minimize development time, QLogic supplies the user with the GEM Configuration Utility. This easy to use, menu driven software tool configures various GEM359 parameters, which eliminates the need to customize the code for most applications. s s s s s s s s s Compliance with SCSI Accessed Fault Tolerant Enclosures (SAF-TE) specification, version 1.00 and addendum Compliance with SCSI-3 Enclosure Services Command Set (SES) draft, version 8.0b Compliance with Intelligent Platform Management Interface (IPMI), version 1.0 Low Voltage Differential (LVD) SCSI interface SCSI-3 compatible Two small form factor (SFF)-8067 interfaces for Fibre Channel applications Two I2C interfaces for connectivity to I2C devices such as a temperature sensor, NVRAM, and the Intelligent Platform Management Bus (IPMB) Embedded Universal Asynchronous Receiver/Transmitter (UART), 16550 compatible, provides a serial port that can be used as a debug port Up to 14 drive slots supported 59 general purpose input/output pins 39 bidirectional pins 20 dedicated output pins Four fan tachometer inputs for fan speed monitoring Three Pulse Width Modulator (PWM) outputs for fan speed control Automatic notification of environmental failure Watchdog and heartbeat timers 144-pin Low profile Quad Flat Pack (LQFP) GEM configuration utility software provided Firmware is provided for the following interfaces (contact QLogic for availability): SCSI accessed fault-tolerant enclosures (SAF-TE) SCSI-3 enclosure services (SES) Intelligent platform management interface (IPMI) and Intelligent Platform Management Bus (IPMB) Fan tachs and PWMs Evaluation boards available s s s s s s s s 33359-580-00 C GEM359 1 QLogic Corporation The GEM359 block diagram is illustrated in figure 1. GEM359 LED/ADR OUTPUTS ADR/LED MUX MEMORY DATA MUX SCSI CORE SCSI COMMAND PROCESSOR CNTR REG SCSI STATUS FIFO DATA IN/OUT TIMER AND WATCHDOG FAN TACH PWM INT PARITY IN/OUT INT CPU INT TWO SFF-8067 INTERFACE MODULES EXT. CONTROL FLASH IC MASTER SLAVE INT 2 INT I2C DEVICES SAF-TE REGISTERS INT IPMB I2 C MASTER SLAVE UART DECODER INT SCSI BUS OR TWO SFF-8067 PORTS BIDIR I/O CLOCK FAN SPEED IN FAN SPEED CONTROL GPIO Figure 1. GEM359 Block Diagram Applications Figure 2 illustrates the GEM359 in a typical SCSI application. Figure 3 illustrates the GEM359 in a typical Fibre Channel application. SCSI HOST GLOBAL ALARM SCSI BUS SCSI DISK DRIVES LED CONTROL SLOT STATUS FRU LM75 I2C BUS IPMI DATA TO HOST IPMB I2C I2C GPIO GPIO POWER SUPPLY TACH PWM FAN SPEED CONTROL FAN SPEED Figure 2. GEM359 SCSI Application 2 GEM359 SCSI BUS GEM359 GPIO 33359-580-00 C QLogic Corporation GLOBAL ALARM SLOT CONTROL LEDS DUAL LOOP FC DRIVE CONFIGURATION SFF8067 I2C BUS IPMI DATA TO HOST IPMB I2C I2C GPIO PORT 0 GEM359 FC BUS PORT 1 GPIO POWER SUPPLY TACH PWM FAN SPEED SFF8067 SFF8067 (ESI) SFF8067 (ESI) FC HOST FRU LM75 PORT BYPASS CONTROL CIRCUIT FAN SPEED CONTROL LEGEND ESI = ENCLOSURE SERVICES INTERFACE FRU = FIELD REPLACEABLE UNIT FC HOST Figure 3. GEM359 Fibre Channel Application IPMI Application Users can easily integrate the GEM359 into systems that support the IPMI specification. Internal server backplanes typically utilize the GEM359 as a hot swap controller that uses one of the I2C interfaces as an intelligent platform management bus (IPMB). The IPMB connects to the servers' baseboard management controller (for example, QLogic's Zircon chip), as shown in figure 4. SERVER SCSI SERVER BACKPLANE -TEMP -VOLTAGE -LED CTRL -DEV_INS -P/S -CONFIG GEM Configuration Utility The menu-driven, Windows NT and Windows 2000 compatible GEM configuration utility allows the user to configure the GEM359 to meet the requirements of their system, all without writing a single line of code. This tool performs various functions, including updating the flash ROM and configuring all the GPIOs. The GEM configuration utility allows users to specify a variety of options, including: s Number of device slots s SCSI or Fibre Channel ID of each slot s Number of fans, power supplies, temperature