@@ -412,6 +412,11 @@ M: Keith Wiles <keith.wiles@intel.com>
F: drivers/net/tap/
F: doc/guides/nics/tap.rst
+KNI PMD
+M: Ferruh Yigit <ferruh.yigit@intel.com>
+F: drivers/net/kni/
+F: doc/guides/nics/kni.rst
+
Ring PMD
M: Bruce Richardson <bruce.richardson@intel.com>
F: drivers/net/ring/
@@ -581,6 +581,7 @@ CONFIG_RTE_PIPELINE_STATS_COLLECT=n
# Compile librte_kni
#
CONFIG_RTE_LIBRTE_KNI=n
+CONFIG_RTE_LIBRTE_PMD_KNI=n
CONFIG_RTE_KNI_KMOD=n
CONFIG_RTE_KNI_KMOD_ETHTOOL=n
CONFIG_RTE_KNI_PREEMPT_DEFAULT=y
@@ -39,6 +39,7 @@ CONFIG_RTE_EAL_IGB_UIO=y
CONFIG_RTE_EAL_VFIO=y
CONFIG_RTE_KNI_KMOD=y
CONFIG_RTE_LIBRTE_KNI=y
+CONFIG_RTE_LIBRTE_PMD_KNI=y
CONFIG_RTE_LIBRTE_VHOST=y
CONFIG_RTE_LIBRTE_PMD_VHOST=y
CONFIG_RTE_LIBRTE_PMD_AF_PACKET=y
new file mode 100644
@@ -0,0 +1,7 @@
+;
+; Supported features of the 'kni' network poll mode driver.
+;
+; Refer to default.ini for the full list of available PMD features.
+;
+[Features]
+Usage doc = Y
@@ -46,6 +46,7 @@ Network Interface Controller Drivers
i40e
ixgbe
intel_vf
+ kni
mlx4
mlx5
nfp
new file mode 100644
@@ -0,0 +1,197 @@
+.. BSD LICENSE
+ Copyright(c) 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.
+
+KNI Poll Mode Driver
+======================
+
+KNI PMD is wrapper to the :ref:`librte_kni <kni>` library.
+
+This PMD enables using KNI without having a KNI specific application,
+any forwarding application can use PMD interface for KNI.
+
+Sending packets to any DPDK controlled interface or sending to the
+Linux networking stack will be transparent to the DPDK application.
+
+To create a KNI device ``net_kni#`` device name should be used, and this
+will create ``kni#`` Linux virtual network interface.
+
+There is no physical device backend for the virtual KNI device.
+
+Packets sent to the KNI Linux interface will be received by the DPDK
+application, and DPDK application may forward packets to a physical NIC
+or to a virtual device (like another KNI interface or PCAP interface).
+
+To forward any traffic from physical NIC to the Linux networking stack,
+an application should control a physical port and create one virtual KNI port,
+and forward between two.
+
+Using this PMD requires KNI kernel module be inserted.
+
+
+Usage
+-----
+
+EAL ``--vdev`` argument can be used to create KNI device instance, like::
+
+ testpmd --vdev=net_kni0 --vdev=net_kn1 -- -i
+
+Above command will create ``kni0`` and ``kni1`` Linux network interfaces,
+those interfaces can be controlled by standard Linux tools.
+
+When testpmd forwarding starts, any packets sent to ``kni0`` interface
+forwarded to the ``kni1`` interface and vice versa.
+
+There is no hard limit on number of interfaces that can be created.
+
+
+Default interface configuration
+-------------------------------
+
+``librte_kni`` can create Linux network interfaces with different features,
+feature set controlled by a configuration struct, and KNI PMD uses a fixed
+configuration:
+
+ .. code-block:: console
+
+ Interface name: kni#
+ force bind kernel thread to a core : NO
+ mbuf size: MAX_PACKET_SZ
+
+KNI control path is not supported with the PMD, since there is no physical
+backend device by default.
+
+
+PMD arguments
+-------------
+
+``no_request_thread``, by default PMD creates a phtread for each KNI interface
+to handle Linux network interface control commands, like ``ifconfig kni0 up``
+
+With ``no_request_thread`` option, pthread is not created and control commands
+not handled by PMD.
+
+By default request thread is enabled. And this argument should not be used
+most of the time, unless this PMD used with customized DPDK application to handle
+requests itself.
