net/mlx5: add C++ include guard to public header
[dpdk.git] / drivers / net / iavf / iavf_rxtx.c
index e65f15c..94819e5 100644 (file)
@@ -27,6 +27,7 @@
 
 #include "iavf.h"
 #include "iavf_rxtx.h"
+#include "iavf_ipsec_crypto.h"
 #include "rte_pmd_iavf.h"
 
 /* Offset of mbuf dynamic field for protocol extraction's metadata */
@@ -39,6 +40,7 @@ uint64_t rte_pmd_ifd_dynflag_proto_xtr_ipv6_mask;
 uint64_t rte_pmd_ifd_dynflag_proto_xtr_ipv6_flow_mask;
 uint64_t rte_pmd_ifd_dynflag_proto_xtr_tcp_mask;
 uint64_t rte_pmd_ifd_dynflag_proto_xtr_ip_offset_mask;
+uint64_t rte_pmd_ifd_dynflag_proto_xtr_ipsec_crypto_said_mask;
 
 uint8_t
 iavf_proto_xtr_type_to_rxdid(uint8_t flex_type)
@@ -51,6 +53,8 @@ iavf_proto_xtr_type_to_rxdid(uint8_t flex_type)
                [IAVF_PROTO_XTR_IPV6_FLOW] = IAVF_RXDID_COMMS_AUX_IPV6_FLOW,
                [IAVF_PROTO_XTR_TCP]       = IAVF_RXDID_COMMS_AUX_TCP,
                [IAVF_PROTO_XTR_IP_OFFSET] = IAVF_RXDID_COMMS_AUX_IP_OFFSET,
+               [IAVF_PROTO_XTR_IPSEC_CRYPTO_SAID] =
+                               IAVF_RXDID_COMMS_IPSEC_CRYPTO,
        };
 
        return flex_type < RTE_DIM(rxdid_map) ?
@@ -508,6 +512,12 @@ iavf_select_rxd_to_pkt_fields_handler(struct iavf_rx_queue *rxq, uint32_t rxdid)
                rxq->rxd_to_pkt_fields =
                        iavf_rxd_to_pkt_fields_by_comms_aux_v2;
                break;
+       case IAVF_RXDID_COMMS_IPSEC_CRYPTO:
+               rxq->xtr_ol_flag =
+                       rte_pmd_ifd_dynflag_proto_xtr_ipsec_crypto_said_mask;
+               rxq->rxd_to_pkt_fields =
+                       iavf_rxd_to_pkt_fields_by_comms_aux_v2;
+               break;
        case IAVF_RXDID_COMMS_OVS_1:
                rxq->rxd_to_pkt_fields = iavf_rxd_to_pkt_fields_by_comms_ovs;
                break;
@@ -638,8 +648,8 @@ iavf_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
                return -ENOMEM;
        }
 
-       /* Allocate the maximun number of RX ring hardware descriptor with
-        * a liitle more to support bulk allocate.
+       /* Allocate the maximum number of RX ring hardware descriptor with
+        * a little more to support bulk allocate.
         */
        len = IAVF_MAX_RING_DESC + IAVF_RX_MAX_BURST;
        ring_size = RTE_ALIGN(len * sizeof(union iavf_rx_desc),
@@ -692,6 +702,8 @@ iavf_dev_tx_queue_setup(struct rte_eth_dev *dev,
                       const struct rte_eth_txconf *tx_conf)
 {
        struct iavf_hw *hw = IAVF_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct iavf_adapter *adapter =
+               IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
        struct iavf_info *vf =
                IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
        struct iavf_tx_queue *txq;
@@ -736,9 +748,9 @@ iavf_dev_tx_queue_setup(struct rte_eth_dev *dev,
                return -ENOMEM;
        }
 
-       if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN_V2) {
+       if (adapter->vf.vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN_V2) {
                struct virtchnl_vlan_supported_caps *insertion_support =
-                       &vf->vlan_v2_caps.offloads.insertion_support;
+                       &adapter->vf.vlan_v2_caps.offloads.insertion_support;
                uint32_t insertion_cap;
 
                if (insertion_support->outer)
@@ -762,6 +774,10 @@ iavf_dev_tx_queue_setup(struct rte_eth_dev *dev,
        txq->offloads = offloads;
        txq->tx_deferred_start = tx_conf->tx_deferred_start;
 
