/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2015-2018 Intel Corporation
+ * Copyright(c) 2015-2019 Intel Corporation
*/
+#include <rte_malloc.h>
+
+#include "qat_comp.h"
#include "qat_comp_pmd.h"
+
+#define QAT_PMD_COMP_SGL_DEF_SEGMENTS 16
+
+struct stream_create_info {
+ struct qat_comp_dev_private *comp_dev;
+ int socket_id;
+ int error;
+};
+
+static const struct rte_compressdev_capabilities qat_comp_gen_capabilities[] = {
+ {/* COMPRESSION - deflate */
+ .algo = RTE_COMP_ALGO_DEFLATE,
+ .comp_feature_flags = RTE_COMP_FF_MULTI_PKT_CHECKSUM |
+ RTE_COMP_FF_CRC32_CHECKSUM |
+ RTE_COMP_FF_ADLER32_CHECKSUM |
+ RTE_COMP_FF_CRC32_ADLER32_CHECKSUM |
+ RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
+ RTE_COMP_FF_HUFFMAN_FIXED |
+ RTE_COMP_FF_HUFFMAN_DYNAMIC |
+ RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
+ RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
+ RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
+ RTE_COMP_FF_STATEFUL_DECOMPRESSION,
+ .window_size = {.min = 15, .max = 15, .increment = 0} },
+ {RTE_COMP_ALGO_LIST_END, 0, {0, 0, 0} } };
+
+static void
+qat_comp_stats_get(struct rte_compressdev *dev,
+ struct rte_compressdev_stats *stats)
+{
+ struct qat_common_stats qat_stats = {0};
+ struct qat_comp_dev_private *qat_priv;
+
+ if (stats == NULL || dev == NULL) {
+ QAT_LOG(ERR, "invalid ptr: stats %p, dev %p", stats, dev);
+ return;
+ }
+ qat_priv = dev->data->dev_private;
+
+ qat_stats_get(qat_priv->qat_dev, &qat_stats, QAT_SERVICE_COMPRESSION);
+ stats->enqueued_count = qat_stats.enqueued_count;
+ stats->dequeued_count = qat_stats.dequeued_count;
+ stats->enqueue_err_count = qat_stats.enqueue_err_count;
+ stats->dequeue_err_count = qat_stats.dequeue_err_count;
+}
+
+static void
+qat_comp_stats_reset(struct rte_compressdev *dev)
+{
+ struct qat_comp_dev_private *qat_priv;
+
+ if (dev == NULL) {
+ QAT_LOG(ERR, "invalid compressdev ptr %p", dev);
+ return;
+ }
+ qat_priv = dev->data->dev_private;
+
+ qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_COMPRESSION);
+
+}
+
+static int
+qat_comp_qp_release(struct rte_compressdev *dev, uint16_t queue_pair_id)
+{
+ struct qat_comp_dev_private *qat_private = dev->data->dev_private;
+ struct qat_qp **qp_addr =
+ (struct qat_qp **)&(dev->data->queue_pairs[queue_pair_id]);
+ struct qat_qp *qp = (struct qat_qp *)*qp_addr;
+ uint32_t i;
+
+ QAT_LOG(DEBUG, "Release comp qp %u on device %d",
+ queue_pair_id, dev->data->dev_id);
+
+ qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][queue_pair_id]
+ = NULL;
+
+ for (i = 0; i < qp->nb_descriptors; i++) {
+
+ struct qat_comp_op_cookie *cookie = qp->op_cookies[i];
+
+ rte_free(cookie->qat_sgl_src_d);
+ rte_free(cookie->qat_sgl_dst_d);
+ }
+
+ return qat_qp_release((struct qat_qp **)
+ &(dev->data->queue_pairs[queue_pair_id]));
+}
+
+static int
+qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
+ uint32_t max_inflight_ops, int socket_id)
+{
+ struct qat_qp *qp;
+ int ret = 0;
+ uint32_t i;
+ struct qat_qp_config qat_qp_conf;
+
+ struct qat_qp **qp_addr =
+ (struct qat_qp **)&(dev->data->queue_pairs[qp_id]);
