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), 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_kzalloc(ice_hw_to_dev(hw), 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 (!m_entry->vsi_list_info) 1242 return ICE_ERR_NO_MEMORY; 1243 1244 /* If this entry was large action then the large action needs 1245 * to be updated to point to FWD to VSI list 1246 */ 1247 if (m_entry->sw_marker_id != ICE_INVAL_SW_MARKER_ID) 1248 status = 1249 ice_add_marker_act(hw, m_entry, 1250 m_entry->sw_marker_id, 1251 m_entry->lg_act_idx); 1252 } else { 1253 u16 vsi_handle = new_fltr->vsi_handle; 1254 enum ice_adminq_opc opcode; 1255 1256 if (!m_entry->vsi_list_info) 1257 return ICE_ERR_CFG; 1258 1259 /* A rule already exists with the new VSI being added */ 1260 if (test_bit(vsi_handle, m_entry->vsi_list_info->vsi_map)) 1261 return 0; 1262 1263 /* Update the previously created VSI list set with 1264 * the new VSI ID passed in 1265 */ 1266 vsi_list_id = cur_fltr->fwd_id.vsi_list_id; 1267 opcode = ice_aqc_opc_update_sw_rules; 1268 1269 status = ice_update_vsi_list_rule(hw, &vsi_handle, 1, 1270 vsi_list_id, false, opcode, 1271 new_fltr->lkup_type); 1272 /* update VSI list mapping info with new VSI ID */ 1273 if (!status) 1274 set_bit(vsi_handle, m_entry->vsi_list_info->vsi_map); 1275 } 1276 if (!status) 1277 m_entry->vsi_count++; 1278 return status; 1279 } 1280 1281 /** 1282 * ice_find_rule_entry - Search a rule entry 1283 * @hw: pointer to the hardware structure 1284 * @recp_id: lookup type for which the specified rule needs to be searched 1285 * @f_info: rule information 1286 * 1287 * Helper function to search for a given rule entry 1288 * Returns pointer to entry storing the rule if found 1289 */ 1290 static struct ice_fltr_mgmt_list_entry * 1291 ice_find_rule_entry(struct ice_hw *hw, u8 recp_id, struct ice_fltr_info *f_info) 1292 { 1293 struct ice_fltr_mgmt_list_entry *list_itr, *ret = NULL; 1294 struct ice_switch_info *sw = hw->switch_info; 1295 struct list_head *list_head; 1296 1297 list_head = &sw->recp_list[recp_id].filt_rules; 1298 list_for_each_entry(list_itr, list_head, list_entry) { 1299 if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data, 1300 sizeof(f_info->l_data)) && 1301 f_info->flag == list_itr->fltr_info.flag) { 1302 ret = list_itr; 1303 break; 1304 } 1305 } 1306 return ret; 1307 } 1308 1309 /** 1310 * ice_find_vsi_list_entry - Search VSI list map with VSI count 1 1311 * @hw: pointer to the hardware structure 1312 * @recp_id: lookup type for which VSI lists needs to be searched 1313 * @vsi_handle: VSI handle to be found in VSI list 1314 * @vsi_list_id: VSI list ID found containing vsi_handle 1315 * 1316 * Helper function to search a VSI list with single entry containing given VSI 1317 * handle element. This can be extended further to search VSI list with more 1318 * than 1 vsi_count. Returns pointer to VSI list entry if found. 1319 */ 1320 static struct ice_vsi_list_map_info * 1321 ice_find_vsi_list_entry(struct ice_hw *hw, u8 recp_id, u16 vsi_handle, 1322 u16 *vsi_list_id) 1323 { 1324 struct ice_vsi_list_map_info *map_info = NULL; 1325 struct ice_switch_info *sw = hw->switch_info; 1326 struct ice_fltr_mgmt_list_entry *list_itr; 1327 struct list_head *list_head; 1328 1329 list_head = &sw->recp_list[recp_id].filt_rules; 1330 list_for_each_entry(list_itr, list_head, list_entry) { 1331 if (list_itr->vsi_count == 1 && list_itr->vsi_list_info) { 1332 map_info = list_itr->vsi_list_info; 1333 if (test_bit(vsi_handle, map_info->vsi_map)) { 1334 *vsi_list_id = map_info->vsi_list_id; 1335 return map_info; 1336 } 1337 } 1338 } 1339 return NULL; 1340 } 1341 1342 /** 1343 * ice_add_rule_internal - add rule for a given lookup type 1344 * @hw: pointer to the hardware structure 1345 * @recp_id: lookup type (recipe ID) for which rule has to be added 1346 * @f_entry: structure containing MAC forwarding information 1347 * 1348 * Adds or updates the rule lists for a given recipe 1349 */ 1350 static enum ice_status 1351 ice_add_rule_internal(struct ice_hw *hw, u8 recp_id, 1352 struct ice_fltr_list_entry *f_entry) 1353 { 1354 struct ice_switch_info *sw = hw->switch_info; 1355 struct ice_fltr_info *new_fltr, *cur_fltr; 1356 struct ice_fltr_mgmt_list_entry *m_entry; 1357 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1358 enum ice_status status = 0; 1359 1360 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle)) 1361 return ICE_ERR_PARAM; 1362 f_entry->fltr_info.fwd_id.hw_vsi_id = 1363 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle); 1364 1365 rule_lock = &sw->recp_list[recp_id].filt_rule_lock; 1366 1367 mutex_lock(rule_lock); 1368 new_fltr = &f_entry->fltr_info; 1369 if (new_fltr->flag & ICE_FLTR_RX) 1370 new_fltr->src = hw->port_info->lport; 1371 else if (new_fltr->flag & ICE_FLTR_TX) 1372 new_fltr->src = f_entry->fltr_info.fwd_id.hw_vsi_id; 1373 1374 m_entry = ice_find_rule_entry(hw, recp_id, new_fltr); 1375 if (!m_entry) { 1376 mutex_unlock(rule_lock); 1377 return ice_create_pkt_fwd_rule(hw, f_entry); 1378 } 1379 1380 cur_fltr = &m_entry->fltr_info; 1381 status = ice_add_update_vsi_list(hw, m_entry, cur_fltr, new_fltr); 1382 mutex_unlock(rule_lock); 1383 1384 return status; 1385 } 1386 1387 /** 1388 * ice_remove_vsi_list_rule 1389 * @hw: pointer to the hardware structure 1390 * @vsi_list_id: VSI list ID generated as part of allocate resource 1391 * @lkup_type: switch rule filter lookup type 1392 * 1393 * The VSI list should be emptied before this function is called to remove the 1394 * VSI list. 1395 */ 1396 static enum ice_status 1397 ice_remove_vsi_list_rule(struct ice_hw *hw, u16 vsi_list_id, 1398 enum ice_sw_lkup_type lkup_type) 1399 { 1400 struct ice_aqc_sw_rules_elem *s_rule; 1401 enum ice_status status; 1402 u16 s_rule_size; 1403 1404 s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(0); 1405 s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL); 1406 if (!s_rule) 1407 return ICE_ERR_NO_MEMORY; 1408 1409 s_rule->type = cpu_to_le16(ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR); 1410 s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id); 1411 1412 /* Free the vsi_list resource that we allocated. It is assumed that the 1413 * list is empty at this point. 