1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2018, Intel Corporation. */ 3 4 #include "ice_switch.h" 5 6 #define ICE_ETH_DA_OFFSET 0 7 #define ICE_ETH_ETHTYPE_OFFSET 12 8 #define ICE_ETH_VLAN_TCI_OFFSET 14 9 #define ICE_MAX_VLAN_ID 0xFFF 10 11 /* Dummy ethernet header needed in the ice_aqc_sw_rules_elem 12 * struct to configure any switch filter rules. 13 * {DA (6 bytes), SA(6 bytes), 14 * Ether type (2 bytes for header without VLAN tag) OR 15 * VLAN tag (4 bytes for header with VLAN tag) } 16 * 17 * Word on Hardcoded values 18 * byte 0 = 0x2: to identify it as locally administered DA MAC 19 * byte 6 = 0x2: to identify it as locally administered SA MAC 20 * byte 12 = 0x81 & byte 13 = 0x00: 21 * In case of VLAN filter first two bytes defines ether type (0x8100) 22 * and remaining two bytes are placeholder for programming a given VLAN ID 23 * In case of Ether type filter it is treated as header without VLAN tag 24 * and byte 12 and 13 is used to program a given Ether type instead 25 */ 26 #define DUMMY_ETH_HDR_LEN 16 27 static const u8 dummy_eth_header[DUMMY_ETH_HDR_LEN] = { 0x2, 0, 0, 0, 0, 0, 28 0x2, 0, 0, 0, 0, 0, 29 0x81, 0, 0, 0}; 30 31 #define ICE_SW_RULE_RX_TX_ETH_HDR_SIZE \ 32 (offsetof(struct ice_aqc_sw_rules_elem, pdata.lkup_tx_rx.hdr) + \ 33 (DUMMY_ETH_HDR_LEN * \ 34 sizeof(((struct ice_sw_rule_lkup_rx_tx *)0)->hdr[0]))) 35 #define ICE_SW_RULE_RX_TX_NO_HDR_SIZE \ 36 (offsetof(struct ice_aqc_sw_rules_elem, pdata.lkup_tx_rx.hdr)) 37 #define ICE_SW_RULE_LG_ACT_SIZE(n) \ 38 (offsetof(struct ice_aqc_sw_rules_elem, pdata.lg_act.act) + \ 39 ((n) * sizeof(((struct ice_sw_rule_lg_act *)0)->act[0]))) 40 #define ICE_SW_RULE_VSI_LIST_SIZE(n) \ 41 (offsetof(struct ice_aqc_sw_rules_elem, pdata.vsi_list.vsi) + \ 42 ((n) * sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi[0]))) 43 44 /** 45 * ice_init_def_sw_recp - initialize the recipe book keeping tables 46 * @hw: pointer to the HW struct 47 * 48 * Allocate memory for the entire recipe table and initialize the structures/ 49 * entries corresponding to basic recipes. 50 */ 51 enum ice_status ice_init_def_sw_recp(struct ice_hw *hw) 52 { 53 struct ice_sw_recipe *recps; 54 u8 i; 55 56 recps = devm_kcalloc(ice_hw_to_dev(hw), ICE_MAX_NUM_RECIPES, 57 sizeof(*recps), GFP_KERNEL); 58 if (!recps) 59 return ICE_ERR_NO_MEMORY; 60 61 for (i = 0; i < ICE_SW_LKUP_LAST; i++) { 62 recps[i].root_rid = i; 63 INIT_LIST_HEAD(&recps[i].filt_rules); 64 INIT_LIST_HEAD(&recps[i].filt_replay_rules); 65 mutex_init(&recps[i].filt_rule_lock); 66 } 67 68 hw->switch_info->recp_list = recps; 69 70 return 0; 71 } 72 73 /** 74 * ice_aq_get_sw_cfg - get switch configuration 75 * @hw: pointer to the hardware structure 76 * @buf: pointer to the result buffer 77 * @buf_size: length of the buffer available for response 78 * @req_desc: pointer to requested descriptor 79 * @num_elems: pointer to number of elements 80 * @cd: pointer to command details structure or NULL 81 * 82 * Get switch configuration (0x0200) to be placed in buf. 83 * This admin command returns information such as initial VSI/port number 84 * and switch ID it belongs to. 85 * 86 * NOTE: *req_desc is both an input/output parameter. 87 * The caller of this function first calls this function with *request_desc set 88 * to 0. If the response from f/w has *req_desc set to 0, all the switch 89 * configuration information has been returned; if non-zero (meaning not all 90 * the information was returned), the caller should call this function again 91 * with *req_desc set to the previous value returned by f/w to get the 92 * next block of switch configuration information. 93 * 94 * *num_elems is output only parameter. This reflects the number of elements 95 * in response buffer. The caller of this function to use *num_elems while 96 * parsing the response buffer. 97 */ 98 static enum ice_status 99 ice_aq_get_sw_cfg(struct ice_hw *hw, struct ice_aqc_get_sw_cfg_resp_elem *buf, 100 u16 buf_size, u16 *req_desc, u16 *num_elems, 101 struct ice_sq_cd *cd) 102 { 103 struct ice_aqc_get_sw_cfg *cmd; 104 struct ice_aq_desc desc; 105 enum ice_status status; 106 107 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_sw_cfg); 108 cmd = &desc.params.get_sw_conf; 109 cmd->element = cpu_to_le16(*req_desc); 110 111 status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd); 112 if (!status) { 113 *req_desc = le16_to_cpu(cmd->element); 114 *num_elems = le16_to_cpu(cmd->num_elems); 115 } 116 117 return status; 118 } 119 120 /** 121 * ice_aq_add_vsi 122 * @hw: pointer to the HW struct 123 * @vsi_ctx: pointer to a VSI context struct 124 * @cd: pointer to command details structure or NULL 125 * 126 * Add a VSI context to the hardware (0x0210) 127 */ 128 static enum ice_status 129 ice_aq_add_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx, 130 struct ice_sq_cd *cd) 131 { 132 struct ice_aqc_add_update_free_vsi_resp *res; 133 struct ice_aqc_add_get_update_free_vsi *cmd; 134 struct ice_aq_desc desc; 135 enum ice_status status; 136 137 cmd = &desc.params.vsi_cmd; 138 res = &desc.params.add_update_free_vsi_res; 139 140 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_add_vsi); 141 142 if (!vsi_ctx->alloc_from_pool) 143 cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num | 144 ICE_AQ_VSI_IS_VALID); 145 cmd->vf_id = vsi_ctx->vf_num; 146 147 cmd->vsi_flags = cpu_to_le16(vsi_ctx->flags); 148 149 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); 150 151 status = ice_aq_send_cmd(hw, &desc, &vsi_ctx->info, 152 sizeof(vsi_ctx->info), cd); 153 154 if (!status) { 155 vsi_ctx->vsi_num = le16_to_cpu(res->vsi_num) & ICE_AQ_VSI_NUM_M; 156 vsi_ctx->vsis_allocd = le16_to_cpu(res->vsi_used); 157 vsi_ctx->vsis_unallocated = le16_to_cpu(res->vsi_free); 158 } 159 160 return status; 161 } 162 163 /** 164 * ice_aq_free_vsi 165 * @hw: pointer to the HW struct 166 * @vsi_ctx: pointer to a VSI context struct 167 * @keep_vsi_alloc: keep VSI allocation as part of this PF's resources 168 * @cd: pointer to command details structure or NULL 169 * 170 * Free VSI context info from hardware (0x0213) 171 */ 172 static enum ice_status 173 ice_aq_free_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx, 174 bool keep_vsi_alloc, struct ice_sq_cd *cd) 175 { 176 struct ice_aqc_add_update_free_vsi_resp *resp; 177 struct ice_aqc_add_get_update_free_vsi *cmd; 178 struct ice_aq_desc desc; 179 enum ice_status status; 180 181 cmd = &desc.params.vsi_cmd; 182 resp = &desc.params.add_update_free_vsi_res; 183 184 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_free_vsi); 185 186 cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num | ICE_AQ_VSI_IS_VALID); 187 if (keep_vsi_alloc) 188 cmd->cmd_flags = cpu_to_le16(ICE_AQ_VSI_KEEP_ALLOC); 189 190 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd); 191 if (!status) { 192 vsi_ctx->vsis_allocd = le16_to_cpu(resp->vsi_used); 193 vsi_ctx->vsis_unallocated = le16_to_cpu(resp->vsi_free); 194 } 195 196 return status; 197 } 198 199 /** 200 * ice_aq_update_vsi 201 * @hw: pointer to the HW struct 202 * @vsi_ctx: pointer to a VSI context struct 203 * @cd: pointer to command details structure or NULL 204 * 205 * Update VSI context in the hardware (0x0211) 206 */ 207 static enum ice_status 208 ice_aq_update_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx, 209 struct ice_sq_cd *cd) 210 { 211 struct ice_aqc_add_update_free_vsi_resp *resp; 212 struct ice_aqc_add_get_update_free_vsi *cmd; 213 struct ice_aq_desc desc; 214 enum ice_status status; 215 216 cmd = &desc.params.vsi_cmd; 217 resp = &desc.params.add_update_free_vsi_res; 218 219 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_update_vsi); 220 221 cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num | ICE_AQ_VSI_IS_VALID); 222 223 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); 224 225 status = ice_aq_send_cmd(hw, &desc, &vsi_ctx->info, 226 sizeof(vsi_ctx->info), cd); 227 228 if (!status) { 229 vsi_ctx->vsis_allocd = le16_to_cpu(resp->vsi_used); 230 vsi_ctx->vsis_unallocated = le16_to_cpu(resp->vsi_free); 231 } 232 233 return status; 234 } 235 236 /** 237 * ice_is_vsi_valid - check whether the VSI is valid or not 238 * @hw: pointer to the HW struct 239 * @vsi_handle: VSI handle 240 * 241 * check whether the VSI is valid or not 242 */ 243 bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle) 244 { 245 return vsi_handle < ICE_MAX_VSI && hw->vsi_ctx[vsi_handle]; 246 } 247 248 /** 249 * ice_get_hw_vsi_num - return the HW VSI number 250 * @hw: pointer to the HW struct 251 * @vsi_handle: VSI handle 252 * 253 * return the HW VSI number 254 * Caution: call this function only if VSI is valid (ice_is_vsi_valid) 255 */ 256 u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle) 257 { 258 return hw->vsi_ctx[vsi_handle]->vsi_num; 259 } 260 261 /** 262 * ice_get_vsi_ctx - return the VSI context entry for a given VSI handle 263 * @hw: pointer to the HW struct 264 * @vsi_handle: VSI handle 265 * 266 * return the VSI context entry for a given VSI handle 267 */ 268 struct ice_vsi_ctx *ice_get_vsi_ctx(struct ice_hw *hw, u16 vsi_handle) 269 { 270 return (vsi_handle >= ICE_MAX_VSI) ? NULL : hw->vsi_ctx[vsi_handle]; 271 } 272 273 /** 274 * ice_save_vsi_ctx - save the VSI context for a given VSI handle 275 * @hw: pointer to the HW struct 276 * @vsi_handle: VSI handle 277 * @vsi: VSI context pointer 278 * 279 * save the VSI context entry for a given VSI handle 280 */ 281 static void 282 ice_save_vsi_ctx(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi) 283 { 284 hw->vsi_ctx[vsi_handle] = vsi; 285 } 286 287 /** 288 * ice_clear_vsi_q_ctx - clear VSI queue contexts for all TCs 289 * @hw: pointer to the HW struct 290 * @vsi_handle: VSI handle 291 */ 292 static void ice_clear_vsi_q_ctx(struct ice_hw *hw, u16 vsi_handle) 293 { 294 struct ice_vsi_ctx *vsi; 295 u8 i; 296 297 vsi = ice_get_vsi_ctx(hw, vsi_handle); 298 if (!vsi) 299 return; 300 ice_for_each_traffic_class(i) { 301 if (vsi->lan_q_ctx[i]) { 302 devm_kfree(ice_hw_to_dev(hw), vsi->lan_q_ctx[i]); 303 vsi->lan_q_ctx[i] = NULL; 304 } 305 } 306 } 307 308 /** 309 * ice_clear_vsi_ctx - clear the VSI context entry 310 * @hw: pointer to the HW struct 311 * @vsi_handle: VSI handle 312 * 313 * clear the VSI context entry 314 */ 315 static void ice_clear_vsi_ctx(struct ice_hw *hw, u16 vsi_handle) 316 { 317 struct ice_vsi_ctx *vsi; 318 319 vsi = ice_get_vsi_ctx(hw, vsi_handle); 320 if (vsi) { 321 ice_clear_vsi_q_ctx(hw, vsi_handle); 322 devm_kfree(ice_hw_to_dev(hw), vsi); 323 hw->vsi_ctx[vsi_handle] = NULL; 324 } 325 } 326 327 /** 328 * ice_clear_all_vsi_ctx - clear all the VSI context entries 329 * @hw: pointer to the HW struct 330 */ 331 void ice_clear_all_vsi_ctx(struct ice_hw *hw) 332 { 333 u16 i; 334 335 for (i = 0; i < ICE_MAX_VSI; i++) 336 ice_clear_vsi_ctx(hw, i); 337 } 338 339 /** 340 * ice_add_vsi - add VSI context to the hardware and VSI handle list 341 * @hw: pointer to the HW struct 342 * @vsi_handle: unique VSI handle provided by drivers 343 * @vsi_ctx: pointer to a VSI context struct 344 * @cd: pointer to command details structure or NULL 345 * 346 * Add a VSI context to the hardware also add it into the VSI handle list. 347 * If this function gets called after reset for existing VSIs then update 348 * with the new HW VSI number in the corresponding VSI handle list entry. 