+ struct qat_comp_dev_private *qat_private = dev->data->dev_private;
+ const struct qat_qp_hw_data *comp_hw_qps =
+ qat_gen_config[qat_private->qat_dev->qat_dev_gen]
+ .qp_hw_data[QAT_SERVICE_COMPRESSION];
+ const struct qat_qp_hw_data *qp_hw_data = comp_hw_qps + qp_id;
+
+ /* If qp is already in use free ring memory and qp metadata. */
+ if (*qp_addr != NULL) {
+ ret = qat_comp_qp_release(dev, qp_id);
+ if (ret < 0)
+ return ret;
+ }
+ if (qp_id >= qat_qps_per_service(comp_hw_qps,
+ QAT_SERVICE_COMPRESSION)) {
+ QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id);
+ return -EINVAL;
+ }
+
+ qat_qp_conf.hw = qp_hw_data;
+ qat_qp_conf.build_request = qat_comp_build_request;
+ qat_qp_conf.cookie_size = sizeof(struct qat_comp_op_cookie);
+ qat_qp_conf.nb_descriptors = max_inflight_ops;
+ qat_qp_conf.socket_id = socket_id;
+ qat_qp_conf.service_str = "comp";
+
+ ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf);
+ if (ret != 0)
+ return ret;
+
+ /* store a link to the qp in the qat_pci_device */
+ qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][qp_id]
+ = *qp_addr;
+
+ qp = (struct qat_qp *)*qp_addr;
+ qp->min_enq_burst_threshold = qat_private->min_enq_burst_threshold;
+
+ for (i = 0; i < qp->nb_descriptors; i++) {
+
+ struct qat_comp_op_cookie *cookie =
+ qp->op_cookies[i];
+
+ cookie->qp = qp;
+ cookie->cookie_index = i;
+
+ cookie->qat_sgl_src_d = rte_zmalloc_socket(NULL,
+ sizeof(struct qat_sgl) +
+ sizeof(struct qat_flat_buf) *
+ QAT_PMD_COMP_SGL_DEF_SEGMENTS,
+ 64, dev->data->socket_id);
+
+ cookie->qat_sgl_dst_d = rte_zmalloc_socket(NULL,
+ sizeof(struct qat_sgl) +
+ sizeof(struct qat_flat_buf) *
+ QAT_PMD_COMP_SGL_DEF_SEGMENTS,
+ 64, dev->data->socket_id);
+
+ if (cookie->qat_sgl_src_d == NULL ||
+ cookie->qat_sgl_dst_d == NULL) {
+ QAT_LOG(ERR, "Can't allocate SGL"
+ " for device %s",
+ qat_private->qat_dev->name);
+ return -ENOMEM;
+ }
+
+ cookie->qat_sgl_src_phys_addr =
+ rte_malloc_virt2iova(cookie->qat_sgl_src_d);
+
+ cookie->qat_sgl_dst_phys_addr =
+ rte_malloc_virt2iova(cookie->qat_sgl_dst_d);
+
+ cookie->dst_nb_elems = cookie->src_nb_elems =
+ QAT_PMD_COMP_SGL_DEF_SEGMENTS;
+
+ cookie->socket_id = dev->data->socket_id;
+
+ cookie->error = 0;
+ }
+
+ return ret;
+}
+
+
+#define QAT_IM_BUFFER_DEBUG 0
+static const struct rte_memzone *
+qat_comp_setup_inter_buffers(struct qat_comp_dev_private *comp_dev,
+ uint32_t buff_size)
+{
+ char inter_buff_mz_name[RTE_MEMZONE_NAMESIZE];
+ const struct rte_memzone *memzone;
+ uint8_t *mz_start = NULL;
+ rte_iova_t mz_start_phys = 0;
+ struct array_of_ptrs *array_of_pointers;
+ int size_of_ptr_array;
+ uint32_t full_size;
+ uint32_t offset_of_sgls, offset_of_flat_buffs = 0;
+ int i;
+ int num_im_sgls = qat_gen_config[
+ comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required;
+
+ QAT_LOG(DEBUG, "QAT COMP device %s needs %d sgls",
+ comp_dev->qat_dev->name, num_im_sgls);
+ snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE,
+ "%s_inter_buff", comp_dev->qat_dev->name);
+ memzone = rte_memzone_lookup(inter_buff_mz_name);
+ if (memzone != NULL) {