1414 */ 1415 status = ice_aq_alloc_free_vsi_list(hw, &vsi_list_id, lkup_type, 1416 ice_aqc_opc_free_res); 1417 1418 devm_kfree(ice_hw_to_dev(hw), s_rule); 1419 return status; 1420 } 1421 1422 /** 1423 * ice_rem_update_vsi_list 1424 * @hw: pointer to the hardware structure 1425 * @vsi_handle: VSI handle of the VSI to remove 1426 * @fm_list: filter management entry for which the VSI list management needs to 1427 * be done 1428 */ 1429 static enum ice_status 1430 ice_rem_update_vsi_list(struct ice_hw *hw, u16 vsi_handle, 1431 struct ice_fltr_mgmt_list_entry *fm_list) 1432 { 1433 enum ice_sw_lkup_type lkup_type; 1434 enum ice_status status = 0; 1435 u16 vsi_list_id; 1436 1437 if (fm_list->fltr_info.fltr_act != ICE_FWD_TO_VSI_LIST || 1438 fm_list->vsi_count == 0) 1439 return ICE_ERR_PARAM; 1440 1441 /* A rule with the VSI being removed does not exist */ 1442 if (!test_bit(vsi_handle, fm_list->vsi_list_info->vsi_map)) 1443 return ICE_ERR_DOES_NOT_EXIST; 1444 1445 lkup_type = fm_list->fltr_info.lkup_type; 1446 vsi_list_id = fm_list->fltr_info.fwd_id.vsi_list_id; 1447 status = ice_update_vsi_list_rule(hw, &vsi_handle, 1, vsi_list_id, true, 1448 ice_aqc_opc_update_sw_rules, 1449 lkup_type); 1450 if (status) 1451 return status; 1452 1453 fm_list->vsi_count--; 1454 clear_bit(vsi_handle, fm_list->vsi_list_info->vsi_map); 1455 1456 if (fm_list->vsi_count == 1 && lkup_type != ICE_SW_LKUP_VLAN) { 1457 struct ice_fltr_info tmp_fltr_info = fm_list->fltr_info; 1458 struct ice_vsi_list_map_info *vsi_list_info = 1459 fm_list->vsi_list_info; 1460 u16 rem_vsi_handle; 1461 1462 rem_vsi_handle = find_first_bit(vsi_list_info->vsi_map, 1463 ICE_MAX_VSI); 1464 if (!ice_is_vsi_valid(hw, rem_vsi_handle)) 1465 return ICE_ERR_OUT_OF_RANGE; 1466 1467 /* Make sure VSI list is empty before removing it below */ 1468 status = ice_update_vsi_list_rule(hw, &rem_vsi_handle, 1, 1469 vsi_list_id, true, 1470 ice_aqc_opc_update_sw_rules, 1471 lkup_type); 1472 if (status) 1473 return status; 1474 1475 tmp_fltr_info.fltr_act = ICE_FWD_TO_VSI; 1476 tmp_fltr_info.fwd_id.hw_vsi_id = 1477 ice_get_hw_vsi_num(hw, rem_vsi_handle); 1478 tmp_fltr_info.vsi_handle = rem_vsi_handle; 1479 status = ice_update_pkt_fwd_rule(hw, &tmp_fltr_info); 1480 if (status) { 1481 ice_debug(hw, ICE_DBG_SW, "Failed to update pkt fwd rule to FWD_TO_VSI on HW VSI %d, error %d\n", 1482 tmp_fltr_info.fwd_id.hw_vsi_id, status); 1483 return status; 1484 } 1485 1486 fm_list->fltr_info = tmp_fltr_info; 1487 } 1488 1489 if ((fm_list->vsi_count == 1 && lkup_type != ICE_SW_LKUP_VLAN) || 1490 (fm_list->vsi_count == 0 && lkup_type == ICE_SW_LKUP_VLAN)) { 1491 struct ice_vsi_list_map_info *vsi_list_info = 1492 fm_list->vsi_list_info; 1493 1494 /* Remove the VSI list since it is no longer used */ 1495 status = ice_remove_vsi_list_rule(hw, vsi_list_id, lkup_type); 1496 if (status) { 1497 ice_debug(hw, ICE_DBG_SW, "Failed to remove VSI list %d, error %d\n", 1498 vsi_list_id, status); 1499 return status; 1500 } 1501 1502 list_del(&vsi_list_info->list_entry); 1503 devm_kfree(ice_hw_to_dev(hw), vsi_list_info); 1504 fm_list->vsi_list_info = NULL; 1505 } 1506 1507 return status; 1508 } 1509 1510 /** 1511 * ice_remove_rule_internal - Remove a filter rule of a given type 1512 * @hw: pointer to the hardware structure 1513 * @recp_id: recipe ID for which the rule needs to removed 1514 * @f_entry: rule entry containing filter information 1515 */ 1516 static enum ice_status 1517 ice_remove_rule_internal(struct ice_hw *hw, u8 recp_id, 1518 struct ice_fltr_list_entry *f_entry) 1519 { 1520 struct ice_switch_info *sw = hw->switch_info; 1521 struct ice_fltr_mgmt_list_entry *list_elem; 1522 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1523 enum ice_status status = 0; 1524 bool remove_rule = false; 1525 u16 vsi_handle; 1526 1527 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle)) 1528 return ICE_ERR_PARAM; 1529 f_entry->fltr_info.fwd_id.hw_vsi_id = 1530 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle); 1531 1532 rule_lock = &sw->recp_list[recp_id].filt_rule_lock; 1533 mutex_lock(rule_lock); 1534 list_elem = ice_find_rule_entry(hw, recp_id, &f_entry->fltr_info); 1535 if (!list_elem) { 1536 status = ICE_ERR_DOES_NOT_EXIST; 1537 goto exit; 1538 } 1539 1540 if (list_elem->fltr_info.fltr_act != ICE_FWD_TO_VSI_LIST) { 1541 remove_rule = true; 1542 } else if (!list_elem->vsi_list_info) { 1543 status = ICE_ERR_DOES_NOT_EXIST; 1544 goto exit; 1545 } else if (list_elem->vsi_list_info->ref_cnt > 1) { 1546 /* a ref_cnt > 1 indicates that the vsi_list is being 1547 * shared by multiple rules. Decrement the ref_cnt and 1548 * remove this rule, but do not modify the list, as it 1549 * is in-use by other rules. 