crypto/cnxk: add security session operations

Add security session ops in cn10k crypto PMD
to support lookaside protocol offload IPsec.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Archana Muniganti <marchana@marvell.com>
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: Tejasree Kondoj <ktejasree@marvell.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>

diff --git a/drivers/crypto/cnxk/cn10k_cryptodev.c b/drivers/crypto/cnxk/cn10k_cryptodev.c
index ffe654c..cacf9c2 100644 (file)
--- a/drivers/crypto/cnxk/cn10k_cryptodev.c
+++ b/drivers/crypto/cnxk/cn10k_cryptodev.c
@@ -12,6 +12,7 @@
 
 #include "cn10k_cryptodev.h"
 #include "cn10k_cryptodev_ops.h"
+#include "cn10k_ipsec.h"
 #include "cnxk_cryptodev.h"
 #include "cnxk_cryptodev_capabilities.h"
 #include "cnxk_cryptodev_sec.h"
@@ -101,6 +102,7 @@ cn10k_cpt_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
                             RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED;
 
        cn10k_cpt_set_enqdeq_fns(dev);
+       cn10k_sec_ops_override();
 
        return 0;
 

diff --git a/drivers/crypto/cnxk/cn10k_ipsec.c b/drivers/crypto/cnxk/cn10k_ipsec.c
new file mode 100644 (file)
index 0000000..1d567bf
--- /dev/null
+++ b/drivers/crypto/cnxk/cn10k_ipsec.c
@@ -0,0 +1,275 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+
+#include <rte_malloc.h>
+#include <rte_cryptodev.h>
+#include <rte_esp.h>
+#include <rte_ip.h>
+#include <rte_security.h>
+#include <rte_security_driver.h>
+#include <rte_udp.h>
+
+#include "cnxk_cryptodev.h"
+#include "cnxk_ipsec.h"
+#include "cnxk_security.h"
+#include "cn10k_ipsec.h"
+
+#include "roc_api.h"
+
+static int
+ipsec_xform_aead_verify(struct rte_security_ipsec_xform *ipsec_xfrm,
+                       struct rte_crypto_sym_xform *crypto_xfrm)
+{
+       if (ipsec_xfrm->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS &&
+           crypto_xfrm->aead.op != RTE_CRYPTO_AEAD_OP_ENCRYPT)
+               return -EINVAL;
+
+       if (ipsec_xfrm->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS &&
+           crypto_xfrm->aead.op != RTE_CRYPTO_AEAD_OP_DECRYPT)
+               return -EINVAL;
+
+       if (crypto_xfrm->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) {
+               switch (crypto_xfrm->aead.key.length) {
+               case ROC_CPT_AES128_KEY_LEN:
+               case ROC_CPT_AES192_KEY_LEN:
+               case ROC_CPT_AES256_KEY_LEN:
+                       break;
+               default:
+                       return -EINVAL;
+               }
+               return 0;
+       }
+
+       return -ENOTSUP;
+}
+
+static int
+cn10k_ipsec_xform_verify(struct rte_security_ipsec_xform *ipsec_xfrm,
+                        struct rte_crypto_sym_xform *crypto_xfrm)
+{
+       if ((ipsec_xfrm->direction != RTE_SECURITY_IPSEC_SA_DIR_INGRESS) &&
+           (ipsec_xfrm->direction != RTE_SECURITY_IPSEC_SA_DIR_EGRESS))
+               return -EINVAL;
+
+       if ((ipsec_xfrm->proto != RTE_SECURITY_IPSEC_SA_PROTO_ESP) &&
+           (ipsec_xfrm->proto != RTE_SECURITY_IPSEC_SA_PROTO_AH))
+               return -EINVAL;
+
+       if ((ipsec_xfrm->mode != RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT) &&
+           (ipsec_xfrm->mode != RTE_SECURITY_IPSEC_SA_MODE_TUNNEL))
+               return -EINVAL;
+
+       if ((ipsec_xfrm->tunnel.type != RTE_SECURITY_IPSEC_TUNNEL_IPV4) &&
+           (ipsec_xfrm->tunnel.type != RTE_SECURITY_IPSEC_TUNNEL_IPV6))
+               return -EINVAL;
+
+       if (crypto_xfrm->type == RTE_CRYPTO_SYM_XFORM_AEAD)
+               return ipsec_xform_aead_verify(ipsec_xfrm, crypto_xfrm);
+
+       return -ENOTSUP;
+}
+
+static uint64_t
+ipsec_cpt_inst_w7_get(struct roc_cpt *roc_cpt, void *sa)
+{
+       union cpt_inst_w7 w7;
+
+       w7.u64 = 0;
+       w7.s.egrp = roc_cpt->eng_grp[CPT_ENG_TYPE_IE];
+       w7.s.ctx_val = 1;
+       w7.s.cptr = (uint64_t)sa;
+       rte_mb();
+
+       return w7.u64;
+}
+
+static int
+cn10k_ipsec_outb_sa_create(struct roc_cpt *roc_cpt,
+                          struct rte_security_ipsec_xform *ipsec_xfrm,
+                          struct rte_crypto_sym_xform *crypto_xfrm,
+                          struct rte_security_session *sec_sess)
+{
+       struct roc_ot_ipsec_outb_sa *out_sa;
+       struct cnxk_ipsec_outb_rlens rlens;
+       struct cn10k_sec_session *sess;
+       struct cn10k_ipsec_sa *sa;
+       union cpt_inst_w4 inst_w4;
+       int ret;
+
+       sess = get_sec_session_private_data(sec_sess);
+       sa = &sess->sa;
+       out_sa = &sa->out_sa;
+
+       memset(out_sa, 0, sizeof(struct roc_ot_ipsec_outb_sa));
+
+       /* Translate security parameters to SA */
+       ret = cnxk_ot_ipsec_outb_sa_fill(out_sa, ipsec_xfrm, crypto_xfrm);
+       if (ret)
+               return ret;
+
+       sa->inst.w7 = ipsec_cpt_inst_w7_get(roc_cpt, sa);
+
+       /* Get Rlen calculation data */
+       ret = cnxk_ipsec_outb_rlens_get(&rlens, ipsec_xfrm, crypto_xfrm);
