Commit eef3ad03 authored by Jacob Moroni's avatar Jacob Moroni Committed by Leon Romanovsky
Browse files

RDMA/irdma: Do not set IBK_LOCAL_DMA_LKEY for GEN3+ 



The GEN3 hardware does not appear to support IBK_LOCAL_DMA_LKEY. Attempts
to use it will result in an AE.

Fixes: eb31dfc2 ("RDMA/irdma: Restrict Memory Window and CQE Timestamping to GEN3")
Signed-off-by: default avatarJacob Moroni <jmoroni@google.com>
Signed-off-by: default avatarTatyana Nikolova <tatyana.e.nikolova@intel.com>
Link: https://patch.msgid.link/20251125025350.180-8-tatyana.e.nikolova@intel.com


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 71d3bdae

drivers/infiniband/hw/irdma/verbs.c

+2 −1
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ static int irdma_query_device(struct ib_device *ibdev, 
			irdma_fw_minor_ver(&rf->sc_dev);

	props->device_cap_flags = IB_DEVICE_MEM_WINDOW |

				  IB_DEVICE_MEM_MGT_EXTENSIONS;

	if (hw_attrs->uk_attrs.hw_rev < IRDMA_GEN_3)

		props->kernel_cap_flags = IBK_LOCAL_DMA_LKEY;

	props->vendor_id = pcidev->vendor;

	props->vendor_part_id = pcidev->device;