Imported upstream release 16.04

* gbp import-orig ../dpdk-16.04.tar.xz

Change-Id: Iac2196db782ba322f6974d8a752acc34ce5024c3
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/examples/quota_watermark/qw/init.c b/examples/quota_watermark/qw/init.c
new file mode 100644
index 00000000..afc13665
--- /dev/null
+++ b/examples/quota_watermark/qw/init.c
@@ -0,0 +1,174 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include <rte_eal.h>
+
+#include <rte_common.h>
+#include <rte_errno.h>
+#include <rte_ethdev.h>
+#include <rte_memzone.h>
+#include <rte_ring.h>
+#include <rte_string_fns.h>
+
+#include "args.h"
+#include "init.h"
+#include "main.h"
+#include "../include/conf.h"
+
+
+static const struct rte_eth_conf port_conf = {
+	.rxmode = {
+		.split_hdr_size = 0,
+		.header_split   = 0, /**< Header Split disabled */
+		.hw_ip_checksum = 0, /**< IP checksum offload disabled */
+		.hw_vlan_filter = 0, /**< VLAN filtering disabled */
+		.jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
+		.hw_strip_crc   = 0, /**< CRC stripped by hardware */
+	},
+	.txmode = {
+		.mq_mode = ETH_DCB_NONE,
+	},
+};
+
+static struct rte_eth_fc_conf fc_conf = {
+    .mode       = RTE_FC_TX_PAUSE,
+    .high_water = 80 * 510 / 100,
+    .low_water  = 60 * 510 / 100,
+    .pause_time = 1337,
+    .send_xon   = 0,
+};
+
+
+void configure_eth_port(uint8_t port_id)
+{
+    int ret;
+
+    rte_eth_dev_stop(port_id);
+
+    ret = rte_eth_dev_configure(port_id, 1, 1, &port_conf);
+    if (ret < 0)
+        rte_exit(EXIT_FAILURE, "Cannot configure port %u (error %d)\n",
+                               (unsigned) port_id, ret);
+
+    /* Initialize the port's RX queue */
+    ret = rte_eth_rx_queue_setup(port_id, 0, RX_DESC_PER_QUEUE,
+				rte_eth_dev_socket_id(port_id),
+				NULL,
+				mbuf_pool);
+    if (ret < 0)
+        rte_exit(EXIT_FAILURE, "Failed to setup RX queue on "
+                               "port %u (error %d)\n", (unsigned) port_id, ret);
+
+    /* Initialize the port's TX queue */
+    ret = rte_eth_tx_queue_setup(port_id, 0, TX_DESC_PER_QUEUE,
+				rte_eth_dev_socket_id(port_id),
+				NULL);
+    if (ret < 0)
+        rte_exit(EXIT_FAILURE, "Failed to setup TX queue on "
+                               "port %u (error %d)\n", (unsigned) port_id, ret);
+
+    /* Initialize the port's flow control */
+    ret = rte_eth_dev_flow_ctrl_set(port_id, &fc_conf);
+    if (ret < 0)
+        rte_exit(EXIT_FAILURE, "Failed to setup hardware flow control on "
+                               "port %u (error %d)\n", (unsigned) port_id, ret);
+
+    /* Start the port */
+    ret = rte_eth_dev_start(port_id);
+    if (ret < 0)
+        rte_exit(EXIT_FAILURE, "Failed to start port %u (error %d)\n",
+                               (unsigned) port_id, ret);
+
+    /* Put it in promiscuous mode */
+    rte_eth_promiscuous_enable(port_id);
+}
+
+void
+init_dpdk(void)
+{
+    if (rte_eth_dev_count() < 2)
+        rte_exit(EXIT_FAILURE, "Not enough ethernet port available\n");
+}
+
+void init_ring(int lcore_id, uint8_t port_id)
+{
+    struct rte_ring *ring;
+    char ring_name[RTE_RING_NAMESIZE];
+
+    snprintf(ring_name, RTE_RING_NAMESIZE,
+		"core%d_port%d", lcore_id, port_id);
+    ring = rte_ring_create(ring_name, RING_SIZE, rte_socket_id(),
+                           RING_F_SP_ENQ | RING_F_SC_DEQ);
+
+    if (ring == NULL)
+        rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
+
+    rte_ring_set_water_mark(ring, 80 * RING_SIZE / 100);
+
+    rings[lcore_id][port_id] = ring;
+}
+
+void
+pair_ports(void)
+{
+    uint8_t i, j;
+
+    /* Pair ports with their "closest neighbour" in the portmask */
+    for (i = 0; i < RTE_MAX_ETHPORTS; i++)
+        if (is_bit_set(i, portmask))
+            for (j = (uint8_t) (i + 1); j < RTE_MAX_ETHPORTS; j++)
+                if (is_bit_set(j, portmask)) {
+                    port_pairs[i] = j;
+                    port_pairs[j] = i;
+                    i = j;
+                    break;
+                }
+}
+
+void
+setup_shared_variables(void)
+{
+    const struct rte_memzone *qw_memzone;
+
+    qw_memzone = rte_memzone_reserve(QUOTA_WATERMARK_MEMZONE_NAME, 2 * sizeof(int),
+                                     rte_socket_id(), RTE_MEMZONE_2MB);
+    if (qw_memzone == NULL)
+        rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
+
+    quota = qw_memzone->addr;
+    low_watermark = (unsigned int *) qw_memzone->addr + sizeof(int);
+}