xref: /openbmc/linux/drivers/scsi/Kconfig (revision a06c488d)
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 overridden 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  In Linux 2.6 this has been superseded by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	depends on m || SCSI_SAS_ATTRS != m
198	help
199	  Enclosures are devices sitting on or in SCSI backplanes that
200	  manage devices.  If you have a disk cage, the chances are that
201	  it has an enclosure device.  Selecting this option will just allow
202	  certain enclosure conditions to be reported and is not required.
203
204config SCSI_CONSTANTS
205	bool "Verbose SCSI error reporting (kernel size +=75K)"
206	depends on SCSI
207	help
208	  The error messages regarding your SCSI hardware will be easier to
209	  understand if you say Y here; it will enlarge your kernel by about
210	  75 KB. If in doubt, say Y.
211
212config SCSI_LOGGING
213	bool "SCSI logging facility"
214	depends on SCSI
215	---help---
216	  This turns on a logging facility that can be used to debug a number
217	  of SCSI related problems.
218
219	  If you say Y here, no logging output will appear by default, but you
220	  can enable logging by saying Y to "/proc file system support" and
221	  "Sysctl support" below and executing the command
222
223	  echo <bitmask> > /proc/sys/dev/scsi/logging_level
224
225	  where <bitmask> is a four byte value representing the logging type
226	  and logging level for each type of logging selected.
227
228	  There are a number of logging types and you can find them in the
229	  source at <file:drivers/scsi/scsi_logging.h>. The logging levels
230	  are also described in that file and they determine the verbosity of
231	  the logging for each logging type.
232
233	  If you say N here, it may be harder to track down some types of SCSI
234	  problems. If you say Y here your kernel will be somewhat larger, but
235	  there should be no noticeable performance impact as long as you have
236	  logging turned off.
237
238config SCSI_SCAN_ASYNC
239	bool "Asynchronous SCSI scanning"
240	depends on SCSI
241	help
242	  The SCSI subsystem can probe for devices while the rest of the
243	  system continues booting, and even probe devices on different
244	  busses in parallel, leading to a significant speed-up.
245
246	  You can override this choice by specifying "scsi_mod.scan=sync"
247	  or async on the kernel's command line.
248
249	  Note that this setting also affects whether resuming from
250	  system suspend will be performed asynchronously.
251
252menu "SCSI Transports"
253	depends on SCSI
254
255config SCSI_SPI_ATTRS
256	tristate "Parallel SCSI (SPI) Transport Attributes"
257	depends on SCSI
258	help
259	  If you wish to export transport-specific information about
260	  each attached SCSI device to sysfs, say Y.  Otherwise, say N.
261
262config SCSI_FC_ATTRS
263	tristate "FiberChannel Transport Attributes"
264	depends on SCSI && NET
265	select SCSI_NETLINK
266	help
267	  If you wish to export transport-specific information about
268	  each attached FiberChannel device to sysfs, say Y.
269	  Otherwise, say N.
270
271config SCSI_ISCSI_ATTRS
272	tristate "iSCSI Transport Attributes"
273	depends on SCSI && NET
274	select BLK_DEV_BSGLIB
275	help
276	  If you wish to export transport-specific information about
277	  each attached iSCSI device to sysfs, say Y.
278	  Otherwise, say N.
279
280config SCSI_SAS_ATTRS
281	tristate "SAS Transport Attributes"
282	depends on SCSI
283	select BLK_DEV_BSG
284	help
285	  If you wish to export transport-specific information about
286	  each attached SAS device to sysfs, say Y.
287
288source "drivers/scsi/libsas/Kconfig"
289
290config SCSI_SRP_ATTRS
291	tristate "SRP Transport Attributes"
292	depends on SCSI
293	help
294	  If you wish to export transport-specific information about
295	  each attached SRP device to sysfs, say Y.
296
297endmenu
298
299menuconfig SCSI_LOWLEVEL
300	bool "SCSI low-level drivers"
301	depends on SCSI!=n
302	default y
303
304if SCSI_LOWLEVEL && SCSI
305
306config ISCSI_TCP
307	tristate "iSCSI Initiator over TCP/IP"
308	depends on SCSI && INET
309	select CRYPTO
310	select CRYPTO_MD5
311	select CRYPTO_CRC32C
312	select SCSI_ISCSI_ATTRS
313	help
314	 The iSCSI Driver provides a host with the ability to access storage
315	 through an IP network. The driver uses the iSCSI protocol to transport
316	 SCSI requests and responses over a TCP/IP network between the host
317	 (the "initiator") and "targets".  Architecturally, the iSCSI driver
318	 combines with the host's TCP/IP stack, network drivers, and Network
319	 Interface Card (NIC) to provide the same functions as a SCSI or a
320	 Fibre Channel (FC) adapter driver with a Host Bus Adapter (HBA).
321
322	 To compile this driver as a module, choose M here: the
323	 module will be called iscsi_tcp.
324
325	 The userspace component needed to initialize the driver, documentation,
326	 and sample configuration files can be found here:
327
328	 http://open-iscsi.org
329
330config ISCSI_BOOT_SYSFS
331	tristate "iSCSI Boot Sysfs Interface"
332	default	n
333	help
334	  This option enables support for exposing iSCSI boot information
335	  via sysfs to userspace. If you wish to export this information,
336	  say Y. Otherwise, say N.
337
338source "drivers/scsi/cxgbi/Kconfig"
339source "drivers/scsi/bnx2i/Kconfig"
340source "drivers/scsi/bnx2fc/Kconfig"
341source "drivers/scsi/be2iscsi/Kconfig"
342source "drivers/scsi/cxlflash/Kconfig"
343
344config SGIWD93_SCSI
345	tristate "SGI WD93C93 SCSI Driver"
346	depends on SGI_HAS_WD93 && SCSI
347  	help
348	  If you have a Western Digital WD93 SCSI controller on
349	  an SGI MIPS system, say Y.  Otherwise, say N.
350
351config BLK_DEV_3W_XXXX_RAID
352	tristate "3ware 5/6/7/8xxx ATA-RAID support"
353	depends on PCI && SCSI
354	help
355	  3ware is the only hardware ATA-Raid product in Linux to date.
356	  This card is 2,4, or 8 channel master mode support only.
357	  SCSI support required!!!
358
359	  <http://www.3ware.com/>
360
361	  Please read the comments at the top of
362	  <file:drivers/scsi/3w-xxxx.c>.
363
364config SCSI_HPSA
365	tristate "HP Smart Array SCSI driver"
366	depends on PCI && SCSI
367	select CHECK_SIGNATURE
368	select SCSI_SAS_ATTRS
369	help
370	  This driver supports HP Smart Array Controllers (circa 2009).
371	  It is a SCSI alternative to the cciss driver, which is a block
372	  driver.  Anyone wishing to use HP Smart Array controllers who
373	  would prefer the devices be presented to linux as SCSI devices,
374	  rather than as generic block devices should say Y here.
375
376config SCSI_3W_9XXX
377	tristate "3ware 9xxx SATA-RAID support"
378	depends on PCI && SCSI
379	help
380	  This driver supports the 9000 series 3ware SATA-RAID cards.
381
382	  <http://www.amcc.com>
383
384	  Please read the comments at the top of
385	  <file:drivers/scsi/3w-9xxx.c>.
386
387config SCSI_3W_SAS
388	tristate "3ware 97xx SAS/SATA-RAID support"
389	depends on PCI && SCSI
390	help
391	  This driver supports the LSI 3ware 9750 6Gb/s SAS/SATA-RAID cards.
392
393	  <http://www.lsi.com>
394
395	  Please read the comments at the top of
396	  <file:drivers/scsi/3w-sas.c>.
397
398config SCSI_7000FASST
399	tristate "7000FASST SCSI support"
400	depends on ISA && SCSI && ISA_DMA_API
401	select CHECK_SIGNATURE
402	help
403	  This driver supports the Western Digital 7000 SCSI host adapter
404	  family.  Some information is in the source:
405	  <file:drivers/scsi/wd7000.c>.
406
407	  To compile this driver as a module, choose M here: the
408	  module will be called wd7000.
409
410config SCSI_ACARD
411	tristate "ACARD SCSI support"
412	depends on PCI && SCSI
413	help
414	  This driver supports the ACARD SCSI host adapter.
415	  Support Chip <ATP870 ATP876 ATP880 ATP885>
416	  To compile this driver as a module, choose M here: the
417	  module will be called atp870u.
