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path: root/drivers/infiniband/hw/mlx4/qp.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx4/qp.c')
-rw-r--r--drivers/infiniband/hw/mlx4/qp.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 44c8a0da1507..16f654dc8a46 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -2405,6 +2405,22 @@ static int build_sriov_qp0_header(struct mlx4_ib_sqp *sqp,
return 0;
}
+static u8 sl_to_vl(struct mlx4_ib_dev *dev, u8 sl, int port_num)
+{
+ union sl2vl_tbl_to_u64 tmp_vltab;
+ u8 vl;
+
+ if (sl > 15)
+ return 0xf;
+ tmp_vltab.sl64 = atomic64_read(&dev->sl2vl[port_num - 1]);
+ vl = tmp_vltab.sl8[sl >> 1];
+ if (sl & 1)
+ vl &= 0x0f;
+ else
+ vl >>= 4;
+ return vl;
+}
+
#define MLX4_ROCEV2_QP1_SPORT 0xC000
static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_ud_wr *wr,
void *wqe, unsigned *mlx_seg_len)
@@ -2587,7 +2603,12 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_ud_wr *wr,
sqp->ud_header.vlan.tag = cpu_to_be16(vlan | pcp);
}
} else {
- sqp->ud_header.lrh.virtual_lane = !sqp->qp.ibqp.qp_num ? 15 : 0;
+ sqp->ud_header.lrh.virtual_lane = !sqp->qp.ibqp.qp_num ? 15 :
+ sl_to_vl(to_mdev(ib_dev),
+ sqp->ud_header.lrh.service_level,
+ sqp->qp.port);
+ if (sqp->qp.ibqp.qp_num && sqp->ud_header.lrh.virtual_lane == 15)
+ return -EINVAL;
if (sqp->ud_header.lrh.destination_lid == IB_LID_PERMISSIVE)
sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
}