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 #include "ice.h" 8 9 static const u32 ice_sect_lkup[ICE_BLK_COUNT][ICE_SECT_COUNT] = { 10 /* SWITCH */ 11 { 12 ICE_SID_XLT0_SW, 13 ICE_SID_XLT_KEY_BUILDER_SW, 14 ICE_SID_XLT1_SW, 15 ICE_SID_XLT2_SW, 16 ICE_SID_PROFID_TCAM_SW, 17 ICE_SID_PROFID_REDIR_SW, 18 ICE_SID_FLD_VEC_SW, 19 ICE_SID_CDID_KEY_BUILDER_SW, 20 ICE_SID_CDID_REDIR_SW 21 }, 22 23 /* ACL */ 24 { 25 ICE_SID_XLT0_ACL, 26 ICE_SID_XLT_KEY_BUILDER_ACL, 27 ICE_SID_XLT1_ACL, 28 ICE_SID_XLT2_ACL, 29 ICE_SID_PROFID_TCAM_ACL, 30 ICE_SID_PROFID_REDIR_ACL, 31 ICE_SID_FLD_VEC_ACL, 32 ICE_SID_CDID_KEY_BUILDER_ACL, 33 ICE_SID_CDID_REDIR_ACL 34 }, 35 36 /* FD */ 37 { 38 ICE_SID_XLT0_FD, 39 ICE_SID_XLT_KEY_BUILDER_FD, 40 ICE_SID_XLT1_FD, 41 ICE_SID_XLT2_FD, 42 ICE_SID_PROFID_TCAM_FD, 43 ICE_SID_PROFID_REDIR_FD, 44 ICE_SID_FLD_VEC_FD, 45 ICE_SID_CDID_KEY_BUILDER_FD, 46 ICE_SID_CDID_REDIR_FD 47 }, 48 49 /* RSS */ 50 { 51 ICE_SID_XLT0_RSS, 52 ICE_SID_XLT_KEY_BUILDER_RSS, 53 ICE_SID_XLT1_RSS, 54 ICE_SID_XLT2_RSS, 55 ICE_SID_PROFID_TCAM_RSS, 56 ICE_SID_PROFID_REDIR_RSS, 57 ICE_SID_FLD_VEC_RSS, 58 ICE_SID_CDID_KEY_BUILDER_RSS, 59 ICE_SID_CDID_REDIR_RSS 60 }, 61 62 /* PE */ 63 { 64 ICE_SID_XLT0_PE, 65 ICE_SID_XLT_KEY_BUILDER_PE, 66 ICE_SID_XLT1_PE, 67 ICE_SID_XLT2_PE, 68 ICE_SID_PROFID_TCAM_PE, 69 ICE_SID_PROFID_REDIR_PE, 70 ICE_SID_FLD_VEC_PE, 71 ICE_SID_CDID_KEY_BUILDER_PE, 72 ICE_SID_CDID_REDIR_PE 73 } 74 }; 75 76 /** 77 * ice_sect_id - returns section ID 78 * @blk: block type 79 * @sect: section type 80 * 81 * This helper function returns the proper section ID given a block type and a 82 * section type. 83 */ 84 static u32 ice_sect_id(enum ice_block blk, enum ice_sect sect) 85 { 86 return ice_sect_lkup[blk][sect]; 87 } 88 89 /** 90 * ice_hw_ptype_ena - check if the PTYPE is enabled or not 91 * @hw: pointer to the HW structure 92 * @ptype: the hardware PTYPE 93 */ 94 bool ice_hw_ptype_ena(struct ice_hw *hw, u16 ptype) 95 { 96 return ptype < ICE_FLOW_PTYPE_MAX && 97 test_bit(ptype, hw->hw_ptype); 98 } 99 100 /* Key creation */ 101 102 #define ICE_DC_KEY 0x1 /* don't care */ 103 #define ICE_DC_KEYINV 0x1 104 #define ICE_NM_KEY 0x0 /* never match */ 105 #define ICE_NM_KEYINV 0x0 106 #define ICE_0_KEY 0x1 /* match 0 */ 107 #define ICE_0_KEYINV 0x0 108 #define ICE_1_KEY 0x0 /* match 1 */ 109 #define ICE_1_KEYINV 0x1 110 111 /** 112 * ice_gen_key_word - generate 16-bits of a key/mask word 113 * @val: the value 114 * @valid: valid bits mask (change only the valid bits) 115 * @dont_care: don't care mask 116 * @nvr_mtch: never match mask 117 * @key: pointer to an array of where the resulting key portion 118 * @key_inv: pointer to an array of where the resulting key invert portion 119 * 120 * This function generates 16-bits from a 8-bit value, an 8-bit don't care mask 121 * and an 8-bit never match mask. The 16-bits of output are divided into 8 bits 122 * of key and 8 bits of key invert. 123 * 124 * '0' = b01, always match a 0 bit 125 * '1' = b10, always match a 1 bit 126 * '?' = b11, don't care bit (always matches) 127 * '~' = b00, never match bit 128 * 129 * Input: 130 * val: b0 1 0 1 0 1 131 * dont_care: b0 0 1 1 0 0 132 * never_mtch: b0 0 0 0 1 1 133 * ------------------------------ 134 * Result: key: b01 10 11 11 00 00 135 */ 136 static int 137 ice_gen_key_word(u8 val, u8 valid, u8 dont_care, u8 nvr_mtch, u8 *key, 138 u8 *key_inv) 139 { 140 u8 in_key = *key, in_key_inv = *key_inv; 141 u8 i; 142 143 /* 'dont_care' and 'nvr_mtch' masks cannot overlap */ 144 if ((dont_care ^ nvr_mtch) != (dont_care | nvr_mtch)) 145 return -EIO; 146 147 *key = 0; 148 *key_inv = 0; 149 150 /* encode the 8 bits into 8-bit key and 8-bit key invert */ 151 for (i = 0; i < 8; i++) { 152 *key >>= 1; 153 *key_inv >>= 1; 154 155 if (!(valid & 0x1)) { /* change only valid bits */ 156 *key |= (in_key & 0x1) << 7; 157 *key_inv |= (in_key_inv & 0x1) << 7; 158 } else if (dont_care & 0x1) { /* don't care bit */ 159 *key |= ICE_DC_KEY << 7; 160 *key_inv |= ICE_DC_KEYINV << 7; 161 } else if (nvr_mtch & 0x1) { /* never match bit */ 162 *key |= ICE_NM_KEY << 7; 163 *key_inv |= ICE_NM_KEYINV << 7; 164 } else if (val & 0x01) { /* exact 1 match */ 165 *key |= ICE_1_KEY << 7; 166 *key_inv |= ICE_1_KEYINV << 7; 167 } else { /* exact 0 match */ 168 *key |= ICE_0_KEY << 7; 169 *key_inv |= ICE_0_KEYINV << 7; 170 } 171 172 dont_care >>= 1; 173 nvr_mtch >>= 1; 174 valid >>= 1; 175 val >>= 1; 176 in_key >>= 1; 177 in_key_inv >>= 1; 178 } 179 180 return 0; 181 } 182 183 /** 184 * ice_bits_max_set - determine if the number of bits set is within a maximum 185 * @mask: pointer to the byte array which is the mask 186 * @size: the number of bytes in the mask 187 * @max: the max number of set bits 188 * 189 * This function determines if there are at most 'max' number of bits set in an 190 * array. Returns true if the number for bits set is <= max or will return false 191 * otherwise. 192 */ 193 static bool ice_bits_max_set(const u8 *mask, u16 size, u16 max) 194 { 195 u16 count = 0; 196 u16 i; 197 198 /* check each byte */ 199 for (i = 0; i < size; i++) { 200 /* if 0, go to next byte */ 201 if (!mask[i]) 202 continue; 203 204 /* We know there is at least one set bit in this byte because of 205 * the above check; if we already have found 'max' number of 206 * bits set, then we can return failure now. 207 */ 208 if (count == max) 209 return false; 210 211 /* count the bits in this byte, checking threshold */ 212 count += hweight8(mask[i]); 213 if (count > max) 214 return false; 215 } 216 217 return true; 218 } 219 220 /** 221 * ice_set_key - generate a variable sized key with multiples of 16-bits 222 * @key: pointer to where the key will be stored 223 * @size: the size of the complete key in bytes (must be even) 224 * @val: array of 8-bit values that makes up the value portion of the key 225 * @upd: array of 8-bit masks that determine what key portion to update 226 * @dc: array of 8-bit masks that make up the don't care mask 227 * @nm: array of 8-bit masks that make up the never match mask 228 * @off: the offset of the first byte in the key to update 229 * @len: the number of bytes in the key update 230 * 231 * This function generates a key from a value, a don't care mask and a never 232 * match mask. 233 * upd, dc, and nm are optional parameters, and can be NULL: 234 * upd == NULL --> upd mask is all 1's (update all bits) 235 * dc == NULL --> dc mask is all 0's (no don't care bits) 236 * nm == NULL --> nm mask is all 0's (no never match bits) 237 */ 238 static int 239 ice_set_key(u8 *key, u16 size, u8 *val, u8 *upd, u8 *dc, u8 *nm, u16 off, 240 u16 len) 241 { 242 u16 half_size; 243 u16 i; 244 245 /* size must be a multiple of 2 bytes. */ 246 if (size % 2) 247 return -EIO; 248 249 half_size = size / 2; 250 if (off + len > half_size) 251 return -EIO; 252 253 /* Make sure at most one bit is set in the never match mask. Having more 254 * than one never match mask bit set will cause HW to consume excessive 255 * power otherwise; this is a power management efficiency check. 256 */ 257 #define ICE_NVR_MTCH_BITS_MAX 1 258 if (nm && !ice_bits_max_set(nm, len, ICE_NVR_MTCH_BITS_MAX)) 259 return -EIO; 260 261 for (i = 0; i < len; i++) 262 if (ice_gen_key_word(val[i], upd ? upd[i] : 0xff, 263 dc ? dc[i] : 0, nm ? nm[i] : 0, 264 key + off + i, key + half_size + off + i)) 265 return -EIO; 266 267 return 0; 268 } 269 270 /** 271 * ice_acquire_change_lock 272 * @hw: pointer to the HW structure 273 * @access: access type (read or write) 274 * 275 * This function will request ownership of the change lock. 276 */ 277 int 278 ice_acquire_change_lock(struct ice_hw *hw, enum ice_aq_res_access_type access) 279 { 280 return ice_acquire_res(hw, ICE_CHANGE_LOCK_RES_ID, access, 281 ICE_CHANGE_LOCK_TIMEOUT); 282 } 283 284 /** 285 * ice_release_change_lock 286 * @hw: pointer to the HW structure 287 * 288 * This function will release the change lock using the proper Admin Command. 289 */ 290 void ice_release_change_lock(struct ice_hw *hw) 291 { 292 ice_release_res(hw, ICE_CHANGE_LOCK_RES_ID); 293 } 294 295 /** 296 * ice_get_open_tunnel_port - retrieve an open tunnel port 297 * @hw: pointer to the HW structure 298 * @port: returns open port 299 * @type: type of tunnel, can be TNL_LAST if it doesn't matter 300 */ 301 bool 302 ice_get_open_tunnel_port(struct ice_hw *hw, u16 *port, 303 enum ice_tunnel_type type) 304 { 305 bool res = false; 306 u16 i; 307 308 mutex_lock(&hw->tnl_lock); 309 310 for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++) 311 if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].port && 312 (type == TNL_LAST || type == hw->tnl.tbl[i].type)) { 313 *port = hw->tnl.tbl[i].port; 314 res = true; 315 break; 316 } 317 318 mutex_unlock(&hw->tnl_lock); 319 320 return res; 321 } 322 323 /** 324 * ice_upd_dvm_boost_entry 325 * @hw: pointer to the HW structure 326 * @entry: pointer to double vlan boost entry info 327 */ 328 static int 329 ice_upd_dvm_boost_entry(struct ice_hw *hw, struct ice_dvm_entry *entry) 330 { 331 struct ice_boost_tcam_section *sect_rx, *sect_tx; 332 int status = -ENOSPC; 333 struct ice_buf_build *bld; 334 u8 val, dc, nm; 335 336 bld = ice_pkg_buf_alloc(hw); 337 if (!bld) 338 return -ENOMEM; 339 340 /* allocate 2 sections, one for Rx parser, one for Tx parser */ 341 if (ice_pkg_buf_reserve_section(bld, 2)) 342 goto ice_upd_dvm_boost_entry_err; 343 344 sect_rx = ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM, 345 struct_size(sect_rx, tcam, 1)); 346 if (!sect_rx) 347 goto ice_upd_dvm_boost_entry_err; 348 sect_rx->count = cpu_to_le16(1); 349 350 sect_tx = ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM, 351 struct_size(sect_tx, tcam, 1)); 352 if (!sect_tx) 353 goto ice_upd_dvm_boost_entry_err; 354 sect_tx->count = cpu_to_le16(1); 355 356 /* copy original boost entry to update package buffer */ 357 memcpy(sect_rx->tcam, entry->boost_entry, sizeof(*sect_rx->tcam)); 358 359 /* re-write the don't care and never match bits accordingly */ 360 if (entry->enable) { 361 /* all bits are don't care */ 362 val = 0x00; 363 dc = 0xFF; 364 nm = 0x00; 365 } else { 366 /* disable, one never match bit, the rest are don't care */ 367 val = 0x00; 368 dc = 0xF7; 369 nm = 0x08; 370 } 371 372 ice_set_key((u8 *)§_rx->tcam[0].key, sizeof(sect_rx->tcam[0].key), 373 &val, NULL, &dc, &nm, 0, sizeof(u8)); 374 375 /* exact copy of entry to Tx section entry */ 376 memcpy(sect_tx->tcam, sect_rx->tcam, sizeof(*sect_tx->tcam)); 377 378 status = ice_update_pkg_no_lock(hw, ice_pkg_buf(bld), 1); 379 380 ice_upd_dvm_boost_entry_err: 381 ice_pkg_buf_free(hw, bld); 382 383 return status; 384 } 385 386 /** 387 * ice_set_dvm_boost_entries 388 * @hw: pointer to the HW structure 389 * 390 * Enable double vlan by updating the appropriate boost tcam entries. 391 */ 392 int ice_set_dvm_boost_entries(struct ice_hw *hw) 393 { 394 u16 i; 395 396 for (i = 0; i < hw->dvm_upd.count; i++) { 397 int status; 398 399 status = ice_upd_dvm_boost_entry(hw, &hw->dvm_upd.tbl[i]); 400 if (status) 401 return status; 402 } 403 404 return 0; 405 } 406 407 /** 408 * ice_tunnel_idx_to_entry - convert linear index to the sparse one 409 * @hw: pointer to the HW structure 410 * @type: type of tunnel 411 * @idx: linear index 412 * 413 * Stack assumes we have 2 linear tables with indexes [0, count_valid), 414 * but really the port table may be sprase, and types are mixed, so convert 415 * the stack index into the device index. 416 */ 417 static u16 ice_tunnel_idx_to_entry(struct ice_hw *hw, enum ice_tunnel_type type, 418 u16 idx) 419 { 420 u16 i; 421 422 for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++) 423 if (hw->tnl.tbl[i].valid && 424 hw->tnl.tbl[i].type == type && 425 idx-- == 0) 426 return i; 427 428 WARN_ON_ONCE(1); 429 return 0; 430 } 431 432 /** 433 * ice_create_tunnel 434 * @hw: pointer to the HW structure 435 * @index: device table entry 436 * @type: type of tunnel 437 * @port: port of tunnel to create 438 * 439 * Create a tunnel by updating the parse graph in the parser. We do that by 440 * creating a package buffer with the tunnel info and issuing an update package 441 * command. 442 */ 443 static int 444 ice_create_tunnel(struct ice_hw *hw, u16 index, 445 enum ice_tunnel_type type, u16 port) 446 { 447 struct ice_boost_tcam_section *sect_rx, *sect_tx; 448 struct ice_buf_build *bld; 449 int status = -ENOSPC; 450 451 mutex_lock(&hw->tnl_lock); 452 453 bld = ice_pkg_buf_alloc(hw); 454 if (!bld) { 455 status = -ENOMEM; 456 goto ice_create_tunnel_end; 457 } 458 459 /* allocate 2 sections, one for Rx parser, one for Tx parser */ 460 if (ice_pkg_buf_reserve_section(bld, 2)) 461 goto ice_create_tunnel_err; 462 463 sect_rx = ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM, 464 struct_size(sect_rx, tcam, 1)); 465 if (!sect_rx) 466 goto ice_create_tunnel_err; 467 sect_rx->count = cpu_to_le16(1); 468 469 sect_tx = ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM, 470 struct_size(sect_tx, tcam, 1)); 471 if (!sect_tx) 472 goto ice_create_tunnel_err; 473 sect_tx->count = cpu_to_le16(1); 474 475 /* copy original boost entry to update package buffer */ 476 memcpy(sect_rx->tcam, hw->tnl.tbl[index].boost_entry, 477 sizeof(*sect_rx->tcam)); 478 479 /* over-write the never-match dest port key bits with the encoded port 480 * bits 481 */ 482 ice_set_key((u8 *)§_rx->tcam[0].key, sizeof(sect_rx->tcam[0].key), 483 (u8 *)&port, NULL, NULL, NULL, 484 (u16)offsetof(struct ice_boost_key_value, hv_dst_port_key), 485 sizeof(sect_rx->tcam[0].key.key.hv_dst_port_key)); 486 487 /* exact copy of entry to Tx section entry */ 488 memcpy(sect_tx->tcam, sect_rx->tcam, sizeof(*sect_tx->tcam)); 489 490 status = ice_update_pkg(hw, ice_pkg_buf(bld), 1); 491 if (!status) 492 hw->tnl.tbl[index].port = port; 493 494 ice_create_tunnel_err: 495 ice_pkg_buf_free(hw, bld); 496 497 ice_create_tunnel_end: 498 mutex_unlock(&hw->tnl_lock); 499 500 return status; 501 } 502 503 /** 504 * ice_destroy_tunnel 505 * @hw: pointer to the HW structure 506 * @index: device table entry 507 * @type: type of tunnel 508 * @port: port of tunnel to destroy (ignored if the all parameter is true) 509 * 510 * Destroys a tunnel or all tunnels by creating an update package buffer 511 * targeting the specific updates requested and then performing an update 512 * package. 