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/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
/*
* Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef _EFA_COM_CMD_H_
#define _EFA_COM_CMD_H_
#include "efa_com.h"
#define EFA_GID_SIZE 16
struct efa_com_create_qp_params {
u64 rq_base_addr;
u32 send_cq_idx;
u32 recv_cq_idx;
/*
* Send descriptor ring size in bytes,
* sufficient for user-provided number of WQEs and SGL size
*/
u32 sq_ring_size_in_bytes;
/* Max number of WQEs that will be posted on send queue */
u32 sq_depth;
/* Recv descriptor ring size in bytes */
u32 rq_ring_size_in_bytes;
u32 rq_depth;
u16 pd;
u16 uarn;
u8 qp_type;
};
struct efa_com_create_qp_result {
u32 qp_handle;
u32 qp_num;
u32 sq_db_offset;
u32 rq_db_offset;
u32 llq_descriptors_offset;
u16 send_sub_cq_idx;
u16 recv_sub_cq_idx;
};
struct efa_com_modify_qp_params {
u32 modify_mask;
u32 qp_handle;
u32 qp_state;
u32 cur_qp_state;
u32 qkey;
u32 sq_psn;
u8 sq_drained_async_notify;
};
struct efa_com_query_qp_params {
u32 qp_handle;
};
struct efa_com_query_qp_result {
u32 qp_state;
u32 qkey;
u32 sq_draining;
u32 sq_psn;
};
struct efa_com_destroy_qp_params {
u32 qp_handle;
};
struct efa_com_create_cq_params {
/* cq physical base address in OS memory */
dma_addr_t dma_addr;
/* completion queue depth in # of entries */
u16 cq_depth;
u16 num_sub_cqs;
u16 uarn;
u8 entry_size_in_bytes;
};
struct efa_com_create_cq_result {
/* cq identifier */
u16 cq_idx;
/* actual cq depth in # of entries */
u16 actual_depth;
};
struct efa_com_destroy_cq_params {
u16 cq_idx;
};
struct efa_com_create_ah_params {
u16 pdn;
/* Destination address in network byte order */
u8 dest_addr[EFA_GID_SIZE];
};
struct efa_com_create_ah_result {
u16 ah;
};
struct efa_com_destroy_ah_params {
u16 ah;
u16 pdn;
};
struct efa_com_get_network_attr_result {
u8 addr[EFA_GID_SIZE];
u32 mtu;
};
struct efa_com_get_device_attr_result {
u64 page_size_cap;
u64 max_mr_pages;
u32 fw_version;
u32 admin_api_version;
u32 device_version;
u32 supported_features;
u32 phys_addr_width;
u32 virt_addr_width;
u32 max_qp;
u32 max_sq_depth; /* wqes */
u32 max_rq_depth; /* wqes */
u32 max_cq;
u32 max_cq_depth; /* cqes */
u32 inline_buf_size;
u32 max_mr;
u32 max_pd;
u32 max_ah;
u32 max_llq_size;
u16 sub_cqs_per_cq;
u16 max_sq_sge;
u16 max_rq_sge;
u8 db_bar;
};
struct efa_com_get_hw_hints_result {
u16 mmio_read_timeout;
u16 driver_watchdog_timeout;
u16 admin_completion_timeout;
u16 poll_interval;
u32 reserved[4];
};
struct efa_com_mem_addr {
u32 mem_addr_low;
u32 mem_addr_high;
};
/* Used at indirect mode page list chunks for chaining */
struct efa_com_ctrl_buff_info {
/* indicates length of the buffer pointed by control_buffer_address. */
u32 length;
/* points to control buffer (direct or indirect) */
struct efa_com_mem_addr address;
};
struct efa_com_reg_mr_params {
/* Memory region length, in bytes. */
u64 mr_length_in_bytes;
/* IO Virtual Address associated with this MR. */
u64 iova;
/* words 8:15: Physical Buffer List, each element is page-aligned. */
union {
/*
* Inline array of physical addresses of app pages
* (optimization for short region reservations)
*/
u64 inline_pbl_array[4];
/*
* Describes the next physically contiguous chunk of indirect
* page list. A page list contains physical addresses of command
* data pages. Data pages are 4KB; page list chunks are
* variable-sized.
