# SPDX-License-Identifier: GPL-2.0-only menu "SCSI device support" config SCSI_MOD tristate default y if SCSI=n || SCSI=y default m if SCSI=m config RAID_ATTRS tristate "RAID Transport Class" default n depends on BLOCK depends on SCSI_MOD ---help--- Provides RAID config SCSI tristate "SCSI device support" depends on BLOCK select SCSI_DMA if HAS_DMA select SG_POOL select BLK_SCSI_REQUEST ---help--- If you want to use a SCSI hard disk, SCSI tape drive, SCSI CD-ROM or any other SCSI device under Linux, say Y and make sure that you know the name of your SCSI host adapter (the card inside your computer that "speaks" the SCSI protocol, also called SCSI controller), because you will be asked for it. You also need to say Y here if you have a device which speaks the SCSI protocol. Examples of this include the parallel port version of the IOMEGA ZIP drive, USB storage devices, Fibre Channel, and FireWire storage. To compile this driver as a module, choose M here and read . The module will be called scsi_mod. However, do not compile this as a module if your root file system (the one containing the directory /) is located on a SCSI device. config SCSI_DMA bool default n config SCSI_ESP_PIO bool config SCSI_NETLINK bool default n depends on NET config SCSI_PROC_FS bool "legacy /proc/scsi/ support" depends on SCSI && PROC_FS default y ---help--- This option enables support for the various files in /proc/scsi. In Linux 2.6 this has been superseded by files in sysfs but many legacy applications rely on this. If unsure say Y. comment "SCSI support type (disk, tape, CD-ROM)" depends on SCSI config BLK_DEV_SD tristate "SCSI disk support" depends on SCSI ---help--- If you want to use SCSI hard disks, Fibre Channel disks, Serial ATA (SATA) or Parallel ATA (PATA) hard disks, USB storage or the SCSI or parallel port version of the IOMEGA ZIP drive, say Y and read the SCSI-HOWTO, the Disk-HOWTO and the Multi-Disk-HOWTO, available from . This is NOT for SCSI CD-ROMs. To compile this driver as a module, choose M here and read . The module will be called sd_mod. Do not compile this driver as a module if your root file system (the one containing the directory /) is located on a SCSI disk. In this case, do not compile the driver for your SCSI host adapter (below) as a module either. config CHR_DEV_ST tristate "SCSI tape support" depends on SCSI ---help--- If you want to use a SCSI tape drive under Linux, say Y and read the SCSI-HOWTO, available from , and in the kernel source. This is NOT for SCSI CD-ROMs. To compile this driver as a module, choose M here and read . The module will be called st. config BLK_DEV_SR tristate "SCSI CDROM support" depends on SCSI && BLK_DEV select CDROM ---help--- If you want to use a CD or DVD drive attached to your computer by SCSI, FireWire, USB or ATAPI, say Y and read the SCSI-HOWTO and the CDROM-HOWTO at . Make sure to say Y or M to "ISO 9660 CD-ROM file system support". To compile this driver as a module, choose M here and read . The module will be called sr_mod. config CHR_DEV_SG tristate "SCSI generic support" depends on SCSI ---help--- If you want to use SCSI scanners, synthesizers or CD-writers or just about anything having "SCSI" in its name other than hard disks, CD-ROMs or tapes, say Y here. These won't be supported by the kernel directly, so you need some additional software which knows how to talk to these devices using the SCSI protocol: For scanners, look at SANE (). For CD writer software look at Cdrtools () and for burning a "disk at once": CDRDAO (). Cdparanoia is a high quality digital reader of audio CDs (). For other devices, it's possible that you'll have to write the driver software yourself. Please read the file for more information. To compile this driver as a module, choose M here and read . The module will be called sg. If unsure, say N. config CHR_DEV_SCH tristate "SCSI media changer support" depends on SCSI ---help--- This is a driver for SCSI media changers. Most common devices are tape libraries and MOD/CDROM jukeboxes. *Real* jukeboxes, you don't need this for those tiny 6-slot cdrom changers. Media changers are listed as "Type: Medium Changer" in /proc/scsi/scsi. If you have such hardware and want to use it with linux, say Y here. Check for details. If you want to compile this as a module ( = code which can be inserted in and removed from the running kernel whenever you want), say M here and read and . The module will be called ch.o. If unsure, say N. config SCSI_ENCLOSURE tristate "SCSI Enclosure Support" depends on SCSI && ENCLOSURE_SERVICES depends on m || SCSI_SAS_ATTRS != m help Enclosures are devices sitting on or in SCSI backplanes that manage devices. If you have a disk cage, the chances are that it has an enclosure device. Selecting this option will just allow certain enclosure conditions to be reported and is not required. config SCSI_CONSTANTS bool "Verbose SCSI error reporting (kernel size += 36K)" depends on SCSI help The error messages regarding your SCSI hardware will be easier to understand if you say Y here; it will enlarge your kernel by about 36 KB. If in doubt, say Y. config SCSI_LOGGING bool "SCSI logging facility" depends on SCSI ---help--- This turns on a logging facility that can be used to debug a number of SCSI related problems. If you say Y here, no logging output will appear by default, but you can enable logging by saying Y to "/proc file system support" and "Sysctl support" below and executing the command echo > /proc/sys/dev/scsi/logging_level where is a four byte value representing the logging type and logging level for each type of logging selected. There are a number of logging types and you can find them in the source at . The logging levels are also described in that file and they determine the verbosity of the logging for each logging type. If you say N here, it may be harder to track down some types of SCSI problems. If you say Y here your kernel