diff options
Diffstat (limited to 'drivers/common/qat/qat_qp.h')
| -rw-r--r-- | drivers/common/qat/qat_qp.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/common/qat/qat_qp.h b/drivers/common/qat/qat_qp.h new file mode 100644 index 00000000..69f8a613 --- /dev/null +++ b/drivers/common/qat/qat_qp.h @@ -0,0 +1,111 @@ +/* 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]; + +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_ */ |