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From: akhil.goyal@nxp.com
To: dev@dpdk.org
Cc: pablo.de.lara.guarch@intel.com, radu.nicolau@intel.com,
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Akhil Goyal <akhil.goyal@nxp.com>
Date: Fri, 5 Oct 2018 19:03:44 +0530
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Subject: [dpdk-dev] [PATCH v2 3/3] crypto/dpaa2_sec: support pdcp offload
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From: Akhil Goyal <akhil.goyal@nxp.com>
PDCP session configuration for lookaside protocol offload
and data path is added.
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
---
drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 233 ++++++++++++++++++++
drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h | 172 +++++++++++++++
2 files changed, 405 insertions(+)
diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index 265a8e41a..d263c9388 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
@@ -35,6 +35,7 @@ typedef uint64_t dma_addr_t;
/* RTA header files */
#include <hw/desc/ipsec.h>
+#include <hw/desc/pdcp.h>
#include <hw/desc/algo.h>
/* Minimum job descriptor consists of a oneword job descriptor HEADER and
@@ -74,6 +75,9 @@ build_proto_compound_fd(dpaa2_sec_session *sess,
struct rte_mbuf *dst_mbuf = sym_op->m_dst;
int retval;
+ if (!dst_mbuf)
+ dst_mbuf = src_mbuf;
+
/* Save the shared descriptor */
flc = &priv->flc_desc[0].flc;
@@ -1188,6 +1192,9 @@ build_sec_fd(struct rte_crypto_op *op,
case DPAA2_SEC_IPSEC:
ret = build_proto_fd(sess, op, fd, bpid);
break;
+ case DPAA2_SEC_PDCP:
+ ret = build_proto_compound_fd(sess, op, fd, bpid);
+ break;
case DPAA2_SEC_HASH_CIPHER:
default:
DPAA2_SEC_ERR("error: Unsupported session");
@@ -2541,6 +2548,228 @@ dpaa2_sec_set_ipsec_session(struct rte_cryptodev *dev,
return ret;
}
+static int
+dpaa2_sec_set_pdcp_session(struct rte_cryptodev *dev,
+ struct rte_security_session_conf *conf,
+ void *sess)
+{
+ struct rte_security_pdcp_xform *pdcp_xform = &conf->pdcp;
+ struct rte_crypto_sym_xform *xform = conf->crypto_xform;
+ struct rte_crypto_auth_xform *auth_xform = NULL;
+ struct rte_crypto_cipher_xform *cipher_xform;
+ dpaa2_sec_session *session = (dpaa2_sec_session *)sess;
+ struct ctxt_priv *priv;
+ struct dpaa2_sec_dev_private *dev_priv = dev->data->dev_private;
+ struct alginfo authdata, cipherdata;
+ int bufsize = -1;
+ struct sec_flow_context *flc;
+
+ PMD_INIT_FUNC_TRACE();
+
+ memset(session, 0, sizeof(dpaa2_sec_session));
+
+ priv = (struct ctxt_priv *)rte_zmalloc(NULL,
+ sizeof(struct ctxt_priv) +
+ sizeof(struct sec_flc_desc),
+ RTE_CACHE_LINE_SIZE);
+
+ if (priv == NULL) {
+ DPAA2_SEC_ERR("No memory for priv CTXT");
+ return -ENOMEM;
+ }
+
+ priv->fle_pool = dev_priv->fle_pool;
+ flc = &priv->flc_desc[0].flc;
+
+ /* find xfrm types */
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER && xform->next == NULL) {
+ cipher_xform = &xform->cipher;
+ } else if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
+ xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
+ session->ext_params.aead_ctxt.auth_cipher_text = true;
+ cipher_xform = &xform->cipher;
+ auth_xform = &xform->next->auth;
+ } else if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
+ xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
+ session->ext_params.aead_ctxt.auth_cipher_text = false;
+ cipher_xform = &xform->next->cipher;
+ auth_xform = &xform->auth;
+ } else {
+ DPAA2_SEC_ERR("Invalid crypto type");
+ return -EINVAL;
+ }
+
+ session->ctxt_type = DPAA2_SEC_PDCP;
+ if (cipher_xform) {
+ session->cipher_key.data = rte_zmalloc(NULL,
+ cipher_xform->key.length,
+ RTE_CACHE_LINE_SIZE);
+ if (session->cipher_key.data == NULL &&
+ cipher_xform->key.length > 0) {
+ DPAA2_SEC_ERR("No Memory for cipher key");
+ rte_free(priv);
+ return -ENOMEM;
+ }
+ session->cipher_key.length = cipher_xform->key.length;
+ memcpy(session->cipher_key.data, cipher_xform->key.data,
+ cipher_xform->key.length);
+ session->dir = (cipher_xform->op == RTE_CRYPTO_CIPHER_OP_ENCRYPT) ?
