From: Jiawen Wu Date: Fri, 18 Dec 2020 09:37:01 +0000 (+0800) Subject: net/txgbe: add security offload in Rx and Tx X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=d51a133cc7b88b10439fcab9c47f0e1801be68d2;p=dpdk.git net/txgbe: add security offload in Rx and Tx Add security offload in Rx and Tx process. Signed-off-by: Jiawen Wu --- diff --git a/drivers/net/txgbe/txgbe_ipsec.c b/drivers/net/txgbe/txgbe_ipsec.c index ebf23493ec..6e6006f005 100644 --- a/drivers/net/txgbe/txgbe_ipsec.c +++ b/drivers/net/txgbe/txgbe_ipsec.c @@ -16,6 +16,55 @@ (a).ipv6[2] == (b).ipv6[2] && \ (a).ipv6[3] == (b).ipv6[3]) +static void +txgbe_crypto_clear_ipsec_tables(struct rte_eth_dev *dev) +{ + struct txgbe_hw *hw = TXGBE_DEV_HW(dev); + struct txgbe_ipsec *priv = TXGBE_DEV_IPSEC(dev); + int i = 0; + + /* clear Rx IP table*/ + for (i = 0; i < IPSEC_MAX_RX_IP_COUNT; i++) { + uint16_t index = i << 3; + uint32_t reg_val = TXGBE_IPSRXIDX_WRITE | + TXGBE_IPSRXIDX_TB_IP | index; + wr32(hw, TXGBE_IPSRXADDR(0), 0); + wr32(hw, TXGBE_IPSRXADDR(1), 0); + wr32(hw, TXGBE_IPSRXADDR(2), 0); + wr32(hw, TXGBE_IPSRXADDR(3), 0); + wr32w(hw, TXGBE_IPSRXIDX, reg_val, TXGBE_IPSRXIDX_WRITE, 1000); + } + + /* clear Rx SPI and Rx/Tx SA tables*/ + for (i = 0; i < IPSEC_MAX_SA_COUNT; i++) { + uint32_t index = i << 3; + uint32_t reg_val = TXGBE_IPSRXIDX_WRITE | + TXGBE_IPSRXIDX_TB_SPI | index; + wr32(hw, TXGBE_IPSRXSPI, 0); + wr32(hw, TXGBE_IPSRXADDRIDX, 0); + wr32w(hw, TXGBE_IPSRXIDX, reg_val, TXGBE_IPSRXIDX_WRITE, 1000); + reg_val = TXGBE_IPSRXIDX_WRITE | TXGBE_IPSRXIDX_TB_KEY | index; + wr32(hw, TXGBE_IPSRXKEY(0), 0); + wr32(hw, TXGBE_IPSRXKEY(1), 0); + wr32(hw, TXGBE_IPSRXKEY(2), 0); + wr32(hw, TXGBE_IPSRXKEY(3), 0); + wr32(hw, TXGBE_IPSRXSALT, 0); + wr32(hw, TXGBE_IPSRXMODE, 0); + wr32w(hw, TXGBE_IPSRXIDX, reg_val, TXGBE_IPSRXIDX_WRITE, 1000); + reg_val = TXGBE_IPSTXIDX_WRITE | index; + wr32(hw, TXGBE_IPSTXKEY(0), 0); + wr32(hw, TXGBE_IPSTXKEY(1), 0); + wr32(hw, TXGBE_IPSTXKEY(2), 0); + wr32(hw, TXGBE_IPSTXKEY(3), 0); + wr32(hw, TXGBE_IPSTXSALT, 0); + wr32w(hw, TXGBE_IPSTXIDX, reg_val, TXGBE_IPSTXIDX_WRITE, 1000); + } + + memset(priv->rx_ip_tbl, 0, sizeof(priv->rx_ip_tbl)); + memset(priv->rx_sa_tbl, 0, sizeof(priv->rx_sa_tbl)); + memset(priv->tx_sa_tbl, 0, sizeof(priv->tx_sa_tbl)); +} + static int txgbe_crypto_add_sa(struct txgbe_crypto_session *ic_session) { @@ -549,6 +598,63 @@ txgbe_crypto_capabilities_get(void *device __rte_unused) return txgbe_security_capabilities; } +int +txgbe_crypto_enable_ipsec(struct rte_eth_dev *dev) +{ + struct txgbe_hw *hw = TXGBE_DEV_HW(dev); + uint32_t reg; + uint64_t rx_offloads; + uint64_t tx_offloads; + + rx_offloads = dev->data->dev_conf.rxmode.offloads; + tx_offloads = dev->data->dev_conf.txmode.offloads; + + /* sanity checks */ + if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO) { + PMD_DRV_LOG(ERR, "RSC and IPsec not supported"); + return -1; + } + if (rx_offloads & DEV_RX_OFFLOAD_KEEP_CRC) { + PMD_DRV_LOG(ERR, "HW CRC strip needs to be enabled for IPsec"); + return -1; + } + + /* Set TXGBE_SECTXBUFFAF