examples/tep_term: initialize VXLAN sample
This patch creates the virtio devices management mechanism. These functions are from the vHost example, which include: - virtio device creation. - virtio device destroying. - virtio device maintenance. Signed-off-by: Jijiang Liu <jijiang.liu@intel.com> [Thomas: remove unused function validate_nb_devices()] [Thomas: add maintainers section]
This commit is contained in:
parent
aa61307afc
commit
a50245ede7
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@ -482,6 +482,9 @@ M: John McNamara <john.mcnamara@intel.com>
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F: examples/skeleton/
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F: doc/guides/sample_app_ug/skeleton.rst
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M: Jijiang Liu <jijiang.liu@intel.com>
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F: examples/tep_termination/
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F: examples/vmdq/
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F: examples/vmdq_dcb/
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F: doc/guides/sample_app_ug/vmdq_dcb_forwarding.rst
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@ -67,6 +67,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_SCHED) += qos_sched
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DIRS-y += quota_watermark
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DIRS-$(CONFIG_RTE_ETHDEV_RXTX_CALLBACKS) += rxtx_callbacks
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DIRS-y += skeleton
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DIRS-y += tep_termination
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DIRS-$(CONFIG_RTE_LIBRTE_TIMER) += timer
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DIRS-$(CONFIG_RTE_LIBRTE_VHOST) += vhost
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DIRS-$(CONFIG_RTE_LIBRTE_XEN_DOM0) += vhost_xen
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55
examples/tep_termination/Makefile
Normal file
55
examples/tep_termination/Makefile
Normal file
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@ -0,0 +1,55 @@
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# BSD LICENSE
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#
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# Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Intel Corporation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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ifeq ($(RTE_SDK),)
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$(error "Please define RTE_SDK environment variable")
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endif
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# Default target, can be overridden by command line or environment
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RTE_TARGET ?= x86_64-native-linuxapp-gcc
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include $(RTE_SDK)/mk/rte.vars.mk
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ifneq ($(CONFIG_RTE_EXEC_ENV),"linuxapp")
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$(error This application can only operate in a linuxapp environment, \
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please change the definition of the RTE_TARGET environment variable)
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endif
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# binary name
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APP = tep_termination
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# all source are stored in SRCS-y
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SRCS-y := main.c
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CFLAGS += -O3
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CFLAGS += $(WERROR_FLAGS)
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include $(RTE_SDK)/mk/rte.extapp.mk
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1120
examples/tep_termination/main.c
Normal file
1120
examples/tep_termination/main.c
Normal file
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@ -0,0 +1,1120 @@
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/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arpa/inet.h>
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#include <getopt.h>
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include <linux/virtio_net.h>
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#include <linux/virtio_ring.h>
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#include <signal.h>
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#include <stdint.h>
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#include <sys/eventfd.h>
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#include <sys/param.h>
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#include <unistd.h>
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#include <rte_atomic.h>
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#include <rte_cycles.h>
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#include <rte_ethdev.h>
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#include <rte_log.h>
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#include <rte_string_fns.h>
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#include <rte_malloc.h>
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#include <rte_virtio_net.h>
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#include "main.h"
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/* the maximum number of external ports supported */
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#define MAX_SUP_PORTS 1
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/**
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* Calculate the number of buffers needed per port
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*/
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#define NUM_MBUFS_PER_PORT ((MAX_QUEUES * RTE_TEST_RX_DESC_DEFAULT) +\
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(nb_switching_cores * MAX_PKT_BURST) +\
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(nb_switching_cores * \
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RTE_TEST_TX_DESC_DEFAULT) +\
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(nb_switching_cores * MBUF_CACHE_SIZE))
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#define MBUF_CACHE_SIZE 128
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#define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
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#define MAX_PKT_BURST 32 /* Max burst size for RX/TX */
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#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
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/* Defines how long we wait between retries on RX */
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#define BURST_RX_WAIT_US 15
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#define BURST_RX_RETRIES 4 /* Number of retries on RX. */
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#define JUMBO_FRAME_MAX_SIZE 0x2600
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/* State of virtio device. */
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#define DEVICE_MAC_LEARNING 0
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#define DEVICE_RX 1
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#define DEVICE_SAFE_REMOVE 2
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/* Config_core_flag status definitions. */
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#define REQUEST_DEV_REMOVAL 1
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#define ACK_DEV_REMOVAL 0
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/* Configurable number of RX/TX ring descriptors */
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#define RTE_TEST_RX_DESC_DEFAULT 1024
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#define RTE_TEST_TX_DESC_DEFAULT 512
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/* Get first 4 bytes in mbuf headroom. */
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#define MBUF_HEADROOM_UINT32(mbuf) (*(uint32_t *)((uint8_t *)(mbuf) \
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+ sizeof(struct rte_mbuf)))
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#define INVALID_PORT_ID 0xFF
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/* Size of buffers used for snprintfs. */
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#define MAX_PRINT_BUFF 6072
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/* Maximum character device basename size. */
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#define MAX_BASENAME_SZ 20
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/* Maximum long option length for option parsing. */
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#define MAX_LONG_OPT_SZ 64
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/* Used to compare MAC addresses. */
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#define MAC_ADDR_CMP 0xFFFFFFFFFFFFULL
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#define CMD_LINE_OPT_NB_DEVICES "nb-devices"
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#define CMD_LINE_OPT_RX_RETRY "rx-retry"
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#define CMD_LINE_OPT_RX_RETRY_DELAY "rx-retry-delay"
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#define CMD_LINE_OPT_RX_RETRY_NUM "rx-retry-num"
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#define CMD_LINE_OPT_STATS "stats"
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#define CMD_LINE_OPT_DEV_BASENAME "dev-basename"
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/* mask of enabled ports */
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static uint32_t enabled_port_mask;
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/*Number of switching cores enabled*/
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static uint32_t nb_switching_cores;
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/* number of devices/queues to support*/
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uint32_t nb_devices;
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/* max ring descriptor, ixgbe, i40e, e1000 all are 4096. */
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#define MAX_RING_DESC 4096
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struct vpool {
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struct rte_mempool *pool;
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struct rte_ring *ring;
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uint32_t buf_size;
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} vpool_array[MAX_QUEUES+MAX_QUEUES];
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/* Enable stats. */
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uint32_t enable_stats = 0;
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/* Enable retries on RX. */
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static uint32_t enable_retry = 1;
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/* Specify timeout (in useconds) between retries on RX. */
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static uint32_t burst_rx_delay_time = BURST_RX_WAIT_US;
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/* Specify the number of retries on RX. */
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static uint32_t burst_rx_retry_num = BURST_RX_RETRIES;
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/* Character device basename. Can be set by user. */
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static char dev_basename[MAX_BASENAME_SZ] = "vhost-net";
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static unsigned lcore_ids[RTE_MAX_LCORE];
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uint8_t ports[RTE_MAX_ETHPORTS];
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static unsigned nb_ports; /**< The number of ports specified in command line */
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/* ethernet addresses of ports */
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struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
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/* heads for the main used and free linked lists for the data path. */
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static struct virtio_net_data_ll *ll_root_used;
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static struct virtio_net_data_ll *ll_root_free;
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/**
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* Array of data core structures containing information on
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* individual core linked lists.
