diff options
Diffstat (limited to 'drivers/compress/qat/qat_comp_pmd.c')
| -rw-r--r-- | drivers/compress/qat/qat_comp_pmd.c | 429 |
1 files changed, 429 insertions, 0 deletions
diff --git a/drivers/compress/qat/qat_comp_pmd.c b/drivers/compress/qat/qat_comp_pmd.c new file mode 100644 index 00000000..b89975fc --- /dev/null +++ b/drivers/compress/qat/qat_comp_pmd.c @@ -0,0 +1,429 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2015-2018 Intel Corporation + */ + +#include "qat_comp.h" +#include "qat_comp_pmd.h" + +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_OOP_SGL_IN_SGL_OUT | + RTE_COMP_FF_OOP_SGL_IN_LB_OUT | + RTE_COMP_FF_OOP_LB_IN_SGL_OUT, + .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; + + 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; + + 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; + + for (i = 0; i < qp->nb_descriptors; i++) { + + struct qat_comp_op_cookie *cookie = + qp->op_cookies[i]; + + cookie->qat_sgl_src_phys_addr = + rte_mempool_virt2iova(cookie) + + offsetof(struct qat_comp_op_cookie, + qat_sgl_src); + + cookie->qat_sgl_dst_phys_addr = + rte_mempool_virt2iova(cookie) + + offsetof(struct qat_comp_op_cookie, + qat_sgl_dst); + } + + return ret; +} + +static struct rte_mempool * +qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev, + 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, rte_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_dev_config_clear(struct qat_comp_dev_private *comp_dev) +{ + /* Free private_xform pool */ + if (comp_dev->xformpool) { + /* Free internal mempool for private xforms */ + rte_mempool_free(comp_dev->xformpool); + comp_dev->xformpool = 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 (config->max_nb_streams != 0) { + QAT_LOG(ERR, + "QAT device does not support STATEFUL so max_nb_streams must be 0"); + return -EINVAL; + } + + comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev, + config->max_nb_priv_xforms); + if (comp_dev->xformpool == NULL) { + + ret = -ENOMEM; + goto error_out; + } + 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_enqueue_op_burst(void *qp, struct rte_comp_op **ops, + uint16_t nb_ops) +{ + return qat_enqueue_op_burst(qp, (void **)ops, nb_ops); +} + +static uint16_t +qat_comp_pmd_dequeue_op_burst(void *qp, struct rte_comp_op **ops, + uint16_t nb_ops) +{ + return qat_dequeue_op_burst(qp, (void **)ops, nb_ops); +} + +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_frst_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 = + qat_comp_pmd_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 +}; + +int +qat_comp_dev_create(struct qat_pci_device *qat_pci_dev) +{ + if (qat_pci_dev->qat_dev_gen == QAT_GEN1) { + QAT_LOG(ERR, "Compression PMD not supported on QAT dh895xcc"); + return 0; + } + + struct rte_compressdev_pmd_init_params init_params = { + .name = "", + .socket_id = qat_pci_dev->pci_dev->device.numa_node, + }; + char name[RTE_COMPRESSDEV_NAME_MAX_LEN]; + struct rte_compressdev *compressdev; + struct qat_comp_dev_private *comp_dev; + + snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s", + qat_pci_dev->name, "comp"); + QAT_LOG(DEBUG, "Creating QAT COMP device %s", name); + + compressdev = rte_compressdev_pmd_create(name, + &qat_pci_dev->pci_dev->device, + sizeof(struct qat_comp_dev_private), + &init_params); + + if (compressdev == NULL) + return -ENODEV; + + compressdev->dev_ops = &compress_qat_ops; + + compressdev->enqueue_burst = qat_comp_pmd_enqueue_op_burst; + compressdev->dequeue_burst = qat_comp_pmd_dequeue_frst_op_burst; + + compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED; + + comp_dev = compressdev->data->dev_private; + comp_dev->qat_dev = qat_pci_dev; + comp_dev->compressdev = compressdev; + qat_pci_dev->comp_dev = comp_dev; + + switch (qat_pci_dev->qat_dev_gen) { + case QAT_GEN1: + case QAT_GEN2: + comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities; + break; + default: + comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities; + QAT_LOG(DEBUG, + "QAT gen %d capabilities unknown, default to GEN1", + qat_pci_dev->qat_dev_gen); + break; + } + + 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; + + /* 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; +} |