UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

IB/qib: Use dma_set_mask_and_coherent to simplify code 

'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose.

Link: https://lore.kernel.org/r/20201121095127.1335228-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Christophe JAILLET 2020-11-21 10:51:27 +01:00 committed by Jason Gunthorpe
parent 8210163022
commit df0e4de29c
1 changed files with 2 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/infiniband/hw/qib/qib_pcie.c
View File

@ -90,25 +90,18 @@ int qib_pcie_init(struct pci_dev *pdev, const struct pci_device_id *ent)
goto bail;
}
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (ret) {
/*
* If the 64 bit setup fails, try 32 bit. Some systems
* do not setup 64 bit maps on systems with 2GB or less
* memory installed.
*/
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (ret) {
qib_devinfo(pdev, "Unable to set DMA mask: %d\n", ret);
goto bail;
}
ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
} else
ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (ret) {
qib_early_err(&pdev->dev,
"Unable to set DMA consistent mask: %d\n", ret);
goto bail;
}
pci_set_master(pdev);