ceph/src/seastar/dpdk/drivers/bus/fslmc/mc/dpdmai.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2018 NXP
   3  */
   4
   5 #include <fsl_mc_sys.h>
   6 #include <fsl_mc_cmd.h>
   7 #include <fsl_dpdmai.h>
   8 #include <fsl_dpdmai_cmd.h>
   9
  10 /**
  11  * dpdmai_open() - Open a control session for the specified object
  12  * @mc_io:      Pointer to MC portal's I/O object
  13  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
  14  * @dpdmai_id:  DPDMAI unique ID
  15  * @token:      Returned token; use in subsequent API calls
  16  *
  17  * This function can be used to open a control session for an
  18  * already created object; an object may have been declared in
  19  * the DPL or by calling the dpdmai_create() function.
  20  * This function returns a unique authentication token,
  21  * associated with the specific object ID and the specific MC
  22  * portal; this token must be used in all subsequent commands for
  23  * this specific object.
  24  *
  25  * Return:      '0' on Success; Error code otherwise.
  26  */
  27 int dpdmai_open(struct fsl_mc_io *mc_io,
  28                 uint32_t cmd_flags,
  29                 int dpdmai_id,
  30                 uint16_t *token)
  31 {
  32         struct dpdmai_cmd_open *cmd_params;
  33         struct mc_command cmd = { 0 };
  34         int err;
  35
  36         /* prepare command */
  37         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_OPEN,
  38                                           cmd_flags,
  39                                           0);
  40         cmd_params = (struct dpdmai_cmd_open *)cmd.params;
  41         cmd_params->dpdmai_id = cpu_to_le32(dpdmai_id);
  42
  43         /* send command to mc*/
  44         err = mc_send_command(mc_io, &cmd);
  45         if (err)
  46                 return err;
  47
  48         /* retrieve response parameters */
  49         *token = mc_cmd_hdr_read_token(&cmd);
  50
  51         return 0;
  52 }
  53
  54 /**
  55  * dpdmai_close() - Close the control session of the object
  56  * @mc_io:      Pointer to MC portal's I/O object
  57  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
  58  * @token:      Token of DPDMAI object
  59  *
  60  * After this function is called, no further operations are
  61  * allowed on the object without opening a new control session.
  62  *
  63  * Return:      '0' on Success; Error code otherwise.
  64  */
  65 int dpdmai_close(struct fsl_mc_io *mc_io,
  66                  uint32_t cmd_flags,
  67                  uint16_t token)
  68 {
  69         struct mc_command cmd = { 0 };
  70
  71         /* prepare command */
  72         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CLOSE,
  73                                           cmd_flags, token);
  74
  75         /* send command to mc*/
  76         return mc_send_command(mc_io, &cmd);
  77 }
  78
  79 /**
  80  * dpdmai_create() - Create the DPDMAI object
  81  * @mc_io:      Pointer to MC portal's I/O object
  82  * @dprc_token: Parent container token; '0' for default container
  83  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
  84  * @cfg:        Configuration structure
  85  * @obj_id:     Returned object id
  86  *
  87  * Create the DPDMAI object, allocate required resources and
  88  * perform required initialization.
  89  *
  90  * The object can be created either by declaring it in the
  91  * DPL file, or by calling this function.
  92  *
  93  * The function accepts an authentication token of a parent
  94  * container that this object should be assigned to. The token
  95  * can be '0' so the object will be assigned to the default container.
  96  * The newly created object can be opened with the returned
  97  * object id and using the container's associated tokens and MC portals.
  98  *
  99  * Return:      '0' on Success; Error code otherwise.