418
419config SCSI_AHA152X
420	tristate "Adaptec AHA152X/2825 support"
421	depends on ISA && SCSI
422	select SCSI_SPI_ATTRS
423	select CHECK_SIGNATURE
424	---help---
425	  This is a driver for the AHA-1510, AHA-1520, AHA-1522, and AHA-2825
426	  SCSI host adapters. It also works for the AVA-1505, but the IRQ etc.
427	  must be manually specified in this case.
428
429	  It is explained in section 3.3 of the SCSI-HOWTO, available from
430	  <http://www.tldp.org/docs.html#howto>. You might also want to
431	  read the file <file:Documentation/scsi/aha152x.txt>.
432
433	  To compile this driver as a module, choose M here: the
434	  module will be called aha152x.
435
436config SCSI_AHA1542
437	tristate "Adaptec AHA1542 support"
438	depends on ISA && SCSI && ISA_DMA_API
439	---help---
440	  This is support for a SCSI host adapter.  It is explained in section
441	  3.4 of the SCSI-HOWTO, available from
442	  <http://www.tldp.org/docs.html#howto>.  Note that Trantor was
443	  purchased by Adaptec, and some former Trantor products are being
444	  sold under the Adaptec name.  If it doesn't work out of the box, you
445	  may have to change some settings in <file:drivers/scsi/aha1542.h>.
446
447	  To compile this driver as a module, choose M here: the
448	  module will be called aha1542.
449
450config SCSI_AHA1740
451	tristate "Adaptec AHA1740 support"
452	depends on EISA && SCSI
453	---help---
454	  This is support for a SCSI host adapter.  It is explained in section
455	  3.5 of the SCSI-HOWTO, available from
456	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
457	  of the box, you may have to change some settings in
458	  <file:drivers/scsi/aha1740.h>.
459
460	  To compile this driver as a module, choose M here: the
461	  module will be called aha1740.
462
463config SCSI_AACRAID
464	tristate "Adaptec AACRAID support"
465	depends on SCSI && PCI
466	help
467	  This driver supports a variety of Dell, HP, Adaptec, IBM and
468	  ICP storage products. For a list of supported products, refer
469	  to <file:Documentation/scsi/aacraid.txt>.
470
471	  To compile this driver as a module, choose M here: the module
472	  will be called aacraid.
473
474
475source "drivers/scsi/aic7xxx/Kconfig.aic7xxx"
476source "drivers/scsi/aic7xxx/Kconfig.aic79xx"
477source "drivers/scsi/aic94xx/Kconfig"
478source "drivers/scsi/hisi_sas/Kconfig"
479source "drivers/scsi/mvsas/Kconfig"
480
481config SCSI_MVUMI
482	tristate "Marvell UMI driver"
483	depends on SCSI && PCI
484	help
485	  Module for Marvell Universal Message Interface(UMI) driver
486
487	  To compile this driver as a module, choose M here: the
488	  module will be called mvumi.
489
490config SCSI_DPT_I2O
491	tristate "Adaptec I2O RAID support "
492	depends on SCSI && PCI && VIRT_TO_BUS
493	help
494	  This driver supports all of Adaptec's I2O based RAID controllers as
495	  well as the DPT SmartRaid V cards.  This is an Adaptec maintained
496	  driver by Deanna Bonds.  See <file:Documentation/scsi/dpti.txt>.
497
498	  To compile this driver as a module, choose M here: the
499	  module will be called dpt_i2o.
500
501config SCSI_ADVANSYS
502	tristate "AdvanSys SCSI support"
503	depends on SCSI
504	depends on ISA || EISA || PCI
505	depends on ISA_DMA_API || !ISA
506	help
507	  This is a driver for all SCSI host adapters manufactured by
508	  AdvanSys. It is documented in the kernel source in
509	  <file:drivers/scsi/advansys.c>.
510
511	  To compile this driver as a module, choose M here: the
512	  module will be called advansys.
513
514config SCSI_IN2000
515	tristate "Always IN2000 SCSI support"
516	depends on ISA && SCSI
517	help
518	  This is support for an ISA bus SCSI host adapter.  You'll find more
519	  information in <file:Documentation/scsi/in2000.txt>. If it doesn't work
520	  out of the box, you may have to change the jumpers for IRQ or
521	  address selection.
522
523	  To compile this driver as a module, choose M here: the
524	  module will be called in2000.
525
526config SCSI_ARCMSR
527	tristate "ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID Host Adapter"
528	depends on PCI && SCSI
529	help
530	  This driver supports all of ARECA's SATA/SAS RAID controller cards.
531	  This is an ARECA-maintained driver by Erich Chen.
532	  If you have any problems, please mail to: <erich@areca.com.tw>.
533	  Areca supports Linux RAID config tools.
534	  Please link <http://www.areca.com.tw>
535
536	  To compile this driver as a module, choose M here: the
537	  module will be called arcmsr (modprobe arcmsr).
538
539source "drivers/scsi/esas2r/Kconfig"
540source "drivers/scsi/megaraid/Kconfig.megaraid"
541source "drivers/scsi/mpt3sas/Kconfig"
542source "drivers/scsi/ufs/Kconfig"
543
544config SCSI_HPTIOP
545	tristate "HighPoint RocketRAID 3xxx/4xxx Controller support"
546	depends on SCSI && PCI
547	help
548	  This option enables support for HighPoint RocketRAID 3xxx/4xxx
549	  controllers.
550
551	  To compile this driver as a module, choose M here; the module
552	  will be called hptiop. If unsure, say N.
553
554config SCSI_BUSLOGIC
555	tristate "BusLogic SCSI support"
556	depends on (PCI || ISA || MCA) && SCSI && ISA_DMA_API && VIRT_TO_BUS
557	---help---
558	  This is support for BusLogic MultiMaster and FlashPoint SCSI Host
559	  Adapters. Consult the SCSI-HOWTO, available from
560	  <http://www.tldp.org/docs.html#howto>, and the files
561	  <file:Documentation/scsi/BusLogic.txt> and
562	  <file:Documentation/scsi/FlashPoint.txt> for more information.
563	  Note that support for FlashPoint is only available for 32-bit
564	  x86 configurations.
565
566	  To compile this driver as a module, choose M here: the
567	  module will be called BusLogic.
568
569config SCSI_FLASHPOINT
570	bool "FlashPoint support"
571	depends on SCSI_BUSLOGIC && PCI
572	help
573	  This option allows you to add FlashPoint support to the
574	  BusLogic SCSI driver. The FlashPoint SCCB Manager code is
575	  substantial, so users of MultiMaster Host Adapters may not
576	  wish to include it.
577
578config VMWARE_PVSCSI
579	tristate "VMware PVSCSI driver support"
580	depends on PCI && SCSI && X86
581	help
582	  This driver supports VMware's para virtualized SCSI HBA.
583	  To compile this driver as a module, choose M here: the
584	  module will be called vmw_pvscsi.
585
586config XEN_SCSI_FRONTEND
587	tristate "XEN SCSI frontend driver"
588	depends on SCSI && XEN
589	select XEN_XENBUS_FRONTEND
590	help
591	  The XEN SCSI frontend driver allows the kernel to access SCSI Devices
592	  within another guest OS (usually Dom0).
593	  Only needed if the kernel is running in a XEN guest and generic
594	  SCSI access to a device is needed.
595
596config HYPERV_STORAGE
597	tristate "Microsoft Hyper-V virtual storage driver"
598	depends on SCSI && HYPERV
599	default HYPERV
600	help
601	  Select this option to enable the Hyper-V virtual storage driver.
602
603config LIBFC
604	tristate "LibFC module"
605	depends on SCSI_FC_ATTRS
606	select CRC32
607	---help---
608	  Fibre Channel library module
609
610config LIBFCOE
611	tristate "LibFCoE module"
612	depends on LIBFC
613	---help---
614	  Library for Fibre Channel over Ethernet module
615
616config FCOE
617	tristate "FCoE module"
618	depends on PCI
619	depends on LIBFCOE
620	---help---
621	  Fibre Channel over Ethernet module
622
623config FCOE_FNIC
624	tristate "Cisco FNIC Driver"
625	depends on PCI && X86
626	depends on LIBFCOE
627	help
628	  This is support for the Cisco PCI-Express FCoE HBA.
629
630	  To compile this driver as a module, choose M here and read
631	  <file:Documentation/scsi/scsi.txt>.