+ QAT_LOG(DEBUG, "QAT COMP im buffer memzone created already");
+ return memzone;
+ }
+
+ /* Create a memzone to hold intermediate buffers and associated
+ * meta-data needed by the firmware. The memzone contains 3 parts:
+ * - a list of num_im_sgls physical pointers to sgls
+ * - the num_im_sgl sgl structures, each pointing to
+ * QAT_NUM_BUFS_IN_IM_SGL flat buffers
+ * - the flat buffers: num_im_sgl * QAT_NUM_BUFS_IN_IM_SGL
+ * buffers, each of buff_size
+ * num_im_sgls depends on the hardware generation of the device
+ * buff_size comes from the user via the config file
+ */
+
+ size_of_ptr_array = num_im_sgls * sizeof(phys_addr_t);
+ offset_of_sgls = (size_of_ptr_array + (~QAT_64_BYTE_ALIGN_MASK))
+ & QAT_64_BYTE_ALIGN_MASK;
+ offset_of_flat_buffs =
+ offset_of_sgls + num_im_sgls * sizeof(struct qat_inter_sgl);
+ full_size = offset_of_flat_buffs +
+ num_im_sgls * buff_size * QAT_NUM_BUFS_IN_IM_SGL;
+
+ memzone = rte_memzone_reserve_aligned(inter_buff_mz_name, full_size,
+ comp_dev->compressdev->data->socket_id,
+ RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
+ if (memzone == NULL) {
+ QAT_LOG(ERR, "Can't allocate intermediate buffers"
+ " for device %s", comp_dev->qat_dev->name);
+ return NULL;
+ }
+
+ mz_start = (uint8_t *)memzone->addr;
+ mz_start_phys = memzone->phys_addr;
+ QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64
+ ", size required %d, size created %zu",
+ inter_buff_mz_name, mz_start, mz_start_phys,
+ full_size, memzone->len);
+
+ array_of_pointers = (struct array_of_ptrs *)mz_start;
+ for (i = 0; i < num_im_sgls; i++) {
+ uint32_t curr_sgl_offset =
+ offset_of_sgls + i * sizeof(struct qat_inter_sgl);
+ struct qat_inter_sgl *sgl =
+ (struct qat_inter_sgl *)(mz_start + curr_sgl_offset);
+ int lb;
+ array_of_pointers->pointer[i] = mz_start_phys + curr_sgl_offset;
+
+ sgl->num_bufs = QAT_NUM_BUFS_IN_IM_SGL;
+ sgl->num_mapped_bufs = 0;
+ sgl->resrvd = 0;
+
+#if QAT_IM_BUFFER_DEBUG
+ QAT_LOG(DEBUG, " : phys addr of sgl[%i] in array_of_pointers"
+ " = 0x%"PRIx64, i, array_of_pointers->pointer[i]);
+ QAT_LOG(DEBUG, " : virt address of sgl[%i] = %p", i, sgl);
+#endif
+ for (lb = 0; lb < QAT_NUM_BUFS_IN_IM_SGL; lb++) {
+ sgl->buffers[lb].addr =
+ mz_start_phys + offset_of_flat_buffs +
+ (((i * QAT_NUM_BUFS_IN_IM_SGL) + lb) * buff_size);
+ sgl->buffers[lb].len = buff_size;
+ sgl->buffers[lb].resrvd = 0;
+#if QAT_IM_BUFFER_DEBUG
+ QAT_LOG(DEBUG,
+ " : sgl->buffers[%d].addr = 0x%"PRIx64", len=%d",
+ lb, sgl->buffers[lb].addr, sgl->buffers[lb].len);
+#endif
+ }
+ }
+#if QAT_IM_BUFFER_DEBUG
+ QAT_DP_HEXDUMP_LOG(DEBUG, "IM buffer memzone start:",
+ mz_start, offset_of_flat_buffs + 32);
+#endif
+ return memzone;
+}
+
+static struct rte_mempool *
+qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
+ struct rte_compressdev_config *config,
+ uint32_t num_elements)
+{
+ char xform_pool_name[RTE_MEMPOOL_NAMESIZE];
+ struct rte_mempool *mp;
+
+ snprintf(xform_pool_name, RTE_MEMPOOL_NAMESIZE,
+ "%s_xforms", comp_dev->qat_dev->name);
+
+ QAT_LOG(DEBUG, "xformpool: %s", xform_pool_name);
+ mp = rte_mempool_lookup(xform_pool_name);
+
+ if (mp != NULL) {