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*/
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static struct lcore_info lcore_info[RTE_MAX_LCORE];
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/* Used for queueing bursts of TX packets. */
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struct mbuf_table {
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unsigned len;
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unsigned txq_id;
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struct rte_mbuf *m_table[MAX_PKT_BURST];
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};
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/* TX queue for each data core. */
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struct mbuf_table lcore_tx_queue[RTE_MAX_LCORE];
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struct device_statistics dev_statistics[MAX_DEVICES];
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/**
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* Set character device basename.
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*/
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static int
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us_vhost_parse_basename(const char *q_arg)
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{
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/* parse number string */
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if (strlen(q_arg) >= MAX_BASENAME_SZ)
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return -1;
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else
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snprintf((char *)&dev_basename, MAX_BASENAME_SZ, "%s", q_arg);
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return 0;
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}
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/**
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* Parse the portmask provided at run time.
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*/
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static int
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parse_portmask(const char *portmask)
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{
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char *end = NULL;
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unsigned long pm;
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/* parse hexadecimal string */
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pm = strtoul(portmask, &end, 16);
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if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
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return -1;
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if (pm == 0)
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return -1;
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return pm;
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}
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/**
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* Parse num options at run time.
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*/
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static int
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parse_num_opt(const char *q_arg, uint32_t max_valid_value)
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{
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char *end = NULL;
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unsigned long num;
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/* parse unsigned int string */
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num = strtoul(q_arg, &end, 10);
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if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
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return -1;
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if (num > max_valid_value)
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return -1;
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return num;
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}
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/**
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* Display usage
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*/
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static void
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tep_termination_usage(const char *prgname)
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{
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RTE_LOG(INFO, VHOST_CONFIG, "%s [EAL options] -- -p PORTMASK\n"
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" --nb-devices[1-64]: The number of virtIO device\n"
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" -p PORTMASK: Set mask for ports to be used by application\n"
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" --rx-retry [0|1]: disable/enable(default) retries on rx."
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" Enable retry if destintation queue is full\n"
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" --rx-retry-delay [0-N]: timeout(in usecond) between retries on RX."
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" This makes effect only if retries on rx enabled\n"
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" --rx-retry-num [0-N]: the number of retries on rx."
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" This makes effect only if retries on rx enabled\n"
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" --stats [0-N]: 0: Disable stats, N: Time in seconds to print stats\n"
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" --dev-basename: The basename to be used for the character device.\n",
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prgname);
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}
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/**
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* Parse the arguments given in the command line of the application.
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*/
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static int
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tep_termination_parse_args(int argc, char **argv)
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{
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int opt, ret;
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int option_index;
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unsigned i;
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const char *prgname = argv[0];
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static struct option long_option[] = {
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{CMD_LINE_OPT_NB_DEVICES, required_argument, NULL, 0},
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{CMD_LINE_OPT_RX_RETRY, required_argument, NULL, 0},
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{CMD_LINE_OPT_RX_RETRY_DELAY, required_argument, NULL, 0},
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{CMD_LINE_OPT_RX_RETRY_NUM, required_argument, NULL, 0},
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{CMD_LINE_OPT_STATS, required_argument, NULL, 0},
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{CMD_LINE_OPT_DEV_BASENAME, required_argument, NULL, 0},
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{NULL, 0, 0, 0},
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};
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/* Parse command line */
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while ((opt = getopt_long(argc, argv, "p:",
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long_option, &option_index)) != EOF) {
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switch (opt) {
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/* Portmask */
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case 'p':
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enabled_port_mask = parse_portmask(optarg);
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if (enabled_port_mask == 0) {
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RTE_LOG(INFO, VHOST_CONFIG,
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"Invalid portmask\n");
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tep_termination_usage(prgname);
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return -1;
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}
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break;
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case 0:
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if (!strncmp(long_option[option_index].name,
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CMD_LINE_OPT_NB_DEVICES,
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sizeof(CMD_LINE_OPT_NB_DEVICES))) {