513 */ 514 static int 515 ice_destroy_tunnel(struct ice_hw *hw, u16 index, enum ice_tunnel_type type, 516 u16 port) 517 { 518 struct ice_boost_tcam_section *sect_rx, *sect_tx; 519 struct ice_buf_build *bld; 520 int status = -ENOSPC; 521 522 mutex_lock(&hw->tnl_lock); 523 524 if (WARN_ON(!hw->tnl.tbl[index].valid || 525 hw->tnl.tbl[index].type != type || 526 hw->tnl.tbl[index].port != port)) { 527 status = -EIO; 528 goto ice_destroy_tunnel_end; 529 } 530 531 bld = ice_pkg_buf_alloc(hw); 532 if (!bld) { 533 status = -ENOMEM; 534 goto ice_destroy_tunnel_end; 535 } 536 537 /* allocate 2 sections, one for Rx parser, one for Tx parser */ 538 if (ice_pkg_buf_reserve_section(bld, 2)) 539 goto ice_destroy_tunnel_err; 540 541 sect_rx = ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM, 542 struct_size(sect_rx, tcam, 1)); 543 if (!sect_rx) 544 goto ice_destroy_tunnel_err; 545 sect_rx->count = cpu_to_le16(1); 546 547 sect_tx = ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM, 548 struct_size(sect_tx, tcam, 1)); 549 if (!sect_tx) 550 goto ice_destroy_tunnel_err; 551 sect_tx->count = cpu_to_le16(1); 552 553 /* copy original boost entry to update package buffer, one copy to Rx 554 * section, another copy to the Tx section 555 */ 556 memcpy(sect_rx->tcam, hw->tnl.tbl[index].boost_entry, 557 sizeof(*sect_rx->tcam)); 558 memcpy(sect_tx->tcam, hw->tnl.tbl[index].boost_entry, 559 sizeof(*sect_tx->tcam)); 560 561 status = ice_update_pkg(hw, ice_pkg_buf(bld), 1); 562 if (!status) 563 hw->tnl.tbl[index].port = 0; 564 565 ice_destroy_tunnel_err: 566 ice_pkg_buf_free(hw, bld); 567 568 ice_destroy_tunnel_end: 569 mutex_unlock(&hw->tnl_lock); 570 571 return status; 572 } 573 574 int ice_udp_tunnel_set_port(struct net_device *netdev, unsigned int table, 575 unsigned int idx, struct udp_tunnel_info *ti) 576 { 577 struct ice_netdev_priv *np = netdev_priv(netdev); 578 struct ice_vsi *vsi = np->vsi; 579 struct ice_pf *pf = vsi->back; 580 enum ice_tunnel_type tnl_type; 581 int status; 582 u16 index; 583 584 tnl_type = ti->type == UDP_TUNNEL_TYPE_VXLAN ? TNL_VXLAN : TNL_GENEVE; 585 index = ice_tunnel_idx_to_entry(&pf->hw, tnl_type, idx); 586 587 status = ice_create_tunnel(&pf->hw, index, tnl_type, ntohs(ti->port)); 588 if (status) { 589 netdev_err(netdev, "Error adding UDP tunnel - %d\n", 590 status); 591 return -EIO; 592 } 593 594 udp_tunnel_nic_set_port_priv(netdev, table, idx, index); 595 return 0; 596 } 597 598 int ice_udp_tunnel_unset_port(struct net_device *netdev, unsigned int table, 599 unsigned int idx, struct udp_tunnel_info *ti) 600 { 601 struct ice_netdev_priv *np = netdev_priv(netdev); 602 struct ice_vsi *vsi = np->vsi; 603 struct ice_pf *pf = vsi->back; 604 enum ice_tunnel_type tnl_type; 605 int status; 606 607 tnl_type = ti->type == UDP_TUNNEL_TYPE_VXLAN ? TNL_VXLAN : TNL_GENEVE; 608 609 status = ice_destroy_tunnel(&pf->hw, ti->hw_priv, tnl_type, 610 ntohs(ti->port)); 611 if (status) { 612 netdev_err(netdev, "Error removing UDP tunnel - %d\n", 613 status); 614 return -EIO; 615 } 616 617 return 0; 618 } 619 620 /** 621 * ice_find_prot_off - find prot ID and offset pair, based on prof and FV index 622 * @hw: pointer to the hardware structure 623 * @blk: hardware block 624 * @prof: profile ID 625 * @fv_idx: field vector word index 626 * @prot: variable to receive the protocol ID 627 * @off: variable to receive the protocol offset 628 */ 629 int 630 ice_find_prot_off(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 fv_idx, 631 u8 *prot, u16 *off) 632 { 633 struct ice_fv_word *fv_ext; 634 635 if (prof >= hw->blk[blk].es.count) 636 return -EINVAL; 637 638 if (fv_idx >= hw->blk[blk].es.fvw) 639 return -EINVAL; 640 641 fv_ext = hw->blk[blk].es.t + (prof * hw->blk[blk].es.fvw); 642 643 *prot = fv_ext[fv_idx].prot_id; 644 *off = fv_ext[fv_idx].off; 645 646 return 0; 647 } 648 649 /* PTG Management */ 650 651 /** 652 * ice_ptg_find_ptype - Search for packet type group using packet type (ptype) 653 * @hw: pointer to the hardware structure 654 * @blk: HW block 655 * @ptype: the ptype to search for 656 * @ptg: pointer to variable that receives the PTG 657 * 658 * This function will search the PTGs for a particular ptype, returning the 659 * PTG ID that contains it through the PTG parameter, with the value of 660 * ICE_DEFAULT_PTG (0) meaning it is part the default PTG. 661 */ 662 static int 663 ice_ptg_find_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 *ptg) 664 { 665 if (ptype >= ICE_XLT1_CNT || !ptg) 666 return -EINVAL; 667 668 *ptg = hw->blk[blk].xlt1.ptypes[ptype].ptg; 669 return 0; 670 } 671 672 /** 673 * ice_ptg_alloc_val - Allocates a new packet type group ID by value 674 * @hw: pointer to the hardware structure 675 * @blk: HW block 676 * @ptg: the PTG to allocate 677 * 678 * This function allocates a given packet type group ID specified by the PTG 679 * parameter. 680 */ 681 static void ice_ptg_alloc_val(struct ice_hw *hw, enum ice_block blk, u8 ptg) 682 { 683 hw->blk[blk].xlt1.ptg_tbl[ptg].in_use = true; 684 } 685 686 /** 687 * ice_ptg_remove_ptype - Removes ptype from a particular packet type group 688 * @hw: pointer to the hardware structure 689 * @blk: HW block 690 * @ptype: the ptype to remove 691 * @ptg: the PTG to remove the ptype from 692 * 693 * This function will remove the ptype from the specific PTG, and move it to 694 * the default PTG (ICE_DEFAULT_PTG). 695 */ 696 static int 697 ice_ptg_remove_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 ptg) 698 { 699 struct ice_ptg_ptype **ch; 700 struct ice_ptg_ptype *p; 701 702 if (ptype > ICE_XLT1_CNT - 1) 703 return -EINVAL; 704 705 if (!hw->blk[blk].xlt1.ptg_tbl[ptg].in_use) 706 return -ENOENT; 707 708 /* Should not happen if .in_use is set, bad config */ 709 if (!hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype) 710 return -EIO; 711 712 /* find the ptype within this PTG, and bypass the link over it */ 713 p = hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype; 714 ch = &hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype; 715 while (p) { 716 if (ptype == (p - hw->blk[blk].xlt1.ptypes)) { 717 *ch = p->next_ptype; 718 break; 719 } 720 721 ch = &p->next_ptype; 722 p = p->next_ptype; 723 } 724 725 hw->blk[blk].xlt1.ptypes[ptype].ptg = ICE_DEFAULT_PTG; 726 hw->blk[blk].xlt1.ptypes[ptype].next_ptype = NULL; 727 728 return 0; 729 } 730 731 /** 732 * ice_ptg_add_mv_ptype - Adds/moves ptype to a particular packet type group 733 * @hw: pointer to the hardware structure 734 * @blk: HW block 735 * @ptype: the ptype to add or move 736 * @ptg: the PTG to add or move the ptype to 737 * 738 * This function will either add or move a ptype to a particular PTG depending 739 * on if the ptype is already part of another group. Note that using a 740 * destination PTG ID of ICE_DEFAULT_PTG (0) will move the ptype to the 741 * default PTG. 742 */ 743 static int 744 ice_ptg_add_mv_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 ptg) 745 { 746 u8 original_ptg; 747 int status; 748 749 if (ptype > ICE_XLT1_CNT - 1) 750 return -EINVAL; 751 752 if (!hw->blk[blk].xlt1.ptg_tbl[ptg].in_use && ptg != ICE_DEFAULT_PTG) 753 return -ENOENT; 754 755 status = ice_ptg_find_ptype(hw, blk, ptype, &original_ptg); 756 if (status) 757 return status; 758 759 /* Is ptype already in the correct PTG? */ 760 if (original_ptg == ptg) 761 return 0; 762 763 /* Remove from original PTG and move back to the default PTG */ 764 if (original_ptg != ICE_DEFAULT_PTG) 765 ice_ptg_remove_ptype(hw, blk, ptype, original_ptg); 766 767 /* Moving to default PTG? Then we're done with this request */ 768 if (ptg == ICE_DEFAULT_PTG) 769 return 0; 770 771 /* Add ptype to PTG at beginning of list */ 772 hw->blk[blk].xlt1.ptypes[ptype].next_ptype = 773 hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype; 774 hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype = 775 &hw->blk[blk].xlt1.ptypes[ptype]; 776 777 hw->blk[blk].xlt1.ptypes[ptype].ptg = ptg; 778 hw->blk[blk].xlt1.t[ptype] = ptg; 779 780 return 0; 781 } 782 783 /* Block / table size info */ 784 struct ice_blk_size_details { 785 u16 xlt1; /* # XLT1 entries */ 786 u16 xlt2; /* # XLT2 entries */ 787 u16 prof_tcam; /* # profile ID TCAM entries */ 788 u16 prof_id; /* # profile IDs */ 789 u8 prof_cdid_bits; /* # CDID one-hot bits used in key */ 790 u16 prof_redir; /* # profile redirection entries */ 791 u16 es; /* # extraction sequence entries */ 792 u16 fvw; /* # field vector words */ 793 u8 overwrite; /* overwrite existing entries allowed */ 794 u8 reverse; /* reverse FV order */ 795 }; 796 797 static const struct ice_blk_size_details blk_sizes[ICE_BLK_COUNT] = { 798 /** 799 * Table Definitions 800 * XLT1 - Number of entries in XLT1 table 801 * XLT2 - Number of entries in XLT2 table 802 * TCAM - Number of entries Profile ID TCAM table 803 * CDID - Control Domain ID of the hardware block 804 * PRED - Number of entries in the Profile Redirection Table 805 * FV - Number of entries in the Field Vector 806 * FVW - Width (in WORDs) of the Field Vector 807 * OVR - Overwrite existing table entries 808 * REV - Reverse FV 809 */ 810 /* XLT1 , XLT2 ,TCAM, PID,CDID,PRED, FV, FVW */ 811 /* Overwrite , Reverse FV */ 812 /* SW */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 512, 256, 0, 256, 256, 48, 813 false, false }, 814 /* ACL */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 512, 128, 0, 128, 128, 32, 815 false, false }, 816 /* FD */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 512, 128, 0, 128, 128, 24, 817 false, true }, 818 /* RSS */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 512, 128, 0, 128, 128, 24, 819 true, true }, 820 /* PE */ { ICE_XLT1_CNT, ICE_XLT2_CNT, 64, 32, 0, 32, 32, 24, 821 false, false }, 822 }; 823 824 enum ice_sid_all { 825 ICE_SID_XLT1_OFF = 0, 826 ICE_SID_XLT2_OFF, 827 ICE_SID_PR_OFF, 828 ICE_SID_PR_REDIR_OFF, 829 ICE_SID_ES_OFF, 830 ICE_SID_OFF_COUNT, 831 }; 832 833 /* Characteristic handling */ 834 835 /** 836 * ice_match_prop_lst - determine if properties of two lists match 837 * @list1: first properties list 838 * @list2: second properties list 839 * 840 * Count, cookies and the order must match in order to be considered equivalent. 841 */ 842 static bool 843 ice_match_prop_lst(struct list_head *list1, struct list_head *list2) 844 { 845 struct ice_vsig_prof *tmp1; 846 struct ice_vsig_prof *tmp2; 847 u16 chk_count = 0; 848 u16 count = 0; 849 850 /* compare counts */ 851 list_for_each_entry(tmp1, list1, list) 852 count++; 853 list_for_each_entry(tmp2, list2, list) 854 chk_count++; 855 if (!count || count != chk_count) 856 return false; 857 858 tmp1 = list_first_entry(list1, struct ice_vsig_prof, list); 859 tmp2 = list_first_entry(list2, struct ice_vsig_prof, list); 860 861 /* profile cookies must compare, and in the exact same order to take 862 * into account priority 863 */ 864 while (count--) { 865 if (tmp2->profile_cookie != tmp1->profile_cookie) 866 return false; 867 868 tmp1 = list_next_entry(tmp1, list); 869 tmp2 = list_next_entry(tmp2, list); 870 } 871 872 return true; 873 } 874 875 /* VSIG Management */ 876 877 /** 878 * ice_vsig_find_vsi - find a VSIG that contains a specified VSI 879 * @hw: pointer to the hardware structure 880 * @blk: HW block 881 * @vsi: VSI of interest 882 * @vsig: pointer to receive the VSI group 883 * 884 * This function will lookup the VSI entry in the XLT2 list and return 885 * the VSI group its associated with. 886 */ 887 static int 888 ice_vsig_find_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 *vsig) 889 { 890 if (!vsig || vsi >= ICE_MAX_VSI) 891 return -EINVAL; 892 893 /* As long as there's a default or valid VSIG associated with the input 894 * VSI, the functions returns a success. Any handling of VSIG will be 895 * done by the following add, update or remove functions. 896 */ 897 *vsig = hw->blk[blk].xlt2.vsis[vsi].vsig; 898 899 return 0; 900 } 901 902 /** 903 * ice_vsig_alloc_val - allocate a new VSIG by value 904 * @hw: pointer to the hardware structure 905 * @blk: HW block 906 * @vsig: the VSIG to allocate 907 * 908 * This function will allocate a given VSIG specified by the VSIG parameter. 909 */ 910 static u16 ice_vsig_alloc_val(struct ice_hw *hw, enum ice_block blk, u16 vsig) 911 { 912 u16 idx = vsig & ICE_VSIG_IDX_M; 913 914 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) { 915 INIT_LIST_HEAD(&hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst); 916 hw->blk[blk].xlt2.vsig_tbl[idx].in_use = true; 917 } 918 919 return ICE_VSIG_VALUE(idx, hw->pf_id); 920 } 921 922 /** 923 * ice_vsig_alloc - Finds a free entry and allocates a new VSIG 924 * @hw: pointer to the hardware structure 925 * @blk: HW block 926 * 927 * This function will iterate through the VSIG list and mark the first 928 * unused entry for the new VSIG entry as used and return that value. 929 */ 930 static u16 ice_vsig_alloc(struct ice_hw *hw, enum ice_block blk) 931 { 932 u16 i; 933 934 for (i = 1; i < ICE_MAX_VSIGS; i++) 935 if (!hw->blk[blk].xlt2.vsig_tbl[i].in_use) 936 return ice_vsig_alloc_val(hw, blk, i); 937 938 return ICE_DEFAULT_VSIG; 939 } 940 941 /** 942 * ice_find_dup_props_vsig - find VSI group with a specified set of properties 943 * @hw: pointer to the hardware structure 944 * @blk: HW block 945 * @chs: characteristic list 946 * @vsig: returns the VSIG with the matching profiles, if found 947 * 948 * Each VSIG is associated with a characteristic set; i.e. all VSIs under 949 * a group have the same characteristic set. To check if there exists a VSIG 950 * which has the same characteristics as the input characteristics; this 951 * function will iterate through the XLT2 list and return the VSIG that has a 952 * matching configuration. In order to make sure that priorities are accounted 953 * for, the list must match exactly, including the order in which the 954 * characteristics are listed. 955 */ 956 static int 957 ice_find_dup_props_vsig(struct ice_hw *hw, enum ice_block blk, 958 struct list_head *chs, u16 *vsig) 959 { 960 struct ice_xlt2 *xlt2 = &hw->blk[blk].xlt2; 961 u16 i; 962 963 for (i = 0; i < xlt2->count; i++) 964 if (xlt2->vsig_tbl[i].in_use && 965 ice_match_prop_lst(chs, &xlt2->vsig_tbl[i].prop_lst)) { 966 *vsig = ICE_VSIG_VALUE(i, hw->pf_id); 967 return 0; 968 } 969 970 return -ENOENT; 971 } 972 973 /** 974 * ice_vsig_free - free VSI group 975 * @hw: pointer to the hardware structure 976 * @blk: HW block 977 * @vsig: VSIG to remove 978 * 979 * The function will remove all VSIs associated with the input VSIG and move 980 * them to the DEFAULT_VSIG and mark the VSIG available. 981 */ 982 static int ice_vsig_free(struct ice_hw *hw, enum ice_block blk, u16 vsig) 983 { 984 struct ice_vsig_prof *dtmp, *del; 985 struct ice_vsig_vsi *vsi_cur; 986 u16 idx; 987 988 idx = vsig & ICE_VSIG_IDX_M; 989 if (idx >= ICE_MAX_VSIGS) 990 return -EINVAL; 991 992 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) 993 return -ENOENT; 994 995 hw->blk[blk].xlt2.vsig_tbl[idx].in_use = false; 996 997 vsi_cur = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 998 /* If the VSIG has at least 1 VSI then iterate through the 999 * list and remove the VSIs before deleting the group. 1000 */ 1001 if (vsi_cur) { 1002 /* remove all vsis associated with this VSIG XLT2 entry */ 1003 do { 1004 struct ice_vsig_vsi *tmp = vsi_cur->next_vsi; 1005 1006 vsi_cur->vsig = ICE_DEFAULT_VSIG; 1007 vsi_cur->changed = 1; 1008 vsi_cur->next_vsi = NULL; 1009 vsi_cur = tmp; 1010 } while (vsi_cur); 1011 1012 /* NULL terminate head of VSI list */ 1013 hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi = NULL; 1014 } 1015 1016 /* free characteristic list */ 1017 list_for_each_entry_safe(del, dtmp, 1018 &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 1019 list) { 1020 list_del(&del->list); 1021 devm_kfree(ice_hw_to_dev(hw), del); 1022 } 1023 1024 /* if VSIG characteristic list was cleared for reset 1025 * re-initialize the list head 1026 */ 1027 INIT_LIST_HEAD(&hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst); 1028 1029 return 0; 1030 } 1031 1032 /** 1033 * ice_vsig_remove_vsi - remove VSI from VSIG 1034 * @hw: pointer to the hardware structure 1035 * @blk: HW block 1036 * @vsi: VSI to remove 1037 * @vsig: VSI group to remove from 1038 * 1039 * The function will remove the input VSI from its VSI group and move it 1040 * to the DEFAULT_VSIG. 1041 */ 1042 static int 1043 ice_vsig_remove_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig) 1044 { 1045 struct ice_vsig_vsi **vsi_head, *vsi_cur, *vsi_tgt; 1046 u16 idx; 1047 1048 idx = vsig & ICE_VSIG_IDX_M; 1049 1050 if (vsi >= ICE_MAX_VSI || idx >= ICE_MAX_VSIGS) 1051 return -EINVAL; 1052 1053 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) 1054 return -ENOENT; 1055 1056 /* entry already in default VSIG, don't have to remove */ 1057 if (idx == ICE_DEFAULT_VSIG) 1058 return 0; 1059 1060 vsi_head = &hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 1061 if (!