Commit 6689dfac authored Apr 26, 2016 by Andy Shevchenko Committed by Tejun Heo May 10, 2016

ata: sata_dwc_460ex: set dma_boundary to 0x1fff



The original code states:

	Make sure a LLI block is not created that will span 8K max FIS
	boundary. If the block spans such a FIS boundary, there is a chance
	that a DMA burst will cross that boundary -- this results in an error
	in the host controller.

Since we have switched to generic DMAengine API we satisfy above by setting
dma_boundary value to 0x1fff.

Suggested-by: Mans Rullgard <mans@mansr.com>
Tested-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

parent a7e6de54

drivers/ata/sata_dwc_460ex.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -1151,7 +1151,13 @@ static struct scsi_host_template sata_dwc_sht = {
		*/
		.sg_tablesize = LIBATA_MAX_PRD,
		/* .can_queue = ATA_MAX_QUEUE, */
		.dma_boundary = ATA_DMA_BOUNDARY,
		/*
		* Make sure a LLI block is not created that will span 8K max FIS
		* boundary. If the block spans such a FIS boundary, there is a chance
		* that a DMA burst will cross that boundary -- this results in an
		* error in the host controller.
		*/
		.dma_boundary = 0x1fff /* ATA_DMA_BOUNDARY */,
		};

		static struct ata_port_operations sata_dwc_ops = {