1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
3 * Copyright 2018-2024 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;
31 u8 unsolicited_write_recv : 1;
34 struct efa_com_create_qp_result {
39 u32 llq_descriptors_offset;
44 struct efa_com_modify_qp_params {
51 u8 sq_drained_async_notify;
55 struct efa_com_query_qp_params {
59 struct efa_com_query_qp_result {
67 struct efa_com_destroy_qp_params {
71 struct efa_com_create_cq_params {
72 /* cq physical base address in OS memory */
74 /* completion queue depth in # of entries */
79 u8 entry_size_in_bytes;
80 u8 interrupt_mode_enabled : 1;
84 struct efa_com_create_cq_result {
87 /* actual cq depth in # of entries */
93 struct efa_com_destroy_cq_params {
97 struct efa_com_create_ah_params {
99 /* Destination address in network byte order */
100 u8 dest_addr[EFA_GID_SIZE];
103 struct efa_com_create_ah_result {
107 struct efa_com_destroy_ah_params {
112 struct efa_com_get_device_attr_result {
113 u8 addr[EFA_GID_SIZE];
119 u32 admin_api_version;
121 u32 supported_features;
125 u32 max_sq_depth; /* wqes */
126 u32 max_rq_depth; /* wqes */
128 u32 max_cq_depth; /* cqes */
138 u32 event_bitmask; /* EQ events bitmask */
145 u16 max_link_speed_gbps;
149 struct efa_com_get_hw_hints_result {
150 u16 mmio_read_timeout;
151 u16 driver_watchdog_timeout;
152 u16 admin_completion_timeout;
157 struct efa_com_mem_addr {
162 /* Used at indirect mode page list chunks for chaining */
163 struct efa_com_ctrl_buff_info {
164 /* indicates length of the buffer pointed by control_buffer_address. */
166 /* points to control buffer (direct or indirect) */
167 struct efa_com_mem_addr address;
170 struct efa_com_reg_mr_params {
171 /* Memory region length, in bytes. */
172 u64 mr_length_in_bytes;
173 /* IO Virtual Address associated with this MR. */
175 /* words 8:15: Physical Buffer List, each element is page-aligned. */
178 * Inline array of physical addresses of app pages
179 * (optimization for short region reservations)
181 u64 inline_pbl_array[4];
183 * Describes the next physically contiguous chunk of indirect
184 * page list. A page list contains physical addresses of command
185 * data pages. Data pages are 4KB; page list chunks are
188 struct efa_com_ctrl_buff_info pbl;
190 /* number of pages in PBL (redundant, could be calculated) */
192 /* Protection Domain */
195 * phys_page_size_shift - page size is (1 << phys_page_size_shift)
196 * Page size is used for building the Virtual to Physical
200 /* see permissions field of struct efa_admin_reg_mr_cmd */
206 struct efa_com_mr_interconnect_info {
210 u8 recv_ic_id_valid : 1;
211 u8 rdma_read_ic_id_valid : 1;
212 u8 rdma_recv_ic_id_valid : 1;
215 struct efa_com_reg_mr_result {
217 * To be used in conjunction with local buffers references in SQ and
222 * To be used in incoming RDMA semantics messages to refer to remotely
223 * accessed memory region
226 struct efa_com_mr_interconnect_info ic_info;
229 struct efa_com_dereg_mr_params {
233 struct efa_com_alloc_pd_result {
237 struct efa_com_dealloc_pd_params {
241 struct efa_com_alloc_uar_result {
245 struct efa_com_dealloc_uar_params {
249 struct efa_com_get_stats_params {
250 /* see enum efa_admin_get_stats_type */
252 /* see enum efa_admin_get_stats_scope */
257 struct efa_com_basic_stats {
265 struct efa_com_messages_stats {
272 struct efa_com_rdma_read_stats {
279 struct efa_com_rdma_write_stats {
283 u64 write_recv_bytes;
286 union efa_com_get_stats_result {
287 struct efa_com_basic_stats basic_stats;
288 struct efa_com_messages_stats messages_stats;
289 struct efa_com_rdma_read_stats rdma_read_stats;
290 struct efa_com_rdma_write_stats rdma_write_stats;
293 int efa_com_create_qp(struct efa_com_dev *edev,
294 struct efa_com_create_qp_params *params,
295 struct efa_com_create_qp_result *res);
296 int efa_com_modify_qp(struct efa_com_dev *edev,
297 struct efa_com_modify_qp_params *params);
298 int efa_com_query_qp(struct efa_com_dev *edev,
299 struct efa_com_query_qp_params *params,
300 struct efa_com_query_qp_result *result);
301 int efa_com_destroy_qp(struct efa_com_dev *edev,
302 struct efa_com_destroy_qp_params *params);
303 int efa_com_create_cq(struct efa_com_dev *edev,
304 struct efa_com_create_cq_params *params,
305 struct efa_com_create_cq_result *result);
306 int efa_com_destroy_cq(struct efa_com_dev *edev,
307 struct efa_com_destroy_cq_params *params);
308 int efa_com_register_mr(struct efa_com_dev *edev,
309 struct efa_com_reg_mr_params *params,
310 struct efa_com_reg_mr_result *result);
311 int efa_com_dereg_mr(struct efa_com_dev *edev,
312 struct efa_com_dereg_mr_params *params);
313 int efa_com_create_ah(struct efa_com_dev *edev,
314 struct efa_com_create_ah_params *params,
315 struct efa_com_create_ah_result *result);
316 int efa_com_destroy_ah(struct efa_com_dev *edev,
317 struct efa_com_destroy_ah_params *params);
318 int efa_com_get_device_attr(struct efa_com_dev *edev,
319 struct efa_com_get_device_attr_result *result);
320 int efa_com_get_hw_hints(struct efa_com_dev *edev,
321 struct efa_com_get_hw_hints_result *result);
323 efa_com_check_supported_feature_id(struct efa_com_dev *edev,
324 enum efa_admin_aq_feature_id feature_id);
325 int efa_com_set_feature_ex(struct efa_com_dev *edev,
326 struct efa_admin_set_feature_resp *set_resp,
327 struct efa_admin_set_feature_cmd *set_cmd,
328 enum efa_admin_aq_feature_id feature_id,
329 dma_addr_t control_buf_dma_addr,
330 u32 control_buff_size);
331 int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups);
332 int efa_com_alloc_pd(struct efa_com_dev *edev,
333 struct efa_com_alloc_pd_result *result);
334 int efa_com_dealloc_pd(struct efa_com_dev *edev,
335 struct efa_com_dealloc_pd_params *params);
336 int efa_com_alloc_uar(struct efa_com_dev *edev,
337 struct efa_com_alloc_uar_result *result);
338 int efa_com_dealloc_uar(struct efa_com_dev *edev,
339 struct efa_com_dealloc_uar_params *params);
340 int efa_com_get_stats(struct efa_com_dev *edev,
341 struct efa_com_get_stats_params *params,
342 union efa_com_get_stats_result *result);
344 #endif /* _EFA_COM_CMD_H_ */