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From: Tomasz Kulasek <tomaszx.kulasek@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v3 2/5] test: add rte_pktmbuf_linearize unit tests
Date: Thu,  5 Jan 2017 10:12:33 +0100	[thread overview]
Message-ID: <1483607556-21460-3-git-send-email-tomaszx.kulasek@intel.com> (raw)
In-Reply-To: <1483607556-21460-1-git-send-email-tomaszx.kulasek@intel.com>

This patch tests rte_pktmbuf_linearize functionality:

 1) Creates banch of segmented mbufs with different size and number of
    segments.
 2) Generates pkt_len bytes of random data.
 3) Fills noncontigouos mbuf with randomly generated data.
 4) Uses rte_pktmbuf_linearize to coalesce segmented buffer into one
    contiguous.
 5) Verifies data in linearized buffer.

Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
---
 app/test/test_mbuf.c |  123 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)

diff --git a/app/test/test_mbuf.c b/app/test/test_mbuf.c
index c0823ea..39577e7 100644
--- a/app/test/test_mbuf.c
+++ b/app/test/test_mbuf.c
@@ -930,6 +930,124 @@
 	return 0;
 }
 
+static int
+test_mbuf_linearize(int pkt_len, int nb_segs) {
+
+	struct rte_mbuf *m = NULL, *mbuf_src = NULL;
+	uint8_t data[pkt_len], *src, *dst;
+	int data_len = 0;
+	int i, size;
+	int t_len;
+
+	if (pkt_len < 1) {
+		printf("Packet size must be 1 or more (is %d)\n", pkt_len);
+		return -1;
+	}
+
+	if (nb_segs < 1) {
+		printf("Number of segments must be 1 or more (is %d)\n",
+				nb_segs);
+		return -1;
+	}
+
+	/* Setup buffer */
+	for (i = 0; i < pkt_len; i++)
+		data[i] = (uint8_t) rte_rand();
+
+	t_len = pkt_len >= nb_segs ? pkt_len / nb_segs : 1;
+	src = data;
+	size = pkt_len;
+
+	/* Create chained mbuf_src and fill it generated data */
+	for (i = 0; size > 0; i++) {
+
+		m = rte_pktmbuf_alloc(pktmbuf_pool);
+		if (i == 0)
+			mbuf_src = m;
+
+		if (!m) {
+			printf("Cannot create segment for source mbuf");
+			goto fail;
+		}
+
+		/* Make sure if tailroom is zeroed */
+		memset(rte_pktmbuf_mtod(m, uint8_t *), 0,
+				rte_pktmbuf_tailroom(m));
+
+		data_len = size > t_len ? t_len : size;
+		dst = (uint8_t *)rte_pktmbuf_append(m, data_len);
+		if (!dst) {
+			printf("Cannot append %d bytes to the mbuf\n",
+					data_len);
+			goto fail;
+		}
+
+		rte_memcpy(dst, src, data_len);
+		src += data_len;
+
+		if (mbuf_src != m)
+			rte_pktmbuf_chain(mbuf_src, m);
+
+		size -= data_len;
+
+	}
+
+	/* Create destination buffer to store coalesced data */
+	if (rte_pktmbuf_linearize(mbuf_src)) {
+		printf("Mbuf linearization failed\n");
+		goto fail;
+	}
+
+	if (!rte_pktmbuf_is_contiguous(mbuf_src)) {
+		printf("Source buffer should be contiguous after "
+				"linearization\n");
+		goto fail;
+	}
+
+	src = rte_pktmbuf_mtod(mbuf_src, uint8_t *);
+
+	if (memcmp(src, data, rte_pktmbuf_pkt_len(mbuf_src))) {
+		printf("Incorrect data in coalesced mbuf\n");
+		goto fail;
+	}
+
+	if (mbuf_src)
+		rte_pktmbuf_free(mbuf_src);
+	return 0;
+
+fail:
+	if (mbuf_src)
+		rte_pktmbuf_free(mbuf_src);
+	return -1;
+}
+
+static int
+test_mbuf_linearize_check(void)
+{
+	struct test_mbuf_array {
+		int size;
+		int nb_segs;
+	} mbuf_array[5] = {
+			{ 128, 1 },
+			{ 64, 64 },
+			{ 512, 10 },
+			{ 250, 11 },
+			{ 123, 8 },
+	};
+	unsigned int i;
+
+	printf("Test mbuf linearize API\n");
+
+	for (i = 0; i < RTE_DIM(mbuf_array); i++)
+		if (test_mbuf_linearize(mbuf_array[i].size,
+				mbuf_array[i].nb_segs)) {
+			printf("Test failed for %d, %d\n", mbuf_array[i].size,
+					mbuf_array[i].nb_segs);
+			return -1;
+		}
+
+	return 0;
+}
 
 static int
 test_mbuf(void)
@@ -1023,6 +1141,11 @@
 		printf("test_failing_mbuf_sanity_check() failed\n");
 		return -1;
 	}
+
+	if (test_mbuf_linearize_check() < 0) {
+		printf("test_mbuf_linearize_check() failed\n");
+		return -1;
+	}
 	return 0;
 }
 
