From: Jijiang Liu <jijiang.liu@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v3 8/8]app/testpmd:test VxLAN Tx checksum offload
Date: Fri, 12 Sep 2014 14:33:59 +0800 [thread overview]
Message-ID: <1410503639-10753-9-git-send-email-jijiang.liu@intel.com> (raw)
In-Reply-To: <1410503639-10753-1-git-send-email-jijiang.liu@intel.com>
Add test cases in testpmd to test VxLAN Tx Checksum offload, which include
- IPv4 tunnel and IPv6 tunnel
- outer L3, inner L3 and L4 checksum offload for Tx side.
Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Jing Chen <jing.d.chen@intel.com>
---
app/test-pmd/config.c | 6 +-
app/test-pmd/csumonly.c | 199 +++++++++++++++++++++++++++++++++++++++++++----
2 files changed, 188 insertions(+), 17 deletions(-)
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 606e34a..fe77b89 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1719,9 +1719,9 @@ tx_cksum_set(portid_t port_id, uint8_t cksum_mask)
uint16_t tx_ol_flags;
if (port_id_is_invalid(port_id))
return;
- /* Clear last 4 bits and then set L3/4 checksum mask again */
- tx_ol_flags = (uint16_t) (ports[port_id].tx_ol_flags & 0xFFF0);
- ports[port_id].tx_ol_flags = (uint16_t) ((cksum_mask & 0xf) | tx_ol_flags);
+ /* Clear last 8 bits and then set L3/4 checksum mask again */
+ tx_ol_flags = (uint16_t) (ports[port_id].tx_ol_flags & 0xFF00);
+ ports[port_id].tx_ol_flags = (uint16_t) ((cksum_mask & 0xff) | tx_ol_flags);
}
void
diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c
index e5a1f52..3e4a773 100644
--- a/app/test-pmd/csumonly.c
+++ b/app/test-pmd/csumonly.c
@@ -196,7 +196,6 @@ get_ipv6_udptcp_checksum(struct ipv6_hdr *ipv6_hdr, uint16_t *l4_hdr)
return (uint16_t)cksum;
}
-
/*
* Forwarding of packets. Change the checksum field with HW or SW methods
* The HW/SW method selection depends on the ol_flags on every packet
@@ -209,10 +208,16 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
struct rte_mbuf *mb;
struct ether_hdr *eth_hdr;
struct ipv4_hdr *ipv4_hdr;
+ struct ether_hdr *inner_eth_hdr;
+ struct ipv4_hdr *inner_ipv4_hdr = NULL;
struct ipv6_hdr *ipv6_hdr;
+ struct ipv6_hdr *inner_ipv6_hdr = NULL;
struct udp_hdr *udp_hdr;
+ struct udp_hdr *inner_udp_hdr;
struct tcp_hdr *tcp_hdr;
+ struct tcp_hdr *inner_tcp_hdr;
struct sctp_hdr *sctp_hdr;
+ struct sctp_hdr *inner_sctp_hdr;
uint16_t nb_rx;
uint16_t nb_tx;
@@ -221,12 +226,18 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
uint16_t pkt_ol_flags;
uint16_t tx_ol_flags;
uint16_t l4_proto;
+ uint16_t inner_l4_proto = 0;
uint16_t eth_type;
uint8_t l2_len;
uint8_t l3_len;
+ uint8_t inner_l2_len;
+ uint8_t inner_l3_len = 0;
uint32_t rx_bad_ip_csum;
uint32_t rx_bad_l4_csum;
+ uint8_t ipv4_tunnel;
+ uint8_t ipv6_tunnel;
+ uint16_t ptype;
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
uint64_t start_tsc;
@@ -261,8 +272,12 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
