On 07/13/2016 04:27 PM, Sagi Grimberg wrote:
+ qp_init->cap.max_send_sge = min(attrs->max_sge, SRPT_MAX_SG_PER_WQE);
Why are you limiting the max_sge with SRPT_MAX_SG_PER_WQE? what is the
motivation?
Hello Sagi,
The reason that I want to use a lower value than max_sge is to avoid QP
allocation failures. During my tests with mlx4 adapters I had noticed
that the buffers that are allocated with kmalloc() during QP creation
with max_send_sge = max_sge are so large that QP allocation often fails.
Hence min(..., SRPT_MAX_SGE_PER_WQE).
Bart.
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