@@ -498,3 +498,18 @@ Uses ``poll`` function to poll on the socket fd
for ``POLLIN`` events to read the packets from raw socket
to stream buffer and does ``rte_node_next_stream_move()``
when there are received packets.
+
+ip4_local
+~~~~~~~~~
+This node is an intermediate node that does ``packet_type`` lookup for
+the received ipv4 packets and the result determines each packets next node.
+
+On successful ``packet_type`` lookup, for any IPv4 protocol the result
+contains the ``next_node`` id and ``next-hop`` id with which the packet
+needs to be further processed.
+
+On packet_type lookup failure, objects are redirected to ``pkt_drop`` node.
+``rte_node_ip4_route_add()`` is control path API to add ipv4 address with 32 bit
+depth to receive to packets.
+To achieve home run, node use ``rte_node_stream_move()`` as mentioned in above
+sections.
@@ -37,174 +37,194 @@ digraph dpdk_inbuilt_nodes_flow {
ethdev_tx -> pkt_drop [color="cyan" style="dashed"]
pkt_cls->pkt_drop [color="cyan" style="dashed"]
kernel_tx -> kernel_rx [color="red" style="dashed"]
+ ip4_lookup -> ip4_local
+ ip4_local -> pkt_drop [color="cyan" style="dashed"]
}
-->
<!-- input nodes -->
<!-- Title: dpdk_inbuilt_nodes_flow Pages: 1 -->
-<svg width="470pt" height="425pt"
- viewBox="0.00 0.00 470.23 424.50" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 420.5)">
+<svg width="525pt" height="458pt"
+ viewBox="0.00 0.00 524.91 458.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 454)">
<title>dpdk_inbuilt_nodes_flow</title>
-<polygon fill="white" stroke="none" points="-4,4 -4,-420.5 466.23,-420.5 466.23,4 -4,4"/>
+<polygon fill="white" stroke="transparent" points="-4,4 -4,-454 520.91,-454 520.91,4 -4,4"/>
<!-- ethdev_rx -->
<g id="node1" class="node">
<title>ethdev_rx</title>
-<ellipse fill="none" stroke="green" cx="219.23" cy="-398.5" rx="47.77" ry="18"/>
-<text text-anchor="middle" x="219.23" y="-393.45" font-family="Times,serif" font-size="14.00">ethdev_rx</text>
+<ellipse fill="none" stroke="green" cx="120" cy="-432" rx="56.59" ry="18"/>
+<text text-anchor="middle" x="120" y="-428.3" font-family="Times,serif" font-size="14.00">ethdev_rx</text>
</g>
<!-- pkt_cls -->
<g id="node6" class="node">
<title>pkt_cls</title>
-<ellipse fill="none" stroke="red" cx="219.23" cy="-325.5" rx="37.53" ry="18"/>
-<text text-anchor="middle" x="219.23" y="-320.45" font-family="Times,serif" font-size="14.00">pkt_cls</text>
+<ellipse fill="none" stroke="red" cx="120" cy="-359" rx="42.79" ry="18"/>
+<text text-anchor="middle" x="120" y="-355.3" font-family="Times,serif" font-size="14.00">pkt_cls</text>
</g>
<!-- ethdev_rx->pkt_cls -->
<g id="edge1" class="edge">
<title>ethdev_rx->pkt_cls</title>
-<path fill="none" stroke="black" d="M219.23,-380.31C219.23,-372.55 219.23,-363.18 219.23,-354.45"/>
-<polygon fill="black" stroke="black" points="222.73,-354.53 219.23,-344.53 215.73,-354.53 222.73,-354.53"/>
+<path fill="none" stroke="black" d="M120,-413.81C120,-405.79 120,-396.05 120,-387.07"/>
