Avihai Horon d43b020b0f RDMA/mlx5: Check pcie_relaxed_ordering_enabled() in UMR ... relaxed_ordering_read HCA capability is set if both the device supports relaxed ordering (RO) read and RO is set in PCI config space. RO in PCI config space can change during runtime. This will change the value of relaxed_ordering_read HCA capability in FW, but the driver will not see it since it queries the capabilities only once. This can lead to the following scenario: 1. RO in PCI config space is enabled. 2. User creates MKey without RO. 3. RO in PCI config space is disabled. As a result, relaxed_ordering_read HCA capability is turned off in FW but remains on in driver copy of the capabilities. 4. User requests to reconfig the MKey with RO via UMR. 5. Driver will try to reconfig the MKey with RO read although it shouldn't (as relaxed_ordering_read HCA capability is really off). To fix this, check pcie_relaxed_ordering_enabled() before setting RO read in UMR. Fixes: 896ec97353 ("RDMA/mlx5: Set mkey relaxed ordering by UMR with ConnectX-7") Signed-off-by: Avihai Horon <avihaih@nvidia.com> Reviewed-by: Shay Drory <shayd@nvidia.com> Link: https://lore.kernel.org/r/8d39eb8317e7bed1a354311a20ae707788fd94ed.1681131553.git.leon@kernel.org Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>		2023-04-16 13:29:14 +03:00
..
core	RDMA/cm: Trace icm_send_rej event before the cm state is reset	2023-04-09 12:52:57 +03:00
hw	RDMA/mlx5: Check pcie_relaxed_ordering_enabled() in UMR	2023-04-16 13:29:14 +03:00
sw	RDMA: Add ib_virt_dma_to_page()	2023-04-16 11:08:07 +03:00
ulp	RDMA/srpt: Add a check for valid 'mad_agent' pointer	2023-04-09 13:04:26 +03:00
Kconfig	RDMA: Disable IB HW for UML	2022-12-04 15:22:03 +02:00
Makefile