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ret = parse_num_opt(optarg, MAX_DEVICES);
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if (ret == -1) {
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RTE_LOG(INFO, VHOST_CONFIG,
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"Invalid argument for nb-devices [0-%d]\n",
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MAX_DEVICES);
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tep_termination_usage(prgname);
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return -1;
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} else
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nb_devices = ret;
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}
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/* Enable/disable retries on RX. */
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if (!strncmp(long_option[option_index].name,
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CMD_LINE_OPT_RX_RETRY,
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sizeof(CMD_LINE_OPT_RX_RETRY))) {
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ret = parse_num_opt(optarg, 1);
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if (ret == -1) {
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RTE_LOG(INFO, VHOST_CONFIG,
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"Invalid argument for rx-retry [0|1]\n");
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tep_termination_usage(prgname);
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return -1;
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} else {
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enable_retry = ret;
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}
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}
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/* Specify the retries delay time (in useconds) on RX.*/
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if (!strncmp(long_option[option_index].name,
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CMD_LINE_OPT_RX_RETRY_DELAY,
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sizeof(CMD_LINE_OPT_RX_RETRY_DELAY))) {
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ret = parse_num_opt(optarg, INT32_MAX);
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if (ret == -1) {
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RTE_LOG(INFO, VHOST_CONFIG,
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"Invalid argument for rx-retry-delay [0-N]\n");
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tep_termination_usage(prgname);
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return -1;
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} else {
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burst_rx_delay_time = ret;
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}
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}
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/* Specify the retries number on RX. */
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if (!strncmp(long_option[option_index].name,
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CMD_LINE_OPT_RX_RETRY_NUM,
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sizeof(CMD_LINE_OPT_RX_RETRY_NUM))) {
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ret = parse_num_opt(optarg, INT32_MAX);
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if (ret == -1) {
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RTE_LOG(INFO, VHOST_CONFIG,
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"Invalid argument for rx-retry-num [0-N]\n");
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tep_termination_usage(prgname);
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return -1;
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} else {
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burst_rx_retry_num = ret;
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}
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}
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|
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/* Enable/disable stats. */
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if (!strncmp(long_option[option_index].name,
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CMD_LINE_OPT_STATS,
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sizeof(CMD_LINE_OPT_STATS))) {
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ret = parse_num_opt(optarg, INT32_MAX);
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if (ret == -1) {
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RTE_LOG(INFO, VHOST_CONFIG,
|
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"Invalid argument for stats [0..N]\n");
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tep_termination_usage(prgname);
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return -1;
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} else {
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enable_stats = ret;
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}
|
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}
|
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/* Set character device basename. */
|
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if (!strncmp(long_option[option_index].name,
|
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CMD_LINE_OPT_DEV_BASENAME,
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sizeof(CMD_LINE_OPT_DEV_BASENAME))) {
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if (us_vhost_parse_basename(optarg) == -1) {
|
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RTE_LOG(INFO, VHOST_CONFIG,
|
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"Invalid argument for character "
|
||||
"device basename (Max %d characters)\n",
|
||||
MAX_BASENAME_SZ);
|
||||
tep_termination_usage(prgname);
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return -1;
|
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}
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
/* Invalid option - print options. */
|
||||
default:
|
||||
tep_termination_usage(prgname);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
|
||||
if (enabled_port_mask & (1 << i))
|
||||
ports[nb_ports++] = (uint8_t)i;
|
||||
}
|
||||
|
||||
if ((nb_ports == 0) || (nb_ports > MAX_SUP_PORTS)) {
|
||||
RTE_LOG(INFO, VHOST_PORT, "Current enabled port number is %u,"
|
||||
"but only %u port can be enabled\n", nb_ports,
|
||||
MAX_SUP_PORTS);
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Update the global var NB_PORTS and array PORTS
|
||||
* according to system ports number and return valid ports number
|
||||
*/
|
||||
static unsigned
|
||||
check_ports_num(unsigned max_nb_ports)
|
||||
{
|
||||
unsigned valid_nb_ports = nb_ports;
|
||||
unsigned portid;
|
||||
|
||||
if (nb_ports > max_nb_ports) {
|
||||
RTE_LOG(INFO, VHOST_PORT, "\nSpecified port number(%u) "
|
||||
" exceeds total system port number(%u)\n",
|
||||
nb_ports, max_nb_ports);
|
||||
nb_ports = max_nb_ports;
|
||||
}
|
||||
|
||||
for (portid = 0; portid < nb_ports; portid++) {
|
||||
if (ports[portid] >= max_nb_ports) {
|
||||
RTE_LOG(INFO, VHOST_PORT,
|
||||
"\nSpecified port ID(%u) exceeds max "
|
||||
" system port ID(%u)\n",
|
||||
ports[portid], (max_nb_ports - 1));
|
||||
ports[portid] = INVALID_PORT_ID;
|
||||
valid_nb_ports--;
|
||||
}
|
||||
}
|
||||
return valid_nb_ports;
|
||||
}
|
||||
|
||||
/**
|
||||
* This function routes the TX packet to the correct interface. This may be a local device
|
||||
* or the physical port.
|
||||
*/
|
||||
static inline void __attribute__((always_inline))
|
||||
virtio_tx_route(struct vhost_dev *vdev, struct rte_mbuf *m)
|
||||
{
|
||||
struct mbuf_table *tx_q;
|
||||
struct rte_mbuf **m_table;
|
||||
unsigned len, ret = 0;
|
||||
const uint16_t lcore_id = rte_lcore_id();
|
||||
struct virtio_net *dev = vdev->dev;
|
||||
|
||||
LOG_DEBUG(VHOST_DATA, "(%"PRIu64") TX: MAC address is external\n",
|
||||
dev->device_fh);
|
||||
|
||||
/* Add packet to the port tx queue */
|
||||
tx_q = &lcore_tx_queue[lcore_id];
|
||||
len = tx_q->len;
|
||||
|
||||
tx_q->m_table[len] = m;
|
||||
len++;
|
||||
if (enable_stats) {
|
||||
dev_statistics[dev->device_fh].tx_total++;
|
||||
dev_statistics[dev->device_fh].tx++;
|
||||
}
|
||||
|
||||
if (unlikely(len == MAX_PKT_BURST)) {
|
||||
m_table = (struct rte_mbuf **)tx_q->m_table;
|
||||
/* Free any buffers not handled by TX and update
|
||||
* the port stats.
|
||||
*/
|
||||
if (unlikely(ret < len)) {
|
||||
do {
|
||||
rte_pktmbuf_free(m_table[ret]);
|
||||
} while (++ret < len);
|
||||
}
|
||||
|
||||
len = 0;
|
||||
}
|
||||
|
||||
tx_q->len = len;
|
||||
return;
|
||||
}
|
||||
|
||||
/**
|
||||
* This function is called by each data core. It handles all
|
||||
* RX/TX registered with the core. For TX the specific lcore
|
||||
* linked list is used. For RX, MAC addresses are compared
|
||||
* with all devices in the main linked list.
