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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018 Intel Corporation
*/
#ifndef _QAT_QP_H_
#define _QAT_QP_H_
#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 */
#define QAT_CSR_TAIL_WRITE_THRESH 32U
/* number of requests to accumulate before writing tail CSR */
#define QAT_CSR_TAIL_FORCE_WRITE_THRESH 256U
/* number of inflights below which no tail write coalescing should occur */
typedef int (*build_request_t)(void *op,
uint8_t *req, void *op_cookie,
enum qat_device_gen qat_dev_gen);
/**< Build a request from an op. */
/**
* 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;
build_request_t build_request;
const char *service_str;
};
/**
* Structure associated with each queue.
*/
struct qat_queue {
char memz_name[RTE_MEMZONE_NAMESIZE];
void *base_addr; /* Base address */
rte_iova_t base_phys_addr; /* Queue physical address */
uint32_t head; /* Shadow copy of the head */
uint32_t tail; /* Shadow copy of the tail */
uint32_t modulo_mask;
uint32_t msg_size;
uint16_t max_inflights;
uint32_t queue_size;
uint8_t hw_bundle_number;
uint8_t hw_queue_number;
/* HW queue aka ring offset on bundle */
uint32_t csr_head; /* last written head value */
uint32_t csr_tail; /* last written tail value */
uint16_t nb_processed_responses;
/* number of responses processed since last CSR head write */
uint16_t nb_pending_requests;
/* number of requests pending since last CSR tail write */
};
struct qat_qp {
void *mmap_bar_addr;
uint16_t inflights16;
struct qat_queue tx_q;
struct qat_queue rx_q;
struct qat_common_stats stats;
struct rte_mempool *op_cookie_pool;
void **op_cookies;
uint32_t nb_descriptors;
enum qat_device_gen qat_dev_gen;
build_request_t build_request;
enum qat_service_type service_type;
struct qat_pci_device *qat_dev;
/**< qat device this qp is on */
} __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];
uint16_t
qat_enqueue_op_burst(void *qp, void **ops, uint16_t nb_ops);
uint16_t
qat_dequeue_op_burst(void *qp, void **ops, uint16_t nb_ops);
int
qat_qp_release(struct qat_qp **qp_addr);
int
qat_qp_setup(struct qat_pci_device *qat_dev,
struct qat_qp **qp_addr, uint16_t queue_pair_id,
struct qat_qp_config *qat_qp_conf);
int
qat_qps_per_service(const struct qat_qp_hw_data *qp_hw_data,
enum qat_service_type service);
/* Needed for weak function*/
int
qat_comp_process_response(void **op __rte_unused, uint8_t *resp __rte_unused);
#endif /* _QAT_QP_H_ */
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