+<polygon fill="black" stroke="black" points="123.5,-387.03 120,-377.03 116.5,-387.03 123.5,-387.03"/>
</g>
<!-- kernel_rx -->
<g id="node2" class="node">
<title>kernel_rx</title>
-<ellipse fill="none" stroke="green" cx="46.23" cy="-164" rx="46.23" ry="18"/>
-<text text-anchor="middle" x="46.23" y="-158.95" font-family="Times,serif" font-size="14.00">kernel_rx</text>
+<ellipse fill="none" stroke="green" cx="82" cy="-199" rx="53.89" ry="18"/>
+<text text-anchor="middle" x="82" y="-195.3" font-family="Times,serif" font-size="14.00">kernel_rx</text>
</g>
<!-- kernel_rx->pkt_cls -->
<g id="edge2" class="edge">
<title>kernel_rx->pkt_cls</title>
-<path fill="none" stroke="black" d="M41.45,-182.08C37.1,-201.37 33.27,-232.96 47.23,-255 73.68,-296.74 130.21,-313.41 171.26,-320.07"/>
-<polygon fill="black" stroke="black" points="170.73,-323.68 181.13,-321.66 171.74,-316.75 170.73,-323.68"/>
+<path fill="none" stroke="black" d="M70.87,-216.92C60.28,-235.27 47.29,-265.24 57,-290 64.12,-308.16 78.62,-324.37 91.92,-336.4"/>
+<polygon fill="black" stroke="black" points="89.69,-339.1 99.54,-342.99 94.26,-333.8 89.69,-339.1"/>
</g>
<!-- ethdev_tx -->
<g id="node3" class="node">
<title>ethdev_tx</title>
-<ellipse fill="none" stroke="magenta" cx="293.23" cy="-91" rx="47.26" ry="18"/>
-<text text-anchor="middle" x="293.23" y="-85.95" font-family="Times,serif" font-size="14.00">ethdev_tx</text>
+<ellipse fill="none" stroke="magenta" cx="338" cy="-91" rx="55.79" ry="18"/>
+<text text-anchor="middle" x="338" y="-87.3" font-family="Times,serif" font-size="14.00">ethdev_tx</text>
</g>
<!-- pkt_drop -->
<g id="node4" class="node">
<title>pkt_drop</title>
-<ellipse fill="none" stroke="cyan" cx="349.23" cy="-18" rx="44.19" ry="18"/>
-<text text-anchor="middle" x="349.23" y="-12.95" font-family="Times,serif" font-size="14.00">pkt_drop</text>
+<ellipse fill="none" stroke="cyan" cx="254" cy="-18" rx="51.99" ry="18"/>
+<text text-anchor="middle" x="254" y="-14.3" font-family="Times,serif" font-size="14.00">pkt_drop</text>
</g>
<!-- ethdev_tx->pkt_drop -->
<g id="edge14" class="edge">
<title>ethdev_tx->pkt_drop</title>
-<path fill="none" stroke="cyan" stroke-dasharray="5,2" d="M306.22,-73.53C313.15,-64.75 321.81,-53.76 329.55,-43.96"/>
-<polygon fill="cyan" stroke="cyan" points="332.87,-46.4 336.32,-36.38 327.37,-42.06 332.87,-46.4"/>
+<path fill="none" stroke="cyan" stroke-dasharray="5,2" d="M318.94,-73.89C307.58,-64.29 293,-51.96 280.53,-41.42"/>
+<polygon fill="cyan" stroke="cyan" points="282.59,-38.58 272.7,-34.8 278.07,-43.93 282.59,-38.58"/>
</g>
<!-- kernel_tx -->
<g id="node5" class="node">
<title>kernel_tx</title>
-<ellipse fill="none" stroke="blue" cx="102.23" cy="-237" rx="45.72" ry="18"/>
-<text text-anchor="middle" x="102.23" y="-231.95" font-family="Times,serif" font-size="14.00">kernel_tx</text>
+<ellipse fill="none" stroke="blue" cx="120" cy="-272" rx="53.89" ry="18"/>
+<text text-anchor="middle" x="120" y="-268.3" font-family="Times,serif" font-size="14.00">kernel_tx</text>