+       if (iavf_ipsec_crypto_supported(adapter))
+               txq->ipsec_crypto_pkt_md_offset =
+                       iavf_security_get_pkt_md_offset(adapter);
+
        /* Allocate software ring */
        txq->sw_ring =
                rte_zmalloc_socket("iavf tx sw ring",
@@ -1084,6 +1100,70 @@ iavf_flex_rxd_to_vlan_tci(struct rte_mbuf *mb,
 #endif
 }
 
+static inline void
+iavf_flex_rxd_to_ipsec_crypto_said_get(struct rte_mbuf *mb,
+                         volatile union iavf_rx_flex_desc *rxdp)
+{
+       volatile struct iavf_32b_rx_flex_desc_comms_ipsec *desc =
+               (volatile struct iavf_32b_rx_flex_desc_comms_ipsec *)rxdp;
+
+       mb->dynfield1[0] = desc->ipsec_said &
+                        IAVF_RX_FLEX_DESC_IPSEC_CRYPTO_SAID_MASK;
+       }
+
+static inline void
+iavf_flex_rxd_to_ipsec_crypto_status(struct rte_mbuf *mb,
+                         volatile union iavf_rx_flex_desc *rxdp,
+                         struct iavf_ipsec_crypto_stats *stats)
+{
+       uint16_t status1 = rte_le_to_cpu_64(rxdp->wb.status_error1);
+
+       if (status1 & BIT(IAVF_RX_FLEX_DESC_STATUS1_IPSEC_CRYPTO_PROCESSED)) {
+               uint16_t ipsec_status;
+
+               mb->ol_flags |= RTE_MBUF_F_RX_SEC_OFFLOAD;
+
+               ipsec_status = status1 &
+                       IAVF_RX_FLEX_DESC_IPSEC_CRYPTO_STATUS_MASK;
+
+
+               if (unlikely(ipsec_status !=
+                       IAVF_IPSEC_CRYPTO_STATUS_SUCCESS)) {
+                       mb->ol_flags |= RTE_MBUF_F_RX_SEC_OFFLOAD_FAILED;
+
+                       switch (ipsec_status) {
+                       case IAVF_IPSEC_CRYPTO_STATUS_SAD_MISS:
+                               stats->ierrors.sad_miss++;
+                               break;
+                       case IAVF_IPSEC_CRYPTO_STATUS_NOT_PROCESSED:
+                               stats->ierrors.not_processed++;
+                               break;
+                       case IAVF_IPSEC_CRYPTO_STATUS_ICV_CHECK_FAIL:
+                               stats->ierrors.icv_check++;
+                               break;
+                       case IAVF_IPSEC_CRYPTO_STATUS_LENGTH_ERR:
+                               stats->ierrors.ipsec_length++;
+                               break;
+                       case IAVF_IPSEC_CRYPTO_STATUS_MISC_ERR:
+                               stats->ierrors.misc++;
+                               break;
+}
+
+                       stats->ierrors.count++;
+                       return;
+               }
+
+               stats->icount++;
+               stats->ibytes += rxdp->wb.pkt_len & 0x3FFF;
+
+               if (rxdp->wb.rxdid == IAVF_RXDID_COMMS_IPSEC_CRYPTO &&
+                       ipsec_status !=
+                               IAVF_IPSEC_CRYPTO_STATUS_SAD_MISS)
+                       iavf_flex_rxd_to_ipsec_crypto_said_get(mb, rxdp);
+       }
+}
+
+
 /* Translate the rx descriptor status and error fields to pkt flags */
 static inline uint64_t
 iavf_rxd_to_pkt_flags(uint64_t qword)
@@ -1402,6 +1482,8 @@ iavf_recv_pkts_flex_rxd(void *rx_queue,
                rxm->packet_type = ptype_tbl[IAVF_RX_FLEX_DESC_PTYPE_M &
                        rte_le_to_cpu_16(rxd.wb.ptype_flex_flags0)];
                iavf_flex_rxd_to_vlan_tci(rxm, &rxd);
+               iavf_flex_rxd_to_ipsec_crypto_status(rxm, &rxd,
+                               &rxq->stats.ipsec_crypto);
                rxq->rxd_to_pkt_fields(rxq, rxm, &rxd);
                pkt_flags = iavf_flex_rxd_error_to_pkt_flags(rx_stat_err0);
                rxm->ol_flags |= pkt_flags;
@@ -1544,6 +1626,8 @@ iavf_recv_scattered_pkts_flex_rxd(void *rx_queue, struct rte_mbuf **rx_pkts,
                first_seg->packet_type = ptype_tbl[IAVF_RX_FLEX_DESC_PTYPE_M &
                        rte_le_to_cpu_16(rxd.wb.ptype_flex_flags0)];
                iavf_flex_rxd_to_vlan_tci(first_seg, &rxd);
+               iavf_flex_rxd_to_ipsec_crypto_status(first_seg, &rxd,
+                               &rxq->stats.ipsec_crypto);
                rxq->rxd_to_pkt_fields(rxq, first_seg, &rxd);
                pkt_flags = iavf_flex_rxd_error_to_pkt_flags(rx_stat_err0);
 
