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32-bit I/O support Intel combined mode Older, unsupported HDIO_xxx ioctls SATA RAID Enabling, disabling and checking NCQ 32-bit I/O support Why doesn't libata support 32-bit I/O? Does libata support HDIO_SET_32BIT ioctl? First, some background. The vast majority of data transfer takes place via DMA. For newer SATA controllers, DMA is a requirement, even for the so-called PIO taskfile data transfer
This status report applies to the latest SATA driver release, found in kernels >= 2.6.18-git5 (i.e. what will be 2.6.19). Table of Contents Recent updates Hardware support Intel ICH "IDE mode" AHCI (newer Intel ICH, ULi, others) Promise TX2/TX4 Promise SX4 Promise SX8 Silicon Image 311x Silicon Image 3124 Broadcom/ServerWorks/Apple VIA 64xx NVIDIA nForce SiS 180 Pacific Digital QStor Vitesse 7174
This status report applies to the latest SATA driver release, found in kernels >= 2.6.18-git5 (i.e. what will be 2.6.19). Table of Contents Recent updates Software support Basic Serial ATA Queueing (TCQ/NCQ) Hotplug Power management SMART PATA ATAPI Port Multiplier 1. Recent updates The drivers were moved to drivers/ata in the kernel source tree, and a large number of PATA drivers were merged. ACP
This information is presented in an attempt to jumpstart engineers learning ATA for the first time, and as a ready reference. ATA is a wonderfully frustrating mix of historical practice and specifications. Parallel ATA (PATA) requires an OS driver to manipulate signals on an electrical bus. Serial ATA (SATA) requires an OS driver to function at a much higher level, basically sending packets contai
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