From: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
To: dev@dpdk.org
Subject: [PATCH V5 4/6] examples/pipeline: add packet mirroring example
Date: Wed, 6 Apr 2022 19:55:33 +0100 [thread overview]
Message-ID: <20220406185535.73084-4-cristian.dumitrescu@intel.com> (raw)
In-Reply-To: <20220406185535.73084-1-cristian.dumitrescu@intel.com>
Add example program to illustrate packet mirroring.
Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
---
examples/pipeline/examples/mirroring.cli | 43 ++++++++++++
examples/pipeline/examples/mirroring.spec | 80 +++++++++++++++++++++++
2 files changed, 123 insertions(+)
create mode 100644 examples/pipeline/examples/mirroring.cli
create mode 100644 examples/pipeline/examples/mirroring.spec
diff --git a/examples/pipeline/examples/mirroring.cli b/examples/pipeline/examples/mirroring.cli
new file mode 100644
index 0000000000..46d57db4ec
--- /dev/null
+++ b/examples/pipeline/examples/mirroring.cli
@@ -0,0 +1,43 @@
+; SPDX-License-Identifier: BSD-3-Clause
+; Copyright(c) 2022 Intel Corporation
+
+;
+; Customize the LINK parameters to match your setup.
+;
+mempool MEMPOOL0 buffer 2304 pool 32K cache 256 cpu 0
+
+link LINK0 dev 0000:18:00.0 rxq 1 128 MEMPOOL0 txq 1 512 promiscuous on
+link LINK1 dev 0000:18:00.1 rxq 1 128 MEMPOOL0 txq 1 512 promiscuous on
+link LINK2 dev 0000:3b:00.0 rxq 1 128 MEMPOOL0 txq 1 512 promiscuous on
+link LINK3 dev 0000:3b:00.1 rxq 1 128 MEMPOOL0 txq 1 512 promiscuous on
+
+;
+; PIPELINE0 setup.
+;
+pipeline PIPELINE0 create 0
+pipeline PIPELINE0 mirror slots 4 sessions 16
+
+pipeline PIPELINE0 port in 0 link LINK0 rxq 0 bsz 32
+pipeline PIPELINE0 port in 1 link LINK1 rxq 0 bsz 32
+pipeline PIPELINE0 port in 2 link LINK2 rxq 0 bsz 32
+pipeline PIPELINE0 port in 3 link LINK3 rxq 0 bsz 32
+
+pipeline PIPELINE0 port out 0 link LINK0 txq 0 bsz 32
+pipeline PIPELINE0 port out 1 link LINK1 txq 0 bsz 32
+pipeline PIPELINE0 port out 2 link LINK2 txq 0 bsz 32
+pipeline PIPELINE0 port out 3 link LINK3 txq 0 bsz 32
+
+pipeline PIPELINE0 build ./examples/pipeline/examples/mirroring.spec
+
+;
+; Packet mirroring sessions.
+;
+pipeline PIPELINE0 mirror session 0 port 1 clone fast truncate 0
+pipeline PIPELINE0 mirror session 1 port 2 clone slow truncate 0
+pipeline PIPELINE0 mirror session 2 port 3 clone slow truncate 64
+pipeline PIPELINE0 mirror session 3 port 0 clone slow truncate 128
+
+;
+; Pipelines-to-threads mapping.
+;
+thread 1 pipeline PIPELINE0 enable
diff --git a/examples/pipeline/examples/mirroring.spec b/examples/pipeline/examples/mirroring.spec
new file mode 100644
index 0000000000..024e3efad5
--- /dev/null
+++ b/examples/pipeline/examples/mirroring.spec
@@ -0,0 +1,80 @@
+; SPDX-License-Identifier: BSD-3-Clause
+; Copyright(c) 2022 Intel Corporation
+
+; This simple example illustrates how to perform packet mirroring. The "mirror" instruction is used
+; to flag the current packet for mirroring, which means that at TX time, before the current packet
+; is sent out, it will first be cloned (using either the fast or the slow/deep cloning method) and
+; the clone packet sent out on the output port specified by the mirror session.
+;
+; In this example, the UDP packets with destination port 5000 are mirrored to the output port
+; specified by the mirror session 0, while the rest of the packets are not mirrored. Therefore, for
+; every UDP input packet with this specific destination port there will be two output packets (the
+; current packet and its clone packet), while for every other input packet there will be a single
+; output packet.