+ DIR_ENC : DIR_DEC;
+ session->cipher_alg = cipher_xform->algo;
+ } else {
+ session->cipher_key.data = NULL;
+ session->cipher_key.length = 0;
+ session->cipher_alg = RTE_CRYPTO_CIPHER_NULL;
+ session->dir = DIR_ENC;
+ }
+
+ cipherdata.key = (size_t)session->cipher_key.data;
+ cipherdata.keylen = session->cipher_key.length;
+ cipherdata.key_enc_flags = 0;
+ cipherdata.key_type = RTA_DATA_IMM;
+
+ switch (session->cipher_alg) {
+ case RTE_CRYPTO_CIPHER_SNOW3G_UEA2:
+ cipherdata.algtype = PDCP_CIPHER_TYPE_SNOW;
+ break;
+ case RTE_CRYPTO_CIPHER_ZUC_EEA3:
+ cipherdata.algtype = PDCP_CIPHER_TYPE_ZUC;
+ break;
+ case RTE_CRYPTO_CIPHER_AES_CTR:
+ cipherdata.algtype = PDCP_CIPHER_TYPE_AES;
+ break;
+ case RTE_CRYPTO_CIPHER_NULL:
+ cipherdata.algtype = PDCP_CIPHER_TYPE_NULL;
+ break;
+ default:
+ DPAA2_SEC_ERR("Crypto: Undefined Cipher specified %u",
+ session->cipher_alg);
+ goto out;
+ }
+
+ /* Auth is only applicable for control mode operation. */
+ if (pdcp_xform->domain == RTE_SECURITY_PDCP_MODE_CONTROL) {
+ if (pdcp_xform->sn_size != RTE_SECURITY_PDCP_SN_SIZE_5) {
+ DPAA2_SEC_ERR(
+ "PDCP Seq Num size should be 5 bits for cmode");
+ goto out;
+ }
+ if (auth_xform) {
+ session->auth_key.data = rte_zmalloc(NULL,
+ auth_xform->key.length,
+ RTE_CACHE_LINE_SIZE);
+ if (session->auth_key.data == NULL &&
+ auth_xform->key.length > 0) {
+ DPAA2_SEC_ERR("No Memory for auth key");
+ rte_free(session->cipher_key.data);
+ rte_free(priv);
+ return -ENOMEM;
+ }
+ session->auth_key.length = auth_xform->key.length;
+ memcpy(session->auth_key.data, auth_xform->key.data,
+ auth_xform->key.length);
+ session->auth_alg = auth_xform->algo;
+ } else {
+ session->auth_key.data = NULL;
+ session->auth_key.length = 0;
+ session->auth_alg = RTE_CRYPTO_AUTH_NULL;
+ }
+ authdata.key = (size_t)session->auth_key.data;
+ authdata.keylen = session->auth_key.length;
+ authdata.key_enc_flags = 0;
+ authdata.key_type = RTA_DATA_IMM;
+
+ switch (session->auth_alg) {
+ case RTE_CRYPTO_AUTH_SNOW3G_UIA2:
+ authdata.algtype = PDCP_AUTH_TYPE_SNOW;
+ break;
+ case RTE_CRYPTO_AUTH_ZUC_EIA3:
+ authdata.algtype = PDCP_AUTH_TYPE_ZUC;
+ break;
+ case RTE_CRYPTO_AUTH_AES_CMAC:
+ authdata.algtype = PDCP_AUTH_TYPE_AES;
+ break;
+ case RTE_CRYPTO_AUTH_NULL:
+ authdata.algtype = PDCP_AUTH_TYPE_NULL;
+ break;
+ default:
+ DPAA2_SEC_ERR("Crypto: Unsupported auth alg %u",
+ session->auth_alg);
+ goto out;
+ }
+
+ if (session->dir == DIR_ENC)
+ bufsize = cnstr_shdsc_pdcp_c_plane_encap(
+ priv->flc_desc[0].desc, 1, 0,
+ pdcp_xform->hfn,
+ pdcp_xform->bearer,
+ pdcp_xform->pkt_dir,
+ pdcp_xform->hfn_threshold,
+ &cipherdata, &authdata,
+ 0);
+ else if (session->dir == DIR_DEC)
+ bufsize = cnstr_shdsc_pdcp_c_plane_decap(
+ priv->flc_desc[0].desc, 1, 0,
+ pdcp_xform->hfn,
+ pdcp_xform->bearer,
+ pdcp_xform->pkt_dir,
+ pdcp_xform->hfn_threshold,
+ &cipherdata, &authdata,
+ 0);
+ } else {
+ if (session->dir == DIR_ENC)