will be somewhat larger, but there should be no noticeable performance impact as long as you have logging turned off. config SCSI_SCAN_ASYNC bool "Asynchronous SCSI scanning" depends on SCSI help The SCSI subsystem can probe for devices while the rest of the system continues booting, and even probe devices on different busses in parallel, leading to a significant speed-up. You can override this choice by specifying "scsi_mod.scan=sync" or async on the kernel's command line. Note that this setting also affects whether resuming from system suspend will be performed asynchronously. menu "SCSI Transports" depends on SCSI config SCSI_SPI_ATTRS tristate "Parallel SCSI (SPI) Transport Attributes" depends on SCSI help If you wish to export transport-specific information about each attached SCSI device to sysfs, say Y. Otherwise, say N. config SCSI_FC_ATTRS tristate "FiberChannel Transport Attributes" depends on SCSI && NET select BLK_DEV_BSGLIB select SCSI_NETLINK help If you wish to export transport-specific information about each attached FiberChannel device to sysfs, say Y. Otherwise, say N. config SCSI_ISCSI_ATTRS tristate "iSCSI Transport Attributes" depends on SCSI && NET select BLK_DEV_BSGLIB help If you wish to export transport-specific information about each attached iSCSI device to sysfs, say Y. Otherwise, say N. config SCSI_SAS_ATTRS tristate "SAS Transport Attributes" depends on SCSI select BLK_DEV_BSGLIB help If you wish to export transport-specific information about each attached SAS device to sysfs, say Y. source "drivers/scsi/libsas/Kconfig" config SCSI_SRP_ATTRS tristate "SRP Transport Attributes" depends on SCSI help If you wish to export transport-specific information about each attached SRP device to sysfs, say Y. endmenu menuconfig SCSI_LOWLEVEL bool "SCSI low-level drivers" depends on SCSI!=n default y if SCSI_LOWLEVEL && SCSI config ISCSI_TCP tristate "iSCSI Initiator over TCP/IP" depends on SCSI && INET select CRYPTO select CRYPTO_MD5 select CRYPTO_CRC32C select SCSI_ISCSI_ATTRS help The iSCSI Driver provides a host with the ability to access storage through an IP network. The driver uses the iSCSI protocol to transport SCSI requests and responses over a TCP/IP network between the host (the "initiator") and "targets". Architecturally, the iSCSI driver combines with the host's TCP/IP stack, network drivers, and Network Interface Card (NIC) to provide the same functions as a SCSI or a Fibre Channel (FC) adapter driver with a Host Bus Adapter (HBA). To compile this driver as a module, choose M here: the module will be called iscsi_tcp. The userspace component needed to initialize the driver, documentation, and sample configuration files can be found here: http://open-iscsi.org config ISCSI_BOOT_SYSFS tristate "iSCSI Boot Sysfs Interface" default n help This option enables support for exposing iSCSI boot information via sysfs to userspace. If you wish to export this information, say Y. Otherwise, say N. source "drivers/scsi/cxgbi/Kconfig" source "drivers/scsi/bnx2i/Kconfig" source "drivers/scsi/bnx2fc/Kconfig" source "drivers/scsi/be2iscsi/Kconfig" source "drivers/scsi/cxlflash/Kconfig" config SGIWD93_SCSI tristate "SGI WD93C93 SCSI Driver" depends on SGI_HAS_WD93 && SCSI help If you have a Western Digital WD93 SCSI controller on an SGI MIPS system, say Y. Otherwise, say N. config BLK_DEV_3W_XXXX_RAID tristate "3ware 5/6/7/8xxx ATA-RAID support" depends on PCI && SCSI help 3ware is the only hardware ATA-Raid product in Linux to date. This card is 2,4, or 8 channel master mode support only. SCSI support required!!! Please read the comments at the top of . config SCSI_HPSA tristate "HP Smart Array SCSI driver" depends on PCI && SCSI select CHECK_SIGNATURE select SCSI_SAS_ATTRS help This driver supports HP Smart Array Controllers (circa 2009). It is a SCSI alternative to the cciss driver, which is a block driver. Anyone wishing to use HP Smart Array controllers who would prefer the devices be presented to linux as SCSI devices, rather than as generic block devices should say Y here. config SCSI_3W_9XXX tristate "3ware 9xxx SATA-RAID support" depends on PCI && SCSI help This driver supports the 9000 series 3ware SATA-RAID cards. Please read the comments at the top of . config SCSI_3W_SAS tristate "3ware 97xx SAS/SATA-RAID support" depends on PCI && SCSI help This driver supports the LSI 3ware 9750 6Gb/s SAS/SATA-RAID cards. Please read the comments at the top of . config SCSI_ACARD tristate "ACARD SCSI support" depends on PCI && SCSI help This driver supports the ACARD SCSI host adapter. Support Chip To compile this driver as a module, choose M here: the module will be called atp870u. config SCSI_AHA152X tristate "Adaptec AHA152X/2825 support" depends on ISA && SCSI select SCSI_SPI_ATTRS select CHECK_SIGNATURE ---help--- This is a driver for the AHA-1510, AHA-1520, AHA-1522, and AHA-2825 SCSI host adapters. It also works for the AVA-1505, but the IRQ etc. must be manually specified in this case. It is explained in section 3.3 of the SCSI-HOWTO, available from . You might also want to read the file . To compile this driver as a module, choose M here: the module will be called aha152x. config SCSI_AHA1542 tristate "Adaptec AHA1542 support" depends on ISA && SCSI && ISA_DMA_API ---help--- This is support for a SCSI host adapter. It is explained in section 3.4 of the SCSI-HOWTO, available from . Note that Trantor was purchased by Adaptec, and some former Trantor products are being sold under the Adaptec name. If it doesn't work out of the box, you may have to change some settings in . To compile this driver as a module, choose M here: the module will be called aha1542. config SCSI_AHA1740 tristate "Adaptec AHA1740 support" depends on EISA && SCSI ---help--- This is support for a SCSI host adapter. It is explained in section 3.5 of the SCSI-HOWTO, available from . If it doesn't work out of the box, you may have