a question about DMA (realtek ethernet chip driver)
From: romieu@fr.zoreil.com (Francois Romieu)
Date: 2015-05-14 09:29:37
Chan Kim [off-list ref] : [...]
Is the data in sk_buf copied to the DMA ring somewhere? if it is, where in the code is it done?
See dma_map_* functions, Documentation/DMA-API*, lib/swiotlb.c and drivers/iommu/iommu.c -- Ueimor