drivers/net/ethernet/intel/i40e/i40e_lan_hmc.c

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2014 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 #include "i40e_osdep.h"
  28 #include "i40e_register.h"
  29 #include "i40e_type.h"
  30 #include "i40e_hmc.h"
  31 #include "i40e_lan_hmc.h"
  32 #include "i40e_prototype.h"
  33
  34 /* lan specific interface functions */
  35
  36 /**
  37  * i40e_align_l2obj_base - aligns base object pointer to 512 bytes
  38  * @offset: base address offset needing alignment
  39  *
  40  * Aligns the layer 2 function private memory so it's 512-byte aligned.
  41  **/
  42 static u64 i40e_align_l2obj_base(u64 offset)
  43 {
  44         u64 aligned_offset = offset;
  45
  46         if ((offset % I40E_HMC_L2OBJ_BASE_ALIGNMENT) > 0)
  47                 aligned_offset += (I40E_HMC_L2OBJ_BASE_ALIGNMENT -
  48                                    (offset % I40E_HMC_L2OBJ_BASE_ALIGNMENT));
  49
  50         return aligned_offset;
  51 }
  52
  53 /**
  54  * i40e_calculate_l2fpm_size - calculates layer 2 FPM memory size
  55  * @txq_num: number of Tx queues needing backing context
  56  * @rxq_num: number of Rx queues needing backing context
  57  * @fcoe_cntx_num: amount of FCoE statefull contexts needing backing context
  58  * @fcoe_filt_num: number of FCoE filters needing backing context
  59  *
  60  * Calculates the maximum amount of memory for the function required, based
  61  * on the number of resources it must provide context for.
  62  **/
  63 static u64 i40e_calculate_l2fpm_size(u32 txq_num, u32 rxq_num,
  64                               u32 fcoe_cntx_num, u32 fcoe_filt_num)
  65 {
  66         u64 fpm_size = 0;
  67
  68         fpm_size = txq_num * I40E_HMC_OBJ_SIZE_TXQ;
  69         fpm_size = i40e_align_l2obj_base(fpm_size);
  70
  71         fpm_size += (rxq_num * I40E_HMC_OBJ_SIZE_RXQ);
  72         fpm_size = i40e_align_l2obj_base(fpm_size);
  73
  74         fpm_size += (fcoe_cntx_num * I40E_HMC_OBJ_SIZE_FCOE_CNTX);
  75         fpm_size = i40e_align_l2obj_base(fpm_size);
  76
  77         fpm_size += (fcoe_filt_num * I40E_HMC_OBJ_SIZE_FCOE_FILT);
  78         fpm_size = i40e_align_l2obj_base(fpm_size);
  79
  80         return fpm_size;
  81 }
  82
  83 /**
  84  * i40e_init_lan_hmc - initialize i40e_hmc_info struct
  85  * @hw: pointer to the HW structure
  86  * @txq_num: number of Tx queues needing backing context
  87  * @rxq_num: number of Rx queues needing backing context
  88  * @fcoe_cntx_num: amount of FCoE statefull contexts needing backing context
  89  * @fcoe_filt_num: number of FCoE filters needing backing context
  90  *
  91  * This function will be called once per physical function initialization.
  92  * It will fill out the i40e_hmc_obj_info structure for LAN objects based on
  93  * the driver's provided input, as well as information from the HMC itself
  94  * loaded from NVRAM.
  95  *
  96  * Assumptions:
  97  *   - HMC Resource Profile has been selected before calling this function.
  98  **/
  99 i40e_status i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
 100                                         u32 rxq_num, u32 fcoe_cntx_num,
 101                                         u32 fcoe_filt_num)
 102 {
 103         struct i40e_hmc_obj_info *obj, *full_obj;
 104         i40e_status ret_code = 0;
 105         u64 l2fpm_size;
 106         u32 size_exp;
 107
 108         hw->hmc.signature = I40E_HMC_INFO_SIGNATURE;
 109         hw->hmc.hmc_fn_id = hw->pf_id;
 110
 111         /* allocate memory for hmc_obj */
 112         ret_code = i40e_allocate_virt_mem(hw, &hw->hmc.hmc_obj_virt_mem,
 113                         sizeof(struct i40e_hmc_obj_info) * I40E_HMC_LAN_MAX);
 114         if (ret_code)
 115                 goto init_lan_hmc_out;
 116         hw->hmc.hmc_obj = (struct i40e_hmc_obj_info *)
 117                           hw->hmc.hmc_obj_virt_mem.va;
 118
 119         /* The full object will be used to create the LAN HMC SD */
 120         full_obj = &hw->hmc.hmc_obj[I40E_HMC_LAN_FULL];
 121         full_obj->max_cnt = 0;
 122         full_obj->cnt = 0;
 123         full_obj->base = 0;
 124         full_obj->size = 0;
 125
 126         /* Tx queue context information */
 127         obj = &hw->hmc.hmc_obj[I40E_HMC_LAN_TX];
 128         obj->max_cnt = rd32(hw, I40E_GLHMC_LANQMAX);
 129         obj->cnt = txq_num;
 130         obj->base = 0;
 131         size_exp = rd32(hw, I40E_GLHMC_LANTXOBJSZ);
 132         obj->size = BIT_ULL(size_exp);
 133
 134         /* validate values requested by driver don't exceed HMC capacity */
 135         if (txq_num > obj->max_cnt) {
 136                 ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 137                 hw_dbg(hw, "i40e_init_lan_hmc: Tx context: asks for 0x%x but max allowed is 0x%x, returns error %d\n",
 138                           txq_num, obj->max_cnt, ret_code);
 139                 goto init_lan_hmc_out;
 140         }
 141
 142         /* aggregate values into the full LAN object for later */
 143         full_obj->max_cnt += obj->max_cnt;
 144         full_obj->cnt += obj->cnt;
 145
 146         /* Rx queue context information */
 147         obj = &hw->hmc.hmc_obj[I40E_HMC_LAN_RX];
 148         obj->max_cnt = rd32(hw, I40E_GLHMC_LANQMAX);
 149         obj->cnt = rxq_num;
 150         obj->base = hw->hmc.hmc_obj[I40E_HMC_LAN_TX].base +
 151                     (hw->hmc.hmc_obj[I40E_HMC_LAN_TX].cnt *
 152                      hw->hmc.hmc_obj[I40E_HMC_LAN_TX].size);
 153         obj->base = i40e_align_l2obj_base(obj->base);
 154         size_exp = rd32(hw, I40E_GLHMC_LANRXOBJSZ);
 155         obj->size = BIT_ULL(size_exp);
 156
 157         /* validate values requested by driver don't exceed HMC capacity */
 158         if (rxq_num > obj->max_cnt) {
