xref: /openbmc/linux/drivers/scsi/Kconfig (revision 270384cc)
1menu "SCSI device support"
2
3config SCSI_MOD
4       tristate
5       default y if SCSI=n || SCSI=y
6       default m if SCSI=m
7
8config RAID_ATTRS
9	tristate "RAID Transport Class"
10	default n
11	depends on BLOCK
12	depends on SCSI_MOD
13	---help---
14	  Provides RAID
15
16config SCSI
17	tristate "SCSI device support"
18	depends on BLOCK
19	select SCSI_DMA if HAS_DMA
20	---help---
21	  If you want to use a SCSI hard disk, SCSI tape drive, SCSI CD-ROM or
22	  any other SCSI device under Linux, say Y and make sure that you know
23	  the name of your SCSI host adapter (the card inside your computer
24	  that "speaks" the SCSI protocol, also called SCSI controller),
25	  because you will be asked for it.
26
27	  You also need to say Y here if you have a device which speaks
28	  the SCSI protocol.  Examples of this include the parallel port
29	  version of the IOMEGA ZIP drive, USB storage devices, Fibre
30	  Channel, and FireWire storage.
31
32	  To compile this driver as a module, choose M here and read
33	  <file:Documentation/scsi/scsi.txt>.
34	  The module will be called scsi_mod.
35
36	  However, do not compile this as a module if your root file system
37	  (the one containing the directory /) is located on a SCSI device.
38
39config SCSI_DMA
40	bool
41	default n
42
43config SCSI_NETLINK
44	bool
45	default	n
46	depends on NET
47
48config SCSI_MQ_DEFAULT
49	bool "SCSI: use blk-mq I/O path by default"
50	depends on SCSI
51	---help---
52	  This option enables the new blk-mq based I/O path for SCSI
53	  devices by default.  With the option the scsi_mod.use_blk_mq
54	  module/boot option defaults to Y, without it to N, but it can
55	  still be overriden either way.
56
57	  If unsure say N.
58
59config SCSI_PROC_FS
60	bool "legacy /proc/scsi/ support"
61	depends on SCSI && PROC_FS
62	default y
63	---help---
64	  This option enables support for the various files in
65	  /proc/scsi.  In Linux 2.6 this has been superseded by
66	  files in sysfs but many legacy applications rely on this.
67
68	  If unsure say Y.
69
70comment "SCSI support type (disk, tape, CD-ROM)"
71	depends on SCSI
72
73config BLK_DEV_SD
74	tristate "SCSI disk support"
75	depends on SCSI
76	---help---
77	  If you want to use SCSI hard disks, Fibre Channel disks,
78	  Serial ATA (SATA) or Parallel ATA (PATA) hard disks,
79	  USB storage or the SCSI or parallel port version of
80	  the IOMEGA ZIP drive, say Y and read the SCSI-HOWTO,
81	  the Disk-HOWTO and the Multi-Disk-HOWTO, available from
82	  <http://www.tldp.org/docs.html#howto>. This is NOT for SCSI
83	  CD-ROMs.
84
85	  To compile this driver as a module, choose M here and read
86	  <file:Documentation/scsi/scsi.txt>.
87	  The module will be called sd_mod.
88
89	  Do not compile this driver as a module if your root file system
90	  (the one containing the directory /) is located on a SCSI disk.
91	  In this case, do not compile the driver for your SCSI host adapter
92	  (below) as a module either.
93
94config CHR_DEV_ST
95	tristate "SCSI tape support"
96	depends on SCSI
97	---help---
98	  If you want to use a SCSI tape drive under Linux, say Y and read the
99	  SCSI-HOWTO, available from
100	  <http://www.tldp.org/docs.html#howto>, and
101	  <file:Documentation/scsi/st.txt> in the kernel source.  This is NOT
102	  for SCSI CD-ROMs.
103
104	  To compile this driver as a module, choose M here and read
105	  <file:Documentation/scsi/scsi.txt>. The module will be called st.
106
107config CHR_DEV_OSST
108	tristate "SCSI OnStream SC-x0 tape support"
109	depends on SCSI
110	---help---
111	  The OnStream SC-x0 SCSI tape drives cannot be driven by the
112	  standard st driver, but instead need this special osst driver and
113	  use the  /dev/osstX char device nodes (major 206).  Via usb-storage,
114	  you may be able to drive the USB-x0 and DI-x0 drives as well.
115	  Note that there is also a second generation of OnStream
116	  tape drives (ADR-x0) that supports the standard SCSI-2 commands for
117	  tapes (QIC-157) and can be driven by the standard driver st.
118	  For more information, you may have a look at the SCSI-HOWTO
119	  <http://www.tldp.org/docs.html#howto>  and
120	  <file:Documentation/scsi/osst.txt>  in the kernel source.
121	  More info on the OnStream driver may be found on
122	  <http://sourceforge.net/projects/osst/>
123	  Please also have a look at the standard st docu, as most of it
124	  applies to osst as well.
125
126	  To compile this driver as a module, choose M here and read
127	  <file:Documentation/scsi/scsi.txt>. The module will be called osst.
128
129config BLK_DEV_SR
130	tristate "SCSI CDROM support"
131	depends on SCSI
132	---help---
133	  If you want to use a CD or DVD drive attached to your computer
134	  by SCSI, FireWire, USB or ATAPI, say Y and read the SCSI-HOWTO
135	  and the CDROM-HOWTO at <http://www.tldp.org/docs.html#howto>.
136
137	  Make sure to say Y or M to "ISO 9660 CD-ROM file system support".
138
139	  To compile this driver as a module, choose M here and read
140	  <file:Documentation/scsi/scsi.txt>.
141	  The module will be called sr_mod.
142
143config BLK_DEV_SR_VENDOR
144	bool "Enable vendor-specific extensions (for SCSI CDROM)"
145	depends on BLK_DEV_SR
146	help
147	  This enables the usage of vendor specific SCSI commands. This is
148	  required to support multisession CDs with old NEC/TOSHIBA cdrom
149	  drives (and HP Writers). If you have such a drive and get the first
150	  session only, try saying Y here; everybody else says N.
151
152config CHR_DEV_SG
153	tristate "SCSI generic support"
154	depends on SCSI
155	---help---
156	  If you want to use SCSI scanners, synthesizers or CD-writers or just
157	  about anything having "SCSI" in its name other than hard disks,
158	  CD-ROMs or tapes, say Y here. These won't be supported by the kernel
159	  directly, so you need some additional software which knows how to
160	  talk to these devices using the SCSI protocol:
161
162	  For scanners, look at SANE (<http://www.sane-project.org/>). For CD
163	  writer software look at Cdrtools
164	  (<http://cdrecord.berlios.de/private/cdrecord.html>)
165	  and for burning a "disk at once": CDRDAO
166	  (<http://cdrdao.sourceforge.net/>). Cdparanoia is a high
167	  quality digital reader of audio CDs (<http://www.xiph.org/paranoia/>).
168	  For other devices, it's possible that you'll have to write the
169	  driver software yourself. Please read the file
170	  <file:Documentation/scsi/scsi-generic.txt> for more information.
171
172	  To compile this driver as a module, choose M here and read
173	  <file:Documentation/scsi/scsi.txt>. The module will be called sg.
174
175	  If unsure, say N.
176
177config CHR_DEV_SCH
178	tristate "SCSI media changer support"
179	depends on SCSI
180	---help---
181	  This is a driver for SCSI media changers.  Most common devices are
182	  tape libraries and MOD/CDROM jukeboxes.  *Real* jukeboxes, you
183	  don't need this for those tiny 6-slot cdrom changers.  Media
184	  changers are listed as "Type: Medium Changer" in /proc/scsi/scsi.
185	  If you have such hardware and want to use it with linux, say Y
186	  here.  Check <file:Documentation/scsi/scsi-changer.txt> for details.
187
188	  If you want to compile this as a module ( = code which can be
189	  inserted in and removed from the running kernel whenever you want),
190	  say M here and read <file:Documentation/kbuild/modules.txt> and
191	  <file:Documentation/scsi/scsi.txt>. The module will be called ch.o.
192	  If unsure, say N.
193
194config SCSI_ENCLOSURE
195	tristate "SCSI Enclosure Support"
196	depends on SCSI && ENCLOSURE_SERVICES
197	help
198	  Enclosures are devices sitting on or in SCSI backplanes that
199	  manage devices.  If you have a disk cage, the chances are that
200	  it has an enclosure device.  Selecting this option will just allow
201	  certain enclosure conditions to be reported and is not required.
202
203config SCSI_CONSTANTS
204	bool "Verbose SCSI error reporting (kernel size +=12K)"
205	depends on SCSI
206	help
207	  The error messages regarding your SCSI hardware will be easier to
208	  understand if you say Y here; it will enlarge your kernel by about
209	  12 KB. If in doubt, say Y.
210
211config SCSI_LOGGING
212	bool "SCSI logging facility"
213	depends on SCSI
214	---help---
215	  This turns on a logging facility that can be used to debug a number
216	  of SCSI related problems.
217
218	  If you say Y here, no logging output will appear by default, but you
219	  can enable logging by saying Y to "/proc file system support" and
220	  "Sysctl support" below and executing the command
221
222	  echo <bitmask> > /proc/sys/dev/scsi/logging_level
223
224	  where <bitmask> is a four byte value representing the logging type
225	  and logging level for each type of logging selected.
