NAME cpqncr - low-level module for Compaq 32-Bit Fast-Wide SCSI-2 EISA/PCI (825) and Compaq Wide-Ultra SCSI PCI (875) Con- trollers DESCRIPTION The cpqncr module provides low-level interface routines between the common disk/tape I/O subsystem and the Compaq 825/875 SCSI (Small Computer System Interface) controllers. The cpqncr module can be configured for disk and streaming tape support for one or more Compaq 825/875 controllers. Each controller should be the sole initiator on a SCSI bus. Auto configuration code determines if the adapter is present at the configured address and what types of devices are attached to it. CONFIGURATION The driver attempts to initialize itself in accordance with the information found in the configuration file, cpqncr.conf. The relevant user configurable items in this file are as follows: debug_flag This property enables or disables driver debug mes- sages. These messages are not displayed by default. Setting the value to 1 enables debug messages; setting it to 0 disables it. alarm_msg_enable This property enables alarm messages displayed for Storage System faults. Alarm messages are enabled by setting the value to 1 and disabled by setting it to 0. These messages are disabled by default. tag_enable This property enables or disables tag queueing support by the driver. Tagged Queueing is disabled by default. Tagged queueing is enabled by setting the value to 1 and disabled by setting the value to 0. queue_depth This property sets the number of active requests the driver can handle for a controller. The maximum and default value is 37 and the minimum value is 13. This can be decreased for supporting multiple controllers. board_id This property enables support for Compaq SCSI con- trollers other than Compaq 825/875 controllers. The board ID (Vendor and Device ID) must be specified for the driver to support the controller. FILES /kernel/drv/cpqncr.conf configuration file for the cpqncr driver ATTRIBUTES See attributes(5) for descriptions of the following attri- butes: ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |_____________________________|_____________________________| | Architecture | IA | |_____________________________|_____________________________| SEE ALSO driver.conf(4), attributes(5)
Закладки на сайте Проследить за страницей |
Created 1996-2024 by Maxim Chirkov Добавить, Поддержать, Вебмастеру |