@@ -535,6 +535,12 @@ CONFIG_RTE_LIBRTE_PMD_MRVL_CRYPTO=n
CONFIG_RTE_LIBRTE_PMD_MRVL_CRYPTO_DEBUG=n
#
+# Compile generic compression device library
+#
+CONFIG_RTE_LIBRTE_COMPRESSDEV=y
+CONFIG_RTE_COMPRESS_MAX_DEVS=64
+
+#
# Compile generic security library
#
CONFIG_RTE_LIBRTE_SECURITY=y
@@ -48,6 +48,9 @@
#define RTE_ETHDEV_QUEUE_STAT_CNTRS 16
#define RTE_ETHDEV_RXTX_CALLBACKS 1
+/* compressdev defines */
+#define RTE_COMPRESS_MAX_DEVS 64
+
/* cryptodev defines */
#define RTE_CRYPTO_MAX_DEVS 64
#define RTE_CRYPTODEV_NAME_LEN 64
@@ -26,6 +26,9 @@ DEPDIRS-librte_bbdev := librte_eal librte_mempool librte_mbuf
DIRS-$(CONFIG_RTE_LIBRTE_CRYPTODEV) += librte_cryptodev
DEPDIRS-librte_cryptodev := librte_eal librte_mempool librte_ring librte_mbuf
DEPDIRS-librte_cryptodev += librte_kvargs
+DIRS-$(CONFIG_RTE_LIBRTE_COMPRESSDEV) += librte_compressdev
+DEPDIRS-librte_compressdev := librte_eal librte_mempool librte_ring librte_mbuf
+DEPDIRS-librte_compressdev += librte_kvargs
DIRS-$(CONFIG_RTE_LIBRTE_SECURITY) += librte_security
DEPDIRS-librte_security := librte_eal librte_mempool librte_ring librte_mbuf
DEPDIRS-librte_security += librte_ether
new file mode 100644
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017-2018 Intel Corporation
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# library name
+LIB = librte_compressdev.a
+
+# library version
+LIBABIVER := 1
+
+# build flags
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+LDLIBS += -lrte_eal -lrte_mempool -lrte_kvargs
+
+# library source files
+SRCS-y += rte_compressdev.c rte_compressdev_pmd.c
+
+# export include files
+SYMLINK-y-include += rte_comp.h
+SYMLINK-y-include += rte_compressdev.h
+SYMLINK-y-include += rte_compressdev_pmd.h
+
+# versioning export map
+EXPORT_MAP := rte_compressdev_version.map
+
+include $(RTE_SDK)/mk/rte.lib.mk
new file mode 100644
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Intel Corporation
+
+allow_experimental_apis = true
+sources = files('rte_compressdev.c', 'rte_compressdev_pmd.c')
+headers = files('rte_compressdev.h',
+ 'rte_compressdev_pmd.h',
+ 'rte_comp.h')
+deps += ['kvargs', 'mbuf']
new file mode 100644
@@ -0,0 +1,904 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Intel Corporation
+ */
+
+#include <sys/types.h>
+#include <sys/queue.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <netinet/in.h>
+
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_dev.h>
+#include <rte_interrupts.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_launch.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_common.h>
+#include <rte_mempool.h>
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_errno.h>
+#include <rte_spinlock.h>
+#include <rte_string_fns.h>
+
+#include "rte_comp.h"
+#include "rte_compressdev.h"
+#include "rte_compressdev_pmd.h"
+
+static uint8_t nb_drivers;
+
+struct rte_compressdev rte_comp_devices[RTE_COMPRESS_MAX_DEVS];
+
+struct rte_compressdev *rte_compressdevs = &rte_comp_devices[0];
+
+static struct rte_compressdev_global compressdev_globals = {
+ .devs = &rte_comp_devices[0],
+ .data = { NULL },
+ .nb_devs = 0,
+ .max_devs = RTE_COMPRESS_MAX_DEVS
+};
+
+struct rte_compressdev_global *rte_compressdev_globals = &compressdev_globals;
+
+/**
+ * The compression algorithm strings identifiers.
+ * It could be used in application command line.
+ */
+const char *
+rte_comp_algorithm_strings[] = {
+ [RTE_COMP_ALGO_DEFLATE] = "deflate",
+ [RTE_COMP_ALGO_LZS] = "lzs"
+};
+
+
+#define param_range_check(x, y) \
+ (((x < y.min) || (x > y.max)) || \
+ (y.increment != 0 && (x % y.increment) != 0))
+
+const struct rte_compressdev_capabilities *__rte_experimental
+rte_compressdev_capability_get(uint8_t dev_id,
+ enum rte_comp_algorithm algo)
+{
+ const struct rte_compressdev_capabilities *capability;
+ struct rte_compressdev_info dev_info;
+ int i = 0;
+
+ memset(&dev_info, 0, sizeof(struct rte_compressdev_info));
+ rte_compressdev_info_get(dev_id, &dev_info);
+
+ while ((capability = &dev_info.capabilities[i++])->algo !=
+ RTE_COMP_ALGO_UNSPECIFIED){
+ if (capability->algo == algo)
+ return capability;
+ }
+
+ return NULL;
+}
+
+const char *__rte_experimental
+rte_compressdev_get_feature_name(uint64_t flag)
+{
+ switch (flag) {
+ case RTE_COMPDEV_FF_HW_ACCELERATED:
+ return "HW_ACCELERATED";
+ case RTE_COMPDEV_FF_CPU_SSE:
+ return "CPU_SSE";
+ case RTE_COMPDEV_FF_CPU_AVX:
+ return "CPU_AVX";
+ case RTE_COMPDEV_FF_CPU_AVX2:
+ return "CPU_AVX2";
+ case RTE_COMPDEV_FF_CPU_AVX512:
+ return "CPU_AVX512";
+ case RTE_COMPDEV_FF_CPU_NEON:
+ return "CPU_NEON";
+ default:
+ return NULL;
+ }
+}
+
+const char *__rte_experimental
+rte_comp_get_feature_name(uint64_t flag)
+{
+ switch (flag) {
+ case RTE_COMP_FF_STATEFUL_COMPRESSION:
+ return "STATEFUL_COMPRESSION";
+ case RTE_COMP_FF_STATEFUL_DECOMPRESSION:
+ return "STATEFUL_DECOMPRESSION";
+ case RTE_COMP_FF_MBUF_SCATTER_GATHER:
+ return "MBUF_SCATTER_GATHER";
+ case RTE_COMP_FF_MULTI_PKT_CHECKSUM:
+ return "MULTI_PKT_CHECKSUM";
+ case RTE_COMP_FF_ADLER32_CHECKSUM:
+ return "ADLER32_CHECKSUM";
+ case RTE_COMP_FF_CRC32_CHECKSUM:
+ return "CRC32_CHECKSUM";
+ case RTE_COMP_FF_CRC32_ADLER32_CHECKSUM:
+ return "CRC32_ADLER32_CHECKSUM";
+ case RTE_COMP_FF_NONCOMPRESSED_BLOCKS:
+ return "NONCOMPRESSED_BLOCKS";
+ default:
+ return NULL;
+ }
+}
+
+struct rte_compressdev *__rte_experimental
+rte_compressdev_pmd_get_dev(uint8_t dev_id)
+{
+ return &rte_compressdev_globals->devs[dev_id];
+}
+
+struct rte_compressdev *__rte_experimental
+rte_compressdev_pmd_get_named_dev(const char *name)
+{
+ struct rte_compressdev *dev;
+ unsigned int i;
+
+ if (name == NULL)
+ return NULL;
+
+ for (i = 0; i < rte_compressdev_globals->max_devs; i++) {
+ dev = &rte_compressdev_globals->devs[i];
+
+ if ((dev->attached == RTE_COMPRESSDEV_ATTACHED) &&
+ (strcmp(dev->data->name, name) == 0))
+ return dev;
+ }
+
+ return NULL;
+}
+
+unsigned int __rte_experimental
+rte_compressdev_pmd_is_valid_dev(uint8_t dev_id)
+{
+ struct rte_compressdev *dev = NULL;
+
+ if (dev_id >= rte_compressdev_globals->nb_devs)
+ return 0;
+
+ dev = rte_compressdev_pmd_get_dev(dev_id);
+ if (dev->attached != RTE_COMPRESSDEV_ATTACHED)
+ return 0;
+ else
+ return 1;
+}
+
+
+int __rte_experimental
+rte_compressdev_get_dev_id(const char *name)
+{
+ unsigned int i;
+
+ if (name == NULL)
+ return -1;
+
+ for (i = 0; i < rte_compressdev_globals->nb_devs; i++)
+ if ((strcmp(rte_compressdev_globals->devs[i].data->name, name)
+ == 0) &&
+ (rte_compressdev_globals->devs[i].attached ==
+ RTE_COMPRESSDEV_ATTACHED))
+ return i;
+
+ return -1;
+}
+
+uint8_t __rte_experimental
+rte_compressdev_count(void)
+{
+ return rte_compressdev_globals->nb_devs;
+}
+
+uint8_t __rte_experimental
+rte_compressdev_device_count_by_driver(uint8_t driver_id)
+{
+ uint8_t i, dev_count = 0;
+
+ for (i = 0; i < rte_compressdev_globals->max_devs; i++)
+ if (rte_compressdev_globals->devs[i].driver_id == driver_id &&
+ rte_compressdev_globals->devs[i].attached ==
+ RTE_COMPRESSDEV_ATTACHED)
+ dev_count++;
+
+ return dev_count;
+}
+
+uint8_t __rte_experimental
+rte_compressdev_devices_get(const char *driver_name, uint8_t *devices,
+ uint8_t nb_devices)
+{
+ uint8_t i, count = 0;
+ struct rte_compressdev *devs = rte_compressdev_globals->devs;
