From: Ronan Randles <ronan.randles@intel.com>
To: dev@dpdk.org
Cc: Harry van Haaren <harry.van.haaren@intel.com>,
Ronan Randles <ronan.randles@intel.com>
Subject: [PATCH v2 04/15] gen: add basic Rx and Tx routines and tests
Date: Fri, 21 Jan 2022 10:31:11 +0000 [thread overview]
Message-ID: <20220121103122.2926856-5-ronan.randles@intel.com> (raw)
In-Reply-To: <20220121103122.2926856-1-ronan.randles@intel.com>
From: Harry van Haaren <harry.van.haaren@intel.com>
This commit introduces functions for basic mbuf rx and tx.
This commit also contains a unit test that calls rte_gen_rx_burst
and rte_gen_tx_burst to send bursts of 32 packets repeatedly in
order to verify their functionality
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Signed-off-by: Ronan Randles <ronan.randles@intel.com>
---
app/test/test_gen.c | 46 ++++++++++++++++++++++++++++++++++++++++++
lib/gen/meson.build | 1 +
lib/gen/rte_gen.c | 43 +++++++++++++++++++++++++++++++++++++++
lib/gen/rte_gen.h | 49 +++++++++++++++++++++++++++++++++++++++++++++
lib/gen/version.map | 2 ++
5 files changed, 141 insertions(+)
diff --git a/app/test/test_gen.c b/app/test/test_gen.c
index f53f4a6608..ceacd8c7c4 100644
--- a/app/test/test_gen.c
+++ b/app/test/test_gen.c
@@ -8,6 +8,8 @@
#include "test.h"
+#define BURST_MAX 32
+
static struct rte_mempool *mp;
static int
@@ -36,12 +38,56 @@ test_gen_create(void)
return 0;
}
+static int
+test_gen_basic_rxtx(void)
+{
+ struct rte_gen *gen = rte_gen_create(mp);
+ TEST_ASSERT_FAIL(gen, "Expected valid pointer after create()");
+
+ struct rte_mbuf *bufs[BURST_MAX];
+ uint16_t nb_rx = rte_gen_rx_burst(gen, bufs, BURST_MAX);
+ TEST_ASSERT_EQUAL(nb_rx, BURST_MAX, "Expected rx packet burst.");
+
+ uint64_t latency[BURST_MAX];
+ uint16_t nb_tx = rte_gen_tx_burst(gen, bufs, latency, BURST_MAX);
+ TEST_ASSERT_EQUAL(nb_tx, BURST_MAX, "Expected tx packet burst.");
+
+ rte_gen_destroy(gen);
+ return 0;
+}
+
+static int
+test_gen_loop_rxtx(void)
+{
+ struct rte_gen *gen = rte_gen_create(mp);
+ TEST_ASSERT_FAIL(gen, "Expected valid pointer after create()");
+
+ uint32_t total_sent = 0;
+
+ while (total_sent < 1000000) {
+ struct rte_mbuf *bufs[BURST_MAX];
+ uint16_t nb_rx = rte_gen_rx_burst(gen, bufs, BURST_MAX);
+ TEST_ASSERT_EQUAL(nb_rx, BURST_MAX, "Expected rx packet burst.");
+
+ uint64_t latency[BURST_MAX];
+ uint16_t nb_tx = rte_gen_tx_burst(gen, bufs, latency, nb_rx);
+ TEST_ASSERT_EQUAL(nb_tx, BURST_MAX, "Expected tx packet burst.");
+
+ total_sent += nb_tx;
+ }
+
+ rte_gen_destroy(gen);
+ return 0;
+}
+
static struct unit_test_suite gen_suite = {
.suite_name = "gen: packet generator unit test suite",
.setup = testsuite_setup,
.teardown = testsuite_teardown,
.unit_test_cases = {
TEST_CASE_ST(NULL, NULL, test_gen_create),
+ TEST_CASE_ST(NULL, NULL, test_gen_basic_rxtx),
+ TEST_CASE_ST(NULL, NULL, test_gen_loop_rxtx),
TEST_CASES_END() /**< NULL terminate unit test array */
}
};
diff --git a/lib/gen/meson.build b/lib/gen/meson.build
index 3c5d854645..753984cbba 100644
--- a/lib/gen/meson.build
+++ b/lib/gen/meson.build
@@ -3,3 +3,4 @@
sources = files('rte_gen.c')
headers = files('rte_gen.h')
+deps += ['mempool', 'mbuf']
diff --git a/lib/gen/rte_gen.c b/lib/gen/rte_gen.c
index d993772422..f0ad57fa81 100644
--- a/lib/gen/rte_gen.c
+++ b/lib/gen/rte_gen.c
@@ -4,8 +4,11 @@
#include "rte_gen.h"
+#include <rte_mbuf.h>
#include <rte_malloc.h>
+#define GEN_MAX_BURST 32
+
/** Structure that represents a traffic generator. */