632	  The module will be called fnic.
633
634config SCSI_SNIC
635	tristate "Cisco SNIC Driver"
636	depends on PCI && SCSI
637	help
638	  This is support for the Cisco PCI-Express SCSI HBA.
639
640	  To compile this driver as a module, choose M here and read
641	  <file:Documentation/scsi/scsi.txt>.
642	  The module will be called snic.
643
644config SCSI_SNIC_DEBUG_FS
645	bool "Cisco SNIC Driver Debugfs Support"
646	depends on SCSI_SNIC && DEBUG_FS
647	help
648	  This enables to list debugging information from SNIC Driver
649	  available via debugfs file system
650
651config SCSI_DMX3191D
652	tristate "DMX3191D SCSI support"
653	depends on PCI && SCSI
654	select SCSI_SPI_ATTRS
655	help
656	  This is support for Domex DMX3191D SCSI Host Adapters.
657
658	  To compile this driver as a module, choose M here: the
659	  module will be called dmx3191d.
660
661config SCSI_DTC3280
662	tristate "DTC3180/3280 SCSI support"
663	depends on ISA && SCSI
664	select SCSI_SPI_ATTRS
665	select CHECK_SIGNATURE
666	help
667	  This is support for DTC 3180/3280 SCSI Host Adapters.  Please read
668	  the SCSI-HOWTO, available from
669	  <http://www.tldp.org/docs.html#howto>, and the file
670	  <file:Documentation/scsi/dtc3x80.txt>.
671
672	  To compile this driver as a module, choose M here: the
673	  module will be called dtc.
674
675config SCSI_EATA
676	tristate "EATA ISA/EISA/PCI (DPT and generic EATA/DMA-compliant boards) support"
677	depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
678	---help---
679	  This driver supports all EATA/DMA-compliant SCSI host adapters.  DPT
680	  ISA and all EISA I/O addresses are probed looking for the "EATA"
681	  signature. The addresses of all the PCI SCSI controllers reported
682          by the PCI subsystem are probed as well.
683
684	  You want to read the start of <file:drivers/scsi/eata.c> and the
685	  SCSI-HOWTO, available from
686	  <http://www.tldp.org/docs.html#howto>.
687
688	  To compile this driver as a module, choose M here: the
689	  module will be called eata.
690
691config SCSI_EATA_TAGGED_QUEUE
692	bool "enable tagged command queueing"
693	depends on SCSI_EATA
694	help
695	  This is a feature of SCSI-2 which improves performance: the host
696	  adapter can send several SCSI commands to a device's queue even if
697	  previous commands haven't finished yet.
698	  This is equivalent to the "eata=tc:y" boot option.
699
700config SCSI_EATA_LINKED_COMMANDS
701	bool "enable elevator sorting"
702	depends on SCSI_EATA
703	help
704	  This option enables elevator sorting for all probed SCSI disks and
705	  CD-ROMs. It definitely reduces the average seek distance when doing
706	  random seeks, but this does not necessarily result in a noticeable
707	  performance improvement: your mileage may vary...
708	  This is equivalent to the "eata=lc:y" boot option.
709
710config SCSI_EATA_MAX_TAGS
711	int "maximum number of queued commands"
712	depends on SCSI_EATA
713	default "16"
714	help
715	  This specifies how many SCSI commands can be maximally queued for
716	  each probed SCSI device. You should reduce the default value of 16
717	  only if you have disks with buggy or limited tagged command support.
718	  Minimum is 2 and maximum is 62. This value is also the window size
719	  used by the elevator sorting option above. The effective value used
720	  by the driver for each probed SCSI device is reported at boot time.
721	  This is equivalent to the "eata=mq:8" boot option.
722
723config SCSI_EATA_PIO
724	tristate "EATA-PIO (old DPT PM2001, PM2012A) support"
725	depends on (ISA || EISA || PCI) && SCSI && BROKEN
726	---help---
727	  This driver supports all EATA-PIO protocol compliant SCSI Host
728	  Adapters like the DPT PM2001 and the PM2012A.  EATA-DMA compliant
729	  host adapters could also use this driver but are discouraged from
730	  doing so, since this driver only supports hard disks and lacks
731	  numerous features.  You might want to have a look at the SCSI-HOWTO,
732	  available from <http://www.tldp.org/docs.html#howto>.
733
734	  To compile this driver as a module, choose M here: the
735	  module will be called eata_pio.
736
737config SCSI_FUTURE_DOMAIN
738	tristate "Future Domain 16xx SCSI/AHA-2920A support"
739	depends on (ISA || PCI) && SCSI
740	select CHECK_SIGNATURE
741	---help---
742	  This is support for Future Domain's 16-bit SCSI host adapters
743	  (TMC-1660/1680, TMC-1650/1670, TMC-3260, TMC-1610M/MER/MEX) and
744	  other adapters based on the Future Domain chipsets (Quantum
745	  ISA-200S, ISA-250MG; Adaptec AHA-2920A; and at least one IBM board).
746	  It is explained in section 3.7 of the SCSI-HOWTO, available from
747	  <http://www.tldp.org/docs.html#howto>.
748
749	  NOTE: Newer Adaptec AHA-2920C boards use the Adaptec AIC-7850 chip
750	  and should use the aic7xxx driver ("Adaptec AIC7xxx chipset SCSI
751	  controller support"). This Future Domain driver works with the older
752	  Adaptec AHA-2920A boards with a Future Domain chip on them.
753
754	  To compile this driver as a module, choose M here: the
755	  module will be called fdomain.
756
757config SCSI_GDTH
758	tristate "Intel/ICP (former GDT SCSI Disk Array) RAID Controller support"
759	depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
760	---help---
761	  Formerly called GDT SCSI Disk Array Controller Support.
762
763	  This is a driver for RAID/SCSI Disk Array Controllers (EISA/ISA/PCI)
764	  manufactured by Intel Corporation/ICP vortex GmbH. It is documented
765	  in the kernel source in <file:drivers/scsi/gdth.c> and
766	  <file:drivers/scsi/gdth.h>.
767
768	  To compile this driver as a module, choose M here: the
769	  module will be called gdth.
770
771config SCSI_ISCI
772	tristate "Intel(R) C600 Series Chipset SAS Controller"
773	depends on PCI && SCSI
774	depends on X86
775	select SCSI_SAS_LIBSAS
776	---help---
777	  This driver supports the 6Gb/s SAS capabilities of the storage
778	  control unit found in the Intel(R) C600 series chipset.
779
780config SCSI_GENERIC_NCR5380
781	tristate "Generic NCR5380/53c400 SCSI PIO support"
782	depends on ISA && SCSI
783	select SCSI_SPI_ATTRS
784	---help---
785	  This is a driver for the old NCR 53c80 series of SCSI controllers
786	  on boards using PIO. Most boards such as the Trantor T130 fit this
787	  category, along with a large number of ISA 8bit controllers shipped
788	  for free with SCSI scanners. If you have a PAS16, T128 or DMX3191
789	  you should select the specific driver for that card rather than
790	  generic 5380 support.
791
792	  It is explained in section 3.8 of the SCSI-HOWTO, available from
793	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
794	  of the box, you may have to change some settings in
795	  <file:drivers/scsi/g_NCR5380.h>.
796
797	  To compile this driver as a module, choose M here: the
798	  module will be called g_NCR5380.
799
800config SCSI_GENERIC_NCR5380_MMIO
801	tristate "Generic NCR5380/53c400 SCSI MMIO support"
802	depends on ISA && SCSI
803	select SCSI_SPI_ATTRS
804	---help---
805	  This is a driver for the old NCR 53c80 series of SCSI controllers
806	  on boards using memory mapped I/O.
807	  It is explained in section 3.8 of the SCSI-HOWTO, available from
808	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
809	  of the box, you may have to change some settings in
810	  <file:drivers/scsi/g_NCR5380.h>.
811
812	  To compile this driver as a module, choose M here: the
813	  module will be called g_NCR5380_mmio.