 159                 ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 160                 hw_dbg(hw, "i40e_init_lan_hmc: Rx context: asks for 0x%x but max allowed is 0x%x, returns error %d\n",
 161                           rxq_num, obj->max_cnt, ret_code);
 162                 goto init_lan_hmc_out;
 163         }
 164
 165         /* aggregate values into the full LAN object for later */
 166         full_obj->max_cnt += obj->max_cnt;
 167         full_obj->cnt += obj->cnt;
 168
 169         /* FCoE context information */
 170         obj = &hw->hmc.hmc_obj[I40E_HMC_FCOE_CTX];
 171         obj->max_cnt = rd32(hw, I40E_GLHMC_FCOEMAX);
 172         obj->cnt = fcoe_cntx_num;
 173         obj->base = hw->hmc.hmc_obj[I40E_HMC_LAN_RX].base +
 174                     (hw->hmc.hmc_obj[I40E_HMC_LAN_RX].cnt *
 175                      hw->hmc.hmc_obj[I40E_HMC_LAN_RX].size);
 176         obj->base = i40e_align_l2obj_base(obj->base);
 177         size_exp = rd32(hw, I40E_GLHMC_FCOEDDPOBJSZ);
 178         obj->size = BIT_ULL(size_exp);
 179
 180         /* validate values requested by driver don't exceed HMC capacity */
 181         if (fcoe_cntx_num > obj->max_cnt) {
 182                 ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 183                 hw_dbg(hw, "i40e_init_lan_hmc: FCoE context: asks for 0x%x but max allowed is 0x%x, returns error %d\n",
 184                           fcoe_cntx_num, obj->max_cnt, ret_code);
 185                 goto init_lan_hmc_out;
 186         }
 187
 188         /* aggregate values into the full LAN object for later */
 189         full_obj->max_cnt += obj->max_cnt;
 190         full_obj->cnt += obj->cnt;
 191
 192         /* FCoE filter information */
 193         obj = &hw->hmc.hmc_obj[I40E_HMC_FCOE_FILT];
 194         obj->max_cnt = rd32(hw, I40E_GLHMC_FCOEFMAX);
 195         obj->cnt = fcoe_filt_num;
 196         obj->base = hw->hmc.hmc_obj[I40E_HMC_FCOE_CTX].base +
 197                     (hw->hmc.hmc_obj[I40E_HMC_FCOE_CTX].cnt *
 198                      hw->hmc.hmc_obj[I40E_HMC_FCOE_CTX].size);
 199         obj->base = i40e_align_l2obj_base(obj->base);
 200         size_exp = rd32(hw, I40E_GLHMC_FCOEFOBJSZ);
 201         obj->size = BIT_ULL(size_exp);
 202
 203         /* validate values requested by driver don't exceed HMC capacity */
 204         if (fcoe_filt_num > obj->max_cnt) {
 205                 ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 206                 hw_dbg(hw, "i40e_init_lan_hmc: FCoE filter: asks for 0x%x but max allowed is 0x%x, returns error %d\n",
 207                           fcoe_filt_num, obj->max_cnt, ret_code);
 208                 goto init_lan_hmc_out;
 209         }
 210
 211         /* aggregate values into the full LAN object for later */
 212         full_obj->max_cnt += obj->max_cnt;
 213         full_obj->cnt += obj->cnt;
 214
 215         hw->hmc.first_sd_index = 0;
 216         hw->hmc.sd_table.ref_cnt = 0;
 217         l2fpm_size = i40e_calculate_l2fpm_size(txq_num, rxq_num, fcoe_cntx_num,
 218                                                fcoe_filt_num);
 219         if (NULL == hw->hmc.sd_table.sd_entry) {
 220                 hw->hmc.sd_table.sd_cnt = (u32)
 221                                    (l2fpm_size + I40E_HMC_DIRECT_BP_SIZE - 1) /
 222                                    I40E_HMC_DIRECT_BP_SIZE;
 223
 224                 /* allocate the sd_entry members in the sd_table */
 225                 ret_code = i40e_allocate_virt_mem(hw, &hw->hmc.sd_table.addr,
 226                                           (sizeof(struct i40e_hmc_sd_entry) *
 227                                           hw->hmc.sd_table.sd_cnt));
 228                 if (ret_code)
 229                         goto init_lan_hmc_out;
 230                 hw->hmc.sd_table.sd_entry =
 231                         (struct i40e_hmc_sd_entry *)hw->hmc.sd_table.addr.va;
 232         }
 233         /* store in the LAN full object for later */
 234         full_obj->size = l2fpm_size;
 235
 236 init_lan_hmc_out:
 237         return ret_code;
 238 }
 239
 240 /**
 241  * i40e_remove_pd_page - Remove a page from the page descriptor table
 242  * @hw: pointer to the HW structure
 243  * @hmc_info: pointer to the HMC configuration information structure
 244  * @idx: segment descriptor index to find the relevant page descriptor
 245  *
 246  * This function:
 247  *      1. Marks the entry in pd table (for paged address mode) invalid
 248  *      2. write to register PMPDINV to invalidate the backing page in FV cache
 249  *      3. Decrement the ref count for  pd_entry
 250  * assumptions:
 251  *      1. caller can deallocate the memory used by pd after this function
 252  *         returns.
 253  **/
 254 static i40e_status i40e_remove_pd_page(struct i40e_hw *hw,
 255                                                  struct i40e_hmc_info *hmc_info,
 256                                                  u32 idx)
 257 {
 258         i40e_status ret_code = 0;
 259
 260         if (!i40e_prep_remove_pd_page(hmc_info, idx))
 261                 ret_code = i40e_remove_pd_page_new(hw, hmc_info, idx, true);
 262
 263         return ret_code;
 264 }
 265
 266 /**
 267  * i40e_remove_sd_bp - remove a backing page from a segment descriptor
 268  * @hw: pointer to our HW structure
 269  * @hmc_info: pointer to the HMC configuration information structure
 270  * @idx: the page index
 271  *
 272  * This function:
 273  *      1. Marks the entry in sd table (for direct address mode) invalid
 274  *      2. write to register PMSDCMD, PMSDDATALOW(PMSDDATALOW.PMSDVALID set
 275  *         to 0) and PMSDDATAHIGH to invalidate the sd page
 276  *      3. Decrement the ref count for the sd_entry
 277  * assumptions:
 278  *      1. caller can deallocate the memory used by backing storage after this
 279  *         function returns.
