532a8c64da
Some classes of IOAT hardware prefetch reads. DMA operations that depend on the result of prior DMA operations must use the DMA_FENCE flag to prevent stale reads. (E.g., I've hit this personally on Broadwell-EP. The Broadwell-DE has a different IOAT unit that is documented to not pipeline DMA operations.) Sponsored by: EMC / Isilon Storage Division |
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ioat_hw.h | ||
ioat_internal.h | ||
ioat_test.c | ||
ioat_test.h | ||
ioat.c | ||
ioat.h |