814
815config SCSI_GENERIC_NCR53C400
816	bool "Enable NCR53c400 extensions"
817	depends on SCSI_GENERIC_NCR5380
818	help
819	  This enables certain optimizations for the NCR53c400 SCSI cards.
820	  You might as well try it out.  Note that this driver will only probe
821	  for the Trantor T130B in its default configuration; you might have
822	  to pass a command line option to the kernel at boot time if it does
823	  not detect your card.  See the file
824	  <file:Documentation/scsi/g_NCR5380.txt> for details.
825
826config SCSI_IPS
827	tristate "IBM ServeRAID support"
828	depends on PCI && SCSI
829	---help---
830	  This is support for the IBM ServeRAID hardware RAID controllers.
831	  See <http://www.developer.ibm.com/welcome/netfinity/serveraid.html>
832	  and <http://www-947.ibm.com/support/entry/portal/docdisplay?brand=5000008&lndocid=SERV-RAID>
833	  for more information.  If this driver does not work correctly
834	  without modification please contact the author by email at
835	  <ipslinux@adaptec.com>.
836
837	  To compile this driver as a module, choose M here: the
838	  module will be called ips.
839
840config SCSI_IBMVSCSI
841	tristate "IBM Virtual SCSI support"
842	depends on PPC_PSERIES
843	select SCSI_SRP_ATTRS
844	help
845	  This is the IBM POWER Virtual SCSI Client
846
847	  To compile this driver as a module, choose M here: the
848	  module will be called ibmvscsi.
849
850config SCSI_IBMVFC
851	tristate "IBM Virtual FC support"
852	depends on PPC_PSERIES && SCSI
853	depends on SCSI_FC_ATTRS
854	help
855	  This is the IBM POWER Virtual FC Client
856
857	  To compile this driver as a module, choose M here: the
858	  module will be called ibmvfc.
859
860config SCSI_IBMVFC_TRACE
861	bool "enable driver internal trace"
862	depends on SCSI_IBMVFC
863	default y
864	help
865	  If you say Y here, the driver will trace all commands issued
866	  to the adapter. Performance impact is minimal. Trace can be
867	  dumped using /sys/class/scsi_host/hostXX/trace.
868
869config SCSI_INITIO
870	tristate "Initio 9100U(W) support"
871	depends on PCI && SCSI
872	help
873	  This is support for the Initio 91XXU(W) SCSI host adapter.  Please
874	  read the SCSI-HOWTO, available from
875	  <http://www.tldp.org/docs.html#howto>.
876
877	  To compile this driver as a module, choose M here: the
878	  module will be called initio.
879
880config SCSI_INIA100
881	tristate "Initio INI-A100U2W support"
882	depends on PCI && SCSI
883	help
884	  This is support for the Initio INI-A100U2W SCSI host adapter.
885	  Please read the SCSI-HOWTO, available from
886	  <http://www.tldp.org/docs.html#howto>.
887
888	  To compile this driver as a module, choose M here: the
889	  module will be called a100u2w.
890
891config SCSI_PPA
892	tristate "IOMEGA parallel port (ppa - older drives)"
893	depends on SCSI && PARPORT_PC
894	---help---
895	  This driver supports older versions of IOMEGA's parallel port ZIP
896	  drive (a 100 MB removable media device).
897
898	  Note that you can say N here if you have the SCSI version of the ZIP
899	  drive: it will be supported automatically if you said Y to the
900	  generic "SCSI disk support", above.
901
902	  If you have the ZIP Plus drive or a more recent parallel port ZIP
903	  drive (if the supplied cable with the drive is labeled "AutoDetect")
904	  then you should say N here and Y to "IOMEGA parallel port (imm -
905	  newer drives)", below.
906
907	  For more information about this driver and how to use it you should
908	  read the file <file:Documentation/scsi/ppa.txt>.  You should also read
909	  the SCSI-HOWTO, which is available from
910	  <http://www.tldp.org/docs.html#howto>.  If you use this driver,
911	  you will still be able to use the parallel port for other tasks,
912	  such as a printer; it is safe to compile both drivers into the
913	  kernel.
914
915	  To compile this driver as a module, choose M here: the
916	  module will be called ppa.
917
918config SCSI_IMM
919	tristate "IOMEGA parallel port (imm - newer drives)"
920	depends on SCSI && PARPORT_PC
921	---help---
922	  This driver supports newer versions of IOMEGA's parallel port ZIP
923	  drive (a 100 MB removable media device).
924
925	  Note that you can say N here if you have the SCSI version of the ZIP
926	  drive: it will be supported automatically if you said Y to the
927	  generic "SCSI disk support", above.
928
929	  If you have the ZIP Plus drive or a more recent parallel port ZIP
930	  drive (if the supplied cable with the drive is labeled "AutoDetect")
931	  then you should say Y here; if you have an older ZIP drive, say N
932	  here and Y to "IOMEGA Parallel Port (ppa - older drives)", above.
933
934	  For more information about this driver and how to use it you should
935	  read the file <file:Documentation/scsi/ppa.txt>.  You should also read
936	  the SCSI-HOWTO, which is available from
937	  <http://www.tldp.org/docs.html#howto>.  If you use this driver,
938	  you will still be able to use the parallel port for other tasks,
939	  such as a printer; it is safe to compile both drivers into the
940	  kernel.
941
942	  To compile this driver as a module, choose M here: the
943	  module will be called imm.
944
945config SCSI_IZIP_EPP16
946	bool "ppa/imm option - Use slow (but safe) EPP-16"
947	depends on SCSI_PPA || SCSI_IMM
948	---help---
949	  EPP (Enhanced Parallel Port) is a standard for parallel ports which
950	  allows them to act as expansion buses that can handle up to 64
951	  peripheral devices.
952
953	  Some parallel port chipsets are slower than their motherboard, and
954	  so we have to control the state of the chipset's FIFO queue every
955	  now and then to avoid data loss. This will be done if you say Y
956	  here.
957
958	  Generally, saying Y is the safe option and slows things down a bit.
959
960config SCSI_IZIP_SLOW_CTR
961	bool "ppa/imm option - Assume slow parport control register"
962	depends on SCSI_PPA || SCSI_IMM
963	help
964	  Some parallel ports are known to have excessive delays between
965	  changing the parallel port control register and good data being
966	  available on the parallel port data/status register. This option
967	  forces a small delay (1.0 usec to be exact) after changing the
968	  control register to let things settle out. Enabling this option may
969	  result in a big drop in performance but some very old parallel ports
970	  (found in 386 vintage machines) will not work properly.
971
972	  Generally, saying N is fine.
973
974config SCSI_NCR53C406A
975	tristate "NCR53c406a SCSI support"
976	depends on ISA && SCSI
977	help
978	  This is support for the NCR53c406a SCSI host adapter.  For user
979	  configurable parameters, check out <file:drivers/scsi/NCR53c406a.c>
980	  in the kernel source.  Also read the SCSI-HOWTO, available from
981	  <http://www.tldp.org/docs.html#howto>.
982
983	  To compile this driver as a module, choose M here: the
984	  module will be called NCR53c406.
985
986config SCSI_NCR_D700
987	tristate "NCR Dual 700 MCA SCSI support"
988	depends on MCA && SCSI
989	select SCSI_SPI_ATTRS
990	help
991	  This is a driver for the MicroChannel Dual 700 card produced by
992	  NCR and commonly used in 345x/35xx/4100 class machines.  It always
993	  tries to negotiate sync and uses tag command queueing.
994
995	  Unless you have an NCR manufactured machine, the chances are that
996	  you do not have this SCSI card, so say N.
997
998config SCSI_LASI700
999	tristate "HP Lasi SCSI support for 53c700/710"
1000	depends on GSC && SCSI
1001	select SCSI_SPI_ATTRS
1002	help
1003	  This is a driver for the SCSI controller in the Lasi chip found in
1004	  many PA-RISC workstations & servers.  If you do not know whether you
1005	  have a Lasi chip, it is safe to say "Y" here.
1006
1007config SCSI_SNI_53C710
1008	tristate "SNI RM SCSI support for 53c710"
1009	depends on SNI_RM && SCSI
1010	select SCSI_SPI_ATTRS
1011	select 53C700_LE_ON_BE
1012	help
1013	  This is a driver for the onboard SCSI controller found in older
1014	  SNI RM workstations & servers.
1015
1016config 53C700_LE_ON_BE
1017	bool
1018	depends on SCSI_LASI700
1019	default y
1020
1021config SCSI_STEX
1022	tristate "Promise SuperTrak EX Series support"
1023	depends on PCI && SCSI
1024	---help---
1025	  This driver supports Promise SuperTrak EX series storage controllers.
1026
1027	  Promise provides Linux RAID configuration utility for these
1028	  controllers. Please visit <http://www.promise.com> to download.
