1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2021 Marvell.
5 #include <rte_cryptodev.h>
6 #include <rte_security.h>
7 #include <rte_security_driver.h>
9 #include <cn9k_ethdev.h>
10 #include <cnxk_security.h>
12 static struct rte_cryptodev_capabilities cn9k_eth_sec_crypto_caps[] = {
14 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
16 .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
18 .algo = RTE_CRYPTO_AEAD_AES_GCM,
44 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
46 .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
48 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
64 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
66 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
68 .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
83 RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
86 static const struct rte_security_capability cn9k_eth_sec_capabilities[] = {
87 { /* IPsec Inline Protocol ESP Tunnel Ingress */
88 .action = RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL,
89 .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
91 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
92 .mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL,
93 .direction = RTE_SECURITY_IPSEC_SA_DIR_INGRESS,
96 .crypto_capabilities = cn9k_eth_sec_crypto_caps,
97 .ol_flags = RTE_SECURITY_TX_OLOAD_NEED_MDATA
99 { /* IPsec Inline Protocol ESP Tunnel Egress */
100 .action = RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL,
101 .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
103 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
104 .mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL,
105 .direction = RTE_SECURITY_IPSEC_SA_DIR_EGRESS,
108 .crypto_capabilities = cn9k_eth_sec_crypto_caps,
109 .ol_flags = RTE_SECURITY_TX_OLOAD_NEED_MDATA
112 .action = RTE_SECURITY_ACTION_TYPE_NONE
117 ar_window_init(struct cn9k_inb_priv_data *inb_priv)
119 if (inb_priv->replay_win_sz > CNXK_ON_AR_WIN_SIZE_MAX) {
120 plt_err("Replay window size:%u is not supported",
121 inb_priv->replay_win_sz);
125 rte_spinlock_init(&inb_priv->ar.lock);
127 * Set window bottom to 1, base and top to size of
130 inb_priv->ar.winb = 1;
131 inb_priv->ar.wint = inb_priv->replay_win_sz;
132 inb_priv->ar.base = inb_priv->replay_win_sz;
138 cn9k_eth_sec_session_create(void *device,
139 struct rte_security_session_conf *conf,
140 struct rte_security_session *sess,
141 struct rte_mempool *mempool)
143 struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)device;
144 struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
145 struct rte_security_ipsec_xform *ipsec;
146 struct cn9k_sec_sess_priv sess_priv;
147 struct rte_crypto_sym_xform *crypto;
148 struct cnxk_eth_sec_sess *eth_sec;
152 if (conf->action_type != RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL)
155 if (conf->protocol != RTE_SECURITY_PROTOCOL_IPSEC)
158 if (rte_security_dynfield_register() < 0)
161 ipsec = &conf->ipsec;
162 crypto = conf->crypto_xform;
163 inbound = !!(ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS);
165 /* Search if a session already exists */
166 if (cnxk_eth_sec_sess_get_by_spi(dev, ipsec->spi, inbound)) {
167 plt_err("%s SA with SPI %u already in use",
168 inbound ? "Inbound" : "Outbound", ipsec->spi);
172 if (rte_mempool_get(mempool, (void **)ð_sec)) {
173 plt_err("Could not allocate security session private data");
177 memset(eth_sec, 0, sizeof(struct cnxk_eth_sec_sess));
181 struct cn9k_inb_priv_data *inb_priv;
182 struct roc_onf_ipsec_inb_sa *inb_sa;
184 PLT_STATIC_ASSERT(sizeof(struct cn9k_inb_priv_data) <
185 ROC_NIX_INL_ONF_IPSEC_INB_SW_RSVD);
187 /* Get Inbound SA from NIX_RX_IPSEC_SA_BASE. Assume no inline
188 * device always for CN9K.
