[PATCH v2 11/25] crypto/cnxk: add security session destroy

[Tejasree Kondoj]

From: Vidya Sagar Velumuri <vvelum...@marvell.com>

Add support for rte_security session destroy for cn20k

Signed-off-by: Vidya Sagar Velumuri <vvelum...@marvell.com>
---
 drivers/crypto/cnxk/cn20k_cryptodev_sec.c | 17 +++++++-
 drivers/crypto/cnxk/cn20k_ipsec.c         | 51 ++++++++++++++++++++++-
 2 files changed, 64 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/cnxk/cn20k_cryptodev_sec.c 
b/drivers/crypto/cnxk/cn20k_cryptodev_sec.c
index cf82c33e89..2a39338556 100644
--- a/drivers/crypto/cnxk/cn20k_cryptodev_sec.c
+++ b/drivers/crypto/cnxk/cn20k_cryptodev_sec.c
@@ -38,8 +38,21 @@ cn20k_sec_session_create(void *dev, struct 
rte_security_session_conf *conf,
 static int
 cn20k_sec_session_destroy(void *dev, struct rte_security_session *sec_sess)
 {
-       RTE_SET_USED(dev);
-       RTE_SET_USED(sec_sess);
+       struct cn20k_sec_session *cn20k_sec_sess;
+       struct rte_cryptodev *crypto_dev = dev;
+       struct cnxk_cpt_qp *qp;
+
+       if (unlikely(sec_sess == NULL))
+               return -EINVAL;
+
+       qp = crypto_dev->data->queue_pairs[0];
+       if (unlikely(qp == NULL))
+               return -ENOTSUP;
+
+       cn20k_sec_sess = (struct cn20k_sec_session *)sec_sess;
+
+       if (cn20k_sec_sess->proto == RTE_SECURITY_PROTOCOL_IPSEC)
+               return cn20k_sec_ipsec_session_destroy(qp, cn20k_sec_sess);
 
        return -EINVAL;
 }
diff --git a/drivers/crypto/cnxk/cn20k_ipsec.c 
b/drivers/crypto/cnxk/cn20k_ipsec.c
index 4fa3872ef9..e19e080600 100644
--- a/drivers/crypto/cnxk/cn20k_ipsec.c
+++ b/drivers/crypto/cnxk/cn20k_ipsec.c
@@ -276,8 +276,55 @@ cn20k_ipsec_session_create(struct cnxk_cpt_vf *vf, struct 
cnxk_cpt_qp *qp,
 int
 cn20k_sec_ipsec_session_destroy(struct cnxk_cpt_qp *qp, struct 
cn20k_sec_session *sess)
 {
-       RTE_SET_USED(qp);
-       RTE_SET_USED(sess);
+       union roc_ow_ipsec_sa_word2 *w2;
+       struct cn20k_ipsec_sa *sa;
+       struct roc_cpt_lf *lf;
+       void *sa_dptr = NULL;
+       int ret;
+
+       lf = &qp->lf;
+
+       sa = &sess->sa;
+
+       /* Trigger CTX flush to write dirty data back to DRAM */
+       roc_cpt_lf_ctx_flush(lf, &sa->in_sa, false);
+
+       ret = -1;
+
+       if (sess->ipsec.is_outbound) {
+               sa_dptr = plt_zmalloc(sizeof(struct roc_ow_ipsec_outb_sa), 8);
+               if (sa_dptr != NULL) {
+                       roc_ow_ipsec_outb_sa_init(sa_dptr);
+
+                       ret = roc_cpt_ctx_write(lf, sa_dptr, &sa->out_sa,
+                                               sizeof(struct 
roc_ow_ipsec_outb_sa));
+               }
+       } else {
+               sa_dptr = plt_zmalloc(sizeof(struct roc_ow_ipsec_inb_sa), 8);
+               if (sa_dptr != NULL) {
+                       roc_ow_ipsec_inb_sa_init(sa_dptr);
+
+                       ret = roc_cpt_ctx_write(lf, sa_dptr, &sa->in_sa,
+                                               sizeof(struct 
roc_ow_ipsec_inb_sa));
+               }
+       }
+
+       plt_free(sa_dptr);
+
+       if (ret) {
+               /* MC write_ctx failed. Attempt reload of CTX */
+
+               /* Wait for 1 ms so that flush is complete */
+               rte_delay_ms(1);
+
+               w2 = (union roc_ow_ipsec_sa_word2 *)&sa->in_sa.w2;
+               w2->s.valid = 0;
+
+               rte_atomic_thread_fence(rte_memory_order_seq_cst);
+
+               /* Trigger CTX reload to fetch new data from DRAM */
+               roc_cpt_lf_ctx_reload(lf, &sa->in_sa);
+       }
 
        return 0;
 }
-- 
2.25.1