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Device Memory TCP TX Support Queued Ahead Of Linux 6.16
Google engineers the past few years have been working on Device Memory TCP for the Linux kernel to allow zero-copy receive of TCP payloads to DMA-BUF regions such as device memory attached directly to a GPU or AI accelerator or other device memory accessible with DMA-BUF
The Google-led patches for Device Memory TCP TX support was queued this past week into the networking subsystem's net-next tree. In time other Linux networking drivers will likely pick-up support for the Devmem TCP TX capabilities. The Device Memory TCP TX support went through 14 rounds of code review including changes to the user-space API and was delayed from the original Device Memory TCP patch series to facilitate easier code review at the time.
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