common/cpt: allocate auth key dynamically

Reduce session private data size by allocating
auth_key dynamically as required. Added auth_key_iova
to eliminate any impact on fastpath.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>

diff --git a/drivers/common/cpt/cpt_mcode_defines.h b/drivers/common/cpt/cpt_mcode_defines.h
index 624bdcf..f63fae6 100644 (file)
--- a/drivers/common/cpt/cpt_mcode_defines.h
+++ b/drivers/common/cpt/cpt_mcode_defines.h
@@ -327,7 +327,8 @@ struct cpt_ctx {
                mc_zuc_snow3g_ctx_t zs_ctx;
                mc_kasumi_ctx_t k_ctx;
        } mc_ctx;
-       uint8_t  auth_key[1024];
+       uint8_t *auth_key;
+       uint64_t auth_key_iova;
 };
 
 /* Prime and order fields of built-in elliptic curves */

diff --git a/drivers/common/cpt/cpt_ucode.h b/drivers/common/cpt/cpt_ucode.h
index bb3a862..006411c 100644 (file)
--- a/drivers/common/cpt/cpt_ucode.h
+++ b/drivers/common/cpt/cpt_ucode.h
@@ -561,8 +561,7 @@ cpt_digest_gen_prep(uint32_t flags,
        i = 0;
 
        if (ctx->hmac) {
-               uint64_t k_dma = params->ctx_buf.dma_addr +
-                       offsetof(struct cpt_ctx, auth_key);
+               uint64_t k_dma = ctx->auth_key_iova;
                /* Key */
                i = fill_sg_comp(gather_comp, i, k_dma,
                                 RTE_ALIGN_CEIL(key_len, 8));
@@ -2551,7 +2550,12 @@ cpt_fc_auth_set_key(struct cpt_ctx *cpt_ctx, auth_type_t type,
 
        if (key_len) {
                cpt_ctx->hmac = 1;
-               memset(cpt_ctx->auth_key, 0, sizeof(cpt_ctx->auth_key));
+
+               cpt_ctx->auth_key = rte_zmalloc(NULL, key_len, 8);
+               if (cpt_ctx->auth_key == NULL)
+                       return -1;
+
+               cpt_ctx->auth_key_iova = rte_mem_virt2iova(cpt_ctx->auth_key);
                memcpy(cpt_ctx->auth_key, key, key_len);
                cpt_ctx->auth_key_len = key_len;
                memset(fctx->hmac.ipad, 0, sizeof(fctx->hmac.ipad));

diff --git a/drivers/crypto/octeontx/otx_cryptodev_ops.c b/drivers/crypto/octeontx/otx_cryptodev_ops.c
index 2fe04eb..eac6796 100644 (file)
--- a/drivers/crypto/octeontx/otx_cryptodev_ops.c
+++ b/drivers/crypto/octeontx/otx_cryptodev_ops.c
@@ -292,6 +292,11 @@ sym_session_configure(int driver_id, struct rte_crypto_sym_xform *xform,
        if ((GET_SESS_FC_TYPE(misc) == HASH_HMAC) &&
                        cpt_mac_len_verify(&temp_xform->auth)) {
                CPT_LOG_ERR("MAC length is not supported");
+               struct cpt_ctx *ctx = SESS_PRIV(misc);
+               if (ctx->auth_key != NULL) {
+                       rte_free(ctx->auth_key);
+                       ctx->auth_key = NULL;
+               }
                ret = -ENOTSUP;
                goto priv_put;
        }
@@ -320,11 +325,19 @@ static void
 sym_session_clear(int driver_id, struct rte_cryptodev_sym_session *sess)
 {
        void *priv = get_sym_session_private_data(sess, driver_id);
+       struct cpt_sess_misc *misc;
        struct rte_mempool *pool;
+       struct cpt_ctx *ctx;
 
        if (priv == NULL)
                return;
 
+       misc = priv;
+       ctx = SESS_PRIV(misc);
+
+       if (ctx->auth_key != NULL)
+               rte_free(ctx->auth_key);
+
        memset(priv, 0, cpt_get_session_size());
 
        pool = rte_mempool_from_obj(priv);

diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
index bb73a16..4210015 100644 (file)
--- a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
@@ -408,6 +408,11 @@ sym_session_configure(int driver_id, struct rte_crypto_sym_xform *xform,
        if ((GET_SESS_FC_TYPE(misc) == HASH_HMAC) &&
                        cpt_mac_len_verify(&temp_xform->auth)) {
                CPT_LOG_ERR("MAC length is not supported");
+               struct cpt_ctx *ctx = SESS_PRIV(misc);
+               if (ctx->auth_key != NULL) {
+                       rte_free(ctx->auth_key);
+                       ctx->auth_key = NULL;
+               }
                ret = -ENOTSUP;
                goto priv_put;
        }

diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_ops_helper.h b/drivers/crypto/octeontx2/otx2_cryptodev_ops_helper.h
index 764daad..01c081a 100644 (file)
--- a/drivers/crypto/octeontx2/otx2_cryptodev_ops_helper.h
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_ops_helper.h
@@ -11,11 +11,19 @@ static void
 sym_session_clear(int driver_id, struct rte_cryptodev_sym_session *sess)
 {
        void *priv = get_sym_session_private_data(sess, driver_id);
+       struct cpt_sess_misc *misc;
        struct rte_mempool *pool;
+       struct cpt_ctx *ctx;
 
        if (priv == NULL)
                return;
 
+       misc = priv;
+       ctx = SESS_PRIV(misc);
+
+       if (ctx->auth_key != NULL)
+               rte_free(ctx->auth_key);
+
        memset(priv, 0, cpt_get_session_size());
 
        pool = rte_mempool_from_obj(priv);