226
227	  There are a number of logging types and you can find them in the
228	  source at <file:drivers/scsi/scsi_logging.h>. The logging levels
229	  are also described in that file and they determine the verbosity of
230	  the logging for each logging type.
231
232	  If you say N here, it may be harder to track down some types of SCSI
233	  problems. If you say Y here your kernel will be somewhat larger, but
234	  there should be no noticeable performance impact as long as you have
235	  logging turned off.
236
237config SCSI_SCAN_ASYNC
238	bool "Asynchronous SCSI scanning"
239	depends on SCSI
240	help
241	  The SCSI subsystem can probe for devices while the rest of the
242	  system continues booting, and even probe devices on different
243	  busses in parallel, leading to a significant speed-up.
244
245	  If you have built SCSI as modules, enabling this option can
246	  be a problem as the devices may not have been found by the
247	  time your system expects them to have been.  You can load the
248	  scsi_wait_scan module to ensure that all scans have completed.
249	  If you build your SCSI drivers into the kernel, then everything
250	  will work fine if you say Y here.
251
252	  You can override this choice by specifying "scsi_mod.scan=sync"
253	  or async on the kernel's command line.
254
255	  Note that this setting also affects whether resuming from
256	  system suspend will be performed asynchronously.
257
258menu "SCSI Transports"
259	depends on SCSI
260
261config SCSI_SPI_ATTRS
262	tristate "Parallel SCSI (SPI) Transport Attributes"
263	depends on SCSI
264	help
265	  If you wish to export transport-specific information about
266	  each attached SCSI device to sysfs, say Y.  Otherwise, say N.
267
268config SCSI_FC_ATTRS
269	tristate "FiberChannel Transport Attributes"
270	depends on SCSI && NET
271	select SCSI_NETLINK
272	help
273	  If you wish to export transport-specific information about
274	  each attached FiberChannel device to sysfs, say Y.
275	  Otherwise, say N.
276
277config SCSI_ISCSI_ATTRS
278	tristate "iSCSI Transport Attributes"
279	depends on SCSI && NET
280	select BLK_DEV_BSGLIB
281	help
282	  If you wish to export transport-specific information about
283	  each attached iSCSI device to sysfs, say Y.
284	  Otherwise, say N.
285
286config SCSI_SAS_ATTRS
287	tristate "SAS Transport Attributes"
288	depends on SCSI
289	select BLK_DEV_BSG
290	help
291	  If you wish to export transport-specific information about
292	  each attached SAS device to sysfs, say Y.
293
294source "drivers/scsi/libsas/Kconfig"
295
296config SCSI_SRP_ATTRS
297	tristate "SRP Transport Attributes"
298	depends on SCSI
299	help
300	  If you wish to export transport-specific information about
301	  each attached SRP device to sysfs, say Y.
302
303endmenu
304
305menuconfig SCSI_LOWLEVEL
306	bool "SCSI low-level drivers"
307	depends on SCSI!=n
308	default y
309
310if SCSI_LOWLEVEL && SCSI
311
312config ISCSI_TCP
313	tristate "iSCSI Initiator over TCP/IP"
314	depends on SCSI && INET
315	select CRYPTO
316	select CRYPTO_MD5
317	select CRYPTO_CRC32C
318	select SCSI_ISCSI_ATTRS
319	help
320	 The iSCSI Driver provides a host with the ability to access storage
321	 through an IP network. The driver uses the iSCSI protocol to transport
322	 SCSI requests and responses over a TCP/IP network between the host
323	 (the "initiator") and "targets".  Architecturally, the iSCSI driver
324	 combines with the host's TCP/IP stack, network drivers, and Network
325	 Interface Card (NIC) to provide the same functions as a SCSI or a
326	 Fibre Channel (FC) adapter driver with a Host Bus Adapter (HBA).
327
328	 To compile this driver as a module, choose M here: the
329	 module will be called iscsi_tcp.
330
331	 The userspace component needed to initialize the driver, documentation,
332	 and sample configuration files can be found here:
333
334	 http://open-iscsi.org
335
336config ISCSI_BOOT_SYSFS
337	tristate "iSCSI Boot Sysfs Interface"
338	default	n
339	help
340	  This option enables support for exposing iSCSI boot information
341	  via sysfs to userspace. If you wish to export this information,
342	  say Y. Otherwise, say N.
343
344source "drivers/scsi/cxgbi/Kconfig"
345source "drivers/scsi/bnx2i/Kconfig"
346source "drivers/scsi/bnx2fc/Kconfig"
347source "drivers/scsi/be2iscsi/Kconfig"
348
349config SGIWD93_SCSI
350	tristate "SGI WD93C93 SCSI Driver"
351	depends on SGI_HAS_WD93 && SCSI
352  	help
353	  If you have a Western Digital WD93 SCSI controller on
354	  an SGI MIPS system, say Y.  Otherwise, say N.
355
356config BLK_DEV_3W_XXXX_RAID
357	tristate "3ware 5/6/7/8xxx ATA-RAID support"
358	depends on PCI && SCSI
359	help
360	  3ware is the only hardware ATA-Raid product in Linux to date.
361	  This card is 2,4, or 8 channel master mode support only.
362	  SCSI support required!!!
363
364	  <http://www.3ware.com/>
365
366	  Please read the comments at the top of
367	  <file:drivers/scsi/3w-xxxx.c>.
368
369config SCSI_HPSA
370	tristate "HP Smart Array SCSI driver"
371	depends on PCI && SCSI
372	select CHECK_SIGNATURE
373	help
374	  This driver supports HP Smart Array Controllers (circa 2009).
375	  It is a SCSI alternative to the cciss driver, which is a block
376	  driver.  Anyone wishing to use HP Smart Array controllers who
377	  would prefer the devices be presented to linux as SCSI devices,
378	  rather than as generic block devices should say Y here.
379
380config SCSI_3W_9XXX
381	tristate "3ware 9xxx SATA-RAID support"
382	depends on PCI && SCSI
383	help
384	  This driver supports the 9000 series 3ware SATA-RAID cards.
385
386	  <http://www.amcc.com>
387
388	  Please read the comments at the top of
389	  <file:drivers/scsi/3w-9xxx.c>.
390
391config SCSI_3W_SAS
392	tristate "3ware 97xx SAS/SATA-RAID support"
393	depends on PCI && SCSI
394	help
395	  This driver supports the LSI 3ware 9750 6Gb/s SAS/SATA-RAID cards.
396
397	  <http://www.lsi.com>
398
399	  Please read the comments at the top of
400	  <file:drivers/scsi/3w-sas.c>.
401
402config SCSI_7000FASST
403	tristate "7000FASST SCSI support"
404	depends on ISA && SCSI && ISA_DMA_API
405	select CHECK_SIGNATURE
406	help
407	  This driver supports the Western Digital 7000 SCSI host adapter
408	  family.  Some information is in the source:
409	  <file:drivers/scsi/wd7000.c>.
410
411	  To compile this driver as a module, choose M here: the
412	  module will be called wd7000.
413
414config SCSI_ACARD
415	tristate "ACARD SCSI support"
416	depends on PCI && SCSI
417	help
418	  This driver supports the ACARD SCSI host adapter.
419	  Support Chip <ATP870 ATP876 ATP880 ATP885>
420	  To compile this driver as a module, choose M here: the
421	  module will be called atp870u.
422
423config SCSI_AHA152X
424	tristate "Adaptec AHA152X/2825 support"
425	depends on ISA && SCSI
426	select SCSI_SPI_ATTRS
427	select CHECK_SIGNATURE
428	---help---
429	  This is a driver for the AHA-1510, AHA-1520, AHA-1522, and AHA-2825
430	  SCSI host adapters. It also works for the AVA-1505, but the IRQ etc.
431	  must be manually specified in this case.
432
433	  It is explained in section 3.3 of the SCSI-HOWTO, available from
434	  <http://www.tldp.org/docs.html#howto>. You might also want to
435	  read the file <file:Documentation/scsi/aha152x.txt>.
436
437	  To compile this driver as a module, choose M here: the
438	  module will be called aha152x.
439
440config SCSI_AHA1542
441	tristate "Adaptec AHA1542 support"
442	depends on ISA && SCSI && ISA_DMA_API
443	---help---
444	  This is support for a SCSI host adapter.  It is explained in section
445	  3.4 of the SCSI-HOWTO, available from
446	  <http://www.tldp.org/docs.html#howto>.  Note that Trantor was
447	  purchased by Adaptec, and some former Trantor products are being
448	  sold under the Adaptec name.  If it doesn't work out of the box, you
449	  may have to change some settings in <file:drivers/scsi/aha1542.h>.
450
451	  To compile this driver as a module, choose M here: the
452	  module will be called aha1542.
453
454config SCSI_AHA1740
455	tristate "Adaptec AHA1740 support"
456	depends on EISA && SCSI
457	---help---
458	  This is support for a SCSI host adapter.  It is explained in section
459	  3.5 of the SCSI-HOWTO, available from
460	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
461	  of the box, you may have to change some settings in
462	  <file:drivers/scsi/aha1740.h>.
463
464	  To compile this driver as a module, choose M here: the
465	  module will be called aha1740.
466
467config SCSI_AACRAID
468	tristate "Adaptec AACRAID support"
469	depends on SCSI && PCI
470	help
471	  This driver supports a variety of Dell, HP, Adaptec, IBM and
472	  ICP storage products. For a list of supported products, refer
473	  to <file:Documentation/scsi/aacraid.txt>.