mb = pkts_burst[i];
l2_len = sizeof(struct ether_hdr);
pkt_ol_flags = mb->ol_flags;
+ ptype = mb->reserved;
ol_flags = (uint16_t) (pkt_ol_flags & (~PKT_TX_L4_MASK));
+ ipv4_tunnel = IS_ETH_IPV4_TUNNEL(ptype);
+ ipv6_tunnel = IS_ETH_IPV6_TUNNEL(ptype);
+
eth_hdr = (struct ether_hdr *) mb->pkt.data;
eth_type = rte_be_to_cpu_16(eth_hdr->ether_type);
if (eth_type == ETHER_TYPE_VLAN) {
@@ -295,7 +310,7 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
* + ipv4 or ipv6
* + udp or tcp or sctp or others
*/
- if (pkt_ol_flags & PKT_RX_IPV4_HDR) {
+ if (pkt_ol_flags & (PKT_RX_IPV4_HDR | PKT_RX_IPV4_HDR_EXT)) {
/* Do not support ipv4 option field */
l3_len = sizeof(struct ipv4_hdr) ;
@@ -325,17 +340,95 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
if (tx_ol_flags & 0x2) {
/* HW Offload */
ol_flags |= PKT_TX_UDP_CKSUM;
- /* Pseudo header sum need be set properly */
- udp_hdr->dgram_cksum = get_ipv4_psd_sum(ipv4_hdr);
+ if (ipv4_tunnel)
+ udp_hdr->dgram_cksum = 0;
+ else
+ /* Pseudo header sum need be set properly */
+ udp_hdr->dgram_cksum =
+ get_ipv4_psd_sum(ipv4_hdr);
}
else {
/* SW Implementation, clear checksum field first */
udp_hdr->dgram_cksum = 0;
udp_hdr->dgram_cksum = get_ipv4_udptcp_checksum(ipv4_hdr,
- (uint16_t*)udp_hdr);
+ (uint16_t *)udp_hdr);
}
- }
- else if (l4_proto == IPPROTO_TCP){
+
+ if (ipv4_tunnel) {
+
+ uint16_t len;
+
+ /* Check if inner L3/L4 checkum flag is set */
+ if (tx_ol_flags & 0xF0)
+ ol_flags |= PKT_TX_VXLAN_CKSUM;
+
+ inner_l2_len = sizeof(struct ether_hdr);
+ inner_eth_hdr = (struct ether_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + l2_len + l3_len
+ + ETHER_VXLAN_HLEN);
+
+ eth_type = rte_be_to_cpu_16(inner_eth_hdr->ether_type);
+ if (eth_type == ETHER_TYPE_VLAN) {
+ ol_flags |= PKT_TX_IVLAN_PKT;
+ inner_l2_len += sizeof(struct vlan_hdr);
+ eth_type = rte_be_to_cpu_16(*(uint16_t *)
+ ((uintptr_t)ð_hdr->ether_type +
+ sizeof(struct vlan_hdr)));
+ }
+
+ len = l2_len + l3_len + ETHER_VXLAN_HLEN + inner_l2_len;
+ if (eth_type == ETHER_TYPE_IPv4) {
+ inner_l3_len = sizeof(struct ipv4_hdr);
+ inner_ipv4_hdr = (struct ipv4_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len);
+ inner_l4_proto = inner_ipv4_hdr->next_proto_id;
+
+ if (tx_ol_flags & 0x10) {
+
+ /* Do not delete, this is required by HW*/
+ inner_ipv4_hdr->hdr_checksum = 0;
+ ol_flags |= PKT_TX_IPV4_CSUM;
+ }
+
+ } else if (eth_type == ETHER_TYPE_IPv6) {
+ inner_l3_len = sizeof(struct ipv6_hdr);
+ inner_ipv6_hdr = (struct ipv6_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len);
+ inner_l4_proto = inner_ipv6_hdr->proto;
+ }
+ if ((inner_l4_proto == IPPROTO_UDP) && (tx_ol_flags & 0x20)) {
+
+ /* HW Offload */
+ ol_flags |= PKT_TX_UDP_CKSUM;
+ inner_udp_hdr = (struct udp_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len + inner_l3_len);
+ if (eth_type == ETHER_TYPE_IPv4)
+ inner_udp_hdr->dgram_cksum = get_ipv4_psd_sum(inner_ipv4_hdr);