349 */ 350 enum ice_status 351 ice_add_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx, 352 struct ice_sq_cd *cd) 353 { 354 struct ice_vsi_ctx *tmp_vsi_ctx; 355 enum ice_status status; 356 357 if (vsi_handle >= ICE_MAX_VSI) 358 return ICE_ERR_PARAM; 359 status = ice_aq_add_vsi(hw, vsi_ctx, cd); 360 if (status) 361 return status; 362 tmp_vsi_ctx = ice_get_vsi_ctx(hw, vsi_handle); 363 if (!tmp_vsi_ctx) { 364 /* Create a new VSI context */ 365 tmp_vsi_ctx = devm_kzalloc(ice_hw_to_dev(hw), 366 sizeof(*tmp_vsi_ctx), GFP_KERNEL); 367 if (!tmp_vsi_ctx) { 368 ice_aq_free_vsi(hw, vsi_ctx, false, cd); 369 return ICE_ERR_NO_MEMORY; 370 } 371 *tmp_vsi_ctx = *vsi_ctx; 372 ice_save_vsi_ctx(hw, vsi_handle, tmp_vsi_ctx); 373 } else { 374 /* update with new HW VSI num */ 375 tmp_vsi_ctx->vsi_num = vsi_ctx->vsi_num; 376 } 377 378 return 0; 379 } 380 381 /** 382 * ice_free_vsi- free VSI context from hardware and VSI handle list 383 * @hw: pointer to the HW struct 384 * @vsi_handle: unique VSI handle 385 * @vsi_ctx: pointer to a VSI context struct 386 * @keep_vsi_alloc: keep VSI allocation as part of this PF's resources 387 * @cd: pointer to command details structure or NULL 388 * 389 * Free VSI context info from hardware as well as from VSI handle list 390 */ 391 enum ice_status 392 ice_free_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx, 393 bool keep_vsi_alloc, struct ice_sq_cd *cd) 394 { 395 enum ice_status status; 396 397 if (!ice_is_vsi_valid(hw, vsi_handle)) 398 return ICE_ERR_PARAM; 399 vsi_ctx->vsi_num = ice_get_hw_vsi_num(hw, vsi_handle); 400 status = ice_aq_free_vsi(hw, vsi_ctx, keep_vsi_alloc, cd); 401 if (!status) 402 ice_clear_vsi_ctx(hw, vsi_handle); 403 return status; 404 } 405 406 /** 407 * ice_update_vsi 408 * @hw: pointer to the HW struct 409 * @vsi_handle: unique VSI handle 410 * @vsi_ctx: pointer to a VSI context struct 411 * @cd: pointer to command details structure or NULL 412 * 413 * Update VSI context in the hardware 414 */ 415 enum ice_status 416 ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx, 417 struct ice_sq_cd *cd) 418 { 419 if (!ice_is_vsi_valid(hw, vsi_handle)) 420 return ICE_ERR_PARAM; 421 vsi_ctx->vsi_num = ice_get_hw_vsi_num(hw, vsi_handle); 422 return ice_aq_update_vsi(hw, vsi_ctx, cd); 423 } 424 425 /** 426 * ice_aq_alloc_free_vsi_list 427 * @hw: pointer to the HW struct 428 * @vsi_list_id: VSI list ID returned or used for lookup 429 * @lkup_type: switch rule filter lookup type 430 * @opc: switch rules population command type - pass in the command opcode 431 * 432 * allocates or free a VSI list resource 433 */ 434 static enum ice_status 435 ice_aq_alloc_free_vsi_list(struct ice_hw *hw, u16 *vsi_list_id, 436 enum ice_sw_lkup_type lkup_type, 437 enum ice_adminq_opc opc) 438 { 439 struct ice_aqc_alloc_free_res_elem *sw_buf; 440 struct ice_aqc_res_elem *vsi_ele; 441 enum ice_status status; 442 u16 buf_len; 443 444 buf_len = struct_size(sw_buf, elem, 1); 445 sw_buf = devm_kzalloc(ice_hw_to_dev(hw), buf_len, GFP_KERNEL); 446 if (!sw_buf) 447 return ICE_ERR_NO_MEMORY; 448 sw_buf->num_elems = cpu_to_le16(1); 449 450 if (lkup_type == ICE_SW_LKUP_MAC || 451 lkup_type == ICE_SW_LKUP_MAC_VLAN || 452 lkup_type == ICE_SW_LKUP_ETHERTYPE || 453 lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC || 454 lkup_type == ICE_SW_LKUP_PROMISC || 455 lkup_type == ICE_SW_LKUP_PROMISC_VLAN) { 456 sw_buf->res_type = cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_REP); 457 } else if (lkup_type == ICE_SW_LKUP_VLAN) { 458 sw_buf->res_type = 459 cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_PRUNE); 460 } else { 461 status = ICE_ERR_PARAM; 462 goto ice_aq_alloc_free_vsi_list_exit; 463 } 464 465 if (opc == ice_aqc_opc_free_res) 466 sw_buf->elem[0].e.sw_resp = cpu_to_le16(*vsi_list_id); 467 468 status = ice_aq_alloc_free_res(hw, 1, sw_buf, buf_len, opc, NULL); 469 if (status) 470 goto ice_aq_alloc_free_vsi_list_exit; 471 472 if (opc == ice_aqc_opc_alloc_res) { 473 vsi_ele = &sw_buf->elem[0]; 474 *vsi_list_id = le16_to_cpu(vsi_ele->e.sw_resp); 475 } 476 477 ice_aq_alloc_free_vsi_list_exit: 478 devm_kfree(ice_hw_to_dev(hw), sw_buf); 479 return status; 480 } 481 482 /** 483 * ice_aq_sw_rules - add/update/remove switch rules 484 * @hw: pointer to the HW struct 485 * @rule_list: pointer to switch rule population list 486 * @rule_list_sz: total size of the rule list in bytes 487 * @num_rules: number of switch rules in the rule_list 488 * @opc: switch rules population command type - pass in the command opcode 489 * @cd: pointer to command details structure or NULL 490 * 491 * Add(0x02a0)/Update(0x02a1)/Remove(0x02a2) switch rules commands to firmware 492 */ 493 static enum ice_status 494 ice_aq_sw_rules(struct ice_hw *hw, void *rule_list, u16 rule_list_sz, 495 u8 num_rules, enum ice_adminq_opc opc, struct ice_sq_cd *cd) 496 { 497 struct ice_aq_desc desc; 498 enum ice_status status; 499 500 if (opc != ice_aqc_opc_add_sw_rules && 501 opc != ice_aqc_opc_update_sw_rules && 502 opc != ice_aqc_opc_remove_sw_rules) 503 return ICE_ERR_PARAM; 504 505 ice_fill_dflt_direct_cmd_desc(&desc, opc); 506 507 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); 508 desc.params.sw_rules.num_rules_fltr_entry_index = 509 cpu_to_le16(num_rules); 510 status = ice_aq_send_cmd(hw, &desc, rule_list, rule_list_sz, cd); 511 if (opc != ice_aqc_opc_add_sw_rules && 512 hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) 513 status = ICE_ERR_DOES_NOT_EXIST; 514 515 return status; 516 } 517 518 /* ice_init_port_info - Initialize port_info with switch configuration data 519 * @pi: pointer to port_info 520 * @vsi_port_num: VSI number or port number 521 * @type: Type of switch element (port or VSI) 522 * @swid: switch ID of the switch the element is attached to 523 * @pf_vf_num: PF or VF number 524 * @is_vf: true if the element is a VF, false otherwise 525 */ 526 static void 527 ice_init_port_info(struct ice_port_info *pi, u16 vsi_port_num, u8 type, 528 u16 swid, u16 pf_vf_num, bool is_vf) 529 { 530 switch (type) { 531 case ICE_AQC_GET_SW_CONF_RESP_PHYS_PORT: 532 pi->lport = (u8)(vsi_port_num & ICE_LPORT_MASK); 533 pi->sw_id = swid; 534 pi->pf_vf_num = pf_vf_num; 535 pi->is_vf = is_vf; 536 pi->dflt_tx_vsi_num = ICE_DFLT_VSI_INVAL; 537 pi->dflt_rx_vsi_num = ICE_DFLT_VSI_INVAL; 538 break; 539 default: 540 ice_debug(pi->hw, ICE_DBG_SW, "incorrect VSI/port type received\n"); 541 break; 542 } 543 } 544 545 /* ice_get_initial_sw_cfg - Get initial port and default VSI data 546 * @hw: pointer to the hardware structure 547 */ 548 enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw) 549 { 550 struct ice_aqc_get_sw_cfg_resp_elem *rbuf; 551 enum ice_status status; 552 u16 req_desc = 0; 553 u16 num_elems; 554 u16 i; 555 556 rbuf = devm_kzalloc(ice_hw_to_dev(hw), ICE_SW_CFG_MAX_BUF_LEN, 557 GFP_KERNEL); 558 559 if (!rbuf) 560 return ICE_ERR_NO_MEMORY; 561 562 /* Multiple calls to ice_aq_get_sw_cfg may be required 563 * to get all the switch configuration information. The need 564 * for additional calls is indicated by ice_aq_get_sw_cfg 565 * writing a non-zero value in req_desc 566 */ 567 do { 568 struct ice_aqc_get_sw_cfg_resp_elem *ele; 569 570 status = ice_aq_get_sw_cfg(hw, rbuf, ICE_SW_CFG_MAX_BUF_LEN, 571 &req_desc, &num_elems, NULL); 572 573 if (status) 574 break; 575 576 for (i = 0, ele = rbuf; i < num_elems; i++, ele++) { 577 u16 pf_vf_num, swid, vsi_port_num; 578 bool is_vf = false; 579 u8 res_type; 580 581 vsi_port_num = le16_to_cpu(ele->vsi_port_num) & 582 ICE_AQC_GET_SW_CONF_RESP_VSI_PORT_NUM_M; 583 584 pf_vf_num = le16_to_cpu(ele->pf_vf_num) & 585 ICE_AQC_GET_SW_CONF_RESP_FUNC_NUM_M; 586 587 swid = le16_to_cpu(ele->swid); 588 589 if (le16_to_cpu(ele->pf_vf_num) & 590 ICE_AQC_GET_SW_CONF_RESP_IS_VF) 591 is_vf = true; 592 593 res_type = (u8)(le16_to_cpu(ele->vsi_port_num) >> 594 ICE_AQC_GET_SW_CONF_RESP_TYPE_S); 595 596 if (res_type == ICE_AQC_GET_SW_CONF_RESP_VSI) { 597 /* FW VSI is not needed. Just continue. */ 598 continue; 599 } 600 601 ice_init_port_info(hw->port_info, vsi_port_num, 602 res_type, swid, pf_vf_num, is_vf); 603 } 604 } while (req_desc && !status); 605 606 devm_kfree(ice_hw_to_dev(hw), (void *)rbuf); 607 return status; 608 } 609 610 /** 611 * ice_fill_sw_info - Helper function to populate lb_en and lan_en 612 * @hw: pointer to the hardware structure 613 * @fi: filter info structure to fill/update 614 * 615 * This helper function populates the lb_en and lan_en elements of the provided 616 * ice_fltr_info struct using the switch's type and characteristics of the 617 * switch rule being configured. 618 */ 619 static void ice_fill_sw_info(struct ice_hw *hw, struct ice_fltr_info *fi) 620 { 621 fi->lb_en = false; 622 fi->lan_en = false; 623 if ((fi->flag & ICE_FLTR_TX) && 624 (fi->fltr_act == ICE_FWD_TO_VSI || 625 fi->fltr_act == ICE_FWD_TO_VSI_LIST || 626 fi->fltr_act == ICE_FWD_TO_Q || 627 fi->fltr_act == ICE_FWD_TO_QGRP)) { 628 /* Setting LB for prune actions will result in replicated 629 * packets to the internal switch that will be dropped. 630 */ 631 if (fi->lkup_type != ICE_SW_LKUP_VLAN) 632 fi->lb_en = true; 633 634 /* Set lan_en to TRUE if 635 * 1. The switch is a VEB AND 636 * 2 637 * 2.1 The lookup is a directional lookup like ethertype, 638 * promiscuous, ethertype-MAC, promiscuous-VLAN 639 * and default-port OR 640 * 2.2 The lookup is VLAN, OR 641 * 2.3 The lookup is MAC with mcast or bcast addr for MAC, OR 642 * 2.4 The lookup is MAC_VLAN with mcast or bcast addr for MAC. 643 * 644 * OR 645 * 646 * The switch is a VEPA. 647 * 648 * In all other cases, the LAN enable has to be set to false. 649 */ 650 if (hw->evb_veb) { 651 if (fi->lkup_type == ICE_SW_LKUP_ETHERTYPE || 652 fi->lkup_type == ICE_SW_LKUP_PROMISC || 653 fi->lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC || 654 fi->lkup_type == ICE_SW_LKUP_PROMISC_VLAN || 655 fi->lkup_type == ICE_SW_LKUP_DFLT || 656 fi->lkup_type == ICE_SW_LKUP_VLAN || 657 (fi->lkup_type == ICE_SW_LKUP_MAC && 658 !is_unicast_ether_addr(fi->l_data.mac.mac_addr)) || 659 (fi->lkup_type == ICE_SW_LKUP_MAC_VLAN && 660 !is_unicast_ether_addr(fi->l_data.mac.mac_addr))) 661 fi->lan_en = true; 662 } else { 663 fi->lan_en = true; 664 } 665 } 666 } 667 668 /** 669 * ice_fill_sw_rule - Helper function to fill switch rule structure 670 * @hw: pointer to the hardware structure 671 * @f_info: entry containing packet forwarding information 672 * @s_rule: switch rule structure to be filled in based on mac_entry 673 * @opc: switch rules population command type - pass in the command opcode 674 */ 675 static void 676 ice_fill_sw_rule(struct ice_hw *hw, struct ice_fltr_info *f_info, 677 struct ice_aqc_sw_rules_elem *s_rule, enum ice_adminq_opc opc) 678 { 679 u16 vlan_id = ICE_MAX_VLAN_ID + 1; 680 void *daddr = NULL; 681 u16 eth_hdr_sz; 682 u8 *eth_hdr; 683 u32 act = 0; 684 __be16 *off; 685 u8 q_rgn; 686 687 if (opc == ice_aqc_opc_remove_sw_rules) { 688 s_rule->pdata.lkup_tx_rx.act = 0; 689 s_rule->pdata.lkup_tx_rx.index = 690 cpu_to_le16(f_info->fltr_rule_id); 691 s_rule->pdata.lkup_tx_rx.hdr_len = 0; 692 return; 693 } 694 695 eth_hdr_sz = sizeof(dummy_eth_header); 696 eth_hdr = s_rule->pdata.lkup_tx_rx.hdr; 697 698 /* initialize the ether header with a dummy header */ 699 memcpy(eth_hdr, dummy_eth_header, eth_hdr_sz); 700 ice_fill_sw_info(hw, f_info); 701 702 switch (f_info->fltr_act) { 703 case ICE_FWD_TO_VSI: 704 act |= (f_info->fwd_id.hw_vsi_id << ICE_SINGLE_ACT_VSI_ID_S) & 705 ICE_SINGLE_ACT_VSI_ID_M; 706 if (f_info->lkup_type != ICE_SW_LKUP_VLAN) 707 act |= ICE_SINGLE_ACT_VSI_FORWARDING | 708 ICE_SINGLE_ACT_VALID_BIT; 709 break; 710 case ICE_FWD_TO_VSI_LIST: 711 act |= ICE_SINGLE_ACT_VSI_LIST; 712 act |= (f_info->fwd_id.vsi_list_id << 713 ICE_SINGLE_ACT_VSI_LIST_ID_S) & 714 ICE_SINGLE_ACT_VSI_LIST_ID_M; 715 if (f_info->lkup_type != ICE_SW_LKUP_VLAN) 716 act |= ICE_SINGLE_ACT_VSI_FORWARDING | 717 ICE_SINGLE_ACT_VALID_BIT; 718 break; 719 case ICE_FWD_TO_Q: 720 act |= ICE_SINGLE_ACT_TO_Q; 721 act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) & 722 ICE_SINGLE_ACT_Q_INDEX_M; 723 break; 724 case ICE_DROP_PACKET: 725 act |= ICE_SINGLE_ACT_VSI_FORWARDING | ICE_SINGLE_ACT_DROP | 726 ICE_SINGLE_ACT_VALID_BIT; 727 break; 728 case ICE_FWD_TO_QGRP: 729 q_rgn = f_info->qgrp_size > 0 ? 