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net/mlx5e: Added common function for to_ipsec_sa_entry

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New function for getting driver internal sa entry from xfrm state.
All checks are done in one function.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Aviad Yehezkel
2018-01-18 16:31:55 +02:00
committed by Saeed Mahameed
parent 05564d0ae0
commit 75ef3f5515
1 changed files with 19 additions and 10 deletions
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drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+19 -10
View File
@@ -51,6 +51,21 @@ struct mlx5e_ipsec_sa_entry {
void *hw_context;
};
static struct mlx5e_ipsec_sa_entry *to_ipsec_sa_entry(struct xfrm_state *x)
{
struct mlx5e_ipsec_sa_entry *sa;
if (!x)
return NULL;
sa = (struct mlx5e_ipsec_sa_entry *)x->xso.offload_handle;
if (!sa)
return NULL;
WARN_ON(sa->x != x);
return sa;
}
struct xfrm_state *mlx5e_ipsec_sadb_rx_lookup(struct mlx5e_ipsec *ipsec,
unsigned int handle)
{
@@ -312,28 +327,22 @@ out:
static void mlx5e_xfrm_del_state(struct xfrm_state *x)
{
struct mlx5e_ipsec_sa_entry *sa_entry;
struct mlx5e_ipsec_sa_entry *sa_entry = to_ipsec_sa_entry(x);
if (!x->xso.offload_handle)
if (!sa_entry)
return;
sa_entry = (struct mlx5e_ipsec_sa_entry *)x->xso.offload_handle;
WARN_ON(sa_entry->x != x);
if (x->xso.flags & XFRM_OFFLOAD_INBOUND)
mlx5e_ipsec_sadb_rx_del(sa_entry);
}
static void mlx5e_xfrm_free_state(struct xfrm_state *x)
{
struct mlx5e_ipsec_sa_entry *sa_entry;
struct mlx5e_ipsec_sa_entry *sa_entry = to_ipsec_sa_entry(x);
if (!x->xso.offload_handle)
if (!sa_entry)
return;
sa_entry = (struct mlx5e_ipsec_sa_entry *)x->xso.offload_handle;
WARN_ON(sa_entry->x != x);
if (sa_entry->hw_context) {
mlx5_accel_esp_free_hw_context(sa_entry->hw_context);
mlx5_accel_esp_destroy_xfrm(sa_entry->xfrm);