1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2019, Intel Corporation. */ 3 4 #include "ice_common.h" 5 #include "ice_flex_pipe.h" 6 #include "ice_flow.h" 7 8 /* For supporting double VLAN mode, it is necessary to enable or disable certain 9 * boost tcam entries. The metadata labels names that match the following 10 * prefixes will be saved to allow enabling double VLAN mode. 11 */ 12 #define ICE_DVM_PRE "BOOST_MAC_VLAN_DVM" /* enable these entries */ 13 #define ICE_SVM_PRE "BOOST_MAC_VLAN_SVM" /* disable these entries */ 14 15 /* To support tunneling entries by PF, the package will append the PF number to 16 * the label; for example TNL_VXLAN_PF0, TNL_VXLAN_PF1, TNL_VXLAN_PF2, etc. 17 */ 18 #define ICE_TNL_PRE "TNL_" 19 static const struct ice_tunnel_type_scan tnls[] = { 20 { TNL_VXLAN, "TNL_VXLAN_PF" }, 21 { TNL_GENEVE, "TNL_GENEVE_PF" }, 22 { TNL_LAST, "" } 23 }; 24 25 static const u32 ice_sect_lkup[ICE_BLK_COUNT][ICE_SECT_COUNT] = { 26 /* SWITCH */ 27 { 28 ICE_SID_XLT0_SW, 29 ICE_SID_XLT_KEY_BUILDER_SW, 30 ICE_SID_XLT1_SW, 31 ICE_SID_XLT2_SW, 32 ICE_SID_PROFID_TCAM_SW, 33 ICE_SID_PROFID_REDIR_SW, 34 ICE_SID_FLD_VEC_SW, 35 ICE_SID_CDID_KEY_BUILDER_SW, 36 ICE_SID_CDID_REDIR_SW 37 }, 38 39 /* ACL */ 40 { 41 ICE_SID_XLT0_ACL, 42 ICE_SID_XLT_KEY_BUILDER_ACL, 43 ICE_SID_XLT1_ACL, 44 ICE_SID_XLT2_ACL, 45 ICE_SID_PROFID_TCAM_ACL, 46 ICE_SID_PROFID_REDIR_ACL, 47 ICE_SID_FLD_VEC_ACL, 48 ICE_SID_CDID_KEY_BUILDER_ACL, 49 ICE_SID_CDID_REDIR_ACL 50 }, 51 52 /* FD */ 53 { 54 ICE_SID_XLT0_FD, 55 ICE_SID_XLT_KEY_BUILDER_FD, 56 ICE_SID_XLT1_FD, 57 ICE_SID_XLT2_FD, 58 ICE_SID_PROFID_TCAM_FD, 59 ICE_SID_PROFID_REDIR_FD, 60 ICE_SID_FLD_VEC_FD, 61 ICE_SID_CDID_KEY_BUILDER_FD, 62 ICE_SID_CDID_REDIR_FD 63 }, 64 65 /* RSS */ 66 { 67 ICE_SID_XLT0_RSS, 68 ICE_SID_XLT_KEY_BUILDER_RSS, 69 ICE_SID_XLT1_RSS, 70 ICE_SID_XLT2_RSS, 71 ICE_SID_PROFID_TCAM_RSS, 72 ICE_SID_PROFID_REDIR_RSS, 73 ICE_SID_FLD_VEC_RSS, 74 ICE_SID_CDID_KEY_BUILDER_RSS, 75 ICE_SID_CDID_REDIR_RSS 76 }, 77 78 /* PE */ 79 { 80 ICE_SID_XLT0_PE, 81 ICE_SID_XLT_KEY_BUILDER_PE, 82 ICE_SID_XLT1_PE, 83 ICE_SID_XLT2_PE, 84 ICE_SID_PROFID_TCAM_PE, 85 ICE_SID_PROFID_REDIR_PE, 86 ICE_SID_FLD_VEC_PE, 87 ICE_SID_CDID_KEY_BUILDER_PE, 88 ICE_SID_CDID_REDIR_PE 89 } 90 }; 91 92 /** 93 * ice_sect_id - returns section ID 94 * @blk: block type 95 * @sect: section type 96 * 97 * This helper function returns the proper section ID given a block type and a 98 * section type. 99 */ 100 static u32 ice_sect_id(enum ice_block blk, enum ice_sect sect) 101 { 102 return ice_sect_lkup[blk][sect]; 103 } 104 105 /** 106 * ice_pkg_val_buf 107 * @buf: pointer to the ice buffer 108 * 109 * This helper function validates a buffer's header. 110 */ 111 static struct ice_buf_hdr *ice_pkg_val_buf(struct ice_buf *buf) 112 { 113 struct ice_buf_hdr *hdr; 114 u16 section_count; 115 u16 data_end; 116 117 hdr = (struct ice_buf_hdr *)buf->buf; 118 /* verify data */ 119 section_count = le16_to_cpu(hdr->section_count); 120 if (section_count < ICE_MIN_S_COUNT || section_count > ICE_MAX_S_COUNT) 121 return NULL; 122 123 data_end = le16_to_cpu(hdr->data_end); 124 if (data_end < ICE_MIN_S_DATA_END || data_end > ICE_MAX_S_DATA_END) 125 return NULL; 126 127 return hdr; 128 } 129 130 /** 131 * ice_find_buf_table 132 * @ice_seg: pointer to the ice segment 133 * 134 * Returns the address of the buffer table within the ice segment. 135 */ 136 static struct ice_buf_table *ice_find_buf_table(struct ice_seg *ice_seg) 137 { 138 struct ice_nvm_table *nvms; 139 140 nvms = (struct ice_nvm_table *) 141 (ice_seg->device_table + 142 le32_to_cpu(ice_seg->device_table_count)); 143 144 return (__force struct ice_buf_table *) 145 (nvms->vers + le32_to_cpu(nvms->table_count)); 146 } 147 148 /** 149 * ice_pkg_enum_buf 150 * @ice_seg: pointer to the ice segment (or NULL on subsequent calls) 151 * @state: pointer to the enum state 152 * 153 * This function will enumerate all the buffers in the ice segment. The first 154 * call is made with the ice_seg parameter non-NULL; on subsequent calls, 155 * ice_seg is set to NULL which continues the enumeration. When the function 156 * returns a NULL pointer, then the end of the buffers has been reached, or an 157 * unexpected value has been detected (for example an invalid section count or 158 * an invalid buffer end value). 159 */ 160 static struct ice_buf_hdr * 161 ice_pkg_enum_buf(struct ice_seg *ice_seg, struct ice_pkg_enum *state) 162 { 163 if (ice_seg) { 164 state->buf_table = ice_find_buf_table(ice_seg); 165 if (!state->buf_table) 166 return NULL; 167 168 state->buf_idx = 0; 169 return ice_pkg_val_buf(state->buf_table->buf_array); 170 } 171 172 if (++state->buf_idx < le32_to_cpu(state->buf_table->buf_count)) 173 return ice_pkg_val_buf(state->buf_table->buf_array + 174 state->buf_idx); 175 else 176 return NULL; 177 } 178 179 /** 180 * ice_pkg_advance_sect 181 * @ice_seg: pointer to the ice segment (or NULL on subsequent calls) 182 * @state: pointer to the enum state 183 * 184 * This helper function will advance the section within the ice segment, 185 * also advancing the buffer if needed. 186 */ 187 static bool 188 ice_pkg_advance_sect(struct ice_seg *ice_seg, struct ice_pkg_enum *state) 189 { 190 if (!ice_seg && !state->buf) 191 return false; 192 193 if (!ice_seg && state->buf) 194 if (++state->sect_idx < le16_to_cpu(state->buf->section_count)) 195 return true; 196 197 state->buf = ice_pkg_enum_buf(ice_seg, state); 198 if (!state->buf) 199 return false; 200 201 /* start of new buffer, reset section index */ 202 state->sect_idx = 0; 203 return true; 204 } 205 206 /** 207 * ice_pkg_enum_section 208 * @ice_seg: pointer to the ice segment (or NULL on subsequent calls) 209 * @state: pointer to the enum state 210 * @sect_type: section type to enumerate 211 * 212 * This function will enumerate all the sections of a particular type in the 213 * ice segment. The first call is made with the ice_seg parameter non-NULL; 214 * on subsequent calls, ice_seg is set to NULL which continues the enumeration. 215 * When the function returns a NULL pointer, then the end of the matching 216 * sections has been reached. 217 */ 218 static void * 219 ice_pkg_enum_section(struct ice_seg *ice_seg, struct ice_pkg_enum *state, 220 u32 sect_type) 221 { 222 u16 offset, size; 223 224 if (ice_seg) 225 state->type = sect_type; 226 227 if (!ice_pkg_advance_sect(ice_seg, state)) 228 return NULL; 229 230 /* scan for next matching section */ 231 while (state->buf->section_entry[state->sect_idx].type != 232 cpu_to_le32(state->type)) 233 if (!ice_pkg_advance_sect(NULL, state)) 234 return NULL; 235 236 /* validate section */ 237 offset = le16_to_cpu(state->buf->section_entry[state->sect_idx].offset); 238 if (offset < ICE_MIN_S_OFF || offset > ICE_MAX_S_OFF) 239 return NULL; 240 241 size = le16_to_cpu(state->buf->section_entry[state->sect_idx].size); 242 if (size < ICE_MIN_S_SZ || size > ICE_MAX_S_SZ) 243 return NULL; 244 245 /* make sure the section fits in the buffer */ 246 if (offset + size > ICE_PKG_BUF_SIZE) 247 return NULL; 248 249 state->sect_type = 250 le32_to_cpu(state->buf->section_entry[state->sect_idx].type); 251 252 /* calc pointer to this section */ 253 state->sect = ((u8 *)state->buf) + 254 le16_to_cpu(state->buf->section_entry[state->sect_idx].offset); 255 256 return state->sect; 257 } 258 259 /** 260 * ice_pkg_enum_entry 261 * @ice_seg: pointer to the ice segment (or NULL on subsequent calls) 262 * @state: pointer to the enum state 263 * @sect_type: section type to enumerate 264 * @offset: pointer to variable that receives the offset in the table (optional) 265 * @handler: function that handles access to the entries into the section type 266 * 267 * This function will enumerate all the entries in particular section type in 268 * the ice segment. The first call is made with the ice_seg parameter non-NULL; 269 * on subsequent calls, ice_seg is set to NULL which continues the enumeration. 270 * When the function returns a NULL pointer, then the end of the entries has 271 * been reached. 272 * 273 * Since each section may have a different header and entry size, the handler 274 * function is needed to determine the number and location entries in each 275 * section. 276 * 277 * The offset parameter is optional, but should be used for sections that 278 * contain an offset for each section table. For such cases, the section handler 279 * function must return the appropriate offset + index to give the absolution 280 * offset for each entry. For example, if the base for a section's header 281 * indicates a base offset of 10, and the index for the entry is 2, then 282 * section handler function should set the offset to 10 + 2 = 12. 283 */ 284 static void * 285 ice_pkg_enum_entry(struct ice_seg *ice_seg, struct ice_pkg_enum *state, 286 u32 sect_type, u32 *offset, 287 void *(*handler)(u32 sect_type, void *section, 288 u32 index, u32 *offset)) 289 { 290 void *entry; 291 292 if (ice_seg) { 293 if (!handler) 294 return NULL; 295 296 if (!ice_pkg_enum_section(ice_seg, state, sect_type)) 297 return NULL; 298 299 state->entry_idx = 0; 300 state->handler = handler; 301 } else { 302 state->entry_idx++; 303 } 304 305 if (!state->handler) 306 return NULL; 307 308 /* get entry */ 309 entry = state->handler(state->sect_type, state->sect, state->entry_idx, 310 offset); 311 if (!entry) { 312 /* end of a section, look for another section of this type */ 313 if (!ice_pkg_enum_section(NULL, state, 0)) 314 return NULL; 315 316 state->entry_idx = 0; 317 entry = state->handler(state->sect_type, state->sect, 318 state->entry_idx, offset); 319 } 320 321 return entry; 322 } 323 324 /** 325 * ice_hw_ptype_ena - check if the PTYPE is enabled or not 326 * @hw: pointer to the HW structure 327 * @ptype: the hardware PTYPE 328 */ 329 bool ice_hw_ptype_ena(struct ice_hw *hw, u16 ptype) 330 { 331 return ptype < ICE_FLOW_PTYPE_MAX && 332 test_bit(ptype, hw->hw_ptype); 333 } 334 335 /** 336 * ice_marker_ptype_tcam_handler 337 * @sect_type: section type 338 * @section: pointer to section 339 * @index: index of the Marker PType TCAM entry to be returned 340 * @offset: pointer to receive absolute offset, always 0 for ptype TCAM sections 341 * 342 * This is a callback function that can be passed to ice_pkg_enum_entry. 343 * Handles enumeration of individual Marker PType TCAM entries. 344 */ 345 static void * 346 ice_marker_ptype_tcam_handler(u32 sect_type, void *section, u32 index, 347 u32 *offset) 348 { 349 struct ice_marker_ptype_tcam_section *marker_ptype; 350 351 if (sect_type != ICE_SID_RXPARSER_MARKER_PTYPE) 352 return NULL; 353 354 if (index > ICE_MAX_MARKER_PTYPE_TCAMS_IN_BUF) 355 return NULL; 356 357 if (offset) 358 *offset = 0; 359 360 marker_ptype = section; 361 if (index >= le16_to_cpu(marker_ptype->count)) 362 return NULL; 363 364 return marker_ptype->tcam + index; 365 } 366 367 /** 368 * ice_fill_hw_ptype - fill the enabled PTYPE bit information 369 * @hw: pointer to the HW structure 370 */ 371 static void ice_fill_hw_ptype(struct ice_hw *hw) 372 { 373 struct ice_marker_ptype_tcam_entry *tcam; 374 struct ice_seg *seg = hw->seg; 375 struct ice_pkg_enum state; 376 377 bitmap_zero(hw->hw_ptype, ICE_FLOW_PTYPE_MAX); 378 if (!seg) 379 return; 380 381 memset(&state, 0, sizeof(state)); 382 383 do { 384 tcam = ice_pkg_enum_entry(seg, &state, 385 ICE_SID_RXPARSER_MARKER_PTYPE, NULL, 386 ice_marker_ptype_tcam_handler); 387 if (tcam && 388 le16_to_cpu(tcam->addr) < ICE_MARKER_PTYPE_TCAM_ADDR_MAX && 389 le16_to_cpu(tcam->ptype) < ICE_FLOW_PTYPE_MAX) 390 set_bit(le16_to_cpu(tcam->ptype), hw->hw_ptype); 391 392 seg = NULL; 393 } while (tcam); 394 } 395 396 /** 397 * ice_boost_tcam_handler 398 * @sect_type: section type 399 * @section: pointer to section 400 * @index: index of the boost TCAM entry to be returned 401 * @offset: pointer to receive absolute offset, always 0 for boost TCAM sections 402 * 403 * This is a callback function that can be passed to ice_pkg_enum_entry. 404 * Handles enumeration of individual boost TCAM entries. 405 */ 406 static void * 407 ice_boost_tcam_handler(u32 sect_type, void *section, u32 index, u32 *offset) 408 { 409 struct ice_boost_tcam_section *boost; 410 411 if (!section) 412 return NULL; 413 414 if (sect_type != ICE_SID_RXPARSER_BOOST_TCAM) 415 return NULL; 416 417 /* cppcheck-suppress nullPointer */ 418 if (index > ICE_MAX_BST_TCAMS_IN_BUF) 419 return NULL; 420 421 if (offset) 422 *offset = 0; 423 424 boost = section; 425 if (index >= le16_to_cpu(boost->count)) 426 return NULL; 427 428 return boost->tcam + index; 429 } 430 431 /** 432 * ice_find_boost_entry 433 * @ice_seg: pointer to the ice segment (non-NULL) 434 * @addr: Boost TCAM address of entry to search for 435 * @entry: returns pointer to the entry 436 * 437 * Finds a particular Boost TCAM entry and returns a pointer to that entry 438 * if it is found. The ice_seg parameter must not be NULL since the first call 439 * to ice_pkg_enum_entry requires a pointer to an actual ice_segment structure. 440 */ 441 static int 442 ice_find_boost_entry(struct ice_seg *ice_seg, u16 addr, 443 struct ice_boost_tcam_entry **entry) 444 { 445 struct ice_boost_tcam_entry *tcam; 446 struct ice_pkg_enum state; 447 448 memset(&state, 0, sizeof(state)); 449 450 if (!ice_seg) 451 return -EINVAL; 452 453 do { 454 tcam = ice_pkg_enum_entry(ice_seg, &state, 455 ICE_SID_RXPARSER_BOOST_TCAM, NULL, 456 ice_boost_tcam_handler); 457 if (tcam && le16_to_cpu(tcam->addr) == addr) { 458 *entry = tcam; 459 return 0; 460 } 461 462 ice_seg = NULL; 463 } while (tcam); 464 465 *entry = NULL; 466 return -EIO; 467 } 468 469 /** 470 * ice_label_enum_handler 471 * @sect_type: section type 472 * @section: pointer to section 473 * @index: index of the label entry to be returned 474 * @offset: pointer to receive absolute offset, always zero for label sections 475 * 476 * This is a callback function that can be passed to ice_pkg_enum_entry. 477 * Handles enumeration of individual label entries. 478 */ 479 static void * 480 ice_label_enum_handler(u32 __always_unused sect_type, void *section, u32 index, 481 u32 *offset) 482 { 483 struct ice_label_section *labels; 484 485 if (!section) 486 return NULL; 487 488 /* cppcheck-suppress nullPointer */ 489 if (index > ICE_MAX_LABELS_IN_BUF) 490 return NULL; 491 492 if (offset) 493 *offset = 0; 494 495 labels = section; 496 if (index >= le16_to_cpu(labels->count)) 497 return NULL; 498 499 return labels->label + index; 500 } 501 502 /** 503 * ice_enum_labels 504 * @ice_seg: pointer to the ice segment (NULL on subsequent calls) 505 * @type: the section type that will contain the label (0 on subsequent calls) 506 * @state: ice_pkg_enum structure that will hold the state of the enumeration 507 * @value: pointer to a value that will return the label's value if found 508 * 509 * Enumerates a list of labels in the package. The caller will call 510 * ice_enum_labels(ice_seg, type, ...) to start the enumeration, then call 511 * ice_enum_labels(NULL, 0, ...) to continue. When the function returns a NULL 512 * the end of the list has been reached. 513 */ 514 static char * 515 ice_enum_labels(struct ice_seg *ice_seg, u32 type, struct ice_pkg_enum *state, 516 u16 *value) 517 { 518 struct ice_label *label; 519 520 /* Check for valid label section on first call */ 521 if (type && !(type >= ICE_SID_LBL_FIRST && type <= ICE_SID_LBL_LAST)) 522 return NULL; 523 524 label = ice_pkg_enum_entry(ice_seg, state, type, NULL, 525 ice_label_enum_handler); 526 if (!label) 527 return NULL; 528 529 *value = le16_to_cpu(label->value); 530 return label->name; 531 } 532 533 /** 534 * ice_add_tunnel_hint 535 * @hw: pointer to the HW structure 536 * @label_name: label text 537 * @val: value of the tunnel port boost entry 538 */ 539 static void ice_add_tunnel_hint(struct ice_hw *hw, char *label_name, u16 val) 540 { 541 if (hw->tnl.count < ICE_TUNNEL_MAX_ENTRIES) { 542 u16 i; 543 544 for (i = 0; tnls[i].type != TNL_LAST; i++) { 545 size_t len = strlen(tnls[i].label_prefix); 546 547 /* Look for matching label start, before continuing */ 548 if (strncmp(label_name, tnls[i].label_prefix, len)) 549 continue; 550 551 /* Make sure this label matches our PF. Note that the PF 552 * character ('0' - '7') will be located where our 553 * prefix string's null terminator is located. 554 */ 555 if ((label_name[len] - '0') == hw->pf_id) { 556 hw->tnl.tbl[hw->tnl.count].type = tnls[i].type; 557 hw->tnl.tbl[hw->tnl.count].valid = false; 558 hw->tnl.tbl[hw->tnl.count].boost_addr = val; 559 hw->tnl.tbl[hw->tnl.count].port = 0; 560 hw->tnl.count++; 561 break; 562 } 563 } 564 } 565 } 566 567 /** 568 * ice_add_dvm_hint 569 * @hw: pointer to the HW structure 570 * @val: value of the boost entry 571 * @enable: true if entry needs to be enabled, or false if needs to be disabled 572 */ 573 static void ice_add_dvm_hint(struct ice_hw *hw, u16 val, bool enable) 574 { 575 if (hw->dvm_upd.count < ICE_DVM_MAX_ENTRIES) { 576 hw->dvm_upd.tbl[hw->dvm_upd.count].boost_addr = val; 577 hw->dvm_upd.tbl[hw->dvm_upd.count].enable = enable; 578 hw->dvm_upd.count++; 579 } 580 } 581 582 /** 583 * ice_init_pkg_hints 584 * @hw: pointer to the HW structure 585 * @ice_seg: pointer to the segment of the package scan (non-NULL) 586 * 587 * This function will scan the package and save off relevant information 588 * (hints or metadata) for driver use. The ice_seg parameter must not be NULL 589 * since the first call to ice_enum_labels requires a pointer to an actual 590 * ice_seg structure. 591 */ 592 static void ice_init_pkg_hints(struct ice_hw *hw, struct ice_seg *ice_seg) 593 { 594 struct ice_pkg_enum state; 595 char *label_name; 596 u16 val; 597 int i; 598 599 memset(&hw->tnl, 0, sizeof(hw->tnl)); 600 memset(&state, 0, sizeof(state)); 601 602 if (!ice_seg) 603 return; 604 605 label_name = ice_enum_labels(ice_seg, ICE_SID_LBL_RXPARSER_TMEM, &state, 606 &val); 607 608 while (label_name) { 609 if (!strncmp(label_name, ICE_TNL_PRE, strlen(ICE_TNL_PRE))) 610 /* check for a tunnel entry */ 611 ice_add_tunnel_hint(hw, label_name, val); 612 613 /* check for a dvm mode entry */ 614 else if (!strncmp(label_name, ICE_DVM_PRE, strlen(ICE_DVM_PRE))) 615 ice_add_dvm_hint(hw, val, true); 616 617 /* check for a svm mode entry */ 618 else if (!strncmp(label_name, ICE_SVM_PRE, strlen(ICE_SVM_PRE))) 619 ice_add_dvm_hint(hw, val, false); 620 621 label_name = ice_enum_labels(NULL, 0, &state, &val); 622 } 623 624 /* Cache the appropriate boost TCAM entry pointers for tunnels */ 625 for (i = 0; i < hw->tnl.count; i++) { 626 ice_find_boost_entry(ice_seg, hw->tnl.tbl[i].boost_addr, 627 &hw->tnl.tbl[i].boost_entry); 628 if (hw->tnl.tbl[i].boost_entry) { 629 hw->tnl.tbl[i].valid = true; 630 if (hw->tnl.tbl[i].type < __TNL_TYPE_CNT) 631 hw->tnl.valid_count[hw->tnl.tbl[i].type]++; 632 } 633 } 634 635 /* Cache the appropriate boost TCAM entry pointers for DVM and SVM */ 636 for (i = 0; i < hw->dvm_upd.count; i++) 637 ice_find_boost_entry(ice_seg, hw->dvm_upd.tbl[i].boost_addr, 638 &hw->dvm_upd.tbl[i].boost_entry); 639 } 640 641 /* Key creation */ 642 643 #define ICE_DC_KEY 0x1 /* don't care */ 644 #define ICE_DC_KEYINV 0x1 645 #define ICE_NM_KEY 0x0 /* never match */ 646 #define ICE_NM_KEYINV 0x0 647 #define ICE_0_KEY 0x1 /* match 0 */ 648 #define ICE_0_KEYINV 0x0 649 #define ICE_1_KEY 0x0 /* match 1 */ 650 #define ICE_1_KEYINV 0x1 651 652 /** 653 * ice_gen_key_word - generate 16-bits of a key/mask word 654 * @val: the value 655 * @valid: valid bits mask (change only the valid bits) 656 * @dont_care: don't care mask 657 * @nvr_mtch: never match mask 658 * @key: pointer to an array of where the resulting key portion 659 * @key_inv: pointer to an array of where the resulting key invert portion 660 * 661 * This function generates 16-bits from a 8-bit value, an 8-bit don't care mask 662 * and an 8-bit never match mask. The 16-bits of output are divided into 8 bits 663 * of key and 8 bits of key invert. 664 * 665 * '0' = b01, always match a 0 bit 666 * '1' = b10, always match a 1 bit 667 * '?' = b11, don't care bit (always matches) 668 * '~' = b00, never match bit 669 * 670 * Input: 671 * val: b0 1 0 1 0 1 672 * dont_care: b0 0 1 1 0 0 673 * never_mtch: b0 0 0 0 1 1 674 * ------------------------------ 675 * Result: key: b01 10 11 11 00 00 676 */ 677 static int 678 ice_gen_key_word(u8 val, u8 valid, u8 dont_care, u8 nvr_mtch, u8 *key, 679 u8 *key_inv) 680 { 681 u8 in_key = *key, in_key_inv = *key_inv; 682 u8 i; 683 684 /* 'dont_care' and 'nvr_mtch' masks cannot overlap */ 685 if ((dont_care ^ nvr_mtch) != (dont_care | nvr_mtch)) 686 return -EIO; 687 688 *key = 0; 689 *key_inv = 0; 690 691 /* encode the 8 bits into 8-bit key and 8-bit key invert */ 692 for (i = 0; i < 8; i++) { 693 *key >>= 1; 694 *key_inv >>= 1; 695 696 if (!(valid & 0x1)) { /* change only valid bits */ 697 *key |= (in_key & 0x1) << 7; 698 *key_inv |= (in_key_inv & 0x1) << 7; 699 } else if (dont_care & 0x1) { /* don't care bit */ 700 *key |= ICE_DC_KEY << 7; 701 *key_inv |= ICE_DC_KEYINV << 7; 702 } else if (nvr_mtch & 0x1) { /* never match bit */ 703 *key |= ICE_NM_KEY << 7; 704 *key_inv |= ICE_NM_KEYINV << 7; 705 } else if (val & 0x01) { /* exact 1 match */ 706 *key |= ICE_1_KEY << 7; 707 *key_inv |= ICE_1_KEYINV << 7; 708 } else { /* exact 0 match */ 709 *key |= ICE_0_KEY << 7; 710 *key_inv |= ICE_0_KEYINV << 7; 711 } 712 713 dont_care >>= 1; 714 nvr_mtch >>= 1; 715 valid >>= 1; 716 val >>= 1; 717 in_key >>= 1; 718 in_key_inv >>= 1; 719 } 720 721 return 0; 722 } 723 724 /** 725 * ice_bits_max_set - determine if the number of bits set is within a maximum 726 * @mask: pointer to the byte array which is the mask 727 * @size: the number of bytes in the mask 728 * @max: the max number of set bits 729 * 730 * This function determines if there are at most 'max' number of bits set in an 731 * array. Returns true if the number for bits set is <= max or will return false 732 * otherwise. 