to change some settings in . To compile this driver as a module, choose M here: the module will be called aha1740. config SCSI_AACRAID tristate "Adaptec AACRAID support" depends on SCSI && PCI help This driver supports a variety of Dell, HP, Adaptec, IBM and ICP storage products. For a list of supported products, refer to . To compile this driver as a module, choose M here: the module will be called aacraid. source "drivers/scsi/aic7xxx/Kconfig.aic7xxx" source "drivers/scsi/aic7xxx/Kconfig.aic79xx" source "drivers/scsi/aic94xx/Kconfig" source "drivers/scsi/hisi_sas/Kconfig" source "drivers/scsi/mvsas/Kconfig" config SCSI_MVUMI tristate "Marvell UMI driver" depends on SCSI && PCI help Module for Marvell Universal Message Interface(UMI) driver To compile this driver as a module, choose M here: the module will be called mvumi. config SCSI_DPT_I2O tristate "Adaptec I2O RAID support " depends on SCSI && PCI help This driver supports all of Adaptec's I2O based RAID controllers as well as the DPT SmartRaid V cards. This is an Adaptec maintained driver by Deanna Bonds. See . To compile this driver as a module, choose M here: the module will be called dpt_i2o. config SCSI_ADVANSYS tristate "AdvanSys SCSI support" depends on SCSI depends on ISA || EISA || PCI depends on ISA_DMA_API || !ISA help This is a driver for all SCSI host adapters manufactured by AdvanSys. It is documented in the kernel source in . To compile this driver as a module, choose M here: the module will be called advansys. config SCSI_ARCMSR tristate "ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID Host Adapter" depends on PCI && SCSI help This driver supports all of ARECA's SATA/SAS RAID controller cards. This is an ARECA-maintained driver by Erich Chen. If you have any problems, please mail to: . Areca supports Linux RAID config tools. Please link To compile this driver as a module, choose M here: the module will be called arcmsr (modprobe arcmsr). source "drivers/scsi/esas2r/Kconfig" source "drivers/scsi/megaraid/Kconfig.megaraid" source "drivers/scsi/mpt3sas/Kconfig" source "drivers/scsi/smartpqi/Kconfig" source "drivers/scsi/ufs/Kconfig" config SCSI_HPTIOP tristate "HighPoint RocketRAID 3xxx/4xxx Controller support" depends on SCSI && PCI help This option enables support for HighPoint RocketRAID 3xxx/4xxx controllers. To compile this driver as a module, choose M here; the module will be called hptiop. If unsure, say N. config SCSI_BUSLOGIC tristate "BusLogic SCSI support" depends on (PCI || ISA) && SCSI && ISA_DMA_API && VIRT_TO_BUS ---help--- This is support for BusLogic MultiMaster and FlashPoint SCSI Host Adapters. Consult the SCSI-HOWTO, available from , and the files and for more information. Note that support for FlashPoint is only available for 32-bit x86 configurations. To compile this driver as a module, choose M here: the module will be called BusLogic. config SCSI_FLASHPOINT bool "FlashPoint support" depends on SCSI_BUSLOGIC && PCI help This option allows you to add FlashPoint support to the BusLogic SCSI driver. The FlashPoint SCCB Manager code is substantial, so users of MultiMaster Host Adapters may not wish to include it. config SCSI_MYRB tristate "Mylex DAC960/DAC1100 PCI RAID Controller (Block Interface)" depends on PCI select RAID_ATTRS help This driver adds support for the Mylex DAC960, AcceleRAID, and eXtremeRAID PCI RAID controllers. This driver supports the older, block based interface. This driver is a reimplementation of the original DAC960 driver. If you have used the DAC960 driver you should enable this module. To compile this driver as a module, choose M here: the module will be called myrb. config SCSI_MYRS tristate "Mylex DAC960/DAC1100 PCI RAID Controller (SCSI Interface)" depends on PCI depends on !CPU_BIG_ENDIAN || COMPILE_TEST select RAID_ATTRS help This driver adds support for the Mylex DAC960, AcceleRAID, and eXtremeRAID PCI RAID controllers. This driver supports the newer, SCSI-based interface only. This driver is a reimplementation of the original DAC960 driver. If you have used the DAC960 driver you should enable this module. To compile this driver as a module, choose M here: the module will be called myrs. config VMWARE_PVSCSI tristate "VMware PVSCSI driver support" depends on PCI && SCSI && X86 help This driver supports VMware's para virtualized SCSI HBA. To compile this driver as a module, choose M here: the module will be called vmw_pvscsi. config XEN_SCSI_FRONTEND tristate "XEN SCSI frontend driver" depends on SCSI && XEN select XEN_XENBUS_FRONTEND help The XEN SCSI frontend driver allows the kernel to access SCSI Devices within another guest OS (usually Dom0). Only needed if the kernel is running in a XEN guest and generic SCSI access to a device is needed. config HYPERV_STORAGE tristate "Microsoft Hyper-V virtual storage driver" depends on SCSI && HYPERV depends on m || SCSI_FC_ATTRS != m default HYPERV help Select this option to enable the Hyper-V virtual storage driver. config LIBFC tristate "LibFC module" depends on SCSI_FC_ATTRS select CRC32 ---help--- Fibre Channel library module config LIBFCOE tristate "LibFCoE module" depends on LIBFC ---help--- Library for Fibre Channel over Ethernet module config FCOE tristate "FCoE module" depends on PCI depends on LIBFCOE ---help--- Fibre Channel over Ethernet module config FCOE_FNIC tristate "Cisco FNIC Driver" depends on PCI && X86 depends on LIBFCOE help This is support for the Cisco PCI-Express FCoE HBA. To compile this driver as a module, choose M here and read . The module will be called fnic. config SCSI_SNIC tristate "Cisco SNIC Driver" depends on PCI && SCSI help This is support for the Cisco PCI-Express SCSI HBA. To compile this driver as a module, choose M here and read . The module will be called snic. config SCSI_SNIC_DEBUG_FS bool "Cisco SNIC Driver Debugfs Support" depends on SCSI_SNIC && DEBUG_FS help This enables to list debugging information