+ uint8_t max_devs = rte_compressdev_globals->max_devs;
+
+ for (i = 0; i < max_devs && count < nb_devices; i++) {
+
+ if (devs[i].attached == RTE_COMPRESSDEV_ATTACHED) {
+ int cmp;
+
+ cmp = strncmp(devs[i].device->driver->name,
+ driver_name,
+ strlen(driver_name));
+
+ if (cmp == 0)
+ devices[count++] = devs[i].data->dev_id;
+ }
+ }
+
+ return count;
+}
+
+
+int __rte_experimental
+rte_compressdev_socket_id(uint8_t dev_id)
+{
+ struct rte_compressdev *dev;
+
+ if (!rte_compressdev_pmd_is_valid_dev(dev_id))
+ return -1;
+
+ dev = rte_compressdev_pmd_get_dev(dev_id);
+
+ return dev->data->socket_id;
+}
+
+static inline int
+rte_compressdev_data_alloc(uint8_t dev_id, struct rte_compressdev_data **data,
+ int socket_id)
+{
+ char mz_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+ const struct rte_memzone *mz;
+ int n;
+
+ /* generate memzone name */
+ n = snprintf(mz_name, sizeof(mz_name),
+ "rte_compressdev_data_%u", dev_id);
+ if (n >= (int)sizeof(mz_name))
+ return -EINVAL;
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ mz = rte_memzone_reserve(mz_name,
+ sizeof(struct rte_compressdev_data),
+ socket_id, 0);
+ } else
+ mz = rte_memzone_lookup(mz_name);
+
+ if (mz == NULL)
+ return -ENOMEM;
+
+ *data = mz->addr;
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+ memset(*data, 0, sizeof(struct rte_compressdev_data));
+
+ return 0;
+}
+
+static uint8_t
+rte_compressdev_find_free_device_index(void)
+{
+ uint8_t dev_id;
+
+ for (dev_id = 0; dev_id < RTE_COMPRESS_MAX_DEVS; dev_id++) {
+ if (rte_comp_devices[dev_id].attached ==
+ RTE_COMPRESSDEV_DETACHED)
+ return dev_id;
+ }
+ return RTE_COMPRESS_MAX_DEVS;
+}
+
+struct rte_compressdev * __rte_experimental
+rte_compressdev_pmd_allocate(const char *name, int socket_id)
+{
+ struct rte_compressdev *compressdev;
+ uint8_t dev_id;
+
+ if (rte_compressdev_pmd_get_named_dev(name) != NULL) {
+ COMPRESSDEV_LOG(ERR,
+ "comp device with name %s already allocated!", name);
+ return NULL;
+ }
+
+ dev_id = rte_compressdev_find_free_device_index();
+ if (dev_id == RTE_COMPRESS_MAX_DEVS) {
+ COMPRESSDEV_LOG(ERR, "Reached maximum number of comp devices");
+ return NULL;
+ }
+
+ compressdev = rte_compressdev_pmd_get_dev(dev_id);
+
+ if (compressdev->data == NULL) {
+ struct rte_compressdev_data *compressdev_data =
+ compressdev_globals.data[dev_id];
+
+ int retval = rte_compressdev_data_alloc(dev_id,
+ &compressdev_data, socket_id);
+
+ if (retval < 0 || compressdev_data == NULL)
+ return NULL;
+
+ compressdev->data = compressdev_data;
+
+ snprintf(compressdev->data->name, RTE_COMPRESSDEV_NAME_MAX_LEN,
+ "%s", name);
+
+ compressdev->data->dev_id = dev_id;
+ compressdev->data->socket_id = socket_id;
+ compressdev->data->dev_started = 0;
+
+ compressdev->attached = RTE_COMPRESSDEV_ATTACHED;
+
+ compressdev_globals.nb_devs++;
+ }
+
+ return compressdev;
+}
+
+int __rte_experimental
+rte_compressdev_pmd_release_device(struct rte_compressdev *compressdev)
+{
+ int ret;
+
+ if (compressdev == NULL)
+ return -EINVAL;
+
+ /* Close device only if device operations have been set */
+ if (compressdev->dev_ops) {
+ ret = rte_compressdev_close(compressdev->data->dev_id);
+ if (ret < 0)
+ return ret;
+ }
+
+ compressdev->attached = RTE_COMPRESSDEV_DETACHED;
+ compressdev_globals.nb_devs--;
+ return 0;
+}
+
+uint16_t __rte_experimental
+rte_compressdev_queue_pair_count(uint8_t dev_id)
+{
+ struct rte_compressdev *dev;
+
+ dev = &rte_comp_devices[dev_id];
+ return dev->data->nb_queue_pairs;
+}
+
+static int
+rte_compressdev_queue_pairs_config(struct rte_compressdev *dev,
+ uint16_t nb_qpairs, int socket_id)
+{
+ struct rte_compressdev_info dev_info;
+ void **qp;
+ unsigned int i;
+
+ if ((dev == NULL) || (nb_qpairs < 1)) {
+ COMPRESSDEV_LOG(ERR, "invalid param: dev %p, nb_queues %u",
+ dev, nb_qpairs);
+ return -EINVAL;
+ }
+
+ COMPRESSDEV_LOG(DEBUG, "Setup %d queues pairs on device %u",
+ nb_qpairs, dev->data->dev_id);
+
+ memset(&dev_info, 0, sizeof(struct rte_compressdev_info));
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
+ (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
+
+ if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
+ COMPRESSDEV_LOG(ERR, "Invalid num queue_pairs (%u) for dev %u",
+ nb_qpairs, dev->data->dev_id);
+ return -EINVAL;
+ }
+
+ if (dev->data->queue_pairs == NULL) { /* first time configuration */
+ dev->data->queue_pairs = rte_zmalloc_socket(
+ "compressdev->queue_pairs",
+ sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
+ RTE_CACHE_LINE_SIZE, socket_id);
+
+ if (dev->data->queue_pairs == NULL) {
+ dev->data->nb_queue_pairs = 0;
+ COMPRESSDEV_LOG(ERR,
+ "failed to get memory for qp meta data, nb_queues %u",
+ nb_qpairs);
+ return -(ENOMEM);
+ }
+ } else { /* re-configure */
+ int ret;
+ uint16_t old_nb_queues = dev->data->nb_queue_pairs;
+
+ qp = dev->data->queue_pairs;
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
+ -ENOTSUP);
+
+ for (i = nb_qpairs; i < old_nb_queues; i++) {
+ ret = (*dev->dev_ops->queue_pair_release)(dev, i);
+ if (ret < 0)
+ return ret;
+ }
+
+ qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
+ RTE_CACHE_LINE_SIZE);
+ if (qp == NULL) {
+ COMPRESSDEV_LOG(ERR,
+ "failed to realloc qp meta data, nb_queues %u",
+ nb_qpairs);
+ return -(ENOMEM);
+ }
+
+ if (nb_qpairs > old_nb_queues) {
+ uint16_t new_qs = nb_qpairs - old_nb_queues;
+
+ memset(qp + old_nb_queues, 0,
+ sizeof(qp[0]) * new_qs);
+ }
+
+ dev->data->queue_pairs = qp;
+
+ }
+ dev->data->nb_queue_pairs = nb_qpairs;
+ return 0;
+}
+
+int __rte_experimental
+rte_compressdev_configure(uint8_t dev_id, struct rte_compressdev_config *config)
+{
+ struct rte_compressdev *dev;
+ int diag;
+
+ if (!rte_compressdev_pmd_is_valid_dev(dev_id)) {
+ COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
+ return -EINVAL;
+ }
+
+ dev = &rte_comp_devices[dev_id];
+
+ if (dev->data->dev_started) {
+ COMPRESSDEV_LOG(ERR,
+ "device %d must be stopped to allow configuration", dev_id);
+ return -EBUSY;
+ }
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
+
+ /* Setup new number of queue pairs and reconfigure device. */
+ diag = rte_compressdev_queue_pairs_config(dev, config->nb_queue_pairs,
+ config->socket_id);
+ if (diag != 0) {
+ COMPRESSDEV_LOG(ERR,
+ "dev%d rte_comp_dev_queue_pairs_config = %d",
+ dev_id, diag);
+ return diag;
+ }
+
+ return (*dev->dev_ops->dev_configure)(dev, config);
+}
+
+
+int __rte_experimental
+rte_compressdev_start(uint8_t dev_id)
+{
+ struct rte_compressdev *dev;
+ int diag;
+
+ COMPRESSDEV_LOG(DEBUG, "Start dev_id=%" PRIu8, dev_id);
+
+ if (!rte_compressdev_pmd_is_valid_dev(dev_id)) {
+ COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
+ return -EINVAL;
+ }
+
+ dev = &rte_comp_devices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
+
+ if (dev->data->dev_started != 0) {
+ COMPRESSDEV_LOG(ERR,
+ "Device with dev_id=%" PRIu8 " already started", dev_id);
+ return 0;
+ }
+
+ diag = (*dev->dev_ops->dev_start)(dev);
+ if (diag == 0)
+ dev->data->dev_started = 1;
+ else
+ return diag;
+
+ return 0;
+}
+
+void __rte_experimental
+rte_compressdev_stop(uint8_t dev_id)
+{
+ struct rte_compressdev *dev;
+
+ if (!rte_compressdev_pmd_is_valid_dev(dev_id)) {
+ COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
+ return;
+ }
+
+ dev = &rte_comp_devices[dev_id];
+
+ RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
+
+ if (dev->data->dev_started == 0) {
+ COMPRESSDEV_LOG(ERR,
+ "Device with dev_id=%" PRIu8 " already stopped", dev_id);
+ return;
+ }
+
+ (*dev->dev_ops->dev_stop)(dev);
+ dev->data->dev_started = 0;
+}
+
+int __rte_experimental
+rte_compressdev_close(uint8_t dev_id)
+{
+ struct rte_compressdev *dev;
+ int retval;
+
+ if (!rte_compressdev_pmd_is_valid_dev(dev_id)) {
+ COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
+ return -1;
+ }
+
+ dev = &rte_comp_devices[dev_id];
+
+ /* Device must be stopped before it can be closed */
+ if (dev->data->dev_started == 1) {
+ COMPRESSDEV_LOG(ERR, "Device %u must be stopped before closing",
+ dev_id);
+ return -EBUSY;
+ }
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
+ retval = (*dev->dev_ops->dev_close)(dev);
+
+ if (retval < 0)
+ return retval;
+
+ return 0;
+}
+
+int __rte_experimental
+rte_compressdev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
+ uint32_t max_inflight_ops, int socket_id)
+{
+ struct rte_compressdev *dev;
+
+ if (!rte_compressdev_pmd_is_valid_dev(dev_id)) {
+ COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
+ return -EINVAL;
+ }
+
+ dev = &rte_comp_devices[dev_id];
+ if (queue_pair_id >= dev->data->nb_queue_pairs) {
+ COMPRESSDEV_LOG(ERR, "Invalid queue_pair_id=%d", queue_pair_id);
+ return -EINVAL;
+ }
+
+ if (dev->data->dev_started) {
+ COMPRESSDEV_LOG(ERR,
+ "device %d must be stopped to allow configuration", dev_id);
+ return -EBUSY;
+ }
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
+
+ return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id,
+ max_inflight_ops, socket_id);
+}
+
+
+int __rte_experimental
+rte_compressdev_stats_get(uint8_t dev_id, struct rte_compressdev_stats *stats)
+{
+ struct rte_compressdev *dev;
+
+ if (!rte_compressdev_pmd_is_valid_dev(dev_id)) {
+ COMPRESSDEV_LOG(ERR, "Invalid dev_id=%d", dev_id);
+ return -ENODEV;
+ }
+
+ if (stats == NULL) {
+ COMPRESSDEV_LOG(ERR, "Invalid stats ptr");
+ return -EINVAL;
+ }
+
+ dev = &rte_comp_devices[dev_id];
+ memset(stats, 0, sizeof(*stats));
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
+ (*dev->dev_ops->stats_get)(dev, stats);
+ return 0;
+}
+
+void __rte_experimental
+rte_compressdev_stats_reset(uint8_t dev_id)
+{
+ struct rte_compressdev *dev;
+
+ if (!rte_compressdev_pmd_is_valid_dev(dev_id)) {
+ COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
+ return;
+ }
+
+ dev = &rte_comp_devices[dev_id];
+
+ RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
+ (*dev->dev_ops->stats_reset)(dev);
+}
+
+
+void __rte_experimental
+rte_compressdev_info_get(uint8_t dev_id, struct rte_compressdev_info *dev_info)
+{
+ struct rte_compressdev *dev;
+
+ if (dev_id >= compressdev_globals.nb_devs) {
+ COMPRESSDEV_LOG(ERR, "Invalid dev_id=%d", dev_id);
+ return;
+ }
+
+ dev = &rte_comp_devices[dev_id];
+
+ memset(dev_info, 0, sizeof(struct rte_compressdev_info));
+
+ RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
+ (*dev->dev_ops->dev_infos_get)(dev, dev_info);
+
+ dev_info->driver_name = dev->device->driver->name;
+}
+
+int __rte_experimental
+rte_compressdev_private_xform_create(uint8_t dev_id,
+ const struct rte_comp_xform *xform,
+ void **priv_xform)
+{
+ struct rte_compressdev *dev;
+ int ret;
+
+ dev = rte_compressdev_pmd_get_dev(dev_id);
+
+ if (xform == NULL || priv_xform == NULL || dev == NULL)
+ return -EINVAL;
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->private_xform_create, -ENOTSUP);
+ ret = (*dev->dev_ops->private_xform_create)(dev, xform, priv_xform);
+ if (ret < 0) {
+ COMPRESSDEV_LOG(ERR,
+ "dev_id %d failed to create private_xform: err=%d",
+ dev_id, ret);
+ return ret;
+ };
+
+ return 0;
+}
+
+int __rte_experimental
+rte_compressdev_private_xform_free(uint8_t dev_id, void *priv_xform)
+{
+ struct rte_compressdev *dev;
+ int ret;
+
+ dev = rte_compressdev_pmd_get_dev(dev_id);
+
+ if (dev == NULL || priv_xform == NULL)
+ return -EINVAL;
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->private_xform_free, -ENOTSUP);
+ ret = dev->dev_ops->private_xform_free(dev, priv_xform);
+ if (ret < 0) {
+ COMPRESSDEV_LOG(ERR,
+ "dev_id %d failed to free private xform: err=%d",
+ dev_id, ret);
+ return ret;
+ };
+
+ return 0;
+}
+
+int __rte_experimental
+rte_compressdev_stream_create(uint8_t dev_id,
+ const struct rte_comp_xform *xform,
+ void **stream)
+{
+ struct rte_compressdev *dev;
+ int ret;
+
+ dev = rte_compressdev_pmd_get_dev(dev_id);
+
+ if (xform == NULL || dev == NULL || stream == NULL)
+ return -EINVAL;
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stream_create, -ENOTSUP);
+ ret = (*dev->dev_ops->stream_create)(dev, xform, stream);
+ if (ret < 0) {
+ COMPRESSDEV_LOG(ERR,
+ "dev_id %d failed to create stream: err=%d",
+ dev_id, ret);
+ return ret;
+ };
+
+ return 0;
+}
+
+
+int __rte_experimental
+rte_compressdev_stream_free(uint8_t dev_id, void *stream)
+{
+ struct rte_compressdev *dev;
+ int ret;
+
+ dev = rte_compressdev_pmd_get_dev(dev_id);
+
+ if (dev == NULL || stream == NULL)
+ return -EINVAL;
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stream_free, -ENOTSUP);
+ ret = dev->dev_ops->stream_free(dev, stream);
+ if (ret < 0) {
+ COMPRESSDEV_LOG(ERR,
+ "dev_id %d failed to free stream: err=%d",
+ dev_id, ret);
+ return ret;
+ };
+
+ return 0;
+}
+
+
+/** Initialise rte_comp_op mempool element */
+static void
+rte_comp_op_init(struct rte_mempool *mempool,
+ __rte_unused void *opaque_arg,
+ void *_op_data,
+ __rte_unused unsigned int i)
+{
+ struct rte_comp_op *op = _op_data;
+
+ memset(_op_data, 0, mempool->elt_size);
+
+ op->status = RTE_COMP_OP_STATUS_NOT_PROCESSED;
+ op->phys_addr = rte_mem_virt2iova(_op_data);
+ op->mempool = mempool;
+}
+
+
+struct rte_mempool * __rte_experimental
+rte_comp_op_pool_create(const char *name,
+ unsigned int nb_elts, unsigned int cache_size,
+ uint16_t user_size, int socket_id)
+{
+ struct rte_comp_op_pool_private *priv;
+
+ unsigned int elt_size = sizeof(struct rte_comp_op) + user_size;
+
+ /* lookup mempool in case already allocated */
+ struct rte_mempool *mp = rte_mempool_lookup(name);
+
+ if (mp != NULL) {
+ priv = (struct rte_comp_op_pool_private *)
+ rte_mempool_get_priv(mp);
+
+ if (mp->elt_size != elt_size ||
+ mp->cache_size < cache_size ||
+ mp->size < nb_elts ||
+ priv->user_size < user_size) {
+ mp = NULL;
+ COMPRESSDEV_LOG(ERR,
+ "Mempool %s already exists but with incompatible parameters",
+ name);
+ return NULL;
+ }
+ return mp;
+ }
+
+ mp = rte_mempool_create(
+ name,
+ nb_elts,
+ elt_size,
+ cache_size,
+ sizeof(struct rte_comp_op_pool_private),
+ NULL,
+ NULL,
+ rte_comp_op_init,
+ NULL,
+ socket_id,
+ 0);
+
+ if (mp == NULL) {
+ COMPRESSDEV_LOG(ERR, "Failed to create mempool %s", name);
+ return NULL;
+ }
+
+ priv = (struct rte_comp_op_pool_private *)
+ rte_mempool_get_priv(mp);
+
+ priv->user_size = user_size;
+
+ return mp;
+}
+
+TAILQ_HEAD(compressdev_driver_list, compressdev_driver);
+
+static struct compressdev_driver_list compressdev_driver_list =
+ TAILQ_HEAD_INITIALIZER(compressdev_driver_list);
+
+int __rte_experimental