733 */ 734 static bool ice_bits_max_set(const u8 *mask, u16 size, u16 max) 735 { 736 u16 count = 0; 737 u16 i; 738 739 /* check each byte */ 740 for (i = 0; i < size; i++) { 741 /* if 0, go to next byte */ 742 if (!mask[i]) 743 continue; 744 745 /* We know there is at least one set bit in this byte because of 746 * the above check; if we already have found 'max' number of 747 * bits set, then we can return failure now. 748 */ 749 if (count == max) 750 return false; 751 752 /* count the bits in this byte, checking threshold */ 753 count += hweight8(mask[i]); 754 if (count > max) 755 return false; 756 } 757 758 return true; 759 } 760 761 /** 762 * ice_set_key - generate a variable sized key with multiples of 16-bits 763 * @key: pointer to where the key will be stored 764 * @size: the size of the complete key in bytes (must be even) 765 * @val: array of 8-bit values that makes up the value portion of the key 766 * @upd: array of 8-bit masks that determine what key portion to update 767 * @dc: array of 8-bit masks that make up the don't care mask 768 * @nm: array of 8-bit masks that make up the never match mask 769 * @off: the offset of the first byte in the key to update 770 * @len: the number of bytes in the key update 771 * 772 * This function generates a key from a value, a don't care mask and a never 773 * match mask. 774 * upd, dc, and nm are optional parameters, and can be NULL: 775 * upd == NULL --> upd mask is all 1's (update all bits) 776 * dc == NULL --> dc mask is all 0's (no don't care bits) 777 * nm == NULL --> nm mask is all 0's (no never match bits) 778 */ 779 static int 780 ice_set_key(u8 *key, u16 size, u8 *val, u8 *upd, u8 *dc, u8 *nm, u16 off, 781 u16 len) 782 { 783 u16 half_size; 784 u16 i; 785 786 /* size must be a multiple of 2 bytes. */ 787 if (size % 2) 788 return -EIO; 789 790 half_size = size / 2; 791 if (off + len > half_size) 792 return -EIO; 793 794 /* Make sure at most one bit is set in the never match mask. Having more 795 * than one never match mask bit set will cause HW to consume excessive 796 * power otherwise; this is a power management efficiency check. 797 */ 798 #define ICE_NVR_MTCH_BITS_MAX 1 799 if (nm && !ice_bits_max_set(nm, len, ICE_NVR_MTCH_BITS_MAX)) 800 return -EIO; 801 802 for (i = 0; i < len; i++) 803 if (ice_gen_key_word(val[i], upd ? upd[i] : 0xff, 804 dc ? dc[i] : 0, nm ? nm[i] : 0, 805 key + off + i, key + half_size + off + i)) 806 return -EIO; 807 808 return 0; 809 } 810 811 /** 812 * ice_acquire_global_cfg_lock 813 * @hw: pointer to the HW structure 814 * @access: access type (read or write) 815 * 816 * This function will request ownership of the global config lock for reading 817 * or writing of the package. When attempting to obtain write access, the 818 * caller must check for the following two return values: 819 * 820 * 0 - Means the caller has acquired the global config lock 821 * and can perform writing of the package. 822 * -EALREADY - Indicates another driver has already written the 823 * package or has found that no update was necessary; in 824 * this case, the caller can just skip performing any 825 * update of the package. 826 */ 827 static int 828 ice_acquire_global_cfg_lock(struct ice_hw *hw, 829 enum ice_aq_res_access_type access) 830 { 831 int status; 832 833 status = ice_acquire_res(hw, ICE_GLOBAL_CFG_LOCK_RES_ID, access, 834 ICE_GLOBAL_CFG_LOCK_TIMEOUT); 835 836 if (!status) 837 mutex_lock(&ice_global_cfg_lock_sw); 838 else if (status == -EALREADY) 839 ice_debug(hw, ICE_DBG_PKG, "Global config lock: No work to do\n"); 840 841 return status; 842 } 843 844 /** 845 * ice_release_global_cfg_lock 846 * @hw: pointer to the HW structure 847 * 848 * This function will release the global config lock. 849 */ 850 static void ice_release_global_cfg_lock(struct ice_hw *hw) 851 { 852 mutex_unlock(&ice_global_cfg_lock_sw); 853 ice_release_res(hw, ICE_GLOBAL_CFG_LOCK_RES_ID); 854 } 855 856 /** 857 * ice_acquire_change_lock 858 * @hw: pointer to the HW structure 859 * @access: access type (read or write) 860 * 861 * This function will request ownership of the change lock. 862 */ 863 int 864 ice_acquire_change_lock(struct ice_hw *hw, enum ice_aq_res_access_type access) 865 { 866 return ice_acquire_res(hw, ICE_CHANGE_LOCK_RES_ID, access, 867 ICE_CHANGE_LOCK_TIMEOUT); 868 } 869 870 /** 871 * ice_release_change_lock 872 * @hw: pointer to the HW structure 873 * 874 * This function will release the change lock using the proper Admin Command. 875 */ 876 void ice_release_change_lock(struct ice_hw *hw) 877 { 878 ice_release_res(hw, ICE_CHANGE_LOCK_RES_ID); 879 } 880 881 /** 882 * ice_aq_download_pkg 883 * @hw: pointer to the hardware structure 884 * @pkg_buf: the package buffer to transfer 885 * @buf_size: the size of the package buffer 886 * @last_buf: last buffer indicator 887 * @error_offset: returns error offset 888 * @error_info: returns error information 889 * @cd: pointer to command details structure or NULL 890 * 891 * Download Package (0x0C40) 892 */ 893 static int 894 ice_aq_download_pkg(struct ice_hw *hw, struct ice_buf_hdr *pkg_buf, 895 u16 buf_size, bool last_buf, u32 *error_offset, 896 u32 *error_info, struct ice_sq_cd *cd) 897 { 898 struct ice_aqc_download_pkg *cmd; 899 struct ice_aq_desc desc; 900 int status; 901 902 if (error_offset) 903 *error_offset = 0; 904 if (error_info) 905 *error_info = 0; 906 907 cmd = &desc.params.download_pkg; 908 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_download_pkg); 909 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); 910 911 if (last_buf) 912 cmd->flags |= ICE_AQC_DOWNLOAD_PKG_LAST_BUF; 913 914 status = ice_aq_send_cmd(hw, &desc, pkg_buf, buf_size, cd); 915 if (status == -EIO) { 916 /* Read error from buffer only when the FW returned an error */ 917 struct ice_aqc_download_pkg_resp *resp; 918 919 resp = (struct ice_aqc_download_pkg_resp *)pkg_buf; 920 if (error_offset) 921 *error_offset = le32_to_cpu(resp->error_offset); 922 if (error_info) 923 *error_info = le32_to_cpu(resp->error_info); 924 } 925 926 return status; 927 } 928 929 /** 930 * ice_aq_upload_section 931 * @hw: pointer to the hardware structure 932 * @pkg_buf: the package buffer which will receive the section 933 * @buf_size: the size of the package buffer 934 * @cd: pointer to command details structure or NULL 935 * 936 * Upload Section (0x0C41) 937 */ 938 int 939 ice_aq_upload_section(struct ice_hw *hw, struct ice_buf_hdr *pkg_buf, 940 u16 buf_size, struct ice_sq_cd *cd) 941 { 942 struct ice_aq_desc desc; 943 944 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_upload_section); 945 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); 946 947 return ice_aq_send_cmd(hw, &desc, pkg_buf, buf_size, cd); 948 } 949 950 /** 951 * ice_aq_update_pkg 952 * @hw: pointer to the hardware structure 953 * @pkg_buf: the package cmd buffer 954 * @buf_size: the size of the package cmd buffer 955 * @last_buf: last buffer indicator 956 * @error_offset: returns error offset 957 * @error_info: returns error information 958 * @cd: pointer to command details structure or NULL 959 * 960 * Update Package (0x0C42) 961 */ 962 static int 963 ice_aq_update_pkg(struct ice_hw *hw, struct ice_buf_hdr *pkg_buf, u16 buf_size, 964 bool last_buf, u32 *error_offset, u32 *error_info, 965 struct ice_sq_cd *cd) 966 { 967 struct ice_aqc_download_pkg *cmd; 968 struct ice_aq_desc desc; 969 int status; 970 971 if (error_offset) 972 *error_offset = 0; 973 if (error_info) 974 *error_info = 0; 975 976 cmd = &desc.params.download_pkg; 977 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_update_pkg); 978 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); 979 980 if (last_buf) 981 cmd->flags |= ICE_AQC_DOWNLOAD_PKG_LAST_BUF; 982 983 status = ice_aq_send_cmd(hw, &desc, pkg_buf, buf_size, cd); 984 if (status == -EIO) { 985 /* Read error from buffer only when the FW returned an error */ 986 struct ice_aqc_download_pkg_resp *resp; 987 988 resp = (struct ice_aqc_download_pkg_resp *)pkg_buf; 989 if (error_offset) 990 *error_offset = le32_to_cpu(resp->error_offset); 991 if (error_info) 992 *error_info = le32_to_cpu(resp->error_info); 993 } 994 995 return status; 996 } 997 998 /** 999 * ice_find_seg_in_pkg 1000 * @hw: pointer to the hardware structure 1001 * @seg_type: the segment type to search for (i.e., SEGMENT_TYPE_CPK) 1002 * @pkg_hdr: pointer to the package header to be searched 1003 * 1004 * This function searches a package file for a particular segment type. On 1005 * success it returns a pointer to the segment header, otherwise it will 1006 * return NULL. 1007 */ 1008 static struct ice_generic_seg_hdr * 1009 ice_find_seg_in_pkg(struct ice_hw *hw, u32 seg_type, 1010 struct ice_pkg_hdr *pkg_hdr) 1011 { 1012 u32 i; 1013 1014 ice_debug(hw, ICE_DBG_PKG, "Package format version: %d.%d.%d.%d\n", 1015 pkg_hdr->pkg_format_ver.major, pkg_hdr->pkg_format_ver.minor, 1016 pkg_hdr->pkg_format_ver.update, 1017 pkg_hdr->pkg_format_ver.draft); 1018 1019 /* Search all package segments for the requested segment type */ 1020 for (i = 0; i < le32_to_cpu(pkg_hdr->seg_count); i++) { 1021 struct ice_generic_seg_hdr *seg; 1022 1023 seg = (struct ice_generic_seg_hdr *) 1024 ((u8 *)pkg_hdr + le32_to_cpu(pkg_hdr->seg_offset[i])); 1025 1026 if (le32_to_cpu(seg->seg_type) == seg_type) 1027 return seg; 1028 } 1029 1030 return NULL; 1031 } 1032 1033 /** 1034 * ice_update_pkg_no_lock 1035 * @hw: pointer to the hardware structure 1036 * @bufs: pointer to an array of buffers 1037 * @count: the number of buffers in the array 1038 */ 1039 static int 1040 ice_update_pkg_no_lock(struct ice_hw *hw, struct ice_buf *bufs, u32 count) 1041 { 1042 int status = 0; 1043 u32 i; 1044 1045 for (i = 0; i < count; i++) { 1046 struct ice_buf_hdr *bh = (struct ice_buf_hdr *)(bufs + i); 1047 bool last = ((i + 1) == count); 1048 u32 offset, info; 1049 1050 status = ice_aq_update_pkg(hw, bh, le16_to_cpu(bh->data_end), 1051 last, &offset, &info, NULL); 1052 1053 if (status) { 1054 ice_debug(hw, ICE_DBG_PKG, "Update pkg failed: err %d off %d inf %d\n", 1055 status, offset, info); 1056 break; 1057 } 1058 } 1059 1060 return status; 1061 } 1062 1063 /** 1064 * ice_update_pkg 1065 * @hw: pointer to the hardware structure 1066 * @bufs: pointer to an array of buffers 1067 * @count: the number of buffers in the array 1068 * 1069 * Obtains change lock and updates package. 1070 */ 1071 static int ice_update_pkg(struct ice_hw *hw, struct ice_buf *bufs, u32 count) 1072 { 1073 int status; 1074 1075 status = ice_acquire_change_lock(hw, ICE_RES_WRITE); 1076 if (status) 1077 return status; 1078 1079 status = ice_update_pkg_no_lock(hw, bufs, count); 1080 1081 ice_release_change_lock(hw); 1082 1083 return status; 1084 } 1085 1086 static enum ice_ddp_state ice_map_aq_err_to_ddp_state(enum ice_aq_err aq_err) 1087 { 1088 switch (aq_err) { 1089 case ICE_AQ_RC_ENOSEC: 1090 case ICE_AQ_RC_EBADSIG: 1091 return ICE_DDP_PKG_FILE_SIGNATURE_INVALID; 1092 case ICE_AQ_RC_ESVN: 1093 return ICE_DDP_PKG_FILE_REVISION_TOO_LOW; 1094 case ICE_AQ_RC_EBADMAN: 1095 case ICE_AQ_RC_EBADBUF: 1096 return ICE_DDP_PKG_LOAD_ERROR; 1097 default: 1098 return ICE_DDP_PKG_ERR; 1099 } 1100 } 1101 1102 /** 1103 * ice_dwnld_cfg_bufs 1104 * @hw: pointer to the hardware structure 1105 * @bufs: pointer to an array of buffers 1106 * @count: the number of buffers in the array 1107 * 1108 * Obtains global config lock and downloads the package configuration buffers 1109 * to the firmware. Metadata buffers are skipped, and the first metadata buffer 1110 * found indicates that the rest of the buffers are all metadata buffers. 1111 */ 1112 static enum ice_ddp_state 1113 ice_dwnld_cfg_bufs(struct ice_hw *hw, struct ice_buf *bufs, u32 count) 1114 { 1115 enum ice_ddp_state state = ICE_DDP_PKG_SUCCESS; 1116 struct ice_buf_hdr *bh; 1117 enum ice_aq_err err; 1118 u32 offset, info, i; 1119 int status; 1120 1121 if (!bufs || !count) 1122 return ICE_DDP_PKG_ERR; 1123 1124 /* If the first buffer's first section has its metadata bit set 1125 * then there are no buffers to be downloaded, and the operation is 1126 * considered a success. 1127 */ 1128 bh = (struct ice_buf_hdr *)bufs; 1129 if (le32_to_cpu(bh->section_entry[0].type) & ICE_METADATA_BUF) 1130 return ICE_DDP_PKG_SUCCESS; 1131 1132 status = ice_acquire_global_cfg_lock(hw, ICE_RES_WRITE); 1133 if (status) { 1134 if (status == -EALREADY) 1135 return ICE_DDP_PKG_ALREADY_LOADED; 1136 return ice_map_aq_err_to_ddp_state(hw->adminq.sq_last_status); 1137 } 1138 1139 for (i = 0; i < count; i++) { 1140 bool last = ((i + 1) == count); 1141 1142 if (!last) { 1143 /* check next buffer for metadata flag */ 1144 bh = (struct ice_buf_hdr *)(bufs + i + 1); 1145 1146 /* A set metadata flag in the next buffer will signal 1147 * that the current buffer will be the last buffer 1148 * downloaded 1149 */ 1150 if (le16_to_cpu(bh->section_count)) 1151 if (le32_to_cpu(bh->section_entry[0].type) & 1152 ICE_METADATA_BUF) 1153 last = true; 1154 } 1155 1156 bh = (struct ice_buf_hdr *)(bufs + i); 1157 1158 status = ice_aq_download_pkg(hw, bh, ICE_PKG_BUF_SIZE, last, 1159 &offset, &info, NULL); 1160 1161 /* Save AQ status from download package */ 1162 if (status) { 1163 ice_debug(hw, ICE_DBG_PKG, "Pkg download failed: err %d off %d inf %d\n", 1164 status, offset, info); 1165 err = hw->adminq.sq_last_status; 1166 state = ice_map_aq_err_to_ddp_state(err); 1167 break; 1168 } 1169 1170 if (last) 1171 break; 1172 } 1173 1174 if (!status) { 1175 status = ice_set_vlan_mode(hw); 1176 if (status) 1177 ice_debug(hw, ICE_DBG_PKG, "Failed to set VLAN mode: err %d\n", 1178 status); 1179 } 1180 1181 ice_release_global_cfg_lock(hw); 1182 1183 return state; 1184 } 1185 1186 /** 1187 * ice_aq_get_pkg_info_list 1188 * @hw: pointer to the hardware structure 1189 * @pkg_info: the buffer which will receive the information list 1190 * @buf_size: the size of the pkg_info information buffer 1191 * @cd: pointer to command details structure or NULL 1192 * 1193 * Get Package Info List (0x0C43) 1194 */ 1195 static int 1196 ice_aq_get_pkg_info_list(struct ice_hw *hw, 1197 struct ice_aqc_get_pkg_info_resp *pkg_info, 1198 u16 buf_size, struct ice_sq_cd *cd) 1199 { 1200 struct ice_aq_desc desc; 1201 1202 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_pkg_info_list); 1203 1204 return ice_aq_send_cmd(hw, &desc, pkg_info, buf_size, cd); 1205 } 1206 1207 /** 1208 * ice_download_pkg 1209 * @hw: pointer to the hardware structure 1210 * @ice_seg: pointer to the segment of the package to be downloaded 1211 * 1212 * Handles the download of a complete package. 1213 */ 1214 static enum ice_ddp_state 1215 ice_download_pkg(struct ice_hw *hw, struct ice_seg *ice_seg) 1216 { 1217 struct ice_buf_table *ice_buf_tbl; 1218 int status; 1219 1220 ice_debug(hw, ICE_DBG_PKG, "Segment format version: %d.%d.%d.%d\n", 1221 ice_seg->hdr.seg_format_ver.major, 1222 ice_seg->hdr.seg_format_ver.minor, 1223 ice_seg->hdr.seg_format_ver.update, 1224 ice_seg->hdr.seg_format_ver.draft); 1225 1226 ice_debug(hw, ICE_DBG_PKG, "Seg: type 0x%X, size %d, name %s\n", 1227 le32_to_cpu(ice_seg->hdr.seg_type), 1228 le32_to_cpu(ice_seg->hdr.seg_size), ice_seg->hdr.seg_id); 1229 1230 ice_buf_tbl = ice_find_buf_table(ice_seg); 1231 1232 ice_debug(hw, ICE_DBG_PKG, "Seg buf count: %d\n", 1233 le32_to_cpu(ice_buf_tbl->buf_count)); 1234 1235 status = ice_dwnld_cfg_bufs(hw, ice_buf_tbl->buf_array, 1236 le32_to_cpu(ice_buf_tbl->buf_count)); 1237 1238 ice_post_pkg_dwnld_vlan_mode_cfg(hw); 1239 1240 return status; 1241 } 1242 1243 /** 1244 * ice_init_pkg_info 1245 * @hw: pointer to the hardware structure 1246 * @pkg_hdr: pointer to the driver's package hdr 1247 * 1248 * Saves off the package details into the HW structure. 1249 */ 1250 static enum ice_ddp_state 1251 ice_init_pkg_info(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr) 1252 { 1253 struct ice_generic_seg_hdr *seg_hdr; 1254 1255 if (!pkg_hdr) 1256 return ICE_DDP_PKG_ERR; 1257 1258 seg_hdr = ice_find_seg_in_pkg(hw, SEGMENT_TYPE_ICE, pkg_hdr); 1259 if (seg_hdr) { 1260 struct ice_meta_sect *meta; 1261 struct ice_pkg_enum state; 1262 1263 memset(&state, 0, sizeof(state)); 1264 1265 /* Get package information from the Metadata Section */ 1266 meta = ice_pkg_enum_section((struct ice_seg *)seg_hdr, &state, 1267 ICE_SID_METADATA); 1268 if (!meta) { 1269 ice_debug(hw, ICE_DBG_INIT, "Did not find ice metadata section in package\n"); 1270 return ICE_DDP_PKG_INVALID_FILE; 1271 } 1272 1273 hw->pkg_ver = meta->ver; 1274 memcpy(hw->pkg_name, meta->name, sizeof(meta->name)); 1275 1276 ice_debug(hw, ICE_DBG_PKG, "Pkg: %d.%d.%d.%d, %s\n", 1277 meta->ver.major, meta->ver.minor, meta->ver.update, 1278 meta->ver.draft, meta->name); 1279 1280 hw->ice_seg_fmt_ver = seg_hdr->seg_format_ver; 1281 memcpy(hw->ice_seg_id, seg_hdr->seg_id, 1282 sizeof(hw->ice_seg_id)); 1283 1284 ice_debug(hw, ICE_DBG_PKG, "Ice Seg: %d.%d.%d.%d, %s\n", 1285 seg_hdr->seg_format_ver.major, 1286 seg_hdr->seg_format_ver.minor, 1287 seg_hdr->seg_format_ver.update, 1288 seg_hdr->seg_format_ver.draft, 1289 seg_hdr->seg_id); 1290 } else { 1291 ice_debug(hw, ICE_DBG_INIT, "Did not find ice segment in driver package\n"); 1292 return ICE_DDP_PKG_INVALID_FILE; 1293 } 1294 1295 return ICE_DDP_PKG_SUCCESS; 1296 } 1297 1298 /** 1299 * ice_get_pkg_info 1300 * @hw: pointer to the hardware structure 1301 * 1302 * Store details of the package currently loaded in HW into the HW structure. 1303 */ 1304 static enum ice_ddp_state ice_get_pkg_info(struct ice_hw *hw) 1305 { 1306 enum ice_ddp_state state = ICE_DDP_PKG_SUCCESS; 1307 struct ice_aqc_get_pkg_info_resp *pkg_info; 1308 u16 size; 1309 u32 i; 1310 1311 size = struct_size(pkg_info, pkg_info, ICE_PKG_CNT); 1312 pkg_info = kzalloc(size, GFP_KERNEL); 1313 if (!pkg_info) 1314 return ICE_DDP_PKG_ERR; 1315 1316 if (ice_aq_get_pkg_info_list(hw, pkg_info, size, NULL)) { 1317 state = ICE_DDP_PKG_ERR; 1318 goto init_pkg_free_alloc; 1319 } 1320 1321 for (i = 0; i < le32_to_cpu(pkg_info->count); i++) { 1322 #define ICE_PKG_FLAG_COUNT 4 1323 char flags[ICE_PKG_FLAG_COUNT + 1] = { 0 }; 1324 u8 place = 0; 1325 1326 if (pkg_info->pkg_info[i].is_active) { 1327 flags[place++] = 'A'; 1328 hw->active_pkg_ver = pkg_info->pkg_info[i].ver; 1329 hw->active_track_id = 1330 le32_to_cpu(pkg_info->pkg_info[i].track_id); 1331 memcpy(hw->active_pkg_name, 1332 pkg_info->pkg_info[i].name, 1333 sizeof(pkg_info->pkg_info[i].name)); 1334 hw->active_pkg_in_nvm = pkg_info->pkg_info[i].is_in_nvm; 1335 } 1336 if (pkg_info->pkg_info[i].is_active_at_boot) 1337 flags[place++] = 'B'; 1338 if (pkg_info->pkg_info[i].is_modified) 1339 flags[place++] = 'M'; 1340 if (pkg_info->pkg_info[i].is_in_nvm) 1341 flags[place++] = 'N'; 1342 1343 ice_debug(hw, ICE_DBG_PKG, "Pkg[%d]: %d.%d.%d.%d,%s,%s\n", 1344 i, pkg_info->pkg_info[i].ver.major, 1345 pkg_info->pkg_info[i].ver.minor, 1346 pkg_info->pkg_info[i].ver.update, 1347 pkg_info->pkg_info[i].ver.draft, 1348 pkg_info->pkg_info[i].name, flags); 1349 } 1350 1351 init_pkg_free_alloc: 1352 kfree(pkg_info); 1353 1354 return state; 1355 } 1356 1357 /** 1358 * ice_verify_pkg - verify package 1359 * @pkg: pointer to the package buffer 1360 * @len: size of the package buffer 1361 * 1362 * Verifies various attributes of the package file, including length, format 1363 * version, and the requirement of at least one segment. 1364 */ 1365 static enum ice_ddp_state ice_verify_pkg(struct ice_pkg_hdr *pkg, u32 len) 1366 { 1367 u32 seg_count; 1368 u32 i; 1369 1370 if (len < struct_size(pkg, seg_offset, 1)) 1371 return ICE_DDP_PKG_INVALID_FILE; 1372 1373 if (pkg->pkg_format_ver.major != ICE_PKG_FMT_VER_MAJ || 1374 pkg->pkg_format_ver.minor != ICE_PKG_FMT_VER_MNR || 1375 pkg->pkg_format_ver.update != ICE_PKG_FMT_VER_UPD || 1376 pkg->pkg_format_ver.draft != ICE_PKG_FMT_VER_DFT) 1377 return ICE_DDP_PKG_INVALID_FILE; 1378 1379 /* pkg must have at least one segment */ 1380 seg_count = le32_to_cpu(pkg->seg_count); 1381 if (seg_count < 1) 1382 return ICE_DDP_PKG_INVALID_FILE; 1383 1384 /* make sure segment array fits in package length */ 1385 if (len < struct_size(pkg, seg_offset, seg_count)) 1386 return ICE_DDP_PKG_INVALID_FILE; 1387 1388 /* all segments must fit within length */ 1389 for (i = 0; i < seg_count; i++) { 1390 u32 off = le32_to_cpu(pkg->seg_offset[i]); 1391 struct ice_generic_seg_hdr *seg; 1392 1393 /* segment header must fit */ 1394 if (len < off + sizeof(*seg)) 1395 return ICE_DDP_PKG_INVALID_FILE; 1396 1397 seg = (struct ice_generic_seg_hdr *)((u8 *)pkg + off); 1398 1399 /* segment body must fit */ 1400 if (len < off + le32_to_cpu(seg->seg_size)) 1401 return ICE_DDP_PKG_INVALID_FILE; 1402 } 1403 1404 return ICE_DDP_PKG_SUCCESS; 1405 } 1406 1407 /** 1408 * ice_free_seg - free package segment pointer 1409 * @hw: pointer to the hardware structure 1410 * 1411 * Frees the package segment pointer in the proper manner, depending on if the 1412 * segment was allocated or just the passed in pointer was stored. 1413 */ 1414 void ice_free_seg(struct ice_hw *hw) 1415 { 1416 if (hw->pkg_copy) { 1417 devm_kfree(ice_hw_to_dev(hw), hw->pkg_copy); 1418 hw->pkg_copy = NULL; 1419 hw->pkg_size = 0; 1420 } 1421 hw->seg = NULL; 1422 } 1423 1424 /** 1425 * ice_init_pkg_regs - initialize additional package registers 1426 * @hw: pointer to the hardware structure 1427 */ 1428 static void ice_init_pkg_regs(struct ice_hw *hw) 1429 { 1430 #define ICE_SW_BLK_INP_MASK_L 0xFFFFFFFF 1431 #define ICE_SW_BLK_INP_MASK_H 0x0000FFFF 1432 #define ICE_SW_BLK_IDX 0 1433 1434 /* setup Switch block input mask, which is 48-bits in two parts */ 1435 wr32(hw, GL_PREEXT_L2_PMASK0(ICE_SW_BLK_IDX), ICE_SW_BLK_INP_MASK_L); 1436 wr32(hw, GL_PREEXT_L2_PMASK1(ICE_SW_BLK_IDX), ICE_SW_BLK_INP_MASK_H); 1437 } 1438 1439 /** 1440 * ice_chk_pkg_version - check package version for compatibility with driver 1441 * @pkg_ver: pointer to a version structure to check 1442 * 1443 * Check to make sure that the package about to be downloaded is compatible with 1444 * the driver. To be compatible, the major and minor components of the package 1445 * version must match our ICE_PKG_SUPP_VER_MAJ and ICE_PKG_SUPP_VER_MNR 1446 * definitions. 1447 */ 1448 static enum ice_ddp_state ice_chk_pkg_version(struct ice_pkg_ver *pkg_ver) 1449 { 1450 if (pkg_ver->major > ICE_PKG_SUPP_VER_MAJ || 1451 (pkg_ver->major == ICE_PKG_SUPP_VER_MAJ && 1452 pkg_ver->minor > ICE_PKG_SUPP_VER_MNR)) 1453 return ICE_DDP_PKG_FILE_VERSION_TOO_HIGH; 1454 else if (pkg_ver->major < ICE_PKG_SUPP_VER_MAJ || 1455 (pkg_ver->major == ICE_PKG_SUPP_VER_MAJ && 1456 pkg_ver->minor < ICE_PKG_SUPP_VER_MNR)) 1457 return ICE_DDP_PKG_FILE_VERSION_TOO_LOW; 1458 1459 return ICE_DDP_PKG_SUCCESS; 1460 } 1461 1462 /** 1463 * ice_chk_pkg_compat 1464 * @hw: pointer to the hardware structure 1465 * @ospkg: pointer to the package hdr 1466 * @seg: pointer to the package segment hdr 1467 * 1468 * This function checks the package version compatibility with driver and NVM 1469 */ 1470 static enum ice_ddp_state 1471 ice_chk_pkg_compat(struct ice_hw *hw, struct ice_pkg_hdr *ospkg, 1472 struct ice_seg **seg) 1473 { 1474 struct ice_aqc_get_pkg_info_resp *pkg; 1475 enum ice_ddp_state state; 1476 u16 size; 1477 u32 i; 1478 1479 /* Check package version compatibility */ 1480 state = ice_chk_pkg_version(&hw->pkg_ver); 1481 if (state) { 1482 ice_debug(hw, ICE_DBG_INIT, "Package version check failed.\n"); 1483 return state; 1484 } 1485 1486 /* find ICE segment in given package */ 1487 *seg = (struct ice_seg *)ice_find_seg_in_pkg(hw, SEGMENT_TYPE_ICE, 1488 ospkg); 1489 if (!*seg) { 1490 ice_debug(hw, ICE_DBG_INIT, "no ice segment in package.