 100  */
 101 int dpdmai_create(struct fsl_mc_io *mc_io,
 102                   uint16_t dprc_token,
 103                   uint32_t cmd_flags,
 104                   const struct dpdmai_cfg *cfg,
 105                   uint32_t *obj_id)
 106 {
 107         struct dpdmai_cmd_create *cmd_params;
 108         struct mc_command cmd = { 0 };
 109         int err;
 110
 111         /* prepare command */
 112         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CREATE,
 113                                           cmd_flags,
 114                                           dprc_token);
 115         cmd_params = (struct dpdmai_cmd_create *)cmd.params;
 116         cmd_params->num_queues = cfg->num_queues;
 117         cmd_params->priorities[0] = cfg->priorities[0];
 118         cmd_params->priorities[1] = cfg->priorities[1];
 119
 120         /* send command to mc*/
 121         err = mc_send_command(mc_io, &cmd);
 122         if (err)
 123                 return err;
 124
 125         /* retrieve response parameters */
 126         *obj_id = mc_cmd_read_object_id(&cmd);
 127
 128         return 0;
 129 }
 130
 131 /**
 132  * dpdmai_destroy() - Destroy the DPDMAI object and release all its resources.
 133  * @mc_io:      Pointer to MC portal's I/O object
 134  * @dprc_token: Parent container token; '0' for default container
 135  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 136  * @object_id:  The object id; it must be a valid id within the container that
 137  *              created this object;
 138  *
 139  * The function accepts the authentication token of the parent container that
 140  * created the object (not the one that currently owns the object). The object
 141  * is searched within parent using the provided 'object_id'.
 142  * All tokens to the object must be closed before calling destroy.
 143  *
 144  * Return:      '0' on Success; error code otherwise.
 145  */
 146 int dpdmai_destroy(struct fsl_mc_io *mc_io,
 147                    uint16_t dprc_token,
 148                    uint32_t cmd_flags,
 149                    uint32_t object_id)
 150 {
 151         struct dpdmai_cmd_destroy *cmd_params;
 152         struct mc_command cmd = { 0 };
 153
 154         /* prepare command */
 155         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DESTROY,
 156                                           cmd_flags,
 157                                           dprc_token);
 158         cmd_params = (struct dpdmai_cmd_destroy *)cmd.params;
 159         cmd_params->dpdmai_id = cpu_to_le32(object_id);
 160
 161         /* send command to mc*/
 162         return mc_send_command(mc_io, &cmd);
 163 }
 164
 165 /**
 166  * dpdmai_enable() - Enable the DPDMAI, allow sending and receiving frames.
 167  * @mc_io:      Pointer to MC portal's I/O object
 168  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 169  * @token:      Token of DPDMAI object
 170  *
 171  * Return:      '0' on Success; Error code otherwise.
 172  */
 173 int dpdmai_enable(struct fsl_mc_io *mc_io,
 174                   uint32_t cmd_flags,
 175                   uint16_t token)
 176 {
 177         struct mc_command cmd = { 0 };
 178
 179         /* prepare command */
 180         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_ENABLE,
 181                                           cmd_flags,
 182                                           token);
 183
 184         /* send command to mc*/
 185         return mc_send_command(mc_io, &cmd);
 186 }
 187
 188 /**
 189  * dpdmai_disable() - Disable the DPDMAI, stop sending and receiving frames.
 190  * @mc_io:      Pointer to MC portal's I/O object
 191  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 192  * @token:      Token of DPDMAI object
 193  *
 194  * Return:      '0' on Success; Error code otherwise.
 195  */
 196 int dpdmai_disable(struct fsl_mc_io *mc_io,
 197                    uint32_t cmd_flags,
 198                    uint16_t token)
 199 {
 200         struct mc_command cmd = { 0 };
 201
 202         /* prepare command */
 203         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DISABLE,
 204                                           cmd_flags,
 205                                           token);
 206
 207         /* send command to mc*/
 208         return mc_send_command(mc_io, &cmd);
 209 }
 210
 211 /**
 212  * dpdmai_is_enabled() - Check if the DPDMAI is enabled.
 213  * @mc_io:      Pointer to MC portal's I/O object
 214  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 215  * @token:      Token of DPDMAI object
 216  * @en:         Returns '1' if object is enabled; '0' otherwise
 217  *
 218  * Return:      '0' on Success; Error code otherwise.