474
475	  To compile this driver as a module, choose M here: the module
476	  will be called aacraid.
477
478
479source "drivers/scsi/aic7xxx/Kconfig.aic7xxx"
480source "drivers/scsi/aic7xxx/Kconfig.aic79xx"
481source "drivers/scsi/aic94xx/Kconfig"
482source "drivers/scsi/mvsas/Kconfig"
483
484config SCSI_MVUMI
485	tristate "Marvell UMI driver"
486	depends on SCSI && PCI
487	help
488	  Module for Marvell Universal Message Interface(UMI) driver
489
490	  To compile this driver as a module, choose M here: the
491	  module will be called mvumi.
492
493config SCSI_DPT_I2O
494	tristate "Adaptec I2O RAID support "
495	depends on SCSI && PCI && VIRT_TO_BUS
496	help
497	  This driver supports all of Adaptec's I2O based RAID controllers as
498	  well as the DPT SmartRaid V cards.  This is an Adaptec maintained
499	  driver by Deanna Bonds.  See <file:Documentation/scsi/dpti.txt>.
500
501	  To compile this driver as a module, choose M here: the
502	  module will be called dpt_i2o.
503
504config SCSI_ADVANSYS
505	tristate "AdvanSys SCSI support"
506	depends on SCSI && VIRT_TO_BUS && !ARM
507	depends on ISA || EISA || PCI
508	help
509	  This is a driver for all SCSI host adapters manufactured by
510	  AdvanSys. It is documented in the kernel source in
511	  <file:drivers/scsi/advansys.c>.
512
513	  To compile this driver as a module, choose M here: the
514	  module will be called advansys.
515
516config SCSI_IN2000
517	tristate "Always IN2000 SCSI support"
518	depends on ISA && SCSI
519	help
520	  This is support for an ISA bus SCSI host adapter.  You'll find more
521	  information in <file:Documentation/scsi/in2000.txt>. If it doesn't work
522	  out of the box, you may have to change the jumpers for IRQ or
523	  address selection.
524
525	  To compile this driver as a module, choose M here: the
526	  module will be called in2000.
527
528config SCSI_ARCMSR
529	tristate "ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID Host Adapter"
530	depends on PCI && SCSI
531	help
532	  This driver supports all of ARECA's SATA/SAS RAID controller cards.
533	  This is an ARECA-maintained driver by Erich Chen.
534	  If you have any problems, please mail to: <erich@areca.com.tw>.
535	  Areca supports Linux RAID config tools.
536	  Please link <http://www.areca.com.tw>
537
538	  To compile this driver as a module, choose M here: the
539	  module will be called arcmsr (modprobe arcmsr).
540
541source "drivers/scsi/esas2r/Kconfig"
542source "drivers/scsi/megaraid/Kconfig.megaraid"
543source "drivers/scsi/mpt2sas/Kconfig"
544source "drivers/scsi/mpt3sas/Kconfig"
545source "drivers/scsi/ufs/Kconfig"
546
547config SCSI_HPTIOP
548	tristate "HighPoint RocketRAID 3xxx/4xxx Controller support"
549	depends on SCSI && PCI
550	help
551	  This option enables support for HighPoint RocketRAID 3xxx/4xxx
552	  controllers.
553
554	  To compile this driver as a module, choose M here; the module
555	  will be called hptiop. If unsure, say N.
556
557config SCSI_BUSLOGIC
558	tristate "BusLogic SCSI support"
559	depends on (PCI || ISA || MCA) && SCSI && ISA_DMA_API && VIRT_TO_BUS
560	---help---
561	  This is support for BusLogic MultiMaster and FlashPoint SCSI Host
562	  Adapters. Consult the SCSI-HOWTO, available from
563	  <http://www.tldp.org/docs.html#howto>, and the files
564	  <file:Documentation/scsi/BusLogic.txt> and
565	  <file:Documentation/scsi/FlashPoint.txt> for more information.
566	  Note that support for FlashPoint is only available for 32-bit
567	  x86 configurations.
568
569	  To compile this driver as a module, choose M here: the
570	  module will be called BusLogic.
571
572config SCSI_FLASHPOINT
573	bool "FlashPoint support"
574	depends on SCSI_BUSLOGIC && PCI
575	help
576	  This option allows you to add FlashPoint support to the
577	  BusLogic SCSI driver. The FlashPoint SCCB Manager code is
578	  substantial, so users of MultiMaster Host Adapters may not
579	  wish to include it.
580
581config VMWARE_PVSCSI
582	tristate "VMware PVSCSI driver support"
583	depends on PCI && SCSI && X86
584	help
585	  This driver supports VMware's para virtualized SCSI HBA.
586	  To compile this driver as a module, choose M here: the
587	  module will be called vmw_pvscsi.
588
589config XEN_SCSI_FRONTEND
590	tristate "XEN SCSI frontend driver"
591	depends on SCSI && XEN
592	select XEN_XENBUS_FRONTEND
593	help
594	  The XEN SCSI frontend driver allows the kernel to access SCSI Devices
595	  within another guest OS (usually Dom0).
596	  Only needed if the kernel is running in a XEN guest and generic
597	  SCSI access to a device is needed.
598
599config HYPERV_STORAGE
600	tristate "Microsoft Hyper-V virtual storage driver"
601	depends on SCSI && HYPERV
602	default HYPERV
603	help
604	  Select this option to enable the Hyper-V virtual storage driver.
605
606config LIBFC
607	tristate "LibFC module"
608	depends on SCSI_FC_ATTRS
609	select CRC32
610	---help---
611	  Fibre Channel library module
612
613config LIBFCOE
614	tristate "LibFCoE module"
615	depends on LIBFC
616	---help---
617	  Library for Fibre Channel over Ethernet module
618
619config FCOE
620	tristate "FCoE module"
621	depends on PCI
622	depends on LIBFCOE
623	---help---
624	  Fibre Channel over Ethernet module
625
626config FCOE_FNIC
627	tristate "Cisco FNIC Driver"
628	depends on PCI && X86
629	depends on LIBFCOE
630	help
631	  This is support for the Cisco PCI-Express FCoE HBA.
632
633	  To compile this driver as a module, choose M here and read
634	  <file:Documentation/scsi/scsi.txt>.
635	  The module will be called fnic.
636
637config SCSI_DMX3191D
638	tristate "DMX3191D SCSI support"
639	depends on PCI && SCSI
640	select SCSI_SPI_ATTRS
641	help
642	  This is support for Domex DMX3191D SCSI Host Adapters.
643
644	  To compile this driver as a module, choose M here: the
645	  module will be called dmx3191d.
646
647config SCSI_DTC3280
648	tristate "DTC3180/3280 SCSI support"
649	depends on ISA && SCSI
650	select SCSI_SPI_ATTRS
651	select CHECK_SIGNATURE
652	help
653	  This is support for DTC 3180/3280 SCSI Host Adapters.  Please read
654	  the SCSI-HOWTO, available from
655	  <http://www.tldp.org/docs.html#howto>, and the file
656	  <file:Documentation/scsi/dtc3x80.txt>.
657
658	  To compile this driver as a module, choose M here: the
659	  module will be called dtc.
660
661config SCSI_EATA
662	tristate "EATA ISA/EISA/PCI (DPT and generic EATA/DMA-compliant boards) support"
663	depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
664	---help---
665	  This driver supports all EATA/DMA-compliant SCSI host adapters.  DPT
666	  ISA and all EISA I/O addresses are probed looking for the "EATA"
667	  signature. The addresses of all the PCI SCSI controllers reported
668          by the PCI subsystem are probed as well.
669
670	  You want to read the start of <file:drivers/scsi/eata.c> and the
671	  SCSI-HOWTO, available from
672	  <http://www.tldp.org/docs.html#howto>.
673
674	  To compile this driver as a module, choose M here: the
675	  module will be called eata.
676
677config SCSI_EATA_TAGGED_QUEUE
678	bool "enable tagged command queueing"
679	depends on SCSI_EATA
680	help
681	  This is a feature of SCSI-2 which improves performance: the host
682	  adapter can send several SCSI commands to a device's queue even if
683	  previous commands haven't finished yet.
684	  This is equivalent to the "eata=tc:y" boot option.
685
686config SCSI_EATA_LINKED_COMMANDS
687	bool "enable elevator sorting"
688	depends on SCSI_EATA
689	help
690	  This option enables elevator sorting for all probed SCSI disks and
691	  CD-ROMs. It definitely reduces the average seek distance when doing
692	  random seeks, but this does not necessarily result in a noticeable
693	  performance improvement: your mileage may vary...
694	  This is equivalent to the "eata=lc:y" boot option.
695
696config SCSI_EATA_MAX_TAGS
697	int "maximum number of queued commands"
698	depends on SCSI_EATA
699	default "16"
700	help
701	  This specifies how many SCSI commands can be maximally queued for
702	  each probed SCSI device. You should reduce the default value of 16
703	  only if you have disks with buggy or limited tagged command support.
704	  Minimum is 2 and maximum is 62. This value is also the window size
705	  used by the elevator sorting option above. The effective value used
706	  by the driver for each probed SCSI device is reported at boot time.