+ QAT_LOG(DEBUG, "xformpool already created");
+ if (mp->size != num_elements) {
+ QAT_LOG(DEBUG, "xformpool wrong size - delete it");
+ rte_mempool_free(mp);
+ mp = NULL;
+ comp_dev->xformpool = NULL;
+ }
+ }
+
+ if (mp == NULL)
+ mp = rte_mempool_create(xform_pool_name,
+ num_elements,
+ qat_comp_xform_size(), 0, 0,
+ NULL, NULL, NULL, NULL, config->socket_id,
+ 0);
+ if (mp == NULL) {
+ QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d",
+ xform_pool_name, num_elements, qat_comp_xform_size());
+ return NULL;
+ }
+
+ return mp;
+}
+
+static void
+qat_comp_stream_init(struct rte_mempool *mp __rte_unused, void *opaque,
+ void *obj, unsigned int obj_idx)
+{
+ struct stream_create_info *info = opaque;
+ struct qat_comp_stream *stream = obj;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ const struct rte_memzone *memzone;
+ struct qat_inter_sgl *ram_banks_desc;
+
+ /* find a memzone for RAM banks */
+ snprintf(mz_name, RTE_MEMZONE_NAMESIZE, "%s_%u_rambanks",
+ info->comp_dev->qat_dev->name, obj_idx);
+ memzone = rte_memzone_lookup(mz_name);
+ if (memzone == NULL) {
+ /* allocate a memzone for compression state and RAM banks */
+ memzone = rte_memzone_reserve_aligned(mz_name,
+ QAT_STATE_REGISTERS_MAX_SIZE
+ + sizeof(struct qat_inter_sgl)
+ + QAT_INFLATE_CONTEXT_SIZE,
+ info->socket_id,
+ RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
+ if (memzone == NULL) {
+ QAT_LOG(ERR,
+ "Can't allocate RAM banks for device %s, object %u",
+ info->comp_dev->qat_dev->name, obj_idx);
+ info->error = -ENOMEM;
+ return;
+ }
+ }
+
+ /* prepare the buffer list descriptor for RAM banks */
+ ram_banks_desc = (struct qat_inter_sgl *)
+ (((uint8_t *) memzone->addr) + QAT_STATE_REGISTERS_MAX_SIZE);
+ ram_banks_desc->num_bufs = 1;
+ ram_banks_desc->buffers[0].len = QAT_INFLATE_CONTEXT_SIZE;
+ ram_banks_desc->buffers[0].addr = memzone->iova
+ + QAT_STATE_REGISTERS_MAX_SIZE
+ + sizeof(struct qat_inter_sgl);
+
+ memset(stream, 0, qat_comp_stream_size());
+ stream->memzone = memzone;
+ stream->state_registers_decomp = memzone->addr;
+ stream->state_registers_decomp_phys = memzone->iova;
+ stream->inflate_context = ((uint8_t *) memzone->addr)
+ + QAT_STATE_REGISTERS_MAX_SIZE;
+ stream->inflate_context_phys = memzone->iova
+ + QAT_STATE_REGISTERS_MAX_SIZE;
+}
+
+static void
+qat_comp_stream_destroy(struct rte_mempool *mp __rte_unused,
+ void *opaque __rte_unused, void *obj,
+ unsigned obj_idx __rte_unused)
+{
+ struct qat_comp_stream *stream = obj;
+
+ rte_memzone_free(stream->memzone);
+}
+
+static struct rte_mempool *
+qat_comp_create_stream_pool(struct qat_comp_dev_private *comp_dev,
+ int socket_id,
+ uint32_t num_elements)
+{
+ char stream_pool_name[RTE_MEMPOOL_NAMESIZE];
+ struct rte_mempool *mp;
+
+ snprintf(stream_pool_name, RTE_MEMPOOL_NAMESIZE,
+ "%s_streams", comp_dev->qat_dev->name);
+
+ QAT_LOG(DEBUG, "streampool: %s", stream_pool_name);
+ mp = rte_mempool_lookup(stream_pool_name);
+
+ if (mp != NULL) {
+ QAT_LOG(DEBUG, "streampool already created");
+ if (mp->size != num_elements) {
+ QAT_LOG(DEBUG, "streampool wrong size - delete it");
+ rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
+ rte_mempool_free(mp);
+ mp = NULL;
+ comp_dev->streampool = NULL;
+ }
+ }
+
+ if (mp == NULL) {
+ struct stream_create_info info = {
+ .comp_dev = comp_dev,
+ .socket_id = socket_id,
+ .error = 0
+ };
+ mp = rte_mempool_create(stream_pool_name,
+ num_elements,
+ qat_comp_stream_size(), 0, 0,
+ NULL, NULL, qat_comp_stream_init, &info,
+ socket_id, 0);
+ if (mp == NULL) {
+ QAT_LOG(ERR,
+ "Err creating mempool %s w %d elements of size %d",
+ stream_pool_name, num_elements,
+ qat_comp_stream_size());
+ } else if (info.error) {
+ rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
+ QAT_LOG(ERR,
+ "Destoying mempool %s as at least one element failed initialisation",
+ stream_pool_name);
+ rte_mempool_free(mp);
+ mp = NULL;
+ }
+ }
+
+ return mp;
+}
+
+static void
+_qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev)
+{
+ /* Free intermediate buffers */
+ if (comp_dev->interm_buff_mz) {
+ rte_memzone_free(comp_dev->interm_buff_mz);
+ comp_dev->interm_buff_mz = NULL;
+ }
+
+ /* Free private_xform pool */
+ if (comp_dev->xformpool) {
+ /* Free internal mempool for private xforms */
+ rte_mempool_free(comp_dev->xformpool);
+ comp_dev->xformpool = NULL;
+ }
+
+ /* Free stream pool */
+ if (comp_dev->streampool) {
+ rte_mempool_obj_iter(comp_dev->streampool,
+ qat_comp_stream_destroy, NULL);
+ rte_mempool_free(comp_dev->streampool);
+ comp_dev->streampool = NULL;
+ }
+}
+
+static int
+qat_comp_dev_config(struct rte_compressdev *dev,
+ struct rte_compressdev_config *config)
+{
+ struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
+ int ret = 0;
+
+ if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) {
+ QAT_LOG(WARNING,
+ "RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so"
+ " QAT device can't be used for Dynamic Deflate. "
+ "Did you really intend to do this?");
+ } else {
+ comp_dev->interm_buff_mz =
+ qat_comp_setup_inter_buffers(comp_dev,
+ RTE_PMD_QAT_COMP_IM_BUFFER_SIZE);
+ if (comp_dev->interm_buff_mz == NULL) {
+ ret = -ENOMEM;
+ goto error_out;
+ }
+ }
+
+ if (config->max_nb_priv_xforms) {
+ comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev,
+ config, config->max_nb_priv_xforms);
+ if (comp_dev->xformpool == NULL) {
+ ret = -ENOMEM;
+ goto error_out;
+ }
+ } else
+ comp_dev->xformpool = NULL;
+
+ if (config->max_nb_streams) {
+ comp_dev->streampool = qat_comp_create_stream_pool(comp_dev,
+ config->socket_id, config->max_nb_streams);
+ if (comp_dev->streampool == NULL) {
+ ret = -ENOMEM;
+ goto error_out;
+ }
+ } else
+ comp_dev->streampool = NULL;
+
+ return 0;
+
+error_out:
+ _qat_comp_dev_config_clear(comp_dev);
+ return ret;
+}
+
+static int
+qat_comp_dev_start(struct rte_compressdev *dev __rte_unused)
+{
+ return 0;
+}
+
+static void
+qat_comp_dev_stop(struct rte_compressdev *dev __rte_unused)
+{
+
+}
+
+static int
+qat_comp_dev_close(struct rte_compressdev *dev)
+{
+ int i;
+ int ret = 0;
+ struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
+
+ for (i = 0; i < dev->data->nb_queue_pairs; i++) {
+ ret = qat_comp_qp_release(dev, i);
+ if (ret < 0)