struct rte_gen {
/* Mempool that buffers are retrieved from. */
@@ -31,3 +34,43 @@ rte_gen_destroy(struct rte_gen *gen)
{
rte_free(gen);
}
+
+uint16_t
+rte_gen_rx_burst(struct rte_gen *gen,
+ struct rte_mbuf **rx_pkts,
+ const uint16_t nb_pkts)
+{
+ /* Get a bulk of nb_pkts from the mempool. */
+ int err = rte_mempool_get_bulk(gen->mp, (void **)rx_pkts, nb_pkts);
+ if (err)
+ return 0;
+
+ const uint32_t pkt_len = 64;
+
+ uint32_t i;
+ for (i = 0; i < nb_pkts; i++) {
+ struct rte_mbuf *m = rx_pkts[i];
+ uint8_t *pkt_data = rte_pktmbuf_mtod(m, uint8_t *);
+
+ memset(pkt_data, 0, pkt_len);
+
+ m->pkt_len = pkt_len;
+ m->data_len = pkt_len;
+ }
+
+ return nb_pkts;
+}
+
+uint16_t
+rte_gen_tx_burst(struct rte_gen *gen,
+ struct rte_mbuf **tx_pkts,
+ uint64_t *pkt_latencies,
+ const uint16_t nb_pkts)
+{
+ RTE_SET_USED(gen);
+ RTE_SET_USED(pkt_latencies);
+
+ rte_pktmbuf_free_bulk(tx_pkts, nb_pkts);
+
+ return nb_pkts;
+}
diff --git a/lib/gen/rte_gen.h b/lib/gen/rte_gen.h
index 5b30430f9e..09ee1e8872 100644
--- a/lib/gen/rte_gen.h
+++ b/lib/gen/rte_gen.h
@@ -25,6 +25,7 @@ extern "C" {
struct rte_gen;
/* Forward declarations for DPDK componeents. */
+struct rte_mbuf;
struct rte_mempool;
/* Allocate and initialize a traffic generator instance. */
@@ -37,6 +38,54 @@ __rte_experimental
void
rte_gen_destroy(struct rte_gen *gen);
+/**
+ * Call to receive a burst of generated packets
+ *
+ * @param gen
+ * Gen instance to be used.
+ * @param rx_pkts
+ * mbuf where packets will be generated.
+ * @param nb_pkts
+ * number of packets to be generated
+ *
+ * @retval nb_pkts
+ * On success the number of rx'ed packets will be returned
+ * @retval 0
+ * Failure.
+ */
+__rte_experimental
+uint16_t
+rte_gen_rx_burst(struct rte_gen *gen,
+ struct rte_mbuf **rx_pkts,
+ const uint16_t nb_pkts);
+
+/** Call to transmit a burst of traffic back to the generator.
+ * This allows the generator to calculate stats/properties of the stream.
+ *
+ * If the pkt_latencies parameter is not NULL, it is expected to be a pointer
+ * to an array of uint64_t values that has nb_pkts in length. Each individual
+ * packet latency will be stored to the array.
+ *
+ * @param gen
+ * Gen instance to be used.
+ * @param tx_pkts
+ * mbuf to be used to tx packets
+ * @param pkt_latencies
+ * Array to store latencies of sent packets
+ * @param nb_pkts
+ * The number of packets to be tx'ed
+ *
+ * @retval nb_pkts
+ * On success the number of packets tx'ed is returned
+ */
+__rte_experimental
+uint16_t
+rte_gen_tx_burst(struct rte_gen *gen,
+ struct rte_mbuf **tx_pkts,
+ uint64_t *pkt_latencies,
+ const uint16_t nb_pkts);
+
+
#ifdef __cplusplus
}
#endif
diff --git a/lib/gen/version.map b/lib/gen/version.map
index d8a26eb53a..bdd25add6f 100644
--- a/lib/gen/version.map
+++ b/lib/gen/version.map
@@ -3,4 +3,6 @@ EXPERIMENTAL {
rte_gen_create;
rte_gen_destroy;
+ rte_gen_rx_burst;
+ rte_gen_tx_burst;
};
--
2.25.1
next prev parent reply other threads:[~2022-01-21 10:31 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-14 14:12 [PATCH 00/12] add packet generator library and example app Ronan Randles
2021-12-14 14:12 ` [PATCH 01/12] net: add string to IPv4 parse function Ronan Randles
2021-12-14 17:31 ` Morten Brørup
2021-12-15 9:27 ` Bruce Richardson
2021-12-15 9:35 ` Morten Brørup
2021-12-15 10:11 ` Bruce Richardson
2022-01-19 14:20 ` Thomas Monjalon
2021-12-14 14:12 ` [PATCH 02/12] net: add function to pretty print IPv4 Ronan Randles
