linux-kernel - Re: [PATCH net-next] s390/ism: Set DMA coherent mask

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Message-Id: <168502322128.12931.12742922917026189347.git-patchwork-notify@kernel.org>
Date:   Thu, 25 May 2023 14:00:21 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Niklas Schnelle <schnelle@...ux.ibm.com>
Cc:     kuba@...nel.org, davem@...emloft.net, wintera@...ux.ibm.com,
        wenjia@...ux.ibm.com, hca@...ux.ibm.com, gor@...ux.ibm.com,
        agordeev@...ux.ibm.com, borntraeger@...ux.ibm.com,
        svens@...ux.ibm.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-pci@...r.kernel.org, mjrosato@...ux.ibm.com,
        pmorel@...ux.ibm.com, linux-s390@...r.kernel.org
Subject: Re: [PATCH net-next] s390/ism: Set DMA coherent mask

Hello:

This patch was applied to netdev/net-next.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Wed, 24 May 2023 09:54:10 +0200 you wrote:
> A future change will convert the DMA API implementation from the
> architecture specific arch/s390/pci/pci_dma.c to using the common code
> drivers/iommu/dma-iommu.c which the utilizes the same IOMMU hardware
> through the s390-iommu driver. Unlike the s390 specific DMA API this
> requires devices to correctly set the coherent mask to be allowed to use
> IOVAs >2^32 in dma_alloc_coherent(). This was however not done for ISM
> devices. ISM requires such addresses since currently the DMA aperture
> for PCI devices starts at 2^32 and all calls to dma_alloc_coherent()
> would thus fail.
> 
> [...]

Here is the summary with links:
  - [net-next] s390/ism: Set DMA coherent mask
    https://git.kernel.org/netdev/net-next/c/657d42cf5df6

You are awesome, thank you!
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