\n"); 1491 return ICE_DDP_PKG_INVALID_FILE; 1492 } 1493 1494 /* Check if FW is compatible with the OS package */ 1495 size = struct_size(pkg, pkg_info, ICE_PKG_CNT); 1496 pkg = kzalloc(size, GFP_KERNEL); 1497 if (!pkg) 1498 return ICE_DDP_PKG_ERR; 1499 1500 if (ice_aq_get_pkg_info_list(hw, pkg, size, NULL)) { 1501 state = ICE_DDP_PKG_LOAD_ERROR; 1502 goto fw_ddp_compat_free_alloc; 1503 } 1504 1505 for (i = 0; i < le32_to_cpu(pkg->count); i++) { 1506 /* loop till we find the NVM package */ 1507 if (!pkg->pkg_info[i].is_in_nvm) 1508 continue; 1509 if ((*seg)->hdr.seg_format_ver.major != 1510 pkg->pkg_info[i].ver.major || 1511 (*seg)->hdr.seg_format_ver.minor > 1512 pkg->pkg_info[i].ver.minor) { 1513 state = ICE_DDP_PKG_FW_MISMATCH; 1514 ice_debug(hw, ICE_DBG_INIT, "OS package is not compatible with NVM.\n"); 1515 } 1516 /* done processing NVM package so break */ 1517 break; 1518 } 1519 fw_ddp_compat_free_alloc: 1520 kfree(pkg); 1521 return state; 1522 } 1523 1524 /** 1525 * ice_sw_fv_handler 1526 * @sect_type: section type 1527 * @section: pointer to section 1528 * @index: index of the field vector entry to be returned 1529 * @offset: ptr to variable that receives the offset in the field vector table 1530 * 1531 * This is a callback function that can be passed to ice_pkg_enum_entry. 1532 * This function treats the given section as of type ice_sw_fv_section and 1533 * enumerates offset field. "offset" is an index into the field vector table. 1534 */ 1535 static void * 1536 ice_sw_fv_handler(u32 sect_type, void *section, u32 index, u32 *offset) 1537 { 1538 struct ice_sw_fv_section *fv_section = section; 1539 1540 if (!section || sect_type != ICE_SID_FLD_VEC_SW) 1541 return NULL; 1542 if (index >= le16_to_cpu(fv_section->count)) 1543 return NULL; 1544 if (offset) 1545 /* "index" passed in to this function is relative to a given 1546 * 4k block. To get to the true index into the field vector 1547 * table need to add the relative index to the base_offset 1548 * field of this section 1549 */ 1550 *offset = le16_to_cpu(fv_section->base_offset) + index; 1551 return fv_section->fv + index; 1552 } 1553 1554 /** 1555 * ice_get_prof_index_max - get the max profile index for used profile 1556 * @hw: pointer to the HW struct 1557 * 1558 * Calling this function will get the max profile index for used profile 1559 * and store the index number in struct ice_switch_info *switch_info 1560 * in HW for following use. 1561 */ 1562 static int ice_get_prof_index_max(struct ice_hw *hw) 1563 { 1564 u16 prof_index = 0, j, max_prof_index = 0; 1565 struct ice_pkg_enum state; 1566 struct ice_seg *ice_seg; 1567 bool flag = false; 1568 struct ice_fv *fv; 1569 u32 offset; 1570 1571 memset(&state, 0, sizeof(state)); 1572 1573 if (!hw->seg) 1574 return -EINVAL; 1575 1576 ice_seg = hw->seg; 1577 1578 do { 1579 fv = ice_pkg_enum_entry(ice_seg, &state, ICE_SID_FLD_VEC_SW, 1580 &offset, ice_sw_fv_handler); 1581 if (!fv) 1582 break; 1583 ice_seg = NULL; 1584 1585 /* in the profile that not be used, the prot_id is set to 0xff 1586 * and the off is set to 0x1ff for all the field vectors. 1587 */ 1588 for (j = 0; j < hw->blk[ICE_BLK_SW].es.fvw; j++) 1589 if (fv->ew[j].prot_id != ICE_PROT_INVALID || 1590 fv->ew[j].off != ICE_FV_OFFSET_INVAL) 1591 flag = true; 1592 if (flag && prof_index > max_prof_index) 1593 max_prof_index = prof_index; 1594 1595 prof_index++; 1596 flag = false; 1597 } while (fv); 1598 1599 hw->switch_info->max_used_prof_index = max_prof_index; 1600 1601 return 0; 1602 } 1603 1604 /** 1605 * ice_get_ddp_pkg_state - get DDP pkg state after download 1606 * @hw: pointer to the HW struct 1607 * @already_loaded: indicates if pkg was already loaded onto the device 1608 */ 1609 static enum ice_ddp_state 1610 ice_get_ddp_pkg_state(struct ice_hw *hw, bool already_loaded) 1611 { 1612 if (hw->pkg_ver.major == hw->active_pkg_ver.major && 1613 hw->pkg_ver.minor == hw->active_pkg_ver.minor && 1614 hw->pkg_ver.update == hw->active_pkg_ver.update && 1615 hw->pkg_ver.draft == hw->active_pkg_ver.draft && 1616 !memcmp(hw->pkg_name, hw->active_pkg_name, sizeof(hw->pkg_name))) { 1617 if (already_loaded) 1618 return ICE_DDP_PKG_SAME_VERSION_ALREADY_LOADED; 1619 else 1620 return ICE_DDP_PKG_SUCCESS; 1621 } else if (hw->active_pkg_ver.major != ICE_PKG_SUPP_VER_MAJ || 1622 hw->active_pkg_ver.minor != ICE_PKG_SUPP_VER_MNR) { 1623 return ICE_DDP_PKG_ALREADY_LOADED_NOT_SUPPORTED; 1624 } else if (hw->active_pkg_ver.major == ICE_PKG_SUPP_VER_MAJ && 1625 hw->active_pkg_ver.minor == ICE_PKG_SUPP_VER_MNR) { 1626 return ICE_DDP_PKG_COMPATIBLE_ALREADY_LOADED; 1627 } else { 1628 return ICE_DDP_PKG_ERR; 1629 } 1630 } 1631 1632 /** 1633 * ice_init_pkg - initialize/download package 1634 * @hw: pointer to the hardware structure 1635 * @buf: pointer to the package buffer 1636 * @len: size of the package buffer 1637 * 1638 * This function initializes a package. The package contains HW tables 1639 * required to do packet processing. First, the function extracts package 1640 * information such as version. Then it finds the ice configuration segment 1641 * within the package; this function then saves a copy of the segment pointer 1642 * within the supplied package buffer. Next, the function will cache any hints 1643 * from the package, followed by downloading the package itself. Note, that if 1644 * a previous PF driver has already downloaded the package successfully, then 1645 * the current driver will not have to download the package again. 1646 * 1647 * The local package contents will be used to query default behavior and to 1648 * update specific sections of the HW's version of the package (e.g. to update 1649 * the parse graph to understand new protocols). 1650 * 1651 * This function stores a pointer to the package buffer memory, and it is 1652 * expected that the supplied buffer will not be freed immediately. If the 1653 * package buffer needs to be freed, such as when read from a file, use 1654 * ice_copy_and_init_pkg() instead of directly calling ice_init_pkg() in this 1655 * case. 1656 */ 1657 enum ice_ddp_state ice_init_pkg(struct ice_hw *hw, u8 *buf, u32 len) 1658 { 1659 bool already_loaded = false; 1660 enum ice_ddp_state state; 1661 struct ice_pkg_hdr *pkg; 1662 struct ice_seg *seg; 1663 1664 if (!buf || !len) 1665 return ICE_DDP_PKG_ERR; 1666 1667 pkg = (struct ice_pkg_hdr *)buf; 1668 state = ice_verify_pkg(pkg, len); 1669 if (state) { 1670 ice_debug(hw, ICE_DBG_INIT, "failed to verify pkg (err: %d)\n", 1671 state); 1672 return state; 1673 } 1674 1675 /* initialize package info */ 1676 state = ice_init_pkg_info(hw, pkg); 1677 if (state) 1678 return state; 1679 1680 /* before downloading the package, check package version for 1681 * compatibility with driver 1682 */ 1683 state = ice_chk_pkg_compat(hw, pkg, &seg); 1684 if (state) 1685 return state; 1686 1687 /* initialize package hints and then download package */ 1688 ice_init_pkg_hints(hw, seg); 1689 state = ice_download_pkg(hw, seg); 1690 if (state == ICE_DDP_PKG_ALREADY_LOADED) { 1691 ice_debug(hw, ICE_DBG_INIT, "package previously loaded - no work.\n"); 1692 already_loaded = true; 1693 } 1694 1695 /* Get information on the package currently loaded in HW, then make sure 1696 * the driver is compatible with this version. 1697 */ 1698 if (!state || state == ICE_DDP_PKG_ALREADY_LOADED) { 1699 state = ice_get_pkg_info(hw); 1700 if (!state) 1701 state = ice_get_ddp_pkg_state(hw, already_loaded); 1702 } 1703 1704 if (ice_is_init_pkg_successful(state)) { 1705 hw->seg = seg; 1706 /* on successful package download update other required 1707 * registers to support the package and fill HW tables 1708 * with package content. 1709 */ 1710 ice_init_pkg_regs(hw); 1711 ice_fill_blk_tbls(hw); 1712 ice_fill_hw_ptype(hw); 1713 ice_get_prof_index_max(hw); 1714 } else { 1715 ice_debug(hw, ICE_DBG_INIT, "package load failed, %d\n", 1716 state); 1717 } 1718 1719 return state; 1720 } 1721 1722 /** 1723 * ice_copy_and_init_pkg - initialize/download a copy of the package 1724 * @hw: pointer to the hardware structure 1725 * @buf: pointer to the package buffer 1726 * @len: size of the package buffer 1727 * 1728 * This function copies the package buffer, and then calls ice_init_pkg() to 1729 * initialize the copied package contents. 1730 * 1731 * The copying is necessary if the package buffer supplied is constant, or if 1732 * the memory may disappear shortly after calling this function. 1733 * 1734 * If the package buffer resides in the data segment and can be modified, the 1735 * caller is free to use ice_init_pkg() instead of ice_copy_and_init_pkg(). 1736 * 1737 * However, if the package buffer needs to be copied first, such as when being 1738 * read from a file, the caller should use ice_copy_and_init_pkg(). 1739 * 1740 * This function will first copy the package buffer, before calling 1741 * ice_init_pkg(). The caller is free to immediately destroy the original 1742 * package buffer, as the new copy will be managed by this function and 1743 * related routines. 1744 */ 1745 enum ice_ddp_state 1746 ice_copy_and_init_pkg(struct ice_hw *hw, const u8 *buf, u32 len) 1747 { 1748 enum ice_ddp_state state; 1749 u8 *buf_copy; 1750 1751 if (!buf || !len) 1752 return ICE_DDP_PKG_ERR; 1753 1754 buf_copy = devm_kmemdup(ice_hw_to_dev(hw), buf, len, GFP_KERNEL); 1755 1756 state = ice_init_pkg(hw, buf_copy, len); 1757 if (!ice_is_init_pkg_successful(state)) { 1758 /* Free the copy, since we failed to initialize the package */ 1759 devm_kfree(ice_hw_to_dev(hw), buf_copy); 1760 } else { 1761 /* Track the copied pkg so we can free it later */ 1762 hw->pkg_copy = buf_copy; 1763 hw->pkg_size = len; 1764 } 1765 1766 return state; 1767 } 1768 1769 /** 1770 * ice_is_init_pkg_successful - check if DDP init was successful 1771 * @state: state of the DDP pkg after download 1772 */ 1773 bool ice_is_init_pkg_successful(enum ice_ddp_state state) 1774 { 1775 switch (state) { 1776 case ICE_DDP_PKG_SUCCESS: 1777 case ICE_DDP_PKG_SAME_VERSION_ALREADY_LOADED: 1778 case ICE_DDP_PKG_COMPATIBLE_ALREADY_LOADED: 1779 return true; 1780 default: 1781 return false; 1782 } 1783 } 1784 1785 /** 1786 * ice_pkg_buf_alloc 1787 * @hw: pointer to the HW structure 1788 * 1789 * Allocates a package buffer and returns a pointer to the buffer header. 1790 * Note: all package contents must be in Little Endian form. 1791 */ 1792 static struct ice_buf_build *ice_pkg_buf_alloc(struct ice_hw *hw) 1793 { 1794 struct ice_buf_build *bld; 1795 struct ice_buf_hdr *buf; 1796 1797 bld = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*bld), GFP_KERNEL); 1798 if (!bld) 1799 return NULL; 1800 1801 buf = (struct ice_buf_hdr *)bld; 1802 buf->data_end = cpu_to_le16(offsetof(struct ice_buf_hdr, 1803 section_entry)); 1804 return bld; 1805 } 1806 1807 /** 1808 * ice_get_sw_prof_type - determine switch profile type 1809 * @hw: pointer to the HW structure 1810 * @fv: pointer to the switch field vector 1811 */ 1812 static enum ice_prof_type 1813 ice_get_sw_prof_type(struct ice_hw *hw, struct ice_fv *fv) 1814 { 1815 u16 i; 1816 1817 for (i = 0; i < hw->blk[ICE_BLK_SW].es.fvw; i++) { 1818 /* UDP tunnel will have UDP_OF protocol ID and VNI offset */ 1819 if (fv->ew[i].prot_id == (u8)ICE_PROT_UDP_OF && 1820 fv->ew[i].off == ICE_VNI_OFFSET) 1821 return ICE_PROF_TUN_UDP; 1822 1823 /* GRE tunnel will have GRE protocol */ 1824 if (fv->ew[i].prot_id == (u8)ICE_PROT_GRE_OF) 1825 return ICE_PROF_TUN_GRE; 1826 } 1827 1828 return ICE_PROF_NON_TUN; 1829 } 1830 1831 /** 1832 * ice_get_sw_fv_bitmap - Get switch field vector bitmap based on profile type 1833 * @hw: pointer to hardware structure 1834 * @req_profs: type of profiles requested 1835 * @bm: pointer to memory for returning the bitmap of field vectors 1836 */ 1837 void 1838 ice_get_sw_fv_bitmap(struct ice_hw *hw, enum ice_prof_type req_profs, 1839 unsigned long *bm) 1840 { 1841 struct ice_pkg_enum state; 1842 struct ice_seg *ice_seg; 1843 struct ice_fv *fv; 1844 1845 if (req_profs == ICE_PROF_ALL) { 1846 bitmap_set(bm, 0, ICE_MAX_NUM_PROFILES); 1847 return; 1848 } 1849 1850 memset(&state, 0, sizeof(state)); 1851 bitmap_zero(bm, ICE_MAX_NUM_PROFILES); 1852 ice_seg = hw->seg; 1853 do { 1854 enum ice_prof_type prof_type; 1855 u32 offset; 1856 1857 fv = ice_pkg_enum_entry(ice_seg, &state, ICE_SID_FLD_VEC_SW, 1858 &offset, ice_sw_fv_handler); 1859 ice_seg = NULL; 1860 1861 if (fv) { 1862 /* Determine field vector type */ 1863 prof_type = ice_get_sw_prof_type(hw, fv); 1864 1865 if (req_profs & prof_type) 1866 set_bit((u16)offset, bm); 1867 } 1868 } while (fv); 1869 } 1870 1871 /** 1872 * ice_get_sw_fv_list 1873 * @hw: pointer to the HW structure 1874 * @lkups: list of protocol types 1875 * @bm: bitmap of field vectors to consider 1876 * @fv_list: Head of a list 1877 * 1878 * Finds all the field vector entries from switch block that contain 1879 * a given protocol ID and offset and returns a list of structures of type 1880 * "ice_sw_fv_list_entry". Every structure in the list has a field vector 1881 * definition and profile ID information 1882 * NOTE: The caller of the function is responsible for freeing the memory 1883 * allocated for every list entry. 1884 */ 1885 int 1886 ice_get_sw_fv_list(struct ice_hw *hw, struct ice_prot_lkup_ext *lkups, 1887 unsigned long *bm, struct list_head *fv_list) 1888 { 1889 struct ice_sw_fv_list_entry *fvl; 1890 struct ice_sw_fv_list_entry *tmp; 1891 struct ice_pkg_enum state; 1892 struct ice_seg *ice_seg; 1893 struct ice_fv *fv; 1894 u32 offset; 1895 1896 memset(&state, 0, sizeof(state)); 1897 1898 if (!lkups->n_val_words || !hw->seg) 1899 return -EINVAL; 1900 1901 ice_seg = hw->seg; 1902 do { 1903 u16 i; 1904 1905 fv = ice_pkg_enum_entry(ice_seg, &state, ICE_SID_FLD_VEC_SW, 1906 &offset, ice_sw_fv_handler); 1907 if (!fv) 1908 break; 1909 ice_seg = NULL; 1910 1911 /* If field vector is not in the bitmap list, then skip this 1912 * profile. 1913 */ 1914 if (!test_bit((u16)offset, bm)) 1915 continue; 1916 1917 for (i = 0; i < lkups->n_val_words; i++) { 1918 int j; 1919 1920 for (j = 0; j < hw->blk[ICE_BLK_SW].es.fvw; j++) 1921 if (fv->ew[j].prot_id == 1922 lkups->fv_words[i].prot_id && 1923 fv->ew[j].off == lkups->fv_words[i].off) 1924 break; 1925 if (j >= hw->blk[ICE_BLK_SW].es.fvw) 1926 break; 1927 if (i + 1 == lkups->n_val_words) { 1928 fvl = devm_kzalloc(ice_hw_to_dev(hw), 1929 sizeof(*fvl), GFP_KERNEL); 1930 if (!fvl) 1931 goto err; 1932 fvl->fv_ptr = fv; 1933 fvl->profile_id = offset; 1934 list_add(&fvl->list_entry, fv_list); 1935 break; 1936 } 1937 } 1938 } while (fv); 1939 if (list_empty(fv_list)) 1940 return -EIO; 1941 return 0; 1942 1943 err: 1944 list_for_each_entry_safe(fvl, tmp, fv_list, list_entry) { 1945 list_del(&fvl->list_entry); 1946 devm_kfree(ice_hw_to_dev(hw), fvl); 1947 } 1948 1949 return -ENOMEM; 1950 } 1951 1952 /** 1953 * ice_init_prof_result_bm - Initialize the profile result index bitmap 1954 * @hw: pointer to hardware structure 1955 */ 1956 void ice_init_prof_result_bm(struct ice_hw *hw) 1957 { 1958 struct ice_pkg_enum state; 1959 struct ice_seg *ice_seg; 1960 struct ice_fv *fv; 1961 1962 memset(&state, 0, sizeof(state)); 1963 1964 if (!hw->seg) 1965 return; 1966 1967 ice_seg = hw->seg; 1968 do { 1969 u32 off; 1970 u16 i; 1971 1972 fv = ice_pkg_enum_entry(ice_seg, &state, ICE_SID_FLD_VEC_SW, 1973 &off, ice_sw_fv_handler); 1974 ice_seg = NULL; 1975 if (!fv) 1976 break; 1977 1978 bitmap_zero(hw->switch_info->prof_res_bm[off], 1979 ICE_MAX_FV_WORDS); 1980 1981 /* Determine empty field vector indices, these can be 1982 * used for recipe results. Skip index 0, since it is 1983 * always used for Switch ID. 1984 */ 1985 for (i = 1; i < ICE_MAX_FV_WORDS; i++) 1986 if (fv->ew[i].prot_id == ICE_PROT_INVALID && 1987 fv->ew[i].off == ICE_FV_OFFSET_INVAL) 1988 set_bit(i, hw->switch_info->prof_res_bm[off]); 1989 } while (fv); 1990 } 1991 1992 /** 1993 * ice_pkg_buf_free 1994 * @hw: pointer to the HW structure 1995 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc()) 1996 * 1997 * Frees a package buffer 1998 */ 1999 void ice_pkg_buf_free(struct ice_hw *hw, struct ice_buf_build *bld) 2000 { 2001 devm_kfree(ice_hw_to_dev(hw), bld); 2002 } 2003 2004 /** 2005 * ice_pkg_buf_reserve_section 2006 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc()) 2007 * @count: the number of sections to reserve 2008 * 2009 * Reserves one or more section table entries in a package buffer. This routine 2010 * can be called multiple times as long as they are made before calling 2011 * ice_pkg_buf_alloc_section(). Once ice_pkg_buf_alloc_section() 2012 * is called once, the number of sections that can be allocated will not be able 2013 * to be increased; not using all reserved sections is fine, but this will 2014 * result in some wasted space in the buffer. 2015 * Note: all package contents must be in Little Endian form. 2016 */ 2017 static int 2018 ice_pkg_buf_reserve_section(struct ice_buf_build *bld, u16 count) 2019 { 2020 struct ice_buf_hdr *buf; 2021 u16 section_count; 2022 u16 data_end; 2023 2024 if (!bld) 2025 return -EINVAL; 2026 2027 buf = (struct ice_buf_hdr *)&bld->buf; 2028 2029 /* already an active section, can't increase table size */ 2030 section_count = le16_to_cpu(buf->section_count); 2031 if (section_count > 0) 2032 return -EIO; 2033 2034 if (bld->reserved_section_table_entries + count > ICE_MAX_S_COUNT) 2035 return -EIO; 2036 bld->reserved_section_table_entries += count; 2037 2038 data_end = le16_to_cpu(buf->data_end) + 2039 flex_array_size(buf, section_entry, count); 2040 buf->data_end = cpu_to_le16(data_end); 2041 2042 return 0; 2043 } 2044 2045 /** 2046 * ice_pkg_buf_alloc_section 2047 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc()) 2048 * @type: the section type value 2049 * @size: the size of the section to reserve (in bytes) 2050 * 2051 * Reserves memory in the buffer for a section's content and updates the 2052 * buffers' status accordingly. This routine returns a pointer to the first 2053 * byte of the section start within the buffer, which is used to fill in the 2054 * section contents. 2055 * Note: all package contents must be in Little Endian form. 2056 */ 2057 static void * 2058 ice_pkg_buf_alloc_section(struct ice_buf_build *bld, u32 type, u16 size) 2059 { 2060 struct ice_buf_hdr *buf; 2061 u16 sect_count; 2062 u16 data_end; 2063 2064 if (!bld || !type || !size) 2065 return NULL; 2066 2067 buf = (struct ice_buf_hdr *)&bld->buf; 2068 2069 /* check for enough space left in buffer */ 2070 data_end = le16_to_cpu(buf->data_end); 2071 2072 /* section start must align on 4 byte boundary */ 2073 data_end = ALIGN(data_end, 4); 2074 2075 if ((data_end + size) > ICE_MAX_S_DATA_END) 2076 return NULL; 2077 2078 /* check for more available section table entries */ 2079 sect_count = le16_to_cpu(buf->section_count); 2080 if (sect_count < bld->reserved_section_table_entries) { 2081 void *section_ptr = ((u8 *)buf) + data_end; 2082 2083 buf->section_entry[sect_count].offset = cpu_to_le16(data_end); 2084 buf->section_entry[sect_count].size = cpu_to_le16(size); 2085 buf->section_entry[sect_count].type = cpu_to_le32(type); 2086 2087 data_end += size; 2088 buf->data_end = cpu_to_le16(data_end); 2089 2090 buf->section_count = cpu_to_le16(sect_count + 1); 2091 return section_ptr; 2092 } 2093 2094 /* no free section table entries */ 2095 return NULL; 2096 } 2097 2098 /** 2099 * ice_pkg_buf_alloc_single_section 2100 * @hw: pointer to the HW structure 2101 * @type: the section type value 2102 * @size: the size of the section to reserve (in bytes) 2103 * @section: returns pointer to the section 2104 * 2105 * Allocates a package buffer with a single section. 2106 * Note: all package contents must be in Little Endian form. 2107 */ 2108 struct ice_buf_build * 2109 ice_pkg_buf_alloc_single_section(struct ice_hw *hw, u32 type, u16 size, 2110 void **section) 2111 { 2112 struct ice_buf_build *buf; 2113 2114 if (!section) 2115 return NULL; 2116 2117 buf = ice_pkg_buf_alloc(hw); 2118 if (!buf) 2119 return NULL; 2120 2121 if (ice_pkg_buf_reserve_section(buf, 1)) 2122 goto ice_pkg_buf_alloc_single_section_err; 2123 2124 *section = ice_pkg_buf_alloc_section(buf, type, size); 2125 if (!*section) 2126 goto ice_pkg_buf_alloc_single_section_err; 2127 2128 return buf; 2129 2130 ice_pkg_buf_alloc_single_section_err: 2131 ice_pkg_buf_free(hw, buf); 2132 return NULL; 2133 } 2134 2135 /** 2136 * ice_pkg_buf_get_active_sections 2137 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc()) 2138 * 2139 * Returns the number of active sections. Before using the package buffer 2140 * in an update package command, the caller should make sure that there is at 2141 * least one active section - otherwise, the buffer is not legal and should 2142 * not be used. 2143 * Note: all package contents must be in Little Endian form. 2144 */ 2145 static u16 ice_pkg_buf_get_active_sections(struct ice_buf_build *bld) 2146 { 2147 struct ice_buf_hdr *buf; 2148 2149 if (!bld) 2150 return 0; 2151 2152 buf = (struct ice_buf_hdr *)&bld->buf; 2153 return le16_to_cpu(buf->section_count); 2154 } 2155 2156 /** 2157 * ice_pkg_buf 2158 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc()) 2159 * 2160 * Return a pointer to the buffer's header 2161 */ 2162 struct ice_buf *ice_pkg_buf(struct ice_buf_build *bld) 2163 { 2164 if (!bld) 2165 return NULL; 2166 2167 return &bld->buf; 2168 } 2169 2170 /** 2171 * ice_get_open_tunnel_port - retrieve an open tunnel port 2172 * @hw: pointer to the HW structure 2173 * @port: returns open port 2174 * @type: type of tunnel, can be TNL_LAST if it doesn't matter 2175 */ 2176 bool 2177 ice_get_open_tunnel_port(struct ice_hw *hw, u16 *port, 2178 enum ice_tunnel_type type) 2179 { 2180 bool res = false; 2181 u16 i; 2182 2183 mutex_lock(&hw->tnl_lock); 2184 2185 for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++) 2186 if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].port && 2187 (type == TNL_LAST || type == hw->tnl.tbl[i].type)) { 2188 *port = hw->tnl.tbl[i].port; 2189 res = true; 2190 break; 2191 } 2192 2193 mutex_unlock(&hw->tnl_lock); 2194 2195 return res; 2196 } 2197 2198 /** 2199 * ice_upd_dvm_boost_entry 2200 * @hw: pointer to the HW structure 2201 * @entry: pointer to double vlan boost entry info 2202 */ 2203 static int 2204 ice_upd_dvm_boost_entry(struct ice_hw *hw, struct ice_dvm_entry *entry) 2205 { 2206 struct ice_boost_tcam_section *sect_rx, *sect_tx; 2207 int status = -ENOSPC; 2208 struct ice_buf_build *bld; 2209 u8 val, dc, nm; 2210 2211 bld = ice_pkg_buf_alloc(hw); 2212 if (!bld) 2213 return -ENOMEM; 2214 2215 /* allocate 2 sections, one for Rx parser, one for Tx parser */ 2216 if (ice_pkg_buf_reserve_section(bld, 2)) 2217 goto ice_upd_dvm_boost_entry_err; 2218 2219 sect_rx = ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM, 2220 struct_size(sect_rx, tcam, 1)); 2221 if (!sect_rx) 2222 goto ice_upd_dvm_boost_entry_err; 2223 sect_rx->count = cpu_to_le16(1); 2224 2225 sect_tx = ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM, 2226 struct_size(sect_tx, tcam, 1)); 2227 if (!sect_tx) 2228 goto ice_upd_dvm_boost_entry_err; 2229 sect_tx->count = cpu_to_le16(1); 2230 2231 /* copy original boost entry to update package buffer */ 2232 memcpy(sect_rx->tcam, entry->boost_entry, sizeof(*sect_rx->tcam)); 2233 2234 /* re-write the don't care and never match bits accordingly */ 2235 if (entry->enable) { 2236 /* all bits are don't care */ 2237 val = 0x00; 2238 dc = 0xFF; 2239 nm = 0x00; 2240 } else { 2241 /* disable, one never match bit, the rest are don't care */ 2242 val = 0x00; 2243 dc = 0xF7; 2244 nm = 0x08; 2245 } 2246 2247 ice_set_key((u8 *)§_rx->tcam[0].key, sizeof(sect_rx->tcam[0].key), 2248 &val, NULL, &dc, &nm, 0, sizeof(u8)); 2249 2250 /* exact copy of entry to Tx section entry */ 2251 memcpy(sect_tx->tcam, sect_rx->tcam, sizeof(*sect_tx->tcam)); 2252 2253 status = ice_update_pkg_no_lock(hw, ice_pkg_buf(bld), 1); 2254 2255 ice_upd_dvm_boost_entry_err: 2256 ice_pkg_buf_free(hw, bld); 2257 2258 return status; 2259 } 2260 2261 /** 2262 * ice_set_dvm_boost_entries 2263 * @hw: pointer to the HW structure 2264 * 2265 * Enable double vlan by updating the appropriate boost tcam entries. 