From: Patrisious Haddad <phaddad@xxxxxxxxxx>
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")
Signed-off-by: Patrisious Haddad <phaddad@xxxxxxxxxx>
Reviewed-by: Maor Gottlieb <maorg@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/qp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index b2fca110346c..e5abbcfc1d57 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -4458,6 +4458,8 @@ 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, &qp->dct.mdct, qp->dct.in,
MLX5_ST_SZ_BYTES(create_dct_in), out,
--
2.31.1