 280  **/
 281 static i40e_status i40e_remove_sd_bp(struct i40e_hw *hw,
 282                                                struct i40e_hmc_info *hmc_info,
 283                                                u32 idx)
 284 {
 285         i40e_status ret_code = 0;
 286
 287         if (!i40e_prep_remove_sd_bp(hmc_info, idx))
 288                 ret_code = i40e_remove_sd_bp_new(hw, hmc_info, idx, true);
 289
 290         return ret_code;
 291 }
 292
 293 /**
 294  * i40e_create_lan_hmc_object - allocate backing store for hmc objects
 295  * @hw: pointer to the HW structure
 296  * @info: pointer to i40e_hmc_create_obj_info struct
 297  *
 298  * This will allocate memory for PDs and backing pages and populate
 299  * the sd and pd entries.
 300  **/
 301 static i40e_status i40e_create_lan_hmc_object(struct i40e_hw *hw,
 302                                 struct i40e_hmc_lan_create_obj_info *info)
 303 {
 304         i40e_status ret_code = 0;
 305         struct i40e_hmc_sd_entry *sd_entry;
 306         u32 pd_idx1 = 0, pd_lmt1 = 0;
 307         u32 pd_idx = 0, pd_lmt = 0;
 308         bool pd_error = false;
 309         u32 sd_idx, sd_lmt;
 310         u64 sd_size;
 311         u32 i, j;
 312
 313         if (NULL == info) {
 314                 ret_code = I40E_ERR_BAD_PTR;
 315                 hw_dbg(hw, "i40e_create_lan_hmc_object: bad info ptr\n");
 316                 goto exit;
 317         }
 318         if (NULL == info->hmc_info) {
 319                 ret_code = I40E_ERR_BAD_PTR;
 320                 hw_dbg(hw, "i40e_create_lan_hmc_object: bad hmc_info ptr\n");
 321                 goto exit;
 322         }
 323         if (I40E_HMC_INFO_SIGNATURE != info->hmc_info->signature) {
 324                 ret_code = I40E_ERR_BAD_PTR;
 325                 hw_dbg(hw, "i40e_create_lan_hmc_object: bad signature\n");
 326                 goto exit;
 327         }
 328
 329         if (info->start_idx >= info->hmc_info->hmc_obj[info->rsrc_type].cnt) {
 330                 ret_code = I40E_ERR_INVALID_HMC_OBJ_INDEX;
 331                 hw_dbg(hw, "i40e_create_lan_hmc_object: returns error %d\n",
 332                           ret_code);
 333                 goto exit;
 334         }
 335         if ((info->start_idx + info->count) >
 336             info->hmc_info->hmc_obj[info->rsrc_type].cnt) {
 337                 ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 338                 hw_dbg(hw, "i40e_create_lan_hmc_object: returns error %d\n",
 339                           ret_code);
 340                 goto exit;
 341         }
 342
 343         /* find sd index and limit */
 344         I40E_FIND_SD_INDEX_LIMIT(info->hmc_info, info->rsrc_type,
 345                                  info->start_idx, info->count,
 346                                  &sd_idx, &sd_lmt);
 347         if (sd_idx >= info->hmc_info->sd_table.sd_cnt ||
 348             sd_lmt > info->hmc_info->sd_table.sd_cnt) {
 349                         ret_code = I40E_ERR_INVALID_SD_INDEX;
 350                         goto exit;
 351         }
 352         /* find pd index */
 353         I40E_FIND_PD_INDEX_LIMIT(info->hmc_info, info->rsrc_type,
 354                                  info->start_idx, info->count, &pd_idx,
 355                                  &pd_lmt);
 356
 357         /* This is to cover for cases where you may not want to have an SD with
 358          * the full 2M memory but something smaller. By not filling out any
 359          * size, the function will default the SD size to be 2M.
 360          */
 361         if (info->direct_mode_sz == 0)
 362                 sd_size = I40E_HMC_DIRECT_BP_SIZE;
 363         else
 364                 sd_size = info->direct_mode_sz;
 365
 366         /* check if all the sds are valid. If not, allocate a page and
 367          * initialize it.
 368          */
 369         for (j = sd_idx; j < sd_lmt; j++) {
 370                 /* update the sd table entry */
 371                 ret_code = i40e_add_sd_table_entry(hw, info->hmc_info, j,
 372                                                    info->entry_type,
 373                                                    sd_size);
 374                 if (ret_code)
 375                         goto exit_sd_error;
 376                 sd_entry = &info->hmc_info->sd_table.sd_entry[j];
 377                 if (I40E_SD_TYPE_PAGED == sd_entry->entry_type) {
 378                         /* check if all the pds in this sd are valid. If not,
 379                          * allocate a page and initialize it.
 380                          */
 381
 382                         /* find pd_idx and pd_lmt in this sd */
 383                         pd_idx1 = max(pd_idx, (j * I40E_HMC_MAX_BP_COUNT));
 384                         pd_lmt1 = min(pd_lmt,
 385                                       ((j + 1) * I40E_HMC_MAX_BP_COUNT));
 386                         for (i = pd_idx1; i < pd_lmt1; i++) {
 387                                 /* update the pd table entry */
 388                                 ret_code = i40e_add_pd_table_entry(hw,
 389                                                                 info->hmc_info,
 390                                                                 i, NULL);
 391                                 if (ret_code) {
 392                                         pd_error = true;
 393                                         break;
 394                                 }
 395                         }
 396                         if (pd_error) {
 397                                 /* remove the backing pages from pd_idx1 to i */
 398                                 while (i && (i > pd_idx1)) {
 399                                         i40e_remove_pd_bp(hw, info->hmc_info,
 400                                                           (i - 1));
 401                                         i--;
 402                                 }
 403                         }
 404                 }
 405                 if (!sd_entry->valid) {
 406                         sd_entry->valid = true;
 407                         switch (sd_entry->entry_type) {
 408                         case I40E_SD_TYPE_PAGED:
 409                                 I40E_SET_PF_SD_ENTRY(hw,
 410                                         sd_entry->u.pd_table.pd_page_addr.pa,
 411                                         j, sd_entry->entry_type);
 412                                 break;
 413                         case I40E_SD_TYPE_DIRECT:
 414                                 I40E_SET_PF_SD_ENTRY(hw, sd_entry->u.bp.addr.pa,
 415                                                      j, sd_entry->entry_type);
 416                                 break;
 417                         default:
 418                                 ret_code = I40E_ERR_INVALID_SD_TYPE;
 419                                 goto exit;
 420                         }
 421                 }
 422         }
 423         goto exit;
 424
 425 exit_sd_error:
 426         /* cleanup for sd entries from j to sd_idx */
 427         while (j && (j > sd_idx)) {
 428                 sd_entry = &info->hmc_info->sd_table.sd_entry[j - 1];
 429                 switch (sd_entry->entry_type) {
 430                 case I40E_SD_TYPE_PAGED:
 431                         pd_idx1 = max(pd_idx,
 432                                       ((j - 1) * I40E_HMC_MAX_BP_COUNT));
 433                         pd_lmt1 = min(pd_lmt, (j * I40E_HMC_MAX_BP_COUNT));
 434                         for (i = pd_idx1; i < pd_lmt1; i++)
 435                                 i40e_remove_pd_bp(hw, info->hmc_info, i);
 436                         i40e_remove_pd_page(hw, info->hmc_info, (j - 1));
 437                         break;
 438                 case I40E_SD_TYPE_DIRECT:
 439                         i40e_remove_sd_bp(hw, info->hmc_info, (j - 1));
 440                         break;
 441                 default:
 442                         ret_code = I40E_ERR_INVALID_SD_TYPE;
 443                         break;
 444                 }
 445                 j--;
 446         }
 447 exit:
 448         return ret_code;
 449 }
 450
 451 /**
 452  * i40e_configure_lan_hmc - prepare the HMC backing store
 453  * @hw: pointer to the hw structure
 454  * @model: the model for the layout of the SD/PD tables
 455  *
 456  * - This function will be called once per physical function initialization.
