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 * qed_cxt_get_cid_info(): Returns the context info for a specific cidi. 32 * 33 * @p_hwfn: HW device data. 34 * @p_info: In/out. 35 * 36 * Return: Int. 37 */ 38 int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn, 39 struct qed_cxt_info *p_info); 40 41 /** 42 * qed_cxt_get_tid_mem_info(): Returns the tid mem info. 43 * 44 * @p_hwfn: HW device data. 45 * @p_info: in/out. 46 * 47 * Return: int. 48 */ 49 int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn, 50 struct qed_tid_mem *p_info); 51 52 #define QED_CXT_TCP_ULP_TID_SEG PROTOCOLID_TCP_ULP 53 #define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE 54 #define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE 55 enum qed_cxt_elem_type { 56 QED_ELEM_CXT, 57 QED_ELEM_SRQ, 58 QED_ELEM_TASK, 59 QED_ELEM_XRC_SRQ, 60 }; 61 62 u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn, 63 enum protocol_type type, u32 *vf_cid); 64 65 /** 66 * qed_cxt_set_pf_params(): Set the PF params for cxt init. 67 * 68 * @p_hwfn: HW device data. 69 * @rdma_tasks: Requested maximum. 70 * 71 * Return: int. 72 */ 73 int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn, u32 rdma_tasks); 74 75 /** 76 * qed_cxt_cfg_ilt_compute(): Compute ILT init parameters. 77 * 78 * @p_hwfn: HW device data. 79 * @last_line: 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 * qed_cxt_cfg_ilt_compute_excess(): How many lines can be decreased. 87 * 88 * @p_hwfn: HW device data. 89 * @used_lines: Used lines. 90 * 91 * Return: Int. 92 */ 93 u32 qed_cxt_cfg_ilt_compute_excess(struct qed_hwfn *p_hwfn, u32 used_lines); 94 95 /** 96 * qed_cxt_mngr_alloc(): Allocate and init the context manager struct. 97 * 98 * @p_hwfn: HW device data. 99 * 100 * Return: Int. 101 */ 102 int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn); 103 104 /** 105 * qed_cxt_mngr_free() - Context manager free. 106 * 107 * @p_hwfn: HW device data. 108 * 109 * Return: Void. 110 */ 111 void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn); 112 113 /** 114 * qed_cxt_tables_alloc(): Allocate ILT shadow, Searcher T2, acquired map. 115 * 116 * @p_hwfn: HW device data. 117 * 118 * Return: Int. 119 */ 120 int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn); 121 122 /** 123 * qed_cxt_mngr_setup(): Reset the acquired CIDs. 124 * 125 * @p_hwfn: HW device data. 126 */ 127 void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn); 128 129 /** 130 * qed_cxt_hw_init_common(): Initailze ILT and DQ, common phase, per path. 131 * 132 * @p_hwfn: HW device data. 133 * 134 * Return: Void. 135 */ 136 void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn); 137 138 /** 139 * qed_cxt_hw_init_pf(): Initailze ILT and DQ, PF phase, per path. 140 * 141 * @p_hwfn: HW device data. 142 * @p_ptt: P_ptt. 143 * 144 * Return: Void. 145 */ 146 void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 147 148 /** 149 * qed_qm_init_pf(): Initailze the QM PF phase, per path. 150 * 151 * @p_hwfn: HW device data. 152 * @p_ptt: P_ptt. 153 * @is_pf_loading: Is pf pending. 154 * 155 * Return: Void. 156 */ 157 void qed_qm_init_pf(struct qed_hwfn *p_hwfn, 158 struct qed_ptt *p_ptt, bool is_pf_loading); 159 160 /** 161 * qed_qm_reconf(): Reconfigures QM pf on the fly. 162 * 163 * @p_hwfn: HW device data. 164 * @p_ptt: P_ptt. 165 * 166 * Return: Int. 167 */ 168 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 169 170 #define QED_CXT_PF_CID (0xff) 171 172 /** 173 * qed_cxt_release_cid(): Release a cid. 174 * 175 * @p_hwfn: HW device data. 176 * @cid: Cid. 177 * 178 * Return: Void. 179 */ 180 void qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid); 181 182 /** 183 * _qed_cxt_release_cid(): Release a cid belonging to a vf-queue. 184 * 185 * @p_hwfn: HW device data. 186 * @cid: Cid. 187 * @vfid: Engine relative index. QED_CXT_PF_CID if belongs to PF. 188 * 189 * Return: Void. 190 */ 191 void _qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid, u8 vfid); 192 193 /** 194 * qed_cxt_acquire_cid(): Acquire a new cid of a specific protocol type. 195 * 196 * @p_hwfn: HW device data. 197 * @type: Type. 198 * @p_cid: Pointer cid. 199 * 200 * Return: Int. 201 */ 202 int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn, 203 enum protocol_type type, u32 *p_cid); 204 205 /** 206 * _qed_cxt_acquire_cid(): Acquire a new cid of a specific protocol type 207 * for a vf-queue. 