</g>
<!-- kernel_tx->kernel_rx -->
<g id="edge16" class="edge">
<title>kernel_tx->kernel_rx</title>
-<path fill="none" stroke="red" stroke-dasharray="5,2" d="M89.25,-219.53C82.32,-210.75 73.65,-199.76 65.92,-189.96"/>
-<polygon fill="red" stroke="red" points="68.09,-188.06 59.15,-182.38 62.6,-192.4 68.09,-188.06"/>
+<path fill="none" stroke="red" stroke-dasharray="5,2" d="M110.99,-254.17C106.52,-245.81 101,-235.51 95.99,-226.14"/>
+<polygon fill="red" stroke="red" points="99.01,-224.36 91.2,-217.2 92.84,-227.67 99.01,-224.36"/>
</g>
<!-- pkt_cls->pkt_drop -->
<g id="edge15" class="edge">
<title>pkt_cls->pkt_drop</title>
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+<polygon fill="cyan" stroke="cyan" points="194.21,-27.27 203.82,-22.81 193.52,-20.31 194.21,-27.27"/>
</g>
<!-- pkt_cls->kernel_tx -->
<g id="edge5" class="edge">
<title>pkt_cls->kernel_tx</title>
-<path fill="none" stroke="blue" d="M186.99,-315.75C170.62,-310.16 151.14,-301.64 136.48,-289.5 128.23,-282.66 121.2,-273.31 115.7,-264.46"/>
-<polygon fill="blue" stroke="blue" points="118.38,-263.1 110.34,-256.2 112.32,-266.61 118.38,-263.1"/>
-<text text-anchor="middle" x="176.61" y="-276.2" font-family="Times,serif" font-size="14.00">exception pkts</text>
+<path fill="none" stroke="blue" d="M120,-340.8C120,-329.16 120,-313.55 120,-300.24"/>
+<polygon fill="blue" stroke="blue" points="123.5,-300.18 120,-290.18 116.5,-300.18 123.5,-300.18"/>
+<text text-anchor="middle" x="172.5" y="-311.8" font-family="Times,serif" font-size="14.00">exception pkts</text>
</g>
<!-- ip4_lookup -->
<g id="node7" class="node">
<title>ip4_lookup</title>
-<ellipse fill="none" stroke="black" cx="219.23" cy="-237" rx="52.89" ry="18"/>
-<text text-anchor="middle" x="219.23" y="-231.95" font-family="Times,serif" font-size="14.00">ip4_lookup</text>
+<ellipse fill="none" stroke="black" cx="252" cy="-272" rx="60.39" ry="18"/>
+<text text-anchor="middle" x="252" y="-268.3" font-family="Times,serif" font-size="14.00">ip4_lookup</text>
</g>
<!-- pkt_cls->ip4_lookup -->
<g id="edge3" class="edge">
<title>pkt_cls->ip4_lookup</title>
-<path fill="none" stroke="black" d="M219.23,-307.41C219.23,-295.64 219.23,-279.73 219.23,-266.11"/>
-<polygon fill="black" stroke="black" points="222.73,-266.35 219.23,-256.35 215.73,-266.35 222.73,-266.35"/>
-<text text-anchor="middle" x="231.23" y="-276.2" font-family="Times,serif" font-size="14.00">ipv4</text>
+<path fill="none" stroke="black" d="M160.54,-352.79C182.64,-348.15 209.23,-339.41 228,-323 235.09,-316.81 240.26,-308.05 243.95,-299.6"/>
+<polygon fill="black" stroke="black" points="247.32,-300.57 247.62,-289.98 240.78,-298.07 247.32,-300.57"/>
+<text text-anchor="middle" x="254.5" y="-311.8" font-family="Times,serif" font-size="14.00">ipv4</text>
</g>
<!-- ip6_lookup -->
<g id="node8" class="node">
<title>ip6_lookup</title>
-<ellipse fill="none" stroke="black" cx="343.23" cy="-237" rx="52.89" ry="18"/>
