[dpdk-dev] [dpdk-dev v8 3/9] common/qat: add gen specific queue pair function

[Kai Ji <kai.ji@intel.com>]

From: Fan Zhang <roy.fan.zhang@intel.com>

This patch adds the queue pair data structure and function
prototypes for different QAT generations.

Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Ciara Power <ciara.power@intel.com>
---
 drivers/common/qat/qat_qp.c |   3 ++
 drivers/common/qat/qat_qp.h | 103 ++++++++++++++++++++++++------------
 2 files changed, 71 insertions(+), 35 deletions(-)

diff --git a/drivers/common/qat/qat_qp.c b/drivers/common/qat/qat_qp.c
index b8c6000e86..27994036b8 100644
--- a/drivers/common/qat/qat_qp.c
+++ b/drivers/common/qat/qat_qp.c
@@ -34,6 +34,9 @@
 	ADF_CSR_WR(csr_addr, ADF_ARB_RINGSRVARBEN_OFFSET + \
 	(ADF_ARB_REG_SLOT * index), value)

+struct qat_qp_hw_spec_funcs*
+	qat_qp_hw_spec[QAT_N_GENS];
+
 __extension__
 const struct qat_qp_hw_data qat_gen1_qps[QAT_MAX_SERVICES]
 					 [ADF_MAX_QPS_ON_ANY_SERVICE] = {
diff --git a/drivers/common/qat/qat_qp.h b/drivers/common/qat/qat_qp.h
index e1627197fa..726cd2ef61 100644
--- a/drivers/common/qat/qat_qp.h
+++ b/drivers/common/qat/qat_qp.h
@@ -7,8 +7,6 @@
 #include "qat_common.h"
 #include "adf_transport_access_macros.h"

-struct qat_pci_device;
-
 #define QAT_CSR_HEAD_WRITE_THRESH 32U
 /* number of requests to accumulate before writing head CSR */

@@ -24,37 +22,7 @@ struct qat_pci_device;
 #define QAT_GEN4_BUNDLE_NUM             4
 #define QAT_GEN4_QPS_PER_BUNDLE_NUM     1

-/**
- * Structure with data needed for creation of queue pair.
- */
-struct qat_qp_hw_data {
-	enum qat_service_type service_type;
-	uint8_t hw_bundle_num;
-	uint8_t tx_ring_num;
-	uint8_t rx_ring_num;
-	uint16_t tx_msg_size;
-	uint16_t rx_msg_size;
-};
-
-/**
- * Structure with data needed for creation of queue pair on gen4.
- */
-struct qat_qp_gen4_data {
-	struct qat_qp_hw_data qat_qp_hw_data;
-	uint8_t reserved;
-	uint8_t valid;
-};
-
-/**
- * Structure with data needed for creation of queue pair.
- */
-struct qat_qp_config {
-	const struct qat_qp_hw_data *hw;
-	uint32_t nb_descriptors;
-	uint32_t cookie_size;
-	int socket_id;
-	const char *service_str;
-};
+struct qat_pci_device;

 /**
  * Structure associated with each queue.
@@ -96,8 +64,28 @@ struct qat_qp {
 	uint16_t min_enq_burst_threshold;
 } __rte_cache_aligned;

-extern const struct qat_qp_hw_data qat_gen1_qps[][ADF_MAX_QPS_ON_ANY_SERVICE];
-extern const struct qat_qp_hw_data qat_gen3_qps[][ADF_MAX_QPS_ON_ANY_SERVICE];
+/**
+ * Structure with data needed for creation of queue pair.
+ */
+struct qat_qp_hw_data {
+	enum qat_service_type service_type;
+	uint8_t hw_bundle_num;
+	uint8_t tx_ring_num;
+	uint8_t rx_ring_num;
+	uint16_t tx_msg_size;
+	uint16_t rx_msg_size;
+};
+
+/**
+ * Structure with data needed for creation of queue pair.
+ */
+struct qat_qp_config {
+	const struct qat_qp_hw_data *hw;
+	uint32_t nb_descriptors;
+	uint32_t cookie_size;
+	int socket_id;
+	const char *service_str;
+};

 uint16_t
 qat_enqueue_op_burst(void *qp, void **ops, uint16_t nb_ops);
@@ -136,4 +124,49 @@ qat_select_valid_queue(struct qat_pci_device *qat_dev, int qp_id,
 int
 qat_read_qp_config(struct qat_pci_device *qat_dev);

+/**
+ * Function prototypes for GENx specific queue pair operations.
+ **/
+typedef int (*qat_qp_rings_per_service_t)
+		(struct qat_pci_device *, enum qat_service_type);
+
+typedef void (*qat_qp_build_ring_base_t)(void *, struct qat_queue *);
+
+typedef void (*qat_qp_adf_arb_enable_t)(const struct qat_queue *, void *,
+		rte_spinlock_t *);
+
+typedef void (*qat_qp_adf_arb_disable_t)(const struct qat_queue *, void *,
+		rte_spinlock_t *);
+
+typedef void (*qat_qp_adf_configure_queues_t)(struct qat_qp *);
+
+typedef void (*qat_qp_csr_write_tail_t)(struct qat_qp *qp, struct qat_queue *q);
+
+typedef void (*qat_qp_csr_write_head_t)(struct qat_qp *qp, struct qat_queue *q,
+		uint32_t new_head);
+
+typedef void (*qat_qp_csr_setup_t)(struct qat_pci_device*, void *,
+		struct qat_qp *);
+
+typedef const struct qat_qp_hw_data * (*qat_qp_get_hw_data_t)(
+		struct qat_pci_device *dev, enum qat_service_type service_type,
+		uint16_t qp_id);
+
+struct qat_qp_hw_spec_funcs {
+	qat_qp_rings_per_service_t	qat_qp_rings_per_service;
+	qat_qp_build_ring_base_t	qat_qp_build_ring_base;
+	qat_qp_adf_arb_enable_t		qat_qp_adf_arb_enable;
+	qat_qp_adf_arb_disable_t	qat_qp_adf_arb_disable;
+	qat_qp_adf_configure_queues_t	qat_qp_adf_configure_queues;
+	qat_qp_csr_write_tail_t		qat_qp_csr_write_tail;
+	qat_qp_csr_write_head_t		qat_qp_csr_write_head;
+	qat_qp_csr_setup_t		qat_qp_csr_setup;
+	qat_qp_get_hw_data_t		qat_qp_get_hw_data;
+};
+
+extern struct qat_qp_hw_spec_funcs *qat_qp_hw_spec[];
+
+extern const struct qat_qp_hw_data qat_gen1_qps[][ADF_MAX_QPS_ON_ANY_SERVICE];
+extern const struct qat_qp_hw_data qat_gen3_qps[][ADF_MAX_QPS_ON_ANY_SERVICE];
+
 #endif /* _QAT_QP_H_ */
--
2.17.1