to 0x14 as required in the datasheet*/ + wr32(hw, TXGBE_SECTXBUFAF, 0x14); + + /* IFG needs to be set to 3 when we are using security. Otherwise a Tx + * hang will occur with heavy traffic. + */ + reg = rd32(hw, TXGBE_SECTXIFG); + reg = (reg & ~TXGBE_SECTXIFG_MIN_MASK) | TXGBE_SECTXIFG_MIN(0x3); + wr32(hw, TXGBE_SECTXIFG, reg); + + reg = rd32(hw, TXGBE_SECRXCTL); + reg |= TXGBE_SECRXCTL_CRCSTRIP; + wr32(hw, TXGBE_SECRXCTL, reg); + + if (rx_offloads & DEV_RX_OFFLOAD_SECURITY) { + wr32m(hw, TXGBE_SECRXCTL, TXGBE_SECRXCTL_ODSA, 0); + reg = rd32m(hw, TXGBE_SECRXCTL, TXGBE_SECRXCTL_ODSA); + if (reg != 0) { + PMD_DRV_LOG(ERR, "Error enabling Rx Crypto"); + return -1; + } + } + if (tx_offloads & DEV_TX_OFFLOAD_SECURITY) { + wr32(hw, TXGBE_SECTXCTL, TXGBE_SECTXCTL_STFWD); + reg = rd32(hw, TXGBE_SECTXCTL); + if (reg != TXGBE_SECTXCTL_STFWD) { + PMD_DRV_LOG(ERR, "Error enabling Rx Crypto"); + return -1; + } + } + + txgbe_crypto_clear_ipsec_tables(dev); + + return 0; +} + static struct rte_security_ops txgbe_security_ops = { .session_create = txgbe_crypto_create_session, .session_get_size = txgbe_crypto_session_get_size, diff --git a/drivers/net/txgbe/txgbe_ipsec.h b/drivers/net/txgbe/txgbe_ipsec.h index 9b88defbf8..58e18552d1 100644 --- a/drivers/net/txgbe/txgbe_ipsec.h +++ b/drivers/net/txgbe/txgbe_ipsec.h @@ -89,4 +89,6 @@ struct txgbe_ipsec { struct txgbe_crypto_tx_sa_table tx_sa_tbl[IPSEC_MAX_SA_COUNT]; }; +int txgbe_crypto_enable_ipsec(struct rte_eth_dev *dev); + #endif /*TXGBE_IPSEC_H_*/ diff --git a/drivers/net/txgbe/txgbe_rxtx.c b/drivers/net/txgbe/txgbe_rxtx.c index 2096606561..3ad92248c6 100644 --- a/drivers/net/txgbe/txgbe_rxtx.c +++ b/drivers/net/txgbe/txgbe_rxtx.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -57,6 +58,9 @@ static const u64 TXGBE_TX_OFFLOAD_MASK = (PKT_TX_IP_CKSUM | PKT_TX_TCP_SEG | PKT_TX_TUNNEL_MASK | PKT_TX_OUTER_IP_CKSUM | +#ifdef RTE_LIB_SECURITY + PKT_TX_SEC_OFFLOAD | +#endif TXGBE_TX_IEEE1588_TMST); #define TXGBE_TX_OFFLOAD_NOTSUP_MASK \ @@ -311,7 +315,8 @@ txgbe_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts, static inline void txgbe_set_xmit_ctx(struct txgbe_tx_queue *txq, volatile struct txgbe_tx_ctx_desc *ctx_txd, - uint64_t ol_flags, union txgbe_tx_offload tx_offload) + uint64_t ol_flags, union txgbe_tx_offload tx_offload, + __rte_unused uint64_t *mdata) { union txgbe_tx_offload tx_offload_mask; uint32_t type_tucmd_mlhl; @@ -405,6 +410,19 @@ txgbe_set_xmit_ctx(struct txgbe_tx_queue *txq, vlan_macip_lens |= TXGBE_TXD_VLAN(tx_offload.vlan_tci); } +#ifdef RTE_LIB_SECURITY + if (ol_flags & PKT_TX_SEC_OFFLOAD) { + union txgbe_crypto_tx_desc_md *md = + (union txgbe_crypto_tx_desc_md *)mdata; + tunnel_seed |= TXGBE_TXD_IPSEC_SAIDX(md->sa_idx); + type_tucmd_mlhl |= md->enc ? + (TXGBE_TXD_IPSEC_ESP | TXGBE_TXD_IPSEC_ESPENC) : 0; + type_tucmd_mlhl |= TXGBE_TXD_IPSEC_ESPLEN(md->pad_len); + tx_offload_mask.sa_idx |= ~0; + tx_offload_mask.sec_pad_len |= ~0; + } +#endif + txq->ctx_cache[ctx_idx].flags = ol_flags; txq->ctx_cache[ctx_idx].tx_offload.data[0] = tx_offload_mask.data[0] & tx_offload.data[0]; @@ -701,6 +719,9 @@ txgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint32_t ctx = 0; uint32_t new_ctx; union txgbe_tx_offload tx_offload; +#ifdef RTE_LIB_SECURITY + uint8_t use_ipsec; +#endif tx_offload.data[0] = 0; tx_offload.data[1] = 0; @@ -727,6 +748,9 @@ txgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, * are needed for offload functionality. */ ol_flags = tx_pkt->ol_flags; +#ifdef RTE_LIB_SECURITY + use_ipsec = txq->using_ipsec && (ol_flags & PKT_TX_SEC_OFFLOAD); +#endif /* If hardware offload required */ tx_ol_req = ol_flags & TXGBE_TX_OFFLOAD_MASK; @@ -742,6 +766,16 @@ txgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, tx_offload.outer_l3_len = tx_pkt->outer_l3_len; tx_offload.outer_tun_len = txgbe_get_tun_len(tx_pkt); +#ifdef RTE_LIB_SECURITY + if (use_ipsec) { + union txgbe_crypto_tx_desc_md *ipsec_mdata = + (union txgbe_crypto_tx_desc_md *) + rte_security_dynfield(tx_pkt); + tx_offload.sa_idx = ipsec_mdata->sa_idx; + tx_offload.sec_pad_len = ipsec_mdata->pad_len; + } +#endif + /* If new context need be built or reuse the exist ctx*/ ctx = what_ctx_update(txq, tx_ol_req, tx_offload); /* Only allocate context descriptor if required */ @@ -895,7 +929,8 @@ txgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, } txgbe_set_xmit_ctx(txq, ctx_txd, tx_ol_req, - tx_offload); + tx_offload, + rte_security_dynfield(tx_pkt)); txe->last_id = tx_last; tx_id = txe->next_id; @@ -914,6 +949,10 @@ txgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, } olinfo_status |= TXGBE_TXD_PAYLEN(pkt_len); +#ifdef RTE_LIB_SECURITY + if (use_ipsec) + olinfo_status |= TXGBE_TXD_IPSEC; +#endif m_seg = tx_pkt; do { @@ -1098,6 +1137,14 @@ rx_desc_error_to_pkt_flags(uint32_t rx_status) pkt_flags |= PKT_RX_EIP_CKSUM_BAD; } +#ifdef RTE_LIB_SECURITY + if (rx_status & TXGBE_RXD_STAT_SECP) { + pkt_flags |= PKT_RX_SEC_OFFLOAD; + if (rx_status & TXGBE_RXD_ERR_SECERR) + pkt_flags |= PKT_RX_SEC_OFFLOAD_FAILED; + } +#endif + return pkt_flags; } @@ -1926,6 +1973,11 @@ txgbe_get_rx_port_offloads(struct rte_eth_dev *dev) offloads |= DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM; +#ifdef RTE_LIB_SECURITY + if (dev->security_ctx) + offloads |= DEV_RX_OFFLOAD_SECURITY; +#endif + return offloads; } @@ -2027,6 +2079,9 @@ txgbe_dev_tx_done_cleanup(void *tx_queue, uint32_t free_cnt) { struct txgbe_tx_queue *txq = (struct txgbe_tx_queue *)tx_queue; if (txq->offloads == 0 && +#ifdef RTE_LIB_SECURITY + !(txq->using_ipsec) && +#endif txq->tx_free_thresh >= RTE_PMD_TXGBE_TX_MAX_BURST) return txgbe_tx_done_cleanup_simple(txq, free_cnt); @@ -2110,6 +2165,9 @@ txgbe_set_tx_function(struct rte_eth_dev *dev, struct txgbe_tx_queue *txq) { /* Use a simple Tx queue (no offloads, no multi segs) if possible */ if (txq->offloads == 0 && +#ifdef RTE_LIB_SECURITY + !