+ return ret;
+ }
+
+ _qat_comp_dev_config_clear(comp_dev);
+
+ return ret;
+}
+
+
+static void
+qat_comp_dev_info_get(struct rte_compressdev *dev,
+ struct rte_compressdev_info *info)
+{
+ struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
+ const struct qat_qp_hw_data *comp_hw_qps =
+ qat_gen_config[comp_dev->qat_dev->qat_dev_gen]
+ .qp_hw_data[QAT_SERVICE_COMPRESSION];
+
+ if (info != NULL) {
+ info->max_nb_queue_pairs =
+ qat_qps_per_service(comp_hw_qps,
+ QAT_SERVICE_COMPRESSION);
+ info->feature_flags = dev->feature_flags;
+ info->capabilities = comp_dev->qat_dev_capabilities;
+ }
+}
+
+static uint16_t
+qat_comp_pmd_enq_deq_dummy_op_burst(void *qp __rte_unused,
+ struct rte_comp_op **ops __rte_unused,
+ uint16_t nb_ops __rte_unused)
+{
+ QAT_DP_LOG(ERR, "QAT PMD detected wrong FW version !");
+ return 0;
+}
+
+static struct rte_compressdev_ops compress_qat_dummy_ops = {
+
+ /* Device related operations */
+ .dev_configure = NULL,
+ .dev_start = NULL,
+ .dev_stop = qat_comp_dev_stop,
+ .dev_close = qat_comp_dev_close,
+ .dev_infos_get = NULL,
+
+ .stats_get = NULL,
+ .stats_reset = qat_comp_stats_reset,
+ .queue_pair_setup = NULL,
+ .queue_pair_release = qat_comp_qp_release,
+
+ /* Compression related operations */
+ .private_xform_create = NULL,
+ .private_xform_free = qat_comp_private_xform_free
+};
+
+static uint16_t
+qat_comp_pmd_dequeue_first_op_burst(void *qp, struct rte_comp_op **ops,
+ uint16_t nb_ops)
+{
+ uint16_t ret = qat_dequeue_op_burst(qp, (void **)ops, nb_ops);
+ struct qat_qp *tmp_qp = (struct qat_qp *)qp;
+
+ if (ret) {
+ if ((*ops)->debug_status ==
+ (uint64_t)ERR_CODE_QAT_COMP_WRONG_FW) {
+ tmp_qp->qat_dev->comp_dev->compressdev->enqueue_burst =
+ qat_comp_pmd_enq_deq_dummy_op_burst;
+ tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
+ qat_comp_pmd_enq_deq_dummy_op_burst;
+
+ tmp_qp->qat_dev->comp_dev->compressdev->dev_ops =
+ &compress_qat_dummy_ops;
+ QAT_LOG(ERR, "QAT PMD detected wrong FW version !");
+
+ } else {
+ tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
+ (compressdev_dequeue_pkt_burst_t)
+ qat_dequeue_op_burst;
+ }
+ }
+ return ret;
+}
+
+static struct rte_compressdev_ops compress_qat_ops = {
+
+ /* Device related operations */
+ .dev_configure = qat_comp_dev_config,
+ .dev_start = qat_comp_dev_start,
+ .dev_stop = qat_comp_dev_stop,
+ .dev_close = qat_comp_dev_close,
+ .dev_infos_get = qat_comp_dev_info_get,
+
+ .stats_get = qat_comp_stats_get,
+ .stats_reset = qat_comp_stats_reset,
+ .queue_pair_setup = qat_comp_qp_setup,
+ .queue_pair_release = qat_comp_qp_release,
+
+ /* Compression related operations */
+ .private_xform_create = qat_comp_private_xform_create,
+ .private_xform_free = qat_comp_private_xform_free,
+ .stream_create = qat_comp_stream_create,
+ .stream_free = qat_comp_stream_free
+};
+
+/* An rte_driver is needed in the registration of the device with compressdev.
+ * The actual qat pci's rte_driver can't be used as its name represents
+ * the whole pci device with all services. Think of this as a holder for a name
+ * for the compression part of the pci device.
