CONFIG_RTE_LIBRTE_PMD_SKELETON_EVENTDEV=y
CONFIG_RTE_LIBRTE_PMD_SKELETON_EVENTDEV_DEBUG=n
+#
+# Compile PMD for software event device
+#
+CONFIG_RTE_LIBRTE_PMD_SW_EVENTDEV=y
+CONFIG_RTE_LIBRTE_PMD_SW_EVENTDEV_DEBUG=n
+
#
# Compile librte_ring
#
DIRS-$(CONFIG_RTE_LIBRTE_PMD_SKELETON_EVENTDEV) += skeleton
DEPDIRS-skeleton = $(core-libs)
+DIRS-$(CONFIG_RTE_LIBRTE_PMD_SW_EVENTDEV) += sw
+DEPDIRS-sw = $(core-libs) librte_kvargs librte_ring
include $(RTE_SDK)/mk/rte.subdir.mk
--- /dev/null
+# BSD LICENSE
+#
+# Copyright(c) 2016-2017 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_sw_event.a
+
+# build flags
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+# for older GCC versions, allow us to initialize an event using
+# designated initializers.
+ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
+ifeq ($(shell test $(GCC_VERSION) -le 50 && echo 1), 1)
+CFLAGS += -Wno-missing-field-initializers
+endif
+endif
+
+# library version
+LIBABIVER := 1
+
+# versioning export map
+EXPORT_MAP := rte_pmd_evdev_sw_version.map
+
+# library source files
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_SW_EVENTDEV) += sw_evdev.c
+
+# export include files
+SYMLINK-y-include +=
+
+include $(RTE_SDK)/mk/rte.lib.mk
--- /dev/null
+DPDK_17.05 {
+ local: *;
+};
--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016-2017 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 <string.h>
+
+#include <rte_vdev.h>
+#include <rte_memzone.h>
+#include <rte_kvargs.h>
+#include <rte_ring.h>
+
+#include "sw_evdev.h"
+
+#define EVENTDEV_NAME_SW_PMD event_sw
+#define NUMA_NODE_ARG "numa_node"
+#define SCHED_QUANTA_ARG "sched_quanta"
+#define CREDIT_QUANTA_ARG "credit_quanta"
+
+static int
+assign_numa_node(const char *key __rte_unused, const char *value, void *opaque)
+{
+ int *socket_id = opaque;
+ *socket_id = atoi(value);
+ if (*socket_id >= RTE_MAX_NUMA_NODES)
+ return -1;
+ return 0;
+}
+
+static int
+set_sched_quanta(const char *key __rte_unused, const char *value, void *opaque)
+{
+ int *quanta = opaque;
+ *quanta = atoi(value);
+ if (*quanta < 0 || *quanta >= 4096)
+ return -1;
+ return 0;
+}
+
+static int
+set_credit_quanta(const char *key __rte_unused, const char *value, void *opaque)
+{
+ int *credit = opaque;
+ *credit = atoi(value);
+ if (*credit < 0 || *credit >= 128)
+ return -1;
+ return 0;
+}
+
+static int
+sw_probe(const char *name, const char *params)
+{
+ static const struct rte_eventdev_ops evdev_sw_ops = {
+ };
+
+ static const char *const args[] = {
+ NUMA_NODE_ARG,
+ SCHED_QUANTA_ARG,
+ CREDIT_QUANTA_ARG,
+ NULL
+ };
+ struct rte_eventdev *dev;
+ struct sw_evdev *sw;
+ int socket_id = rte_socket_id();
+ int sched_quanta = SW_DEFAULT_SCHED_QUANTA;
+ int credit_quanta = SW_DEFAULT_CREDIT_QUANTA;
+
+ if (params != NULL && params[0] != '\0') {
+ struct rte_kvargs *kvlist = rte_kvargs_parse(params, args);
+
+ if (!kvlist) {
+ SW_LOG_INFO(