1550 */ 1551 list_elem->vsi_list_info->ref_cnt--; 1552 remove_rule = true; 1553 } else { 1554 /* a ref_cnt of 1 indicates the vsi_list is only used 1555 * by one rule. However, the original removal request is only 1556 * for a single VSI. Update the vsi_list first, and only 1557 * remove the rule if there are no further VSIs in this list. 1558 */ 1559 vsi_handle = f_entry->fltr_info.vsi_handle; 1560 status = ice_rem_update_vsi_list(hw, vsi_handle, list_elem); 1561 if (status) 1562 goto exit; 1563 /* if VSI count goes to zero after updating the VSI list */ 1564 if (list_elem->vsi_count == 0) 1565 remove_rule = true; 1566 } 1567 1568 if (remove_rule) { 1569 /* Remove the lookup rule */ 1570 struct ice_aqc_sw_rules_elem *s_rule; 1571 1572 s_rule = devm_kzalloc(ice_hw_to_dev(hw), 1573 ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1574 GFP_KERNEL); 1575 if (!s_rule) { 1576 status = ICE_ERR_NO_MEMORY; 1577 goto exit; 1578 } 1579 1580 ice_fill_sw_rule(hw, &list_elem->fltr_info, s_rule, 1581 ice_aqc_opc_remove_sw_rules); 1582 1583 status = ice_aq_sw_rules(hw, s_rule, 1584 ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1, 1585 ice_aqc_opc_remove_sw_rules, NULL); 1586 1587 /* Remove a book keeping from the list */ 1588 devm_kfree(ice_hw_to_dev(hw), s_rule); 1589 1590 if (status) 1591 goto exit; 1592 1593 list_del(&list_elem->list_entry); 1594 devm_kfree(ice_hw_to_dev(hw), list_elem); 1595 } 1596 exit: 1597 mutex_unlock(rule_lock); 1598 return status; 1599 } 1600 1601 /** 1602 * ice_add_mac - Add a MAC address based filter rule 1603 * @hw: pointer to the hardware structure 1604 * @m_list: list of MAC addresses and forwarding information 1605 * 1606 * IMPORTANT: When the ucast_shared flag is set to false and m_list has 1607 * multiple unicast addresses, the function assumes that all the 1608 * addresses are unique in a given add_mac call. It doesn't 1609 * check for duplicates in this case, removing duplicates from a given 1610 * list should be taken care of in the caller of this function. 1611 */ 1612 enum ice_status ice_add_mac(struct ice_hw *hw, struct list_head *m_list) 1613 { 1614 struct ice_aqc_sw_rules_elem *s_rule, *r_iter; 1615 struct ice_fltr_list_entry *m_list_itr; 1616 struct list_head *rule_head; 1617 u16 total_elem_left, s_rule_size; 1618 struct ice_switch_info *sw; 1619 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1620 enum ice_status status = 0; 1621 u16 num_unicast = 0; 1622 u8 elem_sent; 1623 1624 if (!m_list || !hw) 1625 return ICE_ERR_PARAM; 1626 1627 s_rule = NULL; 1628 sw = hw->switch_info; 1629 rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock; 1630 list_for_each_entry(m_list_itr, m_list, list_entry) { 1631 u8 *add = &m_list_itr->fltr_info.l_data.mac.mac_addr[0]; 1632 u16 vsi_handle; 1633 u16 hw_vsi_id; 1634 1635 m_list_itr->fltr_info.flag = ICE_FLTR_TX; 1636 vsi_handle = m_list_itr->fltr_info.vsi_handle; 1637 if (!ice_is_vsi_valid(hw, vsi_handle)) 1638 return ICE_ERR_PARAM; 1639 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 1640 m_list_itr->fltr_info.fwd_id.hw_vsi_id = hw_vsi_id; 1641 /* update the src in case it is VSI num */ 1642 if (m_list_itr->fltr_info.src_id != ICE_SRC_ID_VSI) 1643 return ICE_ERR_PARAM; 1644 m_list_itr->fltr_info.src = hw_vsi_id; 1645 if (m_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_MAC || 1646 is_zero_ether_addr(add)) 1647 return ICE_ERR_PARAM; 1648 if (is_unicast_ether_addr(add) && !hw->ucast_shared) { 1649 /* Don't overwrite the unicast address */ 1650 mutex_lock(rule_lock); 1651 if (ice_find_rule_entry(hw, ICE_SW_LKUP_MAC, 1652 &m_list_itr->fltr_info)) { 1653 mutex_unlock(rule_lock); 1654 return ICE_ERR_ALREADY_EXISTS; 1655 } 1656 mutex_unlock(rule_lock); 1657 num_unicast++; 1658 } else if (is_multicast_ether_addr(add) || 1659 (is_unicast_ether_addr(add) && hw->ucast_shared)) { 1660 m_list_itr->status = 1661 ice_add_rule_internal(hw, ICE_SW_LKUP_MAC, 1662 m_list_itr); 1663 if (m_list_itr->status) 1664 return m_list_itr->status; 1665 } 1666 } 1667 1668 mutex_lock(rule_lock); 1669 /* Exit if no suitable entries were found for adding bulk switch rule */ 1670 if (!num_unicast) { 1671 status = 0; 1672 goto ice_add_mac_exit; 1673 } 1674 1675 rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules; 1676 1677 /* Allocate switch rule buffer for the bulk update for unicast */ 1678 s_rule_size = ICE_SW_RULE_RX_TX_ETH_HDR_SIZE; 1679 s_rule = devm_kcalloc(ice_hw_to_dev(hw), num_unicast, s_rule_size, 1680 GFP_KERNEL); 1681 if (!s_rule) { 1682 status = ICE_ERR_NO_MEMORY; 1683 goto ice_add_mac_exit; 1684 } 1685 1686 r_iter = s_rule; 1687 list_for_each_entry(m_list_itr, m_list, list_entry) { 1688 struct ice_fltr_info *f_info = &m_list_itr->fltr_info; 1689 u8 *mac_addr = &f_info->l_data.mac.mac_addr[0]; 1690 1691 if (is_unicast_ether_addr(mac_addr)) { 1692 ice_fill_sw_rule(hw, &m_list_itr->fltr_info, r_iter, 1693 ice_aqc_opc_add_sw_rules); 1694 r_iter = (struct ice_aqc_sw_rules_elem *) 1695 ((u8 *)r_iter + s_rule_size); 1696 } 1697 } 1698 1699 /* Call AQ bulk switch rule update for all unicast addresses */ 1700 r_iter = s_rule; 1701 /* Call AQ switch rule in AQ_MAX chunk */ 1702 for (total_elem_left = num_unicast; total_elem_left > 0; 1703 total_elem_left -= elem_sent) { 1704 struct ice_aqc_sw_rules_elem *entry = r_iter; 1705 1706 elem_sent = min_t(u8, total_elem_left, 1707 (ICE_AQ_MAX_BUF_LEN / s_rule_size)); 1708 status = ice_aq_sw_rules(hw, entry, elem_sent * s_rule_size, 1709 elem_sent, ice_aqc_opc_add_sw_rules, 1710 NULL); 1711 if (status) 1712 goto ice_add_mac_exit; 1713 r_iter = (struct ice_aqc_sw_rules_elem *) 1714 ((u8 *)r_iter + (elem_sent * s_rule_size)); 1715 } 1716 1717 /* Fill up rule ID based on the value returned from FW */ 1718 r_iter = s_rule; 1719 list_for_each_entry(m_list_itr, m_list, list_entry) { 1720 struct ice_fltr_info *f_info = &m_list_itr->fltr_info; 1721 u8 *mac_addr = &f_info->l_data.mac.mac_addr[0]; 1722 struct ice_fltr_mgmt_list_entry *fm_entry; 1723 1724 if (is_unicast_ether_addr(mac_addr)) { 1725 f_info->fltr_rule_id = 1726 le16_to_cpu(r_iter->pdata.lkup_tx_rx.index); 1727 f_info->fltr_act = ICE_FWD_TO_VSI; 1728 /* Create an entry to track this MAC address */ 1729 fm_entry = devm_kzalloc(ice_hw_to_dev(hw), 1730 sizeof(*fm_entry), GFP_KERNEL); 1731 if (!fm_entry) { 1732 status = ICE_ERR_NO_MEMORY; 1733 goto ice_add_mac_exit; 1734 } 1735 fm_entry->fltr_info = *f_info; 1736 fm_entry->vsi_count = 1; 1737 /* The book keeping entries will get removed when 1738 * base driver calls remove filter AQ command 1739 */ 1740 1741 list_add(&fm_entry->list_entry, rule_head); 1742 r_iter = (struct ice_aqc_sw_rules_elem *) 1743 ((u8 *)r_iter + s_rule_size); 1744 } 1745 } 1746 1747 ice_add_mac_exit: 1748 mutex_unlock(rule_lock); 1749 if (s_rule) 1750 devm_kfree(ice_hw_to_dev(hw), s_rule); 1751 return status; 1752 } 1753 1754 /** 1755 * ice_add_vlan_internal - Add one VLAN based filter rule 1756 * @hw: pointer to the hardware structure 1757 * @f_entry: filter entry containing one VLAN information 1758 */ 1759 static enum ice_status 1760 ice_add_vlan_internal(struct ice_hw *hw, struct ice_fltr_list_entry *f_entry) 1761 { 1762 struct ice_switch_info *sw = hw->switch_info; 1763 struct ice_fltr_mgmt_list_entry *v_list_itr; 1764 struct ice_fltr_info *new_fltr, *cur_fltr; 1765 enum ice_sw_lkup_type lkup_type; 1766 u16 vsi_list_id = 0, vsi_handle; 1767 struct mutex *rule_lock; /* Lock to protect filter rule list */ 1768 enum ice_status status = 0; 1769 1770 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle)) 1771 return ICE_ERR_PARAM; 1772 1773 f_entry->fltr_info.fwd_id.hw_vsi_id = 1774 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle); 1775 new_fltr = &f_entry->fltr_info; 1776 1777 /* VLAN ID should only be 12 bits */ 1778 if (new_fltr->l_data.vlan.vlan_id > ICE_MAX_VLAN_ID) 1779 return ICE_ERR_PARAM; 1780 1781 if (new_fltr->src_id != ICE_SRC_ID_VSI) 1782 return ICE_ERR_PARAM; 1783 1784 new_fltr->src = new_fltr->fwd_id.hw_vsi_id; 1785 lkup_type = new_fltr->lkup_type; 1786 vsi_handle = new_fltr->vsi_handle; 1787 rule_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock; 1788 mutex_lock(rule_lock); 1789 v_list_itr = ice_find_rule_entry(hw, ICE_SW_LKUP_VLAN, new_fltr); 1790 if (!v_list_itr) { 1791 struct ice_vsi_list_map_info *map_info = NULL; 1792 1793 if (new_fltr->fltr_act == ICE_FWD_TO_VSI) { 1794 /* All VLAN pruning rules use a VSI list. Check if 1795 * there is already a VSI list containing VSI that we 1796 * want to add. If found, use the same vsi_list_id for 1797 * this new VLAN rule or else create a new list. 1798 */ 1799 map_info = ice_find_vsi_list_entry(hw, ICE_SW_LKUP_VLAN, 1800 vsi_handle, 1801 &vsi_list_id); 1802 if (!map_info) { 1803 status = ice_create_vsi_list_rule(hw, 1804 &vsi_handle, 1805 1, 1806 &vsi_list_id, 1807 lkup_type); 1808 if (status) 1809 goto exit; 1810 } 1811 /* Convert the action to forwarding to a VSI list. */ 1812 new_fltr->fltr_act = ICE_FWD_TO_VSI_LIST; 1813 new_fltr->fwd_id.vsi_list_id = vsi_list_id; 1814 } 1815 1816 status = ice_create_pkt_fwd_rule(hw, f_entry); 1817 if (!status) { 1818 v_list_itr = ice_find_rule_entry(hw, ICE_SW_LKUP_VLAN, 1819 new_fltr); 1820 if (!v_list_itr) { 1821 status = ICE_ERR_DOES_NOT_EXIST; 1822 goto exit; 1823 } 1824 /* reuse VSI list for new rule and increment ref_cnt */ 1825 if (map_info) { 1826 v_list_itr->vsi_list_info = map_info; 1827 map_info->ref_cnt++; 1828 } else { 1829 v_list_itr->vsi_list_info = 1830 ice_create_vsi_list_map(hw, &vsi_handle, 1831 1, vsi_list_id); 1832 } 1833 } 1834 } else if (v_list_itr->vsi_list_info->ref_cnt == 1) { 1835 /* Update existing VSI list to add new VSI ID only if it used 1836 * by one VLAN rule. 1837 */ 1838 cur_fltr = &v_list_itr->fltr_info; 1839 status = ice_add_update_vsi_list(hw, v_list_itr, cur_fltr, 1840 new_fltr); 1841 } else { 1842 /* If VLAN rule exists and VSI list being used by this rule is 1843 * referenced by more than 1 VLAN rule. Then create a new VSI 1844 * list appending previous VSI with new VSI and update existing 1845 * VLAN rule to point to new VSI list ID 1846 */ 1847 struct ice_fltr_info tmp_fltr; 1848 u16 vsi_handle_arr[2]; 1849 u16 cur_handle; 1850 1851 /* Current implementation only supports reusing VSI list with 1852 * one VSI count. We should never hit below condition 1853 */ 1854 if (v_list_itr->vsi_count > 1 && 1855 v_list_itr->vsi_list_info->ref_cnt > 1) { 1856 ice_debug(hw, ICE_DBG_SW, "Invalid configuration: Optimization to reuse VSI list with more than one VSI is not being done yet\n"); 1857 status = ICE_ERR_CFG; 1858 goto exit; 1859 } 1860 1861 cur_handle = 1862 find_first_bit(v_list_itr->vsi_list_info->vsi_map, 1863 ICE_MAX_VSI); 1864 1865 /* A rule already exists with the new VSI being added */ 1866 if (cur_handle == vsi_handle) { 1867 status = ICE_ERR_ALREADY_EXISTS; 1868 goto exit; 1869 } 1870 1871 vsi_handle_arr[0] = cur_handle; 1872 vsi_handle_arr[1] = vsi_handle; 1873 status = ice_create_vsi_list_rule(hw, &vsi_handle_arr[0], 2, 1874 &vsi_list_id, lkup_type); 1875 if (status) 1876 goto exit; 1877 1878 tmp_fltr = v_list_itr->fltr_info; 1879 tmp_fltr.fltr_rule_id = v_list_itr->fltr_info.fltr_rule_id; 1880 tmp_fltr.fwd_id.vsi_list_id = vsi_list_id; 1881 tmp_fltr.fltr_act = ICE_FWD_TO_VSI_LIST; 1882 /* Update the previous switch rule to a new VSI list which 1883 * includes current VSI that is requested 1884 */ 1885 status = ice_update_pkt_fwd_rule(hw, &tmp_fltr); 1886 if (status) 1887 goto exit; 1888 1889 /* before overriding VSI list