 219  */
 220 int dpdmai_is_enabled(struct fsl_mc_io *mc_io,
 221                       uint32_t cmd_flags,
 222                       uint16_t token,
 223                       int *en)
 224 {
 225         struct dpdmai_rsp_is_enabled *rsp_params;
 226         struct mc_command cmd = { 0 };
 227         int err;
 228
 229         /* prepare command */
 230         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_IS_ENABLED,
 231                                           cmd_flags,
 232                                           token);
 233
 234         /* send command to mc*/
 235         err = mc_send_command(mc_io, &cmd);
 236         if (err)
 237                 return err;
 238
 239         /* retrieve response parameters */
 240         rsp_params = (struct dpdmai_rsp_is_enabled *)cmd.params;
 241         *en = dpdmai_get_field(rsp_params->en, ENABLE);
 242
 243         return 0;
 244 }
 245
 246 /**
 247  * dpdmai_reset() - Reset the DPDMAI, returns the object to initial state.
 248  * @mc_io:      Pointer to MC portal's I/O object
 249  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 250  * @token:      Token of DPDMAI object
 251  *
 252  * Return:      '0' on Success; Error code otherwise.
 253  */
 254 int dpdmai_reset(struct fsl_mc_io *mc_io,
 255                  uint32_t cmd_flags,
 256                  uint16_t token)
 257 {
 258         struct mc_command cmd = { 0 };
 259
 260         /* prepare command */
 261         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_RESET,
 262                                           cmd_flags,
 263                                           token);
 264
 265         /* send command to mc*/
 266         return mc_send_command(mc_io, &cmd);
 267 }
 268
 269 /**
 270  * dpdmai_get_attributes() - Retrieve DPDMAI attributes.
 271  * @mc_io:      Pointer to MC portal's I/O object
 272  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 273  * @token:      Token of DPDMAI object
 274  * @attr:       Returned object's attributes
 275  *
 276  * Return:      '0' on Success; Error code otherwise.
 277  */
 278 int dpdmai_get_attributes(struct fsl_mc_io *mc_io,
 279                           uint32_t cmd_flags,
 280                           uint16_t token,
 281                           struct dpdmai_attr *attr)
 282 {
 283         struct dpdmai_rsp_get_attr *rsp_params;
 284         struct mc_command cmd = { 0 };
 285         int err;
 286
 287         /* prepare command */
 288         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_ATTR,
 289                                           cmd_flags,
 290                                           token);
 291
 292         /* send command to mc*/
 293         err = mc_send_command(mc_io, &cmd);
 294         if (err)
 295                 return err;
 296
 297         /* retrieve response parameters */
 298         rsp_params = (struct dpdmai_rsp_get_attr *)cmd.params;
 299         attr->id = le32_to_cpu(rsp_params->id);
 300         attr->num_of_priorities = rsp_params->num_of_priorities;
 301         attr->num_of_queues = rsp_params->num_of_queues;
 302
 303         return 0;
 304 }
 305
 306 /**
 307  * dpdmai_set_rx_queue() - Set Rx queue configuration
 308  * @mc_io:      Pointer to MC portal's I/O object
 309  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 310  * @token:      Token of DPDMAI object
 311  * @queue_idx: Rx queue index. Accepted values are form 0 to num_queues
 312  *              parameter provided in dpdmai_create
 313  * @priority:   Select the queue relative to number of
 314  *              priorities configured at DPDMAI creation; use
 315  *              DPDMAI_ALL_QUEUES to configure all Rx queues
 316  *              identically.
 317  * @cfg:        Rx queue configuration
 318  *
 319  * Return:      '0' on Success; Error code otherwise.
 320  */
 321 int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io,
 322                         uint32_t cmd_flags,
 323                         uint16_t token,
 324                         uint8_t queue_idx,
 325                         uint8_t priority,
 326                         const struct dpdmai_rx_queue_cfg *cfg)
 327 {
 328         struct dpdmai_cmd_set_rx_queue *cmd_params;
 329         struct mc_command cmd = { 0 };
 330
 331         /* prepare command */
 332         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_SET_RX_QUEUE,
 333                                           cmd_flags,
 334                                           token);
 335         cmd_params = (struct dpdmai_cmd_set_rx_queue *)cmd.params;
 336         cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
 337         cmd_params->dest_priority = cfg->dest_cfg.priority;
 338         cmd_params->priority = priority;
 339         cmd_params->queue_idx = queue_idx;
 340         cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
 341         cmd_params->options = cpu_to_le32(cfg->options);
 342         dpdmai_set_field(cmd_params->dest_type,
 343                          DEST_TYPE,
 344                          cfg->dest_cfg.dest_type);
 345
 346         /* send command to mc*/
 347         return mc_send_command(mc_io, &cmd);
 348 }
 349
 350 /**
 351  * dpdmai_get_rx_queue() - Retrieve Rx queue attributes.
