forked from Minki/linux
ff7b04796d
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> |
||
|---|---|---|
| .. | ||
| dmaengine.c | ||
| fsldma.c | ||
| fsldma.h | ||
| ioat_dca.c | ||
| ioat_dma.c | ||
| ioat.c | ||
| ioatdma_hw.h | ||
| ioatdma_registers.h | ||
| ioatdma.h | ||
| iop-adma.c | ||
| iovlock.c | ||
| Kconfig | ||
| Makefile | ||
| mv_xor.c | ||
| mv_xor.h | ||