|
||||
*/
|
||||
static int
|
||||
switch_worker(__rte_unused void *arg)
|
||||
{
|
||||
struct rte_mempool *mbuf_pool = arg;
|
||||
struct virtio_net *dev = NULL;
|
||||
struct vhost_dev *vdev = NULL;
|
||||
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
|
||||
struct virtio_net_data_ll *dev_ll;
|
||||
struct mbuf_table *tx_q;
|
||||
volatile struct lcore_ll_info *lcore_ll;
|
||||
const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
|
||||
/ US_PER_S * BURST_TX_DRAIN_US;
|
||||
uint64_t prev_tsc, diff_tsc, cur_tsc, ret_count = 0;
|
||||
unsigned i, ret = 0;
|
||||
const uint16_t lcore_id = rte_lcore_id();
|
||||
const uint16_t num_cores = (uint16_t)rte_lcore_count();
|
||||
uint16_t rx_count = 0;
|
||||
uint16_t tx_count;
|
||||
uint32_t retry = 0;
|
||||
|
||||
RTE_LOG(INFO, VHOST_DATA, "Procesing on Core %u started\n", lcore_id);
|
||||
lcore_ll = lcore_info[lcore_id].lcore_ll;
|
||||
prev_tsc = 0;
|
||||
|
||||
tx_q = &lcore_tx_queue[lcore_id];
|
||||
for (i = 0; i < num_cores; i++) {
|
||||
if (lcore_ids[i] == lcore_id) {
|
||||
tx_q->txq_id = i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
while (1) {
|
||||
cur_tsc = rte_rdtsc();
|
||||
/*
|
||||
* TX burst queue drain
|
||||
*/
|
||||
diff_tsc = cur_tsc - prev_tsc;
|
||||
if (unlikely(diff_tsc > drain_tsc)) {
|
||||
|
||||
if (tx_q->len) {
|
||||
LOG_DEBUG(VHOST_DATA, "TX queue drained after "
|
||||
"timeout with burst size %u\n",
|
||||
tx_q->len);
|
||||
if (unlikely(ret < tx_q->len)) {
|
||||
do {
|
||||
rte_pktmbuf_free(tx_q->m_table[ret]);
|
||||
} while (++ret < tx_q->len);
|
||||
}
|
||||
|
||||
tx_q->len = 0;
|
||||
}
|
||||
|
||||
prev_tsc = cur_tsc;
|
||||
|
||||
}
|
||||
|
||||
rte_prefetch0(lcore_ll->ll_root_used);
|
||||
|
||||
/**
|
||||
* Inform the configuration core that we have exited
|
||||
* the linked list and that no devices are
|
||||
* in use if requested.
|
||||
*/
|
||||
if (lcore_ll->dev_removal_flag == REQUEST_DEV_REMOVAL)
|
||||
lcore_ll->dev_removal_flag = ACK_DEV_REMOVAL;
|
||||
|
||||
/*
|
||||
* Process devices
|
||||
*/
|
||||
dev_ll = lcore_ll->ll_root_used;
|
||||
|
||||
while (dev_ll != NULL) {
|
||||
vdev = dev_ll->vdev;
|
||||
dev = vdev->dev;
|
||||
|
||||
if (unlikely(vdev->remove)) {
|
||||
dev_ll = dev_ll->next;
|
||||
vdev->ready = DEVICE_SAFE_REMOVE;
|
||||
continue;
|
||||
}
|
||||
if (likely(vdev->ready == DEVICE_RX)) {
|
||||
/* Handle guest RX */
|
||||
rx_count = rte_eth_rx_burst(ports[0],
|
||||
vdev->rx_q, pkts_burst, MAX_PKT_BURST);
|
||||
|
||||
if (rx_count) {
|
||||
/*
|
||||
* Retry is enabled and the queue is
|
||||
* full then we wait and retry to
|
||||
* avoid packet loss. Here MAX_PKT_BURST
|
||||
* must be less than virtio queue size
|
||||
*/
|
||||
if (enable_retry && unlikely(rx_count >
|
||||
rte_vring_available_entries(dev, VIRTIO_RXQ))) {
|
||||
for (retry = 0; retry < burst_rx_retry_num;
|
||||
retry++) {
|
||||
rte_delay_us(burst_rx_delay_time);
|
||||
if (rx_count <= rte_vring_available_entries(dev, VIRTIO_RXQ))
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (enable_stats) {
|
||||
rte_atomic64_add(
|
||||
&dev_statistics[dev->device_fh].rx_total_atomic,
|
||||
rx_count);
|
||||
rte_atomic64_add(
|
||||
&dev_statistics[dev->device_fh].rx_atomic, ret_count);
|
||||
}
|
||||
while (likely(rx_count)) {
|
||||
rx_count--;
|
||||
rte_pktmbuf_free(pkts_burst[rx_count]);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
if (likely(!vdev->remove)) {
|
||||
/* Handle guest TX*/
|
||||
tx_count = rte_vhost_dequeue_burst(dev,
|
||||
VIRTIO_TXQ, mbuf_pool,
|
||||
pkts_burst, MAX_PKT_BURST);
|
||||
/* If this is the first received packet we need to learn the MAC */
|
||||
if (unlikely(vdev->ready == DEVICE_MAC_LEARNING) && tx_count) {
|
||||
if (vdev->remove) {
|
||||
while (tx_count)
|
||||
rte_pktmbuf_free(pkts_burst[--tx_count]);
|
||||
}
|
||||
}
|
||||
while (tx_count)
|
||||
virtio_tx_route(vdev, pkts_burst[--tx_count]);
|
||||
}
|
||||
|
||||
/* move to the next device in the list */
|
||||
dev_ll = dev_ll->next;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Add an entry to a used linked list. A free entry must first be found
|
||||
* in the free linked list using get_data_ll_free_entry();
|
||||
*/
|
||||
static void
|
||||
add_data_ll_entry(struct virtio_net_data_ll **ll_root_addr,
|
||||
struct virtio_net_data_ll *ll_dev)
|
||||
{
|
||||
struct virtio_net_data_ll *ll = *ll_root_addr;
|
||||
|
||||
/* Set next as NULL and use a compiler barrier to avoid reordering. */
|
||||
ll_dev->next = NULL;
|
||||
rte_compiler_barrier();
|
||||
|
||||
/* If ll == NULL then this is the first device. */
|
||||
if (ll) {
|
||||
/* Increment to the tail of the linked list. */
|
||||
while (ll->next != NULL)
|
||||
ll = ll->next;
|
||||
|
||||
ll->next = ll_dev;
|
||||
} else {
|
||||
*ll_root_addr = ll_dev;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove an entry from a used linked list. The entry must then be added to
|
||||
* the free linked list using put_data_ll_free_entry().