(*vsi_head)) 1062 return -EIO; 1063 1064 vsi_tgt = &hw->blk[blk].xlt2.vsis[vsi]; 1065 vsi_cur = (*vsi_head); 1066 1067 /* iterate the VSI list, skip over the entry to be removed */ 1068 while (vsi_cur) { 1069 if (vsi_tgt == vsi_cur) { 1070 (*vsi_head) = vsi_cur->next_vsi; 1071 break; 1072 } 1073 vsi_head = &vsi_cur->next_vsi; 1074 vsi_cur = vsi_cur->next_vsi; 1075 } 1076 1077 /* verify if VSI was removed from group list */ 1078 if (!vsi_cur) 1079 return -ENOENT; 1080 1081 vsi_cur->vsig = ICE_DEFAULT_VSIG; 1082 vsi_cur->changed = 1; 1083 vsi_cur->next_vsi = NULL; 1084 1085 return 0; 1086 } 1087 1088 /** 1089 * ice_vsig_add_mv_vsi - add or move a VSI to a VSI group 1090 * @hw: pointer to the hardware structure 1091 * @blk: HW block 1092 * @vsi: VSI to move 1093 * @vsig: destination VSI group 1094 * 1095 * This function will move or add the input VSI to the target VSIG. 1096 * The function will find the original VSIG the VSI belongs to and 1097 * move the entry to the DEFAULT_VSIG, update the original VSIG and 1098 * then move entry to the new VSIG. 1099 */ 1100 static int 1101 ice_vsig_add_mv_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig) 1102 { 1103 struct ice_vsig_vsi *tmp; 1104 u16 orig_vsig, idx; 1105 int status; 1106 1107 idx = vsig & ICE_VSIG_IDX_M; 1108 1109 if (vsi >= ICE_MAX_VSI || idx >= ICE_MAX_VSIGS) 1110 return -EINVAL; 1111 1112 /* if VSIG not in use and VSIG is not default type this VSIG 1113 * doesn't exist. 1114 */ 1115 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use && 1116 vsig != ICE_DEFAULT_VSIG) 1117 return -ENOENT; 1118 1119 status = ice_vsig_find_vsi(hw, blk, vsi, &orig_vsig); 1120 if (status) 1121 return status; 1122 1123 /* no update required if vsigs match */ 1124 if (orig_vsig == vsig) 1125 return 0; 1126 1127 if (orig_vsig != ICE_DEFAULT_VSIG) { 1128 /* remove entry from orig_vsig and add to default VSIG */ 1129 status = ice_vsig_remove_vsi(hw, blk, vsi, orig_vsig); 1130 if (status) 1131 return status; 1132 } 1133 1134 if (idx == ICE_DEFAULT_VSIG) 1135 return 0; 1136 1137 /* Create VSI entry and add VSIG and prop_mask values */ 1138 hw->blk[blk].xlt2.vsis[vsi].vsig = vsig; 1139 hw->blk[blk].xlt2.vsis[vsi].changed = 1; 1140 1141 /* Add new entry to the head of the VSIG list */ 1142 tmp = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 1143 hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi = 1144 &hw->blk[blk].xlt2.vsis[vsi]; 1145 hw->blk[blk].xlt2.vsis[vsi].next_vsi = tmp; 1146 hw->blk[blk].xlt2.t[vsi] = vsig; 1147 1148 return 0; 1149 } 1150 1151 /** 1152 * ice_prof_has_mask_idx - determine if profile index masking is identical 1153 * @hw: pointer to the hardware structure 1154 * @blk: HW block 1155 * @prof: profile to check 1156 * @idx: profile index to check 1157 * @mask: mask to match 1158 */ 1159 static bool 1160 ice_prof_has_mask_idx(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 idx, 1161 u16 mask) 1162 { 1163 bool expect_no_mask = false; 1164 bool found = false; 1165 bool match = false; 1166 u16 i; 1167 1168 /* If mask is 0x0000 or 0xffff, then there is no masking */ 1169 if (mask == 0 || mask == 0xffff) 1170 expect_no_mask = true; 1171 1172 /* Scan the enabled masks on this profile, for the specified idx */ 1173 for (i = hw->blk[blk].masks.first; i < hw->blk[blk].masks.first + 1174 hw->blk[blk].masks.count; i++) 1175 if (hw->blk[blk].es.mask_ena[prof] & BIT(i)) 1176 if (hw->blk[blk].masks.masks[i].in_use && 1177 hw->blk[blk].masks.masks[i].idx == idx) { 1178 found = true; 1179 if (hw->blk[blk].masks.masks[i].mask == mask) 1180 match = true; 1181 break; 1182 } 1183 1184 if (expect_no_mask) { 1185 if (found) 1186 return false; 1187 } else { 1188 if (!match) 1189 return false; 1190 } 1191 1192 return true; 1193 } 1194 1195 /** 1196 * ice_prof_has_mask - determine if profile masking is identical 1197 * @hw: pointer to the hardware structure 1198 * @blk: HW block 1199 * @prof: profile to check 1200 * @masks: masks to match 1201 */ 1202 static bool 1203 ice_prof_has_mask(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 *masks) 1204 { 1205 u16 i; 1206 1207 /* es->mask_ena[prof] will have the mask */ 1208 for (i = 0; i < hw->blk[blk].es.fvw; i++) 1209 if (!ice_prof_has_mask_idx(hw, blk, prof, i, masks[i])) 1210 return false; 1211 1212 return true; 1213 } 1214 1215 /** 1216 * ice_find_prof_id_with_mask - find profile ID for a given field vector 1217 * @hw: pointer to the hardware structure 1218 * @blk: HW block 1219 * @fv: field vector to search for 1220 * @masks: masks for FV 1221 * @prof_id: receives the profile ID 1222 */ 1223 static int 1224 ice_find_prof_id_with_mask(struct ice_hw *hw, enum ice_block blk, 1225 struct ice_fv_word *fv, u16 *masks, u8 *prof_id) 1226 { 1227 struct ice_es *es = &hw->blk[blk].es; 1228 u8 i; 1229 1230 /* For FD, we don't want to re-use a existed profile with the same 1231 * field vector and mask. This will cause rule interference. 1232 */ 1233 if (blk == ICE_BLK_FD) 1234 return -ENOENT; 1235 1236 for (i = 0; i < (u8)es->count; i++) { 1237 u16 off = i * es->fvw; 1238 1239 if (memcmp(&es->t[off], fv, es->fvw * sizeof(*fv))) 1240 continue; 1241 1242 /* check if masks settings are the same for this profile */ 1243 if (masks && !ice_prof_has_mask(hw, blk, i, masks)) 1244 continue; 1245 1246 *prof_id = i; 1247 return 0; 1248 } 1249 1250 return -ENOENT; 1251 } 1252 1253 /** 1254 * ice_prof_id_rsrc_type - get profile ID resource type for a block type 1255 * @blk: the block type 1256 * @rsrc_type: pointer to variable to receive the resource type 1257 */ 1258 static bool ice_prof_id_rsrc_type(enum ice_block blk, u16 *rsrc_type) 1259 { 1260 switch (blk) { 1261 case ICE_BLK_FD: 1262 *rsrc_type = ICE_AQC_RES_TYPE_FD_PROF_BLDR_PROFID; 1263 break; 1264 case ICE_BLK_RSS: 1265 *rsrc_type = ICE_AQC_RES_TYPE_HASH_PROF_BLDR_PROFID; 1266 break; 1267 default: 1268 return false; 1269 } 1270 return true; 1271 } 1272 1273 /** 1274 * ice_tcam_ent_rsrc_type - get TCAM entry resource type for a block type 1275 * @blk: the block type 1276 * @rsrc_type: pointer to variable to receive the resource type 1277 */ 1278 static bool ice_tcam_ent_rsrc_type(enum ice_block blk, u16 *rsrc_type) 1279 { 1280 switch (blk) { 1281 case ICE_BLK_FD: 1282 *rsrc_type = ICE_AQC_RES_TYPE_FD_PROF_BLDR_TCAM; 1283 break; 1284 case ICE_BLK_RSS: 1285 *rsrc_type = ICE_AQC_RES_TYPE_HASH_PROF_BLDR_TCAM; 1286 break; 1287 default: 1288 return false; 1289 } 1290 return true; 1291 } 1292 1293 /** 1294 * ice_alloc_tcam_ent - allocate hardware TCAM entry 1295 * @hw: pointer to the HW struct 1296 * @blk: the block to allocate the TCAM for 1297 * @btm: true to allocate from bottom of table, false to allocate from top 1298 * @tcam_idx: pointer to variable to receive the TCAM entry 1299 * 1300 * This function allocates a new entry in a Profile ID TCAM for a specific 1301 * block. 1302 */ 1303 static int 1304 ice_alloc_tcam_ent(struct ice_hw *hw, enum ice_block blk, bool btm, 1305 u16 *tcam_idx) 1306 { 1307 u16 res_type; 1308 1309 if (!ice_tcam_ent_rsrc_type(blk, &res_type)) 1310 return -EINVAL; 1311 1312 return ice_alloc_hw_res(hw, res_type, 1, btm, tcam_idx); 1313 } 1314 1315 /** 1316 * ice_free_tcam_ent - free hardware TCAM entry 1317 * @hw: pointer to the HW struct 1318 * @blk: the block from which to free the TCAM entry 1319 * @tcam_idx: the TCAM entry to free 1320 * 1321 * This function frees an entry in a Profile ID TCAM for a specific block. 1322 */ 1323 static int 1324 ice_free_tcam_ent(struct ice_hw *hw, enum ice_block blk, u16 tcam_idx) 1325 { 1326 u16 res_type; 1327 1328 if (!ice_tcam_ent_rsrc_type(blk, &res_type)) 1329 return -EINVAL; 1330 1331 return ice_free_hw_res(hw, res_type, 1, &tcam_idx); 1332 } 1333 1334 /** 1335 * ice_alloc_prof_id - allocate profile ID 1336 * @hw: pointer to the HW struct 1337 * @blk: the block to allocate the profile ID for 1338 * @prof_id: pointer to variable to receive the profile ID 1339 * 1340 * This function allocates a new profile ID, which also corresponds to a Field 1341 * Vector (Extraction Sequence) entry. 1342 */ 1343 static int ice_alloc_prof_id(struct ice_hw *hw, enum ice_block blk, u8 *prof_id) 1344 { 1345 u16 res_type; 1346 u16 get_prof; 1347 int status; 1348 1349 if (!ice_prof_id_rsrc_type(blk, &res_type)) 1350 return -EINVAL; 1351 1352 status = ice_alloc_hw_res(hw, res_type, 1, false, &get_prof); 1353 if (!status) 1354 *prof_id = (u8)get_prof; 1355 1356 return status; 1357 } 1358 1359 /** 1360 * ice_free_prof_id - free profile ID 1361 * @hw: pointer to the HW struct 1362 * @blk: the block from which to free the profile ID 1363 * @prof_id: the profile ID to free 1364 * 1365 * This function frees a profile ID, which also corresponds to a Field Vector. 1366 */ 1367 static int ice_free_prof_id(struct ice_hw *hw, enum ice_block blk, u8 prof_id) 1368 { 1369 u16 tmp_prof_id = (u16)prof_id; 1370 u16 res_type; 1371 1372 if (!ice_prof_id_rsrc_type(blk, &res_type)) 1373 return -EINVAL; 1374 1375 return ice_free_hw_res(hw, res_type, 1, &tmp_prof_id); 1376 } 1377 1378 /** 1379 * ice_prof_inc_ref - increment reference count for profile 1380 * @hw: pointer to the HW struct 1381 * @blk: the block from which to free the profile ID 1382 * @prof_id: the profile ID for which to increment the reference count 1383 */ 1384 static int ice_prof_inc_ref(struct ice_hw *hw, enum ice_block blk, u8 prof_id) 1385 { 1386 if (prof_id > hw->blk[blk].es.count) 1387 return -EINVAL; 1388 1389 hw->blk[blk].es.ref_count[prof_id]++; 1390 1391 return 0; 1392 } 1393 1394 /** 1395 * ice_write_prof_mask_reg - write profile mask register 1396 * @hw: pointer to the HW struct 1397 * @blk: hardware block 1398 * @mask_idx: mask index 1399 * @idx: index of the FV which will use the mask 1400 * @mask: the 16-bit mask 1401 */ 1402 static void 1403 ice_write_prof_mask_reg(struct ice_hw *hw, enum ice_block blk, u16 mask_idx, 1404 u16 idx, u16 mask) 1405 { 1406 u32 offset; 1407 u32 val; 1408 1409 switch (blk) { 1410 case ICE_BLK_RSS: 1411 offset = GLQF_HMASK(mask_idx); 1412 val = (idx << GLQF_HMASK_MSK_INDEX_S) & GLQF_HMASK_MSK_INDEX_M; 1413 val |= (mask << GLQF_HMASK_MASK_S) & GLQF_HMASK_MASK_M; 1414 break; 1415 case ICE_BLK_FD: 1416 offset = GLQF_FDMASK(mask_idx); 1417 val = (idx << GLQF_FDMASK_MSK_INDEX_S) & GLQF_FDMASK_MSK_INDEX_M; 1418 val |= (mask << GLQF_FDMASK_MASK_S) & GLQF_FDMASK_MASK_M; 1419 break; 1420 default: 1421 ice_debug(hw, ICE_DBG_PKG, "No profile masks for block %d\n", 1422 blk); 1423 return; 1424 } 1425 1426 wr32(hw, offset, val); 1427 ice_debug(hw, ICE_DBG_PKG, "write mask, blk %d (%d): %x = %x\n", 1428 blk, idx, offset, val); 1429 } 1430 1431 /** 1432 * ice_write_prof_mask_enable_res - write profile mask enable register 1433 * @hw: pointer to the HW struct 1434 * @blk: hardware block 1435 * @prof_id: profile ID 1436 * @enable_mask: enable mask 1437 */ 1438 static void 1439 ice_write_prof_mask_enable_res(struct ice_hw *hw, enum ice_block blk, 1440 u16 prof_id, u32 enable_mask) 1441 { 1442 u32 offset; 1443 1444 switch (blk) { 1445 case ICE_BLK_RSS: 1446 offset = GLQF_HMASK_SEL(prof_id); 1447 break; 1448 case ICE_BLK_FD: 1449 offset = GLQF_FDMASK_SEL(prof_id); 1450 break; 1451 default: 1452 ice_debug(hw, ICE_DBG_PKG, "No profile masks for block %d\n", 1453 blk); 1454 return; 1455 } 1456 1457 wr32(hw, offset, enable_mask); 1458 ice_debug(hw, ICE_DBG_PKG, "write mask enable, blk %d (%d): %x = %x\n", 1459 blk, prof_id, offset, enable_mask); 1460 } 1461 1462 /** 1463 * ice_init_prof_masks - initial prof masks 1464 * @hw: pointer to the HW struct 1465 * @blk: hardware block 1466 */ 1467 static void ice_init_prof_masks(struct ice_hw *hw, enum ice_block blk) 1468 { 1469 u16 per_pf; 1470 u16 i; 1471 1472 mutex_init(&hw->blk[blk].masks.lock); 1473 1474 per_pf = ICE_PROF_MASK_COUNT / hw->dev_caps.num_funcs; 1475 1476 hw->blk[blk].masks.count = per_pf; 1477 hw->blk[blk].masks.first = hw->pf_id * per_pf; 1478 1479 memset(hw->blk[blk].masks.masks, 0, sizeof(hw->blk[blk].masks.masks)); 1480 1481 for (i = hw->blk[blk].masks.first; 1482 i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++) 1483 ice_write_prof_mask_reg(hw, blk, i, 0, 0); 1484 } 1485 1486 /** 1487 * ice_init_all_prof_masks - initialize all prof masks 1488 * @hw: pointer to the HW struct 1489 */ 1490 static void ice_init_all_prof_masks(struct ice_hw *hw) 1491 { 1492 ice_init_prof_masks(hw, ICE_BLK_RSS); 1493 ice_init_prof_masks(hw, ICE_BLK_FD); 1494 } 1495 1496 /** 1497 * ice_alloc_prof_mask - allocate profile mask 1498 * @hw: pointer to the HW struct 1499 * @blk: hardware block 1500 * @idx: index of FV which will use the mask 1501 * @mask: the 16-bit mask 1502 * @mask_idx: variable to receive the mask index 1503 */ 1504 static int 1505 ice_alloc_prof_mask(struct ice_hw *hw, enum ice_block blk, u16 idx, u16 mask, 1506 u16 *mask_idx) 1507 { 1508 bool found_unused = false, found_copy = false; 1509 u16 unused_idx = 0, copy_idx = 0; 1510 int status = -ENOSPC; 1511 u16 i; 1512 1513 if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) 1514 return -EINVAL; 1515 1516 mutex_lock(&hw->blk[blk].masks.lock); 1517 1518 for (i = hw->blk[blk].masks.first; 1519 i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++) 1520 if (hw->blk[blk].masks.masks[i].in_use) { 1521 /* if mask is in use and it exactly duplicates the 1522 * desired mask and index, then in can be reused 1523 */ 1524 if (hw->blk[blk].masks.masks[i].mask == mask && 1525 hw->blk[blk].masks.masks[i].idx == idx) { 1526 found_copy = true; 1527 copy_idx = i; 1528 break; 1529 } 1530 } else { 1531 /* save off unused index, but keep searching in case 1532 * there is an exact match later on 1533 */ 1534 if (!found_unused) { 1535 found_unused = true; 1536 unused_idx = i; 1537 } 1538 } 1539 1540 if (found_copy) 1541 i = copy_idx; 1542 else if (found_unused) 1543 i = unused_idx; 1544 else 1545 goto err_ice_alloc_prof_mask; 1546 1547 /* update mask for a new entry */ 1548 if (found_unused) { 1549 hw->blk[blk].masks.masks[i].in_use = true; 1550 hw->blk[blk].masks.masks[i].mask = mask; 1551 hw->blk[blk].masks.masks[i].idx = idx; 1552 hw->blk[blk].masks.masks[i].ref = 0; 1553 ice_write_prof_mask_reg(hw, blk, i, idx, mask); 1554 } 1555 1556 hw->blk[blk].masks.masks[i].ref++; 1557 *mask_idx = i; 1558 status = 0; 1559 1560 err_ice_alloc_prof_mask: 1561 mutex_unlock(&hw->blk[blk].masks.lock); 1562 1563 return status; 1564 } 1565 1566 /** 1567 * ice_free_prof_mask - free profile mask 1568 * @hw: pointer to the HW struct 1569 * @blk: hardware block 1570 * @mask_idx: index of mask 1571 */ 1572 static int 1573 ice_free_prof_mask(struct ice_hw *hw, enum ice_block blk, u16 mask_idx) 1574 { 1575 if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) 1576 return -EINVAL; 1577 1578 if (!