1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ 2 /* QLogic qed NIC Driver 3 * Copyright (c) 2015-2017 QLogic Corporation 4 * Copyright (c) 2019-2020 Marvell International Ltd. 5 */ 6 7 #ifndef _QED_CXT_H 8 #define _QED_CXT_H 9 10 #include <linux/types.h> 11 #include <linux/slab.h> 12 #include <linux/qed/qed_if.h> 13 #include "qed_hsi.h" 14 #include "qed.h" 15 16 struct qed_cxt_info { 17 void *p_cxt; 18 u32 iid; 19 enum protocol_type type; 20 }; 21 22 #define MAX_TID_BLOCKS 512 23 struct qed_tid_mem { 24 u32 tid_size; 25 u32 num_tids_per_block; 26 u32 waste; 27 u8 *blocks[MAX_TID_BLOCKS]; /* 4K */ 28 }; 29 30 /** 31 * @brief qedo_cid_get_cxt_info - Returns the context info for a specific cid 32 * 33 * 34 * @param p_hwfn 35 * @param p_info in/out 36 * 37 * @return int 38 */ 39 int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn, 40 struct qed_cxt_info *p_info); 41 42 /** 43 * @brief qed_cxt_get_tid_mem_info 44 * 45 * @param p_hwfn 46 * @param p_info 47 * 48 * @return int 49 */ 50 int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn, 51 struct qed_tid_mem *p_info); 52 53 #define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI 54 #define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE 55 #define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE 56 enum qed_cxt_elem_type { 57 QED_ELEM_CXT, 58 QED_ELEM_SRQ, 59 QED_ELEM_TASK, 60 QED_ELEM_XRC_SRQ, 61 }; 62 63 u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn, 64 enum protocol_type type, u32 *vf_cid); 65 66 /** 67 * @brief qed_cxt_set_pf_params - Set the PF params for cxt init 68 * 69 * @param p_hwfn 70 * @param rdma_tasks - requested maximum 71 * @return int 72 */ 73 int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn, u32 rdma_tasks); 74 75 /** 76 * @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters 77 * 78 * @param p_hwfn 79 * @param last_line 80 * 81 * @return int 82 */ 83 int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn, u32 *last_line); 84 85 /** 86 * @brief qed_cxt_cfg_ilt_compute_excess - how many lines can be decreased 87 * 88 * @param p_hwfn 89 * @param used_lines 90 */ 91 u32 qed_cxt_cfg_ilt_compute_excess(struct qed_hwfn *p_hwfn, u32 used_lines); 92 93 /** 94 * @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct 95 * 96 * @param p_hwfn 97 * 98 * @return int 99 */ 100 int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn); 101 102 /** 103 * @brief qed_cxt_mngr_free 104 * 105 * @param p_hwfn 106 */ 107 void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn); 108 109 /** 110 * @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map 111 * 112 * @param p_hwfn 113 * 114 * @return int 115 */ 116 int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn); 117 118 /** 119 * @brief qed_cxt_mngr_setup - Reset the acquired CIDs 120 * 121 * @param p_hwfn 122 */ 123 void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn); 124 125 /** 126 * @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path. 127 * 128 * 129 * 130 * @param p_hwfn 131 */ 132 void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn); 133 134 /** 135 * @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path. 136 * 137 * @param p_hwfn 138 * @param p_ptt 139 */ 140 void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 141 142 /** 143 * @brief qed_qm_init_pf - Initailze the QM PF phase, per path 144 * 145 * @param p_hwfn 146 * @param p_ptt 147 * @param is_pf_loading 148 */ 149 void qed_qm_init_pf(struct qed_hwfn *p_hwfn, 150 struct qed_ptt *p_ptt, bool is_pf_loading); 151 152 /** 153 * @brief Reconfigures QM pf on the fly 154 * 155 * @param p_hwfn 156 * @param p_ptt 157 * 158 * @return int 159 */ 160 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 161 162 #define QED_CXT_PF_CID (0xff) 163 164 /** 165 * @brief qed_cxt_release - Release a cid 166 * 167 * @param p_hwfn 168 * @param cid 169 */ 170 void qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid); 171 172 /** 173 * @brief qed_cxt_release - Release a cid belonging to a vf-queue 174 * 175 * @param p_hwfn 176 * @param cid 177 * @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF 178 */ 179 void _qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid, u8 vfid); 180 181 /** 182 * @brief qed_cxt_acquire - Acquire a new cid of a specific protocol type 183 * 184 * @param p_hwfn 185 * @param type 186 * @param p_cid 187 * 188 * @return int 189 */ 190 int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn, 191 enum protocol_type type, u32 *p_cid); 192 