730 (u8)ilog2(f_info->qgrp_size) : 0; 731 act |= ICE_SINGLE_ACT_TO_Q; 732 act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) & 733 ICE_SINGLE_ACT_Q_INDEX_M; 734 act |= (q_rgn << ICE_SINGLE_ACT_Q_REGION_S) & 735 ICE_SINGLE_ACT_Q_REGION_M; 736 break; 737 default: 738 return; 739 } 740 741 if (f_info->lb_en) 742 act |= ICE_SINGLE_ACT_LB_ENABLE; 743 if (f_info->lan_en) 744 act |= ICE_SINGLE_ACT_LAN_ENABLE; 745 746 switch (f_info->lkup_type) { 747 case ICE_SW_LKUP_MAC: 748 daddr = f_info->l_data.mac.mac_addr; 749 break; 750 case ICE_SW_LKUP_VLAN: 751 vlan_id = f_info->l_data.vlan.vlan_id; 752 if (f_info->fltr_act == ICE_FWD_TO_VSI || 753 f_info->fltr_act == ICE_FWD_TO_VSI_LIST) { 754 act |= ICE_SINGLE_ACT_PRUNE; 755 act |= ICE_SINGLE_ACT_EGRESS | ICE_SINGLE_ACT_INGRESS; 756 } 757 break; 758 case ICE_SW_LKUP_ETHERTYPE_MAC: 759 daddr = f_info->l_data.ethertype_mac.mac_addr; 760 fallthrough; 761 case ICE_SW_LKUP_ETHERTYPE: 762 off = (__force __be16 *)(eth_hdr + ICE_ETH_ETHTYPE_OFFSET); 763 *off = cpu_to_be16(f_info->l_data.ethertype_mac.ethertype); 764 break; 765 case ICE_SW_LKUP_MAC_VLAN: 766 daddr = f_info->l_data.mac_vlan.mac_addr; 767 vlan_id = f_info->l_data.mac_vlan.vlan_id; 768 break; 769 case ICE_SW_LKUP_PROMISC_VLAN: 770 vlan_id = f_info->l_data.mac_vlan.vlan_id; 771 fallthrough; 772 case ICE_SW_LKUP_PROMISC: 773 daddr = f_info->l_data.mac_vlan.mac_addr; 774 break; 775 default: 776 break; 777 } 778 779 s_rule->type = (f_info->flag & ICE_FLTR_RX) ? 780 cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_RX) : 781 cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_TX); 782 783 /* Recipe set depending on lookup type */ 784 s_rule->pdata.lkup_tx_rx.recipe_id = cpu_to_le16(f_info->lkup_type); 785 s_rule->pdata.lkup_tx_rx.src = cpu_to_le16(f_info->src); 786 s_rule->pdata.lkup_tx_rx.act = cpu_to_le32(act); 787 788 if (daddr) 789 ether_addr_copy(eth_hdr + ICE_ETH_DA_OFFSET, daddr); 790 791 if (!(vlan_id > ICE_MAX_VLAN_ID)) { 792 off = (__force __be16 *)(eth_hdr + ICE_ETH_VLAN_TCI_OFFSET); 793 *off = cpu_to_be16(vlan_id); 794 } 795 796 /* Create the switch rule with the final dummy Ethernet header */ 797 if (opc != ice_aqc_opc_update_sw_rules) 798 s_rule->pdata.lkup_tx_rx.hdr_len = cpu_to_le16(eth_hdr_sz); 799 } 800 801 /** 802 * ice_add_marker_act 803 * @hw: pointer to the hardware structure 804 * @m_ent: the management entry for which sw marker needs to be added 805 * @sw_marker: sw marker to tag the Rx descriptor with 806 * @l_id: large action resource ID 807 * 808 * Create a large action to hold software marker and update the switch rule 809 * entry pointed by m_ent with newly created large action 810 */ 811 static enum ice_status 812 ice_add_marker_act(struct ice_hw *hw, struct ice_fltr_mgmt_list_entry *m_ent, 813 u16 sw_marker, u16 l_id) 814 { 815 struct ice_aqc_sw_rules_elem *lg_act, *rx_tx; 816 /* For software marker we need 3 large actions 817 * 1. FWD action: FWD TO VSI or VSI LIST 818 * 2. GENERIC VALUE action to hold the profile ID 819 * 3. GENERIC VALUE action to hold the software marker ID 820 */ 821 const u16 num_lg_acts = 3; 822 enum ice_status status; 823 u16 lg_act_size; 824 u16 rules_size; 825 u32 act; 826 u16 id; 827 828 if (m_ent->fltr_info.lkup_type != ICE_SW_LKUP_MAC) 829 return ICE_ERR_PARAM; 830 831 /* Create two back-to-back switch rules and submit them to the HW using 832 * one memory buffer: 833 * 1. Large Action 834 * 2. Look up Tx Rx 835 */ 836 lg_act_size = (u16)ICE_SW_RULE_LG_ACT_SIZE(num_lg_acts); 837 rules_size = lg_act_size + ICE_SW_RULE_RX_TX_ETH_HDR_SIZE; 838 lg_act = devm_kzalloc(ice_hw_to_dev(hw), rules_size, GFP_KERNEL); 839 if (!lg_act) 840 return ICE_ERR_NO_MEMORY; 841 842 rx_tx = (struct ice_aqc_sw_rules_elem *)((u8 *)lg_act + lg_act_size); 843 844 /* Fill in the first switch rule i.e. large action */ 845 lg_act->type = cpu_to_le16(ICE_AQC_SW_RULES_T_LG_ACT); 846 lg_act->pdata.lg_act.index = cpu_to_le16(l_id); 847 lg_act->pdata.lg_act.size = cpu_to_le16(num_lg_acts); 848 849 /* First action VSI forwarding or VSI list forwarding depending on how 850 * many VSIs 851 */ 852 id = (m_ent->vsi_count > 1) ? m_ent->fltr_info.fwd_id.vsi_list_id : 853 m_ent->fltr_info.fwd_id.hw_vsi_id; 854 855 act = ICE_LG_ACT_VSI_FORWARDING | ICE_LG_ACT_VALID_BIT; 856 act |= (id << ICE_LG_ACT_VSI_LIST_ID_S) & ICE_LG_ACT_VSI_LIST_ID_M; 857 if (m_ent->vsi_count > 1) 858 act |= ICE_LG_ACT_VSI_LIST; 859 lg_act->pdata.lg_act.act[0] = cpu_to_le32(act); 860 861 /* Second action descriptor type */ 862 act = ICE_LG_ACT_GENERIC; 863 864 act |= (1 << ICE_LG_ACT_GENERIC_VALUE_S) & ICE_LG_ACT_GENERIC_VALUE_M; 865 lg_act->pdata.lg_act.act[1] = cpu_to_le32(act); 866 867 act = (ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX << 868 ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_OFFSET_M; 869 870 /* Third action Marker value */ 871 act |= ICE_LG_ACT_GENERIC; 872 act |= (sw_marker << ICE_LG_ACT_GENERIC_VALUE_S) & 873 ICE_LG_ACT_GENERIC_VALUE_M; 874 875 lg_act->pdata.lg_act.act[2] = cpu_to_le32(act); 876 877 /* call the fill switch rule to fill the lookup Tx Rx structure */ 878 ice_fill_sw_rule(hw, &m_ent->fltr_info, rx_tx, 879 ice_aqc_opc_update_sw_rules); 880 881 /* Update the action to point to the large action ID */ 882 rx_tx->pdata.lkup_tx_rx.act = 883 cpu_to_le32(ICE_SINGLE_ACT_PTR | 884 ((l_id << ICE_SINGLE_ACT_PTR_VAL_S) & 885 ICE_SINGLE_ACT_PTR_VAL_M)); 886 887 /* Use the filter rule ID of the previously created rule with single 888 * act. Once the update happens, hardware will treat this as large 889 * action 890 */ 891 rx_tx->pdata.lkup_tx_rx.index = 892 cpu_to_le16(m_ent->fltr_info.fltr_rule_id); 893 894 status = ice_aq_sw_rules(hw, lg_act, rules_size, 2, 895 ice_aqc_opc_update_sw_rules, NULL); 896 if (!status) { 897 m_ent->lg_act_idx = l_id; 898 m_ent->sw_marker_id = sw_marker; 899 } 900 901 devm_kfree(ice_hw_to_dev(hw), lg_act); 902 return status; 903 } 904 905 /** 906 * ice_create_vsi_list_map 907 * @hw: pointer to the hardware structure 908 * @vsi_handle_arr: array of VSI handles to set in the VSI mapping 909 * @num_vsi: number of VSI handles in the array 910 * @vsi_list_id: VSI list ID generated as part of allocate resource 911 * 912 * Helper function to create a new entry of VSI list ID to VSI mapping 913 * using the given VSI list ID 914 */ 915 static struct ice_vsi_list_map_info * 916 ice_create_vsi_list_map(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi, 917 u16 vsi_list_id) 918 { 919 struct ice_switch_info *sw = hw->switch_info; 920 struct ice_vsi_list_map_info *v_map; 921 int i; 922 923 v_map = devm_kcalloc(ice_hw_to_dev(hw), 1, sizeof(*v_map), GFP_KERNEL); 924 if (!v_map) 925 return NULL; 926 927 v_map->vsi_list_id = vsi_list_id; 928 v_map->ref_cnt = 1; 929 for (i = 0; i < num_vsi; i++) 930 set_bit(vsi_handle_arr[i], v_map->vsi_map); 931 932 list_add(&v_map->list_entry, &sw->vsi_list_map_head); 933 return v_map; 934 } 935 936 /** 937 * ice_update_vsi_list_rule 938 * @hw: pointer to the hardware structure 939 * @vsi_handle_arr: array of VSI handles to form a VSI list 940 * @num_vsi: number of VSI handles in the array 941 * @vsi_list_id: VSI list ID generated as part of allocate resource 942 * @remove: Boolean value to indicate if this is a remove action 943 * @opc: switch rules population command type - pass in the command opcode 944 * @lkup_type: lookup type of the filter 945 * 946 * Call AQ command to add a new switch rule or update existing switch rule 947 * using the given VSI list ID 948 */ 949 static enum ice_status 950 ice_update_vsi_list_rule(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi, 951 u16 vsi_list_id, bool remove, enum ice_adminq_opc opc, 952 enum ice_sw_lkup_type lkup_type) 953 { 954 struct ice_aqc_sw_rules_elem *s_rule; 955 enum ice_status status; 956 u16 s_rule_size; 957 u16 rule_type; 958 int i; 959 960 if (!num_vsi) 961 return ICE_ERR_PARAM; 962 963 if (lkup_type == ICE_SW_LKUP_MAC || 964 lkup_type == ICE_SW_LKUP_MAC_VLAN || 965 lkup_type == ICE_SW_LKUP_ETHERTYPE || 966 lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC || 967 lkup_type == ICE_SW_LKUP_PROMISC || 968 lkup_type == ICE_SW_LKUP_PROMISC_VLAN) 969 rule_type = remove ? ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR : 970 ICE_AQC_SW_RULES_T_VSI_LIST_SET; 971 else if (lkup_type == ICE_SW_LKUP_VLAN) 972 rule_type = remove ? ICE_AQC_SW_RULES_T_PRUNE_LIST_CLEAR : 973 ICE_AQC_SW_RULES_T_PRUNE_LIST_SET; 974 else 975 return ICE_ERR_PARAM; 976 977 s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(num_vsi); 978 s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL); 979 if (!s_rule) 980 return ICE_ERR_NO_MEMORY; 981 for (i = 0; i < num_vsi; i++) { 982 if (!ice_is_vsi_valid(hw, vsi_handle_arr[i])) { 983 status = ICE_ERR_PARAM; 984 goto exit; 985 } 986 /* AQ call requires hw_vsi_id(s) */ 987 s_rule->pdata.vsi_list.vsi[i] = 988 cpu_to_le16(ice_get_hw_vsi_num(hw, vsi_handle_arr[i])); 989 } 990 991 s_rule->type = cpu_to_le16(rule_type); 992 s_rule->pdata.vsi_list.number_vsi = cpu_to_le16(num_vsi); 993 s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id); 994 995 status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opc, NULL); 996 997 exit: 998 devm_kfree(ice_hw_to_dev(hw), s_rule); 999 return status; 1000 } 1001 1002 /** 1003 * ice_create_vsi_list_rule - Creates and populates a VSI list rule 1004 * @hw: pointer to the HW struct 1005 * @vsi_handle_arr: array of VSI handles to form a VSI list 1006 * @num_vsi: number of VSI handles in the array 1007 * @vsi_list_id: stores the ID of the VSI list to be created 1008 * @lkup_type: switch rule filter's lookup type 1009 */ 1010 static enum ice_status 1011 ice_create_vsi_list_rule(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi, 1012 u16 *vsi_list_id, enum ice_sw_lkup_type lkup_type) 1013 { 1014 enum ice_status status; 1015 1016 status = ice_aq_alloc_free_vsi_list(hw, vsi_list_id, lkup_type, 1017 ice_aqc_opc_alloc_res); 1018 if (status) 1019 return status; 1020 1021 /* Update the newly created VSI list to include the specified VSIs */ 1022 return ice_update_vsi_list_rule(hw, vsi_handle_arr, num_vsi, 1023 *vsi_list_id, false, 1024 ice_aqc_opc_add_sw_rules, lkup_type); 1025 } 1026 1027 /** 1028 * ice_create_pkt_fwd_rule 1029 * @hw: pointer to the hardware structure 1030 * @f_entry: entry containing packet forwarding information 1031 * 1032 * Create switch rule with given filter information and add an entry 1033 * to the corresponding filter management list to track this switch rule 1034 * and VSI mapping 1035 */ 1036 static enum ice_status 1037 ice_create_pkt_fwd_rule(struct ice_hw *hw, 1038 struct ice_fltr_list_entry *f_entry) 1039 { 1040 struct ice_fltr_mgmt_list_entry *fm_entry; 1041 struct ice_aqc_sw_rules_elem *s_rule; 1042 enum ice_sw_lkup_type l_type; 1043 struct ice_sw_recipe *recp; 1044 enum ice_status status; 1045 1046 s_rule = devm_kzalloc(ice_hw_to_dev(hw), 1047 ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, GFP_KERNEL); 1048 if (!s_rule) 1049 return ICE_ERR_NO_MEMORY; 1050 fm_entry = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*fm_entry), 1051 GFP_KERNEL); 1052 if (!fm_entry) { 1053 status = ICE_ERR_NO_MEMORY; 1054 goto ice_create_pkt_fwd_rule_exit; 1055 } 1056 1057 fm_entry->fltr_info = f_entry->fltr_info; 1058 1059 /* Initialize all the fields for the management entry */ 1060 fm_entry->vsi_count = 1; 1061 fm_entry->lg_act_idx = ICE_INVAL_LG_ACT_INDEX; 1062 fm_entry->sw_marker_id = ICE_INVAL_SW_MARKER_ID; 1063 fm_entry->counter_index = ICE_INVAL_COUNTER_ID; 1064 1065 ice_fill_sw_rule(hw, &fm_entry->fltr_info, s_rule, 1066 ice_aqc_opc_add_sw_rules); 1067 1068 status = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1, 1069 ice_aqc_opc_add_sw_rules, NULL); 1070 if (status) { 1071 devm_kfree(ice_hw_to_dev(hw), fm_entry); 1072 goto ice_create_pkt_fwd_rule_exit; 1073 } 1074 1075 f_entry->fltr_info.fltr_rule_id = 1076 le16_to_cpu(s_rule->pdata.lkup_tx_rx.index); 1077 fm_entry->fltr_info.fltr_rule_id = 1078 le16_to_cpu(s_rule->pdata.lkup_tx_rx.index); 1079 