Add support for IPv6 GRO for TCP packets
Signed-off-by: Kumara Parameshwaran <kumaraparames...@gmail.com>
---
v1:
* Changes to support GRO for TCP/ipv6 packets. This does not include
vxlan changes.
* The GRO is performed only for ipv6 packets that does not contain
extension headers.
* The logic for the TCP coalescing remains the same, in ipv6 header
the source address, destination address, flow label, version fields
are expected to be the same.
* Re-organised the code to reuse certain tcp functions for both ipv4
and
ipv6 flows.
v2:
* Fix comments in gro_tcp6.h header file.
v3:
* Adderess review comments to fix code duplication for v4 and v6
v4:
* Addresses review comments for v3, do not use callbacks
v5:
* Address review comments
v6:
* Fix warning and coding style issues
v7:
* Fix build compilation issue
v8:
* Use gro_tcp_internal.h for functions used for gro_tcp4 and gro_tcp6
and use
gro_tcp.h for data structures and functions used across gro_vxlan_tcp4
v9:
* Resolve merge conflict and add gro_tcp.h in proper path
v10:
* Refactor the code to contain 2 patches. This patch contains support
for IPv6 GRO
v11:
* Fix commit to add missed files
.../generic_receive_offload_lib.rst | 21 +-
doc/guides/rel_notes/release_23_07.rst | 2 +
lib/gro/gro_tcp6.c | 268 ++++++++++++++++++
lib/gro/gro_tcp6.h | 160 +++++++++++
lib/gro/meson.build | 1 +
lib/gro/rte_gro.c | 81 +++++-
lib/gro/rte_gro.h | 3 +
7 files changed, 513 insertions(+), 23 deletions(-)
create mode 100644 lib/gro/gro_tcp6.c
create mode 100644 lib/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 98a5d29bbc..533cda7f5c 100644
--- a/doc/guides/prog_guide/generic_receive_offload_lib.rst
+++ b/doc/guides/prog_guide/generic_receive_offload_lib.rst
@@ -138,20 +138,21 @@ The key-based algorithm has two characters:
Key-based Reassembly Algorithm
-TCP/IPv4 GRO
-------------
+TCP-IPv4/IPv6 GRO
+-----------------
-The table structure used by TCP/IPv4 GRO contains two arrays: flow array
+The table structure used by TCP-IPv4/IPv6 GRO contains two arrays: flow array
and item array. The flow array keeps flow information, and the item array
-keeps packet information.
+keeps packet information. The flow array is different for IPv4 and IPv6 while
+the item array is the same.
-Header fields used to define a TCP/IPv4 flow include:
+Header fields used to define a TCP-IPv4/IPv6 flow include:
-- source and destination: Ethernet and IP address, TCP port
+- common tcp key fields : Ethernet address, TCP port, TCP acknowledge number
+- version specific IP address
+- IPv6 flow label for IPv6 flow
-- TCP acknowledge number
-
-TCP/IPv4 packets whose FIN, SYN, RST, URG, PSH, ECE or CWR bit is set
+TCP packets whose FIN, SYN, RST, URG, PSH, ECE or CWR bit is set
won't be processed.
Header fields deciding if two packets are neighbors include:
@@ -159,7 +160,7 @@ Header fields deciding if two packets are neighbors include:
- TCP sequence number
- IPv4 ID. The IPv4 ID fields of the packets, whose DF bit is 0, should
- be increased by 1.
+ be increased by 1. This is applicable only for IPv4
VxLAN GRO
---------
diff --git a/doc/guides/rel_notes/release_23_07.rst
b/doc/guides/rel_notes/release_23_07.rst
index 027ae7bd2d..7124cf45c7 100644
--- a/doc/guides/rel_notes/release_23_07.rst
+++ b/doc/guides/rel_notes/release_23_07.rst
@@ -170,6 +170,8 @@ New Features
See :doc:`../prog_guide/pdcp_lib` for more information.
+* **Added support for TCP/IPv6 GRO.**
+ * Enhanced the existing library to support GRO for TCP packets over IPv6
network.
Removed Items
-------------
diff --git a/lib/gro/gro_tcp6.c b/lib/gro/gro_tcp6.c
new file mode 100644
index 0000000000..5aa39801e1
--- /dev/null
+++ b/lib/gro/gro_tcp6.c
@@ -0,0 +1,268 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Intel Corporation
+ */
+
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_ethdev.h>
+
+#include "gro_tcp6.h"
+#include "gro_tcp_internal.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_tcp_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_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_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);
+
+ ASSIGN_COMMON_TCP_KEY((&src->cmn_key), (&dst->cmn_key));
+ memcpy(&dst->src_addr[0], &src->src_addr[0], sizeof(dst->src_addr));
+ memcpy(&dst->dst_addr[0], &src->dst_addr[0], sizeof(dst->dst_addr));
+ dst->vtc_flow = src->vtc_flow;
+
+ 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_tcp_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;
+ int32_t tcp_dl;
+ uint16_t ip_tlen;
+ struct tcp6_flow_key key;
+ uint32_t i, max_flow_num, remaining_flow_num;
+ uint32_t sent_seq;
+ struct rte_tcp_hdr *tcp_hdr;
+ uint8_t find;
+ uint32_t item_idx;
+ /*
+ * 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 = rte_pktmbuf_mtod_offset(pkt, struct rte_tcp_hdr *,
pkt->l2_len + 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;
+
+ ip_tlen = rte_be_to_cpu_16(ipv6_hdr->payload_len);
+ /*
+ * Don't process the packet whose payload length is less than or
+ * equal to 0.
