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Linux Cross Reference
Linux-2.6.17/Documentation/scsi/FlashPoint.txt

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  1 The BusLogic FlashPoint SCSI Host Adapters are now fully supported on Linux.
  2 The upgrade program described below has been officially terminated effective
  3 31 March 1997 since it is no longer needed.
  4 
  5 
  6 
  7           MYLEX INTRODUCES LINUX OPERATING SYSTEM SUPPORT FOR ITS
  8               BUSLOGIC FLASHPOINT LINE OF SCSI HOST ADAPTERS
  9 
 10 
 11 FREMONT, CA, -- October 8, 1996 -- Mylex Corporation has expanded Linux
 12 operating system support to its BusLogic brand of FlashPoint Ultra SCSI
 13 host adapters.  All of BusLogic's other SCSI host adapters, including the
 14 MultiMaster line, currently support the Linux operating system.  Linux
 15 drivers and information will be available on October 15th at
 16 http://www.dandelion.com/Linux/.
 17 
 18 "Mylex is committed to supporting the Linux community," says Peter Shambora,
 19 vice president of marketing for Mylex.  "We have supported Linux driver
 20 development and provided technical support for our host adapters for several
 21 years, and are pleased to now make our FlashPoint products available to this
 22 user base."
 23 
 24 The Linux Operating System
 25 
 26 Linux is a freely-distributed implementation of UNIX for Intel x86, Sun
 27 SPARC, SGI MIPS, Motorola 68k, Digital Alpha AXP and Motorola PowerPC
 28 machines.  It supports a wide range of software, including the X Window
 29 System, Emacs, and TCP/IP networking.  Further information is available at
 30 http://www.linux.org and http://www.ssc.com/linux.
 31 
 32 FlashPoint Host Adapters
 33 
 34 The FlashPoint family of Ultra SCSI host adapters, designed for workstation
 35 and file server environments, are available in narrow, wide, dual channel,
 36 and dual channel wide versions.  These adapters feature SeqEngine
 37 automation technology, which minimizes SCSI command overhead and reduces
 38 the number of interrupts generated to the CPU.
 39 
 40 About Mylex
 41 
 42 Mylex Corporation (NASDAQ/NM SYMBOL: MYLX), founded in 1983, is a leading
 43 producer of RAID technology and network management products.  The company
 44 produces high performance disk array (RAID) controllers, and complementary
 45 computer products for network servers, mass storage systems, workstations
 46 and system boards.  Through its wide range of RAID controllers and its
 47 BusLogic line of Ultra SCSI host adapter products, Mylex provides enabling
 48 intelligent I/O technologies that increase network management control,
 49 enhance CPU utilization, optimize I/O performance, and ensure data security
 50 and availability.  Products are sold globally through a network of OEMs,
 51 major distributors, VARs, and system integrators.  Mylex Corporation is
 52 headquartered at 34551 Ardenwood Blvd., Fremont, CA.
 53 
 54                                    ####
 55 
 56 Contact:
 57 
 58 Peter Shambora
 59 Vice President of Marketing
 60 Mylex Corp.
 61 510/796-6100
 62 peters@mylex.com
 63 
 64                                ANNOUNCEMENT
 65                BusLogic FlashPoint LT/BT-948 Upgrade Program
 66                               1 February 1996
 67 
 68                           ADDITIONAL ANNOUNCEMENT
 69                BusLogic FlashPoint LW/BT-958 Upgrade Program
 70                                14 June 1996
 71 
 72 Ever since its introduction last October, the BusLogic FlashPoint LT has
 73 been problematic for members of the Linux community, in that no Linux
 74 drivers have been available for this new Ultra SCSI product.  Despite it's
 75 officially being positioned as a desktop workstation product, and not being
 76 particularly well suited for a high performance multitasking operating
 77 system like Linux, the FlashPoint LT has been touted by computer system
 78 vendors as the latest thing, and has been sold even on many of their high
 79 end systems, to the exclusion of the older MultiMaster products.  This has
 80 caused grief for many people who inadvertently purchased a system expecting
 81 that all BusLogic SCSI Host Adapters were supported by Linux, only to
 82 discover that the FlashPoint was not supported and would not be for quite
 83 some time, if ever.
