* [dpdk-dev] [PATCH v1 1/8] gro: support TCP/IPv6
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
@ 2020-12-21 3:50 ` yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 2/8] gro: support IPv4 VXLAN TCP/IPv6 yang_y_yi
` (7 subsequent siblings)
8 siblings, 0 replies; 13+ messages in thread
From: yang_y_yi @ 2020-12-21 3:50 UTC (permalink / raw)
To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi
From: Yi Yang <yangyi01@inspur.com>
TCP/IPv6 GRO can help improve TCP/IPv6 performance.
With this enabled in DPDK, OVS DPDK can leverage it
to improve VM-to-VM TCP/IPv6 performance, it will merge
small adjacent TCP/IPv6 segments to a big TCP/IPv6 segment
immediate after they are received from a physical NIC. It
is very helpful in OVS DPDK VLAN use case.
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
.../prog_guide/generic_receive_offload_lib.rst | 10 +-
doc/guides/rel_notes/release_21_02.rst | 5 +
lib/librte_gro/gro_tcp6.c | 368 +++++++++++++++++++++
lib/librte_gro/gro_tcp6.h | 314 ++++++++++++++++++
lib/librte_gro/meson.build | 2 +-
lib/librte_gro/rte_gro.c | 74 ++++-
lib/librte_gro/rte_gro.h | 3 +
7 files changed, 762 insertions(+), 14 deletions(-)
create mode 100644 lib/librte_gro/gro_tcp6.c
create mode 100644 lib/librte_gro/gro_tcp6.h
diff --git a/doc/guides/prog_guide/generic_receive_offload_lib.rst b/doc/guides/prog_guide/generic_receive_offload_lib.rst
index 98a5d29..fee856e 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -30,9 +30,9 @@ assumes the packets are complete (i.e., MF==0 && frag_off==0), when IP
fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
6864 to process the IPv4 ID field.
-Currently, the GRO library provides GRO supports for TCP/IPv4 and UDP/IPv4
-packets as well as VxLAN packets which contain an outer IPv4 header and an
-inner TCP/IPv4 or UDP/IPv4 packet.
+Currently, the GRO library provides GRO supports for TCP/IPv4, UDP/IPv4,
+and TCP/IPv6 packets as well as VxLAN packets which contain an outer IPv4
+header and an inner TCP/IPv4 or UDP/IPv4 packet.
Two Sets of API
---------------
@@ -83,8 +83,8 @@ Reassembly Algorithm
The reassembly algorithm is used for reassembling packets. In the GRO
library, different GRO types can use different algorithms. In this
-section, we will introduce an algorithm, which is used by TCP/IPv4 GRO
-and VxLAN GRO.
+section, we will introduce an algorithm, which is used by TCP/IPv4 GRO,
+TCP/IPv6 GRO and VxLAN GRO.
Challenges
~~~~~~~~~~
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index 638f981..1a1aeff 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -55,6 +55,11 @@ New Features
Also, make sure to start the actual text at the margin.
=======================================================
+* **Added TCP/IPv6 GRO support for non-VXLAN packets.**
+
+ Added TCP/IPv6 GRO support for non-VXLAN packets, this enabled TCP/IPv6
+ GRO support for VLAN use case.
+
Removed Items
-------------
diff --git a/lib/librte_gro/gro_tcp6.c b/lib/librte_gro/gro_tcp6.c
new file mode 100644
index 0000000..4a4df34
--- /dev/null
+++ b/lib/librte_gro/gro_tcp6.c
@@ -0,0 +1,368 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+
+#include "gro_tcp6.h"
+
+void *
+gro_tcp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow)
+{
+ struct gro_tcp6_tbl *tbl;
+ size_t size;
+ uint32_t entries_num, i;
+
+ entries_num = max_flow_num * max_item_per_flow;
+ entries_num = RTE_MIN(entries_num, GRO_TCP6_TBL_MAX_ITEM_NUM);
+
+ if (entries_num == 0)
+ return NULL;
+
+ tbl = rte_zmalloc_socket(__func__,
+ sizeof(struct gro_tcp6_tbl),
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl == NULL)
+ return NULL;
+
+ size = sizeof(struct gro_tcp6_item) * entries_num;
+ tbl->items = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->items == NULL) {
+ rte_free(tbl);
+ return NULL;
+ }
+ tbl->max_item_num = entries_num;
+
+ size = sizeof(struct gro_tcp6_flow) * entries_num;
+ tbl->flows = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->flows == NULL) {
+ rte_free(tbl->items);
+ rte_free(tbl);
+ return NULL;
+ }
+ /* INVALID_ARRAY_INDEX indicates an empty flow */
+ for (i = 0; i < entries_num; i++)
+ tbl->flows[i].start_index = INVALID_ARRAY_INDEX;
+ tbl->max_flow_num = entries_num;
+
+ return tbl;
+}
+
+void
+gro_tcp6_tbl_destroy(void *tbl)
+{
+ struct gro_tcp6_tbl *tcp_tbl = tbl;
+
+ if (tcp_tbl) {
+ rte_free(tcp_tbl->items);
+ rte_free(tcp_tbl->flows);
+ }
+ rte_free(tcp_tbl);
+}
+
+static inline uint32_t
+find_an_empty_item(struct gro_tcp6_tbl *tbl)
+{
+ uint32_t i;
+ uint32_t max_item_num = tbl->max_item_num;
+
+ for (i = 0; i < max_item_num; i++)
+ if (tbl->items[i].firstseg == NULL)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+find_an_empty_flow(struct gro_tcp6_tbl *tbl)
+{
+ uint32_t i;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++)
+ if (tbl->flows[i].start_index == INVALID_ARRAY_INDEX)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+insert_new_item(struct gro_tcp6_tbl *tbl,
+ struct rte_mbuf *pkt,
+ uint64_t start_time,
+ uint32_t prev_idx,
+ uint32_t sent_seq)
+{
+ uint32_t item_idx;
+
+ item_idx = find_an_empty_item(tbl);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return INVALID_ARRAY_INDEX;
+
+ tbl->items[item_idx].firstseg = pkt;
+ tbl->items[item_idx].lastseg = rte_pktmbuf_lastseg(pkt);
+ tbl->items[item_idx].start_time = start_time;
+ tbl->items[item_idx].next_pkt_idx = INVALID_ARRAY_INDEX;
+ tbl->items[item_idx].sent_seq = sent_seq;
+ tbl->items[item_idx].nb_merged = 1;
+ tbl->item_num++;
+
+ /* if the previous packet exists, chain them together. */
+ if (prev_idx != INVALID_ARRAY_INDEX) {
+ tbl->items[item_idx].next_pkt_idx =
+ tbl->items[prev_idx].next_pkt_idx;
+ tbl->items[prev_idx].next_pkt_idx = item_idx;
+ }
+
+ return item_idx;
+}
+
+static inline uint32_t
+delete_item(struct gro_tcp6_tbl *tbl, uint32_t item_idx,
+ uint32_t prev_item_idx)
+{
+ uint32_t next_idx = tbl->items[item_idx].next_pkt_idx;
+
+ /* NULL indicates an empty item */
+ tbl->items[item_idx].firstseg = NULL;
+ tbl->item_num--;
+ if (prev_item_idx != INVALID_ARRAY_INDEX)
+ tbl->items[prev_item_idx].next_pkt_idx = next_idx;
+
+ return next_idx;
+}
+
+static inline uint32_t
+insert_new_flow(struct gro_tcp6_tbl *tbl,
+ struct tcp6_flow_key *src,
+ uint32_t item_idx)
+{
+ struct tcp6_flow_key *dst;
+ uint32_t flow_idx;
+
+ flow_idx = find_an_empty_flow(tbl);
+ if (unlikely(flow_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ dst = &(tbl->flows[flow_idx].key);
+
+ rte_ether_addr_copy(&(src->eth_saddr), &(dst->eth_saddr));
+ rte_ether_addr_copy(&(src->eth_daddr), &(dst->eth_daddr));
+ gro_ipv6_addr_copy(src->ip_saddr, dst->ip_saddr);
+ gro_ipv6_addr_copy(src->ip_daddr, dst->ip_daddr);
+ dst->recv_ack = src->recv_ack;
+ dst->src_port = src->src_port;
+ dst->dst_port = src->dst_port;
+
+ tbl->flows[flow_idx].start_index = item_idx;
+ tbl->flow_num++;
+
+ return flow_idx;
+}
+
+/*
+ * update the packet length for the flushed packet.
+ */
+static inline void
+update_header(struct gro_tcp6_item *item)
+{
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_mbuf *pkt = item->firstseg;
+
+ ipv6_hdr = (struct rte_ipv6_hdr *)(rte_pktmbuf_mtod(pkt, char *) +
+ pkt->l2_len);
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(pkt->pkt_len -
+ pkt->l2_len - pkt->l3_len);
+}
+
+int32_t
+gro_tcp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_tcp6_tbl *tbl,
+ uint64_t start_time)
+{
+ struct rte_ether_hdr *eth_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_tcp_hdr *tcp_hdr;
+ uint32_t sent_seq;
+ int32_t tcp_dl;
+ uint16_t hdr_len;
+
+ struct tcp6_flow_key key;
+ uint32_t cur_idx, prev_idx, item_idx;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ int cmp;
+ uint8_t find;
+
+ /*
+ * Don't process the packet whose TCP header length is greater
+ * than 60 bytes or less than 20 bytes.
+ */
+ if (unlikely(INVALID_TCP_HDRLEN(pkt->l4_len)))
+ return -1;
+
+ eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)eth_hdr + pkt->l2_len);
+ tcp_hdr = (struct rte_tcp_hdr *)((char *)ipv6_hdr + pkt->l3_len);
+ hdr_len = pkt->l2_len + pkt->l3_len + pkt->l4_len;
+
+ /*
+ * Don't process the packet which has FIN, SYN, RST, PSH, URG, ECE
+ * or CWR set.
+ */
+ if (tcp_hdr->tcp_flags != RTE_TCP_ACK_FLAG)
+ return -1;
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ if (pkt->pkt_len <= hdr_len)
+ return -1;
+ tcp_dl = pkt->pkt_len - hdr_len;
+
+ /*
+ * Save IPv6 ID for the packet whose DF bit is 0. For the packet
+ * whose DF bit is 1, IPv6 ID is ignored.
+ */
+ sent_seq = rte_be_to_cpu_32(tcp_hdr->sent_seq);
+
+ rte_ether_addr_copy(&(eth_hdr->s_addr), &(key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->d_addr), &(key.eth_daddr));
+ gro_ipv6_addr_copy(ipv6_hdr->src_addr, key.ip_saddr);
+ gro_ipv6_addr_copy(ipv6_hdr->dst_addr, key.ip_daddr);
+ key.src_port = tcp_hdr->src_port;
+ key.dst_port = tcp_hdr->dst_port;
+ key.recv_ack = tcp_hdr->recv_ack;
+
+ /* Search for a matched flow. */
+ max_flow_num = tbl->max_flow_num;
+ remaining_flow_num = tbl->flow_num;
+ find = 0;
+ for (i = 0; i < max_flow_num && remaining_flow_num; i++) {
+ if (tbl->flows[i].start_index != INVALID_ARRAY_INDEX) {
+ if (is_same_tcp6_flow(tbl->flows[i].key, key)) {
+ find = 1;
+ break;
+ }
+ remaining_flow_num--;
+ }
+ }
+
+ /*
+ * Fail to find a matched flow. Insert a new flow and store the
+ * packet into the flow.
+ */
+ if (find == 0) {
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, sent_seq);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ if (insert_new_flow(tbl, &key, item_idx) ==
+ INVALID_ARRAY_INDEX) {
+ /*
+ * Fail to insert a new flow, so delete the
+ * stored packet.
+ */
+ delete_item(tbl, item_idx, INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ /*
+ * Check all packets in the flow and try to find a neighbor for
+ * the input packet.
+ */
+ cur_idx = tbl->flows[i].start_index;
+ prev_idx = cur_idx;
+ do {
+ cmp = check_seq_option_v6(&(tbl->items[cur_idx]), tcp_hdr,
+ sent_seq, pkt->l4_len, tcp_dl, 0);
+ if (cmp) {
+ if (merge_two_tcp6_packets(&(tbl->items[cur_idx]),
+ pkt, cmp, sent_seq, 0))
+ return 1;
+ /*
+ * Fail to merge the two packets, as the packet
+ * length is greater than the max value. Store
+ * the packet into the flow.
+ */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ sent_seq) ==
+ INVALID_ARRAY_INDEX)
+ return -1;
+ return 0;
+ }
+ prev_idx = cur_idx;
+ cur_idx = tbl->items[cur_idx].next_pkt_idx;
+ } while (cur_idx != INVALID_ARRAY_INDEX);
+
+ /* Fail to find a neighbor, so store the packet into the flow. */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx, sent_seq
+ ) == INVALID_ARRAY_INDEX)
+ return -1;
+
+ return 0;
+}
+
+uint16_t
+gro_tcp6_tbl_timeout_flush(struct gro_tcp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out)
+{
+ uint16_t k = 0;
+ uint32_t i, j;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++) {
+ if (unlikely(tbl->flow_num == 0))
+ return k;
+
+ j = tbl->flows[i].start_index;
+ while (j != INVALID_ARRAY_INDEX) {
+ if (tbl->items[j].start_time <= flush_timestamp) {
+ out[k++] = tbl->items[j].firstseg;
+ if (tbl->items[j].nb_merged > 1)
+ update_header(&(tbl->items[j]));
+ /*
+ * Delete the packet and get the next
+ * packet in the flow.
+ */
+ j = delete_item(tbl, j, INVALID_ARRAY_INDEX);
+ tbl->flows[i].start_index = j;
+ if (j == INVALID_ARRAY_INDEX)
+ tbl->flow_num--;
+
+ if (unlikely(k == nb_out))
+ return k;
+ } else
+ /*
+ * The left packets in this flow won't be
+ * timeout. Go to check other flows.
+ */
+ break;
+ }
+ }
+ return k;
+}
+
+uint32_t
+gro_tcp6_tbl_pkt_count(void *tbl)
+{
+ struct gro_tcp6_tbl *gro_tbl = tbl;
+
+ if (gro_tbl)
+ return gro_tbl->item_num;
+
+ return 0;
+}
diff --git a/lib/librte_gro/gro_tcp6.h b/lib/librte_gro/gro_tcp6.h
new file mode 100644
index 0000000..a9dec7b
--- /dev/null
+++ b/lib/librte_gro/gro_tcp6.h
@@ -0,0 +1,314 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#ifndef _GRO_TCP6_H_
+#define _GRO_TCP6_H_
+
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_vxlan.h>
+
+#define INVALID_ARRAY_INDEX 0xffffffffUL
+#define GRO_TCP6_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/*
+ * The max length of a IPv6 packet, which includes the length of the L3
+ * header, the L4 header and the data payload.
+ */
+#define MAX_IPV6_PKT_LENGTH UINT16_MAX
+
+/* The maximum TCP header length */
+#define MAX_TCP_HLEN 60
+#define INVALID_TCP_HDRLEN(len) \
+ (((len) < sizeof(struct rte_tcp_hdr)) || ((len) > MAX_TCP_HLEN))
+
+/* Header fields representing a TCP/IPv6 flow */
+struct tcp6_flow_key {
+ struct rte_ether_addr eth_saddr;
+ struct rte_ether_addr eth_daddr;
+ uint8_t ip_saddr[16]; /**< IPv6 address of source host. */
+ uint8_t ip_daddr[16]; /**< IPv6 address of destination host(s). */
+
+ uint32_t recv_ack;
+ uint16_t src_port;
+ uint16_t dst_port;
+};
+
+struct gro_tcp6_flow {
+ struct tcp6_flow_key key;
+ /*
+ * The index of the first packet in the flow.
+ * INVALID_ARRAY_INDEX indicates an empty flow.
+ */
+ uint32_t start_index;
+};
+
+struct gro_tcp6_item {
+ /*
+ * The first MBUF segment of the packet. If the value
+ * is NULL, it means the item is empty.
+ */
+ struct rte_mbuf *firstseg;
+ /* The last MBUF segment of the packet */
+ struct rte_mbuf *lastseg;
+ /*
+ * The time when the first packet is inserted into the table.
+ * This value won't be updated, even if the packet is merged
+ * with other packets.
+ */
+ uint64_t start_time;
+ /*
+ * next_pkt_idx is used to chain the packets that
+ * are in the same flow but can't be merged together
+ * (e.g. caused by packet reordering).
+ */
+ uint32_t next_pkt_idx;
+ /* TCP sequence number of the packet */
+ uint32_t sent_seq;
+ /* the number of merged packets */
+ uint16_t nb_merged;
+};
+
+/*
+ * TCP/IPv6 reassembly table structure.
+ */
+struct gro_tcp6_tbl {
+ /* item array */
+ struct gro_tcp6_item *items;
+ /* flow array */
+ struct gro_tcp6_flow *flows;
+ /* current item number */
+ uint32_t item_num;
+ /* current flow num */
+ uint32_t flow_num;
+ /* item array size */
+ uint32_t max_item_num;
+ /* flow array size */
+ uint32_t max_flow_num;
+};
+
+/**
+ * This function creates a TCP/IPv6 reassembly table.
+ *
+ * @param socket_id
+ * Socket index for allocating the TCP/IPv6 reassemble table
+ * @param max_flow_num
+ * The maximum number of flows in the TCP/IPv6 GRO table
+ * @param max_item_per_flow
+ * The maximum number of packets per flow
+ *
+ * @return
+ * - Return the table pointer on success.
+ * - Return NULL on failure.
+ */
+void *gro_tcp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow);
+
+/**
+ * This function destroys a TCP/IPv6 reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the TCP/IPv6 reassembly table.
+ */
+void gro_tcp6_tbl_destroy(void *tbl);
+
+/**
+ * This function merges a TCP/IPv6 packet. It does not process the packet,
+ * which has SYN, FIN, RST, PSH, CWR, ECE or URG set, or does not have
+ * payload.
+ *
+ * This function does not check if the packet has correct checksums and
+ * does not re-calculate checksums for the merged packet. Additionally,
+ * it assumes the packets are complete (i.e., MF==0 && frag_off==0),
+ * when IP fragmentation is possible (i.e., DF==0). It returns the
+ * packet, if the packet has invalid parameters (e.g. SYN bit is set)
+ * or there is no available space in the table.
+ *
+ * @param pkt
+ * Packet to reassemble
+ * @param tbl
+ * Pointer pointing to the TCP/IPv6 reassembly table
+ * @start_time
+ * The time when the packet is inserted into the table
+ *
+ * @return
+ * - Return a positive value if the packet is merged.
+ * - Return zero if the packet isn't merged but stored in the table.
+ * - Return a negative value for invalid parameters or no available
+ * space in the table.
+ */
+int32_t gro_tcp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_tcp6_tbl *tbl,
+ uint64_t start_time);
+
+/**
+ * This function flushes timeout packets in a TCP/IPv6 reassembly table,
+ * and without updating checksums.
+ *
+ * @param tbl
+ * TCP/IPv6 reassembly table pointer
+ * @param flush_timestamp
+ * Flush packets which are inserted into the table before or at the
+ * flush_timestamp.
+ * @param out
+ * Pointer array used to keep flushed packets
+ * @param nb_out
+ * The element number in 'out'. It also determines the maximum number of
+ * packets that can be flushed finally.
+ *
+ * @return
+ * The number of flushed packets
+ */
+uint16_t gro_tcp6_tbl_timeout_flush(struct gro_tcp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out);
+
+/**
+ * This function returns the number of the packets in a TCP/IPv6
+ * reassembly table.
+ *
+ * @param tbl
+ * TCP/IPv6 reassembly table pointer
+ *
+ * @return
+ * The number of packets in the table
+ */
+uint32_t gro_tcp6_tbl_pkt_count(void *tbl);
+
+/*
+ * Check if two IPv6 address is same.
+ */
+static inline int rte_is_same_ipv6_addr(const uint8_t *ipv6_a1,
+ const uint8_t *ipv6_a2)
+{
+ const uint64_t *w1 = (const uint64_t *)ipv6_a1;
+ const uint64_t *w2 = (const uint64_t *)ipv6_a2;
+
+ return ((w1[0] ^ w2[0]) | (w1[1] ^ w2[1])) == 0;
+}
+
+/* Copy IPv6 addr */
+static inline void gro_ipv6_addr_copy(const uint8_t *ipv6_from,
+ uint8_t *ipv6_to)
+{
+ const uint64_t *from_words = (const uint64_t *)ipv6_from;
+ uint64_t *to_words = (uint64_t *)ipv6_to;
+
+ to_words[0] = from_words[0];
+ to_words[1] = from_words[1];
+}
+
+/*
+ * Check if two TCP/IPv6 packets belong to the same flow.
+ */
+static inline int
+is_same_tcp6_flow(struct tcp6_flow_key k1, struct tcp6_flow_key k2)
+{
+ return (rte_is_same_ether_addr(&k1.eth_saddr, &k2.eth_saddr) &&
+ rte_is_same_ether_addr(&k1.eth_daddr, &k2.eth_daddr) &&
+ rte_is_same_ipv6_addr(k1.ip_saddr, k2.ip_saddr) &&
+ rte_is_same_ipv6_addr(k1.ip_daddr, k2.ip_daddr) &&
+ (k1.recv_ack == k2.recv_ack) &&
+ (k1.src_port == k2.src_port) &&
+ (k1.dst_port == k2.dst_port));
+}
+
+/*
+ * Merge two TCP/IPv6, packets without updating checksums.
+ * If cmp is larger than 0, append the new packet to the
+ * original packet. Otherwise, pre-pend the new packet to
+ * the original packet.
+ */
+static inline int
+merge_two_tcp6_packets(struct gro_tcp6_item *item,
+ struct rte_mbuf *pkt,
+ int cmp,
+ uint32_t sent_seq,
+ uint16_t l2_offset)
+{
+ struct rte_mbuf *pkt_head, *pkt_tail, *lastseg;
+ uint16_t hdr_len, l2_len;
+
+ if (cmp > 0) {
+ pkt_head = item->firstseg;
+ pkt_tail = pkt;
+ } else {
+ pkt_head = pkt;
+ pkt_tail = item->firstseg;
+ }
+
+ /* check if the IPv6 packet length is greater than the max value */
+ hdr_len = l2_offset + pkt_head->l2_len + pkt_head->l3_len +
+ pkt_head->l4_len;
+ l2_len = l2_offset > 0 ? pkt_head->outer_l2_len : pkt_head->l2_len;
+ if (unlikely(pkt_head->pkt_len - l2_len + pkt_tail->pkt_len -
+ hdr_len > MAX_IPV6_PKT_LENGTH))
+ return 0;
+
+ /* remove the packet header for the tail packet */
+ rte_pktmbuf_adj(pkt_tail, hdr_len);
+
+ /* chain two packets together */
+ if (cmp > 0) {
+ item->lastseg->next = pkt;
+ item->lastseg = rte_pktmbuf_lastseg(pkt);
+ } else {
+ lastseg = rte_pktmbuf_lastseg(pkt);
+ lastseg->next = item->firstseg;
+ item->firstseg = pkt;
+ /* update sent_seq to the smaller value */
+ item->sent_seq = sent_seq;
+ }
+ item->nb_merged++;
+
+ /* update MBUF metadata for the merged packet */
+ pkt_head->nb_segs += pkt_tail->nb_segs;
+ pkt_head->pkt_len += pkt_tail->pkt_len;
+
+ return 1;
+}
+
+/*
+ * Check if two TCP/IPv6 packets are neighbors.
+ */
+static inline int
+check_seq_option_v6(struct gro_tcp6_item *item,
+ struct rte_tcp_hdr *tcph,
+ uint32_t sent_seq,
+ uint16_t tcp_hl,
+ uint16_t tcp_dl,
+ uint16_t l2_offset)
+{
+ struct rte_mbuf *pkt_orig = item->firstseg;
+ struct rte_ipv6_hdr *iph_orig;
+ struct rte_tcp_hdr *tcph_orig;
+ uint16_t len, tcp_hl_orig;
+
+ iph_orig = (struct rte_ipv6_hdr *)(rte_pktmbuf_mtod(pkt_orig, char *) +
+ l2_offset + pkt_orig->l2_len);
+ tcph_orig = (struct rte_tcp_hdr *)((char *)iph_orig + pkt_orig->l3_len);
+ tcp_hl_orig = pkt_orig->l4_len;
+
+ /* Check if TCP option fields equal */
+ len = RTE_MAX(tcp_hl, tcp_hl_orig) - sizeof(struct rte_tcp_hdr);
+ if ((tcp_hl != tcp_hl_orig) || ((len > 0) &&
+ (memcmp(tcph + 1, tcph_orig + 1,
+ len) != 0)))
+ return 0;
+
+ /* check if the two packets are neighbors */
+ len = pkt_orig->pkt_len - l2_offset - pkt_orig->l2_len -
+ pkt_orig->l3_len - tcp_hl_orig;
+ if (sent_seq == item->sent_seq + len)
+ /* append the new packet */
+ return 1;
+ else if (sent_seq + tcp_dl == item->sent_seq)
+ /* pre-pend the new packet */
+ return -1;
+
+ return 0;
+}
+#endif
diff --git a/lib/librte_gro/meson.build b/lib/librte_gro/meson.build
index ea8b45c..6143dd0 100644
--- a/lib/librte_gro/meson.build
+++ b/lib/librte_gro/meson.build
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
-sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c')
+sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c')
headers = files('rte_gro.h')
deps += ['ethdev']
diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index 8ca4da6..86958d5 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -9,6 +9,7 @@
#include "rte_gro.h"
#include "gro_tcp4.h"
+#include "gro_tcp6.h"
#include "gro_udp4.h"
#include "gro_vxlan_tcp4.h"
#include "gro_vxlan_udp4.h"
@@ -21,15 +22,16 @@
static gro_tbl_create_fn tbl_create_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_create, gro_vxlan_tcp4_tbl_create,
- gro_udp4_tbl_create, gro_vxlan_udp4_tbl_create, NULL};
+ gro_udp4_tbl_create, gro_vxlan_udp4_tbl_create,
+ gro_tcp6_tbl_create, NULL};
static gro_tbl_destroy_fn tbl_destroy_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_destroy, gro_vxlan_tcp4_tbl_destroy,
gro_udp4_tbl_destroy, gro_vxlan_udp4_tbl_destroy,
- NULL};
+ gro_tcp6_tbl_destroy, NULL};
static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_pkt_count, gro_vxlan_tcp4_tbl_pkt_count,
gro_udp4_tbl_pkt_count, gro_vxlan_udp4_tbl_pkt_count,
- NULL};
+ gro_tcp6_tbl_pkt_count, NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
@@ -65,6 +67,10 @@
((ptype & RTE_PTYPE_INNER_L3_MASK) == \
RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
+#define IS_IPV6_TCP_PKT(ptype) (RTE_ETH_IS_IPV6_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
+ (RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
+
/*
* GRO context structure. It keeps the table structures, which are
* used to merge packets, for different GRO types. Before using
@@ -165,17 +171,24 @@ struct gro_ctx {
struct gro_vxlan_udp4_item vxlan_udp_items[RTE_GRO_MAX_BURST_ITEM_NUM]
= {{{0}} };
+ /* allocate a reassembly table for TCP/IPv6 GRO */
+ struct gro_tcp6_tbl tcp6_tbl;
+ struct gro_tcp6_flow tcp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_tcp6_item tcp6_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{0} };
+
+
struct rte_mbuf *unprocess_pkts[nb_pkts];
uint32_t item_num;
int32_t ret;
uint16_t i, unprocess_num = 0, nb_after_gro = nb_pkts;
uint8_t do_tcp4_gro = 0, do_vxlan_tcp_gro = 0, do_udp4_gro = 0,
- do_vxlan_udp_gro = 0;
+ do_vxlan_udp_gro = 0, do_tcp6_gro = 0;
if (unlikely((param->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
RTE_GRO_IPV4_VXLAN_UDP_IPV4 |
- RTE_GRO_UDP_IPV4)) == 0))
+ RTE_GRO_UDP_IPV4 |
+ RTE_GRO_TCP_IPV6)) == 0))
return nb_pkts;
/* Get the maximum number of packets */
@@ -235,6 +248,20 @@ struct gro_ctx {
do_udp4_gro = 1;
}
+ if (param->gro_types & RTE_GRO_TCP_IPV6) {
+ for (i = 0; i < item_num; i++)
+ tcp6_flows[i].start_index = INVALID_ARRAY_INDEX;
+
+ tcp6_tbl.flows = tcp6_flows;
+ tcp6_tbl.items = tcp6_items;
+ tcp6_tbl.flow_num = 0;
+ tcp6_tbl.item_num = 0;
+ tcp6_tbl.max_flow_num = item_num;
+ tcp6_tbl.max_item_num = item_num;
+ do_tcp6_gro = 1;
+ }
+
+
for (i = 0; i < nb_pkts; i++) {
/*
@@ -275,6 +302,14 @@ struct gro_ctx {
nb_after_gro--;
else if (ret < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_TCP_PKT(pkts[i]->packet_type) &&
+ do_tcp6_gro) {
+ ret = gro_tcp6_reassemble(pkts[i], &tcp6_tbl, 0);
+ if (ret > 0)
+ /* merge successfully */
+ nb_after_gro--;
+ else if (ret < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -303,6 +338,12 @@ struct gro_ctx {
i += gro_udp4_tbl_timeout_flush(&udp_tbl, 0,
&pkts[i], nb_pkts - i);
}
+
+ if (do_tcp6_gro) {
+ i += gro_tcp6_tbl_timeout_flush(&tcp6_tbl, 0,
+ &pkts[i], nb_pkts - i);
+ }
+
/* Copy unprocessed packets */
if (unprocess_num > 0) {
memcpy(&pkts[i], unprocess_pkts,
@@ -322,21 +363,24 @@ struct gro_ctx {
{
struct rte_mbuf *unprocess_pkts[nb_pkts];
struct gro_ctx *gro_ctx = ctx;
- void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl;
+ void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl;
uint64_t current_time;
uint16_t i, unprocess_num = 0;
- uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro;
+ uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro,
+ do_tcp6_gro;
if (unlikely((gro_ctx->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
RTE_GRO_IPV4_VXLAN_UDP_IPV4 |
- RTE_GRO_UDP_IPV4)) == 0))
+ RTE_GRO_UDP_IPV4 |
+ RTE_GRO_TCP_IPV6)) == 0))
return nb_pkts;
tcp_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV4_INDEX];
vxlan_tcp_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_TCP_IPV4_INDEX];
udp_tbl = gro_ctx->tbls[RTE_GRO_UDP_IPV4_INDEX];
vxlan_udp_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_UDP_IPV4_INDEX];
+ tcp6_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV6_INDEX];
do_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV4) ==
RTE_GRO_TCP_IPV4;
@@ -346,6 +390,8 @@ struct gro_ctx {
RTE_GRO_UDP_IPV4;
do_vxlan_udp_gro = (gro_ctx->gro_types & RTE_GRO_IPV4_VXLAN_UDP_IPV4) ==
RTE_GRO_IPV4_VXLAN_UDP_IPV4;
+ do_tcp6_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV6) ==
+ RTE_GRO_TCP_IPV6;
current_time = rte_rdtsc();
@@ -370,6 +416,11 @@ struct gro_ctx {
if (gro_udp4_reassemble(pkts[i], udp_tbl,
current_time) < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_TCP_PKT(pkts[i]->packet_type) &&
+ do_tcp6_gro) {
+ if (gro_tcp6_reassemble(pkts[i], tcp6_tbl,
+ current_time) < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -425,6 +476,13 @@ struct gro_ctx {
gro_ctx->tbls[RTE_GRO_UDP_IPV4_INDEX],
flush_timestamp,
&out[num], left_nb_out);
+ left_nb_out = max_nb_out - num;
+ }
+
+ if ((gro_types & RTE_GRO_TCP_IPV6) && left_nb_out > 0) {
+ num += gro_tcp6_tbl_timeout_flush(gro_ctx->tbls[
+ RTE_GRO_TCP_IPV6_INDEX],
+ flush_timestamp, &out[num], left_nb_out);
}
return num;
diff --git a/lib/librte_gro/rte_gro.h b/lib/librte_gro/rte_gro.h
index 9f9ed49..39b57e8 100644
--- a/lib/librte_gro/rte_gro.h
+++ b/lib/librte_gro/rte_gro.h
@@ -38,6 +38,9 @@
#define RTE_GRO_IPV4_VXLAN_UDP_IPV4_INDEX 3
#define RTE_GRO_IPV4_VXLAN_UDP_IPV4 (1ULL << RTE_GRO_IPV4_VXLAN_UDP_IPV4_INDEX)
/**< VxLAN UDP/IPv4 GRO flag. */
+#define RTE_GRO_TCP_IPV6_INDEX 4
+#define RTE_GRO_TCP_IPV6 (1ULL << RTE_GRO_TCP_IPV6_INDEX)
+/**< TCP/IPv6 GRO flag */
/**
* Structure used to create GRO context objects or used to pass
--
1.8.3.1
^ permalink raw reply [flat|nested] 13+ messages in thread* [dpdk-dev] [PATCH v1 2/8] gro: support IPv4 VXLAN TCP/IPv6
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 1/8] gro: support TCP/IPv6 yang_y_yi
@ 2020-12-21 3:50 ` yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 3/8] gro: support IPv6 VXLAN TCP/IPv4 yang_y_yi
` (6 subsequent siblings)
8 siblings, 0 replies; 13+ messages in thread
From: yang_y_yi @ 2020-12-21 3:50 UTC (permalink / raw)
To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi
From: Yi Yang <yangyi01@inspur.com>
IPv4 VXLAN TCP/IPv6 GRO can help improve TCP/IPv6 performance
in IPv4 VXLAN use case.
With this enabled in DPDK, OVS DPDK can leverage it to improve
VM-to-VM TCP/IPv6 performance, it will merge small adjacent
IPv4 VXLAN TCP/IPv6 packets to a big IPv4 VXLAN TCP/IPv6 packet
immediate after they are received from a physical NIC. It is
very helpful in OVS DPDK IPv4 VXLAN use case.
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
.../prog_guide/generic_receive_offload_lib.rst | 6 +-
doc/guides/rel_notes/release_21_02.rst | 5 +
lib/librte_gro/gro_vxlan_tcp6.c | 496 +++++++++++++++++++++
lib/librte_gro/gro_vxlan_tcp6.h | 156 +++++++
lib/librte_gro/meson.build | 2 +-
lib/librte_gro/rte_gro.c | 81 +++-
lib/librte_gro/rte_gro.h | 3 +
7 files changed, 736 insertions(+), 13 deletions(-)
create mode 100644 lib/librte_gro/gro_vxlan_tcp6.c
create mode 100644 lib/librte_gro/gro_vxlan_tcp6.h
diff --git a/doc/guides/prog_guide/generic_receive_offload_lib.rst b/doc/guides/prog_guide/generic_receive_offload_lib.rst
index fee856e..ecb5909 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -32,7 +32,7 @@ fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
Currently, the GRO library provides GRO supports for TCP/IPv4, UDP/IPv4,
and TCP/IPv6 packets as well as VxLAN packets which contain an outer IPv4
-header and an inner TCP/IPv4 or UDP/IPv4 packet.
+header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6 packet.
Two Sets of API
---------------
@@ -161,8 +161,8 @@ Header fields deciding if two packets are neighbors include:
- IPv4 ID. The IPv4 ID fields of the packets, whose DF bit is 0, should
be increased by 1.
-VxLAN GRO
----------
+IPv4 VxLAN TCP/IPv4 GRO
+-----------------------
The table structure used by VxLAN GRO, which is in charge of processing
VxLAN packets with an outer IPv4 header and inner TCP/IPv4 packet, is
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index 1a1aeff..035d774 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -60,6 +60,11 @@ New Features
Added TCP/IPv6 GRO support for non-VXLAN packets, this enabled TCP/IPv6
GRO support for VLAN use case.
+* **Added TCP/IPv6 GRO support for IPv4 VXLAN packets.**
+
+ Added TCP/IPv6 GRO support for IPv4 VXLAN packets, this enabled TCP/IPv6
+ GRO support for IPv4 VXLAN use case.
