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[vs]: Update swiotlb buffer size to support multi-asic VS platform. (#6674)

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Current mutli-asic vs hwsku consists of 6 asics with each asic having 32 interfaces.
When bringing this up, below issue was seen:
When all 32 interfaces in each namespace (sonic interfaces and linux interface) is set to 9100 mtu, DMA error is seen "DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:06:03.0" which can be fixed by updating swiotlb=65536 in /host/grub/grub.cfg .

Signed-off-by: SuvarnaMeenakshi <sumeenak@microsoft.com>
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SuvarnaMeenakshi 2021-02-04 09:04:00 -08:00 committed by GitHub
parent 19ccba4d05
commit 2a92701c22
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device/virtual/x86_64-kvm_x86_64-r0/installer.conf
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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="swiotlb=65536"