net/octeontx2: support link status
[dpdk.git] / drivers / net / octeontx2 / otx2_ethdev_sec.c
index e61d383..1ee597f 100644 (file)
@@ -3,20 +3,23 @@
  */
 
 #include <rte_cryptodev.h>
+#include <rte_esp.h>
 #include <rte_ethdev.h>
 #include <rte_eventdev.h>
+#include <rte_ip.h>
 #include <rte_malloc.h>
 #include <rte_memzone.h>
 #include <rte_security.h>
 #include <rte_security_driver.h>
+#include <rte_udp.h>
 
+#include "otx2_common.h"
 #include "otx2_cryptodev_qp.h"
 #include "otx2_ethdev.h"
 #include "otx2_ethdev_sec.h"
 #include "otx2_ipsec_fp.h"
 #include "otx2_sec_idev.h"
-
-#define ETH_SEC_MAX_PKT_LEN    1450
+#include "otx2_security.h"
 
 struct eth_sec_tag_const {
        RTE_STD_C11
@@ -135,6 +138,59 @@ static const struct rte_security_capability otx2_eth_sec_capabilities[] = {
        }
 };
 
+static void
+lookup_mem_sa_tbl_clear(struct rte_eth_dev *eth_dev)
+{
+       static const char name[] = OTX2_NIX_FASTPATH_LOOKUP_MEM;
+       uint16_t port = eth_dev->data->port_id;
+       const struct rte_memzone *mz;
+       uint64_t **sa_tbl;
+       uint8_t *mem;
+
+       mz = rte_memzone_lookup(name);
+       if (mz == NULL)
+               return;
+
+       mem = mz->addr;
+
+       sa_tbl  = (uint64_t **)RTE_PTR_ADD(mem, OTX2_NIX_SA_TBL_START);
+       if (sa_tbl[port] == NULL)
+               return;
+
+       rte_free(sa_tbl[port]);
+       sa_tbl[port] = NULL;
+}
+
+static int
+lookup_mem_sa_index_update(struct rte_eth_dev *eth_dev, int spi, void *sa)
+{
+       static const char name[] = OTX2_NIX_FASTPATH_LOOKUP_MEM;
+       struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+       uint16_t port = eth_dev->data->port_id;
+       const struct rte_memzone *mz;
+       uint64_t **sa_tbl;
+       uint8_t *mem;
+
+       mz = rte_memzone_lookup(name);
+       if (mz == NULL) {
+               otx2_err("Could not find fastpath lookup table");
+               return -EINVAL;
+       }
+
+       mem = mz->addr;
+
+       sa_tbl = (uint64_t **)RTE_PTR_ADD(mem, OTX2_NIX_SA_TBL_START);
+
+       if (sa_tbl[port] == NULL) {
+               sa_tbl[port] = rte_malloc(NULL, dev->ipsec_in_max_spi *
+                                         sizeof(uint64_t), 0);
+       }
+
+       sa_tbl[port][spi] = (uint64_t)sa;
+
+       return 0;
+}
+
 static inline void
 in_sa_mz_name_get(char *name, int size, uint16_t port)
 {
@@ -160,6 +216,60 @@ in_sa_get(uint16_t port, int sa_index)
        return sa + sa_index;
 }
 
+static int
+ipsec_sa_const_set(struct rte_security_ipsec_xform *ipsec,
+                  struct rte_crypto_sym_xform *xform,
+                  struct otx2_sec_session_ipsec_ip *sess)
+{
+       struct rte_crypto_sym_xform *cipher_xform, *auth_xform;
+
+       sess->partial_len = sizeof(struct rte_ipv4_hdr);
+
+       if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_ESP) {
+               sess->partial_len += sizeof(struct rte_esp_hdr);
+               sess->roundup_len = sizeof(struct rte_esp_tail);
+       } else if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_AH) {
+               sess->partial_len += OTX2_SEC_AH_HDR_LEN;
+       } else {
+               return -EINVAL;
+       }
+
+       if (ipsec->options.udp_encap)
+               sess->partial_len += sizeof(struct rte_udp_hdr);
+
+       if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
+               if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) {
+                       sess->partial_len += OTX2_SEC_AES_GCM_IV_LEN;
+                       sess->partial_len += OTX2_SEC_AES_GCM_MAC_LEN;
+                       sess->roundup_byte = OTX2_SEC_AES_GCM_ROUNDUP_BYTE_LEN;
+               }
+               return 0;
+       }
+
+       if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
+               cipher_xform = xform;
+               auth_xform = xform->next;
+       } else if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) {
+               auth_xform = xform;
+               cipher_xform = xform->next;
+       } else {
+               return -EINVAL;
+       }
+       if (cipher_xform->cipher.algo == RTE_CRYPTO_CIPHER_AES_CBC) {
+               sess->partial_len += OTX2_SEC_AES_CBC_IV_LEN;
+               sess->roundup_byte = OTX2_SEC_AES_CBC_ROUNDUP_BYTE_LEN;
+       } else {
+               return -EINVAL;
+       }
+
+       if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC)
+               sess->partial_len += OTX2_SEC_SHA1_HMAC_LEN;
+       else
+               return -EINVAL;
+
+       return 0;
+}
+
 static int
 hmac_init(struct otx2_ipsec_fp_sa_ctl *ctl, struct otx2_cpt_qp *qp,
          const uint8_t *auth_key, int len, uint8_t *hmac_key)
@@ -202,7 +312,7 @@ hmac_init(struct otx2_ipsec_fp_sa_ctl *ctl, struct otx2_cpt_qp *qp,
 
