drivers/net/qede/base/ecore_cxt.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright (c) 2016 - 2018 Cavium Inc.
   3  * All rights reserved.
   4  * www.cavium.com
   5  */
   6
   7 #ifndef _ECORE_CID_
   8 #define _ECORE_CID_
   9
  10 #include "ecore_hsi_common.h"
  11 #include "ecore_proto_if.h"
  12 #include "ecore_cxt_api.h"
  13
  14 /* Tasks segments definitions  */
  15 #define ECORE_CXT_ISCSI_TID_SEG                 PROTOCOLID_ISCSI        /* 0 */
  16 #define ECORE_CXT_FCOE_TID_SEG                  PROTOCOLID_FCOE         /* 1 */
  17 #define ECORE_CXT_ROCE_TID_SEG                  PROTOCOLID_ROCE         /* 2 */
  18
  19 enum ecore_cxt_elem_type {
  20         ECORE_ELEM_CXT,
  21         ECORE_ELEM_SRQ,
  22         ECORE_ELEM_TASK
  23 };
  24
  25 enum ilt_clients {
  26         ILT_CLI_CDUC,
  27         ILT_CLI_CDUT,
  28         ILT_CLI_QM,
  29         ILT_CLI_TM,
  30         ILT_CLI_SRC,
  31         ILT_CLI_TSDM,
  32         ILT_CLI_RGFS,
  33         ILT_CLI_TGFS,
  34         MAX_ILT_CLIENTS
  35 };
  36
  37 u32 ecore_cxt_get_proto_cid_count(struct ecore_hwfn *p_hwfn,
  38                                   enum protocol_type type,
  39                                   u32 *vf_cid);
  40
  41 u32 ecore_cxt_get_proto_tid_count(struct ecore_hwfn *p_hwfn,
  42                                   enum protocol_type type);
  43
  44 u32 ecore_cxt_get_proto_cid_start(struct ecore_hwfn *p_hwfn,
  45                                   enum protocol_type type);
  46 u32 ecore_cxt_get_srq_count(struct ecore_hwfn *p_hwfn);
  47
  48 /**
  49  * @brief ecore_cxt_set_pf_params - Set the PF params for cxt init
  50  *
  51  * @param p_hwfn
  52  *
  53  * @return enum _ecore_status_t
  54  */
  55 enum _ecore_status_t ecore_cxt_set_pf_params(struct ecore_hwfn *p_hwfn);
  56
  57 /**
  58  * @brief ecore_cxt_cfg_ilt_compute - compute ILT init parameters
  59  *
  60  * @param p_hwfn
  61  *
  62  * @return enum _ecore_status_t
  63  */
  64 enum _ecore_status_t ecore_cxt_cfg_ilt_compute(struct ecore_hwfn *p_hwfn);
  65
  66 /**
  67  * @brief ecore_cxt_mngr_alloc - Allocate and init the context manager struct
  68  *
  69  * @param p_hwfn
  70  *
  71  * @return enum _ecore_status_t
  72  */
  73 enum _ecore_status_t ecore_cxt_mngr_alloc(struct ecore_hwfn *p_hwfn);
  74
  75 /**
  76  * @brief ecore_cxt_mngr_free
  77  *
  78  * @param p_hwfn
  79  */
  80 void ecore_cxt_mngr_free(struct ecore_hwfn *p_hwfn);
  81
  82 /**
  83  * @brief ecore_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired
  84  *        map
  85  *
  86  * @param p_hwfn
  87  *
  88  * @return enum _ecore_status_t
  89  */
  90 enum _ecore_status_t ecore_cxt_tables_alloc(struct ecore_hwfn *p_hwfn);
  91
  92 /**
  93  * @brief ecore_cxt_mngr_setup - Reset the acquired CIDs
  94  *
  95  * @param p_hwfn
  96  */
  97 void ecore_cxt_mngr_setup(struct ecore_hwfn *p_hwfn);
  98
  99 /**
 100  * @brief ecore_cxt_hw_init_common - Initailze ILT and DQ, common phase, per
 101  *        path.
 102  *
 103  * @param p_hwfn
 104  */
 105 void ecore_cxt_hw_init_common(struct ecore_hwfn *p_hwfn);
 106
 107 /**
 108  * @brief ecore_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path.
