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[ Upstream commit acca72e ] QP's with the same SRQ, working on different CQs and running in parallel on different CPUs could lead to a race when maintaining the SRQ consumer count, and leads to FW running out of SRQs. Update the consumer atomically. Make sure the wqe_prod is updated after the sge_prod due to FW requirements. Fixes: 3491c9e ("qedr: Add support for kernel mode SRQ's") Link: https://lore.kernel.org/r/20200708195526.31040-1-ybason@marvell.com Signed-off-by: Michal Kalderon <mkalderon@marvell.com> Signed-off-by: Yuval Basson <ybason@marvell.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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