707	  This is equivalent to the "eata=mq:8" boot option.
708
709config SCSI_EATA_PIO
710	tristate "EATA-PIO (old DPT PM2001, PM2012A) support"
711	depends on (ISA || EISA || PCI) && SCSI && BROKEN
712	---help---
713	  This driver supports all EATA-PIO protocol compliant SCSI Host
714	  Adapters like the DPT PM2001 and the PM2012A.  EATA-DMA compliant
715	  host adapters could also use this driver but are discouraged from
716	  doing so, since this driver only supports hard disks and lacks
717	  numerous features.  You might want to have a look at the SCSI-HOWTO,
718	  available from <http://www.tldp.org/docs.html#howto>.
719
720	  To compile this driver as a module, choose M here: the
721	  module will be called eata_pio.
722
723config SCSI_FUTURE_DOMAIN
724	tristate "Future Domain 16xx SCSI/AHA-2920A support"
725	depends on (ISA || PCI) && SCSI
726	select CHECK_SIGNATURE
727	---help---
728	  This is support for Future Domain's 16-bit SCSI host adapters
729	  (TMC-1660/1680, TMC-1650/1670, TMC-3260, TMC-1610M/MER/MEX) and
730	  other adapters based on the Future Domain chipsets (Quantum
731	  ISA-200S, ISA-250MG; Adaptec AHA-2920A; and at least one IBM board).
732	  It is explained in section 3.7 of the SCSI-HOWTO, available from
733	  <http://www.tldp.org/docs.html#howto>.
734
735	  NOTE: Newer Adaptec AHA-2920C boards use the Adaptec AIC-7850 chip
736	  and should use the aic7xxx driver ("Adaptec AIC7xxx chipset SCSI
737	  controller support"). This Future Domain driver works with the older
738	  Adaptec AHA-2920A boards with a Future Domain chip on them.
739
740	  To compile this driver as a module, choose M here: the
741	  module will be called fdomain.
742
743config SCSI_GDTH
744	tristate "Intel/ICP (former GDT SCSI Disk Array) RAID Controller support"
745	depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
746	---help---
747	  Formerly called GDT SCSI Disk Array Controller Support.
748
749	  This is a driver for RAID/SCSI Disk Array Controllers (EISA/ISA/PCI)
750	  manufactured by Intel Corporation/ICP vortex GmbH. It is documented
751	  in the kernel source in <file:drivers/scsi/gdth.c> and
752	  <file:drivers/scsi/gdth.h>.
753
754	  To compile this driver as a module, choose M here: the
755	  module will be called gdth.
756
757config SCSI_ISCI
758	tristate "Intel(R) C600 Series Chipset SAS Controller"
759	depends on PCI && SCSI
760	depends on X86
761	select SCSI_SAS_LIBSAS
762	---help---
763	  This driver supports the 6Gb/s SAS capabilities of the storage
764	  control unit found in the Intel(R) C600 series chipset.
765
766config SCSI_GENERIC_NCR5380
767	tristate "Generic NCR5380/53c400 SCSI PIO support"
768	depends on ISA && SCSI
769	select SCSI_SPI_ATTRS
770	---help---
771	  This is a driver for the old NCR 53c80 series of SCSI controllers
772	  on boards using PIO. Most boards such as the Trantor T130 fit this
773	  category, along with a large number of ISA 8bit controllers shipped
774	  for free with SCSI scanners. If you have a PAS16, T128 or DMX3191
775	  you should select the specific driver for that card rather than
776	  generic 5380 support.
777
778	  It is explained in section 3.8 of the SCSI-HOWTO, available from
779	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
780	  of the box, you may have to change some settings in
781	  <file:drivers/scsi/g_NCR5380.h>.
782
783	  To compile this driver as a module, choose M here: the
784	  module will be called g_NCR5380.
785
786config SCSI_GENERIC_NCR5380_MMIO
787	tristate "Generic NCR5380/53c400 SCSI MMIO support"
788	depends on ISA && SCSI
789	select SCSI_SPI_ATTRS
790	---help---
791	  This is a driver for the old NCR 53c80 series of SCSI controllers
792	  on boards using memory mapped I/O.
793	  It is explained in section 3.8 of the SCSI-HOWTO, available from
794	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
795	  of the box, you may have to change some settings in
796	  <file:drivers/scsi/g_NCR5380.h>.
797
798	  To compile this driver as a module, choose M here: the
799	  module will be called g_NCR5380_mmio.
800
801config SCSI_GENERIC_NCR53C400
802	bool "Enable NCR53c400 extensions"
803	depends on SCSI_GENERIC_NCR5380
804	help
805	  This enables certain optimizations for the NCR53c400 SCSI cards.
806	  You might as well try it out.  Note that this driver will only probe
807	  for the Trantor T130B in its default configuration; you might have
808	  to pass a command line option to the kernel at boot time if it does
809	  not detect your card.  See the file
810	  <file:Documentation/scsi/g_NCR5380.txt> for details.
811
812config SCSI_IPS
813	tristate "IBM ServeRAID support"
814	depends on PCI && SCSI
815	---help---
816	  This is support for the IBM ServeRAID hardware RAID controllers.
817	  See <http://www.developer.ibm.com/welcome/netfinity/serveraid.html>
818	  and <http://www-947.ibm.com/support/entry/portal/docdisplay?brand=5000008&lndocid=SERV-RAID>
819	  for more information.  If this driver does not work correctly
820	  without modification please contact the author by email at
821	  <ipslinux@adaptec.com>.
822
823	  To compile this driver as a module, choose M here: the
824	  module will be called ips.
825
826config SCSI_IBMVSCSI
827	tristate "IBM Virtual SCSI support"
828	depends on PPC_PSERIES
829	select SCSI_SRP_ATTRS
830	help
831	  This is the IBM POWER Virtual SCSI Client
832
833	  To compile this driver as a module, choose M here: the
834	  module will be called ibmvscsi.
835
836config SCSI_IBMVFC
837	tristate "IBM Virtual FC support"
838	depends on PPC_PSERIES && SCSI
839	depends on SCSI_FC_ATTRS
840	help
841	  This is the IBM POWER Virtual FC Client
842
843	  To compile this driver as a module, choose M here: the
844	  module will be called ibmvfc.
845
846config SCSI_IBMVFC_TRACE
847	bool "enable driver internal trace"
848	depends on SCSI_IBMVFC
849	default y
850	help
851	  If you say Y here, the driver will trace all commands issued
852	  to the adapter. Performance impact is minimal. Trace can be
853	  dumped using /sys/class/scsi_host/hostXX/trace.
854
855config SCSI_INITIO
856	tristate "Initio 9100U(W) support"
857	depends on PCI && SCSI
858	help
859	  This is support for the Initio 91XXU(W) SCSI host adapter.  Please
860	  read the SCSI-HOWTO, available from
861	  <http://www.tldp.org/docs.html#howto>.
862
863	  To compile this driver as a module, choose M here: the
864	  module will be called initio.
865
866config SCSI_INIA100
867	tristate "Initio INI-A100U2W support"
868	depends on PCI && SCSI
869	help
870	  This is support for the Initio INI-A100U2W SCSI host adapter.
871	  Please read the SCSI-HOWTO, available from
872	  <http://www.tldp.org/docs.html#howto>.
873
874	  To compile this driver as a module, choose M here: the
875	  module will be called a100u2w.
876
877config SCSI_PPA
878	tristate "IOMEGA parallel port (ppa - older drives)"
879	depends on SCSI && PARPORT_PC
880	---help---
881	  This driver supports older versions of IOMEGA's parallel port ZIP
882	  drive (a 100 MB removable media device).
883
884	  Note that you can say N here if you have the SCSI version of the ZIP
885	  drive: it will be supported automatically if you said Y to the
886	  generic "SCSI disk support", above.
887
888	  If you have the ZIP Plus drive or a more recent parallel port ZIP
889	  drive (if the supplied cable with the drive is labeled "AutoDetect")
890	  then you should say N here and Y to "IOMEGA parallel port (imm -
891	  newer drives)", below.
892
893	  For more information about this driver and how to use it you should
894	  read the file <file:Documentation/scsi/ppa.txt>.  You should also read
895	  the SCSI-HOWTO, which is available from
896	  <http://www.tldp.org/docs.html#howto>.  If you use this driver,
897	  you will still be able to use the parallel port for other tasks,
898	  such as a printer; it is safe to compile both drivers into the
899	  kernel.
900
901	  To compile this driver as a module, choose M here: the
902	  module will be called ppa.
903
904config SCSI_IMM
905	tristate "IOMEGA parallel port (imm - newer drives)"
906	depends on SCSI && PARPORT_PC
907	---help---
908	  This driver supports newer versions of IOMEGA's parallel port ZIP
909	  drive (a 100 MB removable media device).
910
911	  Note that you can say N here if you have the SCSI version of the ZIP
912	  drive: it will be supported automatically if you said Y to the
913	  generic "SCSI disk support", above.
914
915	  If you have the ZIP Plus drive or a more recent parallel port ZIP
916	  drive (if the supplied cable with the drive is labeled "AutoDetect")
917	  then you should say Y here; if you have an older ZIP drive, say N
918	  here and Y to "IOMEGA Parallel Port (ppa - older drives)", above.
