BMC/Intel-BMC/linux.git/drivers/dma/ioat/init.c, branch dev-4.6

dmaengine: IOATDMA: Allocate DMA descriptor ring in contig DMA memory

2016-02-15T17:36:53+00:00

Future IOATDMA hardware will take advantage of descriptors residing in contiguous memory. Setting the descriptor ring in max config DMA memory of 2MB. Each channel will need 2 of these chunks. This should provide 64k of 64B descriptors. Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul

dmaengine: IOATDMA: Removing descriptor ring reshape

2016-02-15T17:36:53+00:00

Moving to contingous memory backed descriptor rings. This makes is really difficult and complex to do reshape. Going to remove this as I don't think we need to do it anymore. Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul

dmaengine: IOATDMA: Convert pci_pool_* to dma_pool_*

2016-02-15T17:36:53+00:00

Converting old pci_pool_* calls to "new" dma_pool_* to make everything uniform. Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul

dmaengine: ioatdma: add PCIe AER handlers

2015-09-21T15:40:05+00:00

Adding AER handlers in order to handle any PCIe errors. Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul

dmaengine: ioatdma: adding shutdown support

2015-09-21T15:40:05+00:00

The ioatdma needs to be queisced and block all additional op submission during reboots. When NET_DMA was used, this caused issue as ops were still being sent to ioatdma during reboots even though PCI BME has been turned off. Even though NET_DMA has been deprecated, we need to prevent similar situations. The shutdown handler should address that. Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul

dmaengine: ioatdma: add Broadwell EP ioatdma PCI dev IDs

2015-08-28T04:36:06+00:00

Adding the Broadwell Xeon ioatdma PCI device IDs and related bits. This is still IOATDMA 3.2 based hw. Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul

dmaengine: ioatdma: fix coccinelle warning

2015-08-21T08:34:24+00:00

Simplifying the end return. This existed in the original code but was flagged when refactoring of the code made it appear it's new. coccinelle warnings: (new ones prefixed by >>) >> drivers/dma/ioat/init.c:1018:1-3: WARNING: end returns can be simpified Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul

dmanegine: ioatdma: remove function ptrs in ioatdma_device

2015-08-17T08:07:30+00:00

Since we are a "single" device driver now we no longer require the function pointers in ioatdma_device. Remove. Signed-off-by: Dave Jiang Acked-by: Dan Williams Signed-off-by: Vinod Koul

dmaengine: ioatdma: removal of dma_v3.c and relevant ioat3 references

2015-08-17T08:07:30+00:00

Moving the relevant functions to their respective .c files and removal of dma_v3.c file. Also removed various ioat3 references when appropriate. Signed-off-by: Dave Jiang Acked-by: Dan Williams Signed-off-by: Vinod Koul

dmaengine: ioatdma: move dma prep functions to single location

2015-08-17T08:07:30+00:00

Move all DMA descriptor prepping functions to prep.c file. Fixup all broken bits caused by the move. Signed-off-by: Dave Jiang Acked-by: Dan Williams Signed-off-by: Vinod Koul