X-Git-Url: https://gerrit.fd.io/r/gitweb?p=deb_dpdk.git;a=blobdiff_plain;f=drivers%2Fnet%2Ftap%2Frte_eth_tap.h;fp=drivers%2Fnet%2Ftap%2Frte_eth_tap.h;h=ad497b3d1015076aa6c82fd82eb2f5fbcc153224;hp=0000000000000000000000000000000000000000;hb=7595afa4d30097c1177b69257118d8ad89a539be;hpb=ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6

diff --git a/drivers/net/tap/rte_eth_tap.h b/drivers/net/tap/rte_eth_tap.h
new file mode 100644
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--- /dev/null
+++ b/drivers/net/tap/rte_eth_tap.h
@@ -0,0 +1,100 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright 2017 6WIND S.A.
+ *   Copyright 2017 Mellanox.
+ *
+ *   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 6WIND S.A. 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 _RTE_ETH_TAP_H_
+#define _RTE_ETH_TAP_H_
+
+#include <sys/queue.h>
+#include <sys/uio.h>
+#include <inttypes.h>
+
+#include <linux/if_tun.h>
+
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+
+#ifdef IFF_MULTI_QUEUE
+#define RTE_PMD_TAP_MAX_QUEUES	16
+#else
+#define RTE_PMD_TAP_MAX_QUEUES	1
+#endif
+
+struct pkt_stats {
+	uint64_t opackets;              /* Number of output packets */
+	uint64_t ipackets;              /* Number of input packets */
+	uint64_t obytes;                /* Number of bytes on output */
+	uint64_t ibytes;                /* Number of bytes on input */
+	uint64_t errs;                  /* Number of TX error packets */
+	uint64_t ierrors;               /* Number of RX error packets */
+	uint64_t rx_nombuf;             /* Nb of RX mbuf alloc failures */
+};
+
+struct rx_queue {
+	struct rte_mempool *mp;         /* Mempool for RX packets */
+	uint32_t trigger_seen;          /* Last seen Rx trigger value */
+	uint16_t in_port;               /* Port ID */
+	int fd;
+	struct pkt_stats stats;         /* Stats for this RX queue */
+	uint16_t nb_rx_desc;            /* max number of mbufs available */
+	struct rte_eth_rxmode *rxmode;  /* RX features */
+	struct rte_mbuf *pool;          /* mbufs pool for this queue */
+	struct iovec (*iovecs)[];       /* descriptors for this queue */
+	struct tun_pi pi;               /* packet info for iovecs */
+};
+
+struct tx_queue {
+	int fd;
+	uint16_t *mtu;                  /* Pointer to MTU from dev_data */
+	struct pkt_stats stats;         /* Stats for this TX queue */
+};
+
+struct pmd_internals {
+	char remote_iface[RTE_ETH_NAME_MAX_LEN]; /* Remote netdevice name */
+	char name[RTE_ETH_NAME_MAX_LEN];  /* Internal Tap device name */
+	uint16_t nb_queues;               /* Number of queues supported */
+	struct ether_addr eth_addr;       /* Mac address of the device port */
+	int remote_if_index;              /* remote netdevice IF_INDEX */
+	int if_index;                     /* IF_INDEX for the port */
+	int ioctl_sock;                   /* socket for ioctl calls */
+	int nlsk_fd;                      /* Netlink socket fd */
+	int flower_support;               /* 1 if kernel supports, else 0 */
+	int flower_vlan_support;          /* 1 if kernel supports, else 0 */
+	LIST_HEAD(tap_flows, rte_flow) flows;        /* rte_flow rules */
+	/* implicit rte_flow rules set when a remote device is active */
+	LIST_HEAD(tap_implicit_flows, rte_flow) implicit_flows;
+	struct rx_queue rxq[RTE_PMD_TAP_MAX_QUEUES]; /* List of RX queues */
+	struct tx_queue txq[RTE_PMD_TAP_MAX_QUEUES]; /* List of TX queues */
+	struct rte_intr_handle intr_handle;          /* LSC interrupt handle. */
+};
+
+#endif /* _RTE_ETH_TAP_H_ */