+
+Argument usage::
+
+ testpmd --vdev "net_kni0,no_request_thread=1" -- -i
+
+
+PMD log messages
+----------------
+
+If KNI kernel module (rte_kni.ko) not inserted, following error log printed::
+
+ "KNI: KNI subsystem has not been initialized. Invoke rte_kni_init() first"
+
+
+PMD testing
+-----------
+
+It is possible to test PMD quickly using KNI kernel module loopback feature:
+
+* Insert KNI kernel module with loopback support:
+
+ .. code-block:: console
+
+ insmod build/kmod/rte_kni.ko lo_mode=lo_mode_fifo_skb
+
+* Start testpmd with no physical device but two KNI virtual devices:
+
+ .. code-block:: console
+
+ ./testpmd --vdev net_kni0 --vdev net_kni1 -- -i
+
+ .. code-block:: console
+
+ ...
+ Configuring Port 0 (socket 0)
+ KNI: pci: 00:00:00 c580:b8
+ Port 0: 1A:4A:5B:7C:A2:8C
+ Configuring Port 1 (socket 0)
+ KNI: pci: 00:00:00 600:b9
+ Port 1: AE:95:21:07:93:DD
+ Checking link statuses...
+ Port 0 Link Up - speed 10000 Mbps - full-duplex
+ Port 1 Link Up - speed 10000 Mbps - full-duplex
+ Done
+ testpmd>
+
+* Observe Linux interfaces
+
+ .. code-block:: console
+
+ $ ifconfig kni0 && ifconfig kni1
+ kni0: flags=4098<BROADCAST,MULTICAST> mtu 1500
+ ether ae:8e:79:8e:9b:c8 txqueuelen 1000 (Ethernet)
+ RX packets 0 bytes 0 (0.0 B)
+ RX errors 0 dropped 0 overruns 0 frame 0
+ TX packets 0 bytes 0 (0.0 B)
+ TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
+
+ kni1: flags=4098<BROADCAST,MULTICAST> mtu 1500
+ ether 9e:76:43:53:3e:9b txqueuelen 1000 (Ethernet)
+ RX packets 0 bytes 0 (0.0 B)
+ RX errors 0 dropped 0 overruns 0 frame 0
+ TX packets 0 bytes 0 (0.0 B)
+ TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
+
+
+* Start forwarding with tx_first:
+
+ .. code-block:: console
+
+ testpmd> start tx_first
+
+* Quit and check forwarding stats:
+
+ .. code-block:: console
+
+ testpmd> quit
+ Telling cores to stop...
+ Waiting for lcores to finish...
+
+ ---------------------- Forward statistics for port 0 ----------------------
+ RX-packets: 35637905 RX-dropped: 0 RX-total: 35637905
+ TX-packets: 35637947 TX-dropped: 0 TX-total: 35637947
+ ----------------------------------------------------------------------------
+
+ ---------------------- Forward statistics for port 1 ----------------------
+ RX-packets: 35637915 RX-dropped: 0 RX-total: 35637915
+ TX-packets: 35637937 TX-dropped: 0 TX-total: 35637937
+ ----------------------------------------------------------------------------
+
+ +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
+ RX-packets: 71275820 RX-dropped: 0 RX-total: 71275820
+ TX-packets: 71275884 TX-dropped: 0 TX-total: 71275884
+ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
@@ -58,6 +58,10 @@ DIRS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += virtio
DIRS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD) += vmxnet3
DIRS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += xenvirt
+ifeq ($(CONFIG_RTE_LIBRTE_KNI),y)
+DIRS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += kni
+endif
+
ifeq ($(CONFIG_RTE_LIBRTE_VHOST),y)
DIRS-$(CONFIG_RTE_LIBRTE_PMD_VHOST) += vhost
endif # $(CONFIG_RTE_LIBRTE_VHOST)
new file mode 100644
@@ -0,0 +1,64 @@
+# BSD LICENSE
+#
+# Copyright(c) 2017 Intel Corporation. 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 $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_kni.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+LDLIBS += -lpthread
+
+EXPORT_MAP := rte_pmd_kni_version.map
+
+LIBABIVER := 1
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += rte_eth_kni.c
+
+#
+# Export include files
+#
+SYMLINK-y-include +=
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += lib/librte_eal
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += lib/librte_ether
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += lib/librte_kni
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += lib/librte_kvargs
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += lib/librte_mempool
+
+include $(RTE_SDK)/mk/rte.lib.mk
new file mode 100644
@@ -0,0 +1,515 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 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.