-<text text-anchor="middle" x="343.23" y="-231.95" font-family="Times,serif" font-size="14.00">ip6_lookup</text>
+<ellipse fill="none" stroke="black" cx="439" cy="-272" rx="60.39" ry="18"/>
+<text text-anchor="middle" x="439" y="-268.3" font-family="Times,serif" font-size="14.00">ip6_lookup</text>
</g>
<!-- pkt_cls->ip6_lookup -->
<g id="edge4" class="edge">
<title>pkt_cls->ip6_lookup</title>
-<path fill="none" stroke="black" d="M239.99,-310.02C259.62,-296.33 289.35,-275.59 311.88,-259.87"/>
-<polygon fill="black" stroke="black" points="313.53,-262.29 319.73,-253.7 309.53,-256.55 313.53,-262.29"/>
-<text text-anchor="middle" x="304.23" y="-276.2" font-family="Times,serif" font-size="14.00">ipv6</text>
+<path fill="none" stroke="black" d="M157.52,-350.25C188.82,-343.6 234.51,-333.46 274,-323 313.2,-312.62 357.13,-299.22 389.79,-288.91"/>
+<polygon fill="black" stroke="black" points="391.08,-292.17 399.55,-285.81 388.96,-285.5 391.08,-292.17"/>
+<text text-anchor="middle" x="339.5" y="-311.8" font-family="Times,serif" font-size="14.00">ipv6</text>
</g>
<!-- ip4_lookup->pkt_drop -->
<g id="edge7" class="edge">
<title>ip4_lookup->pkt_drop</title>
-<path fill="none" stroke="cyan" stroke-dasharray="5,2" d="M192.86,-221.12C179.2,-211.83 163.82,-198.49 156.23,-182 149.55,-167.46 150.78,-161.04 156.23,-146 176.39,-90.45 198.32,-78.19 252.23,-54 269.14,-46.41 288.24,-39.24 304.98,-33.38"/>
-<polygon fill="cyan" stroke="cyan" points="305.75,-36.48 314.07,-29.92 303.47,-29.86 305.75,-36.48"/>
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</g>
<!-- ip4_rewrite -->
<g id="node9" class="node">
<title>ip4_rewrite</title>
-<ellipse fill="none" stroke="black" cx="218.23" cy="-164" rx="53.4" ry="18"/>
-<text text-anchor="middle" x="218.23" y="-158.95" font-family="Times,serif" font-size="14.00">ip4_rewrite</text>
+<ellipse fill="none" stroke="black" cx="294" cy="-199" rx="63.89" ry="18"/>
+<text text-anchor="middle" x="294" y="-195.3" font-family="Times,serif" font-size="14.00">ip4_rewrite</text>
</g>
<!-- ip4_lookup->ip4_rewrite -->
<g id="edge6" class="edge">
<title>ip4_lookup->ip4_rewrite</title>
-<path fill="none" stroke="black" d="M218.99,-218.81C218.88,-211.05 218.75,-201.68 218.63,-192.95"/>
-<polygon fill="black" stroke="black" points="222.11,-192.98 218.47,-183.03 215.11,-193.08 222.11,-192.98"/>
+<path fill="none" stroke="black" d="M261.95,-254.17C266.95,-245.72 273.12,-235.29 278.71,-225.85"/>
+<polygon fill="black" stroke="black" points="281.75,-227.59 283.83,-217.2 275.72,-224.02 281.75,-227.59"/>
+</g>
+<!-- ip4_local -->
+<g id="node11" class="node">
+<title>ip4_local</title>
+<ellipse fill="none" stroke="black" cx="136" cy="-145" rx="51.19" ry="18"/>
+<text text-anchor="middle" x="136" y="-141.3" font-family="Times,serif" font-size="14.00">ip4_local</text>
+</g>
+<!-- ip4_lookup->ip4_local -->
+<g id="edge17" class="edge">
+<title>ip4_lookup->ip4_local</title>
+<path fill="none" stroke="black" d="M218.11,-256.86C207.64,-251.39 196.61,-244.41 188,-236 169.45,-217.88 155.34,-191.74 146.53,-172.29"/>