1080 /* The book keeping entries will get removed when base driver 1081 * calls remove filter AQ command 1082 */ 1083 l_type = fm_entry->fltr_info.lkup_type; 1084 recp = &hw->switch_info->recp_list[l_type]; 1085 list_add(&fm_entry->list_entry, &recp->filt_rules); 1086 1087 ice_create_pkt_fwd_rule_exit: 1088 devm_kfree(ice_hw_to_dev(hw), s_rule); 1089 return status; 1090 } 1091 1092 /** 1093 * ice_update_pkt_fwd_rule 1094 * @hw: pointer to the hardware structure 1095 * @f_info: filter information for switch rule 1096 * 1097 * Call AQ command to update a previously created switch rule with a 1098 * VSI list ID 1099 */ 1100 static enum ice_status 1101 ice_update_pkt_fwd_rule(struct ice_hw *hw, struct ice_fltr_info *f_info) 1102 { 1103 struct ice_aqc_sw_rules_elem *s_rule; 1104 enum ice_status status; 1105 1106 s_rule = devm_kzalloc(ice_hw_to_dev(hw), 1107 ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, GFP_KERNEL); 1108 if (!s_rule) 1109 return ICE_ERR_NO_MEMORY; 1110 1111 ice_fill_sw_rule(hw, f_info, s_rule, ice_aqc_opc_update_sw_rules); 1112 1113 s_rule->pdata.lkup_tx_rx.index = cpu_to_le16(f_info->fltr_rule_id); 1114 1115 /* Update switch rule with new rule set to forward VSI list */ 1116 status = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1, 1117 ice_aqc_opc_update_sw_rules, NULL); 1118 1119 devm_kfree(ice_hw_to_dev(hw), s_rule); 1120 return status; 1121 } 1122 1123 /** 1124 * ice_update_sw_rule_bridge_mode 1125 * @hw: pointer to the HW struct 1126 * 1127 * Updates unicast switch filter rules based on VEB/VEPA mode 1128 */ 1129 enum ice_status ice_update_sw_rule_bridge_mode(struct ice_hw *hw) 1130 { 1131 struct ice_switch_info *sw = hw->switch_info; 1132 struct ice_fltr_mgmt_list_entry *fm_entry; 1133 enum ice_status status = 0; 1134 struct list_head *rule_head; 1135 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1136 1137 rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock; 1138 rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules; 1139 1140 mutex_lock(rule_lock); 1141 list_for_each_entry(fm_entry, rule_head, list_entry) { 1142 struct ice_fltr_info *fi = &fm_entry->fltr_info; 1143 u8 *addr = fi->l_data.mac.mac_addr; 1144 1145 /* Update unicast Tx rules to reflect the selected 1146 * VEB/VEPA mode 1147 */ 1148 if ((fi->flag & ICE_FLTR_TX) && is_unicast_ether_addr(addr) && 1149 (fi->fltr_act == ICE_FWD_TO_VSI || 1150 fi->fltr_act == ICE_FWD_TO_VSI_LIST || 1151 fi->fltr_act == ICE_FWD_TO_Q || 1152 fi->fltr_act == ICE_FWD_TO_QGRP)) { 1153 status = ice_update_pkt_fwd_rule(hw, fi); 1154 if (status) 1155 break; 1156 } 1157 } 1158 1159 mutex_unlock(rule_lock); 1160 1161 return status; 1162 } 1163 1164 /** 1165 * ice_add_update_vsi_list 1166 * @hw: pointer to the hardware structure 1167 * @m_entry: pointer to current filter management list entry 1168 * @cur_fltr: filter information from the book keeping entry 1169 * @new_fltr: filter information with the new VSI to be added 1170 * 1171 * Call AQ command to add or update previously created VSI list with new VSI. 1172 * 1173 * Helper function to do book keeping associated with adding filter information 1174 * The algorithm to do the book keeping is described below : 1175 * When a VSI needs to subscribe to a given filter (MAC/VLAN/Ethtype etc.) 1176 * if only one VSI has been added till now 1177 * Allocate a new VSI list and add two VSIs 1178 * to this list using switch rule command 1179 * Update the previously created switch rule with the 1180 * newly created VSI list ID 1181 * if a VSI list was previously created 1182 * Add the new VSI to the previously created VSI list set 1183 * using the update switch rule command 1184 */ 1185 static enum ice_status 1186 ice_add_update_vsi_list(struct ice_hw *hw, 1187 struct ice_fltr_mgmt_list_entry *m_entry, 1188 struct ice_fltr_info *cur_fltr, 1189 struct ice_fltr_info *new_fltr) 1190 { 1191 enum ice_status status = 0; 1192 u16 vsi_list_id = 0; 1193 1194 if ((cur_fltr->fltr_act == ICE_FWD_TO_Q || 1195 cur_fltr->fltr_act == ICE_FWD_TO_QGRP)) 1196 return ICE_ERR_NOT_IMPL; 1197 1198 if ((new_fltr->fltr_act == ICE_FWD_TO_Q || 1199 new_fltr->fltr_act == ICE_FWD_TO_QGRP) && 1200 (cur_fltr->fltr_act == ICE_FWD_TO_VSI || 1201 cur_fltr->fltr_act == ICE_FWD_TO_VSI_LIST)) 1202 return ICE_ERR_NOT_IMPL; 1203 1204 if (m_entry->vsi_count < 2 && !m_entry->vsi_list_info) { 1205 /* Only one entry existed in the mapping and it was not already 1206 * a part of a VSI list. So, create a VSI list with the old and 1207 * new VSIs. 1208 */ 1209 struct ice_fltr_info tmp_fltr; 1210 u16 vsi_handle_arr[2]; 1211 1212 /* A rule already exists with the new VSI being added */ 1213 if (cur_fltr->fwd_id.hw_vsi_id == new_fltr->fwd_id.hw_vsi_id) 1214 return ICE_ERR_ALREADY_EXISTS; 1215 1216 vsi_handle_arr[0] = cur_fltr->vsi_handle; 1217 vsi_handle_arr[1] = new_fltr->vsi_handle; 1218 status = ice_create_vsi_list_rule(hw, &vsi_handle_arr[0], 2, 1219 &vsi_list_id, 1220 new_fltr->lkup_type); 1221 if (status) 1222 return status; 1223 1224 tmp_fltr = *new_fltr; 1225 tmp_fltr.fltr_rule_id = cur_fltr->fltr_rule_id; 1226 tmp_fltr.fltr_act = ICE_FWD_TO_VSI_LIST; 1227 tmp_fltr.fwd_id.vsi_list_id = vsi_list_id; 1228 /* Update the previous switch rule of "MAC forward to VSI" to 1229 * "MAC fwd to VSI list" 1230 */ 1231 status = ice_update_pkt_fwd_rule(hw, &tmp_fltr); 1232 if (status) 1233 return status; 1234 1235 cur_fltr->fwd_id.vsi_list_id = vsi_list_id; 1236 cur_fltr->fltr_act = ICE_FWD_TO_VSI_LIST; 1237 m_entry->vsi_list_info = 1238 ice_create_vsi_list_map(hw, &vsi_handle_arr[0], 2, 1239 vsi_list_id); 1240 1241 /* If this entry was large action then the large action needs 1242 * to be updated to point to FWD to VSI list 1243 */ 1244 if (m_entry->sw_marker_id != ICE_INVAL_SW_MARKER_ID) 1245 status = 1246 ice_add_marker_act(hw, m_entry, 1247 m_entry->sw_marker_id, 1248 m_entry->lg_act_idx); 1249 } else { 1250 u16 vsi_handle = new_fltr->vsi_handle; 1251 enum ice_adminq_opc opcode; 1252 1253 if (!m_entry->vsi_list_info) 1254 return ICE_ERR_CFG; 1255 1256 /* A rule already exists with the new VSI being added */ 1257 if (test_bit(vsi_handle, m_entry->vsi_list_info->vsi_map)) 1258 return 0; 1259 1260 /* Update the previously created VSI list set with 1261 * the new VSI ID passed in 1262 */ 1263 vsi_list_id = cur_fltr->fwd_id.vsi_list_id; 1264 opcode = ice_aqc_opc_update_sw_rules; 1265 1266 status = ice_update_vsi_list_rule(hw, &vsi_handle, 1, 1267 vsi_list_id, false, opcode, 1268 new_fltr->lkup_type); 1269 /* update VSI list mapping info with new VSI ID */ 1270 if (!status) 1271 set_bit(vsi_handle, m_entry->vsi_list_info->vsi_map); 1272 } 1273 if (!status) 1274 m_entry->vsi_count++; 1275 return status; 1276 } 1277 1278 /** 1279 * ice_find_rule_entry - Search a rule entry 1280 * @hw: pointer to the hardware structure 1281 * @recp_id: lookup type for which the specified rule needs to be searched 1282 * @f_info: rule information 1283 * 1284 * Helper function to search for a given rule entry 1285 * Returns pointer to entry storing the rule if found 1286 */ 1287 static struct ice_fltr_mgmt_list_entry * 1288 ice_find_rule_entry(struct ice_hw *hw, u8 recp_id, struct ice_fltr_info *f_info) 1289 { 1290 struct ice_fltr_mgmt_list_entry *list_itr, *ret = NULL; 1291 struct ice_switch_info *sw = hw->switch_info; 1292 struct list_head *list_head; 1293 1294 list_head = &sw->recp_list[recp_id].filt_rules; 1295 list_for_each_entry(list_itr, list_head, list_entry) { 1296 if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data, 1297 sizeof(f_info->l_data)) && 1298 f_info->flag == list_itr->fltr_info.flag) { 1299 ret = list_itr; 1300 break; 1301 } 1302 } 1303 return ret; 1304 } 1305 1306 /** 1307 * ice_find_vsi_list_entry - Search VSI list map with VSI count 1 1308 * @hw: pointer to the hardware structure 1309 * @recp_id: lookup type for which VSI lists needs to be searched 1310 * @vsi_handle: VSI handle to be found in VSI list 1311 * @vsi_list_id: VSI list ID found containing vsi_handle 1312 * 1313 * Helper function to search a VSI list with single entry containing given VSI 1314 * handle element. This can be extended further to search VSI list with more 1315 * than 1 vsi_count. Returns pointer to VSI list entry if found. 1316 */ 1317 static struct ice_vsi_list_map_info * 1318 ice_find_vsi_list_entry(struct ice_hw *hw, u8 recp_id, u16 vsi_handle, 1319 u16 *vsi_list_id) 1320 { 1321 struct ice_vsi_list_map_info *map_info = NULL; 1322 struct ice_switch_info *sw = hw->switch_info; 1323 struct ice_fltr_mgmt_list_entry *list_itr; 1324 struct list_head *list_head; 1325 1326 list_head = &sw->recp_list[recp_id].filt_rules; 1327 list_for_each_entry(list_itr, list_head, list_entry) { 1328 if (list_itr->vsi_count == 1 && list_itr->vsi_list_info) { 1329 map_info = list_itr->vsi_list_info; 1330 if (test_bit(vsi_handle, map_info->vsi_map)) { 1331 *vsi_list_id = map_info->vsi_list_id; 1332 return map_info; 1333 } 1334 } 1335 } 1336 return NULL; 1337 } 1338 1339 /** 1340 * ice_add_rule_internal - add rule for a given lookup type 1341 * @hw: pointer to the hardware structure 1342 * @recp_id: lookup type (recipe ID) for which rule has to be added 1343 * @f_entry: structure containing MAC forwarding information 1344 * 1345 * Adds or updates the rule lists for a given recipe 1346 */ 1347 static enum ice_status 1348 ice_add_rule_internal(struct ice_hw *hw, u8 recp_id, 1349 struct ice_fltr_list_entry *f_entry) 1350 { 1351 struct ice_switch_info *sw = hw->switch_info; 1352 struct ice_fltr_info *new_fltr, *cur_fltr; 1353 struct ice_fltr_mgmt_list_entry *m_entry; 1354 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1355 enum ice_status status = 0; 1356 1357 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle)) 1358 return ICE_ERR_PARAM; 1359 f_entry->fltr_info.fwd_id.hw_vsi_id = 1360 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle); 1361 1362 rule_lock = &sw->recp_list[recp_id].filt_rule_lock; 1363 1364 mutex_lock(rule_lock); 1365 new_fltr = &f_entry->fltr_info; 1366 if (new_fltr->flag & ICE_FLTR_RX) 1367 new_fltr->src = hw->port_info->lport; 1368 else if (new_fltr->flag & ICE_FLTR_TX) 1369 new_fltr->src = f_entry->fltr_info.fwd_id.hw_vsi_id; 1370 1371 m_entry = ice_find_rule_entry(hw, recp_id, new_fltr); 1372 if (!m_entry) { 1373 mutex_unlock(rule_lock); 1374 return ice_create_pkt_fwd_rule(hw, f_entry); 1375 } 1376 1377 cur_fltr = &m_entry->fltr_info; 1378 status = ice_add_update_vsi_list(hw, m_entry, cur_fltr, new_fltr); 1379 mutex_unlock(rule_lock); 1380 1381 return status; 1382 } 1383 1384 /** 1385 * ice_remove_vsi_list_rule 1386 * @hw: pointer to the hardware structure 1387 * @vsi_list_id: VSI list ID generated as part of allocate resource 1388 * @lkup_type: switch rule filter lookup type 1389 * 1390 * The VSI list should be emptied before this function is called to remove the 1391 * VSI list. 1392 */ 1393 static enum ice_status 1394 ice_remove_vsi_list_rule(struct ice_hw *hw, u16 vsi_list_id, 1395 enum ice_sw_lkup_type lkup_type) 1396 { 1397 struct ice_aqc_sw_rules_elem *s_rule; 1398 enum ice_status status; 1399 u16 s_rule_size; 1400 1401 s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(0); 1402 s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL); 1403 if (!s_rule) 1404 return ICE_ERR_NO_MEMORY; 1405 1406 s_rule->type = cpu_to_le16(ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR); 1407 s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id); 1408 1409 /* Free the vsi_list resource that we allocated. It is assumed that the 1410 * list is empty at this point. 