+
Removed Items
-------------
diff --git a/lib/librte_gro/gro_vxlan_tcp6.c b/lib/librte_gro/gro_vxlan_tcp6.c
new file mode 100644
index 0000000..d49a2dd
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan_tcp6.c
@@ -0,0 +1,496 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_udp.h>
+
+#include "gro_vxlan_tcp6.h"
+
+void *
+gro_vxlan_tcp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow)
+{
+ struct gro_vxlan_tcp6_tbl *tbl;
+ size_t size;
+ uint32_t entries_num, i;
+
+ entries_num = max_flow_num * max_item_per_flow;
+ entries_num = RTE_MIN(entries_num, GRO_VXLAN_TCP6_TBL_MAX_ITEM_NUM);
+
+ if (entries_num == 0)
+ return NULL;
+
+ tbl = rte_zmalloc_socket(__func__,
+ sizeof(struct gro_vxlan_tcp6_tbl),
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl == NULL)
+ return NULL;
+
+ size = sizeof(struct gro_vxlan_tcp6_item) * entries_num;
+ tbl->items = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->items == NULL) {
+ rte_free(tbl);
+ return NULL;
+ }
+ tbl->max_item_num = entries_num;
+
+ size = sizeof(struct gro_vxlan_tcp6_flow) * entries_num;
+ tbl->flows = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->flows == NULL) {
+ rte_free(tbl->items);
+ rte_free(tbl);
+ return NULL;
+ }
+
+ for (i = 0; i < entries_num; i++)
+ tbl->flows[i].start_index = INVALID_ARRAY_INDEX;
+ tbl->max_flow_num = entries_num;
+
+ return tbl;
+}
+
+void
+gro_vxlan_tcp6_tbl_destroy(void *tbl)
+{
+ struct gro_vxlan_tcp6_tbl *vxlan_tbl = tbl;
+
+ if (vxlan_tbl) {
+ rte_free(vxlan_tbl->items);
+ rte_free(vxlan_tbl->flows);
+ }
+ rte_free(vxlan_tbl);
+}
+
+static inline uint32_t
+find_an_empty_item(struct gro_vxlan_tcp6_tbl *tbl)
+{
+ uint32_t max_item_num = tbl->max_item_num, i;
+
+ for (i = 0; i < max_item_num; i++)
+ if (tbl->items[i].inner_item.firstseg == NULL)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+find_an_empty_flow(struct gro_vxlan_tcp6_tbl *tbl)
+{
+ uint32_t max_flow_num = tbl->max_flow_num, i;
+
+ for (i = 0; i < max_flow_num; i++)
+ if (tbl->flows[i].start_index == INVALID_ARRAY_INDEX)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+insert_new_item(struct gro_vxlan_tcp6_tbl *tbl,
+ struct rte_mbuf *pkt,
+ uint64_t start_time,
+ uint32_t prev_idx,
+ uint32_t sent_seq,
+ uint16_t outer_ip_id,
+ uint8_t outer_is_atomic)
+{
+ uint32_t item_idx;
+
+ item_idx = find_an_empty_item(tbl);
+ if (unlikely(item_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ tbl->items[item_idx].inner_item.firstseg = pkt;
+ tbl->items[item_idx].inner_item.lastseg = rte_pktmbuf_lastseg(pkt);
+ tbl->items[item_idx].inner_item.start_time = start_time;
+ tbl->items[item_idx].inner_item.next_pkt_idx = INVALID_ARRAY_INDEX;
+ tbl->items[item_idx].inner_item.sent_seq = sent_seq;
+ tbl->items[item_idx].inner_item.nb_merged = 1;
+ tbl->items[item_idx].outer_ip_id = outer_ip_id;
+ tbl->items[item_idx].outer_is_atomic = outer_is_atomic;
+ tbl->item_num++;
+
+ /* If the previous packet exists, chain the new one with it. */
+ if (prev_idx != INVALID_ARRAY_INDEX) {
+ tbl->items[item_idx].inner_item.next_pkt_idx =
+ tbl->items[prev_idx].inner_item.next_pkt_idx;
+ tbl->items[prev_idx].inner_item.next_pkt_idx = item_idx;
+ }
+
+ return item_idx;
+}
+
+static inline uint32_t
+delete_item(struct gro_vxlan_tcp6_tbl *tbl,
+ uint32_t item_idx,
+ uint32_t prev_item_idx)
+{
+ uint32_t next_idx = tbl->items[item_idx].inner_item.next_pkt_idx;
+
+ /* NULL indicates an empty item. */
+ tbl->items[item_idx].inner_item.firstseg = NULL;
+ tbl->item_num--;
+ if (prev_item_idx != INVALID_ARRAY_INDEX)
+ tbl->items[prev_item_idx].inner_item.next_pkt_idx = next_idx;
+
+ return next_idx;
+}
+
+static inline uint32_t
+insert_new_flow(struct gro_vxlan_tcp6_tbl *tbl,
+ struct vxlan_tcp6_flow_key *src,
+ uint32_t item_idx)
+{
+ struct vxlan_tcp6_flow_key *dst;
+ uint32_t flow_idx;
+
+ flow_idx = find_an_empty_flow(tbl);
+ if (unlikely(flow_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ dst = &(tbl->flows[flow_idx].key);
+
+ rte_ether_addr_copy(&(src->inner_key.eth_saddr),
+ &(dst->inner_key.eth_saddr));
+ rte_ether_addr_copy(&(src->inner_key.eth_daddr),
+ &(dst->inner_key.eth_daddr));
+ gro_ipv6_addr_copy(src->inner_key.ip_saddr, dst->inner_key.ip_saddr);
+ gro_ipv6_addr_copy(src->inner_key.ip_daddr, dst->inner_key.ip_daddr);
+ dst->inner_key.recv_ack = src->inner_key.recv_ack;
+ dst->inner_key.src_port = src->inner_key.src_port;
+ dst->inner_key.dst_port = src->inner_key.dst_port;
+
+ dst->vxlan_hdr.vx_flags = src->vxlan_hdr.vx_flags;
+ dst->vxlan_hdr.vx_vni = src->vxlan_hdr.vx_vni;
+ rte_ether_addr_copy(&(src->outer_eth_saddr), &(dst->outer_eth_saddr));
+ rte_ether_addr_copy(&(src->outer_eth_daddr), &(dst->outer_eth_daddr));
+ dst->outer_ip_src_addr = src->outer_ip_src_addr;
+ dst->outer_ip_dst_addr = src->outer_ip_dst_addr;
+ dst->outer_src_port = src->outer_src_port;
+ dst->outer_dst_port = src->outer_dst_port;
+
+ tbl->flows[flow_idx].start_index = item_idx;
+ tbl->flow_num++;
+
+ return flow_idx;
+}
+
+static inline int
+is_same_vxlan_tcp6_flow(struct vxlan_tcp6_flow_key k1,
+ struct vxlan_tcp6_flow_key k2)
+{
+ return (rte_is_same_ether_addr(&k1.outer_eth_saddr,
+ &k2.outer_eth_saddr) &&
+ rte_is_same_ether_addr(&k1.outer_eth_daddr,
+ &k2.outer_eth_daddr) &&
+ (k1.outer_ip_src_addr == k2.outer_ip_src_addr) &&
+ (k1.outer_ip_dst_addr == k2.outer_ip_dst_addr) &&
+ (k1.outer_src_port == k2.outer_src_port) &&
+ (k1.outer_dst_port == k2.outer_dst_port) &&
+ (k1.vxlan_hdr.vx_flags == k2.vxlan_hdr.vx_flags) &&
+ (k1.vxlan_hdr.vx_vni == k2.vxlan_hdr.vx_vni) &&
+ is_same_tcp6_flow(k1.inner_key, k2.inner_key));
+}
+
+static inline int
+check_vxlan_seq_option_v6(struct gro_vxlan_tcp6_item *item,
+ struct rte_tcp_hdr *tcp_hdr,
+ uint32_t sent_seq,
+ uint16_t outer_ip_id,
+ uint16_t tcp_hl,
+ uint16_t tcp_dl,
+ uint8_t outer_is_atomic)
+{
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ int cmp;
+ uint16_t l2_offset;
+
+ /* Don't merge packets whose outer DF bits are different. */
+ if (unlikely(item->outer_is_atomic ^ outer_is_atomic))
+ return 0;
+
+ l2_offset = pkt->outer_l2_len + pkt->outer_l3_len;
+ cmp = check_seq_option_v6(&item->inner_item, tcp_hdr, sent_seq,
+ tcp_hl, tcp_dl, l2_offset);
+ if ((cmp > 0) && (outer_is_atomic ||
+ (outer_ip_id == item->outer_ip_id + 1)))
+ /* Append the new packet. */
+ return 1;
+ else if ((cmp < 0) && (outer_is_atomic ||
+ (outer_ip_id + item->inner_item.nb_merged ==
+ item->outer_ip_id)))
+ /* Prepend the new packet. */
+ return -1;
+
+ return 0;
+}
+
+static inline int
+merge_two_vxlan_tcp6_packets(struct gro_vxlan_tcp6_item *item,
+ struct rte_mbuf *pkt,
+ int cmp,
+ uint32_t sent_seq,
+ uint16_t outer_ip_id)
+{
+ if (merge_two_tcp6_packets(&item->inner_item, pkt, cmp, sent_seq,
+ pkt->outer_l2_len +
+ pkt->outer_l3_len)) {
+ /* Update the outer IPv4 ID to the large value. */
+ item->outer_ip_id = cmp > 0 ? outer_ip_id : item->outer_ip_id;
+ return 1;
+ }
+
+ return 0;
+}
+
+static inline void
+update_vxlan_header(struct gro_vxlan_tcp6_item *item)
+{
+ struct rte_ipv4_hdr *ipv4_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ uint16_t len;
+
+ /* Update the outer IPv4 header. */
+ len = pkt->pkt_len - pkt->outer_l2_len;
+ ipv4_hdr = (struct rte_ipv4_hdr *)(rte_pktmbuf_mtod(pkt, char *) +
+ pkt->outer_l2_len);
+ ipv4_hdr->total_length = rte_cpu_to_be_16(len);
+
+ /* Update the outer UDP header. */
+ len -= pkt->outer_l3_len;
+ udp_hdr = (struct rte_udp_hdr *)((char *)ipv4_hdr + pkt->outer_l3_len);
+ udp_hdr->dgram_len = rte_cpu_to_be_16(len);
+
+ /* Update the inner IPv6 header. */
+ len -= pkt->l2_len;
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)udp_hdr + pkt->l2_len);
+ /* IPv6 payload_len does not include IPv6 header. */
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(len - pkt->l3_len);
+}
+
+int32_t
+gro_vxlan_tcp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan_tcp6_tbl *tbl,
+ uint64_t start_time)
+{
+ struct rte_ether_hdr *outer_eth_hdr, *eth_hdr;
+ struct rte_ipv4_hdr *outer_ipv4_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_tcp_hdr *tcp_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_vxlan_hdr *vxlan_hdr;
+ uint32_t sent_seq;
+ int32_t tcp_dl;
+ uint16_t frag_off, outer_ip_id;
+ uint8_t outer_is_atomic;
+
+ struct vxlan_tcp6_flow_key key;
+ uint32_t cur_idx, prev_idx, item_idx;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ int cmp;
+ uint16_t hdr_len;
+ uint8_t find;
+
+ /*
+ * Don't process the packet whose TCP header length is greater
+ * than 60 bytes or less than 20 bytes.
+ */
+ if (unlikely(INVALID_TCP_HDRLEN(pkt->l4_len)))
+ return -1;
+
+ outer_eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ outer_ipv4_hdr = (struct rte_ipv4_hdr *)((char *)outer_eth_hdr +
+ pkt->outer_l2_len);
+ udp_hdr = (struct rte_udp_hdr *)((char *)outer_ipv4_hdr +
+ pkt->outer_l3_len);
+ vxlan_hdr = (struct rte_vxlan_hdr *)((char *)udp_hdr +
+ sizeof(struct rte_udp_hdr));
+ eth_hdr = (struct rte_ether_hdr *)((char *)vxlan_hdr +
+ sizeof(struct rte_vxlan_hdr));
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)udp_hdr + pkt->l2_len);
+ tcp_hdr = (struct rte_tcp_hdr *)((char *)ipv6_hdr + pkt->l3_len);
+
+ /*
+ * Don't process the packet which has FIN, SYN, RST, PSH, URG,
+ * ECE or CWR set.
+ */
+ if (tcp_hdr->tcp_flags != RTE_TCP_ACK_FLAG)
+ return -1;
+
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len + pkt->l4_len;
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ if (pkt->pkt_len <= hdr_len)
+ return -1;
+ tcp_dl = pkt->pkt_len - hdr_len;
+
+ /*
+ * Save IPv4 ID for the packet whose DF bit is 0. For the packet
+ * whose DF bit is 1, IPv4 ID is ignored.
+ */
+ frag_off = rte_be_to_cpu_16(outer_ipv4_hdr->fragment_offset);
+ outer_is_atomic =
+ (frag_off & RTE_IPV4_HDR_DF_FLAG) == RTE_IPV4_HDR_DF_FLAG;
+ outer_ip_id = outer_is_atomic ? 0 :
+ rte_be_to_cpu_16(outer_ipv4_hdr->packet_id);
+
+ sent_seq = rte_be_to_cpu_32(tcp_hdr->sent_seq);
+
+ rte_ether_addr_copy(&(eth_hdr->s_addr), &(key.inner_key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->d_addr), &(key.inner_key.eth_daddr));
+ gro_ipv6_addr_copy(ipv6_hdr->src_addr, key.inner_key.ip_saddr);
+ gro_ipv6_addr_copy(ipv6_hdr->dst_addr, key.inner_key.ip_daddr);
+ key.inner_key.recv_ack = tcp_hdr->recv_ack;
+ key.inner_key.src_port = tcp_hdr->src_port;
+ key.inner_key.dst_port = tcp_hdr->dst_port;
+
+ key.vxlan_hdr.vx_flags = vxlan_hdr->vx_flags;
+ key.vxlan_hdr.vx_vni = vxlan_hdr->vx_vni;
+ rte_ether_addr_copy(&(outer_eth_hdr->s_addr), &(key.outer_eth_saddr));
+ rte_ether_addr_copy(&(outer_eth_hdr->d_addr), &(key.outer_eth_daddr));
+ key.outer_ip_src_addr = outer_ipv4_hdr->src_addr;
+ key.outer_ip_dst_addr = outer_ipv4_hdr->dst_addr;
+ key.outer_src_port = udp_hdr->src_port;
+ key.outer_dst_port = udp_hdr->dst_port;
+
+ /* Search for a matched flow. */
+ max_flow_num = tbl->max_flow_num;
+ remaining_flow_num = tbl->flow_num;
+ find = 0;
+ for (i = 0; i < max_flow_num && remaining_flow_num; i++) {
+ if (tbl->flows[i].start_index != INVALID_ARRAY_INDEX) {
+ if (is_same_vxlan_tcp6_flow(tbl->flows[i].key, key)) {
+ find = 1;
+ break;
+ }
+ remaining_flow_num--;
+ }
+ }
+
+ /*
+ * Can't find a matched flow. Insert a new flow and store the
+ * packet into the flow.
+ */
+ if (find == 0) {
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, sent_seq, outer_ip_id,
+ outer_is_atomic);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ if (insert_new_flow(tbl, &key, item_idx) ==
+ INVALID_ARRAY_INDEX) {
+ /*
+ * Fail to insert a new flow, so
+ * delete the inserted packet.
+ */
+ delete_item(tbl, item_idx, INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Check all packets in the flow and try to find a neighbor. */
+ cur_idx = tbl->flows[i].start_index;
+ prev_idx = cur_idx;
+ do {
+ cmp = check_vxlan_seq_option_v6(&(tbl->items[cur_idx]), tcp_hdr,
+ sent_seq, outer_ip_id, pkt->l4_len,
+ tcp_dl, outer_is_atomic);
+ if (cmp) {
+ if (merge_two_vxlan_tcp6_packets(&(tbl->items[cur_idx]),
+ pkt, cmp, sent_seq,
+ outer_ip_id))
+ return 1;
+ /*
+ * Can't merge two packets, as the packet
+ * length will be greater than the max value.
+ * Insert the packet into the flow.
+ */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ sent_seq, outer_ip_id,
+ outer_is_atomic) ==
+ INVALID_ARRAY_INDEX)
+ return -1;
+ return 0;
+ }
+ prev_idx = cur_idx;
+ cur_idx = tbl->items[cur_idx].inner_item.next_pkt_idx;
+ } while (cur_idx != INVALID_ARRAY_INDEX);
+
+ /* Can't find neighbor. Insert the packet into the flow. */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx, sent_seq,
+ outer_ip_id, outer_is_atomic
+ ) == INVALID_ARRAY_INDEX)
+ return -1;
+
+ return 0;
+}
+
+uint16_t
+gro_vxlan_tcp6_tbl_timeout_flush(struct gro_vxlan_tcp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out)
+{
+ uint16_t k = 0;
+ uint32_t i, j;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++) {
+ if (unlikely(tbl->flow_num == 0))
+ return k;
+
+ j = tbl->flows[i].start_index;
+ while (j != INVALID_ARRAY_INDEX) {
+ if (tbl->items[j].inner_item.start_time <=
+ flush_timestamp) {
+ out[k++] = tbl->items[j].inner_item.firstseg;
+ if (tbl->items[j].inner_item.nb_merged > 1)
+ update_vxlan_header(&(tbl->items[j]));
+ /*
+ * Delete the item and get the next packet
+ * index.
+ */
+ j = delete_item(tbl, j, INVALID_ARRAY_INDEX);
+ tbl->flows[i].start_index = j;
+ if (j == INVALID_ARRAY_INDEX)
+ tbl->flow_num--;
+
+ if (unlikely(k == nb_out))
+ return k;
+ } else
+ /*
+ * The left packets in the flow won't be
+ * timeout. Go to check other flows.
+ */
+ break;
+ }
+ }
+ return k;
+}
+
+uint32_t
+gro_vxlan_tcp6_tbl_pkt_count(void *tbl)
+{
+ struct gro_vxlan_tcp6_tbl *gro_tbl = tbl;
+
+ if (gro_tbl)
+ return gro_tbl->item_num;
+
+ return 0;
+}
diff --git a/lib/librte_gro/gro_vxlan_tcp6.h b/lib/librte_gro/gro_vxlan_tcp6.h
new file mode 100644
index 0000000..87d03d8
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan_tcp6.h
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#ifndef _GRO_VXLAN_TCP6_H_
+#define _GRO_VXLAN_TCP6_H_
+
+#include "gro_tcp6.h"
+
+#define GRO_VXLAN_TCP6_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/* Header fields representing a VxLAN flow */
+struct vxlan_tcp6_flow_key {
+ struct tcp6_flow_key inner_key;
+ struct rte_vxlan_hdr vxlan_hdr;
+
+ struct rte_ether_addr outer_eth_saddr;
+ struct rte_ether_addr outer_eth_daddr;
+
+ uint32_t outer_ip_src_addr;
+ uint32_t outer_ip_dst_addr;
+
+ /* Outer UDP ports */
+ uint16_t outer_src_port;
+ uint16_t outer_dst_port;
+
+};
+
+struct gro_vxlan_tcp6_flow {
+ struct vxlan_tcp6_flow_key key;
+ /*
+ * The index of the first packet in the flow. INVALID_ARRAY_INDEX
+ * indicates an empty flow.
+ */
+ uint32_t start_index;
+};
+
+struct gro_vxlan_tcp6_item {
+ struct gro_tcp6_item inner_item;
+ /* IPv4 ID in the outer IPv4 header */
+ uint16_t outer_ip_id;
+ /* Indicate if outer IPv4 ID can be ignored */
+ uint8_t outer_is_atomic;
+};
+
+/*
+ * VxLAN (with an outer IPv4 header and an inner TCP/IPv6 packet)
+ * reassembly table structure
+ */
+struct gro_vxlan_tcp6_tbl {
+ /* item array */
+ struct gro_vxlan_tcp6_item *items;
+ /* flow array */
+ struct gro_vxlan_tcp6_flow *flows;
+ /* current item number */
+ uint32_t item_num;
+ /* current flow number */
+ uint32_t flow_num;
+ /* the maximum item number */
+ uint32_t max_item_num;
+ /* the maximum flow number */
+ uint32_t max_flow_num;
+};
+
+/**
+ * This function creates a VxLAN reassembly table for VxLAN packets
+ * which have an outer IPv4 header and an inner TCP/IPv6 packet.
+ *
+ * @param socket_id
+ * Socket index for allocating the table
+ * @param max_flow_num
+ * The maximum number of flows in the table
+ * @param max_item_per_flow
+ * The maximum number of packets per flow
+ *
+ * @return
+ * - Return the table pointer on success.
+ * - Return NULL on failure.
+ */
+void *gro_vxlan_tcp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow);
+
+/**
+ * This function destroys a VxLAN reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the VxLAN reassembly table
+ */
+void gro_vxlan_tcp6_tbl_destroy(void *tbl);
+
+/**
+ * This function merges a VxLAN packet which has an outer IPv4 header and
+ * an inner TCP/IPv6 packet. It does not process the packet, whose TCP
+ * header has SYN, FIN, RST, PSH, CWR, ECE or URG bit set, or which
+ * does not have payload.
+ *
+ * This function does not check if the packet has correct checksums and
+ * does not re-calculate checksums for the merged packet. Additionally,
+ * it assumes the packets are complete (i.e., MF==0 && frag_off==0), when
+ * IP fragmentation is possible (i.e., DF==0). It returns the packet, if
+ * the packet has invalid parameters (e.g. SYN bit is set) or there is no
+ * available space in the table.
+ *
+ * @param pkt
+ * Packet to reassemble
+ * @param tbl
+ * Pointer pointing to the VxLAN reassembly table
+ * @start_time
+ * The time when the packet is inserted into the table
+ *
+ * @return
+ * - Return a positive value if the packet is merged.
+ * - Return zero if the packet isn't merged but stored in the table.
+ * - Return a negative value for invalid parameters or no available
+ * space in the table.
+ */
+int32_t gro_vxlan_tcp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan_tcp6_tbl *tbl,
+ uint64_t start_time);
+
+/**
+ * This function flushes timeout packets in the VxLAN reassembly table,
+ * and without updating checksums.
+ *
+ * @param tbl
+ * Pointer pointing to a VxLAN GRO table
+ * @param flush_timestamp
+ * This function flushes packets which are inserted into the table
+ * before or at the flush_timestamp.
+ * @param out
+ * Pointer array used to keep flushed packets
+ * @param nb_out
+ * The element number in 'out'. It also determines the maximum number of
+ * packets that can be flushed finally.
+ *
+ * @return
+ * The number of flushed packets
+ */
+uint16_t gro_vxlan_tcp6_tbl_timeout_flush(struct gro_vxlan_tcp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out);
+
+/**
+ * This function returns the number of the packets in a VxLAN
+ * reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the VxLAN reassembly table
+ *
+ * @return
+ * The number of packets in the table
+ */
+uint32_t gro_vxlan_tcp6_tbl_pkt_count(void *tbl);
+#endif
diff --git a/lib/librte_gro/meson.build b/lib/librte_gro/meson.build
index 6143dd0..020e7e8 100644
--- a/lib/librte_gro/meson.build
+++ b/lib/librte_gro/meson.build
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
-sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c')
+sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c')
headers = files('rte_gro.h')
deps += ['ethdev']
diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index 86958d5..89fed3c 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -12,6 +12,7 @@
#include "gro_tcp6.h"
#include "gro_udp4.h"
#include "gro_vxlan_tcp4.h"
+#include "gro_vxlan_tcp6.h"
#include "gro_vxlan_udp4.h"
typedef void *(*gro_tbl_create_fn)(uint16_t socket_id,
@@ -23,15 +24,16 @@
static gro_tbl_create_fn tbl_create_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_create, gro_vxlan_tcp4_tbl_create,
gro_udp4_tbl_create, gro_vxlan_udp4_tbl_create,
- gro_tcp6_tbl_create, NULL};
+ gro_tcp6_tbl_create, gro_vxlan_tcp6_tbl_create, NULL};
static gro_tbl_destroy_fn tbl_destroy_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_destroy, gro_vxlan_tcp4_tbl_destroy,
gro_udp4_tbl_destroy, gro_vxlan_udp4_tbl_destroy,
- gro_tcp6_tbl_destroy, NULL};
+ gro_tcp6_tbl_destroy, gro_vxlan_tcp6_tbl_destroy, NULL};
static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_pkt_count, gro_vxlan_tcp4_tbl_pkt_count,
gro_udp4_tbl_pkt_count, gro_vxlan_udp4_tbl_pkt_count,
- gro_tcp6_tbl_pkt_count, NULL};
+ gro_tcp6_tbl_pkt_count, gro_vxlan_tcp6_tbl_pkt_count,
+ NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
@@ -71,6 +73,19 @@
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
(RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
+#define IS_IPV4_VXLAN_TCP6_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+ ((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
+ RTE_PTYPE_TUNNEL_VXLAN) && \
+ ((ptype & RTE_PTYPE_INNER_L4_TCP) == \
+ RTE_PTYPE_INNER_L4_TCP) && \
+ (((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6_EXT) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN)))
+
/*
* GRO context structure. It keeps the table structures, which are
* used to merge packets, for different GRO types. Before using
@@ -176,19 +191,25 @@ struct gro_ctx {
struct gro_tcp6_flow tcp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
struct gro_tcp6_item tcp6_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{0} };
+ /* Allocate a reassembly table for VXLAN TCP/IPv6 GRO */
+ struct gro_vxlan_tcp6_tbl vxlan_tcp6_tbl;
+ struct gro_vxlan_tcp6_flow vxlan_tcp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_vxlan_tcp6_item vxlan_tcp6_items[RTE_GRO_MAX_BURST_ITEM_NUM]
+ = {{{0}, 0, 0} };
struct rte_mbuf *unprocess_pkts[nb_pkts];
uint32_t item_num;
int32_t ret;
uint16_t i, unprocess_num = 0, nb_after_gro = nb_pkts;
uint8_t do_tcp4_gro = 0, do_vxlan_tcp_gro = 0, do_udp4_gro = 0,
- do_vxlan_udp_gro = 0, do_tcp6_gro = 0;
+ do_vxlan_udp_gro = 0, do_tcp6_gro = 0, do_vxlan_tcp6_gro = 0;
if (unlikely((param->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
RTE_GRO_IPV4_VXLAN_UDP_IPV4 |
RTE_GRO_UDP_IPV4 |
- RTE_GRO_TCP_IPV6)) == 0))
+ RTE_GRO_TCP_IPV6 |
+ RTE_GRO_IPV4_VXLAN_TCP_IPV6)) == 0))
return nb_pkts;
/* Get the maximum number of packets */
@@ -261,7 +282,18 @@ struct gro_ctx {
do_tcp6_gro = 1;
}
-
+ if (param->gro_types & RTE_GRO_IPV4_VXLAN_TCP_IPV6) {
+ for (i = 0; i < item_num; i++)
+ vxlan_tcp6_flows[i].start_index = INVALID_ARRAY_INDEX;
+
+ vxlan_tcp6_tbl.flows = vxlan_tcp6_flows;
+ vxlan_tcp6_tbl.items = vxlan_tcp6_items;
+ vxlan_tcp6_tbl.flow_num = 0;
+ vxlan_tcp6_tbl.item_num = 0;
+ vxlan_tcp6_tbl.max_flow_num = item_num;
+ vxlan_tcp6_tbl.max_item_num = item_num;
+ do_vxlan_tcp6_gro = 1;
+ }
for (i = 0; i < nb_pkts; i++) {
/*
@@ -310,6 +342,15 @@ struct gro_ctx {
nb_after_gro--;
else if (ret < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV4_VXLAN_TCP6_PKT(pkts[i]->packet_type) &&
+ do_vxlan_tcp6_gro) {
+ ret = gro_vxlan_tcp6_reassemble(pkts[i],
+ &vxlan_tcp6_tbl, 0);
+ if (ret > 0)
+ /* Merge successfully */
+ nb_after_gro--;
+ else if (ret < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -344,6 +385,11 @@ struct gro_ctx {
&pkts[i], nb_pkts - i);
}
+ if (do_vxlan_tcp6_gro) {
+ i += gro_vxlan_tcp6_tbl_timeout_flush(&vxlan_tcp6_tbl,
+ 0, &pkts[i], nb_pkts - i);
+ }
+
/* Copy unprocessed packets */
if (unprocess_num > 0) {
memcpy(&pkts[i], unprocess_pkts,
@@ -363,17 +409,19 @@ struct gro_ctx {
{
struct rte_mbuf *unprocess_pkts[nb_pkts];
struct gro_ctx *gro_ctx = ctx;
- void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl;
+ void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl,
+ *vxlan_tcp6_tbl;
uint64_t current_time;
uint16_t i, unprocess_num = 0;
uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro,
- do_tcp6_gro;
+ do_tcp6_gro, do_vxlan_tcp6_gro;
if (unlikely((gro_ctx->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
RTE_GRO_IPV4_VXLAN_UDP_IPV4 |
RTE_GRO_UDP_IPV4 |
- RTE_GRO_TCP_IPV6)) == 0))
+ RTE_GRO_TCP_IPV6 |
+ RTE_GRO_IPV4_VXLAN_TCP_IPV6)) == 0))
return nb_pkts;
tcp_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV4_INDEX];
@@ -381,6 +429,7 @@ struct gro_ctx {
udp_tbl = gro_ctx->tbls[RTE_GRO_UDP_IPV4_INDEX];
vxlan_udp_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_UDP_IPV4_INDEX];
tcp6_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV6_INDEX];
+ vxlan_tcp6_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX];
do_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV4) ==
RTE_GRO_TCP_IPV4;
@@ -392,6 +441,8 @@ struct gro_ctx {
RTE_GRO_IPV4_VXLAN_UDP_IPV4;
do_tcp6_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV6) ==
RTE_GRO_TCP_IPV6;
+ do_vxlan_tcp6_gro = (gro_ctx->gro_types & RTE_GRO_IPV4_VXLAN_TCP_IPV6)
+ == RTE_GRO_IPV4_VXLAN_TCP_IPV6;
current_time = rte_rdtsc();
@@ -421,6 +472,11 @@ struct gro_ctx {
if (gro_tcp6_reassemble(pkts[i], tcp6_tbl,
current_time) < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV4_VXLAN_TCP6_PKT(pkts[i]->packet_type) &&
+ do_vxlan_tcp6_gro) {
+ if (gro_vxlan_tcp6_reassemble(pkts[i], vxlan_tcp6_tbl,
+ current_time) < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -483,6 +539,13 @@ struct gro_ctx {
num += gro_tcp6_tbl_timeout_flush(gro_ctx->tbls[
RTE_GRO_TCP_IPV6_INDEX],
flush_timestamp, &out[num], left_nb_out);
+ left_nb_out = max_nb_out - num;
+ }
+
+ if ((gro_types & RTE_GRO_IPV4_VXLAN_TCP_IPV6) && left_nb_out > 0) {
+ num += gro_vxlan_tcp6_tbl_timeout_flush(gro_ctx->tbls[
+ RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX],
+ flush_timestamp, &out[num], left_nb_out);
}
return num;
diff --git a/lib/librte_gro/rte_gro.h b/lib/librte_gro/rte_gro.h
index 39b57e8..41a2bec 100644
--- a/lib/librte_gro/rte_gro.h
+++ b/lib/librte_gro/rte_gro.h
@@ -41,6 +41,9 @@
#define RTE_GRO_TCP_IPV6_INDEX 4
#define RTE_GRO_TCP_IPV6 (1ULL << RTE_GRO_TCP_IPV6_INDEX)
/**< TCP/IPv6 GRO flag */
+#define RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX 5
+#define RTE_GRO_IPV4_VXLAN_TCP_IPV6 (1ULL << RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX)
+/**< IPv4 VxLAN TCP/IPv6 GRO flag. */
/**
* Structure used to create GRO context objects or used to pass
--
1.8.3.1
^ permalink raw reply [flat|nested] 13+ messages in thread* [dpdk-dev] [PATCH v1 3/8] gro: support IPv6 VXLAN TCP/IPv4
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 1/8] gro: support TCP/IPv6 yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 2/8] gro: support IPv4 VXLAN TCP/IPv6 yang_y_yi
@ 2020-12-21 3:50 ` yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 4/8] gro: support IPv6 VXLAN TCP/IPv6 yang_y_yi
` (5 subsequent siblings)
8 siblings, 0 replies; 13+ messages in thread
From: yang_y_yi @ 2020-12-21 3:50 UTC (permalink / raw)
To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi
From: Yi Yang <yangyi01@inspur.com>
IPv6 VXLAN TCP/IPv4 GRO can help improve TCP/IPv4 performance
in IPv6 VXLAN use case.
With this enabled in DPDK, OVS DPDK can leverage it to improve
VM-to-VM TCP/IPv4 performance, it will merge small adjacent
IPv6 VXLAN TCP/IPv4 packets to a big IPv6 VXLAN TCP/IPv4 packet
immediate after they are received from a physical NIC. It is
very helpful in OVS DPDK IPv6 VXLAN use case.
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
.../prog_guide/generic_receive_offload_lib.rst | 3 +-
doc/guides/rel_notes/release_21_02.rst | 4 +
lib/librte_gro/gro_vxlan6_tcp4.c | 507 +++++++++++++++++++++
lib/librte_gro/gro_vxlan6_tcp4.h | 153 +++++++
lib/librte_gro/meson.build | 2 +-
lib/librte_gro/rte_gro.c | 86 +++-
lib/librte_gro/rte_gro.h | 3 +
7 files changed, 747 insertions(+), 11 deletions(-)
create mode 100644 lib/librte_gro/gro_vxlan6_tcp4.c
create mode 100644 lib/librte_gro/gro_vxlan6_tcp4.h
diff --git a/doc/guides/prog_guide/generic_receive_offload_lib.rst b/doc/guides/prog_guide/generic_receive_offload_lib.rst
index ecb5909..a822eaf 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -32,7 +32,8 @@ fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
Currently, the GRO library provides GRO supports for TCP/IPv4, UDP/IPv4,
and TCP/IPv6 packets as well as VxLAN packets which contain an outer IPv4
-header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6 packet.
+header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6 packet or an outer IPv6
+header and an inner TCP/IPv4 packet.
Two Sets of API
---------------
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index 035d774..3b98915 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -65,6 +65,10 @@ New Features
Added TCP/IPv6 GRO support for IPv4 VXLAN packets, this enabled TCP/IPv6
GRO support for IPv4 VXLAN use case.
+* **Added TCP/IPv4 GRO support for IPv6 VXLAN packets.**
+
+ Added TCP/IPv4 GRO support for IPv6 VXLAN packets, this enabled TCP/IPv4
+ GRO support for IPv6 VXLAN use case.
Removed Items
-------------
diff --git a/lib/librte_gro/gro_vxlan6_tcp4.c b/lib/librte_gro/gro_vxlan6_tcp4.c
new file mode 100644
index 0000000..1e17c1a
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan6_tcp4.c
@@ -0,0 +1,507 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_udp.h>
+
+#include "gro_vxlan6_tcp4.h"
+
+/*
+ * Check if two IPv6 address is same.