919
920	  For more information about this driver and how to use it you should
921	  read the file <file:Documentation/scsi/ppa.txt>.  You should also read
922	  the SCSI-HOWTO, which is available from
923	  <http://www.tldp.org/docs.html#howto>.  If you use this driver,
924	  you will still be able to use the parallel port for other tasks,
925	  such as a printer; it is safe to compile both drivers into the
926	  kernel.
927
928	  To compile this driver as a module, choose M here: the
929	  module will be called imm.
930
931config SCSI_IZIP_EPP16
932	bool "ppa/imm option - Use slow (but safe) EPP-16"
933	depends on SCSI_PPA || SCSI_IMM
934	---help---
935	  EPP (Enhanced Parallel Port) is a standard for parallel ports which
936	  allows them to act as expansion buses that can handle up to 64
937	  peripheral devices.
938
939	  Some parallel port chipsets are slower than their motherboard, and
940	  so we have to control the state of the chipset's FIFO queue every
941	  now and then to avoid data loss. This will be done if you say Y
942	  here.
943
944	  Generally, saying Y is the safe option and slows things down a bit.
945
946config SCSI_IZIP_SLOW_CTR
947	bool "ppa/imm option - Assume slow parport control register"
948	depends on SCSI_PPA || SCSI_IMM
949	help
950	  Some parallel ports are known to have excessive delays between
951	  changing the parallel port control register and good data being
952	  available on the parallel port data/status register. This option
953	  forces a small delay (1.0 usec to be exact) after changing the
954	  control register to let things settle out. Enabling this option may
955	  result in a big drop in performance but some very old parallel ports
956	  (found in 386 vintage machines) will not work properly.
957
958	  Generally, saying N is fine.
959
960config SCSI_NCR53C406A
961	tristate "NCR53c406a SCSI support"
962	depends on ISA && SCSI
963	help
964	  This is support for the NCR53c406a SCSI host adapter.  For user
965	  configurable parameters, check out <file:drivers/scsi/NCR53c406a.c>
966	  in the kernel source.  Also read the SCSI-HOWTO, available from
967	  <http://www.tldp.org/docs.html#howto>.
968
969	  To compile this driver as a module, choose M here: the
970	  module will be called NCR53c406.
971
972config SCSI_NCR_D700
973	tristate "NCR Dual 700 MCA SCSI support"
974	depends on MCA && SCSI
975	select SCSI_SPI_ATTRS
976	help
977	  This is a driver for the MicroChannel Dual 700 card produced by
978	  NCR and commonly used in 345x/35xx/4100 class machines.  It always
979	  tries to negotiate sync and uses tag command queueing.
980
981	  Unless you have an NCR manufactured machine, the chances are that
982	  you do not have this SCSI card, so say N.
983
984config SCSI_LASI700
985	tristate "HP Lasi SCSI support for 53c700/710"
986	depends on GSC && SCSI
987	select SCSI_SPI_ATTRS
988	help
989	  This is a driver for the SCSI controller in the Lasi chip found in
990	  many PA-RISC workstations & servers.  If you do not know whether you
991	  have a Lasi chip, it is safe to say "Y" here.
992
993config SCSI_SNI_53C710
994	tristate "SNI RM SCSI support for 53c710"
995	depends on SNI_RM && SCSI
996	select SCSI_SPI_ATTRS
997	select 53C700_LE_ON_BE
998	help
999	  This is a driver for the onboard SCSI controller found in older
1000	  SNI RM workstations & servers.
1001
1002config 53C700_LE_ON_BE
1003	bool
1004	depends on SCSI_LASI700
1005	default y
1006
1007config SCSI_STEX
1008	tristate "Promise SuperTrak EX Series support"
1009	depends on PCI && SCSI
1010	---help---
1011	  This driver supports Promise SuperTrak EX series storage controllers.
1012
1013	  Promise provides Linux RAID configuration utility for these
1014	  controllers. Please visit <http://www.promise.com> to download.
1015
1016	  To compile this driver as a module, choose M here: the
1017	  module will be called stex.
1018
1019config 53C700_BE_BUS
1020	bool
1021	depends on SCSI_A4000T || SCSI_ZORRO7XX || MVME16x_SCSI || BVME6000_SCSI
1022	default y
1023
1024config SCSI_SYM53C8XX_2
1025	tristate "SYM53C8XX Version 2 SCSI support"
1026	depends on PCI && SCSI
1027	select SCSI_SPI_ATTRS
1028	---help---
1029	  This driver supports the whole NCR53C8XX/SYM53C8XX family of
1030	  PCI-SCSI controllers.  It also supports the subset of LSI53C10XX
1031	  Ultra-160 controllers that are based on the SYM53C8XX SCRIPTS
1032	  language.  It does not support LSI53C10XX Ultra-320 PCI-X SCSI
1033	  controllers; you need to use the Fusion MPT driver for that.
1034
1035	  Please read <file:Documentation/scsi/sym53c8xx_2.txt> for more
1036	  information.
1037
1038config SCSI_SYM53C8XX_DMA_ADDRESSING_MODE
1039	int "DMA addressing mode"
1040	depends on SCSI_SYM53C8XX_2
1041	default "1"
1042	---help---
1043	  This option only applies to PCI-SCSI chips that are PCI DAC
1044	  capable (875A, 895A, 896, 1010-33, 1010-66, 1000).
1045
1046	  When set to 0, the driver will program the chip to only perform
1047	  32-bit DMA.  When set to 1, the chip will be able to perform DMA
1048	  to addresses up to 1TB.  When set to 2, the driver supports the
1049	  full 64-bit DMA address range, but can only address 16 segments
1050	  of 4 GB each.  This limits the total addressable range to 64 GB.
1051
1052	  Most machines with less than 4GB of memory should use a setting
1053	  of 0 for best performance.  If your machine has 4GB of memory
1054	  or more, you should set this option to 1 (the default).
1055
1056	  The still experimental value 2 (64 bit DMA addressing with 16
1057	  x 4GB segments limitation) can be used on systems that require
1058	  PCI address bits past bit 39 to be set for the addressing of
1059	  memory using PCI DAC cycles.
1060
1061config SCSI_SYM53C8XX_DEFAULT_TAGS
1062	int "Default tagged command queue depth"
1063	depends on SCSI_SYM53C8XX_2
1064	default "16"
1065	help
1066	  This is the default value of the command queue depth the
1067	  driver will announce to the generic SCSI layer for devices
1068	  that support tagged command queueing. This value can be changed
1069	  from the boot command line.  This is a soft limit that cannot
1070	  exceed CONFIG_SCSI_SYM53C8XX_MAX_TAGS.
1071
1072config SCSI_SYM53C8XX_MAX_TAGS
1073	int "Maximum number of queued commands"
1074	depends on SCSI_SYM53C8XX_2
1075	default "64"
1076	help
1077	  This option allows you to specify the maximum number of commands
1078	  that can be queued to any device, when tagged command queuing is
1079	  possible. The driver supports up to 256 queued commands per device.
1080	  This value is used as a compiled-in hard limit.
1081
1082config SCSI_SYM53C8XX_MMIO
1083	bool "Use memory mapped IO"
1084	depends on SCSI_SYM53C8XX_2
1085	default y
1086	help
1087	  Memory mapped IO is faster than Port IO.  Most people should
1088	  answer Y here, but some machines may have problems.  If you have
1089	  to answer N here, please report the problem to the maintainer.
1090
1091config SCSI_IPR
1092	tristate "IBM Power Linux RAID adapter support"
1093	depends on PCI && SCSI && ATA
1094	select FW_LOADER
1095	---help---
1096	  This driver supports the IBM Power Linux family RAID adapters.
1097	  This includes IBM pSeries 5712, 5703, 5709, and 570A, as well
1098	  as IBM iSeries 5702, 5703, 5709, and 570A.
1099
1100config SCSI_IPR_TRACE
1101	bool "enable driver internal trace"
1102	depends on SCSI_IPR
1103	default y
1104	help
1105	  If you say Y here, the driver will trace all commands issued
1106	  to the adapter. Performance impact is minimal. Trace can be
1107	  dumped using /sys/bus/class/scsi_host/hostXX/trace.
1108
1109config SCSI_IPR_DUMP
1110	bool "enable adapter dump support"
1111	depends on SCSI_IPR
1112	default y
1113	help
1114	  If you say Y here, the driver will support adapter crash dump.
1115	  If you enable this support, the iprdump daemon can be used
1116	  to capture adapter failure analysis information.
1117
1118config SCSI_ZALON
1119	tristate "Zalon SCSI support"
1120	depends on GSC && SCSI
1121	select SCSI_SPI_ATTRS
1122	help
1123	  The Zalon is a GSC/HSC bus interface chip that sits between the
1124	  PA-RISC processor and the NCR 53c720 SCSI controller on C100,
1125	  C110, J200, J210 and some D, K & R-class machines.  It's also
1126	  used on the add-in Bluefish, Barracuda & Shrike SCSI cards.
1127	  Say Y here if you have one of these machines or cards.
1128
1129config SCSI_NCR_Q720
1130	tristate "NCR Quad 720 MCA SCSI support"
1131	depends on MCA && SCSI
1132	select SCSI_SPI_ATTRS
1133	help
1134	  This is a driver for the MicroChannel Quad 720 card produced by
1135	  NCR and commonly used in 345x/35xx/4100 class machines.  It always
1136	  tries to negotiate sync and uses tag command queueing.
1137
1138	  Unless you have an NCR manufactured machine, the chances are that
1139	  you do not have this SCSI card, so say N.
