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net/mlx5: E-Switch, Avoid redundant memory allocation

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struct esw_mc_addr is a small struct that can be part of struct
mlx5_eswitch. Define it as a field and not as a pointer and save the
kzalloc call and then error flow handling.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Eli Cohen 2017-02-28 16:52:21 -06:00 committed by Saeed Mahameed
parent 0f6e4cf674
commit 0a0ab1d2cc
2 changed files with 10 additions and 19 deletions
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20
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -53,13 +53,6 @@ struct esw_uc_addr {
u32 vport;
};
/* E-Switch MC FDB table hash node */
struct esw_mc_addr { /* SRIOV only */
struct l2addr_node node;
struct mlx5_flow_handle *uplink_rule; /* Forward to uplink rule */
u32 refcnt;
};
/* Vport UC/MC hash node */
struct vport_addr {
struct l2addr_node node;
@ -817,7 +810,7 @@ static void esw_update_vport_mc_promisc(struct mlx5_eswitch *esw, u32 vport_num)
static void esw_apply_vport_rx_mode(struct mlx5_eswitch *esw, u32 vport_num,
bool promisc, bool mc_promisc)
{
struct esw_mc_addr *allmulti_addr = esw->mc_promisc;
struct esw_mc_addr *allmulti_addr = &esw->mc_promisc;
struct mlx5_vport *vport = &esw->vports[vport_num];
if (IS_ERR_OR_NULL(vport->allmulti_rule) != mc_promisc)
@ -1688,7 +1681,7 @@ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw)
esw_info(esw->dev, "disable SRIOV: active vports(%d) mode(%d)\n",
esw->enabled_vports, esw->mode);
mc_promisc = esw->mc_promisc;
mc_promisc = &esw->mc_promisc;
nvports = esw->enabled_vports;
for (i = 0; i < esw->total_vports; i++)
@ -1732,7 +1725,6 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
{
int l2_table_size = 1 << MLX5_CAP_GEN(dev, log_max_l2_table);
int total_vports = MLX5_TOTAL_VPORTS(dev);
struct esw_mc_addr *mc_promisc;
struct mlx5_eswitch *esw;
int vport_num;
int err;
@ -1761,13 +1753,6 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
}
esw->l2_table.size = l2_table_size;
mc_promisc = kzalloc(sizeof(*mc_promisc), GFP_KERNEL);
if (!mc_promisc) {
err = -ENOMEM;
goto abort;
}
esw->mc_promisc = mc_promisc;
esw->work_queue = create_singlethread_workqueue("mlx5_esw_wq");
if (!esw->work_queue) {
err = -ENOMEM;
@ -1835,7 +1820,6 @@ void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
esw->dev->priv.eswitch = NULL;
destroy_workqueue(esw->work_queue);
kfree(esw->l2_table.bitmap);
kfree(esw->mc_promisc);
kfree(esw->offloads.vport_reps);
kfree(esw->vports);
kfree(esw);

9
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -212,6 +212,13 @@ struct mlx5_esw_offload {
u8 encap;
};
/* E-Switch MC FDB table hash node */
struct esw_mc_addr { /* SRIOV only */
struct l2addr_node node;
struct mlx5_flow_handle *uplink_rule; /* Forward to uplink rule */
u32 refcnt;
};
struct mlx5_eswitch {
struct mlx5_core_dev *dev;
struct mlx5_l2_table l2_table;
@ -225,7 +232,7 @@ struct mlx5_eswitch {
* and async SRIOV admin state changes
*/
struct mutex state_lock;
struct esw_mc_addr *mc_promisc;
struct esw_mc_addr mc_promisc;
struct {
bool enabled;