BusLogic FlashPoint SCSI 驱动程序

BusLogic FlashPoint SCSI 主机适配器现在在 Linux 上得到完全支持。下面描述的升级程序已于 1997 年 3 月 31 日正式终止，因为它不再需要。

        MYLEX INTRODUCES LINUX OPERATING SYSTEM SUPPORT FOR ITS
            BUSLOGIC FLASHPOINT LINE OF SCSI HOST ADAPTERS


FREMONT, CA, -- October 8, 1996 -- Mylex Corporation has expanded Linux
operating system support to its BusLogic brand of FlashPoint Ultra SCSI
host adapters.  All of BusLogic's other SCSI host adapters, including the
MultiMaster line, currently support the Linux operating system.  Linux
drivers and information will be available on October 15th at
http://sourceforge.net/projects/dandelion/.

"Mylex is committed to supporting the Linux community," says Peter Shambora,
vice president of marketing for Mylex.  "We have supported Linux driver
development and provided technical support for our host adapters for several
years, and are pleased to now make our FlashPoint products available to this
user base."

Linux 操作系统

Linux 是 UNIX 在 Intel x86、Sun SPARC、SGI MIPS、Motorola 68k、Digital Alpha AXP 和 Motorola PowerPC 机器上的免费分发实现。它支持广泛的软件，包括 X Window 系统、Emacs 和 TCP/IP 网络。更多信息请访问 http://www.linux.org 和 http://www.ssc.com/。

FlashPoint 主机适配器

FlashPoint 系列 Ultra SCSI 主机适配器专为工作站和文件服务器环境设计，提供窄通道、宽通道、双通道和双通道宽通道版本。这些适配器采用 SeqEngine 自动化技术，可最大限度地减少 SCSI 命令开销并减少生成到 CPU 的中断次数。

关于 Mylex

Mylex 公司（纳斯达克/NM 代码：MYLX）成立于 1983 年，是 RAID 技术和网络管理产品的领先生产商。该公司为网络服务器、海量存储系统、工作站和系统主板生产高性能磁盘阵列（RAID）控制器以及配套的计算机产品。通过其广泛的 RAID 控制器和 BusLogic 系列 Ultra SCSI 主机适配器产品，Mylex 提供支持智能 I/O 的技术，从而提高网络管理控制、增强 CPU 利用率、优化 I/O 性能并确保数据安全性和可用性。产品通过 OEM、主要分销商、VAR 和系统集成商的全球网络销售。Mylex 公司的总部位于加利福尼亚州弗里蒙特市阿登伍德大道 34551 号。

联系方式：

Peter Shambora
Vice President of Marketing
Mylex Corp.
510/796-6100
[email protected]

                             ANNOUNCEMENT
             BusLogic FlashPoint LT/BT-948 Upgrade Program
                            1 February 1996

                        ADDITIONAL ANNOUNCEMENT
             BusLogic FlashPoint LW/BT-958 Upgrade Program
                             14 June 1996

Ever since its introduction last October, the BusLogic FlashPoint LT has
been problematic for members of the Linux community, in that no Linux
drivers have been available for this new Ultra SCSI product.  Despite its
officially being positioned as a desktop workstation product, and not being
particularly well suited for a high performance multitasking operating
system like Linux, the FlashPoint LT has been touted by computer system
vendors as the latest thing, and has been sold even on many of their high
end systems, to the exclusion of the older MultiMaster products.  This has
caused grief for many people who inadvertently purchased a system expecting
that all BusLogic SCSI Host Adapters were supported by Linux, only to
discover that the FlashPoint was not supported and would not be for quite
some time, if ever.

After this problem was identified, BusLogic contacted its major OEM
customers to make sure the BT-946C/956C MultiMaster cards would still be
made available, and that Linux users who mistakenly ordered systems with
the FlashPoint would be able to upgrade to the BT-946C.  While this helped
many purchasers of new systems, it was only a partial solution to the
overall problem of FlashPoint support for Linux users.  It did nothing to
assist the people who initially purchased a FlashPoint for a supported
operating system and then later decided to run Linux, or those who had
ended up with a FlashPoint LT, believing it was supported, and were unable
to return it.