+rte_compressdev_driver_id_get(const char *name)
+{
+ struct compressdev_driver *driver;
+ const char *driver_name;
+
+ if (name == NULL) {
+ COMPRESSDEV_LOG(DEBUG, "name pointer NULL");
+ return -1;
+ }
+
+ TAILQ_FOREACH(driver, &compressdev_driver_list, next) {
+ driver_name = driver->driver->name;
+ if (strncmp(driver_name, name, strlen(driver_name)) == 0)
+ return driver->id;
+ }
+ return -1;
+}
+
+const char * __rte_experimental
+rte_compressdev_name_get(uint8_t dev_id)
+{
+ struct rte_compressdev *dev = rte_compressdev_pmd_get_dev(dev_id);
+
+ if (dev == NULL)
+ return NULL;
+
+ return dev->data->name;
+}
+
+const char * __rte_experimental
+rte_compressdev_driver_name_get(uint8_t driver_id)
+{
+ struct compressdev_driver *driver;
+
+ TAILQ_FOREACH(driver, &compressdev_driver_list, next)
+ if (driver->id == driver_id)
+ return driver->driver->name;
+ return NULL;
+}
+
+uint8_t
+rte_compressdev_allocate_driver(struct compressdev_driver *comp_drv,
+ const struct rte_driver *drv)
+{
+ comp_drv->driver = drv;
+ comp_drv->id = nb_drivers;
+
+ TAILQ_INSERT_TAIL(&compressdev_driver_list, comp_drv, next);
+
+ return nb_drivers++;
+}
+
+RTE_INIT(rte_compressdev_log);
+
+static void
+rte_compressdev_log(void)
+{
+ compressdev_logtype = rte_log_register("librte.compressdev");
+ if (compressdev_logtype >= 0)
+ rte_log_set_level(compressdev_logtype, RTE_LOG_NOTICE);
+}
new file mode 100644
@@ -0,0 +1,727 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Intel Corporation
+ */
+
+#ifndef _RTE_COMPRESSDEV_H_
+#define _RTE_COMPRESSDEV_H_
+
+/**
+ * @file rte_compressdev.h
+ *
+ * RTE Compression Device APIs
+ *
+ * Defines comp device APIs for the provisioning of compression operations.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "rte_kvargs.h"
+#include "rte_comp.h"
+#include "rte_dev.h"
+#include <rte_common.h>
+
+/* Logging Macros */
+extern int compressdev_logtype;
+#define COMPRESSDEV_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, compressdev_logtype, "%s(): "fmt "\n", \
+ __func__, ##args)
+
+#define RTE_COMPRESSDEV_DETACHED (0)
+#define RTE_COMPRESSDEV_ATTACHED (1)
+
+#define RTE_COMPRESSDEV_NAME_MAX_LEN (64)
+
+/**< Max length of name of comp PMD */
+/**
+ * A macro that points to an offset from the start
+ * of the comp operation structure (rte_comp_op)
+ *
+ * The returned pointer is cast to type t.
+ *
+ * @param c
+ * The comp operation
+ * @param o
+ * The offset from the start of the comp operation
+ * @param t
+ * The type to cast the result into
+ */
+#define rte_comp_op_ctod_offset(c, t, o) \
+ ((t)((char *)(c) + (o)))
+
+/**
+ * A macro that returns the physical address that points
+ * to an offset from the start of the comp operation
+ * (rte_comp_op).
+ *
+ * @param c
+ * The comp operation
+ * @param o
+ * The offset from the start of the comp operation
+ * to calculate address from
+ */
+#define rte_comp_op_ctophys_offset(c, o) \
+ (rte_iova_t)((c)->phys_addr + (o))
+
+/**
+ * Parameter log base 2 range description.
+ * Final value will be 2^value.
+ */
+struct rte_param_log2_range {
+ uint8_t min; /**< Minimum log2 value */
+ uint8_t max; /**< Maximum log2 value */
+ uint8_t increment;
+ /**< If a range of sizes are supported,
+ * this parameter is used to indicate
+ * increments in base 2 log byte value
+ * that are supported between the minimum and maximum
+ */
+};
+
+/** Structure used to capture a capability of a comp device */
+struct rte_compressdev_capabilities {
+ enum rte_comp_algorithm algo;
+ /* Compression algorithm */
+ uint64_t comp_feature_flags;
+ /**< Bitmask of flags for compression service features */
+ struct rte_param_log2_range window_size;
+ /**< Window size range in base two log byte values */
+};
+
+
+/** Macro used at end of comp PMD list */
+#define RTE_COMP_END_OF_CAPABILITIES_LIST() \
+ { RTE_COMP_ALGO_UNSPECIFIED }
+
+const struct rte_compressdev_capabilities * __rte_experimental
+rte_compressdev_capability_get(uint8_t dev_id,
+ enum rte_comp_algorithm algo);
+
+/**
+ * compression device supported feature flags
+ *
+ * @note New features flags should be added to the end of the list
+ *
+ * Keep these flags synchronised with rte_compressdev_get_feature_name()
+ */
+
+#define RTE_COMPDEV_FF_HW_ACCELERATED (1ULL << 0)
+/**< Operations are off-loaded to an external hardware accelerator */
+#define RTE_COMPDEV_FF_CPU_SSE (1ULL << 1)
+/**< Utilises CPU SIMD SSE instructions */
+#define RTE_COMPDEV_FF_CPU_AVX (1ULL << 2)
+/**< Utilises CPU SIMD AVX instructions */
+#define RTE_COMPDEV_FF_CPU_AVX2 (1ULL << 3)
+/**< Utilises CPU SIMD AVX2 instructions */
+#define RTE_COMPDEV_FF_CPU_AVX512 (1ULL << 4)
+/**< Utilises CPU SIMD AVX512 instructions */
+#define RTE_COMPDEV_FF_CPU_NEON (1ULL << 5)
+/**< Utilises CPU NEON instructions */
+
+/**
+ * compression service feature flags
+ *
+ * @note New features flags should be added to the end of the list
+ *
+ * Keep these flags synchronised with rte_comp_get_feature_name()
+ */
+#define RTE_COMP_FF_STATEFUL_COMPRESSION (1ULL << 0)
+/**< Stateful compression is supported */
+#define RTE_COMP_FF_STATEFUL_DECOMPRESSION (1ULL << 1)
+/**< Stateful decompression is supported */
+#define RTE_COMP_FF_MBUF_SCATTER_GATHER (1ULL << 2)
+/**< Scatter-gather mbufs are supported */
+#define RTE_COMP_FF_ADLER32_CHECKSUM (1ULL << 3)
+/**< Adler-32 Checksum is supported */
+#define RTE_COMP_FF_CRC32_CHECKSUM (1ULL << 4)
+/**< CRC32 Checksum is supported */
+#define RTE_COMP_FF_CRC32_ADLER32_CHECKSUM (1ULL << 5)
+/**< Adler-32/CRC32 Checksum is supported */
+#define RTE_COMP_FF_MULTI_PKT_CHECKSUM (1ULL << 6)
+/**< Generation of checksum across multiple stateless packets is supported */
+#define RTE_COMP_FF_NONCOMPRESSED_BLOCKS (1ULL << 7)
+/**< Creation of non-compressed blocks using RTE_COMP_LEVEL_NONE is supported */
+
+/**
+ * Get the name of a compress device feature flag.
+ *
+ * @param flag
+ * The mask describing the flag
+ *
+ * @return
+ * The name of this flag, or NULL if it's not a valid feature flag.
+ */
+const char * __rte_experimental
+rte_compressdev_get_feature_name(uint64_t flag);
+
+/**
+ * Get the name of a compress service feature flag
+ *
+ * @param flag
+ * The mask describing the flag
+ *
+ * @return
+ * The name of this flag, or NULL if it's not a valid feature flag.
+ */
+const char * __rte_experimental
+rte_comp_get_feature_name(uint64_t flag);
+
+/** comp device information */
+struct rte_compressdev_info {
+ const char *driver_name; /**< Driver name. */
+ uint8_t driver_id; /**< Driver identifier */
+ uint64_t feature_flags; /**< Feature flags */
+ const struct rte_compressdev_capabilities *capabilities;
+ /**< Array of devices supported capabilities */
+ unsigned int max_nb_queue_pairs;
+ /**< Maximum number of queues pairs supported by device. */
+};
+
+
+/** comp device statistics */
+struct rte_compressdev_stats {
+ uint64_t enqueued_count;
+ /**< Count of all operations enqueued */
+ uint64_t dequeued_count;
+ /**< Count of all operations dequeued */
+
+ uint64_t enqueue_err_count;
+ /**< Total error count on operations enqueued */
+ uint64_t dequeue_err_count;
+ /**< Total error count on operations dequeued */
+};
+
+
+/**
+ * Get the device identifier for the named compress device.