2021-12-14 16:08 ` Stephen Hemminger
2021-12-14 17:42 ` Morten Brørup
2021-12-14 17:31 ` Morten Brørup
2021-12-15 1:06 ` Ananyev, Konstantin
2021-12-15 3:20 ` Stephen Hemminger
2021-12-15 7:23 ` Morten Brørup
2021-12-15 13:06 ` Ananyev, Konstantin
2022-01-19 14:24 ` Thomas Monjalon
2022-01-19 14:41 ` Van Haaren, Harry
2021-12-14 14:12 ` [PATCH 03/12] gen: add files for initial traffic generation library Ronan Randles
2021-12-14 14:12 ` [PATCH 04/12] gen: add basic Rx and Tx routines and tests Ronan Randles
2021-12-14 14:12 ` [PATCH 05/12] gen: add raw packet data API " Ronan Randles
2021-12-15 12:40 ` Jerin Jacob
2021-12-17 11:40 ` Van Haaren, Harry
2021-12-17 16:19 ` Thomas Monjalon
2021-12-20 10:21 ` Van Haaren, Harry
2022-01-19 14:56 ` Thomas Monjalon
2022-01-20 10:21 ` Van Haaren, Harry
2022-01-21 10:45 ` Van Haaren, Harry
2021-12-20 13:21 ` Jerin Jacob
2022-01-21 14:20 ` Xueming(Steven) Li
2021-12-14 14:12 ` [PATCH 06/12] gen: add parsing infrastructure and Ether protocol Ronan Randles
2021-12-14 14:12 ` [PATCH 07/12] gen: add gen IP parsing Ronan Randles
2021-12-14 14:12 ` [PATCH 08/12] examples/generator: import code from basicfwd.c Ronan Randles
2021-12-14 14:12 ` [PATCH 09/12] examples/generator: enable gen library for traffic gen Ronan Randles
2021-12-14 14:12 ` [PATCH 10/12] examples/generator: telemetry support Ronan Randles
2021-12-14 14:12 ` [PATCH 11/12] examples/generator: link status check added Ronan Randles
2021-12-14 14:12 ` [PATCH 12/12] examples/generator: line rate limiting Ronan Randles
2021-12-14 16:10 ` Stephen Hemminger
2021-12-14 14:57 ` [PATCH 00/12] add packet generator library and example app Bruce Richardson
2021-12-14 15:59 ` Randles, Ronan
2022-01-12 16:18 ` Morten Brørup
2021-12-15 12:31 ` Jerin Jacob
2021-12-15 14:07 ` Bruce Richardson
2022-01-21 10:31 ` [PATCH v2 00/15] " Ronan Randles
2022-01-21 10:31 ` [PATCH v2 01/15] net: add string to IPv4 parse function Ronan Randles
2022-01-21 10:31 ` [PATCH v2 02/15] net: add function to pretty print IPv4 Ronan Randles
2022-01-21 16:20 ` Stephen Hemminger
2022-01-21 10:31 ` [PATCH v2 03/15] gen: add files for initial traffic generation library Ronan Randles
2022-01-21 10:31 ` Ronan Randles [this message]
2022-01-21 10:31 ` [PATCH v2 05/15] gen: add raw packet data API and tests Ronan Randles
2022-01-21 10:31 ` [PATCH v2 06/15] gen: add parsing infrastructure and Ether protocol Ronan Randles
2022-01-21 10:31 ` [PATCH v2 07/15] gen: add gen IP parsing Ronan Randles
2022-01-21 10:31 ` [PATCH v2 08/15] examples/generator: import code from basicfwd.c Ronan Randles
2022-01-21 10:31 ` [PATCH v2 09/15] examples/generator: enable gen library for traffic gen Ronan Randles
2022-01-21 10:31 ` [PATCH v2 10/15] examples/generator: telemetry support Ronan Randles
2022-01-21 10:31 ` [PATCH v2 11/15] examples/generator: link status check added Ronan Randles
2022-01-21 10:31 ` [PATCH v2 12/15] examples/generator: line rate limiting Ronan Randles
2022-01-21 10:31 ` [PATCH v2 13/15] gen: add UDP support Ronan Randles
2022-01-21 10:31 ` [PATCH v2 14/15] net/vxlan: instance flag endianness refactored Ronan Randles
2022-01-21 10:31 ` [PATCH v2 15/15] gen: add VXLAN support Ronan Randles
2022-01-21 14:44 ` [PATCH 00/12] add packet generator library and example app Xueming(Steven) Li
2022-01-21 15:24 ` Van Haaren, Harry
2022-01-24 10:48 ` Ananyev, Konstantin
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