1411 */ 1412 status = ice_aq_alloc_free_vsi_list(hw, &vsi_list_id, lkup_type, 1413 ice_aqc_opc_free_res); 1414 1415 devm_kfree(ice_hw_to_dev(hw), s_rule); 1416 return status; 1417 } 1418 1419 /** 1420 * ice_rem_update_vsi_list 1421 * @hw: pointer to the hardware structure 1422 * @vsi_handle: VSI handle of the VSI to remove 1423 * @fm_list: filter management entry for which the VSI list management needs to 1424 * be done 1425 */ 1426 static enum ice_status 1427 ice_rem_update_vsi_list(struct ice_hw *hw, u16 vsi_handle, 1428 struct ice_fltr_mgmt_list_entry *fm_list) 1429 { 1430 enum ice_sw_lkup_type lkup_type; 1431 enum ice_status status = 0; 1432 u16 vsi_list_id; 1433 1434 if (fm_list->fltr_info.fltr_act != ICE_FWD_TO_VSI_LIST || 1435 fm_list->vsi_count == 0) 1436 return ICE_ERR_PARAM; 1437 1438 /* A rule with the VSI being removed does not exist */ 1439 if (!test_bit(vsi_handle, fm_list->vsi_list_info->vsi_map)) 1440 return ICE_ERR_DOES_NOT_EXIST; 1441 1442 lkup_type = fm_list->fltr_info.lkup_type; 1443 vsi_list_id = fm_list->fltr_info.fwd_id.vsi_list_id; 1444 status = ice_update_vsi_list_rule(hw, &vsi_handle, 1, vsi_list_id, true, 1445 ice_aqc_opc_update_sw_rules, 1446 lkup_type); 1447 if (status) 1448 return status; 1449 1450 fm_list->vsi_count--; 1451 clear_bit(vsi_handle, fm_list->vsi_list_info->vsi_map); 1452 1453 if (fm_list->vsi_count == 1 && lkup_type != ICE_SW_LKUP_VLAN) { 1454 struct ice_fltr_info tmp_fltr_info = fm_list->fltr_info; 1455 struct ice_vsi_list_map_info *vsi_list_info = 1456 fm_list->vsi_list_info; 1457 u16 rem_vsi_handle; 1458 1459 rem_vsi_handle = find_first_bit(vsi_list_info->vsi_map, 1460 ICE_MAX_VSI); 1461 if (!ice_is_vsi_valid(hw, rem_vsi_handle)) 1462 return ICE_ERR_OUT_OF_RANGE; 1463 1464 /* Make sure VSI list is empty before removing it below */ 1465 status = ice_update_vsi_list_rule(hw, &rem_vsi_handle, 1, 1466 vsi_list_id, true, 1467 ice_aqc_opc_update_sw_rules, 1468 lkup_type); 1469 if (status) 1470 return status; 1471 1472 tmp_fltr_info.fltr_act = ICE_FWD_TO_VSI; 1473 tmp_fltr_info.fwd_id.hw_vsi_id = 1474 ice_get_hw_vsi_num(hw, rem_vsi_handle); 1475 tmp_fltr_info.vsi_handle = rem_vsi_handle; 1476 status = ice_update_pkt_fwd_rule(hw, &tmp_fltr_info); 1477 if (status) { 1478 ice_debug(hw, ICE_DBG_SW, "Failed to update pkt fwd rule to FWD_TO_VSI on HW VSI %d, error %d\n", 1479 tmp_fltr_info.fwd_id.hw_vsi_id, status); 1480 return status; 1481 } 1482 1483 fm_list->fltr_info = tmp_fltr_info; 1484 } 1485 1486 if ((fm_list->vsi_count == 1 && lkup_type != ICE_SW_LKUP_VLAN) || 1487 (fm_list->vsi_count == 0 && lkup_type == ICE_SW_LKUP_VLAN)) { 1488 struct ice_vsi_list_map_info *vsi_list_info = 1489 fm_list->vsi_list_info; 1490 1491 /* Remove the VSI list since it is no longer used */ 1492 status = ice_remove_vsi_list_rule(hw, vsi_list_id, lkup_type); 1493 if (status) { 1494 ice_debug(hw, ICE_DBG_SW, "Failed to remove VSI list %d, error %d\n", 1495 vsi_list_id, status); 1496 return status; 1497 } 1498 1499 list_del(&vsi_list_info->list_entry); 1500 devm_kfree(ice_hw_to_dev(hw), vsi_list_info); 1501 fm_list->vsi_list_info = NULL; 1502 } 1503 1504 return status; 1505 } 1506 1507 /** 1508 * ice_remove_rule_internal - Remove a filter rule of a given type 1509 * @hw: pointer to the hardware structure 1510 * @recp_id: recipe ID for which the rule needs to removed 1511 * @f_entry: rule entry containing filter information 1512 */ 1513 static enum ice_status 1514 ice_remove_rule_internal(struct ice_hw *hw, u8 recp_id, 1515 struct ice_fltr_list_entry *f_entry) 1516 { 1517 struct ice_switch_info *sw = hw->switch_info; 1518 struct ice_fltr_mgmt_list_entry *list_elem; 1519 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1520 enum ice_status status = 0; 1521 bool remove_rule = false; 1522 u16 vsi_handle; 1523 1524 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle)) 1525 return ICE_ERR_PARAM; 1526 f_entry->fltr_info.fwd_id.hw_vsi_id = 1527 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle); 1528 1529 rule_lock = &sw->recp_list[recp_id].filt_rule_lock; 1530 mutex_lock(rule_lock); 1531 list_elem = ice_find_rule_entry(hw, recp_id, &f_entry->fltr_info); 1532 if (!list_elem) { 1533 status = ICE_ERR_DOES_NOT_EXIST; 1534 goto exit; 1535 } 1536 1537 if (list_elem->fltr_info.fltr_act != ICE_FWD_TO_VSI_LIST) { 1538 remove_rule = true; 1539 } else if (!list_elem->vsi_list_info) { 1540 status = ICE_ERR_DOES_NOT_EXIST; 1541 goto exit; 1542 } else if (list_elem->vsi_list_info->ref_cnt > 1) { 1543 /* a ref_cnt > 1 indicates that the vsi_list is being 1544 * shared by multiple rules. Decrement the ref_cnt and 1545 * remove this rule, but do not modify the list, as it 1546 * is in-use by other rules. 1547 */ 1548 list_elem->vsi_list_info->ref_cnt--; 1549 remove_rule = true; 1550 } else { 1551 /* a ref_cnt of 1 indicates the vsi_list is only used 1552 * by one rule. However, the original removal request is only 1553 * for a single VSI. Update the vsi_list first, and only 1554 * remove the rule if there are no further VSIs in this list. 1555 */ 1556 vsi_handle = f_entry->fltr_info.vsi_handle; 1557 status = ice_rem_update_vsi_list(hw, vsi_handle, list_elem); 1558 if (status) 1559 goto exit; 1560 /* if VSI count goes to zero after updating the VSI list */ 1561 if (list_elem->vsi_count == 0) 1562 remove_rule = true; 1563 } 1564 1565 if (remove_rule) { 1566 /* Remove the lookup rule */ 1567 struct ice_aqc_sw_rules_elem *s_rule; 1568 1569 s_rule = devm_kzalloc(ice_hw_to_dev(hw), 1570 ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1571 GFP_KERNEL); 1572 if (!s_rule) { 1573 status = ICE_ERR_NO_MEMORY; 1574 goto exit; 1575 } 1576 1577 ice_fill_sw_rule(hw, &list_elem->fltr_info, s_rule, 1578 ice_aqc_opc_remove_sw_rules); 1579 1580 status = ice_aq_sw_rules(hw, s_rule, 1581 ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1, 1582 ice_aqc_opc_remove_sw_rules, NULL); 1583 1584 /* Remove a book keeping from the list */ 1585 devm_kfree(ice_hw_to_dev(hw), s_rule); 1586 1587 if (status) 1588 goto exit; 1589 1590 list_del(&list_elem->list_entry); 1591 devm_kfree(ice_hw_to_dev(hw), list_elem); 1592 } 1593 exit: 1594 mutex_unlock(rule_lock); 1595 return status; 1596 } 1597 1598 /** 1599 * ice_add_mac - Add a MAC address based filter rule 1600 * @hw: pointer to the hardware structure 1601 * @m_list: list of MAC addresses and forwarding information 1602 * 1603 * IMPORTANT: When the ucast_shared flag is set to false and m_list has 1604 * multiple unicast addresses, the function assumes that all the 1605 * addresses are unique in a given add_mac call. It doesn't 1606 * check for duplicates in this case, removing duplicates from a given 1607 * list should be taken care of in the caller of this function. 1608 */ 1609 enum ice_status ice_add_mac(struct ice_hw *hw, struct list_head *m_list) 1610 { 1611 struct ice_aqc_sw_rules_elem *s_rule, *r_iter; 1612 struct ice_fltr_list_entry *m_list_itr; 1613 struct list_head *rule_head; 1614 u16 total_elem_left, s_rule_size; 1615 struct ice_switch_info *sw; 1616 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1617 enum ice_status status = 0; 1618 u16 num_unicast = 0; 1619 u8 elem_sent; 1620 1621 if (!m_list || !hw) 1622 return ICE_ERR_PARAM; 1623 1624 s_rule = NULL; 1625 sw = hw->switch_info; 1626 rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock; 1627 list_for_each_entry(m_list_itr, m_list, list_entry) { 1628 u8 *add = &m_list_itr->fltr_info.l_data.mac.mac_addr[0]; 1629 u16 vsi_handle; 1630 u16 hw_vsi_id; 1631 1632 m_list_itr->fltr_info.flag = ICE_FLTR_TX; 1633 vsi_handle = m_list_itr->fltr_info.vsi_handle; 1634 if (!ice_is_vsi_valid(hw, vsi_handle)) 1635 return ICE_ERR_PARAM; 1636 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 1637 m_list_itr->fltr_info.fwd_id.hw_vsi_id = hw_vsi_id; 1638 /* update the src in case it is VSI num */ 1639 if (m_list_itr->fltr_info.src_id != ICE_SRC_ID_VSI) 1640 return ICE_ERR_PARAM; 1641 m_list_itr->fltr_info.src = hw_vsi_id; 1642 if (m_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_MAC || 1643 is_zero_ether_addr(add)) 1644 return ICE_ERR_PARAM; 1645 if (is_unicast_ether_addr(add) && !hw->ucast_shared) { 1646 /* Don't overwrite the unicast address */ 1647 mutex_lock(rule_lock); 1648 if (ice_find_rule_entry(hw, ICE_SW_LKUP_MAC, 1649 &m_list_itr->fltr_info)) { 1650 mutex_unlock(rule_lock); 1651 return ICE_ERR_ALREADY_EXISTS; 1652 } 1653 mutex_unlock(rule_lock); 1654 num_unicast++; 1655 } else if (is_multicast_ether_addr(add) || 1656 (is_unicast_ether_addr(add) && hw->ucast_shared)) { 1657 m_list_itr->status = 1658 ice_add_rule_internal(hw, ICE_SW_LKUP_MAC, 1659 m_list_itr); 1660 if (m_list_itr->status) 1661 return m_list_itr->status; 1662 } 1663 } 1664 1665 mutex_lock(rule_lock); 1666 /* Exit if no suitable entries were found for adding bulk switch rule */ 1667 if (!num_unicast) { 1668 status = 0; 1669 goto ice_add_mac_exit; 1670 } 1671 1672 rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules; 1673 1674 /* Allocate switch rule buffer for the bulk update for unicast */ 1675 s_rule_size = ICE_SW_RULE_RX_TX_ETH_HDR_SIZE; 1676 s_rule = devm_kcalloc(ice_hw_to_dev(hw), num_unicast, s_rule_size, 1677 GFP_KERNEL); 1678 if (!s_rule) { 1679 status = ICE_ERR_NO_MEMORY; 1680 goto ice_add_mac_exit; 1681 } 1682 1683 r_iter = s_rule; 1684 list_for_each_entry(m_list_itr, m_list, list_entry) { 1685 struct ice_fltr_info *f_info = &m_list_itr->fltr_info; 1686 u8 *mac_addr = &f_info->l_data.mac.mac_addr[0]; 1687 1688 if (is_unicast_ether_addr(mac_addr)) { 1689 ice_fill_sw_rule(hw, &m_list_itr->fltr_info, r_iter, 1690 ice_aqc_opc_add_sw_rules); 1691 r_iter = (struct ice_aqc_sw_rules_elem *) 1692 ((u8 *)r_iter + s_rule_size); 1693 } 1694 } 1695 1696 /* Call AQ bulk switch rule update for all unicast addresses */ 1697 r_iter = s_rule; 1698 /* Call AQ switch rule in AQ_MAX chunk */ 1699 for (total_elem_left = num_unicast; total_elem_left > 0; 1700 total_elem_left -= elem_sent) { 1701 struct ice_aqc_sw_rules_elem *entry = r_iter; 1702 1703 elem_sent = min_t(u8, total_elem_left, 1704 (ICE_AQ_MAX_BUF_LEN / s_rule_size)); 1705 status = ice_aq_sw_rules(hw, entry, elem_sent * s_rule_size, 1706 elem_sent, ice_aqc_opc_add_sw_rules, 1707 NULL); 1708 if (status) 1709 goto ice_add_mac_exit; 1710 r_iter = (struct ice_aqc_sw_rules_elem *) 1711 ((u8 *)r_iter + (elem_sent * s_rule_size)); 1712 } 1713 1714 /* Fill up rule ID based on the value returned from FW */ 1715 r_iter = s_rule; 1716 list_for_each_entry(m_list_itr, m_list, list_entry) { 1717 struct ice_fltr_info *f_info = &m_list_itr->fltr_info; 1718 u8 *mac_addr = &f_info->l_data.mac.mac_addr[0]; 1719 struct ice_fltr_mgmt_list_entry *fm_entry; 1720 1721 if (is_unicast_ether_addr(mac_addr)) { 1722 f_info->fltr_rule_id = 1723 le16_to_cpu(r_iter->pdata.lkup_tx_rx.index); 1724 f_info->fltr_act = ICE_FWD_TO_VSI; 1725 /* Create an entry to track this MAC address */ 1726 fm_entry = devm_kzalloc(ice_hw_to_dev(hw), 1727 sizeof(*fm_entry), GFP_KERNEL); 1728 if (!fm_entry) { 1729 status = ICE_ERR_NO_MEMORY; 1730 goto ice_add_mac_exit; 1731 } 1732 fm_entry->fltr_info = *f_info; 1733 fm_entry->vsi_count = 1; 1734 /* The book keeping entries will get removed when 1735 * base driver calls remove filter AQ command 1736 */ 1737 1738 list_add(&fm_entry->list_entry, rule_head); 1739 r_iter = (struct ice_aqc_sw_rules_elem *) 1740 ((u8 *)r_iter + s_rule_size); 1741 } 1742 } 1743 1744 ice_add_mac_exit: 1745 mutex_unlock(rule_lock); 1746 if (s_rule) 1747 devm_kfree(ice_hw_to_dev(hw), s_rule); 1748 return status; 1749 } 1750 1751 /** 1752 * ice_add_vlan_internal - Add one VLAN based filter rule 1753 * @hw: pointer to the hardware structure 1754 * @f_entry: filter entry containing one VLAN information 1755 */ 1756 static enum ice_status 1757 ice_add_vlan_internal(struct ice_hw *hw, struct ice_fltr_list_entry *f_entry) 1758 { 1759 struct ice_switch_info *sw = hw->switch_info; 1760 struct ice_fltr_mgmt_list_entry *v_list_itr; 1761 struct ice_fltr_info *new_fltr, *cur_fltr; 1762 enum ice_sw_lkup_type lkup_type; 1763 u16 vsi_list_id = 0, vsi_handle; 1764 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1765 enum ice_status status = 0; 1766 1767 