|
||||
*/
|
||||
static void
|
||||
rm_data_ll_entry(struct virtio_net_data_ll **ll_root_addr,
|
||||
struct virtio_net_data_ll *ll_dev,
|
||||
struct virtio_net_data_ll *ll_dev_last)
|
||||
{
|
||||
struct virtio_net_data_ll *ll = *ll_root_addr;
|
||||
|
||||
if (unlikely((ll == NULL) || (ll_dev == NULL)))
|
||||
return;
|
||||
|
||||
if (ll_dev == ll)
|
||||
*ll_root_addr = ll_dev->next;
|
||||
else
|
||||
if (likely(ll_dev_last != NULL))
|
||||
ll_dev_last->next = ll_dev->next;
|
||||
else
|
||||
RTE_LOG(ERR, VHOST_CONFIG,
|
||||
"Remove entry form ll failed.\n");
|
||||
}
|
||||
|
||||
/**
|
||||
* Find and return an entry from the free linked list.
|
||||
*/
|
||||
static struct virtio_net_data_ll *
|
||||
get_data_ll_free_entry(struct virtio_net_data_ll **ll_root_addr)
|
||||
{
|
||||
struct virtio_net_data_ll *ll_free = *ll_root_addr;
|
||||
struct virtio_net_data_ll *ll_dev;
|
||||
|
||||
if (ll_free == NULL)
|
||||
return NULL;
|
||||
|
||||
ll_dev = ll_free;
|
||||
*ll_root_addr = ll_free->next;
|
||||
|
||||
return ll_dev;
|
||||
}
|
||||
|
||||
/**
|
||||
* Place an entry back on to the free linked list.
|
||||
*/
|
||||
static void
|
||||
put_data_ll_free_entry(struct virtio_net_data_ll **ll_root_addr,
|
||||
struct virtio_net_data_ll *ll_dev)
|
||||
{
|
||||
struct virtio_net_data_ll *ll_free = *ll_root_addr;
|
||||
|
||||
if (ll_dev == NULL)
|
||||
return;
|
||||
|
||||
ll_dev->next = ll_free;
|
||||
*ll_root_addr = ll_dev;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a linked list of a given size.
|
||||
*/
|
||||
static struct virtio_net_data_ll *
|
||||
alloc_data_ll(uint32_t size)
|
||||
{
|
||||
struct virtio_net_data_ll *ll_new;
|
||||
uint32_t i;
|
||||
|
||||
/* Malloc and then chain the linked list. */
|
||||
ll_new = malloc(size * sizeof(struct virtio_net_data_ll));
|
||||
if (ll_new == NULL) {
|
||||
RTE_LOG(ERR, VHOST_CONFIG,
|
||||
"Failed to allocate memory for ll_new.\n");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
for (i = 0; i < size - 1; i++) {
|
||||
ll_new[i].vdev = NULL;
|
||||
ll_new[i].next = &ll_new[i+1];
|
||||
}
|
||||
ll_new[i].next = NULL;
|
||||
|
||||
return ll_new;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create the main linked list along with each individual cores
|
||||
* linked list. A used and a free list are created to manage entries.
|
||||
*/
|
||||
static int
|
||||
init_data_ll(void)
|
||||
{
|
||||
int lcore;
|
||||
|
||||
RTE_LCORE_FOREACH_SLAVE(lcore) {
|
||||
lcore_info[lcore].lcore_ll =
|
||||
malloc(sizeof(struct lcore_ll_info));
|
||||
if (lcore_info[lcore].lcore_ll == NULL) {
|
||||
RTE_LOG(ERR, VHOST_CONFIG,
|
||||
"Failed to allocate memory for lcore_ll.\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
lcore_info[lcore].lcore_ll->device_num = 0;
|
||||
lcore_info[lcore].lcore_ll->dev_removal_flag = ACK_DEV_REMOVAL;
|
||||
lcore_info[lcore].lcore_ll->ll_root_used = NULL;
|
||||
if (nb_devices % nb_switching_cores)
|
||||
lcore_info[lcore].lcore_ll->ll_root_free =
|
||||
alloc_data_ll((nb_devices / nb_switching_cores)
|
||||
+ 1);
|
||||
else
|
||||
lcore_info[lcore].lcore_ll->ll_root_free =
|
||||
alloc_data_ll(nb_devices / nb_switching_cores);
|
||||
}
|
||||
|
||||
/* Allocate devices up to a maximum of MAX_DEVICES. */
|
||||
ll_root_free = alloc_data_ll(MIN((nb_devices), MAX_DEVICES));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove a device from the specific data core linked list and
|
||||
* from the main linked list. Synchonization occurs through the use
|
||||
* of the lcore dev_removal_flag. Device is made volatile here
|
||||
* to avoid re-ordering of dev->remove=1 which can cause an infinite
|
||||
* loop in the rte_pause loop.