+ "Ignoring unsupported parameters when creating device '%s'\n",
+ name);
+ } else {
+ int ret = rte_kvargs_process(kvlist, NUMA_NODE_ARG,
+ assign_numa_node, &socket_id);
+ if (ret != 0) {
+ SW_LOG_ERR(
+ "%s: Error parsing numa node parameter",
+ name);
+ rte_kvargs_free(kvlist);
+ return ret;
+ }
+
+ ret = rte_kvargs_process(kvlist, SCHED_QUANTA_ARG,
+ set_sched_quanta, &sched_quanta);
+ if (ret != 0) {
+ SW_LOG_ERR(
+ "%s: Error parsing sched quanta parameter",
+ name);
+ rte_kvargs_free(kvlist);
+ return ret;
+ }
+
+ ret = rte_kvargs_process(kvlist, CREDIT_QUANTA_ARG,
+ set_credit_quanta, &credit_quanta);
+ if (ret != 0) {
+ SW_LOG_ERR(
+ "%s: Error parsing credit quanta parameter",
+ name);
+ rte_kvargs_free(kvlist);
+ return ret;
+ }
+
+ rte_kvargs_free(kvlist);
+ }
+ }
+
+ SW_LOG_INFO(
+ "Creating eventdev sw device %s, numa_node=%d, sched_quanta=%d, credit_quanta=%d\n",
+ name, socket_id, sched_quanta, credit_quanta);
+
+ dev = rte_event_pmd_vdev_init(name,
+ sizeof(struct sw_evdev), socket_id);
+ if (dev == NULL) {
+ SW_LOG_ERR("eventdev vdev init() failed");
+ return -EFAULT;
+ }
+ dev->dev_ops = &evdev_sw_ops;
+
+ sw = dev->data->dev_private;
+ sw->data = dev->data;
+
+ /* copy values passed from vdev command line to instance */
+ sw->credit_update_quanta = credit_quanta;
+ sw->sched_quanta = sched_quanta;
+
+ return 0;
+}
+
+static int
+sw_remove(const char *name)
+{
+ if (name == NULL)
+ return -EINVAL;
+
+ SW_LOG_INFO("Closing eventdev sw device %s\n", name);
+
+ return rte_event_pmd_vdev_uninit(name);
+}
+
+static struct rte_vdev_driver evdev_sw_pmd_drv = {
+ .probe = sw_probe,
+ .remove = sw_remove
+};
+
+RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_SW_PMD, evdev_sw_pmd_drv);
+RTE_PMD_REGISTER_PARAM_STRING(event_sw, NUMA_NODE_ARG "=<int> "
+ SCHED_QUANTA_ARG "=<int>" CREDIT_QUANTA_ARG "=<int>");
--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016-2017 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.
+ */
+
+#ifndef _SW_EVDEV_H_
+#define _SW_EVDEV_H_
+
+#include <rte_eventdev.h>
+#include <rte_eventdev_pmd.h>
+
+#define SW_DEFAULT_CREDIT_QUANTA 32
+#define SW_DEFAULT_SCHED_QUANTA 128
+#define SW_QID_NUM_FIDS 16384
+#define SW_IQS_MAX 4
+#define SW_Q_PRIORITY_MAX 255
+#define SW_PORTS_MAX 64
+#define MAX_SW_CONS_Q_DEPTH 128
+#define SW_INFLIGHT_EVENTS_TOTAL 4096
+/* allow for lots of over-provisioning */
+#define MAX_SW_PROD_Q_DEPTH 4096
+#define SW_FRAGMENTS_MAX 16
+
+#define EVENTDEV_NAME_SW_PMD event_sw
+#define SW_PMD_NAME RTE_STR(event_sw)
+
+#ifdef RTE_LIBRTE_PMD_EVDEV_SW_DEBUG
+#define SW_LOG_INFO(fmt, args...) \
+ RTE_LOG(INFO, EVENTDEV, "[%s] %s() line %u: " fmt "\n", \
+ SW_PMD_NAME, \
+ __func__, __LINE__, ## args)
+
+#define SW_LOG_DBG(fmt, args...) \
+ RTE_LOG(DEBUG, EVENTDEV, "[%s] %s() line %u: " fmt "\n", \
+ SW_PMD_NAME, \
+ __func__, __LINE__, ## args)
+#else
+#define SW_LOG_INFO(fmt, args...)