sensors s Upper and lower temperature thresholds s Audible alarm and door lock installed This complete solution provided by QLogic reduces development costs and improves time to market for new and future systems. In addition, SES, SAF-TE, and IPMI firmware are planned for system designers needing a highly customized solution. GEM359 FRU SDR -SERVER -STORAGE I2C SEL -SERVER -STORAGE FRU IPMB ZIRCON BMC LEGEND FRU = FIELD REPLACEABLE UNIT SDR = SENSOR DATA RECORD SEL = SYSTEM EVENT LOG Figure 4. Hot Swap Controller 33359-580-00 C GEM359 3 QLogic Corporation Figures 5 through 7 illustrate some of the configuration screens from the GEM utility. These figures show how the user can configure the GEM359 to meet the specific requirements of their applications by selecting the features that the device needs. Figure 5. Edit Enclosure Configuration Screen 4 GEM359 33359-580-00 C QLogic Corporation Figure 6. Edit Operational Parameter Data Screen (1 of 2) Figure 7. Edit Operational Parameter Data Screen (2 of 2) 33359-580-00 C GEM359 5 QLogic Corporation Hardware Functional Description SCSI Interface The GEM359 SCSI interface has the following features: s On-chip 48-mA and LVD SCSI transceivers s LVD and single-ended SCSI operation (multimode) with a differential sense input that automatically selects the operating mode s Eight-bit, asynchronous SCSI data transfers (in compliance with the SAF-TE specification) s Wide SCSI addressing with hardware assignable SCSI IDs s Multiple initiator support s Two SFF-8067 ports for Fibre Channel implementations s Fibre Channel loop identifiers are read from an external port or stored in the GEM359 configuration table. s Ultra2 and Ultra3 compatible Pulse Width Modulator (PWM) The GEM359 PWM has the following features: s Three PWM outputs are provided for fan speed control or tone generation. s The fan speed is set to 80 percent; if a fan fail or temperature out-of-range condition occurs, the fan speed is increased to 100 percent. s PWM outputs are driven by open-drain, 6 mA pads that provide enough drive to control the fan speed logic. s Unused PMW outputs can be assigned as GPIO pins. General Purpose Input/Output (GPIO) The GEM359 has 59 individually programmable I/O pins with following features: s 39 open-drain output, bidirectional pins s 20 dedicated output pins s Functions assigned using the GEM utility software (check for feature availability) s Pins can monitor and/or control audible and visual indicators, door locks, power supplies, intrusion alert signals, port bypass control circuits, etc. Tachometer Counters The GEM359 tachometer counters have the following features: s Four tachometer counter modules are incorporated to monitor the speed of up to four fans. s Fan inputs can also be used as GPIO pins. Software Functional Description SCSI Command Set The following SCSI commands are supported: s Inquiry s Read Buffer s Write Buffer s Test Unit Ready s Request Sense s Send Diagnostic s Receive Diagnostics s Upload Firmware Universal Asynchronous Receiver/Transmitter (UART) The GEM359 UART can be used as a firmware debug port. I2C Serial Bus The GEM359 I2C serial bus has the following features. s System configuration can be read from an external EEPROM through the I2C bus. s Slot power status can be saved to an external EEPROM through the I2C bus. 2 s Two independent master/slave I C interfaces are provided. s 100K-bits and 400K-bits operations supported s Multimaster arbitration and slave generated wait states supported s Clock stretching supported 2 s I C interfaces incorporate eight-bit FIFO for data transfers s Read/write pass-thru data port allows the host to communicate with I2C devices external to the GEM359. (For example, an LCD display can be driven from the I2C.) SAF-TE Command Set (Parallel SCSI Configurations) The following SAF-TE commands for parallel SCSI are supported: s Read Enclosure Configuration s Read Enclosure Status s Read Device Slot Status s Read Global Flags s Write Device Slot Status