map info. decrement ref_cnt of 1890 * previous VSI list 1891 */ 1892 v_list_itr->vsi_list_info->ref_cnt--; 1893 1894 /* now update to newly created list */ 1895 v_list_itr->fltr_info.fwd_id.vsi_list_id = vsi_list_id; 1896 v_list_itr->vsi_list_info = 1897 ice_create_vsi_list_map(hw, &vsi_handle_arr[0], 2, 1898 vsi_list_id); 1899 v_list_itr->vsi_count++; 1900 } 1901 1902 exit: 1903 mutex_unlock(rule_lock); 1904 return status; 1905 } 1906 1907 /** 1908 * ice_add_vlan - Add VLAN based filter rule 1909 * @hw: pointer to the hardware structure 1910 * @v_list: list of VLAN entries and forwarding information 1911 */ 1912 enum ice_status ice_add_vlan(struct ice_hw *hw, struct list_head *v_list) 1913 { 1914 struct ice_fltr_list_entry *v_list_itr; 1915 1916 if (!v_list || !hw) 1917 return ICE_ERR_PARAM; 1918 1919 list_for_each_entry(v_list_itr, v_list, list_entry) { 1920 if (v_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_VLAN) 1921 return ICE_ERR_PARAM; 1922 v_list_itr->fltr_info.flag = ICE_FLTR_TX; 1923 v_list_itr->status = ice_add_vlan_internal(hw, v_list_itr); 1924 if (v_list_itr->status) 1925 return v_list_itr->status; 1926 } 1927 return 0; 1928 } 1929 1930 /** 1931 * ice_add_eth_mac - Add ethertype and MAC based filter rule 1932 * @hw: pointer to the hardware structure 1933 * @em_list: list of ether type MAC filter, MAC is optional 1934 * 1935 * This function requires the caller to populate the entries in 1936 * the filter list with the necessary fields (including flags to 1937 * indicate Tx or Rx rules). 1938 */ 1939 enum ice_status 1940 ice_add_eth_mac(struct ice_hw *hw, struct list_head *em_list) 1941 { 1942 struct ice_fltr_list_entry *em_list_itr; 1943 1944 if (!em_list || !hw) 1945 return ICE_ERR_PARAM; 1946 1947 list_for_each_entry(em_list_itr, em_list, list_entry) { 1948 enum ice_sw_lkup_type l_type = 1949 em_list_itr->fltr_info.lkup_type; 1950 1951 if (l_type != ICE_SW_LKUP_ETHERTYPE_MAC && 1952 l_type != ICE_SW_LKUP_ETHERTYPE) 1953 return ICE_ERR_PARAM; 1954 1955 em_list_itr->status = ice_add_rule_internal(hw, l_type, 1956 em_list_itr); 1957 if (em_list_itr->status) 1958 return em_list_itr->status; 1959 } 1960 return 0; 1961 } 1962 1963 /** 1964 * ice_remove_eth_mac - Remove an ethertype (or MAC) based filter rule 1965 * @hw: pointer to the hardware structure 1966 * @em_list: list of ethertype or ethertype MAC entries 1967 */ 1968 enum ice_status 1969 ice_remove_eth_mac(struct ice_hw *hw, struct list_head *em_list) 1970 { 1971 struct ice_fltr_list_entry *em_list_itr, *tmp; 1972 1973 if (!em_list || !hw) 1974 return ICE_ERR_PARAM; 1975 1976 list_for_each_entry_safe(em_list_itr, tmp, em_list, list_entry) { 1977 enum ice_sw_lkup_type l_type = 1978 em_list_itr->fltr_info.lkup_type; 1979 1980 if (l_type != ICE_SW_LKUP_ETHERTYPE_MAC && 1981 l_type != ICE_SW_LKUP_ETHERTYPE) 1982 return ICE_ERR_PARAM; 1983 1984 em_list_itr->status = ice_remove_rule_internal(hw, l_type, 1985 em_list_itr); 1986 if (em_list_itr->status) 1987 return em_list_itr->status; 1988 } 1989 return 0; 1990 } 1991 1992 /** 1993 * ice_rem_sw_rule_info 1994 * @hw: pointer to the hardware structure 1995 * @rule_head: pointer to the switch list structure that we want to delete 1996 */ 1997 static void 1998 ice_rem_sw_rule_info(struct ice_hw *hw, struct list_head *rule_head) 1999 { 2000 if (!list_empty(rule_head)) { 2001 struct ice_fltr_mgmt_list_entry *entry; 2002 struct ice_fltr_mgmt_list_entry *tmp; 2003 2004 list_for_each_entry_safe(entry, tmp, rule_head, list_entry) { 2005 list_del(&entry->list_entry); 2006 devm_kfree(ice_hw_to_dev(hw), entry); 2007 } 2008 } 2009 } 2010 2011 /** 2012 * ice_cfg_dflt_vsi - change state of VSI to set/clear default 2013 * @hw: pointer to the hardware structure 2014 * @vsi_handle: VSI handle to set as default 2015 * @set: true to add the above mentioned switch rule, false to remove it 2016 * @direction: ICE_FLTR_RX or ICE_FLTR_TX 2017 * 2018 * add filter rule to set/unset given VSI as default VSI for the switch 2019 * (represented by swid) 2020 */ 2021 enum ice_status 2022 ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_handle, bool set, u8 direction) 2023 { 2024 struct ice_aqc_sw_rules_elem *s_rule; 2025 struct ice_fltr_info f_info; 2026 enum ice_adminq_opc opcode; 2027 enum ice_status status; 2028 u16 s_rule_size; 2029 u16 hw_vsi_id; 2030 2031 if (!ice_is_vsi_valid(hw, vsi_handle)) 2032 return ICE_ERR_PARAM; 2033 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 2034 2035 s_rule_size = set ? ICE_SW_RULE_RX_TX_ETH_HDR_SIZE : 2036 ICE_SW_RULE_RX_TX_NO_HDR_SIZE; 2037 2038 s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL); 2039 if (!s_rule) 2040 return ICE_ERR_NO_MEMORY; 2041 2042 memset(&f_info, 0, sizeof(f_info)); 2043 2044 f_info.lkup_type = ICE_SW_LKUP_DFLT; 2045 f_info.flag = direction; 2046 f_info.fltr_act = ICE_FWD_TO_VSI; 2047 f_info.fwd_id.hw_vsi_id = hw_vsi_id; 2048 2049 if (f_info.flag & ICE_FLTR_RX) { 2050 f_info.src = hw->port_info->lport; 2051 f_info.src_id = ICE_SRC_ID_LPORT; 2052 if (!set) 2053 f_info.fltr_rule_id = 2054 hw->port_info->dflt_rx_vsi_rule_id; 2055 } else if (f_info.flag & ICE_FLTR_TX) { 2056 f_info.src_id = ICE_SRC_ID_VSI; 2057 f_info.src = hw_vsi_id; 2058 if (!set) 2059 f_info.fltr_rule_id = 2060 hw->port_info->dflt_tx_vsi_rule_id; 2061 } 2062 2063 if (set) 2064 opcode = ice_aqc_opc_add_sw_rules; 2065 else 2066 opcode = ice_aqc_opc_remove_sw_rules; 2067 2068 ice_fill_sw_rule(hw, &f_info, s_rule, opcode); 2069 2070 status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opcode, NULL); 2071 if (status || !