-- 
1.7.9.5

  parent reply	other threads:[~2017-01-05  9:12 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-02 17:07 [dpdk-dev] [PATCH 0/4] Chained Mbufs support in SW PMDs Tomasz Kulasek
2016-12-02 17:07 ` [dpdk-dev] [PATCH 1/4] rte_mbuf: add rte_pktmbuf_coalesce Tomasz Kulasek
2016-12-16 10:06   ` Olivier Matz
2016-12-29 15:58     ` Kulasek, TomaszX
2016-12-02 17:07 ` [dpdk-dev] [PATCH 2/4] test: add rte_pktmbuf_coalesce unit tests Tomasz Kulasek
2016-12-02 17:07 ` [dpdk-dev] [PATCH 3/4] crypto: add sgl support for sw PMDs Tomasz Kulasek
2016-12-03  8:28   ` Michał Mirosław
2016-12-12 10:01     ` Kulasek, TomaszX
2016-12-02 17:07 ` [dpdk-dev] [PATCH 4/4] test: add sgl unit tests for crypto devices Tomasz Kulasek
2016-12-29 17:12 ` [dpdk-dev] [PATCH v2 0/5] Chained Mbufs support in SW PMDs Tomasz Kulasek
2016-12-29 17:12   ` [dpdk-dev] [PATCH v2 1/5] rte_mbuf: add rte_pktmbuf_linearize Tomasz Kulasek
2016-12-29 17:12   ` [dpdk-dev] [PATCH v2 2/5] test: add rte_pktmbuf_linearize unit tests Tomasz Kulasek
2016-12-29 17:12   ` [dpdk-dev] [PATCH v2 3/5] crypto: add sgl support in sw PMDs Tomasz Kulasek
2016-12-29 17:12   ` [dpdk-dev] [PATCH v2 4/5] crypto: add sgl support in openssl PMD Tomasz Kulasek
2016-12-29 17:12   ` [dpdk-dev] [PATCH v2 5/5] test: add sgl unit tests for crypto devices Tomasz Kulasek
2017-01-05  9:12   ` [dpdk-dev] [PATCH v3 0/5] Chained Mbufs support in SW PMDs Tomasz Kulasek
2017-01-05  9:12     ` [dpdk-dev] [PATCH v3 1/5] rte_mbuf: add rte_pktmbuf_linearize Tomasz Kulasek
2017-01-05 15:37       ` De Lara Guarch, Pablo
2017-01-05 16:52         ` Kulasek, TomaszX
2017-01-05  9:12     ` Tomasz Kulasek [this message]
2017-01-05  9:12     ` [dpdk-dev] [PATCH v3 3/5] crypto: add sgl support in sw PMDs Tomasz Kulasek
2017-01-05  9:12     ` [dpdk-dev] [PATCH v3 4/5] crypto: add sgl support in openssl PMD Tomasz Kulasek
2017-01-05  9:12     ` [dpdk-dev] [PATCH v3 5/5] test: add sgl unit tests for crypto devices Tomasz Kulasek
2017-01-05 16:44     ` [dpdk-dev] [PATCH v4] rte_mbuf: add rte_pktmbuf_linearize Tomasz Kulasek
2017-01-10 16:50       ` Olivier MATZ
2017-01-12  9:40       ` [dpdk-dev] [PATCH v5] mbuf: add a function to linearize a packet Tomasz Kulasek
2017-01-13 15:32         ` Olivier Matz
2017-01-13 15:40           ` Kulasek, TomaszX
2017-01-15 18:32           ` Thomas Monjalon
2017-01-05 16:46     ` [dpdk-dev] [PATCH v4 0/3] Chained Mbufs support in SW PMDs Tomasz Kulasek
2017-01-05 16:46       ` [dpdk-dev] [PATCH v4 1/3] crypto: add sgl support in sw PMDs Tomasz Kulasek
2017-01-05 16:46       ` [dpdk-dev] [PATCH v4 2/3] crypto: add sgl support in openssl PMD Tomasz Kulasek
2017-01-05 16:46       ` [dpdk-dev] [PATCH v4 3/3] test: add sgl unit tests for crypto devices Tomasz Kulasek
2017-01-13 15:23       ` [dpdk-dev] [PATCH v5 0/3] Chained Mbufs support in SW PMDs Tomasz Kulasek
2017-01-13 15:23         ` [dpdk-dev] [PATCH v5 1/3] crypto: add sgl support in sw PMDs Tomasz Kulasek
2017-01-16 16:08           ` Declan Doherty
2017-01-13 15:23         ` [dpdk-dev] [PATCH v5 2/3] crypto: add sgl support in openssl PMD Tomasz Kulasek
2017-01-16 16:10           ` Declan Doherty
2017-01-13 15:23         ` [dpdk-dev] [PATCH v5 3/3] test: add sgl unit tests for crypto devices Tomasz Kulasek
2017-01-16 16:11           ` Declan Doherty
2017-01-16 19:00         ` [dpdk-dev] [PATCH v5 0/3] Chained Mbufs support in SW PMDs De Lara Guarch, Pablo

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