+ */
+static const char qat_comp_drv_name[] = RTE_STR(COMPRESSDEV_NAME_QAT_PMD);
+static const struct rte_driver compdev_qat_driver = {
+ .name = qat_comp_drv_name,
+ .alias = qat_comp_drv_name
+};
+int
+qat_comp_dev_create(struct qat_pci_device *qat_pci_dev,
+ struct qat_dev_cmd_param *qat_dev_cmd_param)
+{
+ int i = 0;
+ struct qat_device_info *qat_dev_instance =
+ &qat_pci_devs[qat_pci_dev->qat_dev_id];
+ if (qat_pci_dev->qat_dev_gen == QAT_GEN3) {
+ QAT_LOG(ERR, "Compression PMD not supported on QAT c4xxx");
+ return 0;
+ }
+
+ struct rte_compressdev_pmd_init_params init_params = {
+ .name = "",
+ .socket_id = qat_dev_instance->pci_dev->device.numa_node,
+ };
+ char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+ char capa_memz_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+ struct rte_compressdev *compressdev;
+ struct qat_comp_dev_private *comp_dev;
+ const struct rte_compressdev_capabilities *capabilities;
+ uint64_t capa_size;
+
+ snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s",
+ qat_pci_dev->name, "comp");
+ QAT_LOG(DEBUG, "Creating QAT COMP device %s", name);
+
+ /* Populate subset device to use in compressdev device creation */
+ qat_dev_instance->comp_rte_dev.driver = &compdev_qat_driver;
+ qat_dev_instance->comp_rte_dev.numa_node =
+ qat_dev_instance->pci_dev->device.numa_node;
+ qat_dev_instance->comp_rte_dev.devargs = NULL;
+
+ compressdev = rte_compressdev_pmd_create(name,
+ &(qat_dev_instance->comp_rte_dev),
+ sizeof(struct qat_comp_dev_private),
+ &init_params);
+
+ if (compressdev == NULL)
+ return -ENODEV;
+
+ compressdev->dev_ops = &compress_qat_ops;
+
+ compressdev->enqueue_burst = (compressdev_enqueue_pkt_burst_t)
+ qat_enqueue_comp_op_burst;
+ compressdev->dequeue_burst = qat_comp_pmd_dequeue_first_op_burst;
+
+ compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ snprintf(capa_memz_name, RTE_COMPRESSDEV_NAME_MAX_LEN,
+ "QAT_COMP_CAPA_GEN_%d",
+ qat_pci_dev->qat_dev_gen);
+
+ comp_dev = compressdev->data->dev_private;
+ comp_dev->qat_dev = qat_pci_dev;
+ comp_dev->compressdev = compressdev;
+
+ switch (qat_pci_dev->qat_dev_gen) {
+ case QAT_GEN1:
+ case QAT_GEN2:
+ case QAT_GEN3:
+ capabilities = qat_comp_gen_capabilities;
+ capa_size = sizeof(qat_comp_gen_capabilities);
+ break;
+ default:
+ capabilities = qat_comp_gen_capabilities;
+ capa_size = sizeof(qat_comp_gen_capabilities);
+ QAT_LOG(DEBUG,
+ "QAT gen %d capabilities unknown, default to GEN1",
+ qat_pci_dev->qat_dev_gen);
+ break;
+ }
+
+ comp_dev->capa_mz = rte_memzone_lookup(capa_memz_name);
+ if (comp_dev->capa_mz == NULL) {
+ comp_dev->capa_mz = rte_memzone_reserve(capa_memz_name,
+ capa_size,
+ rte_socket_id(), 0);
+ }
+ if (comp_dev->capa_mz == NULL) {
+ QAT_LOG(DEBUG,
+ "Error allocating memzone for capabilities, destroying PMD for %s",
+ name);
+ memset(&qat_dev_instance->comp_rte_dev, 0,
+ sizeof(qat_dev_instance->comp_rte_dev));
+ rte_compressdev_pmd_destroy(compressdev);
+ return -EFAULT;
+ }
+
+ memcpy(comp_dev->capa_mz->addr, capabilities, capa_size);
+ comp_dev->qat_dev_capabilities = comp_dev->capa_mz->addr;
+
+ while (1) {
+ if (qat_dev_cmd_param[i].name == NULL)
+ break;
+ if (!strcmp(qat_dev_cmd_param[i].name, COMP_ENQ_THRESHOLD_NAME))
+ comp_dev->min_enq_burst_threshold =
+ qat_dev_cmd_param[i].val;
+ i++;
+ }
+ qat_pci_dev->comp_dev = comp_dev;
+
+ QAT_LOG(DEBUG,
+ "Created QAT COMP device %s as compressdev instance %d",
+ name, compressdev->data->dev_id);
+ return 0;
+}
+
+int
+qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev)
+{
+ struct qat_comp_dev_private *comp_dev;
+
+ if (qat_pci_dev == NULL)
+ return -ENODEV;
+
+ comp_dev = qat_pci_dev->comp_dev;
+ if (comp_dev == NULL)
+ return 0;
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+ rte_memzone_free(qat_pci_dev->comp_dev->capa_mz);
+
+ /* clean up any resources used by the device */
+ qat_comp_dev_close(comp_dev->compressdev);
+
+ rte_compressdev_pmd_destroy(comp_dev->compressdev);
+ qat_pci_dev->comp_dev = NULL;
+
+ return 0;
+}
git.droids-corp.org / dpdk.git / blobdiff