1029
1030	  To compile this driver as a module, choose M here: the
1031	  module will be called stex.
1032
1033config 53C700_BE_BUS
1034	bool
1035	depends on SCSI_A4000T || SCSI_ZORRO7XX || MVME16x_SCSI || BVME6000_SCSI
1036	default y
1037
1038config SCSI_SYM53C8XX_2
1039	tristate "SYM53C8XX Version 2 SCSI support"
1040	depends on PCI && SCSI
1041	select SCSI_SPI_ATTRS
1042	---help---
1043	  This driver supports the whole NCR53C8XX/SYM53C8XX family of
1044	  PCI-SCSI controllers.  It also supports the subset of LSI53C10XX
1045	  Ultra-160 controllers that are based on the SYM53C8XX SCRIPTS
1046	  language.  It does not support LSI53C10XX Ultra-320 PCI-X SCSI
1047	  controllers; you need to use the Fusion MPT driver for that.
1048
1049	  Please read <file:Documentation/scsi/sym53c8xx_2.txt> for more
1050	  information.
1051
1052config SCSI_SYM53C8XX_DMA_ADDRESSING_MODE
1053	int "DMA addressing mode"
1054	depends on SCSI_SYM53C8XX_2
1055	default "1"
1056	---help---
1057	  This option only applies to PCI-SCSI chips that are PCI DAC
1058	  capable (875A, 895A, 896, 1010-33, 1010-66, 1000).
1059
1060	  When set to 0, the driver will program the chip to only perform
1061	  32-bit DMA.  When set to 1, the chip will be able to perform DMA
1062	  to addresses up to 1TB.  When set to 2, the driver supports the
1063	  full 64-bit DMA address range, but can only address 16 segments
1064	  of 4 GB each.  This limits the total addressable range to 64 GB.
1065
1066	  Most machines with less than 4GB of memory should use a setting
1067	  of 0 for best performance.  If your machine has 4GB of memory
1068	  or more, you should set this option to 1 (the default).
1069
1070	  The still experimental value 2 (64 bit DMA addressing with 16
1071	  x 4GB segments limitation) can be used on systems that require
1072	  PCI address bits past bit 39 to be set for the addressing of
1073	  memory using PCI DAC cycles.
1074
1075config SCSI_SYM53C8XX_DEFAULT_TAGS
1076	int "Default tagged command queue depth"
1077	depends on SCSI_SYM53C8XX_2
1078	default "16"
1079	help
1080	  This is the default value of the command queue depth the
1081	  driver will announce to the generic SCSI layer for devices
1082	  that support tagged command queueing. This value can be changed
1083	  from the boot command line.  This is a soft limit that cannot
1084	  exceed CONFIG_SCSI_SYM53C8XX_MAX_TAGS.
1085
1086config SCSI_SYM53C8XX_MAX_TAGS
1087	int "Maximum number of queued commands"
1088	depends on SCSI_SYM53C8XX_2
1089	default "64"
1090	help
1091	  This option allows you to specify the maximum number of commands
1092	  that can be queued to any device, when tagged command queuing is
1093	  possible. The driver supports up to 256 queued commands per device.
1094	  This value is used as a compiled-in hard limit.
1095
1096config SCSI_SYM53C8XX_MMIO
1097	bool "Use memory mapped IO"
1098	depends on SCSI_SYM53C8XX_2
1099	default y
1100	help
1101	  Memory mapped IO is faster than Port IO.  Most people should
1102	  answer Y here, but some machines may have problems.  If you have
1103	  to answer N here, please report the problem to the maintainer.
1104
1105config SCSI_IPR
1106	tristate "IBM Power Linux RAID adapter support"
1107	depends on PCI && SCSI && ATA
1108	select FW_LOADER
1109	select IRQ_POLL
1110	---help---
1111	  This driver supports the IBM Power Linux family RAID adapters.
1112	  This includes IBM pSeries 5712, 5703, 5709, and 570A, as well
1113	  as IBM iSeries 5702, 5703, 5709, and 570A.
1114
1115config SCSI_IPR_TRACE
1116	bool "enable driver internal trace"
1117	depends on SCSI_IPR
1118	default y
1119	help
1120	  If you say Y here, the driver will trace all commands issued
1121	  to the adapter. Performance impact is minimal. Trace can be
1122	  dumped using /sys/bus/class/scsi_host/hostXX/trace.
1123
1124config SCSI_IPR_DUMP
1125	bool "enable adapter dump support"
1126	depends on SCSI_IPR
1127	default y
1128	help
1129	  If you say Y here, the driver will support adapter crash dump.
1130	  If you enable this support, the iprdump daemon can be used
1131	  to capture adapter failure analysis information.
1132
1133config SCSI_ZALON
1134	tristate "Zalon SCSI support"
1135	depends on GSC && SCSI
1136	select SCSI_SPI_ATTRS
1137	help
1138	  The Zalon is a GSC/HSC bus interface chip that sits between the
1139	  PA-RISC processor and the NCR 53c720 SCSI controller on C100,
1140	  C110, J200, J210 and some D, K & R-class machines.  It's also
1141	  used on the add-in Bluefish, Barracuda & Shrike SCSI cards.
1142	  Say Y here if you have one of these machines or cards.
1143
1144config SCSI_NCR_Q720
1145	tristate "NCR Quad 720 MCA SCSI support"
1146	depends on MCA && SCSI
1147	select SCSI_SPI_ATTRS
1148	help
1149	  This is a driver for the MicroChannel Quad 720 card produced by
1150	  NCR and commonly used in 345x/35xx/4100 class machines.  It always
1151	  tries to negotiate sync and uses tag command queueing.
1152
1153	  Unless you have an NCR manufactured machine, the chances are that
1154	  you do not have this SCSI card, so say N.
1155
1156config SCSI_NCR53C8XX_DEFAULT_TAGS
1157	int "default tagged command queue depth"
1158	depends on SCSI_ZALON || SCSI_NCR_Q720
1159	default "8"
1160	---help---
1161	  "Tagged command queuing" is a feature of SCSI-2 which improves
1162	  performance: the host adapter can send several SCSI commands to a
1163	  device's queue even if previous commands haven't finished yet.
1164	  Because the device is intelligent, it can optimize its operations
1165	  (like head positioning) based on its own request queue. Some SCSI
1166	  devices don't implement this properly; if you want to disable this
1167	  feature, enter 0 or 1 here (it doesn't matter which).
1168
1169	  The default value is 8 and should be supported by most hard disks.
1170	  This value can be overridden from the boot command line using the
1171	  'tags' option as follows (example):
1172	  'ncr53c8xx=tags:4/t2t3q16/t0u2q10' will set default queue depth to
1173	  4, set queue depth to 16 for target 2 and target 3 on controller 0
1174	  and set queue depth to 10 for target 0 / lun 2 on controller 1.
1175
1176	  The normal answer therefore is to go with the default 8 and to use
1177	  a boot command line option for devices that need to use a different
1178	  command queue depth.
1179
1180	  There is no safe option other than using good SCSI devices.
1181
1182config SCSI_NCR53C8XX_MAX_TAGS
1183	int "maximum number of queued commands"
1184	depends on SCSI_ZALON || SCSI_NCR_Q720
1185	default "32"
1186	---help---
1187	  This option allows you to specify the maximum number of commands
1188	  that can be queued to any device, when tagged command queuing is
1189	  possible. The default value is 32. Minimum is 2, maximum is 64.
1190	  Modern hard disks are able to support 64 tags and even more, but
1191	  do not seem to be faster when more than 32 tags are being used.
1192
1193	  So, the normal answer here is to go with the default value 32 unless
1194	  you are using very large hard disks with large cache (>= 1 MB) that
1195	  are able to take advantage of more than 32 tagged commands.
