1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2015 Intel Corporation. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _VIRTIO_RXTX_H_ 35 #define _VIRTIO_RXTX_H_ 36 37 #define RTE_PMD_VIRTIO_RX_MAX_BURST 64 38 39 struct virtnet_stats { 40 uint64_t packets; 41 uint64_t bytes; 42 uint64_t errors; 43 uint64_t multicast; 44 uint64_t broadcast; 45 /* Size bins in array as RFC 2819, undersized [0], 64 [1], etc */ 46 uint64_t size_bins[8]; 47 }; 48 49 struct virtnet_rx { 50 struct virtqueue *vq; 51 /* dummy mbuf, for wraparound when processing RX ring. */ 52 struct rte_mbuf fake_mbuf; 53 uint64_t mbuf_initializer; /**< value to init mbufs. */ 54 struct rte_mempool *mpool; /**< mempool for mbuf allocation */ 55 56 uint16_t queue_id; /**< DPDK queue index. */ 57 uint16_t port_id; /**< Device port identifier. */ 58 59 /* Statistics */ 60 struct virtnet_stats stats; 61 62 const struct rte_memzone *mz; /**< mem zone to populate RX ring. */ 63 }; 64 65 struct virtnet_tx { 66 struct virtqueue *vq; 67 /**< memzone to populate hdr. */ 68 const struct rte_memzone *virtio_net_hdr_mz; 69 rte_iova_t virtio_net_hdr_mem; /**< hdr for each xmit packet */ 70 71 uint16_t queue_id; /**< DPDK queue index. */ 72 uint16_t port_id; /**< Device port identifier. */ 73 74 /* Statistics */ 75 struct virtnet_stats stats; 76 77 const struct rte_memzone *mz; /**< mem zone to populate TX ring. */ 78 }; 79 80 struct virtnet_ctl { 81 struct virtqueue *vq; 82 /**< memzone to populate hdr. */ 83 const struct rte_memzone *virtio_net_hdr_mz; 84 rte_iova_t virtio_net_hdr_mem; /**< hdr for each xmit packet */ 85 uint16_t port_id; /**< Device port identifier. */ 86 const struct rte_memzone *mz; /**< mem zone to populate CTL ring. */ 87 }; 88 89 int virtio_rxq_vec_setup(struct virtnet_rx *rxvq); 90 91 int virtqueue_enqueue_recv_refill_simple(struct virtqueue *vq, 92 struct rte_mbuf *m); 93 94 #endif /* _VIRTIO_RXTX_H_ */ 95