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cmdide(4) [netbsd man page]

CMDIDE(4)						   BSD Kernel Interfaces Manual 						 CMDIDE(4)

NAME
cmdide -- CMD Technology and Silicon Image IDE disk controllers driver SYNOPSIS
cmdide* at pci? dev ? function ? flags 0x0000 options PCIIDE_CMD064x_DISABLE options PCIIDE_CMD0646U_ENABLEUDMA DESCRIPTION
The cmdide driver supports the CMD Technology PCI0640, PCI0643, PCI0646, PCI0648, PCI0649, and Silicon Image 0680 IDE controllers, and pro- vides the interface with the hardware for the ata(4) driver. The 0x0002 flag forces the cmdide driver to disable DMA on chipsets for which DMA would normally be enabled. This can be used as a debugging aid, or to work around problems where the IDE controller is wired up to the system incorrectly. SEE ALSO
ata(4), atapi(4), intro(4), pci(4), pciide(4), wd(4), wdc(4) BUGS
There's no way to reliably know if a PCI064x controller is enabled or not. If the driver finds a PCI064x, it will assume it is enabled unless the PCIIDE_CMD064x_DISABLE option is specified in the kernel config file. This will be a problem only if the controller has been dis- abled in the BIOS and another controller has been installed and uses the ISA legacy I/O ports and interrupts. The PCI0646U controller is known to be buggy with Ultra-DMA transfers, so Ultra-DMA is disabled by default for this controller. To enable Ultra-DMA, use the PCIIDE_CMD0646U_ENABLEUDMA option. Ultra-DMA can eventually be disabled on a per-drive basis with config flags, see wd(4). The timings used for the PIO and DMA modes for controllers listed above are for a PCI bus running at 30 or 33 MHz. This driver may not work properly on overclocked systems. BSD
December 13, 2003 BSD

Check Out this Related Man Page

PCIIDE(4)						   BSD Kernel Interfaces Manual 						 PCIIDE(4)

NAME
pciide -- PCI IDE disk controllers driver SYNOPSIS
pciide* at pci? dev ? function ? flags 0x0000 pciide* at pnpbios? index ? DESCRIPTION
The pciide driver supports the PCI IDE controllers as specified in the "PCI IDE controller specification, revision 1.0" draft, and provides the interface with the hardware for the ata driver. Please use the chip-specific drivers for the following controllers for enhanced and DMA support: - Acard ATP850 (Ultra/33) and ATP860 (Ultra/66) IDE Controllers: acardide(4) - Acer labs M5229 IDE Controller: aceride(4) - Advanced Micro Devices AMD-756, 766, and 768 IDE Controllers: viaide(4) - Advanced Micro Devices Geode IDE Controllers: geodeide(4) - CMD Tech PCI0643, PCI0646, PCI0648, and PCI0649 IDE Controllers: cmdide(4) - Contaq Microsystems/Cypress CY82C693 IDE Controller: cypide(4) - HighPoint HPT366 Ultra/66, HPT370 Ultra/100, HPT372, and HPT374 Ultra/133 IDE controller: hptide(4) - Intel PIIX, PIIX3, and PIIX4 IDE Controllers: piixide(4) - Intel i31244 Serial ATA controller: artsata(4) - Intel 82801 (ICH/ICH0/ICH2/ICH3/ICH4/ICH5/ICH6) IDE Controllers: piixide(4) - Intel SCH IDE Controllers: schide(4) - NVIDIA nForce/nForce2 IDE Controllers: viaide(4) - OPTi 82c621 (plus a few of its derivatives) IDE Controllers: optiide(4) - Promise PDC20246 (Ultra/33), PDC20262 (Ultra/66), PDC20265/PDC20267 (Ultra100), PDC20268 (Ultra/100TX2 and Ultra/100TX2v2), Ultra/133, Ultra/133TX2 and Ultra/133TX2v2 PCI IDE controllers: pdcide(4) - Serverworks K2 SATA controllers: svwsata(4) - Silicon Image 0680 IDE controller: cmdide(4) - Silicon Image SATALink 3112 Serial ATA controller: satalink(4) - Silicon Image SteelVine 3124/3132/3531 Serial ATA II controller: siisata(4) - Silicon Integrated System 5597/5598 IDE controller: siside(4) - Symphony Labs 82C105 and Winbond W83C553F IDE controller: slide(4) - VIA Technologies VT82C586, VT82C586A, VT82C596A, VT82C686A, VT8233A, and VT8235 IDE Controllers: viaide(4) The 0x0001 flag forces the pciide driver to use DMA when there is no explicit DMA mode setting support for the controller but DMA is present. If the BIOS didn't set up the controller properly, this can cause a machine hang. The 0x0002 flag forces the pciide driver to disable DMA on chipsets for which DMA would normally be enabled. This can be used as a debugging aid, or to work around problems where the IDE controller is wired up to the system incorrectly. SEE ALSO
acardide(4), aceride(4), artsata(4), ata(4), atapi(4), cmdide(4), cypide(4), geodeide(4), hptide(4), intro(4), optiide(4), pci(4), pdcide(4), piixide(4), pnpbios(4), satalink(4), schide(4), siisata(4), siside(4), slide(4), viaide(4), wd(4), wdc(4) BSD
November 7, 2010 BSD
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