 109  *
 110  * @param p_hwfn
 111  * @param p_ptt
 112  */
 113 void ecore_cxt_hw_init_pf(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt);
 114
 115 /**
 116  * @brief ecore_qm_init_pf - Initailze the QM PF phase, per path
 117  *
 118  * @param p_hwfn
 119  * @param p_ptt
 120  * @param is_pf_loading
 121  */
 122 void ecore_qm_init_pf(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 123                       bool is_pf_loading);
 124
 125  /**
 126  * @brief Reconfigures QM pf on the fly
 127  *
 128  * @param p_hwfn
 129  * @param p_ptt
 130  *
 131  * @return enum _ecore_status_t
 132  */
 133 enum _ecore_status_t ecore_qm_reconf(struct ecore_hwfn *p_hwfn,
 134                                      struct ecore_ptt *p_ptt);
 135
 136 #define ECORE_CXT_PF_CID (0xff)
 137
 138 /**
 139  * @brief ecore_cxt_release - Release a cid
 140  *
 141  * @param p_hwfn
 142  * @param cid
 143  */
 144 void ecore_cxt_release_cid(struct ecore_hwfn *p_hwfn, u32 cid);
 145
 146 /**
 147  * @brief ecore_cxt_release - Release a cid belonging to a vf-queue
 148  *
 149  * @param p_hwfn
 150  * @param cid
 151  * @param vfid - engine relative index. ECORE_CXT_PF_CID if belongs to PF
 152  */
 153 void _ecore_cxt_release_cid(struct ecore_hwfn *p_hwfn,
 154                             u32 cid, u8 vfid);
 155
 156 /**
 157  * @brief ecore_cxt_acquire - Acquire a new cid of a specific protocol type
 158  *
 159  * @param p_hwfn
 160  * @param type
 161  * @param p_cid
 162  *
 163  * @return enum _ecore_status_t
 164  */
 165 enum _ecore_status_t ecore_cxt_acquire_cid(struct ecore_hwfn *p_hwfn,
 166                                            enum protocol_type type,
 167                                            u32 *p_cid);
 168
 169 /**
 170  * @brief _ecore_cxt_acquire - Acquire a new cid of a specific protocol type
 171  *                             for a vf-queue
 172  *
 173  * @param p_hwfn
 174  * @param type
 175  * @param p_cid
 176  * @param vfid - engine relative index. ECORE_CXT_PF_CID if belongs to PF
 177  *
 178  * @return enum _ecore_status_t
 179  */
 180 enum _ecore_status_t _ecore_cxt_acquire_cid(struct ecore_hwfn *p_hwfn,
 181                                             enum protocol_type type,
 182                                             u32 *p_cid, u8 vfid);
 183
 184 /**
 185  * @brief ecore_cxt_get_tid_mem_info - function checks if the
 186  *        page containing the iid in the ilt is already
 187  *        allocated, if it is not it allocates the page.
 188  *
 189  * @param p_hwfn
 190  * @param elem_type
 191  * @param iid
 192  *
 193  * @return enum _ecore_status_t
 194  */
 195 enum _ecore_status_t
 196 ecore_cxt_dynamic_ilt_alloc(struct ecore_hwfn *p_hwfn,
 197                             enum ecore_cxt_elem_type elem_type,
 198                             u32 iid);
 199
 200 /**
 201  * @brief ecore_cxt_free_proto_ilt - function frees ilt pages
 202  *        associated with the protocol passed.
 203  *
 204  * @param p_hwfn
 205  * @param proto
 206  *
 207  * @return enum _ecore_status_t
 208  */
 209 enum _ecore_status_t ecore_cxt_free_proto_ilt(struct ecore_hwfn *p_hwfn,
 210                                               enum protocol_type proto);
 211
 212 #define ECORE_CTX_WORKING_MEM 0
 213 #define ECORE_CTX_FL_MEM 1
 214
 215 /* Max number of connection types in HW (DQ/CDU etc.) */
 216 #define MAX_CONN_TYPES          PROTOCOLID_COMMON
 217 #define NUM_TASK_TYPES          2
 218 #define NUM_TASK_PF_SEGMENTS    4
 219 #define NUM_TASK_VF_SEGMENTS    1
 220
 221 /* PF per protocol configuration object */
 222 #define TASK_SEGMENTS   (NUM_TASK_PF_SEGMENTS + NUM_TASK_VF_SEGMENTS)
 223 #define TASK_SEGMENT_VF (NUM_TASK_PF_SEGMENTS)
 224
 225 struct ecore_tid_seg {
 226         u32 count;
 227         u8 type;
 228         bool has_fl_mem;
 229 };
 230
 231 struct ecore_conn_type_cfg {
 232         u32 cid_count;
 233         u32 cids_per_vf;
 234         struct ecore_tid_seg tid_seg[TASK_SEGMENTS];
 235 };
 236
 237 /* ILT Client configuration,
 238  * Per connection type (protocol) resources (cids, tis, vf cids etc.)
