From: Jijiang Liu Date: Tue, 2 Dec 2014 15:06:07 +0000 (+0800) Subject: mbuf: replace inner fields by outer fields semantic X-Git-Tag: spdx-start~9990 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c14236f210d80815cdf3f317b3396493ab3156f9;p=dpdk.git mbuf: replace inner fields by outer fields semantic Replace the inner_l2_len and the inner_l3_len field with the outer_l2_len and outer_l3_len field, and rework csum forward engine and i40e PMD due to these changes. Signed-off-by: Jijiang Liu Acked-by: Konstantin Ananyev Acked-by: Olivier Matz --- diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c index 5f7dffc477..41711fd6d7 100644 --- a/app/test-pmd/csumonly.c +++ b/app/test-pmd/csumonly.c @@ -188,11 +188,12 @@ process_inner_cksums(void *l3_hdr, uint16_t ethertype, uint16_t l3_len, } else { if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_IP_CKSUM) ol_flags |= PKT_TX_IP_CKSUM; - else + else { ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr); + ol_flags |= PKT_TX_IPV4; + } } - ol_flags |= PKT_TX_IPV4; } else if (ethertype == _htons(ETHER_TYPE_IPv6)) ol_flags |= PKT_TX_IPV6; else @@ -261,22 +262,23 @@ process_outer_cksums(void *outer_l3_hdr, uint16_t outer_ethertype, if (outer_ethertype == _htons(ETHER_TYPE_IPv4)) { ipv4_hdr->hdr_checksum = 0; - if ((testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM) == 0) + if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM) + ol_flags |= PKT_TX_OUTER_IP_CKSUM; + else ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr); - } + } else if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM) + ol_flags |= PKT_TX_OUTER_IPV6; udp_hdr = (struct udp_hdr *)((char *)outer_l3_hdr + outer_l3_len); /* do not recalculate udp cksum if it was 0 */ if (udp_hdr->dgram_cksum != 0) { udp_hdr->dgram_cksum = 0; - if ((testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM) == 0) { - if (outer_ethertype == _htons(ETHER_TYPE_IPv4)) - udp_hdr->dgram_cksum = - rte_ipv4_udptcp_cksum(ipv4_hdr, udp_hdr); - else - udp_hdr->dgram_cksum = - rte_ipv6_udptcp_cksum(ipv6_hdr, udp_hdr); - } + if (outer_ethertype == _htons(ETHER_TYPE_IPv4)) + udp_hdr->dgram_cksum = + rte_ipv4_udptcp_cksum(ipv4_hdr, udp_hdr); + else + udp_hdr->dgram_cksum = + rte_ipv6_udptcp_cksum(ipv6_hdr, udp_hdr); } return ol_flags; @@ -302,8 +304,7 @@ process_outer_cksums(void *outer_l3_hdr, uint16_t outer_ethertype, * TESTPMD_TX_OFFLOAD_* in ports[tx_port].tx_ol_flags. They control * wether a checksum must be calculated in software or in hardware. The * IP, UDP, TCP and SCTP flags always concern the inner layer. The - * VxLAN flag concerns the outer IP and UDP layer (if packet is - * recognized as a vxlan packet). + * VxLAN flag concerns the outer IP (if packet is recognized as a vxlan packet). */ static void pkt_burst_checksum_forward(struct fwd_stream *fs) @@ -319,7 +320,7 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) uint16_t i; uint64_t ol_flags; uint16_t testpmd_ol_flags; - uint8_t l4_proto; + uint8_t l4_proto, l4_tun_len = 0; uint16_t ethertype = 0, outer_ethertype = 0; uint16_t l2_len = 0, l3_len = 0, l4_len = 0; uint16_t outer_l2_len = 0, outer_l3_len = 0; @@ -359,6 +360,7 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) ol_flags = 0; tunnel = 0; + l4_tun_len = 0; m = pkts_burst[i]; /* Update the L3/L4 checksum error packet statistics */ @@ -377,14 +379,16 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) if (l4_proto == IPPROTO_UDP) { udp_hdr = (struct udp_hdr *)((char *)l3_hdr + l3_len); + /* check udp destination port, 4789 is the default + * vxlan port (rfc7348) */ + if (udp_hdr->dst_port == _htons(4789)) { + l4_tun_len = ETHER_VXLAN_HLEN; + tunnel = 1; + /* currently, this flag is set by i40e only if the * packet is vxlan */ - if (((m->ol_flags & PKT_RX_TUNNEL_IPV4_HDR) || - (m->ol_flags & PKT_RX_TUNNEL_IPV6_HDR))) - tunnel = 1; - /* else check udp destination port, 4789 is the default - * vxlan port (rfc7348) */ - else if (udp_hdr->dst_port == _htons(4789)) + } else if (m->ol_flags & (PKT_RX_TUNNEL_IPV4_HDR | + PKT_RX_TUNNEL_IPV6_HDR)) tunnel = 1; if (tunnel == 1) { @@ -431,10 +435,10 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) if (tunnel == 1) { if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM) { - m->l2_len = outer_l2_len; - m->l3_len = outer_l3_len; - m->inner_l2_len = l2_len; - m->inner_l3_len = l3_len; + m->outer_l2_len = outer_l2_len; + m->outer_l3_len = outer_l3_len; + m->l2_len = l4_tun_len + l2_len; + m->l3_len = l3_len; } else { /* if we don't do vxlan cksum in hw, @@ -502,8 +506,8 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) m->l2_len, m->l3_len, m->l4_len); if ((tunnel == 1) && (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM)) - printf("tx: m->inner_l2_len=%d m->inner_l3_len=%d\n", - m->inner_l2_len, m->inner_l3_len); + printf("tx: m->outer_l2_len=%d m->outer_l3_len=%d\n", + m->outer_l2_len, m->outer_l3_len); if (tso_segsz != 0) printf("tx: m->tso_segsz=%d\n", m->tso_segsz); printf("tx: flags="); diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index 83e71af553..8f1e923104 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -279,8 +279,8 @@ struct rte_mbuf { uint64_t tso_segsz:16; /**< TCP TSO segment size */ /* fields for TX offloading of tunnels */ - uint64_t inner_l3_len:9; /**< inner L3 (IP) Hdr Length. */ - uint64_t inner_l2_len:7; /**< inner L2 (MAC) Hdr Length. */ + uint64_t outer_l3_len:9; /**< Outer L3 (IP) Hdr Length. */ + uint64_t outer_l2_len:7; /**< Outer L2 (MAC) Hdr Length. */ /* uint64_t unused:8; */ }; diff --git a/lib/librte_pmd_i40e/i40e_rxtx.c b/lib/librte_pmd_i40e/i40e_rxtx.c index e80a7b19a8..2beae3c8d1 100644 --- a/lib/librte_pmd_i40e/i40e_rxtx.c +++ b/lib/librte_pmd_i40e/i40e_rxtx.c @@ -462,41 +462,43 @@ i40e_txd_enable_checksum(uint64_t ol_flags, uint32_t *td_offset, uint8_t l2_len, uint16_t l3_len, - uint8_t inner_l2_len, - uint16_t inner_l3_len, + uint8_t outer_l2_len, + uint16_t outer_l3_len, uint32_t *cd_tunneling) { if (!l2_len) { PMD_DRV_LOG(DEBUG, "L2 length set to 0"); return; } - *td_offset |= (l2_len >> 1) << I40E_TX_DESC_LENGTH_MACLEN_SHIFT; if (!l3_len) { PMD_DRV_LOG(DEBUG, "L3 length set to 0"); return; } - /* VXLAN packet TX checksum offload */ + /* UDP tunneling packet TX checksum offload */ if (unlikely(ol_flags & PKT_TX_UDP_TUNNEL_PKT)) { - uint8_t l4tun_len; - l4tun_len = ETHER_VXLAN_HLEN + inner_l2_len; + *td_offset |= (outer_l2_len >> 1) + << I40E_TX_DESC_LENGTH_MACLEN_SHIFT; - if (ol_flags & PKT_TX_IPV4_CSUM) + if (ol_flags & PKT_TX_OUTER_IP_CKSUM) *cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV4; - else if (ol_flags & PKT_TX_IPV6) + else if (ol_flags & PKT_TX_OUTER_IPV4) + *cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV4_NO_CSUM; + else if (ol_flags & PKT_TX_OUTER_IPV6) *cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV6; /* Now set the ctx descriptor fields */ - *cd_tunneling |= (l3_len >> 2) << + *cd_tunneling |= (outer_l3_len >> 2) << I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT | I40E_TXD_CTX_UDP_TUNNELING | - (l4tun_len >> 1) << + (l2_len >> 1) << I40E_TXD_CTX_QW0_NATLEN_SHIFT; - l3_len = inner_l3_len; - } + } else + *td_offset |= (l2_len >> 1) + << I40E_TX_DESC_LENGTH_MACLEN_SHIFT; /* Enable L3 checksum offloads */ if (ol_flags & PKT_TX_IPV4_CSUM) { @@ -1190,8 +1192,8 @@ i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) uint64_t ol_flags; uint8_t l2_len; uint16_t l3_len; - uint8_t inner_l2_len; - uint16_t inner_l3_len; + uint8_t outer_l2_len; + uint16_t outer_l3_len; uint16_t nb_used; uint16_t nb_ctx; uint16_t tx_last; @@ -1219,9 +1221,9 @@ i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) ol_flags = tx_pkt->ol_flags; l2_len = tx_pkt->l2_len; - inner_l2_len = tx_pkt->inner_l2_len; l3_len = tx_pkt->l3_len; - inner_l3_len = tx_pkt->inner_l3_len; + outer_l2_len = tx_pkt->outer_l2_len; + outer_l3_len = tx_pkt->outer_l3_len; /* Calculate the number of context descriptors needed. */ nb_ctx = i40e_calc_context_desc(ol_flags); @@ -1271,8 +1273,8 @@ i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) /* Enable checksum offloading */ cd_tunneling_params = 0; i40e_txd_enable_checksum(ol_flags, &td_cmd, &td_offset, - l2_len, l3_len, inner_l2_len, - inner_l3_len, + l2_len, l3_len, outer_l2_len, + outer_l3_len, &cd_tunneling_params); if (unlikely(nb_ctx)) {