(mask_idx >= hw->blk[blk].masks.first && 1579 mask_idx < hw->blk[blk].masks.first + hw->blk[blk].masks.count)) 1580 return -ENOENT; 1581 1582 mutex_lock(&hw->blk[blk].masks.lock); 1583 1584 if (!hw->blk[blk].masks.masks[mask_idx].in_use) 1585 goto exit_ice_free_prof_mask; 1586 1587 if (hw->blk[blk].masks.masks[mask_idx].ref > 1) { 1588 hw->blk[blk].masks.masks[mask_idx].ref--; 1589 goto exit_ice_free_prof_mask; 1590 } 1591 1592 /* remove mask */ 1593 hw->blk[blk].masks.masks[mask_idx].in_use = false; 1594 hw->blk[blk].masks.masks[mask_idx].mask = 0; 1595 hw->blk[blk].masks.masks[mask_idx].idx = 0; 1596 1597 /* update mask as unused entry */ 1598 ice_debug(hw, ICE_DBG_PKG, "Free mask, blk %d, mask %d\n", blk, 1599 mask_idx); 1600 ice_write_prof_mask_reg(hw, blk, mask_idx, 0, 0); 1601 1602 exit_ice_free_prof_mask: 1603 mutex_unlock(&hw->blk[blk].masks.lock); 1604 1605 return 0; 1606 } 1607 1608 /** 1609 * ice_free_prof_masks - free all profile masks for a profile 1610 * @hw: pointer to the HW struct 1611 * @blk: hardware block 1612 * @prof_id: profile ID 1613 */ 1614 static int 1615 ice_free_prof_masks(struct ice_hw *hw, enum ice_block blk, u16 prof_id) 1616 { 1617 u32 mask_bm; 1618 u16 i; 1619 1620 if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) 1621 return -EINVAL; 1622 1623 mask_bm = hw->blk[blk].es.mask_ena[prof_id]; 1624 for (i = 0; i < BITS_PER_BYTE * sizeof(mask_bm); i++) 1625 if (mask_bm & BIT(i)) 1626 ice_free_prof_mask(hw, blk, i); 1627 1628 return 0; 1629 } 1630 1631 /** 1632 * ice_shutdown_prof_masks - releases lock for masking 1633 * @hw: pointer to the HW struct 1634 * @blk: hardware block 1635 * 1636 * This should be called before unloading the driver 1637 */ 1638 static void ice_shutdown_prof_masks(struct ice_hw *hw, enum ice_block blk) 1639 { 1640 u16 i; 1641 1642 mutex_lock(&hw->blk[blk].masks.lock); 1643 1644 for (i = hw->blk[blk].masks.first; 1645 i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++) { 1646 ice_write_prof_mask_reg(hw, blk, i, 0, 0); 1647 1648 hw->blk[blk].masks.masks[i].in_use = false; 1649 hw->blk[blk].masks.masks[i].idx = 0; 1650 hw->blk[blk].masks.masks[i].mask = 0; 1651 } 1652 1653 mutex_unlock(&hw->blk[blk].masks.lock); 1654 mutex_destroy(&hw->blk[blk].masks.lock); 1655 } 1656 1657 /** 1658 * ice_shutdown_all_prof_masks - releases all locks for masking 1659 * @hw: pointer to the HW struct 1660 * 1661 * This should be called before unloading the driver 1662 */ 1663 static void ice_shutdown_all_prof_masks(struct ice_hw *hw) 1664 { 1665 ice_shutdown_prof_masks(hw, ICE_BLK_RSS); 1666 ice_shutdown_prof_masks(hw, ICE_BLK_FD); 1667 } 1668 1669 /** 1670 * ice_update_prof_masking - set registers according to masking 1671 * @hw: pointer to the HW struct 1672 * @blk: hardware block 1673 * @prof_id: profile ID 1674 * @masks: masks 1675 */ 1676 static int 1677 ice_update_prof_masking(struct ice_hw *hw, enum ice_block blk, u16 prof_id, 1678 u16 *masks) 1679 { 1680 bool err = false; 1681 u32 ena_mask = 0; 1682 u16 idx; 1683 u16 i; 1684 1685 /* Only support FD and RSS masking, otherwise nothing to be done */ 1686 if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) 1687 return 0; 1688 1689 for (i = 0; i < hw->blk[blk].es.fvw; i++) 1690 if (masks[i] && masks[i] != 0xFFFF) { 1691 if (!ice_alloc_prof_mask(hw, blk, i, masks[i], &idx)) { 1692 ena_mask |= BIT(idx); 1693 } else { 1694 /* not enough bitmaps */ 1695 err = true; 1696 break; 1697 } 1698 } 1699 1700 if (err) { 1701 /* free any bitmaps we have allocated */ 1702 for (i = 0; i < BITS_PER_BYTE * sizeof(ena_mask); i++) 1703 if (ena_mask & BIT(i)) 1704 ice_free_prof_mask(hw, blk, i); 1705 1706 return -EIO; 1707 } 1708 1709 /* enable the masks for this profile */ 1710 ice_write_prof_mask_enable_res(hw, blk, prof_id, ena_mask); 1711 1712 /* store enabled masks with profile so that they can be freed later */ 1713 hw->blk[blk].es.mask_ena[prof_id] = ena_mask; 1714 1715 return 0; 1716 } 1717 1718 /** 1719 * ice_write_es - write an extraction sequence to hardware 1720 * @hw: pointer to the HW struct 1721 * @blk: the block in which to write the extraction sequence 1722 * @prof_id: the profile ID to write 1723 * @fv: pointer to the extraction sequence to write - NULL to clear extraction 1724 */ 1725 static void 1726 ice_write_es(struct ice_hw *hw, enum ice_block blk, u8 prof_id, 1727 struct ice_fv_word *fv) 1728 { 1729 u16 off; 1730 1731 off = prof_id * hw->blk[blk].es.fvw; 1732 if (!fv) { 1733 memset(&hw->blk[blk].es.t[off], 0, 1734 hw->blk[blk].es.fvw * sizeof(*fv)); 1735 hw->blk[blk].es.written[prof_id] = false; 1736 } else { 1737 memcpy(&hw->blk[blk].es.t[off], fv, 1738 hw->blk[blk].es.fvw * sizeof(*fv)); 1739 } 1740 } 1741 1742 /** 1743 * ice_prof_dec_ref - decrement reference count for profile 1744 * @hw: pointer to the HW struct 1745 * @blk: the block from which to free the profile ID 1746 * @prof_id: the profile ID for which to decrement the reference count 1747 */ 1748 static int 1749 ice_prof_dec_ref(struct ice_hw *hw, enum ice_block blk, u8 prof_id) 1750 { 1751 if (prof_id > hw->blk[blk].es.count) 1752 return -EINVAL; 1753 1754 if (hw->blk[blk].es.ref_count[prof_id] > 0) { 1755 if (!--hw->blk[blk].es.ref_count[prof_id]) { 1756 ice_write_es(hw, blk, prof_id, NULL); 1757 ice_free_prof_masks(hw, blk, prof_id); 1758 return ice_free_prof_id(hw, blk, prof_id); 1759 } 1760 } 1761 1762 return 0; 1763 } 1764 1765 /* Block / table section IDs */ 1766 static const u32 ice_blk_sids[ICE_BLK_COUNT][ICE_SID_OFF_COUNT] = { 1767 /* SWITCH */ 1768 { ICE_SID_XLT1_SW, 1769 ICE_SID_XLT2_SW, 1770 ICE_SID_PROFID_TCAM_SW, 1771 ICE_SID_PROFID_REDIR_SW, 1772 ICE_SID_FLD_VEC_SW 1773 }, 1774 1775 /* ACL */ 1776 { ICE_SID_XLT1_ACL, 1777 ICE_SID_XLT2_ACL, 1778 ICE_SID_PROFID_TCAM_ACL, 1779 ICE_SID_PROFID_REDIR_ACL, 1780 ICE_SID_FLD_VEC_ACL 1781 }, 1782 1783 /* FD */ 1784 { ICE_SID_XLT1_FD, 1785 ICE_SID_XLT2_FD, 1786 ICE_SID_PROFID_TCAM_FD, 1787 ICE_SID_PROFID_REDIR_FD, 1788 ICE_SID_FLD_VEC_FD 1789 }, 1790 1791 /* RSS */ 1792 { ICE_SID_XLT1_RSS, 1793 ICE_SID_XLT2_RSS, 1794 ICE_SID_PROFID_TCAM_RSS, 1795 ICE_SID_PROFID_REDIR_RSS, 1796 ICE_SID_FLD_VEC_RSS 1797 }, 1798 1799 /* PE */ 1800 { ICE_SID_XLT1_PE, 1801 ICE_SID_XLT2_PE, 1802 ICE_SID_PROFID_TCAM_PE, 1803 ICE_SID_PROFID_REDIR_PE, 1804 ICE_SID_FLD_VEC_PE 1805 } 1806 }; 1807 1808 /** 1809 * ice_init_sw_xlt1_db - init software XLT1 database from HW tables 1810 * @hw: pointer to the hardware structure 1811 * @blk: the HW block to initialize 1812 */ 1813 static void ice_init_sw_xlt1_db(struct ice_hw *hw, enum ice_block blk) 1814 { 1815 u16 pt; 1816 1817 for (pt = 0; pt < hw->blk[blk].xlt1.count; pt++) { 1818 u8 ptg; 1819 1820 ptg = hw->blk[blk].xlt1.t[pt]; 1821 if (ptg != ICE_DEFAULT_PTG) { 1822 ice_ptg_alloc_val(hw, blk, ptg); 1823 ice_ptg_add_mv_ptype(hw, blk, pt, ptg); 1824 } 1825 } 1826 } 1827 1828 /** 1829 * ice_init_sw_xlt2_db - init software XLT2 database from HW tables 1830 * @hw: pointer to the hardware structure 1831 * @blk: the HW block to initialize 1832 */ 1833 static void ice_init_sw_xlt2_db(struct ice_hw *hw, enum ice_block blk) 1834 { 1835 u16 vsi; 1836 1837 for (vsi = 0; vsi < hw->blk[blk].xlt2.count; vsi++) { 1838 u16 vsig; 1839 1840 vsig = hw->blk[blk].xlt2.t[vsi]; 1841 if (vsig) { 1842 ice_vsig_alloc_val(hw, blk, vsig); 1843 ice_vsig_add_mv_vsi(hw, blk, vsi, vsig); 1844 /* no changes at this time, since this has been 1845 * initialized from the original package 1846 */ 1847 hw->blk[blk].xlt2.vsis[vsi].changed = 0; 1848 } 1849 } 1850 } 1851 1852 /** 1853 * ice_init_sw_db - init software database from HW tables 1854 * @hw: pointer to the hardware structure 1855 */ 1856 static void ice_init_sw_db(struct ice_hw *hw) 1857 { 1858 u16 i; 1859 1860 for (i = 0; i < ICE_BLK_COUNT; i++) { 1861 ice_init_sw_xlt1_db(hw, (enum ice_block)i); 1862 ice_init_sw_xlt2_db(hw, (enum ice_block)i); 1863 } 1864 } 1865 1866 /** 1867 * ice_fill_tbl - Reads content of a single table type into database 1868 * @hw: pointer to the hardware structure 1869 * @block_id: Block ID of the table to copy 1870 * @sid: Section ID of the table to copy 1871 * 1872 * Will attempt to read the entire content of a given table of a single block 1873 * into the driver database. We assume that the buffer will always 1874 * be as large or larger than the data contained in the package. If 1875 * this condition is not met, there is most likely an error in the package 1876 * contents. 1877 */ 1878 static void ice_fill_tbl(struct ice_hw *hw, enum ice_block block_id, u32 sid) 1879 { 1880 u32 dst_len, sect_len, offset = 0; 1881 struct ice_prof_redir_section *pr; 1882 struct ice_prof_id_section *pid; 1883 struct ice_xlt1_section *xlt1; 1884 struct ice_xlt2_section *xlt2; 1885 struct ice_sw_fv_section *es; 1886 struct ice_pkg_enum state; 1887 u8 *src, *dst; 1888 void *sect; 1889 1890 /* if the HW segment pointer is null then the first iteration of 1891 * ice_pkg_enum_section() will fail. In this case the HW tables will 1892 * not be filled and return success. 1893 */ 1894 if (!hw->seg) { 1895 ice_debug(hw, ICE_DBG_PKG, "hw->seg is NULL, tables are not filled\n"); 1896 return; 1897 } 1898 1899 memset(&state, 0, sizeof(state)); 1900 1901 sect = ice_pkg_enum_section(hw->seg, &state, sid); 1902 1903 while (sect) { 1904 switch (sid) { 1905 case ICE_SID_XLT1_SW: 1906 case ICE_SID_XLT1_FD: 1907 case ICE_SID_XLT1_RSS: 1908 case ICE_SID_XLT1_ACL: 1909 case ICE_SID_XLT1_PE: 1910 xlt1 = sect; 1911 src = xlt1->value; 1912 sect_len = le16_to_cpu(xlt1->count) * 1913 sizeof(*hw->blk[block_id].xlt1.t); 1914 dst = hw->blk[block_id].xlt1.t; 1915 dst_len = hw->blk[block_id].xlt1.count * 1916 sizeof(*hw->blk[block_id].xlt1.t); 1917 break; 1918 case ICE_SID_XLT2_SW: 1919 case ICE_SID_XLT2_FD: 1920 case ICE_SID_XLT2_RSS: 1921 case ICE_SID_XLT2_ACL: 1922 case ICE_SID_XLT2_PE: 1923 xlt2 = sect; 1924 src = (__force u8 *)xlt2->value; 1925 sect_len = le16_to_cpu(xlt2->count) * 1926 sizeof(*hw->blk[block_id].xlt2.t); 1927 dst = (u8 *)hw->blk[block_id].xlt2.t; 1928 dst_len = hw->blk[block_id].xlt2.count * 1929 sizeof(*hw->blk[block_id].xlt2.t); 1930 break; 1931 case ICE_SID_PROFID_TCAM_SW: 1932 case ICE_SID_PROFID_TCAM_FD: 1933 case ICE_SID_PROFID_TCAM_RSS: 1934 case ICE_SID_PROFID_TCAM_ACL: 1935 case ICE_SID_PROFID_TCAM_PE: 1936 pid = sect; 1937 src = (u8 *)pid->entry; 1938 sect_len = le16_to_cpu(pid->count) * 1939 sizeof(*hw->blk[block_id].prof.t); 1940 dst = (u8 *)hw->blk[block_id].prof.t; 1941 dst_len = hw->blk[block_id].prof.count * 1942 sizeof(*hw->blk[block_id].prof.t); 1943 break; 1944 case ICE_SID_PROFID_REDIR_SW: 1945 case ICE_SID_PROFID_REDIR_FD: 1946 case ICE_SID_PROFID_REDIR_RSS: 1947 case ICE_SID_PROFID_REDIR_ACL: 1948 case ICE_SID_PROFID_REDIR_PE: 1949 pr = sect; 1950 src = pr->redir_value; 1951 sect_len = le16_to_cpu(pr->count) * 1952 sizeof(*hw->blk[block_id].prof_redir.t); 1953 dst = hw->blk[block_id].prof_redir.t; 1954 dst_len = hw->blk[block_id].prof_redir.count * 1955 sizeof(*hw->blk[block_id].prof_redir.t); 1956 break; 1957 case ICE_SID_FLD_VEC_SW: 1958 case ICE_SID_FLD_VEC_FD: 1959 case ICE_SID_FLD_VEC_RSS: 1960 case ICE_SID_FLD_VEC_ACL: 1961 case ICE_SID_FLD_VEC_PE: 1962 es = sect; 1963 src = (u8 *)es->fv; 1964 sect_len = (u32)(le16_to_cpu(es->count) * 1965 hw->blk[block_id].es.fvw) * 1966 sizeof(*hw->blk[block_id].es.t); 1967 dst = (u8 *)hw->blk[block_id].es.t; 1968 dst_len = (u32)(hw->blk[block_id].es.count * 1969 hw->blk[block_id].es.fvw) * 1970 sizeof(*hw->blk[block_id].es.t); 1971 break; 1972 default: 1973 return; 1974 } 1975 1976 /* if the section offset exceeds destination length, terminate 1977 * table fill. 1978 */ 1979 if (offset > dst_len) 1980 return; 1981 1982 /* if the sum of section size and offset exceed destination size 1983 * then we are out of bounds of the HW table size for that PF. 1984 * Changing section length to fill the remaining table space 1985 * of that PF. 1986 */ 1987 if ((offset + sect_len) > dst_len) 1988 sect_len = dst_len - offset; 1989 1990 memcpy(dst + offset, src, sect_len); 1991 offset += sect_len; 1992 sect = ice_pkg_enum_section(NULL, &state, sid); 1993 } 1994 } 1995 1996 /** 1997 * ice_fill_blk_tbls - Read package context for tables 1998 * @hw: pointer to the hardware structure 1999 * 2000 * Reads the current package contents and populates the driver 2001 * database with the data iteratively for all advanced feature 2002 * blocks. Assume that the HW tables have been allocated. 2003 */ 2004 void ice_fill_blk_tbls(struct ice_hw *hw) 2005 { 2006 u8 i; 2007 2008 for (i = 0; i < ICE_BLK_COUNT; i++) { 2009 enum ice_block blk_id = (enum ice_block)i; 2010 2011 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].xlt1.sid); 2012 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].xlt2.sid); 2013 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].prof.sid); 2014 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].prof_redir.sid); 2015 ice_fill_tbl(hw, blk_id, hw->blk[blk_id].es.sid); 2016 } 2017 2018 ice_init_sw_db(hw); 2019 } 2020 2021 /** 2022 * ice_free_prof_map - free profile map 2023 * @hw: pointer to the hardware structure 2024 * @blk_idx: HW block index 2025 */ 2026 static void ice_free_prof_map(struct ice_hw *hw, u8 blk_idx) 2027 { 2028 struct ice_es *es = &hw->blk[blk_idx].es; 2029 struct ice_prof_map *del, *tmp; 2030 2031 mutex_lock(&es->prof_map_lock); 2032 list_for_each_entry_safe(del, tmp, &es->prof_map, list) { 2033 list_del(&del->list); 2034 devm_kfree(ice_hw_to_dev(hw), del); 2035 } 2036 INIT_LIST_HEAD(&es->prof_map); 2037 mutex_unlock(&es->prof_map_lock); 2038 } 2039 2040 /** 2041 * ice_free_flow_profs - free flow profile entries 2042 * @hw: pointer to the hardware structure 2043 * @blk_idx: HW block index 2044 */ 2045 static void ice_free_flow_profs(struct ice_hw *hw, u8 blk_idx) 2046 { 2047 struct ice_flow_prof *p, *tmp; 2048 2049 mutex_lock(&hw->fl_profs_locks[blk_idx]); 2050 list_for_each_entry_safe(p, tmp, &hw->fl_profs[blk_idx], l_entry) { 2051 struct ice_flow_entry *e, *t; 2052 2053 list_for_each_entry_safe(e, t, &p->entries, l_entry) 2054 ice_flow_rem_entry(hw, (enum ice_block)blk_idx, 2055 ICE_FLOW_ENTRY_HNDL(e)); 2056 2057 list_del(&p->l_entry); 2058 2059 mutex_destroy(&p->entries_lock); 2060 devm_kfree(ice_hw_to_dev(hw), p); 2061 } 2062 mutex_unlock(&hw->fl_profs_locks[blk_idx]); 2063 2064 /* if driver is in reset and tables are being cleared 2065 * re-initialize the flow profile list heads 2066 */ 2067 INIT_LIST_HEAD(&hw->fl_profs[blk_idx]); 2068 } 2069 2070 /** 2071 * ice_free_vsig_tbl - free complete VSIG table entries 2072 * @hw: pointer to the hardware structure 2073 * @blk: the HW block on which to free the VSIG table entries 2074 */ 2075 static void ice_free_vsig_tbl(struct ice_hw *hw, enum ice_block blk) 2076 { 2077 u16 i; 2078 2079 if (!hw->blk[blk].xlt2.vsig_tbl) 2080 return; 2081 2082 for (i = 1; i < ICE_MAX_VSIGS; i++) 2083 if (hw->blk[blk].xlt2.vsig_tbl[i].in_use) 2084 ice_vsig_free(hw, blk, i); 2085 } 2086 2087 /** 2088 * ice_free_hw_tbls - free hardware table memory 2089 * @hw: pointer to the hardware structure 2090 */ 2091 void ice_free_hw_tbls(struct ice_hw *hw) 2092 { 2093 struct ice_rss_cfg *r, *rt; 2094 u8 i; 2095 2096 for (i = 0; i < ICE_BLK_COUNT; i++) { 2097 if (hw->blk[i].is_list_init) { 2098 struct ice_es *es = &hw->blk[i].es; 2099 2100 ice_free_prof_map(hw, i); 2101 mutex_destroy(&es->prof_map_lock); 2102 2103 ice_free_flow_profs(hw, i); 2104 mutex_destroy(&hw->fl_profs_locks[i]); 2105 2106 