+ */
+static inline int rte_is_same_ipv6_addr(const uint8_t *ipv6_a1,
+ const uint8_t *ipv6_a2)
+{
+ const uint64_t *w1 = (const uint64_t *)ipv6_a1;
+ const uint64_t *w2 = (const uint64_t *)ipv6_a2;
+
+ return ((w1[0] ^ w2[0]) | (w1[1] ^ w2[1])) == 0;
+}
+
+/* Copy IPv6 addr */
+static inline void gro_ipv6_addr_copy(const uint8_t *ipv6_from,
+ uint8_t *ipv6_to)
+{
+ const uint64_t *from_words = (const uint64_t *)ipv6_from;
+ uint64_t *to_words = (uint64_t *)ipv6_to;
+
+ to_words[0] = from_words[0];
+ to_words[1] = from_words[1];
+}
+
+void *
+gro_vxlan6_tcp4_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow)
+{
+ struct gro_vxlan6_tcp4_tbl *tbl;
+ size_t size;
+ uint32_t entries_num, i;
+
+ entries_num = max_flow_num * max_item_per_flow;
+ entries_num = RTE_MIN(entries_num, GRO_VXLAN6_TCP4_TBL_MAX_ITEM_NUM);
+
+ if (entries_num == 0)
+ return NULL;
+
+ tbl = rte_zmalloc_socket(__func__,
+ sizeof(struct gro_vxlan6_tcp4_tbl),
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl == NULL)
+ return NULL;
+
+ size = sizeof(struct gro_vxlan6_tcp4_item) * entries_num;
+ tbl->items = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->items == NULL) {
+ rte_free(tbl);
+ return NULL;
+ }
+ tbl->max_item_num = entries_num;
+
+ size = sizeof(struct gro_vxlan6_tcp4_flow) * entries_num;
+ tbl->flows = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->flows == NULL) {
+ rte_free(tbl->items);
+ rte_free(tbl);
+ return NULL;
+ }
+
+ for (i = 0; i < entries_num; i++)
+ tbl->flows[i].start_index = INVALID_ARRAY_INDEX;
+ tbl->max_flow_num = entries_num;
+
+ return tbl;
+}
+
+void
+gro_vxlan6_tcp4_tbl_destroy(void *tbl)
+{
+ struct gro_vxlan6_tcp4_tbl *vxlan6_tbl = tbl;
+
+ if (vxlan6_tbl) {
+ rte_free(vxlan6_tbl->items);
+ rte_free(vxlan6_tbl->flows);
+ }
+ rte_free(vxlan6_tbl);
+}
+
+static inline uint32_t
+find_an_empty_item(struct gro_vxlan6_tcp4_tbl *tbl)
+{
+ uint32_t max_item_num = tbl->max_item_num, i;
+
+ for (i = 0; i < max_item_num; i++)
+ if (tbl->items[i].inner_item.firstseg == NULL)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+find_an_empty_flow(struct gro_vxlan6_tcp4_tbl *tbl)
+{
+ uint32_t max_flow_num = tbl->max_flow_num, i;
+
+ for (i = 0; i < max_flow_num; i++)
+ if (tbl->flows[i].start_index == INVALID_ARRAY_INDEX)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+insert_new_item(struct gro_vxlan6_tcp4_tbl *tbl,
+ struct rte_mbuf *pkt,
+ uint64_t start_time,
+ uint32_t prev_idx,
+ uint32_t sent_seq,
+ uint16_t ip_id,
+ uint8_t is_atomic)
+{
+ uint32_t item_idx;
+
+ item_idx = find_an_empty_item(tbl);
+ if (unlikely(item_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ tbl->items[item_idx].inner_item.firstseg = pkt;
+ tbl->items[item_idx].inner_item.lastseg = rte_pktmbuf_lastseg(pkt);
+ tbl->items[item_idx].inner_item.start_time = start_time;
+ tbl->items[item_idx].inner_item.next_pkt_idx = INVALID_ARRAY_INDEX;
+ tbl->items[item_idx].inner_item.sent_seq = sent_seq;
+ tbl->items[item_idx].inner_item.ip_id = ip_id;
+ tbl->items[item_idx].inner_item.nb_merged = 1;
+ tbl->items[item_idx].inner_item.is_atomic = is_atomic;
+ tbl->item_num++;
+
+ /* If the previous packet exists, chain the new one with it. */
+ if (prev_idx != INVALID_ARRAY_INDEX) {
+ tbl->items[item_idx].inner_item.next_pkt_idx =
+ tbl->items[prev_idx].inner_item.next_pkt_idx;
+ tbl->items[prev_idx].inner_item.next_pkt_idx = item_idx;
+ }
+
+ return item_idx;
+}
+
+static inline uint32_t
+delete_item(struct gro_vxlan6_tcp4_tbl *tbl,
+ uint32_t item_idx,
+ uint32_t prev_item_idx)
+{
+ uint32_t next_idx = tbl->items[item_idx].inner_item.next_pkt_idx;
+
+ /* NULL indicates an empty item. */
+ tbl->items[item_idx].inner_item.firstseg = NULL;
+ tbl->item_num--;
+ if (prev_item_idx != INVALID_ARRAY_INDEX)
+ tbl->items[prev_item_idx].inner_item.next_pkt_idx = next_idx;
+
+ return next_idx;
+}
+
+static inline uint32_t
+insert_new_flow(struct gro_vxlan6_tcp4_tbl *tbl,
+ struct vxlan6_tcp4_flow_key *src,
+ uint32_t item_idx)
+{
+ struct vxlan6_tcp4_flow_key *dst;
+ uint32_t flow_idx;
+
+ flow_idx = find_an_empty_flow(tbl);
+ if (unlikely(flow_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ dst = &(tbl->flows[flow_idx].key);
+
+ rte_ether_addr_copy(&(src->inner_key.eth_saddr),
+ &(dst->inner_key.eth_saddr));
+ rte_ether_addr_copy(&(src->inner_key.eth_daddr),
+ &(dst->inner_key.eth_daddr));
+ dst->inner_key.ip_src_addr = src->inner_key.ip_src_addr;
+ dst->inner_key.ip_dst_addr = src->inner_key.ip_dst_addr;
+ dst->inner_key.recv_ack = src->inner_key.recv_ack;
+ dst->inner_key.src_port = src->inner_key.src_port;
+ dst->inner_key.dst_port = src->inner_key.dst_port;
+
+ dst->vxlan_hdr.vx_flags = src->vxlan_hdr.vx_flags;
+ dst->vxlan_hdr.vx_vni = src->vxlan_hdr.vx_vni;
+ rte_ether_addr_copy(&(src->outer_eth_saddr), &(dst->outer_eth_saddr));
+ rte_ether_addr_copy(&(src->outer_eth_daddr), &(dst->outer_eth_daddr));
+ gro_ipv6_addr_copy(src->outer_ip_saddr, dst->outer_ip_saddr);
+ gro_ipv6_addr_copy(src->outer_ip_daddr, dst->outer_ip_daddr);
+ dst->outer_src_port = src->outer_src_port;
+ dst->outer_dst_port = src->outer_dst_port;
+
+ tbl->flows[flow_idx].start_index = item_idx;
+ tbl->flow_num++;
+
+ return flow_idx;
+}
+
+static inline int
+is_same_vxlan6_tcp4_flow(struct vxlan6_tcp4_flow_key k1,
+ struct vxlan6_tcp4_flow_key k2)
+{
+ return (rte_is_same_ether_addr(&k1.outer_eth_saddr,
+ &k2.outer_eth_saddr) &&
+ rte_is_same_ether_addr(&k1.outer_eth_daddr,
+ &k2.outer_eth_daddr) &&
+ rte_is_same_ipv6_addr(k1.outer_ip_saddr,
+ k2.outer_ip_saddr) &&
+ rte_is_same_ipv6_addr(k1.outer_ip_daddr,
+ k2.outer_ip_daddr) &&
+ (k1.outer_src_port == k2.outer_src_port) &&
+ (k1.outer_dst_port == k2.outer_dst_port) &&
+ (k1.vxlan_hdr.vx_flags == k2.vxlan_hdr.vx_flags) &&
+ (k1.vxlan_hdr.vx_vni == k2.vxlan_hdr.vx_vni) &&
+ is_same_tcp4_flow(k1.inner_key, k2.inner_key));
+}
+
+static inline int
+check_vxlan6_seq_option(struct gro_vxlan6_tcp4_item *item,
+ struct rte_tcp_hdr *tcp_hdr,
+ uint32_t sent_seq,
+ uint16_t ip_id,
+ uint16_t tcp_hl,
+ uint16_t tcp_dl,
+ uint8_t is_atomic)
+{
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ int cmp;
+ uint16_t l2_offset;
+
+ l2_offset = pkt->outer_l2_len + pkt->outer_l3_len;
+ cmp = check_seq_option(&item->inner_item, tcp_hdr, sent_seq, ip_id,
+ tcp_hl, tcp_dl, l2_offset, is_atomic);
+ if (cmp > 0)
+ /* Append the new packet. */
+ return 1;
+ else if (cmp < 0)
+ /* Prepend the new packet. */
+ return -1;
+
+ return 0;
+}
+
+static inline int
+merge_two_vxlan6_tcp4_packets(struct gro_vxlan6_tcp4_item *item,
+ struct rte_mbuf *pkt,
+ int cmp,
+ uint32_t sent_seq,
+ uint16_t ip_id)
+{
+ if (merge_two_tcp4_packets(&item->inner_item, pkt, cmp, sent_seq,
+ ip_id, pkt->outer_l2_len +
+ pkt->outer_l3_len))
+ return 1;
+
+ return 0;
+}
+
+static inline void
+update_vxlan6_header(struct gro_vxlan6_tcp4_item *item)
+{
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_ipv4_hdr *ipv4_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ uint16_t len;
+
+ /* Update the outer IPv6 header. */
+ len = pkt->pkt_len - pkt->outer_l2_len;
+ ipv6_hdr = (struct rte_ipv6_hdr *)(rte_pktmbuf_mtod(pkt, char *) +
+ pkt->outer_l2_len);
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(len - pkt->outer_l3_len);
+
+ /* Update the outer UDP header. */
+ len -= pkt->outer_l3_len;
+ udp_hdr = (struct rte_udp_hdr *)((char *)ipv6_hdr + pkt->outer_l3_len);
+ udp_hdr->dgram_len = rte_cpu_to_be_16(len);
+
+ /* Update the inner IPv4 header. */
+ len -= pkt->l2_len;
+ ipv4_hdr = (struct rte_ipv4_hdr *)((char *)udp_hdr + pkt->l2_len);
+ ipv4_hdr->total_length = rte_cpu_to_be_16(len);
+}
+
+int32_t
+gro_vxlan6_tcp4_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan6_tcp4_tbl *tbl,
+ uint64_t start_time)
+{
+ struct rte_ether_hdr *outer_eth_hdr, *eth_hdr;
+ struct rte_ipv6_hdr *outer_ipv6_hdr;
+ struct rte_ipv4_hdr *ipv4_hdr;
+ struct rte_tcp_hdr *tcp_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_vxlan_hdr *vxlan_hdr;
+ uint32_t sent_seq;
+ int32_t tcp_dl;
+ uint16_t frag_off, ip_id;
+ uint8_t is_atomic;
+
+ struct vxlan6_tcp4_flow_key key;
+ uint32_t cur_idx, prev_idx, item_idx;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ int cmp;
+ uint16_t hdr_len;
+ uint8_t find;
+
+ /*
+ * Don't process the packet whose TCP header length is greater
+ * than 60 bytes or less than 20 bytes.
+ */
+ if (unlikely(INVALID_TCP_HDRLEN(pkt->l4_len)))
+ return -1;
+
+ outer_eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ outer_ipv6_hdr = (struct rte_ipv6_hdr *)((char *)outer_eth_hdr +
+ pkt->outer_l2_len);
+ udp_hdr = (struct rte_udp_hdr *)((char *)outer_ipv6_hdr +
+ pkt->outer_l3_len);
+ vxlan_hdr = (struct rte_vxlan_hdr *)((char *)udp_hdr +
+ sizeof(struct rte_udp_hdr));
+ eth_hdr = (struct rte_ether_hdr *)((char *)vxlan_hdr +
+ sizeof(struct rte_vxlan_hdr));
+ ipv4_hdr = (struct rte_ipv4_hdr *)((char *)udp_hdr + pkt->l2_len);
+ tcp_hdr = (struct rte_tcp_hdr *)((char *)ipv4_hdr + pkt->l3_len);
+
+ /*
+ * Don't process the packet which has FIN, SYN, RST, PSH, URG,
+ * ECE or CWR set.
+ */
+ if (tcp_hdr->tcp_flags != RTE_TCP_ACK_FLAG)
+ return -1;
+
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len + pkt->l4_len;
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ if (pkt->pkt_len <= hdr_len)
+ return -1;
+ tcp_dl = pkt->pkt_len - hdr_len;
+
+ /*
+ * Save IPv4 ID for the packet whose DF bit is 0. For the packet
+ * whose DF bit is 1, IPv4 ID is ignored.
+ */
+ frag_off = rte_be_to_cpu_16(ipv4_hdr->fragment_offset);
+ is_atomic = (frag_off & RTE_IPV4_HDR_DF_FLAG) == RTE_IPV4_HDR_DF_FLAG;
+ ip_id = is_atomic ? 0 : rte_be_to_cpu_16(ipv4_hdr->packet_id);
+
+ sent_seq = rte_be_to_cpu_32(tcp_hdr->sent_seq);
+
+ rte_ether_addr_copy(&(eth_hdr->s_addr), &(key.inner_key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->d_addr), &(key.inner_key.eth_daddr));
+ key.inner_key.ip_src_addr = ipv4_hdr->src_addr;
+ key.inner_key.ip_dst_addr = ipv4_hdr->dst_addr;
+ key.inner_key.recv_ack = tcp_hdr->recv_ack;
+ key.inner_key.src_port = tcp_hdr->src_port;
+ key.inner_key.dst_port = tcp_hdr->dst_port;
+
+ key.vxlan_hdr.vx_flags = vxlan_hdr->vx_flags;
+ key.vxlan_hdr.vx_vni = vxlan_hdr->vx_vni;
+ rte_ether_addr_copy(&(outer_eth_hdr->s_addr), &(key.outer_eth_saddr));
+ rte_ether_addr_copy(&(outer_eth_hdr->d_addr), &(key.outer_eth_daddr));
+ gro_ipv6_addr_copy(outer_ipv6_hdr->src_addr, key.outer_ip_saddr);
+ gro_ipv6_addr_copy(outer_ipv6_hdr->dst_addr, key.outer_ip_daddr);
+ key.outer_src_port = udp_hdr->src_port;
+ key.outer_dst_port = udp_hdr->dst_port;
+
+ /* Search for a matched flow. */
+ max_flow_num = tbl->max_flow_num;
+ remaining_flow_num = tbl->flow_num;
+ find = 0;
+ for (i = 0; i < max_flow_num && remaining_flow_num; i++) {
+ if (tbl->flows[i].start_index != INVALID_ARRAY_INDEX) {
+ if (is_same_vxlan6_tcp4_flow(tbl->flows[i].key, key)) {
+ find = 1;
+ break;
+ }
+ remaining_flow_num--;
+ }
+ }
+
+ /*
+ * Can't find a matched flow. Insert a new flow and store the
+ * packet into the flow.
+ */
+ if (find == 0) {
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, sent_seq,
+ ip_id, is_atomic);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ if (insert_new_flow(tbl, &key, item_idx) ==
+ INVALID_ARRAY_INDEX) {
+ /*
+ * Fail to insert a new flow, so
+ * delete the inserted packet.
+ */
+ delete_item(tbl, item_idx, INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Check all packets in the flow and try to find a neighbor. */
+ cur_idx = tbl->flows[i].start_index;
+ prev_idx = cur_idx;
+ do {
+ cmp = check_vxlan6_seq_option(&(tbl->items[cur_idx]), tcp_hdr,
+ sent_seq, ip_id, pkt->l4_len,
+ tcp_dl, is_atomic);
+ if (cmp) {
+ if (merge_two_vxlan6_tcp4_packets(
+ &(tbl->items[cur_idx]),
+ pkt, cmp, sent_seq, ip_id))
+ return 1;
+ /*
+ * Can't merge two packets, as the packet
+ * length will be greater than the max value.
+ * Insert the packet into the flow.
+ */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ sent_seq, ip_id, is_atomic) ==
+ INVALID_ARRAY_INDEX)
+ return -1;
+ return 0;
+ }
+ prev_idx = cur_idx;
+ cur_idx = tbl->items[cur_idx].inner_item.next_pkt_idx;
+ } while (cur_idx != INVALID_ARRAY_INDEX);
+
+ /* Can't find neighbor. Insert the packet into the flow. */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx, sent_seq,
+ ip_id, is_atomic)
+ == INVALID_ARRAY_INDEX)
+ return -1;
+
+ return 0;
+}
+
+uint16_t
+gro_vxlan6_tcp4_tbl_timeout_flush(struct gro_vxlan6_tcp4_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out)
+{
+ uint16_t k = 0;
+ uint32_t i, j;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++) {
+ if (unlikely(tbl->flow_num == 0))
+ return k;
+
+ j = tbl->flows[i].start_index;
+ while (j != INVALID_ARRAY_INDEX) {
+ if (tbl->items[j].inner_item.start_time <=
+ flush_timestamp) {
+ out[k++] = tbl->items[j].inner_item.firstseg;
+ if (tbl->items[j].inner_item.nb_merged > 1)
+ update_vxlan6_header(&(tbl->items[j]));
+ /*
+ * Delete the item and get the next packet
+ * index.
+ */
+ j = delete_item(tbl, j, INVALID_ARRAY_INDEX);
+ tbl->flows[i].start_index = j;
+ if (j == INVALID_ARRAY_INDEX)
+ tbl->flow_num--;
+
+ if (unlikely(k == nb_out))
+ return k;
+ } else
+ /*
+ * The left packets in the flow won't be
+ * timeout. Go to check other flows.
+ */
+ break;
+ }
+ }
+ return k;
+}
+
+uint32_t
+gro_vxlan6_tcp4_tbl_pkt_count(void *tbl)
+{
+ struct gro_vxlan6_tcp4_tbl *gro_tbl = tbl;
+
+ if (gro_tbl)
+ return gro_tbl->item_num;
+
+ return 0;
+}
diff --git a/lib/librte_gro/gro_vxlan6_tcp4.h b/lib/librte_gro/gro_vxlan6_tcp4.h
new file mode 100644
index 0000000..2516429
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan6_tcp4.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#ifndef _GRO_VXLAN6_TCP4_H_
+#define _GRO_VXLAN6_TCP4_H_
+
+#include "gro_tcp4.h"
+
+#define GRO_VXLAN6_TCP4_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/* Header fields representing a IPv6 VxLAN flow */
+struct vxlan6_tcp4_flow_key {
+ struct tcp4_flow_key inner_key;
+ struct rte_vxlan_hdr vxlan_hdr;
+
+ struct rte_ether_addr outer_eth_saddr;
+ struct rte_ether_addr outer_eth_daddr;
+
+ uint8_t outer_ip_saddr[16];
+ uint8_t outer_ip_daddr[16];
+
+ /* Outer UDP ports */
+ uint16_t outer_src_port;
+ uint16_t outer_dst_port;
+
+};
+
+struct gro_vxlan6_tcp4_flow {
+ struct vxlan6_tcp4_flow_key key;
+ /*
+ * The index of the first packet in the flow. INVALID_ARRAY_INDEX
+ * indicates an empty flow.
+ */
+ uint32_t start_index;
+};
+
+struct gro_vxlan6_tcp4_item {
+ struct gro_tcp4_item inner_item;
+};
+
+/*
+ * IPv6 VxLAN (with an outer IPv6 header and an inner TCP/IPv4 packet)
+ * reassembly table structure
+ */
+struct gro_vxlan6_tcp4_tbl {
+ /* item array */
+ struct gro_vxlan6_tcp4_item *items;
+ /* flow array */
+ struct gro_vxlan6_tcp4_flow *flows;
+ /* current item number */
+ uint32_t item_num;
+ /* current flow number */
+ uint32_t flow_num;
+ /* the maximum item number */
+ uint32_t max_item_num;
+ /* the maximum flow number */
+ uint32_t max_flow_num;
+};
+
+
+/**
+ * This function creates a IPv6 VxLAN reassembly table for IPv6 VxLAN packets
+ * which have an outer IPv6 header and an inner TCP/IPv4 packet.
+ *
+ * @param socket_id
+ * Socket index for allocating the table
+ * @param max_flow_num
+ * The maximum number of flows in the table
+ * @param max_item_per_flow
+ * The maximum number of packets per flow
+ *
+ * @return
+ * - Return the table pointer on success.
+ * - Return NULL on failure.
+ */
+void *gro_vxlan6_tcp4_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow);
+
+/**
+ * This function destroys a IPv6 VxLAN reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ */
+void gro_vxlan6_tcp4_tbl_destroy(void *tbl);
+
+/**
+ * This function merges a IPv6 VxLAN packet which has an outer IPv6 header and
+ * an inner TCP/IPv4 packet. It does not process the packet, whose TCP
+ * header has SYN, FIN, RST, PSH, CWR, ECE or URG bit set, or which
+ * does not have payload.
+ *
+ * This function doesi not check if the packet has correct checksums and
+ * does not re-calculate checksums for the merged packet. Additionally,
+ * it assumes the packets are complete (i.e., MF==0 && frag_off==0), when
+ * IP fragmentation is possible (i.e., DF==0). It returns the packet, if
+ * the packet has invalid parameters (e.g. SYN bit is set) or there is no
+ * available space in the table.
+ *
+ * @param pkt
+ * Packet to reassemble
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ * @start_time
+ * The time when the packet is inserted into the table
+ *
+ * @return
+ * - Return a positive value if the packet is merged.
+ * - Return zero if the packet isn't merged but stored in the table.
+ * - Return a negative value for invalid parameters or no available
+ * space in the table.
+ */
+int32_t gro_vxlan6_tcp4_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan6_tcp4_tbl *tbl,
+ uint64_t start_time);
+
+/**
+ * This function flushes timeout packets in the IPv6 VxLAN reassembly table,
+ * and without updating checksums.
+ *
+ * @param tbl
+ * Pointer pointing to a IPv6 VxLAN GRO table
+ * @param flush_timestamp
+ * This function flushes packets which are inserted into the table
+ * before or at the flush_timestamp.
+ * @param out
+ * Pointer array used to keep flushed packets
+ * @param nb_out
+ * The element number in 'out'. It also determines the maximum number of
+ * packets that can be flushed finally.
+ *
+ * @return
+ * The number of flushed packets
+ */
+uint16_t gro_vxlan6_tcp4_tbl_timeout_flush(struct gro_vxlan6_tcp4_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out);
+
+/**
+ * This function returns the number of the packets in a IPv6 VxLAN
+ * reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ *
+ * @return
+ * The number of packets in the table
+ */
+uint32_t gro_vxlan6_tcp4_tbl_pkt_count(void *tbl);
+#endif
diff --git a/lib/librte_gro/meson.build b/lib/librte_gro/meson.build
index 020e7e8..994ee06 100644
--- a/lib/librte_gro/meson.build
+++ b/lib/librte_gro/meson.build
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
-sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c')
+sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c')
headers = files('rte_gro.h')
deps += ['ethdev']
diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index 89fed3c..12ed3b2 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -11,6 +11,7 @@
#include "gro_tcp4.h"
#include "gro_tcp6.h"
#include "gro_udp4.h"
+#include "gro_vxlan6_tcp4.h"
#include "gro_vxlan_tcp4.h"
#include "gro_vxlan_tcp6.h"
#include "gro_vxlan_udp4.h"
@@ -24,16 +25,18 @@
static gro_tbl_create_fn tbl_create_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_create, gro_vxlan_tcp4_tbl_create,
gro_udp4_tbl_create, gro_vxlan_udp4_tbl_create,
- gro_tcp6_tbl_create, gro_vxlan_tcp6_tbl_create, NULL};
+ gro_tcp6_tbl_create, gro_vxlan_tcp6_tbl_create,
+ gro_vxlan6_tcp4_tbl_create, NULL};
static gro_tbl_destroy_fn tbl_destroy_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_destroy, gro_vxlan_tcp4_tbl_destroy,
gro_udp4_tbl_destroy, gro_vxlan_udp4_tbl_destroy,
- gro_tcp6_tbl_destroy, gro_vxlan_tcp6_tbl_destroy, NULL};
+ gro_tcp6_tbl_destroy, gro_vxlan_tcp6_tbl_destroy,
+ gro_vxlan6_tcp4_tbl_destroy, NULL};
static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_pkt_count, gro_vxlan_tcp4_tbl_pkt_count,
gro_udp4_tbl_pkt_count, gro_vxlan_udp4_tbl_pkt_count,
gro_tcp6_tbl_pkt_count, gro_vxlan_tcp6_tbl_pkt_count,
- NULL};
+ gro_vxlan6_tcp4_tbl_pkt_count, NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
@@ -86,6 +89,19 @@
((ptype & RTE_PTYPE_INNER_L3_MASK) == \
RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN)))
+#define IS_IPV6_VXLAN_TCP4_PKT(ptype) (RTE_ETH_IS_IPV6_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+ ((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
+ RTE_PTYPE_TUNNEL_VXLAN) && \
+ ((ptype & RTE_PTYPE_INNER_L4_TCP) == \
+ RTE_PTYPE_INNER_L4_TCP) && \
+ (((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV4) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV4_EXT) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
+
/*
* GRO context structure. It keeps the table structures, which are
* used to merge packets, for different GRO types. Before using
@@ -174,7 +190,7 @@ struct gro_ctx {
struct gro_udp4_flow udp_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
struct gro_udp4_item udp_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{0} };
- /* Allocate a reassembly table for VXLAN TCP GRO */
+ /* Allocate a reassembly table for IPv4 VXLAN TCP/IPv4 GRO */
struct gro_vxlan_tcp4_tbl vxlan_tcp_tbl;
struct gro_vxlan_tcp4_flow vxlan_tcp_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
struct gro_vxlan_tcp4_item vxlan_tcp_items[RTE_GRO_MAX_BURST_ITEM_NUM]
@@ -197,19 +213,28 @@ struct gro_ctx {
struct gro_vxlan_tcp6_item vxlan_tcp6_items[RTE_GRO_MAX_BURST_ITEM_NUM]
= {{{0}, 0, 0} };
+ /* Allocate a reassembly table for IPv6 VXLAN TCP/IPv4 GRO */
+ struct gro_vxlan6_tcp4_tbl vxlan6_tcp4_tbl;
+ struct gro_vxlan6_tcp4_flow
+ vxlan6_tcp4_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_vxlan6_tcp4_item
+ vxlan6_tcp4_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{{0}} };
+
struct rte_mbuf *unprocess_pkts[nb_pkts];
uint32_t item_num;
int32_t ret;
uint16_t i, unprocess_num = 0, nb_after_gro = nb_pkts;
uint8_t do_tcp4_gro = 0, do_vxlan_tcp_gro = 0, do_udp4_gro = 0,
- do_vxlan_udp_gro = 0, do_tcp6_gro = 0, do_vxlan_tcp6_gro = 0;
+ do_vxlan_udp_gro = 0, do_tcp6_gro = 0, do_vxlan_tcp6_gro = 0,
+ do_vxlan6_tcp4_gro = 0;
if (unlikely((param->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
RTE_GRO_IPV4_VXLAN_UDP_IPV4 |
RTE_GRO_UDP_IPV4 |
RTE_GRO_TCP_IPV6 |
- RTE_GRO_IPV4_VXLAN_TCP_IPV6)) == 0))
+ RTE_GRO_IPV4_VXLAN_TCP_IPV6 |
+ RTE_GRO_IPV6_VXLAN_TCP_IPV4)) == 0))
return nb_pkts;
/* Get the maximum number of packets */
@@ -295,6 +320,19 @@ struct gro_ctx {
do_vxlan_tcp6_gro = 1;
}
+ if (param->gro_types & RTE_GRO_IPV6_VXLAN_TCP_IPV4) {
+ for (i = 0; i < item_num; i++)
+ vxlan6_tcp4_flows[i].start_index = INVALID_ARRAY_INDEX;
+
+ vxlan6_tcp4_tbl.flows = vxlan6_tcp4_flows;
+ vxlan6_tcp4_tbl.items = vxlan6_tcp4_items;
+ vxlan6_tcp4_tbl.flow_num = 0;
+ vxlan6_tcp4_tbl.item_num = 0;
+ vxlan6_tcp4_tbl.max_flow_num = item_num;
+ vxlan6_tcp4_tbl.max_item_num = item_num;
+ do_vxlan6_tcp4_gro = 1;
+ }
+
for (i = 0; i < nb_pkts; i++) {
/*
* The timestamp is ignored, since all packets
@@ -351,6 +389,15 @@ struct gro_ctx {
nb_after_gro--;
else if (ret < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_VXLAN_TCP4_PKT(pkts[i]->packet_type) &&
+ do_vxlan6_tcp4_gro) {
+ ret = gro_vxlan6_tcp4_reassemble(pkts[i],
+ &vxlan6_tcp4_tbl, 0);
+ if (ret > 0)
+ /* Merge successfully */
+ nb_after_gro--;
+ else if (ret < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -390,6 +437,11 @@ struct gro_ctx {
0, &pkts[i], nb_pkts - i);
}
+ if (do_vxlan6_tcp4_gro) {
+ i += gro_vxlan6_tcp4_tbl_timeout_flush(&vxlan6_tcp4_tbl,
+ 0, &pkts[i], nb_pkts - i);
+ }
+
/* Copy unprocessed packets */
if (unprocess_num > 0) {
memcpy(&pkts[i], unprocess_pkts,
@@ -410,18 +462,19 @@ struct gro_ctx {
struct rte_mbuf *unprocess_pkts[nb_pkts];
struct gro_ctx *gro_ctx = ctx;
void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl,
- *vxlan_tcp6_tbl;
+ *vxlan_tcp6_tbl, *vxlan6_tcp4_tbl;
uint64_t current_time;
uint16_t i, unprocess_num = 0;
uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro,
- do_tcp6_gro, do_vxlan_tcp6_gro;
+ do_tcp6_gro, do_vxlan_tcp6_gro, do_vxlan6_tcp4_gro;
if (unlikely((gro_ctx->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
RTE_GRO_IPV4_VXLAN_UDP_IPV4 |
RTE_GRO_UDP_IPV4 |
RTE_GRO_TCP_IPV6 |
- RTE_GRO_IPV4_VXLAN_TCP_IPV6)) == 0))
+ RTE_GRO_IPV4_VXLAN_TCP_IPV6 |
+ RTE_GRO_IPV6_VXLAN_TCP_IPV4)) == 0))
return nb_pkts;
tcp_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV4_INDEX];
@@ -430,6 +483,7 @@ struct gro_ctx {
vxlan_udp_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_UDP_IPV4_INDEX];
tcp6_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV6_INDEX];
vxlan_tcp6_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX];
+ vxlan6_tcp4_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX];
do_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV4) ==
RTE_GRO_TCP_IPV4;
@@ -443,6 +497,8 @@ struct gro_ctx {
RTE_GRO_TCP_IPV6;
do_vxlan_tcp6_gro = (gro_ctx->gro_types & RTE_GRO_IPV4_VXLAN_TCP_IPV6)
== RTE_GRO_IPV4_VXLAN_TCP_IPV6;
+ do_vxlan6_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_IPV6_VXLAN_TCP_IPV4)
+ == RTE_GRO_IPV6_VXLAN_TCP_IPV4;
current_time = rte_rdtsc();
@@ -477,6 +533,11 @@ struct gro_ctx {
if (gro_vxlan_tcp6_reassemble(pkts[i], vxlan_tcp6_tbl,
current_time) < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_VXLAN_TCP4_PKT(pkts[i]->packet_type) &&
+ do_vxlan6_tcp4_gro) {
+ if (gro_vxlan6_tcp4_reassemble(pkts[i], vxlan6_tcp4_tbl,
+ current_time) < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -546,6 +607,13 @@ struct gro_ctx {
num += gro_vxlan_tcp6_tbl_timeout_flush(gro_ctx->tbls[
RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX],
flush_timestamp, &out[num], left_nb_out);
+ left_nb_out = max_nb_out - num;
+ }
+
+ if ((gro_types & RTE_GRO_IPV6_VXLAN_TCP_IPV4) && left_nb_out > 0) {
+ num += gro_vxlan6_tcp4_tbl_timeout_flush(gro_ctx->tbls[
+ RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX],
+ flush_timestamp, &out[num], left_nb_out);
}
return num;
diff --git a/lib/librte_gro/rte_gro.h b/lib/librte_gro/rte_gro.h
index 41a2bec..2949980 100644
--- a/lib/librte_gro/rte_gro.h
+++ b/lib/librte_gro/rte_gro.h
@@ -44,6 +44,9 @@
#define RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX 5
#define RTE_GRO_IPV4_VXLAN_TCP_IPV6 (1ULL << RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX)
/**< IPv4 VxLAN TCP/IPv6 GRO flag. */
+#define RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX 6
+#define RTE_GRO_IPV6_VXLAN_TCP_IPV4 (1ULL << RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX)
+/**< IPv6 VxLAN TCP/IPv4 GRO flag. */
/**
* Structure used to create GRO context objects or used to pass
--
1.8.3.1
^ permalink raw reply [flat|nested] 13+ messages in thread* [dpdk-dev] [PATCH v1 4/8] gro: support IPv6 VXLAN TCP/IPv6
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
` (2 preceding siblings ...)
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 3/8] gro: support IPv6 VXLAN TCP/IPv4 yang_y_yi
@ 2020-12-21 3:50 ` yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 5/8] gro: support UDP/IPv6 yang_y_yi
` (4 subsequent siblings)
8 siblings, 0 replies; 13+ messages in thread
From: yang_y_yi @ 2020-12-21 3:50 UTC (permalink / raw)
To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi
From: Yi Yang <yangyi01@inspur.com>
IPv6 VXLAN TCP/IPv6 GRO can help improve TCP/IPv6 performance
in IPv6 VXLAN use case.
With this enabled in DPDK, OVS DPDK can leverage it to improve
VM-to-VM TCP/IPv6 performance, it will merge small adjacent
IPv6 VXLAN TCP/IPv6 packets to a big IPv6 VXLAN TCP/IPv6 packet
immediate after they are received from a physical NIC. It is
very helpful in OVS DPDK IPv6 VXLAN use case.
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
.../prog_guide/generic_receive_offload_lib.rst | 2 +-
doc/guides/rel_notes/release_21_02.rst | 5 +
lib/librte_gro/gro_vxlan6_tcp6.c | 464 +++++++++++++++++++++
lib/librte_gro/gro_vxlan6_tcp6.h | 153 +++++++
lib/librte_gro/meson.build | 2 +-
lib/librte_gro/rte_gro.c | 87 +++-
lib/librte_gro/rte_gro.h | 3 +
7 files changed, 706 insertions(+), 10 deletions(-)
create mode 100644 lib/librte_gro/gro_vxlan6_tcp6.c
create mode 100644 lib/librte_gro/gro_vxlan6_tcp6.h
diff --git a/doc/guides/prog_guide/generic_receive_offload_lib.rst b/doc/guides/prog_guide/generic_receive_offload_lib.rst
index a822eaf..0efade3 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -33,7 +33,7 @@ fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
Currently, the GRO library provides GRO supports for TCP/IPv4, UDP/IPv4,
and TCP/IPv6 packets as well as VxLAN packets which contain an outer IPv4
header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6 packet or an outer IPv6
-header and an inner TCP/IPv4 packet.
+header and an inner TCP/IPv4 or TCP/IPv6 packet.
Two Sets of API
---------------
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index 3b98915..a5bc2f1 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -70,6 +70,11 @@ New Features
Added TCP/IPv4 GRO support for IPv6 VXLAN packets, this enabled TCP/IPv4
GRO support for IPv6 VXLAN use case.
+* **Added TCP/IPv6 GRO support for IPv6 VXLAN packets.**
+
+ Added TCP/IPv6 GRO support for IPv6 VXLAN packets, this enabled TCP/IPv6
+ GRO support for IPv6 VXLAN use case.
+
Removed Items
-------------
diff --git a/lib/librte_gro/gro_vxlan6_tcp6.c b/lib/librte_gro/gro_vxlan6_tcp6.c
new file mode 100644
index 0000000..5b9dee4
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan6_tcp6.c
@@ -0,0 +1,464 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_udp.h>
+
+#include "gro_vxlan6_tcp6.h"
+
+void *
+gro_vxlan6_tcp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow)
+{
+ struct gro_vxlan6_tcp6_tbl *tbl;
+ size_t size;
+ uint32_t entries_num, i;
+
+ entries_num = max_flow_num * max_item_per_flow;
+ entries_num = RTE_MIN(entries_num, GRO_VXLAN6_TCP6_TBL_MAX_ITEM_NUM);
+
+ if (entries_num == 0)
+ return NULL;
+
+ tbl = rte_zmalloc_socket(__func__,
+ sizeof(struct gro_vxlan6_tcp6_tbl),
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl == NULL)
+ return NULL;
+
+ size = sizeof(struct gro_vxlan6_tcp6_item) * entries_num;
+ tbl->items = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->items == NULL) {
+ rte_free(tbl);
+ return NULL;
+ }
+ tbl->max_item_num = entries_num;
+
+ size = sizeof(struct gro_vxlan6_tcp6_flow) * entries_num;
+ tbl->flows = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->flows == NULL) {
+ rte_free(tbl->items);
+ rte_free(tbl);
+ return NULL;
+ }
+
+ for (i = 0; i < entries_num; i++)
+ tbl->flows[i].start_index = INVALID_ARRAY_INDEX;
+ tbl->max_flow_num = entries_num;
+
+ return tbl;
+}
+
+void
+gro_vxlan6_tcp6_tbl_destroy(void *tbl)
+{
+ struct gro_vxlan6_tcp6_tbl *vxlan6_tbl = tbl;
+
+ if (vxlan6_tbl) {
+ rte_free(vxlan6_tbl->items);
+ rte_free(vxlan6_tbl->flows);
+ }
+ rte_free(vxlan6_tbl);
+}
+
+static inline uint32_t
+find_an_empty_item(struct gro_vxlan6_tcp6_tbl *tbl)
+{
+ uint32_t max_item_num = tbl->max_item_num, i;
+
+ for (i = 0; i < max_item_num; i++)
+ if (tbl->items[i].inner_item.firstseg == NULL)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+find_an_empty_flow(struct gro_vxlan6_tcp6_tbl *tbl)
+{
+ uint32_t max_flow_num = tbl->max_flow_num, i;
+
+ for (i = 0; i < max_flow_num; i++)
+ if (tbl->flows[i].start_index == INVALID_ARRAY_INDEX)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+insert_new_item(struct gro_vxlan6_tcp6_tbl *tbl,
+ struct rte_mbuf *pkt,
+ uint64_t start_time,
+ uint32_t prev_idx,
+ uint32_t sent_seq)
+{
+ uint32_t item_idx;
+
+ item_idx = find_an_empty_item(tbl);
+ if (unlikely(item_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ tbl->items[item_idx].inner_item.firstseg = pkt;
+ tbl->items[item_idx].inner_item.lastseg = rte_pktmbuf_lastseg(pkt);
+ tbl->items[item_idx].inner_item.start_time = start_time;
+ tbl->items[item_idx].inner_item.next_pkt_idx = INVALID_ARRAY_INDEX;
+ tbl->items[item_idx].inner_item.sent_seq = sent_seq;
+ tbl->items[item_idx].inner_item.nb_merged = 1;
+ tbl->item_num++;
+
+ /* If the previous packet exists, chain the new one with it. */
+ if (prev_idx != INVALID_ARRAY_INDEX) {
+ tbl->items[item_idx].inner_item.next_pkt_idx =
+ tbl->items[prev_idx].inner_item.next_pkt_idx;
+ tbl->items[prev_idx].inner_item.next_pkt_idx = item_idx;
+ }
+
+ return item_idx;
+}
+
+static inline uint32_t
+delete_item(struct gro_vxlan6_tcp6_tbl *tbl,
+ uint32_t item_idx,
+ uint32_t prev_item_idx)
+{
+ uint32_t next_idx = tbl->items[item_idx].inner_item.next_pkt_idx;
+
+ /* NULL indicates an empty item. */
+ tbl->items[item_idx].inner_item.firstseg = NULL;
+ tbl->item_num--;
+ if (prev_item_idx != INVALID_ARRAY_INDEX)
+ tbl->items[prev_item_idx].inner_item.next_pkt_idx = next_idx;
+
+ return next_idx;
+}
+
+static inline uint32_t
+insert_new_flow(struct gro_vxlan6_tcp6_tbl *tbl,
+ struct vxlan6_tcp6_flow_key *src,
+ uint32_t item_idx)
+{
+ struct vxlan6_tcp6_flow_key *dst;
+ uint32_t flow_idx;
+
+ flow_idx = find_an_empty_flow(tbl);
+ if (unlikely(flow_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ dst = &(tbl->flows[flow_idx].key);
+
+ rte_ether_addr_copy(&(src->inner_key.eth_saddr),
+ &(dst->inner_key.eth_saddr));
+ rte_ether_addr_copy(&(src->inner_key.eth_daddr),
+ &(dst->inner_key.eth_daddr));
+ gro_ipv6_addr_copy(src->inner_key.ip_saddr, dst->inner_key.ip_saddr);
+ gro_ipv6_addr_copy(src->inner_key.ip_daddr, dst->inner_key.ip_daddr);
+ dst->inner_key.recv_ack = src->inner_key.recv_ack;
+ dst->inner_key.src_port = src->inner_key.src_port;
+ dst->inner_key.dst_port = src->inner_key.dst_port;
+
+ dst->vxlan_hdr.vx_flags = src->vxlan_hdr.vx_flags;
+ dst->vxlan_hdr.vx_vni = src->vxlan_hdr.vx_vni;
+ rte_ether_addr_copy(&(src->outer_eth_saddr), &(dst->outer_eth_saddr));
+ rte_ether_addr_copy(&(src->outer_eth_daddr), &(dst->outer_eth_daddr));
+ gro_ipv6_addr_copy(src->outer_ip_saddr, dst->outer_ip_saddr);
+ gro_ipv6_addr_copy(src->outer_ip_daddr, dst->outer_ip_daddr);
+ dst->outer_src_port = src->outer_src_port;
+ dst->outer_dst_port = src->outer_dst_port;
+
+ tbl->flows[flow_idx].start_index = item_idx;
+ tbl->flow_num++;
+
+ return flow_idx;
+}
+
+static inline int
+is_same_vxlan6_tcp6_flow(struct vxlan6_tcp6_flow_key k1,
+ struct vxlan6_tcp6_flow_key k2)
+{
+ return (rte_is_same_ether_addr(&k1.outer_eth_saddr,
+ &k2.outer_eth_saddr) &&
+ rte_is_same_ether_addr(&k1.outer_eth_daddr,
+ &k2.outer_eth_daddr) &&
+ rte_is_same_ipv6_addr(k1.outer_ip_saddr,
+ k2.outer_ip_saddr) &&
+ rte_is_same_ipv6_addr(k1.outer_ip_daddr,
+ k2.outer_ip_daddr) &&
+ (k1.outer_src_port == k2.outer_src_port) &&
+ (k1.outer_dst_port == k2.outer_dst_port) &&
+ (k1.vxlan_hdr.vx_flags == k2.vxlan_hdr.vx_flags) &&
+ (k1.vxlan_hdr.vx_vni == k2.vxlan_hdr.vx_vni) &&
+ is_same_tcp6_flow(k1.inner_key, k2.inner_key));
+}
+
+static inline int
+check_vxlan_seq_option_v6(struct gro_vxlan6_tcp6_item *item,
+ struct rte_tcp_hdr *tcp_hdr,
+ uint32_t sent_seq,
+ uint16_t tcp_hl,
+ uint16_t tcp_dl)
+{
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ int cmp;
+ uint16_t l2_offset;
+
+ l2_offset = pkt->outer_l2_len + pkt->outer_l3_len;
+ cmp = check_seq_option_v6(&item->inner_item, tcp_hdr, sent_seq,
+ tcp_hl, tcp_dl, l2_offset);
+ if (cmp > 0)
+ /* Append the new packet. */
+ return 1;
+ else if (cmp < 0)
+ /* Prepend the new packet. */
+ return -1;
+
+ return 0;
+}
+
+static inline int
+merge_two_vxlan6_tcp6_packets(struct gro_vxlan6_tcp6_item *item,
+ struct rte_mbuf *pkt,
+ int cmp,
+ uint32_t sent_seq)
+{
+ if (merge_two_tcp6_packets(&item->inner_item, pkt, cmp, sent_seq,
+ pkt->outer_l2_len +
+ pkt->outer_l3_len))
+ return 1;
+
+ return 0;
+}
+
+static inline void
+update_vxlan6_header(struct gro_vxlan6_tcp6_item *item)
+{
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ uint16_t len;
+
+ /* Update the outer IPv6 header. */
+ len = pkt->pkt_len - pkt->outer_l2_len;
+ ipv6_hdr = (struct rte_ipv6_hdr *)(rte_pktmbuf_mtod(pkt, char *) +
+ pkt->outer_l2_len);
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(len - pkt->outer_l3_len);
+
+ /* Update the outer UDP header. */
+ len -= pkt->outer_l3_len;
+ udp_hdr = (struct rte_udp_hdr *)((char *)ipv6_hdr + pkt->outer_l3_len);
+ udp_hdr->dgram_len = rte_cpu_to_be_16(len);
+
+ /* Update the inner IPv6 header. */
+ len -= pkt->l2_len;
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)udp_hdr + pkt->l2_len);
+ /* IPv6 payload_len does not include IPv6 header. */
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(len - pkt->l3_len);
+}
+
+int32_t
+gro_vxlan6_tcp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan6_tcp6_tbl *tbl,
+ uint64_t start_time)
+{
+ struct rte_ether_hdr *outer_eth_hdr, *eth_hdr;
+ struct rte_ipv6_hdr *outer_ipv6_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_tcp_hdr *tcp_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_vxlan_hdr *vxlan_hdr;
+ uint32_t sent_seq;
+ int32_t tcp_dl;
+
+ struct vxlan6_tcp6_flow_key key;
+ uint32_t cur_idx, prev_idx, item_idx;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ int cmp;
+ uint16_t hdr_len;
+ uint8_t find;
+
+ /*
+ * Don't process the packet whose TCP header length is greater
+ * than 60 bytes or less than 20 bytes.