(f_info.flag & ICE_FLTR_TX_RX)) 2072 goto out; 2073 if (set) { 2074 u16 index = le16_to_cpu(s_rule->pdata.lkup_tx_rx.index); 2075 2076 if (f_info.flag & ICE_FLTR_TX) { 2077 hw->port_info->dflt_tx_vsi_num = hw_vsi_id; 2078 hw->port_info->dflt_tx_vsi_rule_id = index; 2079 } else if (f_info.flag & ICE_FLTR_RX) { 2080 hw->port_info->dflt_rx_vsi_num = hw_vsi_id; 2081 hw->port_info->dflt_rx_vsi_rule_id = index; 2082 } 2083 } else { 2084 if (f_info.flag & ICE_FLTR_TX) { 2085 hw->port_info->dflt_tx_vsi_num = ICE_DFLT_VSI_INVAL; 2086 hw->port_info->dflt_tx_vsi_rule_id = ICE_INVAL_ACT; 2087 } else if (f_info.flag & ICE_FLTR_RX) { 2088 hw->port_info->dflt_rx_vsi_num = ICE_DFLT_VSI_INVAL; 2089 hw->port_info->dflt_rx_vsi_rule_id = ICE_INVAL_ACT; 2090 } 2091 } 2092 2093 out: 2094 devm_kfree(ice_hw_to_dev(hw), s_rule); 2095 return status; 2096 } 2097 2098 /** 2099 * ice_find_ucast_rule_entry - Search for a unicast MAC filter rule entry 2100 * @hw: pointer to the hardware structure 2101 * @recp_id: lookup type for which the specified rule needs to be searched 2102 * @f_info: rule information 2103 * 2104 * Helper function to search for a unicast rule entry - this is to be used 2105 * to remove unicast MAC filter that is not shared with other VSIs on the 2106 * PF switch. 2107 * 2108 * Returns pointer to entry storing the rule if found 2109 */ 2110 static struct ice_fltr_mgmt_list_entry * 2111 ice_find_ucast_rule_entry(struct ice_hw *hw, u8 recp_id, 2112 struct ice_fltr_info *f_info) 2113 { 2114 struct ice_switch_info *sw = hw->switch_info; 2115 struct ice_fltr_mgmt_list_entry *list_itr; 2116 struct list_head *list_head; 2117 2118 list_head = &sw->recp_list[recp_id].filt_rules; 2119 list_for_each_entry(list_itr, list_head, list_entry) { 2120 if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data, 2121 sizeof(f_info->l_data)) && 2122 f_info->fwd_id.hw_vsi_id == 2123 list_itr->fltr_info.fwd_id.hw_vsi_id && 2124 f_info->flag == list_itr->fltr_info.flag) 2125 return list_itr; 2126 } 2127 return NULL; 2128 } 2129 2130 /** 2131 * ice_remove_mac - remove a MAC address based filter rule 2132 * @hw: pointer to the hardware structure 2133 * @m_list: list of MAC addresses and forwarding information 2134 * 2135 * This function removes either a MAC filter rule or a specific VSI from a 2136 * VSI list for a multicast MAC address. 2137 * 2138 * Returns ICE_ERR_DOES_NOT_EXIST if a given entry was not added by 2139 * ice_add_mac. Caller should be aware that this call will only work if all 2140 * the entries passed into m_list were added previously. It will not attempt to 2141 * do a partial remove of entries that were found. 2142 */ 2143 enum ice_status ice_remove_mac(struct ice_hw *hw, struct list_head *m_list) 2144 { 2145 struct ice_fltr_list_entry *list_itr, *tmp; 2146 struct mutex *rule_lock; /* Lock to protect filter rule list */ 2147 2148 if (!m_list) 2149 return ICE_ERR_PARAM; 2150 2151 rule_lock = &hw->switch_info->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock; 2152 list_for_each_entry_safe(list_itr, tmp, m_list, list_entry) { 2153 enum ice_sw_lkup_type l_type = list_itr->fltr_info.lkup_type; 2154 u8 *add = &list_itr->fltr_info.l_data.mac.mac_addr[0]; 2155 u16 vsi_handle; 2156 2157 if (l_type != ICE_SW_LKUP_MAC) 2158 return ICE_ERR_PARAM; 2159 2160 vsi_handle = list_itr->fltr_info.vsi_handle; 2161 if (!ice_is_vsi_valid(hw, vsi_handle)) 2162 return ICE_ERR_PARAM; 2163 2164 list_itr->fltr_info.fwd_id.hw_vsi_id = 2165 ice_get_hw_vsi_num(hw, vsi_handle); 2166 if (is_unicast_ether_addr(add) && !hw->ucast_shared) { 2167 /* Don't remove the unicast address that belongs to 2168 * another VSI on the switch, since it is not being 2169 * shared... 2170 */ 2171 mutex_lock(rule_lock); 2172 if (!ice_find_ucast_rule_entry(hw, ICE_SW_LKUP_MAC, 2173 &list_itr->fltr_info)) { 2174 mutex_unlock(rule_lock); 2175 return ICE_ERR_DOES_NOT_EXIST; 2176 } 2177 mutex_unlock(rule_lock); 2178 } 2179 list_itr->status = ice_remove_rule_internal(hw, 2180 ICE_SW_LKUP_MAC, 2181 list_itr); 2182 if (list_itr->status) 2183 return list_itr->status; 2184 } 2185 return 0; 2186 } 2187 2188 /** 2189 * ice_remove_vlan - Remove VLAN based filter rule 2190 * @hw: pointer to the hardware structure 2191 * @v_list: list of VLAN entries and forwarding information 2192 */ 2193 enum ice_status 2194 ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list) 2195 { 2196 struct ice_fltr_list_entry *v_list_itr, *tmp; 2197 2198 if (!v_list || !hw) 2199 return ICE_ERR_PARAM; 2200 2201 list_for_each_entry_safe(v_list_itr, tmp, v_list, list_entry) { 2202 enum ice_sw_lkup_type l_type = v_list_itr->fltr_info.lkup_type; 2203 2204 if (l_type != ICE_SW_LKUP_VLAN) 2205 return ICE_ERR_PARAM; 2206 v_list_itr->status = ice_remove_rule_internal(hw, 2207 ICE_SW_LKUP_VLAN, 2208 v_list_itr); 2209 if (v_list_itr->status) 2210 return v_list_itr->status; 2211 } 2212 return 0; 2213 } 2214 2215 /** 2216 * ice_vsi_uses_fltr - Determine if given VSI uses specified filter 2217 * @fm_entry: filter entry to inspect 2218 * @vsi_handle: VSI handle to compare with filter info 2219 */ 2220 static bool 2221 ice_vsi_uses_fltr(struct ice_fltr_mgmt_list_entry *fm_entry, u16 vsi_handle) 2222 { 2223 return ((fm_entry->fltr_info.fltr_act == ICE_FWD_TO_VSI && 2224 fm_entry->fltr_info.vsi_handle == vsi_handle) || 2225 (fm_entry->fltr_info.fltr_act == ICE_FWD_TO_VSI_LIST && 2226 fm_entry->vsi_list_info && 2227 (test_bit(vsi_handle, fm_entry->vsi_list_info->vsi_map)))); 2228 } 2229 2230 /** 2231 * ice_add_entry_to_vsi_fltr_list - Add copy of fltr_list_entry to remove list 2232 * @hw: pointer to the hardware structure 2233 * @vsi_handle: VSI handle to remove filters from 2234 * @vsi_list_head: pointer to the list to add entry to 2235 * @fi: pointer to fltr_info of filter entry to copy & add 2236 * 2237 * Helper function, used when creating a list of filters to remove from 2238 * a specific VSI. The entry added to vsi_list_head is a COPY of the 2239 * original filter entry, with the exception of fltr_info.fltr_act and 2240 * fltr_info.fwd_id fields. These are set such that later logic can 2241 * extract which VSI to remove the fltr from, and pass on that information. 