from SNIC Driver available via debugfs file system config SCSI_DMX3191D tristate "DMX3191D SCSI support" depends on PCI && SCSI select SCSI_SPI_ATTRS help This is support for Domex DMX3191D SCSI Host Adapters. To compile this driver as a module, choose M here: the module will be called dmx3191d. config SCSI_FDOMAIN tristate depends on SCSI config SCSI_FDOMAIN_PCI tristate "Future Domain TMC-3260/AHA-2920A PCI SCSI support" depends on PCI && SCSI select SCSI_FDOMAIN help This is support for Future Domain's PCI SCSI host adapters (TMC-3260) and other adapters with PCI bus based on the Future Domain chipsets (Adaptec AHA-2920A). NOTE: Newer Adaptec AHA-2920C boards use the Adaptec AIC-7850 chip and should use the aic7xxx driver ("Adaptec AIC7xxx chipset SCSI controller support"). This Future Domain driver works with the older Adaptec AHA-2920A boards with a Future Domain chip on them. To compile this driver as a module, choose M here: the module will be called fdomain_pci. config SCSI_FDOMAIN_ISA tristate "Future Domain 16xx ISA SCSI support" depends on ISA && SCSI select CHECK_SIGNATURE select SCSI_FDOMAIN help This is support for Future Domain's 16-bit SCSI host adapters (TMC-1660/1680, TMC-1650/1670, TMC-1610M/MER/MEX) and other adapters with ISA bus based on the Future Domain chipsets (Quantum ISA-200S, ISA-250MG; and at least one IBM board). To compile this driver as a module, choose M here: the module will be called fdomain_isa. config SCSI_GDTH tristate "Intel/ICP (former GDT SCSI Disk Array) RAID Controller support" depends on PCI && SCSI ---help--- Formerly called GDT SCSI Disk Array Controller Support. This is a driver for RAID/SCSI Disk Array Controllers (EISA/ISA/PCI) manufactured by Intel Corporation/ICP vortex GmbH. It is documented in the kernel source in and . To compile this driver as a module, choose M here: the module will be called gdth. config SCSI_ISCI tristate "Intel(R) C600 Series Chipset SAS Controller" depends on PCI && SCSI depends on X86 select SCSI_SAS_LIBSAS ---help--- This driver supports the 6Gb/s SAS capabilities of the storage control unit found in the Intel(R) C600 series chipset. config SCSI_GENERIC_NCR5380 tristate "Generic NCR5380/53c400 SCSI ISA card support" depends on ISA && SCSI && HAS_IOPORT_MAP select SCSI_SPI_ATTRS ---help--- This is a driver for old ISA card SCSI controllers based on a NCR 5380, 53C80, 53C400, 53C400A, or DTC 436 device. Most boards such as the Trantor T130 fit this category, as do various 8-bit and 16-bit ISA cards bundled with SCSI scanners. To compile this driver as a module, choose M here: the module will be called g_NCR5380. config SCSI_IPS tristate "IBM ServeRAID support" depends on PCI && SCSI ---help--- This is support for the IBM ServeRAID hardware RAID controllers. See and for more information. If this driver does not work correctly without modification please contact the author by email at . To compile this driver as a module, choose M here: the module will be called ips. config SCSI_IBMVSCSI tristate "IBM Virtual SCSI support" depends on PPC_PSERIES select SCSI_SRP_ATTRS help This is the IBM POWER Virtual SCSI Client To compile this driver as a module, choose M here: the module will be called ibmvscsi. config SCSI_IBMVSCSIS tristate "IBM Virtual SCSI Server support" depends on PPC_PSERIES && TARGET_CORE && SCSI && PCI help This is the IBM POWER Virtual SCSI Target Server This driver uses the SRP protocol for communication between servers guest and/or the host that run on the same server. More information on VSCSI protocol can be found at www.power.org The userspace configuration needed to initialize the driver can be be found here: https://github.com/powervm/ibmvscsis/wiki/Configuration To compile this driver as a module, choose M here: the module will be called ibmvscsis. config SCSI_IBMVFC tristate "IBM Virtual FC support" depends on PPC_PSERIES && SCSI depends on SCSI_FC_ATTRS help This is the IBM POWER Virtual FC Client To compile this driver as a module, choose M here: the module will be called ibmvfc. config SCSI_IBMVFC_TRACE bool "enable driver internal trace" depends on SCSI_IBMVFC default y help If you say Y here, the driver will trace all commands issued to the adapter. Performance impact is minimal. Trace can be dumped using /sys/class/scsi_host/hostXX/trace. config SCSI_INITIO tristate "Initio 9100U(W) support" depends on PCI && SCSI help This is support for the Initio 91XXU(W) SCSI host adapter. Please read the SCSI-HOWTO, available from . To compile this driver as a module, choose M here: the module will be called initio. config SCSI_INIA100 tristate "Initio INI-A100U2W support" depends on PCI && SCSI help This is support for the Initio INI-A100U2W SCSI host adapter. Please read the SCSI-HOWTO, available from . To compile this driver as a module, choose M here: the module will be called a100u2w. config SCSI_PPA tristate "IOMEGA parallel port (ppa - older drives)" depends on SCSI && PARPORT_PC ---help--- This driver supports older versions of IOMEGA's parallel port ZIP drive (a 100 MB removable media device). Note that you can say N here if you have the SCSI version of the ZIP drive: it will be supported automatically if you said Y to the generic "SCSI disk support", above. If you have the ZIP Plus drive or a more recent parallel port ZIP drive (if the supplied cable with the drive is labeled "AutoDetect") then you should say N here and Y to "IOMEGA parallel port (imm - newer drives)", below. For more information about this driver and how to use it you should read the file . You should also read the SCSI-HOWTO, which is available from . If you use this driver, you will still be able to use the parallel port for other tasks, such as a printer; it is safe to compile both drivers into the kernel. To compile this driver as a module, choose M here: the module will be called ppa. config SCSI_IMM tristate "IOMEGA parallel port (imm - newer