+ *
+ * @param name
+ * Device name to select the device structure
+ * @return
+ * - Returns compress device identifier on success.
+ * - Return -1 on failure to find named compress device.
+ */
+int __rte_experimental
+rte_compressdev_get_dev_id(const char *name);
+
+/**
+ * Get the compress device name given a device identifier.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @return
+ * - Returns compress device name.
+ * - Returns NULL if compress device is not present.
+ */
+const char * __rte_experimental
+rte_compressdev_name_get(uint8_t dev_id);
+
+/**
+ * Get the total number of compress devices that have been successfully
+ * initialised.
+ *
+ * @return
+ * - The total number of usable compress devices.
+ */
+uint8_t __rte_experimental
+rte_compressdev_count(void);
+
+/**
+ * Get number of comp device defined type.
+ *
+ * @param driver_id
+ * Driver identifier
+ * @return
+ * Returns number of comp device.
+ */
+uint8_t __rte_experimental
+rte_compressdev_device_count_by_driver(uint8_t driver_id);
+
+/**
+ * Get number and identifiers of attached comp devices that
+ * use the same compress driver.
+ *
+ * @param driver_name
+ * Driver name
+ * @param devices
+ * Output devices identifiers
+ * @param nb_devices
+ * Maximal number of devices
+ *
+ * @return
+ * Returns number of attached compress devices.
+ */
+uint8_t __rte_experimental
+rte_compressdev_devices_get(const char *driver_name, uint8_t *devices,
+ uint8_t nb_devices);
+/*
+ * Return the NUMA socket to which a device is connected.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @return
+ * The NUMA socket id to which the device is connected or
+ * a default of zero if the socket could not be determined.
+ * -1 if returned is the dev_id value is out of range.
+ */
+int __rte_experimental
+rte_compressdev_socket_id(uint8_t dev_id);
+
+/** Compress device configuration structure */
+struct rte_compressdev_config {
+ int socket_id;
+ /**< Socket on which to allocate resources */
+ uint16_t nb_queue_pairs;
+ /**< Total number of queue pairs to configure on a device */
+ uint16_t max_nb_priv_xforms;
+ /**< Max number of private_xforms which will be created on the device */
+ uint16_t max_nb_streams;
+ /**< Max number of streams which will be created on the device */
+};
+
+/**
+ * Configure a device.
+ *
+ * This function must be invoked first before any other function in the
+ * API. This function can also be re-invoked when a device is in the
+ * stopped state.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @param config
+ * The compress device configuration
+ * @return
+ * - 0: Success, device configured.
+ * - <0: Error code returned by the driver configuration function.
+ */
+int __rte_experimental
+rte_compressdev_configure(uint8_t dev_id,
+ struct rte_compressdev_config *config);
+
+/**
+ * Start a device.
+ *
+ * The device start step is called after configuring the device and setting up
+ * its queue_pairs.
+ * On success, data-path functions exported by the API (enqueue/dequeue, etc)
+ * can be invoked.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @return
+ * - 0: Success, device started.
+ * - <0: Error code of the driver device start function.
+ */
+int __rte_experimental
+rte_compressdev_start(uint8_t dev_id);
+
+/**
+ * Stop a device. The device can be restarted with a call to
+ * rte_compressdev_start()
+ *
+ * @param dev_id
+ * Compress device identifier
+ */
+void __rte_experimental
+rte_compressdev_stop(uint8_t dev_id);
+
+/**
+ * Close an device. The device cannot be restarted!
+ *
+ * @param dev_id
+ * Compress device identifier
+ *
+ * @return
+ * - 0 on successfully closing device
+ * - <0 on failure to close device
+ */
+int __rte_experimental
+rte_compressdev_close(uint8_t dev_id);
+
+/**
+ * Allocate and set up a receive queue pair for a device.
+ * This should only be called when the device is stopped.
+ *
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @param queue_pair_id
+ * The index of the queue pairs to set up. The
+ * value must be in the range [0, nb_queue_pair - 1]
+ * previously supplied to rte_compressdev_configure()
+ * @param max_inflight_ops
+ * Max number of ops which the qp will have to
+ * accommodate simultaneously
+ * @param socket_id
+ * The *socket_id* argument is the socket identifier
+ * in case of NUMA. The value can be *SOCKET_ID_ANY*
+ * if there is no NUMA constraint for the DMA memory
+ * allocated for the receive queue pair
+ * @return
+ * - 0: Success, queue pair correctly set up.
+ * - <0: Queue pair configuration failed
+ */
+int __rte_experimental
+rte_compressdev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
+ uint32_t max_inflight_ops, int socket_id);
+
+/**
+ * Get the number of queue pairs on a specific comp device
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @return
+ * - The number of configured queue pairs.
+ */
+uint16_t __rte_experimental
+rte_compressdev_queue_pair_count(uint8_t dev_id);
+
+
+/**
+ * Retrieve the general I/O statistics of a device.
+ *
+ * @param dev_id
+ * The identifier of the device
+ * @param stats
+ * A pointer to a structure of type
+ * *rte_compressdev_stats* to be filled with the
+ * values of device counters
+ * @return
+ * - Zero if successful.
+ * - Non-zero otherwise.
+ */
+int __rte_experimental
+rte_compressdev_stats_get(uint8_t dev_id, struct rte_compressdev_stats *stats);
+
+/**
+ * Reset the general I/O statistics of a device.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ */
+void __rte_experimental
+rte_compressdev_stats_reset(uint8_t dev_id);
+
+/**
+ * Retrieve the contextual information of a device.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @param dev_info
+ * A pointer to a structure of type *rte_compressdev_info*
+ * to be filled with the contextual information of the device
+ *
+ * @note The capabilities field of dev_info is set to point to the first
+ * element of an array of struct rte_compressdev_capabilities.
+ * The element after the last valid element has it's op field set to
+ * RTE_COMP_ALGO_LIST_END.
+ */
+void __rte_experimental
+rte_compressdev_info_get(uint8_t dev_id, struct rte_compressdev_info *dev_info);
+
+
+typedef uint16_t (*compress_dequeue_pkt_burst_t)(void *qp,
+ struct rte_comp_op **ops, uint16_t nb_ops);
+/**< Dequeue processed packets from queue pair of a device. */
+
+typedef uint16_t (*compress_enqueue_pkt_burst_t)(void *qp,
+ struct rte_comp_op **ops, uint16_t nb_ops);
+/**< Enqueue packets for processing on queue pair of a device. */
+
+
+/** The data structure associated with each comp device. */
+struct rte_compressdev {
+ compress_dequeue_pkt_burst_t dequeue_burst;
+ /**< Pointer to PMD receive function */
+ compress_enqueue_pkt_burst_t enqueue_burst;
+ /**< Pointer to PMD transmit function */
+
+ struct rte_compressdev_data *data;
+ /**< Pointer to device data */
+ struct rte_compressdev_ops *dev_ops;
+ /**< Functions exported by PMD */
+ uint64_t feature_flags;
+ /**< Supported features */
+ struct rte_device *device;
+ /**< Backing device */
+
+ uint8_t driver_id;
+ /**< comp driver identifier*/
+
+ __extension__
+ uint8_t attached : 1;
+ /**< Flag indicating the device is attached */
+} __rte_cache_aligned;
+
+
+/**
+ *
+ * The data part, with no function pointers, associated with each device.
+ *
+ * This structure is safe to place in shared memory to be common among
+ * different processes in a multi-process configuration.
+ */
+struct rte_compressdev_data {
+ uint8_t dev_id;
+ /**< Compress device identifier */
+ uint8_t socket_id;
+ /**< Socket identifier where memory is allocated */
+ char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+ /**< Unique identifier name */
+
+ __extension__
+ uint8_t dev_started : 1;
+ /**< Device state: STARTED(1)/STOPPED(0) */
+
+ void **queue_pairs;
+ /**< Array of pointers to queue pairs. */
+ uint16_t nb_queue_pairs;
+ /**< Number of device queue pairs */
+
+ void *dev_private;
+ /**< PMD-specific private data */
+} __rte_cache_aligned;
+
+struct rte_compressdev *rte_compressdevs;
+/**
+ *
+ * Dequeue a burst of processed compression operations from a queue on the comp
+ * device. The dequeued operation are stored in *rte_comp_op* structures
+ * whose pointers are supplied in the *ops* array.
+ *
+ * The rte_compressdev_dequeue_burst() function returns the number of ops
+ * actually dequeued, which is the number of *rte_comp_op* data structures
+ * effectively supplied into the *ops* array.
