Will Deacon c0954f1010 virtio_ring: Fix querying of maximum DMA mapping size for virtio device ... commit 817fc978b5 upstream. virtio_max_dma_size() returns the maximum DMA mapping size of the virtio device by querying dma_max_mapping_size() for the device when the DMA API is in use for the vring. Unfortunately, the device passed is initialised by register_virtio_device() and does not inherit the DMA configuration from its parent, resulting in SWIOTLB errors when bouncing is enabled and the default 256K mapping limit (IO_TLB_SEGSIZE) is not respected: | virtio-pci 0000:00:01.0: swiotlb buffer is full (sz: 294912 bytes), total 1024 (slots), used 725 (slots) Follow the pattern used elsewhere in the virtio_ring code when calling into the DMA layer and pass the parent device to dma_max_mapping_size() instead. Cc: Marc Zyngier <maz@kernel.org> Cc: Quentin Perret <qperret@google.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Signed-off-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20211201112018.25276-1-will@kernel.org Acked-by: Jason Wang <jasowang@redhat.com> Tested-by: Suzuki K Poulose <suzuki.poulose@arm.com> Fixes: e6d6dd6c87 ("virtio: Introduce virtio_max_dma_size()") Cc: Joerg Roedel <jroedel@suse.de> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: stable@vger.kernel.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-12-22 09:29:34 +01:00
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Kconfig	…
Makefile	…
virtio.c	virtio: write back F_VERSION_1 before validate	2021-10-20 11:40:14 +02:00
virtio_balloon.c	virtio_balloon: fix up endian-ness for free cmd id	2020-08-05 09:59:43 +02:00
virtio_input.c	…
virtio_mmio.c	virtio-mmio: add error check for platform_get_irq	2019-07-11 16:22:29 -04:00
virtio_pci_common.c	virtio_pci: Support surprise removal of virtio pci device	2021-09-03 10:08:15 +02:00
virtio_pci_common.h	…
virtio_pci_legacy.c	…
virtio_pci_modern.c	…
virtio_ring.c	virtio_ring: Fix querying of maximum DMA mapping size for virtio device	2021-12-22 09:29:34 +01:00