 352  * @mc_io:      Pointer to MC portal's I/O object
 353  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 354  * @token:      Token of DPDMAI object
 355  * @queue_idx: Rx queue index. Accepted values are form 0 to num_queues
 356  *              parameter provided in dpdmai_create
 357  * @priority:   Select the queue relative to number of
 358  *              priorities configured at DPDMAI creation
 359  * @attr:       Returned Rx queue attributes
 360  *
 361  * Return:      '0' on Success; Error code otherwise.
 362  */
 363 int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io,
 364                         uint32_t cmd_flags,
 365                         uint16_t token,
 366                         uint8_t queue_idx,
 367                         uint8_t priority,
 368                         struct dpdmai_rx_queue_attr *attr)
 369 {
 370         struct dpdmai_cmd_get_queue *cmd_params;
 371         struct dpdmai_rsp_get_rx_queue *rsp_params;
 372         struct mc_command cmd = { 0 };
 373         int err;
 374
 375         /* prepare command */
 376         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_RX_QUEUE,
 377                                           cmd_flags,
 378                                           token);
 379         cmd_params = (struct dpdmai_cmd_get_queue *)cmd.params;
 380         cmd_params->priority = priority;
 381         cmd_params->queue_idx = queue_idx;
 382
 383         /* send command to mc*/
 384         err = mc_send_command(mc_io, &cmd);
 385         if (err)
 386                 return err;
 387
 388         /* retrieve response parameters */
 389         rsp_params = (struct dpdmai_rsp_get_rx_queue *)cmd.params;
 390         attr->user_ctx = le64_to_cpu(rsp_params->user_ctx);
 391         attr->fqid = le32_to_cpu(rsp_params->fqid);
 392         attr->dest_cfg.dest_id = le32_to_cpu(rsp_params->dest_id);
 393         attr->dest_cfg.priority = le32_to_cpu(rsp_params->dest_priority);
 394         attr->dest_cfg.dest_type = dpdmai_get_field(rsp_params->dest_type,
 395                                                     DEST_TYPE);
 396
 397         return 0;
 398 }
 399
 400 /**
 401  * dpdmai_get_tx_queue() - Retrieve Tx queue attributes.
 402  * @mc_io:      Pointer to MC portal's I/O object
 403  * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 404  * @token:      Token of DPDMAI object
 405  * @queue_idx: Tx queue index. Accepted values are form 0 to num_queues
 406  *              parameter provided in dpdmai_create
 407  * @priority:   Select the queue relative to number of
 408  *              priorities configured at DPDMAI creation
 409  * @attr:       Returned Tx queue attributes
 410  *
 411  * Return:      '0' on Success; Error code otherwise.
 412  */
 413 int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io,
 414                         uint32_t cmd_flags,
 415                         uint16_t token,
 416                         uint8_t queue_idx,
 417                         uint8_t priority,
 418                         struct dpdmai_tx_queue_attr *attr)
 419 {
 420         struct dpdmai_cmd_get_queue *cmd_params;
 421         struct dpdmai_rsp_get_tx_queue *rsp_params;
 422         struct mc_command cmd = { 0 };
 423         int err;
 424
 425         /* prepare command */
 426         cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_TX_QUEUE,
 427                                           cmd_flags,
 428                                           token);
 429         cmd_params = (struct dpdmai_cmd_get_queue *)cmd.params;
 430         cmd_params->priority = priority;
 431         cmd_params->queue_idx = queue_idx;
 432
 433         /* send command to mc*/
 434         err = mc_send_command(mc_io, &cmd);
 435         if (err)
 436                 return err;
 437
 438         /* retrieve response parameters */
 439         rsp_params = (struct dpdmai_rsp_get_tx_queue *)cmd.params;
 440         attr->fqid = le32_to_cpu(rsp_params->fqid);
 441
 442         return 0;
 443 }