在 2021/2/23 下午8:40, Pavel Begunkov 写道:
Instead of using a request itself for overflowed CQE stashing, allocate
a separate entry. The disadvantage is that the allocation may fail and
it will be accounted as lost (see rings->cq_overflow), so we lose
reliability in case of memory pressure. However, it opens a way for for
multiple CQEs per an SQE and even generating SQE-less CQEs >
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
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Hi Pavel,
Allow me to ask a stupid question, why do we need to support multiple
CQEs per SQE or even SQE-less CQEs in the future?
Thanks,
Hao