1140
1141config SCSI_NCR53C8XX_DEFAULT_TAGS
1142	int "default tagged command queue depth"
1143	depends on SCSI_ZALON || SCSI_NCR_Q720
1144	default "8"
1145	---help---
1146	  "Tagged command queuing" is a feature of SCSI-2 which improves
1147	  performance: the host adapter can send several SCSI commands to a
1148	  device's queue even if previous commands haven't finished yet.
1149	  Because the device is intelligent, it can optimize its operations
1150	  (like head positioning) based on its own request queue. Some SCSI
1151	  devices don't implement this properly; if you want to disable this
1152	  feature, enter 0 or 1 here (it doesn't matter which).
1153
1154	  The default value is 8 and should be supported by most hard disks.
1155	  This value can be overridden from the boot command line using the
1156	  'tags' option as follows (example):
1157	  'ncr53c8xx=tags:4/t2t3q16/t0u2q10' will set default queue depth to
1158	  4, set queue depth to 16 for target 2 and target 3 on controller 0
1159	  and set queue depth to 10 for target 0 / lun 2 on controller 1.
1160
1161	  The normal answer therefore is to go with the default 8 and to use
1162	  a boot command line option for devices that need to use a different
1163	  command queue depth.
1164
1165	  There is no safe option other than using good SCSI devices.
1166
1167config SCSI_NCR53C8XX_MAX_TAGS
1168	int "maximum number of queued commands"
1169	depends on SCSI_ZALON || SCSI_NCR_Q720
1170	default "32"
1171	---help---
1172	  This option allows you to specify the maximum number of commands
1173	  that can be queued to any device, when tagged command queuing is
1174	  possible. The default value is 32. Minimum is 2, maximum is 64.
1175	  Modern hard disks are able to support 64 tags and even more, but
1176	  do not seem to be faster when more than 32 tags are being used.
1177
1178	  So, the normal answer here is to go with the default value 32 unless
1179	  you are using very large hard disks with large cache (>= 1 MB) that
1180	  are able to take advantage of more than 32 tagged commands.
1181
1182	  There is no safe option and the default answer is recommended.
1183
1184config SCSI_NCR53C8XX_SYNC
1185	int "synchronous transfers frequency in MHz"
1186	depends on SCSI_ZALON || SCSI_NCR_Q720
1187	default "20"
1188	---help---
1189	  The SCSI Parallel Interface-2 Standard defines 5 classes of transfer
1190	  rates: FAST-5, FAST-10, FAST-20, FAST-40 and FAST-80.  The numbers
1191	  are respectively the maximum data transfer rates in mega-transfers
1192	  per second for each class.  For example, a FAST-20 Wide 16 device is
1193	  able to transfer data at 20 million 16 bit packets per second for a
1194	  total rate of 40 MB/s.
1195
1196	  You may specify 0 if you want to only use asynchronous data
1197	  transfers. This is the safest and slowest option. Otherwise, specify
1198	  a value between 5 and 80, depending on the capability of your SCSI
1199	  controller.  The higher the number, the faster the data transfer.
1200	  Note that 80 should normally be ok since the driver decreases the
1201	  value automatically according to the controller's capabilities.
1202
1203	  Your answer to this question is ignored for controllers with NVRAM,
1204	  since the driver will get this information from the user set-up.  It
1205	  also can be overridden using a boot setup option, as follows
1206	  (example): 'ncr53c8xx=sync:12' will allow the driver to negotiate
1207	  for FAST-20 synchronous data transfer (20 mega-transfers per
1208	  second).
1209
1210	  The normal answer therefore is not to go with the default but to
1211	  select the maximum value 80 allowing the driver to use the maximum
1212	  value supported by each controller. If this causes problems with
1213	  your SCSI devices, you should come back and decrease the value.
1214
1215	  There is no safe option other than using good cabling, right
1216	  terminations and SCSI conformant devices.
1217
1218config SCSI_NCR53C8XX_NO_DISCONNECT
1219	bool "not allow targets to disconnect"
1220	depends on (SCSI_ZALON || SCSI_NCR_Q720) && SCSI_NCR53C8XX_DEFAULT_TAGS=0
1221	help
1222	  This option is only provided for safety if you suspect some SCSI
1223	  device of yours to not support properly the target-disconnect
1224	  feature. In that case, you would say Y here. In general however, to
1225	  not allow targets to disconnect is not reasonable if there is more
1226	  than 1 device on a SCSI bus. The normal answer therefore is N.
1227
1228config SCSI_PAS16
1229	tristate "PAS16 SCSI support"
1230	depends on ISA && SCSI
1231	select SCSI_SPI_ATTRS
1232	---help---
1233	  This is support for a SCSI host adapter.  It is explained in section
1234	  3.10 of the SCSI-HOWTO, available from
1235	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
1236	  of the box, you may have to change some settings in
1237	  <file:drivers/scsi/pas16.h>.
1238
1239	  To compile this driver as a module, choose M here: the
1240	  module will be called pas16.
1241
1242config SCSI_QLOGIC_FAS
1243	tristate "Qlogic FAS SCSI support"
1244	depends on ISA && SCSI
1245	---help---
1246	  This is a driver for the ISA, VLB, and PCMCIA versions of the Qlogic
1247	  FastSCSI! cards as well as any other card based on the FASXX chip
1248	  (including the Control Concepts SCSI/IDE/SIO/PIO/FDC cards).
1249
1250	  This driver does NOT support the PCI versions of these cards. The
1251	  PCI versions are supported by the Qlogic ISP driver ("Qlogic ISP
1252	  SCSI support"), below.
1253
1254	  Information about this driver is contained in
1255	  <file:Documentation/scsi/qlogicfas.txt>.  You should also read the
1256	  SCSI-HOWTO, available from
1257	  <http://www.tldp.org/docs.html#howto>.
1258
1259	  To compile this driver as a module, choose M here: the
1260	  module will be called qlogicfas.
1261
1262config SCSI_QLOGIC_1280
1263	tristate "Qlogic QLA 1240/1x80/1x160 SCSI support"
1264	depends on PCI && SCSI
1265	help
1266	  Say Y if you have a QLogic ISP1240/1x80/1x160 SCSI host adapter.
1267
1268	  To compile this driver as a module, choose M here: the
1269	  module will be called qla1280.
1270
1271config SCSI_QLOGICPTI
1272	tristate "PTI Qlogic, ISP Driver"
1273	depends on SBUS && SCSI
1274	help
1275	  This driver supports SBUS SCSI controllers from PTI or QLogic. These
1276	  controllers are known under Solaris as qpti and in the openprom as
1277	  PTI,ptisp or QLGC,isp. Note that PCI QLogic SCSI controllers are
1278	  driven by a different driver.
1279
1280	  To compile this driver as a module, choose M here: the
1281	  module will be called qlogicpti.
1282
1283source "drivers/scsi/qla2xxx/Kconfig"
1284source "drivers/scsi/qla4xxx/Kconfig"
1285
1286config SCSI_LPFC
1287	tristate "Emulex LightPulse Fibre Channel Support"
1288	depends on PCI && SCSI
1289	depends on SCSI_FC_ATTRS
1290	select CRC_T10DIF
1291	help
1292          This lpfc driver supports the Emulex LightPulse
1293          Family of Fibre Channel PCI host adapters.
1294
1295config SCSI_LPFC_DEBUG_FS
1296	bool "Emulex LightPulse Fibre Channel debugfs Support"
1297	depends on SCSI_LPFC && DEBUG_FS
1298	help
1299	  This makes debugging information from the lpfc driver
1300	  available via the debugfs filesystem.
1301
1302config SCSI_SIM710
1303	tristate "Simple 53c710 SCSI support (Compaq, NCR machines)"
1304	depends on (EISA || MCA) && SCSI
1305	select SCSI_SPI_ATTRS
1306	---help---
1307	  This driver is for NCR53c710 based SCSI host adapters.
1308
1309	  It currently supports Compaq EISA cards and NCR MCA cards
1310
1311config SCSI_SYM53C416
1312	tristate "Symbios 53c416 SCSI support"
1313	depends on ISA && SCSI
1314	---help---
1315	  This is support for the sym53c416 SCSI host adapter, the SCSI
1316	  adapter that comes with some HP scanners. This driver requires that
1317	  the sym53c416 is configured first using some sort of PnP
1318	  configuration program (e.g. isapnp) or by a PnP aware BIOS. If you
1319	  are using isapnp then you need to compile this driver as a module
1320	  and then load it using insmod after isapnp has run. The parameters
1321	  of the configured card(s) should be passed to the driver. The format
1322	  is:
1323
1324	  insmod sym53c416 sym53c416=<base>,<irq> [sym53c416_1=<base>,<irq>]
1325
1326	  To compile this driver as a module, choose M here: the
1327	  module will be called sym53c416.
1328
1329config SCSI_DC395x
1330	tristate "Tekram DC395(U/UW/F) and DC315(U) SCSI support"
1331	depends on PCI && SCSI
1332	---help---
1333	  This driver supports PCI SCSI host adapters based on the ASIC
1334	  TRM-S1040 chip, e.g Tekram DC395(U/UW/F) and DC315(U) variants.
1335
1336	  This driver works, but is still in experimental status. So better
1337	  have a bootable disk and a backup in case of emergency.