|
||||
*/
|
||||
static void
|
||||
destroy_device(volatile struct virtio_net *dev)
|
||||
{
|
||||
struct virtio_net_data_ll *ll_lcore_dev_cur;
|
||||
struct virtio_net_data_ll *ll_main_dev_cur;
|
||||
struct virtio_net_data_ll *ll_lcore_dev_last = NULL;
|
||||
struct virtio_net_data_ll *ll_main_dev_last = NULL;
|
||||
struct vhost_dev *vdev;
|
||||
int lcore;
|
||||
|
||||
dev->flags &= ~VIRTIO_DEV_RUNNING;
|
||||
|
||||
vdev = (struct vhost_dev *)dev->priv;
|
||||
|
||||
/* set the remove flag. */
|
||||
vdev->remove = 1;
|
||||
while (vdev->ready != DEVICE_SAFE_REMOVE)
|
||||
rte_pause();
|
||||
|
||||
/* Search for entry to be removed from lcore ll */
|
||||
ll_lcore_dev_cur = lcore_info[vdev->coreid].lcore_ll->ll_root_used;
|
||||
while (ll_lcore_dev_cur != NULL) {
|
||||
if (ll_lcore_dev_cur->vdev == vdev) {
|
||||
break;
|
||||
} else {
|
||||
ll_lcore_dev_last = ll_lcore_dev_cur;
|
||||
ll_lcore_dev_cur = ll_lcore_dev_cur->next;
|
||||
}
|
||||
}
|
||||
|
||||
if (ll_lcore_dev_cur == NULL) {
|
||||
RTE_LOG(ERR, VHOST_CONFIG,
|
||||
"(%"PRIu64") Failed to find the dev to be destroy.\n",
|
||||
dev->device_fh);
|
||||
return;
|
||||
}
|
||||
|
||||
/* Search for entry to be removed from main ll */
|
||||
ll_main_dev_cur = ll_root_used;
|
||||
ll_main_dev_last = NULL;
|
||||
while (ll_main_dev_cur != NULL) {
|
||||
if (ll_main_dev_cur->vdev == vdev) {
|
||||
break;
|
||||
} else {
|
||||
ll_main_dev_last = ll_main_dev_cur;
|
||||
ll_main_dev_cur = ll_main_dev_cur->next;
|
||||
}
|
||||
}
|
||||
|
||||
/* Remove entries from the lcore and main ll. */
|
||||
rm_data_ll_entry(&lcore_info[vdev->coreid].lcore_ll->ll_root_used,
|
||||
ll_lcore_dev_cur, ll_lcore_dev_last);
|
||||
rm_data_ll_entry(&ll_root_used, ll_main_dev_cur, ll_main_dev_last);
|
||||
|
||||
/* Set the dev_removal_flag on each lcore. */
|
||||
RTE_LCORE_FOREACH_SLAVE(lcore) {
|
||||
lcore_info[lcore].lcore_ll->dev_removal_flag =
|
||||
REQUEST_DEV_REMOVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Once each core has set the dev_removal_flag to
|
||||
* ACK_DEV_REMOVAL we can be sure that they can no longer access
|
||||
* the device removed from the linked lists and that the devices
|
||||
* are no longer in use.
|
||||
*/
|
||||
RTE_LCORE_FOREACH_SLAVE(lcore) {
|
||||
while (lcore_info[lcore].lcore_ll->dev_removal_flag
|
||||
!= ACK_DEV_REMOVAL)
|
||||
rte_pause();
|
||||
}
|
||||
|
||||
/* Add the entries back to the lcore and main free ll.*/
|
||||
put_data_ll_free_entry(&lcore_info[vdev->coreid].lcore_ll->ll_root_free,
|
||||
ll_lcore_dev_cur);
|
||||
put_data_ll_free_entry(&ll_root_free, ll_main_dev_cur);
|
||||
|
||||
/* Decrement number of device on the lcore. */
|
||||
lcore_info[vdev->coreid].lcore_ll->device_num--;
|
||||
|
||||
RTE_LOG(INFO, VHOST_DATA, "(%"PRIu64") Device has been removed "
|
||||
"from data core\n", dev->device_fh);
|
||||
|
||||
rte_free(vdev);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* A new device is added to a data core. First the device is added
|
||||
* to the main linked list and the allocated to a specific data core.
|
||||
*/
|
||||
static int
|
||||
new_device(struct virtio_net *dev)
|
||||
{
|
||||
struct virtio_net_data_ll *ll_dev;
|
||||
int lcore, core_add = 0;
|
||||
uint32_t device_num_min = nb_devices;
|
||||
struct vhost_dev *vdev;
|
||||
|
||||
vdev = rte_zmalloc("vhost device", sizeof(*vdev), RTE_CACHE_LINE_SIZE);
|
||||
if (vdev == NULL) {
|
||||
RTE_LOG(INFO, VHOST_DATA,
|
||||
"(%"PRIu64") Couldn't allocate memory for vhost dev\n",
|
||||
dev->device_fh);
|
||||
return -1;
|
||||
}
|
||||
vdev->dev = dev;
|
||||
dev->priv = vdev;
|
||||
/* Add device to main ll */
|
||||
ll_dev = get_data_ll_free_entry(&ll_root_free);
|
||||
if (ll_dev == NULL) {
|
||||
RTE_LOG(INFO, VHOST_DATA, "(%"PRIu64") No free entry found in"
|
||||
" linked list Device limit of %d devices per core"
|
||||
" has been reached\n", dev->device_fh, nb_devices);
|
||||
if (vdev->regions_hpa)
|
||||
rte_free(vdev->regions_hpa);
|
||||
rte_free(vdev);
|
||||
return -1;
|
||||
}
|
||||
ll_dev->vdev = vdev;
|
||||
add_data_ll_entry(&ll_root_used, ll_dev);
|
||||
vdev->rx_q = dev->device_fh;
|
||||
|
||||
/* reset ready flag */
|
||||
vdev->ready = DEVICE_MAC_LEARNING;
|
||||
vdev->remove = 0;
|
||||
|
||||
/* Find a suitable lcore to add the device. */
|
||||
RTE_LCORE_FOREACH_SLAVE(lcore) {
|
||||
if (lcore_info[lcore].lcore_ll->device_num < device_num_min) {
|
||||
device_num_min = lcore_info[lcore].lcore_ll->device_num;
|
||||
core_add = lcore;
|
||||
}
|
||||
}
|
||||
/* Add device to lcore ll */
|
||||
ll_dev = get_data_ll_free_entry(&lcore_info[core_add].lcore_ll->ll_root_free);
|
||||
if (ll_dev == NULL) {
|
||||
RTE_LOG(INFO, VHOST_DATA,
|
||||
"(%"PRIu64") Failed to add device to data core\n",
|
||||
dev->device_fh);
|
||||
vdev->ready = DEVICE_SAFE_REMOVE;
|
||||
destroy_device(dev);
|
||||
rte_free(vdev->regions_hpa);
|
||||
rte_free(vdev);
|
||||
return -1;
|
||||
}
|
||||
ll_dev->vdev = vdev;
|
||||
vdev->coreid = core_add;
|
||||
|
||||
add_data_ll_entry(&lcore_info[vdev->coreid].lcore_ll->ll_root_used,
|
||||
ll_dev);
|
||||
|
||||
/* Initialize device stats */
|
||||
memset(&dev_statistics[dev->device_fh], 0,
|
||||
sizeof(struct device_statistics));
|
||||
|
||||
/* Disable notifications. */
|
||||
rte_vhost_enable_guest_notification(dev, VIRTIO_RXQ, 0);
|
||||
rte_vhost_enable_guest_notification(dev, VIRTIO_TXQ, 0);
|
||||
lcore_info[vdev->coreid].lcore_ll->device_num++;
|
||||
dev->flags |= VIRTIO_DEV_RUNNING;
|
||||
|
||||
RTE_LOG(INFO, VHOST_DATA, "(%"PRIu64") Device has been added to data core %d\n",
|
||||
dev->device_fh, vdev->coreid);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* These callback allow devices to be added to the data core when configuration
|
||||
* has been fully complete.