+ */
+ if (unlikely(INVALID_TCP_HDRLEN(pkt->l4_len)))
+ return -1;
+
+ outer_eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ outer_ipv6_hdr = (struct rte_ipv6_hdr *)((char *)outer_eth_hdr +
+ pkt->outer_l2_len);
+ udp_hdr = (struct rte_udp_hdr *)((char *)outer_ipv6_hdr +
+ pkt->outer_l3_len);
+ vxlan_hdr = (struct rte_vxlan_hdr *)((char *)udp_hdr +
+ sizeof(struct rte_udp_hdr));
+ eth_hdr = (struct rte_ether_hdr *)((char *)vxlan_hdr +
+ sizeof(struct rte_vxlan_hdr));
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)udp_hdr + pkt->l2_len);
+ tcp_hdr = (struct rte_tcp_hdr *)((char *)ipv6_hdr + pkt->l3_len);
+
+ /*
+ * Don't process the packet which has FIN, SYN, RST, PSH, URG,
+ * ECE or CWR set.
+ */
+ if (tcp_hdr->tcp_flags != RTE_TCP_ACK_FLAG)
+ return -1;
+
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len + pkt->l4_len;
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ if (pkt->pkt_len <= hdr_len)
+ return -1;
+ tcp_dl = pkt->pkt_len - hdr_len;
+
+ sent_seq = rte_be_to_cpu_32(tcp_hdr->sent_seq);
+
+ rte_ether_addr_copy(&(eth_hdr->s_addr), &(key.inner_key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->d_addr), &(key.inner_key.eth_daddr));
+ gro_ipv6_addr_copy(ipv6_hdr->src_addr, key.inner_key.ip_saddr);
+ gro_ipv6_addr_copy(ipv6_hdr->dst_addr, key.inner_key.ip_daddr);
+ key.inner_key.recv_ack = tcp_hdr->recv_ack;
+ key.inner_key.src_port = tcp_hdr->src_port;
+ key.inner_key.dst_port = tcp_hdr->dst_port;
+
+ key.vxlan_hdr.vx_flags = vxlan_hdr->vx_flags;
+ key.vxlan_hdr.vx_vni = vxlan_hdr->vx_vni;
+ rte_ether_addr_copy(&(outer_eth_hdr->s_addr), &(key.outer_eth_saddr));
+ rte_ether_addr_copy(&(outer_eth_hdr->d_addr), &(key.outer_eth_daddr));
+ gro_ipv6_addr_copy(outer_ipv6_hdr->src_addr, key.outer_ip_saddr);
+ gro_ipv6_addr_copy(outer_ipv6_hdr->dst_addr, key.outer_ip_daddr);
+ key.outer_src_port = udp_hdr->src_port;
+ key.outer_dst_port = udp_hdr->dst_port;
+
+ /* Search for a matched flow. */
+ max_flow_num = tbl->max_flow_num;
+ remaining_flow_num = tbl->flow_num;
+ find = 0;
+ for (i = 0; i < max_flow_num && remaining_flow_num; i++) {
+ if (tbl->flows[i].start_index != INVALID_ARRAY_INDEX) {
+ if (is_same_vxlan6_tcp6_flow(tbl->flows[i].key, key)) {
+ find = 1;
+ break;
+ }
+ remaining_flow_num--;
+ }
+ }
+
+ /*
+ * Can't find a matched flow. Insert a new flow and store the
+ * packet into the flow.
+ */
+ if (find == 0) {
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, sent_seq);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ if (insert_new_flow(tbl, &key, item_idx) ==
+ INVALID_ARRAY_INDEX) {
+ /*
+ * Fail to insert a new flow, so
+ * delete the inserted packet.
+ */
+ delete_item(tbl, item_idx, INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Check all packets in the flow and try to find a neighbor. */
+ cur_idx = tbl->flows[i].start_index;
+ prev_idx = cur_idx;
+ do {
+ cmp = check_vxlan_seq_option_v6(&(tbl->items[cur_idx]), tcp_hdr,
+ sent_seq, pkt->l4_len, tcp_dl);
+ if (cmp) {
+ if (merge_two_vxlan6_tcp6_packets(
+ &(tbl->items[cur_idx]),
+ pkt, cmp, sent_seq))
+ return 1;
+ /*
+ * Can't merge two packets, as the packet
+ * length will be greater than the max value.
+ * Insert the packet into the flow.
+ */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ sent_seq) ==
+ INVALID_ARRAY_INDEX)
+ return -1;
+ return 0;
+ }
+ prev_idx = cur_idx;
+ cur_idx = tbl->items[cur_idx].inner_item.next_pkt_idx;
+ } while (cur_idx != INVALID_ARRAY_INDEX);
+
+ /* Can't find neighbor. Insert the packet into the flow. */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx, sent_seq
+ ) == INVALID_ARRAY_INDEX)
+ return -1;
+
+ return 0;
+}
+
+uint16_t
+gro_vxlan6_tcp6_tbl_timeout_flush(struct gro_vxlan6_tcp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out)
+{
+ uint16_t k = 0;
+ uint32_t i, j;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++) {
+ if (unlikely(tbl->flow_num == 0))
+ return k;
+
+ j = tbl->flows[i].start_index;
+ while (j != INVALID_ARRAY_INDEX) {
+ if (tbl->items[j].inner_item.start_time <=
+ flush_timestamp) {
+ out[k++] = tbl->items[j].inner_item.firstseg;
+ if (tbl->items[j].inner_item.nb_merged > 1)
+ update_vxlan6_header(&(tbl->items[j]));
+ /*
+ * Delete the item and get the next packet
+ * index.
+ */
+ j = delete_item(tbl, j, INVALID_ARRAY_INDEX);
+ tbl->flows[i].start_index = j;
+ if (j == INVALID_ARRAY_INDEX)
+ tbl->flow_num--;
+
+ if (unlikely(k == nb_out))
+ return k;
+ } else
+ /*
+ * The left packets in the flow won't be
+ * timeout. Go to check other flows.
+ */
+ break;
+ }
+ }
+ return k;
+}
+
+uint32_t
+gro_vxlan6_tcp6_tbl_pkt_count(void *tbl)
+{
+ struct gro_vxlan6_tcp6_tbl *gro_tbl = tbl;
+
+ if (gro_tbl)
+ return gro_tbl->item_num;
+
+ return 0;
+}
diff --git a/lib/librte_gro/gro_vxlan6_tcp6.h b/lib/librte_gro/gro_vxlan6_tcp6.h
new file mode 100644
index 0000000..0659ae4
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan6_tcp6.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#ifndef _GRO_VXLAN6_TCP6_H_
+#define _GRO_VXLAN6_TCP6_H_
+
+#include "gro_tcp6.h"
+
+#define GRO_VXLAN6_TCP6_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/* Header fields representing a IPv6 VxLAN flow */
+struct vxlan6_tcp6_flow_key {
+ struct tcp6_flow_key inner_key;
+ struct rte_vxlan_hdr vxlan_hdr;
+
+ struct rte_ether_addr outer_eth_saddr;
+ struct rte_ether_addr outer_eth_daddr;
+
+ uint8_t outer_ip_saddr[16];
+ uint8_t outer_ip_daddr[16];
+
+ /* Outer UDP ports */
+ uint16_t outer_src_port;
+ uint16_t outer_dst_port;
+
+};
+
+struct gro_vxlan6_tcp6_flow {
+ struct vxlan6_tcp6_flow_key key;
+ /*
+ * The index of the first packet in the flow. INVALID_ARRAY_INDEX
+ * indicates an empty flow.
+ */
+ uint32_t start_index;
+};
+
+struct gro_vxlan6_tcp6_item {
+ struct gro_tcp6_item inner_item;
+};
+
+/*
+ * IPv6 VxLAN (with an outer IPv6 header and an inner TCP/IPv6 packet)
+ * reassembly table structure
+ */
+struct gro_vxlan6_tcp6_tbl {
+ /* item array */
+ struct gro_vxlan6_tcp6_item *items;
+ /* flow array */
+ struct gro_vxlan6_tcp6_flow *flows;
+ /* current item number */
+ uint32_t item_num;
+ /* current flow number */
+ uint32_t flow_num;
+ /* the maximum item number */
+ uint32_t max_item_num;
+ /* the maximum flow number */
+ uint32_t max_flow_num;
+};
+
+
+/**
+ * This function creates a IPv6 VxLAN reassembly table for IPv6 VxLAN packets
+ * which have an outer IPv6 header and an inner TCP/IPv6 packet.
+ *
+ * @param socket_id
+ * Socket index for allocating the table
+ * @param max_flow_num
+ * The maximum number of flows in the table
+ * @param max_item_per_flow
+ * The maximum number of packets per flow
+ *
+ * @return
+ * - Return the table pointer on success.
+ * - Return NULL on failure.
+ */
+void *gro_vxlan6_tcp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow);
+
+/**
+ * This function destroys a IPv6 VxLAN reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ */
+void gro_vxlan6_tcp6_tbl_destroy(void *tbl);
+
+/**
+ * This function merges a IPv6 VxLAN packet which has an outer IPv6 header and
+ * an inner TCP/IPv6 packet. It does not process the packet, whose TCP
+ * header has SYN, FIN, RST, PSH, CWR, ECE or URG bit set, or which
+ * does not have payload.
+ *
+ * This function does not check if the packet has correct checksums and
+ * does not re-calculate checksums for the merged packet. Additionally,
+ * it assumes the packets are complete (i.e., MF==0 && frag_off==0), when
+ * IP fragmentation is possible (i.e., DF==0). It returns the packet, if
+ * the packet has invalid parameters (e.g. SYN bit is set) or there is no
+ * available space in the table.
+ *
+ * @param pkt
+ * Packet to reassemble
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ * @start_time
+ * The time when the packet is inserted into the table
+ *
+ * @return
+ * - Return a positive value if the packet is merged.
+ * - Return zero if the packet isn't merged but stored in the table.
+ * - Return a negative value for invalid parameters or no available
+ * space in the table.
+ */
+int32_t gro_vxlan6_tcp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan6_tcp6_tbl *tbl,
+ uint64_t start_time);
+
+/**
+ * This function flushes timeout packets in the IPv6 VxLAN reassembly table,
+ * and without updating checksums.
+ *
+ * @param tbl
+ * Pointer pointing to a IPv6 VxLAN GRO table
+ * @param flush_timestamp
+ * This function flushes packets which are inserted into the table
+ * before or at the flush_timestamp.
+ * @param out
+ * Pointer array used to keep flushed packets
+ * @param nb_out
+ * The element number in 'out'. It also determines the maximum number of
+ * packets that can be flushed finally.
+ *
+ * @return
+ * The number of flushed packets
+ */
+uint16_t gro_vxlan6_tcp6_tbl_timeout_flush(struct gro_vxlan6_tcp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out);
+
+/**
+ * This function returns the number of the packets in a IPv6 VxLAN
+ * reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ *
+ * @return
+ * The number of packets in the table
+ */
+uint32_t gro_vxlan6_tcp6_tbl_pkt_count(void *tbl);
+#endif
diff --git a/lib/librte_gro/meson.build b/lib/librte_gro/meson.build
index 994ee06..3eff89c 100644
--- a/lib/librte_gro/meson.build
+++ b/lib/librte_gro/meson.build
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
-sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c')
+sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c')
headers = files('rte_gro.h')
deps += ['ethdev']
diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index 12ed3b2..0c5584e 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -12,6 +12,7 @@
#include "gro_tcp6.h"
#include "gro_udp4.h"
#include "gro_vxlan6_tcp4.h"
+#include "gro_vxlan6_tcp6.h"
#include "gro_vxlan_tcp4.h"
#include "gro_vxlan_tcp6.h"
#include "gro_vxlan_udp4.h"
@@ -26,17 +27,22 @@
gro_tcp4_tbl_create, gro_vxlan_tcp4_tbl_create,
gro_udp4_tbl_create, gro_vxlan_udp4_tbl_create,
gro_tcp6_tbl_create, gro_vxlan_tcp6_tbl_create,
- gro_vxlan6_tcp4_tbl_create, NULL};
+ gro_vxlan6_tcp4_tbl_create, gro_vxlan6_tcp6_tbl_create,
+ NULL};
static gro_tbl_destroy_fn tbl_destroy_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_destroy, gro_vxlan_tcp4_tbl_destroy,
gro_udp4_tbl_destroy, gro_vxlan_udp4_tbl_destroy,
gro_tcp6_tbl_destroy, gro_vxlan_tcp6_tbl_destroy,
- gro_vxlan6_tcp4_tbl_destroy, NULL};
+ gro_vxlan6_tcp4_tbl_destroy,
+ gro_vxlan6_tcp6_tbl_destroy,
+ NULL};
static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_pkt_count, gro_vxlan_tcp4_tbl_pkt_count,
gro_udp4_tbl_pkt_count, gro_vxlan_udp4_tbl_pkt_count,
gro_tcp6_tbl_pkt_count, gro_vxlan_tcp6_tbl_pkt_count,
- gro_vxlan6_tcp4_tbl_pkt_count, NULL};
+ gro_vxlan6_tcp4_tbl_pkt_count,
+ gro_vxlan6_tcp6_tbl_pkt_count,
+ NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
@@ -102,6 +108,19 @@
((ptype & RTE_PTYPE_INNER_L3_MASK) == \
RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
+#define IS_IPV6_VXLAN_TCP6_PKT(ptype) (RTE_ETH_IS_IPV6_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+ ((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
+ RTE_PTYPE_TUNNEL_VXLAN) && \
+ ((ptype & RTE_PTYPE_INNER_L4_TCP) == \
+ RTE_PTYPE_INNER_L4_TCP) && \
+ (((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6_EXT) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN)))
+
/*
* GRO context structure. It keeps the table structures, which are
* used to merge packets, for different GRO types. Before using
@@ -220,13 +239,20 @@ struct gro_ctx {
struct gro_vxlan6_tcp4_item
vxlan6_tcp4_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{{0}} };
+ /* Allocate a reassembly table for IPv6 VXLAN TCP/IPv6 GRO */
+ struct gro_vxlan6_tcp6_tbl vxlan6_tcp6_tbl;
+ struct gro_vxlan6_tcp6_flow
+ vxlan6_tcp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_vxlan6_tcp6_item
+ vxlan6_tcp6_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{{0}} };
+
struct rte_mbuf *unprocess_pkts[nb_pkts];
uint32_t item_num;
int32_t ret;
uint16_t i, unprocess_num = 0, nb_after_gro = nb_pkts;
uint8_t do_tcp4_gro = 0, do_vxlan_tcp_gro = 0, do_udp4_gro = 0,
do_vxlan_udp_gro = 0, do_tcp6_gro = 0, do_vxlan_tcp6_gro = 0,
- do_vxlan6_tcp4_gro = 0;
+ do_vxlan6_tcp4_gro = 0, do_vxlan6_tcp6_gro = 0;
if (unlikely((param->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -234,7 +260,8 @@ struct gro_ctx {
RTE_GRO_UDP_IPV4 |
RTE_GRO_TCP_IPV6 |
RTE_GRO_IPV4_VXLAN_TCP_IPV6 |
- RTE_GRO_IPV6_VXLAN_TCP_IPV4)) == 0))
+ RTE_GRO_IPV6_VXLAN_TCP_IPV4 |
+ RTE_GRO_IPV6_VXLAN_TCP_IPV6)) == 0))
return nb_pkts;
/* Get the maximum number of packets */
@@ -333,6 +360,19 @@ struct gro_ctx {
do_vxlan6_tcp4_gro = 1;
}
+ if (param->gro_types & RTE_GRO_IPV6_VXLAN_TCP_IPV6) {
+ for (i = 0; i < item_num; i++)
+ vxlan6_tcp6_flows[i].start_index = INVALID_ARRAY_INDEX;
+
+ vxlan6_tcp6_tbl.flows = vxlan6_tcp6_flows;
+ vxlan6_tcp6_tbl.items = vxlan6_tcp6_items;
+ vxlan6_tcp6_tbl.flow_num = 0;
+ vxlan6_tcp6_tbl.item_num = 0;
+ vxlan6_tcp6_tbl.max_flow_num = item_num;
+ vxlan6_tcp6_tbl.max_item_num = item_num;
+ do_vxlan6_tcp6_gro = 1;
+ }
+
for (i = 0; i < nb_pkts; i++) {
/*
* The timestamp is ignored, since all packets
@@ -398,6 +438,15 @@ struct gro_ctx {
nb_after_gro--;
else if (ret < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_VXLAN_TCP6_PKT(pkts[i]->packet_type) &&
+ do_vxlan6_tcp6_gro) {
+ ret = gro_vxlan6_tcp6_reassemble(pkts[i],
+ &vxlan6_tcp6_tbl, 0);
+ if (ret > 0)
+ /* Merge successfully */
+ nb_after_gro--;
+ else if (ret < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -442,6 +491,11 @@ struct gro_ctx {
0, &pkts[i], nb_pkts - i);
}
+ if (do_vxlan6_tcp6_gro) {
+ i += gro_vxlan6_tcp6_tbl_timeout_flush(&vxlan6_tcp6_tbl,
+ 0, &pkts[i], nb_pkts - i);
+ }
+
/* Copy unprocessed packets */
if (unprocess_num > 0) {
memcpy(&pkts[i], unprocess_pkts,
@@ -462,11 +516,12 @@ struct gro_ctx {
struct rte_mbuf *unprocess_pkts[nb_pkts];
struct gro_ctx *gro_ctx = ctx;
void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl,
- *vxlan_tcp6_tbl, *vxlan6_tcp4_tbl;
+ *vxlan_tcp6_tbl, *vxlan6_tcp4_tbl, *vxlan6_tcp6_tbl;
uint64_t current_time;
uint16_t i, unprocess_num = 0;
uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro,
- do_tcp6_gro, do_vxlan_tcp6_gro, do_vxlan6_tcp4_gro;
+ do_tcp6_gro, do_vxlan_tcp6_gro, do_vxlan6_tcp4_gro,
+ do_vxlan6_tcp6_gro;
if (unlikely((gro_ctx->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -474,7 +529,8 @@ struct gro_ctx {
RTE_GRO_UDP_IPV4 |
RTE_GRO_TCP_IPV6 |
RTE_GRO_IPV4_VXLAN_TCP_IPV6 |
- RTE_GRO_IPV6_VXLAN_TCP_IPV4)) == 0))
+ RTE_GRO_IPV6_VXLAN_TCP_IPV4 |
+ RTE_GRO_IPV6_VXLAN_TCP_IPV6)) == 0))
return nb_pkts;
tcp_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV4_INDEX];
@@ -484,6 +540,7 @@ struct gro_ctx {
tcp6_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV6_INDEX];
vxlan_tcp6_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX];
vxlan6_tcp4_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX];
+ vxlan6_tcp6_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX];
do_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV4) ==
RTE_GRO_TCP_IPV4;
@@ -499,6 +556,8 @@ struct gro_ctx {
== RTE_GRO_IPV4_VXLAN_TCP_IPV6;
do_vxlan6_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_IPV6_VXLAN_TCP_IPV4)
== RTE_GRO_IPV6_VXLAN_TCP_IPV4;
+ do_vxlan6_tcp6_gro = (gro_ctx->gro_types & RTE_GRO_IPV6_VXLAN_TCP_IPV6)
+ == RTE_GRO_IPV6_VXLAN_TCP_IPV6;
current_time = rte_rdtsc();
@@ -538,6 +597,11 @@ struct gro_ctx {
if (gro_vxlan6_tcp4_reassemble(pkts[i], vxlan6_tcp4_tbl,
current_time) < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_VXLAN_TCP6_PKT(pkts[i]->packet_type) &&
+ do_vxlan6_tcp6_gro) {
+ if (gro_vxlan6_tcp6_reassemble(pkts[i], vxlan6_tcp6_tbl,
+ current_time) < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -614,6 +678,13 @@ struct gro_ctx {
num += gro_vxlan6_tcp4_tbl_timeout_flush(gro_ctx->tbls[
RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX],
flush_timestamp, &out[num], left_nb_out);
+ left_nb_out = max_nb_out - num;
+ }
+
+ if ((gro_types & RTE_GRO_IPV6_VXLAN_TCP_IPV6) && left_nb_out > 0) {
+ num += gro_vxlan6_tcp6_tbl_timeout_flush(gro_ctx->tbls[
+ RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX],
+ flush_timestamp, &out[num], left_nb_out);
}
return num;
diff --git a/lib/librte_gro/rte_gro.h b/lib/librte_gro/rte_gro.h
index 2949980..cb0895f 100644
--- a/lib/librte_gro/rte_gro.h
+++ b/lib/librte_gro/rte_gro.h
@@ -47,6 +47,9 @@
#define RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX 6
#define RTE_GRO_IPV6_VXLAN_TCP_IPV4 (1ULL << RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX)
/**< IPv6 VxLAN TCP/IPv4 GRO flag. */
+#define RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX 7
+#define RTE_GRO_IPV6_VXLAN_TCP_IPV6 (1ULL << RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX)
+/**< IPv6 VxLAN TCP/IPv6 GRO flag. */
/**
* Structure used to create GRO context objects or used to pass
--
1.8.3.1
^ permalink raw reply [flat|nested] 13+ messages in thread* [dpdk-dev] [PATCH v1 5/8] gro: support UDP/IPv6
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
` (3 preceding siblings ...)
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 4/8] gro: support IPv6 VXLAN TCP/IPv6 yang_y_yi
@ 2020-12-21 3:50 ` yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 6/8] gro: support IPv4 VXLAN UDP/IPv6 yang_y_yi
` (3 subsequent siblings)
8 siblings, 0 replies; 13+ messages in thread
From: yang_y_yi @ 2020-12-21 3:50 UTC (permalink / raw)
To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi
From: Yi Yang <yangyi01@inspur.com>
UDP/IPv6 GRO can help improve UDP/IPv6 performance.
With this enabled in DPDK, OVS DPDK can leverage it
to improve VM-to-VM UDP/IPv6 performance, it will merge
small adjacent UDP/IPv6 fragments to a big UDP/IPv6 packet
immediate after they are received from a physical NIC. It
is very helpful in OVS DPDK VLAN use case.
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
.../prog_guide/generic_receive_offload_lib.rst | 6 +-
doc/guides/rel_notes/release_21_02.rst | 5 +
lib/librte_gro/gro_udp6.c | 487 +++++++++++++++++++++
lib/librte_gro/gro_udp6.h | 284 ++++++++++++
lib/librte_gro/meson.build | 2 +-
lib/librte_gro/rte_gro.c | 72 ++-
lib/librte_gro/rte_gro.h | 3 +
7 files changed, 847 insertions(+), 12 deletions(-)
create mode 100644 lib/librte_gro/gro_udp6.c
create mode 100644 lib/librte_gro/gro_udp6.h
diff --git a/doc/guides/prog_guide/generic_receive_offload_lib.rst b/doc/guides/prog_guide/generic_receive_offload_lib.rst
index 0efade3..0ea3076 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -31,9 +31,9 @@ fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
6864 to process the IPv4 ID field.
Currently, the GRO library provides GRO supports for TCP/IPv4, UDP/IPv4,
-and TCP/IPv6 packets as well as VxLAN packets which contain an outer IPv4
-header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6 packet or an outer IPv6
-header and an inner TCP/IPv4 or TCP/IPv6 packet.
+UDP/IPv6, and TCP/IPv6 packets as well as VxLAN packets which contain an
+outer IPv4 header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6 packet or
+an outer IPv6 header and an inner TCP/IPv4 or TCP/IPv6 packet.
Two Sets of API
---------------
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index a5bc2f1..d8974b7 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -75,6 +75,11 @@ New Features
Added TCP/IPv6 GRO support for IPv6 VXLAN packets, this enabled TCP/IPv6
GRO support for IPv6 VXLAN use case.
+* **Added UDP/IPv6 GRO support for non-VXLAN packets.**
+
+ Added UDP/IPv6 GRO support for non-VXLAN packets, this enabled UDP/IPv6
+ GRO support for IPv6 VLAN use case.
+
Removed Items
-------------
diff --git a/lib/librte_gro/gro_udp6.c b/lib/librte_gro/gro_udp6.c
new file mode 100644
index 0000000..193cf2e
--- /dev/null
+++ b/lib/librte_gro/gro_udp6.c
@@ -0,0 +1,487 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_ip.h>
+
+#include "gro_udp6.h"
+
+void *
+gro_udp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow)
+{
+ struct gro_udp6_tbl *tbl;
+ size_t size;
+ uint32_t entries_num, i;
+
+ entries_num = max_flow_num * max_item_per_flow;
+ entries_num = RTE_MIN(entries_num, GRO_UDP6_TBL_MAX_ITEM_NUM);
+
+ if (entries_num == 0)
+ return NULL;
+
+ tbl = rte_zmalloc_socket(__func__,
+ sizeof(struct gro_udp6_tbl),
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl == NULL)
+ return NULL;
+
+ size = sizeof(struct gro_udp6_item) * entries_num;
+ tbl->items = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->items == NULL) {
+ rte_free(tbl);
+ return NULL;
+ }
+ tbl->max_item_num = entries_num;
+
+ size = sizeof(struct gro_udp6_flow) * entries_num;
+ tbl->flows = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->flows == NULL) {
+ rte_free(tbl->items);
+ rte_free(tbl);
+ return NULL;
+ }
+ /* INVALID_ARRAY_INDEX indicates an empty flow */
+ for (i = 0; i < entries_num; i++)
+ tbl->flows[i].start_index = INVALID_ARRAY_INDEX;
+ tbl->max_flow_num = entries_num;
+
+ return tbl;
+}
+
+void
+gro_udp6_tbl_destroy(void *tbl)
+{
+ struct gro_udp6_tbl *udp6_tbl = tbl;
+
+ if (udp6_tbl) {
+ rte_free(udp6_tbl->items);
+ rte_free(udp6_tbl->flows);
+ }
+ rte_free(udp6_tbl);
+}
+
+static inline uint32_t
+find_an_empty_item(struct gro_udp6_tbl *tbl)
+{
+ uint32_t i;
+ uint32_t max_item_num = tbl->max_item_num;
+
+ for (i = 0; i < max_item_num; i++)
+ if (tbl->items[i].firstseg == NULL)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+find_an_empty_flow(struct gro_udp6_tbl *tbl)
+{
+ uint32_t i;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++)
+ if (tbl->flows[i].start_index == INVALID_ARRAY_INDEX)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+insert_new_item(struct gro_udp6_tbl *tbl,
+ struct rte_mbuf *pkt,
+ uint64_t start_time,
+ uint32_t prev_idx,
+ uint16_t frag_offset,
+ uint8_t is_last_frag)
+{
+ uint32_t item_idx;
+
+ item_idx = find_an_empty_item(tbl);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return INVALID_ARRAY_INDEX;
+
+ tbl->items[item_idx].firstseg = pkt;
+ tbl->items[item_idx].lastseg = rte_pktmbuf_lastseg(pkt);
+ tbl->items[item_idx].start_time = start_time;
+ tbl->items[item_idx].next_pkt_idx = INVALID_ARRAY_INDEX;
+ tbl->items[item_idx].frag_offset = frag_offset;
+ tbl->items[item_idx].is_last_frag = is_last_frag;
+ tbl->items[item_idx].nb_merged = 1;
+ tbl->item_num++;
+
+ /* if the previous packet exists, chain them together. */
+ if (prev_idx != INVALID_ARRAY_INDEX) {
+ tbl->items[item_idx].next_pkt_idx =
+ tbl->items[prev_idx].next_pkt_idx;
+ tbl->items[prev_idx].next_pkt_idx = item_idx;
+ }
+
+ return item_idx;
+}
+
+static inline uint32_t
+delete_item(struct gro_udp6_tbl *tbl, uint32_t item_idx,
+ uint32_t prev_item_idx)
+{
+ uint32_t next_idx = tbl->items[item_idx].next_pkt_idx;
+
+ /* NULL indicates an empty item */
+ tbl->items[item_idx].firstseg = NULL;
+ tbl->item_num--;
+ if (prev_item_idx != INVALID_ARRAY_INDEX)
+ tbl->items[prev_item_idx].next_pkt_idx = next_idx;
+
+ return next_idx;
+}
+
+/* Copy IPv6 addr */
+static inline void gro_ipv6_addr_copy(const uint8_t *ipv6_from,
+ uint8_t *ipv6_to)
+{
+ const uint64_t *from_words = (const uint64_t *)ipv6_from;
+ uint64_t *to_words = (uint64_t *)ipv6_to;
+
+ to_words[0] = from_words[0];
+ to_words[1] = from_words[1];
+}
+
+static inline uint32_t
+insert_new_flow(struct gro_udp6_tbl *tbl,
+ struct udp6_flow_key *src,
+ uint32_t item_idx)
+{
+ struct udp6_flow_key *dst;
+ uint32_t flow_idx;
+
+ flow_idx = find_an_empty_flow(tbl);
+ if (unlikely(flow_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ dst = &(tbl->flows[flow_idx].key);
+
+ rte_ether_addr_copy(&(src->eth_saddr), &(dst->eth_saddr));
+ rte_ether_addr_copy(&(src->eth_daddr), &(dst->eth_daddr));
+ gro_ipv6_addr_copy(src->ip_saddr, dst->ip_saddr);
+ gro_ipv6_addr_copy(src->ip_daddr, dst->ip_daddr);
+ dst->ip_id = src->ip_id;
+
+ tbl->flows[flow_idx].start_index = item_idx;
+ tbl->flow_num++;
+
+ return flow_idx;
+}
+
+static inline uint16_t
+get_ipv6_frag_offset(struct rte_ipv6_fragment_ext *ipv6_frag_hdr)
+{
+ return ((rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) >> 3) * 8);
+}
+
+static inline uint8_t
+is_last_ipv6_frag(struct rte_ipv6_fragment_ext *ipv6_frag_hdr)
+{
+ return (rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) & 0x0001);
+}
+
+/*
+ * update the packet length for the flushed packet.
+ */
+static inline void
+update_header(struct gro_udp6_item *item)
+{
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_mbuf *pkt = item->firstseg;
+ struct rte_ipv6_fragment_ext *ipv6_frag_hdr;
+ size_t fh_len = sizeof(*ipv6_frag_hdr);
+
+ ipv6_hdr = (struct rte_ipv6_hdr *)(rte_pktmbuf_mtod(pkt, char *) +
+ pkt->l2_len);
+ /* Note: payload_len includes extension headers and upper layers
+ * data, but l3_len also includes extension headers, so need to
+ * add length of extension headers if they exist.
+ */
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(pkt->pkt_len -
+ pkt->l2_len - pkt->l3_len);
+
+ /* Remove fragment extension header or clear MF flag */
+ if (item->is_last_frag && (ipv6_hdr->proto == IPPROTO_FRAGMENT)) {
+ uint16_t ip_ofs;
+
+ ipv6_frag_hdr = (struct rte_ipv6_fragment_ext *)(ipv6_hdr + 1);
+ ip_ofs = get_ipv6_frag_offset(ipv6_frag_hdr);
+ if (ip_ofs == 0) {
+ ipv6_hdr->proto = ipv6_frag_hdr->next_header;
+ pkt->l3_len -= fh_len;
+
+ /* Remove IPv6 fragment extension header */
+ memmove(rte_pktmbuf_mtod_offset(pkt, char *, fh_len),
+ rte_pktmbuf_mtod(pkt, char*),
+ pkt->outer_l2_len + pkt->outer_l3_len +
+ pkt->l2_len + pkt->l3_len);
+ rte_pktmbuf_adj(pkt, fh_len);
+ } else {
+ /* clear MF flag */
+ ipv6_frag_hdr->frag_data = rte_cpu_to_be_16(
+ (rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) &
+ 0xFFFE));
+ ipv6_hdr->payload_len += fh_len;
+ }
+ }
+}
+
+int32_t
+gro_udp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_udp6_tbl *tbl,
+ uint64_t start_time)
+{
+ struct rte_ether_hdr *eth_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_ipv6_fragment_ext *ipv6_frag_hdr;
+ uint16_t fh_len = sizeof(*ipv6_frag_hdr);
+ uint16_t ip_dl;
+ uint32_t ip_id;
+ uint16_t hdr_len;
+ uint16_t frag_offset = 0;
+ uint8_t is_last_frag;
+
+ struct udp6_flow_key key;
+ uint32_t cur_idx, prev_idx, item_idx;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ int cmp;
+ uint8_t find;
+
+ /*
+ * Don't process the packet whose UDP header length is not equal
+ * to 20.
+ */
+ if (unlikely(pkt->l4_len != UDP_HDRLEN))
+ return -1;
+
+ eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)eth_hdr + pkt->l2_len);
+
+ /* Note: l3_len includes length of extension headers */
+ hdr_len = pkt->l2_len + pkt->l3_len;
+
+ /*
+ * Don't process non-fragment packet.