1338
1339	  Documentation can be found in <file:Documentation/scsi/dc395x.txt>.
1340
1341	  To compile this driver as a module, choose M here: the
1342	  module will be called dc395x.
1343
1344config SCSI_AM53C974
1345	tristate "Tekram DC390(T) and Am53/79C974 SCSI support (new driver)"
1346	depends on PCI && SCSI
1347	select SCSI_SPI_ATTRS
1348	---help---
1349	  This driver supports PCI SCSI host adapters based on the Am53C974A
1350	  chip, e.g. Tekram DC390(T), DawiControl 2974 and some onboard
1351	  PCscsi/PCnet (Am53/79C974) solutions.
1352	  This is a new implementation base on the generic esp_scsi driver.
1353
1354	  Documentation can be found in <file:Documentation/scsi/tmscsim.txt>.
1355
1356	  Note that this driver does NOT support Tekram DC390W/U/F, which are
1357	  based on NCR/Symbios chips. Use "NCR53C8XX SCSI support" for those.
1358
1359	  To compile this driver as a module, choose M here: the
1360	  module will be called am53c974.
1361
1362config SCSI_T128
1363	tristate "Trantor T128/T128F/T228 SCSI support"
1364	depends on ISA && SCSI
1365	select SCSI_SPI_ATTRS
1366	select CHECK_SIGNATURE
1367	---help---
1368	  This is support for a SCSI host adapter. It is explained in section
1369	  3.11 of the SCSI-HOWTO, available from
1370	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
1371	  of the box, you may have to change some settings in
1372	  <file:drivers/scsi/t128.h>.  Note that Trantor was purchased by
1373	  Adaptec, and some former Trantor products are being sold under the
1374	  Adaptec name.
1375
1376	  To compile this driver as a module, choose M here: the
1377	  module will be called t128.
1378
1379config SCSI_U14_34F
1380	tristate "UltraStor 14F/34F support"
1381	depends on ISA && SCSI && ISA_DMA_API
1382	---help---
1383	  This is support for the UltraStor 14F and 34F SCSI-2 host adapters.
1384	  The source at <file:drivers/scsi/u14-34f.c> contains some
1385	  information about this hardware.  If the driver doesn't work out of
1386	  the box, you may have to change some settings in
1387	  <file: drivers/scsi/u14-34f.c>.  Read the SCSI-HOWTO, available from
1388	  <http://www.tldp.org/docs.html#howto>.  Note that there is also
1389	  another driver for the same hardware: "UltraStor SCSI support",
1390	  below.  You should say Y to both only if you want 24F support as
1391	  well.
1392
1393	  To compile this driver as a module, choose M here: the
1394	  module will be called u14-34f.
1395
1396config SCSI_U14_34F_TAGGED_QUEUE
1397	bool "enable tagged command queueing"
1398	depends on SCSI_U14_34F
1399	help
1400	  This is a feature of SCSI-2 which improves performance: the host
1401	  adapter can send several SCSI commands to a device's queue even if
1402	  previous commands haven't finished yet.
1403	  This is equivalent to the "u14-34f=tc:y" boot option.
1404
1405config SCSI_U14_34F_LINKED_COMMANDS
1406	bool "enable elevator sorting"
1407	depends on SCSI_U14_34F
1408	help
1409	  This option enables elevator sorting for all probed SCSI disks and
1410	  CD-ROMs. It definitely reduces the average seek distance when doing
1411	  random seeks, but this does not necessarily result in a noticeable
1412	  performance improvement: your mileage may vary...
1413	  This is equivalent to the "u14-34f=lc:y" boot option.
1414
1415config SCSI_U14_34F_MAX_TAGS
1416	int "maximum number of queued commands"
1417	depends on SCSI_U14_34F
1418	default "8"
1419	help
1420	  This specifies how many SCSI commands can be maximally queued for
1421	  each probed SCSI device. You should reduce the default value of 8
1422	  only if you have disks with buggy or limited tagged command support.
1423	  Minimum is 2 and maximum is 14. This value is also the window size
1424	  used by the elevator sorting option above. The effective value used
1425	  by the driver for each probed SCSI device is reported at boot time.
1426	  This is equivalent to the "u14-34f=mq:8" boot option.
1427
1428config SCSI_ULTRASTOR
1429	tristate "UltraStor SCSI support"
1430	depends on X86 && ISA && SCSI
1431	---help---
1432	  This is support for the UltraStor 14F, 24F and 34F SCSI-2 host
1433	  adapter family.  This driver is explained in section 3.12 of the
1434	  SCSI-HOWTO, available from
1435	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
1436	  of the box, you may have to change some settings in
1437	  <file:drivers/scsi/ultrastor.h>.
1438
1439	  Note that there is also another driver for the same hardware:
1440	  "UltraStor 14F/34F support", above.
1441
1442	  To compile this driver as a module, choose M here: the
1443	  module will be called ultrastor.
1444
1445config SCSI_NSP32
1446	tristate "Workbit NinjaSCSI-32Bi/UDE support"
1447	depends on PCI && SCSI && !64BIT
1448	help
1449	  This is support for the Workbit NinjaSCSI-32Bi/UDE PCI/Cardbus
1450	  SCSI host adapter. Please read the SCSI-HOWTO, available from
1451	  <http://www.tldp.org/docs.html#howto>.
1452
1453	  To compile this driver as a module, choose M here: the
1454	  module will be called nsp32.
1455
1456config SCSI_WD719X
1457	tristate "Western Digital WD7193/7197/7296 support"
1458	depends on PCI && SCSI
1459	select EEPROM_93CX6
1460	---help---
1461	  This is a driver for Western Digital WD7193, WD7197 and WD7296 PCI
1462	  SCSI controllers (based on WD33C296A chip).
1463
1464config SCSI_DEBUG
1465	tristate "SCSI debugging host and device simulator"
1466	depends on SCSI
1467	select CRC_T10DIF
1468	help
1469	  This pseudo driver simulates one or more hosts (SCSI initiators),
1470	  each with one or more targets, each with one or more logical units.
1471	  Defaults to one of each, creating a small RAM disk device. Many
1472	  parameters found in the /sys/bus/pseudo/drivers/scsi_debug
1473	  directory can be tweaked at run time.
1474	  See <http://sg.danny.cz/sg/sdebug26.html> for more information.
1475	  Mainly used for testing and best as a module. If unsure, say N.
1476
1477config SCSI_MESH
1478	tristate "MESH (Power Mac internal SCSI) support"
1479	depends on PPC32 && PPC_PMAC && SCSI
1480	help
1481	  Many Power Macintoshes and clones have a MESH (Macintosh Enhanced
1482	  SCSI Hardware) SCSI bus adaptor (the 7200 doesn't, but all of the
1483	  other Power Macintoshes do). Say Y to include support for this SCSI
1484	  adaptor.
1485
1486	  To compile this driver as a module, choose M here: the
1487	  module will be called mesh.
1488
1489config SCSI_MESH_SYNC_RATE
1490	int "maximum synchronous transfer rate (MB/s) (0 = async)"
1491	depends on SCSI_MESH
1492	default "5"
1493	help
1494	  On Power Macintoshes (and clones) where the MESH SCSI bus adaptor
1495	  drives a bus which is entirely internal to the machine (such as the
1496	  7500, 7600, 8500, etc.), the MESH is capable of synchronous
1497	  operation at up to 10 MB/s. On machines where the SCSI bus
1498	  controlled by the MESH can have external devices connected, it is
1499	  usually rated at 5 MB/s. 5 is a safe value here unless you know the
1500	  MESH SCSI bus is internal only; in that case you can say 10. Say 0
1501	  to disable synchronous operation.
1502
1503config SCSI_MESH_RESET_DELAY_MS
1504	int "initial bus reset delay (ms) (0 = no reset)"
1505	depends on SCSI_MESH
1506	default "4000"
1507
1508config SCSI_MAC53C94
1509	tristate "53C94 (Power Mac external SCSI) support"
1510	depends on PPC32 && PPC_PMAC && SCSI
1511	help
1512	  On Power Macintoshes (and clones) with two SCSI buses, the external
1513	  SCSI bus is usually controlled by a 53C94 SCSI bus adaptor. Older
1514	  machines which only have one SCSI bus, such as the 7200, also use
1515	  the 53C94. Say Y to include support for the 53C94.
1516
1517	  To compile this driver as a module, choose M here: the
1518	  module will be called mac53c94.
1519
1520source "drivers/scsi/arm/Kconfig"
1521
1522config JAZZ_ESP
1523	bool "MIPS JAZZ FAS216 SCSI support"
1524	depends on MACH_JAZZ && SCSI
1525	select SCSI_SPI_ATTRS
1526	help
1527	  This is the driver for the onboard SCSI host adapter of MIPS Magnum
1528	  4000, Acer PICA, Olivetti M700-10 and a few other identical OEM
1529	  systems.
1530
1531config A3000_SCSI
1532	tristate "A3000 WD33C93A support"
1533	depends on AMIGA && SCSI
1534	help
1535	  If you have an Amiga 3000 and have SCSI devices connected to the
1536	  built-in SCSI controller, say Y. Otherwise, say N.
1537
1538	  To compile this driver as a module, choose M here: the
1539	  module will be called a3000.
1540
1541config A2091_SCSI
1542	tristate "A2091/A590 WD33C93A support"
1543	depends on ZORRO && SCSI
1544	help
1545	  If you have a Commodore A2091 SCSI controller, say Y. Otherwise,
1546	  say N.