+       if (ret)
+               return ret;
+
+       sa->partial_len = rlens.partial_len;
+       sa->roundup_byte = rlens.roundup_byte;
+       sa->roundup_len = rlens.roundup_len;
+
+       /* pre-populate CPT INST word 4 */
+       inst_w4.u64 = 0;
+       inst_w4.s.opcode_major = ROC_IE_OT_MAJOR_OP_PROCESS_OUTBOUND_IPSEC;
+       inst_w4.s.param1 = 0;
+       sa->inst.w4 = inst_w4.u64;
+
+       return 0;
+}
+
+static int
+cn10k_ipsec_inb_sa_create(struct roc_cpt *roc_cpt,
+                         struct rte_security_ipsec_xform *ipsec_xfrm,
+                         struct rte_crypto_sym_xform *crypto_xfrm,
+                         struct rte_security_session *sec_sess)
+{
+       struct roc_ot_ipsec_inb_sa *in_sa;
+       struct cn10k_sec_session *sess;
+       struct cn10k_ipsec_sa *sa;
+       union cpt_inst_w4 inst_w4;
+       int ret;
+
+       sess = get_sec_session_private_data(sec_sess);
+       sa = &sess->sa;
+       in_sa = &sa->in_sa;
+
+       /* Translate security parameters to SA */
+       ret = cnxk_ot_ipsec_inb_sa_fill(in_sa, ipsec_xfrm, crypto_xfrm);
+       if (ret)
+               return ret;
+
+       /* TODO add support for antireplay */
+       sa->in_sa.w0.s.ar_win = 0;
+
+       /* TODO add support for udp encap */
+
+       sa->inst.w7 = ipsec_cpt_inst_w7_get(roc_cpt, sa);
+
+       /* pre-populate CPT INST word 4 */
+       inst_w4.u64 = 0;
+       inst_w4.s.opcode_major = ROC_IE_OT_MAJOR_OP_PROCESS_INBOUND_IPSEC;
+
+       /* Disable checksum verification for now */
+       inst_w4.s.param1 = 7;
+       sa->inst.w4 = inst_w4.u64;
+
+       return 0;
+}
+
+static int
+cn10k_ipsec_session_create(void *dev,
+                          struct rte_security_ipsec_xform *ipsec_xfrm,
+                          struct rte_crypto_sym_xform *crypto_xfrm,
+                          struct rte_security_session *sess)
+{
+       struct rte_cryptodev *crypto_dev = dev;
+       struct roc_cpt *roc_cpt;
+       struct cnxk_cpt_vf *vf;
+       int ret;
+
+       vf = crypto_dev->data->dev_private;
+       roc_cpt = &vf->cpt;
+
+       if (crypto_dev->data->queue_pairs[0] == NULL) {
+               plt_err("Setup cpt queue pair before creating security session");
+               return -EPERM;
+       }
+
+       ret = cn10k_ipsec_xform_verify(ipsec_xfrm, crypto_xfrm);
+       if (ret)
+               return ret;
+
+       if (ipsec_xfrm->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS)
+               return cn10k_ipsec_inb_sa_create(roc_cpt, ipsec_xfrm,
+                                                crypto_xfrm, sess);
+       else
+               return cn10k_ipsec_outb_sa_create(roc_cpt, ipsec_xfrm,
+                                                 crypto_xfrm, sess);
+}
+
+static int
+cn10k_sec_session_create(void *device, struct rte_security_session_conf *conf,
+                        struct rte_security_session *sess,
+                        struct rte_mempool *mempool)
+{
+       struct cn10k_sec_session *priv;
+       int ret;
+
+       if (conf->action_type != RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL)
+               return -EINVAL;
+
+       if (rte_security_dynfield_register() < 0)
+               return -ENOTSUP;
+
+       if (rte_mempool_get(mempool, (void **)&priv)) {
+               plt_err("Could not allocate security session private data");
+               return -ENOMEM;
+       }
+
+       set_sec_session_private_data(sess, priv);
+
+       priv->userdata = conf->userdata;
+
+       if (conf->protocol != RTE_SECURITY_PROTOCOL_IPSEC) {
+               ret = -ENOTSUP;
+               goto mempool_put;
+       }
+       ret = cn10k_ipsec_session_create(device, &conf->ipsec,
+                                        conf->crypto_xform, sess);
+       if (ret)
+               goto mempool_put;
+
+       return 0;
+
+mempool_put:
+       rte_mempool_put(mempool, priv);
+       set_sec_session_private_data(sess, NULL);
+       return ret;
+}
+
+static int
+cn10k_sec_session_destroy(void *device __rte_unused,
+                         struct rte_security_session *sess)
+{
+       struct cn10k_sec_session *priv;
+       struct rte_mempool *sess_mp;
+
+       priv = get_sec_session_private_data(sess);
+
+       if (priv == NULL)
+               return 0;
+
+       sess_mp = rte_mempool_from_obj(priv);
+
+       set_sec_session_private_data(sess, NULL);
+       rte_mempool_put(sess_mp, priv);
+
+       return 0;
+}
+
+static unsigned int
+cn10k_sec_session_get_size(void *device __rte_unused)
+{
+       return sizeof(struct cn10k_sec_session);
+}
+
+/* Update platform specific security ops */
+void
+cn10k_sec_ops_override(void)
+{
+       /* Update platform specific ops */
+       cnxk_sec_ops.session_create = cn10k_sec_session_create;
+       cnxk_sec_ops.session_destroy = cn10k_sec_session_destroy;
+       cnxk_sec_ops.session_get_size = cn10k_sec_session_get_size;
+}