+ */
+ tcp_dl = ip_tlen - pkt->l4_len;
+ if (tcp_dl <= 0)
+ return -1;
+
+ rte_ether_addr_copy(&(eth_hdr->src_addr), &(key.cmn_key.eth_saddr));
+ rte_ether_addr_copy(&(eth_hdr->dst_addr), &(key.cmn_key.eth_daddr));
+ memcpy(&key.src_addr[0], &ipv6_hdr->src_addr, sizeof(key.src_addr));
+ memcpy(&key.dst_addr[0], &ipv6_hdr->dst_addr, sizeof(key.dst_addr));
+ key.cmn_key.src_port = tcp_hdr->src_port;
+ key.cmn_key.dst_port = tcp_hdr->dst_port;
+ key.cmn_key.recv_ack = tcp_hdr->recv_ack;
+ key.vtc_flow = ipv6_hdr->vtc_flow;
+
+ /* 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--;
+ }
+ }
+
+ if (find == 0) {
+ sent_seq = rte_be_to_cpu_32(tcp_hdr->sent_seq);
+ item_idx = insert_new_tcp_item(pkt, tbl->items, &tbl->item_num,
+ tbl->max_item_num, start_time,
+ INVALID_ARRAY_INDEX, sent_seq,
0, true);
+ 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_tcp_item(tbl->items, item_idx, &tbl->item_num,
INVALID_ARRAY_INDEX);
+ return -1;
+ }
+ return 0;
+ }
+
+ return process_tcp_item(pkt, tcp_hdr, tcp_dl, tbl->items,
tbl->flows[i].start_index,
+ &tbl->item_num,
tbl->max_item_num,
+ 0, true, start_time);
+}
+
+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_tcp_item(tbl->items, j,
+ &tbl->item_num,
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/gro/gro_tcp6.h b/lib/gro/gro_tcp6.h
new file mode 100644
index 0000000000..073122f0ec
--- /dev/null
+++ b/lib/gro/gro_tcp6.h
@@ -0,0 +1,160 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Intel Corporation
+ */
+
+#ifndef _GRO_TCP6_H_
+#define _GRO_TCP6_H_
+
+#include "gro_tcp.h"
+
+#define GRO_TCP6_TBL_MAX_ITEM_NUM (1024UL * 1024UL)
+
+/* Header fields representing a TCP/IPv6 flow */
+struct tcp6_flow_key {
+ struct cmn_tcp_key cmn_key;
+ uint8_t src_addr[16];
+ uint8_t dst_addr[16];
+ rte_be32_t vtc_flow;
+};
+
+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;
+};
+
+/*
+ * TCP/IPv6 reassembly table structure.
+ */
+struct gro_tcp6_tbl {
+ /* item array */
+ struct gro_tcp_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 doesn't process the packet,
+ * which has SYN, FIN, RST, PSH, CWR, ECE or URG set, or doesn't have
+ * payload.