+ */
+ if (ipv6_hdr->proto != IPPROTO_FRAGMENT)
+ return -1;
+
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ if (pkt->pkt_len <= hdr_len)
+ return -1;
+
+ ipv6_frag_hdr = (struct rte_ipv6_fragment_ext *)(ipv6_hdr + 1);
+ ip_dl = rte_be_to_cpu_16(ipv6_hdr->payload_len) - fh_len;
+ ip_id = rte_be_to_cpu_32(ipv6_frag_hdr->id);
+ frag_offset = get_ipv6_frag_offset(ipv6_frag_hdr);
+ is_last_frag = is_last_ipv6_frag(ipv6_frag_hdr);
+
+ rte_ether_addr_copy(&(eth_hdr->s_addr), &(key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->d_addr), &(key.eth_daddr));
+ gro_ipv6_addr_copy(ipv6_hdr->src_addr, key.ip_saddr);
+ gro_ipv6_addr_copy(ipv6_hdr->dst_addr, key.ip_daddr);
+ key.ip_id = ip_id;
+
+ /* Search for a matched flow. */
+ max_flow_num = tbl->max_flow_num;
+ remaining_flow_num = tbl->flow_num;
+ find = 0;
+ for (i = 0; i < max_flow_num && remaining_flow_num; i++) {
+ if (tbl->flows[i].start_index != INVALID_ARRAY_INDEX) {
+ if (is_same_udp6_flow(tbl->flows[i].key, key)) {
+ find = 1;
+ break;
+ }
+ remaining_flow_num--;
+ }
+ }
+
+ /*
+ * Fail to find a matched flow. Insert a new flow and store the
+ * packet into the flow.
+ */
+ if (find == 0) {
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, frag_offset,
+ is_last_frag);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ if (insert_new_flow(tbl, &key, item_idx) ==
+ INVALID_ARRAY_INDEX) {
+ /*
+ * Fail to insert a new flow, so delete the
+ * stored packet.
+ */
+ delete_item(tbl, item_idx, INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ /*
+ * Check all packets in the flow and try to find a neighbor for
+ * the input packet.
+ */
+ cur_idx = tbl->flows[i].start_index;
+ prev_idx = cur_idx;
+ do {
+ cmp = udp6_check_neighbor(&(tbl->items[cur_idx]),
+ frag_offset, ip_dl, 0);
+ if (cmp) {
+ if (merge_two_udp6_packets(&(tbl->items[cur_idx]),
+ pkt, cmp, frag_offset,
+ is_last_frag, 0))
+ return 1;
+ /*
+ * Fail to merge the two packets, as the packet
+ * length is greater than the max value. Store
+ * the packet into the flow.
+ */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ frag_offset, is_last_frag) ==
+ INVALID_ARRAY_INDEX)
+ return -1;
+ return 0;
+ }
+
+ /* Ensure inserted items are ordered by frag_offset */
+ if (frag_offset
+ < tbl->items[cur_idx].frag_offset) {
+ break;
+ }
+
+ prev_idx = cur_idx;
+ cur_idx = tbl->items[cur_idx].next_pkt_idx;
+ } while (cur_idx != INVALID_ARRAY_INDEX);
+
+ /* Fail to find a neighbor, so store the packet into the flow. */
+ if (cur_idx == tbl->flows[i].start_index) {
+ /* Insert it before the first packet of the flow */
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, frag_offset,
+ is_last_frag);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ tbl->items[item_idx].next_pkt_idx = cur_idx;
+ tbl->flows[i].start_index = item_idx;
+ } else {
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ frag_offset, is_last_frag) == INVALID_ARRAY_INDEX)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+gro_udp6_merge_items(struct gro_udp6_tbl *tbl,
+ uint32_t start_idx)
+{
+ uint16_t frag_offset;
+ uint8_t is_last_frag;
+ int16_t ip_dl;
+ struct rte_mbuf *pkt;
+ int cmp;
+ uint32_t item_idx;
+ uint16_t hdr_len;
+
+ item_idx = tbl->items[start_idx].next_pkt_idx;
+ while (item_idx != INVALID_ARRAY_INDEX) {
+ pkt = tbl->items[item_idx].firstseg;
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len;
+ ip_dl = pkt->pkt_len - hdr_len;
+ frag_offset = tbl->items[item_idx].frag_offset;
+ is_last_frag = tbl->items[item_idx].is_last_frag;
+ cmp = udp6_check_neighbor(&(tbl->items[start_idx]),
+ frag_offset, ip_dl, 0);
+ if (cmp) {
+ if (merge_two_udp6_packets(
+ &(tbl->items[start_idx]),
+ pkt, cmp, frag_offset,
+ is_last_frag, 0)) {
+ item_idx = delete_item(tbl, item_idx,
+ INVALID_ARRAY_INDEX);
+ tbl->items[start_idx].next_pkt_idx
+ = item_idx;
+ } else {
+ return 0;
+ }
+ } else {
+ return 0;
+ }
+ }
+
+ return 0;
+}
+
+uint16_t
+gro_udp6_tbl_timeout_flush(struct gro_udp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out)
+{
+ uint16_t k = 0;
+ uint32_t i, j;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++) {
+ if (unlikely(tbl->flow_num == 0))
+ return k;
+
+ j = tbl->flows[i].start_index;
+ while (j != INVALID_ARRAY_INDEX) {
+ if (tbl->items[j].start_time <= flush_timestamp) {
+ gro_udp6_merge_items(tbl, j);
+ out[k++] = tbl->items[j].firstseg;
+ if (tbl->items[j].nb_merged > 1)
+ update_header(&(tbl->items[j]));
+ /*
+ * Delete the packet and get the next
+ * packet in the flow.
+ */
+ j = delete_item(tbl, j, INVALID_ARRAY_INDEX);
+ tbl->flows[i].start_index = j;
+ if (j == INVALID_ARRAY_INDEX)
+ tbl->flow_num--;
+
+ if (unlikely(k == nb_out))
+ return k;
+ } else
+ /*
+ * The left packets in this flow won't be
+ * timeout. Go to check other flows.
+ */
+ break;
+ }
+ }
+ return k;
+}
+
+uint32_t
+gro_udp6_tbl_pkt_count(void *tbl)
+{
+ struct gro_udp6_tbl *gro_tbl = tbl;
+
+ if (gro_tbl)
+ return gro_tbl->item_num;
+
+ return 0;
+}
diff --git a/lib/librte_gro/gro_udp6.h b/lib/librte_gro/gro_udp6.h
new file mode 100644
index 0000000..92696e4
--- /dev/null
+++ b/lib/librte_gro/gro_udp6.h
@@ -0,0 +1,284 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#ifndef _GRO_UDP6_H_
+#define _GRO_UDP6_H_
+
+#include <rte_ip.h>
+#include <rte_udp.h>
+#include <rte_vxlan.h>
+
+#define INVALID_ARRAY_INDEX 0xffffffffUL
+#define GRO_UDP6_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/*
+ * The max length of a IPv6 packet, which includes the length of the L3
+ * header, the L4 header and the data payload.
+ */
+#define MAX_IPV6_PKT_LENGTH UINT16_MAX
+
+#define UDP_HDRLEN 8
+
+/* Header fields representing a UDP/IPv6 flow */
+struct udp6_flow_key {
+ struct rte_ether_addr eth_saddr;
+ struct rte_ether_addr eth_daddr;
+ uint8_t ip_saddr[16];
+ uint8_t ip_daddr[16];
+
+ /* IP fragment for UDP does not contain UDP header
+ * except the first one. But IP ID must be same.
+ * ip_id of fragment is 32 bit for IPv6
+ */
+ uint32_t ip_id;
+};
+
+struct gro_udp6_flow {
+ struct udp6_flow_key key;
+ /*
+ * The index of the first packet in the flow.
+ * INVALID_ARRAY_INDEX indicates an empty flow.
+ */
+ uint32_t start_index;
+};
+
+struct gro_udp6_item {
+ /*
+ * The first MBUF segment of the packet. If the value
+ * is NULL, it means the item is empty.
+ */
+ struct rte_mbuf *firstseg;
+ /* The last MBUF segment of the packet */
+ struct rte_mbuf *lastseg;
+ /*
+ * The time when the first packet is inserted into the table.
+ * This value won't be updated, even if the packet is merged
+ * with other packets.
+ */
+ uint64_t start_time;
+ /*
+ * next_pkt_idx is used to chain the packets that
+ * are in the same flow but can't be merged together
+ * (e.g. caused by packet reordering).
+ */
+ uint32_t next_pkt_idx;
+ /* offset of IP fragment packet */
+ uint16_t frag_offset;
+ /* is last IP fragment? */
+ uint8_t is_last_frag;
+ /* the number of merged packets */
+ uint16_t nb_merged;
+};
+
+/*
+ * UDP/IPv6 reassembly table structure.
+ */
+struct gro_udp6_tbl {
+ /* item array */
+ struct gro_udp6_item *items;
+ /* flow array */
+ struct gro_udp6_flow *flows;
+ /* current item number */
+ uint32_t item_num;
+ /* current flow num */
+ uint32_t flow_num;
+ /* item array size */
+ uint32_t max_item_num;
+ /* flow array size */
+ uint32_t max_flow_num;
+};
+
+/**
+ * This function creates a UDP/IPv6 reassembly table.
+ *
+ * @param socket_id
+ * Socket index for allocating the UDP/IPv6 reassemble table
+ * @param max_flow_num
+ * The maximum number of flows in the UDP/IPv6 GRO table
+ * @param max_item_per_flow
+ * The maximum number of packets per flow
+ *
+ * @return
+ * - Return the table pointer on success.
+ * - Return NULL on failure.
+ */
+void *gro_udp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow);
+
+/**
+ * This function destroys a UDP/IPv6 reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the UDP/IPv6 reassembly table.
+ */
+void gro_udp6_tbl_destroy(void *tbl);
+
+/**
+ * This function merges a UDP/IPv6 packet.
+ *
+ * This function does not check if the packet has correct checksums and
+ * does not re-calculate checksums for the merged packet. It returns the
+ * packet if it isn't UDP fragment or there is no available space in
+ * the table.
+ *
+ * @param pkt
+ * Packet to reassemble
+ * @param tbl
+ * Pointer pointing to the UDP/IPv6 reassembly table
+ * @start_time
+ * The time when the packet is inserted into the table
+ *
+ * @return
+ * - Return a positive value if the packet is merged.
+ * - Return zero if the packet isn't merged but stored in the table.
+ * - Return a negative value for invalid parameters or no available
+ * space in the table.
+ */
+int32_t gro_udp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_udp6_tbl *tbl,
+ uint64_t start_time);
+
+/**
+ * This function flushes timeout packets in a UDP/IPv6 reassembly table,
+ * and without updating checksums.
+ *
+ * @param tbl
+ * UDP/IPv6 reassembly table pointer
+ * @param flush_timestamp
+ * Flush packets which are inserted into the table before or at the
+ * flush_timestamp.
+ * @param out
+ * Pointer array used to keep flushed packets
+ * @param nb_out
+ * The element number in 'out'. It also determines the maximum number of
+ * packets that can be flushed finally.
+ *
+ * @return
+ * The number of flushed packets
+ */
+uint16_t gro_udp6_tbl_timeout_flush(struct gro_udp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out);
+
+/**
+ * This function returns the number of the packets in a UDP/IPv6
+ * reassembly table.
+ *
+ * @param tbl
+ * UDP/IPv6 reassembly table pointer
+ *
+ * @return
+ * The number of packets in the table
+ */
+uint32_t gro_udp6_tbl_pkt_count(void *tbl);
+
+#ifndef _GRO_TCP6_H_
+static inline int rte_is_same_ipv6_addr(const uint8_t *ipv6_a1,
+ const uint8_t *ipv6_a2)
+{
+ const uint64_t *w1 = (const uint64_t *)ipv6_a1;
+ const uint64_t *w2 = (const uint64_t *)ipv6_a2;
+
+ return ((w1[0] ^ w2[0]) | (w1[1] ^ w2[1])) == 0;
+}
+#endif
+
+/*
+ * Check if two UDP/IPv6 packets belong to the same flow.
+ */
+static inline int
+is_same_udp6_flow(struct udp6_flow_key k1, struct udp6_flow_key k2)
+{
+ return (rte_is_same_ether_addr(&k1.eth_saddr, &k2.eth_saddr) &&
+ rte_is_same_ether_addr(&k1.eth_daddr, &k2.eth_daddr) &&
+ rte_is_same_ipv6_addr(k1.ip_saddr, k2.ip_saddr) &&
+ rte_is_same_ipv6_addr(k1.ip_daddr, k2.ip_daddr) &&
+ (k1.ip_id == k2.ip_id));
+}
+
+/*
+ * Merge two UDP/IPv6 packets without updating checksums.
+ * If cmp is larger than 0, append the new packet to the
+ * original packet. Otherwise, pre-pend the new packet to
+ * the original packet.
+ */
+static inline int
+merge_two_udp6_packets(struct gro_udp6_item *item,
+ struct rte_mbuf *pkt,
+ int cmp,
+ uint16_t frag_offset,
+ uint8_t is_last_frag,
+ uint16_t l2_offset)
+{
+ struct rte_mbuf *pkt_head, *pkt_tail, *lastseg;
+ uint16_t hdr_len, l2_len;
+ uint32_t ip_len;
+
+ if (cmp > 0) {
+ pkt_head = item->firstseg;
+ pkt_tail = pkt;
+ } else {
+ pkt_head = pkt;
+ pkt_tail = item->firstseg;
+ }
+
+ /* check if the IPv6 packet length is greater than the max value */
+ hdr_len = l2_offset + pkt_head->l2_len + pkt_head->l3_len;
+ l2_len = l2_offset > 0 ? pkt_head->outer_l2_len : pkt_head->l2_len;
+ ip_len = pkt_head->pkt_len - l2_len
+ + pkt_tail->pkt_len - hdr_len;
+ if (unlikely(ip_len > MAX_IPV6_PKT_LENGTH))
+ return 0;
+
+ /* remove the packet header for the tail packet */
+ rte_pktmbuf_adj(pkt_tail, hdr_len);
+
+ /* chain two packets together */
+ if (cmp > 0) {
+ item->lastseg->next = pkt;
+ item->lastseg = rte_pktmbuf_lastseg(pkt);
+ } else {
+ lastseg = rte_pktmbuf_lastseg(pkt);
+ lastseg->next = item->firstseg;
+ item->firstseg = pkt;
+ item->frag_offset = frag_offset;
+ }
+ item->nb_merged++;
+ if (is_last_frag)
+ item->is_last_frag = is_last_frag;
+
+ /* update MBUF metadata for the merged packet */
+ pkt_head->nb_segs += pkt_tail->nb_segs;
+ pkt_head->pkt_len += pkt_tail->pkt_len;
+
+ return 1;
+}
+
+/*
+ * Check if two UDP/IPv6 packets are neighbors.
+ */
+static inline int
+udp6_check_neighbor(struct gro_udp6_item *item,
+ uint16_t frag_offset,
+ uint16_t ip_dl,
+ uint16_t l2_offset)
+{
+ struct rte_mbuf *pkt_orig = item->firstseg;
+ uint16_t len;
+
+ /* check if the two packets are neighbors */
+ len = pkt_orig->pkt_len - l2_offset - pkt_orig->l2_len -
+ pkt_orig->l3_len;
+ if (frag_offset == item->frag_offset + len)
+ /* append the new packet */
+ return 1;
+ else if (frag_offset + ip_dl == item->frag_offset)
+ /* pre-pend the new packet */
+ return -1;
+
+ return 0;
+}
+#endif
diff --git a/lib/librte_gro/meson.build b/lib/librte_gro/meson.build
index 3eff89c..7939081 100644
--- a/lib/librte_gro/meson.build
+++ b/lib/librte_gro/meson.build
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
-sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c')
+sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c', 'gro_udp6.c')
headers = files('rte_gro.h')
deps += ['ethdev']
diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index 0c5584e..13b38cc 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -11,6 +11,7 @@
#include "gro_tcp4.h"
#include "gro_tcp6.h"
#include "gro_udp4.h"
+#include "gro_udp6.h"
#include "gro_vxlan6_tcp4.h"
#include "gro_vxlan6_tcp6.h"
#include "gro_vxlan_tcp4.h"
@@ -28,21 +29,21 @@
gro_udp4_tbl_create, gro_vxlan_udp4_tbl_create,
gro_tcp6_tbl_create, gro_vxlan_tcp6_tbl_create,
gro_vxlan6_tcp4_tbl_create, gro_vxlan6_tcp6_tbl_create,
- NULL};
+ gro_udp6_tbl_create, NULL};
static gro_tbl_destroy_fn tbl_destroy_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_destroy, gro_vxlan_tcp4_tbl_destroy,
gro_udp4_tbl_destroy, gro_vxlan_udp4_tbl_destroy,
gro_tcp6_tbl_destroy, gro_vxlan_tcp6_tbl_destroy,
gro_vxlan6_tcp4_tbl_destroy,
gro_vxlan6_tcp6_tbl_destroy,
- NULL};
+ gro_udp6_tbl_destroy, NULL};
static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_pkt_count, gro_vxlan_tcp4_tbl_pkt_count,
gro_udp4_tbl_pkt_count, gro_vxlan_udp4_tbl_pkt_count,
gro_tcp6_tbl_pkt_count, gro_vxlan_tcp6_tbl_pkt_count,
gro_vxlan6_tcp4_tbl_pkt_count,
gro_vxlan6_tcp6_tbl_pkt_count,
- NULL};
+ gro_udp6_tbl_pkt_count, NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
@@ -121,6 +122,10 @@
((ptype & RTE_PTYPE_INNER_L3_MASK) == \
RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN)))
+#define IS_IPV6_UDP_PKT(ptype) (RTE_ETH_IS_IPV6_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+ (RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
+
/*
* GRO context structure. It keeps the table structures, which are
* used to merge packets, for different GRO types. Before using
@@ -246,13 +251,19 @@ struct gro_ctx {
struct gro_vxlan6_tcp6_item
vxlan6_tcp6_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{{0}} };
+ /* allocate a reassembly table for UDP/IPv6 GRO */
+ struct gro_udp6_tbl udp6_tbl;
+ struct gro_udp6_flow udp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_udp6_item udp6_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{0} };
+
struct rte_mbuf *unprocess_pkts[nb_pkts];
uint32_t item_num;
int32_t ret;
uint16_t i, unprocess_num = 0, nb_after_gro = nb_pkts;
uint8_t do_tcp4_gro = 0, do_vxlan_tcp_gro = 0, do_udp4_gro = 0,
do_vxlan_udp_gro = 0, do_tcp6_gro = 0, do_vxlan_tcp6_gro = 0,
- do_vxlan6_tcp4_gro = 0, do_vxlan6_tcp6_gro = 0;
+ do_vxlan6_tcp4_gro = 0, do_vxlan6_tcp6_gro = 0,
+ do_udp6_gro = 0;
if (unlikely((param->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -261,7 +272,8 @@ struct gro_ctx {
RTE_GRO_TCP_IPV6 |
RTE_GRO_IPV4_VXLAN_TCP_IPV6 |
RTE_GRO_IPV6_VXLAN_TCP_IPV4 |
- RTE_GRO_IPV6_VXLAN_TCP_IPV6)) == 0))
+ RTE_GRO_IPV6_VXLAN_TCP_IPV6 |
+ RTE_GRO_UDP_IPV6)) == 0))
return nb_pkts;
/* Get the maximum number of packets */
@@ -373,6 +385,19 @@ struct gro_ctx {
do_vxlan6_tcp6_gro = 1;
}
+ if (param->gro_types & RTE_GRO_UDP_IPV6) {
+ for (i = 0; i < item_num; i++)
+ udp6_flows[i].start_index = INVALID_ARRAY_INDEX;
+
+ udp6_tbl.flows = udp6_flows;
+ udp6_tbl.items = udp6_items;
+ udp6_tbl.flow_num = 0;
+ udp6_tbl.item_num = 0;
+ udp6_tbl.max_flow_num = item_num;
+ udp6_tbl.max_item_num = item_num;
+ do_udp6_gro = 1;
+ }
+
for (i = 0; i < nb_pkts; i++) {
/*
* The timestamp is ignored, since all packets
@@ -447,6 +472,14 @@ struct gro_ctx {
nb_after_gro--;
else if (ret < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_UDP_PKT(pkts[i]->packet_type) &&
+ do_udp6_gro) {
+ ret = gro_udp6_reassemble(pkts[i], &udp6_tbl, 0);
+ if (ret > 0)
+ /* merge successfully */
+ nb_after_gro--;
+ else if (ret < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -496,6 +529,11 @@ struct gro_ctx {
0, &pkts[i], nb_pkts - i);
}
+ if (do_udp6_gro) {
+ i += gro_udp6_tbl_timeout_flush(&udp6_tbl, 0,
+ &pkts[i], nb_pkts - i);
+ }
+
/* Copy unprocessed packets */
if (unprocess_num > 0) {
memcpy(&pkts[i], unprocess_pkts,
@@ -516,12 +554,13 @@ struct gro_ctx {
struct rte_mbuf *unprocess_pkts[nb_pkts];
struct gro_ctx *gro_ctx = ctx;
void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl,
- *vxlan_tcp6_tbl, *vxlan6_tcp4_tbl, *vxlan6_tcp6_tbl;
+ *vxlan_tcp6_tbl, *vxlan6_tcp4_tbl, *vxlan6_tcp6_tbl,
+ *udp6_tbl;
uint64_t current_time;
uint16_t i, unprocess_num = 0;
uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro,
do_tcp6_gro, do_vxlan_tcp6_gro, do_vxlan6_tcp4_gro,
- do_vxlan6_tcp6_gro;
+ do_vxlan6_tcp6_gro, do_udp6_gro;
if (unlikely((gro_ctx->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -530,7 +569,8 @@ struct gro_ctx {
RTE_GRO_TCP_IPV6 |
RTE_GRO_IPV4_VXLAN_TCP_IPV6 |
RTE_GRO_IPV6_VXLAN_TCP_IPV4 |
- RTE_GRO_IPV6_VXLAN_TCP_IPV6)) == 0))
+ RTE_GRO_IPV6_VXLAN_TCP_IPV6 |
+ RTE_GRO_UDP_IPV6)) == 0))
return nb_pkts;
tcp_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV4_INDEX];
@@ -541,6 +581,7 @@ struct gro_ctx {
vxlan_tcp6_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_TCP_IPV6_INDEX];
vxlan6_tcp4_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX];
vxlan6_tcp6_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX];
+ udp6_tbl = gro_ctx->tbls[RTE_GRO_UDP_IPV6_INDEX];
do_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV4) ==
RTE_GRO_TCP_IPV4;
@@ -558,6 +599,8 @@ struct gro_ctx {
== RTE_GRO_IPV6_VXLAN_TCP_IPV4;
do_vxlan6_tcp6_gro = (gro_ctx->gro_types & RTE_GRO_IPV6_VXLAN_TCP_IPV6)
== RTE_GRO_IPV6_VXLAN_TCP_IPV6;
+ do_udp6_gro = (gro_ctx->gro_types & RTE_GRO_UDP_IPV6) ==
+ RTE_GRO_UDP_IPV6;
current_time = rte_rdtsc();
@@ -602,6 +645,11 @@ struct gro_ctx {
if (gro_vxlan6_tcp6_reassemble(pkts[i], vxlan6_tcp6_tbl,
current_time) < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_UDP_PKT(pkts[i]->packet_type) &&
+ do_udp6_gro) {
+ if (gro_udp6_reassemble(pkts[i], udp6_tbl,
+ current_time) < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -685,6 +733,14 @@ struct gro_ctx {
num += gro_vxlan6_tcp6_tbl_timeout_flush(gro_ctx->tbls[
RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX],
flush_timestamp, &out[num], left_nb_out);
+ left_nb_out = max_nb_out - num;
+ }
+
+ if ((gro_types & RTE_GRO_UDP_IPV6) && left_nb_out > 0) {
+ num += gro_udp6_tbl_timeout_flush(
+ gro_ctx->tbls[RTE_GRO_UDP_IPV6_INDEX],
+ flush_timestamp,
+ &out[num], left_nb_out);
}
return num;
diff --git a/lib/librte_gro/rte_gro.h b/lib/librte_gro/rte_gro.h
index cb0895f..94ed3d3 100644
--- a/lib/librte_gro/rte_gro.h
+++ b/lib/librte_gro/rte_gro.h
@@ -50,6 +50,9 @@
#define RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX 7
#define RTE_GRO_IPV6_VXLAN_TCP_IPV6 (1ULL << RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX)
/**< IPv6 VxLAN TCP/IPv6 GRO flag. */
+#define RTE_GRO_UDP_IPV6_INDEX 8
+#define RTE_GRO_UDP_IPV6 (1ULL << RTE_GRO_UDP_IPV6_INDEX)
+/**< UDP/IPv6 GRO flag */
/**
* Structure used to create GRO context objects or used to pass
--
1.8.3.1
^ permalink raw reply [flat|nested] 13+ messages in thread* [dpdk-dev] [PATCH v1 6/8] gro: support IPv4 VXLAN UDP/IPv6
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
` (4 preceding siblings ...)
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 5/8] gro: support UDP/IPv6 yang_y_yi
@ 2020-12-21 3:50 ` yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 7/8] gro: support IPv6 VXLAN UDP/IPv4 yang_y_yi
` (2 subsequent siblings)
8 siblings, 0 replies; 13+ messages in thread
From: yang_y_yi @ 2020-12-21 3:50 UTC (permalink / raw)
To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi
From: Yi Yang <yangyi01@inspur.com>
IPv4 VXLAN UDP/IPv6 GRO can help improve UDP/IPv6
performance in IPv4 VXLAN use case.
With this enabled in DPDK, OVS DPDK can leverage it
to improve VM-to-VM UDP/IPv6 performance, it will merge
small adjacent IPv4 VXLAN UDP/IPv6 fragments to a big
IPv4 VXLAN UDP/IPv6 packet immediate after they are
received from a physical NIC. It is very helpful in OVS
DPDK IPv4 VXLAN use case.
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
.../prog_guide/generic_receive_offload_lib.rst | 4 +-
doc/guides/rel_notes/release_21_02.rst | 5 +
lib/librte_gro/gro_vxlan_udp6.c | 607 +++++++++++++++++++++
lib/librte_gro/gro_vxlan_udp6.h | 152 ++++++
lib/librte_gro/meson.build | 2 +-
lib/librte_gro/rte_gro.c | 83 ++-
lib/librte_gro/rte_gro.h | 3 +
7 files changed, 845 insertions(+), 11 deletions(-)
create mode 100644 lib/librte_gro/gro_vxlan_udp6.c
create mode 100644 lib/librte_gro/gro_vxlan_udp6.h
diff --git a/doc/guides/prog_guide/generic_receive_offload_lib.rst b/doc/guides/prog_guide/generic_receive_offload_lib.rst
index 0ea3076..906e85f 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -32,8 +32,8 @@ fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
Currently, the GRO library provides GRO supports for TCP/IPv4, UDP/IPv4,
UDP/IPv6, and TCP/IPv6 packets as well as VxLAN packets which contain an
-outer IPv4 header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6 packet or
-an outer IPv6 header and an inner TCP/IPv4 or TCP/IPv6 packet.
+outer IPv4 header and an inner TCP/IPv4, UDP/IPv4, TCP/IPv6 or UDP/IPv6
+packet or an outer IPv6 header and an inner TCP/IPv4 or TCP/IPv6 packet.
Two Sets of API
---------------
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index d8974b7..4758cea 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -80,6 +80,11 @@ New Features
Added UDP/IPv6 GRO support for non-VXLAN packets, this enabled UDP/IPv6
GRO support for IPv6 VLAN use case.
+* **Added UDP/IPv6 GRO support for IPv4 VXLAN packets.**
+
+ Added UDP/IPv6 GRO support for IPv4 VXLAN packets, this enabled UDP/IPv6
+ GRO support for IPv4 VXLAN use case.
+
Removed Items
-------------
diff --git a/lib/librte_gro/gro_vxlan_udp6.c b/lib/librte_gro/gro_vxlan_udp6.c
new file mode 100644
index 0000000..8c76b41
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan_udp6.c
@@ -0,0 +1,607 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_udp.h>
+#include <rte_ip.h>
+
+#include "gro_vxlan_udp6.h"
+
+void *
+gro_vxlan_udp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow)
+{
+ struct gro_vxlan_udp6_tbl *tbl;
+ size_t size;
+ uint32_t entries_num, i;
+
+ entries_num = max_flow_num * max_item_per_flow;
+ entries_num = RTE_MIN(entries_num, GRO_VXLAN_UDP6_TBL_MAX_ITEM_NUM);
+
+ if (entries_num == 0)
+ return NULL;
+
+ tbl = rte_zmalloc_socket(__func__,
+ sizeof(struct gro_vxlan_udp6_tbl),
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl == NULL)
+ return NULL;
+
+ size = sizeof(struct gro_vxlan_udp6_item) * entries_num;
+ tbl->items = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->items == NULL) {
+ rte_free(tbl);
+ return NULL;
+ }
+ tbl->max_item_num = entries_num;
+
+ size = sizeof(struct gro_vxlan_udp6_flow) * entries_num;
+ tbl->flows = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->flows == NULL) {
+ rte_free(tbl->items);
+ rte_free(tbl);
+ return NULL;
+ }
+
+ for (i = 0; i < entries_num; i++)
+ tbl->flows[i].start_index = INVALID_ARRAY_INDEX;
+ tbl->max_flow_num = entries_num;
+
+ return tbl;
+}
+
+void
+gro_vxlan_udp6_tbl_destroy(void *tbl)
+{
+ struct gro_vxlan_udp6_tbl *vxlan_tbl = tbl;
+
+ if (vxlan_tbl) {
+ rte_free(vxlan_tbl->items);
+ rte_free(vxlan_tbl->flows);
+ }
+ rte_free(vxlan_tbl);
+}
+
+static inline uint32_t
+find_an_empty_item(struct gro_vxlan_udp6_tbl *tbl)
+{
+ uint32_t max_item_num = tbl->max_item_num, i;
+
+ for (i = 0; i < max_item_num; i++)
+ if (tbl->items[i].inner_item.firstseg == NULL)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+find_an_empty_flow(struct gro_vxlan_udp6_tbl *tbl)
+{
+ uint32_t max_flow_num = tbl->max_flow_num, i;
+
+ for (i = 0; i < max_flow_num; i++)
+ if (tbl->flows[i].start_index == INVALID_ARRAY_INDEX)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+insert_new_item(struct gro_vxlan_udp6_tbl *tbl,
+ struct rte_mbuf *pkt,
+ uint64_t start_time,
+ uint32_t prev_idx,
+ uint16_t frag_offset,
+ uint8_t is_last_frag,
+ uint16_t outer_ip_id,
+ uint8_t outer_is_atomic)
+{
+ uint32_t item_idx;
+
+ item_idx = find_an_empty_item(tbl);
+ if (unlikely(item_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ tbl->items[item_idx].inner_item.firstseg = pkt;
+ tbl->items[item_idx].inner_item.lastseg = rte_pktmbuf_lastseg(pkt);
+ tbl->items[item_idx].inner_item.start_time = start_time;
+ tbl->items[item_idx].inner_item.next_pkt_idx = INVALID_ARRAY_INDEX;
+ tbl->items[item_idx].inner_item.frag_offset = frag_offset;
+ tbl->items[item_idx].inner_item.is_last_frag = is_last_frag;
+ tbl->items[item_idx].inner_item.nb_merged = 1;
+ tbl->items[item_idx].outer_ip_id = outer_ip_id;
+ tbl->items[item_idx].outer_is_atomic = outer_is_atomic;
+ tbl->item_num++;
+
+ /* If the previous packet exists, chain the new one with it. */
+ if (prev_idx != INVALID_ARRAY_INDEX) {
+ tbl->items[item_idx].inner_item.next_pkt_idx =
+ tbl->items[prev_idx].inner_item.next_pkt_idx;
+ tbl->items[prev_idx].inner_item.next_pkt_idx = item_idx;
+ }
+
+ return item_idx;
+}
+
+static inline uint32_t
+delete_item(struct gro_vxlan_udp6_tbl *tbl,
+ uint32_t item_idx,
+ uint32_t prev_item_idx)
+{
+ uint32_t next_idx = tbl->items[item_idx].inner_item.next_pkt_idx;
+
+ /* NULL indicates an empty item. */
+ tbl->items[item_idx].inner_item.firstseg = NULL;
+ tbl->item_num--;
+ if (prev_item_idx != INVALID_ARRAY_INDEX)
+ tbl->items[prev_item_idx].inner_item.next_pkt_idx = next_idx;
+
+ return next_idx;
+}
+
+/* Copy IPv6 addr */
+static inline void gro_ipv6_addr_copy(const uint8_t *ipv6_from,
+ uint8_t *ipv6_to)
+{
+ const uint64_t *from_words = (const uint64_t *)ipv6_from;
+ uint64_t *to_words = (uint64_t *)ipv6_to;
+
+ to_words[0] = from_words[0];
+ to_words[1] = from_words[1];
+}
+
+
+static inline uint32_t
+insert_new_flow(struct gro_vxlan_udp6_tbl *tbl,
+ struct vxlan_udp6_flow_key *src,
+ uint32_t item_idx)
+{
+ struct vxlan_udp6_flow_key *dst;
+ uint32_t flow_idx;
+
+ flow_idx = find_an_empty_flow(tbl);
+ if (unlikely(flow_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ dst = &(tbl->flows[flow_idx].key);
+
+ rte_ether_addr_copy(&(src->inner_key.eth_saddr),
+ &(dst->inner_key.eth_saddr));
+ rte_ether_addr_copy(&(src->inner_key.eth_daddr),
+ &(dst->inner_key.eth_daddr));
+ gro_ipv6_addr_copy(src->inner_key.ip_saddr, dst->inner_key.ip_saddr);
+ gro_ipv6_addr_copy(src->inner_key.ip_daddr, dst->inner_key.ip_daddr);
+ dst->inner_key.ip_id = src->inner_key.ip_id;
+
+ dst->vxlan_hdr.vx_flags = src->vxlan_hdr.vx_flags;
+ dst->vxlan_hdr.vx_vni = src->vxlan_hdr.vx_vni;
+ rte_ether_addr_copy(&(src->outer_eth_saddr), &(dst->outer_eth_saddr));
+ rte_ether_addr_copy(&(src->outer_eth_daddr), &(dst->outer_eth_daddr));
+ dst->outer_ip_src_addr = src->outer_ip_src_addr;
+ dst->outer_ip_dst_addr = src->outer_ip_dst_addr;
+ dst->outer_src_port = src->outer_src_port;
+ dst->outer_dst_port = src->outer_dst_port;
+
+ tbl->flows[flow_idx].start_index = item_idx;
+ tbl->flow_num++;
+
+ return flow_idx;
+}
+
+static inline int
+is_same_vxlan_udp6_flow(struct vxlan_udp6_flow_key k1,
+ struct vxlan_udp6_flow_key k2)
+{
+ /* For VxLAN packet, outer udp src port is calculated from
+ * inner packet RSS hash, udp src port of the first UDP
+ * fragment is different from one of other UDP fragments
+ * even if they are same flow, so we have to skip outer udp
+ * src port comparison here.