 239  * 1 - for connection context (CDUC) and for each task context we need two
 240  * values, for regular task context and for force load memory
 241  */
 242 #define ILT_CLI_PF_BLOCKS       (1 + NUM_TASK_PF_SEGMENTS * 2)
 243 #define ILT_CLI_VF_BLOCKS       (1 + NUM_TASK_VF_SEGMENTS * 2)
 244 #define CDUC_BLK                (0)
 245 #define SRQ_BLK                 (0)
 246 #define CDUT_SEG_BLK(n)         (1 + (u8)(n))
 247 #define CDUT_FL_SEG_BLK(n, X)   (1 + (n) + NUM_TASK_##X##_SEGMENTS)
 248
 249 struct ilt_cfg_pair {
 250         u32 reg;
 251         u32 val;
 252 };
 253
 254 struct ecore_ilt_cli_blk {
 255         u32 total_size;         /* 0 means not active */
 256         u32 real_size_in_page;
 257         u32 start_line;
 258         u32 dynamic_line_offset;
 259         u32 dynamic_line_cnt;
 260 };
 261
 262 struct ecore_ilt_client_cfg {
 263         bool active;
 264
 265         /* ILT boundaries */
 266         struct ilt_cfg_pair first;
 267         struct ilt_cfg_pair last;
 268         struct ilt_cfg_pair p_size;
 269
 270         /* ILT client blocks for PF */
 271         struct ecore_ilt_cli_blk pf_blks[ILT_CLI_PF_BLOCKS];
 272         u32 pf_total_lines;
 273
 274         /* ILT client blocks for VFs */
 275         struct ecore_ilt_cli_blk vf_blks[ILT_CLI_VF_BLOCKS];
 276         u32 vf_total_lines;
 277 };
 278
 279 #define MAP_WORD_SIZE           sizeof(unsigned long)
 280 #define BITS_PER_MAP_WORD       (MAP_WORD_SIZE * 8)
 281
 282 struct ecore_cid_acquired_map {
 283         u32 start_cid;
 284         u32 max_count;
 285         u32 *cid_map;
 286 };
 287
 288 struct ecore_src_t2 {
 289         struct phys_mem_desc    *dma_mem;
 290         u32                     num_pages;
 291         u64                     first_free;
 292         u64                     last_free;
 293 };
 294
 295 struct ecore_cxt_mngr {
 296         /* Per protocol configuration */
 297         struct ecore_conn_type_cfg      conn_cfg[MAX_CONN_TYPES];
 298
 299         /* computed ILT structure */
 300         struct ecore_ilt_client_cfg     clients[MAX_ILT_CLIENTS];
 301
 302         /* Task type sizes */
 303         u32                             task_type_size[NUM_TASK_TYPES];
 304
 305         /* total number of VFs for this hwfn -
 306          * ALL VFs are symmetric in terms of HW resources
 307          */
 308         u32                             vf_count;
 309         u32                             first_vf_in_pf;
 310
 311         /* Acquired CIDs */
 312         struct ecore_cid_acquired_map acquired[MAX_CONN_TYPES];
 313         struct ecore_cid_acquired_map *acquired_vf[MAX_CONN_TYPES];
 314
 315         /* ILT  shadow table */
 316         struct phys_mem_desc            *ilt_shadow;
 317         u32                             ilt_shadow_size;
 318         u32                             pf_start_line;
 319
 320         /* Mutex for a dynamic ILT allocation */
 321         osal_mutex_t mutex;
 322
 323         /* SRC T2 */
 324         struct ecore_src_t2             src_t2;
 325
 326         /* The infrastructure originally was very generic and context/task
 327          * oriented - per connection-type we would set how many of those
 328          * are needed, and later when determining how much memory we're
 329          * needing for a given block we'd iterate over all the relevant
 330          * connection-types.
 331          * But since then we've had some additional resources, some of which
 332          * require memory which is independent of the general context/task
 333          * scheme. We add those here explicitly per-feature.
 334          */
 335
 336         /* total number of SRQ's for this hwfn */
 337         u32                             srq_count;
 338
 339         /* Maximal number of L2 steering filters */
 340         u32                             arfs_count;
 341
 342         /* TODO - VF arfs filters ? */
 343
 344         u8                              task_type_id;
 345         u16                             task_ctx_size;
 346         u16                             conn_ctx_size;
 347 };
 348
 349 u16 ecore_get_cdut_num_pf_init_pages(struct ecore_hwfn *p_hwfn);
 350 u16 ecore_get_cdut_num_vf_init_pages(struct ecore_hwfn *p_hwfn);
 351 u16 ecore_get_cdut_num_pf_work_pages(struct ecore_hwfn *p_hwfn);
 352 u16 ecore_get_cdut_num_vf_work_pages(struct ecore_hwfn *p_hwfn);
 353 #endif /* _ECORE_CID_ */