2266 */ 2267 int ice_set_dvm_boost_entries(struct ice_hw *hw) 2268 { 2269 int status; 2270 u16 i; 2271 2272 for (i = 0; i < hw->dvm_upd.count; i++) { 2273 status = ice_upd_dvm_boost_entry(hw, &hw->dvm_upd.tbl[i]); 2274 if (status) 2275 return status; 2276 } 2277 2278 return 0; 2279 } 2280 2281 /** 2282 * ice_tunnel_idx_to_entry - convert linear index to the sparse one 2283 * @hw: pointer to the HW structure 2284 * @type: type of tunnel 2285 * @idx: linear index 2286 * 2287 * Stack assumes we have 2 linear tables with indexes [0, count_valid), 2288 * but really the port table may be sprase, and types are mixed, so convert 2289 * the stack index into the device index. 2290 */ 2291 static u16 ice_tunnel_idx_to_entry(struct ice_hw *hw, enum ice_tunnel_type type, 2292 u16 idx) 2293 { 2294 u16 i; 2295 2296 for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++) 2297 if (hw->tnl.tbl[i].valid && 2298 hw->tnl.tbl[i].type == type && 2299 idx-- == 0) 2300 return i; 2301 2302 WARN_ON_ONCE(1); 2303 return 0; 2304 } 2305 2306 /** 2307 * ice_create_tunnel 2308 * @hw: pointer to the HW structure 2309 * @index: device table entry 2310 * @type: type of tunnel 2311 * @port: port of tunnel to create 2312 * 2313 * Create a tunnel by updating the parse graph in the parser. We do that by 2314 * creating a package buffer with the tunnel info and issuing an update package 2315 * command. 2316 */ 2317 static int 2318 ice_create_tunnel(struct ice_hw *hw, u16 index, 2319 enum ice_tunnel_type type, u16 port) 2320 { 2321 struct ice_boost_tcam_section *sect_rx, *sect_tx; 2322 struct ice_buf_build *bld; 2323 int status = -ENOSPC; 2324 2325 mutex_lock(&hw->tnl_lock); 2326 2327 bld = ice_pkg_buf_alloc(hw); 2328 if (!bld) { 2329 status = -ENOMEM; 2330 goto ice_create_tunnel_end; 2331 } 2332 2333 /* allocate 2 sections, one for Rx parser, one for Tx parser */ 2334 if (ice_pkg_buf_reserve_section(bld, 2)) 2335 goto ice_create_tunnel_err; 2336 2337 sect_rx = ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM, 2338 struct_size(sect_rx, tcam, 1)); 2339 if (!sect_rx) 2340 goto ice_create_tunnel_err; 2341 sect_rx->count = cpu_to_le16(1); 2342 2343 sect_tx = ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM, 2344 struct_size(sect_tx, tcam, 1)); 2345 if (!sect_tx) 2346 goto ice_create_tunnel_err; 2347 sect_tx->count = cpu_to_le16(1); 2348 2349 /* copy original boost entry to update package buffer */ 2350 memcpy(sect_rx->tcam, hw->tnl.tbl[index].boost_entry, 2351 sizeof(*sect_rx->tcam)); 2352 2353 /* over-write the never-match dest port key bits with the encoded port 2354 * bits 2355 */ 2356 ice_set_key((u8 *)§_rx->tcam[0].key, sizeof(sect_rx->tcam[0].key), 2357 (u8 *)&port, NULL, NULL, NULL, 2358 (u16)offsetof(struct ice_boost_key_value, hv_dst_port_key), 2359 sizeof(sect_rx->tcam[0].key.key.hv_dst_port_key)); 2360 2361 /* exact copy of entry to Tx section entry */ 2362 memcpy(sect_tx->tcam, sect_rx->tcam, sizeof(*sect_tx->tcam)); 2363 2364 status = ice_update_pkg(hw, ice_pkg_buf(bld), 1); 2365 if (!status) 2366 hw->tnl.tbl[index].port = port; 2367 2368 ice_create_tunnel_err: 2369 ice_pkg_buf_free(hw, bld); 2370 2371 ice_create_tunnel_end: 2372 mutex_unlock(&hw->tnl_lock); 2373 2374 return status; 2375 } 2376 2377 /** 2378 * ice_destroy_tunnel 2379 * @hw: pointer to the HW structure 2380 * @index: device table entry 2381 * @type: type of tunnel 2382 * @port: port of tunnel to destroy (ignored if the all parameter is true) 2383 * 2384 * Destroys a tunnel or all tunnels by creating an update package buffer 2385 * targeting the specific updates requested and then performing an update 2386 * package. 2387 */ 2388 static int 2389 ice_destroy_tunnel(struct ice_hw *hw, u16 index, enum ice_tunnel_type type, 2390 u16 port) 2391 { 2392 struct ice_boost_tcam_section *sect_rx, *sect_tx; 2393 struct ice_buf_build *bld; 2394 int status = -ENOSPC; 2395 2396 mutex_lock(&hw->tnl_lock); 2397 2398 if (WARN_ON(!hw->tnl.tbl[index].valid || 2399 hw->tnl.tbl[index].type != type || 2400 hw->tnl.tbl[index].port != port)) { 2401 status = -EIO; 2402 goto ice_destroy_tunnel_end; 2403 } 2404 2405 bld = ice_pkg_buf_alloc(hw); 2406 if (!bld) { 2407 status = -ENOMEM; 2408 goto ice_destroy_tunnel_end; 2409 } 2410 2411 /* allocate 2 sections, one for Rx parser, one for Tx parser */ 2412 if (ice_pkg_buf_reserve_section(bld, 2)) 2413 goto ice_destroy_tunnel_err; 2414 2415 sect_rx = ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM, 2416 struct_size(sect_rx, tcam, 1)); 2417 if (!sect_rx) 2418 goto ice_destroy_tunnel_err; 2419 sect_rx->count = cpu_to_le16(1); 2420 2421 sect_tx = ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM, 2422 struct_size(sect_tx, tcam, 1)); 2423 if (!sect_tx) 2424 goto ice_destroy_tunnel_err; 2425 sect_tx->count = cpu_to_le16(1); 2426 2427 /* copy original boost entry to update package buffer, one copy to Rx 2428 * section, another copy to the Tx section 2429 */ 2430 memcpy(sect_rx->tcam, hw->tnl.tbl[index].boost_entry, 2431 sizeof(*sect_rx->tcam)); 2432 memcpy(sect_tx->tcam, hw->tnl.tbl[index].boost_entry, 2433 sizeof(*sect_tx->tcam)); 2434 2435 status = ice_update_pkg(hw, ice_pkg_buf(bld), 1); 2436 if (!status) 2437 hw->tnl.tbl[index].port = 0; 2438 2439 ice_destroy_tunnel_err: 2440 ice_pkg_buf_free(hw, bld); 2441 2442 ice_destroy_tunnel_end: 2443 mutex_unlock(&hw->tnl_lock); 2444 2445 return status; 2446 } 2447 2448 int ice_udp_tunnel_set_port(struct net_device *netdev, unsigned int table, 2449 unsigned int idx, struct udp_tunnel_info *ti) 2450 { 2451 struct ice_netdev_priv *np = netdev_priv(netdev); 2452 struct ice_vsi *vsi = np->vsi; 2453 struct ice_pf *pf = vsi->back; 2454 enum ice_tunnel_type tnl_type; 2455 int status; 2456 u16 index; 2457 2458 tnl_type = ti->type == UDP_TUNNEL_TYPE_VXLAN ? TNL_VXLAN : TNL_GENEVE; 2459 index = ice_tunnel_idx_to_entry(&pf->hw, tnl_type, idx); 2460 2461 status = ice_create_tunnel(&pf->hw, index, tnl_type, ntohs(ti->port)); 2462 if (status) { 2463 netdev_err(netdev, "Error adding UDP tunnel - %d\n", 2464 status); 2465 return -EIO; 2466 } 2467 2468 udp_tunnel_nic_set_port_priv(netdev, table, idx, index); 2469 return 0; 2470 } 2471 2472 int ice_udp_tunnel_unset_port(struct net_device *netdev, unsigned int table, 2473 unsigned int idx, struct udp_tunnel_info *ti) 2474 { 2475 struct ice_netdev_priv *np = netdev_priv(netdev); 2476 struct ice_vsi *vsi = np->vsi; 2477 struct ice_pf *pf = vsi->back; 2478 enum ice_tunnel_type tnl_type; 2479 int status; 2480 2481 tnl_type = ti->type == UDP_TUNNEL_TYPE_VXLAN ? TNL_VXLAN : TNL_GENEVE; 2482 2483 status = ice_destroy_tunnel(&pf->hw, ti->hw_priv, tnl_type, 2484 ntohs(ti->port)); 2485 if (status) { 2486 netdev_err(netdev, "Error removing UDP tunnel - %d\n", 2487 status); 2488 return -EIO; 2489 } 2490 2491 return 0; 2492 } 2493 2494 /** 2495 * ice_find_prot_off - find prot ID and offset pair, based on prof and FV index 2496 * @hw: pointer to the hardware structure 2497 * @blk: hardware block 2498 * @prof: profile ID 2499 * @fv_idx: field vector word index 2500 * @prot: variable to receive the protocol ID 2501 * @off: variable to receive the protocol offset 2502 */ 2503 int 2504 ice_find_prot_off(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 fv_idx, 2505 u8 *prot, u16 *off) 2506 { 2507 struct ice_fv_word *fv_ext; 2508 2509 if (prof >= hw->blk[blk].es.count) 2510 return -EINVAL; 2511 2512 if (fv_idx >= hw->blk[blk].es.fvw) 2513 return -EINVAL; 2514 2515 fv_ext = hw->blk[blk].es.t + (prof * hw->blk[blk].es.fvw); 2516 2517 *prot = fv_ext[fv_idx].prot_id; 2518 *off = fv_ext[fv_idx].off; 2519 2520 return 0; 2521 } 2522 2523 /* PTG Management */ 2524 2525 /** 2526 * ice_ptg_find_ptype - Search for packet type group using packet type (ptype) 2527 * @hw: pointer to the hardware structure 2528 * @blk: HW block 2529 * @ptype: the ptype to search for 2530 * @ptg: pointer to variable that receives the PTG 2531 * 2532 * This function will search the PTGs for a particular ptype, returning the 2533 * PTG ID that contains it through the PTG parameter, with the value of 2534 * ICE_DEFAULT_PTG (0) meaning it is part the default PTG. 2535 */ 2536 static int 2537 ice_ptg_find_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 *ptg) 2538 { 2539 if (ptype >= ICE_XLT1_CNT || !ptg) 2540 return -EINVAL; 2541 2542 *ptg = hw->blk[blk].xlt1.ptypes[ptype].ptg; 2543 return 0; 2544 } 2545 2546 /** 2547 * ice_ptg_alloc_val - Allocates a new packet type group ID by value 2548 * @hw: pointer to the hardware structure 2549 * @blk: HW block 2550 * @ptg: the PTG to allocate 2551 * 2552 * This function allocates a given packet type group ID specified by the PTG 2553 * parameter. 2554 */ 2555 static void ice_ptg_alloc_val(struct ice_hw *hw, enum ice_block blk, u8 ptg) 2556 { 2557 hw->blk[blk].xlt1.ptg_tbl[ptg].in_use = true; 2558 } 2559 2560 /** 2561 * ice_ptg_remove_ptype - Removes ptype from a particular packet type group 2562 * @hw: pointer to the hardware structure 2563 * @blk: HW block 2564 * @ptype: the ptype to remove 2565 * @ptg: the PTG to remove the ptype from 2566 * 2567 * This function will remove the ptype from the specific PTG, and move it to 2568 * the default PTG (ICE_DEFAULT_PTG). 2569 */ 2570 static int 2571 ice_ptg_remove_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 ptg) 2572 { 2573 struct ice_ptg_ptype **ch; 2574 struct ice_ptg_ptype *p; 2575 2576 if (ptype > ICE_XLT1_CNT - 1) 2577 return -EINVAL; 2578 2579 if (!hw->blk[blk].xlt1.ptg_tbl[ptg].in_use) 2580 return -ENOENT; 2581 2582 /* Should not happen if .in_use is set, bad config */ 2583 if (!hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype) 2584 return -EIO; 2585 2586 /* find the ptype within this PTG, and bypass the link over it */ 2587 p = hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype; 2588 ch = &hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype; 2589 while (p) { 2590 if (ptype == (p - hw->blk[blk].xlt1.ptypes)) { 2591 *ch = p->next_ptype; 2592 break; 2593 } 2594 2595 ch = &p->next_ptype; 2596 p = p->next_ptype; 2597 } 2598 2599 hw->blk[blk].xlt1.ptypes[ptype].ptg = ICE_DEFAULT_PTG; 2600 hw->blk[blk].xlt1.ptypes[ptype].next_ptype = NULL; 2601 2602 return 0; 2603 } 2604 2605 /** 2606 * ice_ptg_add_mv_ptype - Adds/moves ptype to a particular packet type group 2607 * @hw: pointer to the hardware structure 2608 * @blk: HW block 2609 * @ptype: the ptype to add or move 2610 * @ptg: the PTG to add or move the ptype to 2611 * 2612 * This function will either add or move a ptype to a particular PTG depending 2613 * on if the ptype is already part of another group. Note that using a 2614 * a destination PTG ID of ICE_DEFAULT_PTG (0) will move the ptype to the 2615 * default PTG. 2616 */ 2617 static int 2618 ice_ptg_add_mv_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 ptg) 2619 { 2620 u8 original_ptg; 2621 int status; 2622 2623 if (ptype > ICE_XLT1_CNT - 1) 2624 return -EINVAL; 2625 2626 if (!hw->blk[blk].xlt1.ptg_tbl[ptg].in_use && ptg != ICE_DEFAULT_PTG) 2627 return -ENOENT; 2628 2629 status = ice_ptg_find_ptype(hw, blk, ptype, &original_ptg); 2630 if (status) 2631 return status; 2632 2633 /* Is ptype already in the correct PTG? */ 2634 if (original_ptg == ptg) 2635 return 0; 2636 2637 /* Remove from original PTG and move back to the default PTG */ 2638 if (original_ptg != ICE_DEFAULT_PTG) 2639 ice_ptg_remove_ptype(hw, blk, ptype, original_ptg); 2640 2641 /* Moving to default PTG? Then we're done with this request */ 2642 if (ptg == ICE_DEFAULT_PTG) 2643 return 0; 2644 2645 /* Add ptype to PTG at beginning of list */ 2646 hw->blk[blk].xlt1.ptypes[ptype].next_ptype = 2647 hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype; 2648 hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype = 2649 &hw->blk[blk].xlt1.ptypes[ptype]; 2650 2651 hw->blk[blk].xlt1.ptypes[ptype].ptg = ptg; 2652 hw->blk[blk].xlt1.t[ptype] = ptg; 2653 2654 return 0; 2655 } 2656 2657 /* Block / table size info */ 2658 struct ice_blk_size_details { 2659 u16 xlt1; /* # XLT1 entries */ 2660 u16 xlt2; /* # XLT2 entries */ 2661 u16 prof_tcam; /* # profile ID TCAM entries */ 2662 u16 prof_id; /* # profile IDs */ 2663 u8 prof_cdid_bits; /* # CDID one-hot bits used in key */ 2664 u16 prof_redir; /* # profile redirection entries */ 2665 u16 es; /* # extraction sequence entries */ 2666 u16 fvw; /* # field vector words */ 2667 u8 overwrite; /* overwrite existing entries allowed */ 2668 u8 reverse; /* reverse FV order */ 2669 }; 2670 2671 static const struct ice_blk_size_details blk_sizes[ICE_BLK_COUNT] = { 2672 /** 2673 * Table Definitions 2674 * XLT1 - Number of entries in XLT1 table 2675 * XLT2 - Number of entries in XLT2 table 2676 * TCAM - Number of entries Profile ID TCAM table 2677 * CDID - Control Domain ID of the hardware block 2678 * PRED - Number of entries in the Profile Redirection Table 2679 * FV - Number of entries in the Field Vector 2680 * FVW - Width (in WORDs) of the Field Vector 2681 * OVR - Overwrite existing table entries 2682 * REV - Reverse FV 2683 */ 2684 /* XLT1 , XLT2 ,TCAM, PID,CDID,PRED, FV, FVW */ 2685 /* Overwrite , Reverse FV */ 2686 /* SW */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 512, 256, 0, 256, 256, 48, 2687 false, false }, 2688 /* ACL */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 512, 128, 0, 128, 128, 32, 2689 false, false }, 2690 /* FD */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 512, 128, 0, 128, 128, 24, 2691 false, true }, 2692 /* RSS */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 512, 128, 0, 128, 128, 24, 2693 true, true }, 2694 /* PE */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 64, 32, 0, 32, 32, 24, 2695 false, false }, 2696 }; 2697 2698 enum ice_sid_all { 2699 ICE_SID_XLT1_OFF = 0, 2700 ICE_SID_XLT2_OFF, 2701 ICE_SID_PR_OFF, 2702 ICE_SID_PR_REDIR_OFF, 2703 ICE_SID_ES_OFF, 2704 ICE_SID_OFF_COUNT, 2705 }; 2706 2707 /* Characteristic handling */ 2708 2709 /** 2710 * ice_match_prop_lst - determine if properties of two lists match 2711 * @list1: first properties list 2712 * @list2: second properties list 2713 * 2714 * Count, cookies and the order must match in order to be considered equivalent. 2715 */ 2716 static bool 2717 ice_match_prop_lst(struct list_head *list1, struct list_head *list2) 2718 { 2719 struct ice_vsig_prof *tmp1; 2720 struct ice_vsig_prof *tmp2; 2721 u16 chk_count = 0; 2722 u16 count = 0; 2723 2724 /* compare counts */ 2725 list_for_each_entry(tmp1, list1, list) 2726 count++; 2727 list_for_each_entry(tmp2, list2, list) 2728 chk_count++; 2729 /* cppcheck-suppress knownConditionTrueFalse */ 2730 if (!count || count != chk_count) 2731 return false; 2732 2733 tmp1 = list_first_entry(list1, struct ice_vsig_prof, list); 2734 tmp2 = list_first_entry(list2, struct ice_vsig_prof, list); 2735 2736 /* profile cookies must compare, and in the exact same order to take 2737 * into account priority 2738 */ 2739 while (count--) { 2740 if (tmp2->profile_cookie != tmp1->profile_cookie) 2741 return false; 2742 2743 tmp1 = list_next_entry(tmp1, list); 2744 tmp2 = list_next_entry(tmp2, list); 2745 } 2746 2747 return true; 2748 } 2749 2750 /* VSIG Management */ 2751 2752 /** 2753 * ice_vsig_find_vsi - find a VSIG that contains a specified VSI 2754 * @hw: pointer to the hardware structure 2755 * @blk: HW block 2756 * @vsi: VSI of interest 2757 * @vsig: pointer to receive the VSI group 2758 * 2759 * This function will lookup the VSI entry in the XLT2 list and return 2760 * the VSI group its associated with. 2761 */ 2762 static int 2763 ice_vsig_find_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 *vsig) 2764 { 2765 if (!vsig || vsi >= ICE_MAX_VSI) 2766 return -EINVAL; 2767 2768 /* As long as there's a default or valid VSIG associated with the input 2769 * VSI, the functions returns a success. Any handling of VSIG will be 2770 * done by the following add, update or remove functions. 2771 */ 2772 *vsig = hw->blk[blk].xlt2.vsis[vsi].vsig; 2773 2774 return 0; 2775 } 2776 2777 /** 2778 * ice_vsig_alloc_val - allocate a new VSIG by value 2779 * @hw: pointer to the hardware structure 2780 * @blk: HW block 2781 * @vsig: the VSIG to allocate 2782 * 2783 * This function will allocate a given VSIG specified by the VSIG parameter. 2784 */ 2785 static u16 ice_vsig_alloc_val(struct ice_hw *hw, enum ice_block blk, u16 vsig) 2786 { 2787 u16 idx = vsig & ICE_VSIG_IDX_M; 2788 2789 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) { 2790 INIT_LIST_HEAD(&hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst); 2791 hw->blk[blk].xlt2.vsig_tbl[idx].in_use = true; 2792 } 2793 2794 return ICE_VSIG_VALUE(idx, hw->pf_id); 2795 } 2796 2797 /** 2798 * ice_vsig_alloc - Finds a free entry and allocates a new VSIG 2799 * @hw: pointer to the hardware structure 2800 * @blk: HW block 2801 * 2802 * This function will iterate through the VSIG list and mark the first 2803 * unused entry for the new VSIG entry as used and return that value. 2804 */ 2805 static u16 ice_vsig_alloc(struct ice_hw *hw, enum ice_block blk) 2806 { 2807 u16 i; 2808 2809 for (i = 1; i < ICE_MAX_VSIGS; i++) 2810 if (!hw->blk[blk].xlt2.vsig_tbl[i].in_use) 2811 return ice_vsig_alloc_val(hw, blk, i); 2812 2813 return ICE_DEFAULT_VSIG; 2814 } 2815 2816 /** 2817 * ice_find_dup_props_vsig - find VSI group with a specified set of properties 2818 * @hw: pointer to the hardware structure 2819 * @blk: HW block 2820 * @chs: characteristic list 2821 * @vsig: returns the VSIG with the matching profiles, if found 2822 * 2823 * Each VSIG is associated with a characteristic set; i.e. all VSIs under 2824 * a group have the same characteristic set. To check if there exists a VSIG 2825 * which has the same characteristics as the input characteristics; this 2826 * function will iterate through the XLT2 list and return the VSIG that has a 2827 * matching configuration. In order to make sure that priorities are accounted 2828 * for, the list must match exactly, including the order in which the 2829 * characteristics are listed. 2830 */ 2831 static int 2832 ice_find_dup_props_vsig(struct ice_hw *hw, enum ice_block blk, 2833 struct list_head *chs, u16 *vsig) 2834 { 2835 struct ice_xlt2 *xlt2 = &hw->blk[blk].xlt2; 2836 u16 i; 2837 2838 for (i = 0; i < xlt2->count; i++) 2839 if (xlt2->vsig_tbl[i].in_use && 2840 ice_match_prop_lst(chs, &xlt2->vsig_tbl[i].prop_lst)) { 2841 *vsig = ICE_VSIG_VALUE(i, hw->pf_id); 2842 return 0; 2843 } 2844 2845 return -ENOENT; 2846 } 2847 2848 /** 2849 * ice_vsig_free - free VSI group 2850 * @hw: pointer to the hardware structure 2851 * @blk: HW block 2852 * @vsig: VSIG to remove 2853 * 2854 * The function will remove all VSIs associated with the input VSIG and move 2855 * them to the DEFAULT_VSIG and mark the VSIG available. 2856 */ 2857 static int ice_vsig_free(struct ice_hw *hw, enum ice_block blk, u16 vsig) 2858 { 2859 struct ice_vsig_prof *dtmp, *del; 2860 struct ice_vsig_vsi *vsi_cur; 2861 u16 idx; 2862 2863 idx = vsig & ICE_VSIG_IDX_M; 2864 if (idx >= ICE_MAX_VSIGS) 2865 return -EINVAL; 2866 2867 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) 2868 return -ENOENT; 2869 2870 hw->blk[blk].xlt2.vsig_tbl[idx].in_use = false; 2871 2872 vsi_cur = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 2873 /* If the VSIG has at least 1 VSI then iterate through the 2874 * list and remove the VSIs before deleting the group. 2875 */ 2876 if (vsi_cur) { 2877 /* remove all vsis associated with this VSIG XLT2 entry */ 2878 do { 2879 struct ice_vsig_vsi *tmp = vsi_cur->next_vsi; 2880 2881 vsi_cur->vsig = ICE_DEFAULT_VSIG; 2882 vsi_cur->changed = 1; 2883 vsi_cur->next_vsi = NULL; 2884 vsi_cur = tmp; 2885 } while (vsi_cur); 2886 2887 /* NULL terminate head of VSI list */ 2888 hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi = NULL; 2889 } 2890 2891 /* free characteristic list */ 2892 list_for_each_entry_safe(del, dtmp, 2893 &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 2894 list) { 2895 list_del(&del->list); 2896 devm_kfree(ice_hw_to_dev(hw), del); 2897 } 2898 2899 /* if VSIG characteristic list was cleared for reset 2900 * re-initialize the list head 2901 */ 2902 INIT_LIST_HEAD(&hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst); 2903 2904 return 0; 2905 } 2906 2907 /** 2908 * ice_vsig_remove_vsi - remove VSI from VSIG 2909 * @hw: pointer to the hardware structure 2910 * @blk: HW block 2911 * @vsi: VSI to remove 2912 * @vsig: VSI group to remove from 2913 * 2914 * The function will remove the input VSI from its VSI group and move it 2915 * to the DEFAULT_VSIG. 2916 */ 2917 static int 2918 ice_vsig_remove_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig) 2919 { 2920 struct ice_vsig_vsi **vsi_head, *vsi_cur, *vsi_tgt; 2921 u16 idx; 2922 2923 idx = vsig & ICE_VSIG_IDX_M; 2924 2925 if (vsi >= ICE_MAX_VSI || idx >= ICE_MAX_VSIGS) 2926 return -EINVAL; 2927 2928 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) 2929 return -ENOENT; 2930 2931 /* entry already in default VSIG, don't have to remove */ 2932 if (idx == ICE_DEFAULT_VSIG) 2933 return 0; 2934 2935 vsi_head = &hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 2936 if (!