+<polygon fill="black" stroke="black" points="149.72,-170.86 142.52,-163.08 143.3,-173.65 149.72,-170.86"/>
</g>
<!-- ip6_lookup->pkt_drop -->
<g id="edge11" class="edge">
<title>ip6_lookup->pkt_drop</title>
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</g>
<!-- ip6_rewrite -->
<g id="node10" class="node">
<title>ip6_rewrite</title>
-<ellipse fill="none" stroke="black" cx="343.23" cy="-164" rx="53.4" ry="18"/>
-<text text-anchor="middle" x="343.23" y="-158.95" font-family="Times,serif" font-size="14.00">ip6_rewrite</text>
+<ellipse fill="none" stroke="black" cx="439" cy="-199" rx="63.89" ry="18"/>
+<text text-anchor="middle" x="439" y="-195.3" font-family="Times,serif" font-size="14.00">ip6_rewrite</text>
</g>
<!-- ip6_lookup->ip6_rewrite -->
<g id="edge10" class="edge">
<title>ip6_lookup->ip6_rewrite</title>
-<path fill="none" stroke="black" d="M343.23,-218.81C343.23,-211.05 343.23,-201.68 343.23,-192.95"/>
-<polygon fill="black" stroke="black" points="346.73,-193.03 343.23,-183.03 339.73,-193.03 346.73,-193.03"/>
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+<polygon fill="black" stroke="black" points="442.5,-227.03 439,-217.03 435.5,-227.03 442.5,-227.03"/>
</g>
<!-- ip4_rewrite->ethdev_tx -->
<g id="edge8" class="edge">
<title>ip4_rewrite->ethdev_tx</title>
-<path fill="none" stroke="green" d="M235.63,-146.53C245.35,-137.33 257.64,-125.7 268.36,-115.54"/>
-<polygon fill="green" stroke="green" points="270.34,-118.55 275.19,-109.13 265.52,-113.47 270.34,-118.55"/>
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</g>
<!-- ip4_rewrite->pkt_drop -->
<g id="edge9" class="edge">
<title>ip4_rewrite->pkt_drop</title>
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</g>
<!-- ip6_rewrite->ethdev_tx -->
<g id="edge12" class="edge">
<title>ip6_rewrite->ethdev_tx</title>
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-<polygon fill="green" stroke="green" points="313.62,-115.87 305,-109.71 307.89,-119.9 313.62,-115.87"/>
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+<polygon fill="green" stroke="green" points="363.1,-113.27 353.67,-108.45 358.03,-118.1 363.1,-113.27"/>
</g>
<!-- ip6_rewrite->pkt_drop -->
<g id="edge13" class="edge">
<title>ip6_rewrite->pkt_drop</title>
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+<path fill="none" stroke="cyan" stroke-dasharray="5,2" d="M438.77,-180.67C437.49,-154.09 431.22,-103.19 403,-73 379.35,-47.7 342.93,-34.22 312.02,-27.06"/>
+<polygon fill="cyan" stroke="cyan" points="312.71,-23.63 302.2,-24.95 311.24,-30.47 312.71,-23.63"/>
+</g>
+<!-- ip4_local->pkt_drop -->
+<g id="edge18" class="edge">
+<title>ip4_local->pkt_drop</title>
+<path fill="none" stroke="cyan" stroke-dasharray="5,2" d="M142.47,-126.87C150.6,-107.23 166.18,-75.04 188,-54 195,-47.25 203.56,-41.45 212.16,-36.63"/>
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</g>
</svg>
new file mode 100644
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2023 Marvell International Ltd.
