1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
3 * Copyright 2018-2021 Amazon.com, Inc. or its affiliates. All rights reserved.
6 #ifndef _EFA_COM_CMD_H_
7 #define _EFA_COM_CMD_H_
11 #define EFA_GID_SIZE 16
13 struct efa_com_create_qp_params {
18 * Send descriptor ring size in bytes,
19 * sufficient for user-provided number of WQEs and SGL size
21 u32 sq_ring_size_in_bytes;
22 /* Max number of WQEs that will be posted on send queue */
24 /* Recv descriptor ring size in bytes */
25 u32 rq_ring_size_in_bytes;
32 struct efa_com_create_qp_result {
37 u32 llq_descriptors_offset;
42 struct efa_com_modify_qp_params {
49 u8 sq_drained_async_notify;
53 struct efa_com_query_qp_params {
57 struct efa_com_query_qp_result {
65 struct efa_com_destroy_qp_params {
69 struct efa_com_create_cq_params {
70 /* cq physical base address in OS memory */
72 /* completion queue depth in # of entries */
77 u8 entry_size_in_bytes;
78 bool interrupt_mode_enabled;
81 struct efa_com_create_cq_result {
84 /* actual cq depth in # of entries */
90 struct efa_com_destroy_cq_params {
94 struct efa_com_create_ah_params {
96 /* Destination address in network byte order */
97 u8 dest_addr[EFA_GID_SIZE];
100 struct efa_com_create_ah_result {
104 struct efa_com_destroy_ah_params {
109 struct efa_com_get_device_attr_result {
110 u8 addr[EFA_GID_SIZE];
115 u32 admin_api_version;
117 u32 supported_features;
121 u32 max_sq_depth; /* wqes */
122 u32 max_rq_depth; /* wqes */
124 u32 max_cq_depth; /* cqes */
134 u32 event_bitmask; /* EQ events bitmask */
144 struct efa_com_get_hw_hints_result {
145 u16 mmio_read_timeout;
146 u16 driver_watchdog_timeout;
147 u16 admin_completion_timeout;
152 struct efa_com_mem_addr {
157 /* Used at indirect mode page list chunks for chaining */
158 struct efa_com_ctrl_buff_info {
159 /* indicates length of the buffer pointed by control_buffer_address. */
161 /* points to control buffer (direct or indirect) */
162 struct efa_com_mem_addr address;
165 struct efa_com_reg_mr_params {
166 /* Memory region length, in bytes. */
167 u64 mr_length_in_bytes;
168 /* IO Virtual Address associated with this MR. */
170 /* words 8:15: Physical Buffer List, each element is page-aligned. */
173 * Inline array of physical addresses of app pages
174 * (optimization for short region reservations)
176 u64 inline_pbl_array[4];
178 * Describes the next physically contiguous chunk of indirect
179 * page list. A page list contains physical addresses of command
180 * data pages. Data pages are 4KB; page list chunks are
183 struct efa_com_ctrl_buff_info pbl;
185 /* number of pages in PBL (redundant, could be calculated) */
187 /* Protection Domain */
190 * phys_page_size_shift - page size is (1 << phys_page_size_shift)
191 * Page size is used for building the Virtual to Physical
195 /* see permissions field of struct efa_admin_reg_mr_cmd */
201 struct efa_com_reg_mr_result {
203 * To be used in conjunction with local buffers references in SQ and
208 * To be used in incoming RDMA semantics messages to refer to remotely
209 * accessed memory region
214 struct efa_com_dereg_mr_params {
218 struct efa_com_alloc_pd_result {
222 struct efa_com_dealloc_pd_params {
226 struct efa_com_alloc_uar_result {
230 struct efa_com_dealloc_uar_params {
234 struct efa_com_get_stats_params {
235 /* see enum efa_admin_get_stats_type */
237 /* see enum efa_admin_get_stats_scope */
242 struct efa_com_basic_stats {
250 struct efa_com_messages_stats {
257 struct efa_com_rdma_read_stats {
264 union efa_com_get_stats_result {
265 struct efa_com_basic_stats basic_stats;
266 struct efa_com_messages_stats messages_stats;
267 struct efa_com_rdma_read_stats rdma_read_stats;
270 int efa_com_create_qp(struct efa_com_dev *edev,
271 struct efa_com_create_qp_params *params,
272 struct efa_com_create_qp_result *res);
273 int efa_com_modify_qp(struct efa_com_dev *edev,
274 struct efa_com_modify_qp_params *params);
275 int efa_com_query_qp(struct efa_com_dev *edev,
276 struct efa_com_query_qp_params *params,
277 struct efa_com_query_qp_result *result);
278 int efa_com_destroy_qp(struct efa_com_dev *edev,
279 struct efa_com_destroy_qp_params *params);
280 int efa_com_create_cq(struct efa_com_dev *edev,
281 struct efa_com_create_cq_params *params,
282 struct efa_com_create_cq_result *result);
283 int efa_com_destroy_cq(struct efa_com_dev *edev,
284 struct efa_com_destroy_cq_params *params);
285 int efa_com_register_mr(struct efa_com_dev *edev,
286 struct efa_com_reg_mr_params *params,
287 struct efa_com_reg_mr_result *result);
288 int efa_com_dereg_mr(struct efa_com_dev *edev,
289 struct efa_com_dereg_mr_params *params);
290 int efa_com_create_ah(struct efa_com_dev *edev,
291 struct efa_com_create_ah_params *params,
292 struct efa_com_create_ah_result *result);
293 int efa_com_destroy_ah(struct efa_com_dev *edev,
294 struct efa_com_destroy_ah_params *params);
295 int efa_com_get_device_attr(struct efa_com_dev *edev,
296 struct efa_com_get_device_attr_result *result);
297 int efa_com_get_hw_hints(struct efa_com_dev *edev,
298 struct efa_com_get_hw_hints_result *result);
300 efa_com_check_supported_feature_id(struct efa_com_dev *edev,
301 enum efa_admin_aq_feature_id feature_id);
302 int efa_com_set_feature_ex(struct efa_com_dev *edev,
303 struct efa_admin_set_feature_resp *set_resp,
304 struct efa_admin_set_feature_cmd *set_cmd,
305 enum efa_admin_aq_feature_id feature_id,
306 dma_addr_t control_buf_dma_addr,
307 u32 control_buff_size);
308 int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups);
309 int efa_com_alloc_pd(struct efa_com_dev *edev,
310 struct efa_com_alloc_pd_result *result);
311 int efa_com_dealloc_pd(struct efa_com_dev *edev,
312 struct efa_com_dealloc_pd_params *params);
313 int efa_com_alloc_uar(struct efa_com_dev *edev,
314 struct efa_com_alloc_uar_result *result);
315 int efa_com_dealloc_uar(struct efa_com_dev *edev,
316 struct efa_com_dealloc_uar_params *params);
317 int efa_com_get_stats(struct efa_com_dev *edev,
318 struct efa_com_get_stats_params *params,
319 union efa_com_get_stats_result *result);
321 #endif /* _EFA_COM_CMD_H_ */