(*vsi_head)) 2937 return -EIO; 2938 2939 vsi_tgt = &hw->blk[blk].xlt2.vsis[vsi]; 2940 vsi_cur = (*vsi_head); 2941 2942 /* iterate the VSI list, skip over the entry to be removed */ 2943 while (vsi_cur) { 2944 if (vsi_tgt == vsi_cur) { 2945 (*vsi_head) = vsi_cur->next_vsi; 2946 break; 2947 } 2948 vsi_head = &vsi_cur->next_vsi; 2949 vsi_cur = vsi_cur->next_vsi; 2950 } 2951 2952 /* verify if VSI was removed from group list */ 2953 if (!vsi_cur) 2954 return -ENOENT; 2955 2956 vsi_cur->vsig = ICE_DEFAULT_VSIG; 2957 vsi_cur->changed = 1; 2958 vsi_cur->next_vsi = NULL; 2959 2960 return 0; 2961 } 2962 2963 /** 2964 * ice_vsig_add_mv_vsi - add or move a VSI to a VSI group 2965 * @hw: pointer to the hardware structure 2966 * @blk: HW block 2967 * @vsi: VSI to move 2968 * @vsig: destination VSI group 2969 * 2970 * This function will move or add the input VSI to the target VSIG. 2971 * The function will find the original VSIG the VSI belongs to and 2972 * move the entry to the DEFAULT_VSIG, update the original VSIG and 2973 * then move entry to the new VSIG. 2974 */ 2975 static int 2976 ice_vsig_add_mv_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig) 2977 { 2978 struct ice_vsig_vsi *tmp; 2979 u16 orig_vsig, idx; 2980 int status; 2981 2982 idx = vsig & ICE_VSIG_IDX_M; 2983 2984 if (vsi >= ICE_MAX_VSI || idx >= ICE_MAX_VSIGS) 2985 return -EINVAL; 2986 2987 /* if VSIG not in use and VSIG is not default type this VSIG 2988 * doesn't exist. 2989 */ 2990 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use && 2991 vsig != ICE_DEFAULT_VSIG) 2992 return -ENOENT; 2993 2994 status = ice_vsig_find_vsi(hw, blk, vsi, &orig_vsig); 2995 if (status) 2996 return status; 2997 2998 /* no update required if vsigs match */ 2999 if (orig_vsig == vsig) 3000 return 0; 3001 3002 if (orig_vsig != ICE_DEFAULT_VSIG) { 3003 /* remove entry from orig_vsig and add to default VSIG */ 3004 status = ice_vsig_remove_vsi(hw, blk, vsi, orig_vsig); 3005 if (status) 3006 return status; 3007 } 3008 3009 if (idx == ICE_DEFAULT_VSIG) 3010 return 0; 3011 3012 /* Create VSI entry and add VSIG and prop_mask values */ 3013 hw->blk[blk].xlt2.vsis[vsi].vsig = vsig; 3014 hw->blk[blk].xlt2.vsis[vsi].changed = 1; 3015 3016 /* Add new entry to the head of the VSIG list */ 3017 tmp = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 3018 hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi = 3019 &hw->blk[blk].xlt2.vsis[vsi]; 3020 hw->blk[blk].xlt2.vsis[vsi].next_vsi = tmp; 3021 hw->blk[blk].xlt2.t[vsi] = vsig; 3022 3023 return 0; 3024 } 3025 3026 /** 3027 * ice_prof_has_mask_idx - determine if profile index masking is identical 3028 * @hw: pointer to the hardware structure 3029 * @blk: HW block 3030 * @prof: profile to check 3031 * @idx: profile index to check 3032 * @mask: mask to match 3033 */ 3034 static bool 3035 ice_prof_has_mask_idx(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 idx, 3036 u16 mask) 3037 { 3038 bool expect_no_mask = false; 3039 bool found = false; 3040 bool match = false; 3041 u16 i; 3042 3043 /* If mask is 0x0000 or 0xffff, then there is no masking */ 3044 if (mask == 0 || mask == 0xffff) 3045 expect_no_mask = true; 3046 3047 /* Scan the enabled masks on this profile, for the specified idx */ 3048 for (i = hw->blk[blk].masks.first; i < hw->blk[blk].masks.first + 3049 hw->blk[blk].masks.count; i++) 3050 if (hw->blk[blk].es.mask_ena[prof] & BIT(i)) 3051 if (hw->blk[blk].masks.masks[i].in_use && 3052 hw->blk[blk].masks.masks[i].idx == idx) { 3053 found = true; 3054 if (hw->blk[blk].masks.masks[i].mask == mask) 3055 match = true; 3056 break; 3057 } 3058 3059 if (expect_no_mask) { 3060 if (found) 3061 return false; 3062 } else { 3063 if (!match) 3064 return false; 3065 } 3066 3067 return true; 3068 } 3069 3070 /** 3071 * ice_prof_has_mask - determine if profile masking is identical 3072 * @hw: pointer to the hardware structure 3073 * @blk: HW block 3074 * @prof: profile to check 3075 * @masks: masks to match 3076 */ 3077 static bool 3078 ice_prof_has_mask(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 *masks) 3079 { 3080 u16 i; 3081 3082 /* es->mask_ena[prof] will have the mask */ 3083 for (i = 0; i < hw->blk[blk].es.fvw; i++) 3084 if (!ice_prof_has_mask_idx(hw, blk, prof, i, masks[i])) 3085 return false; 3086 3087 return true; 3088 } 3089 3090 /** 3091 * ice_find_prof_id_with_mask - find profile ID for a given field vector 3092 * @hw: pointer to the hardware structure 3093 * @blk: HW block 3094 * @fv: field vector to search for 3095 * @masks: masks for FV 3096 * @prof_id: receives the profile ID 3097 */ 3098 static int 3099 ice_find_prof_id_with_mask(struct ice_hw *hw, enum ice_block blk, 3100 struct ice_fv_word *fv, u16 *masks, u8 *prof_id) 3101 { 3102 struct ice_es *es = &hw->blk[blk].es; 3103 u8 i; 3104 3105 /* For FD, we don't want to re-use a existed profile with the same 3106 * field vector and mask. This will cause rule interference. 3107 */ 3108 if (blk == ICE_BLK_FD) 3109 return -ENOENT; 3110 3111 for (i = 0; i < (u8)es->count; i++) { 3112 u16 off = i * es->fvw; 3113 3114 if (memcmp(&es->t[off], fv, es->fvw * sizeof(*fv))) 3115 continue; 3116 3117 /* check if masks settings are the same for this profile */ 3118 if (masks && !ice_prof_has_mask(hw, blk, i, masks)) 3119 continue; 3120 3121 *prof_id = i; 3122 return 0; 3123 } 3124 3125 return -ENOENT; 3126 } 3127 3128 /** 3129 * ice_prof_id_rsrc_type - get profile ID resource type for a block type 3130 * @blk: the block type 3131 * @rsrc_type: pointer to variable to receive the resource type 3132 */ 3133 static bool ice_prof_id_rsrc_type(enum ice_block blk, u16 *rsrc_type) 3134 { 3135 switch (blk) { 3136 case ICE_BLK_FD: 3137 *rsrc_type = ICE_AQC_RES_TYPE_FD_PROF_BLDR_PROFID; 3138 break; 3139 case ICE_BLK_RSS: 3140 *rsrc_type = ICE_AQC_RES_TYPE_HASH_PROF_BLDR_PROFID; 3141 break; 3142 default: 3143 return false; 3144 } 3145 return true; 3146 } 3147 3148 /** 3149 * ice_tcam_ent_rsrc_type - get TCAM entry resource type for a block type 3150 * @blk: the block type 3151 * @rsrc_type: pointer to variable to receive the resource type 3152 */ 3153 static bool ice_tcam_ent_rsrc_type(enum ice_block blk, u16 *rsrc_type) 3154 { 3155 switch (blk) { 3156 case ICE_BLK_FD: 3157 *rsrc_type = ICE_AQC_RES_TYPE_FD_PROF_BLDR_TCAM; 3158 break; 3159 case ICE_BLK_RSS: 3160 *rsrc_type = ICE_AQC_RES_TYPE_HASH_PROF_BLDR_TCAM; 3161 break; 3162 default: 3163 return false; 3164 } 3165 return true; 3166 } 3167 3168 /** 3169 * ice_alloc_tcam_ent - allocate hardware TCAM entry 3170 * @hw: pointer to the HW struct 3171 * @blk: the block to allocate the TCAM for 3172 * @btm: true to allocate from bottom of table, false to allocate from top 3173 * @tcam_idx: pointer to variable to receive the TCAM entry 3174 * 3175 * This function allocates a new entry in a Profile ID TCAM for a specific 3176 * block. 3177 */ 3178 static int 3179 ice_alloc_tcam_ent(struct ice_hw *hw, enum ice_block blk, bool btm, 3180 u16 *tcam_idx) 3181 { 3182 u16 res_type; 3183 3184 if (!ice_tcam_ent_rsrc_type(blk, &res_type)) 3185 return -EINVAL; 3186 3187 return ice_alloc_hw_res(hw, res_type, 1, btm, tcam_idx); 3188 } 3189 3190 /** 3191 * ice_free_tcam_ent - free hardware TCAM entry 3192 * @hw: pointer to the HW struct 3193 * @blk: the block from which to free the TCAM entry 3194 * @tcam_idx: the TCAM entry to free 3195 * 3196 * This function frees an entry in a Profile ID TCAM for a specific block. 3197 */ 3198 static int 3199 ice_free_tcam_ent(struct ice_hw *hw, enum ice_block blk, u16 tcam_idx) 3200 { 3201 u16 res_type; 3202 3203 if (!ice_tcam_ent_rsrc_type(blk, &res_type)) 3204 return -EINVAL; 3205 3206 return ice_free_hw_res(hw, res_type, 1, &tcam_idx); 3207 } 3208 3209 /** 3210 * ice_alloc_prof_id - allocate profile ID 3211 * @hw: pointer to the HW struct 3212 * @blk: the block to allocate the profile ID for 3213 * @prof_id: pointer to variable to receive the profile ID 3214 * 3215 * This function allocates a new profile ID, which also corresponds to a Field 3216 * Vector (Extraction Sequence) entry. 3217 */ 3218 static int ice_alloc_prof_id(struct ice_hw *hw, enum ice_block blk, u8 *prof_id) 3219 { 3220 u16 res_type; 3221 u16 get_prof; 3222 int status; 3223 3224 if (!ice_prof_id_rsrc_type(blk, &res_type)) 3225 return -EINVAL; 3226 3227 status = ice_alloc_hw_res(hw, res_type, 1, false, &get_prof); 3228 if (!status) 3229 *prof_id = (u8)get_prof; 3230 3231 return status; 3232 } 3233 3234 /** 3235 * ice_free_prof_id - free profile ID 3236 * @hw: pointer to the HW struct 3237 * @blk: the block from which to free the profile ID 3238 * @prof_id: the profile ID to free 3239 * 3240 * This function frees a profile ID, which also corresponds to a Field Vector. 3241 */ 3242 static int ice_free_prof_id(struct ice_hw *hw, enum ice_block blk, u8 prof_id) 3243 { 3244 u16 tmp_prof_id = (u16)prof_id; 3245 u16 res_type; 3246 3247 if (!ice_prof_id_rsrc_type(blk, &res_type)) 3248 return -EINVAL; 3249 3250 return ice_free_hw_res(hw, res_type, 1, &tmp_prof_id); 3251 } 3252 3253 /** 3254 * ice_prof_inc_ref - increment reference count for profile 3255 * @hw: pointer to the HW struct 3256 * @blk: the block from which to free the profile ID 3257 * @prof_id: the profile ID for which to increment the reference count 3258 */ 3259 static int ice_prof_inc_ref(struct ice_hw *hw, enum ice_block blk, u8 prof_id) 3260 { 3261 if (prof_id > hw->blk[blk].es.count) 3262 return -EINVAL; 3263 3264 hw->blk[blk].es.ref_count[prof_id]++; 3265 3266 return 0; 3267 } 3268 3269 /** 3270 * ice_write_prof_mask_reg - write profile mask register 3271 * @hw: pointer to the HW struct 3272 * @blk: hardware block 3273 * @mask_idx: mask index 3274 * @idx: index of the FV which will use the mask 3275 * @mask: the 16-bit mask 3276 */ 3277 static void 3278 ice_write_prof_mask_reg(struct ice_hw *hw, enum ice_block blk, u16 mask_idx, 3279 u16 idx, u16 mask) 3280 { 3281 u32 offset; 3282 u32 val; 3283 3284 switch (blk) { 3285 case ICE_BLK_RSS: 3286 offset = GLQF_HMASK(mask_idx); 3287 val = (idx << GLQF_HMASK_MSK_INDEX_S) & GLQF_HMASK_MSK_INDEX_M; 3288 val |= (mask << GLQF_HMASK_MASK_S) & GLQF_HMASK_MASK_M; 3289 break; 3290 case ICE_BLK_FD: 3291 offset = GLQF_FDMASK(mask_idx); 3292 val = (idx << GLQF_FDMASK_MSK_INDEX_S) & GLQF_FDMASK_MSK_INDEX_M; 3293 val |= (mask << GLQF_FDMASK_MASK_S) & GLQF_FDMASK_MASK_M; 3294 break; 3295 default: 3296 ice_debug(hw, ICE_DBG_PKG, "No profile masks for block %d\n", 3297 blk); 3298 return; 3299 } 3300 3301 wr32(hw, offset, val); 3302 ice_debug(hw, ICE_DBG_PKG, "write mask, blk %d (%d): %x = %x\n", 3303 blk, idx, offset, val); 3304 } 3305 3306 /** 3307 * ice_write_prof_mask_enable_res - write profile mask enable register 3308 * @hw: pointer to the HW struct 3309 * @blk: hardware block 3310 * @prof_id: profile ID 3311 * @enable_mask: enable mask 3312 */ 3313 static void 3314 ice_write_prof_mask_enable_res(struct ice_hw *hw, enum ice_block blk, 3315 u16 prof_id, u32 enable_mask) 3316 { 3317 u32 offset; 3318 3319 switch (blk) { 3320 case ICE_BLK_RSS: 3321 offset = GLQF_HMASK_SEL(prof_id); 3322 break; 3323 case ICE_BLK_FD: 3324 offset = GLQF_FDMASK_SEL(prof_id); 3325 break; 3326 default: 3327 ice_debug(hw, ICE_DBG_PKG, "No profile masks for block %d\n", 3328 blk); 3329 return; 3330 } 3331 3332 wr32(hw, offset, enable_mask); 3333 ice_debug(hw, ICE_DBG_PKG, "write mask enable, blk %d (%d): %x = %x\n", 3334 blk, prof_id, offset, enable_mask); 3335 } 3336 3337 /** 3338 * ice_init_prof_masks - initial prof masks 3339 * @hw: pointer to the HW struct 3340 * @blk: hardware block 3341 */ 3342 static void ice_init_prof_masks(struct ice_hw *hw, enum ice_block blk) 3343 { 3344 u16 per_pf; 3345 u16 i; 3346 3347 mutex_init(&hw->blk[blk].masks.lock); 3348 3349 per_pf = ICE_PROF_MASK_COUNT / hw->dev_caps.num_funcs; 3350 3351 hw->blk[blk].masks.count = per_pf; 3352 hw->blk[blk].masks.first = hw->pf_id * per_pf; 3353 3354 memset(hw->blk[blk].masks.masks, 0, sizeof(hw->blk[blk].masks.masks)); 3355 3356 for (i = hw->blk[blk].masks.first; 3357 i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++) 3358 ice_write_prof_mask_reg(hw, blk, i, 0, 0); 3359 } 3360 3361 /** 3362 * ice_init_all_prof_masks - initialize all prof masks 3363 * @hw: pointer to the HW struct 3364 */ 3365 static void ice_init_all_prof_masks(struct ice_hw *hw) 3366 { 3367 ice_init_prof_masks(hw, ICE_BLK_RSS); 3368 ice_init_prof_masks(hw, ICE_BLK_FD); 3369 } 3370 3371 /** 3372 * ice_alloc_prof_mask - allocate profile mask 3373 * @hw: pointer to the HW struct 3374 * @blk: hardware block 3375 * @idx: index of FV which will use the mask 3376 * @mask: the 16-bit mask 3377 * @mask_idx: variable to receive the mask index 3378 */ 3379 static int 3380 ice_alloc_prof_mask(struct ice_hw *hw, enum ice_block blk, u16 idx, u16 mask, 3381 u16 *mask_idx) 3382 { 3383 bool found_unused = false, found_copy = false; 3384 u16 unused_idx = 0, copy_idx = 0; 3385 int status = -ENOSPC; 3386 u16 i; 3387 3388 if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) 3389 return -EINVAL; 3390 3391 mutex_lock(&hw->blk[blk].masks.lock); 3392 3393 for (i = hw->blk[blk].masks.first; 3394 i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++) 3395 if (hw->blk[blk].masks.masks[i].in_use) { 3396 /* if mask is in use and it exactly duplicates the 3397 * desired mask and index, then in can be reused 3398 */ 3399 if (hw->blk[blk].masks.masks[i].mask == mask && 3400 hw->blk[blk].masks.masks[i].idx == idx) { 3401 found_copy = true; 3402 copy_idx = i; 3403 break; 3404 } 3405 } else { 3406 /* save off unused index, but keep searching in case 3407 * there is an exact match later on 3408 */ 3409 if (!found_unused) { 3410 found_unused = true; 3411 unused_idx = i; 3412 } 3413 } 3414 3415 if (found_copy) 3416 i = copy_idx; 3417 else if (found_unused) 3418 i = unused_idx; 3419 else 3420 goto err_ice_alloc_prof_mask; 3421 3422 /* update mask for a new entry */ 3423 if (found_unused) { 3424 hw->blk[blk].masks.masks[i].in_use = true; 3425 hw->blk[blk].masks.masks[i].mask = mask; 3426 hw->blk[blk].masks.masks[i].idx = idx; 3427 hw->blk[blk].masks.masks[i].ref = 0; 3428 ice_write_prof_mask_reg(hw, blk, i, idx, mask); 3429 } 3430 3431 hw->blk[blk].masks.masks[i].ref++; 3432 *mask_idx = i; 3433 status = 0; 3434 3435 err_ice_alloc_prof_mask: 3436 mutex_unlock(&hw->blk[blk].masks.lock); 3437 3438 return status; 3439 } 3440 3441 /** 3442 * ice_free_prof_mask - free profile mask 3443 * @hw: pointer to the HW struct 3444 * @blk: hardware block 3445 * @mask_idx: index of mask 3446 */ 3447 static int 3448 ice_free_prof_mask(struct ice_hw *hw, enum ice_block blk, u16 mask_idx) 3449 { 3450 if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) 3451 return -EINVAL; 3452 3453 if (!(mask_idx >= hw->blk[blk].masks.first && 3454 mask_idx < hw->blk[blk].masks.first + hw->blk[blk].masks.count)) 3455 return -ENOENT; 3456 3457 mutex_lock(&hw->blk[blk].masks.lock); 3458 3459 if (!hw->blk[blk].masks.masks[mask_idx].in_use) 3460 goto exit_ice_free_prof_mask; 3461 3462 if (hw->blk[blk].masks.masks[mask_idx].ref > 1) { 3463 hw->blk[blk].masks.masks[mask_idx].ref--; 3464 goto exit_ice_free_prof_mask; 3465 } 3466 3467 /* remove mask */ 3468 hw->blk[blk].masks.masks[mask_idx].in_use = false; 3469 hw->blk[blk].masks.masks[mask_idx].mask = 0; 3470 hw->blk[blk].masks.masks[mask_idx].idx = 0; 3471 3472 /* update mask as unused entry */ 3473 ice_debug(hw, ICE_DBG_PKG, "Free mask, blk %d, mask %d\n", blk, 3474 mask_idx); 3475 ice_write_prof_mask_reg(hw, blk, mask_idx, 0, 0); 3476 3477 exit_ice_free_prof_mask: 3478 mutex_unlock(&hw->blk[blk].masks.lock); 3479 3480 return 0; 3481 } 3482 3483 /** 3484 * ice_free_prof_masks - free all profile masks for a profile 3485 * @hw: pointer to the HW struct 3486 * @blk: hardware block 3487 * @prof_id: profile ID 3488 */ 3489 static int 3490 ice_free_prof_masks(struct ice_hw *hw, enum ice_block blk, u16 prof_id) 3491 { 3492 u32 mask_bm; 3493 u16 i; 3494 3495 if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) 3496 return -EINVAL; 3497 3498 mask_bm = hw->blk[blk].es.mask_ena[prof_id]; 3499 for (i = 0; i < BITS_PER_BYTE * sizeof(mask_bm); i++) 3500 if (mask_bm & BIT(i)) 3501 ice_free_prof_mask(hw, blk, i); 3502 3503 return 0; 3504 } 3505 3506 /** 3507 * ice_shutdown_prof_masks - releases lock for masking 3508 * @hw: pointer to the HW struct 3509 * @blk: hardware block 3510 * 3511 * This should be called before unloading the driver 3512 */ 3513 static void ice_shutdown_prof_masks(struct ice_hw *hw, enum ice_block blk) 3514 { 3515 u16 i; 3516 3517 mutex_lock(&hw->blk[blk].masks.lock); 3518 3519 for (i = hw->blk[blk].masks.first; 3520 i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++) { 3521 ice_write_prof_mask_reg(hw, blk, i, 0, 0); 3522 3523 hw->blk[blk].masks.masks[i].in_use = false; 3524 hw->blk[blk].masks.masks[i].idx = 0; 3525 hw->blk[blk].masks.masks[i].mask = 0; 3526 } 3527 3528 mutex_unlock(&hw->blk[blk].masks.lock); 3529 mutex_destroy(&hw->blk[blk].masks.lock); 3530 } 3531 3532 /** 3533 * ice_shutdown_all_prof_masks - releases all locks for masking 3534 * @hw: pointer to the HW struct 3535 * 3536 * This should be called before unloading the driver 3537 */ 3538 static void ice_shutdown_all_prof_masks(struct ice_hw *hw) 3539 { 3540 ice_shutdown_prof_masks(hw, ICE_BLK_RSS); 3541 ice_shutdown_prof_masks(hw, ICE_BLK_FD); 3542 } 3543 3544 /** 3545 * ice_update_prof_masking - set registers according to masking 3546 * @hw: pointer to the HW struct 3547 * @blk: hardware block 3548 * @prof_id: profile ID 3549 * @masks: masks 3550 */ 3551 static int 3552 ice_update_prof_masking(struct ice_hw *hw, enum ice_block blk, u16 prof_id, 3553 u16 *masks) 3554 { 3555 bool err = false; 3556 u32 ena_mask = 0; 3557 u16 idx; 3558 u16 i; 3559 3560 /* Only support FD and RSS masking, otherwise nothing to be done */ 3561 if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) 3562 return 0; 3563 3564 for (i = 0; i < hw->blk[blk].es.fvw; i++) 3565 if (masks[i] && masks[i] != 0xFFFF) { 3566 if (!ice_alloc_prof_mask(hw, blk, i, masks[i], &idx)) { 3567 ena_mask |= BIT(idx); 3568 } else { 3569 /* not enough bitmaps */ 3570 err = true; 3571 break; 3572 } 3573 } 3574 3575 if (err) { 3576 /* free any bitmaps we have allocated */ 3577 for (i = 0; i < BITS_PER_BYTE * sizeof(ena_mask); i++) 3578 if (ena_mask & BIT(i)) 3579 ice_free_prof_mask(hw, blk, i); 3580 3581 return -EIO; 3582 } 3583 3584 /* enable the masks for this profile */ 3585 ice_write_prof_mask_enable_res(hw, blk, prof_id, ena_mask); 3586 3587 /* store enabled masks with profile so that they can be freed later */ 3588 hw->blk[blk].es.mask_ena[prof_id] = ena_mask; 3589 3590 return 0; 3591 } 3592 3593 /** 3594 * ice_write_es - write an extraction sequence to hardware 3595 * @hw: pointer to the HW struct 3596 * @blk: the block in which to write the extraction sequence 3597 * @prof_id: the profile ID to write 3598 * @fv: pointer to the extraction sequence to write - NULL to clear extraction 3599 */ 3600 static void 3601 ice_write_es(struct ice_hw *hw, enum ice_block blk, u8 prof_id, 3602 struct ice_fv_word *fv) 3603 { 3604 u16 off; 3605 3606 off = prof_id * hw->blk[blk].es.fvw; 3607 if (!fv) { 3608 memset(&hw->blk[blk].es.t[off], 0, 3609 hw->blk[blk].es.fvw * sizeof(*fv)); 3610 hw->blk[blk].es.written[prof_id] = false; 3611 } else { 3612 memcpy(&hw->blk[blk].es.t[off], fv, 3613 hw->blk[blk].es.fvw * sizeof(*fv)); 3614 } 3615 } 3616 3617 /** 3618 * ice_prof_dec_ref - decrement reference count for profile 3619 * @hw: pointer to the HW struct 3620 * @blk: the block from which to free the profile ID 3621 * @prof_id: the profile ID for which to decrement the reference count 3622 */ 3623 static int 3624 ice_prof_dec_ref(struct ice_hw *hw, enum ice_block blk, u8 prof_id) 3625 { 3626 if (prof_id > hw->blk[blk].es.count) 3627 return -EINVAL; 3628 3629 if (hw->blk[blk].es.ref_count[prof_id] > 0) { 3630 if (!--hw->blk[blk].es.ref_count[prof_id]) { 3631 ice_write_es(hw, blk, prof_id, NULL); 3632 ice_free_prof_masks(hw, blk, prof_id); 3633 return ice_free_prof_id(hw, blk, prof_id); 3634 } 3635 } 3636 3637 return 0; 3638 } 3639 3640 /* Block / table section IDs */ 3641 static const u32 ice_blk_sids[ICE_BLK_COUNT][ICE_SID_OFF_COUNT] = { 3642 /* SWITCH */ 3643 { ICE_SID_XLT1_SW, 3644 ICE_SID_XLT2_SW, 3645 ICE_SID_PROFID_TCAM_SW, 3646 ICE_SID_PROFID_REDIR_SW, 3647 ICE_SID_FLD_VEC_SW 3648 }, 3649 3650 /* ACL */ 3651 { ICE_SID_XLT1_ACL, 3652 ICE_SID_XLT2_ACL, 3653 ICE_SID_PROFID_TCAM_ACL, 3654 ICE_SID_PROFID_REDIR_ACL, 3655 ICE_SID_FLD_VEC_ACL 3656 }, 3657 3658 /* FD */ 3659 { ICE_SID_XLT1_FD, 3660 ICE_SID_XLT2_FD, 3661 ICE_SID_PROFID_TCAM_FD, 3662 ICE_SID_PROFID_REDIR_FD, 3663 ICE_SID_FLD_VEC_FD 3664 }, 3665 3666 /* RSS */ 3667 { ICE_SID_XLT1_RSS, 3668 ICE_SID_XLT2_RSS, 3669 ICE_SID_PROFID_TCAM_RSS, 3670 ICE_SID_PROFID_REDIR_RSS, 3671 ICE_SID_FLD_VEC_RSS 3672 }, 3673 3674 /* PE */ 3675 { ICE_SID_XLT1_PE, 3676 ICE_SID_XLT2_PE, 3677 ICE_SID_PROFID_TCAM_PE, 3678 ICE_SID_PROFID_REDIR_PE, 3679 ICE_SID_FLD_VEC_PE 3680 } 3681 }; 3682 3683 /** 3684 * ice_init_sw_xlt1_db - init software XLT1 database from HW tables 3685 * @hw: pointer to the hardware structure 3686 * @blk: the HW block to initialize 3687 */ 3688 static void ice_init_sw_xlt1_db(struct ice_hw *hw, enum ice_block blk) 3689 { 3690 u16 pt; 3691 3692 for (pt = 0; pt < hw->blk[blk].xlt1.count; pt++) { 3693 u8 ptg; 3694 3695 ptg = hw->blk[blk].xlt1.t[pt]; 3696 if (ptg != ICE_DEFAULT_PTG) { 3697 ice_ptg_alloc_val(hw, blk, ptg); 3698 ice_ptg_add_mv_ptype(hw, blk, pt, ptg); 3699 } 3700 } 3701 } 3702 3703 /** 3704 * ice_init_sw_xlt2_db - init software XLT2 database from HW tables 3705 * @hw: pointer to the hardware structure 3706 * @blk: the HW block to initialize 3707 */ 3708 static void ice_init_sw_xlt2_db(struct ice_hw *hw, enum ice_block blk) 3709 { 3710 u16 vsi; 3711 3712 for (vsi = 0; vsi < hw->blk[blk].xlt2.count; vsi++) { 3713 u16 vsig; 3714 3715 vsig = hw->blk[blk].xlt2.t[vsi]; 3716 if (vsig) { 3717 ice_vsig_alloc_val(hw, blk, vsig); 3718 ice_vsig_add_mv_vsi(hw, blk, vsi, vsig); 3719 /* no changes at this time, since this has been 3720 * initialized from the original package 3721 */ 3722 hw->blk[blk].xlt2.vsis[vsi].changed = 0; 3723 } 3724 } 3725 } 3726 3727 /** 3728 * ice_init_sw_db - init software database from HW tables 3729 * @hw: pointer to the hardware structure 3730 */ 3731 static void ice_init_sw_db(struct ice_hw *hw) 3732 { 3733 u16 i; 3734 3735 for (i = 0; i < ICE_BLK_COUNT; i++) { 3736 ice_init_sw_xlt1_db(hw, (enum ice_block)i); 3737 ice_init_sw_xlt2_db(hw, (enum ice_block)i); 3738 } 3739 } 3740 3741 /** 3742 * ice_fill_tbl - Reads content of a single table type into database 3743 * @hw: pointer to the hardware structure 3744 * @block_id: Block ID of the table to copy 3745 * @sid: Section ID of the table to copy 3746 * 3747 * Will attempt to read the entire content of a given table of a single block 3748 * into the driver database. We assume that the buffer will always 3749 * be as large or larger than the data contained in the package. If 3750 * this condition is not met, there is most likely an error in the package 3751 * contents. 