        timeout = rte_get_timer_cycles() + 5 * rte_get_timer_hz();
 
-       rte_cio_wmb();
+       rte_io_wmb();
 
        do {
                otx2_lmt_mov(qp->lmtline, &inst, 2);
@@ -246,9 +356,11 @@ eth_sec_ipsec_out_sess_create(struct rte_eth_dev *eth_dev,
        struct otx2_ipsec_fp_sa_ctl *ctl;
        struct otx2_ipsec_fp_out_sa *sa;
        struct otx2_sec_session *priv;
+       struct otx2_cpt_inst_s inst;
        struct otx2_cpt_qp *qp;
 
        priv = get_sec_session_private_data(sec_sess);
+       priv->ipsec.dir = RTE_SECURITY_IPSEC_SA_DIR_EGRESS;
        sess = &priv->ipsec.ip;
 
        sa = &sess->out_sa;
@@ -260,6 +372,12 @@ eth_sec_ipsec_out_sess_create(struct rte_eth_dev *eth_dev,
 
        memset(sess, 0, sizeof(struct otx2_sec_session_ipsec_ip));
 
+       sess->seq = 1;
+
+       ret = ipsec_sa_const_set(ipsec, crypto_xform, sess);
+       if (ret < 0)
+               return ret;
+
        if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD)
                memcpy(sa->nonce, &ipsec->salt, 4);
 
@@ -269,6 +387,9 @@ eth_sec_ipsec_out_sess_create(struct rte_eth_dev *eth_dev,
        }
 
        if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
+               /* Start ip id from 1 */
+               sess->ip_id = 1;
+
                if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4) {
                        memcpy(&sa->ip_src, &ipsec->tunnel.ipv4.src_ip,
                               sizeof(struct in_addr));
@@ -303,6 +424,12 @@ eth_sec_ipsec_out_sess_create(struct rte_eth_dev *eth_dev,
        else
                return -EINVAL;
 
+       /* Determine word 7 of CPT instruction */
+       inst.u64[7] = 0;
+       inst.egrp = OTX2_CPT_EGRP_INLINE_IPSEC;
+       inst.cptr = rte_mempool_virt2iova(sa);
+       sess->inst_w7 = inst.u64[7];
+
        /* Get CPT QP to be used for this SA */
        ret = otx2_sec_idev_tx_cpt_qp_get(port, &qp);
        if (ret)
@@ -356,6 +483,7 @@ eth_sec_ipsec_in_sess_create(struct rte_eth_dev *eth_dev,
        ctl = &sa->ctl;
 
        priv = get_sec_session_private_data(sec_sess);
+       priv->ipsec.dir = RTE_SECURITY_IPSEC_SA_DIR_INGRESS;
        sess = &priv->ipsec.ip;
 
        if (ctl->valid) {
@@ -393,6 +521,11 @@ eth_sec_ipsec_in_sess_create(struct rte_eth_dev *eth_dev,
 
        sa->userdata = priv->userdata;
 
+       sa->replay_win_sz = ipsec->replay_win_sz;
+
+       if (lookup_mem_sa_index_update(eth_dev, ipsec->spi, sa))
+               return -EINVAL;
+
        ret = ipsec_fp_sa_ctl_set(ipsec, crypto_xform, ctl);
        if (ret)
                return ret;
@@ -404,7 +537,32 @@ eth_sec_ipsec_in_sess_create(struct rte_eth_dev *eth_dev,
                        return ret;
                ret = hmac_init(ctl, qp, auth_key, auth_key_len, sa->hmac_key);
                otx2_sec_idev_tx_cpt_qp_put(qp);
+               if (ret)
+                       return ret;
+       }
+
+       if (sa->replay_win_sz) {
+               if (sa->replay_win_sz > OTX2_IPSEC_MAX_REPLAY_WIN_SZ) {
+                       otx2_err("Replay window size is not supported");
+                       return -ENOTSUP;
+               }
+               sa->replay = rte_zmalloc(NULL, sizeof(struct otx2_ipsec_replay),
+                               0);
+               if (sa->replay == NULL)
+                       return -ENOMEM;
+
+               rte_spinlock_init(&sa->replay->lock);
+               /*
+                * Set window bottom to 1, base and top to size of
+                * window
+                */
+               sa->replay->winb = 1;
+               sa->replay->wint = sa->replay_win_sz;
+               sa->replay->base = sa->replay_win_sz;
+               sa->esn_low = 0;
+               sa->esn_hi = 0;
        }
+
        return ret;
 }
 