hw->blk[i].is_list_init = false; 2107 } 2108 ice_free_vsig_tbl(hw, (enum ice_block)i); 2109 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt1.ptypes); 2110 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt1.ptg_tbl); 2111 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt1.t); 2112 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt2.t); 2113 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt2.vsig_tbl); 2114 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].xlt2.vsis); 2115 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].prof.t); 2116 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].prof_redir.t); 2117 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.t); 2118 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.ref_count); 2119 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.written); 2120 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.mask_ena); 2121 devm_kfree(ice_hw_to_dev(hw), hw->blk[i].prof_id.id); 2122 } 2123 2124 list_for_each_entry_safe(r, rt, &hw->rss_list_head, l_entry) { 2125 list_del(&r->l_entry); 2126 devm_kfree(ice_hw_to_dev(hw), r); 2127 } 2128 mutex_destroy(&hw->rss_locks); 2129 ice_shutdown_all_prof_masks(hw); 2130 memset(hw->blk, 0, sizeof(hw->blk)); 2131 } 2132 2133 /** 2134 * ice_init_flow_profs - init flow profile locks and list heads 2135 * @hw: pointer to the hardware structure 2136 * @blk_idx: HW block index 2137 */ 2138 static void ice_init_flow_profs(struct ice_hw *hw, u8 blk_idx) 2139 { 2140 mutex_init(&hw->fl_profs_locks[blk_idx]); 2141 INIT_LIST_HEAD(&hw->fl_profs[blk_idx]); 2142 } 2143 2144 /** 2145 * ice_clear_hw_tbls - clear HW tables and flow profiles 2146 * @hw: pointer to the hardware structure 2147 */ 2148 void ice_clear_hw_tbls(struct ice_hw *hw) 2149 { 2150 u8 i; 2151 2152 for (i = 0; i < ICE_BLK_COUNT; i++) { 2153 struct ice_prof_redir *prof_redir = &hw->blk[i].prof_redir; 2154 struct ice_prof_id *prof_id = &hw->blk[i].prof_id; 2155 struct ice_prof_tcam *prof = &hw->blk[i].prof; 2156 struct ice_xlt1 *xlt1 = &hw->blk[i].xlt1; 2157 struct ice_xlt2 *xlt2 = &hw->blk[i].xlt2; 2158 struct ice_es *es = &hw->blk[i].es; 2159 2160 if (hw->blk[i].is_list_init) { 2161 ice_free_prof_map(hw, i); 2162 ice_free_flow_profs(hw, i); 2163 } 2164 2165 ice_free_vsig_tbl(hw, (enum ice_block)i); 2166 2167 memset(xlt1->ptypes, 0, xlt1->count * sizeof(*xlt1->ptypes)); 2168 memset(xlt1->ptg_tbl, 0, 2169 ICE_MAX_PTGS * sizeof(*xlt1->ptg_tbl)); 2170 memset(xlt1->t, 0, xlt1->count * sizeof(*xlt1->t)); 2171 2172 memset(xlt2->vsis, 0, xlt2->count * sizeof(*xlt2->vsis)); 2173 memset(xlt2->vsig_tbl, 0, 2174 xlt2->count * sizeof(*xlt2->vsig_tbl)); 2175 memset(xlt2->t, 0, xlt2->count * sizeof(*xlt2->t)); 2176 2177 memset(prof->t, 0, prof->count * sizeof(*prof->t)); 2178 memset(prof_redir->t, 0, 2179 prof_redir->count * sizeof(*prof_redir->t)); 2180 2181 memset(es->t, 0, es->count * sizeof(*es->t) * es->fvw); 2182 memset(es->ref_count, 0, es->count * sizeof(*es->ref_count)); 2183 memset(es->written, 0, es->count * sizeof(*es->written)); 2184 memset(es->mask_ena, 0, es->count * sizeof(*es->mask_ena)); 2185 2186 memset(prof_id->id, 0, prof_id->count * sizeof(*prof_id->id)); 2187 } 2188 } 2189 2190 /** 2191 * ice_init_hw_tbls - init hardware table memory 2192 * @hw: pointer to the hardware structure 2193 */ 2194 int ice_init_hw_tbls(struct ice_hw *hw) 2195 { 2196 u8 i; 2197 2198 mutex_init(&hw->rss_locks); 2199 INIT_LIST_HEAD(&hw->rss_list_head); 2200 ice_init_all_prof_masks(hw); 2201 for (i = 0; i < ICE_BLK_COUNT; i++) { 2202 struct ice_prof_redir *prof_redir = &hw->blk[i].prof_redir; 2203 struct ice_prof_id *prof_id = &hw->blk[i].prof_id; 2204 struct ice_prof_tcam *prof = &hw->blk[i].prof; 2205 struct ice_xlt1 *xlt1 = &hw->blk[i].xlt1; 2206 struct ice_xlt2 *xlt2 = &hw->blk[i].xlt2; 2207 struct ice_es *es = &hw->blk[i].es; 2208 u16 j; 2209 2210 if (hw->blk[i].is_list_init) 2211 continue; 2212 2213 ice_init_flow_profs(hw, i); 2214 mutex_init(&es->prof_map_lock); 2215 INIT_LIST_HEAD(&es->prof_map); 2216 hw->blk[i].is_list_init = true; 2217 2218 hw->blk[i].overwrite = blk_sizes[i].overwrite; 2219 es->reverse = blk_sizes[i].reverse; 2220 2221 xlt1->sid = ice_blk_sids[i][ICE_SID_XLT1_OFF]; 2222 xlt1->count = blk_sizes[i].xlt1; 2223 2224 xlt1->ptypes = devm_kcalloc(ice_hw_to_dev(hw), xlt1->count, 2225 sizeof(*xlt1->ptypes), GFP_KERNEL); 2226 2227 if (!xlt1->ptypes) 2228 goto err; 2229 2230 xlt1->ptg_tbl = devm_kcalloc(ice_hw_to_dev(hw), ICE_MAX_PTGS, 2231 sizeof(*xlt1->ptg_tbl), 2232 GFP_KERNEL); 2233 2234 if (!xlt1->ptg_tbl) 2235 goto err; 2236 2237 xlt1->t = devm_kcalloc(ice_hw_to_dev(hw), xlt1->count, 2238 sizeof(*xlt1->t), GFP_KERNEL); 2239 if (!xlt1->t) 2240 goto err; 2241 2242 xlt2->sid = ice_blk_sids[i][ICE_SID_XLT2_OFF]; 2243 xlt2->count = blk_sizes[i].xlt2; 2244 2245 xlt2->vsis = devm_kcalloc(ice_hw_to_dev(hw), xlt2->count, 2246 sizeof(*xlt2->vsis), GFP_KERNEL); 2247 2248 if (!xlt2->vsis) 2249 goto err; 2250 2251 xlt2->vsig_tbl = devm_kcalloc(ice_hw_to_dev(hw), xlt2->count, 2252 sizeof(*xlt2->vsig_tbl), 2253 GFP_KERNEL); 2254 if (!xlt2->vsig_tbl) 2255 goto err; 2256 2257 for (j = 0; j < xlt2->count; j++) 2258 INIT_LIST_HEAD(&xlt2->vsig_tbl[j].prop_lst); 2259 2260 xlt2->t = devm_kcalloc(ice_hw_to_dev(hw), xlt2->count, 2261 sizeof(*xlt2->t), GFP_KERNEL); 2262 if (!xlt2->t) 2263 goto err; 2264 2265 prof->sid = ice_blk_sids[i][ICE_SID_PR_OFF]; 2266 prof->count = blk_sizes[i].prof_tcam; 2267 prof->max_prof_id = blk_sizes[i].prof_id; 2268 prof->cdid_bits = blk_sizes[i].prof_cdid_bits; 2269 prof->t = devm_kcalloc(ice_hw_to_dev(hw), prof->count, 2270 sizeof(*prof->t), GFP_KERNEL); 2271 2272 if (!prof->t) 2273 goto err; 2274 2275 prof_redir->sid = ice_blk_sids[i][ICE_SID_PR_REDIR_OFF]; 2276 prof_redir->count = blk_sizes[i].prof_redir; 2277 prof_redir->t = devm_kcalloc(ice_hw_to_dev(hw), 2278 prof_redir->count, 2279 sizeof(*prof_redir->t), 2280 GFP_KERNEL); 2281 2282 if (!prof_redir->t) 2283 goto err; 2284 2285 es->sid = ice_blk_sids[i][ICE_SID_ES_OFF]; 2286 es->count = blk_sizes[i].es; 2287 es->fvw = blk_sizes[i].fvw; 2288 es->t = devm_kcalloc(ice_hw_to_dev(hw), 2289 (u32)(es->count * es->fvw), 2290 sizeof(*es->t), GFP_KERNEL); 2291 if (!es->t) 2292 goto err; 2293 2294 es->ref_count = devm_kcalloc(ice_hw_to_dev(hw), es->count, 2295 sizeof(*es->ref_count), 2296 GFP_KERNEL); 2297 if (!es->ref_count) 2298 goto err; 2299 2300 es->written = devm_kcalloc(ice_hw_to_dev(hw), es->count, 2301 sizeof(*es->written), GFP_KERNEL); 2302 if (!es->written) 2303 goto err; 2304 2305 es->mask_ena = devm_kcalloc(ice_hw_to_dev(hw), es->count, 2306 sizeof(*es->mask_ena), GFP_KERNEL); 2307 if (!es->mask_ena) 2308 goto err; 2309 2310 prof_id->count = blk_sizes[i].prof_id; 2311 prof_id->id = devm_kcalloc(ice_hw_to_dev(hw), prof_id->count, 2312 sizeof(*prof_id->id), GFP_KERNEL); 2313 if (!prof_id->id) 2314 goto err; 2315 } 2316 return 0; 2317 2318 err: 2319 ice_free_hw_tbls(hw); 2320 return -ENOMEM; 2321 } 2322 2323 /** 2324 * ice_prof_gen_key - generate profile ID key 2325 * @hw: pointer to the HW struct 2326 * @blk: the block in which to write profile ID to 2327 * @ptg: packet type group (PTG) portion of key 2328 * @vsig: VSIG portion of key 2329 * @cdid: CDID portion of key 2330 * @flags: flag portion of key 2331 * @vl_msk: valid mask 2332 * @dc_msk: don't care mask 2333 * @nm_msk: never match mask 2334 * @key: output of profile ID key 2335 */ 2336 static int 2337 ice_prof_gen_key(struct ice_hw *hw, enum ice_block blk, u8 ptg, u16 vsig, 2338 u8 cdid, u16 flags, u8 vl_msk[ICE_TCAM_KEY_VAL_SZ], 2339 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ], u8 nm_msk[ICE_TCAM_KEY_VAL_SZ], 2340 u8 key[ICE_TCAM_KEY_SZ]) 2341 { 2342 struct ice_prof_id_key inkey; 2343 2344 inkey.xlt1 = ptg; 2345 inkey.xlt2_cdid = cpu_to_le16(vsig); 2346 inkey.flags = cpu_to_le16(flags); 2347 2348 switch (hw->blk[blk].prof.cdid_bits) { 2349 case 0: 2350 break; 2351 case 2: 2352 #define ICE_CD_2_M 0xC000U 2353 #define ICE_CD_2_S 14 2354 inkey.xlt2_cdid &= ~cpu_to_le16(ICE_CD_2_M); 2355 inkey.xlt2_cdid |= cpu_to_le16(BIT(cdid) << ICE_CD_2_S); 2356 break; 2357 case 4: 2358 #define ICE_CD_4_M 0xF000U 2359 #define ICE_CD_4_S 12 2360 inkey.xlt2_cdid &= ~cpu_to_le16(ICE_CD_4_M); 2361 inkey.xlt2_cdid |= cpu_to_le16(BIT(cdid) << ICE_CD_4_S); 2362 break; 2363 case 8: 2364 #define ICE_CD_8_M 0xFF00U 2365 #define ICE_CD_8_S 16 2366 inkey.xlt2_cdid &= ~cpu_to_le16(ICE_CD_8_M); 2367 inkey.xlt2_cdid |= cpu_to_le16(BIT(cdid) << ICE_CD_8_S); 2368 break; 2369 default: 2370 ice_debug(hw, ICE_DBG_PKG, "Error in profile config\n"); 2371 break; 2372 } 2373 2374 return ice_set_key(key, ICE_TCAM_KEY_SZ, (u8 *)&inkey, vl_msk, dc_msk, 2375 nm_msk, 0, ICE_TCAM_KEY_SZ / 2); 2376 } 2377 2378 /** 2379 * ice_tcam_write_entry - write TCAM entry 2380 * @hw: pointer to the HW struct 2381 * @blk: the block in which to write profile ID to 2382 * @idx: the entry index to write to 2383 * @prof_id: profile ID 2384 * @ptg: packet type group (PTG) portion of key 2385 * @vsig: VSIG portion of key 2386 * @cdid: CDID portion of key 2387 * @flags: flag portion of key 2388 * @vl_msk: valid mask 2389 * @dc_msk: don't care mask 2390 * @nm_msk: never match mask 2391 */ 2392 static int 2393 ice_tcam_write_entry(struct ice_hw *hw, enum ice_block blk, u16 idx, 2394 u8 prof_id, u8 ptg, u16 vsig, u8 cdid, u16 flags, 2395 u8 vl_msk[ICE_TCAM_KEY_VAL_SZ], 2396 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ], 2397 u8 nm_msk[ICE_TCAM_KEY_VAL_SZ]) 2398 { 2399 struct ice_prof_tcam_entry; 2400 int status; 2401 2402 status = ice_prof_gen_key(hw, blk, ptg, vsig, cdid, flags, vl_msk, 2403 dc_msk, nm_msk, hw->blk[blk].prof.t[idx].key); 2404 if (!status) { 2405 hw->blk[blk].prof.t[idx].addr = cpu_to_le16(idx); 2406 hw->blk[blk].prof.t[idx].prof_id = prof_id; 2407 } 2408 2409 return status; 2410 } 2411 2412 /** 2413 * ice_vsig_get_ref - returns number of VSIs belong to a VSIG 2414 * @hw: pointer to the hardware structure 2415 * @blk: HW block 2416 * @vsig: VSIG to query 2417 * @refs: pointer to variable to receive the reference count 2418 */ 2419 static int 2420 ice_vsig_get_ref(struct ice_hw *hw, enum ice_block blk, u16 vsig, u16 *refs) 2421 { 2422 u16 idx = vsig & ICE_VSIG_IDX_M; 2423 struct ice_vsig_vsi *ptr; 2424 2425 *refs = 0; 2426 2427 if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) 2428 return -ENOENT; 2429 2430 ptr = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 2431 while (ptr) { 2432 (*refs)++; 2433 ptr = ptr->next_vsi; 2434 } 2435 2436 return 0; 2437 } 2438 2439 /** 2440 * ice_has_prof_vsig - check to see if VSIG has a specific profile 2441 * @hw: pointer to the hardware structure 2442 * @blk: HW block 2443 * @vsig: VSIG to check against 2444 * @hdl: profile handle 2445 */ 2446 static bool 2447 ice_has_prof_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl) 2448 { 2449 u16 idx = vsig & ICE_VSIG_IDX_M; 2450 struct ice_vsig_prof *ent; 2451 2452 list_for_each_entry(ent, &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 2453 list) 2454 if (ent->profile_cookie == hdl) 2455 return true; 2456 2457 ice_debug(hw, ICE_DBG_INIT, "Characteristic list for VSI group %d not found.\n", 2458 vsig); 2459 return false; 2460 } 2461 2462 /** 2463 * ice_prof_bld_es - build profile ID extraction sequence changes 2464 * @hw: pointer to the HW struct 2465 * @blk: hardware block 2466 * @bld: the update package buffer build to add to 2467 * @chgs: the list of changes to make in hardware 2468 */ 2469 static int 2470 ice_prof_bld_es(struct ice_hw *hw, enum ice_block blk, 2471 struct ice_buf_build *bld, struct list_head *chgs) 2472 { 2473 u16 vec_size = hw->blk[blk].es.fvw * sizeof(struct ice_fv_word); 2474 struct ice_chs_chg *tmp; 2475 2476 list_for_each_entry(tmp, chgs, list_entry) 2477 if (tmp->type == ICE_PTG_ES_ADD && tmp->add_prof) { 2478 u16 off = tmp->prof_id * hw->blk[blk].es.fvw; 2479 struct ice_pkg_es *p; 2480 u32 id; 2481 2482 id = ice_sect_id(blk, ICE_VEC_TBL); 2483 p = ice_pkg_buf_alloc_section(bld, id, 2484 struct_size(p, es, 1) + 2485 vec_size - 2486 sizeof(p->es[0])); 2487 2488 if (!p) 2489 return -ENOSPC; 2490 2491 p->count = cpu_to_le16(1); 2492 p->offset = cpu_to_le16(tmp->prof_id); 2493 2494 memcpy(p->es, &hw->blk[blk].es.t[off], vec_size); 2495 } 2496 2497 return 0; 2498 } 2499 2500 /** 2501 * ice_prof_bld_tcam - build profile ID TCAM changes 2502 * @hw: pointer to the HW struct 2503 * @blk: hardware block 2504 * @bld: the update package buffer build to add to 2505 * @chgs: the list of changes to make in hardware 2506 */ 2507 static int 2508 ice_prof_bld_tcam(struct ice_hw *hw, enum ice_block blk, 2509 struct ice_buf_build *bld, struct list_head *chgs) 2510 { 2511 struct ice_chs_chg *tmp; 2512 2513 list_for_each_entry(tmp, chgs, list_entry) 2514 if (tmp->type == ICE_TCAM_ADD && tmp->add_tcam_idx) { 2515 struct ice_prof_id_section *p; 2516 u32 id; 2517 2518 id = ice_sect_id(blk, ICE_PROF_TCAM); 2519 p = ice_pkg_buf_alloc_section(bld, id, 2520 struct_size(p, entry, 1)); 2521 2522 if (!p) 2523 return -ENOSPC; 2524 2525 p->count = cpu_to_le16(1); 2526 p->entry[0].addr = cpu_to_le16(tmp->tcam_idx); 2527 p->entry[0].prof_id = tmp->prof_id; 2528 2529 memcpy(p->entry[0].key, 2530 &hw->blk[blk].prof.t[tmp->tcam_idx].key, 2531 sizeof(hw->blk[blk].prof.t->key)); 2532 } 2533 2534 return 0; 2535 } 2536 2537 /** 2538 * ice_prof_bld_xlt1 - build XLT1 changes 2539 * @blk: hardware block 2540 * @bld: the update package buffer build to add to 2541 * @chgs: the list of changes to make in hardware 2542 */ 2543 static int 2544 ice_prof_bld_xlt1(enum ice_block blk, struct ice_buf_build *bld, 2545 struct list_head *chgs) 2546 { 2547 struct ice_chs_chg *tmp; 2548 2549 list_for_each_entry(tmp, chgs, list_entry) 2550 if (tmp->type == ICE_PTG_ES_ADD && tmp->add_ptg) { 2551 struct ice_xlt1_section *p; 2552 u32 id; 2553 2554 id = ice_sect_id(blk, ICE_XLT1); 2555 p = ice_pkg_buf_alloc_section(bld, id, 2556 struct_size(p, value, 1)); 2557 2558 if (!p) 2559 return -ENOSPC; 2560 2561 p->count = cpu_to_le16(1); 2562 p->offset = cpu_to_le16(tmp->ptype); 2563 p->value[0] = tmp->ptg; 2564 } 2565 2566 return 0; 2567 } 2568 2569 /** 2570 * ice_prof_bld_xlt2 - build XLT2 changes 2571 * @blk: hardware block 2572 * @bld: the update package buffer build to add to 2573 * @chgs: the list of changes to make in hardware 2574 */ 2575 static int 2576 ice_prof_bld_xlt2(enum ice_block blk, struct ice_buf_build *bld, 2577 struct list_head *chgs) 2578 { 2579 struct ice_chs_chg *tmp; 2580 2581 list_for_each_entry(tmp, chgs, list_entry) { 2582 struct ice_xlt2_section *p; 2583 u32 id; 2584 2585 switch (tmp->type) { 2586 case ICE_VSIG_ADD: 2587 case ICE_VSI_MOVE: 2588 case ICE_VSIG_REM: 2589 id = ice_sect_id(blk, ICE_XLT2); 2590 p = ice_pkg_buf_alloc_section(bld, id, 2591 struct_size(p, value, 1)); 2592 2593 if (!p) 2594 return -ENOSPC; 2595 2596 p->count = cpu_to_le16(1); 2597 p->offset = cpu_to_le16(tmp->vsi); 2598 p->value[0] = cpu_to_le16(tmp->vsig); 2599 break; 2600 default: 2601 break; 2602 } 2603 } 2604 2605 return 0; 2606 } 2607 2608 /** 2609 * ice_upd_prof_hw - update hardware using the change list 2610 * @hw: pointer to the HW struct 2611 * @blk: hardware block 2612 * @chgs: the list of changes to make in hardware 2613 */ 2614 static int 2615 ice_upd_prof_hw(struct ice_hw *hw, enum ice_block blk, 2616 struct list_head *chgs) 2617 { 2618 struct ice_buf_build *b; 2619 struct ice_chs_chg *tmp; 2620 u16 pkg_sects; 2621 u16 xlt1 = 0; 2622 u16 xlt2 = 0; 2623 u16 tcam = 0; 2624 u16 es = 0; 2625 int status; 2626 u16 sects; 2627 2628 /* count number of sections we need */ 2629 list_for_each_entry(tmp, chgs, list_entry) { 2630 switch (tmp->type) { 2631 case ICE_PTG_ES_ADD: 2632 if (tmp->add_ptg) 2633 xlt1++; 2634 if (tmp->add_prof) 2635 es++; 2636 break; 2637 case ICE_TCAM_ADD: 2638 tcam++; 2639 break; 2640 case ICE_VSIG_ADD: 2641 case ICE_VSI_MOVE: 2642 case ICE_VSIG_REM: 2643 xlt2++; 2644 break; 2645 default: 2646 break; 2647 } 2648 } 2649 sects = xlt1 + xlt2 + tcam + es; 2650 2651 if (!sects) 2652 return 0; 2653 2654 /* Build update package buffer */ 2655 b = ice_pkg_buf_alloc(hw); 2656 if (!b) 2657 return -ENOMEM; 2658 2659 status = ice_pkg_buf_reserve_section(b, sects); 2660 if (status) 2661 goto error_tmp; 2662 2663 /* Preserve order of table update: ES, TCAM, PTG, VSIG */ 2664 if (es) { 2665 status = ice_prof_bld_es(hw, blk, b, chgs); 2666 if (status) 2667 goto error_tmp; 2668 } 2669 2670 if (tcam) { 2671 status = ice_prof_bld_tcam(hw, blk, b, chgs); 2672 if (status) 2673 goto error_tmp; 2674 } 2675 2676 if (xlt1) { 2677 status = ice_prof_bld_xlt1(blk, b, chgs); 2678 if (status) 2679 goto error_tmp; 2680 } 2681 2682 if (xlt2) { 2683 status = ice_prof_bld_xlt2(blk, b, chgs); 2684 if (status) 2685 goto error_tmp; 2686 } 2687 2688 /* After package buffer build check if the section count in buffer is 2689 * non-zero and matches the number of sections detected for package 2690 * update. 