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| author | Patrisious Haddad <phaddad@nvidia.com> | 2021-10-06 12:31:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-02 18:26:45 +0100 |
| commit | 2864b6d54244b82a8c7d4628a43055c57bfba80c (patch) | |
| tree | 20b215814d6941f1c014a1fdb3708c507950df3d | |
| parent | 326da4f6ffdbd8671e86f69ded7a714dcc12fecf (diff) | |
| download | linux-2864b6d54244b82a8c7d4628a43055c57bfba80c.tar.gz linux-2864b6d54244b82a8c7d4628a43055c57bfba80c.tar.bz2 linux-2864b6d54244b82a8c7d4628a43055c57bfba80c.zip | |
RDMA/mlx5: Set user priority for DCT
commit 1ab52ac1e9bc9391f592c9fa8340a6e3e9c36286 upstream.
Currently, the driver doesn't set the PCP-based priority for DCT, hence
DCT response packets are transmitted without user priority.
Fix it by setting user provided priority in the eth_prio field in the DCT
context, which in turn sets the value in the transmitted packet.
Fixes: 776a3906b692 ("IB/mlx5: Add support for DC target QP")
Link: https://lore.kernel.org/r/5fd2d94a13f5742d8803c218927322257d53205c.1633512672.git.leonro@nvidia.com
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 10f6ae4f8f3f..361b1b859782 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -3387,6 +3387,8 @@ static int mlx5_ib_modify_dct(struct ib_qp *ibqp, struct ib_qp_attr *attr, MLX5_SET(dctc, dctc, mtu, attr->path_mtu); MLX5_SET(dctc, dctc, my_addr_index, attr->ah_attr.grh.sgid_index); MLX5_SET(dctc, dctc, hop_limit, attr->ah_attr.grh.hop_limit); + if (attr->ah_attr.type == RDMA_AH_ATTR_TYPE_ROCE) + MLX5_SET(dctc, dctc, eth_prio, attr->ah_attr.sl & 0x7); err = mlx5_core_create_dct(dev->mdev, &qp->dct.mdct, qp->dct.in, MLX5_ST_SZ_BYTES(create_dct_in)); |