190 inb_sa = (struct roc_onf_ipsec_inb_sa *)
191 roc_nix_inl_inb_sa_get(&dev->nix, false, ipsec->spi);
193 plt_err("Failed to create ingress sa");
198 /* Check if SA is already in use */
199 if (inb_sa->ctl.valid) {
200 plt_err("Inbound SA with SPI %u already in use",
206 memset(inb_sa, 0, sizeof(struct roc_onf_ipsec_inb_sa));
208 /* Fill inbound sa params */
209 rc = cnxk_onf_ipsec_inb_sa_fill(inb_sa, ipsec, crypto);
211 plt_err("Failed to init inbound sa, rc=%d", rc);
215 inb_priv = roc_nix_inl_onf_ipsec_inb_sa_sw_rsvd(inb_sa);
216 /* Back pointer to get eth_sec */
217 inb_priv->eth_sec = eth_sec;
219 /* Save userdata in inb private area */
220 inb_priv->userdata = conf->userdata;
222 inb_priv->replay_win_sz = ipsec->replay_win_sz;
223 if (inb_priv->replay_win_sz) {
224 rc = ar_window_init(inb_priv);
229 /* Prepare session priv */
230 sess_priv.inb_sa = 1;
231 sess_priv.sa_idx = ipsec->spi;
233 /* Pointer from eth_sec -> inb_sa */
234 eth_sec->sa = inb_sa;
235 eth_sec->sess = sess;
236 eth_sec->sa_idx = ipsec->spi;
237 eth_sec->spi = ipsec->spi;
240 TAILQ_INSERT_TAIL(&dev->inb.list, eth_sec, entry);
243 struct cn9k_outb_priv_data *outb_priv;
244 struct roc_onf_ipsec_outb_sa *outb_sa;
245 uintptr_t sa_base = dev->outb.sa_base;
246 struct cnxk_ipsec_outb_rlens *rlens;
249 PLT_STATIC_ASSERT(sizeof(struct cn9k_outb_priv_data) <
250 ROC_NIX_INL_ONF_IPSEC_OUTB_SW_RSVD);
252 /* Alloc an sa index */
253 rc = cnxk_eth_outb_sa_idx_get(dev, &sa_idx);
257 outb_sa = roc_nix_inl_onf_ipsec_outb_sa(sa_base, sa_idx);
258 outb_priv = roc_nix_inl_onf_ipsec_outb_sa_sw_rsvd(outb_sa);
259 rlens = &outb_priv->rlens;
261 memset(outb_sa, 0, sizeof(struct roc_onf_ipsec_outb_sa));
263 /* Fill outbound sa params */
264 rc = cnxk_onf_ipsec_outb_sa_fill(outb_sa, ipsec, crypto);
266 plt_err("Failed to init outbound sa, rc=%d", rc);
267 rc |= cnxk_eth_outb_sa_idx_put(dev, sa_idx);
272 outb_priv->userdata = conf->userdata;
273 outb_priv->sa_idx = sa_idx;
274 outb_priv->eth_sec = eth_sec;
275 /* Start sequence number with 1 */
278 memcpy(&outb_priv->nonce, outb_sa->nonce, 4);
279 if (outb_sa->ctl.enc_type == ROC_IE_ON_SA_ENC_AES_GCM)
280 outb_priv->copy_salt = 1;
283 cnxk_ipsec_outb_rlens_get(rlens, ipsec, crypto);
285 sess_priv.sa_idx = outb_priv->sa_idx;
286 sess_priv.roundup_byte = rlens->roundup_byte;
287 sess_priv.roundup_len = rlens->roundup_len;
288 sess_priv.partial_len = rlens->partial_len;
290 /* Pointer from eth_sec -> outb_sa */
291 eth_sec->sa = outb_sa;
292 eth_sec->sess = sess;
293 eth_sec->sa_idx = sa_idx;
294 eth_sec->spi = ipsec->spi;
296 TAILQ_INSERT_TAIL(&dev->outb.list, eth_sec, entry);
300 /* Sync SA content */
301 plt_atomic_thread_fence(__ATOMIC_ACQ_REL);
303 plt_nix_dbg("Created %s session with spi=%u, sa_idx=%u",
304 inbound ? "inbound" : "outbound", eth_sec->spi,
307 * Update fast path info in priv area.
309 set_sec_session_private_data(sess, (void *)sess_priv.u64);
313 rte_mempool_put(mempool, eth_sec);
318 cn9k_eth_sec_session_destroy(void *device, struct rte_security_session *sess)
320 struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)device;
321 struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
322 struct roc_onf_ipsec_outb_sa *outb_sa;
323 struct roc_onf_ipsec_inb_sa *inb_sa;
324 struct cnxk_eth_sec_sess *eth_sec;
325 struct rte_mempool *mp;
327 eth_sec = cnxk_eth_sec_sess_get_by_sess(dev, sess);
332 inb_sa = eth_sec->sa;
334 inb_sa->ctl.valid = 0;
336 TAILQ_REMOVE(&dev->inb.list, eth_sec, entry);
339 outb_sa = eth_sec->sa;
341 outb_sa->ctl.valid = 0;
343 /* Release Outbound SA index */
344 cnxk_eth_outb_sa_idx_put(dev, eth_sec->sa_idx);
345 TAILQ_REMOVE(&dev->outb.list, eth_sec, entry);
349 /* Sync SA content */
350 plt_atomic_thread_fence(__ATOMIC_ACQ_REL);
352 plt_nix_dbg("Destroyed %s session with spi=%u, sa_idx=%u",
353 eth_sec->inb ? "inbound" : "outbound", eth_sec->spi,
356 /* Put eth_sec object back to pool */
357 mp = rte_mempool_from_obj(eth_sec);
358 set_sec_session_private_data(sess, NULL);
359 rte_mempool_put(mp, eth_sec);
363 static const struct rte_security_capability *
364 cn9k_eth_sec_capabilities_get(void *device __rte_unused)
366 return cn9k_eth_sec_capabilities;
370 cn9k_eth_sec_ops_override(void)
372 static int init_once;
378 /* Update platform specific ops */
379 cnxk_eth_sec_ops.session_create = cn9k_eth_sec_session_create;
380 cnxk_eth_sec_ops.session_destroy = cn9k_eth_sec_session_destroy;
381 cnxk_eth_sec_ops.capabilities_get = cn9k_eth_sec_capabilities_get;