+ else if (eth_type == ETHER_TYPE_IPv6)
+ inner_udp_hdr->dgram_cksum = get_ipv6_psd_sum(inner_ipv6_hdr);
+
+ } else if ((inner_l4_proto == IPPROTO_TCP) && (tx_ol_flags & 0x40)) {
+
+ /* HW Offload */
+ ol_flags |= PKT_TX_TCP_CKSUM;
+ inner_tcp_hdr = (struct tcp_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len + inner_l3_len);
+ if (eth_type == ETHER_TYPE_IPv4)
+ inner_tcp_hdr->cksum = get_ipv4_psd_sum(inner_ipv4_hdr);
+ else if (eth_type == ETHER_TYPE_IPv6)
+ inner_tcp_hdr->cksum = get_ipv6_psd_sum(inner_ipv6_hdr);
+ } else if ((inner_l4_proto == IPPROTO_SCTP) && (tx_ol_flags & 0x80)) {
+ /* HW Offload */
+ ol_flags |= PKT_TX_SCTP_CKSUM;
+ inner_sctp_hdr = (struct sctp_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len + inner_l3_len);
+ inner_sctp_hdr->cksum = 0;
+ }
+
+ mb->reserved = inner_l3_len;
+ }
+
+ } else if (l4_proto == IPPROTO_TCP) {
tcp_hdr = (struct tcp_hdr*) (rte_pktmbuf_mtod(mb,
unsigned char *) + l2_len + l3_len);
if (tx_ol_flags & 0x4) {
@@ -347,8 +440,7 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
tcp_hdr->cksum = get_ipv4_udptcp_checksum(ipv4_hdr,
(uint16_t*)tcp_hdr);
}
- }
- else if (l4_proto == IPPROTO_SCTP) {
+ } else if (l4_proto == IPPROTO_SCTP) {
sctp_hdr = (struct sctp_hdr*) (rte_pktmbuf_mtod(mb,
unsigned char *) + l2_len + l3_len);
@@ -367,9 +459,7 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
}
}
/* End of L4 Handling*/
- }
- else if (pkt_ol_flags & PKT_RX_IPV6_HDR) {
-
+ } else if (pkt_ol_flags & (PKT_RX_IPV6_HDR | PKT_RX_IPV6_HDR_EXT)) {
ipv6_hdr = (struct ipv6_hdr *) (rte_pktmbuf_mtod(mb,
unsigned char *) + l2_len);
l3_len = sizeof(struct ipv6_hdr) ;
@@ -382,15 +472,96 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
if (tx_ol_flags & 0x2) {
/* HW Offload */
ol_flags |= PKT_TX_UDP_CKSUM;
- udp_hdr->dgram_cksum = get_ipv6_psd_sum(ipv6_hdr);
+ if (ipv6_tunnel)
+ udp_hdr->dgram_cksum = 0;
+ else
+ udp_hdr->dgram_cksum =
+ get_ipv6_psd_sum(ipv6_hdr);
}
else {
/* SW Implementation */
/* checksum field need be clear first */
udp_hdr->dgram_cksum = 0;
udp_hdr->dgram_cksum = get_ipv6_udptcp_checksum(ipv6_hdr,
- (uint16_t*)udp_hdr);
+ (uint16_t *)udp_hdr);
}
+
+ if (ipv6_tunnel) {
+
+ uint16_t len;
+
+ /* Check if inner L3/L4 checksum flag is set */
+ if (tx_ol_flags & 0xF0)
+ ol_flags |= PKT_TX_VXLAN_CKSUM;
+
+ inner_l2_len = sizeof(struct ether_hdr);
+ inner_eth_hdr = (struct ether_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + l2_len + l3_len + ETHER_VXLAN_HLEN);
+ eth_type = rte_be_to_cpu_16(inner_eth_hdr->ether_type);
+
+ if (eth_type == ETHER_TYPE_VLAN) {
+ ol_flags |= PKT_TX_IVLAN_PKT;
+ inner_l2_len += sizeof(struct vlan_hdr);
+ eth_type = rte_be_to_cpu_16(*(uint16_t *)
+ ((uintptr_t)ð_hdr->ether_type +
+ sizeof(struct vlan_hdr)));
+ }
+
+ len = l2_len + l3_len + ETHER_VXLAN_HLEN + inner_l2_len;
+
+ if (eth_type == ETHER_TYPE_IPv4) {
