crypto/ccp: fix scheduling of burst
[dpdk.git] / drivers / compress / qat / qat_comp_pmd.c
index d45cd67..05b7dfe 100644 (file)
@@ -1,10 +1,20 @@
 /* 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,
@@ -17,7 +27,8 @@ static const struct rte_compressdev_capabilities qat_comp_gen_capabilities[] = {
                                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_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} } };
 
@@ -60,6 +71,10 @@ 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);
@@ -67,6 +82,14 @@ qat_comp_qp_release(struct rte_compressdev *dev, uint16_t queue_pair_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]));
 }
@@ -122,15 +145,38 @@ qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
                struct qat_comp_op_cookie *cookie =
                                qp->op_cookies[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_mempool_virt2iova(cookie) +
-                               offsetof(struct qat_comp_op_cookie,
-                               qat_sgl_src);
+                               rte_malloc_virt2iova(cookie->qat_sgl_src_d);
 
                cookie->qat_sgl_dst_phys_addr =
-                               rte_mempool_virt2iova(cookie) +
-                               offsetof(struct qat_comp_op_cookie,
-                               qat_sgl_dst);
+                               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;
@@ -239,7 +285,8 @@ qat_comp_setup_inter_buffers(struct qat_comp_dev_private *comp_dev,
 
 static struct rte_mempool *
 qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
-                             uint32_t num_elements)
+                          struct rte_compressdev_config *config,
+                          uint32_t num_elements)
 {
        char xform_pool_name[RTE_MEMPOOL_NAMESIZE];
        struct rte_mempool *mp;
@@ -264,7 +311,7 @@ qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
                mp = rte_mempool_create(xform_pool_name,
                                num_elements,
                                qat_comp_xform_size(), 0, 0,
-                               NULL, NULL, NULL, NULL, rte_socket_id(),
+                               NULL, NULL, NULL, NULL, config->socket_id,
                                0);
        if (mp == NULL) {
                QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d",
@@ -275,6 +322,120 @@ qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
        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)
 {
@@ -290,6 +451,14 @@ _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev)
                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
@@ -299,12 +468,6 @@ qat_comp_dev_config(struct rte_compressdev *dev,
        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;
-       }
-
        if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) {
                QAT_LOG(WARNING,
                        "RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so"
@@ -320,13 +483,26 @@ qat_comp_dev_config(struct rte_compressdev *dev,
                }
        }
 
-       comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev,
-                                       config->max_nb_priv_xforms);
-       if (comp_dev->xformpool == NULL) {
+       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;
 
-               ret = -ENOMEM;
-               goto error_out;
-       }
        return 0;
 
 error_out:
@@ -468,7 +644,9 @@ static struct rte_compressdev_ops compress_qat_ops = {
 
        /* Compression related operations */
        .private_xform_create   = qat_comp_private_xform_create,
-       .private_xform_free     = qat_comp_private_xform_free
+       .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.