Commit 4a01ab60 authored Jan 09, 2019 by Thomas Bogendoerfer Committed by Martin K. Petersen Jan 11, 2019

scsi: qla1280: set 64bit coherent mask



After Commit 54aed4dd ("MIPS: IP27: use dma_direct_ops") qla1280 driver
failed on SGI IP27 machines with

qla1280: QLA1040 found on PCI bus 0, dev 0
qla1280 0000:00:00.0: enabling device (0006 -> 0007)
qla1280: Failed to get request memory
qla1280: probe of 0000:00:00.0 failed with error -12

Reason is that SGI IP27 always generates 64bit DMA addresses and has no
fallback mode for 32bit DMA addresses implemented. QLA1280 supports 64bit
addressing for all DMA accesses so setting coherent mask to 64bit fixes the
issue.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent 9be9db9f

drivers/scsi/qla1280.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -4248,7 +4248,7 @@ qla1280_probe_one(struct pci_dev pdev, const struct pci_device_id id)
		ha->devnum = devnum; /* specifies microcode load address */

		#ifdef QLA_64BIT_PTR
		if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
		if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
		if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
		printk(KERN_WARNING "scsi(%li): Unable to set a "
		"suitable DMA mask - aborting\n", ha->host_no);

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