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle)) 1768 return ICE_ERR_PARAM; 1769 1770 f_entry->fltr_info.fwd_id.hw_vsi_id = 1771 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle); 1772 new_fltr = &f_entry->fltr_info; 1773 1774 /* VLAN ID should only be 12 bits */ 1775 if (new_fltr->l_data.vlan.vlan_id > ICE_MAX_VLAN_ID) 1776 return ICE_ERR_PARAM; 1777 1778 if (new_fltr->src_id != ICE_SRC_ID_VSI) 1779 return ICE_ERR_PARAM; 1780 1781 new_fltr->src = new_fltr->fwd_id.hw_vsi_id; 1782 lkup_type = new_fltr->lkup_type; 1783 vsi_handle = new_fltr->vsi_handle; 1784 rule_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock; 1785 mutex_lock(rule_lock); 1786 v_list_itr = ice_find_rule_entry(hw, ICE_SW_LKUP_VLAN, new_fltr); 1787 if (!v_list_itr) { 1788 struct ice_vsi_list_map_info *map_info = NULL; 1789 1790 if (new_fltr->fltr_act == ICE_FWD_TO_VSI) { 1791 /* All VLAN pruning rules use a VSI list. Check if 1792 * there is already a VSI list containing VSI that we 1793 * want to add. If found, use the same vsi_list_id for 1794 * this new VLAN rule or else create a new list. 1795 */ 1796 map_info = ice_find_vsi_list_entry(hw, ICE_SW_LKUP_VLAN, 1797 vsi_handle, 1798 &vsi_list_id); 1799 if (!map_info) { 1800 status = ice_create_vsi_list_rule(hw, 1801 &vsi_handle, 1802 1, 1803 &vsi_list_id, 1804 lkup_type); 1805 if (status) 1806 goto exit; 1807 } 1808 /* Convert the action to forwarding to a VSI list. */ 1809 new_fltr->fltr_act = ICE_FWD_TO_VSI_LIST; 1810 new_fltr->fwd_id.vsi_list_id = vsi_list_id; 1811 } 1812 1813 status = ice_create_pkt_fwd_rule(hw, f_entry); 1814 if (!status) { 1815 v_list_itr = ice_find_rule_entry(hw, ICE_SW_LKUP_VLAN, 1816 new_fltr); 1817 if (!v_list_itr) { 1818 status = ICE_ERR_DOES_NOT_EXIST; 1819 goto exit; 1820 } 1821 /* reuse VSI list for new rule and increment ref_cnt */ 1822 if (map_info) { 1823 v_list_itr->vsi_list_info = map_info; 1824 map_info->ref_cnt++; 1825 } else { 1826 v_list_itr->vsi_list_info = 1827 ice_create_vsi_list_map(hw, &vsi_handle, 1828 1, vsi_list_id); 1829 } 1830 } 1831 } else if (v_list_itr->vsi_list_info->ref_cnt == 1) { 1832 /* Update existing VSI list to add new VSI ID only if it used 1833 * by one VLAN rule. 1834 */ 1835 cur_fltr = &v_list_itr->fltr_info; 1836 status = ice_add_update_vsi_list(hw, v_list_itr, cur_fltr, 1837 new_fltr); 1838 } else { 1839 /* If VLAN rule exists and VSI list being used by this rule is 1840 * referenced by more than 1 VLAN rule. Then create a new VSI 1841 * list appending previous VSI with new VSI and update existing 1842 * VLAN rule to point to new VSI list ID 1843 */ 1844 struct ice_fltr_info tmp_fltr; 1845 u16 vsi_handle_arr[2]; 1846 u16 cur_handle; 1847 1848 /* Current implementation only supports reusing VSI list with 1849 * one VSI count. We should never hit below condition 1850 */ 1851 if (v_list_itr->vsi_count > 1 && 1852 v_list_itr->vsi_list_info->ref_cnt > 1) { 1853 ice_debug(hw, ICE_DBG_SW, "Invalid configuration: Optimization to reuse VSI list with more than one VSI is not being done yet\n"); 1854 status = ICE_ERR_CFG; 1855 goto exit; 1856 } 1857 1858 cur_handle = 1859 find_first_bit(v_list_itr->vsi_list_info->vsi_map, 1860 ICE_MAX_VSI); 1861 1862 /* A rule already exists with the new VSI being added */ 1863 if (cur_handle == vsi_handle) { 1864 status = ICE_ERR_ALREADY_EXISTS; 1865 goto exit; 1866 } 1867 1868 vsi_handle_arr[0] = cur_handle; 1869 vsi_handle_arr[1] = vsi_handle; 1870 status = ice_create_vsi_list_rule(hw, &vsi_handle_arr[0], 2, 1871 &vsi_list_id, lkup_type); 1872 if (status) 1873 goto exit; 1874 1875 tmp_fltr = v_list_itr->fltr_info; 1876 tmp_fltr.fltr_rule_id = v_list_itr->fltr_info.fltr_rule_id; 1877 tmp_fltr.fwd_id.vsi_list_id = vsi_list_id; 1878 tmp_fltr.fltr_act = ICE_FWD_TO_VSI_LIST; 1879 /* Update the previous switch rule to a new VSI list which 1880 * includes current VSI that is requested 1881 */ 1882 status = ice_update_pkt_fwd_rule(hw, &tmp_fltr); 1883 if (status) 1884 goto exit; 1885 1886 /* before overriding VSI list map info. decrement ref_cnt of 1887 * previous VSI list 1888 */ 1889 v_list_itr->vsi_list_info->ref_cnt--; 1890 1891 /* now update to newly created list */ 1892 v_list_itr->fltr_info.fwd_id.vsi_list_id = vsi_list_id; 1893 v_list_itr->vsi_list_info = 1894 ice_create_vsi_list_map(hw, &vsi_handle_arr[0], 2, 1895 vsi_list_id); 1896 v_list_itr->vsi_count++; 1897 } 1898 1899 exit: 1900 mutex_unlock(rule_lock); 1901 return status; 1902 } 1903 1904 /** 1905 * ice_add_vlan - Add VLAN based filter rule 1906 * @hw: pointer to the hardware structure 1907 * @v_list: list of VLAN entries and forwarding information 1908 */ 1909 enum ice_status ice_add_vlan(struct ice_hw *hw, struct list_head *v_list) 1910 { 1911 struct ice_fltr_list_entry *v_list_itr; 1912 1913 if (!v_list || !hw) 1914 return ICE_ERR_PARAM; 1915 1916 list_for_each_entry(v_list_itr, v_list, list_entry) { 1917 if (v_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_VLAN) 1918 return ICE_ERR_PARAM; 1919 v_list_itr->fltr_info.flag = ICE_FLTR_TX; 1920 v_list_itr->status = ice_add_vlan_internal(hw, v_list_itr); 1921 if (v_list_itr->status) 1922 return v_list_itr->status; 1923 } 1924 return 0; 1925 } 1926 1927 /** 1928 * ice_add_eth_mac - Add ethertype and MAC based filter rule 1929 * @hw: pointer to the hardware structure 1930 * @em_list: list of ether type MAC filter, MAC is optional 1931 * 1932 * This function requires the caller to populate the entries in 1933 * the filter list with the necessary fields (including flags to 1934 * indicate Tx or Rx rules). 1935 */ 1936 enum ice_status 1937 ice_add_eth_mac(struct ice_hw *hw, struct list_head *em_list) 1938 { 1939 struct ice_fltr_list_entry *em_list_itr; 1940 1941 if (!em_list || !hw) 1942 return ICE_ERR_PARAM; 1943 1944 list_for_each_entry(em_list_itr, em_list, list_entry) { 1945 enum ice_sw_lkup_type l_type = 1946 em_list_itr->fltr_info.lkup_type; 1947 1948 if (l_type != ICE_SW_LKUP_ETHERTYPE_MAC && 1949 l_type != ICE_SW_LKUP_ETHERTYPE) 1950 return ICE_ERR_PARAM; 1951 1952 em_list_itr->status = ice_add_rule_internal(hw, l_type, 1953 em_list_itr); 1954 if (em_list_itr->status) 1955 return em_list_itr->status; 1956 } 1957 return 0; 1958 } 1959 1960 /** 1961 * ice_remove_eth_mac - Remove an ethertype (or MAC) based filter rule 1962 * @hw: pointer to the hardware structure 1963 * @em_list: list of ethertype or ethertype MAC entries 1964 */ 1965 enum ice_status 1966 ice_remove_eth_mac(struct ice_hw *hw, struct list_head *em_list) 1967 { 1968 struct ice_fltr_list_entry *em_list_itr, *tmp; 1969 1970 if (!em_list || !hw) 1971 return ICE_ERR_PARAM; 1972 1973 list_for_each_entry_safe(em_list_itr, tmp, em_list, list_entry) { 1974 enum ice_sw_lkup_type l_type = 1975 em_list_itr->fltr_info.lkup_type; 1976 1977 if (l_type != ICE_SW_LKUP_ETHERTYPE_MAC && 1978 l_type != ICE_SW_LKUP_ETHERTYPE) 1979 return ICE_ERR_PARAM; 1980 1981 em_list_itr->status = ice_remove_rule_internal(hw, l_type, 1982 em_list_itr); 1983 if (em_list_itr->status) 1984 return em_list_itr->status; 1985 } 1986 return 0; 1987 } 1988 1989 /** 1990 * ice_rem_sw_rule_info 1991 * @hw: pointer to the hardware structure 1992 * @rule_head: pointer to the switch list structure that we want to delete 1993 */ 1994 static void 1995 ice_rem_sw_rule_info(struct ice_hw *hw, struct list_head *rule_head) 1996 { 1997 if (!list_empty(rule_head)) { 1998 struct ice_fltr_mgmt_list_entry *entry; 1999 struct ice_fltr_mgmt_list_entry *tmp; 2000 2001 list_for_each_entry_safe(entry, tmp, rule_head, list_entry) { 2002 list_del(&entry->list_entry); 2003 devm_kfree(ice_hw_to_dev(hw), entry); 2004 } 2005 } 2006 } 2007 2008 /** 2009 * ice_cfg_dflt_vsi - change state of VSI to set/clear default 2010 * @hw: pointer to the hardware structure 2011 * @vsi_handle: VSI handle to set as default 2012 * @set: true to add the above mentioned switch rule, false to remove it 2013 * @direction: ICE_FLTR_RX or ICE_FLTR_TX 2014 * 2015 * add filter rule to set/unset given VSI as default VSI for the switch 2016 * (represented by swid) 2017 */ 2018 enum ice_status 2019 ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_handle, bool set, u8 direction) 2020 { 2021 struct ice_aqc_sw_rules_elem *s_rule; 2022 struct ice_fltr_info f_info; 2023 enum ice_adminq_opc opcode; 2024 enum ice_status status; 2025 u16 s_rule_size; 2026 u16 hw_vsi_id; 2027 2028 if (!ice_is_vsi_valid(hw, vsi_handle)) 2029 return ICE_ERR_PARAM; 2030 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 2031 2032 s_rule_size = set ? ICE_SW_RULE_RX_TX_ETH_HDR_SIZE : 2033 ICE_SW_RULE_RX_TX_NO_HDR_SIZE; 2034 2035 s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL); 2036 if (!s_rule) 2037 return ICE_ERR_NO_MEMORY; 2038 2039 memset(&f_info, 0, sizeof(f_info)); 2040 2041 f_info.lkup_type = ICE_SW_LKUP_DFLT; 2042 f_info.flag = direction; 2043 f_info.fltr_act = ICE_FWD_TO_VSI; 2044 f_info.fwd_id.hw_vsi_id = hw_vsi_id; 2045 2046 if (f_info.flag & ICE_FLTR_RX) { 2047 f_info.src = hw->port_info->lport; 2048 f_info.src_id = ICE_SRC_ID_LPORT; 2049 if (!set) 2050 f_info.fltr_rule_id = 2051 hw->port_info->dflt_rx_vsi_rule_id; 2052 } else if (f_info.flag & ICE_FLTR_TX) { 2053 f_info.src_id = ICE_SRC_ID_VSI; 2054 f_info.src = hw_vsi_id; 2055 if (!set) 2056 f_info.fltr_rule_id = 2057 hw->port_info->dflt_tx_vsi_rule_id; 2058 } 2059 2060 if (set) 2061 opcode = ice_aqc_opc_add_sw_rules; 2062 else 2063 opcode = ice_aqc_opc_remove_sw_rules; 2064 2065 ice_fill_sw_rule(hw, &f_info, s_rule, opcode); 2066 2067 status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opcode, NULL); 2068 if (status || !(f_info.flag & ICE_FLTR_TX_RX)) 2069 goto out; 2070 if (set) { 2071 u16 index = le16_to_cpu(s_rule->pdata.lkup_tx_rx.index); 2072 2073 if (f_info.flag & ICE_FLTR_TX) { 2074 hw->port_info->dflt_tx_vsi_num = hw_vsi_id; 2075 hw->port_info->dflt_tx_vsi_rule_id = index; 2076 } else if (f_info.flag & ICE_FLTR_RX) { 2077 hw->port_info->dflt_rx_vsi_num = hw_vsi_id; 2078 hw->port_info->dflt_rx_vsi_rule_id = index; 2079 } 2080 } else { 2081 if (f_info.flag & ICE_FLTR_TX) { 2082 hw->port_info->dflt_tx_vsi_num = ICE_DFLT_VSI_INVAL; 2083 hw->port_info->dflt_tx_vsi_rule_id = ICE_INVAL_ACT; 2084 } else if (f_info.flag & ICE_FLTR_RX) { 2085 hw->port_info->dflt_rx_vsi_num = ICE_DFLT_VSI_INVAL; 2086 hw->port_info->dflt_rx_vsi_rule_id = ICE_INVAL_ACT; 2087 } 2088 } 2089 2090 out: 2091 devm_kfree(ice_hw_to_dev(hw), s_rule); 2092 return status; 2093 } 2094 2095 /** 2096 * ice_find_ucast_rule_entry - Search for a unicast MAC filter rule entry 2097 * @hw: pointer to the hardware structure 2098 * @recp_id: lookup type for which the specified rule needs to be searched 2099 * @f_info: rule information 2100 * 2101 * Helper function to search for a unicast rule entry - this is to be used 2102 * to remove unicast MAC filter that is not shared with other VSIs on the 2103 * PF switch. 2104 * 2105 * Returns pointer to entry storing the rule if found 2106 */ 2107 static struct ice_fltr_mgmt_list_entry * 2108 ice_find_ucast_rule_entry(struct ice_hw *hw, u8 recp_id, 2109 struct ice_fltr_info *f_info) 2110 { 2111 struct ice_switch_info *sw = hw->switch_info; 2112 struct ice_fltr_mgmt_list_entry *list_itr; 2113 struct list_head *list_head; 2114 2115 list_head = &sw->recp_list[recp_id].filt_rules; 2116 list_for_each_entry(list_itr, list_head, list_entry) { 2117 if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data, 2118 sizeof(f_info->l_data)) && 2119 f_info->fwd_id.hw_vsi_id == 2120 list_itr->fltr_info.fwd_id.hw_vsi_id && 2121 f_info->flag == list_itr->fltr_info.flag) 2122 return list_itr; 2123 } 2124 return NULL; 2125 } 2126 2127 /** 2128 * ice_remove_mac - remove a MAC address based filter rule 2129 * @hw: pointer to the hardware structure 2130 * @m_list: list of MAC addresses and forwarding information 2131 * 2132 * This function removes either a MAC filter rule or a specific VSI from a 2133 * VSI list for a multicast MAC address. 