|
||||
*/
|
||||
static const struct virtio_net_device_ops virtio_net_device_ops = {
|
||||
.new_device = new_device,
|
||||
.destroy_device = destroy_device,
|
||||
};
|
||||
|
||||
/**
|
||||
* This is a thread will wake up after a period to print stats if the user has
|
||||
* enabled them.
|
||||
*/
|
||||
static void
|
||||
print_stats(void)
|
||||
{
|
||||
struct virtio_net_data_ll *dev_ll;
|
||||
uint64_t tx_dropped, rx_dropped;
|
||||
uint64_t tx, tx_total, rx, rx_total;
|
||||
uint32_t device_fh;
|
||||
const char clr[] = { 27, '[', '2', 'J', '\0' };
|
||||
const char top_left[] = { 27, '[', '1', ';', '1', 'H', '\0' };
|
||||
|
||||
while (1) {
|
||||
sleep(enable_stats);
|
||||
|
||||
/* Clear screen and move to top left */
|
||||
printf("%s%s", clr, top_left);
|
||||
|
||||
printf("\nDevice statistics ================================");
|
||||
|
||||
dev_ll = ll_root_used;
|
||||
while (dev_ll != NULL) {
|
||||
device_fh = (uint32_t)dev_ll->vdev->dev->device_fh;
|
||||
tx_total = dev_statistics[device_fh].tx_total;
|
||||
tx = dev_statistics[device_fh].tx;
|
||||
tx_dropped = tx_total - tx;
|
||||
|
||||
rx_total = rte_atomic64_read(
|
||||
&dev_statistics[device_fh].rx_total_atomic);
|
||||
rx = rte_atomic64_read(
|
||||
&dev_statistics[device_fh].rx_atomic);
|
||||
rx_dropped = rx_total - rx;
|
||||
|
||||
printf("\nStatistics for device %"PRIu32" ----------"
|
||||
"\nTX total: %"PRIu64""
|
||||
"\nTX dropped: %"PRIu64""
|
||||
"\nTX successful: %"PRIu64""
|
||||
"\nRX total: %"PRIu64""
|
||||
"\nRX dropped: %"PRIu64""
|
||||
"\nRX successful: %"PRIu64"",
|
||||
device_fh,
|
||||
tx_total,
|
||||
tx_dropped,
|
||||
tx,
|
||||
rx_total,
|
||||
rx_dropped,
|
||||
rx);
|
||||
|
||||
dev_ll = dev_ll->next;
|
||||
}
|
||||
printf("\n================================================\n");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Main function, does initialisation and calls the per-lcore functions. The CUSE
|
||||
* device is also registered here to handle the IOCTLs.
|
||||
*/
|
||||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
struct rte_mempool *mbuf_pool = NULL;
|
||||
unsigned lcore_id, core_id = 0;
|
||||
unsigned nb_ports, valid_nb_ports;
|
||||
int ret;
|
||||
uint8_t portid;
|
||||
uint16_t queue_id;
|
||||
static pthread_t tid;
|
||||
|
||||
/* init EAL */
|
||||
ret = rte_eal_init(argc, argv);
|
||||
if (ret < 0)
|
||||
rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
|
||||
argc -= ret;
|
||||
argv += ret;
|
||||
|
||||
/* parse app arguments */
|
||||
ret = tep_termination_parse_args(argc, argv);
|
||||
if (ret < 0)
|
||||
rte_exit(EXIT_FAILURE, "Invalid argument\n");
|
||||
|
||||
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++)
|
||||
if (rte_lcore_is_enabled(lcore_id))
|
||||
lcore_ids[core_id++] = lcore_id;
|
||||
|
||||
/* set the number of swithcing cores available */
|
||||
nb_switching_cores = rte_lcore_count()-1;
|
||||
|
||||
/* Get the number of physical ports. */
|
||||
nb_ports = rte_eth_dev_count();
|
||||
if (nb_ports > RTE_MAX_ETHPORTS)
|
||||
nb_ports = RTE_MAX_ETHPORTS;
|
||||
|
||||
/*
|
||||
* Update the global var NB_PORTS and global array PORTS
|
||||
* and get value of var VALID_NB_PORTS according to system ports number
|
||||
*/
|
||||
valid_nb_ports = check_ports_num(nb_ports);
|
||||
|
||||
if ((valid_nb_ports == 0) || (valid_nb_ports > MAX_SUP_PORTS)) {
|
||||
rte_exit(EXIT_FAILURE, "Current enabled port number is %u,"
|
||||
"but only %u port can be enabled\n", nb_ports,
|
||||
MAX_SUP_PORTS);
|
||||
}
|
||||
|
||||
/* Create the mbuf pool. */
|
||||
mbuf_pool = rte_mempool_create(
|
||||
"MBUF_POOL",
|
||||
NUM_MBUFS_PER_PORT
|
||||
* valid_nb_ports,
|
||||
MBUF_SIZE, MBUF_CACHE_SIZE,
|
||||
sizeof(struct rte_pktmbuf_pool_private),
|
||||
rte_pktmbuf_pool_init, NULL,
|
||||
rte_pktmbuf_init, NULL,
|
||||
rte_socket_id(), 0);
|
||||
if (mbuf_pool == NULL)
|
||||
rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
|
||||
|
||||
for (queue_id = 0; queue_id < MAX_QUEUES + 1; queue_id++)
|
||||
vpool_array[queue_id].pool = mbuf_pool;
|
||||
|
||||
/* Set log level. */
|
||||
rte_set_log_level(LOG_LEVEL);
|
||||
|
||||
/* initialize all ports */
|
||||
