Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 121 insertions, 0 deletions

diff --git a/src/seastar/dpdk/examples/vhost/main.h b/src/seastar/dpdk/examples/vhost/main.h
new file mode 100644
index 00000000..9a2aca37
--- /dev/null
+++ b/src/seastar/dpdk/examples/vhost/main.h
@@ -0,0 +1,121 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2017 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.
+ */
+
+#ifndef _MAIN_H_
+#define _MAIN_H_
+
+#include <sys/queue.h>
+
+#include <rte_ether.h>
+
+/* Macros for printing using RTE_LOG */
+#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
+#define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER2
+#define RTE_LOGTYPE_VHOST_PORT   RTE_LOGTYPE_USER3
+
+enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM};
+
+#define MAX_PKT_BURST 32		/* Max burst size for RX/TX */
+
+struct device_statistics {
+	uint64_t	tx;
+	uint64_t	tx_total;
+	rte_atomic64_t	rx_atomic;
+	rte_atomic64_t	rx_total_atomic;
+};
+
+struct vhost_queue {
+	struct rte_vhost_vring	vr;
+	uint16_t		last_avail_idx;
+	uint16_t		last_used_idx;
+};
+
+struct vhost_dev {
+	/**< Number of memory regions for gpa to hpa translation. */
+	uint32_t nregions_hpa;
+	/**< Device MAC address (Obtained on first TX packet). */
+	struct ether_addr mac_address;
+	/**< RX VMDQ queue number. */
+	uint16_t vmdq_rx_q;
+	/**< Vlan tag assigned to the pool */
+	uint32_t vlan_tag;
+	/**< Data core that the device is added to. */
+	uint16_t coreid;
+	/**< A device is set as ready if the MAC address has been set. */
+	volatile uint8_t ready;
+	/**< Device is marked for removal from the data core. */
+	volatile uint8_t remove;
+
+	int vid;
+	uint64_t features;
+	size_t hdr_len;
+	uint16_t nr_vrings;
+	struct rte_vhost_memory *mem;
+	struct device_statistics stats;
+	TAILQ_ENTRY(vhost_dev) global_vdev_entry;
+	TAILQ_ENTRY(vhost_dev) lcore_vdev_entry;
+
+#define MAX_QUEUE_PAIRS	4
+	struct vhost_queue queues[MAX_QUEUE_PAIRS * 2];
+} __rte_cache_aligned;
+
+TAILQ_HEAD(vhost_dev_tailq_list, vhost_dev);
+
+
+#define REQUEST_DEV_REMOVAL	1
+#define ACK_DEV_REMOVAL		0
+
+/*
+ * Structure containing data core specific information.
+ */
+struct lcore_info {
+	uint32_t		device_num;
+
+	/* Flag to synchronize device removal. */
+	volatile uint8_t	dev_removal_flag;
+
+	struct vhost_dev_tailq_list vdev_list;
+};
+
+/* we implement non-extra virtio net features */
+#define VIRTIO_NET_FEATURES	0
+
+void vs_vhost_net_setup(struct vhost_dev *dev);
+void vs_vhost_net_remove(struct vhost_dev *dev);
+uint16_t vs_enqueue_pkts(struct vhost_dev *dev, uint16_t queue_id,
+			 struct rte_mbuf **pkts, uint32_t count);
+
+uint16_t vs_dequeue_pkts(struct vhost_dev *dev, uint16_t queue_id,
+			 struct rte_mempool *mbuf_pool,
+			 struct rte_mbuf **pkts, uint16_t count);
+#endif /* _MAIN_H_ */