2242 */ 2243 static enum ice_status 2244 ice_add_entry_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_handle, 2245 struct list_head *vsi_list_head, 2246 struct ice_fltr_info *fi) 2247 { 2248 struct ice_fltr_list_entry *tmp; 2249 2250 /* this memory is freed up in the caller function 2251 * once filters for this VSI are removed 2252 */ 2253 tmp = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*tmp), GFP_KERNEL); 2254 if (!tmp) 2255 return ICE_ERR_NO_MEMORY; 2256 2257 tmp->fltr_info = *fi; 2258 2259 /* Overwrite these fields to indicate which VSI to remove filter from, 2260 * so find and remove logic can extract the information from the 2261 * list entries. Note that original entries will still have proper 2262 * values. 2263 */ 2264 tmp->fltr_info.fltr_act = ICE_FWD_TO_VSI; 2265 tmp->fltr_info.vsi_handle = vsi_handle; 2266 tmp->fltr_info.fwd_id.hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 2267 2268 list_add(&tmp->list_entry, vsi_list_head); 2269 2270 return 0; 2271 } 2272 2273 /** 2274 * ice_add_to_vsi_fltr_list - Add VSI filters to the list 2275 * @hw: pointer to the hardware structure 2276 * @vsi_handle: VSI handle to remove filters from 2277 * @lkup_list_head: pointer to the list that has certain lookup type filters 2278 * @vsi_list_head: pointer to the list pertaining to VSI with vsi_handle 2279 * 2280 * Locates all filters in lkup_list_head that are used by the given VSI, 2281 * and adds COPIES of those entries to vsi_list_head (intended to be used 2282 * to remove the listed filters). 2283 * Note that this means all entries in vsi_list_head must be explicitly 2284 * deallocated by the caller when done with list. 2285 */ 2286 static enum ice_status 2287 ice_add_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_handle, 2288 struct list_head *lkup_list_head, 2289 struct list_head *vsi_list_head) 2290 { 2291 struct ice_fltr_mgmt_list_entry *fm_entry; 2292 enum ice_status status = 0; 2293 2294 /* check to make sure VSI ID is valid and within boundary */ 2295 if (!ice_is_vsi_valid(hw, vsi_handle)) 2296 return ICE_ERR_PARAM; 2297 2298 list_for_each_entry(fm_entry, lkup_list_head, list_entry) { 2299 if (!ice_vsi_uses_fltr(fm_entry, vsi_handle)) 2300 continue; 2301 2302 status = ice_add_entry_to_vsi_fltr_list(hw, vsi_handle, 2303 vsi_list_head, 2304 &fm_entry->fltr_info); 2305 if (status) 2306 return status; 2307 } 2308 return status; 2309 } 2310 2311 /** 2312 * ice_determine_promisc_mask 2313 * @fi: filter info to parse 2314 * 2315 * Helper function to determine which ICE_PROMISC_ mask corresponds 2316 * to given filter into. 2317 */ 2318 static u8 ice_determine_promisc_mask(struct ice_fltr_info *fi) 2319 { 2320 u16 vid = fi->l_data.mac_vlan.vlan_id; 2321 u8 *macaddr = fi->l_data.mac.mac_addr; 2322 bool is_tx_fltr = false; 2323 u8 promisc_mask = 0; 2324 2325 if (fi->flag == ICE_FLTR_TX) 2326 is_tx_fltr = true; 2327 2328 if (is_broadcast_ether_addr(macaddr)) 2329 promisc_mask |= is_tx_fltr ? 2330 ICE_PROMISC_BCAST_TX : ICE_PROMISC_BCAST_RX; 2331 else if (is_multicast_ether_addr(macaddr)) 2332 promisc_mask |= is_tx_fltr ? 2333 ICE_PROMISC_MCAST_TX : ICE_PROMISC_MCAST_RX; 2334 else if (is_unicast_ether_addr(macaddr)) 2335 promisc_mask |= is_tx_fltr ? 2336 ICE_PROMISC_UCAST_TX : ICE_PROMISC_UCAST_RX; 2337 if (vid) 2338 promisc_mask |= is_tx_fltr ? 2339 ICE_PROMISC_VLAN_TX : ICE_PROMISC_VLAN_RX; 2340 2341 return promisc_mask; 2342 } 2343 2344 /** 2345 * ice_remove_promisc - Remove promisc based filter rules 2346 * @hw: pointer to the hardware structure 2347 * @recp_id: recipe ID for which the rule needs to removed 2348 * @v_list: list of promisc entries 2349 */ 2350 static enum ice_status 2351 ice_remove_promisc(struct ice_hw *hw, u8 recp_id, 2352 struct list_head *v_list) 2353 { 2354 struct ice_fltr_list_entry *v_list_itr, *tmp; 2355 2356 list_for_each_entry_safe(v_list_itr, tmp, v_list, list_entry) { 2357 v_list_itr->status = 2358 ice_remove_rule_internal(hw, recp_id, v_list_itr); 2359 if (v_list_itr->status) 2360 return v_list_itr->status; 2361 } 2362 return 0; 2363 } 2364 2365 /** 2366 * ice_clear_vsi_promisc - clear specified promiscuous mode(s) for given VSI 2367 * @hw: pointer to the hardware structure 2368 * @vsi_handle: VSI handle to clear mode 2369 * @promisc_mask: mask of promiscuous config bits to clear 2370 * @vid: VLAN ID to clear VLAN promiscuous 2371 */ 2372 enum ice_status 2373 ice_clear_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask, 2374 u16 vid) 2375 { 2376 struct ice_switch_info *sw = hw->switch_info; 2377 struct ice_fltr_list_entry *fm_entry, *tmp; 2378 struct list_head remove_list_head; 2379 struct ice_fltr_mgmt_list_entry *itr; 2380 struct list_head *rule_head; 2381 struct mutex *rule_lock; /* Lock to protect filter rule list */ 2382 enum ice_status status = 0; 2383 u8 recipe_id; 2384 2385 if (!ice_is_vsi_valid(hw, vsi_handle)) 2386 return ICE_ERR_PARAM; 2387 2388 if (promisc_mask & (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX)) 2389 recipe_id = ICE_SW_LKUP_PROMISC_VLAN; 2390 else 2391 recipe_id = ICE_SW_LKUP_PROMISC; 