2691 */ 2692 pkg_sects = ice_pkg_buf_get_active_sections(b); 2693 if (!pkg_sects || pkg_sects != sects) { 2694 status = -EINVAL; 2695 goto error_tmp; 2696 } 2697 2698 /* update package */ 2699 status = ice_update_pkg(hw, ice_pkg_buf(b), 1); 2700 if (status == -EIO) 2701 ice_debug(hw, ICE_DBG_INIT, "Unable to update HW profile\n"); 2702 2703 error_tmp: 2704 ice_pkg_buf_free(hw, b); 2705 return status; 2706 } 2707 2708 /** 2709 * ice_update_fd_mask - set Flow Director Field Vector mask for a profile 2710 * @hw: pointer to the HW struct 2711 * @prof_id: profile ID 2712 * @mask_sel: mask select 2713 * 2714 * This function enable any of the masks selected by the mask select parameter 2715 * for the profile specified. 2716 */ 2717 static void ice_update_fd_mask(struct ice_hw *hw, u16 prof_id, u32 mask_sel) 2718 { 2719 wr32(hw, GLQF_FDMASK_SEL(prof_id), mask_sel); 2720 2721 ice_debug(hw, ICE_DBG_INIT, "fd mask(%d): %x = %x\n", prof_id, 2722 GLQF_FDMASK_SEL(prof_id), mask_sel); 2723 } 2724 2725 struct ice_fd_src_dst_pair { 2726 u8 prot_id; 2727 u8 count; 2728 u16 off; 2729 }; 2730 2731 static const struct ice_fd_src_dst_pair ice_fd_pairs[] = { 2732 /* These are defined in pairs */ 2733 { ICE_PROT_IPV4_OF_OR_S, 2, 12 }, 2734 { ICE_PROT_IPV4_OF_OR_S, 2, 16 }, 2735 2736 { ICE_PROT_IPV4_IL, 2, 12 }, 2737 { ICE_PROT_IPV4_IL, 2, 16 }, 2738 2739 { ICE_PROT_IPV6_OF_OR_S, 8, 8 }, 2740 { ICE_PROT_IPV6_OF_OR_S, 8, 24 }, 2741 2742 { ICE_PROT_IPV6_IL, 8, 8 }, 2743 { ICE_PROT_IPV6_IL, 8, 24 }, 2744 2745 { ICE_PROT_TCP_IL, 1, 0 }, 2746 { ICE_PROT_TCP_IL, 1, 2 }, 2747 2748 { ICE_PROT_UDP_OF, 1, 0 }, 2749 { ICE_PROT_UDP_OF, 1, 2 }, 2750 2751 { ICE_PROT_UDP_IL_OR_S, 1, 0 }, 2752 { ICE_PROT_UDP_IL_OR_S, 1, 2 }, 2753 2754 { ICE_PROT_SCTP_IL, 1, 0 }, 2755 { ICE_PROT_SCTP_IL, 1, 2 } 2756 }; 2757 2758 #define ICE_FD_SRC_DST_PAIR_COUNT ARRAY_SIZE(ice_fd_pairs) 2759 2760 /** 2761 * ice_update_fd_swap - set register appropriately for a FD FV extraction 2762 * @hw: pointer to the HW struct 2763 * @prof_id: profile ID 2764 * @es: extraction sequence (length of array is determined by the block) 2765 */ 2766 static int 2767 ice_update_fd_swap(struct ice_hw *hw, u16 prof_id, struct ice_fv_word *es) 2768 { 2769 DECLARE_BITMAP(pair_list, ICE_FD_SRC_DST_PAIR_COUNT); 2770 u8 pair_start[ICE_FD_SRC_DST_PAIR_COUNT] = { 0 }; 2771 #define ICE_FD_FV_NOT_FOUND (-2) 2772 s8 first_free = ICE_FD_FV_NOT_FOUND; 2773 u8 used[ICE_MAX_FV_WORDS] = { 0 }; 2774 s8 orig_free, si; 2775 u32 mask_sel = 0; 2776 u8 i, j, k; 2777 2778 bitmap_zero(pair_list, ICE_FD_SRC_DST_PAIR_COUNT); 2779 2780 /* This code assumes that the Flow Director field vectors are assigned 2781 * from the end of the FV indexes working towards the zero index, that 2782 * only complete fields will be included and will be consecutive, and 2783 * that there are no gaps between valid indexes. 2784 */ 2785 2786 /* Determine swap fields present */ 2787 for (i = 0; i < hw->blk[ICE_BLK_FD].es.fvw; i++) { 2788 /* Find the first free entry, assuming right to left population. 2789 * This is where we can start adding additional pairs if needed. 2790 */ 2791 if (first_free == ICE_FD_FV_NOT_FOUND && es[i].prot_id != 2792 ICE_PROT_INVALID) 2793 first_free = i - 1; 2794 2795 for (j = 0; j < ICE_FD_SRC_DST_PAIR_COUNT; j++) 2796 if (es[i].prot_id == ice_fd_pairs[j].prot_id && 2797 es[i].off == ice_fd_pairs[j].off) { 2798 __set_bit(j, pair_list); 2799 pair_start[j] = i; 2800 } 2801 } 2802 2803 orig_free = first_free; 2804 2805 /* determine missing swap fields that need to be added */ 2806 for (i = 0; i < ICE_FD_SRC_DST_PAIR_COUNT; i += 2) { 2807 u8 bit1 = test_bit(i + 1, pair_list); 2808 u8 bit0 = test_bit(i, pair_list); 2809 2810 if (bit0 ^ bit1) { 2811 u8 index; 2812 2813 /* add the appropriate 'paired' entry */ 2814 if (!bit0) 2815 index = i; 2816 else 2817 index = i + 1; 2818 2819 /* check for room */ 2820 if (first_free + 1 < (s8)ice_fd_pairs[index].count) 2821 return -ENOSPC; 2822 2823 /* place in extraction sequence */ 2824 for (k = 0; k < ice_fd_pairs[index].count; k++) { 2825 es[first_free - k].prot_id = 2826 ice_fd_pairs[index].prot_id; 2827 es[first_free - k].off = 2828 ice_fd_pairs[index].off + (k * 2); 2829 2830 if (k > first_free) 2831 return -EIO; 2832 2833 /* keep track of non-relevant fields */ 2834 mask_sel |= BIT(first_free - k); 2835 } 2836 2837 pair_start[index] = first_free; 2838 first_free -= ice_fd_pairs[index].count; 2839 } 2840 } 2841 2842 /* fill in the swap array */ 2843 si = hw->blk[ICE_BLK_FD].es.fvw - 1; 2844 while (si >= 0) { 2845 u8 indexes_used = 1; 2846 2847 /* assume flat at this index */ 2848 #define ICE_SWAP_VALID 0x80 2849 used[si] = si | ICE_SWAP_VALID; 2850 2851 if (orig_free == ICE_FD_FV_NOT_FOUND || si <= orig_free) { 2852 si -= indexes_used; 2853 continue; 2854 } 2855 2856 /* check for a swap location */ 2857 for (j = 0; j < ICE_FD_SRC_DST_PAIR_COUNT; j++) 2858 if (es[si].prot_id == ice_fd_pairs[j].prot_id && 2859 es[si].off == ice_fd_pairs[j].off) { 2860 u8 idx; 2861 2862 /* determine the appropriate matching field */ 2863 idx = j + ((j % 2) ? -1 : 1); 2864 2865 indexes_used = ice_fd_pairs[idx].count; 2866 for (k = 0; k < indexes_used; k++) { 2867 used[si - k] = (pair_start[idx] - k) | 2868 ICE_SWAP_VALID; 2869 } 2870 2871 break; 2872 } 2873 2874 si -= indexes_used; 2875 } 2876 2877 /* for each set of 4 swap and 4 inset indexes, write the appropriate 2878 * register 2879 */ 2880 for (j = 0; j < hw->blk[ICE_BLK_FD].es.fvw / 4; j++) { 2881 u32 raw_swap = 0; 2882 u32 raw_in = 0; 2883 2884 for (k = 0; k < 4; k++) { 2885 u8 idx; 2886 2887 idx = (j * 4) + k; 2888 if (used[idx] && !(mask_sel & BIT(idx))) { 2889 raw_swap |= used[idx] << (k * BITS_PER_BYTE); 2890 #define ICE_INSET_DFLT 0x9f 2891 raw_in |= ICE_INSET_DFLT << (k * BITS_PER_BYTE); 2892 } 2893 } 2894 2895 /* write the appropriate swap register set */ 2896 wr32(hw, GLQF_FDSWAP(prof_id, j), raw_swap); 2897 2898 ice_debug(hw, ICE_DBG_INIT, "swap wr(%d, %d): %x = %08x\n", 2899 prof_id, j, GLQF_FDSWAP(prof_id, j), raw_swap); 2900 2901 /* write the appropriate inset register set */ 2902 wr32(hw, GLQF_FDINSET(prof_id, j), raw_in); 2903 2904 ice_debug(hw, ICE_DBG_INIT, "inset wr(%d, %d): %x = %08x\n", 2905 prof_id, j, GLQF_FDINSET(prof_id, j), raw_in); 2906 } 2907 2908 /* initially clear the mask select for this profile */ 2909 ice_update_fd_mask(hw, prof_id, 0); 2910 2911 return 0; 2912 } 2913 2914 /* The entries here needs to match the order of enum ice_ptype_attrib */ 2915 static const struct ice_ptype_attrib_info ice_ptype_attributes[] = { 2916 { ICE_GTP_PDU_EH, ICE_GTP_PDU_FLAG_MASK }, 2917 { ICE_GTP_SESSION, ICE_GTP_FLAGS_MASK }, 2918 { ICE_GTP_DOWNLINK, ICE_GTP_FLAGS_MASK }, 2919 { ICE_GTP_UPLINK, ICE_GTP_FLAGS_MASK }, 2920 }; 2921 2922 /** 2923 * ice_get_ptype_attrib_info - get PTYPE attribute information 2924 * @type: attribute type 2925 * @info: pointer to variable to the attribute information 2926 */ 2927 static void 2928 ice_get_ptype_attrib_info(enum ice_ptype_attrib_type type, 2929 struct ice_ptype_attrib_info *info) 2930 { 2931 *info = ice_ptype_attributes[type]; 2932 } 2933 2934 /** 2935 * ice_add_prof_attrib - add any PTG with attributes to profile 2936 * @prof: pointer to the profile to which PTG entries will be added 2937 * @ptg: PTG to be added 2938 * @ptype: PTYPE that needs to be looked up 2939 * @attr: array of attributes that will be considered 2940 * @attr_cnt: number of elements in the attribute array 2941 */ 2942 static int 2943 ice_add_prof_attrib(struct ice_prof_map *prof, u8 ptg, u16 ptype, 2944 const struct ice_ptype_attributes *attr, u16 attr_cnt) 2945 { 2946 bool found = false; 2947 u16 i; 2948 2949 for (i = 0; i < attr_cnt; i++) 2950 if (attr[i].ptype == ptype) { 2951 found = true; 2952 2953 prof->ptg[prof->ptg_cnt] = ptg; 2954 ice_get_ptype_attrib_info(attr[i].attrib, 2955 &prof->attr[prof->ptg_cnt]); 2956 2957 if (++prof->ptg_cnt >= ICE_MAX_PTG_PER_PROFILE) 2958 return -ENOSPC; 2959 } 2960 2961 if (!found) 2962 return -ENOENT; 2963 2964 return 0; 2965 } 2966 2967 /** 2968 * ice_add_prof - add profile 2969 * @hw: pointer to the HW struct 2970 * @blk: hardware block 2971 * @id: profile tracking ID 2972 * @ptypes: array of bitmaps indicating ptypes (ICE_FLOW_PTYPE_MAX bits) 2973 * @attr: array of attributes 2974 * @attr_cnt: number of elements in attr array 2975 * @es: extraction sequence (length of array is determined by the block) 2976 * @masks: mask for extraction sequence 2977 * 2978 * This function registers a profile, which matches a set of PTYPES with a 2979 * particular extraction sequence. While the hardware profile is allocated 2980 * it will not be written until the first call to ice_add_flow that specifies 2981 * the ID value used here. 2982 */ 2983 int 2984 ice_add_prof(struct ice_hw *hw, enum ice_block blk, u64 id, u8 ptypes[], 2985 const struct ice_ptype_attributes *attr, u16 attr_cnt, 2986 struct ice_fv_word *es, u16 *masks) 2987 { 2988 u32 bytes = DIV_ROUND_UP(ICE_FLOW_PTYPE_MAX, BITS_PER_BYTE); 2989 DECLARE_BITMAP(ptgs_used, ICE_XLT1_CNT); 2990 struct ice_prof_map *prof; 2991 u8 byte = 0; 2992 u8 prof_id; 2993 int status; 2994 2995 bitmap_zero(ptgs_used, ICE_XLT1_CNT); 2996 2997 mutex_lock(&hw->blk[blk].es.prof_map_lock); 2998 2999 /* search for existing profile */ 3000 status = ice_find_prof_id_with_mask(hw, blk, es, masks, &prof_id); 3001 if (status) { 3002 /* allocate profile ID */ 3003 status = ice_alloc_prof_id(hw, blk, &prof_id); 3004 if (status) 3005 goto err_ice_add_prof; 3006 if (blk == ICE_BLK_FD) { 3007 /* For Flow Director block, the extraction sequence may 3008 * need to be altered in the case where there are paired 3009 * fields that have no match. This is necessary because 3010 * for Flow Director, src and dest fields need to paired 3011 * for filter programming and these values are swapped 3012 * during Tx. 3013 */ 3014 status = ice_update_fd_swap(hw, prof_id, es); 3015 if (status) 3016 goto err_ice_add_prof; 3017 } 3018 status = ice_update_prof_masking(hw, blk, prof_id, masks); 3019 if (status) 3020 goto err_ice_add_prof; 3021 3022 /* and write new es */ 3023 ice_write_es(hw, blk, prof_id, es); 3024 } 3025 3026 ice_prof_inc_ref(hw, blk, prof_id); 3027 3028 /* add profile info */ 3029 prof = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*prof), GFP_KERNEL); 3030 if (!prof) { 3031 status = -ENOMEM; 3032 goto err_ice_add_prof; 3033 } 3034 3035 prof->profile_cookie = id; 3036 prof->prof_id = prof_id; 3037 prof->ptg_cnt = 0; 3038 prof->context = 0; 3039 3040 /* build list of ptgs */ 3041 while (bytes && prof->ptg_cnt < ICE_MAX_PTG_PER_PROFILE) { 3042 u8 bit; 3043 3044 if (!ptypes[byte]) { 3045 bytes--; 3046 byte++; 3047 continue; 3048 } 3049 3050 /* Examine 8 bits per byte */ 3051 for_each_set_bit(bit, (unsigned long *)&ptypes[byte], 3052 BITS_PER_BYTE) { 3053 u16 ptype; 3054 u8 ptg; 3055 3056 ptype = byte * BITS_PER_BYTE + bit; 3057 3058 /* The package should place all ptypes in a non-zero 3059 * PTG, so the following call should never fail. 3060 */ 3061 if (ice_ptg_find_ptype(hw, blk, ptype, &ptg)) 3062 continue; 3063 3064 /* If PTG is already added, skip and continue */ 3065 if (test_bit(ptg, ptgs_used)) 3066 continue; 3067 3068 __set_bit(ptg, ptgs_used); 3069 /* Check to see there are any attributes for 3070 * this PTYPE, and add them if found. 3071 */ 3072 status = ice_add_prof_attrib(prof, ptg, ptype, 3073 attr, attr_cnt); 3074 if (status == -ENOSPC) 3075 break; 3076 if (status) { 3077 /* This is simple a PTYPE/PTG with no 3078 * attribute 3079 */ 3080 prof->ptg[prof->ptg_cnt] = ptg; 3081 prof->attr[prof->ptg_cnt].flags = 0; 3082 prof->attr[prof->ptg_cnt].mask = 0; 3083 3084 if (++prof->ptg_cnt >= 3085 ICE_MAX_PTG_PER_PROFILE) 3086 break; 3087 } 3088 } 3089 3090 bytes--; 3091 byte++; 3092 } 3093 3094 list_add(&prof->list, &hw->blk[blk].es.prof_map); 3095 status = 0; 3096 3097 err_ice_add_prof: 3098 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 3099 return status; 3100 } 3101 3102 /** 3103 * ice_search_prof_id - Search for a profile tracking ID 3104 * @hw: pointer to the HW struct 3105 * @blk: hardware block 3106 * @id: profile tracking ID 3107 * 3108 * This will search for a profile tracking ID which was previously added. 3109 * The profile map lock should be held before calling this function. 