compress/qat: add configure and clear functions

Add functions to configure and clear the qat comp device,
including the creation and freeing of the xform pool
and the freeing of queue-pairs.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Tomasz Jozwiak <tomaszx.jozwiak@intel.com>

diff --git a/drivers/compress/qat/qat_comp_pmd.c b/drivers/compress/qat/qat_comp_pmd.c
index 5ae6caf..beab6e3 100644 (file)
--- a/drivers/compress/qat/qat_comp_pmd.c
+++ b/drivers/compress/qat/qat_comp_pmd.c
@@ -99,3 +99,98 @@ qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
 
        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;
+       }
+}
+
+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;
+}
+
+
+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;
+}

diff --git a/drivers/compress/qat/qat_comp_pmd.h b/drivers/compress/qat/qat_comp_pmd.h
index 5a4bc31..b10a66f 100644 (file)
--- a/drivers/compress/qat/qat_comp_pmd.h
+++ b/drivers/compress/qat/qat_comp_pmd.h
@@ -41,5 +41,12 @@ int
 qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
                  uint32_t max_inflight_ops, int socket_id);
 
+int
+qat_comp_dev_config(struct rte_compressdev *dev,
+               struct rte_compressdev_config *config);
+
+int
+qat_comp_dev_close(struct rte_compressdev *dev);
+
 #endif
 #endif /* _QAT_COMP_PMD_H_ */