+ */
+
+#include <fcntl.h>
+#include <pthread.h>
+#include <unistd.h>
+
+#include <rte_ethdev.h>
+#include <rte_kni.h>
+#include <rte_kvargs.h>
+#include <rte_malloc.h>
+#include <rte_vdev.h>
+
+/* Only single queue supported */
+#define KNI_MAX_QUEUE_PER_PORT 1
+
+#define MAX_PACKET_SZ 2048
+#define MAX_KNI_PORTS 8
+
+#define ETH_KNI_NO_REQUEST_THREAD_ARG "no_request_thread"
+static const char * const valid_arguments[] = {
+ ETH_KNI_NO_REQUEST_THREAD_ARG,
+ NULL
+};
+
+struct eth_kni_args {
+ int no_request_thread;
+};
+
+struct pmd_queue_stats {
+ uint64_t pkts;
+ uint64_t bytes;
+ uint64_t err_pkts;
+};
+
+struct pmd_queue {
+ struct pmd_internals *internals;
+ struct rte_mempool *mb_pool;
+
+ struct pmd_queue_stats rx;
+ struct pmd_queue_stats tx;
+};
+
+struct pmd_internals {
+ struct rte_kni *kni;
+ int is_kni_started;
+
+ pthread_t thread;
+ int stop_thread;
+ int no_request_thread;
+
+ struct ether_addr eth_addr;
+
+ struct pmd_queue rx_queues[KNI_MAX_QUEUE_PER_PORT];
+ struct pmd_queue tx_queues[KNI_MAX_QUEUE_PER_PORT];
+};
+
+static const struct rte_eth_link pmd_link = {
+ .link_speed = ETH_SPEED_NUM_10G,
+ .link_duplex = ETH_LINK_FULL_DUPLEX,
+ .link_status = ETH_LINK_DOWN,
+ .link_autoneg = ETH_LINK_SPEED_AUTONEG,
+};
+static int is_kni_initialized;
+
+static uint16_t
+eth_kni_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
+{
+ struct pmd_queue *kni_q = q;
+ struct rte_kni *kni = kni_q->internals->kni;
+ uint16_t nb_pkts;
+
+ nb_pkts = rte_kni_rx_burst(kni, bufs, nb_bufs);
+
+ kni_q->rx.pkts += nb_pkts;
+ kni_q->rx.err_pkts += nb_bufs - nb_pkts;
+
+ return nb_pkts;
+}
+
+static uint16_t
+eth_kni_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
+{
+ struct pmd_queue *kni_q = q;
+ struct rte_kni *kni = kni_q->internals->kni;
+ uint16_t nb_pkts;
+
+ nb_pkts = rte_kni_tx_burst(kni, bufs, nb_bufs);
+
+ kni_q->tx.pkts += nb_pkts;
+ kni_q->tx.err_pkts += nb_bufs - nb_pkts;
+
+ return nb_pkts;
+}
+
+static void *
+kni_handle_request(void *param)
+{
+ struct pmd_internals *internals = param;
+#define MS 1000
+
+ while (!internals->stop_thread) {
+ rte_kni_handle_request(internals->kni);
+ usleep(500 * MS);
+ }
+
+ return param;
+}
+
+static int
+eth_kni_start(struct rte_eth_dev *dev)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ uint16_t port_id = dev->data->port_id;
+ struct rte_mempool *mb_pool;
+ struct rte_kni_conf conf;
+ const char *name = dev->data->name + 4; /* remove net_ */
+
+ snprintf(conf.name, RTE_KNI_NAMESIZE, "%s", name);
+ conf.force_bind = 0;
+ conf.group_id = port_id;
+ conf.mbuf_size = MAX_PACKET_SZ;
+ mb_pool = internals->rx_queues[0].mb_pool;
+
+ internals->kni = rte_kni_alloc(mb_pool, &conf, NULL);
+ if (internals->kni == NULL) {
+ RTE_LOG(ERR, PMD,
+ "Fail to create kni interface for port: %d\n",
+ port_id);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+eth_kni_dev_start(struct rte_eth_dev *dev)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ int ret;
+
+ if (internals->is_kni_started == 0) {
+ ret = eth_kni_start(dev);
+ if (ret)
+ return -1;
+ internals->is_kni_started = 1;
+ }
+