+#define SW_LOG_DBG(fmt, args...)
+#endif
+
+#define SW_LOG_ERR(fmt, args...) \
+ RTE_LOG(ERR, EVENTDEV, "[%s] %s() line %u: " fmt "\n", \
+ SW_PMD_NAME, \
+ __func__, __LINE__, ## args)
+
+/* Records basic event stats at a given point. Used in port and qid structs */
+struct sw_point_stats {
+ uint64_t rx_pkts;
+ uint64_t rx_dropped;
+ uint64_t tx_pkts;
+};
+
+/* structure used to track what port a flow (FID) is pinned to */
+struct sw_fid_t {
+ /* which CQ this FID is currently pinned to */
+ int32_t cq;
+ /* number of packets gone to the CQ with this FID */
+ uint32_t pcount;
+};
+
+struct reorder_buffer_entry {
+ uint16_t num_fragments; /**< Number of packet fragments */
+ uint16_t fragment_index; /**< Points to the oldest valid frag */
+ uint8_t ready; /**< Entry is ready to be reordered */
+ struct rte_event fragments[SW_FRAGMENTS_MAX];
+};
+
+struct sw_qid {
+ /* set when the QID has been initialized */
+ uint8_t initialized;
+ /* The type of this QID */
+ int8_t type;
+ /* Integer ID representing the queue. This is used in history lists,
+ * to identify the stage of processing.
+ */
+ uint32_t id;
+ struct sw_point_stats stats;
+
+ /* Internal priority rings for packets */
+ struct iq_ring *iq[SW_IQS_MAX];
+ uint32_t iq_pkt_mask; /* A mask to indicate packets in an IQ */
+ uint64_t iq_pkt_count[SW_IQS_MAX];
+
+ /* Information on what CQs are polling this IQ */
+ uint32_t cq_num_mapped_cqs;
+ uint32_t cq_next_tx; /* cq to write next (non-atomic) packet */
+ uint32_t cq_map[SW_PORTS_MAX];
+
+ /* Track flow ids for atomic load balancing */
+ struct sw_fid_t fids[SW_QID_NUM_FIDS];
+
+ /* Track packet order for reordering when needed */
+ struct reorder_buffer_entry *reorder_buffer; /*< pkts await reorder */
+ struct rte_ring *reorder_buffer_freelist; /* available reorder slots */
+ uint32_t reorder_buffer_index; /* oldest valid reorder buffer entry */
+ uint32_t window_size; /* Used to wrap reorder_buffer_index */
+
+ uint8_t priority;
+};
+
+struct sw_evdev {
+ struct rte_eventdev_data *data;
+
+ int32_t sched_quanta;
+ uint32_t credit_update_quanta;
+};
+
+static inline struct sw_evdev *
+sw_pmd_priv(const struct rte_eventdev *eventdev)
+{
+ return eventdev->data->dev_private;
+}
+
+static inline const struct sw_evdev *
+sw_pmd_priv_const(const struct rte_eventdev *eventdev)
+{
+ return eventdev->data->dev_private;
+}
+
+#endif /* _SW_EVDEV_H_ */
ifeq ($(CONFIG_RTE_LIBRTE_EVENTDEV),y)
_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SKELETON_EVENTDEV) += -lrte_pmd_skeleton_event
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SW_EVENTDEV) += -lrte_pmd_sw_event
endif # CONFIG_RTE_LIBRTE_EVENTDEV
endif # !CONFIG_RTE_BUILD_SHARED_LIBS
git.droids-corp.org / dpdk.git / commitdiff