2134 * 2135 * Returns ICE_ERR_DOES_NOT_EXIST if a given entry was not added by 2136 * ice_add_mac. Caller should be aware that this call will only work if all 2137 * the entries passed into m_list were added previously. It will not attempt to 2138 * do a partial remove of entries that were found. 2139 */ 2140 enum ice_status ice_remove_mac(struct ice_hw *hw, struct list_head *m_list) 2141 { 2142 struct ice_fltr_list_entry *list_itr, *tmp; 2143 struct mutex *rule_lock; /* Lock to protect filter rule list */ 2144 2145 if (!m_list) 2146 return ICE_ERR_PARAM; 2147 2148 rule_lock = &hw->switch_info->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock; 2149 list_for_each_entry_safe(list_itr, tmp, m_list, list_entry) { 2150 enum ice_sw_lkup_type l_type = list_itr->fltr_info.lkup_type; 2151 u8 *add = &list_itr->fltr_info.l_data.mac.mac_addr[0]; 2152 u16 vsi_handle; 2153 2154 if (l_type != ICE_SW_LKUP_MAC) 2155 return ICE_ERR_PARAM; 2156 2157 vsi_handle = list_itr->fltr_info.vsi_handle; 2158 if (!ice_is_vsi_valid(hw, vsi_handle)) 2159 return ICE_ERR_PARAM; 2160 2161 list_itr->fltr_info.fwd_id.hw_vsi_id = 2162 ice_get_hw_vsi_num(hw, vsi_handle); 2163 if (is_unicast_ether_addr(add) && !hw->ucast_shared) { 2164 /* Don't remove the unicast address that belongs to 2165 * another VSI on the switch, since it is not being 2166 * shared... 2167 */ 2168 mutex_lock(rule_lock); 2169 if (!ice_find_ucast_rule_entry(hw, ICE_SW_LKUP_MAC, 2170 &list_itr->fltr_info)) { 2171 mutex_unlock(rule_lock); 2172 return ICE_ERR_DOES_NOT_EXIST; 2173 } 2174 mutex_unlock(rule_lock); 2175 } 2176 list_itr->status = ice_remove_rule_internal(hw, 2177 ICE_SW_LKUP_MAC, 2178 list_itr); 2179 if (list_itr->status) 2180 return list_itr->status; 2181 } 2182 return 0; 2183 } 2184 2185 /** 2186 * ice_remove_vlan - Remove VLAN based filter rule 2187 * @hw: pointer to the hardware structure 2188 * @v_list: list of VLAN entries and forwarding information 2189 */ 2190 enum ice_status 2191 ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list) 2192 { 2193 struct ice_fltr_list_entry *v_list_itr, *tmp; 2194 2195 if (!v_list || !hw) 2196 return ICE_ERR_PARAM; 2197 2198 list_for_each_entry_safe(v_list_itr, tmp, v_list, list_entry) { 2199 enum ice_sw_lkup_type l_type = v_list_itr->fltr_info.lkup_type; 2200 2201 if (l_type != ICE_SW_LKUP_VLAN) 2202 return ICE_ERR_PARAM; 2203 v_list_itr->status = ice_remove_rule_internal(hw, 2204 ICE_SW_LKUP_VLAN, 2205 v_list_itr); 2206 if (v_list_itr->status) 2207 return v_list_itr->status; 2208 } 2209 return 0; 2210 } 2211 2212 /** 2213 * ice_vsi_uses_fltr - Determine if given VSI uses specified filter 2214 * @fm_entry: filter entry to inspect 2215 * @vsi_handle: VSI handle to compare with filter info 2216 */ 2217 static bool 2218 ice_vsi_uses_fltr(struct ice_fltr_mgmt_list_entry *fm_entry, u16 vsi_handle) 2219 { 2220 return ((fm_entry->fltr_info.fltr_act == ICE_FWD_TO_VSI && 2221 fm_entry->fltr_info.vsi_handle == vsi_handle) || 2222 (fm_entry->fltr_info.fltr_act == ICE_FWD_TO_VSI_LIST && 2223 (test_bit(vsi_handle, fm_entry->vsi_list_info->vsi_map)))); 2224 } 2225 2226 /** 2227 * ice_add_entry_to_vsi_fltr_list - Add copy of fltr_list_entry to remove list 2228 * @hw: pointer to the hardware structure 2229 * @vsi_handle: VSI handle to remove filters from 2230 * @vsi_list_head: pointer to the list to add entry to 2231 * @fi: pointer to fltr_info of filter entry to copy & add 2232 * 2233 * Helper function, used when creating a list of filters to remove from 2234 * a specific VSI. The entry added to vsi_list_head is a COPY of the 2235 * original filter entry, with the exception of fltr_info.fltr_act and 2236 * fltr_info.fwd_id fields. These are set such that later logic can 2237 * extract which VSI to remove the fltr from, and pass on that information. 2238 */ 2239 static enum ice_status 2240 ice_add_entry_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_handle, 2241 struct list_head *vsi_list_head, 2242 struct ice_fltr_info *fi) 2243 { 2244 struct ice_fltr_list_entry *tmp; 2245 2246 /* this memory is freed up in the caller function 2247 * once filters for this VSI are removed 2248 */ 2249 tmp = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*tmp), GFP_KERNEL); 2250 if (!tmp) 2251 return ICE_ERR_NO_MEMORY; 2252 2253 tmp->fltr_info = *fi; 2254 2255 /* Overwrite these fields to indicate which VSI to remove filter from, 2256 * so find and remove logic can extract the information from the 2257 * list entries. Note that original entries will still have proper 2258 * values. 2259 */ 2260 tmp->fltr_info.fltr_act = ICE_FWD_TO_VSI; 2261 tmp->fltr_info.vsi_handle = vsi_handle; 2262 tmp->fltr_info.fwd_id.hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 2263 2264 list_add(&tmp->list_entry, vsi_list_head); 2265 2266 return 0; 2267 } 2268 2269 /** 2270 * ice_add_to_vsi_fltr_list - Add VSI filters to the list 2271 * @hw: pointer to the hardware structure 2272 * @vsi_handle: VSI handle to remove filters from 2273 * @lkup_list_head: pointer to the list that has certain lookup type filters 2274 * @vsi_list_head: pointer to the list pertaining to VSI with vsi_handle 2275 * 2276 * Locates all filters in lkup_list_head that are used by the given VSI, 2277 * and adds COPIES of those entries to vsi_list_head (intended to be used 2278 * to remove the listed filters). 2279 * Note that this means all entries in vsi_list_head must be explicitly 2280 * deallocated by the caller when done with list. 2281 */ 2282 static enum ice_status 2283 ice_add_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_handle, 2284 struct list_head *lkup_list_head, 2285 struct list_head *vsi_list_head) 2286 { 2287 struct ice_fltr_mgmt_list_entry *fm_entry; 2288 enum ice_status status = 0; 2289 2290 /* check to make sure VSI ID is valid and within boundary */ 2291 if (!ice_is_vsi_valid(hw, vsi_handle)) 2292 return ICE_ERR_PARAM; 2293 2294 list_for_each_entry(fm_entry, lkup_list_head, list_entry) { 2295 struct ice_fltr_info *fi; 2296 2297 fi = &fm_entry->fltr_info; 2298 if (!fi || !ice_vsi_uses_fltr(fm_entry, vsi_handle)) 2299 continue; 2300 2301 status = ice_add_entry_to_vsi_fltr_list(hw, vsi_handle, 2302 vsi_list_head, fi); 2303 if (status) 2304 return status; 2305 } 2306 return status; 2307 } 2308 2309 /** 2310 * ice_determine_promisc_mask 2311 * @fi: filter info to parse 2312 * 2313 * Helper function to determine which ICE_PROMISC_ mask corresponds 2314 * to given filter into. 2315 */ 2316 static u8 ice_determine_promisc_mask(struct ice_fltr_info *fi) 2317 { 2318 u16 vid = fi->l_data.mac_vlan.vlan_id; 2319 u8 *macaddr = fi->l_data.mac.mac_addr; 2320 bool is_tx_fltr = false; 2321 u8 promisc_mask = 0; 2322 2323 if (fi->flag == ICE_FLTR_TX) 2324 is_tx_fltr = true; 2325 2326 if (is_broadcast_ether_addr(macaddr)) 2327 promisc_mask |= is_tx_fltr ? 2328 ICE_PROMISC_BCAST_TX : ICE_PROMISC_BCAST_RX; 2329 else if (is_multicast_ether_addr(macaddr)) 2330 promisc_mask |= is_tx_fltr ? 2331 ICE_PROMISC_MCAST_TX : ICE_PROMISC_MCAST_RX; 2332 else if (is_unicast_ether_addr(macaddr)) 2333 promisc_mask |= is_tx_fltr ? 2334 ICE_PROMISC_UCAST_TX : ICE_PROMISC_UCAST_RX; 2335 if (vid) 2336 promisc_mask |= is_tx_fltr ? 2337 ICE_PROMISC_VLAN_TX : ICE_PROMISC_VLAN_RX; 2338 2339 return promisc_mask; 2340 } 2341 2342 /** 2343 * ice_remove_promisc - Remove promisc based filter rules 2344 * @hw: pointer to the hardware structure 2345 * @recp_id: recipe ID for which the rule needs to removed 2346 * @v_list: list of promisc entries 2347 */ 2348 static enum ice_status 2349 ice_remove_promisc(struct ice_hw *hw, u8 recp_id, 2350 struct list_head *v_list) 2351 { 2352 struct ice_fltr_list_entry *v_list_itr, *tmp; 2353 2354 list_for_each_entry_safe(v_list_itr, tmp, v_list, list_entry) { 2355 v_list_itr->status = 2356 ice_remove_rule_internal(hw, recp_id, v_list_itr); 2357 if (v_list_itr->status) 2358 return v_list_itr->status; 2359 } 2360 return 0; 2361 } 2362 2363 /** 2364 * ice_clear_vsi_promisc - clear specified promiscuous mode(s) for given VSI 2365 * @hw: pointer to the hardware structure 2366 * @vsi_handle: VSI handle to clear mode 2367 * @promisc_mask: mask of promiscuous config bits to clear 2368 * @vid: VLAN ID to clear VLAN promiscuous 2369 */ 2370 enum ice_status 2371 ice_clear_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask, 2372 u16 vid) 2373 { 2374 struct ice_switch_info *sw = hw->switch_info; 2375 struct ice_fltr_list_entry *fm_entry, *tmp; 2376 struct list_head remove_list_head; 2377 struct ice_fltr_mgmt_list_entry *itr; 2378 struct list_head *rule_head; 2379 struct mutex *rule_lock; /* Lock to protect filter rule list */ 2380 enum ice_status status = 0; 2381 u8 recipe_id; 2382 2383 if (!ice_is_vsi_valid(hw, vsi_handle)) 2384 return ICE_ERR_PARAM; 2385 2386 if (promisc_mask & (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX)) 2387 recipe_id = ICE_SW_LKUP_PROMISC_VLAN; 2388 else 2389 recipe_id = ICE_SW_LKUP_PROMISC; 2390 2391 rule_head = &sw->recp_list[recipe_id].filt_rules; 2392 rule_lock = &sw->recp_list[recipe_id].filt_rule_lock; 2393 2394 INIT_LIST_HEAD(&remove_list_head); 2395 2396 mutex_lock(rule_lock); 2397 list_for_each_entry(itr, rule_head, list_entry) { 2398 struct ice_fltr_info *fltr_info; 2399 u8 fltr_promisc_mask = 0; 2400 2401 if (!ice_vsi_uses_fltr(itr, vsi_handle)) 2402 continue; 2403 fltr_info = &itr->fltr_info; 2404 2405 if (recipe_id == ICE_SW_LKUP_PROMISC_VLAN && 2406 vid != fltr_info->l_data.mac_vlan.vlan_id) 2407 continue; 2408 2409 fltr_promisc_mask |= ice_determine_promisc_mask(fltr_info); 2410 2411 /* Skip if filter is not completely specified by given mask */ 2412 if (fltr_promisc_mask & ~promisc_mask) 2413 continue; 2414 2415 status = ice_add_entry_to_vsi_fltr_list(hw, vsi_handle, 2416 &remove_list_head, 2417 fltr_info); 2418 if (status) { 2419 mutex_unlock(rule_lock); 2420 goto free_fltr_list; 2421 } 2422 } 2423 mutex_unlock(rule_lock); 2424 2425 status = ice_remove_promisc(hw, recipe_id, &remove_list_head); 2426 2427 free_fltr_list: 2428 list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) { 2429 list_del(&fm_entry->list_entry); 2430 devm_kfree(ice_hw_to_dev(hw), fm_entry); 2431 } 2432 2433 return status; 2434 } 2435 2436 /** 2437 * ice_set_vsi_promisc - set given VSI to given promiscuous mode(s) 2438 * @hw: pointer to the hardware structure 2439 * @vsi_handle: VSI handle to configure 2440 * @promisc_mask: mask of promiscuous config bits 2441 * @vid: VLAN ID to set VLAN promiscuous 2442 */ 2443 enum ice_status 2444 ice_set_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask, u16 vid) 2445 { 2446 enum { UCAST_FLTR = 1, MCAST_FLTR, BCAST_FLTR }; 2447 struct ice_fltr_list_entry f_list_entry; 2448 struct ice_fltr_info new_fltr; 2449 enum ice_status status = 0; 2450 bool is_tx_fltr; 2451 u16 hw_vsi_id; 2452 int pkt_type; 2453 u8 recipe_id; 2454 2455 if (!ice_is_vsi_valid(hw, vsi_handle)) 2456 return ICE_ERR_PARAM; 2457 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 2458 2459 memset(&new_fltr, 0, sizeof(new_fltr)); 2460 2461 if (promisc_mask & (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX)) { 2462 new_fltr.lkup_type = ICE_SW_LKUP_PROMISC_VLAN; 2463 new_fltr.l_data.mac_vlan.vlan_id = vid; 2464 recipe_id = ICE_SW_LKUP_PROMISC_VLAN; 2465 } else { 2466 new_fltr.lkup_type = ICE_SW_LKUP_PROMISC; 2467 recipe_id = ICE_SW_LKUP_PROMISC; 2468 } 2469 2470 /* Separate filters must be set for each direction/packet type 2471 * combination, so we will loop over the mask value, store the 2472 * individual type, and clear it out in the input mask as it 2473 * is found. 