linux/drivers/dma
Saeed Bishara ff7b04796d dmaengine: DMA engine driver for Marvell XOR engine
The XOR engine found in Marvell's SoCs and system controllers
provides XOR and DMA operation, iSCSI CRC32C calculation, memory
initialization, and memory ECC error cleanup operation support.

This driver implements the DMA engine API and supports the following
capabilities:
- memcpy
- xor
- memset

The XOR engine can be used by DMA engine clients implemented in the
kernel, one of those clients is the RAID module.  In that case, I
observed 20% improvement in the raid5 write throughput, and 40%
decrease in the CPU utilization when doing array construction, those
results obtained on an 5182 running at 500Mhz.

When enabling the NET DMA client, the performance decreased, so
meanwhile it is recommended to keep this client off.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-08 11:58:36 -07:00
..
dmaengine.c dmaengine: track the number of clients using a channel 2008-07-08 11:58:21 -07:00
fsldma.c fsldma: fix incorrect exit path for initialization 2008-07-08 11:57:45 -07:00
fsldma.h fix the broken annotations in fsldma 2008-03-30 14:20:24 -07:00
ioat_dca.c ioat_dca __iomem annotations 2008-03-30 14:18:41 -07:00
ioat_dma.c dmaengine: ack to flags: make use of the unused bits in the 'ack' field 2008-04-17 13:25:54 -07:00
ioat.c I/OAT: Add support for version 2 of ioatdma device 2007-11-14 18:45:41 -08:00
ioatdma_hw.h I/OAT: Add support for version 2 of ioatdma device 2007-11-14 18:45:41 -08:00
ioatdma_registers.h I/OAT: Add support for version 2 of ioatdma device 2007-11-14 18:45:41 -08:00
ioatdma.h I/OAT: fixups from code comments 2007-12-17 19:28:17 -08:00
iop-adma.c iop-adma: fix platform driver hotplug/coldplug 2008-07-08 11:58:28 -07:00
iovlock.c [NET_DMA]: remove unused dma_memcpy_to_kernel_iovec 2007-07-31 02:28:03 -07:00
Kconfig dmaengine: DMA engine driver for Marvell XOR engine 2008-07-08 11:58:36 -07:00
Makefile dmaengine: DMA engine driver for Marvell XOR engine 2008-07-08 11:58:36 -07:00
mv_xor.c dmaengine: DMA engine driver for Marvell XOR engine 2008-07-08 11:58:36 -07:00
mv_xor.h dmaengine: DMA engine driver for Marvell XOR engine 2008-07-08 11:58:36 -07:00