+
+//
+// Headers
+//
+struct ethernet_h {
+ bit<48> dst_addr
+ bit<48> src_addr
+ bit<16> ethertype
+}
+
+struct ipv4_h {
+ bit<8> ver_ihl
+ bit<8> diffserv
+ bit<16> total_len
+ bit<16> identification
+ bit<16> flags_offset
+ bit<8> ttl
+ bit<8> protocol
+ bit<16> hdr_checksum
+ bit<32> src_addr
+ bit<32> dst_addr
+}
+
+struct udp_h {
+ bit<16> src_port
+ bit<16> dst_port
+ bit<16> length
+ bit<16> checksum
+}
+
+header ethernet instanceof ethernet_h
+header ipv4 instanceof ipv4_h
+header udp instanceof udp_h
+
+//
+// Meta-data.
+//
+struct metadata_t {
+ bit<32> port
+ bit<32> mirror_slot
+ bit<32> mirror_session
+}
+
+metadata instanceof metadata_t
+
+//
+// Pipeline.
+//
+apply {
+ rx m.port
+ extract h.ethernet
+ extract h.ipv4
+ extract h.udp
+
+ //
+ // Mark for mirroring all packets with UDP destination port of 5000.
+ //
+ MIRROR_UDP_DST_PORT_5000 : jmpneq EMIT h.udp.dst_port 5000
+ mov m.mirror_slot 0
+ mov m.mirror_session 0
+ mirror m.mirror_slot m.mirror_session
+
+ EMIT : emit h.ethernet
+ emit h.ipv4
+ emit h.udp
+ tx m.port
+}
--
2.17.1
next prev parent reply other threads:[~2022-04-06 18:55 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-04 18:06 [PATCH 1/3] port: support packet mirroring Cristian Dumitrescu
2022-03-04 18:06 ` [PATCH 2/3] pipeline: " Cristian Dumitrescu
2022-03-04 18:06 ` [PATCH 3/3] examples/pipeline: " Cristian Dumitrescu
2022-04-05 12:30 ` [PATCH V2 1/3] port: " Cristian Dumitrescu
2022-04-05 12:30 ` [PATCH V2 2/3] pipeline: " Cristian Dumitrescu
2022-04-05 12:30 ` [PATCH V2 3/3] examples/pipeline: " Cristian Dumitrescu
2022-04-05 21:36 ` [PATCH V3 1/4] port: " Cristian Dumitrescu
2022-04-05 21:36 ` [PATCH V3 2/4] pipeline: " Cristian Dumitrescu
2022-04-05 21:36 ` [PATCH V3 3/4] examples/pipeline: " Cristian Dumitrescu
2022-04-05 21:36 ` [PATCH V3 4/4] pipeline: support packet recirculation Cristian Dumitrescu
2022-04-06 18:48 ` [PATCH V4 1/6] port: support packet mirroring Cristian Dumitrescu
2022-04-06 18:48 ` [PATCH V4 2/6] pipeline: " Cristian Dumitrescu
2022-04-06 18:48 ` [PATCH V4 3/6] examples/pipeline: " Cristian Dumitrescu
2022-04-06 18:48 ` [PATCH V4 4/6] examples/pipeline: add packet mirroring example Cristian Dumitrescu
2022-04-06 18:48 ` [PATCH V4 5/6] pipeline: support packet recirculation Cristian Dumitrescu
2022-04-06 18:48 ` [PATCH V4 6/6] examples/pipeline: add packet recirculation example Cristian Dumitrescu
2022-04-06 18:55 ` [PATCH V5 1/6] port: support packet mirroring Cristian Dumitrescu
2022-04-06 18:55 ` [PATCH V5 2/6] pipeline: " Cristian Dumitrescu
2022-04-06 18:55 ` [PATCH V5 3/6] examples/pipeline: " Cristian Dumitrescu
2022-04-06 18:55 ` Cristian Dumitrescu [this message]
2022-04-06 18:55 ` [PATCH V5 5/6] pipeline: support packet recirculation Cristian Dumitrescu
2022-04-06 18:55 ` [PATCH V5 6/6] examples/pipeline: add packet recirculation example Cristian Dumitrescu
2022-06-01 12:44 ` [PATCH V5 1/6] port: support packet mirroring Thomas Monjalon
2022-06-01 13:01 ` Thomas Monjalon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220406185535.73084-4-cristian.dumitrescu@intel.com \
--to=cristian.dumitrescu@intel.com \
--cc=dev@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).