+ if (internals->no_request_thread == 0) {
+ ret = pthread_create(&internals->thread, NULL,
+ kni_handle_request, internals);
+ if (ret) {
+ RTE_LOG(ERR, PMD,
+ "Fail to create kni request thread\n");
+ return -1;
+ }
+ }
+
+ dev->data->dev_link.link_status = 1;
+
+ return 0;
+}
+
+static void
+eth_kni_dev_stop(struct rte_eth_dev *dev)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ int ret;
+
+ if (internals->no_request_thread == 0) {
+ internals->stop_thread = 1;
+
+ ret = pthread_cancel(internals->thread);
+ if (ret)
+ RTE_LOG(ERR, PMD, "Can't cancel the thread\n");
+
+ ret = pthread_join(internals->thread, NULL);
+ if (ret)
+ RTE_LOG(ERR, PMD, "Can't join the thread\n");
+
+ internals->stop_thread = 0;
+ }
+
+ dev->data->dev_link.link_status = 0;
+}
+
+static int
+eth_kni_dev_configure(struct rte_eth_dev *dev __rte_unused)
+{
+ return 0;
+}
+
+static void
+eth_kni_dev_info(struct rte_eth_dev *dev __rte_unused,
+ struct rte_eth_dev_info *dev_info)
+{
+ dev_info->max_mac_addrs = 1;
+ dev_info->max_rx_pktlen = UINT32_MAX;
+ dev_info->max_rx_queues = KNI_MAX_QUEUE_PER_PORT;
+ dev_info->max_tx_queues = KNI_MAX_QUEUE_PER_PORT;
+ dev_info->min_rx_bufsize = 0;
+ dev_info->pci_dev = NULL;
+}
+
+static int
+eth_kni_rx_queue_setup(struct rte_eth_dev *dev,
+ uint16_t rx_queue_id,
+ uint16_t nb_rx_desc __rte_unused,
+ unsigned int socket_id __rte_unused,
+ const struct rte_eth_rxconf *rx_conf __rte_unused,
+ struct rte_mempool *mb_pool)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ struct pmd_queue *q;
+
+ q = &internals->rx_queues[rx_queue_id];
+ q->internals = internals;
+ q->mb_pool = mb_pool;
+
+ dev->data->rx_queues[rx_queue_id] = q;
+
+ return 0;
+}
+
+static int
+eth_kni_tx_queue_setup(struct rte_eth_dev *dev,
+ uint16_t tx_queue_id,
+ uint16_t nb_tx_desc __rte_unused,
+ unsigned int socket_id __rte_unused,
+ const struct rte_eth_txconf *tx_conf __rte_unused)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ struct pmd_queue *q;
+
+ q = &internals->tx_queues[tx_queue_id];
+ q->internals = internals;
+
+ dev->data->tx_queues[tx_queue_id] = q;
+
+ return 0;
+}
+
+static void
+eth_kni_queue_release(void *q __rte_unused)
+{
+}
+
+static int
+eth_kni_link_update(struct rte_eth_dev *dev __rte_unused,
+ int wait_to_complete __rte_unused)
+{
+ return 0;
+}
+
+static void
+eth_kni_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+{
+ unsigned long rx_packets_total = 0, rx_bytes_total = 0;
+ unsigned long tx_packets_total = 0, tx_bytes_total = 0;
+ struct rte_eth_dev_data *data = dev->data;
+ unsigned long tx_packets_err_total = 0;
+ unsigned int i, num_stats;
+ struct pmd_queue *q;
+
+ num_stats = RTE_MIN((unsigned int)RTE_ETHDEV_QUEUE_STAT_CNTRS,
+ data->nb_rx_queues);
+ for (i = 0; i < num_stats; i++) {
+ q = data->rx_queues[i];
+ stats->q_ipackets[i] = q->rx.pkts;
+ stats->q_ibytes[i] = q->rx.bytes;
+ rx_packets_total += stats->q_ipackets[i];
+ rx_bytes_total += stats->q_ibytes[i];
+ }
+
+ num_stats = RTE_MIN((unsigned int)RTE_ETHDEV_QUEUE_STAT_CNTRS,
+ data->nb_tx_queues);
+ for (i = 0; i < num_stats; i++) {
+ q = data->tx_queues[i];
+ stats->q_opackets[i] = q->tx.pkts;
