RDMA/mlx5: Use mlx5_umem_find_best_quantized_pgoff() for WQ

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This fixes a subtle bug, the WQ mailbox has only 5 bits to describe the
page_offset, while mlx5_ib_get_buf_offset() is hard wired to only work
with 6 bit page_offsets.

Thus it did not properly reject badly aligned buffers.

Fixes: 79b20a6c30 ("IB/mlx5: Add receive Work Queue verbs")
Fixes: 0fb2ed66a1 ("IB/mlx5: Add create and destroy functionality for Raw Packet QP")
Link: https://lore.kernel.org/r/20201115114311.136250-3-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Jason Gunthorpe 2020-11-15 13:43:06 +02:00

parent b045db62f6

commit ad480ea5d6

1 changed files with 31 additions and 22 deletions

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51

drivers/infiniband/hw/mlx5/qp.c

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