+ *
+ * This function doesn't check if the packet has correct checksums and
+ * doesn't 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 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)
+{
+ rte_be32_t vtc_flow_diff;
+
+ if (memcmp(&k1->src_addr, &k2->src_addr, 16))
+ return 0;
+ if (memcmp(&k1->dst_addr, &k2->dst_addr, 16))
+ return 0;
+ /*
+ * IP version (4) Traffic Class (8) Flow Label (20)
+ * All fields except Traffic class should be same
+ */
+ vtc_flow_diff = (k1->vtc_flow ^ k2->vtc_flow);
+ if (vtc_flow_diff & htonl(0xF00FFFFF))
+ return 0;
+
+ return is_same_common_tcp_key(&k1->cmn_key, &k2->cmn_key);
+}
+
+#endif
diff --git a/lib/gro/meson.build b/lib/gro/meson.build
index e4fa2958bd..dbce05220d 100644
--- a/lib/gro/meson.build
+++ b/lib/gro/meson.build
@@ -4,6 +4,7 @@
sources = files(
'rte_gro.c',
'gro_tcp4.c',
+ 'gro_tcp6.c',
'gro_udp4.c',
'gro_vxlan_tcp4.c',
'gro_vxlan_udp4.c',
diff --git a/lib/gro/rte_gro.c b/lib/gro/rte_gro.c
index ac3d1cdc94..d824eebd93 100644
--- a/lib/gro/rte_gro.c
+++ b/lib/gro/rte_gro.c
@@ -8,6 +8,7 @@
#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"
@@ -20,14 +21,16 @@ typedef uint32_t (*gro_tbl_pkt_count_fn)(void *tbl);
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,
+ 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,
+ gro_tcp6_tbl_pkt_count,
NULL};
#define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
@@ -35,6 +38,12 @@ static gro_tbl_pkt_count_fn
tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
((ptype & RTE_PTYPE_L4_FRAG) != RTE_PTYPE_L4_FRAG) && \
(RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
+/* GRO with extension headers is not supported */
+#define IS_IPV6_TCP_PKT(ptype) (RTE_ETH_IS_IPV6_HDR(ptype) && \
+ ((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
+ ((ptype & RTE_PTYPE_L4_FRAG) != RTE_PTYPE_L4_FRAG) && \
+ (RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
+
#define IS_IPV4_UDP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
(RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
@@ -149,6 +158,10 @@ rte_gro_reassemble_burst(struct rte_mbuf **pkts,
struct gro_tcp4_flow tcp_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
struct gro_tcp_item tcp_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{0} };
+ struct gro_tcp6_tbl tcp6_tbl;
+ struct gro_tcp6_flow tcp6_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
+ struct gro_tcp_item tcp6_items[RTE_GRO_MAX_BURST_ITEM_NUM] = {{0} };
+
/* allocate a reassembly table for UDP/IPv4 GRO */
struct gro_udp4_tbl udp_tbl;
struct gro_udp4_flow udp_flows[RTE_GRO_MAX_BURST_ITEM_NUM];
@@ -171,10 +184,10 @@ rte_gro_reassemble_burst(struct rte_mbuf **pkts,
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_TCP_IPV4 | RTE_GRO_TCP_IPV6 |
RTE_GRO_IPV4_VXLAN_UDP_IPV4 |
RTE_GRO_UDP_IPV4)) == 0))
return nb_pkts;
@@ -236,6 +249,18 @@ rte_gro_reassemble_burst(struct rte_mbuf **pkts,
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++) {
/*
@@ -276,6 +301,14 @@ rte_gro_reassemble_burst(struct rte_mbuf **pkts,
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];
}
@@ -283,9 +316,17 @@ rte_gro_reassemble_burst(struct rte_mbuf **pkts,
if ((nb_after_gro < nb_pkts)
|| (unprocess_num < nb_pkts)) {
i = 0;
+ /* Copy unprocessed packets */
+ if (unprocess_num > 0) {
+ memcpy(&pkts[i], unprocess_pkts,
+ sizeof(struct rte_mbuf *) *
+ unprocess_num);
+ i = unprocess_num;
+ }
+
/* Flush all packets from the tables */
if (do_vxlan_tcp_gro) {
- i = gro_vxlan_tcp4_tbl_timeout_flush(&vxlan_tcp_tbl,
+ i += gro_vxlan_tcp4_tbl_timeout_flush(&vxlan_tcp_tbl,
0, pkts, nb_pkts);
}
@@ -304,13 +345,11 @@ rte_gro_reassemble_burst(struct rte_mbuf **pkts,
i += gro_udp4_tbl_timeout_flush(&udp_tbl, 0,
&pkts[i], nb_pkts - i);
}
- /* Copy unprocessed packets */
- if (unprocess_num > 0) {
- memcpy(&pkts[i], unprocess_pkts,
- sizeof(struct rte_mbuf *) *
- unprocess_num);
+
+ if (do_tcp6_gro) {
+ i += gro_tcp6_tbl_timeout_flush(&tcp6_tbl, 0,
+ &pkts[i], nb_pkts - i);
}
- nb_after_gro = i + unprocess_num;
}
return nb_after_gro;
@@ -323,13 +362,13 @@ rte_gro_reassemble(struct rte_mbuf **pkts,
{
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_TCP_IPV4 | RTE_GRO_TCP_IPV6 |
RTE_GRO_IPV4_VXLAN_UDP_IPV4 |
RTE_GRO_UDP_IPV4)) == 0))
return nb_pkts;
@@ -338,6 +377,7 @@ rte_gro_reassemble(struct rte_mbuf **pkts,
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;
@@ -347,6 +387,7 @@ rte_gro_reassemble(struct rte_mbuf **pkts,
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();
@@ -371,6 +412,11 @@ rte_gro_reassemble(struct rte_mbuf **pkts,
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];
}
@@ -426,6 +472,15 @@ rte_gro_timeout_flush(void *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/gro/rte_gro.h b/lib/gro/rte_gro.h
index 9f9ed4935a..c83dfd9ad1 100644
--- a/lib/gro/rte_gro.h
+++ b/lib/gro/rte_gro.h
@@ -38,6 +38,9 @@ extern "C" {
#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
--
2.25.1