+ stats->q_obytes[i] = q->tx.bytes;
+ stats->q_errors[i] = q->tx.err_pkts;
+ tx_packets_total += stats->q_opackets[i];
+ tx_bytes_total += stats->q_obytes[i];
+ tx_packets_err_total += stats->q_errors[i];
+ }
+
+ stats->ipackets = rx_packets_total;
+ stats->ibytes = rx_bytes_total;
+ stats->opackets = tx_packets_total;
+ stats->obytes = tx_bytes_total;
+ stats->oerrors = tx_packets_err_total;
+}
+
+static void
+eth_kni_stats_reset(struct rte_eth_dev *dev)
+{
+ struct rte_eth_dev_data *data = dev->data;
+ struct pmd_queue *q;
+ unsigned int i;
+
+ for (i = 0; i < data->nb_rx_queues; i++) {
+ q = data->rx_queues[i];
+ q->rx.pkts = 0;
+ q->rx.bytes = 0;
+ }
+ for (i = 0; i < data->nb_tx_queues; i++) {
+ q = data->tx_queues[i];
+ q->tx.pkts = 0;
+ q->tx.bytes = 0;
+ q->tx.err_pkts = 0;
+ }
+}
+
+static const struct eth_dev_ops eth_kni_ops = {
+ .dev_start = eth_kni_dev_start,
+ .dev_stop = eth_kni_dev_stop,
+ .dev_configure = eth_kni_dev_configure,
+ .dev_infos_get = eth_kni_dev_info,
+ .rx_queue_setup = eth_kni_rx_queue_setup,
+ .tx_queue_setup = eth_kni_tx_queue_setup,
+ .rx_queue_release = eth_kni_queue_release,
+ .tx_queue_release = eth_kni_queue_release,
+ .link_update = eth_kni_link_update,
+ .stats_get = eth_kni_stats_get,
+ .stats_reset = eth_kni_stats_reset,
+};
+
+static struct rte_vdev_driver eth_kni_drv;
+
+static struct rte_eth_dev *
+eth_kni_create(const char *name, struct eth_kni_args *args,
+ unsigned int numa_node)
+{
+ struct pmd_internals *internals = NULL;
+ struct rte_eth_dev_data *data;
+ struct rte_eth_dev *eth_dev;
+
+ RTE_LOG(INFO, PMD, "Creating kni ethdev on numa socket %u\n",
+ numa_node);
+
+ data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
+ if (data == NULL)
+ goto error;
+
+ internals = rte_zmalloc_socket(name, sizeof(*internals), 0, numa_node);
+ if (internals == NULL)
+ goto error;
+
+ /* reserve an ethdev entry */
+ eth_dev = rte_eth_dev_allocate(name);
+ if (eth_dev == NULL)
+ goto error;
+
+ data->dev_private = internals;
+ data->port_id = eth_dev->data->port_id;
+ memmove(data->name, eth_dev->data->name, sizeof(data->name));
+ data->nb_rx_queues = 1;
+ data->nb_tx_queues = 1;
+ data->dev_link = pmd_link;
+ data->mac_addrs = &internals->eth_addr;
+
+ eth_random_addr(internals->eth_addr.addr_bytes);
+
+ eth_dev->data = data;
+ eth_dev->dev_ops = ð_kni_ops;
+ eth_dev->driver = NULL;
+
+ data->dev_flags = RTE_ETH_DEV_DETACHABLE;
+ data->kdrv = RTE_KDRV_NONE;
+ data->drv_name = eth_kni_drv.driver.name;
+ data->numa_node = numa_node;
+
+ internals->no_request_thread = args->no_request_thread;
+
+ return eth_dev;
+
+error:
+ rte_free(data);
+ rte_free(internals);
+
+ return NULL;
+}
+
+static int
+kni_init(void)
+{
+ if (is_kni_initialized == 0)
+ rte_kni_init(MAX_KNI_PORTS);
+
+ is_kni_initialized++;
+
+ return 0;
+}
+
+static int
+eth_kni_kvargs_process(struct eth_kni_args *args, const char *params)
+{
+ struct rte_kvargs *kvlist;
+
+ kvlist = rte_kvargs_parse(params, valid_arguments);
+ if (kvlist == NULL)
+ return -1;
+
+ memset(args, 0, sizeof(struct eth_kni_args));
+
+ if (rte_kvargs_count(kvlist, ETH_KNI_NO_REQUEST_THREAD_ARG) == 1)