drives)" depends on SCSI && PARPORT_PC ---help--- This driver supports newer versions of IOMEGA's parallel port ZIP drive (a 100 MB removable media device). Note that you can say N here if you have the SCSI version of the ZIP drive: it will be supported automatically if you said Y to the generic "SCSI disk support", above. If you have the ZIP Plus drive or a more recent parallel port ZIP drive (if the supplied cable with the drive is labeled "AutoDetect") then you should say Y here; if you have an older ZIP drive, say N here and Y to "IOMEGA Parallel Port (ppa - older drives)", above. For more information about this driver and how to use it you should read the file . You should also read the SCSI-HOWTO, which is available from . If you use this driver, you will still be able to use the parallel port for other tasks, such as a printer; it is safe to compile both drivers into the kernel. To compile this driver as a module, choose M here: the module will be called imm. config SCSI_IZIP_EPP16 bool "ppa/imm option - Use slow (but safe) EPP-16" depends on SCSI_PPA || SCSI_IMM ---help--- EPP (Enhanced Parallel Port) is a standard for parallel ports which allows them to act as expansion buses that can handle up to 64 peripheral devices. Some parallel port chipsets are slower than their motherboard, and so we have to control the state of the chipset's FIFO queue every now and then to avoid data loss. This will be done if you say Y here. Generally, saying Y is the safe option and slows things down a bit. config SCSI_IZIP_SLOW_CTR bool "ppa/imm option - Assume slow parport control register" depends on SCSI_PPA || SCSI_IMM help Some parallel ports are known to have excessive delays between changing the parallel port control register and good data being available on the parallel port data/status register. This option forces a small delay (1.0 usec to be exact) after changing the control register to let things settle out. Enabling this option may result in a big drop in performance but some very old parallel ports (found in 386 vintage machines) will not work properly. Generally, saying N is fine. config SCSI_LASI700 tristate "HP Lasi SCSI support for 53c700/710" depends on GSC && SCSI select SCSI_SPI_ATTRS help This is a driver for the SCSI controller in the Lasi chip found in many PA-RISC workstations & servers. If you do not know whether you have a Lasi chip, it is safe to say "Y" here. config SCSI_SNI_53C710 tristate "SNI RM SCSI support for 53c710" depends on SNI_RM && SCSI select SCSI_SPI_ATTRS select 53C700_LE_ON_BE help This is a driver for the onboard SCSI controller found in older SNI RM workstations & servers. config 53C700_LE_ON_BE bool depends on SCSI_LASI700 || SCSI_SNI_53C710 default y config SCSI_STEX tristate "Promise SuperTrak EX Series support" depends on PCI && SCSI ---help--- This driver supports Promise SuperTrak EX series storage controllers. Promise provides Linux RAID configuration utility for these controllers. Please visit to download. To compile this driver as a module, choose M here: the module will be called stex. config 53C700_BE_BUS bool depends on SCSI_A4000T || SCSI_ZORRO7XX || MVME16x_SCSI || BVME6000_SCSI default y config SCSI_SYM53C8XX_2 tristate "SYM53C8XX Version 2 SCSI support" depends on PCI && SCSI select SCSI_SPI_ATTRS ---help--- This driver supports the whole NCR53C8XX/SYM53C8XX family of PCI-SCSI controllers. It also supports the subset of LSI53C10XX Ultra-160 controllers that are based on the SYM53C8XX SCRIPTS language. It does not support LSI53C10XX Ultra-320 PCI-X SCSI controllers; you need to use the Fusion MPT driver for that. Please read for more information. config SCSI_SYM53C8XX_DMA_ADDRESSING_MODE int "DMA addressing mode" depends on SCSI_SYM53C8XX_2 default "1" ---help--- This option only applies to PCI-SCSI chips that are PCI DAC capable (875A, 895A, 896, 1010-33, 1010-66, 1000). When set to 0, the driver will program the chip to only perform 32-bit DMA. When set to 1, the chip will be able to perform DMA to addresses up to 1TB. When set to 2, the driver supports the full 64-bit DMA address range, but can only address 16 segments of 4 GB each. This limits the total addressable range to 64 GB. Most machines with less than 4GB of memory should use a setting of 0 for best performance. If your machine has 4GB of memory or more, you should set this option to 1 (the default). The still experimental value 2 (64 bit DMA addressing with 16 x 4GB segments limitation) can be used on systems that require PCI address bits past bit 39 to be set for the addressing of memory using PCI DAC cycles. config SCSI_SYM53C8XX_DEFAULT_TAGS int "Default tagged command queue depth" depends on SCSI_SYM53C8XX_2 default "16" help This is the default value of the command queue depth the driver will announce to the generic SCSI layer for devices that support tagged command queueing. This value can be changed from the boot command line. This is a soft limit that cannot exceed CONFIG_SCSI_SYM53C8XX_MAX_TAGS. config SCSI_SYM53C8XX_MAX_TAGS int "Maximum number of queued commands" depends on SCSI_SYM53C8XX_2 default "64" help This option allows you to specify the maximum number of commands that can be queued to any device, when tagged command queuing is possible. The driver supports up to 256 queued commands per device. This value is used as a compiled-in hard limit. config SCSI_SYM53C8XX_MMIO bool "Use memory mapped IO" depends on SCSI_SYM53C8XX_2 default y help Memory mapped IO is faster than Port IO. Most people should answer Y here, but some machines may have problems. If you have to answer N here, please report the problem to the maintainer. config SCSI_IPR tristate "IBM Power Linux RAID adapter support" depends on PCI && SCSI && ATA select FW_LOADER select IRQ_POLL select SGL_ALLOC ---help--- This driver supports the IBM Power Linux family RAID adapters. This includes IBM pSeries 5712, 5703, 5709, and 