[dpdk-dev] [PATCH v4 08/16] compress/qat: setup queue-pairs for compression service

[Fiona Trahe <fiona.trahe@intel.com>]

Setup and clear queue-pairs for handling compression
requests and responses.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Tomasz Jozwiak <tomaszx.jozwiak@intel.com>
---
 drivers/compress/qat/qat_comp.h     |  2 ++
 drivers/compress/qat/qat_comp_pmd.c | 61 +++++++++++++++++++++++++++++++++++++
 drivers/compress/qat/qat_comp_pmd.h |  6 ++++
 3 files changed, 69 insertions(+)

diff --git a/drivers/compress/qat/qat_comp.h b/drivers/compress/qat/qat_comp.h
index 937f3c8..9e6861b 100644
--- a/drivers/compress/qat/qat_comp.h
+++ b/drivers/compress/qat/qat_comp.h
@@ -24,6 +24,8 @@ enum qat_comp_request_type {
 	REQ_COMP_END
 };
 
+struct qat_comp_op_cookie {
+};
 
 struct qat_comp_xform {
 	struct icp_qat_fw_comp_req qat_comp_req_tmpl;
diff --git a/drivers/compress/qat/qat_comp_pmd.c b/drivers/compress/qat/qat_comp_pmd.c
index 6feffb7..5ae6caf 100644
--- a/drivers/compress/qat/qat_comp_pmd.c
+++ b/drivers/compress/qat/qat_comp_pmd.c
@@ -2,6 +2,7 @@
  * Copyright(c) 2015-2018 Intel Corporation
  */
 
+#include "qat_comp.h"
 #include "qat_comp_pmd.h"
 
 void
@@ -38,3 +39,63 @@ qat_comp_stats_reset(struct rte_compressdev *dev)
 	qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_COMPRESSION);
 
 }
+
+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]));
+}
+
+int
+qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
+		  uint32_t max_inflight_ops, int socket_id)
+{
+	int ret = 0;
+	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;
+
+	return ret;
+}
diff --git a/drivers/compress/qat/qat_comp_pmd.h b/drivers/compress/qat/qat_comp_pmd.h
index 27d84c8..5a4bc31 100644
--- a/drivers/compress/qat/qat_comp_pmd.h
+++ b/drivers/compress/qat/qat_comp_pmd.h
@@ -34,6 +34,12 @@ qat_comp_stats_reset(struct rte_compressdev *dev);
 void
 qat_comp_stats_get(struct rte_compressdev *dev,
 		struct rte_compressdev_stats *stats);
+int
+qat_comp_qp_release(struct rte_compressdev *dev, uint16_t queue_pair_id);
+
+int
+qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
+		  uint32_t max_inflight_ops, int socket_id);
 
 #endif
 #endif /* _QAT_COMP_PMD_H_ */
-- 
2.7.4