s Perform Slot Operation s Send Global Flags 6 GEM359 33359-580-00 C QLogic Corporation SES Command Set (Fibre Channel and SCSI Configurations) The following SES pages are supported: s 00h Supported Diagnostics (parallel SCSI) s 01h Configuration s 02h Enclosure control Enclosure status s 04h String Out (download firmware and configuration) String In (upload configuration) Control Functions The following list summarizes the GEM359 control functions: s LED on/off /flashing pattern s Speaker on/off s Enclosure temperature alert on/off s Enclosure power on/off s Slot locked or unlocked s Uninterrupted power supply (UPS) enable and disable control (SES) s Global alarm on/off s Global fail on/off s Bypass port (Fibre Channel) enable and disable control s Upload configuration files and firmware s Vendor-unique control IPMI Command Set The following IPMI commands are supported: s Global commands s FRU commands s Sensor commands s Event commands Management Features GEM Utility Software The GEM utility, a Windows 98, Windows NT, and Windows 2000 compatible application, provides the following features: s Set pin assignments and operating configurations s Download firmware to flash ROM s Create, save, and download configuration files to the GEM controller s Performs diagnostics: executes SCSI and SAF-TE commands on selected SCSI targets Enclosure Configuration Parameters The following parameters are user programmable: s Number of device slots s Number of fans s Number of power supplies s Number of temperature sensors s Temperature threshold value s Audible alarm installed s Door lock installed s UPS supported (SES) s Product identifier s Enclosure identifier s SCSI channel identifier s SCSI ID or Fibre Channel-Arbitrated Loop (FC-AL) ID of each device slot 2 s I C pass-thru bus enable/disabled s Automatic notification of global failure status can be enabled/disabled. A mask encoding is provided to the system designer to define a global failure condition, for example, that fans or power supplies have failed. 2 s I C bus parameters s GEM busy indicator Enclosure Status Data The following enclosure status data is provided: s Device slot status: Drive present Slot address Swap Identify Prepare for removal/insertion Prepare for operation Unconfigured drive s s s s s s s s Power supply status (present, failure) Fan status (present, failure) Temperature status (present, value, failure) Door lock status (present, unlocked/locked state) Audible alarm (on/off) UPS (present, failure) (SES) SCSI bus operating mode (single-ended, LVD, HVD) Vendor-unique status from external devices Technical Specifications s Power requirements: 3.3 volts +/- 5% 384 mA maximum 60 mA standby Clock frequency of 25 MHz GPIO pins are 5-V tolerant. All status inputs are Schmitt trigger receivers. s s s 33359-580-00 C GEM359 7 QLogic Corporation s s s s s All status inputs can be asynchronous to the GEM359 clock. Requires an external eight-bit, nonvolatile memory device (E/PROM) of 64K or larger Intel or AMD/Fujitsu flash ROM algorithm supported National Semiconductor LM75 (or equivalent) temperature sensor supported 144-pin LQFP package s s s s s s Embedded CPU is reset at power up or optionally by a SCSI bus reset. Code memory is parallel - flash or EPROM. External 16-byte decodes for I/O (chip select pin: CPU_STRB) External interrupt supported Breakpoint registers incorporated Timer output provided The following are trademark acknowledgements: AMD is a trademark of Advanced Micro Devices, Inc. Intel is a trademark of Intel Corporation National is a trademark of National Semiconductor Corporation. All other brand and product names are trademarks or registered trademark of their respective holders. Specifications are subject to change without notice. QLogic is a trademark of QLogic Corporation. (c)October 6, 2000 QLogic Corporation, 26600 Laguna Hills Drive, Aliso Viejo, CA 92656, TEL: (800) 867-7274 or (949) 389-6000 8 GEM359 33359-580-00 C |
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