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net/mlx5e: IPoIB, Modify add/remove underlay QPN flows

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On interface remove, the clean-up was done incorrectly causing
an error in the log:
"SET_FLOW_TABLE_ROOT(0x92f) op_mod(0x0) failed...syndrome (0x7e9f14)"

This was caused by the following flow:
-ndo_uninit:
 Move QP state to RST (this disconnects the QP from FT),
 the QP cannot be attached to any FT unless it is in RTS.

-mlx5_rdma_netdev_free:
 cleanup_rx: Destroy FT
 cleanup_tx: Destroy QP and remove QPN from FT

This caused a problem when destroying current FT we tried to
re-attach the QP to the next FT which is not needed.

The correct flow is:
-mlx5_rdma_netdev_free:
	cleanup_rx: remove QPN from FT & Destroy FT
	cleanup_tx: Destroy QP

Fixes: 508541146af1 ("net/mlx5: Use underlay QPN from the root name space")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Alex Vesker 2017-07-06 15:40:32 +03:00 committed by Saeed Mahameed
parent 219c81f7d1
commit 58569ef8f6
1 changed files with 11 additions and 5 deletions
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16
drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
View File

@ -178,8 +178,6 @@ out:
static void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp)
{
mlx5_fs_remove_rx_underlay_qpn(mdev, qp->qpn);
mlx5_core_destroy_qp(mdev, qp);
}
@ -194,8 +192,6 @@ static int mlx5i_init_tx(struct mlx5e_priv *priv)
return err;
}
mlx5_fs_add_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
err = mlx5e_create_tis(priv->mdev, 0 /* tc */, ipriv->qp.qpn, &priv->tisn[0]);
if (err) {
mlx5_core_warn(priv->mdev, "create tis failed, %d\n", err);
@ -253,6 +249,7 @@ static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
static int mlx5i_init_rx(struct mlx5e_priv *priv)
{
struct mlx5i_priv *ipriv = priv->ppriv;
int err;
err = mlx5e_create_indirect_rqt(priv);
@ -271,12 +268,18 @@ static int mlx5i_init_rx(struct mlx5e_priv *priv)
if (err)
goto err_destroy_indirect_tirs;
err = mlx5i_create_flow_steering(priv);
err = mlx5_fs_add_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
if (err)
goto err_destroy_direct_tirs;
err = mlx5i_create_flow_steering(priv);
if (err)
goto err_remove_rx_underlay_qpn;
return 0;
err_remove_rx_underlay_qpn:
mlx5_fs_remove_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
err_destroy_direct_tirs:
mlx5e_destroy_direct_tirs(priv);
err_destroy_indirect_tirs:
@ -290,6 +293,9 @@ err_destroy_indirect_rqts:
static void mlx5i_cleanup_rx(struct mlx5e_priv *priv)
{
struct mlx5i_priv *ipriv = priv->ppriv;
mlx5_fs_remove_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
mlx5i_destroy_flow_steering(priv);
mlx5e_destroy_direct_tirs(priv);
mlx5e_destroy_indirect_tirs(priv);