 84 
 85 After this problem was identified, BusLogic contacted its major OEM
 86 customers to make sure the BT-946C/956C MultiMaster cards would still be
 87 made available, and that Linux users who mistakenly ordered systems with
 88 the FlashPoint would be able to upgrade to the BT-946C.  While this helped
 89 many purchasers of new systems, it was only a partial solution to the
 90 overall problem of FlashPoint support for Linux users.  It did nothing to
 91 assist the people who initially purchased a FlashPoint for a supported
 92 operating system and then later decided to run Linux, or those who had
 93 ended up with a FlashPoint LT, believing it was supported, and were unable
 94 to return it.
 95 
 96 In the middle of December, I asked to meet with BusLogic's senior
 97 management to discuss the issues related to Linux and free software support
 98 for the FlashPoint.  Rumors of varying accuracy had been circulating
 99 publicly about BusLogic's attitude toward the Linux community, and I felt
100 it was best that these issues be addressed directly.  I sent an email
101 message after 11pm one evening, and the meeting took place the next
102 afternoon.  Unfortunately, corporate wheels sometimes grind slowly,
103 especially when a company is being acquired, and so it's taken until now
104 before the details were completely determined and a public statement could
105 be made.
106 
107 BusLogic is not prepared at this time to release the information necessary
108 for third parties to write drivers for the FlashPoint.  The only existing
109 FlashPoint drivers have been written directly by BusLogic Engineering, and
110 there is no FlashPoint documentation sufficiently detailed to allow outside
111 developers to write a driver without substantial assistance.  While there
112 are people at BusLogic who would rather not release the details of the
113 FlashPoint architecture at all, that debate has not yet been settled either
114 way.  In any event, even if documentation were available today it would
115 take quite a while for a usable driver to be written, especially since I'm
116 not convinced that the effort required would be worthwhile.
117 
118 However, BusLogic does remain committed to providing a high performance
119 SCSI solution for the Linux community, and does not want to see anyone left
120 unable to run Linux because they have a Flashpoint LT.  Therefore, BusLogic
121 has put in place a direct upgrade program to allow any Linux user worldwide
122 to trade in their FlashPoint LT for the new BT-948 MultiMaster PCI Ultra
123 SCSI Host Adapter.  The BT-948 is the Ultra SCSI successor to the BT-946C
124 and has all the best features of both the BT-946C and FlashPoint LT,
125 including smart termination and a flash PROM for easy firmware updates, and
126 is of course compatible with the present Linux driver.  The price for this
127 upgrade has been set at US $45 plus shipping and handling, and the upgrade
128 program will be administered through BusLogic Technical Support, which can
129 be reached by electronic mail at techsup@buslogic.com, by Voice at +1 408
130 654-0760, or by FAX at +1 408 492-1542.
131 
132 As of 14 June 1996, the original BusLogic FlashPoint LT to BT-948 upgrade
133 program has now been extended to encompass the FlashPoint LW Wide Ultra
134 SCSI Host Adapter.  Any Linux user worldwide may trade in their FlashPoint
135 LW (BT-950) for a BT-958 MultiMaster PCI Ultra SCSI Host Adapter.  The
136 price for this upgrade has been set at US $65 plus shipping and handling.
137 
138 I was a beta test site for the BT-948/958, and versions 1.2.1 and 1.3.1 of
139 my BusLogic driver already included latent support for the BT-948/958.
140 Additional cosmetic support for the Ultra SCSI MultiMaster cards was added
141 subsequent releases.  As a result of this cooperative testing process,
142 several firmware bugs were found and corrected.  My heavily loaded Linux
143 test system provided an ideal environment for testing error recovery
144 processes that are much more rarely exercised in production systems, but
145 are crucial to overall system stability.  It was especially convenient
146 being able to work directly with their firmware engineer in demonstrating
147 the problems under control of the firmware debugging environment; things
148 sure have come a long way since the last time I worked on firmware for an
149 embedded system.  I am presently working on some performance testing and
150 expect to have some data to report in the not too distant future.
151 
152 BusLogic asked me to send this announcement since a large percentage of the
153 questions regarding support for the FlashPoint have either been sent to me
154 directly via email, or have appeared in the Linux newsgroups in which I
155 participate.  To summarize, BusLogic is offering Linux users an upgrade
156 from the unsupported FlashPoint LT (BT-930) to the supported BT-948 for US
157 $45 plus shipping and handling, or from the unsupported FlashPoint LW
158 (BT-950) to the supported BT-958 for $65 plus shipping and handling.
159 Contact BusLogic Technical Support at techsup@buslogic.com or +1 408
160 654-0760 to take advantage of their offer.
161 
162                 Leonard N. Zubkoff
163                 lnz@dandelion.com

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