@@ -1782,6 +1866,8 @@ iavf_rx_scan_hw_ring_flex_rxd(struct iavf_rx_queue *rxq)
                        mb->packet_type = ptype_tbl[IAVF_RX_FLEX_DESC_PTYPE_M &
                                rte_le_to_cpu_16(rxdp[j].wb.ptype_flex_flags0)];
                        iavf_flex_rxd_to_vlan_tci(mb, &rxdp[j]);
+                       iavf_flex_rxd_to_ipsec_crypto_status(mb, &rxdp[j],
+                               &rxq->stats.ipsec_crypto);
                        rxq->rxd_to_pkt_fields(rxq, mb, &rxdp[j]);
                        stat_err0 = rte_le_to_cpu_16(rxdp[j].wb.status_error0);
                        pkt_flags = iavf_flex_rxd_error_to_pkt_flags(stat_err0);
@@ -2075,25 +2161,50 @@ iavf_xmit_cleanup(struct iavf_tx_queue *txq)
        return 0;
 }
 
-
+/* Check if the context descriptor is needed for TX offloading */
+static inline uint16_t
+iavf_calc_context_desc(uint64_t flags, uint8_t vlan_flag)
+{
+       if (flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG |
+                       RTE_MBUF_F_TX_TUNNEL_MASK))
+               return 1;
+       if (flags & RTE_MBUF_F_TX_VLAN &&
+           vlan_flag & IAVF_TX_FLAGS_VLAN_TAG_LOC_L2TAG2)
+               return 1;
+       return 0;
+}
 
 static inline void
-iavf_fill_ctx_desc_cmd_field(volatile uint64_t *field, struct rte_mbuf *m)
+iavf_fill_ctx_desc_cmd_field(volatile uint64_t *field, struct rte_mbuf *m,
+               uint8_t vlan_flag)
 {
        uint64_t cmd = 0;
 
        /* TSO enabled */
        if (m->ol_flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG))
-               cmd = IAVF_TX_CTX_DESC_TSO << IAVF_TXD_DATA_QW1_CMD_SHIFT;
-
-       /* Time Sync - Currently not supported */
+               cmd = IAVF_TX_CTX_DESC_TSO << IAVF_TXD_CTX_QW1_CMD_SHIFT;
 
-       /* Outer L2 TAG 2 Insertion - Currently not supported */
-       /* Inner L2 TAG 2 Insertion - Currently not supported */
+       if (m->ol_flags & RTE_MBUF_F_TX_VLAN &&
+                       vlan_flag & IAVF_TX_FLAGS_VLAN_TAG_LOC_L2TAG2) {
+               cmd |= IAVF_TX_CTX_DESC_IL2TAG2
+                       << IAVF_TXD_CTX_QW1_CMD_SHIFT;
+       }
 