208 * 209 * @p_hwfn: HW device data. 210 * @type: Type. 211 * @p_cid: Pointer cid. 212 * @vfid: Engine relative index. QED_CXT_PF_CID if belongs to PF. 213 * 214 * Return: Int. 215 */ 216 int _qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn, 217 enum protocol_type type, u32 *p_cid, u8 vfid); 218 219 int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn, 220 enum qed_cxt_elem_type elem_type, u32 iid); 221 u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn, 222 enum protocol_type type); 223 u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn, 224 enum protocol_type type); 225 int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto); 226 227 #define QED_CTX_WORKING_MEM 0 228 #define QED_CTX_FL_MEM 1 229 int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn, 230 u32 tid, u8 ctx_type, void **task_ctx); 231 232 /* Max number of connection types in HW (DQ/CDU etc.) */ 233 #define MAX_CONN_TYPES PROTOCOLID_COMMON 234 #define NUM_TASK_TYPES 2 235 #define NUM_TASK_PF_SEGMENTS 4 236 #define NUM_TASK_VF_SEGMENTS 1 237 238 /* PF per protocl configuration object */ 239 #define TASK_SEGMENTS (NUM_TASK_PF_SEGMENTS + NUM_TASK_VF_SEGMENTS) 240 #define TASK_SEGMENT_VF (NUM_TASK_PF_SEGMENTS) 241 242 struct qed_tid_seg { 243 u32 count; 244 u8 type; 245 bool has_fl_mem; 246 }; 247 248 struct qed_conn_type_cfg { 249 u32 cid_count; 250 u32 cids_per_vf; 251 struct qed_tid_seg tid_seg[TASK_SEGMENTS]; 252 }; 253 254 /* ILT Client configuration, 255 * Per connection type (protocol) resources (cids, tis, vf cids etc.) 256 * 1 - for connection context (CDUC) and for each task context we need two 257 * values, for regular task context and for force load memory 258 */ 259 #define ILT_CLI_PF_BLOCKS (1 + NUM_TASK_PF_SEGMENTS * 2) 260 #define ILT_CLI_VF_BLOCKS (1 + NUM_TASK_VF_SEGMENTS * 2) 261 #define CDUC_BLK (0) 262 #define SRQ_BLK (0) 263 #define CDUT_SEG_BLK(n) (1 + (u8)(n)) 264 #define CDUT_FL_SEG_BLK(n, X) (1 + (n) + NUM_TASK_ ## X ## _SEGMENTS) 265 266 struct ilt_cfg_pair { 267 u32 reg; 268 u32 val; 269 }; 270 271 struct qed_ilt_cli_blk { 272 u32 total_size; /* 0 means not active */ 273 u32 real_size_in_page; 274 u32 start_line; 275 u32 dynamic_line_offset; 276 u32 dynamic_line_cnt; 277 }; 278 279 struct qed_ilt_client_cfg { 280 bool active; 281 282 /* ILT boundaries */ 283 struct ilt_cfg_pair first; 284 struct ilt_cfg_pair last; 285 struct ilt_cfg_pair p_size; 286 287 /* ILT client blocks for PF */ 288 struct qed_ilt_cli_blk pf_blks[ILT_CLI_PF_BLOCKS]; 289 u32 pf_total_lines; 290 291 /* ILT client blocks for VFs */ 292 struct qed_ilt_cli_blk vf_blks[ILT_CLI_VF_BLOCKS]; 293 u32 vf_total_lines; 294 }; 295 296 struct qed_cid_acquired_map { 297 u32 start_cid; 298 u32 max_count; 299 unsigned long *cid_map; 300 }; 301 302 struct qed_src_t2 { 303 struct phys_mem_desc *dma_mem; 304 u32 num_pages; 305 u64 first_free; 306 u64 last_free; 307 }; 308 309 struct qed_cxt_mngr { 310 /* Per protocl configuration */ 311 struct qed_conn_type_cfg conn_cfg[MAX_CONN_TYPES]; 312 313 /* computed ILT structure */ 314 struct qed_ilt_client_cfg clients[MAX_ILT_CLIENTS]; 315 316 /* Task type sizes */ 317 u32 task_type_size[NUM_TASK_TYPES]; 318 319 /* total number of VFs for this hwfn - 320 * ALL VFs are symmetric in terms of HW resources 321 */ 322 u32 vf_count; 323 u32 first_vf_in_pf; 324 325 /* Acquired CIDs */ 326 struct qed_cid_acquired_map acquired[MAX_CONN_TYPES]; 327 328 struct qed_cid_acquired_map 329 acquired_vf[MAX_CONN_TYPES][MAX_NUM_VFS]; 330 331 /* ILT shadow table */ 332 struct phys_mem_desc *ilt_shadow; 333 u32 ilt_shadow_size; 334 u32 pf_start_line; 335 336 /* Mutex for a dynamic ILT allocation */ 337 struct mutex mutex; 338 339 /* SRC T2 */ 340 struct qed_src_t2 src_t2; 341 342 /* total number of SRQ's for this hwfn */ 343 u32 srq_count; 344 u32 xrc_srq_count; 345 346 /* Maximal number of L2 steering filters */ 347 u32 arfs_count; 348 349 u16 iscsi_task_pages; 350 u16 fcoe_task_pages; 351 u16 roce_task_pages; 352 u16 eth_task_pages; 353 u16 task_ctx_size; 354 u16 conn_ctx_size; 355 }; 356 357 u16 qed_get_cdut_num_pf_init_pages(struct qed_hwfn *p_hwfn); 358 u16 qed_get_cdut_num_vf_init_pages(struct qed_hwfn *p_hwfn); 359 u16 qed_get_cdut_num_pf_work_pages(struct qed_hwfn *p_hwfn); 360 u16 qed_get_cdut_num_vf_work_pages(struct qed_hwfn *p_hwfn); 361 362 u32 qed_cxt_get_ilt_page_size(struct qed_hwfn *p_hwfn, 363 enum ilt_clients ilt_client); 364 365 u32 qed_cxt_get_total_srq_count(struct qed_hwfn *p_hwfn); 366 367 #endif 368