570A, as well as IBM iSeries 5702, 5703, 5709, and 570A. config SCSI_IPR_TRACE bool "enable driver internal trace" depends on SCSI_IPR default y help If you say Y here, the driver will trace all commands issued to the adapter. Performance impact is minimal. Trace can be dumped using /sys/bus/class/scsi_host/hostXX/trace. config SCSI_IPR_DUMP bool "enable adapter dump support" depends on SCSI_IPR default y help If you say Y here, the driver will support adapter crash dump. If you enable this support, the iprdump daemon can be used to capture adapter failure analysis information. config SCSI_ZALON tristate "Zalon SCSI support" depends on GSC && SCSI select SCSI_SPI_ATTRS help The Zalon is a GSC/HSC bus interface chip that sits between the PA-RISC processor and the NCR 53c720 SCSI controller on C100, C110, J200, J210 and some D, K & R-class machines. It's also used on the add-in Bluefish, Barracuda & Shrike SCSI cards. Say Y here if you have one of these machines or cards. config SCSI_NCR53C8XX_DEFAULT_TAGS int "default tagged command queue depth" depends on SCSI_ZALON default "8" ---help--- "Tagged command queuing" is a feature of SCSI-2 which improves performance: the host adapter can send several SCSI commands to a device's queue even if previous commands haven't finished yet. Because the device is intelligent, it can optimize its operations (like head positioning) based on its own request queue. Some SCSI devices don't implement this properly; if you want to disable this feature, enter 0 or 1 here (it doesn't matter which). The default value is 8 and should be supported by most hard disks. This value can be overridden from the boot command line using the 'tags' option as follows (example): 'ncr53c8xx=tags:4/t2t3q16/t0u2q10' will set default queue depth to 4, set queue depth to 16 for target 2 and target 3 on controller 0 and set queue depth to 10 for target 0 / lun 2 on controller 1. The normal answer therefore is to go with the default 8 and to use a boot command line option for devices that need to use a different command queue depth. There is no safe option other than using good SCSI devices. config SCSI_NCR53C8XX_MAX_TAGS int "maximum number of queued commands" depends on SCSI_ZALON default "32" ---help--- This option allows you to specify the maximum number of commands that can be queued to any device, when tagged command queuing is possible. The default value is 32. Minimum is 2, maximum is 64. Modern hard disks are able to support 64 tags and even more, but do not seem to be faster when more than 32 tags are being used. So, the normal answer here is to go with the default value 32 unless you are using very large hard disks with large cache (>= 1 MB) that are able to take advantage of more than 32 tagged commands. There is no safe option and the default answer is recommended. config SCSI_NCR53C8XX_SYNC int "synchronous transfers frequency in MHz" depends on SCSI_ZALON default "20" ---help--- The SCSI Parallel Interface-2 Standard defines 5 classes of transfer rates: FAST-5, FAST-10, FAST-20, FAST-40 and FAST-80. The numbers are respectively the maximum data transfer rates in mega-transfers per second for each class. For example, a FAST-20 Wide 16 device is able to transfer data at 20 million 16 bit packets per second for a total rate of 40 MB/s. You may specify 0 if you want to only use asynchronous data transfers. This is the safest and slowest option. Otherwise, specify a value between 5 and 80, depending on the capability of your SCSI controller. The higher the number, the faster the data transfer. Note that 80 should normally be ok since the driver decreases the value automatically according to the controller's capabilities. Your answer to this question is ignored for controllers with NVRAM, since the driver will get this information from the user set-up. It also can be overridden using a boot setup option, as follows (example): 'ncr53c8xx=sync:12' will allow the driver to negotiate for FAST-20 synchronous data transfer (20 mega-transfers per second). The normal answer therefore is not to go with the default but to select the maximum value 80 allowing the driver to use the maximum value supported by each controller. If this causes problems with your SCSI devices, you should come back and decrease the value. There is no safe option other than using good cabling, right terminations and SCSI conformant devices. config SCSI_NCR53C8XX_NO_DISCONNECT bool "not allow targets to disconnect" depends on SCSI_ZALON && SCSI_NCR53C8XX_DEFAULT_TAGS=0 help This option is only provided for safety if you suspect some SCSI device of yours to not support properly the target-disconnect feature. In that case, you would say Y here. In general however, to not allow targets to disconnect is not reasonable if there is more than 1 device on a SCSI bus. The normal answer therefore is N. config SCSI_QLOGIC_FAS tristate "Qlogic FAS SCSI support" depends on ISA && SCSI ---help--- This is a driver for the ISA, VLB, and PCMCIA versions of the Qlogic FastSCSI! cards as well as any other card based on the FASXX chip (including the Control Concepts SCSI/IDE/SIO/PIO/FDC cards). This driver does NOT support the PCI versions of these cards. The PCI versions are supported by the Qlogic ISP driver ("Qlogic ISP SCSI support"), below. Information about this driver is contained in . You should also read the SCSI-HOWTO, available from . To compile this driver as a module, choose M here: the module will be called qlogicfas. config SCSI_QLOGIC_1280 tristate "Qlogic QLA 1240/1x80/1x160 SCSI support" depends on PCI && SCSI help Say Y if you have a QLogic ISP1240/1x80/1x160 SCSI host adapter. To compile this driver as a module, choose M here: the module will be called qla1280. config SCSI_QLOGICPTI tristate "PTI Qlogic, ISP Driver" depends on SBUS && SCSI help This driver supports SBUS SCSI controllers from PTI or QLogic. These controllers are known under