+ inner_l3_len = sizeof(struct ipv4_hdr);
+ inner_ipv4_hdr = (struct ipv4_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len);
+ inner_l4_proto = inner_ipv4_hdr->next_proto_id;
+
+ /* HW offload */
+ if (tx_ol_flags & 0x10) {
+
+ /* Do not delete, this is required by HW*/
+ inner_ipv4_hdr->hdr_checksum = 0;
+ ol_flags |= PKT_TX_IPV4_CSUM;
+ }
+ } else if (eth_type == ETHER_TYPE_IPv6) {
+ inner_l3_len = sizeof(struct ipv6_hdr);
+ inner_ipv6_hdr = (struct ipv6_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len);
+ inner_l4_proto = inner_ipv6_hdr->proto;
+ }
+
+ if ((inner_l4_proto == IPPROTO_UDP) && (tx_ol_flags & 0x20)) {
+ inner_udp_hdr = (struct udp_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len + inner_l3_len);
+ /* HW offload */
+ ol_flags |= PKT_TX_UDP_CKSUM;
+ inner_udp_hdr->dgram_cksum = 0;
+ if (eth_type == ETHER_TYPE_IPv4)
+ inner_udp_hdr->dgram_cksum = get_ipv4_psd_sum(inner_ipv4_hdr);
+ else if (eth_type == ETHER_TYPE_IPv6)
+ inner_udp_hdr->dgram_cksum = get_ipv6_psd_sum(inner_ipv6_hdr);
+ } else if ((inner_l4_proto == IPPROTO_TCP) && (tx_ol_flags & 0x40)) {
+ /* HW offload */
+ ol_flags |= PKT_TX_TCP_CKSUM;
+ inner_tcp_hdr = (struct tcp_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len + inner_l3_len);
+
+ if (eth_type == ETHER_TYPE_IPv4)
+ inner_tcp_hdr->cksum = get_ipv4_psd_sum(inner_ipv4_hdr);
+ else if (eth_type == ETHER_TYPE_IPv6)
+ inner_tcp_hdr->cksum = get_ipv6_psd_sum(inner_ipv6_hdr);
+
+ } else if ((inner_l4_proto == IPPROTO_SCTP) && (tx_ol_flags & 0x80)) {
+ /* HW offload */
+ ol_flags |= PKT_TX_SCTP_CKSUM;
+ inner_sctp_hdr = (struct sctp_hdr *) (rte_pktmbuf_mtod(mb,
+ unsigned char *) + len + inner_l3_len);
+ inner_sctp_hdr->cksum = 0;
+ }
+
+ /* pass the inner l3 length to driver */
+ mb->reserved = inner_l3_len;
+ }
+
}
else if (l4_proto == IPPROTO_TCP) {
tcp_hdr = (struct tcp_hdr*) (rte_pktmbuf_mtod(mb,
--
1.7.7.6
prev parent reply other threads:[~2014-09-12 6:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-12 6:33 [dpdk-dev] [PATCH v3 0/8]Support VxLAN on Fortville Jijiang Liu
2014-09-12 6:33 ` [dpdk-dev] [PATCH v3 1/8]i40e:support VxLAN packet identification in librte_ether Jijiang Liu
2014-09-12 6:33 ` [dpdk-dev] [PATCH v3 2/8]i40e:support VxLAN packet identification in librte_pmd_i40e Jijiang Liu
2014-09-12 6:33 ` [dpdk-dev] [PATCH v3 3/8]app/test-pmd:test VxLAN packet identification Jijiang Liu
2014-09-12 6:33 ` [dpdk-dev] [PATCH v3 4/8]librte_ether:add a common filter API Jijiang Liu
2014-09-12 6:33 ` [dpdk-dev] [PATCH v3 5/8]i40e:implement API of VxLAN packet filter in librte_pmd_i40e Jijiang Liu
2014-09-12 6:33 ` [dpdk-dev] [PATCH v3 6/8]app/testpmd:test VxLAN packet filter API Jijiang Liu
2014-09-12 6:33 ` [dpdk-dev] [PATCH v3 7/8]i40e:support VxLAN Tx checksum offload Jijiang Liu
2014-09-12 6:33 ` Jijiang Liu [this message]
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