+ *
+ * A return value equal to *nb_ops* indicates that the queue contained
+ * at least *nb_ops* operations, and this is likely to signify that other
+ * processed operations remain in the devices output queue. Applications
+ * implementing a "retrieve as many processed operations as possible" policy
+ * can check this specific case and keep invoking the
+ * rte_compressdev_dequeue_burst() function until a value less than
+ * *nb_ops* is returned.
+ *
+ * The rte_compressdev_dequeue_burst() function does not provide any error
+ * notification to avoid the corresponding overhead.
+ *
+ * @note: operation ordering is not maintained within the queue pair.
+ *
+ * @note: In case op status = OUT_OF_SPACE_TERMINATED, op.consumed=0 and the
+ * op must be resubmitted with the same input data and a larger output buffer.
+ * op.produced is usually 0, but in decompression cases a PMD may return > 0
+ * and the application may find it useful to inspect that data.
+ * This status is only returned on STATELESS ops.
+ *
+ * @note: In case op status = OUT_OF_SPACE_RECOVERABLE, op.produced can be used
+ * and next op in stream should continue on from op.consumed+1 with a fresh
+ * output buffer.
+ * Consumed=0, produced=0 is an unusual but allowed case. There may be useful
+ * state/history stored in the PMD, even though no output was produced yet.
+ *
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @param qp_id
+ * The index of the queue pair from which to retrieve
+ * processed operations. The value must be in the range
+ * [0, nb_queue_pair - 1] previously supplied to
+ * rte_compressdev_configure()
+ * @param ops
+ * The address of an array of pointers to
+ * *rte_comp_op* structures that must be
+ * large enough to store *nb_ops* pointers in it
+ * @param nb_ops
+ * The maximum number of operations to dequeue
+ * @return
+ * - The number of operations actually dequeued, which is the number
+ * of pointers to *rte_comp_op* structures effectively supplied to the
+ * *ops* array.
+ */
+static inline uint16_t
+rte_compressdev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
+ struct rte_comp_op **ops, uint16_t nb_ops)
+{
+ struct rte_compressdev *dev = &rte_compressdevs[dev_id];
+
+ nb_ops = (*dev->dequeue_burst)
+ (dev->data->queue_pairs[qp_id], ops, nb_ops);
+
+ return nb_ops;
+}
+
+/**
+ * Enqueue a burst of operations for processing on a compression device.
+ *
+ * The rte_compressdev_enqueue_burst() function is invoked to place
+ * comp operations on the queue *qp_id* of the device designated by
+ * its *dev_id*.
+ *
+ * The *nb_ops* parameter is the number of operations to process which are
+ * supplied in the *ops* array of *rte_comp_op* structures.
+ *
+ * The rte_compressdev_enqueue_burst() function returns the number of
+ * operations it actually enqueued for processing. A return value equal to
+ * *nb_ops* means that all packets have been enqueued.
+ *
+ * @note All compression operations are Out-of-place (OOP) operations,
+ * as the size of the output data is different to the size of the input data.
+ *
+ * @note The flush flag only applies to operations which return SUCCESS.
+ * In OUT_OF_SPACE cases whether STATEFUL or STATELESS, data in dest buffer
+ * is as if flush flag was FLUSH_NONE.
+ * @note flush flag only applies in compression direction. It has no meaning
+ * for decompression.
+ * @note: operation ordering is not maintained within the queue pair.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @param qp_id
+ * The index of the queue pair on which operations
+ * are to be enqueued for processing. The value
+ * must be in the range [0, nb_queue_pairs - 1]
+ * previously supplied to *rte_compressdev_configure*
+ * @param ops
+ * The address of an array of *nb_ops* pointers
+ * to *rte_comp_op* structures which contain
+ * the operations to be processed
+ * @param nb_ops
+ * The number of operations to process
+ * @return
+ * The number of operations actually enqueued on the device. The return
+ * value can be less than the value of the *nb_ops* parameter when the
+ * comp devices queue is full or if invalid parameters are specified in
+ * a *rte_comp_op*.
+ */
+static inline uint16_t
+rte_compressdev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
+ struct rte_comp_op **ops, uint16_t nb_ops)
+{
+ struct rte_compressdev *dev = &rte_compressdevs[dev_id];
+
+ return (*dev->enqueue_burst)(
+ dev->data->queue_pairs[qp_id], ops, nb_ops);
+}
+
+
+/**
+ * This should alloc a stream from the device's mempool and initialise it.
+ * The application should call this API when setting up for the stateful
+ * processing of a set of data on a device. The API can be called multiple
+ * times to set up a stream for each data set. The handle returned is only for
+ * use with ops of op_type STATEFUL and must be passed to the PMD
+ * with every op in the data stream
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @param xform
+ * xform data
+ * @param stream
+ * Pointer to where PMD's private stream handle should be stored
+ *
+ * @return
+ * - 0 if successful and valid stream handle
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support STATEFUL operations.
+ * - Returns -ENOTSUP if comp device does not support the comp transform.
+ * - Returns -ENOMEM if the private stream could not be allocated.
+ *
+ */
+int __rte_experimental
+rte_compressdev_stream_create(uint8_t dev_id,
+ const struct rte_comp_xform *xform,
+ void **stream);
+
+/**
+ * This should clear the stream and return it to the device's mempool.
+ *
+ * @param dev_id
+ * Compress device identifier
+ *
+ * @param stream
+ * PMD's private stream data
+ *
+ * @return
+ * - 0 if successful
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support STATEFUL operations.
+ * - Returns -EBUSY if can't free stream as there are inflight operations
+ */
+int __rte_experimental
+rte_compressdev_stream_free(uint8_t dev_id, void *stream);
+
+/**
+ * This should alloc a private_xform from the device's mempool and initialise
+ * it. The application should call this API when setting up for stateless
+ * processing on a device. If it returns non-shareable, then the appl cannot
+ * share this handle with multiple in-flight ops and should call this API again
+ * to get a separate handle for every in-flight op.
+ * The handle returned is only valid for use with ops of op_type STATELESS.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @param xform
+ * xform data
+ * @param private_xform
+ * Pointer to where PMD's private_xform handle should be stored
+ *
+ * @return
+ * - if successful returns RTE_COMP_PRIV_XFORM_SHAREABLE/NOT_SHAREABLE
+ * and valid private_xform handle
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support the comp transform.
+ * - Returns -ENOMEM if the private_xform could not be allocated.
+ */
+int __rte_experimental
+rte_compressdev_private_xform_create(uint8_t dev_id,
+ const struct rte_comp_xform *xform,
+ void **private_xform);
+
+/**
+ * This should clear the private_xform and return it to the device's mempool.
+ *
+ * @param dev_id
+ * Compress device identifier
+ *
+ * @param private_xform
+ * PMD's private_xform data
+ *
+ * @return
+ * - 0 if successful
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -EBUSY if can't free private_xform due to inflight operations
+ */
+int __rte_experimental
+rte_compressdev_private_xform_free(uint8_t dev_id, void *private_xform);
+
+/**
+ * Provide driver identifier.
+ *
+ * @param name
+ * Compress driver name
+ * @return
+ * The driver type identifier or -1 if no driver found
+ */
+int __rte_experimental
+rte_compressdev_driver_id_get(const char *name);
+
+/**
+ * Provide driver name.