1196
1197	  There is no safe option and the default answer is recommended.
1198
1199config SCSI_NCR53C8XX_SYNC
1200	int "synchronous transfers frequency in MHz"
1201	depends on SCSI_ZALON || SCSI_NCR_Q720
1202	default "20"
1203	---help---
1204	  The SCSI Parallel Interface-2 Standard defines 5 classes of transfer
1205	  rates: FAST-5, FAST-10, FAST-20, FAST-40 and FAST-80.  The numbers
1206	  are respectively the maximum data transfer rates in mega-transfers
1207	  per second for each class.  For example, a FAST-20 Wide 16 device is
1208	  able to transfer data at 20 million 16 bit packets per second for a
1209	  total rate of 40 MB/s.
1210
1211	  You may specify 0 if you want to only use asynchronous data
1212	  transfers. This is the safest and slowest option. Otherwise, specify
1213	  a value between 5 and 80, depending on the capability of your SCSI
1214	  controller.  The higher the number, the faster the data transfer.
1215	  Note that 80 should normally be ok since the driver decreases the
1216	  value automatically according to the controller's capabilities.
1217
1218	  Your answer to this question is ignored for controllers with NVRAM,
1219	  since the driver will get this information from the user set-up.  It
1220	  also can be overridden using a boot setup option, as follows
1221	  (example): 'ncr53c8xx=sync:12' will allow the driver to negotiate
1222	  for FAST-20 synchronous data transfer (20 mega-transfers per
1223	  second).
1224
1225	  The normal answer therefore is not to go with the default but to
1226	  select the maximum value 80 allowing the driver to use the maximum
1227	  value supported by each controller. If this causes problems with
1228	  your SCSI devices, you should come back and decrease the value.
1229
1230	  There is no safe option other than using good cabling, right
1231	  terminations and SCSI conformant devices.
1232
1233config SCSI_NCR53C8XX_NO_DISCONNECT
1234	bool "not allow targets to disconnect"
1235	depends on (SCSI_ZALON || SCSI_NCR_Q720) && SCSI_NCR53C8XX_DEFAULT_TAGS=0
1236	help
1237	  This option is only provided for safety if you suspect some SCSI
1238	  device of yours to not support properly the target-disconnect
1239	  feature. In that case, you would say Y here. In general however, to
1240	  not allow targets to disconnect is not reasonable if there is more
1241	  than 1 device on a SCSI bus. The normal answer therefore is N.
1242
1243config SCSI_PAS16
1244	tristate "PAS16 SCSI support"
1245	depends on ISA && SCSI
1246	select SCSI_SPI_ATTRS
1247	---help---
1248	  This is support for a SCSI host adapter.  It is explained in section
1249	  3.10 of the SCSI-HOWTO, available from
1250	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
1251	  of the box, you may have to change some settings in
1252	  <file:drivers/scsi/pas16.h>.
1253
1254	  To compile this driver as a module, choose M here: the
1255	  module will be called pas16.
1256
1257config SCSI_QLOGIC_FAS
1258	tristate "Qlogic FAS SCSI support"
1259	depends on ISA && SCSI
1260	---help---
1261	  This is a driver for the ISA, VLB, and PCMCIA versions of the Qlogic
1262	  FastSCSI! cards as well as any other card based on the FASXX chip
1263	  (including the Control Concepts SCSI/IDE/SIO/PIO/FDC cards).
1264
1265	  This driver does NOT support the PCI versions of these cards. The
1266	  PCI versions are supported by the Qlogic ISP driver ("Qlogic ISP
1267	  SCSI support"), below.
1268
1269	  Information about this driver is contained in
1270	  <file:Documentation/scsi/qlogicfas.txt>.  You should also read the
1271	  SCSI-HOWTO, available from
1272	  <http://www.tldp.org/docs.html#howto>.
1273
1274	  To compile this driver as a module, choose M here: the
1275	  module will be called qlogicfas.
1276
1277config SCSI_QLOGIC_1280
1278	tristate "Qlogic QLA 1240/1x80/1x160 SCSI support"
1279	depends on PCI && SCSI
1280	help
1281	  Say Y if you have a QLogic ISP1240/1x80/1x160 SCSI host adapter.
1282
1283	  To compile this driver as a module, choose M here: the
1284	  module will be called qla1280.
1285
1286config SCSI_QLOGICPTI
1287	tristate "PTI Qlogic, ISP Driver"
1288	depends on SBUS && SCSI
1289	help
1290	  This driver supports SBUS SCSI controllers from PTI or QLogic. These
1291	  controllers are known under Solaris as qpti and in the openprom as
1292	  PTI,ptisp or QLGC,isp. Note that PCI QLogic SCSI controllers are
1293	  driven by a different driver.
1294
1295	  To compile this driver as a module, choose M here: the
1296	  module will be called qlogicpti.
1297
1298source "drivers/scsi/qla2xxx/Kconfig"
1299source "drivers/scsi/qla4xxx/Kconfig"
1300
1301config SCSI_LPFC
1302	tristate "Emulex LightPulse Fibre Channel Support"
1303	depends on PCI && SCSI
1304	depends on SCSI_FC_ATTRS
1305	select CRC_T10DIF
1306	help
1307          This lpfc driver supports the Emulex LightPulse
1308          Family of Fibre Channel PCI host adapters.
1309
1310config SCSI_LPFC_DEBUG_FS
1311	bool "Emulex LightPulse Fibre Channel debugfs Support"
1312	depends on SCSI_LPFC && DEBUG_FS
1313	help
1314	  This makes debugging information from the lpfc driver
1315	  available via the debugfs filesystem.
1316
1317config SCSI_SIM710
1318	tristate "Simple 53c710 SCSI support (Compaq, NCR machines)"
1319	depends on (EISA || MCA) && SCSI
1320	select SCSI_SPI_ATTRS
1321	---help---
1322	  This driver is for NCR53c710 based SCSI host adapters.
1323
1324	  It currently supports Compaq EISA cards and NCR MCA cards
1325
1326config SCSI_SYM53C416
1327	tristate "Symbios 53c416 SCSI support"
1328	depends on ISA && SCSI
1329	---help---
1330	  This is support for the sym53c416 SCSI host adapter, the SCSI
1331	  adapter that comes with some HP scanners. This driver requires that
1332	  the sym53c416 is configured first using some sort of PnP
1333	  configuration program (e.g. isapnp) or by a PnP aware BIOS. If you
1334	  are using isapnp then you need to compile this driver as a module
1335	  and then load it using insmod after isapnp has run. The parameters
1336	  of the configured card(s) should be passed to the driver. The format
1337	  is:
1338
1339	  insmod sym53c416 sym53c416=<base>,<irq> [sym53c416_1=<base>,<irq>]
1340
1341	  To compile this driver as a module, choose M here: the
1342	  module will be called sym53c416.
1343
1344config SCSI_DC395x
1345	tristate "Tekram DC395(U/UW/F) and DC315(U) SCSI support"
1346	depends on PCI && SCSI
1347	---help---
1348	  This driver supports PCI SCSI host adapters based on the ASIC
1349	  TRM-S1040 chip, e.g Tekram DC395(U/UW/F) and DC315(U) variants.
1350
1351	  This driver works, but is still in experimental status. So better
1352	  have a bootable disk and a backup in case of emergency.
1353
1354	  Documentation can be found in <file:Documentation/scsi/dc395x.txt>.
1355
1356	  To compile this driver as a module, choose M here: the
1357	  module will be called dc395x.
1358
1359config SCSI_AM53C974
1360	tristate "Tekram DC390(T) and Am53/79C974 SCSI support (new driver)"
1361	depends on PCI && SCSI
1362	select SCSI_SPI_ATTRS
1363	---help---
1364	  This driver supports PCI SCSI host adapters based on the Am53C974A
1365	  chip, e.g. Tekram DC390(T), DawiControl 2974 and some onboard
1366	  PCscsi/PCnet (Am53/79C974) solutions.
1367	  This is a new implementation base on the generic esp_scsi driver.
1368
1369	  Documentation can be found in <file:Documentation/scsi/tmscsim.txt>.
1370
1371	  Note that this driver does NOT support Tekram DC390W/U/F, which are
1372	  based on NCR/Symbios chips. Use "NCR53C8XX SCSI support" for those.
1373
1374	  To compile this driver as a module, choose M here: the
1375	  module will be called am53c974.