+ */
+ return (rte_is_same_ether_addr(&k1.outer_eth_saddr,
+ &k2.outer_eth_saddr) &&
+ rte_is_same_ether_addr(&k1.outer_eth_daddr,
+ &k2.outer_eth_daddr) &&
+ (k1.outer_ip_src_addr == k2.outer_ip_src_addr) &&
+ (k1.outer_ip_dst_addr == k2.outer_ip_dst_addr) &&
+ (k1.outer_dst_port == k2.outer_dst_port) &&
+ (k1.vxlan_hdr.vx_flags == k2.vxlan_hdr.vx_flags) &&
+ (k1.vxlan_hdr.vx_vni == k2.vxlan_hdr.vx_vni) &&
+ is_same_udp6_flow(k1.inner_key, k2.inner_key));
+}
+
+static inline int
+udp6_check_vxlan_neighbor(struct gro_vxlan_udp6_item *item,
+ uint16_t frag_offset,
+ uint16_t ip_dl)
+{
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ int cmp;
+ uint16_t l2_offset;
+ int ret = 0;
+
+ l2_offset = pkt->outer_l2_len + pkt->outer_l3_len;
+ cmp = udp6_check_neighbor(&item->inner_item, frag_offset,
+ ip_dl, l2_offset);
+ if (cmp > 0)
+ /* Append the new packet. */
+ ret = 1;
+ else if (cmp < 0)
+ /* Prepend the new packet. */
+ ret = -1;
+
+ return ret;
+}
+
+static inline int
+merge_two_vxlan_udp6_packets(struct gro_vxlan_udp6_item *item,
+ struct rte_mbuf *pkt,
+ int cmp,
+ uint16_t frag_offset,
+ uint8_t is_last_frag)
+{
+ if (merge_two_udp6_packets(&item->inner_item, pkt, cmp, frag_offset,
+ is_last_frag,
+ pkt->outer_l2_len + pkt->outer_l3_len)) {
+ return 1;
+ }
+
+ return 0;
+}
+
+static inline uint16_t
+get_ipv6_frag_offset(struct rte_ipv6_fragment_ext *ipv6_frag_hdr)
+{
+ return ((rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) >> 3) * 8);
+}
+
+static inline uint8_t
+is_last_ipv6_frag(struct rte_ipv6_fragment_ext *ipv6_frag_hdr)
+{
+ return (rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) & 0x0001);
+}
+
+static inline void
+update_vxlan_header(struct gro_vxlan_udp6_item *item)
+{
+ struct rte_ipv4_hdr *outer_ipv4_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_ipv6_fragment_ext *ipv6_frag_hdr;
+ size_t fh_len = sizeof(*ipv6_frag_hdr);
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ uint16_t len;
+
+ /* Position to inner IPv6 header first */
+ ipv6_hdr = (struct rte_ipv6_hdr *)rte_pktmbuf_mtod_offset(pkt, char *,
+ pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len);
+ len = pkt->pkt_len - pkt->outer_l2_len - pkt->outer_l3_len
+ - pkt->l2_len;
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(len - pkt->l3_len);
+
+ /* Remove fragment extension header or clear MF flag */
+ if (item->inner_item.is_last_frag
+ && (ipv6_hdr->proto == IPPROTO_FRAGMENT)) {
+ uint16_t ip_ofs;
+
+ ipv6_frag_hdr = (struct rte_ipv6_fragment_ext *)(ipv6_hdr + 1);
+ ip_ofs = get_ipv6_frag_offset(ipv6_frag_hdr);
+ if (ip_ofs == 0) {
+ ipv6_hdr->proto = ipv6_frag_hdr->next_header;
+ pkt->l3_len -= fh_len;
+
+ /* Remove IPv6 fragment extension header */
+ memmove(rte_pktmbuf_mtod_offset(pkt, char *, fh_len),
+ rte_pktmbuf_mtod(pkt, char*),
+ pkt->outer_l2_len + pkt->outer_l3_len +
+ pkt->l2_len + pkt->l3_len);
+ rte_pktmbuf_adj(pkt, fh_len);
+ } else {
+ /* clear MF flag */
+ ipv6_frag_hdr->frag_data = rte_cpu_to_be_16(
+ (rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) &
+ 0xFFFE));
+ ipv6_hdr->payload_len += fh_len;
+ }
+ }
+
+ /* Must adjust outer header after inner IPv6 is handled. */
+ /* Update the outer IPv4 header. */
+ len = pkt->pkt_len - pkt->outer_l2_len;
+ outer_ipv4_hdr = (struct rte_ipv4_hdr *)(rte_pktmbuf_mtod(pkt, char *) +
+ pkt->outer_l2_len);
+ outer_ipv4_hdr->total_length = rte_cpu_to_be_16(len);
+
+ /* Point to the outer UDP header. */
+ len -= pkt->outer_l3_len;
+ udp_hdr = (struct rte_udp_hdr *)((char *)outer_ipv4_hdr
+ + pkt->outer_l3_len);
+ udp_hdr->dgram_len = rte_cpu_to_be_16(len);
+}
+
+int32_t
+gro_vxlan_udp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan_udp6_tbl *tbl,
+ uint64_t start_time)
+{
+ struct rte_ether_hdr *outer_eth_hdr, *eth_hdr;
+ struct rte_ipv4_hdr *outer_ipv4_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_ipv6_fragment_ext *ipv6_frag_hdr;
+ uint16_t fh_len = sizeof(*ipv6_frag_hdr);
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_vxlan_hdr *vxlan_hdr;
+ uint16_t frag_offset;
+ uint8_t is_last_frag;
+ int16_t ip_dl;
+ uint32_t ip_id;
+ uint16_t outer_ip_id;
+ uint8_t outer_is_atomic;
+
+ struct vxlan_udp6_flow_key key;
+ uint32_t cur_idx, prev_idx, item_idx;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ int cmp;
+ uint16_t hdr_len;
+ uint8_t find;
+
+ outer_eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ outer_ipv4_hdr = (struct rte_ipv4_hdr *)((char *)outer_eth_hdr +
+ pkt->outer_l2_len);
+
+ udp_hdr = (struct rte_udp_hdr *)((char *)outer_ipv4_hdr +
+ pkt->outer_l3_len);
+ vxlan_hdr = (struct rte_vxlan_hdr *)((char *)udp_hdr +
+ sizeof(struct rte_udp_hdr));
+ eth_hdr = (struct rte_ether_hdr *)((char *)vxlan_hdr +
+ sizeof(struct rte_vxlan_hdr));
+ /* l2_len = outer udp hdr len + vxlan hdr len + inner l2 len */
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)udp_hdr + pkt->l2_len);
+
+ /*
+ * Don't process the packet which has non-fragment inner IP.
+ */
+ if (ipv6_hdr->proto != IPPROTO_FRAGMENT)
+ return -1;
+
+ /* Note: l3_len includes length of extension headers */
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len;
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ if (pkt->pkt_len <= hdr_len)
+ return -1;
+
+ /*
+ * Save IPv4 ID for the packet whose DF bit is 0. For the packet
+ * whose DF bit is 1, IPv4 ID is ignored.
+ */
+ frag_offset = rte_be_to_cpu_16(outer_ipv4_hdr->fragment_offset);
+ outer_is_atomic =
+ ((frag_offset & RTE_IPV4_HDR_DF_FLAG) == RTE_IPV4_HDR_DF_FLAG);
+ outer_ip_id = outer_is_atomic ? 0 :
+ rte_be_to_cpu_16(outer_ipv4_hdr->packet_id);
+ ipv6_frag_hdr = (struct rte_ipv6_fragment_ext *)(ipv6_hdr + 1);
+ ip_dl = rte_be_to_cpu_16(ipv6_hdr->payload_len) - fh_len;
+ ip_id = rte_be_to_cpu_32(ipv6_frag_hdr->id);
+ frag_offset = get_ipv6_frag_offset(ipv6_frag_hdr);
+ is_last_frag = is_last_ipv6_frag(ipv6_frag_hdr);
+
+ rte_ether_addr_copy(&(eth_hdr->s_addr), &(key.inner_key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->d_addr), &(key.inner_key.eth_daddr));
+ gro_ipv6_addr_copy(ipv6_hdr->src_addr, key.inner_key.ip_saddr);
+ gro_ipv6_addr_copy(ipv6_hdr->dst_addr, key.inner_key.ip_daddr);
+ key.inner_key.ip_id = ip_id;
+
+ key.vxlan_hdr.vx_flags = vxlan_hdr->vx_flags;
+ key.vxlan_hdr.vx_vni = vxlan_hdr->vx_vni;
+ rte_ether_addr_copy(&(outer_eth_hdr->s_addr), &(key.outer_eth_saddr));
+ rte_ether_addr_copy(&(outer_eth_hdr->d_addr), &(key.outer_eth_daddr));
+ key.outer_ip_src_addr = outer_ipv4_hdr->src_addr;
+ key.outer_ip_dst_addr = outer_ipv4_hdr->dst_addr;
+ key.outer_src_port = udp_hdr->src_port;
+ key.outer_dst_port = udp_hdr->dst_port;
+
+ /* Search for a matched flow. */
+ max_flow_num = tbl->max_flow_num;
+ remaining_flow_num = tbl->flow_num;
+ find = 0;
+ for (i = 0; i < max_flow_num && remaining_flow_num; i++) {
+ if (tbl->flows[i].start_index != INVALID_ARRAY_INDEX) {
+ if (is_same_vxlan_udp6_flow(tbl->flows[i].key, key)) {
+ find = 1;
+ break;
+ }
+ remaining_flow_num--;
+ }
+ }
+
+ /*
+ * Can't find a matched flow. Insert a new flow and store the
+ * packet into the flow.
+ */
+ if (find == 0) {
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, frag_offset,
+ is_last_frag, outer_ip_id,
+ outer_is_atomic);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ if (insert_new_flow(tbl, &key, item_idx) ==
+ INVALID_ARRAY_INDEX) {
+ /*
+ * Fail to insert a new flow, so
+ * delete the inserted packet.
+ */
+ delete_item(tbl, item_idx, INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Check all packets in the flow and try to find a neighbor. */
+ cur_idx = tbl->flows[i].start_index;
+ prev_idx = cur_idx;
+ do {
+ cmp = udp6_check_vxlan_neighbor(&(tbl->items[cur_idx]),
+ frag_offset, ip_dl);
+ if (cmp) {
+ if (merge_two_vxlan_udp6_packets(
+ &(tbl->items[cur_idx]),
+ pkt, cmp, frag_offset,
+ is_last_frag)) {
+ return 1;
+ }
+ /*
+ * Can't merge two packets, as the packet
+ * length will be greater than the max value.
+ * Insert the packet into the flow.
+ */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ frag_offset, is_last_frag,
+ outer_ip_id,
+ outer_is_atomic)
+ == INVALID_ARRAY_INDEX)
+ return -1;
+ return 0;
+ }
+
+ /* Ensure inserted items are ordered by frag_offset */
+ if (frag_offset
+ < tbl->items[cur_idx].inner_item.frag_offset) {
+ break;
+ }
+
+ prev_idx = cur_idx;
+ cur_idx = tbl->items[cur_idx].inner_item.next_pkt_idx;
+ } while (cur_idx != INVALID_ARRAY_INDEX);
+
+ /* Can't find neighbor. Insert the packet into the flow. */
+ if (cur_idx == tbl->flows[i].start_index) {
+ /* Insert it before the first packet of the flow */
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, frag_offset,
+ is_last_frag, outer_ip_id,
+ outer_is_atomic);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ tbl->items[item_idx].inner_item.next_pkt_idx = cur_idx;
+ tbl->flows[i].start_index = item_idx;
+ } else {
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ frag_offset, is_last_frag, outer_ip_id,
+ outer_is_atomic) == INVALID_ARRAY_INDEX)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+gro_vxlan_udp6_merge_items(struct gro_vxlan_udp6_tbl *tbl,
+ uint32_t start_idx)
+{
+ uint16_t frag_offset;
+ uint8_t is_last_frag;
+ int16_t ip_dl;
+ struct rte_mbuf *pkt;
+ int cmp;
+ uint32_t item_idx;
+ uint16_t hdr_len;
+
+ item_idx = tbl->items[start_idx].inner_item.next_pkt_idx;
+ while (item_idx != INVALID_ARRAY_INDEX) {
+ pkt = tbl->items[item_idx].inner_item.firstseg;
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len;
+ ip_dl = pkt->pkt_len - hdr_len;
+ frag_offset = tbl->items[item_idx].inner_item.frag_offset;
+ is_last_frag = tbl->items[item_idx].inner_item.is_last_frag;
+ cmp = udp6_check_vxlan_neighbor(&(tbl->items[start_idx]),
+ frag_offset, ip_dl);
+ if (cmp) {
+ if (merge_two_vxlan_udp6_packets(
+ &(tbl->items[start_idx]),
+ pkt, cmp, frag_offset,
+ is_last_frag)) {
+ item_idx = delete_item(tbl, item_idx,
+ INVALID_ARRAY_INDEX);
+ tbl->items[start_idx].inner_item.next_pkt_idx
+ = item_idx;
+ } else {
+ return 0;
+ }
+ } else {
+ return 0;
+ }
+ }
+
+ return 0;
+}
+
+uint16_t
+gro_vxlan_udp6_tbl_timeout_flush(struct gro_vxlan_udp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out)
+{
+ uint16_t k = 0;
+ uint32_t i, j;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++) {
+ if (unlikely(tbl->flow_num == 0))
+ return k;
+
+ j = tbl->flows[i].start_index;
+ while (j != INVALID_ARRAY_INDEX) {
+ if (tbl->items[j].inner_item.start_time <=
+ flush_timestamp) {
+ gro_vxlan_udp6_merge_items(tbl, j);
+ out[k++] = tbl->items[j].inner_item.firstseg;
+ if (tbl->items[j].inner_item.nb_merged > 1)
+ update_vxlan_header(&(tbl->items[j]));
+ /*
+ * Delete the item and get the next packet
+ * index.
+ */
+ j = delete_item(tbl, j, INVALID_ARRAY_INDEX);
+ tbl->flows[i].start_index = j;
+ if (j == INVALID_ARRAY_INDEX)
+ tbl->flow_num--;
+
+ if (unlikely(k == nb_out))
+ return k;
+ } else
+ /*
+ * The left packets in the flow won't be
+ * timeout. Go to check other flows.
+ */
+ break;
+ }
+ }
+ return k;
+}
+
+uint32_t
+gro_vxlan_udp6_tbl_pkt_count(void *tbl)
+{
+ struct gro_vxlan_udp6_tbl *gro_tbl = tbl;
+
+ if (gro_tbl)
+ return gro_tbl->item_num;
+
+ return 0;
+}
diff --git a/lib/librte_gro/gro_vxlan_udp6.h b/lib/librte_gro/gro_vxlan_udp6.h
new file mode 100644
index 0000000..648733d
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan_udp6.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#ifndef _GRO_VXLAN_UDP6_H_
+#define _GRO_VXLAN_UDP6_H_
+
+#include "gro_udp6.h"
+
+#define GRO_VXLAN_UDP6_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/* Header fields representing a VxLAN flow */
+struct vxlan_udp6_flow_key {
+ struct udp6_flow_key inner_key;
+ struct rte_vxlan_hdr vxlan_hdr;
+
+ struct rte_ether_addr outer_eth_saddr;
+ struct rte_ether_addr outer_eth_daddr;
+
+ uint32_t outer_ip_src_addr;
+ uint32_t outer_ip_dst_addr;
+
+ /* Outer UDP ports */
+ uint16_t outer_src_port;
+ uint16_t outer_dst_port;
+
+};
+
+struct gro_vxlan_udp6_flow {
+ struct vxlan_udp6_flow_key key;
+ /*
+ * The index of the first packet in the flow. INVALID_ARRAY_INDEX
+ * indicates an empty flow.
+ */
+ uint32_t start_index;
+};
+
+struct gro_vxlan_udp6_item {
+ struct gro_udp6_item inner_item;
+ /* IPv4 ID in the outer IPv4 header */
+ uint16_t outer_ip_id;
+ /* Indicate if outer IPv4 ID can be ignored */
+ uint8_t outer_is_atomic;
+};
+
+/*
+ * VxLAN (with an outer IPv4 header and an inner UDP/IPv6 packet)
+ * reassembly table structure
+ */
+struct gro_vxlan_udp6_tbl {
+ /* item array */
+ struct gro_vxlan_udp6_item *items;
+ /* flow array */
+ struct gro_vxlan_udp6_flow *flows;
+ /* current item number */
+ uint32_t item_num;
+ /* current flow number */
+ uint32_t flow_num;
+ /* the maximum item number */
+ uint32_t max_item_num;
+ /* the maximum flow number */
+ uint32_t max_flow_num;
+};
+
+/**
+ * This function creates a IPv4 VxLAN reassembly table for IPv4 VxLAN packets
+ * which have an outer IPv4 header and an inner UDP/IPv6 packet.
+ *
+ * @param socket_id
+ * Socket index for allocating the table
+ * @param max_flow_num
+ * The maximum number of flows in the table
+ * @param max_item_per_flow
+ * The maximum number of packets per flow
+ *
+ * @return
+ * - Return the table pointer on success.
+ * - Return NULL on failure.
+ */
+void *gro_vxlan_udp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow);
+
+/**
+ * This function destroys a IPv4 VxLAN reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv4 VxLAN reassembly table
+ */
+void gro_vxlan_udp6_tbl_destroy(void *tbl);
+
+/**
+ * This function merges a IPv4 VxLAN packet which has an outer IPv4 header and
+ * an inner UDP/IPv6 packet. It does not process the packet which does not
+ * have payload.
+ *
+ * This function does not check if the packet has correct checksums and
+ * does not re-calculate checksums for the merged packet. It returns the
+ * packet if there is no available space in the table.
+ *
+ * @param pkt
+ * Packet to reassemble
+ * @param tbl
+ * Pointer pointing to the IPv4 VxLAN reassembly table
+ * @start_time
+ * The time when the packet is inserted into the table
+ *
+ * @return
+ * - Return a positive value if the packet is merged.
+ * - Return zero if the packet isn't merged but stored in the table.
+ * - Return a negative value for invalid parameters or no available
+ * space in the table.
+ */
+int32_t gro_vxlan_udp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan_udp6_tbl *tbl,
+ uint64_t start_time);
+
+/**
+ * This function flushes timeout packets in the IPv4 VxLAN reassembly table,
+ * and without updating checksums.
+ *
+ * @param tbl
+ * Pointer pointing to a IPv4 VxLAN GRO table
+ * @param flush_timestamp
+ * This function flushes packets which are inserted into the table
+ * before or at the flush_timestamp.
+ * @param out
+ * Pointer array used to keep flushed packets
+ * @param nb_out
+ * The element number in 'out'. It also determines the maximum number of
+ * packets that can be flushed finally.
+ *
+ * @return
+ * The number of flushed packets
+ */
+uint16_t gro_vxlan_udp6_tbl_timeout_flush(struct gro_vxlan_udp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out);
+
+/**
+ * This function returns the number of the packets in a IPv4 VxLAN
+ * reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv4 VxLAN reassembly table
+ *
+ * @return
+ * The number of packets in the table
+ */
+uint32_t gro_vxlan_udp6_tbl_pkt_count(void *tbl);
+#endif
diff --git a/lib/librte_gro/meson.build b/lib/librte_gro/meson.build
index 7939081..14b6b64 100644
--- a/lib/librte_gro/meson.build
+++ b/lib/librte_gro/meson.build
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
-sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c', 'gro_udp6.c')
+sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c', 'gro_udp6.c', 'gro_vxlan_udp6.c')
headers = files('rte_gro.h')
deps += ['ethdev']
diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index 13b38cc..3bb7ea1 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -17,6 +17,7 @@
#include "gro_vxlan_tcp4.h"
#include "gro_vxlan_tcp6.h"
#include "gro_vxlan_udp4.h"
+#include "gro_vxlan_udp6.h"
typedef void *(*gro_tbl_create_fn)(uint16_t socket_id,
uint16_t max_flow_num,
@@ -29,21 +30,24 @@
gro_udp4_tbl_create, gro_vxlan_udp4_tbl_create,
gro_tcp6_tbl_create, gro_vxlan_tcp6_tbl_create,
gro_vxlan6_tcp4_tbl_create, gro_vxlan6_tcp6_tbl_create,
- gro_udp6_tbl_create, NULL};
+ gro_udp6_tbl_create, gro_vxlan_udp6_tbl_create,
+ NULL};
static gro_tbl_destroy_fn tbl_destroy_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_destroy, gro_vxlan_tcp4_tbl_destroy,
gro_udp4_tbl_destroy, gro_vxlan_udp4_tbl_destroy,
gro_tcp6_tbl_destroy, gro_vxlan_tcp6_tbl_destroy,
gro_vxlan6_tcp4_tbl_destroy,
gro_vxlan6_tcp6_tbl_destroy,
- gro_udp6_tbl_destroy, NULL};
+ gro_udp6_tbl_destroy, gro_vxlan_udp6_tbl_destroy,
+ NULL};
static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_pkt_count, gro_vxlan_tcp4_tbl_pkt_count,
gro_udp4_tbl_pkt_count, gro_vxlan_udp4_tbl_pkt_count,
gro_tcp6_tbl_pkt_count, gro_vxlan_tcp6_tbl_pkt_count,
gro_vxlan6_tcp4_tbl_pkt_count,
gro_vxlan6_tcp6_tbl_pkt_count,
- gro_udp6_tbl_pkt_count, NULL};
+ gro_udp6_tbl_pkt_count, gro_vxlan_udp6_tbl_pkt_count,
+ NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
@@ -126,6 +130,19 @@
((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
(RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
+#define IS_IPV4_VXLAN_UDP6_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+ ((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
+ RTE_PTYPE_TUNNEL_VXLAN) && \
+ ((ptype & RTE_PTYPE_INNER_L4_UDP) == \
+ RTE_PTYPE_INNER_L4_UDP) && \
+ (((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6_EXT) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN)))
+
/*
* GRO context structure. It keeps the table structures, which are
* used to merge packets, for different GRO types. Before using
@@ -256,6 +273,12 @@ struct gro_ctx {
struct gro_udp6_flow udp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
struct gro_udp6_item udp6_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{0} };
+ /* Allocate a reassembly table for IPv4 VXLAN UDP/IPv6 GRO */
+ struct gro_vxlan_udp6_tbl vxlan_udp6_tbl;
+ struct gro_vxlan_udp6_flow vxlan_udp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_vxlan_udp6_item vxlan_udp6_items[RTE_GRO_MAX_BURST_ITEM_NUM]
+ = {{{0}, 0, 0} };
+
struct rte_mbuf *unprocess_pkts[nb_pkts];
uint32_t item_num;
int32_t ret;
@@ -263,7 +286,7 @@ struct gro_ctx {
uint8_t do_tcp4_gro = 0, do_vxlan_tcp_gro = 0, do_udp4_gro = 0,
do_vxlan_udp_gro = 0, do_tcp6_gro = 0, do_vxlan_tcp6_gro = 0,
do_vxlan6_tcp4_gro = 0, do_vxlan6_tcp6_gro = 0,
- do_udp6_gro = 0;
+ do_udp6_gro = 0, do_vxlan_udp6_gro = 0;
if (unlikely((param->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -273,7 +296,8 @@ struct gro_ctx {
RTE_GRO_IPV4_VXLAN_TCP_IPV6 |
RTE_GRO_IPV6_VXLAN_TCP_IPV4 |
RTE_GRO_IPV6_VXLAN_TCP_IPV6 |
- RTE_GRO_UDP_IPV6)) == 0))
+ RTE_GRO_UDP_IPV6 |
+ RTE_GRO_IPV4_VXLAN_UDP_IPV6)) == 0))
return nb_pkts;
/* Get the maximum number of packets */
@@ -398,6 +422,19 @@ struct gro_ctx {
do_udp6_gro = 1;
}
+ if (param->gro_types & RTE_GRO_IPV4_VXLAN_UDP_IPV6) {
+ for (i = 0; i < item_num; i++)
+ vxlan_udp6_flows[i].start_index = INVALID_ARRAY_INDEX;
+
+ vxlan_udp6_tbl.flows = vxlan_udp6_flows;
+ vxlan_udp6_tbl.items = vxlan_udp6_items;
+ vxlan_udp6_tbl.flow_num = 0;
+ vxlan_udp6_tbl.item_num = 0;
+ vxlan_udp6_tbl.max_flow_num = item_num;
+ vxlan_udp6_tbl.max_item_num = item_num;
+ do_vxlan_udp6_gro = 1;
+ }
+
for (i = 0; i < nb_pkts; i++) {
/*
* The timestamp is ignored, since all packets
@@ -480,6 +517,15 @@ struct gro_ctx {
nb_after_gro--;
else if (ret < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV4_VXLAN_UDP6_PKT(pkts[i]->packet_type) &&
+ do_vxlan_udp6_gro) {
+ ret = gro_vxlan_udp6_reassemble(pkts[i],
+ &vxlan_udp6_tbl, 0);
+ if (ret > 0)
+ /* Merge successfully */
+ nb_after_gro--;
+ else if (ret < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -534,6 +580,11 @@ struct gro_ctx {
&pkts[i], nb_pkts - i);
}
+ if (do_vxlan_udp6_gro) {
+ i += gro_vxlan_udp6_tbl_timeout_flush(&vxlan_udp6_tbl,
+ 0, &pkts[i], nb_pkts - i);
+ }
+
/* Copy unprocessed packets */
if (unprocess_num > 0) {
memcpy(&pkts[i], unprocess_pkts,
@@ -555,12 +606,12 @@ struct gro_ctx {
struct gro_ctx *gro_ctx = ctx;
void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl,
*vxlan_tcp6_tbl, *vxlan6_tcp4_tbl, *vxlan6_tcp6_tbl,
- *udp6_tbl;
+ *udp6_tbl, *vxlan_udp6_tbl;
uint64_t current_time;
uint16_t i, unprocess_num = 0;
uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro,
do_tcp6_gro, do_vxlan_tcp6_gro, do_vxlan6_tcp4_gro,
- do_vxlan6_tcp6_gro, do_udp6_gro;
+ do_vxlan6_tcp6_gro, do_udp6_gro, do_vxlan_udp6_gro;
if (unlikely((gro_ctx->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -570,7 +621,8 @@ struct gro_ctx {
RTE_GRO_IPV4_VXLAN_TCP_IPV6 |
RTE_GRO_IPV6_VXLAN_TCP_IPV4 |
RTE_GRO_IPV6_VXLAN_TCP_IPV6 |
- RTE_GRO_UDP_IPV6)) == 0))
+ RTE_GRO_UDP_IPV6 |
+ RTE_GRO_IPV4_VXLAN_UDP_IPV6)) == 0))
return nb_pkts;
tcp_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV4_INDEX];
@@ -582,6 +634,7 @@ struct gro_ctx {
vxlan6_tcp4_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_TCP_IPV4_INDEX];
vxlan6_tcp6_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX];
udp6_tbl = gro_ctx->tbls[RTE_GRO_UDP_IPV6_INDEX];
+ vxlan_udp6_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX];
do_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV4) ==
RTE_GRO_TCP_IPV4;
@@ -601,6 +654,8 @@ struct gro_ctx {
== RTE_GRO_IPV6_VXLAN_TCP_IPV6;
do_udp6_gro = (gro_ctx->gro_types & RTE_GRO_UDP_IPV6) ==
RTE_GRO_UDP_IPV6;
+ do_vxlan_udp6_gro = (gro_ctx->gro_types & RTE_GRO_IPV4_VXLAN_UDP_IPV6)
+ == RTE_GRO_IPV4_VXLAN_UDP_IPV6;
current_time = rte_rdtsc();
@@ -650,6 +705,11 @@ struct gro_ctx {
if (gro_udp6_reassemble(pkts[i], udp6_tbl,
current_time) < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV4_VXLAN_UDP6_PKT(pkts[i]->packet_type) &&
+ do_vxlan_udp6_gro) {
+ if (gro_vxlan_udp6_reassemble(pkts[i], vxlan_udp6_tbl,
+ current_time) < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -741,6 +801,13 @@ struct gro_ctx {
gro_ctx->tbls[RTE_GRO_UDP_IPV6_INDEX],
flush_timestamp,
&out[num], left_nb_out);
+ left_nb_out = max_nb_out - num;
+ }
+
+ if ((gro_types & RTE_GRO_IPV4_VXLAN_UDP_IPV6) && left_nb_out > 0) {
+ num += gro_vxlan_udp6_tbl_timeout_flush(gro_ctx->tbls[
+ RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX],
+ flush_timestamp, &out[num], left_nb_out);
}
return num;
diff --git a/lib/librte_gro/rte_gro.h b/lib/librte_gro/rte_gro.h
index 94ed3d3..1824ce3 100644
--- a/lib/librte_gro/rte_gro.h
+++ b/lib/librte_gro/rte_gro.h
@@ -53,6 +53,9 @@
#define RTE_GRO_UDP_IPV6_INDEX 8
#define RTE_GRO_UDP_IPV6 (1ULL << RTE_GRO_UDP_IPV6_INDEX)
/**< UDP/IPv6 GRO flag */
+#define RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX 9
+#define RTE_GRO_IPV4_VXLAN_UDP_IPV6 (1ULL << RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX)
+/**< IPv4 VxLAN UDP/IPv6 GRO flag. */
/**
* Structure used to create GRO context objects or used to pass
--
1.8.3.1
^ permalink raw reply [flat|nested] 13+ messages in thread* [dpdk-dev] [PATCH v1 7/8] gro: support IPv6 VXLAN UDP/IPv4
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
` (5 preceding siblings ...)
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 6/8] gro: support IPv4 VXLAN UDP/IPv6 yang_y_yi
@ 2020-12-21 3:50 ` yang_y_yi
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 8/8] gro: support IPv6 VXLAN UDP/IPv6 yang_y_yi
2021-03-24 21:22 ` [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN Thomas Monjalon
8 siblings, 0 replies; 13+ messages in thread
From: yang_y_yi @ 2020-12-21 3:50 UTC (permalink / raw)
To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi
From: Yi Yang <yangyi01@inspur.com>
IPv6 VXLAN UDP/IPv4 GRO can help improve UDP/IPv4
performance in IPv6 VXLAN use case.
With this enabled in DPDK, OVS DPDK can leverage it
to improve VM-to-VM UDP/IPv4 performance, it will merge
small adjacent IPv6 VXLAN UDP/IPv4 fragments to a big
IPv6 VXLAN UDP/IPv4 packet immediate after they are
received from a physical NIC. It is very helpful in OVS
DPDK VXLAN use case.
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
.../prog_guide/generic_receive_offload_lib.rst | 3 +-
doc/guides/rel_notes/release_21_02.rst | 5 +
lib/librte_gro/gro_vxlan6_udp4.c | 559 +++++++++++++++++++++
lib/librte_gro/gro_vxlan6_udp4.h | 148 ++++++
lib/librte_gro/meson.build | 2 +-
lib/librte_gro/rte_gro.c | 84 +++-
lib/librte_gro/rte_gro.h | 3 +
7 files changed, 794 insertions(+), 10 deletions(-)
create mode 100644 lib/librte_gro/gro_vxlan6_udp4.c
create mode 100644 lib/librte_gro/gro_vxlan6_udp4.h
diff --git a/doc/guides/prog_guide/generic_receive_offload_lib.rst b/doc/guides/prog_guide/generic_receive_offload_lib.rst
index 906e85f..8f48809 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -33,7 +33,8 @@ fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
Currently, the GRO library provides GRO supports for TCP/IPv4, UDP/IPv4,
UDP/IPv6, and TCP/IPv6 packets as well as VxLAN packets which contain an
outer IPv4 header and an inner TCP/IPv4, UDP/IPv4, TCP/IPv6 or UDP/IPv6
-packet or an outer IPv6 header and an inner TCP/IPv4 or TCP/IPv6 packet.
+packet or an outer IPv6 header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6
+packet.
Two Sets of API
---------------
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index 4758cea..5e3d10b 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -85,6 +85,11 @@ New Features
Added UDP/IPv6 GRO support for IPv4 VXLAN packets, this enabled UDP/IPv6
GRO support for IPv4 VXLAN use case.
+* **Added UDP/IPv4 GRO support for IPv6 VXLAN packets.**
+
+ Added UDP/IPv4 GRO support for IPv6 VXLAN packets, this enabled UDP/IPv4
+ GRO support for IPv6 VXLAN use case.
+
Removed Items
-------------
diff --git a/lib/librte_gro/gro_vxlan6_udp4.c b/lib/librte_gro/gro_vxlan6_udp4.c
new file mode 100644
index 0000000..c9e7af4
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan6_udp4.c
@@ -0,0 +1,559 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_udp.h>
+#include <rte_ip.h>
+
+#include "gro_vxlan6_udp4.h"
+
+void *
+gro_vxlan6_udp4_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow)
+{
+ struct gro_vxlan6_udp4_tbl *tbl;
+ size_t size;
+ uint32_t entries_num, i;
+
+ entries_num = max_flow_num * max_item_per_flow;
+ entries_num = RTE_MIN(entries_num, GRO_VXLAN6_UDP4_TBL_MAX_ITEM_NUM);
+
+ if (entries_num == 0)
+ return NULL;
+
+ tbl = rte_zmalloc_socket(__func__,
+ sizeof(struct gro_vxlan6_udp4_tbl),
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl == NULL)
+ return NULL;
+
+ size = sizeof(struct gro_vxlan6_udp4_item) * entries_num;
+ tbl->items = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->items == NULL) {
+ rte_free(tbl);
+ return NULL;
+ }
+ tbl->max_item_num = entries_num;
+
+ size = sizeof(struct gro_vxlan6_udp4_flow) * entries_num;
+ tbl->flows = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->flows == NULL) {
+ rte_free(tbl->items);
+ rte_free(tbl);
+ return NULL;
+ }
+
+ for (i = 0; i < entries_num; i++)
+ tbl->flows[i].start_index = INVALID_ARRAY_INDEX;
+ tbl->max_flow_num = entries_num;
+
+ return tbl;
+}
+
+void
+gro_vxlan6_udp4_tbl_destroy(void *tbl)
+{
+ struct gro_vxlan6_udp4_tbl *vxlan6_tbl = tbl;
+
+ if (vxlan6_tbl) {
+ rte_free(vxlan6_tbl->items);
+ rte_free(vxlan6_tbl->flows);
+ }
+ rte_free(vxlan6_tbl);
+}
+
+static inline uint32_t
+find_an_empty_item(struct gro_vxlan6_udp4_tbl *tbl)
+{
+ uint32_t max_item_num = tbl->max_item_num, i;
+
+ for (i = 0; i < max_item_num; i++)
+ if (tbl->items[i].inner_item.firstseg == NULL)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+find_an_empty_flow(struct gro_vxlan6_udp4_tbl *tbl)
+{
+ uint32_t max_flow_num = tbl->max_flow_num, i;
+
+ for (i = 0; i < max_flow_num; i++)
+ if (tbl->flows[i].start_index == INVALID_ARRAY_INDEX)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+insert_new_item(struct gro_vxlan6_udp4_tbl *tbl,
+ struct rte_mbuf *pkt,
+ uint64_t start_time,
+ uint32_t prev_idx,
+ uint16_t frag_offset,
+ uint8_t is_last_frag)
+{
+ uint32_t item_idx;
+
+ item_idx = find_an_empty_item(tbl);
+ if (unlikely(item_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ tbl->items[item_idx].inner_item.firstseg = pkt;
+ tbl->items[item_idx].inner_item.lastseg = rte_pktmbuf_lastseg(pkt);
+ tbl->items[item_idx].inner_item.start_time = start_time;
+ tbl->items[item_idx].inner_item.next_pkt_idx = INVALID_ARRAY_INDEX;
+ tbl->items[item_idx].inner_item.frag_offset = frag_offset;
+ tbl->items[item_idx].inner_item.is_last_frag = is_last_frag;
+ tbl->items[item_idx].inner_item.nb_merged = 1;
+ tbl->item_num++;
+
+ /* If the previous packet exists, chain the new one with it. */
+ if (prev_idx != INVALID_ARRAY_INDEX) {
+ tbl->items[item_idx].inner_item.next_pkt_idx =
+ tbl->items[prev_idx].inner_item.next_pkt_idx;
+ tbl->items[prev_idx].inner_item.next_pkt_idx = item_idx;
+ }
+
+ return item_idx;
+}
+
+static inline uint32_t
+delete_item(struct gro_vxlan6_udp4_tbl *tbl,
+ uint32_t item_idx,
+ uint32_t prev_item_idx)
+{
+ uint32_t next_idx = tbl->items[item_idx].inner_item.next_pkt_idx;
+
+ /* NULL indicates an empty item. */
+ tbl->items[item_idx].inner_item.firstseg = NULL;
+ tbl->item_num--;
+ if (prev_item_idx != INVALID_ARRAY_INDEX)
+ tbl->items[prev_item_idx].inner_item.next_pkt_idx = next_idx;
+
+ return next_idx;
+}
+
+/* Copy IPv6 addr */
+static inline void gro_ipv6_addr_copy(const uint8_t *ipv6_from,
+ uint8_t *ipv6_to)
+{
+ const uint64_t *from_words = (const uint64_t *)ipv6_from;
+ uint64_t *to_words = (uint64_t *)ipv6_to;
+
+ to_words[0] = from_words[0];
+ to_words[1] = from_words[1];
+}
+
+static inline int rte_is_same_ipv6_addr(const uint8_t *ipv6_a1,
+ const uint8_t *ipv6_a2)
+{
+ const uint64_t *w1 = (const uint64_t *)ipv6_a1;
+ const uint64_t *w2 = (const uint64_t *)ipv6_a2;
+
+ return ((w1[0] ^ w2[0]) | (w1[1] ^ w2[1])) == 0;
+}
+
+static inline uint32_t
+insert_new_flow(struct gro_vxlan6_udp4_tbl *tbl,
+ struct vxlan6_udp4_flow_key *src,
+ uint32_t item_idx)
+{
+ struct vxlan6_udp4_flow_key *dst;
+ uint32_t flow_idx;
+
+ flow_idx = find_an_empty_flow(tbl);
+ if (unlikely(flow_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ dst = &(tbl->flows[flow_idx].key);
+
+ rte_ether_addr_copy(&(src->inner_key.eth_saddr),
+ &(dst->inner_key.eth_saddr));
+ rte_ether_addr_copy(&(src->inner_key.eth_daddr),
+ &(dst->inner_key.eth_daddr));
+ dst->inner_key.ip_src_addr = src->inner_key.ip_src_addr;
+ dst->inner_key.ip_dst_addr = src->inner_key.ip_dst_addr;
+ dst->inner_key.ip_id = src->inner_key.ip_id;
+
+ dst->vxlan_hdr.vx_flags = src->vxlan_hdr.vx_flags;
+ dst->vxlan_hdr.vx_vni = src->vxlan_hdr.vx_vni;
+ rte_ether_addr_copy(&(src->outer_eth_saddr), &(dst->outer_eth_saddr));
+ rte_ether_addr_copy(&(src->outer_eth_daddr), &(dst->outer_eth_daddr));
+ gro_ipv6_addr_copy(src->outer_ip_saddr, dst->outer_ip_saddr);
+ gro_ipv6_addr_copy(src->outer_ip_daddr, dst->outer_ip_daddr);
+ dst->outer_src_port = src->outer_src_port;
+ dst->outer_dst_port = src->outer_dst_port;
+
+ tbl->flows[flow_idx].start_index = item_idx;
+ tbl->flow_num++;
+
+ return flow_idx;
+}
+
+static inline int
+is_same_vxlan6_udp4_flow(struct vxlan6_udp4_flow_key k1,
+ struct vxlan6_udp4_flow_key k2)
+{
+ /* For VxLAN packet, outer udp src port is calculated from
+ * inner packet RSS hash, udp src port of the first UDP
+ * fragment is different from one of other UDP fragments
+ * even if they are same flow, so we have to skip outer udp
+ * src port comparison here.
