kernel.git/drivers/dma/ioat/init.c, branch linux-4.8.y

dmaengine: ioat: statify symbol

2016-07-23T10:37:29Z

Sparse warns: drivers/dma/ioat/init.c:1215:6: warning: symbol 'ioat_resume' was not declared. Should it be static? Signed-off-by: Vinod Koul Acked-by: Dave Jiang

dmaengine: ioatdma: disable relaxed ordering for ioatdma

2016-05-14T08:06:52Z

ioatdma by default is in snoop mode. Relaxed ordering according to spec does not do anything in snoop mode. However, it causes hang or significant performance degrade when tested with NTB. Disabling in the driver due to some BIOS do not configure it correctly. Signed-off-by: Dave Jiang Signed-off-by: Vinod Koul

dmaengine: ioatdma: Use dma_pool_zalloc

2016-05-03T06:53:12Z

Dma_pool_zalloc combines dma_pool_alloc and memset 0. The semantic patch that makes this transformation is as follows: (http://coccinelle.lip6.fr/) // @@ expression d,e; statement S; @@ d = - dma_pool_alloc + dma_pool_zalloc (...); if (!d) S - memset(d, 0, sizeof(*d)); // Signed-off-by: Julia Lawall Signed-off-by: Vinod Koul

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

2016-02-15T17:36:53Z

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

2016-02-15T17:36:53Z

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_*

2016-02-15T17:36:53Z

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

2015-09-21T15:40:05Z

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

2015-09-21T15:40:05Z

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

2015-08-28T04:36:06Z

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

2015-08-21T08:34:24Z

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