 457  * - This function will be called after i40e_init_lan_hmc() and before
 458  *   any LAN/FCoE HMC objects can be created.
 459  **/
 460 i40e_status i40e_configure_lan_hmc(struct i40e_hw *hw,
 461                                              enum i40e_hmc_model model)
 462 {
 463         struct i40e_hmc_lan_create_obj_info info;
 464         i40e_status ret_code = 0;
 465         u8 hmc_fn_id = hw->hmc.hmc_fn_id;
 466         struct i40e_hmc_obj_info *obj;
 467
 468         /* Initialize part of the create object info struct */
 469         info.hmc_info = &hw->hmc;
 470         info.rsrc_type = I40E_HMC_LAN_FULL;
 471         info.start_idx = 0;
 472         info.direct_mode_sz = hw->hmc.hmc_obj[I40E_HMC_LAN_FULL].size;
 473
 474         /* Build the SD entry for the LAN objects */
 475         switch (model) {
 476         case I40E_HMC_MODEL_DIRECT_PREFERRED:
 477         case I40E_HMC_MODEL_DIRECT_ONLY:
 478                 info.entry_type = I40E_SD_TYPE_DIRECT;
 479                 /* Make one big object, a single SD */
 480                 info.count = 1;
 481                 ret_code = i40e_create_lan_hmc_object(hw, &info);
 482                 if (ret_code && (model == I40E_HMC_MODEL_DIRECT_PREFERRED))
 483                         goto try_type_paged;
 484                 else if (ret_code)
 485                         goto configure_lan_hmc_out;
 486                 /* else clause falls through the break */
 487                 break;
 488         case I40E_HMC_MODEL_PAGED_ONLY:
 489 try_type_paged:
 490                 info.entry_type = I40E_SD_TYPE_PAGED;
 491                 /* Make one big object in the PD table */
 492                 info.count = 1;
 493                 ret_code = i40e_create_lan_hmc_object(hw, &info);
 494                 if (ret_code)
 495                         goto configure_lan_hmc_out;
 496                 break;
 497         default:
 498                 /* unsupported type */
 499                 ret_code = I40E_ERR_INVALID_SD_TYPE;
 500                 hw_dbg(hw, "i40e_configure_lan_hmc: Unknown SD type: %d\n",
 501                           ret_code);
 502                 goto configure_lan_hmc_out;
 503         }
 504
 505         /* Configure and program the FPM registers so objects can be created */
 506
 507         /* Tx contexts */
 508         obj = &hw->hmc.hmc_obj[I40E_HMC_LAN_TX];
 509         wr32(hw, I40E_GLHMC_LANTXBASE(hmc_fn_id),
 510              (u32)((obj->base & I40E_GLHMC_LANTXBASE_FPMLANTXBASE_MASK) / 512));
 511         wr32(hw, I40E_GLHMC_LANTXCNT(hmc_fn_id), obj->cnt);
 512
 513         /* Rx contexts */
 514         obj = &hw->hmc.hmc_obj[I40E_HMC_LAN_RX];
 515         wr32(hw, I40E_GLHMC_LANRXBASE(hmc_fn_id),
 516              (u32)((obj->base & I40E_GLHMC_LANRXBASE_FPMLANRXBASE_MASK) / 512));
 517         wr32(hw, I40E_GLHMC_LANRXCNT(hmc_fn_id), obj->cnt);
 518
 519         /* FCoE contexts */
 520         obj = &hw->hmc.hmc_obj[I40E_HMC_FCOE_CTX];
 521         wr32(hw, I40E_GLHMC_FCOEDDPBASE(hmc_fn_id),
 522          (u32)((obj->base & I40E_GLHMC_FCOEDDPBASE_FPMFCOEDDPBASE_MASK) / 512));
 523         wr32(hw, I40E_GLHMC_FCOEDDPCNT(hmc_fn_id), obj->cnt);
 524
 525         /* FCoE filters */
 526         obj = &hw->hmc.hmc_obj[I40E_HMC_FCOE_FILT];
 527         wr32(hw, I40E_GLHMC_FCOEFBASE(hmc_fn_id),
 528              (u32)((obj->base & I40E_GLHMC_FCOEFBASE_FPMFCOEFBASE_MASK) / 512));
 529         wr32(hw, I40E_GLHMC_FCOEFCNT(hmc_fn_id), obj->cnt);
 530
 531 configure_lan_hmc_out:
 532         return ret_code;
 533 }
 534
 535 /**
 536  * i40e_delete_hmc_object - remove hmc objects
 537  * @hw: pointer to the HW structure
 538  * @info: pointer to i40e_hmc_delete_obj_info struct
 539  *
 540  * This will de-populate the SDs and PDs.  It frees
 541  * the memory for PDS and backing storage.  After this function is returned,
 542  * caller should deallocate memory allocated previously for
 543  * book-keeping information about PDs and backing storage.
