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[ Upstream commit 71586dd2001087e89e344e2c7dcee6b4a53bb6de ] In order to improve performance by balancing the load between different banks of cache, the QPC cache is desigend to choose one of 8 banks according to lower 3 bits of QPN. The hns driver needs to count the number of QP on each bank and then assigns the QP being created to the bank with the minimum load first. Link: https://lore.kernel.org/r/1606220649-1465-1-git-send-email-liweihang@huawei.com Signed-off-by: Yangyang Li <liyangyang20@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Stable-dep-of: 203b70fda634 ("RDMA/hns: Fix return value in hns_roce_map_mr_sg") Signed-off-by: Sasha Levin <sashal@kernel.org> |
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