The current connection scheduling mechanism (RoundRobin) doesn't take into account the qpair type and assigns each new qpair to the next poll group. As a side effect there might occur a disbalance when some poll group handles more IO qpairs than others. In RDMA transport it is possible to get the qpair type before the controller creation using a private data from the rdma_cm event, this allows to schedule admin and IO qpairs in the balanced way.
Change-Id: I90c368a41c4cd0f5347a83cab7511e4494f05b29
Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Signed-off-by: Sasha Kotchubievsky <sashakot@mellanox.com>
Signed-off-by: Evgenii Kochetov <evgeniik@mellanox.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/468993
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
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