3110 */ 3111 static struct ice_prof_map * 3112 ice_search_prof_id(struct ice_hw *hw, enum ice_block blk, u64 id) 3113 { 3114 struct ice_prof_map *entry = NULL; 3115 struct ice_prof_map *map; 3116 3117 list_for_each_entry(map, &hw->blk[blk].es.prof_map, list) 3118 if (map->profile_cookie == id) { 3119 entry = map; 3120 break; 3121 } 3122 3123 return entry; 3124 } 3125 3126 /** 3127 * ice_vsig_prof_id_count - count profiles in a VSIG 3128 * @hw: pointer to the HW struct 3129 * @blk: hardware block 3130 * @vsig: VSIG to remove the profile from 3131 */ 3132 static u16 3133 ice_vsig_prof_id_count(struct ice_hw *hw, enum ice_block blk, u16 vsig) 3134 { 3135 u16 idx = vsig & ICE_VSIG_IDX_M, count = 0; 3136 struct ice_vsig_prof *p; 3137 3138 list_for_each_entry(p, &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 3139 list) 3140 count++; 3141 3142 return count; 3143 } 3144 3145 /** 3146 * ice_rel_tcam_idx - release a TCAM index 3147 * @hw: pointer to the HW struct 3148 * @blk: hardware block 3149 * @idx: the index to release 3150 */ 3151 static int ice_rel_tcam_idx(struct ice_hw *hw, enum ice_block blk, u16 idx) 3152 { 3153 /* Masks to invoke a never match entry */ 3154 u8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; 3155 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFE, 0xFF, 0xFF, 0xFF, 0xFF }; 3156 u8 nm_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x01, 0x00, 0x00, 0x00, 0x00 }; 3157 int status; 3158 3159 /* write the TCAM entry */ 3160 status = ice_tcam_write_entry(hw, blk, idx, 0, 0, 0, 0, 0, vl_msk, 3161 dc_msk, nm_msk); 3162 if (status) 3163 return status; 3164 3165 /* release the TCAM entry */ 3166 status = ice_free_tcam_ent(hw, blk, idx); 3167 3168 return status; 3169 } 3170 3171 /** 3172 * ice_rem_prof_id - remove one profile from a VSIG 3173 * @hw: pointer to the HW struct 3174 * @blk: hardware block 3175 * @prof: pointer to profile structure to remove 3176 */ 3177 static int 3178 ice_rem_prof_id(struct ice_hw *hw, enum ice_block blk, 3179 struct ice_vsig_prof *prof) 3180 { 3181 int status; 3182 u16 i; 3183 3184 for (i = 0; i < prof->tcam_count; i++) 3185 if (prof->tcam[i].in_use) { 3186 prof->tcam[i].in_use = false; 3187 status = ice_rel_tcam_idx(hw, blk, 3188 prof->tcam[i].tcam_idx); 3189 if (status) 3190 return -EIO; 3191 } 3192 3193 return 0; 3194 } 3195 3196 /** 3197 * ice_rem_vsig - remove VSIG 3198 * @hw: pointer to the HW struct 3199 * @blk: hardware block 3200 * @vsig: the VSIG to remove 3201 * @chg: the change list 3202 */ 3203 static int 3204 ice_rem_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, 3205 struct list_head *chg) 3206 { 3207 u16 idx = vsig & ICE_VSIG_IDX_M; 3208 struct ice_vsig_vsi *vsi_cur; 3209 struct ice_vsig_prof *d, *t; 3210 3211 /* remove TCAM entries */ 3212 list_for_each_entry_safe(d, t, 3213 &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 3214 list) { 3215 int status; 3216 3217 status = ice_rem_prof_id(hw, blk, d); 3218 if (status) 3219 return status; 3220 3221 list_del(&d->list); 3222 devm_kfree(ice_hw_to_dev(hw), d); 3223 } 3224 3225 /* Move all VSIS associated with this VSIG to the default VSIG */ 3226 vsi_cur = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; 3227 /* If the VSIG has at least 1 VSI then iterate through the list 3228 * and remove the VSIs before deleting the group. 3229 */ 3230 if (vsi_cur) 3231 do { 3232 struct ice_vsig_vsi *tmp = vsi_cur->next_vsi; 3233 struct ice_chs_chg *p; 3234 3235 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), 3236 GFP_KERNEL); 3237 if (!p) 3238 return -ENOMEM; 3239 3240 p->type = ICE_VSIG_REM; 3241 p->orig_vsig = vsig; 3242 p->vsig = ICE_DEFAULT_VSIG; 3243 p->vsi = vsi_cur - hw->blk[blk].xlt2.vsis; 3244 3245 list_add(&p->list_entry, chg); 3246 3247 vsi_cur = tmp; 3248 } while (vsi_cur); 3249 3250 return ice_vsig_free(hw, blk, vsig); 3251 } 3252 3253 /** 3254 * ice_rem_prof_id_vsig - remove a specific profile from a VSIG 3255 * @hw: pointer to the HW struct 3256 * @blk: hardware block 3257 * @vsig: VSIG to remove the profile from 3258 * @hdl: profile handle indicating which profile to remove 3259 * @chg: list to receive a record of changes 3260 */ 3261 static int 3262 ice_rem_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl, 3263 struct list_head *chg) 3264 { 3265 u16 idx = vsig & ICE_VSIG_IDX_M; 3266 struct ice_vsig_prof *p, *t; 3267 3268 list_for_each_entry_safe(p, t, 3269 &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 3270 list) 3271 if (p->profile_cookie == hdl) { 3272 int status; 3273 3274 if (ice_vsig_prof_id_count(hw, blk, vsig) == 1) 3275 /* this is the last profile, remove the VSIG */ 3276 return ice_rem_vsig(hw, blk, vsig, chg); 3277 3278 status = ice_rem_prof_id(hw, blk, p); 3279 if (!status) { 3280 list_del(&p->list); 3281 devm_kfree(ice_hw_to_dev(hw), p); 3282 } 3283 return status; 3284 } 3285 3286 return -ENOENT; 3287 } 3288 3289 /** 3290 * ice_rem_flow_all - remove all flows with a particular profile 3291 * @hw: pointer to the HW struct 3292 * @blk: hardware block 3293 * @id: profile tracking ID 3294 */ 3295 static int ice_rem_flow_all(struct ice_hw *hw, enum ice_block blk, u64 id) 3296 { 3297 struct ice_chs_chg *del, *tmp; 3298 struct list_head chg; 3299 int status; 3300 u16 i; 3301 3302 INIT_LIST_HEAD(&chg); 3303 3304 for (i = 1; i < ICE_MAX_VSIGS; i++) 3305 if (hw->blk[blk].xlt2.vsig_tbl[i].in_use) { 3306 if (ice_has_prof_vsig(hw, blk, i, id)) { 3307 status = ice_rem_prof_id_vsig(hw, blk, i, id, 3308 &chg); 3309 if (status) 3310 goto err_ice_rem_flow_all; 3311 } 3312 } 3313 3314 status = ice_upd_prof_hw(hw, blk, &chg); 3315 3316 err_ice_rem_flow_all: 3317 list_for_each_entry_safe(del, tmp, &chg, list_entry) { 3318 list_del(&del->list_entry); 3319 devm_kfree(ice_hw_to_dev(hw), del); 3320 } 3321 3322 return status; 3323 } 3324 3325 /** 3326 * ice_rem_prof - remove profile 3327 * @hw: pointer to the HW struct 3328 * @blk: hardware block 3329 * @id: profile tracking ID 3330 * 3331 * This will remove the profile specified by the ID parameter, which was 3332 * previously created through ice_add_prof. If any existing entries 3333 * are associated with this profile, they will be removed as well. 3334 */ 3335 int ice_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 id) 3336 { 3337 struct ice_prof_map *pmap; 3338 int status; 3339 3340 mutex_lock(&hw->blk[blk].es.prof_map_lock); 3341 3342 pmap = ice_search_prof_id(hw, blk, id); 3343 if (!pmap) { 3344 status = -ENOENT; 3345 goto err_ice_rem_prof; 3346 } 3347 3348 /* remove all flows with this profile */ 3349 status = ice_rem_flow_all(hw, blk, pmap->profile_cookie); 3350 if (status) 3351 goto err_ice_rem_prof; 3352 3353 /* dereference profile, and possibly remove */ 3354 ice_prof_dec_ref(hw, blk, pmap->prof_id); 3355 3356 list_del(&pmap->list); 3357 devm_kfree(ice_hw_to_dev(hw), pmap); 3358 3359 err_ice_rem_prof: 3360 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 3361 return status; 3362 } 3363 3364 /** 3365 * ice_get_prof - get profile 3366 * @hw: pointer to the HW struct 3367 * @blk: hardware block 3368 * @hdl: profile handle 3369 * @chg: change list 3370 */ 3371 static int 3372 ice_get_prof(struct ice_hw *hw, enum ice_block blk, u64 hdl, 3373 struct list_head *chg) 3374 { 3375 struct ice_prof_map *map; 3376 struct ice_chs_chg *p; 3377 int status = 0; 3378 u16 i; 3379 3380 mutex_lock(&hw->blk[blk].es.prof_map_lock); 3381 /* Get the details on the profile specified by the handle ID */ 3382 map = ice_search_prof_id(hw, blk, hdl); 3383 if (!map) { 3384 status = -ENOENT; 3385 goto err_ice_get_prof; 3386 } 3387 3388 for (i = 0; i < map->ptg_cnt; i++) 3389 if (!hw->blk[blk].es.written[map->prof_id]) { 3390 /* add ES to change list */ 3391 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), 3392 GFP_KERNEL); 3393 if (!p) { 3394 status = -ENOMEM; 3395 goto err_ice_get_prof; 3396 } 3397 3398 p->type = ICE_PTG_ES_ADD; 3399 p->ptype = 0; 3400 p->ptg = map->ptg[i]; 3401 p->add_ptg = 0; 3402 3403 p->add_prof = 1; 3404 p->prof_id = map->prof_id; 3405 3406 hw->blk[blk].es.written[map->prof_id] = true; 3407 3408 list_add(&p->list_entry, chg); 3409 } 3410 3411 err_ice_get_prof: 3412 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 3413 /* let caller clean up the change list */ 3414 return status; 3415 } 3416 3417 /** 3418 * ice_get_profs_vsig - get a copy of the list of profiles from a VSIG 3419 * @hw: pointer to the HW struct 3420 * @blk: hardware block 3421 * @vsig: VSIG from which to copy the list 3422 * @lst: output list 3423 * 3424 * This routine makes a copy of the list of profiles in the specified VSIG. 3425 */ 3426 static int 3427 ice_get_profs_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, 3428 struct list_head *lst) 3429 { 3430 struct ice_vsig_prof *ent1, *ent2; 3431 u16 idx = vsig & ICE_VSIG_IDX_M; 3432 3433 list_for_each_entry(ent1, &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 3434 list) { 3435 struct ice_vsig_prof *p; 3436 3437 /* copy to the input list */ 3438 p = devm_kmemdup(ice_hw_to_dev(hw), ent1, sizeof(*p), 3439 GFP_KERNEL); 3440 if (!p) 3441 goto err_ice_get_profs_vsig; 3442 3443 list_add_tail(&p->list, lst); 3444 } 3445 3446 return 0; 3447 3448 err_ice_get_profs_vsig: 3449 list_for_each_entry_safe(ent1, ent2, lst, list) { 3450 list_del(&ent1->list); 3451 devm_kfree(ice_hw_to_dev(hw), ent1); 3452 } 3453 3454 return -ENOMEM; 3455 } 3456 3457 /** 3458 * ice_add_prof_to_lst - add profile entry to a list 3459 * @hw: pointer to the HW struct 3460 * @blk: hardware block 3461 * @lst: the list to be added to 3462 * @hdl: profile handle of entry to add 3463 */ 3464 static int 3465 ice_add_prof_to_lst(struct ice_hw *hw, enum ice_block blk, 3466 struct list_head *lst, u64 hdl) 3467 { 3468 struct ice_prof_map *map; 3469 struct ice_vsig_prof *p; 3470 int status = 0; 3471 u16 i; 3472 3473 mutex_lock(&hw->blk[blk].es.prof_map_lock); 3474 map = ice_search_prof_id(hw, blk, hdl); 3475 if (!map) { 3476 status = -ENOENT; 3477 goto err_ice_add_prof_to_lst; 3478 } 3479 3480 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 3481 if (!p) { 3482 status = -ENOMEM; 3483 goto err_ice_add_prof_to_lst; 3484 } 3485 3486 p->profile_cookie = map->profile_cookie; 3487 p->prof_id = map->prof_id; 3488 p->tcam_count = map->ptg_cnt; 3489 3490 for (i = 0; i < map->ptg_cnt; i++) { 3491 p->tcam[i].prof_id = map->prof_id; 3492 p->tcam[i].tcam_idx = ICE_INVALID_TCAM; 3493 p->tcam[i].ptg = map->ptg[i]; 3494 } 3495 3496 list_add(&p->list, lst); 3497 3498 err_ice_add_prof_to_lst: 3499 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 3500 return status; 3501 } 3502 3503 /** 3504 * ice_move_vsi - move VSI to another VSIG 3505 * @hw: pointer to the HW struct 3506 * @blk: hardware block 3507 * @vsi: the VSI to move 3508 * @vsig: the VSIG to move the VSI to 3509 * @chg: the change list 3510 */ 3511 static int 3512 ice_move_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig, 3513 struct list_head *chg) 3514 { 3515 struct ice_chs_chg *p; 3516 u16 orig_vsig; 3517 int status; 3518 3519 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 3520 if (!p) 3521 return -ENOMEM; 3522 3523 status = ice_vsig_find_vsi(hw, blk, vsi, &orig_vsig); 3524 if (!status) 3525 status = ice_vsig_add_mv_vsi(hw, blk, vsi, vsig); 3526 3527 if (status) { 3528 devm_kfree(ice_hw_to_dev(hw), p); 3529 return status; 3530 } 3531 3532 p->type = ICE_VSI_MOVE; 3533 p->vsi = vsi; 3534 p->orig_vsig = orig_vsig; 3535 p->vsig = vsig; 3536 3537 list_add(&p->list_entry, chg); 3538 3539 return 0; 3540 } 3541 3542 /** 3543 * ice_rem_chg_tcam_ent - remove a specific TCAM entry from change list 3544 * @hw: pointer to the HW struct 3545 * @idx: the index of the TCAM entry to remove 3546 * @chg: the list of change structures to search 3547 */ 3548 static void 3549 ice_rem_chg_tcam_ent(struct ice_hw *hw, u16 idx, struct list_head *chg) 3550 { 3551 struct ice_chs_chg *pos, *tmp; 3552 3553 list_for_each_entry_safe(tmp, pos, chg, list_entry) 3554 if (tmp->type == ICE_TCAM_ADD && tmp->tcam_idx == idx) { 3555 list_del(&tmp->list_entry); 3556 devm_kfree(ice_hw_to_dev(hw), tmp); 3557 } 3558 } 3559 3560 /** 3561 * ice_prof_tcam_ena_dis - add enable or disable TCAM change 3562 * @hw: pointer to the HW struct 3563 * @blk: hardware block 3564 * @enable: true to enable, false to disable 3565 * @vsig: the VSIG of the TCAM entry 3566 * @tcam: pointer the TCAM info structure of the TCAM to disable 3567 * @chg: the change list 3568 * 3569 * This function appends an enable or disable TCAM entry in the change log 3570 */ 3571 static int 3572 ice_prof_tcam_ena_dis(struct ice_hw *hw, enum ice_block blk, bool enable, 3573 u16 vsig, struct ice_tcam_inf *tcam, 3574 struct list_head *chg) 3575 { 3576 struct ice_chs_chg *p; 3577 int status; 3578 3579 u8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; 3580 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0x00, 0x00, 0x00 }; 3581 u8 nm_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x00, 0x00, 0x00, 0x00, 0x00 }; 3582 3583 /* if disabling, free the TCAM */ 3584 if (!enable) { 3585 status = ice_rel_tcam_idx(hw, blk, tcam->tcam_idx); 3586 3587 /* if we have already created a change for this TCAM entry, then 3588 * we need to remove that entry, in order to prevent writing to 3589 * a TCAM entry we no longer will have ownership of. 3590 */ 3591 ice_rem_chg_tcam_ent(hw, tcam->tcam_idx, chg); 3592 tcam->tcam_idx = 0; 3593 tcam->in_use = 0; 3594 return status; 3595 } 3596 3597 /* for re-enabling, reallocate a TCAM */ 3598 /* for entries with empty attribute masks, allocate entry from 3599 * the bottom of the TCAM table; otherwise, allocate from the 3600 * top of the table in order to give it higher priority 3601 */ 3602 status = ice_alloc_tcam_ent(hw, blk, tcam->attr.mask == 0, 3603 &tcam->tcam_idx); 3604 if (status) 3605 return status; 3606 3607 /* add TCAM to change list */ 3608 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 3609 if (!p) 3610 return -ENOMEM; 3611 3612 status = ice_tcam_write_entry(hw, blk, tcam->tcam_idx, tcam->prof_id, 3613 tcam->ptg, vsig, 0, tcam->attr.flags, 3614 vl_msk, dc_msk, nm_msk); 3615 if (status) 3616 goto err_ice_prof_tcam_ena_dis; 3617 3618 tcam->in_use = 1; 3619 3620 p->type = ICE_TCAM_ADD; 3621 p->add_tcam_idx = true; 3622 p->prof_id = tcam->prof_id; 3623 p->ptg = tcam->ptg; 3624 p->vsig = 0; 3625 p->tcam_idx = tcam->tcam_idx; 3626 3627 /* log change */ 3628 list_add(&p->list_entry, chg); 3629 3630 return 0; 3631 3632 err_ice_prof_tcam_ena_dis: 3633 devm_kfree(ice_hw_to_dev(hw), p); 3634 return status; 3635 } 3636 3637 /** 3638 * ice_adj_prof_priorities - adjust profile based on priorities 3639 * @hw: pointer to the HW struct 3640 * @blk: hardware block 3641 * @vsig: the VSIG for which to adjust profile priorities 3642 * @chg: the change list 3643 */ 3644 static int 3645 ice_adj_prof_priorities(struct ice_hw *hw, enum ice_block blk, u16 vsig, 3646 struct list_head *chg) 3647 { 3648 DECLARE_BITMAP(ptgs_used, ICE_XLT1_CNT); 3649 struct ice_vsig_prof *t; 3650 int status; 3651 u16 idx; 3652 3653 bitmap_zero(ptgs_used, ICE_XLT1_CNT); 3654 idx = vsig & ICE_VSIG_IDX_M; 3655 3656 /* Priority is based on the order in which the profiles are added. The 3657 * newest added profile has highest priority and the oldest added 3658 * profile has the lowest priority. Since the profile property list for 3659 * a VSIG is sorted from newest to oldest, this code traverses the list 3660 * in order and enables the first of each PTG that it finds (that is not 3661 * already enabled); it also disables any duplicate PTGs that it finds 3662 * in the older profiles (that are currently enabled). 3663 */ 3664 3665 list_for_each_entry(t, &hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst, 3666 list) { 3667 u16 i; 3668 3669 for (i = 0; i < t->tcam_count; i++) { 3670 /* Scan the priorities from newest to oldest. 3671 * Make sure that the newest profiles take priority. 