*/
struct efa_com_ctrl_buff_info pbl;
} pbl;
/* number of pages in PBL (redundant, could be calculated) */
u32 page_num;
/* Protection Domain */
u16 pd;
/*
* phys_page_size_shift - page size is (1 << phys_page_size_shift)
* Page size is used for building the Virtual to Physical
* address mapping
*/
u8 page_shift;
/*
* permissions
* 0: local_write_enable - Write permissions: value of 1 needed
* for RQ buffers and for RDMA write:1: reserved1 - remote
* access flags, etc
*/
u8 permissions;
u8 inline_pbl;
u8 indirect;
};
struct efa_com_reg_mr_result {
/*
* To be used in conjunction with local buffers references in SQ and
* RQ WQE
*/
u32 l_key;
/*
* To be used in incoming RDMA semantics messages to refer to remotely
* accessed memory region
*/
u32 r_key;
};
struct efa_com_dereg_mr_params {
u32 l_key;
};
struct efa_com_alloc_pd_result {
u16 pdn;
};
struct efa_com_dealloc_pd_params {
u16 pdn;
};
struct efa_com_alloc_uar_result {
u16 uarn;
};
struct efa_com_dealloc_uar_params {
u16 uarn;
};
void efa_com_set_dma_addr(dma_addr_t addr, u32 *addr_high, u32 *addr_low);
int efa_com_create_qp(struct efa_com_dev *edev,
struct efa_com_create_qp_params *params,
struct efa_com_create_qp_result *res);
int efa_com_modify_qp(struct efa_com_dev *edev,
struct efa_com_modify_qp_params *params);
int efa_com_query_qp(struct efa_com_dev *edev,
struct efa_com_query_qp_params *params,
struct efa_com_query_qp_result *result);
int efa_com_destroy_qp(struct efa_com_dev *edev,
struct efa_com_destroy_qp_params *params);
int efa_com_create_cq(struct efa_com_dev *edev,
struct efa_com_create_cq_params *params,
struct efa_com_create_cq_result *result);
int efa_com_destroy_cq(struct efa_com_dev *edev,
struct efa_com_destroy_cq_params *params);
int efa_com_register_mr(struct efa_com_dev *edev,
struct efa_com_reg_mr_params *params,
struct efa_com_reg_mr_result *result);
int efa_com_dereg_mr(struct efa_com_dev *edev,
struct efa_com_dereg_mr_params *params);
int efa_com_create_ah(struct efa_com_dev *edev,
struct efa_com_create_ah_params *params,
struct efa_com_create_ah_result *result);
int efa_com_destroy_ah(struct efa_com_dev *edev,
struct efa_com_destroy_ah_params *params);
int efa_com_get_network_attr(struct efa_com_dev *edev,
struct efa_com_get_network_attr_result *result);
int efa_com_get_device_attr(struct efa_com_dev *edev,
struct efa_com_get_device_attr_result *result);
int efa_com_get_hw_hints(struct efa_com_dev *edev,
struct efa_com_get_hw_hints_result *result);
int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups);
int efa_com_alloc_pd(struct efa_com_dev *edev,
struct efa_com_alloc_pd_result *result);
int efa_com_dealloc_pd(struct efa_com_dev *edev,
struct efa_com_dealloc_pd_params *params);
int efa_com_alloc_uar(struct efa_com_dev *edev,
struct efa_com_alloc_uar_result *result);
int efa_com_dealloc_uar(struct efa_com_dev *edev,
struct efa_com_dealloc_uar_params *params);
#endif /* _EFA_COM_CMD_H_ */