+ *
+ * @param driver_id
+ * The driver identifier
+ * @return
+ * The driver name or null if no driver found
+ */
+const char * __rte_experimental
+rte_compressdev_driver_name_get(uint8_t driver_id);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_COMPRESSDEV_H_ */
new file mode 100644
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Intel Corporation
+ */
+
+#include <rte_malloc.h>
+
+#include "rte_compressdev_pmd.h"
+
+int compressdev_logtype;
+
+/**
+ * Parse name from argument
+ */
+static int
+rte_compressdev_pmd_parse_name_arg(const char *key __rte_unused,
+ const char *value, void *extra_args)
+{
+ struct rte_compressdev_pmd_init_params *params = extra_args;
+ int n;
+
+ n = snprintf(params->name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s", value);
+ if (n >= RTE_COMPRESSDEV_NAME_MAX_LEN)
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * Parse unsigned integer from argument
+ */
+static int
+rte_compressdev_pmd_parse_uint_arg(const char *key __rte_unused,
+ const char *value, void *extra_args)
+{
+ int i;
+ char *end;
+
+ errno = 0;
+ i = strtol(value, &end, 10);
+ if (*end != 0 || errno != 0 || i < 0)
+ return -EINVAL;
+
+ *((uint32_t *)extra_args) = i;
+ return 0;
+}
+
+int
+rte_compressdev_pmd_parse_input_args(
+ struct rte_compressdev_pmd_init_params *params,
+ const char *args)
+{
+ struct rte_kvargs *kvlist = NULL;
+ int ret = 0;
+
+ if (params == NULL)
+ return -EINVAL;
+
+ if (args) {
+ kvlist = rte_kvargs_parse(args, compressdev_pmd_valid_params);
+ if (kvlist == NULL)
+ return -EINVAL;
+
+ ret = rte_kvargs_process(kvlist,
+ RTE_COMPRESSDEV_PMD_SOCKET_ID_ARG,
+ &rte_compressdev_pmd_parse_uint_arg,
+ ¶ms->socket_id);
+ if (ret < 0)
+ goto free_kvlist;
+
+ ret = rte_kvargs_process(kvlist,
+ RTE_COMPRESSDEV_PMD_NAME_ARG,
+ &rte_compressdev_pmd_parse_name_arg,
+ params);
+ if (ret < 0)
+ goto free_kvlist;
+ }
+
+free_kvlist:
+ rte_kvargs_free(kvlist);
+ return ret;
+}
+
+struct rte_compressdev * __rte_experimental
+rte_compressdev_pmd_create(const char *name,
+ struct rte_device *device,
+ struct rte_compressdev_pmd_init_params *params)
+{
+ struct rte_compressdev *compressdev;
+
+ if (params->name[0] != '\0') {
+ COMPRESSDEV_LOG(INFO, "[%s] User specified device name = %s\n",
+ device->driver->name, params->name);
+ name = params->name;
+ }
+
+ COMPRESSDEV_LOG(INFO, "[%s] - Creating compressdev %s\n",
+ device->driver->name, name);
+
+ COMPRESSDEV_LOG(INFO,
+ "[%s] - Init parameters - name: %s, socket id: %d",
+ device->driver->name, name,
+ params->socket_id);
+
+ /* allocate device structure */
+ compressdev = rte_compressdev_pmd_allocate(name, params->socket_id);
+ if (compressdev == NULL) {
+ COMPRESSDEV_LOG(ERR, "[%s] Failed to allocate comp device %s",
+ device->driver->name, name);
+ return NULL;
+ }
+
+ /* allocate private device structure */
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ compressdev->data->dev_private =
+ rte_zmalloc_socket("compressdev device private",
+ params->private_data_size,
+ RTE_CACHE_LINE_SIZE,
+ params->socket_id);
+
+ if (compressdev->data->dev_private == NULL) {
+ COMPRESSDEV_LOG(ERR,
+ "[%s] Cannot allocate memory for compressdev %s private data",
+ device->driver->name, name);
+
+ rte_compressdev_pmd_release_device(compressdev);
+ return NULL;
+ }
+ }
+
+ compressdev->device = device;
+
+ return compressdev;
+}
+
+int __rte_experimental
+rte_compressdev_pmd_destroy(struct rte_compressdev *compressdev)
+{
+ int retval;
+
+ COMPRESSDEV_LOG(INFO, "[%s] Closing comp device %s",
+ compressdev->device->driver->name,
+ compressdev->device->name);
+
+ /* free comp device */
+ retval = rte_compressdev_pmd_release_device(compressdev);
+ if (retval)
+ return retval;
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+ rte_free(compressdev->data->dev_private);
+
+ compressdev->device = NULL;
+ compressdev->data = NULL;
+
+ return 0;
+}
new file mode 100644
@@ -0,0 +1,450 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Intel Corporation
+ */
+
+#ifndef _RTE_COMPRESSDEV_PMD_H_
+#define _RTE_COMPRESSDEV_PMD_H_
+
+/** @file
+ * RTE comp PMD APIs
+ *
+ * @note
+ * These APIs are for comp PMDs only and user applications should not call
+ * them directly.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <string.h>
+
+#include <rte_dev.h>
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_mempool.h>
+#include <rte_log.h>
+#include <rte_common.h>
+
+#include "rte_comp.h"
+#include "rte_compressdev.h"
+
+#define RTE_COMPRESSDEV_PMD_NAME_ARG ("name")
+#define RTE_COMPRESSDEV_PMD_SOCKET_ID_ARG ("socket_id")
+
+static const char * const compressdev_pmd_valid_params[] = {
+ RTE_COMPRESSDEV_PMD_NAME_ARG,
+ RTE_COMPRESSDEV_PMD_SOCKET_ID_ARG
+};
+
+/**
+ * @internal
+ * Initialisation parameters for comp devices
+ */
+struct rte_compressdev_pmd_init_params {
+ char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+ size_t private_data_size;
+ int socket_id;
+};
+
+/** Global structure used for maintaining state of allocated comp devices */
+struct rte_compressdev_global {
+ struct rte_compressdev *devs; /**< Device information array */
+ struct rte_compressdev_data *data[RTE_COMPRESS_MAX_DEVS];
+ /**< Device private data */
+ uint8_t nb_devs; /**< Number of devices found */
+ uint8_t max_devs; /**< Max number of devices */
+};
+
+/* compressdev driver, containing the driver identifier */
+struct compressdev_driver {
+ TAILQ_ENTRY(compressdev_driver) next; /**< Next in list. */
+ const struct rte_driver *driver;
+ uint8_t id;
+};
+
+/** Pointer to global array of comp devices */
+extern struct rte_compressdev *rte_compressdevs;
+/** Pointer to global comp devices data structure */
+extern struct rte_compressdev_global *rte_compressdev_globals;
+
+/**
+ * Get the rte_compressdev structure device pointer for the device. Assumes a
+ * valid device index.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @return
+ * - The rte_compressdev structure pointer for the given device identifier.
+ */
+struct rte_compressdev * __rte_experimental
+rte_compressdev_pmd_get_dev(uint8_t dev_id);
+
+/**
+ * Get the rte_compressdev structure device pointer for the named device.
+ *
+ * @param name
+ * Compress device name
+ * @return
+ * - The rte_compressdev structure pointer for the given device identifier.
+ */
+struct rte_compressdev * __rte_experimental
+rte_compressdev_pmd_get_named_dev(const char *name);
+
+/**
+ * Validate if the comp device index is valid attached comp device.
+ *
+ * @param dev_id
+ * Compress device identifier
+ * @return
+ * - If the device index is valid (1) or not (0).
+ */
+unsigned int __rte_experimental
+rte_compressdev_pmd_is_valid_dev(uint8_t dev_id);
+
+/**
+ * Definitions of all functions exported by a driver through the
+ * the generic structure of type *comp_dev_ops* supplied in the
+ * *rte_compressdev* structure associated with a device.
+ */
+
+/**
+ * Function used to configure device.
+ *
+ * @param dev
+ * Compress device
+ * @param config
+ * Compress device configurations
+ * @return
+ * Returns 0 on success
+ */
+typedef int (*compressdev_configure_t)(struct rte_compressdev *dev,
+ struct rte_compressdev_config *config);
+
+/**
+ * Function used to start a configured device.
+ *
+ * @param dev
+ * Compress device
+ * @return
+ * Returns 0 on success
+ */
+typedef int (*compressdev_start_t)(struct rte_compressdev *dev);
+
+/**
+ * Function used to stop a configured device.
+ *
+ * @param dev
+ * Compress device
+ */
+typedef void (*compressdev_stop_t)(struct rte_compressdev *dev);
+
+/**
+ * Function used to close a configured device.
+ *
+ * @param dev
+ * Compress device
+ * @return
+ * - 0 on success.
+ * - EAGAIN if can't close as device is busy
+ */
+typedef int (*compressdev_close_t)(struct rte_compressdev *dev);
+
+
+/**
+ * Function used to get statistics of a device.
+ *
+ * @param dev
+ * Compress device
+ * @param stats
+ * Compress device stats to populate
+ */
+typedef void (*compressdev_stats_get_t)(struct rte_compressdev *dev,
+ struct rte_compressdev_stats *stats);
+
+
+/**
+ * Function used to reset statistics of a device.
+ *
+ * @param dev
+ * Compress device
+ */
+typedef void (*compressdev_stats_reset_t)(struct rte_compressdev *dev);
+
+
+/**
+ * Function used to get specific information of a device.
+ *
+ * @param dev
+ * Compress device
+ */
+typedef void (*compressdev_info_get_t)(struct rte_compressdev *dev,
+ struct rte_compressdev_info *dev_info);
+
+/**
+ * Setup a queue pair for a device.
+ *
+ * @param dev
+ * Compress device
+ * @param qp_id
+ * Queue pair identifier
+ * @param max_inflight_ops
+ * Max inflight ops which qp must accommodate
+ * @param socket_id
+ * Socket identifier
+ * @return
+ * Returns 0 on success.
+ */
+typedef int (*compressdev_queue_pair_setup_t)(struct rte_compressdev *dev,
+ uint16_t qp_id, uint32_t max_inflight_ops, int socket_id);
+
+/**
+ * Release memory resources allocated by given queue pair.
+ *
+ * @param dev
+ * Compress device
+ * @param qp_id
+ * Queue pair identifier
+ * @return
+ * - 0 on success.
+ * - EAGAIN if can't close as device is busy
+ */
+typedef int (*compressdev_queue_pair_release_t)(struct rte_compressdev *dev,
+ uint16_t qp_id);
+
+/**
+ * Get number of available queue pairs of a device.
+ *
+ * @param dev
+ * Compress device
+ * @return
+ * Returns number of queue pairs on success.
+ */
+typedef uint32_t (*compressdev_queue_pair_count_t)(struct rte_compressdev *dev);
+
+
+/**
+ * Create driver private stream data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param xform
+ * xform data
+ * @param stream
+ * ptr where handle of pmd's private stream data should be stored
+ * @return
+ * - Returns 0 if private stream structure has been created successfully.
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support STATEFUL operations.
