Support to update a security session and clear a security session
statistics.
Signed-off-by: Jiawen Wu <jiawe...@trustnetic.com>
---
drivers/net/ngbe/ngbe_ipsec.c | 41 +++++++++++++++++++++++++++++++++++
drivers/net/ngbe/ngbe_ipsec.h | 15 +++++++++++++
2 files changed, 56 insertions(+)
diff --git a/drivers/net/ngbe/ngbe_ipsec.c b/drivers/net/ngbe/ngbe_ipsec.c
index 80151d45dc..cc79d7d88f 100644
--- a/drivers/net/ngbe/ngbe_ipsec.c
+++ b/drivers/net/ngbe/ngbe_ipsec.c
@@ -360,6 +360,12 @@ ngbe_crypto_create_session(void *device,
return 0;
}
+static unsigned int
+ngbe_crypto_session_get_size(__rte_unused void *device)
+{
+ return sizeof(struct ngbe_crypto_session);
+}
+
static int
ngbe_crypto_remove_session(void *device,
struct rte_security_session *session)
@@ -385,6 +391,39 @@ ngbe_crypto_remove_session(void *device,
return 0;
}
+static inline uint8_t
+ngbe_crypto_compute_pad_len(struct rte_mbuf *m)
+{
+ if (m->nb_segs == 1) {
+ /* 16 bytes ICV + 2 bytes ESP trailer + payload padding size
+ * payload padding size is stored at <pkt_len - 18>
+ */
+ uint8_t *esp_pad_len = rte_pktmbuf_mtod_offset(m, uint8_t *,
+ rte_pktmbuf_pkt_len(m) -
+ (ESP_TRAILER_SIZE + ESP_ICV_SIZE));
+ return *esp_pad_len + ESP_TRAILER_SIZE + ESP_ICV_SIZE;
+ }
+ return 0;
+}
+
+static int
+ngbe_crypto_update_mb(void *device __rte_unused,
+ struct rte_security_session *session,
+ struct rte_mbuf *m, void *params __rte_unused)
+{
+ struct ngbe_crypto_session *ic_session =
+ get_sec_session_private_data(session);
+ if (ic_session->op == NGBE_OP_AUTHENTICATED_ENCRYPTION) {
+ union ngbe_crypto_tx_desc_md *mdata =
+ (union ngbe_crypto_tx_desc_md *)
+ rte_security_dynfield(m);
+ mdata->enc = 1;
+ mdata->sa_idx = ic_session->sa_index;
+ mdata->pad_len = ngbe_crypto_compute_pad_len(m);
+ }
+ return 0;
+}
+
static const struct rte_security_capability *
ngbe_crypto_capabilities_get(void *device __rte_unused)
{
@@ -513,7 +552,9 @@ ngbe_crypto_capabilities_get(void *device __rte_unused)
static struct rte_security_ops ngbe_security_ops = {
.session_create = ngbe_crypto_create_session,
+ .session_get_size = ngbe_crypto_session_get_size,
.session_destroy = ngbe_crypto_remove_session,
+ .set_pkt_metadata = ngbe_crypto_update_mb,
.capabilities_get = ngbe_crypto_capabilities_get
};
diff --git a/drivers/net/ngbe/ngbe_ipsec.h b/drivers/net/ngbe/ngbe_ipsec.h
index 8442bb2157..fa5f21027b 100644
--- a/drivers/net/ngbe/ngbe_ipsec.h
+++ b/drivers/net/ngbe/ngbe_ipsec.h
@@ -18,6 +18,9 @@
#define IPSEC_MAX_RX_IP_COUNT 16
#define IPSEC_MAX_SA_COUNT 16
+#define ESP_ICV_SIZE 16
+#define ESP_TRAILER_SIZE 2
+
enum ngbe_operation {
NGBE_OP_AUTHENTICATED_ENCRYPTION,
NGBE_OP_AUTHENTICATED_DECRYPTION
@@ -69,6 +72,18 @@ struct ngbe_crypto_tx_sa_table {
uint8_t used;
};
+union ngbe_crypto_tx_desc_md {
+ uint64_t data;
+ struct {
+ /**< SA table index */
+ uint32_t sa_idx;
+ /**< ICV and ESP trailer length */
+ uint8_t pad_len;
+ /**< enable encryption */
+ uint8_t enc;
+ };
+};
+
struct ngbe_ipsec {
struct ngbe_crypto_rx_ip_table rx_ip_tbl[IPSEC_MAX_RX_IP_COUNT];
struct ngbe_crypto_rx_sa_table rx_sa_tbl[IPSEC_MAX_SA_COUNT];
--
2.21.0.windows.1
