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net/mlx5: Use underlay QPN from the root name space 

Root flow table is dynamically changed by the underlying flow steering
layer, and IPoIB/ULPs have no idea what will be the root flow table in
the future, hence we need a dynamic infrastructure to move Underlay QPs
with the root flow table.

Fixes: b3ba51498b ("net/mlx5: Refactor create flow table method to accept underlay QP")
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Yishai Hadas 2017-04-25 10:39:57 +03:00 committed by Saeed Mahameed
parent 5360fd473c
commit 508541146a
8 changed files with 38 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/mellanox/mlx5/core/en.h
View File

@ -1003,7 +1003,7 @@ int mlx5e_create_direct_tirs(struct mlx5e_priv *priv);
void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv);
void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt);
int mlx5e_create_ttc_table(struct mlx5e_priv *priv, u32 underlay_qpn);
int mlx5e_create_ttc_table(struct mlx5e_priv *priv);
void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv);
int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc,

5
drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
View File

@ -800,7 +800,7 @@ void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv)
mlx5e_destroy_flow_table(&ttc->ft);
}
int mlx5e_create_ttc_table(struct mlx5e_priv *priv, u32 underlay_qpn)
int mlx5e_create_ttc_table(struct mlx5e_priv *priv)
{
struct mlx5e_ttc_table *ttc = &priv->fs.ttc;
struct mlx5_flow_table_attr ft_attr = {};
@ -810,7 +810,6 @@ int mlx5e_create_ttc_table(struct mlx5e_priv *priv, u32 underlay_qpn)
ft_attr.max_fte = MLX5E_TTC_TABLE_SIZE;
ft_attr.level = MLX5E_TTC_FT_LEVEL;
ft_attr.prio = MLX5E_NIC_PRIO;
ft_attr.underlay_qpn = underlay_qpn;
ft->t = mlx5_create_flow_table(priv->fs.ns, &ft_attr);
if (IS_ERR(ft->t)) {
@ -1147,7 +1146,7 @@ int mlx5e_create_flow_steering(struct mlx5e_priv *priv)
priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
}
err = mlx5e_create_ttc_table(priv, 0);
err = mlx5e_create_ttc_table(priv);
if (err) {
netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
err);

9
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
View File

@ -40,28 +40,25 @@
#include "eswitch.h"
int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft)
struct mlx5_flow_table *ft, u32 underlay_qpn)
{
u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)] = {0};
u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {0};
if ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) &&
ft->underlay_qpn == 0)
underlay_qpn == 0)
return 0;
MLX5_SET(set_flow_table_root_in, in, opcode,
MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
MLX5_SET(set_flow_table_root_in, in, table_type, ft->type);
MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
MLX5_SET(set_flow_table_root_in, in, underlay_qpn, underlay_qpn);
if (ft->vport) {
MLX5_SET(set_flow_table_root_in, in, vport_number, ft->vport);
MLX5_SET(set_flow_table_root_in, in, other_vport, 1);
}
if ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) &&
ft->underlay_qpn != 0)
MLX5_SET(set_flow_table_root_in, in, underlay_qpn, ft->underlay_qpn);
return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
}

3
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h
View File

@ -71,7 +71,8 @@ int mlx5_cmd_delete_fte(struct mlx5_core_dev *dev,
unsigned int index);
int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
struct mlx5_flow_table *ft);
struct mlx5_flow_table *ft,
u32 underlay_qpn);
int mlx5_cmd_fc_alloc(struct mlx5_core_dev *dev, u16 *id);
int mlx5_cmd_fc_free(struct mlx5_core_dev *dev, u16 id);

25
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
View File

@ -650,7 +650,7 @@ static int update_root_ft_create(struct mlx5_flow_table *ft, struct fs_prio
if (ft->level >= min_level)
return 0;
err = mlx5_cmd_update_root_ft(root->dev, ft);
err = mlx5_cmd_update_root_ft(root->dev, ft, root->underlay_qpn);
if (err)
mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n",
ft->id);
@ -818,8 +818,6 @@ static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespa
goto unlock_root;
}
ft->underlay_qpn = ft_attr->underlay_qpn;
tree_init_node(&ft->node, 1, del_flow_table);
log_table_sz = ft->max_fte ? ilog2(ft->max_fte) : 0;
next_ft = find_next_chained_ft(fs_prio);
@ -1489,7 +1487,8 @@ static int update_root_ft_destroy(struct mlx5_flow_table *ft)
new_root_ft = find_next_ft(ft);
if (new_root_ft) {
int err = mlx5_cmd_update_root_ft(root->dev, new_root_ft);
int err = mlx5_cmd_update_root_ft(root->dev, new_root_ft,
root->underlay_qpn);
if (err) {
mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n",
@ -2062,3 +2061,21 @@ err:
mlx5_cleanup_fs(dev);
return err;
}
int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn)
{
struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns;
root->underlay_qpn = underlay_qpn;
return 0;
}
EXPORT_SYMBOL(mlx5_fs_add_rx_underlay_qpn);
int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn)
{
struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns;
root->underlay_qpn = 0;
return 0;
}
EXPORT_SYMBOL(mlx5_fs_remove_rx_underlay_qpn);

2
drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
View File

@ -118,7 +118,6 @@ struct mlx5_flow_table {
/* FWD rules that point on this flow table */
struct list_head fwd_rules;
u32 flags;
u32 underlay_qpn;
};
struct mlx5_fc_cache {
@ -195,6 +194,7 @@ struct mlx5_flow_root_namespace {
struct mlx5_flow_table *root_ft;
/* Should be held when chaining flow tables */
struct mutex chain_lock;
u32 underlay_qpn;
};
int mlx5_init_fc_stats(struct mlx5_core_dev *dev);

7
drivers/net/ethernet/mellanox/mlx5/core/ipoib.c
View File

@ -160,6 +160,8 @@ 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);
}
@ -174,6 +176,8 @@ 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);
@ -193,7 +197,6 @@ static void mlx5i_cleanup_tx(struct mlx5e_priv *priv)
static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
{
struct mlx5i_priv *ipriv = priv->ppriv;
int err;
priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
@ -209,7 +212,7 @@ static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
}
err = mlx5e_create_ttc_table(priv, ipriv->qp.qpn);
err = mlx5e_create_ttc_table(priv);
if (err) {
netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
err);

4
include/linux/mlx5/fs.h
View File

@ -109,7 +109,6 @@ struct mlx5_flow_table_attr {
int max_fte;
u32 level;
u32 flags;
u32 underlay_qpn;
};
struct mlx5_flow_table *
@ -167,4 +166,7 @@ struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
void mlx5_fc_query_cached(struct mlx5_fc *counter,
u64 *bytes, u64 *packets, u64 *lastuse);
int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
#endif