mirror of https://gitee.com/openkylin/linux.git
37c0ffaad2
This patch works around a recently discovered unaligned receive dma problem with the Altera SGMDA. The Altera SGDMA component cannot be configured to DMA data to unaligned addresses for receive packet operations from the Triple Speed Ethernet component because of a potential data transfer corruption that can occur. This patch addresses this issue by utilizing the shift 16 bits feature of the Altera Triple Speed Ethernet component and modifying the receive buffer physical addresses accordingly such that the target receive DMA address is always aligned on a 32-bit boundary. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Tested-by: Matthew Gerlach <mgerlach@altera.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| altera_msgdma.c | ||
| altera_msgdma.h | ||
| altera_msgdmahw.h | ||
| altera_sgdma.c | ||
| altera_sgdma.h | ||
| altera_sgdmahw.h | ||
| altera_tse.h | ||
| altera_tse_ethtool.c | ||
| altera_tse_main.c | ||
| altera_utils.c | ||
| altera_utils.h | ||