        *field |= cmd;
 }
 
+static inline void
+iavf_fill_ctx_desc_ipsec_field(volatile uint64_t *field,
+       struct iavf_ipsec_crypto_pkt_metadata *ipsec_md)
+{
+       uint64_t ipsec_field =
+               (uint64_t)ipsec_md->ctx_desc_ipsec_params <<
+                       IAVF_TXD_CTX_QW1_IPSEC_PARAMS_CIPHERBLK_SHIFT;
+
+       *field |= ipsec_field;
+}
+
+
 static inline void
 iavf_fill_ctx_desc_tunnelling_field(volatile uint64_t *qw0,
                const struct rte_mbuf *m)
@@ -2127,15 +2238,19 @@ iavf_fill_ctx_desc_tunnelling_field(volatile uint64_t *qw0,
 
 static inline uint16_t
 iavf_fill_ctx_desc_segmentation_field(volatile uint64_t *field,
-       struct rte_mbuf *m)
+       struct rte_mbuf *m, struct iavf_ipsec_crypto_pkt_metadata *ipsec_md)
 {
        uint64_t segmentation_field = 0;
        uint64_t total_length = 0;
 
-       total_length = m->pkt_len - (m->l2_len + m->l3_len + m->l4_len);
+       if (m->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD) {
+               total_length = ipsec_md->l4_payload_len;
+       } else {
+               total_length = m->pkt_len - (m->l2_len + m->l3_len + m->l4_len);
 
-       if (m->ol_flags & RTE_MBUF_F_TX_TUNNEL_MASK)
-               total_length -= m->outer_l3_len;
+               if (m->ol_flags & RTE_MBUF_F_TX_TUNNEL_MASK)
+                       total_length -= m->outer_l3_len;
+       }
 
 #ifdef RTE_LIBRTE_IAVF_DEBUG_TX
        if (!m->l4_len || !m->tso_segsz)
@@ -2164,7 +2279,8 @@ struct iavf_tx_context_desc_qws {
 
 static inline void
 iavf_fill_context_desc(volatile struct iavf_tx_context_desc *desc,
-       struct rte_mbuf *m, uint16_t *tlen)
+       struct rte_mbuf *m, struct iavf_ipsec_crypto_pkt_metadata *ipsec_md,
+       uint16_t *tlen, uint8_t vlan_flag)
 {
        volatile struct iavf_tx_context_desc_qws *desc_qws =
                        (volatile struct iavf_tx_context_desc_qws *)desc;
@@ -2172,12 +2288,17 @@ iavf_fill_context_desc(volatile struct iavf_tx_context_desc *desc,
        desc_qws->qw1 = IAVF_TX_DESC_DTYPE_CONTEXT;
 
        /* fill command field */
-       iavf_fill_ctx_desc_cmd_field(&desc_qws->qw1, m);
+       iavf_fill_ctx_desc_cmd_field(&desc_qws->qw1, m, vlan_flag);
 
        /* fill segmentation field */
        if (m->ol_flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG)) {
+               /* fill IPsec field */
+               if (m->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD)
+                       iavf_fill_ctx_desc_ipsec_field(&desc_qws->qw1,
+                               ipsec_md);
+
                *tlen = iavf_fill_ctx_desc_segmentation_field(&desc_qws->qw1,
-                               m);
+                               m, ipsec_md);
        }
 
        /* fill tunnelling field */
@@ -2188,12 +2309,47 @@ iavf_fill_context_desc(volatile struct iavf_tx_context_desc *desc,
 
        desc_qws->qw0 = rte_cpu_to_le_64(desc_qws->qw0);
        desc_qws->qw1 = rte_cpu_to_le_64(desc_qws->qw1);
+
+       if (vlan_flag & IAVF_TX_FLAGS_VLAN_TAG_LOC_L2TAG2)
+               desc->l2tag2 = m->vlan_tci;
 }
 