+ bufsize = cnstr_shdsc_pdcp_u_plane_encap(
+ priv->flc_desc[0].desc, 1, 0,
+ pdcp_xform->sn_size,
+ pdcp_xform->hfn,
+ pdcp_xform->bearer,
+ pdcp_xform->pkt_dir,
+ pdcp_xform->hfn_threshold,
+ &cipherdata, 0);
+ else if (session->dir == DIR_DEC)
+ bufsize = cnstr_shdsc_pdcp_u_plane_decap(
+ priv->flc_desc[0].desc, 1, 0,
+ pdcp_xform->sn_size,
+ pdcp_xform->hfn,
+ pdcp_xform->bearer,
+ pdcp_xform->pkt_dir,
+ pdcp_xform->hfn_threshold,
+ &cipherdata, 0);
+ }
+
+ if (bufsize < 0) {
+ DPAA2_SEC_ERR("Crypto: Invalid buffer length");
+ goto out;
+ }
+
+ /* Enable the stashing control bit */
+ DPAA2_SET_FLC_RSC(flc);
+ flc->word2_rflc_31_0 = lower_32_bits(
+ (size_t)&(((struct dpaa2_sec_qp *)
+ dev->data->queue_pairs[0])->rx_vq) | 0x14);
+ flc->word3_rflc_63_32 = upper_32_bits(
+ (size_t)&(((struct dpaa2_sec_qp *)
+ dev->data->queue_pairs[0])->rx_vq));
+
+ flc->word1_sdl = (uint8_t)bufsize;
+
+ /* Set EWS bit i.e. enable write-safe */
+ DPAA2_SET_FLC_EWS(flc);
+ /* Set BS = 1 i.e reuse input buffers as output buffers */
+ DPAA2_SET_FLC_REUSE_BS(flc);
+ /* Set FF = 10; reuse input buffers if they provide sufficient space */
+ DPAA2_SET_FLC_REUSE_FF(flc);
+
+ session->ctxt = priv;
+
+ return 0;
+out:
+ rte_free(session->auth_key.data);
+ rte_free(session->cipher_key.data);
+ rte_free(priv);
+ return -1;
+}
+
static int
dpaa2_sec_security_session_create(void *dev,
struct rte_security_session_conf *conf,
@@ -2563,6 +2792,10 @@ dpaa2_sec_security_session_create(void *dev,
break;
case RTE_SECURITY_PROTOCOL_MACSEC:
return -ENOTSUP;
+ case RTE_SECURITY_PROTOCOL_PDCP:
+ ret = dpaa2_sec_set_pdcp_session(cdev, conf,
+ sess_private_data);
+ break;
default:
return -EINVAL;
}
diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h b/drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h
index d015be1e9..907374346 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h
@@ -390,6 +390,162 @@ static const struct rte_cryptodev_capabilities dpaa2_sec_capabilities[] = {
RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
};
+static const struct rte_cryptodev_capabilities dpaa2_pdcp_capabilities[] = {
+ { /* SNOW 3G (UIA2) */
+ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ {.sym = {
+ .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+ {.auth = {
+ .algo = RTE_CRYPTO_AUTH_SNOW3G_UIA2,
+ .block_size = 16,
+ .key_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ },
+ .digest_size = {
+ .min = 4,
+ .max = 4,
+ .increment = 0
+ },
+ .iv_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ }
+ }, }
+ }, }
+ },
+ { /* SNOW 3G (UEA2) */
+ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ {.sym = {
+ .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
+ {.cipher = {
+ .algo = RTE_CRYPTO_CIPHER_SNOW3G_UEA2,
+ .block_size = 16,
+ .key_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ },
+ .iv_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ }
+ }, }
+ }, }
+ },
+ { /* AES CTR */
+ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ {.sym = {
+ .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
+ {.cipher = {
+ .algo = RTE_CRYPTO_CIPHER_AES_CTR,
+ .block_size = 16,
+ .key_size = {
+ .min = 16,
+ .max = 32,
+ .increment = 8
+ },
+ .iv_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ }
+ }, }
+ }, }
+ },
+ { /* NULL (AUTH) */
+ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ {.sym = {
+ .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+ {.auth = {
+ .algo = RTE_CRYPTO_AUTH_NULL,
+ .block_size = 1,
+ .key_size = {
+ .min = 0,
+ .max = 0,
+ .increment = 0
+ },
+ .digest_size = {
+ .min = 0,
+ .max = 0,
+ .increment = 0
+ },
+ .iv_size = { 0 }
+ }, },
+ }, },
+ },
+ { /* NULL (CIPHER) */
+ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ {.sym = {
+ .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
+ {.cipher = {
+ .algo = RTE_CRYPTO_CIPHER_NULL,
+ .block_size = 1,
+ .key_size = {
+ .min = 0,
+ .max = 0,
+ .increment = 0
+ },
+ .iv_size = {
+ .min = 0,
+ .max = 0,
+ .increment = 0
+ }
+ }, },
+ }, }
+ },
+ { /* ZUC (EEA3) */
+ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ {.sym = {
+ .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
+ {.cipher = {
+ .algo = RTE_CRYPTO_CIPHER_ZUC_EEA3,
+ .block_size = 16,
+ .key_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ },
+ .iv_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ }
+ }, }
+ }, }
+ },
+ { /* ZUC (EIA3) */
+ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ {.sym = {
+ .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+ {.auth = {
+ .algo = RTE_CRYPTO_AUTH_ZUC_EIA3,
+ .block_size = 16,
+ .key_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ },
+ .digest_size = {
+ .min = 4,
+ .max = 4,
+ .increment = 0
+ },
+ .iv_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ }
+ }, }
+ }, }
+ },
+
+ RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
+};
+
static const struct rte_security_capability dpaa2_sec_security_cap[] = {
{ /* IPsec Lookaside Protocol offload ESP Transport Egress */
.action = RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL,
@@ -413,6 +569,22 @@ static const struct rte_security_capability dpaa2_sec_security_cap[] = {
},
.crypto_capabilities = dpaa2_sec_capabilities
},
+ { /* PDCP Lookaside Protocol offload Data */
+ .action = RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL,
+ .protocol = RTE_SECURITY_PROTOCOL_PDCP,
+ .pdcp = {
+ .domain = RTE_SECURITY_PDCP_MODE_DATA,
+ },
+ .crypto_capabilities = dpaa2_pdcp_capabilities
+ },
+ { /* PDCP Lookaside Protocol offload Control */
+ .action = RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL,
+ .protocol = RTE_SECURITY_PROTOCOL_PDCP,
+ .pdcp = {
+ .domain = RTE_SECURITY_PDCP_MODE_CONTROL,
+ },
+ .crypto_capabilities = dpaa2_pdcp_capabilities
+ },
{
.action = RTE_SECURITY_ACTION_TYPE_NONE
}
--
2.17.1