@@ -471,6 +629,15 @@ mempool_put:
        return ret;
 }
 
+static void
+otx2_eth_sec_free_anti_replay(struct otx2_ipsec_fp_in_sa *sa)
+{
+       if (sa != NULL) {
+               if (sa->replay_win_sz && sa->replay)
+                       rte_free(sa->replay);
+       }
+}
+
 static int
 otx2_eth_sec_session_destroy(void *device __rte_unused,
                             struct rte_security_session *sess)
@@ -486,6 +653,10 @@ otx2_eth_sec_session_destroy(void *device __rte_unused,
 
        sess_ip = &priv->ipsec.ip;
 
+       /* Release the anti replay window */
+       if (priv->ipsec.dir == RTE_SECURITY_IPSEC_SA_DIR_INGRESS)
+               otx2_eth_sec_free_anti_replay(sess_ip->in_sa);
+
        /* Release CPT LF used for this session */
        if (sess_ip->qp != NULL) {
                ret = otx2_sec_idev_tx_cpt_qp_put(sess_ip->qp);
@@ -513,7 +684,7 @@ otx2_eth_sec_set_pkt_mdata(void *device __rte_unused,
                            struct rte_mbuf *m, void *params __rte_unused)
 {
        /* Set security session as the pkt metadata */
-       m->udata64 = (uint64_t)session;
+       *rte_security_dynfield(m) = (rte_security_dynfield_t)session;
 
        return 0;
 }
@@ -606,7 +777,7 @@ eth_sec_ipsec_cfg(struct rte_eth_dev *eth_dev, uint8_t tt)
 
        req->ipsec_cfg0.sa_pow2_size =
                        rte_log2_u32(sizeof(struct otx2_ipsec_fp_in_sa));
-       req->ipsec_cfg0.lenm1_max = ETH_SEC_MAX_PKT_LEN - 1;
+       req->ipsec_cfg0.lenm1_max = NIX_MAX_FRS - 1;
 
        req->ipsec_cfg1.sa_idx_w = rte_log2_u32(dev->ipsec_in_max_spi);
        req->ipsec_cfg1.sa_idx_max = dev->ipsec_in_max_spi - 1;
@@ -614,6 +785,34 @@ eth_sec_ipsec_cfg(struct rte_eth_dev *eth_dev, uint8_t tt)
        return otx2_mbox_process(mbox);
 }
 
+int
+otx2_eth_sec_update_tag_type(struct rte_eth_dev *eth_dev)
+{
+       struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+       struct otx2_mbox *mbox = dev->mbox;
+       struct nix_aq_enq_rsp *rsp;
+       struct nix_aq_enq_req *aq;
+       int ret;
+
+       aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+       aq->qidx = 0; /* Read RQ:0 context */
+       aq->ctype = NIX_AQ_CTYPE_RQ;
+       aq->op = NIX_AQ_INSTOP_READ;
+
+       ret = otx2_mbox_process_msg(mbox, (void *)&rsp);
+       if (ret < 0) {
+               otx2_err("Could not read RQ context");
+               return ret;
+       }
+
+       /* Update tag type */
+       ret = eth_sec_ipsec_cfg(eth_dev, rsp->rq.sso_tt);
+       if (ret < 0)
+               otx2_err("Could not update sec eth tag type");
+
+       return ret;
+}
+
 int
 otx2_eth_sec_init(struct rte_eth_dev *eth_dev)
 {
@@ -632,6 +831,9 @@ otx2_eth_sec_init(struct rte_eth_dev *eth_dev)
            !(dev->rx_offloads & DEV_RX_OFFLOAD_SECURITY))
                return 0;
 
+       if (rte_security_dynfield_register() < 0)
+               return -rte_errno;
+
        nb_sa = dev->ipsec_in_max_spi;
        mz_sz = nb_sa * sa_width;
        in_sa_mz_name_get(name, RTE_MEMZONE_NAMESIZE, port);
@@ -670,6 +872,8 @@ otx2_eth_sec_fini(struct rte_eth_dev *eth_dev)
            !(dev->rx_offloads & DEV_RX_OFFLOAD_SECURITY))
                return;
 
+       lookup_mem_sa_tbl_clear(eth_dev);
+
        in_sa_mz_name_get(name, RTE_MEMZONE_NAMESIZE, port);
        rte_memzone_free(rte_memzone_lookup(name));
 }