 
+static inline void
+iavf_fill_ipsec_desc(volatile struct iavf_tx_ipsec_desc *desc,
+       const struct iavf_ipsec_crypto_pkt_metadata *md, uint16_t *ipsec_len)
+{
+       desc->qw0 = rte_cpu_to_le_64(((uint64_t)md->l4_payload_len <<
+               IAVF_IPSEC_TX_DESC_QW0_L4PAYLEN_SHIFT) |
+               ((uint64_t)md->esn << IAVF_IPSEC_TX_DESC_QW0_IPSECESN_SHIFT) |
+               ((uint64_t)md->esp_trailer_len <<
+                               IAVF_IPSEC_TX_DESC_QW0_TRAILERLEN_SHIFT));
+
+       desc->qw1 = rte_cpu_to_le_64(((uint64_t)md->sa_idx <<
+               IAVF_IPSEC_TX_DESC_QW1_IPSECSA_SHIFT) |
+               ((uint64_t)md->next_proto <<
+                               IAVF_IPSEC_TX_DESC_QW1_IPSECNH_SHIFT) |
+               ((uint64_t)(md->len_iv & 0x3) <<
+                               IAVF_IPSEC_TX_DESC_QW1_IVLEN_SHIFT) |
+               ((uint64_t)(md->ol_flags & IAVF_IPSEC_CRYPTO_OL_FLAGS_NATT ?
+                               1ULL : 0ULL) <<
+                               IAVF_IPSEC_TX_DESC_QW1_UDP_SHIFT) |
+               (uint64_t)IAVF_TX_DESC_DTYPE_IPSEC);
+
+       /**
+        * TODO: Pre-calculate this in the Session initialization
+        *
+        * Calculate IPsec length required in data descriptor func when TSO
+        * offload is enabled
+        */
+       *ipsec_len = sizeof(struct rte_esp_hdr) + (md->len_iv >> 2) +
+                       (md->ol_flags & IAVF_IPSEC_CRYPTO_OL_FLAGS_NATT ?
+                       sizeof(struct rte_udp_hdr) : 0);
+}
+
 static inline void
 iavf_build_data_desc_cmd_offset_fields(volatile uint64_t *qw1,
-               struct rte_mbuf *m)
+               struct rte_mbuf *m, uint8_t vlan_flag)
 {
        uint64_t command = 0;
        uint64_t offset = 0;
@@ -2204,7 +2360,8 @@ iavf_build_data_desc_cmd_offset_fields(volatile uint64_t *qw1,
        command = (uint64_t)IAVF_TX_DESC_CMD_ICRC;
 
        /* Descriptor based VLAN insertion */
-       if (m->ol_flags & RTE_MBUF_F_TX_VLAN) {
+       if ((vlan_flag & IAVF_TX_FLAGS_VLAN_TAG_LOC_L2TAG1) &&
+                       m->ol_flags & RTE_MBUF_F_TX_VLAN) {
                command |= (uint64_t)IAVF_TX_DESC_CMD_IL2TAG1;
                l2tag1 |= m->vlan_tci;
        }
@@ -2271,10 +2428,9 @@ iavf_fill_data_desc(volatile struct iavf_tx_desc *desc,
        desc->buffer_addr = rte_mbuf_data_iova(m);
 
        /* calculate data buffer size less set header lengths */
-       if ((m->ol_flags & RTE_MBUF_F_TX_TUNNEL_MASK) &&
-                       (m->ol_flags & (RTE_MBUF_F_TX_TCP_SEG |
-                                       RTE_MBUF_F_TX_UDP_SEG))) {
-               hdrlen += m->outer_l3_len;
+       if (m->ol_flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG)) {
+               if (m->ol_flags & RTE_MBUF_F_TX_TUNNEL_MASK)
+                       hdrlen += m->outer_l3_len;
                if (m->ol_flags & RTE_MBUF_F_TX_L4_MASK)
                        hdrlen += m->l3_len + m->l4_len;
                else
@@ -2296,6 +2452,17 @@ iavf_fill_data_desc(volatile struct iavf_tx_desc *desc,
 }
 