2474 */ 2475 while (promisc_mask) { 2476 u8 *mac_addr; 2477 2478 pkt_type = 0; 2479 is_tx_fltr = false; 2480 2481 if (promisc_mask & ICE_PROMISC_UCAST_RX) { 2482 promisc_mask &= ~ICE_PROMISC_UCAST_RX; 2483 pkt_type = UCAST_FLTR; 2484 } else if (promisc_mask & ICE_PROMISC_UCAST_TX) { 2485 promisc_mask &= ~ICE_PROMISC_UCAST_TX; 2486 pkt_type = UCAST_FLTR; 2487 is_tx_fltr = true; 2488 } else if (promisc_mask & ICE_PROMISC_MCAST_RX) { 2489 promisc_mask &= ~ICE_PROMISC_MCAST_RX; 2490 pkt_type = MCAST_FLTR; 2491 } else if (promisc_mask & ICE_PROMISC_MCAST_TX) { 2492 promisc_mask &= ~ICE_PROMISC_MCAST_TX; 2493 pkt_type = MCAST_FLTR; 2494 is_tx_fltr = true; 2495 } else if (promisc_mask & ICE_PROMISC_BCAST_RX) { 2496 promisc_mask &= ~ICE_PROMISC_BCAST_RX; 2497 pkt_type = BCAST_FLTR; 2498 } else if (promisc_mask & ICE_PROMISC_BCAST_TX) { 2499 promisc_mask &= ~ICE_PROMISC_BCAST_TX; 2500 pkt_type = BCAST_FLTR; 2501 is_tx_fltr = true; 2502 } 2503 2504 /* Check for VLAN promiscuous flag */ 2505 if (promisc_mask & ICE_PROMISC_VLAN_RX) { 2506 promisc_mask &= ~ICE_PROMISC_VLAN_RX; 2507 } else if (promisc_mask & ICE_PROMISC_VLAN_TX) { 2508 promisc_mask &= ~ICE_PROMISC_VLAN_TX; 2509 is_tx_fltr = true; 2510 } 2511 2512 /* Set filter DA based on packet type */ 2513 mac_addr = new_fltr.l_data.mac.mac_addr; 2514 if (pkt_type == BCAST_FLTR) { 2515 eth_broadcast_addr(mac_addr); 2516 } else if (pkt_type == MCAST_FLTR || 2517 pkt_type == UCAST_FLTR) { 2518 /* Use the dummy ether header DA */ 2519 ether_addr_copy(mac_addr, dummy_eth_header); 2520 if (pkt_type == MCAST_FLTR) 2521 mac_addr[0] |= 0x1; /* Set multicast bit */ 2522 } 2523 2524 /* Need to reset this to zero for all iterations */ 2525 new_fltr.flag = 0; 2526 if (is_tx_fltr) { 2527 new_fltr.flag |= ICE_FLTR_TX; 2528 new_fltr.src = hw_vsi_id; 2529 } else { 2530 new_fltr.flag |= ICE_FLTR_RX; 2531 new_fltr.src = hw->port_info->lport; 2532 } 2533 2534 new_fltr.fltr_act = ICE_FWD_TO_VSI; 2535 new_fltr.vsi_handle = vsi_handle; 2536 new_fltr.fwd_id.hw_vsi_id = hw_vsi_id; 2537 f_list_entry.fltr_info = new_fltr; 2538 2539 status = ice_add_rule_internal(hw, recipe_id, &f_list_entry); 2540 if (status) 2541 goto set_promisc_exit; 2542 } 2543 2544 set_promisc_exit: 2545 return status; 2546 } 2547 2548 /** 2549 * ice_set_vlan_vsi_promisc 2550 * @hw: pointer to the hardware structure 2551 * @vsi_handle: VSI handle to configure 2552 * @promisc_mask: mask of promiscuous config bits 2553 * @rm_vlan_promisc: Clear VLANs VSI promisc mode 2554 * 2555 * Configure VSI with all associated VLANs to given promiscuous mode(s) 2556 */ 2557 enum ice_status 2558 ice_set_vlan_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask, 2559 bool rm_vlan_promisc) 2560 { 2561 struct ice_switch_info *sw = hw->switch_info; 2562 struct ice_fltr_list_entry *list_itr, *tmp; 2563 struct list_head vsi_list_head; 2564 struct list_head *vlan_head; 2565 struct mutex *vlan_lock; /* Lock to protect filter rule list */ 2566 enum ice_status status; 2567 u16 vlan_id; 2568 2569 INIT_LIST_HEAD(&vsi_list_head); 2570 vlan_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock; 2571 vlan_head = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rules; 2572 mutex_lock(vlan_lock); 2573 status = ice_add_to_vsi_fltr_list(hw, vsi_handle, vlan_head, 2574 &vsi_list_head); 2575 mutex_unlock(vlan_lock); 2576 if (status) 2577 goto free_fltr_list; 2578 2579 list_for_each_entry(list_itr, &vsi_list_head, list_entry) { 2580 vlan_id = list_itr->fltr_info.l_data.vlan.vlan_id; 2581 if (rm_vlan_promisc) 2582 status = ice_clear_vsi_promisc(hw, vsi_handle, 2583 promisc_mask, vlan_id); 2584 else 2585 status = ice_set_vsi_promisc(hw, vsi_handle, 2586 promisc_mask, vlan_id); 2587 if (status) 2588 break; 2589 } 2590 2591 free_fltr_list: 2592 list_for_each_entry_safe(list_itr, tmp, &vsi_list_head, list_entry) { 2593 list_del(&list_itr->list_entry); 2594 devm_kfree(ice_hw_to_dev(hw), list_itr); 2595 } 2596 return status; 2597 } 2598 2599 /** 2600 * ice_remove_vsi_lkup_fltr - Remove lookup type filters for a VSI 2601 * @hw: pointer to the hardware structure 2602 * @vsi_handle: VSI handle to remove filters from 2603 * @lkup: switch rule filter lookup type 2604 */ 2605 static void 2606 ice_remove_vsi_lkup_fltr(struct ice_hw *hw, u16 vsi_handle, 2607 enum ice_sw_lkup_type lkup) 2608 { 2609 struct ice_switch_info *sw = hw->switch_info; 2610 struct ice_fltr_list_entry *fm_entry; 2611 struct list_head remove_list_head; 2612 struct list_head *rule_head; 2613 struct ice_fltr_list_entry *tmp; 2614 struct mutex *rule_lock; /* Lock to protect filter rule list */ 2615 enum ice_status status; 2616 2617 INIT_LIST_HEAD(&remove_list_head); 2618 rule_lock = &sw->recp_list[lkup].filt_rule_lock; 2619 rule_head = &sw->recp_list[lkup].filt_rules; 2620 mutex_lock(rule_lock); 2621 status = ice_add_to_vsi_fltr_list(hw, vsi_handle, rule_head, 2622 &remove_list_head); 2623 mutex_unlock(rule_lock); 2624 if (status) 2625 return; 2626 2627 switch (lkup) { 2628 case ICE_SW_LKUP_MAC: 2629 ice_remove_mac(hw, &remove_list_head); 2630 break; 2631 case ICE_SW_LKUP_VLAN: 2632 ice_remove_vlan(hw, &remove_list_head); 2633 break; 2634 case ICE_SW_LKUP_PROMISC: 2635 case ICE_SW_LKUP_PROMISC_VLAN: 2636 ice_remove_promisc(hw, lkup, &remove_list_head); 2637 break; 2638 case ICE_SW_LKUP_MAC_VLAN: 2639 case ICE_SW_LKUP_ETHERTYPE: 2640 case ICE_SW_LKUP_ETHERTYPE_MAC: 2641 case ICE_SW_LKUP_DFLT: 2642 case ICE_SW_LKUP_LAST: 2643 default: 2644 ice_debug(hw, ICE_DBG_SW, "Unsupported lookup type %d\n", lkup); 2645 break; 2646 } 2647 2648 list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) { 2649 list_del(&fm_entry->list_entry); 2650 devm_kfree(ice_hw_to_dev(hw), fm_entry); 2651 } 2652 } 2653 2654 /** 2655 * ice_remove_vsi_fltr - Remove all filters for a VSI 2656 * @hw: pointer to the hardware structure 2657 * @vsi_handle: VSI handle to remove filters from 2658 */ 2659 void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle) 2660 { 2661 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_MAC); 2662 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_MAC_VLAN); 2663 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC); 2664 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_VLAN); 2665 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_DFLT); 2666 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_ETHERTYPE); 2667 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_ETHERTYPE_MAC); 2668 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC_VLAN); 2669 } 2670 2671 /** 2672 * ice_alloc_res_cntr - allocating resource counter 2673 * @hw: pointer to the hardware structure 2674 * @type: type of resource 2675 * @alloc_shared: if set it is shared else dedicated 2676 * @num_items: number of entries requested for FD resource type 2677 * @counter_id: counter index returned by AQ call 2678 */ 2679 enum ice_status 2680 ice_alloc_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items, 2681 u16 *counter_id) 2682 { 2683 struct ice_aqc_alloc_free_res_elem *buf; 2684 enum ice_status status; 2685 u16 buf_len; 2686 2687 /* Allocate resource */ 2688 buf_len = struct_size(buf, elem, 1); 2689 buf = kzalloc(buf_len, GFP_KERNEL); 2690 if (!buf) 2691 return ICE_ERR_NO_MEMORY; 2692 2693 buf->num_elems = cpu_to_le16(num_items); 2694 buf->res_type = cpu_to_le16(((type << ICE_AQC_RES_TYPE_S) & 2695 ICE_AQC_RES_TYPE_M) | alloc_shared); 2696 2697 status = ice_aq_alloc_free_res(hw, 1, buf, buf_len, 2698 ice_aqc_opc_alloc_res, NULL); 2699 if (status) 2700 goto exit; 2701 2702 *counter_id = le16_to_cpu(buf->elem[0].e.sw_resp); 2703 2704 exit: 2705 kfree(buf); 2706 return status; 2707 } 2708 2709 /** 2710 * ice_free_res_cntr - free resource counter 2711 * @hw: pointer to the hardware structure 2712 * @type: type of resource 2713 * @alloc_shared: if set it is shared else dedicated 2714 * @num_items: number of entries to be freed for FD resource type 2715 * @counter_id: counter ID resource which needs to be freed 2716 */ 2717 enum ice_status 2718 ice_free_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items, 2719 u16 counter_id) 2720 { 2721 struct ice_aqc_alloc_free_res_elem *buf; 2722 enum ice_status status; 2723 u16 buf_len; 2724 2725 /* Free resource */ 2726 buf_len = struct_size(buf, elem, 1); 2727 buf = kzalloc(buf_len, GFP_KERNEL); 2728 if (!buf) 2729 return ICE_ERR_NO_MEMORY; 2730 2731 buf->num_elems = cpu_to_le16(num_items); 2732 buf->res_type = cpu_to_le16(((type << ICE_AQC_RES_TYPE_S) & 2733 ICE_AQC_RES_TYPE_M) | alloc_shared); 2734 buf->elem[0].e.sw_resp = cpu_to_le16(counter_id); 2735 2736 status = ice_aq_alloc_free_res(hw, 1, buf, buf_len, 2737 ice_aqc_opc_free_res, NULL); 2738 if (status) 2739 ice_debug(hw, ICE_DBG_SW, "counter resource could not be freed\n"); 2740 2741 kfree(buf); 2742 return status; 2743 } 2744 2745 /** 2746 * ice_replay_vsi_fltr - Replay filters for requested VSI 2747 * @hw: pointer to the hardware structure 2748 * @vsi_handle: driver VSI handle 2749 * @recp_id: Recipe ID for which rules need to be replayed 2750 * @list_head: list for which filters need to be replayed 2751 * 2752 * Replays the filter of recipe recp_id for a VSI represented via vsi_handle. 2753 * It is required to pass valid VSI handle. 2754 */ 2755 static enum ice_status 2756 ice_replay_vsi_fltr(struct ice_hw *hw, u16 vsi_handle, u8 recp_id, 2757 struct list_head *list_head) 2758 { 2759 struct ice_fltr_mgmt_list_entry *itr; 2760 enum ice_status status = 0; 2761 u16 hw_vsi_id; 2762 2763 if (list_empty(list_head)) 2764 return status; 2765 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 2766 2767 list_for_each_entry(itr, list_head, list_entry) { 2768 struct ice_fltr_list_entry f_entry; 2769 2770 f_entry.fltr_info = itr->fltr_info; 2771 if (itr->vsi_count < 2 && recp_id != ICE_SW_LKUP_VLAN && 2772 itr->fltr_info.vsi_handle == vsi_handle) { 2773 /* update the src in case it is VSI num */ 2774 if (f_entry.fltr_info.src_id == ICE_SRC_ID_VSI) 2775 f_entry.fltr_info.src = hw_vsi_id; 2776 status = ice_add_rule_internal(hw, recp_id, &f_entry); 2777 if (status) 2778 goto end; 2779 continue; 2780 } 2781 if (!itr->vsi_list_info || 2782 !test_bit(vsi_handle, itr->vsi_list_info->vsi_map)) 2783 continue; 2784 /* Clearing it so that the logic can add it back */ 2785 clear_bit(vsi_handle, itr->vsi_list_info->vsi_map); 2786 f_entry.fltr_info.vsi_handle = vsi_handle; 2787 f_entry.fltr_info.fltr_act = ICE_FWD_TO_VSI; 2788 /* update the src in case it is VSI num */ 2789 if (f_entry.fltr_info.src_id == ICE_SRC_ID_VSI) 2790 f_entry.fltr_info.src = hw_vsi_id; 2791 if (recp_id == ICE_SW_LKUP_VLAN) 2792 status = ice_add_vlan_internal(hw, &f_entry); 2793 else 2794 status = ice_add_rule_internal(hw, recp_id, &f_entry); 2795 if (status) 2796 goto end; 2797 } 2798 end: 2799 return status; 2800 } 2801 2802 /** 2803 * ice_replay_vsi_all_fltr - replay all filters stored in bookkeeping lists 2804 * @hw: pointer to the hardware structure 2805 * @vsi_handle: driver VSI handle 2806 * 2807 * Replays filters for requested VSI via vsi_handle. 2808 */ 2809 enum ice_status ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle) 2810 { 2811 struct ice_switch_info *sw = hw->switch_info; 2812 enum ice_status status = 0; 2813 u8 i; 2814 2815 for (i = 0; i < ICE_SW_LKUP_LAST; i++) { 2816 struct list_head *head; 2817 2818 head = &sw->recp_list[i].filt_replay_rules; 2819 status = ice_replay_vsi_fltr(hw, vsi_handle, i, head); 2820 if (status) 2821 return status; 2822 } 2823 return status; 2824 } 2825 2826 /** 2827 * ice_rm_all_sw_replay_rule_info - deletes filter replay rules 2828 * @hw: pointer to the HW struct 2829 * 2830 * Deletes the filter replay rules. 2831 */ 2832 void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw) 2833 { 2834 struct ice_switch_info *sw = hw->switch_info; 2835 u8 i; 2836 2837 if (!sw) 2838 return; 2839 2840 for (i = 0; i < ICE_SW_LKUP_LAST; i++) { 2841 if (!list_empty(&sw->recp_list[i].filt_replay_rules)) { 2842 struct list_head *l_head; 2843 2844 l_head = &sw->recp_list[i].filt_replay_rules; 2845 ice_rem_sw_rule_info(hw, l_head); 2846 } 2847 } 2848 } 2849