 544  **/
 545 static i40e_status i40e_delete_lan_hmc_object(struct i40e_hw *hw,
 546                                 struct i40e_hmc_lan_delete_obj_info *info)
 547 {
 548         i40e_status ret_code = 0;
 549         struct i40e_hmc_pd_table *pd_table;
 550         u32 pd_idx, pd_lmt, rel_pd_idx;
 551         u32 sd_idx, sd_lmt;
 552         u32 i, j;
 553
 554         if (NULL == info) {
 555                 ret_code = I40E_ERR_BAD_PTR;
 556                 hw_dbg(hw, "i40e_delete_hmc_object: bad info ptr\n");
 557                 goto exit;
 558         }
 559         if (NULL == info->hmc_info) {
 560                 ret_code = I40E_ERR_BAD_PTR;
 561                 hw_dbg(hw, "i40e_delete_hmc_object: bad info->hmc_info ptr\n");
 562                 goto exit;
 563         }
 564         if (I40E_HMC_INFO_SIGNATURE != info->hmc_info->signature) {
 565                 ret_code = I40E_ERR_BAD_PTR;
 566                 hw_dbg(hw, "i40e_delete_hmc_object: bad hmc_info->signature\n");
 567                 goto exit;
 568         }
 569
 570         if (NULL == info->hmc_info->sd_table.sd_entry) {
 571                 ret_code = I40E_ERR_BAD_PTR;
 572                 hw_dbg(hw, "i40e_delete_hmc_object: bad sd_entry\n");
 573                 goto exit;
 574         }
 575
 576         if (NULL == info->hmc_info->hmc_obj) {
 577                 ret_code = I40E_ERR_BAD_PTR;
 578                 hw_dbg(hw, "i40e_delete_hmc_object: bad hmc_info->hmc_obj\n");
 579                 goto exit;
 580         }
 581         if (info->start_idx >= info->hmc_info->hmc_obj[info->rsrc_type].cnt) {
 582                 ret_code = I40E_ERR_INVALID_HMC_OBJ_INDEX;
 583                 hw_dbg(hw, "i40e_delete_hmc_object: returns error %d\n",
 584                           ret_code);
 585                 goto exit;
 586         }
 587
 588         if ((info->start_idx + info->count) >
 589             info->hmc_info->hmc_obj[info->rsrc_type].cnt) {
 590                 ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 591                 hw_dbg(hw, "i40e_delete_hmc_object: returns error %d\n",
 592                           ret_code);
 593                 goto exit;
 594         }
 595
 596         I40E_FIND_PD_INDEX_LIMIT(info->hmc_info, info->rsrc_type,
 597                                  info->start_idx, info->count, &pd_idx,
 598                                  &pd_lmt);
 599
 600         for (j = pd_idx; j < pd_lmt; j++) {
 601                 sd_idx = j / I40E_HMC_PD_CNT_IN_SD;
 602
 603                 if (I40E_SD_TYPE_PAGED !=
 604                     info->hmc_info->sd_table.sd_entry[sd_idx].entry_type)
 605                         continue;
 606
 607                 rel_pd_idx = j % I40E_HMC_PD_CNT_IN_SD;
 608
 609                 pd_table =
 610                         &info->hmc_info->sd_table.sd_entry[sd_idx].u.pd_table;
 611                 if (pd_table->pd_entry[rel_pd_idx].valid) {
 612                         ret_code = i40e_remove_pd_bp(hw, info->hmc_info, j);
 613                         if (ret_code)
 614                                 goto exit;
 615                 }
 616         }
 617
 618         /* find sd index and limit */
 619         I40E_FIND_SD_INDEX_LIMIT(info->hmc_info, info->rsrc_type,
 620                                  info->start_idx, info->count,
 621                                  &sd_idx, &sd_lmt);
 622         if (sd_idx >= info->hmc_info->sd_table.sd_cnt ||
 623             sd_lmt > info->hmc_info->sd_table.sd_cnt) {
 624                 ret_code = I40E_ERR_INVALID_SD_INDEX;
 625                 goto exit;
 626         }
 627
 628         for (i = sd_idx; i < sd_lmt; i++) {
 629                 if (!info->hmc_info->sd_table.sd_entry[i].valid)
 630                         continue;
 631                 switch (info->hmc_info->sd_table.sd_entry[i].entry_type) {
 632                 case I40E_SD_TYPE_DIRECT:
 633                         ret_code = i40e_remove_sd_bp(hw, info->hmc_info, i);
 634                         if (ret_code)
 635                                 goto exit;
 636                         break;
 637                 case I40E_SD_TYPE_PAGED:
 638                         ret_code = i40e_remove_pd_page(hw, info->hmc_info, i);
 639                         if (ret_code)
 640                                 goto exit;
 641                         break;
 642                 default:
 643                         break;
 644                 }
 645         }
 646 exit:
 647         return ret_code;
 648 }
 649
 650 /**
 651  * i40e_shutdown_lan_hmc - Remove HMC backing store, free allocated memory
 652  * @hw: pointer to the hw structure
 653  *
 654  * This must be called by drivers as they are shutting down and being
 655  * removed from the OS.
 656  **/
 657 i40e_status i40e_shutdown_lan_hmc(struct i40e_hw *hw)
 658 {
 659         struct i40e_hmc_lan_delete_obj_info info;
 660         i40e_status ret_code;
 661
 662         info.hmc_info = &hw->hmc;
 663         info.rsrc_type = I40E_HMC_LAN_FULL;
 664         info.start_idx = 0;
 665         info.count = 1;
 666
 667         /* delete the object */
 668         ret_code = i40e_delete_lan_hmc_object(hw, &info);
 669
 670         /* free the SD table entry for LAN */
 671         i40e_free_virt_mem(hw, &hw->hmc.sd_table.addr);
 672         hw->hmc.sd_table.sd_cnt = 0;
 673         hw->hmc.sd_table.sd_entry = NULL;
 674
 675         /* free memory used for hmc_obj */
 676         i40e_free_virt_mem(hw, &hw->hmc.hmc_obj_virt_mem);
 677         hw->hmc.hmc_obj = NULL;
 678
 679         return ret_code;
 680 }
 681
 682 #define I40E_HMC_STORE(_struct, _ele)           \
 683         offsetof(struct _struct, _ele),         \
 684         FIELD_SIZEOF(struct _struct, _ele)
 685
 686 struct i40e_context_ele {
 687         u16 offset;
 688         u16 size_of;
 689         u16 width;
 690         u16 lsb;
 691 };
 692
 693 /* LAN Tx Queue Context */
 694 static struct i40e_context_ele i40e_hmc_txq_ce_info[] = {
 695                                              /* Field      Width    LSB */
 696         {I40E_HMC_STORE(i40e_hmc_obj_txq, head),           13,      0 },
 697         {I40E_HMC_STORE(i40e_hmc_obj_txq, new_context),     1,     30 },