+ */
+ return (rte_is_same_ether_addr(&k1.outer_eth_saddr,
+ &k2.outer_eth_saddr) &&
+ rte_is_same_ether_addr(&k1.outer_eth_daddr,
+ &k2.outer_eth_daddr) &&
+ rte_is_same_ipv6_addr(k1.outer_ip_saddr,
+ k2.outer_ip_saddr) &&
+ rte_is_same_ipv6_addr(k1.outer_ip_daddr,
+ k2.outer_ip_daddr) &&
+ (k1.outer_dst_port == k2.outer_dst_port) &&
+ (k1.vxlan_hdr.vx_flags == k2.vxlan_hdr.vx_flags) &&
+ (k1.vxlan_hdr.vx_vni == k2.vxlan_hdr.vx_vni) &&
+ is_same_udp4_flow(k1.inner_key, k2.inner_key));
+}
+
+static inline int
+udp_check_vxlan6_neighbor(struct gro_vxlan6_udp4_item *item,
+ uint16_t frag_offset,
+ uint16_t ip_dl)
+{
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ int cmp;
+ uint16_t l2_offset;
+ int ret = 0;
+
+ l2_offset = pkt->outer_l2_len + pkt->outer_l3_len;
+ cmp = udp4_check_neighbor(&item->inner_item, frag_offset,
+ ip_dl, l2_offset);
+ if (cmp > 0)
+ /* Append the new packet. */
+ ret = 1;
+ else if (cmp < 0)
+ /* Prepend the new packet. */
+ ret = -1;
+
+ return ret;
+}
+
+static inline int
+merge_two_vxlan6_udp4_packets(struct gro_vxlan6_udp4_item *item,
+ struct rte_mbuf *pkt,
+ int cmp,
+ uint16_t frag_offset,
+ uint8_t is_last_frag)
+{
+ if (merge_two_udp4_packets(&item->inner_item, pkt, cmp, frag_offset,
+ is_last_frag,
+ pkt->outer_l2_len + pkt->outer_l3_len)) {
+ return 1;
+ }
+
+ return 0;
+}
+
+static inline void
+update_vxlan6_header(struct gro_vxlan6_udp4_item *item)
+{
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_ipv4_hdr *ipv4_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ uint16_t len;
+ uint16_t frag_offset;
+
+ /* Update the outer IPv6 header. */
+ len = pkt->pkt_len - pkt->outer_l2_len;
+ ipv6_hdr = (struct rte_ipv6_hdr *)(rte_pktmbuf_mtod(pkt, char *) +
+ pkt->outer_l2_len);
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(len - pkt->outer_l3_len);
+
+ /* Update the outer UDP header. */
+ len -= pkt->outer_l3_len;
+ udp_hdr = (struct rte_udp_hdr *)((char *)ipv6_hdr + pkt->outer_l3_len);
+ udp_hdr->dgram_len = rte_cpu_to_be_16(len);
+
+ /* Update the inner IPv4 header. */
+ len -= pkt->l2_len;
+ ipv4_hdr = (struct rte_ipv4_hdr *)((char *)udp_hdr + pkt->l2_len);
+ ipv4_hdr->total_length = rte_cpu_to_be_16(len);
+
+ /* Clear MF bit if it is last fragment */
+ if (item->inner_item.is_last_frag) {
+ frag_offset = rte_be_to_cpu_16(ipv4_hdr->fragment_offset);
+ ipv4_hdr->fragment_offset =
+ rte_cpu_to_be_16(frag_offset & ~RTE_IPV4_HDR_MF_FLAG);
+ }
+}
+
+int32_t
+gro_vxlan6_udp4_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan6_udp4_tbl *tbl,
+ uint64_t start_time)
+{
+ struct rte_ether_hdr *outer_eth_hdr, *eth_hdr;
+ struct rte_ipv6_hdr *outer_ipv6_hdr;
+ struct rte_ipv4_hdr *ipv4_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_vxlan_hdr *vxlan_hdr;
+ uint16_t frag_offset;
+ uint8_t is_last_frag;
+ int16_t ip_dl;
+ uint16_t ip_id;
+
+ struct vxlan6_udp4_flow_key key;
+ uint32_t cur_idx, prev_idx, item_idx;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ int cmp;
+ uint16_t hdr_len;
+ uint8_t find;
+
+ outer_eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ outer_ipv6_hdr = (struct rte_ipv6_hdr *)((char *)outer_eth_hdr +
+ pkt->outer_l2_len);
+
+ udp_hdr = (struct rte_udp_hdr *)((char *)outer_ipv6_hdr +
+ pkt->outer_l3_len);
+ vxlan_hdr = (struct rte_vxlan_hdr *)((char *)udp_hdr +
+ sizeof(struct rte_udp_hdr));
+ eth_hdr = (struct rte_ether_hdr *)((char *)vxlan_hdr +
+ sizeof(struct rte_vxlan_hdr));
+ /* l2_len = outer udp hdr len + vxlan hdr len + inner l2 len */
+ ipv4_hdr = (struct rte_ipv4_hdr *)((char *)udp_hdr + pkt->l2_len);
+
+ /*
+ * Don't process the packet which has non-fragment inner IP.
+ */
+ if (!is_ipv4_fragment(ipv4_hdr))
+ return -1;
+
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len;
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ if (pkt->pkt_len <= hdr_len)
+ return -1;
+ ip_dl = pkt->pkt_len - hdr_len;
+
+ ip_id = rte_be_to_cpu_16(ipv4_hdr->packet_id);
+ frag_offset = rte_be_to_cpu_16(ipv4_hdr->fragment_offset);
+ is_last_frag = ((frag_offset & RTE_IPV4_HDR_MF_FLAG) == 0) ? 1 : 0;
+ frag_offset = (uint16_t)(frag_offset & RTE_IPV4_HDR_OFFSET_MASK) << 3;
+
+ rte_ether_addr_copy(&(eth_hdr->s_addr), &(key.inner_key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->d_addr), &(key.inner_key.eth_daddr));
+ key.inner_key.ip_src_addr = ipv4_hdr->src_addr;
+ key.inner_key.ip_dst_addr = ipv4_hdr->dst_addr;
+ key.inner_key.ip_id = ip_id;
+
+ key.vxlan_hdr.vx_flags = vxlan_hdr->vx_flags;
+ key.vxlan_hdr.vx_vni = vxlan_hdr->vx_vni;
+ rte_ether_addr_copy(&(outer_eth_hdr->s_addr), &(key.outer_eth_saddr));
+ rte_ether_addr_copy(&(outer_eth_hdr->d_addr), &(key.outer_eth_daddr));
+ gro_ipv6_addr_copy(outer_ipv6_hdr->src_addr, key.outer_ip_saddr);
+ gro_ipv6_addr_copy(outer_ipv6_hdr->dst_addr, key.outer_ip_daddr);
+ key.outer_src_port = udp_hdr->src_port;
+ key.outer_dst_port = udp_hdr->dst_port;
+
+ /* Search for a matched flow. */
+ max_flow_num = tbl->max_flow_num;
+ remaining_flow_num = tbl->flow_num;
+ find = 0;
+ for (i = 0; i < max_flow_num && remaining_flow_num; i++) {
+ if (tbl->flows[i].start_index != INVALID_ARRAY_INDEX) {
+ if (is_same_vxlan6_udp4_flow(tbl->flows[i].key, key)) {
+ find = 1;
+ break;
+ }
+ remaining_flow_num--;
+ }
+ }
+
+ /*
+ * Can't find a matched flow. Insert a new flow and store the
+ * packet into the flow.
+ */
+ if (find == 0) {
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, frag_offset,
+ is_last_frag);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ if (insert_new_flow(tbl, &key, item_idx) ==
+ INVALID_ARRAY_INDEX) {
+ /*
+ * Fail to insert a new flow, so
+ * delete the inserted packet.
+ */
+ delete_item(tbl, item_idx, INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Check all packets in the flow and try to find a neighbor. */
+ cur_idx = tbl->flows[i].start_index;
+ prev_idx = cur_idx;
+ do {
+ cmp = udp_check_vxlan6_neighbor(&(tbl->items[cur_idx]),
+ frag_offset, ip_dl);
+ if (cmp) {
+ if (merge_two_vxlan6_udp4_packets(
+ &(tbl->items[cur_idx]),
+ pkt, cmp, frag_offset,
+ is_last_frag)) {
+ return 1;
+ }
+ /*
+ * Can't merge two packets, as the packet
+ * length will be greater than the max value.
+ * Insert the packet into the flow.
+ */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ frag_offset, is_last_frag)
+ == INVALID_ARRAY_INDEX)
+ return -1;
+ return 0;
+ }
+
+ /* Ensure inserted items are ordered by frag_offset */
+ if (frag_offset
+ < tbl->items[cur_idx].inner_item.frag_offset) {
+ break;
+ }
+
+ prev_idx = cur_idx;
+ cur_idx = tbl->items[cur_idx].inner_item.next_pkt_idx;
+ } while (cur_idx != INVALID_ARRAY_INDEX);
+
+ /* Can't find neighbor. Insert the packet into the flow. */
+ if (cur_idx == tbl->flows[i].start_index) {
+ /* Insert it before the first packet of the flow */
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, frag_offset,
+ is_last_frag);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ tbl->items[item_idx].inner_item.next_pkt_idx = cur_idx;
+ tbl->flows[i].start_index = item_idx;
+ } else {
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ frag_offset, is_last_frag)
+ == INVALID_ARRAY_INDEX)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+gro_vxlan6_udp4_merge_items(struct gro_vxlan6_udp4_tbl *tbl,
+ uint32_t start_idx)
+{
+ uint16_t frag_offset;
+ uint8_t is_last_frag;
+ int16_t ip_dl;
+ struct rte_mbuf *pkt;
+ int cmp;
+ uint32_t item_idx;
+ uint16_t hdr_len;
+
+ item_idx = tbl->items[start_idx].inner_item.next_pkt_idx;
+ while (item_idx != INVALID_ARRAY_INDEX) {
+ pkt = tbl->items[item_idx].inner_item.firstseg;
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len;
+ ip_dl = pkt->pkt_len - hdr_len;
+ frag_offset = tbl->items[item_idx].inner_item.frag_offset;
+ is_last_frag = tbl->items[item_idx].inner_item.is_last_frag;
+ cmp = udp_check_vxlan6_neighbor(&(tbl->items[start_idx]),
+ frag_offset, ip_dl);
+ if (cmp) {
+ if (merge_two_vxlan6_udp4_packets(
+ &(tbl->items[start_idx]),
+ pkt, cmp, frag_offset,
+ is_last_frag)) {
+ item_idx = delete_item(tbl, item_idx,
+ INVALID_ARRAY_INDEX);
+ tbl->items[start_idx].inner_item.next_pkt_idx
+ = item_idx;
+ } else {
+ return 0;
+ }
+ } else {
+ return 0;
+ }
+ }
+
+ return 0;
+}
+
+uint16_t
+gro_vxlan6_udp4_tbl_timeout_flush(struct gro_vxlan6_udp4_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out)
+{
+ uint16_t k = 0;
+ uint32_t i, j;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++) {
+ if (unlikely(tbl->flow_num == 0))
+ return k;
+
+ j = tbl->flows[i].start_index;
+ while (j != INVALID_ARRAY_INDEX) {
+ if (tbl->items[j].inner_item.start_time <=
+ flush_timestamp) {
+ gro_vxlan6_udp4_merge_items(tbl, j);
+ out[k++] = tbl->items[j].inner_item.firstseg;
+ if (tbl->items[j].inner_item.nb_merged > 1)
+ update_vxlan6_header(&(tbl->items[j]));
+ /*
+ * Delete the item and get the next packet
+ * index.
+ */
+ j = delete_item(tbl, j, INVALID_ARRAY_INDEX);
+ tbl->flows[i].start_index = j;
+ if (j == INVALID_ARRAY_INDEX)
+ tbl->flow_num--;
+
+ if (unlikely(k == nb_out))
+ return k;
+ } else
+ /*
+ * The left packets in the flow won't be
+ * timeout. Go to check other flows.
+ */
+ break;
+ }
+ }
+ return k;
+}
+
+uint32_t
+gro_vxlan6_udp4_tbl_pkt_count(void *tbl)
+{
+ struct gro_vxlan6_udp4_tbl *gro_tbl = tbl;
+
+ if (gro_tbl)
+ return gro_tbl->item_num;
+
+ return 0;
+}
diff --git a/lib/librte_gro/gro_vxlan6_udp4.h b/lib/librte_gro/gro_vxlan6_udp4.h
new file mode 100644
index 0000000..14dc2b6
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan6_udp4.h
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#ifndef _GRO_VXLAN6_UDP4_H_
+#define _GRO_VXLAN6_UDP4_H_
+
+#include "gro_udp4.h"
+
+#define GRO_VXLAN6_UDP4_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/* Header fields representing a IPv6 VxLAN flow */
+struct vxlan6_udp4_flow_key {
+ struct udp4_flow_key inner_key;
+ struct rte_vxlan_hdr vxlan_hdr;
+
+ struct rte_ether_addr outer_eth_saddr;
+ struct rte_ether_addr outer_eth_daddr;
+
+ uint8_t outer_ip_saddr[16];
+ uint8_t outer_ip_daddr[16];
+
+ /* Outer UDP ports */
+ uint16_t outer_src_port;
+ uint16_t outer_dst_port;
+
+};
+
+struct gro_vxlan6_udp4_flow {
+ struct vxlan6_udp4_flow_key key;
+ /*
+ * The index of the first packet in the flow. INVALID_ARRAY_INDEX
+ * indicates an empty flow.
+ */
+ uint32_t start_index;
+};
+
+struct gro_vxlan6_udp4_item {
+ struct gro_udp4_item inner_item;
+};
+
+/*
+ * IPv6 VxLAN (with an outer IPv6 header and an inner UDP/IPv4 packet)
+ * reassembly table structure
+ */
+struct gro_vxlan6_udp4_tbl {
+ /* item array */
+ struct gro_vxlan6_udp4_item *items;
+ /* flow array */
+ struct gro_vxlan6_udp4_flow *flows;
+ /* current item number */
+ uint32_t item_num;
+ /* current flow number */
+ uint32_t flow_num;
+ /* the maximum item number */
+ uint32_t max_item_num;
+ /* the maximum flow number */
+ uint32_t max_flow_num;
+};
+
+/**
+ * This function creates a IPv6 VxLAN reassembly table for IPv6 VxLAN packets
+ * which have an outer IPv6 header and an inner UDP/IPv4 packet.
+ *
+ * @param socket_id
+ * Socket index for allocating the table
+ * @param max_flow_num
+ * The maximum number of flows in the table
+ * @param max_item_per_flow
+ * The maximum number of packets per flow
+ *
+ * @return
+ * - Return the table pointer on success.
+ * - Return NULL on failure.
+ */
+void *gro_vxlan6_udp4_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow);
+
+/**
+ * This function destroys a IPv6 VxLAN reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ */
+void gro_vxlan6_udp4_tbl_destroy(void *tbl);
+
+/**
+ * This function merges a IPv6 VxLAN packet which has an outer IPv6 header and
+ * an inner UDP/IPv4 packet. It does not process the packet which does not
+ * have payload.
+ *
+ * This function does not check if the packet has correct checksums and
+ * does not re-calculate checksums for the merged packet. It returns the
+ * packet if there is no available space in the table.
+ *
+ * @param pkt
+ * Packet to reassemble
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ * @start_time
+ * The time when the packet is inserted into the table
+ *
+ * @return
+ * - Return a positive value if the packet is merged.
+ * - Return zero if the packet isn't merged but stored in the table.
+ * - Return a negative value for invalid parameters or no available
+ * space in the table.
+ */
+int32_t gro_vxlan6_udp4_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan6_udp4_tbl *tbl,
+ uint64_t start_time);
+
+/**
+ * This function flushes timeout packets in the IPv6 VxLAN reassembly table,
+ * and without updating checksums.
+ *
+ * @param tbl
+ * Pointer pointing to a IPv6 VxLAN GRO table
+ * @param flush_timestamp
+ * This function flushes packets which are inserted into the table
+ * before or at the flush_timestamp.
+ * @param out
+ * Pointer array used to keep flushed packets
+ * @param nb_out
+ * The element number in 'out'. It also determines the maximum number of
+ * packets that can be flushed finally.
+ *
+ * @return
+ * The number of flushed packets
+ */
+uint16_t gro_vxlan6_udp4_tbl_timeout_flush(struct gro_vxlan6_udp4_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out);
+
+/**
+ * This function returns the number of the packets in a IPv6 VxLAN
+ * reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ *
+ * @return
+ * The number of packets in the table
+ */
+uint32_t gro_vxlan6_udp4_tbl_pkt_count(void *tbl);
+#endif
diff --git a/lib/librte_gro/meson.build b/lib/librte_gro/meson.build
index 14b6b64..e23197d 100644
--- a/lib/librte_gro/meson.build
+++ b/lib/librte_gro/meson.build
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
-sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c', 'gro_udp6.c', 'gro_vxlan_udp6.c')
+sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c', 'gro_udp6.c', 'gro_vxlan_udp6.c', 'gro_vxlan6_udp4.c')
headers = files('rte_gro.h')
deps += ['ethdev']
diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index 3bb7ea1..021a49e 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -14,6 +14,7 @@
#include "gro_udp6.h"
#include "gro_vxlan6_tcp4.h"
#include "gro_vxlan6_tcp6.h"
+#include "gro_vxlan6_udp4.h"
#include "gro_vxlan_tcp4.h"
#include "gro_vxlan_tcp6.h"
#include "gro_vxlan_udp4.h"
@@ -31,7 +32,7 @@
gro_tcp6_tbl_create, gro_vxlan_tcp6_tbl_create,
gro_vxlan6_tcp4_tbl_create, gro_vxlan6_tcp6_tbl_create,
gro_udp6_tbl_create, gro_vxlan_udp6_tbl_create,
- NULL};
+ gro_vxlan6_udp4_tbl_create, NULL};
static gro_tbl_destroy_fn tbl_destroy_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_destroy, gro_vxlan_tcp4_tbl_destroy,
gro_udp4_tbl_destroy, gro_vxlan_udp4_tbl_destroy,
@@ -39,7 +40,7 @@
gro_vxlan6_tcp4_tbl_destroy,
gro_vxlan6_tcp6_tbl_destroy,
gro_udp6_tbl_destroy, gro_vxlan_udp6_tbl_destroy,
- NULL};
+ gro_vxlan6_udp4_tbl_destroy, NULL};
static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_pkt_count, gro_vxlan_tcp4_tbl_pkt_count,
gro_udp4_tbl_pkt_count, gro_vxlan_udp4_tbl_pkt_count,
@@ -47,7 +48,7 @@
gro_vxlan6_tcp4_tbl_pkt_count,
gro_vxlan6_tcp6_tbl_pkt_count,
gro_udp6_tbl_pkt_count, gro_vxlan_udp6_tbl_pkt_count,
- NULL};
+ gro_vxlan6_udp4_tbl_pkt_count, NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
@@ -143,6 +144,19 @@
((ptype & RTE_PTYPE_INNER_L3_MASK) == \
RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN)))
+#define IS_IPV6_VXLAN_UDP4_PKT(ptype) (RTE_ETH_IS_IPV6_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+ ((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
+ RTE_PTYPE_TUNNEL_VXLAN) && \
+ ((ptype & RTE_PTYPE_INNER_L4_UDP) == \
+ RTE_PTYPE_INNER_L4_UDP) && \
+ (((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV4) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV4_EXT) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
+
/*
* GRO context structure. It keeps the table structures, which are
* used to merge packets, for different GRO types. Before using
@@ -279,6 +293,13 @@ struct gro_ctx {
struct gro_vxlan_udp6_item vxlan_udp6_items[RTE_GRO_MAX_BURST_ITEM_NUM]
= {{{0}, 0, 0} };
+ /* Allocate a reassembly table for IPv6 VXLAN UDP/IPv4 GRO */
+ struct gro_vxlan6_udp4_tbl vxlan6_udp4_tbl;
+ struct gro_vxlan6_udp4_flow
+ vxlan6_udp4_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_vxlan6_udp4_item
+ vxlan6_udp4_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{{0}} };
+
struct rte_mbuf *unprocess_pkts[nb_pkts];
uint32_t item_num;
int32_t ret;
@@ -286,7 +307,8 @@ struct gro_ctx {
uint8_t do_tcp4_gro = 0, do_vxlan_tcp_gro = 0, do_udp4_gro = 0,
do_vxlan_udp_gro = 0, do_tcp6_gro = 0, do_vxlan_tcp6_gro = 0,
do_vxlan6_tcp4_gro = 0, do_vxlan6_tcp6_gro = 0,
- do_udp6_gro = 0, do_vxlan_udp6_gro = 0;
+ do_udp6_gro = 0, do_vxlan_udp6_gro = 0,
+ do_vxlan6_udp4_gro = 0;
if (unlikely((param->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -297,7 +319,8 @@ struct gro_ctx {
RTE_GRO_IPV6_VXLAN_TCP_IPV4 |
RTE_GRO_IPV6_VXLAN_TCP_IPV6 |
RTE_GRO_UDP_IPV6 |
- RTE_GRO_IPV4_VXLAN_UDP_IPV6)) == 0))
+ RTE_GRO_IPV4_VXLAN_UDP_IPV6 |
+ RTE_GRO_IPV6_VXLAN_UDP_IPV4)) == 0))
return nb_pkts;
/* Get the maximum number of packets */
@@ -435,6 +458,19 @@ struct gro_ctx {
do_vxlan_udp6_gro = 1;
}
+ if (param->gro_types & RTE_GRO_IPV6_VXLAN_UDP_IPV4) {
+ for (i = 0; i < item_num; i++)
+ vxlan6_udp4_flows[i].start_index = INVALID_ARRAY_INDEX;
+
+ vxlan6_udp4_tbl.flows = vxlan6_udp4_flows;
+ vxlan6_udp4_tbl.items = vxlan6_udp4_items;
+ vxlan6_udp4_tbl.flow_num = 0;
+ vxlan6_udp4_tbl.item_num = 0;
+ vxlan6_udp4_tbl.max_flow_num = item_num;
+ vxlan6_udp4_tbl.max_item_num = item_num;
+ do_vxlan6_udp4_gro = 1;
+ }
+
for (i = 0; i < nb_pkts; i++) {
/*
* The timestamp is ignored, since all packets
@@ -526,6 +562,15 @@ struct gro_ctx {
nb_after_gro--;
else if (ret < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_VXLAN_UDP4_PKT(pkts[i]->packet_type) &&
+ do_vxlan6_udp4_gro) {
+ ret = gro_vxlan6_udp4_reassemble(pkts[i],
+ &vxlan6_udp4_tbl, 0);
+ if (ret > 0)
+ /* Merge successfully */
+ nb_after_gro--;
+ else if (ret < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -585,6 +630,12 @@ struct gro_ctx {
0, &pkts[i], nb_pkts - i);
}
+ if (do_vxlan6_udp4_gro) {
+ i += gro_vxlan6_udp4_tbl_timeout_flush(&vxlan6_udp4_tbl,
+ 0, &pkts[i], nb_pkts - i);
+
+ }
+
/* Copy unprocessed packets */
if (unprocess_num > 0) {
memcpy(&pkts[i], unprocess_pkts,
@@ -606,12 +657,13 @@ struct gro_ctx {
struct gro_ctx *gro_ctx = ctx;
void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl,
*vxlan_tcp6_tbl, *vxlan6_tcp4_tbl, *vxlan6_tcp6_tbl,
- *udp6_tbl, *vxlan_udp6_tbl;
+ *udp6_tbl, *vxlan_udp6_tbl, *vxlan6_udp4_tbl;
uint64_t current_time;
uint16_t i, unprocess_num = 0;
uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro,
do_tcp6_gro, do_vxlan_tcp6_gro, do_vxlan6_tcp4_gro,
- do_vxlan6_tcp6_gro, do_udp6_gro, do_vxlan_udp6_gro;
+ do_vxlan6_tcp6_gro, do_udp6_gro, do_vxlan_udp6_gro,
+ do_vxlan6_udp4_gro;
if (unlikely((gro_ctx->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -622,7 +674,8 @@ struct gro_ctx {
RTE_GRO_IPV6_VXLAN_TCP_IPV4 |
RTE_GRO_IPV6_VXLAN_TCP_IPV6 |
RTE_GRO_UDP_IPV6 |
- RTE_GRO_IPV4_VXLAN_UDP_IPV6)) == 0))
+ RTE_GRO_IPV4_VXLAN_UDP_IPV6 |
+ RTE_GRO_IPV6_VXLAN_UDP_IPV4)) == 0))
return nb_pkts;
tcp_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV4_INDEX];
@@ -635,6 +688,7 @@ struct gro_ctx {
vxlan6_tcp6_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_TCP_IPV6_INDEX];
udp6_tbl = gro_ctx->tbls[RTE_GRO_UDP_IPV6_INDEX];
vxlan_udp6_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX];
+ vxlan6_udp4_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_UDP_IPV4_INDEX];
do_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV4) ==
RTE_GRO_TCP_IPV4;
@@ -656,6 +710,8 @@ struct gro_ctx {
RTE_GRO_UDP_IPV6;
do_vxlan_udp6_gro = (gro_ctx->gro_types & RTE_GRO_IPV4_VXLAN_UDP_IPV6)
== RTE_GRO_IPV4_VXLAN_UDP_IPV6;
+ do_vxlan6_udp4_gro = (gro_ctx->gro_types & RTE_GRO_IPV6_VXLAN_UDP_IPV4)
+ == RTE_GRO_IPV6_VXLAN_UDP_IPV4;
current_time = rte_rdtsc();
@@ -710,6 +766,11 @@ struct gro_ctx {
if (gro_vxlan_udp6_reassemble(pkts[i], vxlan_udp6_tbl,
current_time) < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_VXLAN_UDP4_PKT(pkts[i]->packet_type) &&
+ do_vxlan6_udp4_gro) {
+ if (gro_vxlan6_udp4_reassemble(pkts[i], vxlan6_udp4_tbl,
+ current_time) < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -808,6 +869,13 @@ struct gro_ctx {
num += gro_vxlan_udp6_tbl_timeout_flush(gro_ctx->tbls[
RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX],
flush_timestamp, &out[num], left_nb_out);
+ left_nb_out = max_nb_out - num;
+ }
+
+ if ((gro_types & RTE_GRO_IPV6_VXLAN_UDP_IPV4) && left_nb_out > 0) {
+ num += gro_vxlan6_udp4_tbl_timeout_flush(gro_ctx->tbls[
+ RTE_GRO_IPV6_VXLAN_UDP_IPV4_INDEX],
+ flush_timestamp, &out[num], left_nb_out);
}
return num;
diff --git a/lib/librte_gro/rte_gro.h b/lib/librte_gro/rte_gro.h
index 1824ce3..ddcded6 100644
--- a/lib/librte_gro/rte_gro.h
+++ b/lib/librte_gro/rte_gro.h
@@ -56,6 +56,9 @@
#define RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX 9
#define RTE_GRO_IPV4_VXLAN_UDP_IPV6 (1ULL << RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX)
/**< IPv4 VxLAN UDP/IPv6 GRO flag. */
+#define RTE_GRO_IPV6_VXLAN_UDP_IPV4_INDEX 10
+#define RTE_GRO_IPV6_VXLAN_UDP_IPV4 (1ULL << RTE_GRO_IPV6_VXLAN_UDP_IPV4_INDEX)
+/**< IPv6 VxLAN UDP/IPv4 GRO flag. */
/**
* Structure used to create GRO context objects or used to pass
--
1.8.3.1
^ permalink raw reply [flat|nested] 13+ messages in thread* [dpdk-dev] [PATCH v1 8/8] gro: support IPv6 VXLAN UDP/IPv6
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
` (6 preceding siblings ...)
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 7/8] gro: support IPv6 VXLAN UDP/IPv4 yang_y_yi
@ 2020-12-21 3:50 ` yang_y_yi
2021-03-24 21:22 ` [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN Thomas Monjalon
8 siblings, 0 replies; 13+ messages in thread
From: yang_y_yi @ 2020-12-21 3:50 UTC (permalink / raw)
To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi
From: Yi Yang <yangyi01@inspur.com>
IPv6 VXLAN UDP/IPv6 GRO can help improve UDP/IPv6
performance in IPv6 VXLAN use case.
With this enabled in DPDK, OVS DPDK can leverage it
to improve VM-to-VM UDP/IPv6 performance, it will merge
small adjacent IPv6 VXLAN UDP/IPv6 fragments to a big
IPv6 VXLAN UDP/IPv6 packet immediate after they are
received from a physical NIC. It is very helpful in OVS
DPDK IPv6 VXLAN use case.
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
.../prog_guide/generic_receive_offload_lib.rst | 4 +-
doc/guides/rel_notes/release_21_02.rst | 5 +
lib/librte_gro/gro_vxlan6_udp6.c | 589 +++++++++++++++++++++
lib/librte_gro/gro_vxlan6_udp6.h | 148 ++++++
lib/librte_gro/meson.build | 2 +-
lib/librte_gro/rte_gro.c | 84 ++-
lib/librte_gro/rte_gro.h | 3 +
7 files changed, 824 insertions(+), 11 deletions(-)
create mode 100644 lib/librte_gro/gro_vxlan6_udp6.c
create mode 100644 lib/librte_gro/gro_vxlan6_udp6.h
diff --git a/doc/guides/prog_guide/generic_receive_offload_lib.rst b/doc/guides/prog_guide/generic_receive_offload_lib.rst
index 8f48809..971323d 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -33,8 +33,8 @@ fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
Currently, the GRO library provides GRO supports for TCP/IPv4, UDP/IPv4,
UDP/IPv6, and TCP/IPv6 packets as well as VxLAN packets which contain an
outer IPv4 header and an inner TCP/IPv4, UDP/IPv4, TCP/IPv6 or UDP/IPv6
-packet or an outer IPv6 header and an inner TCP/IPv4, UDP/IPv4 or TCP/IPv6
-packet.
+packet or an outer IPv6 header and an inner TCP/IPv4, UDP/IPv4, TCP/IPv6
+or UDP/IPv6 packet.
Two Sets of API
---------------
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index 5e3d10b..991aa51 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -90,6 +90,11 @@ New Features
Added UDP/IPv4 GRO support for IPv6 VXLAN packets, this enabled UDP/IPv4
GRO support for IPv6 VXLAN use case.
+* **Added UDP/IPv6 GRO support for IPv6 VXLAN packets.**
+
+ Added UDP/IPv6 GRO support for IPv6 VXLAN packets, this enabled UDP/IPv6
+ GRO support for IPv6 VXLAN use case.
+
Removed Items
-------------
diff --git a/lib/librte_gro/gro_vxlan6_udp6.c b/lib/librte_gro/gro_vxlan6_udp6.c
new file mode 100644
index 0000000..c038e13
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan6_udp6.c
@@ -0,0 +1,589 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_udp.h>
+#include <rte_ip.h>
+
+#include "gro_vxlan6_udp6.h"
+
+void *
+gro_vxlan6_udp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow)
+{
+ struct gro_vxlan6_udp6_tbl *tbl;
+ size_t size;
+ uint32_t entries_num, i;
+
+ entries_num = max_flow_num * max_item_per_flow;
+ entries_num = RTE_MIN(entries_num, GRO_VXLAN6_UDP6_TBL_MAX_ITEM_NUM);
+
+ if (entries_num == 0)
+ return NULL;
+
+ tbl = rte_zmalloc_socket(__func__,
+ sizeof(struct gro_vxlan6_udp6_tbl),
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl == NULL)
+ return NULL;
+
+ size = sizeof(struct gro_vxlan6_udp6_item) * entries_num;
+ tbl->items = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->items == NULL) {
+ rte_free(tbl);
+ return NULL;
+ }
+ tbl->max_item_num = entries_num;
+
+ size = sizeof(struct gro_vxlan6_udp6_flow) * entries_num;
+ tbl->flows = rte_zmalloc_socket(__func__,
+ size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (tbl->flows == NULL) {
+ rte_free(tbl->items);
+ rte_free(tbl);
+ return NULL;
+ }
+
+ for (i = 0; i < entries_num; i++)
+ tbl->flows[i].start_index = INVALID_ARRAY_INDEX;
+ tbl->max_flow_num = entries_num;
+
+ return tbl;
+}
+
+void
+gro_vxlan6_udp6_tbl_destroy(void *tbl)
+{
+ struct gro_vxlan6_udp6_tbl *vxlan6_tbl = tbl;
+
+ if (vxlan6_tbl) {
+ rte_free(vxlan6_tbl->items);
+ rte_free(vxlan6_tbl->flows);
+ }
+ rte_free(vxlan6_tbl);
+}
+
+static inline uint32_t
+find_an_empty_item(struct gro_vxlan6_udp6_tbl *tbl)
+{
+ uint32_t max_item_num = tbl->max_item_num, i;
+
+ for (i = 0; i < max_item_num; i++)
+ if (tbl->items[i].inner_item.firstseg == NULL)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+find_an_empty_flow(struct gro_vxlan6_udp6_tbl *tbl)
+{
+ uint32_t max_flow_num = tbl->max_flow_num, i;
+
+ for (i = 0; i < max_flow_num; i++)
+ if (tbl->flows[i].start_index == INVALID_ARRAY_INDEX)
+ return i;
+ return INVALID_ARRAY_INDEX;
+}
+
+static inline uint32_t
+insert_new_item(struct gro_vxlan6_udp6_tbl *tbl,
+ struct rte_mbuf *pkt,
+ uint64_t start_time,
+ uint32_t prev_idx,
+ uint16_t frag_offset,
+ uint8_t is_last_frag)
+{
+ uint32_t item_idx;
+
+ item_idx = find_an_empty_item(tbl);
+ if (unlikely(item_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ tbl->items[item_idx].inner_item.firstseg = pkt;
+ tbl->items[item_idx].inner_item.lastseg = rte_pktmbuf_lastseg(pkt);
+ tbl->items[item_idx].inner_item.start_time = start_time;
+ tbl->items[item_idx].inner_item.next_pkt_idx = INVALID_ARRAY_INDEX;
+ tbl->items[item_idx].inner_item.frag_offset = frag_offset;
+ tbl->items[item_idx].inner_item.is_last_frag = is_last_frag;
+ tbl->items[item_idx].inner_item.nb_merged = 1;
+ tbl->item_num++;
+
+ /* If the previous packet exists, chain the new one with it. */
+ if (prev_idx != INVALID_ARRAY_INDEX) {
+ tbl->items[item_idx].inner_item.next_pkt_idx =
+ tbl->items[prev_idx].inner_item.next_pkt_idx;
+ tbl->items[prev_idx].inner_item.next_pkt_idx = item_idx;
+ }
+
+ return item_idx;
+}
+
+static inline uint32_t
+delete_item(struct gro_vxlan6_udp6_tbl *tbl,
+ uint32_t item_idx,
+ uint32_t prev_item_idx)
+{
+ uint32_t next_idx = tbl->items[item_idx].inner_item.next_pkt_idx;
+
+ /* NULL indicates an empty item. */
+ tbl->items[item_idx].inner_item.firstseg = NULL;
+ tbl->item_num--;
+ if (prev_item_idx != INVALID_ARRAY_INDEX)
+ tbl->items[prev_item_idx].inner_item.next_pkt_idx = next_idx;
+
+ return next_idx;
+}
+
+/* Copy IPv6 addr */
+static inline void gro_ipv6_addr_copy(const uint8_t *ipv6_from,
+ uint8_t *ipv6_to)
+{
+ const uint64_t *from_words = (const uint64_t *)ipv6_from;
+ uint64_t *to_words = (uint64_t *)ipv6_to;
+
+ to_words[0] = from_words[0];
+ to_words[1] = from_words[1];
+}
+
+static inline uint32_t
+insert_new_flow(struct gro_vxlan6_udp6_tbl *tbl,
+ struct vxlan6_udp6_flow_key *src,
+ uint32_t item_idx)
+{
+ struct vxlan6_udp6_flow_key *dst;
+ uint32_t flow_idx;
+
+ flow_idx = find_an_empty_flow(tbl);
+ if (unlikely(flow_idx == INVALID_ARRAY_INDEX))
+ return INVALID_ARRAY_INDEX;
+
+ dst = &(tbl->flows[flow_idx].key);
+
+ rte_ether_addr_copy(&(src->inner_key.eth_saddr),
+ &(dst->inner_key.eth_saddr));
+ rte_ether_addr_copy(&(src->inner_key.eth_daddr),
+ &(dst->inner_key.eth_daddr));
+ gro_ipv6_addr_copy(src->inner_key.ip_saddr, dst->inner_key.ip_saddr);
+ gro_ipv6_addr_copy(src->inner_key.ip_daddr, dst->inner_key.ip_daddr);
+ dst->inner_key.ip_id = src->inner_key.ip_id;
+
+ dst->vxlan_hdr.vx_flags = src->vxlan_hdr.vx_flags;
+ dst->vxlan_hdr.vx_vni = src->vxlan_hdr.vx_vni;
+ rte_ether_addr_copy(&(src->outer_eth_saddr), &(dst->outer_eth_saddr));
+ rte_ether_addr_copy(&(src->outer_eth_daddr), &(dst->outer_eth_daddr));
+ gro_ipv6_addr_copy(src->outer_ip_saddr, dst->outer_ip_saddr);
+ gro_ipv6_addr_copy(src->outer_ip_daddr, dst->outer_ip_daddr);
+ dst->outer_src_port = src->outer_src_port;
+ dst->outer_dst_port = src->outer_dst_port;
+
+ tbl->flows[flow_idx].start_index = item_idx;
+ tbl->flow_num++;
+
+ return flow_idx;
+}
+
+static inline int
+is_same_vxlan6_udp6_flow(struct vxlan6_udp6_flow_key k1,
+ struct vxlan6_udp6_flow_key k2)
+{
+ /* For VxLAN packet, outer udp src port is calculated from
+ * inner packet RSS hash, udp src port of the first UDP
+ * fragment is different from one of other UDP fragments
+ * even if they are same flow, so we have to skip outer udp
+ * src port comparison here.