diff --git a/drivers/crypto/cnxk/cn10k_ipsec.h b/drivers/crypto/cnxk/cn10k_ipsec.h
new file mode 100644 (file)
index 0000000..668282f
--- /dev/null
+++ b/drivers/crypto/cnxk/cn10k_ipsec.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+
+#ifndef __CN10K_IPSEC_H__
+#define __CN10K_IPSEC_H__
+
+#include <rte_security.h>
+
+#include "cnxk_ipsec.h"
+
+#define CN10K_IPSEC_SA_CTX_HDR_SIZE 1
+
+struct cn10k_ipsec_sa {
+       union {
+               /** Inbound SA */
+               struct roc_ot_ipsec_inb_sa in_sa;
+               /** Outbound SA */
+               struct roc_ot_ipsec_outb_sa out_sa;
+       };
+       /** Pre-populated CPT inst words */
+       struct cnxk_cpt_inst_tmpl inst;
+       uint8_t partial_len;
+       uint8_t roundup_len;
+       uint8_t roundup_byte;
+};
+
+struct cn10k_sec_session {
+       struct cn10k_ipsec_sa sa;
+       void *userdata;
+       /**< Userdata registered by the application */
+} __rte_cache_aligned;
+
+void cn10k_sec_ops_override(void);
+
+#endif /* __CN10K_IPSEC_H__ */

diff --git a/drivers/crypto/cnxk/cnxk_ipsec.h b/drivers/crypto/cnxk/cnxk_ipsec.h
new file mode 100644 (file)
index 0000000..f6897a0
--- /dev/null
+++ b/drivers/crypto/cnxk/cnxk_ipsec.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+#ifndef __CNXK_IPSEC_H__
+#define __CNXK_IPSEC_H__
+
+#include <rte_security.h>
+#include <rte_security_driver.h>
+
+#include "roc_api.h"
+
+extern struct rte_security_ops cnxk_sec_ops;
+
+struct cnxk_cpt_inst_tmpl {
+       uint64_t w2;
+       uint64_t w4;
+       uint64_t w7;
+};
+
+#endif /* __CNXK_IPSEC_H__ */

diff --git a/drivers/crypto/cnxk/meson.build b/drivers/crypto/cnxk/meson.build
index a2b461e..c56d6cf 100644 (file)
--- a/drivers/crypto/cnxk/meson.build
+++ b/drivers/crypto/cnxk/meson.build
@@ -13,6 +13,7 @@ sources = files(
         'cn9k_cryptodev_ops.c',
         'cn10k_cryptodev.c',
         'cn10k_cryptodev_ops.c',
+        'cn10k_ipsec.c',
         'cnxk_cryptodev.c',
         'cnxk_cryptodev_capabilities.c',
         'cnxk_cryptodev_ops.c',
@@ -20,3 +21,5 @@ sources = files(
 )
 
 deps += ['bus_pci', 'common_cnxk', 'security']
+
+includes += include_directories('../../../lib/net')