3752 */ 3753 static void ice_fill_tbl(struct ice_hw *hw, enum ice_block block_id, u32 sid) 3754 { 3755 u32 dst_len, sect_len, offset = 0; 3756 struct ice_prof_redir_section *pr; 3757 struct ice_prof_id_section *pid; 3758 struct ice_xlt1_section *xlt1; 3759 struct ice_xlt2_section *xlt2; 3760 struct ice_sw_fv_section *es; 3761 struct ice_pkg_enum state; 3762 u8 *src, *dst; 3763 void *sect; 3764 3765 /* if the HW segment pointer is null then the first iteration of 3766 * ice_pkg_enum_section() will fail. In this case the HW tables will 3767 * not be filled and return success. 3768 */ 3769 if (!hw->seg) { 3770 ice_debug(hw, ICE_DBG_PKG, "hw->seg is NULL, tables are not filled\n"); 3771 return; 3772 } 3773 3774 memset(&state, 0, sizeof(state)); 3775 3776 sect = ice_pkg_enum_section(hw->seg, &state, sid); 3777 3778 while (sect) { 3779 switch (sid) { 3780 case ICE_SID_XLT1_SW: 3781 case ICE_SID_XLT1_FD: 3782 case ICE_SID_XLT1_RSS: 3783 case ICE_SID_XLT1_ACL: 3784 case ICE_SID_XLT1_PE: 3785 xlt1 = sect; 3786 src = xlt1->value; 3787 sect_len = le16_to_cpu(xlt1->count) * 3788 sizeof(*hw->blk[block_id].xlt1.t); 3789 dst = hw->blk[block_id].xlt1.t; 3790 dst_len = hw->blk[block_id].xlt1.count * 3791 sizeof(*hw->blk[block_id].xlt1.t); 3792 break; 3793 case ICE_SID_XLT2_SW: 3794 case ICE_SID_XLT2_FD: 3795 case ICE_SID_XLT2_RSS: 3796 case ICE_SID_XLT2_ACL: 3797 case ICE_SID_XLT2_PE: 3798 xlt2 = sect; 3799 src = (__force u8 *)xlt2->value; 3800 sect_len = le16_to_cpu(xlt2->count) * 3801 sizeof(*hw->blk[block_id].xlt2.t); 3802 dst = (u8 *)hw->blk[block_id].xlt2.t; 3803 dst_len = hw->blk[block_id].xlt2.count * 3804 sizeof(*hw->blk[block_id].xlt2.t); 3805 break; 3806 case ICE_SID_PROFID_TCAM_SW: 3807 case ICE_SID_PROFID_TCAM_FD: 3808 case ICE_SID_PROFID_TCAM_RSS: 3809 case ICE_SID_PROFID_TCAM_ACL: 3810 case ICE_SID_PROFID_TCAM_PE: 3811 pid = sect; 3812 src = (u8 *)pid->entry; 3813 sect_len = le16_to_cpu(pid->count) * 3814 sizeof(*hw->blk[block_id].prof.t); 3815 dst = (u8 *)hw->blk[block_id].prof.t; 3816 dst_len = hw->blk[block_id].prof.count * 3817 sizeof(*hw->blk[block_id].prof.t); 3818 break; 3819 case ICE_SID_PROFID_REDIR_SW: 3820 case ICE_SID_PROFID_REDIR_FD: 3821 case ICE_SID_PROFID_REDIR_RSS: 3822 case ICE_SID_PROFID_REDIR_ACL: 3823 case ICE_SID_PROFID_REDIR_PE: 3824 pr = sect; 3825 src = pr->redir_value; 3826 sect_len = le16_to_cpu(pr->count) * 3827 sizeof(*hw->blk[block_id].prof_redir.t); 3828 dst = hw->blk[block_id].prof_redir.t; 3829 dst_len = hw->blk[block_id].prof_redir.count * 3830 sizeof(*hw->blk[block_id].prof_redir.t); 3831 break; 3832 case ICE_SID_FLD_VEC_SW: 3833 case ICE_SID_FLD_VEC_FD: 3834 case ICE_SID_FLD_VEC_RSS: 3835 case ICE_SID_FLD_VEC_ACL: 3836 case ICE_SID_FLD_VEC_PE: 3837 es = sect; 3838 src = (u8 *)es->fv; 3839 sect_len = (u32)(le16_to_cpu(es->count) * 3840 hw->blk[block_id].es.fvw) * 3841 sizeof(*hw->blk[block_id].es.t); 3842 dst = (u8 *)hw->blk[block_id].es.t; 3843 dst_len = (u32)(hw->blk[block_id].es.count * 3844 hw->blk[block_id].es.fvw) * 3845 sizeof(*hw->blk[block_id].es.t); 3846 break; 3847 default: 3848 return; 3849 } 3850 3851 /* if the section offset exceeds destination length, terminate 3852 * table fill. 3853 */ 3854 if (offset > dst_len) 3855 return; 3856 3857 /* if the sum of section size and offset exceed destination size 3858 * then we are out of bounds of the HW table size for that PF. 3859 * Changing section length to fill the remaining table space 3860 * of that PF. 3861 */ 3862 if ((offset + sect_len) > dst_len) 3863 sect_len = dst_len - offset; 3864 3865 memcpy(dst + offset, src, sect_len); 3866 offset += sect_len; 3867 sect = ice_pkg_enum_section(NULL, &state, sid); 3868 } 3869 } 3870 3871 /** 3872 * ice_fill_blk_tbls - Read package context for tables 3873 * @hw: pointer to the hardware structure 3874 * 3875 * Reads the current package contents and populates the driver 3876 * database with the data iteratively for all advanced feature 3877 * blocks. Assume that the HW tables have been allocated. 3878 */ 3879 void ice_fill_blk_tbls(struct ice_hw *hw) 3880 { 3881 u8 i; 3882 3883 for (i = 0; i < ICE_BLK_COUNT; i++) { 3884 enum ice_block blk_id = (enum ice_block)i; 3885 3886 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].xlt1.sid); 3887 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].xlt2.sid); 3888 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].prof.sid); 3889 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].prof_redir.sid); 3890 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].es.sid); 3891 } 3892 3893 ice_init_sw_db(hw); 3894 } 3895 3896 /** 3897 * ice_free_prof_map - free profile map 3898 * @hw: pointer to the hardware structure 3899 * @blk_idx: HW block index 3900 */ 3901 static void ice_free_prof_map(struct ice_hw *hw, u8 blk_idx) 3902 { 3903 struct ice_es *es = &hw->blk[blk_idx].es; 3904 struct ice_prof_map *del, *tmp; 3905 3906 mutex_lock(&es->prof_map_lock); 3907 list_for_each_entry_safe(del, tmp, &es->prof_map, list) { 3908 list_del(&del->list); 3909 devm_kfree(ice_hw_to_dev(hw), del); 3910 } 3911 INIT_LIST_HEAD(&es->prof_map); 3912 mutex_unlock(&es->prof_map_lock); 3913 } 3914 3915 /** 3916 * ice_free_flow_profs - free flow profile entries 3917 * @hw: pointer to the hardware structure 3918 * @blk_idx: HW block index 3919 */ 3920 static void ice_free_flow_profs(struct ice_hw *hw, u8 blk_idx) 3921 { 3922 struct ice_flow_prof *p, *tmp; 3923 3924 mutex_lock(&hw->fl_profs_locks[blk_idx]); 3925 list_for_each_entry_safe(p, tmp, &hw->fl_profs[blk_idx], l_entry) { 3926 struct ice_flow_entry *e, *t; 3927 3928 list_for_each_entry_safe(e, t, &p->entries, l_entry) 3929 ice_flow_rem_entry(hw, (enum ice_block)blk_idx, 3930 ICE_FLOW_ENTRY_HNDL(e)); 3931 3932 list_del(&p->l_entry); 3933 3934 mutex_destroy(&p->entries_lock); 3935 devm_kfree(ice_hw_to_dev(hw), p); 3936 } 3937 mutex_unlock(&hw->fl_profs_locks[blk_idx]); 3938 3939 /* if driver is in reset and tables are being cleared 3940 * re-initialize the flow profile list heads 3941 */ 3942 INIT_LIST_HEAD(&hw->fl_profs[blk_idx]); 3943 } 3944 3945 /** 3946 * ice_free_vsig_tbl - free complete VSIG table entries 3947 * @hw: pointer to the hardware structure 3948 * @blk: the HW block on which to free the VSIG table entries 3949 */ 3950 static void ice_free_vsig_tbl(struct ice_hw *hw, enum ice_block blk) 3951 { 3952 u16 i; 3953 3954 if (!hw->blk[blk].xlt2.vsig_tbl) 3955 return; 3956 3957 for (i = 1; i < ICE_MAX_VSIGS; i++) 3958 if (hw->blk[blk].xlt2.vsig_tbl[i].in_use) 3959 ice_vsig_free(hw, blk, i); 3960 } 3961 3962 /** 3963 * ice_free_hw_tbls - free hardware table memory 3964 * @hw: pointer to the hardware structure 3965 */ 3966 void ice_free_hw_tbls(struct ice_hw *hw) 3967 { 3968 struct ice_rss_cfg *r, *rt; 3969 u8 i; 3970 3971 for (i = 0; i < ICE_BLK_COUNT; i++) { 3972 if (hw->blk[i].is_list_init) { 3973 struct ice_es *es = &hw->blk[i].es; 3974 3975 ice_free_prof_map(hw, i); 3976 mutex_destroy(&es->prof_map_lock); 3977 3978 ice_free_flow_profs(hw, i); 3979 mutex_destroy(&hw->fl_profs_locks[i]); 3980 3981 hw->blk[i].is_list_init = false; 3982 } 3983 ice_free_vsig_tbl(hw, (enum ice_block)i); 3984 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt1.ptypes); 3985 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt1.ptg_tbl); 3986 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt1.t); 3987 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt2.t); 3988 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt2.vsig_tbl); 3989 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt2.vsis); 3990 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].prof.t); 3991 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].prof_redir.t); 3992 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.t); 3993 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.ref_count); 3994 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.written); 3995 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.mask_ena); 3996 } 3997 3998 list_for_each_entry_safe(r, rt, &hw->rss_list_head, l_entry) { 3999 list_del(&r->l_entry); 4000 devm_kfree(ice_hw_to_dev(hw), r); 4001 } 4002 mutex_destroy(&hw->rss_locks); 4003 ice_shutdown_all_prof_masks(hw); 4004 memset(hw->blk, 0, sizeof(hw->blk)); 4005 } 4006 4007 /** 4008 * ice_init_flow_profs - init flow profile locks and list heads 4009 * @hw: pointer to the hardware structure 4010 * @blk_idx: HW block index 4011 */ 4012 static void ice_init_flow_profs(struct ice_hw *hw, u8 blk_idx) 4013 { 4014 mutex_init(&hw->fl_profs_locks[blk_idx]); 4015 INIT_LIST_HEAD(&hw->fl_profs[blk_idx]); 4016 } 4017 4018 /** 4019 * ice_clear_hw_tbls - clear HW tables and flow profiles 4020 * @hw: pointer to the hardware structure 4021 */ 4022 void ice_clear_hw_tbls(struct ice_hw *hw) 4023 { 4024 u8 i; 4025 4026 for (i = 0; i < ICE_BLK_COUNT; i++) { 4027 struct ice_prof_redir *prof_redir = &hw->blk[i].prof_redir; 4028 struct ice_prof_tcam *prof = &hw->blk[i].prof; 4029 struct ice_xlt1 *xlt1 = &hw->blk[i].xlt1; 4030 struct ice_xlt2 *xlt2 = &hw->blk[i].xlt2; 4031 struct ice_es *es = &hw->blk[i].es; 4032 4033 if (hw->blk[i].is_list_init) { 4034 ice_free_prof_map(hw, i); 4035 ice_free_flow_profs(hw, i); 4036 } 4037 4038 ice_free_vsig_tbl(hw, (enum ice_block)i); 4039 4040 memset(xlt1->ptypes, 0, xlt1->count * sizeof(*xlt1->ptypes)); 4041 memset(xlt1->ptg_tbl, 0, 4042 ICE_MAX_PTGS * sizeof(*xlt1->ptg_tbl)); 4043 memset(xlt1->t, 0, xlt1->count * sizeof(*xlt1->t)); 4044 4045 memset(xlt2->vsis, 0, xlt2->count * sizeof(*xlt2->vsis)); 4046 memset(xlt2->vsig_tbl, 0, 4047 xlt2->count * sizeof(*xlt2->vsig_tbl)); 4048 memset(xlt2->t, 0, xlt2->count * sizeof(*xlt2->t)); 4049 4050 memset(prof->t, 0, prof->count * sizeof(*prof->t)); 4051 memset(prof_redir->t, 0, 4052 prof_redir->count * sizeof(*prof_redir->t)); 4053 4054 memset(es->t, 0, es->count * sizeof(*es->t) * es->fvw); 4055 memset(es->ref_count, 0, es->count * sizeof(*es->ref_count)); 4056 memset(es->written, 0, es->count * sizeof(*es->written)); 4057 memset(es->mask_ena, 0, es->count * sizeof(*es->mask_ena)); 4058 } 4059 } 4060 4061 /** 4062 * ice_init_hw_tbls - init hardware table memory 4063 * @hw: pointer to the hardware structure 4064 */ 4065 int ice_init_hw_tbls(struct ice_hw *hw) 4066 { 4067 u8 i; 4068 4069 mutex_init(&hw->rss_locks); 4070 INIT_LIST_HEAD(&hw->rss_list_head); 4071 ice_init_all_prof_masks(hw); 4072 for (i = 0; i < ICE_BLK_COUNT; i++) { 4073 struct ice_prof_redir *prof_redir = &hw->blk[i].prof_redir; 4074 struct ice_prof_tcam *prof = &hw->blk[i].prof; 4075 struct ice_xlt1 *xlt1 = &hw->blk[i].xlt1; 4076 struct ice_xlt2 *xlt2 = &hw->blk[i].xlt2; 4077 struct ice_es *es = &hw->blk[i].es; 4078 u16 j; 4079 4080 if (hw->blk[i].is_list_init) 4081 continue; 4082 4083 ice_init_flow_profs(hw, i); 4084 mutex_init(&es->prof_map_lock); 4085 INIT_LIST_HEAD(&es->prof_map); 4086 hw->blk[i].is_list_init = true; 4087 4088 hw->blk[i].overwrite = blk_sizes[i].overwrite; 4089 es->reverse = blk_sizes[i].reverse; 4090 4091 xlt1->sid = ice_blk_sids[i][ICE_SID_XLT1_OFF]; 4092 xlt1->count = blk_sizes[i].xlt1; 4093 4094 xlt1->ptypes = devm_kcalloc(ice_hw_to_dev(hw), xlt1->count, 4095 sizeof(*xlt1->ptypes), GFP_KERNEL); 4096 4097 if (!xlt1->ptypes) 4098 goto err; 4099 4100 xlt1->ptg_tbl = devm_kcalloc(ice_hw_to_dev(hw), ICE_MAX_PTGS, 4101 sizeof(*xlt1->ptg_tbl), 4102 GFP_KERNEL); 4103 4104 if (!xlt1->ptg_tbl) 4105 goto err; 4106 4107 xlt1->t = devm_kcalloc(ice_hw_to_dev(hw), xlt1->count, 4108 sizeof(*xlt1->t), GFP_KERNEL); 4109 if (!xlt1->t) 4110 goto err; 4111 4112 xlt2->sid = ice_blk_sids[i][ICE_SID_XLT2_OFF]; 4113 xlt2->count = blk_sizes[i].xlt2; 4114 4115 xlt2->vsis = devm_kcalloc(ice_hw_to_dev(hw), xlt2->count, 4116 sizeof(*xlt2->vsis), GFP_KERNEL); 4117 4118 if (!xlt2->vsis) 4119 goto err; 4120 4121 xlt2->vsig_tbl = devm_kcalloc(ice_hw_to_dev(hw), xlt2->count, 4122 sizeof(*xlt2->vsig_tbl), 4123 GFP_KERNEL); 4124 if (!xlt2->vsig_tbl) 4125 goto err; 4126 4127 for (j = 0; j < xlt2->count; j++) 4128 INIT_LIST_HEAD(&xlt2->vsig_tbl[j].prop_lst); 4129 4130 xlt2->t = devm_kcalloc(ice_hw_to_dev(hw), xlt2->count, 4131 sizeof(*xlt2->t), GFP_KERNEL); 4132 if (!xlt2->t) 4133 goto err; 4134 4135 prof->sid = ice_blk_sids[i][ICE_SID_PR_OFF]; 4136 prof->count = blk_sizes[i].prof_tcam; 4137 prof->max_prof_id = blk_sizes[i].prof_id; 4138 prof->cdid_bits = blk_sizes[i].prof_cdid_bits; 4139 prof->t = devm_kcalloc(ice_hw_to_dev(hw), prof->count, 4140 sizeof(*prof->t), GFP_KERNEL); 4141 4142 if (!prof->t) 4143 goto err; 4144 4145 prof_redir->sid = ice_blk_sids[i][ICE_SID_PR_REDIR_OFF]; 4146 prof_redir->count = blk_sizes[i].prof_redir; 4147 prof_redir->t = devm_kcalloc(ice_hw_to_dev(hw), 4148 prof_redir->count, 4149 sizeof(*prof_redir->t), 4150 GFP_KERNEL); 4151 4152 if (!prof_redir->t) 4153 goto err; 4154 4155 es->sid = ice_blk_sids[i][ICE_SID_ES_OFF]; 4156 es->count = blk_sizes[i].es; 4157 es->fvw = blk_sizes[i].fvw; 4158 es->t = devm_kcalloc(ice_hw_to_dev(hw), 4159 (u32)(es->count * es->fvw), 4160 sizeof(*es->t), GFP_KERNEL); 4161 if (!es->t) 4162 goto err; 4163 4164 es->ref_count = devm_kcalloc(ice_hw_to_dev(hw), es->count, 4165 sizeof(*es->ref_count), 4166 GFP_KERNEL); 4167 if (!es->ref_count) 4168 goto err; 4169 4170 es->written = devm_kcalloc(ice_hw_to_dev(hw), es->count, 4171 sizeof(*es->written), GFP_KERNEL); 4172 if (!es->written) 4173 goto err; 4174 4175 es->mask_ena = devm_kcalloc(ice_hw_to_dev(hw), es->count, 4176 sizeof(*es->mask_ena), GFP_KERNEL); 4177 if (!es->mask_ena) 4178 goto err; 4179 } 4180 return 0; 4181 4182 err: 4183 ice_free_hw_tbls(hw); 4184 return -ENOMEM; 4185 } 4186 4187 /** 4188 * ice_prof_gen_key - generate profile ID key 4189 * @hw: pointer to the HW struct 4190 * @blk: the block in which to write profile ID to 4191 * @ptg: packet type group (PTG) portion of key 4192 * @vsig: VSIG portion of key 4193 * @cdid: CDID portion of key 4194 * @flags: flag portion of key 4195 * @vl_msk: valid mask 4196 * @dc_msk: don't care mask 4197 * @nm_msk: never match mask 4198 * @key: output of profile ID key 4199 */ 4200 static int 4201 ice_prof_gen_key(struct ice_hw *hw, enum ice_block blk, u8 ptg, u16 vsig, 4202 u8 cdid, u16 flags, u8 vl_msk[ICE_TCAM_KEY_VAL_SZ], 4203 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ], u8 nm_msk[ICE_TCAM_KEY_VAL_SZ], 4204 u8 key[ICE_TCAM_KEY_SZ]) 4205 { 4206 struct ice_prof_id_key inkey; 4207 4208 inkey.xlt1 = ptg; 4209 inkey.xlt2_cdid = cpu_to_le16(vsig); 4210 inkey.flags = cpu_to_le16(flags); 4211 4212 switch (hw->blk[blk].prof.cdid_bits) { 4213 case 0: 4214 break; 4215 case 2: 4216 #define ICE_CD_2_M 0xC000U 4217 #define ICE_CD_2_S 14 4218 inkey.xlt2_cdid &= ~cpu_to_le16(ICE_CD_2_M); 4219 inkey.xlt2_cdid |= cpu_to_le16(BIT(cdid) << ICE_CD_2_S); 4220 break; 4221 case 4: 4222 #define ICE_CD_4_M 0xF000U 4223 #define ICE_CD_4_S 12 4224 inkey.xlt2_cdid &= ~cpu_to_le16(ICE_CD_4_M); 4225 inkey.xlt2_cdid |= cpu_to_le16(BIT(cdid) << ICE_CD_4_S); 4226 break; 4227 case 8: 4228 #define ICE_CD_8_M 0xFF00U 4229 #define ICE_CD_8_S 16 4230 inkey.xlt2_cdid &= ~cpu_to_le16(ICE_CD_8_M); 4231 inkey.xlt2_cdid |= cpu_to_le16(BIT(cdid) << ICE_CD_8_S); 4232 break; 4233 default: 4234 ice_debug(hw, ICE_DBG_PKG, "Error in profile config\n"); 4235 break; 4236 } 4237 4238 return ice_set_key(key, ICE_TCAM_KEY_SZ, (u8 *)&inkey, vl_msk, dc_msk, 4239 nm_msk, 0, ICE_TCAM_KEY_SZ / 2); 4240 } 4241 4242 /** 4243 * ice_tcam_write_entry - write TCAM entry 4244 * @hw: pointer to the HW struct 4245 * @blk: the block in which to write profile ID to 4246 * @idx: the entry index to write to 4247 * @prof_id: profile ID 4248 * @ptg: packet type group (PTG) portion of key 4249 * @vsig: VSIG portion of key 4250 * @cdid: CDID portion of key 4251 * @flags: flag portion of key 4252 * @vl_msk: valid mask 4253 * @dc_msk: don't care mask 4254 * @nm_msk: never match mask 4255 */ 4256 static int 4257 ice_tcam_write_entry(struct ice_hw *hw, enum ice_block blk, u16 idx, 4258 u8 prof_id, u8 ptg, u16 vsig, u8 cdid, u16 flags, 4259 u8 vl_msk[ICE_TCAM_KEY_VAL_SZ], 4260 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ], 4261 u8 nm_msk[ICE_TCAM_KEY_VAL_SZ]) 4262 { 4263 struct ice_prof_tcam_entry; 4264 int status; 4265 4266 status = ice_prof_gen_key(hw, blk, ptg, vsig, cdid, flags, vl_msk, 4267 dc_msk, nm_msk, hw->blk[blk].prof.t[idx].key); 4268 if (!status) { 4269 hw->blk[blk].prof.t[idx].addr = cpu_to_le16(idx); 4270 hw->blk[blk].prof.t[idx].prof_id = prof_id; 4271 } 4272 4273 return status; 4274 } 4275 4276 /** 4277 * ice_vsig_get_ref - returns number of VSIs belong to a VSIG 4278 * @hw: pointer to the hardware structure 4279 * @blk: HW block 4280 * @vsig: VSIG to query 4281 * @refs: pointer to variable to receive the reference count 4282 */ 4283 static int 4284 ice_vsig_get_ref(struct ice_hw *hw, enum ice_block blk, u16 vsig, u16 *refs) 4285 { 4286 u16 idx = vsig & ICE_VSIG_IDX_M; 4287 struct ice_vsig_vsi *ptr; 4288 4289 *refs = 0; 4290 4291 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) 4292 return -ENOENT; 4293 4294 ptr = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 4295 while (ptr) { 4296 (*refs)++; 4297 ptr = ptr->next_vsi; 4298 } 4299 4300 return 0; 4301 } 4302 4303 /** 4304 * ice_has_prof_vsig - check to see if VSIG has a specific profile 4305 * @hw: pointer to the hardware structure 4306 * @blk: HW block 4307 * @vsig: VSIG to check against 4308 * @hdl: profile handle 4309 */ 4310 static bool 4311 ice_has_prof_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl) 4312 { 4313 u16 idx = vsig & ICE_VSIG_IDX_M; 4314 struct ice_vsig_prof *ent; 4315 4316 list_for_each_entry(ent, &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 4317 list) 4318 if (ent->profile_cookie == hdl) 4319 return true; 4320 4321 ice_debug(hw, ICE_DBG_INIT, "Characteristic list for VSI group %d not found.\n", 4322 vsig); 4323 return false; 4324 } 4325 4326 /** 4327 * ice_prof_bld_es - build profile ID extraction sequence changes 4328 * @hw: pointer to the HW struct 4329 * @blk: hardware block 4330 * @bld: the update package buffer build to add to 4331 * @chgs: the list of changes to make in hardware 4332 */ 4333 static int 4334 ice_prof_bld_es(struct ice_hw *hw, enum ice_block blk, 4335 struct ice_buf_build *bld, struct list_head *chgs) 4336 { 4337 u16 vec_size = hw->blk[blk].es.fvw * sizeof(struct ice_fv_word); 4338 struct ice_chs_chg *tmp; 4339 4340 list_for_each_entry(tmp, chgs, list_entry) 4341 if (tmp->type == ICE_PTG_ES_ADD && tmp->add_prof) { 4342 u16 off = tmp->prof_id * hw->blk[blk].es.fvw; 4343 struct ice_pkg_es *p; 4344 u32 id; 4345 4346 id = ice_sect_id(blk, ICE_VEC_TBL); 4347 p = ice_pkg_buf_alloc_section(bld, id, 4348 struct_size(p, es, 1) + 4349 vec_size - 4350 sizeof(p->es[0])); 4351 4352 if (!p) 4353 return -ENOSPC; 4354 4355 p->count = cpu_to_le16(1); 4356 p->offset = cpu_to_le16(tmp->prof_id); 4357 4358 memcpy(p->es, &hw->blk[blk].es.t[off], vec_size); 4359 } 4360 4361 return 0; 4362 } 4363 4364 /** 4365 * ice_prof_bld_tcam - build profile ID TCAM changes 4366 * @hw: pointer to the HW struct 4367 * @blk: hardware block 4368 * @bld: the update package buffer build to add to 4369 * @chgs: the list of changes to make in hardware 4370 */ 4371 static int 4372 ice_prof_bld_tcam(struct ice_hw *hw, enum ice_block blk, 4373 struct ice_buf_build *bld, struct list_head *chgs) 4374 { 4375 struct ice_chs_chg *tmp; 4376 4377 list_for_each_entry(tmp, chgs, list_entry) 4378 if (tmp->type == ICE_TCAM_ADD && tmp->add_tcam_idx) { 4379 struct ice_prof_id_section *p; 4380 u32 id; 4381 4382 id = ice_sect_id(blk, ICE_PROF_TCAM); 4383 p = ice_pkg_buf_alloc_section(bld, id, 4384 struct_size(p, entry, 1)); 4385 4386 if (!p) 4387 return -ENOSPC; 4388 4389 p->count = cpu_to_le16(1); 4390 p->entry[0].addr = cpu_to_le16(tmp->tcam_idx); 4391 p->entry[0].prof_id = tmp->prof_id; 4392 4393 memcpy(p->entry[0].key, 4394 &hw->blk[blk].prof.t[tmp->tcam_idx].key, 4395 sizeof(hw->blk[blk].prof.t->key)); 4396 } 4397 4398 return 0; 4399 } 4400 4401 /** 4402 * ice_prof_bld_xlt1 - build XLT1 changes 4403 * @blk: hardware block 4404 * @bld: the update package buffer build to add to 4405 * @chgs: the list of changes to make in hardware 4406 */ 4407 static int 4408 ice_prof_bld_xlt1(enum ice_block blk, struct ice_buf_build *bld, 4409 struct list_head *chgs) 4410 { 4411 struct ice_chs_chg *tmp; 4412 4413 list_for_each_entry(tmp, chgs, list_entry) 4414 if (tmp->type == ICE_PTG_ES_ADD && tmp->add_ptg) { 4415 struct ice_xlt1_section *p; 4416 u32 id; 4417 4418 id = ice_sect_id(blk, ICE_XLT1); 4419 p = ice_pkg_buf_alloc_section(bld, id, 4420 struct_size(p, value, 1)); 4421 4422 if (!p) 4423 return -ENOSPC; 4424 4425 p->count = cpu_to_le16(1); 4426 p->offset = cpu_to_le16(tmp->ptype); 4427 p->value[0] = tmp->ptg; 4428 } 4429 4430 return 0; 4431 } 4432 4433 /** 4434 * ice_prof_bld_xlt2 - build XLT2 changes 4435 * @blk: hardware block 4436 * @bld: the update package buffer build to add to 4437 * @chgs: the list of changes to make in hardware 4438 */ 4439 static int 4440 ice_prof_bld_xlt2(enum ice_block blk, struct ice_buf_build *bld, 4441 struct list_head *chgs) 4442 { 4443 struct ice_chs_chg *tmp; 4444 4445 list_for_each_entry(tmp, chgs, list_entry) { 4446 struct ice_xlt2_section *p; 4447 u32 id; 4448 4449 switch (tmp->type) { 4450 case ICE_VSIG_ADD: 4451 case ICE_VSI_MOVE: 4452 case ICE_VSIG_REM: 4453 id = ice_sect_id(blk, ICE_XLT2); 4454 p = ice_pkg_buf_alloc_section(bld, id, 4455 struct_size(p, value, 1)); 4456 4457 if (!p) 4458 return -ENOSPC; 4459 4460 p->count = cpu_to_le16(1); 4461 p->offset = cpu_to_le16(tmp->vsi); 4462 p->value[0] = cpu_to_le16(tmp->vsig); 4463 break; 4464 default: 4465 break; 4466 } 4467 } 4468 4469 return 0; 4470 } 4471 4472 /** 4473 * ice_upd_prof_hw - update hardware using the change list 4474 * @hw: pointer to the HW struct 4475 * @blk: hardware block 4476 * @chgs: the list of changes to make in hardware 4477 */ 4478 static int 4479 ice_upd_prof_hw(struct ice_hw *hw, enum ice_block blk, 4480 struct list_head *chgs) 4481 { 4482 struct ice_buf_build *b; 4483 struct ice_chs_chg *tmp; 4484 u16 pkg_sects; 4485 u16 xlt1 = 0; 4486 u16 xlt2 = 0; 4487 u16 tcam = 0; 4488 u16 es = 0; 4489 int status; 4490 u16 sects; 4491 4492 /* count number of sections we need */ 4493 list_for_each_entry(tmp, chgs, list_entry) { 4494 switch (tmp->type) { 4495 case ICE_PTG_ES_ADD: 4496 if (tmp->add_ptg) 4497 xlt1++; 4498 if (tmp->add_prof) 4499 es++; 4500 break; 4501 case ICE_TCAM_ADD: 4502 tcam++; 4503 break; 4504 case ICE_VSIG_ADD: 4505 case ICE_VSI_MOVE: 4506 case ICE_VSIG_REM: 4507 xlt2++; 4508 break; 4509 default: 4510 break; 4511 } 4512 } 4513 sects = xlt1 + xlt2 + tcam + es; 4514 4515 if (!sects) 4516 return 0; 4517 4518 /* Build update package buffer */ 4519 b = ice_pkg_buf_alloc(hw); 4520 if (!b) 4521 return -ENOMEM; 4522 4523 status = ice_pkg_buf_reserve_section(b, sects); 4524 if (status) 4525 goto error_tmp; 4526 4527 /* Preserve order of table update: ES, TCAM, PTG, VSIG */ 4528 if (es) { 4529 status = ice_prof_bld_es(hw, blk, b, chgs); 4530 if (status) 4531 goto error_tmp; 4532 } 4533 4534 if (tcam) { 4535 status = ice_prof_bld_tcam(hw, blk, b, chgs); 4536 if (status) 4537 goto error_tmp; 4538 } 4539 4540 if (xlt1) { 4541 status = ice_prof_bld_xlt1(blk, b, chgs); 4542 if (status) 4543 goto error_tmp; 4544 } 4545 4546 if (xlt2) { 4547 status = ice_prof_bld_xlt2(blk, b, chgs); 4548 if (status) 4549 goto error_tmp; 4550 } 4551 4552 /* After package buffer build check if the section count in buffer is 4553 * non-zero and matches the number of sections detected for package 4554 * update. 