3672 */ 3673 if (test_bit(t->tcam[i].ptg, ptgs_used) && 3674 t->tcam[i].in_use) { 3675 /* need to mark this PTG as never match, as it 3676 * was already in use and therefore duplicate 3677 * (and lower priority) 3678 */ 3679 status = ice_prof_tcam_ena_dis(hw, blk, false, 3680 vsig, 3681 &t->tcam[i], 3682 chg); 3683 if (status) 3684 return status; 3685 } else if (!test_bit(t->tcam[i].ptg, ptgs_used) && 3686 !t->tcam[i].in_use) { 3687 /* need to enable this PTG, as it in not in use 3688 * and not enabled (highest priority) 3689 */ 3690 status = ice_prof_tcam_ena_dis(hw, blk, true, 3691 vsig, 3692 &t->tcam[i], 3693 chg); 3694 if (status) 3695 return status; 3696 } 3697 3698 /* keep track of used ptgs */ 3699 __set_bit(t->tcam[i].ptg, ptgs_used); 3700 } 3701 } 3702 3703 return 0; 3704 } 3705 3706 /** 3707 * ice_add_prof_id_vsig - add profile to VSIG 3708 * @hw: pointer to the HW struct 3709 * @blk: hardware block 3710 * @vsig: the VSIG to which this profile is to be added 3711 * @hdl: the profile handle indicating the profile to add 3712 * @rev: true to add entries to the end of the list 3713 * @chg: the change list 3714 */ 3715 static int 3716 ice_add_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl, 3717 bool rev, struct list_head *chg) 3718 { 3719 /* Masks that ignore flags */ 3720 u8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; 3721 u8 dc_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0x00, 0x00, 0x00 }; 3722 u8 nm_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x00, 0x00, 0x00, 0x00, 0x00 }; 3723 struct ice_prof_map *map; 3724 struct ice_vsig_prof *t; 3725 struct ice_chs_chg *p; 3726 u16 vsig_idx, i; 3727 int status = 0; 3728 3729 /* Error, if this VSIG already has this profile */ 3730 if (ice_has_prof_vsig(hw, blk, vsig, hdl)) 3731 return -EEXIST; 3732 3733 /* new VSIG profile structure */ 3734 t = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*t), GFP_KERNEL); 3735 if (!t) 3736 return -ENOMEM; 3737 3738 mutex_lock(&hw->blk[blk].es.prof_map_lock); 3739 /* Get the details on the profile specified by the handle ID */ 3740 map = ice_search_prof_id(hw, blk, hdl); 3741 if (!map) { 3742 status = -ENOENT; 3743 goto err_ice_add_prof_id_vsig; 3744 } 3745 3746 t->profile_cookie = map->profile_cookie; 3747 t->prof_id = map->prof_id; 3748 t->tcam_count = map->ptg_cnt; 3749 3750 /* create TCAM entries */ 3751 for (i = 0; i < map->ptg_cnt; i++) { 3752 u16 tcam_idx; 3753 3754 /* add TCAM to change list */ 3755 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 3756 if (!p) { 3757 status = -ENOMEM; 3758 goto err_ice_add_prof_id_vsig; 3759 } 3760 3761 /* allocate the TCAM entry index */ 3762 /* for entries with empty attribute masks, allocate entry from 3763 * the bottom of the TCAM table; otherwise, allocate from the 3764 * top of the table in order to give it higher priority 3765 */ 3766 status = ice_alloc_tcam_ent(hw, blk, map->attr[i].mask == 0, 3767 &tcam_idx); 3768 if (status) { 3769 devm_kfree(ice_hw_to_dev(hw), p); 3770 goto err_ice_add_prof_id_vsig; 3771 } 3772 3773 t->tcam[i].ptg = map->ptg[i]; 3774 t->tcam[i].prof_id = map->prof_id; 3775 t->tcam[i].tcam_idx = tcam_idx; 3776 t->tcam[i].attr = map->attr[i]; 3777 t->tcam[i].in_use = true; 3778 3779 p->type = ICE_TCAM_ADD; 3780 p->add_tcam_idx = true; 3781 p->prof_id = t->tcam[i].prof_id; 3782 p->ptg = t->tcam[i].ptg; 3783 p->vsig = vsig; 3784 p->tcam_idx = t->tcam[i].tcam_idx; 3785 3786 /* write the TCAM entry */ 3787 status = ice_tcam_write_entry(hw, blk, t->tcam[i].tcam_idx, 3788 t->tcam[i].prof_id, 3789 t->tcam[i].ptg, vsig, 0, 0, 3790 vl_msk, dc_msk, nm_msk); 3791 if (status) { 3792 devm_kfree(ice_hw_to_dev(hw), p); 3793 goto err_ice_add_prof_id_vsig; 3794 } 3795 3796 /* log change */ 3797 list_add(&p->list_entry, chg); 3798 } 3799 3800 /* add profile to VSIG */ 3801 vsig_idx = vsig & ICE_VSIG_IDX_M; 3802 if (rev) 3803 list_add_tail(&t->list, 3804 &hw->blk[blk].xlt2.vsig_tbl[vsig_idx].prop_lst); 3805 else 3806 list_add(&t->list, 3807 &hw->blk[blk].xlt2.vsig_tbl[vsig_idx].prop_lst); 3808 3809 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 3810 return status; 3811 3812 err_ice_add_prof_id_vsig: 3813 mutex_unlock(&hw->blk[blk].es.prof_map_lock); 3814 /* let caller clean up the change list */ 3815 devm_kfree(ice_hw_to_dev(hw), t); 3816 return status; 3817 } 3818 3819 /** 3820 * ice_create_prof_id_vsig - add a new VSIG with a single profile 3821 * @hw: pointer to the HW struct 3822 * @blk: hardware block 3823 * @vsi: the initial VSI that will be in VSIG 3824 * @hdl: the profile handle of the profile that will be added to the VSIG 3825 * @chg: the change list 3826 */ 3827 static int 3828 ice_create_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl, 3829 struct list_head *chg) 3830 { 3831 struct ice_chs_chg *p; 3832 u16 new_vsig; 3833 int status; 3834 3835 p = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*p), GFP_KERNEL); 3836 if (!p) 3837 return -ENOMEM; 3838 3839 new_vsig = ice_vsig_alloc(hw, blk); 3840 if (!new_vsig) { 3841 status = -EIO; 3842 goto err_ice_create_prof_id_vsig; 3843 } 3844 3845 status = ice_move_vsi(hw, blk, vsi, new_vsig, chg); 3846 if (status) 3847 goto err_ice_create_prof_id_vsig; 3848 3849 status = ice_add_prof_id_vsig(hw, blk, new_vsig, hdl, false, chg); 3850 if (status) 3851 goto err_ice_create_prof_id_vsig; 3852 3853 p->type = ICE_VSIG_ADD; 3854 p->vsi = vsi; 3855 p->orig_vsig = ICE_DEFAULT_VSIG; 3856 p->vsig = new_vsig; 3857 3858 list_add(&p->list_entry, chg); 3859 3860 return 0; 3861 3862 err_ice_create_prof_id_vsig: 3863 /* let caller clean up the change list */ 3864 devm_kfree(ice_hw_to_dev(hw), p); 3865 return status; 3866 } 3867 3868 /** 3869 * ice_create_vsig_from_lst - create a new VSIG with a list of profiles 3870 * @hw: pointer to the HW struct 3871 * @blk: hardware block 3872 * @vsi: the initial VSI that will be in VSIG 3873 * @lst: the list of profile that will be added to the VSIG 3874 * @new_vsig: return of new VSIG 3875 * @chg: the change list 3876 */ 3877 static int 3878 ice_create_vsig_from_lst(struct ice_hw *hw, enum ice_block blk, u16 vsi, 3879 struct list_head *lst, u16 *new_vsig, 3880 struct list_head *chg) 3881 { 3882 struct ice_vsig_prof *t; 3883 int status; 3884 u16 vsig; 3885 3886 vsig = ice_vsig_alloc(hw, blk); 3887 if (!vsig) 3888 return -EIO; 3889 3890 status = ice_move_vsi(hw, blk, vsi, vsig, chg); 3891 if (status) 3892 return status; 3893 3894 list_for_each_entry(t, lst, list) { 3895 /* Reverse the order here since we are copying the list */ 3896 status = ice_add_prof_id_vsig(hw, blk, vsig, t->profile_cookie, 3897 true, chg); 3898 if (status) 3899 return status; 3900 } 3901 3902 *new_vsig = vsig; 3903 3904 return 0; 3905 } 3906 3907 /** 3908 * ice_find_prof_vsig - find a VSIG with a specific profile handle 3909 * @hw: pointer to the HW struct 3910 * @blk: hardware block 3911 * @hdl: the profile handle of the profile to search for 3912 * @vsig: returns the VSIG with the matching profile 3913 */ 3914 static bool 3915 ice_find_prof_vsig(struct ice_hw *hw, enum ice_block blk, u64 hdl, u16 *vsig) 3916 { 3917 struct ice_vsig_prof *t; 3918 struct list_head lst; 3919 int status; 3920 3921 INIT_LIST_HEAD(&lst); 3922 3923 t = kzalloc(sizeof(*t), GFP_KERNEL); 3924 if (!t) 3925 return false; 3926 3927 t->profile_cookie = hdl; 3928 list_add(&t->list, &lst); 3929 3930 status = ice_find_dup_props_vsig(hw, blk, &lst, vsig); 3931 3932 list_del(&t->list); 3933 kfree(t); 3934 3935 return !status; 3936 } 3937 3938 /** 3939 * ice_add_prof_id_flow - add profile flow 3940 * @hw: pointer to the HW struct 3941 * @blk: hardware block 3942 * @vsi: the VSI to enable with the profile specified by ID 3943 * @hdl: profile handle 3944 * 3945 * Calling this function will update the hardware tables to enable the 3946 * profile indicated by the ID parameter for the VSIs specified in the VSI 3947 * array. Once successfully called, the flow will be enabled. 3948 */ 3949 int 3950 ice_add_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl) 3951 { 3952 struct ice_vsig_prof *tmp1, *del1; 3953 struct ice_chs_chg *tmp, *del; 3954 struct list_head union_lst; 3955 struct list_head chg; 3956 int status; 3957 u16 vsig; 3958 3959 INIT_LIST_HEAD(&union_lst); 3960 INIT_LIST_HEAD(&chg); 3961 3962 /* Get profile */ 3963 status = ice_get_prof(hw, blk, hdl, &chg); 3964 if (status) 3965 return status; 3966 3967 /* determine if VSI is already part of a VSIG */ 3968 status = ice_vsig_find_vsi(hw, blk, vsi, &vsig); 3969 if (!status && vsig) { 3970 bool only_vsi; 3971 u16 or_vsig; 3972 u16 ref; 3973 3974 /* found in VSIG */ 3975 or_vsig = vsig; 3976 3977 /* make sure that there is no overlap/conflict between the new 3978 * characteristics and the existing ones; we don't support that 3979 * scenario 3980 */ 3981 if (ice_has_prof_vsig(hw, blk, vsig, hdl)) { 3982 status = -EEXIST; 3983 goto err_ice_add_prof_id_flow; 3984 } 3985 3986 /* last VSI in the VSIG? */ 3987 status = ice_vsig_get_ref(hw, blk, vsig, &ref); 3988 if (status) 3989 goto err_ice_add_prof_id_flow; 3990 only_vsi = (ref == 1); 3991 3992 /* create a union of the current profiles and the one being 3993 * added 3994 */ 3995 status = ice_get_profs_vsig(hw, blk, vsig, &union_lst); 3996 if (status) 3997 goto err_ice_add_prof_id_flow; 3998 3999 status = ice_add_prof_to_lst(hw, blk, &union_lst, hdl); 4000 if (status) 4001 goto err_ice_add_prof_id_flow; 4002 4003 /* search for an existing VSIG with an exact charc match */ 4004 status = ice_find_dup_props_vsig(hw, blk, &union_lst, &vsig); 4005 if (!status) { 4006 /* move VSI to the VSIG that matches */ 4007 status = ice_move_vsi(hw, blk, vsi, vsig, &chg); 4008 if (status) 4009 goto err_ice_add_prof_id_flow; 4010 4011 /* VSI has been moved out of or_vsig. If the or_vsig had 4012 * only that VSI it is now empty and can be removed. 4013 */ 4014 if (only_vsi) { 4015 status = ice_rem_vsig(hw, blk, or_vsig, &chg); 4016 if (status) 4017 goto err_ice_add_prof_id_flow; 4018 } 4019 } else if (only_vsi) { 4020 /* If the original VSIG only contains one VSI, then it 4021 * will be the requesting VSI. In this case the VSI is 4022 * not sharing entries and we can simply add the new 4023 * profile to the VSIG. 4024 */ 4025 status = ice_add_prof_id_vsig(hw, blk, vsig, hdl, false, 4026 &chg); 4027 if (status) 4028 goto err_ice_add_prof_id_flow; 4029 4030 /* Adjust priorities */ 4031 status = ice_adj_prof_priorities(hw, blk, vsig, &chg); 4032 if (status) 4033 goto err_ice_add_prof_id_flow; 4034 } else { 4035 /* No match, so we need a new VSIG */ 4036 status = ice_create_vsig_from_lst(hw, blk, vsi, 4037 &union_lst, &vsig, 4038 &chg); 4039 if (status) 4040 goto err_ice_add_prof_id_flow; 4041 4042 /* Adjust priorities */ 4043 status = ice_adj_prof_priorities(hw, blk, vsig, &chg); 4044 if (status) 4045 goto err_ice_add_prof_id_flow; 4046 } 4047 } else { 4048 /* need to find or add a VSIG */ 4049 /* search for an existing VSIG with an exact charc match */ 4050 if (ice_find_prof_vsig(hw, blk, hdl, &vsig)) { 4051 /* found an exact match */ 4052 /* add or move VSI to the VSIG that matches */ 4053 status = ice_move_vsi(hw, blk, vsi, vsig, &chg); 4054 if (status) 4055 goto err_ice_add_prof_id_flow; 4056 } else { 4057 /* we did not find an exact match */ 4058 /* we need to add a VSIG */ 4059 status = ice_create_prof_id_vsig(hw, blk, vsi, hdl, 4060 &chg); 4061 if (status) 4062 goto err_ice_add_prof_id_flow; 4063 } 4064 } 4065 4066 /* update hardware */ 4067 if (!status) 4068 status = ice_upd_prof_hw(hw, blk, &chg); 4069 4070 err_ice_add_prof_id_flow: 4071 list_for_each_entry_safe(del, tmp, &chg, list_entry) { 4072 list_del(&del->list_entry); 4073 devm_kfree(ice_hw_to_dev(hw), del); 4074 } 4075 4076 list_for_each_entry_safe(del1, tmp1, &union_lst, list) { 4077 list_del(&del1->list); 4078 devm_kfree(ice_hw_to_dev(hw), del1); 4079 } 4080 4081 return status; 4082 } 4083 4084 /** 4085 * ice_rem_prof_from_list - remove a profile from list 4086 * @hw: pointer to the HW struct 4087 * @lst: list to remove the profile from 4088 * @hdl: the profile handle indicating the profile to remove 4089 */ 4090 static int 4091 ice_rem_prof_from_list(struct ice_hw *hw, struct list_head *lst, u64 hdl) 4092 { 4093 struct ice_vsig_prof *ent, *tmp; 4094 4095 list_for_each_entry_safe(ent, tmp, lst, list) 4096 if (ent->profile_cookie == hdl) { 4097 list_del(&ent->list); 4098 devm_kfree(ice_hw_to_dev(hw), ent); 4099 return 0; 4100 } 4101 4102 return -ENOENT; 4103 } 4104 4105 /** 4106 * ice_rem_prof_id_flow - remove flow 4107 * @hw: pointer to the HW struct 4108 * @blk: hardware block 4109 * @vsi: the VSI from which to remove the profile specified by ID 4110 * @hdl: profile tracking handle 4111 * 4112 * Calling this function will update the hardware tables to remove the 4113 * profile indicated by the ID parameter for the VSIs specified in the VSI 4114 * array. Once successfully called, the flow will be disabled. 4115 */ 4116 int 4117 ice_rem_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl) 4118 { 4119 struct ice_vsig_prof *tmp1, *del1; 4120 struct ice_chs_chg *tmp, *del; 4121 struct list_head chg, copy; 4122 int status; 4123 u16 vsig; 4124 4125 INIT_LIST_HEAD(©); 4126 INIT_LIST_HEAD(&chg); 4127 4128 /* determine if VSI is already part of a VSIG */ 4129 status = ice_vsig_find_vsi(hw, blk, vsi, &vsig); 4130 if (!status && vsig) { 4131 bool last_profile; 4132 bool only_vsi; 4133 u16 ref; 4134 4135 /* found in VSIG */ 4136 last_profile = ice_vsig_prof_id_count(hw, blk, vsig) == 1; 4137 status = ice_vsig_get_ref(hw, blk, vsig, &ref); 4138 if (status) 4139 goto err_ice_rem_prof_id_flow; 4140 only_vsi = (ref == 1); 4141 4142 if (only_vsi) { 4143 /* If the original VSIG only contains one reference, 4144 * which will be the requesting VSI, then the VSI is not 4145 * sharing entries and we can simply remove the specific 4146 * characteristics from the VSIG. 4147 */ 4148 4149 if (last_profile) { 4150 /* If there are no profiles left for this VSIG, 4151 * then simply remove the VSIG. 4152 */ 4153 status = ice_rem_vsig(hw, blk, vsig, &chg); 4154 if (status) 4155 goto err_ice_rem_prof_id_flow; 4156 } else { 4157 status = ice_rem_prof_id_vsig(hw, blk, vsig, 4158 hdl, &chg); 4159 if (status) 4160 goto err_ice_rem_prof_id_flow; 4161 4162 /* Adjust priorities */ 4163 status = ice_adj_prof_priorities(hw, blk, vsig, 4164 &chg); 4165 if (status) 4166 goto err_ice_rem_prof_id_flow; 4167 } 4168 4169 } else { 4170 /* Make a copy of the VSIG's list of Profiles */ 4171 status = ice_get_profs_vsig(hw, blk, vsig, ©); 4172 if (status) 4173 goto err_ice_rem_prof_id_flow; 4174 4175 /* Remove specified profile entry from the list */ 4176 status = ice_rem_prof_from_list(hw, ©, hdl); 4177 if (status) 4178 goto err_ice_rem_prof_id_flow; 4179 4180 if (list_empty(©)) { 4181 status = ice_move_vsi(hw, blk, vsi, 4182 ICE_DEFAULT_VSIG, &chg); 4183 if (status) 4184 goto err_ice_rem_prof_id_flow; 4185 4186 } else if (!ice_find_dup_props_vsig(hw, blk, ©, 4187 &vsig)) { 4188 /* found an exact match */ 4189 /* add or move VSI to the VSIG that matches */ 4190 /* Search for a VSIG with a matching profile 4191 * list 4192 */ 4193 4194 /* Found match, move VSI to the matching VSIG */ 4195 status = ice_move_vsi(hw, blk, vsi, vsig, &chg); 4196 if (status) 4197 goto err_ice_rem_prof_id_flow; 4198 } else { 4199 /* since no existing VSIG supports this 4200 * characteristic pattern, we need to create a 4201 * new VSIG and TCAM entries 4202 */ 4203 status = ice_create_vsig_from_lst(hw, blk, vsi, 4204 ©, &vsig, 4205 &chg); 4206 if (status) 4207 goto err_ice_rem_prof_id_flow; 4208 4209 /* Adjust priorities */ 4210 status = ice_adj_prof_priorities(hw, blk, vsig, 4211 &chg); 4212 if (status) 4213 goto err_ice_rem_prof_id_flow; 4214 } 4215 } 4216 } else { 4217 status = -ENOENT; 4218 } 4219 4220 /* update hardware tables */ 4221 if (!status) 4222 status = ice_upd_prof_hw(hw, blk, &chg); 4223 4224 err_ice_rem_prof_id_flow: 4225 list_for_each_entry_safe(del, tmp, &chg, list_entry) { 4226 list_del(&del->list_entry); 4227 devm_kfree(ice_hw_to_dev(hw), del); 4228 } 4229 4230 list_for_each_entry_safe(del1, tmp1, ©, list) { 4231 list_del(&del1->list); 4232 devm_kfree(ice_hw_to_dev(hw), del1); 4233 } 4234 4235 return status; 4236 } 4237