1376
1377config SCSI_T128
1378	tristate "Trantor T128/T128F/T228 SCSI support"
1379	depends on ISA && SCSI
1380	select SCSI_SPI_ATTRS
1381	select CHECK_SIGNATURE
1382	---help---
1383	  This is support for a SCSI host adapter. It is explained in section
1384	  3.11 of the SCSI-HOWTO, available from
1385	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
1386	  of the box, you may have to change some settings in
1387	  <file:drivers/scsi/t128.h>.  Note that Trantor was purchased by
1388	  Adaptec, and some former Trantor products are being sold under the
1389	  Adaptec name.
1390
1391	  To compile this driver as a module, choose M here: the
1392	  module will be called t128.
1393
1394config SCSI_U14_34F
1395	tristate "UltraStor 14F/34F support"
1396	depends on ISA && SCSI && ISA_DMA_API
1397	---help---
1398	  This is support for the UltraStor 14F and 34F SCSI-2 host adapters.
1399	  The source at <file:drivers/scsi/u14-34f.c> contains some
1400	  information about this hardware.  If the driver doesn't work out of
1401	  the box, you may have to change some settings in
1402	  <file: drivers/scsi/u14-34f.c>.  Read the SCSI-HOWTO, available from
1403	  <http://www.tldp.org/docs.html#howto>.  Note that there is also
1404	  another driver for the same hardware: "UltraStor SCSI support",
1405	  below.  You should say Y to both only if you want 24F support as
1406	  well.
1407
1408	  To compile this driver as a module, choose M here: the
1409	  module will be called u14-34f.
1410
1411config SCSI_U14_34F_TAGGED_QUEUE
1412	bool "enable tagged command queueing"
1413	depends on SCSI_U14_34F
1414	help
1415	  This is a feature of SCSI-2 which improves performance: the host
1416	  adapter can send several SCSI commands to a device's queue even if
1417	  previous commands haven't finished yet.
1418	  This is equivalent to the "u14-34f=tc:y" boot option.
1419
1420config SCSI_U14_34F_LINKED_COMMANDS
1421	bool "enable elevator sorting"
1422	depends on SCSI_U14_34F
1423	help
1424	  This option enables elevator sorting for all probed SCSI disks and
1425	  CD-ROMs. It definitely reduces the average seek distance when doing
1426	  random seeks, but this does not necessarily result in a noticeable
1427	  performance improvement: your mileage may vary...
1428	  This is equivalent to the "u14-34f=lc:y" boot option.
1429
1430config SCSI_U14_34F_MAX_TAGS
1431	int "maximum number of queued commands"
1432	depends on SCSI_U14_34F
1433	default "8"
1434	help
1435	  This specifies how many SCSI commands can be maximally queued for
1436	  each probed SCSI device. You should reduce the default value of 8
1437	  only if you have disks with buggy or limited tagged command support.
1438	  Minimum is 2 and maximum is 14. This value is also the window size
1439	  used by the elevator sorting option above. The effective value used
1440	  by the driver for each probed SCSI device is reported at boot time.
1441	  This is equivalent to the "u14-34f=mq:8" boot option.
1442
1443config SCSI_ULTRASTOR
1444	tristate "UltraStor SCSI support"
1445	depends on X86 && ISA && SCSI
1446	---help---
1447	  This is support for the UltraStor 14F, 24F and 34F SCSI-2 host
1448	  adapter family.  This driver is explained in section 3.12 of the
1449	  SCSI-HOWTO, available from
1450	  <http://www.tldp.org/docs.html#howto>.  If it doesn't work out
1451	  of the box, you may have to change some settings in
1452	  <file:drivers/scsi/ultrastor.h>.
1453
1454	  Note that there is also another driver for the same hardware:
1455	  "UltraStor 14F/34F support", above.
1456
1457	  To compile this driver as a module, choose M here: the
1458	  module will be called ultrastor.
1459
1460config SCSI_NSP32
1461	tristate "Workbit NinjaSCSI-32Bi/UDE support"
1462	depends on PCI && SCSI && !64BIT
1463	help
1464	  This is support for the Workbit NinjaSCSI-32Bi/UDE PCI/Cardbus
1465	  SCSI host adapter. Please read the SCSI-HOWTO, available from
1466	  <http://www.tldp.org/docs.html#howto>.
1467
1468	  To compile this driver as a module, choose M here: the
1469	  module will be called nsp32.
1470
1471config SCSI_WD719X
1472	tristate "Western Digital WD7193/7197/7296 support"
1473	depends on PCI && SCSI
1474	select EEPROM_93CX6
1475	---help---
1476	  This is a driver for Western Digital WD7193, WD7197 and WD7296 PCI
1477	  SCSI controllers (based on WD33C296A chip).
1478
1479config SCSI_DEBUG
1480	tristate "SCSI debugging host and device simulator"
1481	depends on SCSI
1482	select CRC_T10DIF
1483	help
1484	  This pseudo driver simulates one or more hosts (SCSI initiators),
1485	  each with one or more targets, each with one or more logical units.
1486	  Defaults to one of each, creating a small RAM disk device. Many
1487	  parameters found in the /sys/bus/pseudo/drivers/scsi_debug
1488	  directory can be tweaked at run time.
1489	  See <http://sg.danny.cz/sg/sdebug26.html> for more information.
1490	  Mainly used for testing and best as a module. If unsure, say N.
1491
1492config SCSI_MESH
1493	tristate "MESH (Power Mac internal SCSI) support"
1494	depends on PPC32 && PPC_PMAC && SCSI
1495	help
1496	  Many Power Macintoshes and clones have a MESH (Macintosh Enhanced
1497	  SCSI Hardware) SCSI bus adaptor (the 7200 doesn't, but all of the
1498	  other Power Macintoshes do). Say Y to include support for this SCSI
1499	  adaptor.
1500
1501	  To compile this driver as a module, choose M here: the
1502	  module will be called mesh.
1503
1504config SCSI_MESH_SYNC_RATE
1505	int "maximum synchronous transfer rate (MB/s) (0 = async)"
1506	depends on SCSI_MESH
1507	default "5"
1508	help
1509	  On Power Macintoshes (and clones) where the MESH SCSI bus adaptor
1510	  drives a bus which is entirely internal to the machine (such as the
1511	  7500, 7600, 8500, etc.), the MESH is capable of synchronous
1512	  operation at up to 10 MB/s. On machines where the SCSI bus
1513	  controlled by the MESH can have external devices connected, it is
1514	  usually rated at 5 MB/s. 5 is a safe value here unless you know the
1515	  MESH SCSI bus is internal only; in that case you can say 10. Say 0
1516	  to disable synchronous operation.
1517
1518config SCSI_MESH_RESET_DELAY_MS
1519	int "initial bus reset delay (ms) (0 = no reset)"
1520	depends on SCSI_MESH
1521	default "4000"
1522
1523config SCSI_MAC53C94
1524	tristate "53C94 (Power Mac external SCSI) support"
1525	depends on PPC32 && PPC_PMAC && SCSI
1526	help
1527	  On Power Macintoshes (and clones) with two SCSI buses, the external
1528	  SCSI bus is usually controlled by a 53C94 SCSI bus adaptor. Older
1529	  machines which only have one SCSI bus, such as the 7200, also use
1530	  the 53C94. Say Y to include support for the 53C94.
1531
1532	  To compile this driver as a module, choose M here: the
1533	  module will be called mac53c94.
1534
1535source "drivers/scsi/arm/Kconfig"
1536
1537config JAZZ_ESP
1538	bool "MIPS JAZZ FAS216 SCSI support"
1539	depends on MACH_JAZZ && SCSI
1540	select SCSI_SPI_ATTRS
1541	help
1542	  This is the driver for the onboard SCSI host adapter of MIPS Magnum
1543	  4000, Acer PICA, Olivetti M700-10 and a few other identical OEM
1544	  systems.
1545
1546config A3000_SCSI
1547	tristate "A3000 WD33C93A support"
1548	depends on AMIGA && SCSI
1549	help
1550	  If you have an Amiga 3000 and have SCSI devices connected to the
1551	  built-in SCSI controller, say Y. Otherwise, say N.
1552
1553	  To compile this driver as a module, choose M here: the
1554	  module will be called a3000.
1555
1556config A2091_SCSI
1557	tristate "A2091/A590 WD33C93A support"
1558	depends on ZORRO && SCSI
1559	help
1560	  If you have a Commodore A2091 SCSI controller, say Y. Otherwise,
1561	  say N.
1562
1563	  To compile this driver as a module, choose M here: the
1564	  module will be called a2091.