In the middle of December, I asked to meet with BusLogic's senior
management to discuss the issues related to Linux and free software support
for the FlashPoint.  Rumors of varying accuracy had been circulating
publicly about BusLogic's attitude toward the Linux community, and I felt
it was best that these issues be addressed directly.  I sent an email
message after 11pm one evening, and the meeting took place the next
afternoon.  Unfortunately, corporate wheels sometimes grind slowly,
especially when a company is being acquired, and so it's taken until now
before the details were completely determined and a public statement could
be made.

BusLogic is not prepared at this time to release the information necessary
for third parties to write drivers for the FlashPoint.  The only existing
FlashPoint drivers have been written directly by BusLogic Engineering, and
there is no FlashPoint documentation sufficiently detailed to allow outside
developers to write a driver without substantial assistance.  While there
are people at BusLogic who would rather not release the details of the
FlashPoint architecture at all, that debate has not yet been settled either
way.  In any event, even if documentation were available today it would
take quite a while for a usable driver to be written, especially since I'm
not convinced that the effort required would be worthwhile.

However, BusLogic does remain committed to providing a high performance
SCSI solution for the Linux community, and does not want to see anyone left
unable to run Linux because they have a Flashpoint LT.  Therefore, BusLogic
has put in place a direct upgrade program to allow any Linux user worldwide
to trade in their FlashPoint LT for the new BT-948 MultiMaster PCI Ultra
SCSI Host Adapter.  The BT-948 is the Ultra SCSI successor to the BT-946C
and has all the best features of both the BT-946C and FlashPoint LT,
including smart termination and a flash PROM for easy firmware updates, and
is of course compatible with the present Linux driver.  The price for this
upgrade has been set at US $45 plus shipping and handling, and the upgrade
program will be administered through BusLogic Technical Support, which can
be reached by electronic mail at [email protected], by Voice at +1 408
654-0760, or by FAX at +1 408 492-1542.

As of 14 June 1996, the original BusLogic FlashPoint LT to BT-948 upgrade
program has now been extended to encompass the FlashPoint LW Wide Ultra
SCSI Host Adapter.  Any Linux user worldwide may trade in their FlashPoint
LW (BT-950) for a BT-958 MultiMaster PCI Ultra SCSI Host Adapter.  The
price for this upgrade has been set at US $65 plus shipping and handling.

I was a beta test site for the BT-948/958, and versions 1.2.1 and 1.3.1 of
my BusLogic driver already included latent support for the BT-948/958.
Additional cosmetic support for the Ultra SCSI MultiMaster cards was added
subsequent releases.  As a result of this cooperative testing process,
several firmware bugs were found and corrected.  My heavily loaded Linux
test system provided an ideal environment for testing error recovery
processes that are much more rarely exercised in production systems, but
are crucial to overall system stability.  It was especially convenient
being able to work directly with their firmware engineer in demonstrating
the problems under control of the firmware debugging environment; things
sure have come a long way since the last time I worked on firmware for an
embedded system.  I am presently working on some performance testing and
expect to have some data to report in the not too distant future.

BusLogic asked me to send this announcement since a large percentage of the
questions regarding support for the FlashPoint have either been sent to me
directly via email, or have appeared in the Linux newsgroups in which I
participate.  To summarize, BusLogic is offering Linux users an upgrade
from the unsupported FlashPoint LT (BT-930) to the supported BT-948 for US
$45 plus shipping and handling, or from the unsupported FlashPoint LW
(BT-950) to the supported BT-958 for $65 plus shipping and handling.
Contact BusLogic Technical Support at [email protected] or +1 408
654-0760 to take advantage of their offer.

              Leonard N. Zubkoff
              [email protected]