 698         {I40E_HMC_STORE(i40e_hmc_obj_txq, base),           57,     32 },
 699         {I40E_HMC_STORE(i40e_hmc_obj_txq, fc_ena),          1,     89 },
 700         {I40E_HMC_STORE(i40e_hmc_obj_txq, timesync_ena),    1,     90 },
 701         {I40E_HMC_STORE(i40e_hmc_obj_txq, fd_ena),          1,     91 },
 702         {I40E_HMC_STORE(i40e_hmc_obj_txq, alt_vlan_ena),    1,     92 },
 703         {I40E_HMC_STORE(i40e_hmc_obj_txq, cpuid),           8,     96 },
 704 /* line 1 */
 705         {I40E_HMC_STORE(i40e_hmc_obj_txq, thead_wb),       13,  0 + 128 },
 706         {I40E_HMC_STORE(i40e_hmc_obj_txq, head_wb_ena),     1, 32 + 128 },
 707         {I40E_HMC_STORE(i40e_hmc_obj_txq, qlen),           13, 33 + 128 },
 708         {I40E_HMC_STORE(i40e_hmc_obj_txq, tphrdesc_ena),    1, 46 + 128 },
 709         {I40E_HMC_STORE(i40e_hmc_obj_txq, tphrpacket_ena),  1, 47 + 128 },
 710         {I40E_HMC_STORE(i40e_hmc_obj_txq, tphwdesc_ena),    1, 48 + 128 },
 711         {I40E_HMC_STORE(i40e_hmc_obj_txq, head_wb_addr),   64, 64 + 128 },
 712 /* line 7 */
 713         {I40E_HMC_STORE(i40e_hmc_obj_txq, crc),            32,  0 + (7 * 128) },
 714         {I40E_HMC_STORE(i40e_hmc_obj_txq, rdylist),        10, 84 + (7 * 128) },
 715         {I40E_HMC_STORE(i40e_hmc_obj_txq, rdylist_act),     1, 94 + (7 * 128) },
 716         { 0 }
 717 };
 718
 719 /* LAN Rx Queue Context */
 720 static struct i40e_context_ele i40e_hmc_rxq_ce_info[] = {
 721                                          /* Field      Width    LSB */
 722         { I40E_HMC_STORE(i40e_hmc_obj_rxq, head),        13,    0   },
 723         { I40E_HMC_STORE(i40e_hmc_obj_rxq, cpuid),        8,    13  },
 724         { I40E_HMC_STORE(i40e_hmc_obj_rxq, base),        57,    32  },
 725         { I40E_HMC_STORE(i40e_hmc_obj_rxq, qlen),        13,    89  },
 726         { I40E_HMC_STORE(i40e_hmc_obj_rxq, dbuff),        7,    102 },
 727         { I40E_HMC_STORE(i40e_hmc_obj_rxq, hbuff),        5,    109 },
 728         { I40E_HMC_STORE(i40e_hmc_obj_rxq, dtype),        2,    114 },
 729         { I40E_HMC_STORE(i40e_hmc_obj_rxq, dsize),        1,    116 },
 730         { I40E_HMC_STORE(i40e_hmc_obj_rxq, crcstrip),     1,    117 },
 731         { I40E_HMC_STORE(i40e_hmc_obj_rxq, fc_ena),       1,    118 },
 732         { I40E_HMC_STORE(i40e_hmc_obj_rxq, l2tsel),       1,    119 },
 733         { I40E_HMC_STORE(i40e_hmc_obj_rxq, hsplit_0),     4,    120 },
 734         { I40E_HMC_STORE(i40e_hmc_obj_rxq, hsplit_1),     2,    124 },
 735         { I40E_HMC_STORE(i40e_hmc_obj_rxq, showiv),       1,    127 },
 736         { I40E_HMC_STORE(i40e_hmc_obj_rxq, rxmax),       14,    174 },
 737         { I40E_HMC_STORE(i40e_hmc_obj_rxq, tphrdesc_ena), 1,    193 },
 738         { I40E_HMC_STORE(i40e_hmc_obj_rxq, tphwdesc_ena), 1,    194 },
 739         { I40E_HMC_STORE(i40e_hmc_obj_rxq, tphdata_ena),  1,    195 },
 740         { I40E_HMC_STORE(i40e_hmc_obj_rxq, tphhead_ena),  1,    196 },
 741         { I40E_HMC_STORE(i40e_hmc_obj_rxq, lrxqthresh),   3,    198 },
 742         { I40E_HMC_STORE(i40e_hmc_obj_rxq, prefena),      1,    201 },
 743         { 0 }
 744 };
 745
 746 /**
 747  * i40e_write_byte - replace HMC context byte
 748  * @hmc_bits: pointer to the HMC memory
 749  * @ce_info: a description of the struct to be read from
 750  * @src: the struct to be read from
 751  **/
 752 static void i40e_write_byte(u8 *hmc_bits,
 753                             struct i40e_context_ele *ce_info,
 754                             u8 *src)
 755 {
 756         u8 src_byte, dest_byte, mask;
 757         u8 *from, *dest;
 758         u16 shift_width;
 759
 760         /* copy from the next struct field */
 761         from = src + ce_info->offset;
 762
 763         /* prepare the bits and mask */
 764         shift_width = ce_info->lsb % 8;
 765         mask = (u8)(BIT(ce_info->width) - 1);
 766
 767         src_byte = *from;
 768         src_byte &= mask;
 769
 770         /* shift to correct alignment */
 771         mask <<= shift_width;
 772         src_byte <<= shift_width;
 773
 774         /* get the current bits from the target bit string */
 775         dest = hmc_bits + (ce_info->lsb / 8);
 776
 777         memcpy(&dest_byte, dest, sizeof(dest_byte));
 778
 779         dest_byte &= ~mask;     /* get the bits not changing */
 780         dest_byte |= src_byte;  /* add in the new bits */
 781
 782         /* put it all back */
 783         memcpy(dest, &dest_byte, sizeof(dest_byte));
 784 }
 785
 786 /**
 787  * i40e_write_word - replace HMC context word
 788  * @hmc_bits: pointer to the HMC memory
 789  * @ce_info: a description of the struct to be read from
 790  * @src: the struct to be read from
 791  **/
 792 static void i40e_write_word(u8 *hmc_bits,
 793                             struct i40e_context_ele *ce_info,
 794                             u8 *src)
 795 {
 796         u16 src_word, mask;
 797         u8 *from, *dest;
 798         u16 shift_width;
 799         __le16 dest_word;
 800
 801         /* copy from the next struct field */
 802         from = src + ce_info->offset;
 803
 804         /* prepare the bits and mask */
 805         shift_width = ce_info->lsb % 8;
 806         mask = BIT(ce_info->width) - 1;
 807
 808         /* don't swizzle the bits until after the mask because the mask bits
 809          * will be in a different bit position on big endian machines
 810          */
 811         src_word = *(u16 *)from;
 812         src_word &= mask;
 813
 814         /* shift to correct alignment */
 815         mask <<= shift_width;
 816         src_word <<= shift_width;
 817
 818         /* get the current bits from the target bit string */
 819         dest = hmc_bits + (ce_info->lsb / 8);
 820
 821         memcpy(&dest_word, dest, sizeof(dest_word));
 822
 823         dest_word &= ~(cpu_to_le16(mask));      /* get the bits not changing */
 824         dest_word |= cpu_to_le16(src_word);     /* add in the new bits */
 825
 826         /* put it all back */
 827         memcpy(dest, &dest_word, sizeof(dest_word));
 828 }
 829
 830 /**
 831  * i40e_write_dword - replace HMC context dword
 832  * @hmc_bits: pointer to the HMC memory
 833  * @ce_info: a description of the struct to be read from