4555 */ 4556 pkg_sects = ice_pkg_buf_get_active_sections(b); 4557 if (!pkg_sects || pkg_sects != sects) { 4558 status = -EINVAL; 4559 goto error_tmp; 4560 } 4561 4562 /* update package */ 4563 status = ice_update_pkg(hw, ice_pkg_buf(b), 1); 4564 if (status == -EIO) 4565 ice_debug(hw, ICE_DBG_INIT, "Unable to update HW profile\n"); 4566 4567 error_tmp: 4568 ice_pkg_buf_free(hw, b); 4569 return status; 4570 } 4571 4572 /** 4573 * ice_update_fd_mask - set Flow Director Field Vector mask for a profile 4574 * @hw: pointer to the HW struct 4575 * @prof_id: profile ID 4576 * @mask_sel: mask select 4577 * 4578 * This function enable any of the masks selected by the mask select parameter 4579 * for the profile specified. 4580 */ 4581 static void ice_update_fd_mask(struct ice_hw *hw, u16 prof_id, u32 mask_sel) 4582 { 4583 wr32(hw, GLQF_FDMASK_SEL(prof_id), mask_sel); 4584 4585 ice_debug(hw, ICE_DBG_INIT, "fd mask(%d): %x = %x\n", prof_id, 4586 GLQF_FDMASK_SEL(prof_id), mask_sel); 4587 } 4588 4589 struct ice_fd_src_dst_pair { 4590 u8 prot_id; 4591 u8 count; 4592 u16 off; 4593 }; 4594 4595 static const struct ice_fd_src_dst_pair ice_fd_pairs[] = { 4596 /* These are defined in pairs */ 4597 { ICE_PROT_IPV4_OF_OR_S, 2, 12 }, 4598 { ICE_PROT_IPV4_OF_OR_S, 2, 16 }, 4599 4600 { ICE_PROT_IPV4_IL, 2, 12 }, 4601 { ICE_PROT_IPV4_IL, 2, 16 }, 4602 4603 { ICE_PROT_IPV6_OF_OR_S, 8, 8 }, 4604 { ICE_PROT_IPV6_OF_OR_S, 8, 24 }, 4605 4606 { ICE_PROT_IPV6_IL, 8, 8 }, 4607 { ICE_PROT_IPV6_IL, 8, 24 }, 4608 4609 { ICE_PROT_TCP_IL, 1, 0 }, 4610 { ICE_PROT_TCP_IL, 1, 2 }, 4611 4612 { ICE_PROT_UDP_OF, 1, 0 }, 4613 { ICE_PROT_UDP_OF, 1, 2 }, 4614 4615 { ICE_PROT_UDP_IL_OR_S, 1, 0 }, 4616 { ICE_PROT_UDP_IL_OR_S, 1, 2 }, 4617 4618 { ICE_PROT_SCTP_IL, 1, 0 }, 4619 { ICE_PROT_SCTP_IL, 1, 2 } 4620 }; 4621 4622 #define ICE_FD_SRC_DST_PAIR_COUNT ARRAY_SIZE(ice_fd_pairs) 4623 4624 /** 4625 * ice_update_fd_swap - set register appropriately for a FD FV extraction 4626 * @hw: pointer to the HW struct 4627 * @prof_id: profile ID 4628 * @es: extraction sequence (length of array is determined by the block) 4629 */ 4630 static int 4631 ice_update_fd_swap(struct ice_hw *hw, u16 prof_id, struct ice_fv_word *es) 4632 { 4633 DECLARE_BITMAP(pair_list, ICE_FD_SRC_DST_PAIR_COUNT); 4634 u8 pair_start[ICE_FD_SRC_DST_PAIR_COUNT] = { 0 }; 4635 #define ICE_FD_FV_NOT_FOUND (-2) 4636 s8 first_free = ICE_FD_FV_NOT_FOUND; 4637 u8 used[ICE_MAX_FV_WORDS] = { 0 }; 4638 s8 orig_free, si; 4639 u32 mask_sel = 0; 4640 u8 i, j, k; 4641 4642 bitmap_zero(pair_list, ICE_FD_SRC_DST_PAIR_COUNT); 4643 4644 /* This code assumes that the Flow Director field vectors are assigned 4645 * from the end of the FV indexes working towards the zero index, that 4646 * only complete fields will be included and will be consecutive, and 4647 * that there are no gaps between valid indexes. 4648 */ 4649 4650 /* Determine swap fields present */ 4651 for (i = 0; i < hw->blk[ICE_BLK_FD].es.fvw; i++) { 4652 /* Find the first free entry, assuming right to left population. 4653 * This is where we can start adding additional pairs if needed. 4654 */ 4655 if (first_free == ICE_FD_FV_NOT_FOUND && es[i].prot_id != 4656 ICE_PROT_INVALID) 4657 first_free = i - 1; 4658 4659 for (j = 0; j < ICE_FD_SRC_DST_PAIR_COUNT; j++) 4660 if (es[i].prot_id == ice_fd_pairs[j].prot_id && 4661 es[i].off == ice_fd_pairs[j].off) { 4662 __set_bit(j, pair_list); 4663 pair_start[j] = i; 4664 } 4665 } 4666 4667 orig_free = first_free; 4668 4669 /* determine missing swap fields that need to be added */ 4670 for (i = 0; i < ICE_FD_SRC_DST_PAIR_COUNT; i += 2) { 4671 u8 bit1 = test_bit(i + 1, pair_list); 4672 u8 bit0 = test_bit(i, pair_list); 4673 4674 if (bit0 ^ bit1) { 4675 u8 index; 4676 4677 /* add the appropriate 'paired' entry */ 4678 if (!bit0) 4679 index = i; 4680 else 4681 index = i + 1; 4682 4683 /* check for room */ 4684 if (first_free + 1 < (s8)ice_fd_pairs[index].count) 4685 return -ENOSPC; 4686 4687 /* place in extraction sequence */ 4688 for (k = 0; k < ice_fd_pairs[index].count; k++) { 4689 es[first_free - k].prot_id = 4690 ice_fd_pairs[index].prot_id; 4691 es[first_free - k].off = 4692 ice_fd_pairs[index].off + (k * 2); 4693 4694 if (k > first_free) 4695 return -EIO; 4696 4697 /* keep track of non-relevant fields */ 4698 mask_sel |= BIT(first_free - k); 4699 } 4700 4701 pair_start[index] = first_free; 4702 first_free -= ice_fd_pairs[index].count; 4703 } 4704 } 4705 4706 /* fill in the swap array */ 4707 si = hw->blk[ICE_BLK_FD].es.fvw - 1; 4708 while (si >= 0) { 4709 u8 indexes_used = 1; 4710 4711 /* assume flat at this index */ 4712 #define ICE_SWAP_VALID 0x80 4713 used[si] = si | ICE_SWAP_VALID; 4714 4715 if (orig_free == ICE_FD_FV_NOT_FOUND || si <= orig_free) { 4716 si -= indexes_used; 4717 continue; 4718 } 4719 4720 /* check for a swap location */ 4721 for (j = 0; j < ICE_FD_SRC_DST_PAIR_COUNT; j++) 4722 if (es[si].prot_id == ice_fd_pairs[j].prot_id && 4723 es[si].off == ice_fd_pairs[j].off) { 4724 u8 idx; 4725 4726 /* determine the appropriate matching field */ 4727 idx = j + ((j % 2) ? -1 : 1); 4728 4729 indexes_used = ice_fd_pairs[idx].count; 4730 for (k = 0; k < indexes_used; k++) { 4731 used[si - k] = (pair_start[idx] - k) | 4732 ICE_SWAP_VALID; 4733 } 4734 4735 break; 4736 } 4737 4738 si -= indexes_used; 4739 } 4740 4741 /* for each set of 4 swap and 4 inset indexes, write the appropriate 4742 * register 4743 */ 4744 for (j = 0; j < hw->blk[ICE_BLK_FD].es.fvw / 4; j++) { 4745 u32 raw_swap = 0; 4746 u32 raw_in = 0; 4747 4748 for (k = 0; k < 4; k++) { 4749 u8 idx; 4750 4751 idx = (j * 4) + k; 4752 if (used[idx] && !(mask_sel & BIT(idx))) { 4753 raw_swap |= used[idx] << (k * BITS_PER_BYTE); 4754 #define ICE_INSET_DFLT 0x9f 4755 raw_in |= ICE_INSET_DFLT << (k * BITS_PER_BYTE); 4756 } 4757 } 4758 4759 /* write the appropriate swap register set */ 4760 wr32(hw, GLQF_FDSWAP(prof_id, j), raw_swap); 4761 4762 ice_debug(hw, ICE_DBG_INIT, "swap wr(%d, %d): %x = %08x\n", 4763 prof_id, j, GLQF_FDSWAP(prof_id, j), raw_swap); 4764 4765 /* write the appropriate inset register set */ 4766 wr32(hw, GLQF_FDINSET(prof_id, j), raw_in); 4767 4768 ice_debug(hw, ICE_DBG_INIT, "inset wr(%d, %d): %x = %08x\n", 4769 prof_id, j, GLQF_FDINSET(prof_id, j), raw_in); 4770 } 4771 4772 /* initially clear the mask select for this profile */ 4773 ice_update_fd_mask(hw, prof_id, 0); 4774 4775 return 0; 4776 } 4777 4778 /* The entries here needs to match the order of enum ice_ptype_attrib */ 4779 static const struct ice_ptype_attrib_info ice_ptype_attributes[] = { 4780 { ICE_GTP_PDU_EH, ICE_GTP_PDU_FLAG_MASK }, 4781 { ICE_GTP_SESSION, ICE_GTP_FLAGS_MASK }, 4782 { ICE_GTP_DOWNLINK, ICE_GTP_FLAGS_MASK }, 4783 { ICE_GTP_UPLINK, ICE_GTP_FLAGS_MASK }, 4784 }; 4785 4786 /** 4787 * ice_get_ptype_attrib_info - get PTYPE attribute information 4788 * @type: attribute type 4789 * @info: pointer to variable to the attribute information 4790 */ 4791 static void 4792 ice_get_ptype_attrib_info(enum ice_ptype_attrib_type type, 4793 struct ice_ptype_attrib_info *info) 4794 { 4795 *info = ice_ptype_attributes[type]; 4796 } 4797 4798 /** 4799 * ice_add_prof_attrib - add any PTG with attributes to profile 4800 * @prof: pointer to the profile to which PTG entries will be added 4801 * @ptg: PTG to be added 4802 * @ptype: PTYPE that needs to be looked up 4803 * @attr: array of attributes that will be considered 4804 * @attr_cnt: number of elements in the attribute array 4805 */ 4806 static int 4807 ice_add_prof_attrib(struct ice_prof_map *prof, u8 ptg, u16 ptype, 4808 const struct ice_ptype_attributes *attr, u16 attr_cnt) 4809 { 4810 bool found = false; 4811 u16 i; 4812 4813 for (i = 0; i < attr_cnt; i++) 4814 if (attr[i].ptype == ptype) { 4815 found = true; 4816 4817 prof->ptg[prof->ptg_cnt] = ptg; 4818 ice_get_ptype_attrib_info(attr[i].attrib, 4819 &prof->attr[prof->ptg_cnt]); 4820 4821 if (++prof->ptg_cnt >= ICE_MAX_PTG_PER_PROFILE) 4822 return -ENOSPC; 4823 } 4824 4825 if (!found) 4826 return -ENOENT; 4827 4828 return 0; 4829 } 4830 4831 /** 4832 * ice_add_prof - add profile 4833 * @hw: pointer to the HW struct 4834 * @blk: hardware block 4835 * @id: profile tracking ID 4836 * @ptypes: array of bitmaps indicating ptypes (ICE_FLOW_PTYPE_MAX bits) 4837 * @attr: array of attributes 4838 * @attr_cnt: number of elements in attr array 4839 * @es: extraction sequence (length of array is determined by the block) 4840 * @masks: mask for extraction sequence 4841 * 4842 * This function registers a profile, which matches a set of PTYPES with a 4843 * particular extraction sequence. While the hardware profile is allocated 4844 * it will not be written until the first call to ice_add_flow that specifies 4845 * the ID value used here. 4846 */ 4847 int 4848 ice_add_prof(struct ice_hw *hw, enum ice_block blk, u64 id, u8 ptypes[], 4849 const struct ice_ptype_attributes *attr, u16 attr_cnt, 4850 struct ice_fv_word *es, u16 *masks) 4851 { 4852 u32 bytes = DIV_ROUND_UP(ICE_FLOW_PTYPE_MAX, BITS_PER_BYTE); 4853 DECLARE_BITMAP(ptgs_used, ICE_XLT1_CNT); 4854 struct ice_prof_map *prof; 4855 u8 byte = 0; 4856 u8 prof_id; 4857 int status; 4858 4859 bitmap_zero(ptgs_used, ICE_XLT1_CNT); 4860 4861 mutex_lock(&hw->blk[blk].es.prof_map_lock); 4862 4863 /* search for existing profile */ 4864 status = ice_find_prof_id_with_mask(hw, blk, es, masks, &prof_id); 4865 if (status) { 4866 /* allocate profile ID */ 4867 status = ice_alloc_prof_id(hw, blk, &prof_id); 4868 if (status) 4869 goto err_ice_add_prof; 4870 if (blk == ICE_BLK_FD) { 4871 /* For Flow Director block, the extraction sequence may 4872 * need to be altered in the case where there are paired 4873 * fields that have no match. This is necessary because 4874 * for Flow Director, src and dest fields need to paired 4875 * for filter programming and these values are swapped 4876 * during Tx. 4877 */ 4878 status = ice_update_fd_swap(hw, prof_id, es); 4879 if (status) 4880 goto err_ice_add_prof; 4881 } 4882 status = ice_update_prof_masking(hw, blk, prof_id, masks); 4883 if (status) 4884 goto err_ice_add_prof; 4885 4886 /* and write new es */ 4887 ice_write_es(hw, blk, prof_id, es); 4888 } 4889 4890 ice_prof_inc_ref(hw, blk, prof_id); 4891 4892 /* add profile info */ 4893 prof = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*prof), GFP_KERNEL); 4894 if (!prof) { 4895 status = -ENOMEM; 4896 goto err_ice_add_prof; 4897 } 4898 4899 prof->profile_cookie = id; 4900 prof->prof_id = prof_id; 4901 prof->ptg_cnt = 0; 4902 prof->context = 0; 4903 4904 /* build list of ptgs */ 4905 while (bytes && prof->ptg_cnt < ICE_MAX_PTG_PER_PROFILE) { 4906 u8 bit; 4907 4908 if (!ptypes[byte]) { 4909 bytes--; 4910 byte++; 4911 continue; 4912 } 4913 4914 /* Examine 8 bits per byte */ 4915 for_each_set_bit(bit, (unsigned long *)&ptypes[byte], 4916 BITS_PER_BYTE) { 4917 u16 ptype; 4918 u8 ptg; 4919 4920 ptype = byte * BITS_PER_BYTE + bit; 4921 4922 /* The package should place all ptypes in a non-zero 4923 * PTG, so the following call should never fail. 4924 */ 4925 if (ice_ptg_find_ptype(hw, blk, ptype, &ptg)) 4926 continue; 4927 4928 /* If PTG is already added, skip and continue */ 4929 if (test_bit(ptg, ptgs_used)) 4930 continue; 4931 4932 __set_bit(ptg, ptgs_used); 4933 /* Check to see there are any attributes for 4934 * this PTYPE, and add them if found. 4935 */ 4936 status = ice_add_prof_attrib(prof, ptg, ptype, 4937 attr, attr_cnt); 4938 if (status == -ENOSPC) 4939 break; 4940 if (status) { 4941 /* This is simple a PTYPE/PTG with no 4942 * attribute 4943 */ 4944 prof->ptg[prof->ptg_cnt] = ptg; 4945 prof->attr[prof->ptg_cnt].flags = 0; 4946 prof->attr[prof->ptg_cnt].mask = 0; 4947 4948 if (++prof->ptg_cnt >= 4949 ICE_MAX_PTG_PER_PROFILE) 4950 break; 4951 } 4952 } 4953 4954 bytes--; 4955 byte++; 4956 } 4957 4958 list_add(&prof->list, &hw->blk[blk].es.prof_map); 4959 status = 0; 4960 4961 err_ice_add_prof: 4962 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 4963 return status; 4964 } 4965 4966 /** 4967 * ice_search_prof_id - Search for a profile tracking ID 4968 * @hw: pointer to the HW struct 4969 * @blk: hardware block 4970 * @id: profile tracking ID 4971 * 4972 * This will search for a profile tracking ID which was previously added. 4973 * The profile map lock should be held before calling this function. 4974 */ 4975 static struct ice_prof_map * 4976 ice_search_prof_id(struct ice_hw *hw, enum ice_block blk, u64 id) 4977 { 4978 struct ice_prof_map *entry = NULL; 4979 struct ice_prof_map *map; 4980 4981 list_for_each_entry(map, &hw->blk[blk].es.prof_map, list) 4982 if (map->profile_cookie == id) { 4983 entry = map; 4984 break; 4985 } 4986 4987 return entry; 4988 } 4989 4990 /** 4991 * ice_vsig_prof_id_count - count profiles in a VSIG 4992 * @hw: pointer to the HW struct 4993 * @blk: hardware block 4994 * @vsig: VSIG to remove the profile from 4995 */ 4996 static u16 4997 ice_vsig_prof_id_count(struct ice_hw *hw, enum ice_block blk, u16 vsig) 4998 { 4999 u16 idx = vsig & ICE_VSIG_IDX_M, count = 0; 5000 struct ice_vsig_prof *p; 5001 5002 list_for_each_entry(p, &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 5003 list) 5004 count++; 5005 5006 return count; 5007 } 5008 5009 /** 5010 * ice_rel_tcam_idx - release a TCAM index 5011 * @hw: pointer to the HW struct 5012 * @blk: hardware block 5013 * @idx: the index to release 5014 */ 5015 static int ice_rel_tcam_idx(struct ice_hw *hw, enum ice_block blk, u16 idx) 5016 { 5017 /* Masks to invoke a never match entry */ 5018 u8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; 5019 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFE, 0xFF, 0xFF, 0xFF, 0xFF }; 5020 u8 nm_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x01, 0x00, 0x00, 0x00, 0x00 }; 5021 int status; 5022 5023 /* write the TCAM entry */ 5024 status = ice_tcam_write_entry(hw, blk, idx, 0, 0, 0, 0, 0, vl_msk, 5025 dc_msk, nm_msk); 5026 if (status) 5027 return status; 5028 5029 /* release the TCAM entry */ 5030 status = ice_free_tcam_ent(hw, blk, idx); 5031 5032 return status; 5033 } 5034 5035 /** 5036 * ice_rem_prof_id - remove one profile from a VSIG 5037 * @hw: pointer to the HW struct 5038 * @blk: hardware block 5039 * @prof: pointer to profile structure to remove 5040 */ 5041 static int 5042 ice_rem_prof_id(struct ice_hw *hw, enum ice_block blk, 5043 struct ice_vsig_prof *prof) 5044 { 5045 int status; 5046 u16 i; 5047 5048 for (i = 0; i < prof->tcam_count; i++) 5049 if (prof->tcam[i].in_use) { 5050 prof->tcam[i].in_use = false; 5051 status = ice_rel_tcam_idx(hw, blk, 5052 prof->tcam[i].tcam_idx); 5053 if (status) 5054 return -EIO; 5055 } 5056 5057 return 0; 5058 } 5059 5060 /** 5061 * ice_rem_vsig - remove VSIG 5062 * @hw: pointer to the HW struct 5063 * @blk: hardware block 5064 * @vsig: the VSIG to remove 5065 * @chg: the change list 5066 */ 5067 static int 5068 ice_rem_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, 5069 struct list_head *chg) 5070 { 5071 u16 idx = vsig & ICE_VSIG_IDX_M; 5072 struct ice_vsig_vsi *vsi_cur; 5073 struct ice_vsig_prof *d, *t; 5074 int status; 5075 5076 /* remove TCAM entries */ 5077 list_for_each_entry_safe(d, t, 5078 &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 5079 list) { 5080 status = ice_rem_prof_id(hw, blk, d); 5081 if (status) 5082 return status; 5083 5084 list_del(&d->list); 5085 devm_kfree(ice_hw_to_dev(hw), d); 5086 } 5087 5088 /* Move all VSIS associated with this VSIG to the default VSIG */ 5089 vsi_cur = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 5090 /* If the VSIG has at least 1 VSI then iterate through the list 5091 * and remove the VSIs before deleting the group. 5092 */ 5093 if (vsi_cur) 5094 do { 5095 struct ice_vsig_vsi *tmp = vsi_cur->next_vsi; 5096 struct ice_chs_chg *p; 5097 5098 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), 5099 GFP_KERNEL); 5100 if (!p) 5101 return -ENOMEM; 5102 5103 p->type = ICE_VSIG_REM; 5104 p->orig_vsig = vsig; 5105 p->vsig = ICE_DEFAULT_VSIG; 5106 p->vsi = vsi_cur - hw->blk[blk].xlt2.vsis; 5107 5108 list_add(&p->list_entry, chg); 5109 5110 vsi_cur = tmp; 5111 } while (vsi_cur); 5112 5113 return ice_vsig_free(hw, blk, vsig); 5114 } 5115 5116 /** 5117 * ice_rem_prof_id_vsig - remove a specific profile from a VSIG 5118 * @hw: pointer to the HW struct 5119 * @blk: hardware block 5120 * @vsig: VSIG to remove the profile from 5121 * @hdl: profile handle indicating which profile to remove 5122 * @chg: list to receive a record of changes 5123 */ 5124 static int 5125 ice_rem_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl, 5126 struct list_head *chg) 5127 { 5128 u16 idx = vsig & ICE_VSIG_IDX_M; 5129 struct ice_vsig_prof *p, *t; 5130 int status; 5131 5132 list_for_each_entry_safe(p, t, 5133 &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 5134 list) 5135 if (p->profile_cookie == hdl) { 5136 if (ice_vsig_prof_id_count(hw, blk, vsig) == 1) 5137 /* this is the last profile, remove the VSIG */ 5138 return ice_rem_vsig(hw, blk, vsig, chg); 5139 5140 status = ice_rem_prof_id(hw, blk, p); 5141 if (!status) { 5142 list_del(&p->list); 5143 devm_kfree(ice_hw_to_dev(hw), p); 5144 } 5145 return status; 5146 } 5147 5148 return -ENOENT; 5149 } 5150 5151 /** 5152 * ice_rem_flow_all - remove all flows with a particular profile 5153 * @hw: pointer to the HW struct 5154 * @blk: hardware block 5155 * @id: profile tracking ID 5156 */ 5157 static int ice_rem_flow_all(struct ice_hw *hw, enum ice_block blk, u64 id) 5158 { 5159 struct ice_chs_chg *del, *tmp; 5160 struct list_head chg; 5161 int status; 5162 u16 i; 5163 5164 INIT_LIST_HEAD(&chg); 5165 5166 for (i = 1; i < ICE_MAX_VSIGS; i++) 5167 if (hw->blk[blk].xlt2.vsig_tbl[i].in_use) { 5168 if (ice_has_prof_vsig(hw, blk, i, id)) { 5169 status = ice_rem_prof_id_vsig(hw, blk, i, id, 5170 &chg); 5171 if (status) 5172 goto err_ice_rem_flow_all; 5173 } 5174 } 5175 5176 status = ice_upd_prof_hw(hw, blk, &chg); 5177 5178 err_ice_rem_flow_all: 5179 list_for_each_entry_safe(del, tmp, &chg, list_entry) { 5180 list_del(&del->list_entry); 5181 devm_kfree(ice_hw_to_dev(hw), del); 5182 } 5183 5184 return status; 5185 } 5186 5187 /** 5188 * ice_rem_prof - remove profile 5189 * @hw: pointer to the HW struct 5190 * @blk: hardware block 5191 * @id: profile tracking ID 5192 * 5193 * This will remove the profile specified by the ID parameter, which was 5194 * previously created through ice_add_prof. If any existing entries 5195 * are associated with this profile, they will be removed as well. 5196 */ 5197 int ice_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 id) 5198 { 5199 struct ice_prof_map *pmap; 5200 int status; 5201 5202 mutex_lock(&hw->blk[blk].es.prof_map_lock); 5203 5204 pmap = ice_search_prof_id(hw, blk, id); 5205 if (!pmap) { 5206 status = -ENOENT; 5207 goto err_ice_rem_prof; 5208 } 5209 5210 /* remove all flows with this profile */ 5211 status = ice_rem_flow_all(hw, blk, pmap->profile_cookie); 5212 if (status) 5213 goto err_ice_rem_prof; 5214 5215 /* dereference profile, and possibly remove */ 5216 ice_prof_dec_ref(hw, blk, pmap->prof_id); 5217 5218 list_del(&pmap->list); 5219 devm_kfree(ice_hw_to_dev(hw), pmap); 5220 5221 err_ice_rem_prof: 5222 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 5223 return status; 5224 } 5225 5226 /** 5227 * ice_get_prof - get profile 5228 * @hw: pointer to the HW struct 5229 * @blk: hardware block 5230 * @hdl: profile handle 5231 * @chg: change list 5232 */ 5233 static int 5234 ice_get_prof(struct ice_hw *hw, enum ice_block blk, u64 hdl, 5235 struct list_head *chg) 5236 { 5237 struct ice_prof_map *map; 5238 struct ice_chs_chg *p; 5239 int status = 0; 5240 u16 i; 5241 5242 mutex_lock(&hw->blk[blk].es.prof_map_lock); 5243 /* Get the details on the profile specified by the handle ID */ 5244 map = ice_search_prof_id(hw, blk, hdl); 5245 if (!map) { 5246 status = -ENOENT; 5247 goto err_ice_get_prof; 5248 } 5249 5250 for (i = 0; i < map->ptg_cnt; i++) 5251 if (!hw->blk[blk].es.written[map->prof_id]) { 5252 /* add ES to change list */ 5253 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), 5254 GFP_KERNEL); 5255 if (!p) { 5256 status = -ENOMEM; 5257 goto err_ice_get_prof; 5258 } 5259 5260 p->type = ICE_PTG_ES_ADD; 5261 p->ptype = 0; 5262 p->ptg = map->ptg[i]; 5263 p->add_ptg = 0; 5264 5265 p->add_prof = 1; 5266 p->prof_id = map->prof_id; 5267 5268 hw->blk[blk].es.written[map->prof_id] = true; 5269 5270 list_add(&p->list_entry, chg); 5271 } 5272 5273 err_ice_get_prof: 5274 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 5275 /* let caller clean up the change list */ 5276 return status; 5277 } 5278 5279 /** 5280 * ice_get_profs_vsig - get a copy of the list of profiles from a VSIG 5281 * @hw: pointer to the HW struct 5282 * @blk: hardware block 5283 * @vsig: VSIG from which to copy the list 5284 * @lst: output list 5285 * 5286 * This routine makes a copy of the list of profiles in the specified VSIG. 5287 */ 5288 static int 5289 ice_get_profs_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, 5290 struct list_head *lst) 5291 { 5292 struct ice_vsig_prof *ent1, *ent2; 5293 u16 idx = vsig & ICE_VSIG_IDX_M; 5294 5295 list_for_each_entry(ent1, &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 5296 list) { 5297 struct ice_vsig_prof *p; 5298 5299 /* copy to the input list */ 5300 p = devm_kmemdup(ice_hw_to_dev(hw), ent1, sizeof(*p), 5301 GFP_KERNEL); 5302 if (!p) 5303 goto err_ice_get_profs_vsig; 5304 5305 list_add_tail(&p->list, lst); 5306 } 5307 5308 return 0; 5309 5310 err_ice_get_profs_vsig: 5311 list_for_each_entry_safe(ent1, ent2, lst, list) { 5312 list_del(&ent1->list); 5313 devm_kfree(ice_hw_to_dev(hw), ent1); 5314 } 5315 5316 return -ENOMEM; 5317 } 5318 5319 /** 5320 * ice_add_prof_to_lst - add profile entry to a list 5321 * @hw: pointer to the HW struct 5322 * @blk: hardware block 5323 * @lst: the list to be added to 5324 * @hdl: profile handle of entry to add 5325 */ 5326 static int 5327 ice_add_prof_to_lst(struct ice_hw *hw, enum ice_block blk, 5328 struct list_head *lst, u64 hdl) 5329 { 5330 struct ice_prof_map *map; 5331 struct ice_vsig_prof *p; 5332 int status = 0; 5333 u16 i; 5334 5335 mutex_lock(&hw->blk[blk].es.prof_map_lock); 5336 map = ice_search_prof_id(hw, blk, hdl); 5337 if (!map) { 5338 status = -ENOENT; 5339 goto err_ice_add_prof_to_lst; 5340 } 5341 5342 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 5343 if (!p) { 5344 status = -ENOMEM; 5345 goto err_ice_add_prof_to_lst; 5346 } 5347 5348 p->profile_cookie = map->profile_cookie; 5349 p->prof_id = map->prof_id; 5350 p->tcam_count = map->ptg_cnt; 5351 5352 for (i = 0; i < map->ptg_cnt; i++) { 5353 p->tcam[i].prof_id = map->prof_id; 5354 p->tcam[i].tcam_idx = ICE_INVALID_TCAM; 5355 p->tcam[i].ptg = map->ptg[i]; 5356 } 5357 5358 list_add(&p->list, lst); 5359 5360 err_ice_add_prof_to_lst: 5361 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 5362 return status; 5363 } 5364 5365 /** 5366 * ice_move_vsi - move VSI to another VSIG 5367 * @hw: pointer to the HW struct 5368 * @blk: hardware block 5369 * @vsi: the VSI to move 5370 * @vsig: the VSIG to move the VSI to 5371 * @chg: the change list 5372 */ 5373 static int 5374 ice_move_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig, 5375 struct list_head *chg) 5376 { 5377 struct ice_chs_chg *p; 5378 u16 orig_vsig; 5379 int status; 5380 5381 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 5382 if (!p) 5383 return -ENOMEM; 5384 5385 status = ice_vsig_find_vsi(hw, blk, vsi, &orig_vsig); 5386 if (!status) 5387 status = ice_vsig_add_mv_vsi(hw, blk, vsi, vsig); 5388 5389 if (status) { 5390 devm_kfree(ice_hw_to_dev(hw), p); 5391 return status; 5392 } 5393 5394 p->type = ICE_VSI_MOVE; 5395 p->vsi = vsi; 5396 p->orig_vsig = orig_vsig; 5397 p->vsig = vsig; 5398 5399 list_add(&p->list_entry, chg); 5400 5401 return 0; 5402 } 5403 5404 /** 5405 * ice_rem_chg_tcam_ent - remove a specific TCAM entry from change list 5406 * @hw: pointer to the HW struct 5407 * @idx: the index of the TCAM entry to remove 5408 * @chg: the list of change structures to search 5409 */ 5410 static void 5411 ice_rem_chg_tcam_ent(struct ice_hw *hw, u16 idx, struct list_head *chg) 5412 { 5413 struct ice_chs_chg *pos, *tmp; 5414 5415 list_for_each_entry_safe(tmp, pos, chg, list_entry) 5416 if (tmp->type == ICE_TCAM_ADD && tmp->tcam_idx == idx) { 5417 list_del(&tmp->list_entry); 5418 devm_kfree(ice_hw_to_dev(hw), tmp); 5419 } 5420 } 5421 5422 /** 5423 * ice_prof_tcam_ena_dis - add enable or disable TCAM change 5424 * @hw: pointer to the HW struct 5425 * @blk: hardware block 5426 * @enable: true to enable, false to disable 5427 * @vsig: the VSIG of the TCAM entry 5428 * @tcam: pointer the TCAM info structure of the TCAM to disable 5429 * @chg: the change list 5430 * 5431 * This function appends an enable or disable TCAM entry in the change log 5432 */ 5433 static int 5434 ice_prof_tcam_ena_dis(struct ice_hw *hw, enum ice_block blk, bool enable, 5435 u16 vsig, struct ice_tcam_inf *tcam, 5436 struct list_head *chg) 5437 { 5438 struct ice_chs_chg *p; 5439 int status; 5440 5441 u8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; 5442 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0x00, 0x00, 0x00 }; 5443 u8 nm_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x00, 0x00, 0x00, 0x00, 0x00 }; 5444 5445 /* if disabling, free the TCAM */ 5446 if (!enable) { 5447 status = ice_rel_tcam_idx(hw, blk, tcam->tcam_idx); 5448 5449 /* if we have already created a change for this TCAM entry, then 5450 * we need to remove that entry, in order to prevent writing to 5451 * a TCAM entry we no longer will have ownership of. 5452 */ 5453 ice_rem_chg_tcam_ent(hw, tcam->tcam_idx, chg); 5454 tcam->tcam_idx = 0; 5455 tcam->in_use = 0; 5456 return status; 5457 } 5458 5459 /* for re-enabling, reallocate a TCAM */ 5460 /* for entries with empty attribute masks, allocate entry from 5461 * the bottom of the TCAM table; otherwise, allocate from the 5462 * top of the table in order to give it higher priority 5463 */ 5464 status = ice_alloc_tcam_ent(hw, blk, tcam->attr.mask == 0, 5465 &tcam->tcam_idx); 5466 if (status) 5467 return status; 5468 5469 /* add TCAM to change list */ 5470 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 5471 if (!p) 5472 return -ENOMEM; 5473 5474 status = ice_tcam_write_entry(hw, blk, tcam->tcam_idx, tcam->prof_id, 5475 tcam->ptg, vsig, 0, tcam->attr.flags, 5476 vl_msk, dc_msk, nm_msk); 5477 if (status) 5478 goto err_ice_prof_tcam_ena_dis; 5479 5480 tcam->in_use = 1; 5481 5482 p->type = ICE_TCAM_ADD; 5483 p->add_tcam_idx = true; 5484 p->prof_id = tcam->prof_id; 5485 p->ptg = tcam->ptg; 5486 p->vsig = 0; 5487 p->tcam_idx = tcam->tcam_idx; 5488 5489 /* log change */ 5490 list_add(&p->list_entry, chg); 5491 5492 return 0; 5493 5494 err_ice_prof_tcam_ena_dis: 5495 devm_kfree(ice_hw_to_dev(hw), p); 5496 return status; 5497 } 5498 5499 /** 5500 * ice_adj_prof_priorities - adjust profile based on priorities 5501 * @hw: pointer to the HW struct 5502 * @blk: hardware block 5503 * @vsig: the VSIG for which to adjust profile priorities 5504 * @chg: the change list 5505 */ 5506 static int 5507 ice_adj_prof_priorities(struct ice_hw *hw, enum ice_block blk, u16 vsig, 5508 struct list_head *chg) 5509 { 5510 DECLARE_BITMAP(ptgs_used, ICE_XLT1_CNT); 5511 struct ice_vsig_prof *t; 5512 int status; 5513 u16 idx; 5514 5515 bitmap_zero(ptgs_used, ICE_XLT1_CNT); 5516 idx = vsig & ICE_VSIG_IDX_M; 5517 5518 /* Priority is based on the order in which the profiles are added. The 5519 * newest added profile has highest priority and the oldest added 5520 * profile has the lowest priority. Since the profile property list for 5521 * a VSIG is sorted from newest to oldest, this code traverses the list 5522 * in order and enables the first of each PTG that it finds (that is not 5523 * already enabled); it also disables any duplicate PTGs that it finds 5524 * in the older profiles (that are currently enabled). 5525 */ 5526 5527 list_for_each_entry(t, &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 5528 list) { 5529 u16 i; 5530 5531 for (i = 0; i < t->tcam_count; i++) { 5532 /* Scan the priorities from newest to oldest. 5533 * Make sure that the newest profiles take priority. 5534 */ 5535 if (test_bit(t->tcam[i].ptg, ptgs_used) && 5536 t->tcam[i].in_use) { 5537 /* need to mark this PTG as never match, as it 5538 * was already in use and therefore duplicate 5539 * (and lower priority) 5540 */ 5541 status = ice_prof_tcam_ena_dis(hw, blk, false, 5542 vsig, 5543 &t->tcam[i], 5544 chg); 5545 if (status) 5546 return status; 5547 } else if (!test_bit(t->tcam[i].ptg, ptgs_used) && 5548 !t->tcam[i].in_use) { 5549 /* need to enable this PTG, as it in not in use 5550 * and not enabled (highest priority) 5551 */ 5552 status = ice_prof_tcam_ena_dis(hw, blk, true, 5553 vsig, 5554 &t->tcam[i], 5555 chg); 5556 if (status) 5557 return status; 5558 } 5559 5560 /* keep track of used ptgs */ 5561 __set_bit(t->tcam[i].ptg, ptgs_used); 5562 } 5563 } 5564 5565 return 0; 5566 } 5567 5568 /** 5569 * ice_add_prof_id_vsig - add profile to VSIG 5570 * @hw: pointer to the HW struct 5571 * @blk: hardware block 5572 * @vsig: the VSIG to which this profile is to be added 5573 * @hdl: the profile handle indicating the profile to add 5574 * @rev: true to add entries to the end of the list 5575 * @chg: the change list 5576 */ 5577 static int 5578 ice_add_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl, 5579 bool rev, struct list_head *chg) 5580 { 5581 /* Masks that ignore flags */ 5582 u8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; 5583 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0x00, 0x00, 0x00 }; 5584 u8 nm_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x00, 0x00, 0x00, 0x00, 0x00 }; 5585 struct ice_prof_map *map; 5586 struct ice_vsig_prof *t; 5587 struct ice_chs_chg *p; 5588 u16 vsig_idx, i; 5589 int status = 0; 5590 5591 /* Error, if this VSIG already has this profile */ 5592 if (ice_has_prof_vsig(hw, blk, vsig, hdl)) 5593 return -EEXIST; 5594 5595 /* new VSIG profile structure */ 5596 t = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*t), GFP_KERNEL); 5597 if (!t) 5598 return -ENOMEM; 5599 5600 mutex_lock(&hw->blk[blk].es.prof_map_lock); 5601 /* Get the details on the profile specified by the handle ID */ 5602 map = ice_search_prof_id(hw, blk, hdl); 5603 if (!map) { 5604 status = -ENOENT; 5605 goto err_ice_add_prof_id_vsig; 5606 } 5607 5608 t->profile_cookie = map->profile_cookie; 5609 t->prof_id = map->prof_id; 5610 t->tcam_count = map->ptg_cnt; 5611 5612 /* create TCAM entries */ 5613 for (i = 0; i < map->ptg_cnt; i++) { 5614 u16 tcam_idx; 5615 5616 /* add TCAM to change list */ 5617 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 5618 if (!p) { 5619 status = -ENOMEM; 5620 goto err_ice_add_prof_id_vsig; 5621 } 5622 5623 /* allocate the TCAM entry index */ 5624 /* for entries with empty attribute masks, allocate entry from 5625 * the bottom of the TCAM table; otherwise, allocate from the 5626 * top of the table in order to give it higher priority 5627 */ 5628 status = ice_alloc_tcam_ent(hw, blk, map->attr[i].mask == 0, 5629 &tcam_idx); 5630 if (status) { 5631 devm_kfree(ice_hw_to_dev(hw), p); 5632 goto err_ice_add_prof_id_vsig; 5633 } 5634 5635 t->tcam[i].ptg = map->ptg[i]; 5636 t->tcam[i].prof_id = map->prof_id; 5637 t->tcam[i].tcam_idx = tcam_idx; 5638 t->tcam[i].attr = map->attr[i]; 5639 t->tcam[i].in_use = true; 5640 5641 p->type = ICE_TCAM_ADD; 5642 p->add_tcam_idx = true; 5643 p->prof_id = t->tcam[i].prof_id; 5644 p->ptg = t->tcam[i].ptg; 5645 p->vsig = vsig; 5646 p->tcam_idx = t->tcam[i].tcam_idx; 5647 5648 /* write the TCAM entry */ 5649 status = ice_tcam_write_entry(hw, blk, t->tcam[i].tcam_idx, 5650 t->tcam[i].prof_id, 5651 t->tcam[i].ptg, vsig, 0, 0, 5652 vl_msk, dc_msk, nm_msk); 5653 if (status) { 5654 devm_kfree(ice_hw_to_dev(hw), p); 5655 goto err_ice_add_prof_id_vsig; 5656 } 5657 5658 /* log change */ 5659 list_add(&p->list_entry, chg); 5660 } 5661 5662 /* add profile to VSIG */ 5663 vsig_idx = vsig & ICE_VSIG_IDX_M; 5664 if (rev) 5665 list_add_tail(&t->list, 5666 &hw->blk[blk].xlt2.vsig_tbl[vsig_idx].prop_lst); 5667 else 5668 list_add(&t->list, 5669 &hw->blk[blk].xlt2.vsig_tbl[vsig_idx].prop_lst); 5670 5671 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 5672 return status; 5673 5674 err_ice_add_prof_id_vsig: 5675 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 5676 /* let caller clean up the change list */ 5677 devm_kfree(ice_hw_to_dev(hw), t); 5678 return status; 5679 } 5680 5681 /** 5682 * ice_create_prof_id_vsig - add a new VSIG with a single profile 5683 * @hw: pointer to the HW struct 5684 * @blk: hardware block 5685 * @vsi: the initial VSI that will be in VSIG 5686 * @hdl: the profile handle of the profile that will be added to the VSIG 5687 * @chg: the change list 5688 */ 5689 static int 5690 ice_create_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl, 5691 struct list_head *chg) 5692 { 5693 struct ice_chs_chg *p; 5694 u16 new_vsig; 5695 int status; 5696 5697 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 5698 if (!p) 5699 return -ENOMEM; 5700 5701 new_vsig = ice_vsig_alloc(hw, blk); 5702 if (!new_vsig) { 5703 status = -EIO; 5704 goto err_ice_create_prof_id_vsig; 5705 } 5706 5707 status = ice_move_vsi(hw, blk, vsi, new_vsig, chg); 5708 if (status) 5709 goto err_ice_create_prof_id_vsig; 5710 5711 status = ice_add_prof_id_vsig(hw, blk, new_vsig, hdl, false, chg); 5712 if (status) 5713 goto err_ice_create_prof_id_vsig; 5714 5715 p->type = ICE_VSIG_ADD; 5716 p->vsi = vsi; 5717 p->orig_vsig = ICE_DEFAULT_VSIG; 5718 p->vsig = new_vsig; 5719 5720 list_add(&p->list_entry, chg); 5721 5722 return 0; 5723 5724 err_ice_create_prof_id_vsig: 5725 /* let caller clean up the change list */ 5726 devm_kfree(ice_hw_to_dev(hw), p); 5727 return status; 5728 } 5729 5730 /** 5731 * ice_create_vsig_from_lst - create a new VSIG with a list of profiles 5732 * @hw: pointer to the HW struct 5733 * @blk: hardware block 5734 * @vsi: the initial VSI that will be in VSIG 5735 * @lst: the list of profile that will be added to the VSIG 5736 * @new_vsig: return of new VSIG 5737 * @chg: the change list 5738 */ 5739 static int 5740 ice_create_vsig_from_lst(struct ice_hw *hw, enum ice_block blk, u16 vsi, 5741 struct list_head *lst, u16 *new_vsig, 5742 struct list_head *chg) 5743 { 5744 struct ice_vsig_prof *t; 5745 int status; 5746 u16 vsig; 5747 5748 vsig = ice_vsig_alloc(hw, blk); 5749 if (!vsig) 5750 return -EIO; 5751 5752 status = ice_move_vsi(hw, blk, vsi, vsig, chg); 5753 if (status) 5754 return status; 5755 5756 list_for_each_entry(t, lst, list) { 5757 /* Reverse the order here since we are copying the list */ 5758 status = ice_add_prof_id_vsig(hw, blk, vsig, t->profile_cookie, 5759 true, chg); 5760 if (status) 5761 return status; 5762 } 5763 5764 *new_vsig = vsig; 5765 5766 return 0; 5767 } 5768 5769 /** 5770 * ice_find_prof_vsig - find a VSIG with a specific profile handle 5771 * @hw: pointer to the HW struct 5772 * @blk: hardware block 5773 * @hdl: the profile handle of the profile to search for 5774 * @vsig: returns the VSIG with the matching profile 5775 */ 5776 static bool 5777 ice_find_prof_vsig(struct ice_hw *hw, enum ice_block blk, u64 hdl, u16 *vsig) 5778 { 5779 struct ice_vsig_prof *t; 5780 struct list_head lst; 5781 int status; 5782 5783 INIT_LIST_HEAD(&lst); 5784 5785 t = kzalloc(sizeof(*t), GFP_KERNEL); 5786 if (!t) 5787 return false; 5788 5789 t->profile_cookie = hdl; 5790 list_add(&t->list, &lst); 5791 5792 status = ice_find_dup_props_vsig(hw, blk, &lst, vsig); 5793 5794 list_del(&t->list); 5795 kfree(t); 5796 5797 return !status; 5798 } 5799 5800 /** 5801 * ice_add_prof_id_flow - add profile flow 5802 * @hw: pointer to the HW struct 5803 * @blk: hardware block 5804 * @vsi: the VSI to enable with the profile specified by ID 5805 * @hdl: profile handle 5806 * 5807 * Calling this function will update the hardware tables to enable the 5808 * profile indicated by the ID parameter for the VSIs specified in the VSI 5809 * array. Once successfully called, the flow will be enabled. 5810 */ 5811 int 5812 ice_add_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl) 5813 { 5814 struct ice_vsig_prof *tmp1, *del1; 5815 struct ice_chs_chg *tmp, *del; 5816 struct list_head union_lst; 5817 struct list_head chg; 5818 int status; 5819 u16 vsig; 5820 5821 INIT_LIST_HEAD(&union_lst); 5822 INIT_LIST_HEAD(&chg); 5823 5824 /* Get profile */ 5825 status = ice_get_prof(hw, blk, hdl, &chg); 5826 if (status) 5827 return status; 5828 5829 /* determine if VSI is already part of a VSIG */ 5830 status = ice_vsig_find_vsi(hw, blk, vsi, &vsig); 5831 if (!status && vsig) { 5832 bool only_vsi; 5833 u16 or_vsig; 5834 u16 ref; 5835 5836 /* found in VSIG */ 5837 or_vsig = vsig; 5838 5839 /* make sure that there is no overlap/conflict between the new 5840 * characteristics and the existing ones; we don't support that 5841 * scenario 5842 */ 5843 if (ice_has_prof_vsig(hw, blk, vsig, hdl)) { 5844 status = -EEXIST; 5845 goto err_ice_add_prof_id_flow; 5846 } 5847 5848 /* last VSI in the VSIG? */ 5849 status = ice_vsig_get_ref(hw, blk, vsig, &ref); 5850 if (status) 5851 goto err_ice_add_prof_id_flow; 5852 only_vsi = (ref == 1); 5853 5854 /* create a union of the current profiles and the one being 5855 * added 5856 */ 5857 status = ice_get_profs_vsig(hw, blk, vsig, &union_lst); 5858 if (status) 5859 goto err_ice_add_prof_id_flow; 5860 5861 status = ice_add_prof_to_lst(hw, blk, &union_lst, hdl); 5862 if (status) 5863 goto err_ice_add_prof_id_flow; 5864 5865 /* search for an existing VSIG with an exact charc match */ 5866 status = ice_find_dup_props_vsig(hw, blk, &union_lst, &vsig); 5867 if (!status) { 5868 /* move VSI to the VSIG that matches */ 5869 status = ice_move_vsi(hw, blk, vsi, vsig, &chg); 5870 if (status) 5871 goto err_ice_add_prof_id_flow; 5872 5873 /* VSI has been moved out of or_vsig. If the or_vsig had 5874 * only that VSI it is now empty and can be removed. 5875 */ 5876 if (only_vsi) { 5877 status = ice_rem_vsig(hw, blk, or_vsig, &chg); 5878 if (status) 5879 goto err_ice_add_prof_id_flow; 5880 } 5881 } else if (only_vsi) { 5882 /* If the original VSIG only contains one VSI, then it 5883 * will be the requesting VSI. In this case the VSI is 5884 * not sharing entries and we can simply add the new 5885 * profile to the VSIG. 5886 */ 5887 status = ice_add_prof_id_vsig(hw, blk, vsig, hdl, false, 5888 &chg); 5889 if (status) 5890 goto err_ice_add_prof_id_flow; 5891 5892 /* Adjust priorities */ 5893 status = ice_adj_prof_priorities(hw, blk, vsig, &chg); 5894 if (status) 5895 goto err_ice_add_prof_id_flow; 5896 } else { 5897 /* No match, so we need a new VSIG */ 5898 status = ice_create_vsig_from_lst(hw, blk, vsi, 5899 &union_lst, &vsig, 5900 &chg); 5901 if (status) 5902 goto err_ice_add_prof_id_flow; 5903 5904 /* Adjust priorities */ 5905 status = ice_adj_prof_priorities(hw, blk, vsig, &chg); 5906 if (status) 5907 goto err_ice_add_prof_id_flow; 5908 } 5909 } else { 5910 /* need to find or add a VSIG */ 5911 /* search for an existing VSIG with an exact charc match */ 5912 if (ice_find_prof_vsig(hw, blk, hdl, &vsig)) { 5913 /* found an exact match */ 5914 /* add or move VSI to the VSIG that matches */ 5915 status = ice_move_vsi(hw, blk, vsi, vsig, &chg); 5916 if (status) 5917 goto err_ice_add_prof_id_flow; 5918 } else { 5919 /* we did not find an exact match */ 5920 /* we need to add a VSIG */ 5921 status = ice_create_prof_id_vsig(hw, blk, vsi, hdl, 5922 &chg); 5923 if (status) 5924 goto err_ice_add_prof_id_flow; 5925 } 5926 } 5927 5928 /* update hardware */ 5929 if (!status) 5930 status = ice_upd_prof_hw(hw, blk, &chg); 5931 5932 err_ice_add_prof_id_flow: 5933 list_for_each_entry_safe(del, tmp, &chg, list_entry) { 5934 list_del(&del->list_entry); 5935 devm_kfree(ice_hw_to_dev(hw), del); 5936 } 5937 5938 list_for_each_entry_safe(del1, tmp1, &union_lst, list) { 5939 list_del(&del1->list); 5940 devm_kfree(ice_hw_to_dev(hw), del1); 5941 } 5942 5943 return status; 5944 } 5945 5946 /** 5947 * ice_rem_prof_from_list - remove a profile from list 5948 * @hw: pointer to the HW struct 5949 * @lst: list to remove the profile from 5950 * @hdl: the profile handle indicating the profile to remove 5951 */ 5952 static int 5953 ice_rem_prof_from_list(struct ice_hw *hw, struct list_head *lst, u64 hdl) 5954 { 5955 struct ice_vsig_prof *ent, *tmp; 5956 5957 list_for_each_entry_safe(ent, tmp, lst, list) 5958 if (ent->profile_cookie == hdl) { 5959 list_del(&ent->list); 5960 devm_kfree(ice_hw_to_dev(hw), ent); 5961 return 0; 5962 } 5963 5964 return -ENOENT; 5965 } 5966 5967 /** 5968 * ice_rem_prof_id_flow - remove flow 5969 * @hw: pointer to the HW struct 5970 * @blk: hardware block 5971 * @vsi: the VSI from which to remove the profile specified by ID 5972 * @hdl: profile tracking handle 5973 * 5974 * Calling this function will update the hardware tables to remove the 5975 * profile indicated by the ID parameter for the VSIs specified in the VSI 5976 * array. Once successfully called, the flow will be disabled. 5977 */ 5978 int 5979 ice_rem_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl) 5980 { 5981 struct ice_vsig_prof *tmp1, *del1; 5982 struct ice_chs_chg *tmp, *del; 5983 struct list_head chg, copy; 5984 int status; 5985 u16 vsig; 5986 5987 INIT_LIST_HEAD(©); 5988 INIT_LIST_HEAD(&chg); 5989 5990 /* determine if VSI is already part of a VSIG */ 5991 status = ice_vsig_find_vsi(hw, blk, vsi, &vsig); 5992 if (!status && vsig) { 5993 bool last_profile; 5994 bool only_vsi; 5995 u16 ref; 5996 5997 /* found in VSIG */ 5998 last_profile = ice_vsig_prof_id_count(hw, blk, vsig) == 1; 5999 status = ice_vsig_get_ref(hw, blk, vsig, &ref); 6000 if (status) 6001 goto err_ice_rem_prof_id_flow; 6002 only_vsi = (ref == 1); 6003 6004 if (only_vsi) { 6005 /* If the original VSIG only contains one reference, 6006 * which will be the requesting VSI, then the VSI is not 6007 * sharing entries and we can simply remove the specific 6008 * characteristics from the VSIG. 6009 */ 6010 6011 if (last_profile) { 6012 /* If there are no profiles left for this VSIG, 6013 * then simply remove the VSIG. 6014 */ 6015 status = ice_rem_vsig(hw, blk, vsig, &chg); 6016 if (status) 6017 goto err_ice_rem_prof_id_flow; 6018 } else { 6019 status = ice_rem_prof_id_vsig(hw, blk, vsig, 6020 hdl, &chg); 6021 if (status) 6022 goto err_ice_rem_prof_id_flow; 6023 6024 /* Adjust priorities */ 6025 status = ice_adj_prof_priorities(hw, blk, vsig, 6026 &chg); 6027 if (status) 6028 goto err_ice_rem_prof_id_flow; 6029 } 6030 6031 } else { 6032 /* Make a copy of the VSIG's list of Profiles */ 6033 status = ice_get_profs_vsig(hw, blk, vsig, ©); 6034 if (status) 6035 goto err_ice_rem_prof_id_flow; 6036 6037 /* Remove specified profile entry from the list */ 6038 status = ice_rem_prof_from_list(hw, ©, hdl); 6039 if (status) 6040 goto err_ice_rem_prof_id_flow; 6041 6042 if (list_empty(©)) { 6043 status = ice_move_vsi(hw, blk, vsi, 6044 ICE_DEFAULT_VSIG, &chg); 6045 if (status) 6046 goto err_ice_rem_prof_id_flow; 6047 6048 } else if (!ice_find_dup_props_vsig(hw, blk, ©, 6049 &vsig)) { 6050 /* found an exact match */ 6051 /* add or move VSI to the VSIG that matches */ 6052 /* Search for a VSIG with a matching profile 6053 * list 6054 */ 6055 6056 /* Found match, move VSI to the matching VSIG */ 6057 status = ice_move_vsi(hw, blk, vsi, vsig, &chg); 6058 if (status) 6059 goto err_ice_rem_prof_id_flow; 6060 } else { 6061 /* since no existing VSIG supports this 6062 * characteristic pattern, we need to create a 6063 * new VSIG and TCAM entries 6064 */ 6065 status = ice_create_vsig_from_lst(hw, blk, vsi, 6066 ©, &vsig, 6067 &chg); 6068 if (status) 6069 goto err_ice_rem_prof_id_flow; 6070 6071 /* Adjust priorities */ 6072 status = ice_adj_prof_priorities(hw, blk, vsig, 6073 &chg); 6074 if (status) 6075 goto err_ice_rem_prof_id_flow; 6076 } 6077 } 6078 } else { 6079 status = -ENOENT; 6080 } 6081 6082 /* update hardware tables */ 6083 if (!status) 6084 status = ice_upd_prof_hw(hw, blk, &chg); 6085 6086 err_ice_rem_prof_id_flow: 6087 list_for_each_entry_safe(del, tmp, &chg, list_entry) { 6088 list_del(&del->list_entry); 6089 devm_kfree(ice_hw_to_dev(hw), del); 6090 } 6091 6092 list_for_each_entry_safe(del1, tmp1, ©, list) { 6093 list_del(&del1->list); 6094 devm_kfree(ice_hw_to_dev(hw), del1); 6095 } 6096 6097 return status; 6098 } 6099