On Tue, May 30, 2023 at 2:26 AM Duan, Zhenzhong
wrote:
>
> Hi Hao,
>
> > +memset(&descriptor, 0, sizeof(descriptor));
> > +
> > +descriptor.opcode = DSA_OPCODE_COMPARE;
>
> What about using DSA_OPCODE_COMPVAL with zero?
> DSA_OPCODE_COMPARE consumes double bandwidth by reading
> from both
Hi Hao,
> +memset(&descriptor, 0, sizeof(descriptor));
> +
> +descriptor.opcode = DSA_OPCODE_COMPARE;
What about using DSA_OPCODE_COMPVAL with zero?
DSA_OPCODE_COMPARE consumes double bandwidth by reading
from both src and dest address.
Thanks
Zhenzhong
1. Adds a memory comparison function by submitting
the work to the idxd driver.
2. Add interface to set bufferiszero accel function
to DSA offloading.
3. Fallback to use CPU accel function if DSA offloading
fails due to page fault.
Signed-off-by: Hao Xiang
---
include/qemu/cutils.h | 6 +
migr