 
+static struct iavf_ipsec_crypto_pkt_metadata *
+iavf_ipsec_crypto_get_pkt_metadata(const struct iavf_tx_queue *txq,
+               struct rte_mbuf *m)
+{
+       if (m->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD)
+               return RTE_MBUF_DYNFIELD(m, txq->ipsec_crypto_pkt_md_offset,
+                               struct iavf_ipsec_crypto_pkt_metadata *);
+
+       return NULL;
+}
+
 /* TX function */
 uint16_t
 iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
@@ -2324,7 +2491,9 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 
        for (idx = 0; idx < nb_pkts; idx++) {
                volatile struct iavf_tx_desc *ddesc;
-               uint16_t nb_desc_ctx;
+               struct iavf_ipsec_crypto_pkt_metadata *ipsec_md;
+
+               uint16_t nb_desc_ctx, nb_desc_ipsec;
                uint16_t nb_desc_data, nb_desc_required;
                uint16_t tlen = 0, ipseclen = 0;
                uint64_t ddesc_template = 0;
@@ -2334,17 +2503,23 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 
                RTE_MBUF_PREFETCH_TO_FREE(txe->mbuf);
 
+               /**
+                * Get metadata for ipsec crypto from mbuf dynamic fields if
+                * security offload is specified.
+                */
+               ipsec_md = iavf_ipsec_crypto_get_pkt_metadata(txq, mb);
+
                nb_desc_data = mb->nb_segs;
-               nb_desc_ctx = !!(mb->ol_flags &
-                       (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG |
-                                       RTE_MBUF_F_TX_TUNNEL_MASK));
+               nb_desc_ctx =
+                       iavf_calc_context_desc(mb->ol_flags, txq->vlan_flag);
+               nb_desc_ipsec = !!(mb->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD);
 
                /**
                 * The number of descriptors that must be allocated for
                 * a packet equals to the number of the segments of that
                 * packet plus the context and ipsec descriptors if needed.
                 */
-               nb_desc_required = nb_desc_data + nb_desc_ctx;
+               nb_desc_required = nb_desc_data + nb_desc_ctx + nb_desc_ipsec;
 
                desc_idx_last = (uint16_t)(desc_idx + nb_desc_required - 1);
 
@@ -2374,7 +2549,8 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
                        }
                }
 
-               iavf_build_data_desc_cmd_offset_fields(&ddesc_template, mb);
+               iavf_build_data_desc_cmd_offset_fields(&ddesc_template, mb,
+                       txq->vlan_flag);
 
                        /* Setup TX context descriptor if required */
                if (nb_desc_ctx) {
@@ -2395,7 +2571,8 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
                                txe->mbuf = NULL;
                        }
 
-                       iavf_fill_context_desc(ctx_desc, mb, &tlen);
+                       iavf_fill_context_desc(ctx_desc, mb, ipsec_md, &tlen,
+                               txq->vlan_flag);
                        IAVF_DUMP_TX_DESC(txq, ctx_desc, desc_idx);
 
                        txe->last_id = desc_idx_last;
@@ -2403,7 +2580,27 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
                        txe = txn;
                        }
 
+               if (nb_desc_ipsec) {
+                       volatile struct iavf_tx_ipsec_desc *ipsec_desc =
+                               (volatile struct iavf_tx_ipsec_desc *)
+                                       &txr[desc_idx];
 
+                       txn = &txe_ring[txe->next_id];
+                       RTE_MBUF_PREFETCH_TO_FREE(txn->mbuf);
+
+                       if (txe->mbuf) {
+                               rte_pktmbuf_free_seg(txe->mbuf);
+                               txe->mbuf = NULL;
+               }
+
+                       iavf_fill_ipsec_desc(ipsec_desc, ipsec_md, &ipseclen);
+
+                       IAVF_DUMP_TX_DESC(txq, ipsec_desc, desc_idx);
+
+                       txe->last_id = desc_idx_last;
+                       desc_idx = txe->next_id;
+                       txe = txn;
+               }
 
                mb_seg = mb;