1565
1566config GVP11_SCSI
1567	tristate "GVP Series II WD33C93A support"
1568	depends on ZORRO && SCSI
1569	---help---
1570	  If you have a Great Valley Products Series II SCSI controller,
1571	  answer Y. Also say Y if you have a later model of GVP SCSI
1572	  controller (such as the GVP A4008 or a Combo board). Otherwise,
1573	  answer N. This driver does NOT work for the T-Rex series of
1574	  accelerators from TekMagic and GVP-M.
1575
1576	  To compile this driver as a module, choose M here: the
1577	  module will be called gvp11.
1578
1579config SCSI_A4000T
1580	tristate "A4000T NCR53c710 SCSI support"
1581	depends on AMIGA && SCSI
1582	select SCSI_SPI_ATTRS
1583	help
1584	  If you have an Amiga 4000T and have SCSI devices connected to the
1585	  built-in SCSI controller, say Y. Otherwise, say N.
1586
1587	  To compile this driver as a module, choose M here: the
1588	  module will be called a4000t.
1589
1590config SCSI_ZORRO7XX
1591	tristate "Zorro NCR53c710 SCSI support"
1592	depends on ZORRO && SCSI
1593	select SCSI_SPI_ATTRS
1594	help
1595	  Support for various NCR53c710-based SCSI controllers on Zorro
1596	  expansion boards for the Amiga.
1597	  This includes:
1598	    - the Amiga 4091 Zorro III SCSI-2 controller,
1599	    - the MacroSystem Development's WarpEngine Amiga SCSI-2 controller
1600	      (info at
1601	      <http://www.lysator.liu.se/amiga/ar/guide/ar310.guide?FEATURE5>),
1602	    - the SCSI controller on the Phase5 Blizzard PowerUP 603e+
1603	      accelerator card for the Amiga 1200,
1604	    - the SCSI controller on the GVP Turbo 040/060 accelerator.
1605
1606config ATARI_SCSI
1607	tristate "Atari native SCSI support"
1608	depends on ATARI && SCSI
1609	select SCSI_SPI_ATTRS
1610	select NVRAM
1611	---help---
1612	  If you have an Atari with built-in NCR5380 SCSI controller (TT,
1613	  Falcon, ...) say Y to get it supported. Of course also, if you have
1614	  a compatible SCSI controller (e.g. for Medusa).
1615
1616	  To compile this driver as a module, choose M here: the
1617	  module will be called atari_scsi.
1618
1619	  This driver supports both styles of NCR integration into the
1620	  system: the TT style (separate DMA), and the Falcon style (via
1621	  ST-DMA, replacing ACSI).  It does NOT support other schemes, like
1622	  in the Hades (without DMA).
1623
1624config MAC_SCSI
1625	tristate "Macintosh NCR5380 SCSI"
1626	depends on MAC && SCSI=y
1627	select SCSI_SPI_ATTRS
1628	help
1629	  This is the NCR 5380 SCSI controller included on most of the 68030
1630	  based Macintoshes.  If you have one of these say Y and read the
1631	  SCSI-HOWTO, available from
1632	  <http://www.tldp.org/docs.html#howto>.
1633
1634config SCSI_MAC_ESP
1635	tristate "Macintosh NCR53c9[46] SCSI"
1636	depends on MAC && SCSI
1637	select SCSI_SPI_ATTRS
1638	help
1639	  This is the NCR 53c9x SCSI controller found on most of the 68040
1640	  based Macintoshes.
1641
1642	  To compile this driver as a module, choose M here: the module
1643	  will be called mac_esp.
1644
1645config MVME147_SCSI
1646	bool "WD33C93 SCSI driver for MVME147"
1647	depends on MVME147 && SCSI=y
1648	select SCSI_SPI_ATTRS
1649	help
1650	  Support for the on-board SCSI controller on the Motorola MVME147
1651	  single-board computer.
1652
1653config MVME16x_SCSI
1654	tristate "NCR53C710 SCSI driver for MVME16x"
1655	depends on MVME16x && SCSI
1656	select SCSI_SPI_ATTRS
1657	help
1658	  The Motorola MVME162, 166, 167, 172 and 177 boards use the NCR53C710
1659	  SCSI controller chip.  Almost everyone using one of these boards
1660	  will want to say Y to this question.
1661
1662config BVME6000_SCSI
1663	tristate "NCR53C710 SCSI driver for BVME6000"
1664	depends on BVME6000 && SCSI
1665	select SCSI_SPI_ATTRS
1666	help
1667	  The BVME4000 and BVME6000 boards from BVM Ltd use the NCR53C710
1668	  SCSI controller chip.  Almost everyone using one of these boards
1669	  will want to say Y to this question.
1670
1671config SUN3_SCSI
1672	tristate "Sun3 NCR5380 SCSI"
1673	depends on SUN3 && SCSI
1674	select SCSI_SPI_ATTRS
1675	help
1676	  This option will enable support for the OBIO (onboard io) NCR5380
1677	  SCSI controller found in the Sun 3/50 and 3/60, as well as for
1678	  "Sun3" type VME scsi controllers also based on the NCR5380.
1679	  General Linux information on the Sun 3 series (now discontinued)
1680	  is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
1681
1682config SUN3X_ESP
1683	bool "Sun3x ESP SCSI"
1684	depends on SUN3X && SCSI=y
1685	select SCSI_SPI_ATTRS
1686	help
1687	  The ESP was an on-board SCSI controller used on Sun 3/80
1688	  machines.  Say Y here to compile in support for it.
1689
1690config SCSI_SUNESP
1691	tristate "Sparc ESP Scsi Driver"
1692	depends on SBUS && SCSI
1693	select SCSI_SPI_ATTRS
1694	help
1695	  This is the driver for the Sun ESP SCSI host adapter. The ESP
1696	  chipset is present in most SPARC SBUS-based computers and
1697	  supports the Emulex family of ESP SCSI chips (esp100, esp100A,
1698	  esp236, fas101, fas236) as well as the Qlogic fas366 SCSI chip.
1699
1700	  To compile this driver as a module, choose M here: the
1701	  module will be called sun_esp.
1702
1703config ZFCP
1704	tristate "FCP host bus adapter driver for IBM eServer zSeries"
1705	depends on S390 && QDIO && SCSI
1706	depends on SCSI_FC_ATTRS
1707	help
1708          If you want to access SCSI devices attached to your IBM eServer
1709          zSeries by means of Fibre Channel interfaces say Y.
1710          For details please refer to the documentation provided by IBM at
1711          <http://oss.software.ibm.com/developerworks/opensource/linux390>
1712
1713          This driver is also available as a module. This module will be
1714          called zfcp. If you want to compile it as a module, say M here
1715          and read <file:Documentation/kbuild/modules.txt>.
1716
1717config SCSI_PMCRAID
1718	tristate "PMC SIERRA Linux MaxRAID adapter support"
1719	depends on PCI && SCSI && NET
1720	---help---
1721	  This driver supports the PMC SIERRA MaxRAID adapters.
1722
1723config SCSI_PM8001
1724	tristate "PMC-Sierra SPC 8001 SAS/SATA Based Host Adapter driver"
1725	depends on PCI && SCSI
1726	select SCSI_SAS_LIBSAS
1727	help
1728	  This driver supports PMC-Sierra PCIE SAS/SATA 8x6G SPC 8001 chip
1729	  based host adapters.
1730
1731config SCSI_BFA_FC
1732	tristate "Brocade BFA Fibre Channel Support"
1733	depends on PCI && SCSI
1734	depends on SCSI_FC_ATTRS
1735	help
1736	  This bfa driver supports all Brocade PCIe FC/FCOE host adapters.
1737
1738	  To compile this driver as a module, choose M here. The module will
1739	  be called bfa.
1740
1741config SCSI_VIRTIO
1742	tristate "virtio-scsi support"
1743	depends on VIRTIO
1744	help
1745          This is the virtual HBA driver for virtio.  If the kernel will
1746          be used in a virtual machine, say Y or M.
1747
1748source "drivers/scsi/csiostor/Kconfig"
1749
1750endif # SCSI_LOWLEVEL
1751
1752source "drivers/scsi/pcmcia/Kconfig"
1753
1754source "drivers/scsi/device_handler/Kconfig"
1755
1756source "drivers/scsi/osd/Kconfig"
1757
1758endmenu
1759