+ * - Returns -ENOTSUP if comp device does not support the comp transform.
+ * - Returns -ENOMEM if the private stream could not be allocated.
+ */
+typedef int (*compressdev_stream_create_t)(struct rte_compressdev *dev,
+ const struct rte_comp_xform *xform, void **stream);
+
+/**
+ * Free driver private stream data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param stream
+ * handle of pmd's private stream data
+ * @return
+ * - 0 if successful
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support STATEFUL operations.
+ * - Returns -EBUSY if can't free stream as there are inflight operations
+ */
+typedef int (*compressdev_stream_free_t)(struct rte_compressdev *dev,
+ void *stream);
+
+/**
+ * Create driver private_xform data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param xform
+ * xform data
+ * @param private_xform
+ * ptr where handle of pmd's private_xform data should be stored
+ * @return
+ * - if successful returns RTE_COMP_PRIV_XFORM_SHAREABLE/NOT_SHAREABLE
+ * and valid private_xform handle
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support the comp transform.
+ * - Returns -ENOMEM if the private_xform could not be allocated.
+ */
+typedef int (*compressdev_private_xform_create_t)(struct rte_compressdev *dev,
+ const struct rte_comp_xform *xform, void **private_xform);
+
+/**
+ * Free driver private_xform data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param private_xform
+ * handle of pmd's private_xform data
+ * @return
+ * - 0 if successful
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -EBUSY if can't free private_xform due to inflight operations
+ */
+typedef int (*compressdev_private_xform_free_t)(struct rte_compressdev *dev,
+ void *private_xform);
+
+/** comp device operations function pointer table */
+struct rte_compressdev_ops {
+ compressdev_configure_t dev_configure; /**< Configure device. */
+ compressdev_start_t dev_start; /**< Start device. */
+ compressdev_stop_t dev_stop; /**< Stop device. */
+ compressdev_close_t dev_close; /**< Close device. */
+
+ compressdev_info_get_t dev_infos_get; /**< Get device info. */
+
+ compressdev_stats_get_t stats_get;
+ /**< Get device statistics. */
+ compressdev_stats_reset_t stats_reset;
+ /**< Reset device statistics. */
+
+ compressdev_queue_pair_setup_t queue_pair_setup;
+ /**< Set up a device queue pair. */
+ compressdev_queue_pair_release_t queue_pair_release;
+ /**< Release a queue pair. */
+
+ compressdev_stream_create_t stream_create;
+ /**< Create a comp stream and initialise its private data. */
+ compressdev_stream_free_t stream_free;
+ /**< Free a comp stream's private data. */
+
+ compressdev_private_xform_create_t private_xform_create;
+ /**< Create a comp private_xform and initialise its private data. */
+ compressdev_private_xform_free_t private_xform_free;
+ /**< Free a comp private_xform's data. */
+};
+
+
+/**
+ * @internal
+ *
+ * Function for internal use by dummy drivers primarily, e.g. ring-based
+ * driver.
+ * Allocates a new compressdev slot for an comp device and returns the pointer
+ * to that slot for the driver to use.
+ *
+ * @param name
+ * Unique identifier name for each device
+ * @param socket_id
+ * Socket to allocate resources on
+ * @return
+ * - Slot in the rte_dev_devices array for a new device;
+ */
+struct rte_compressdev * __rte_experimental
+rte_compressdev_pmd_allocate(const char *name, int socket_id);
+
+/**
+ * @internal
+ *
+ * Function for internal use by dummy drivers primarily, e.g. ring-based
+ * driver.
+ * Release the specified compressdev device.
+ *
+ * @param dev
+ * Compress device
+ * @return
+ * - 0 on success, negative on error
+ */
+int __rte_experimental
+rte_compressdev_pmd_release_device(struct rte_compressdev *dev);
+
+
+/**
+ * @internal
+ *
+ * PMD assist function to parse initialisation arguments for comp driver
+ * when creating a new comp PMD device instance.
+ *
+ * PMD driver should set default values for that PMD before calling function,
+ * these default values will be over-written with successfully parsed values
+ * from args string.
+ *
+ * @param params
+ * Parsed PMD initialisation parameters
+ * @param args
+ * Input argument string to parse
+ * @return
+ * - 0 on success
+ * - errno on failure
+ */
+int __rte_experimental
+rte_compressdev_pmd_parse_input_args(
+ struct rte_compressdev_pmd_init_params *params,
+ const char *args);
+
+/**
+ * @internal
+ *
+ * PMD assist function to provide boiler plate code for comp driver to create
+ * and allocate resources for a new comp PMD device instance.
+ *
+ * @param name
+ * Compress device name
+ * @param device
+ * Base device instance
+ * @param params
+ * PMD initialisation parameters
+ * @return
+ * - comp device instance on success
+ * - NULL on creation failure
+ */
+struct rte_compressdev * __rte_experimental
+rte_compressdev_pmd_create(const char *name,
+ struct rte_device *device,
+ struct rte_compressdev_pmd_init_params *params);
+
+/**
+ * @internal
+ *
+ * PMD assist function to provide boiler plate code for comp driver to
+ * destroy and free resources associated with a comp PMD device instance.
+ *
+ * @param dev
+ * Compress device
+ * @return
+ * - 0 on success
+ * - errno on failure
+ */
+int __rte_experimental
+rte_compressdev_pmd_destroy(struct rte_compressdev *dev);
+
+
+/**
+ * @internal
+ * Allocate compressdev driver.
+ *
+ * @param comp_drv
+ * Compressdev driver
+ * @param drv
+ * Rte_driver
+ * @return
+ * The driver type identifier
+ */
+uint8_t __rte_experimental
+rte_compressdev_allocate_driver(struct compressdev_driver *comp_drv,
+ const struct rte_driver *drv);
+
+
+#define RTE_PMD_REGISTER_COMPRESSDEV_DRIVER(comp_drv, drv, driver_id)\
+RTE_INIT(init_ ##driver_id);\
+static void init_ ##driver_id(void)\
+{\
+ driver_id = rte_compressdev_allocate_driver(&comp_drv, &(drv).driver);\
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_COMPRESSDEV_PMD_H_ */
new file mode 100644
@@ -0,0 +1,43 @@
+EXPERIMENTAL {
+ global:
+
+ rte_compressdevs;
+ rte_compressdev_allocate_driver;
+ rte_compressdev_callback_register;
+ rte_compressdev_callback_unregister;
+ rte_compressdev_close;
+ rte_compressdev_configure;
+ rte_compressdev_count;
+ rte_compressdev_device_count_by_driver;
+ rte_compressdev_devices_get;
+ rte_compressdev_driver_id_get;
+ rte_compressdev_driver_name_get;
+ rte_compressdev_get_dev_id;
+ rte_compressdev_get_feature_name;
+ rte_compressdev_info_get;
+ rte_compressdev_name_get;
+ rte_compressdev_pmd_allocate;
+ rte_compressdev_pmd_callback_process;
+ rte_compressdev_pmd_create;
+ rte_compressdev_pmd_destroy;
+ rte_compressdev_pmd_get_dev;
+ rte_compressdev_pmd_get_named_dev;
+ rte_compressdev_pmd_is_valid_dev;
+ rte_compressdev_pmd_parse_input_args;
+ rte_compressdev_pmd_release_device;
+ rte_compressdev_private_xform_create;
+ rte_compressdev_private_xform_free;
+ rte_compressdev_queue_pair_count;
+ rte_compressdev_queue_pair_setup;
+ rte_compressdev_socket_id;
+ rte_compressdev_start;
+ rte_compressdev_stats_get;
+ rte_compressdev_stats_reset;
+ rte_compressdev_stop;
+ rte_compressdev_stream_create;
+ rte_compressdev_stream_free;
+ rte_comp_get_feature_name;
+ rte_comp_op_pool_create;
+
+ local: *;
+};
@@ -14,7 +14,7 @@ libraries = [ 'compat', # just a header, used for versioning
'hash', # efd depends on this
'kvargs', # cryptodev depends on this
'acl', 'bbdev', 'bitratestats', 'cfgfile',
- 'cmdline', 'cryptodev',
+ 'cmdline', 'compressdev', 'cryptodev',
'distributor', 'efd', 'eventdev',
'gro', 'gso', 'ip_frag', 'jobstats',
'kni', 'latencystats', 'lpm', 'member',
@@ -94,6 +94,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_MBUF) += -lrte_mbuf
_LDLIBS-$(CONFIG_RTE_LIBRTE_NET) += -lrte_net
_LDLIBS-$(CONFIG_RTE_LIBRTE_ETHER) += -lrte_ethdev
_LDLIBS-$(CONFIG_RTE_LIBRTE_BBDEV) += -lrte_bbdev
+_LDLIBS-$(CONFIG_RTE_LIBRTE_COMPRESSDEV) += -lrte_compressdev
_LDLIBS-$(CONFIG_RTE_LIBRTE_CRYPTODEV) += -lrte_cryptodev
_LDLIBS-$(CONFIG_RTE_LIBRTE_SECURITY) += -lrte_security
_LDLIBS-$(CONFIG_RTE_LIBRTE_EVENTDEV) += -lrte_eventdev