 834  * @src: the struct to be read from
 835  **/
 836 static void i40e_write_dword(u8 *hmc_bits,
 837                              struct i40e_context_ele *ce_info,
 838                              u8 *src)
 839 {
 840         u32 src_dword, mask;
 841         u8 *from, *dest;
 842         u16 shift_width;
 843         __le32 dest_dword;
 844
 845         /* copy from the next struct field */
 846         from = src + ce_info->offset;
 847
 848         /* prepare the bits and mask */
 849         shift_width = ce_info->lsb % 8;
 850
 851         /* if the field width is exactly 32 on an x86 machine, then the shift
 852          * operation will not work because the SHL instructions count is masked
 853          * to 5 bits so the shift will do nothing
 854          */
 855         if (ce_info->width < 32)
 856                 mask = BIT(ce_info->width) - 1;
 857         else
 858                 mask = ~(u32)0;
 859
 860         /* don't swizzle the bits until after the mask because the mask bits
 861          * will be in a different bit position on big endian machines
 862          */
 863         src_dword = *(u32 *)from;
 864         src_dword &= mask;
 865
 866         /* shift to correct alignment */
 867         mask <<= shift_width;
 868         src_dword <<= shift_width;
 869
 870         /* get the current bits from the target bit string */
 871         dest = hmc_bits + (ce_info->lsb / 8);
 872
 873         memcpy(&dest_dword, dest, sizeof(dest_dword));
 874
 875         dest_dword &= ~(cpu_to_le32(mask));     /* get the bits not changing */
 876         dest_dword |= cpu_to_le32(src_dword);   /* add in the new bits */
 877
 878         /* put it all back */
 879         memcpy(dest, &dest_dword, sizeof(dest_dword));
 880 }
 881
 882 /**
 883  * i40e_write_qword - replace HMC context qword
 884  * @hmc_bits: pointer to the HMC memory
 885  * @ce_info: a description of the struct to be read from
 886  * @src: the struct to be read from
 887  **/
 888 static void i40e_write_qword(u8 *hmc_bits,
 889                              struct i40e_context_ele *ce_info,
 890                              u8 *src)
 891 {
 892         u64 src_qword, mask;
 893         u8 *from, *dest;
 894         u16 shift_width;
 895         __le64 dest_qword;
 896
 897         /* copy from the next struct field */
 898         from = src + ce_info->offset;
 899
 900         /* prepare the bits and mask */
 901         shift_width = ce_info->lsb % 8;
 902
 903         /* if the field width is exactly 64 on an x86 machine, then the shift
 904          * operation will not work because the SHL instructions count is masked
 905          * to 6 bits so the shift will do nothing
 906          */
 907         if (ce_info->width < 64)
 908                 mask = BIT_ULL(ce_info->width) - 1;
 909         else
 910                 mask = ~(u64)0;
 911
 912         /* don't swizzle the bits until after the mask because the mask bits
 913          * will be in a different bit position on big endian machines
 914          */
 915         src_qword = *(u64 *)from;
 916         src_qword &= mask;
 917
 918         /* shift to correct alignment */
 919         mask <<= shift_width;
 920         src_qword <<= shift_width;
 921
 922         /* get the current bits from the target bit string */
 923         dest = hmc_bits + (ce_info->lsb / 8);
 924
 925         memcpy(&dest_qword, dest, sizeof(dest_qword));
 926
 927         dest_qword &= ~(cpu_to_le64(mask));     /* get the bits not changing */
 928         dest_qword |= cpu_to_le64(src_qword);   /* add in the new bits */
 929
 930         /* put it all back */
 931         memcpy(dest, &dest_qword, sizeof(dest_qword));
 932 }
 933
 934 /**
 935  * i40e_clear_hmc_context - zero out the HMC context bits
 936  * @hw:       the hardware struct
 937  * @context_bytes: pointer to the context bit array (DMA memory)
 938  * @hmc_type: the type of HMC resource
 939  **/
 940 static i40e_status i40e_clear_hmc_context(struct i40e_hw *hw,
 941                                         u8 *context_bytes,
 942                                         enum i40e_hmc_lan_rsrc_type hmc_type)
 943 {
 944         /* clean the bit array */
 945         memset(context_bytes, 0, (u32)hw->hmc.hmc_obj[hmc_type].size);
 946
 947         return 0;
 948 }
 949
 950 /**
 951  * i40e_set_hmc_context - replace HMC context bits
 952  * @context_bytes: pointer to the context bit array
 953  * @ce_info:  a description of the struct to be filled
 954  * @dest:     the struct to be filled
 955  **/
 956 static i40e_status i40e_set_hmc_context(u8 *context_bytes,
 957                                         struct i40e_context_ele *ce_info,
 958                                         u8 *dest)
 959 {
 960         int f;
 961
 962         for (f = 0; ce_info[f].width != 0; f++) {
 963
 964                 /* we have to deal with each element of the HMC using the
 965                  * correct size so that we are correct regardless of the
 966                  * endianness of the machine
 967                  */
 968                 switch (ce_info[f].size_of) {
 969                 case 1:
 970                         i40e_write_byte(context_bytes, &ce_info[f], dest);
 971                         break;
 972                 case 2:
 973                         i40e_write_word(context_bytes, &ce_info[f], dest);
 974                         break;
 975                 case 4:
 976                         i40e_write_dword(context_bytes, &ce_info[f], dest);
 977                         break;
 978                 case 8:
 979                         i40e_write_qword(context_bytes, &ce_info[f], dest);
 980                         break;
 981                 }
 982         }
 983
 984         return 0;
 985 }
 986
 987 /**
 988  * i40e_hmc_get_object_va - retrieves an object's virtual address
 989  * @hmc_info: pointer to i40e_hmc_info struct
 990  * @object_base: pointer to u64 to get the va
 991  * @rsrc_type: the hmc resource type
 992  * @obj_idx: hmc object index
 993  *
 994  * This function retrieves the object's virtual address from the object
 995  * base pointer.  This function is used for LAN Queue contexts.