+ */
+ return (rte_is_same_ether_addr(&k1.outer_eth_saddr,
+ &k2.outer_eth_saddr) &&
+ rte_is_same_ether_addr(&k1.outer_eth_daddr,
+ &k2.outer_eth_daddr) &&
+ rte_is_same_ipv6_addr(k1.outer_ip_saddr,
+ k2.outer_ip_saddr) &&
+ rte_is_same_ipv6_addr(k1.outer_ip_daddr,
+ k2.outer_ip_daddr) &&
+ (k1.outer_dst_port == k2.outer_dst_port) &&
+ (k1.vxlan_hdr.vx_flags == k2.vxlan_hdr.vx_flags) &&
+ (k1.vxlan_hdr.vx_vni == k2.vxlan_hdr.vx_vni) &&
+ is_same_udp6_flow(k1.inner_key, k2.inner_key));
+}
+
+static inline int
+udp6_check_vxlan6_neighbor(struct gro_vxlan6_udp6_item *item,
+ uint16_t frag_offset,
+ uint16_t ip_dl)
+{
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ int cmp;
+ uint16_t l2_offset;
+ int ret = 0;
+
+ l2_offset = pkt->outer_l2_len + pkt->outer_l3_len;
+ cmp = udp6_check_neighbor(&item->inner_item, frag_offset,
+ ip_dl, l2_offset);
+ if (cmp > 0)
+ /* Append the new packet. */
+ ret = 1;
+ else if (cmp < 0)
+ /* Prepend the new packet. */
+ ret = -1;
+
+ return ret;
+}
+
+static inline int
+merge_two_vxlan6_udp6_packets(struct gro_vxlan6_udp6_item *item,
+ struct rte_mbuf *pkt,
+ int cmp,
+ uint16_t frag_offset,
+ uint8_t is_last_frag)
+{
+ if (merge_two_udp6_packets(&item->inner_item, pkt, cmp, frag_offset,
+ is_last_frag,
+ pkt->outer_l2_len + pkt->outer_l3_len)) {
+ return 1;
+ }
+
+ return 0;
+}
+
+static inline uint16_t
+get_ipv6_frag_offset(struct rte_ipv6_fragment_ext *ipv6_frag_hdr)
+{
+ return ((rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) >> 3) * 8);
+}
+
+static inline uint8_t
+is_last_ipv6_frag(struct rte_ipv6_fragment_ext *ipv6_frag_hdr)
+{
+ return (rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) & 0x0001);
+}
+
+static inline void
+update_vxlan6_header(struct gro_vxlan6_udp6_item *item)
+{
+ struct rte_ipv6_hdr *outer_ipv6_hdr, *ipv6_hdr;
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_ipv6_fragment_ext *ipv6_frag_hdr;
+ size_t fh_len = sizeof(*ipv6_frag_hdr);
+ struct rte_mbuf *pkt = item->inner_item.firstseg;
+ uint16_t len;
+
+ /* Position to inner IPv6 header first */
+ ipv6_hdr = (struct rte_ipv6_hdr *)rte_pktmbuf_mtod_offset(pkt, char *,
+ pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len);
+ len = pkt->pkt_len - pkt->outer_l2_len - pkt->outer_l3_len
+ - pkt->l2_len;
+ ipv6_hdr->payload_len = rte_cpu_to_be_16(len - pkt->l3_len);
+
+ /* Remove fragment extension header or clear MF flag */
+ if (item->inner_item.is_last_frag
+ && (ipv6_hdr->proto == IPPROTO_FRAGMENT)) {
+ uint16_t ip_ofs;
+
+ ipv6_frag_hdr = (struct rte_ipv6_fragment_ext *)(ipv6_hdr + 1);
+ ip_ofs = get_ipv6_frag_offset(ipv6_frag_hdr);
+ if (ip_ofs == 0) {
+ ipv6_hdr->proto = ipv6_frag_hdr->next_header;
+ pkt->l3_len -= fh_len;
+
+ /* Remove IPv6 fragment extension header */
+ memmove(rte_pktmbuf_mtod_offset(pkt, char *, fh_len),
+ rte_pktmbuf_mtod(pkt, char*),
+ pkt->outer_l2_len + pkt->outer_l3_len +
+ pkt->l2_len + pkt->l3_len);
+ rte_pktmbuf_adj(pkt, fh_len);
+ } else {
+ /* clear MF flag */
+ ipv6_frag_hdr->frag_data = rte_cpu_to_be_16(
+ (rte_be_to_cpu_16(ipv6_frag_hdr->frag_data) &
+ 0xFFFE));
+ ipv6_hdr->payload_len += fh_len;
+ }
+ }
+
+ /* Must adjust outer payload_len after inner IPv6 is handled. */
+ /* Update the outer IPv6 header. */
+ len = pkt->pkt_len - pkt->outer_l2_len;
+ outer_ipv6_hdr = (struct rte_ipv6_hdr *)(rte_pktmbuf_mtod(pkt, char *) +
+ pkt->outer_l2_len);
+ outer_ipv6_hdr->payload_len = rte_cpu_to_be_16(len
+ - pkt->outer_l3_len);
+
+ /* Point to the outer UDP header. */
+ len -= pkt->outer_l3_len;
+ udp_hdr = (struct rte_udp_hdr *)((char *)outer_ipv6_hdr
+ + pkt->outer_l3_len);
+ udp_hdr->dgram_len = rte_cpu_to_be_16(len);
+}
+
+int32_t
+gro_vxlan6_udp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan6_udp6_tbl *tbl,
+ uint64_t start_time)
+{
+ struct rte_ether_hdr *outer_eth_hdr, *eth_hdr;
+ struct rte_ipv6_hdr *outer_ipv6_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_ipv6_fragment_ext *ipv6_frag_hdr;
+ uint16_t fh_len = sizeof(*ipv6_frag_hdr);
+ struct rte_udp_hdr *udp_hdr;
+ struct rte_vxlan_hdr *vxlan_hdr;
+ uint16_t frag_offset;
+ uint8_t is_last_frag;
+ int16_t ip_dl;
+ uint32_t ip_id;
+
+ struct vxlan6_udp6_flow_key key;
+ uint32_t cur_idx, prev_idx, item_idx;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ int cmp;
+ uint16_t hdr_len;
+ uint8_t find;
+
+ outer_eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ outer_ipv6_hdr = (struct rte_ipv6_hdr *)((char *)outer_eth_hdr +
+ pkt->outer_l2_len);
+
+ udp_hdr = (struct rte_udp_hdr *)((char *)outer_ipv6_hdr +
+ pkt->outer_l3_len);
+ vxlan_hdr = (struct rte_vxlan_hdr *)((char *)udp_hdr +
+ sizeof(struct rte_udp_hdr));
+ eth_hdr = (struct rte_ether_hdr *)((char *)vxlan_hdr +
+ sizeof(struct rte_vxlan_hdr));
+ /* l2_len = outer udp hdr len + vxlan hdr len + inner l2 len */
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)udp_hdr + pkt->l2_len);
+
+ /*
+ * Don't process the packet which has non-fragment inner IP.
+ */
+ if (ipv6_hdr->proto != IPPROTO_FRAGMENT)
+ return -1;
+
+ /* Note: l3_len includes length of extension headers */
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len;
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ if (pkt->pkt_len <= hdr_len)
+ return -1;
+
+ ipv6_frag_hdr = (struct rte_ipv6_fragment_ext *)(ipv6_hdr + 1);
+ ip_dl = rte_be_to_cpu_16(ipv6_hdr->payload_len) - fh_len;
+ ip_id = rte_be_to_cpu_32(ipv6_frag_hdr->id);
+ frag_offset = get_ipv6_frag_offset(ipv6_frag_hdr);
+ is_last_frag = is_last_ipv6_frag(ipv6_frag_hdr);
+
+ rte_ether_addr_copy(&(eth_hdr->s_addr), &(key.inner_key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->d_addr), &(key.inner_key.eth_daddr));
+ gro_ipv6_addr_copy(ipv6_hdr->src_addr, key.inner_key.ip_saddr);
+ gro_ipv6_addr_copy(ipv6_hdr->dst_addr, key.inner_key.ip_daddr);
+ key.inner_key.ip_id = ip_id;
+
+ key.vxlan_hdr.vx_flags = vxlan_hdr->vx_flags;
+ key.vxlan_hdr.vx_vni = vxlan_hdr->vx_vni;
+ rte_ether_addr_copy(&(outer_eth_hdr->s_addr), &(key.outer_eth_saddr));
+ rte_ether_addr_copy(&(outer_eth_hdr->d_addr), &(key.outer_eth_daddr));
+ gro_ipv6_addr_copy(outer_ipv6_hdr->src_addr, key.outer_ip_saddr);
+ gro_ipv6_addr_copy(outer_ipv6_hdr->dst_addr, key.outer_ip_daddr);
+ key.outer_src_port = udp_hdr->src_port;
+ key.outer_dst_port = udp_hdr->dst_port;
+
+ /* Search for a matched flow. */
+ max_flow_num = tbl->max_flow_num;
+ remaining_flow_num = tbl->flow_num;
+ find = 0;
+ for (i = 0; i < max_flow_num && remaining_flow_num; i++) {
+ if (tbl->flows[i].start_index != INVALID_ARRAY_INDEX) {
+ if (is_same_vxlan6_udp6_flow(tbl->flows[i].key, key)) {
+ find = 1;
+ break;
+ }
+ remaining_flow_num--;
+ }
+ }
+
+ /*
+ * Can't find a matched flow. Insert a new flow and store the
+ * packet into the flow.
+ */
+ if (find == 0) {
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, frag_offset,
+ is_last_frag);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ if (insert_new_flow(tbl, &key, item_idx) ==
+ INVALID_ARRAY_INDEX) {
+ /*
+ * Fail to insert a new flow, so
+ * delete the inserted packet.
+ */
+ delete_item(tbl, item_idx, INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Check all packets in the flow and try to find a neighbor. */
+ cur_idx = tbl->flows[i].start_index;
+ prev_idx = cur_idx;
+ do {
+ cmp = udp6_check_vxlan6_neighbor(&(tbl->items[cur_idx]),
+ frag_offset, ip_dl);
+ if (cmp) {
+ if (merge_two_vxlan6_udp6_packets(
+ &(tbl->items[cur_idx]),
+ pkt, cmp, frag_offset,
+ is_last_frag)) {
+ return 1;
+ }
+ /*
+ * Can't merge two packets, as the packet
+ * length will be greater than the max value.
+ * Insert the packet into the flow.
+ */
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ frag_offset, is_last_frag)
+ == INVALID_ARRAY_INDEX)
+ return -1;
+ return 0;
+ }
+
+ /* Ensure inserted items are ordered by frag_offset */
+ if (frag_offset
+ < tbl->items[cur_idx].inner_item.frag_offset) {
+ break;
+ }
+
+ prev_idx = cur_idx;
+ cur_idx = tbl->items[cur_idx].inner_item.next_pkt_idx;
+ } while (cur_idx != INVALID_ARRAY_INDEX);
+
+ /* Can't find neighbor. Insert the packet into the flow. */
+ if (cur_idx == tbl->flows[i].start_index) {
+ /* Insert it before the first packet of the flow */
+ item_idx = insert_new_item(tbl, pkt, start_time,
+ INVALID_ARRAY_INDEX, frag_offset,
+ is_last_frag);
+ if (item_idx == INVALID_ARRAY_INDEX)
+ return -1;
+ tbl->items[item_idx].inner_item.next_pkt_idx = cur_idx;
+ tbl->flows[i].start_index = item_idx;
+ } else {
+ if (insert_new_item(tbl, pkt, start_time, prev_idx,
+ frag_offset, is_last_frag)
+ == INVALID_ARRAY_INDEX)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+gro_vxlan6_udp6_merge_items(struct gro_vxlan6_udp6_tbl *tbl,
+ uint32_t start_idx)
+{
+ uint16_t frag_offset;
+ uint8_t is_last_frag;
+ int16_t ip_dl;
+ struct rte_mbuf *pkt;
+ int cmp;
+ uint32_t item_idx;
+ uint16_t hdr_len;
+
+ item_idx = tbl->items[start_idx].inner_item.next_pkt_idx;
+ while (item_idx != INVALID_ARRAY_INDEX) {
+ pkt = tbl->items[item_idx].inner_item.firstseg;
+ hdr_len = pkt->outer_l2_len + pkt->outer_l3_len + pkt->l2_len +
+ pkt->l3_len;
+ ip_dl = pkt->pkt_len - hdr_len;
+ frag_offset = tbl->items[item_idx].inner_item.frag_offset;
+ is_last_frag = tbl->items[item_idx].inner_item.is_last_frag;
+ cmp = udp6_check_vxlan6_neighbor(&(tbl->items[start_idx]),
+ frag_offset, ip_dl);
+ if (cmp) {
+ if (merge_two_vxlan6_udp6_packets(
+ &(tbl->items[start_idx]),
+ pkt, cmp, frag_offset,
+ is_last_frag)) {
+ item_idx = delete_item(tbl, item_idx,
+ INVALID_ARRAY_INDEX);
+ tbl->items[start_idx].inner_item.next_pkt_idx
+ = item_idx;
+ } else {
+ return 0;
+ }
+ } else {
+ return 0;
+ }
+ }
+
+ return 0;
+}
+
+uint16_t
+gro_vxlan6_udp6_tbl_timeout_flush(struct gro_vxlan6_udp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out)
+{
+ uint16_t k = 0;
+ uint32_t i, j;
+ uint32_t max_flow_num = tbl->max_flow_num;
+
+ for (i = 0; i < max_flow_num; i++) {
+ if (unlikely(tbl->flow_num == 0))
+ return k;
+
+ j = tbl->flows[i].start_index;
+ while (j != INVALID_ARRAY_INDEX) {
+ if (tbl->items[j].inner_item.start_time <=
+ flush_timestamp) {
+ gro_vxlan6_udp6_merge_items(tbl, j);
+ out[k++] = tbl->items[j].inner_item.firstseg;
+ if (tbl->items[j].inner_item.nb_merged > 1)
+ update_vxlan6_header(&(tbl->items[j]));
+ /*
+ * Delete the item and get the next packet
+ * index.
+ */
+ j = delete_item(tbl, j, INVALID_ARRAY_INDEX);
+ tbl->flows[i].start_index = j;
+ if (j == INVALID_ARRAY_INDEX)
+ tbl->flow_num--;
+
+ if (unlikely(k == nb_out))
+ return k;
+ } else
+ /*
+ * The left packets in the flow won't be
+ * timeout. Go to check other flows.
+ */
+ break;
+ }
+ }
+ return k;
+}
+
+uint32_t
+gro_vxlan6_udp6_tbl_pkt_count(void *tbl)
+{
+ struct gro_vxlan6_udp6_tbl *gro_tbl = tbl;
+
+ if (gro_tbl)
+ return gro_tbl->item_num;
+
+ return 0;
+}
diff --git a/lib/librte_gro/gro_vxlan6_udp6.h b/lib/librte_gro/gro_vxlan6_udp6.h
new file mode 100644
index 0000000..7f3a8e8
--- /dev/null
+++ b/lib/librte_gro/gro_vxlan6_udp6.h
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Inspur Corporation
+ */
+
+#ifndef _GRO_VXLAN6_UDP6_H_
+#define _GRO_VXLAN6_UDP6_H_
+
+#include "gro_udp6.h"
+
+#define GRO_VXLAN6_UDP6_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/* Header fields representing a IPv6 VxLAN flow */
+struct vxlan6_udp6_flow_key {
+ struct udp6_flow_key inner_key;
+ struct rte_vxlan_hdr vxlan_hdr;
+
+ struct rte_ether_addr outer_eth_saddr;
+ struct rte_ether_addr outer_eth_daddr;
+
+ uint8_t outer_ip_saddr[16];
+ uint8_t outer_ip_daddr[16];
+
+ /* Outer UDP ports */
+ uint16_t outer_src_port;
+ uint16_t outer_dst_port;
+
+};
+
+struct gro_vxlan6_udp6_flow {
+ struct vxlan6_udp6_flow_key key;
+ /*
+ * The index of the first packet in the flow. INVALID_ARRAY_INDEX
+ * indicates an empty flow.
+ */
+ uint32_t start_index;
+};
+
+struct gro_vxlan6_udp6_item {
+ struct gro_udp6_item inner_item;
+};
+
+/*
+ * IPv6 VxLAN (with an outer IPv6 header and an inner UDP/IPv6 packet)
+ * reassembly table structure
+ */
+struct gro_vxlan6_udp6_tbl {
+ /* item array */
+ struct gro_vxlan6_udp6_item *items;
+ /* flow array */
+ struct gro_vxlan6_udp6_flow *flows;
+ /* current item number */
+ uint32_t item_num;
+ /* current flow number */
+ uint32_t flow_num;
+ /* the maximum item number */
+ uint32_t max_item_num;
+ /* the maximum flow number */
+ uint32_t max_flow_num;
+};
+
+/**
+ * This function creates a IPv6 VxLAN reassembly table for IPv6 VxLAN packets
+ * which have an outer IPv6 header and an inner UDP/IPv6 packet.
+ *
+ * @param socket_id
+ * Socket index for allocating the table
+ * @param max_flow_num
+ * The maximum number of flows in the table
+ * @param max_item_per_flow
+ * The maximum number of packets per flow
+ *
+ * @return
+ * - Return the table pointer on success.
+ * - Return NULL on failure.
+ */
+void *gro_vxlan6_udp6_tbl_create(uint16_t socket_id,
+ uint16_t max_flow_num,
+ uint16_t max_item_per_flow);
+
+/**
+ * This function destroys a IPv6 VxLAN reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ */
+void gro_vxlan6_udp6_tbl_destroy(void *tbl);
+
+/**
+ * This function merges a IPv6 VxLAN packet which has an outer IPv6 header and
+ * an inner UDP/IPv6 packet. It does not process the packet which does not
+ * have payload.
+ *
+ * This function does not check if the packet has correct checksums and
+ * does not re-calculate checksums for the merged packet. It returns the
+ * packet if there is no available space in the table.
+ *
+ * @param pkt
+ * Packet to reassemble
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ * @start_time
+ * The time when the packet is inserted into the table
+ *
+ * @return
+ * - Return a positive value if the packet is merged.
+ * - Return zero if the packet isn't merged but stored in the table.
+ * - Return a negative value for invalid parameters or no available
+ * space in the table.
+ */
+int32_t gro_vxlan6_udp6_reassemble(struct rte_mbuf *pkt,
+ struct gro_vxlan6_udp6_tbl *tbl,
+ uint64_t start_time);
+
+/**
+ * This function flushes timeout packets in the IPv6 VxLAN reassembly table,
+ * and without updating checksums.
+ *
+ * @param tbl
+ * Pointer pointing to a IPv6 VxLAN GRO table
+ * @param flush_timestamp
+ * This function flushes packets which are inserted into the table
+ * before or at the flush_timestamp.
+ * @param out
+ * Pointer array used to keep flushed packets
+ * @param nb_out
+ * The element number in 'out'. It also determines the maximum number of
+ * packets that can be flushed finally.
+ *
+ * @return
+ * The number of flushed packets
+ */
+uint16_t gro_vxlan6_udp6_tbl_timeout_flush(struct gro_vxlan6_udp6_tbl *tbl,
+ uint64_t flush_timestamp,
+ struct rte_mbuf **out,
+ uint16_t nb_out);
+
+/**
+ * This function returns the number of the packets in a IPv6 VxLAN
+ * reassembly table.
+ *
+ * @param tbl
+ * Pointer pointing to the IPv6 VxLAN reassembly table
+ *
+ * @return
+ * The number of packets in the table
+ */
+uint32_t gro_vxlan6_udp6_tbl_pkt_count(void *tbl);
+#endif
diff --git a/lib/librte_gro/meson.build b/lib/librte_gro/meson.build
index e23197d..56d015a 100644
--- a/lib/librte_gro/meson.build
+++ b/lib/librte_gro/meson.build
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
-sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c', 'gro_udp6.c', 'gro_vxlan_udp6.c', 'gro_vxlan6_udp4.c')
+sources = files('rte_gro.c', 'gro_tcp4.c', 'gro_udp4.c', 'gro_vxlan_tcp4.c', 'gro_vxlan_udp4.c', 'gro_tcp6.c', 'gro_vxlan_tcp6.c', 'gro_vxlan6_tcp4.c', 'gro_vxlan6_tcp6.c', 'gro_udp6.c', 'gro_vxlan_udp6.c', 'gro_vxlan6_udp4.c', 'gro_vxlan6_udp6.c')
headers = files('rte_gro.h')
deps += ['ethdev']
diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index 021a49e..abe3911 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -15,6 +15,7 @@
#include "gro_vxlan6_tcp4.h"
#include "gro_vxlan6_tcp6.h"
#include "gro_vxlan6_udp4.h"
+#include "gro_vxlan6_udp6.h"
#include "gro_vxlan_tcp4.h"
#include "gro_vxlan_tcp6.h"
#include "gro_vxlan_udp4.h"
@@ -32,7 +33,8 @@
gro_tcp6_tbl_create, gro_vxlan_tcp6_tbl_create,
gro_vxlan6_tcp4_tbl_create, gro_vxlan6_tcp6_tbl_create,
gro_udp6_tbl_create, gro_vxlan_udp6_tbl_create,
- gro_vxlan6_udp4_tbl_create, NULL};
+ gro_vxlan6_udp4_tbl_create, gro_vxlan6_udp6_tbl_create,
+ NULL};
static gro_tbl_destroy_fn tbl_destroy_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_destroy, gro_vxlan_tcp4_tbl_destroy,
gro_udp4_tbl_destroy, gro_vxlan_udp4_tbl_destroy,
@@ -40,7 +42,8 @@
gro_vxlan6_tcp4_tbl_destroy,
gro_vxlan6_tcp6_tbl_destroy,
gro_udp6_tbl_destroy, gro_vxlan_udp6_tbl_destroy,
- gro_vxlan6_udp4_tbl_destroy, NULL};
+ gro_vxlan6_udp4_tbl_destroy,
+ gro_vxlan6_udp6_tbl_destroy, NULL};
static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
gro_tcp4_tbl_pkt_count, gro_vxlan_tcp4_tbl_pkt_count,
gro_udp4_tbl_pkt_count, gro_vxlan_udp4_tbl_pkt_count,
@@ -48,7 +51,8 @@
gro_vxlan6_tcp4_tbl_pkt_count,
gro_vxlan6_tcp6_tbl_pkt_count,
gro_udp6_tbl_pkt_count, gro_vxlan_udp6_tbl_pkt_count,
- gro_vxlan6_udp4_tbl_pkt_count, NULL};
+ gro_vxlan6_udp4_tbl_pkt_count,
+ gro_vxlan6_udp6_tbl_pkt_count, NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
@@ -157,6 +161,19 @@
((ptype & RTE_PTYPE_INNER_L3_MASK) == \
RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
+#define IS_IPV6_VXLAN_UDP6_PKT(ptype) (RTE_ETH_IS_IPV6_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+ ((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
+ RTE_PTYPE_TUNNEL_VXLAN) && \
+ ((ptype & RTE_PTYPE_INNER_L4_UDP) == \
+ RTE_PTYPE_INNER_L4_UDP) && \
+ (((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6_EXT) || \
+ ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN)))
+
/*
* GRO context structure. It keeps the table structures, which are
* used to merge packets, for different GRO types. Before using
@@ -300,6 +317,13 @@ struct gro_ctx {
struct gro_vxlan6_udp4_item
vxlan6_udp4_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{{0}} };
+ /* Allocate a reassembly table for IPv6 VXLAN UDP/IPv6 GRO */
+ struct gro_vxlan6_udp6_tbl vxlan6_udp6_tbl;
+ struct gro_vxlan6_udp6_flow
+ vxlan6_udp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_vxlan6_udp6_item
+ vxlan6_udp6_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{{0}} };
+
struct rte_mbuf *unprocess_pkts[nb_pkts];
uint32_t item_num;
int32_t ret;
@@ -308,7 +332,7 @@ struct gro_ctx {
do_vxlan_udp_gro = 0, do_tcp6_gro = 0, do_vxlan_tcp6_gro = 0,
do_vxlan6_tcp4_gro = 0, do_vxlan6_tcp6_gro = 0,
do_udp6_gro = 0, do_vxlan_udp6_gro = 0,
- do_vxlan6_udp4_gro = 0;
+ do_vxlan6_udp4_gro = 0, do_vxlan6_udp6_gro = 0;
if (unlikely((param->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -320,7 +344,8 @@ struct gro_ctx {
RTE_GRO_IPV6_VXLAN_TCP_IPV6 |
RTE_GRO_UDP_IPV6 |
RTE_GRO_IPV4_VXLAN_UDP_IPV6 |
- RTE_GRO_IPV6_VXLAN_UDP_IPV4)) == 0))
+ RTE_GRO_IPV6_VXLAN_UDP_IPV4 |
+ RTE_GRO_IPV6_VXLAN_UDP_IPV6)) == 0))
return nb_pkts;
/* Get the maximum number of packets */
@@ -471,6 +496,19 @@ struct gro_ctx {
do_vxlan6_udp4_gro = 1;
}
+ if (param->gro_types & RTE_GRO_IPV6_VXLAN_UDP_IPV6) {
+ for (i = 0; i < item_num; i++)
+ vxlan6_udp6_flows[i].start_index = INVALID_ARRAY_INDEX;
+
+ vxlan6_udp6_tbl.flows = vxlan6_udp6_flows;
+ vxlan6_udp6_tbl.items = vxlan6_udp6_items;
+ vxlan6_udp6_tbl.flow_num = 0;
+ vxlan6_udp6_tbl.item_num = 0;
+ vxlan6_udp6_tbl.max_flow_num = item_num;
+ vxlan6_udp6_tbl.max_item_num = item_num;
+ do_vxlan6_udp6_gro = 1;
+ }
+
for (i = 0; i < nb_pkts; i++) {
/*
* The timestamp is ignored, since all packets
@@ -571,6 +609,15 @@ struct gro_ctx {
nb_after_gro--;
else if (ret < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_VXLAN_UDP6_PKT(pkts[i]->packet_type) &&
+ do_vxlan6_udp6_gro) {
+ ret = gro_vxlan6_udp6_reassemble(pkts[i],
+ &vxlan6_udp6_tbl, 0);
+ if (ret > 0)
+ /* Merge successfully */
+ nb_after_gro--;
+ else if (ret < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -633,7 +680,11 @@ struct gro_ctx {
if (do_vxlan6_udp4_gro) {
i += gro_vxlan6_udp4_tbl_timeout_flush(&vxlan6_udp4_tbl,
0, &pkts[i], nb_pkts - i);
+ }
+ if (do_vxlan6_udp6_gro) {
+ i += gro_vxlan6_udp6_tbl_timeout_flush(&vxlan6_udp6_tbl,
+ 0, &pkts[i], nb_pkts - i);
}
/* Copy unprocessed packets */
@@ -657,13 +708,14 @@ struct gro_ctx {
struct gro_ctx *gro_ctx = ctx;
void *tcp_tbl, *udp_tbl, *vxlan_tcp_tbl, *vxlan_udp_tbl, *tcp6_tbl,
*vxlan_tcp6_tbl, *vxlan6_tcp4_tbl, *vxlan6_tcp6_tbl,
- *udp6_tbl, *vxlan_udp6_tbl, *vxlan6_udp4_tbl;
+ *udp6_tbl, *vxlan_udp6_tbl, *vxlan6_udp4_tbl,
+ *vxlan6_udp6_tbl;
uint64_t current_time;
uint16_t i, unprocess_num = 0;
uint8_t do_tcp4_gro, do_vxlan_tcp_gro, do_udp4_gro, do_vxlan_udp_gro,
do_tcp6_gro, do_vxlan_tcp6_gro, do_vxlan6_tcp4_gro,
do_vxlan6_tcp6_gro, do_udp6_gro, do_vxlan_udp6_gro,
- do_vxlan6_udp4_gro;
+ do_vxlan6_udp4_gro, do_vxlan6_udp6_gro;
if (unlikely((gro_ctx->gro_types & (RTE_GRO_IPV4_VXLAN_TCP_IPV4 |
RTE_GRO_TCP_IPV4 |
@@ -675,7 +727,8 @@ struct gro_ctx {
RTE_GRO_IPV6_VXLAN_TCP_IPV6 |
RTE_GRO_UDP_IPV6 |
RTE_GRO_IPV4_VXLAN_UDP_IPV6 |
- RTE_GRO_IPV6_VXLAN_UDP_IPV4)) == 0))
+ RTE_GRO_IPV6_VXLAN_UDP_IPV4 |
+ RTE_GRO_IPV6_VXLAN_UDP_IPV6)) == 0))
return nb_pkts;
tcp_tbl = gro_ctx->tbls[RTE_GRO_TCP_IPV4_INDEX];
@@ -689,6 +742,7 @@ struct gro_ctx {
udp6_tbl = gro_ctx->tbls[RTE_GRO_UDP_IPV6_INDEX];
vxlan_udp6_tbl = gro_ctx->tbls[RTE_GRO_IPV4_VXLAN_UDP_IPV6_INDEX];
vxlan6_udp4_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_UDP_IPV4_INDEX];
+ vxlan6_udp6_tbl = gro_ctx->tbls[RTE_GRO_IPV6_VXLAN_UDP_IPV6_INDEX];
do_tcp4_gro = (gro_ctx->gro_types & RTE_GRO_TCP_IPV4) ==
RTE_GRO_TCP_IPV4;
@@ -712,6 +766,8 @@ struct gro_ctx {
== RTE_GRO_IPV4_VXLAN_UDP_IPV6;
do_vxlan6_udp4_gro = (gro_ctx->gro_types & RTE_GRO_IPV6_VXLAN_UDP_IPV4)
== RTE_GRO_IPV6_VXLAN_UDP_IPV4;
+ do_vxlan6_udp6_gro = (gro_ctx->gro_types & RTE_GRO_IPV6_VXLAN_UDP_IPV6)
+ == RTE_GRO_IPV6_VXLAN_UDP_IPV6;
current_time = rte_rdtsc();
@@ -771,6 +827,11 @@ struct gro_ctx {
if (gro_vxlan6_udp4_reassemble(pkts[i], vxlan6_udp4_tbl,
current_time) < 0)
unprocess_pkts[unprocess_num++] = pkts[i];
+ } else if (IS_IPV6_VXLAN_UDP6_PKT(pkts[i]->packet_type) &&
+ do_vxlan6_udp6_gro) {
+ if (gro_vxlan6_udp6_reassemble(pkts[i], vxlan6_udp6_tbl,
+ current_time) < 0)
+ unprocess_pkts[unprocess_num++] = pkts[i];
} else
unprocess_pkts[unprocess_num++] = pkts[i];
}
@@ -876,6 +937,13 @@ struct gro_ctx {
num += gro_vxlan6_udp4_tbl_timeout_flush(gro_ctx->tbls[
RTE_GRO_IPV6_VXLAN_UDP_IPV4_INDEX],
flush_timestamp, &out[num], left_nb_out);
+ left_nb_out = max_nb_out - num;
+ }
+
+ if ((gro_types & RTE_GRO_IPV6_VXLAN_UDP_IPV6) && left_nb_out > 0) {
+ num += gro_vxlan6_udp6_tbl_timeout_flush(gro_ctx->tbls[
+ RTE_GRO_IPV6_VXLAN_UDP_IPV6_INDEX],
+ flush_timestamp, &out[num], left_nb_out);
}
return num;
diff --git a/lib/librte_gro/rte_gro.h b/lib/librte_gro/rte_gro.h
index ddcded6..fefa2e9 100644
--- a/lib/librte_gro/rte_gro.h
+++ b/lib/librte_gro/rte_gro.h
@@ -59,6 +59,9 @@
#define RTE_GRO_IPV6_VXLAN_UDP_IPV4_INDEX 10
#define RTE_GRO_IPV6_VXLAN_UDP_IPV4 (1ULL << RTE_GRO_IPV6_VXLAN_UDP_IPV4_INDEX)
/**< IPv6 VxLAN UDP/IPv4 GRO flag. */
+#define RTE_GRO_IPV6_VXLAN_UDP_IPV6_INDEX 11
+#define RTE_GRO_IPV6_VXLAN_UDP_IPV6 (1ULL << RTE_GRO_IPV6_VXLAN_UDP_IPV6_INDEX)
+/**< IPv6 VxLAN UDP/IPv6 GRO flag. */
/**
* Structure used to create GRO context objects or used to pass
--
1.8.3.1
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN
2020-12-21 3:50 [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN yang_y_yi
` (7 preceding siblings ...)
2020-12-21 3:50 ` [dpdk-dev] [PATCH v1 8/8] gro: support IPv6 VXLAN UDP/IPv6 yang_y_yi
@ 2021-03-24 21:22 ` Thomas Monjalon
2021-07-24 8:48 ` Thomas Monjalon
8 siblings, 1 reply; 13+ messages in thread
From: Thomas Monjalon @ 2021-03-24 21:22 UTC (permalink / raw)
To: yang_y_yi; +Cc: dev, jiayu.hu, konstantin.ananyev, yangyi01
21/12/2020 04:50, yang_y_yi@163.com:
> Yi Yang (8):
> gro: support TCP/IPv6
> gro: support IPv4 VXLAN TCP/IPv6
> gro: support IPv6 VXLAN TCP/IPv4
> gro: support IPv6 VXLAN TCP/IPv6
> gro: support UDP/IPv6
> gro: support IPv4 VXLAN UDP/IPv6
> gro: support IPv6 VXLAN UDP/IPv4
> gro: support IPv6 VXLAN UDP/IPv6
There was no review/activity on this thread.
Is it abandoned?
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN
2021-03-24 21:22 ` [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN Thomas Monjalon
@ 2021-07-24 8:48 ` Thomas Monjalon
2021-07-25 23:53 ` Hu, Jiayu
0 siblings, 1 reply; 13+ messages in thread
From: Thomas Monjalon @ 2021-07-24 8:48 UTC (permalink / raw)
To: yang_y_yi, jiayu.hu; +Cc: dev, konstantin.ananyev, yangyi01
24/03/2021 22:22, Thomas Monjalon:
> 21/12/2020 04:50, yang_y_yi@163.com:
> > Yi Yang (8):
> > gro: support TCP/IPv6
> > gro: support IPv4 VXLAN TCP/IPv6
> > gro: support IPv6 VXLAN TCP/IPv4
> > gro: support IPv6 VXLAN TCP/IPv6
> > gro: support UDP/IPv6
> > gro: support IPv4 VXLAN UDP/IPv6
> > gro: support IPv6 VXLAN UDP/IPv4
> > gro: support IPv6 VXLAN UDP/IPv6
>
> There was no review/activity on this thread.
> Is it abandoned?
No reply. Should I assume it can be dropped?
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN
2021-07-24 8:48 ` Thomas Monjalon
@ 2021-07-25 23:53 ` Hu, Jiayu
2023-06-12 2:11 ` Stephen Hemminger
0 siblings, 1 reply; 13+ messages in thread
From: Hu, Jiayu @ 2021-07-25 23:53 UTC (permalink / raw)
To: Thomas Monjalon, yang_y_yi; +Cc: dev, Ananyev, Konstantin, yangyi01
> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Saturday, July 24, 2021 4:49 PM
> To: yang_y_yi@163.com; Hu, Jiayu <jiayu.hu@intel.com>
> Cc: dev@dpdk.org; Ananyev, Konstantin <konstantin.ananyev@intel.com>;
> yangyi01@inspur.com
> Subject: Re: [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6
> for VLAN and VXLAN
>
> 24/03/2021 22:22, Thomas Monjalon:
> > 21/12/2020 04:50, yang_y_yi@163.com:
> > > Yi Yang (8):
> > > gro: support TCP/IPv6
> > > gro: support IPv4 VXLAN TCP/IPv6
> > > gro: support IPv6 VXLAN TCP/IPv4
> > > gro: support IPv6 VXLAN TCP/IPv6
> > > gro: support UDP/IPv6
> > > gro: support IPv4 VXLAN UDP/IPv6
> > > gro: support IPv6 VXLAN UDP/IPv4
> > > gro: support IPv6 VXLAN UDP/IPv6
> >
> > There was no review/activity on this thread.
> > Is it abandoned?
>
> No reply. Should I assume it can be dropped?
No further updates from Yi on this patch set. So I guess "yes"?
Thanks,
Jiayu
>
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6 for VLAN and VXLAN
2021-07-25 23:53 ` Hu, Jiayu
@ 2023-06-12 2:11 ` Stephen Hemminger
0 siblings, 0 replies; 13+ messages in thread
From: Stephen Hemminger @ 2023-06-12 2:11 UTC (permalink / raw)
To: Hu, Jiayu; +Cc: Thomas Monjalon, yang_y_yi, dev, Ananyev, Konstantin, yangyi01
On Sun, 25 Jul 2021 23:53:28 +0000
"Hu, Jiayu" <jiayu.hu@intel.com> wrote:
> > -----Original Message-----
> > From: Thomas Monjalon <thomas@monjalon.net>
> > Sent: Saturday, July 24, 2021 4:49 PM
> > To: yang_y_yi@163.com; Hu, Jiayu <jiayu.hu@intel.com>
> > Cc: dev@dpdk.org; Ananyev, Konstantin <konstantin.ananyev@intel.com>;
> > yangyi01@inspur.com
> > Subject: Re: [dpdk-dev] [PATCH v1 0/8] gro: support TCP/IPv6 and UDP/IPv6
> > for VLAN and VXLAN
> >
> > 24/03/2021 22:22, Thomas Monjalon:
> > > 21/12/2020 04:50, yang_y_yi@163.com:
> > > > Yi Yang (8):
> > > > gro: support TCP/IPv6
> > > > gro: support IPv4 VXLAN TCP/IPv6
> > > > gro: support IPv6 VXLAN TCP/IPv4
> > > > gro: support IPv6 VXLAN TCP/IPv6
> > > > gro: support UDP/IPv6
> > > > gro: support IPv4 VXLAN UDP/IPv6
> > > > gro: support IPv6 VXLAN UDP/IPv4
> > > > gro: support IPv6 VXLAN UDP/IPv6
> > >
> > > There was no review/activity on this thread.
> > > Is it abandoned?
> >
> > No reply. Should I assume it can be dropped?
>
> No further updates from Yi on this patch set. So I guess "yes"?
Ok, patch marked rejected.
If there is a use case, then a new maintainer can find it in archive
and work on it.
What was missing was a clear use case, documentation and testing.
^ permalink raw reply [flat|nested] 13+ messages in thread