Solaris as qpti and in the openprom as PTI,ptisp or QLGC,isp. Note that PCI QLogic SCSI controllers are driven by a different driver. To compile this driver as a module, choose M here: the module will be called qlogicpti. source "drivers/scsi/qla2xxx/Kconfig" source "drivers/scsi/qla4xxx/Kconfig" source "drivers/scsi/qedi/Kconfig" source "drivers/scsi/qedf/Kconfig" config SCSI_LPFC tristate "Emulex LightPulse Fibre Channel Support" depends on PCI && SCSI depends on SCSI_FC_ATTRS depends on NVME_TARGET_FC || NVME_TARGET_FC=n depends on NVME_FC || NVME_FC=n select CRC_T10DIF ---help--- This lpfc driver supports the Emulex LightPulse Family of Fibre Channel PCI host adapters. config SCSI_LPFC_DEBUG_FS bool "Emulex LightPulse Fibre Channel debugfs Support" depends on SCSI_LPFC && DEBUG_FS ---help--- This makes debugging information from the lpfc driver available via the debugfs filesystem. config SCSI_SIM710 tristate "Simple 53c710 SCSI support (Compaq, NCR machines)" depends on EISA && SCSI select SCSI_SPI_ATTRS ---help--- This driver is for NCR53c710 based SCSI host adapters. It currently supports Compaq EISA cards. config SCSI_DC395x tristate "Tekram DC395(U/UW/F) and DC315(U) SCSI support" depends on PCI && SCSI ---help--- This driver supports PCI SCSI host adapters based on the ASIC TRM-S1040 chip, e.g Tekram DC395(U/UW/F) and DC315(U) variants. This driver works, but is still in experimental status. So better have a bootable disk and a backup in case of emergency. Documentation can be found in . To compile this driver as a module, choose M here: the module will be called dc395x. config SCSI_AM53C974 tristate "Tekram DC390(T) and Am53/79C974 SCSI support (new driver)" depends on PCI && SCSI select SCSI_SPI_ATTRS ---help--- This driver supports PCI SCSI host adapters based on the Am53C974A chip, e.g. Tekram DC390(T), DawiControl 2974 and some onboard PCscsi/PCnet (Am53/79C974) solutions. This is a new implementation base on the generic esp_scsi driver. Note that this driver does NOT support Tekram DC390W/U/F, which are based on NCR/Symbios chips. Use "NCR53C8XX SCSI support" for those. To compile this driver as a module, choose M here: the module will be called am53c974. config SCSI_NSP32 tristate "Workbit NinjaSCSI-32Bi/UDE support" depends on PCI && SCSI && !64BIT help This is support for the Workbit NinjaSCSI-32Bi/UDE PCI/Cardbus SCSI host adapter. Please read the SCSI-HOWTO, available from . To compile this driver as a module, choose M here: the module will be called nsp32. config SCSI_WD719X tristate "Western Digital WD7193/7197/7296 support" depends on PCI && SCSI select EEPROM_93CX6 ---help--- This is a driver for Western Digital WD7193, WD7197 and WD7296 PCI SCSI controllers (based on WD33C296A chip). config SCSI_DEBUG tristate "SCSI debugging host and device simulator" depends on SCSI select CRC_T10DIF help This pseudo driver simulates one or more hosts (SCSI initiators), each with one or more targets, each with one or more logical units. Defaults to one of each, creating a small RAM disk device. Many parameters found in the /sys/bus/pseudo/drivers/scsi_debug directory can be tweaked at run time. See for more information. Mainly used for testing and best as a module. If unsure, say N. config SCSI_MESH tristate "MESH (Power Mac internal SCSI) support" depends on PPC32 && PPC_PMAC && SCSI help Many Power Macintoshes and clones have a MESH (Macintosh Enhanced SCSI Hardware) SCSI bus adaptor (the 7200 doesn't, but all of the other Power Macintoshes do). Say Y to include support for this SCSI adaptor. To compile this driver as a module, choose M here: the module will be called mesh. config SCSI_MESH_SYNC_RATE int "maximum synchronous transfer rate (MB/s) (0 = async)" depends on SCSI_MESH default "5" help On Power Macintoshes (and clones) where the MESH SCSI bus adaptor drives a bus which is entirely internal to the machine (such as the 7500, 7600, 8500, etc.), the MESH is capable of synchronous operation at up to 10 MB/s. On machines where the SCSI bus controlled by the MESH can have external devices connected, it is usually rated at 5 MB/s. 5 is a safe value here unless you know the MESH SCSI bus is internal only; in that case you can say 10. Say 0 to disable synchronous operation. config SCSI_MESH_RESET_DELAY_MS int "initial bus reset delay (ms) (0 = no reset)" depends on SCSI_MESH default "4000" config SCSI_MAC53C94 tristate "53C94 (Power Mac external SCSI) support" depends on PPC32 && PPC_PMAC && SCSI help On Power Macintoshes (and clones) with two SCSI buses, the external SCSI bus is usually controlled by a 53C94 SCSI bus adaptor. Older machines which only have one SCSI bus, such as the 7200, also use the 53C94. Say Y to include support for the 53C94. To compile this driver as a module, choose M here: the module will be called mac53c94. source "drivers/scsi/arm/Kconfig" config JAZZ_ESP bool "MIPS JAZZ FAS216 SCSI support" depends on MACH_JAZZ && SCSI select SCSI_SPI_ATTRS help This is the driver for the onboard SCSI host adapter of MIPS Magnum 4000, Acer PICA, Olivetti M700-10 and a few other identical OEM systems. config A3000_SCSI tristate "A3000 WD33C93A support" depends on AMIGA && SCSI help If you have an Amiga 3000 and have SCSI devices connected to the built-in SCSI controller, say Y. Otherwise, say N. To compile this driver as a module, choose M here: the module will be called a3000. config A2091_SCSI tristate "A2091/A590 WD33C93A support" depends on ZORRO && SCSI help If you have a Commodore A2091 SCSI controller, say Y. Otherwise, say N. To compile this driver as a module, choose M here: the module will be called a2091. config GVP11_SCSI tristate "GVP Series II WD33C93A support" depends on ZORRO && SCSI ---help--- If you have a Great Valley Products Series II SCSI controller, answer Y. Also say Y if you have a later model of GVP SCSI controller (such as the GVP A4008 or a Combo board). Otherwise, answer