 996  **/
 997 static
 998 i40e_status i40e_hmc_get_object_va(struct i40e_hmc_info *hmc_info,
 999                                         u8 **object_base,
1000                                         enum i40e_hmc_lan_rsrc_type rsrc_type,
1001                                         u32 obj_idx)
1002 {
1003         u32 obj_offset_in_sd, obj_offset_in_pd;
1004         i40e_status ret_code = 0;
1005         struct i40e_hmc_sd_entry *sd_entry;
1006         struct i40e_hmc_pd_entry *pd_entry;
1007         u32 pd_idx, pd_lmt, rel_pd_idx;
1008         u64 obj_offset_in_fpm;
1009         u32 sd_idx, sd_lmt;
1010
1011         if (NULL == hmc_info) {
1012                 ret_code = I40E_ERR_BAD_PTR;
1013                 hw_dbg(hw, "i40e_hmc_get_object_va: bad hmc_info ptr\n");
1014                 goto exit;
1015         }
1016         if (NULL == hmc_info->hmc_obj) {
1017                 ret_code = I40E_ERR_BAD_PTR;
1018                 hw_dbg(hw, "i40e_hmc_get_object_va: bad hmc_info->hmc_obj ptr\n");
1019                 goto exit;
1020         }
1021         if (NULL == object_base) {
1022                 ret_code = I40E_ERR_BAD_PTR;
1023                 hw_dbg(hw, "i40e_hmc_get_object_va: bad object_base ptr\n");
1024                 goto exit;
1025         }
1026         if (I40E_HMC_INFO_SIGNATURE != hmc_info->signature) {
1027                 ret_code = I40E_ERR_BAD_PTR;
1028                 hw_dbg(hw, "i40e_hmc_get_object_va: bad hmc_info->signature\n");
1029                 goto exit;
1030         }
1031         if (obj_idx >= hmc_info->hmc_obj[rsrc_type].cnt) {
1032                 hw_dbg(hw, "i40e_hmc_get_object_va: returns error %d\n",
1033                           ret_code);
1034                 ret_code = I40E_ERR_INVALID_HMC_OBJ_INDEX;
1035                 goto exit;
1036         }
1037         /* find sd index and limit */
1038         I40E_FIND_SD_INDEX_LIMIT(hmc_info, rsrc_type, obj_idx, 1,
1039                                  &sd_idx, &sd_lmt);
1040
1041         sd_entry = &hmc_info->sd_table.sd_entry[sd_idx];
1042         obj_offset_in_fpm = hmc_info->hmc_obj[rsrc_type].base +
1043                             hmc_info->hmc_obj[rsrc_type].size * obj_idx;
1044
1045         if (I40E_SD_TYPE_PAGED == sd_entry->entry_type) {
1046                 I40E_FIND_PD_INDEX_LIMIT(hmc_info, rsrc_type, obj_idx, 1,
1047                                          &pd_idx, &pd_lmt);
1048                 rel_pd_idx = pd_idx % I40E_HMC_PD_CNT_IN_SD;
1049                 pd_entry = &sd_entry->u.pd_table.pd_entry[rel_pd_idx];
1050                 obj_offset_in_pd = (u32)(obj_offset_in_fpm %
1051                                          I40E_HMC_PAGED_BP_SIZE);
1052                 *object_base = (u8 *)pd_entry->bp.addr.va + obj_offset_in_pd;
1053         } else {
1054                 obj_offset_in_sd = (u32)(obj_offset_in_fpm %
1055                                          I40E_HMC_DIRECT_BP_SIZE);
1056                 *object_base = (u8 *)sd_entry->u.bp.addr.va + obj_offset_in_sd;
1057         }
1058 exit:
1059         return ret_code;
1060 }
1061
1062 /**
1063  * i40e_clear_lan_tx_queue_context - clear the HMC context for the queue
1064  * @hw:    the hardware struct
1065  * @queue: the queue we care about
1066  **/
1067 i40e_status i40e_clear_lan_tx_queue_context(struct i40e_hw *hw,
1068                                                       u16 queue)
1069 {
1070         i40e_status err;
1071         u8 *context_bytes;
1072
1073         err = i40e_hmc_get_object_va(&hw->hmc, &context_bytes,
1074                                      I40E_HMC_LAN_TX, queue);
1075         if (err < 0)
1076                 return err;
1077
1078         return i40e_clear_hmc_context(hw, context_bytes, I40E_HMC_LAN_TX);
1079 }
1080
1081 /**
1082  * i40e_set_lan_tx_queue_context - set the HMC context for the queue
1083  * @hw:    the hardware struct
1084  * @queue: the queue we care about
1085  * @s:     the struct to be filled
1086  **/
1087 i40e_status i40e_set_lan_tx_queue_context(struct i40e_hw *hw,
1088                                                     u16 queue,
1089                                                     struct i40e_hmc_obj_txq *s)
1090 {
1091         i40e_status err;
1092         u8 *context_bytes;
1093
1094         err = i40e_hmc_get_object_va(&hw->hmc, &context_bytes,
1095                                      I40E_HMC_LAN_TX, queue);
1096         if (err < 0)
1097                 return err;
1098
1099         return i40e_set_hmc_context(context_bytes,
1100                                     i40e_hmc_txq_ce_info, (u8 *)s);
1101 }
1102
1103 /**
1104  * i40e_clear_lan_rx_queue_context - clear the HMC context for the queue
1105  * @hw:    the hardware struct
1106  * @queue: the queue we care about
1107  **/
1108 i40e_status i40e_clear_lan_rx_queue_context(struct i40e_hw *hw,
1109                                                       u16 queue)
1110 {
1111         i40e_status err;
1112         u8 *context_bytes;
1113
1114         err = i40e_hmc_get_object_va(&hw->hmc, &context_bytes,
1115                                      I40E_HMC_LAN_RX, queue);
1116         if (err < 0)
1117                 return err;
1118
1119         return i40e_clear_hmc_context(hw, context_bytes, I40E_HMC_LAN_RX);
1120 }
1121
1122 /**
1123  * i40e_set_lan_rx_queue_context - set the HMC context for the queue
1124  * @hw:    the hardware struct
1125  * @queue: the queue we care about
1126  * @s:     the struct to be filled
1127  **/
1128 i40e_status i40e_set_lan_rx_queue_context(struct i40e_hw *hw,
1129                                                     u16 queue,
1130                                                     struct i40e_hmc_obj_rxq *s)
1131 {
1132         i40e_status err;
1133         u8 *context_bytes;
1134
1135         err = i40e_hmc_get_object_va(&hw->hmc, &context_bytes,
1136                                      I40E_HMC_LAN_RX, queue);
1137         if (err < 0)
1138                 return err;
1139
1140         return i40e_set_hmc_context(context_bytes,
1141                                     i40e_hmc_rxq_ce_info, (u8 *)s);
1142 }