+ args->no_request_thread = 1;
+
+ rte_kvargs_free(kvlist);
+
+ return 0;
+}
+
+static int
+eth_kni_probe(const char *name, const char *params)
+{
+ struct rte_eth_dev *eth_dev;
+ struct eth_kni_args args;
+ int ret;
+
+ RTE_LOG(INFO, PMD, "Initializing eth_kni for %s\n", name);
+
+ ret = eth_kni_kvargs_process(&args, params);
+ if (ret < 0)
+ return ret;
+
+ ret = kni_init();
+ if (ret < 0)
+ return ret;
+
+ eth_dev = eth_kni_create(name, &args, rte_socket_id());
+ if (eth_dev == NULL)
+ goto kni_uninit;
+
+ eth_dev->rx_pkt_burst = eth_kni_rx;
+ eth_dev->tx_pkt_burst = eth_kni_tx;
+
+ return 0;
+
+kni_uninit:
+ is_kni_initialized--;
+ if (is_kni_initialized == 0)
+ rte_kni_close();
+ return -1;
+}
+
+static int
+eth_kni_remove(const char *name)
+{
+ struct rte_eth_dev *eth_dev;
+ struct pmd_internals *internals;
+
+ RTE_LOG(INFO, PMD, "Un-Initializing eth_kni for %s\n", name);
+
+ /* find the ethdev entry */
+ eth_dev = rte_eth_dev_allocated(name);
+ if (eth_dev == NULL)
+ return -1;
+
+ eth_kni_dev_stop(eth_dev);
+
+ if (eth_dev->data) {
+ internals = eth_dev->data->dev_private;
+ rte_kni_release(internals->kni);
+
+ rte_free(internals);
+ }
+ rte_free(eth_dev->data);
+
+ rte_eth_dev_release_port(eth_dev);
+
+ is_kni_initialized--;
+ if (is_kni_initialized == 0)
+ rte_kni_close();
+
+ return 0;
+}
+
+static struct rte_vdev_driver eth_kni_drv = {
+ .probe = eth_kni_probe,
+ .remove = eth_kni_remove,
+};
+
+RTE_PMD_REGISTER_VDEV(net_kni, eth_kni_drv);
+RTE_PMD_REGISTER_PARAM_STRING(net_kni, ETH_KNI_NO_REQUEST_THREAD_ARG "=<int>");
new file mode 100644
@@ -0,0 +1,4 @@
+DPDK_17.05 {
+
+ local: *;
+};
@@ -59,11 +59,6 @@ _LDLIBS-y += -L$(RTE_SDK_BIN)/lib
#
# Order is important: from higher level to lower level
#
-
-ifeq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),y)
-_LDLIBS-$(CONFIG_RTE_LIBRTE_KNI) += -lrte_kni
-endif
-
_LDLIBS-$(CONFIG_RTE_LIBRTE_PIPELINE) += -lrte_pipeline
_LDLIBS-$(CONFIG_RTE_LIBRTE_TABLE) += -lrte_table
_LDLIBS-$(CONFIG_RTE_LIBRTE_PORT) += -lrte_port
@@ -100,6 +95,10 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_EAL) += -lrte_eal
_LDLIBS-$(CONFIG_RTE_LIBRTE_CMDLINE) += -lrte_cmdline
_LDLIBS-$(CONFIG_RTE_LIBRTE_REORDER) += -lrte_reorder
+ifeq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),y)
+_LDLIBS-$(CONFIG_RTE_LIBRTE_KNI) += -lrte_kni
+endif
+
ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),n)
# plugins (link only if static libraries)
@@ -114,6 +113,9 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += -lrte_pmd_enic
_LDLIBS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += -lrte_pmd_fm10k
_LDLIBS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += -lrte_pmd_i40e
_LDLIBS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += -lrte_pmd_ixgbe
+ifeq ($(CONFIG_RTE_LIBRTE_KNI),y)
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_KNI) += -lrte_pmd_kni
+endif
_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += -lrte_pmd_mlx4 -libverbs
_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += -lrte_pmd_mlx5 -libverbs
_LDLIBS-$(CONFIG_RTE_LIBRTE_MPIPE_PMD) += -lrte_pmd_mpipe -lgxio