+ */
+
+#include <arpa/inet.h>
+#include <sys/socket.h>
+
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+#include <rte_graph.h>
+#include <rte_graph_worker.h>
+#include <rte_ip.h>
+#include <rte_lpm.h>
+#include <rte_hash.h>
+#include <rte_fbk_hash.h>
+#include <rte_jhash.h>
+#include <rte_hash_crc.h>
+
+
+#include "rte_node_ip4_api.h"
+
+#include "node_private.h"
+
+static uint16_t
+ip4_local_node_process_scalar(struct rte_graph *graph, struct rte_node *node,
+ void **objs, uint16_t nb_objs)
+{
+ void **to_next, **from;
+ uint16_t last_spec = 0;
+ rte_edge_t next_index;
+ struct rte_mbuf *mbuf;
+ uint16_t held = 0;
+ uint32_t l4;
+ int i;
+
+ /* Speculative next */
+ next_index = RTE_NODE_IP4_LOCAL_NEXT_UDP4_INPUT;
+
+ from = objs;
+ to_next = rte_node_next_stream_get(graph, node, next_index, nb_objs);
+ for (i = 0; i < nb_objs; i++) {
+ uint16_t next;
+
+ mbuf = (struct rte_mbuf *)objs[i];
+ l4 = mbuf->packet_type & RTE_PTYPE_L4_MASK;
+
+ next = (l4 == RTE_PTYPE_L4_UDP)
+ ? next_index
+ : RTE_NODE_IP4_LOCAL_NEXT_PKT_DROP;
+
+ if (unlikely(next_index != next)) {
+ /* Copy things successfully speculated till now */
+ rte_memcpy(to_next, from, last_spec * sizeof(from[0]));
+ from += last_spec;
+ to_next += last_spec;
+ held += last_spec;
+ last_spec = 0;
+
+ rte_node_enqueue_x1(graph, node, next, from[0]);
+ from += 1;
+ } else {
+ last_spec += 1;
+ }
+ }
+ /* !!! Home run !!! */
+ if (likely(last_spec == nb_objs)) {
+ rte_node_next_stream_move(graph, node, next_index);
+ return nb_objs;
+ }
+ held += last_spec;
+ rte_memcpy(to_next, from, last_spec * sizeof(from[0]));
+ rte_node_next_stream_put(graph, node, next_index, held);
+
+ return nb_objs;
+}
+
+static struct rte_node_register ip4_local_node = {
+ .process = ip4_local_node_process_scalar,
+ .name = "ip4_local",
+
+ .nb_edges = RTE_NODE_IP4_LOCAL_NEXT_PKT_DROP + 1,
+ .next_nodes = {
+ [RTE_NODE_IP4_LOCAL_NEXT_UDP4_INPUT] = "udp4_input",
+ [RTE_NODE_IP4_LOCAL_NEXT_PKT_DROP] = "pkt_drop",
+ },
+};
+
+RTE_NODE_REGISTER(ip4_local_node);
@@ -227,6 +227,7 @@ static struct rte_node_register ip4_lookup_node = {
.nb_edges = RTE_NODE_IP4_LOOKUP_NEXT_MAX,
.next_nodes = {
+ [RTE_NODE_IP4_LOOKUP_NEXT_IP4_LOCAL] = "ip4_local",
[RTE_NODE_IP4_LOOKUP_NEXT_REWRITE] = "ip4_rewrite",
[RTE_NODE_IP4_LOOKUP_NEXT_PKT_DROP] = "pkt_drop",
},
@@ -12,6 +12,7 @@ sources = files(
'ethdev_rx.c',
'ethdev_tx.c',
'ip4_lookup.c',
+ 'ip4_local.c',
'ip4_rewrite.c',
'ip6_lookup.c',
'ip6_rewrite.c',
@@ -30,10 +30,22 @@ enum rte_node_ip4_lookup_next {
/**< Rewrite node. */
RTE_NODE_IP4_LOOKUP_NEXT_PKT_DROP,
/**< Packet drop node. */
+ RTE_NODE_IP4_LOOKUP_NEXT_IP4_LOCAL,
+ /** IP Local node. */
RTE_NODE_IP4_LOOKUP_NEXT_MAX,
/**< Number of next nodes of lookup node. */
};
+/**
+ * IP4 Local next nodes.
+ */
+enum rte_node_ip4_local_next {
+ RTE_NODE_IP4_LOCAL_NEXT_UDP4_INPUT,
+ /**< ip4 Local node. */
+ RTE_NODE_IP4_LOCAL_NEXT_PKT_DROP,
+ /**< Packet drop node. */
+};
+
/**
* Add ipv4 route to lookup table.
*