193 /** 194 * @brief _qed_cxt_acquire - Acquire a new cid of a specific protocol type 195 * for a vf-queue 196 * 197 * @param p_hwfn 198 * @param type 199 * @param p_cid 200 * @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF 201 * 202 * @return int 203 */ 204 int _qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn, 205 enum protocol_type type, u32 *p_cid, u8 vfid); 206 207 int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn, 208 enum qed_cxt_elem_type elem_type, u32 iid); 209 u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn, 210 enum protocol_type type); 211 u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn, 212 enum protocol_type type); 213 int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto); 214 215 #define QED_CTX_WORKING_MEM 0 216 #define QED_CTX_FL_MEM 1 217 int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn, 218 u32 tid, u8 ctx_type, void **task_ctx); 219 220 /* Max number of connection types in HW (DQ/CDU etc.) */ 221 #define MAX_CONN_TYPES PROTOCOLID_COMMON 222 #define NUM_TASK_TYPES 2 223 #define NUM_TASK_PF_SEGMENTS 4 224 #define NUM_TASK_VF_SEGMENTS 1 225 226 /* PF per protocl configuration object */ 227 #define TASK_SEGMENTS (NUM_TASK_PF_SEGMENTS + NUM_TASK_VF_SEGMENTS) 228 #define TASK_SEGMENT_VF (NUM_TASK_PF_SEGMENTS) 229 230 struct qed_tid_seg { 231 u32 count; 232 u8 type; 233 bool has_fl_mem; 234 }; 235 236 struct qed_conn_type_cfg { 237 u32 cid_count; 238 u32 cids_per_vf; 239 struct qed_tid_seg tid_seg[TASK_SEGMENTS]; 240 }; 241 242 /* ILT Client configuration, 243 * Per connection type (protocol) resources (cids, tis, vf cids etc.) 244 * 1 - for connection context (CDUC) and for each task context we need two 245 * values, for regular task context and for force load memory 246 */ 247 #define ILT_CLI_PF_BLOCKS (1 + NUM_TASK_PF_SEGMENTS * 2) 248 #define ILT_CLI_VF_BLOCKS (1 + NUM_TASK_VF_SEGMENTS * 2) 249 #define CDUC_BLK (0) 250 #define SRQ_BLK (0) 251 #define CDUT_SEG_BLK(n) (1 + (u8)(n)) 252 #define CDUT_FL_SEG_BLK(n, X) (1 + (n) + NUM_TASK_ ## X ## _SEGMENTS) 253 254 struct ilt_cfg_pair { 255 u32 reg; 256 u32 val; 257 }; 258 259 struct qed_ilt_cli_blk { 260 u32 total_size; /* 0 means not active */ 261 u32 real_size_in_page; 262 u32 start_line; 263 u32 dynamic_line_offset; 264 u32 dynamic_line_cnt; 265 }; 266 267 struct qed_ilt_client_cfg { 268 bool active; 269 270 /* ILT boundaries */ 271 struct ilt_cfg_pair first; 272 struct ilt_cfg_pair last; 273 struct ilt_cfg_pair p_size; 274 275 /* ILT client blocks for PF */ 276 struct qed_ilt_cli_blk pf_blks[ILT_CLI_PF_BLOCKS]; 277 u32 pf_total_lines; 278 279 /* ILT client blocks for VFs */ 280 struct qed_ilt_cli_blk vf_blks[ILT_CLI_VF_BLOCKS]; 281 u32 vf_total_lines; 282 }; 283 284 struct qed_cid_acquired_map { 285 u32 start_cid; 286 u32 max_count; 287 unsigned long *cid_map; 288 }; 289 290 struct qed_src_t2 { 291 struct phys_mem_desc *dma_mem; 292 u32 num_pages; 293 u64 first_free; 294 u64 last_free; 295 }; 296 297 struct qed_cxt_mngr { 298 /* Per protocl configuration */ 299 struct qed_conn_type_cfg conn_cfg[MAX_CONN_TYPES]; 300 301 /* computed ILT structure */ 302 struct qed_ilt_client_cfg clients[MAX_ILT_CLIENTS]; 303 304 /* Task type sizes */ 305 u32 task_type_size[NUM_TASK_TYPES]; 306 307 /* total number of VFs for this hwfn - 308 * ALL VFs are symmetric in terms of HW resources 309 */ 310 u32 vf_count; 311 u32 first_vf_in_pf; 312 313 /* Acquired CIDs */ 314 struct qed_cid_acquired_map acquired[MAX_CONN_TYPES]; 315 316 struct qed_cid_acquired_map 317 acquired_vf[MAX_CONN_TYPES][MAX_NUM_VFS]; 318 319 /* ILT shadow table */ 320 struct phys_mem_desc *ilt_shadow; 321 u32 ilt_shadow_size; 322 u32 pf_start_line; 323 324 /* Mutex for a dynamic ILT allocation */ 325 struct mutex mutex; 326 327 /* SRC T2 */ 328 struct qed_src_t2 src_t2; 329 330 /* total number of SRQ's for this hwfn */ 331 u32 srq_count; 332 u32 xrc_srq_count; 333 334 /* Maximal number of L2 steering filters */ 335 u32 arfs_count; 336 337 u8 task_type_id; 338 u16 task_ctx_size; 339 u16 conn_ctx_size; 340 }; 341 342 u16 qed_get_cdut_num_pf_init_pages(struct qed_hwfn *p_hwfn); 343 u16 qed_get_cdut_num_vf_init_pages(struct qed_hwfn *p_hwfn); 344 u16 qed_get_cdut_num_pf_work_pages(struct qed_hwfn *p_hwfn); 345 u16 qed_get_cdut_num_vf_work_pages(struct qed_hwfn *p_hwfn); 346 347 u32 qed_cxt_get_ilt_page_size(struct qed_hwfn *p_hwfn, 348 enum ilt_clients ilt_client); 349 350 u32 qed_cxt_get_total_srq_count(struct qed_hwfn *p_hwfn); 351 352 #endif 353