N. This driver does NOT work for the T-Rex series of accelerators from TekMagic and GVP-M. To compile this driver as a module, choose M here: the module will be called gvp11. config SCSI_A4000T tristate "A4000T NCR53c710 SCSI support" depends on AMIGA && SCSI select SCSI_SPI_ATTRS help If you have an Amiga 4000T and have SCSI devices connected to the built-in SCSI controller, say Y. Otherwise, say N. To compile this driver as a module, choose M here: the module will be called a4000t. config SCSI_ZORRO7XX tristate "Zorro NCR53c710 SCSI support" depends on ZORRO && SCSI select SCSI_SPI_ATTRS help Support for various NCR53c710-based SCSI controllers on Zorro expansion boards for the Amiga. This includes: - the Amiga 4091 Zorro III SCSI-2 controller, - the MacroSystem Development's WarpEngine Amiga SCSI-2 controller (info at ), - the SCSI controller on the Phase5 Blizzard PowerUP 603e+ accelerator card for the Amiga 1200, - the SCSI controller on the GVP Turbo 040/060 accelerator. config SCSI_ZORRO_ESP tristate "Zorro ESP SCSI support" depends on ZORRO && SCSI select SCSI_SPI_ATTRS select SCSI_ESP_PIO help Support for various NCR53C9x (ESP) based SCSI controllers on Zorro expansion boards for the Amiga. This includes: - the Phase5 Blizzard 1230 II and IV SCSI controllers, - the Phase5 Blizzard 2060 SCSI controller, - the Phase5 Blizzard Cyberstorm and Cyberstorm II SCSI controllers, - the Fastlane Zorro III SCSI controller. config ATARI_SCSI tristate "Atari native SCSI support" depends on ATARI && SCSI select SCSI_SPI_ATTRS ---help--- If you have an Atari with built-in NCR5380 SCSI controller (TT, Falcon, ...) say Y to get it supported. Of course also, if you have a compatible SCSI controller (e.g. for Medusa). To compile this driver as a module, choose M here: the module will be called atari_scsi. If you also enable NVRAM support, the SCSI host's ID is taken from the setting in TT RTC NVRAM. This driver supports both styles of NCR integration into the system: the TT style (separate DMA), and the Falcon style (via ST-DMA, replacing ACSI). It does NOT support other schemes, like in the Hades (without DMA). config MAC_SCSI tristate "Macintosh NCR5380 SCSI" depends on MAC && SCSI select SCSI_SPI_ATTRS help This is the NCR 5380 SCSI controller included on most of the 68030 based Macintoshes. If you have one of these say Y and read the SCSI-HOWTO, available from . config SCSI_MAC_ESP tristate "Macintosh NCR53c9[46] SCSI" depends on MAC && SCSI select SCSI_SPI_ATTRS select SCSI_ESP_PIO help This is the NCR 53c9x SCSI controller found on most of the 68040 based Macintoshes. To compile this driver as a module, choose M here: the module will be called mac_esp. config MVME147_SCSI bool "WD33C93 SCSI driver for MVME147" depends on MVME147 && SCSI=y select SCSI_SPI_ATTRS help Support for the on-board SCSI controller on the Motorola MVME147 single-board computer. config MVME16x_SCSI tristate "NCR53C710 SCSI driver for MVME16x" depends on MVME16x && SCSI select SCSI_SPI_ATTRS help The Motorola MVME162, 166, 167, 172 and 177 boards use the NCR53C710 SCSI controller chip. Almost everyone using one of these boards will want to say Y to this question. config BVME6000_SCSI tristate "NCR53C710 SCSI driver for BVME6000" depends on BVME6000 && SCSI select SCSI_SPI_ATTRS help The BVME4000 and BVME6000 boards from BVM Ltd use the NCR53C710 SCSI controller chip. Almost everyone using one of these boards will want to say Y to this question. config SUN3_SCSI tristate "Sun3 NCR5380 SCSI" depends on SUN3 && SCSI select SCSI_SPI_ATTRS help This option will enable support for the OBIO (onboard io) NCR5380 SCSI controller found in the Sun 3/50 and 3/60, as well as for "Sun3" type VME scsi controllers also based on the NCR5380. General Linux information on the Sun 3 series (now discontinued) is at . config SUN3X_ESP bool "Sun3x ESP SCSI" depends on SUN3X && SCSI=y select SCSI_SPI_ATTRS help The ESP was an on-board SCSI controller used on Sun 3/80 machines. Say Y here to compile in support for it. config SCSI_SUNESP tristate "Sparc ESP Scsi Driver" depends on SBUS && SCSI select SCSI_SPI_ATTRS help This is the driver for the Sun ESP SCSI host adapter. The ESP chipset is present in most SPARC SBUS-based computers and supports the Emulex family of ESP SCSI chips (esp100, esp100A, esp236, fas101, fas236) as well as the Qlogic fas366 SCSI chip. To compile this driver as a module, choose M here: the module will be called sun_esp. config ZFCP tristate "FCP host bus adapter driver for IBM eServer zSeries" depends on S390 && QDIO && SCSI depends on SCSI_FC_ATTRS help If you want to access SCSI devices attached to your IBM eServer zSeries by means of Fibre Channel interfaces say Y. For details please refer to the documentation provided by IBM at This driver is also available as a module. This module will be called zfcp. If you want to compile it as a module, say M here and read . config SCSI_PMCRAID tristate "PMC SIERRA Linux MaxRAID adapter support" depends on PCI && SCSI && NET select SGL_ALLOC ---help--- This driver supports the PMC SIERRA MaxRAID adapters. config SCSI_PM8001 tristate "PMC-Sierra SPC 8001 SAS/SATA Based Host Adapter driver" depends on PCI && SCSI select SCSI_SAS_LIBSAS help This driver supports PMC-Sierra PCIE SAS/SATA 8x6G SPC 8001 chip based host adapters. config SCSI_BFA_FC tristate "Brocade BFA Fibre Channel Support" depends on PCI && SCSI depends on SCSI_FC_ATTRS help This bfa driver supports all Brocade PCIe FC/FCOE host adapters. To compile this driver as a module, choose M here. The module will be called bfa. config SCSI_VIRTIO tristate "virtio-scsi support" depends on VIRTIO help This is the virtual HBA driver for virtio. If the kernel will be used in a virtual machine, say Y or M. source "drivers/scsi/csiostor/Kconfig" source "drivers/scsi/pcmcia/Kconfig" endif # SCSI_LOWLEVEL source "drivers/scsi/device_handler/Kconfig" endmenu