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RDMA/irdma: Do not set IBK_LOCAL_DMA_LKEY for GEN3+

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

Fixes: eb31dfc2b4 ("RDMA/irdma: Restrict Memory Window and CQE Timestamping to GEN3")
Signed-off-by: Jacob Moroni <jmoroni@google.com>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Link: https://patch.msgid.link/20251125025350.180-8-tatyana.e.nikolova@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Jacob Moroni
2025-11-24 20:53:48 -06:00
committed by Leon Romanovsky
parent 71d3bdae5e
commit eef3ad030b
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/hw/irdma/verbs.c
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@@ -27,7 +27,8 @@ 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;
props->kernel_cap_flags = IBK_LOCAL_DMA_LKEY;
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;