1547
1548	  To compile this driver as a module, choose M here: the
1549	  module will be called a2091.
1550
1551config GVP11_SCSI
1552	tristate "GVP Series II WD33C93A support"
1553	depends on ZORRO && SCSI
1554	---help---
1555	  If you have a Great Valley Products Series II SCSI controller,
1556	  answer Y. Also say Y if you have a later model of GVP SCSI
1557	  controller (such as the GVP A4008 or a Combo board). Otherwise,
1558	  answer N. This driver does NOT work for the T-Rex series of
1559	  accelerators from TekMagic and GVP-M.
1560
1561	  To compile this driver as a module, choose M here: the
1562	  module will be called gvp11.
1563
1564config SCSI_A4000T
1565	tristate "A4000T NCR53c710 SCSI support"
1566	depends on AMIGA && SCSI
1567	select SCSI_SPI_ATTRS
1568	help
1569	  If you have an Amiga 4000T and have SCSI devices connected to the
1570	  built-in SCSI controller, say Y. Otherwise, say N.
1571
1572	  To compile this driver as a module, choose M here: the
1573	  module will be called a4000t.
1574
1575config SCSI_ZORRO7XX
1576	tristate "Zorro NCR53c710 SCSI support"
1577	depends on ZORRO && SCSI
1578	select SCSI_SPI_ATTRS
1579	help
1580	  Support for various NCR53c710-based SCSI controllers on Zorro
1581	  expansion boards for the Amiga.
1582	  This includes:
1583	    - the Amiga 4091 Zorro III SCSI-2 controller,
1584	    - the MacroSystem Development's WarpEngine Amiga SCSI-2 controller
1585	      (info at
1586	      <http://www.lysator.liu.se/amiga/ar/guide/ar310.guide?FEATURE5>),
1587	    - the SCSI controller on the Phase5 Blizzard PowerUP 603e+
1588	      accelerator card for the Amiga 1200,
1589	    - the SCSI controller on the GVP Turbo 040/060 accelerator.
1590
1591config ATARI_SCSI
1592	tristate "Atari native SCSI support"
1593	depends on ATARI && SCSI
1594	select SCSI_SPI_ATTRS
1595	select NVRAM
1596	---help---
1597	  If you have an Atari with built-in NCR5380 SCSI controller (TT,
1598	  Falcon, ...) say Y to get it supported. Of course also, if you have
1599	  a compatible SCSI controller (e.g. for Medusa).
1600
1601	  To compile this driver as a module, choose M here: the
1602	  module will be called atari_scsi.
1603
1604	  This driver supports both styles of NCR integration into the
1605	  system: the TT style (separate DMA), and the Falcon style (via
1606	  ST-DMA, replacing ACSI).  It does NOT support other schemes, like
1607	  in the Hades (without DMA).
1608
1609config ATARI_SCSI_TOSHIBA_DELAY
1610	bool "Long delays for Toshiba CD-ROMs"
1611	depends on ATARI_SCSI
1612	help
1613	  This option increases the delay after a SCSI arbitration to
1614	  accommodate some flaky Toshiba CD-ROM drives. Say Y if you intend to
1615	  use a Toshiba CD-ROM drive; otherwise, the option is not needed and
1616	  would impact performance a bit, so say N.
1617
1618config ATARI_SCSI_RESET_BOOT
1619	bool "Reset SCSI-devices at boottime"
1620	depends on ATARI_SCSI
1621	help
1622	  Reset the devices on your Atari whenever it boots.  This makes the
1623	  boot process fractionally longer but may assist recovery from errors
1624	  that leave the devices with SCSI operations partway completed.
1625
1626config MAC_SCSI
1627	tristate "Macintosh NCR5380 SCSI"
1628	depends on MAC && SCSI=y
1629	select SCSI_SPI_ATTRS
1630	help
1631	  This is the NCR 5380 SCSI controller included on most of the 68030
1632	  based Macintoshes.  If you have one of these say Y and read the
1633	  SCSI-HOWTO, available from
1634	  <http://www.tldp.org/docs.html#howto>.
1635
1636config SCSI_MAC_ESP
1637	tristate "Macintosh NCR53c9[46] SCSI"
1638	depends on MAC && SCSI
1639	select SCSI_SPI_ATTRS
1640	help
1641	  This is the NCR 53c9x SCSI controller found on most of the 68040
1642	  based Macintoshes.
1643
1644	  To compile this driver as a module, choose M here: the module
1645	  will be called mac_esp.
1646
1647config MVME147_SCSI
1648	bool "WD33C93 SCSI driver for MVME147"
1649	depends on MVME147 && SCSI=y
1650	select SCSI_SPI_ATTRS
1651	help
1652	  Support for the on-board SCSI controller on the Motorola MVME147
1653	  single-board computer.
1654
1655config MVME16x_SCSI
1656	tristate "NCR53C710 SCSI driver for MVME16x"
1657	depends on MVME16x && SCSI
1658	select SCSI_SPI_ATTRS
1659	help
1660	  The Motorola MVME162, 166, 167, 172 and 177 boards use the NCR53C710
1661	  SCSI controller chip.  Almost everyone using one of these boards
1662	  will want to say Y to this question.
1663
1664config BVME6000_SCSI
1665	tristate "NCR53C710 SCSI driver for BVME6000"
1666	depends on BVME6000 && SCSI
1667	select SCSI_SPI_ATTRS
1668	help
1669	  The BVME4000 and BVME6000 boards from BVM Ltd use the NCR53C710
1670	  SCSI controller chip.  Almost everyone using one of these boards
1671	  will want to say Y to this question.
1672
1673config SUN3_SCSI
1674	tristate "Sun3 NCR5380 SCSI"
1675	depends on SUN3 && SCSI
1676	select SCSI_SPI_ATTRS
1677	help
1678	  This option will enable support for the OBIO (onboard io) NCR5380
1679	  SCSI controller found in the Sun 3/50 and 3/60, as well as for
1680	  "Sun3" type VME scsi controllers also based on the NCR5380.
1681	  General Linux information on the Sun 3 series (now discontinued)
1682	  is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
1683
1684config SUN3X_ESP
1685	bool "Sun3x ESP SCSI"
1686	depends on SUN3X && SCSI=y
1687	select SCSI_SPI_ATTRS
1688	help
1689	  The ESP was an on-board SCSI controller used on Sun 3/80
1690	  machines.  Say Y here to compile in support for it.
1691
1692config SCSI_SUNESP
1693	tristate "Sparc ESP Scsi Driver"
1694	depends on SBUS && SCSI
1695	select SCSI_SPI_ATTRS
1696	help
1697	  This is the driver for the Sun ESP SCSI host adapter. The ESP
1698	  chipset is present in most SPARC SBUS-based computers and
1699	  supports the Emulex family of ESP SCSI chips (esp100, esp100A,
1700	  esp236, fas101, fas236) as well as the Qlogic fas366 SCSI chip.
1701
1702	  To compile this driver as a module, choose M here: the
1703	  module will be called sun_esp.
1704
1705config ZFCP
1706	tristate "FCP host bus adapter driver for IBM eServer zSeries"
1707	depends on S390 && QDIO && SCSI
1708	depends on SCSI_FC_ATTRS
1709	help
1710          If you want to access SCSI devices attached to your IBM eServer
1711          zSeries by means of Fibre Channel interfaces say Y.
1712          For details please refer to the documentation provided by IBM at
1713          <http://oss.software.ibm.com/developerworks/opensource/linux390>
1714
1715          This driver is also available as a module. This module will be
1716          called zfcp. If you want to compile it as a module, say M here
1717          and read <file:Documentation/kbuild/modules.txt>.
1718
1719config SCSI_PMCRAID
1720	tristate "PMC SIERRA Linux MaxRAID adapter support"
1721	depends on PCI && SCSI && NET
1722	---help---
1723	  This driver supports the PMC SIERRA MaxRAID adapters.
1724
1725config SCSI_PM8001
1726	tristate "PMC-Sierra SPC 8001 SAS/SATA Based Host Adapter driver"
1727	depends on PCI && SCSI
1728	select SCSI_SAS_LIBSAS
1729	help
1730	  This driver supports PMC-Sierra PCIE SAS/SATA 8x6G SPC 8001 chip
1731	  based host adapters.
1732
1733config SCSI_BFA_FC
1734	tristate "Brocade BFA Fibre Channel Support"
1735	depends on PCI && SCSI
1736	depends on SCSI_FC_ATTRS
1737	help
1738	  This bfa driver supports all Brocade PCIe FC/FCOE host adapters.
1739
1740	  To compile this driver as a module, choose M here. The module will
1741	  be called bfa.
1742
1743config SCSI_VIRTIO
1744	tristate "virtio-scsi support"
1745	depends on VIRTIO
1746	select BLK_DEV_INTEGRITY
1747	help
1748          This is the virtual HBA driver for virtio.  If the kernel will
1749          be used in a virtual machine, say Y or M.
1750
1751source "drivers/scsi/csiostor/Kconfig"
1752
1753endif # SCSI_LOWLEVEL
1754
1755source "drivers/scsi/pcmcia/Kconfig"
1756
1757source "drivers/scsi/device_handler/Kconfig"
1758
1759source "drivers/scsi/osd/Kconfig"
1760
1761endmenu
1762