for (portid = 0; portid < nb_ports; portid++) {
|
||||
/* skip ports that are not enabled */
|
||||
if ((enabled_port_mask & (1 << portid)) == 0) {
|
||||
RTE_LOG(INFO, VHOST_PORT,
|
||||
"Skipping disabled port %d\n", portid);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
/* Initialise all linked lists. */
|
||||
if (init_data_ll() == -1)
|
||||
rte_exit(EXIT_FAILURE, "Failed to initialize linked list\n");
|
||||
|
||||
/* Initialize device stats */
|
||||
memset(&dev_statistics, 0, sizeof(dev_statistics));
|
||||
|
||||
/* Enable stats if the user option is set. */
|
||||
if (enable_stats)
|
||||
pthread_create(&tid, NULL, (void *)print_stats, NULL);
|
||||
|
||||
/* Launch all data cores. */
|
||||
RTE_LCORE_FOREACH_SLAVE(lcore_id) {
|
||||
rte_eal_remote_launch(switch_worker,
|
||||
mbuf_pool, lcore_id);
|
||||
}
|
||||
|
||||
rte_vhost_feature_disable(1ULL << VIRTIO_NET_F_MRG_RXBUF);
|
||||
|
||||
/* Register CUSE device to handle IOCTLs. */
|
||||
ret = rte_vhost_driver_register((char *)&dev_basename);
|
||||
if (ret != 0)
|
||||
rte_exit(EXIT_FAILURE, "CUSE device setup failure.\n");
|
||||
|
||||
rte_vhost_driver_callback_register(&virtio_net_device_ops);
|
||||
|
||||
/* Start CUSE session. */
|
||||
rte_vhost_driver_session_start();
|
||||
|
||||
return 0;
|
||||
}
|
123
examples/tep_termination/main.h
Normal file
123
examples/tep_termination/main.h
Normal file
|
@ -0,0 +1,123 @@
|
|||
/*-
|
||||
* BSD LICENSE
|
||||
*
|
||||
* Copyright(c) 2010-2015 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_
|
||||
|
||||
#ifdef DEBUG
|
||||
#define LOG_LEVEL RTE_LOG_DEBUG
|
||||
#define LOG_DEBUG(log_type, fmt, args...) RTE_LOG(DEBUG, log_type, fmt, ##args)
|
||||
#else
|
||||
#define LOG_LEVEL RTE_LOG_INFO
|
||||
#define LOG_DEBUG(log_type, fmt, args...) do {} while (0)
|
||||
#endif
|
||||
|
||||
/* 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
|
||||
|
||||
/* State of virtio device. */
|
||||
#define DEVICE_MAC_LEARNING 0
|
||||
#define DEVICE_RX 1
|
||||
#define DEVICE_SAFE_REMOVE 2
|
||||
|
||||
#define MAX_QUEUES 512
|
||||
|
||||
/* Max burst size for RX/TX */
|
||||
#define MAX_PKT_BURST 32
|
||||
|
||||
/* Max number of devices. Limited by the application. */
|
||||
#define MAX_DEVICES 64
|
||||
|
||||
/* Per-device statistics struct */
|
||||
struct device_statistics {
|
||||
uint64_t tx_total;
|
||||
rte_atomic64_t rx_total_atomic;
|
||||
uint64_t rx_total;
|
||||
uint64_t tx;
|
||||
rte_atomic64_t rx_atomic;
|
||||
} __rte_cache_aligned;
|
||||
|
||||
/**
|
||||
* Device linked list structure for data path.
|
||||
*/
|
||||
struct vhost_dev {
|
||||
/**< Pointer to device created by vhost lib. */
|
||||
struct virtio_net *dev;
|
||||
/**< Number of memory regions for gpa to hpa translation. */
|
||||
uint32_t nregions_hpa;
|
||||
/**< Memory region information for gpa to hpa translation. */
|
||||
struct virtio_memory_regions_hpa *regions_hpa;
|
||||
/**< Device MAC address (Obtained on first TX packet). */
|
||||
struct ether_addr mac_address;
|
||||
/**< RX queue number. */
|
||||
uint16_t rx_q;
|
||||
/**< 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;
|
||||
} __rte_cache_aligned;
|
||||
|
||||
/**
|
||||
* Structure containing data core specific information.
|
||||
*/
|
||||
struct lcore_ll_info {
|
||||
/**< Pointer to head in free linked list. */
|
||||
struct virtio_net_data_ll *ll_root_free;
|
||||
/**< Pointer to head of used linked list. */
|
||||
struct virtio_net_data_ll *ll_root_used;
|
||||
/**< Number of devices on lcore. */
|
||||
uint32_t device_num;
|
||||
/**< Flag to synchronize device removal. */
|
||||
volatile uint8_t dev_removal_flag;
|
||||
};
|
||||
|
||||
struct lcore_info {
|
||||
/**< Pointer to data core specific lcore_ll_info struct */
|
||||
struct lcore_ll_info *lcore_ll;
|
||||
};
|
||||
|
||||
struct virtio_net_data_ll {
|
||||
/**< Pointer to device created by configuration core. */
|
||||
struct vhost_dev *vdev;
|
||||
/**< Pointer to next device in linked list. */
|
||||
struct virtio_net_data_ll *next;
|
||||
};
|
||||
|
||||
uint32_t
|
||||
virtio_dev_rx(struct virtio_net *dev, struct rte_mbuf **pkts, uint32_t count);
|
||||
|
||||
#endif /* _MAIN_H_ */
|
Loading…
Reference in a new issue