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Message-Id: <086609fcbc5965d7d6c4c3ec48157d2cb68f6f8a.1660641154.git.leonro@nvidia.com>
Date: Tue, 16 Aug 2022 13:38:07 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Steffen Klassert <steffen.klassert@...unet.com>,
"David S . Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Saeed Mahameed <saeedm@...dia.com>
Cc: Leon Romanovsky <leonro@...dia.com>,
Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
Paolo Abeni <pabeni@...hat.com>, Raed Salem <raeds@...dia.com>,
ipsec-devel <devel@...ux-ipsec.org>
Subject: [PATCH xfrm-next 19/26] net/mlx5e: Create IPsec policy offload tables
From: Leon Romanovsky <leonro@...dia.com>
Add empty table to be used for IPsec policy offload.
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
.../net/ethernet/mellanox/mlx5/core/en/fs.h | 3 +-
.../mellanox/mlx5/core/en_accel/ipsec_fs.c | 53 ++++++++++++++++++-
.../net/ethernet/mellanox/mlx5/core/fs_core.c | 6 +--
3 files changed, 56 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h b/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
index 9b8cdf2e68ad..6e155ed64d94 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
@@ -78,7 +78,8 @@ enum {
MLX5E_ARFS_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
#endif
#ifdef CONFIG_MLX5_EN_IPSEC
- MLX5E_ACCEL_FS_ESP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
+ MLX5E_ACCEL_FS_POL_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
+ MLX5E_ACCEL_FS_ESP_FT_LEVEL,
MLX5E_ACCEL_FS_ESP_FT_ERR_LEVEL,
#endif
};
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
index b3827e024a1d..1878bca0121a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
@@ -11,6 +11,7 @@
struct mlx5e_ipsec_ft {
struct mutex mutex; /* Protect changes to this struct */
+ struct mlx5_flow_table *pol;
struct mlx5_flow_table *sa;
struct mlx5_flow_table *status;
u32 refcnt;
@@ -23,12 +24,14 @@ struct mlx5e_ipsec_miss {
struct mlx5e_ipsec_rx {
struct mlx5e_ipsec_ft ft;
+ struct mlx5e_ipsec_miss pol;
struct mlx5e_ipsec_miss sa;
struct mlx5e_ipsec_rule status;
};
struct mlx5e_ipsec_tx {
struct mlx5e_ipsec_ft ft;
+ struct mlx5e_ipsec_miss pol;
struct mlx5_flow_namespace *ns;
};
@@ -164,6 +167,10 @@ static int ipsec_miss_create(struct mlx5_core_dev *mdev,
static void rx_destroy(struct mlx5_core_dev *mdev, struct mlx5e_ipsec_rx *rx)
{
+ mlx5_del_flow_rules(rx->pol.rule);
+ mlx5_destroy_flow_group(rx->pol.group);
+ mlx5_destroy_flow_table(rx->ft.pol);
+
mlx5_del_flow_rules(rx->sa.rule);
mlx5_destroy_flow_group(rx->sa.group);
mlx5_destroy_flow_table(rx->ft.sa);
@@ -206,8 +213,27 @@ static int rx_create(struct mlx5_core_dev *mdev, struct mlx5e_ipsec *ipsec,
if (err)
goto err_fs;
+ ft = ipsec_ft_create(mdev, ipsec->fs->ns, MLX5E_ACCEL_FS_POL_FT_LEVEL,
+ MLX5E_NIC_PRIO, 1, XFRM_DEV_OFFLOAD_IN);
+ if (IS_ERR(ft)) {
+ err = PTR_ERR(ft);
+ goto err_pol_ft;
+ }
+ rx->ft.pol = ft;
+ memset(&dest, 0x00, sizeof(dest));
+ dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
+ dest.ft = rx->ft.sa;
+ err = ipsec_miss_create(mdev, rx->ft.pol, &rx->pol, &dest);
+ if (err)
+ goto err_pol_miss;
+
return 0;
+err_pol_miss:
+ mlx5_destroy_flow_table(rx->ft.pol);
+err_pol_ft:
+ mlx5_del_flow_rules(rx->sa.rule);
+ mlx5_destroy_flow_group(rx->sa.group);
err_fs:
mlx5_destroy_flow_table(rx->ft.sa);
err_fs_ft:
@@ -241,7 +267,7 @@ static struct mlx5e_ipsec_rx *rx_ft_get(struct mlx5_core_dev *mdev,
/* connect */
dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
- dest.ft = rx->ft.sa;
+ dest.ft = rx->ft.pol;
mlx5_ttc_fwd_dest(ipsec->fs->ttc, family2tt(family), &dest);
skip:
@@ -281,14 +307,34 @@ static void rx_ft_put(struct mlx5_core_dev *mdev, struct mlx5e_ipsec *ipsec,
/* IPsec TX flow steering */
static int tx_create(struct mlx5_core_dev *mdev, struct mlx5e_ipsec_tx *tx)
{
+ struct mlx5_flow_destination dest = {};
struct mlx5_flow_table *ft;
+ int err;
- ft = ipsec_ft_create(mdev, tx->ns, 0, 0, 1, XFRM_DEV_OFFLOAD_OUT);
+ ft = ipsec_ft_create(mdev, tx->ns, 1, 0, 1, XFRM_DEV_OFFLOAD_OUT);
if (IS_ERR(ft))
return PTR_ERR(ft);
tx->ft.sa = ft;
+
+ ft = ipsec_ft_create(mdev, tx->ns, 0, 0, 1, XFRM_DEV_OFFLOAD_OUT);
+ if (IS_ERR(ft)) {
+ err = PTR_ERR(ft);
+ goto err_pol_ft;
+ }
+ tx->ft.pol = ft;
+ dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
+ dest.ft = tx->ft.sa;
+ err = ipsec_miss_create(mdev, tx->ft.pol, &tx->pol, &dest);
+ if (err)
+ goto err_pol_miss;
return 0;
+
+err_pol_miss:
+ mlx5_destroy_flow_table(tx->ft.pol);
+err_pol_ft:
+ mlx5_destroy_flow_table(tx->ft.sa);
+ return err;
}
static struct mlx5e_ipsec_tx *tx_ft_get(struct mlx5_core_dev *mdev,
@@ -322,6 +368,9 @@ static void tx_ft_put(struct mlx5e_ipsec *ipsec)
if (tx->ft.refcnt)
goto out;
+ mlx5_del_flow_rules(tx->pol.rule);
+ mlx5_destroy_flow_group(tx->pol.group);
+ mlx5_destroy_flow_table(tx->ft.pol);
mlx5_destroy_flow_table(tx->ft.sa);
out:
mutex_unlock(&tx->ft.mutex);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index e3960cdf5131..bb7e8c6f299c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -107,8 +107,8 @@
#define ETHTOOL_PRIO_NUM_LEVELS 1
#define ETHTOOL_NUM_PRIOS 11
#define ETHTOOL_MIN_LEVEL (KERNEL_MIN_LEVEL + ETHTOOL_NUM_PRIOS)
-/* Promiscuous, Vlan, mac, ttc, inner ttc, {UDP/ANY/aRFS/accel/{esp, esp_err}} */
-#define KERNEL_NIC_PRIO_NUM_LEVELS 7
+/* Promiscuous, Vlan, mac, ttc, inner ttc, {UDP/ANY/aRFS/accel/{esp, esp_err}}, IPsec policy */
+#define KERNEL_NIC_PRIO_NUM_LEVELS 8
#define KERNEL_NIC_NUM_PRIOS 1
/* One more level for tc */
#define KERNEL_MIN_LEVEL (KERNEL_NIC_PRIO_NUM_LEVELS + 1)
@@ -129,7 +129,7 @@
#define LAG_MIN_LEVEL (OFFLOADS_MIN_LEVEL + 1)
#define KERNEL_TX_IPSEC_NUM_PRIOS 1
-#define KERNEL_TX_IPSEC_NUM_LEVELS 1
+#define KERNEL_TX_IPSEC_NUM_LEVELS 2
#define KERNEL_TX_MIN_LEVEL (KERNEL_TX_IPSEC_NUM_LEVELS)
struct node_caps {
--
2.37.2
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