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