(txq->using_ipsec) && +#endif txq->tx_free_thresh >= RTE_PMD_TXGBE_TX_MAX_BURST) { PMD_INIT_LOG(DEBUG, "Using simple tx code path"); dev->tx_pkt_burst = txgbe_xmit_pkts_simple; @@ -2164,6 +2222,10 @@ txgbe_get_tx_port_offloads(struct rte_eth_dev *dev) tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM; +#ifdef RTE_LIB_SECURITY + if (dev->security_ctx) + tx_offload_capa |= DEV_TX_OFFLOAD_SECURITY; +#endif return tx_offload_capa; } @@ -2262,6 +2324,10 @@ txgbe_dev_tx_queue_setup(struct rte_eth_dev *dev, txq->offloads = offloads; txq->ops = &def_txq_ops; txq->tx_deferred_start = tx_conf->tx_deferred_start; +#ifdef RTE_LIB_SECURITY + txq->using_ipsec = !!(dev->data->dev_conf.txmode.offloads & + DEV_TX_OFFLOAD_SECURITY); +#endif /* Modification to set tail pointer for virtual function * if vf is detected. @@ -4062,6 +4128,7 @@ txgbe_set_rsc(struct rte_eth_dev *dev) void __rte_cold txgbe_set_rx_function(struct rte_eth_dev *dev) { + uint16_t i; struct txgbe_adapter *adapter = TXGBE_DEV_ADAPTER(dev); /* @@ -4122,6 +4189,15 @@ txgbe_set_rx_function(struct rte_eth_dev *dev) dev->rx_pkt_burst = txgbe_recv_pkts; } + +#ifdef RTE_LIB_SECURITY + for (i = 0; i < dev->data->nb_rx_queues; i++) { + struct txgbe_rx_queue *rxq = dev->data->rx_queues[i]; + + rxq->using_ipsec = !!(dev->data->dev_conf.rxmode.offloads & + DEV_RX_OFFLOAD_SECURITY); + } +#endif } /* @@ -4392,6 +4468,19 @@ txgbe_dev_rxtx_start(struct rte_eth_dev *dev) dev->data->dev_conf.lpbk_mode) txgbe_setup_loopback_link_raptor(hw); +#ifdef RTE_LIB_SECURITY + if ((dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_SECURITY) || + (dev->data->dev_conf.txmode.offloads & DEV_TX_OFFLOAD_SECURITY)) { + ret = txgbe_crypto_enable_ipsec(dev); + if (ret != 0) { + PMD_DRV_LOG(ERR, + "txgbe_crypto_enable_ipsec fails with %d.", + ret); + return ret; + } + } +#endif + return 0; } diff --git a/drivers/net/txgbe/txgbe_rxtx.h b/drivers/net/txgbe/txgbe_rxtx.h index 6e0e86ce5d..203bdeb882 100644 --- a/drivers/net/txgbe/txgbe_rxtx.h +++ b/drivers/net/txgbe/txgbe_rxtx.h @@ -293,6 +293,10 @@ struct txgbe_rx_queue { uint16_t rx_nb_avail; /**< nr of staged pkts ready to ret to app */ uint16_t rx_next_avail; /**< idx of next staged pkt to ret to app */ uint16_t rx_free_trigger; /**< triggers rx buffer allocation */ +#ifdef RTE_LIB_SECURITY + uint8_t using_ipsec; + /**< indicates that IPsec RX feature is in use */ +#endif uint16_t rx_free_thresh; /**< max free RX desc to hold. */ uint16_t queue_id; /**< RX queue index. */ uint16_t reg_idx; /**< RX queue register index. */ @@ -336,6 +340,11 @@ union txgbe_tx_offload { uint64_t outer_tun_len:8; /**< Outer TUN (Tunnel) Hdr Length. */ uint64_t outer_l2_len:8; /**< Outer L2 (MAC) Hdr Length. */ uint64_t outer_l3_len:16; /**< Outer L3 (IP) Hdr Length. */ +#ifdef RTE_LIB_SECURITY + /* inline ipsec related*/ + uint64_t sa_idx:8; /**< TX SA database entry index */ + uint64_t sec_pad_len:4; /**< padding length */ +#endif }; }; @@ -388,6 +397,10 @@ struct txgbe_tx_queue { struct txgbe_ctx_info ctx_cache[TXGBE_CTX_NUM]; const struct txgbe_txq_ops *ops; /**< txq ops */ uint8_t tx_deferred_start; /**< not in global dev start. */ +#ifdef RTE_LIB_SECURITY + uint8_t using_ipsec; + /**< indicates that IPsec TX feature is in use */ +#endif }; struct txgbe_txq_ops {