2392 2393 rule_head = &sw->recp_list[recipe_id].filt_rules; 2394 rule_lock = &sw->recp_list[recipe_id].filt_rule_lock; 2395 2396 INIT_LIST_HEAD(&remove_list_head); 2397 2398 mutex_lock(rule_lock); 2399 list_for_each_entry(itr, rule_head, list_entry) { 2400 struct ice_fltr_info *fltr_info; 2401 u8 fltr_promisc_mask = 0; 2402 2403 if (!ice_vsi_uses_fltr(itr, vsi_handle)) 2404 continue; 2405 fltr_info = &itr->fltr_info; 2406 2407 if (recipe_id == ICE_SW_LKUP_PROMISC_VLAN && 2408 vid != fltr_info->l_data.mac_vlan.vlan_id) 2409 continue; 2410 2411 fltr_promisc_mask |= ice_determine_promisc_mask(fltr_info); 2412 2413 /* Skip if filter is not completely specified by given mask */ 2414 if (fltr_promisc_mask & ~promisc_mask) 2415 continue; 2416 2417 status = ice_add_entry_to_vsi_fltr_list(hw, vsi_handle, 2418 &remove_list_head, 2419 fltr_info); 2420 if (status) { 2421 mutex_unlock(rule_lock); 2422 goto free_fltr_list; 2423 } 2424 } 2425 mutex_unlock(rule_lock); 2426 2427 status = ice_remove_promisc(hw, recipe_id, &remove_list_head); 2428 2429 free_fltr_list: 2430 list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) { 2431 list_del(&fm_entry->list_entry); 2432 devm_kfree(ice_hw_to_dev(hw), fm_entry); 2433 } 2434 2435 return status; 2436 } 2437 2438 /** 2439 * ice_set_vsi_promisc - set given VSI to given promiscuous mode(s) 2440 * @hw: pointer to the hardware structure 2441 * @vsi_handle: VSI handle to configure 2442 * @promisc_mask: mask of promiscuous config bits 2443 * @vid: VLAN ID to set VLAN promiscuous 2444 */ 2445 enum ice_status 2446 ice_set_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask, u16 vid) 2447 { 2448 enum { UCAST_FLTR = 1, MCAST_FLTR, BCAST_FLTR }; 2449 struct ice_fltr_list_entry f_list_entry; 2450 struct ice_fltr_info new_fltr; 2451 enum ice_status status = 0; 2452 bool is_tx_fltr; 2453 u16 hw_vsi_id; 2454 int pkt_type; 2455 u8 recipe_id; 2456 2457 if (!ice_is_vsi_valid(hw, vsi_handle)) 2458 return ICE_ERR_PARAM; 2459 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 2460 2461 memset(&new_fltr, 0, sizeof(new_fltr)); 2462 2463 if (promisc_mask & (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX)) { 2464 new_fltr.lkup_type = ICE_SW_LKUP_PROMISC_VLAN; 2465 new_fltr.l_data.mac_vlan.vlan_id = vid; 2466 recipe_id = ICE_SW_LKUP_PROMISC_VLAN; 2467 } else { 2468 new_fltr.lkup_type = ICE_SW_LKUP_PROMISC; 2469 recipe_id = ICE_SW_LKUP_PROMISC; 2470 } 2471 2472 /* Separate filters must be set for each direction/packet type 2473 * combination, so we will loop over the mask value, store the 2474 * individual type, and clear it out in the input mask as it 2475 * is found. 2476 */ 2477 while (promisc_mask) { 2478 u8 *mac_addr; 2479 2480 pkt_type = 0; 2481 is_tx_fltr = false; 2482 2483 if (promisc_mask & ICE_PROMISC_UCAST_RX) { 2484 promisc_mask &= ~ICE_PROMISC_UCAST_RX; 2485 pkt_type = UCAST_FLTR; 2486 } else if (promisc_mask & ICE_PROMISC_UCAST_TX) { 2487 promisc_mask &= ~ICE_PROMISC_UCAST_TX; 2488 pkt_type = UCAST_FLTR; 2489 is_tx_fltr = true; 2490 } else if (promisc_mask & ICE_PROMISC_MCAST_RX) { 2491 promisc_mask &= ~ICE_PROMISC_MCAST_RX; 2492 pkt_type = MCAST_FLTR; 2493 } else if (promisc_mask & ICE_PROMISC_MCAST_TX) { 2494 promisc_mask &= ~ICE_PROMISC_MCAST_TX; 2495 pkt_type = MCAST_FLTR; 2496 is_tx_fltr = true; 2497 } else if (promisc_mask & ICE_PROMISC_BCAST_RX) { 2498 promisc_mask &= ~ICE_PROMISC_BCAST_RX; 2499 pkt_type = BCAST_FLTR; 2500 } else if (promisc_mask & ICE_PROMISC_BCAST_TX) { 2501 promisc_mask &= ~ICE_PROMISC_BCAST_TX; 2502 pkt_type = BCAST_FLTR; 2503 is_tx_fltr = true; 2504 } 2505 2506 /* Check for VLAN promiscuous flag */ 2507 if (promisc_mask & ICE_PROMISC_VLAN_RX) { 2508 promisc_mask &= ~ICE_PROMISC_VLAN_RX; 2509 } else if (promisc_mask & ICE_PROMISC_VLAN_TX) { 2510 promisc_mask &= ~ICE_PROMISC_VLAN_TX; 2511 is_tx_fltr = true; 2512 } 2513 2514 /* Set filter DA based on packet type */ 2515 mac_addr = new_fltr.l_data.mac.mac_addr; 2516 if (pkt_type == BCAST_FLTR) { 2517 eth_broadcast_addr(mac_addr); 2518 } else if (pkt_type == MCAST_FLTR || 2519 pkt_type == UCAST_FLTR) { 2520 /* Use the dummy ether header DA */ 2521 ether_addr_copy(mac_addr, dummy_eth_header); 2522 if (pkt_type == MCAST_FLTR) 2523 mac_addr[0] |= 0x1; /* Set multicast bit */ 2524 } 2525 2526 /* Need to reset this to zero for all iterations */ 2527 new_fltr.flag = 0; 2528 if (is_tx_fltr) { 2529 new_fltr.flag |= ICE_FLTR_TX; 2530 new_fltr.src = hw_vsi_id; 2531 } else { 2532 new_fltr.flag |= ICE_FLTR_RX; 2533 new_fltr.src = hw->port_info->lport; 2534 } 2535 2536 new_fltr.fltr_act = ICE_FWD_TO_VSI; 2537 new_fltr.vsi_handle = vsi_handle; 2538 new_fltr.fwd_id.hw_vsi_id = hw_vsi_id; 2539 f_list_entry.fltr_info = new_fltr; 2540 2541 status = ice_add_rule_internal(hw, recipe_id, &f_list_entry); 2542 if (status) 2543 goto set_promisc_exit; 2544 } 2545 2546 set_promisc_exit: 2547 return status; 2548 } 2549 2550 /** 2551 * ice_set_vlan_vsi_promisc 2552 * @hw: pointer to the hardware structure 2553 * @vsi_handle: VSI handle to configure 2554 * @promisc_mask: mask of promiscuous config bits 2555 * @rm_vlan_promisc: Clear VLANs VSI promisc mode 2556 * 2557 * Configure VSI with all associated VLANs to given promiscuous mode(s) 2558 */ 2559 enum ice_status 2560 ice_set_vlan_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask, 2561 bool rm_vlan_promisc) 2562 { 2563 struct ice_switch_info *sw = hw->switch_info; 2564 struct ice_fltr_list_entry *list_itr, *tmp; 2565 struct list_head vsi_list_head; 2566 struct list_head *vlan_head; 2567 struct mutex *vlan_lock; /* Lock to protect filter rule list */ 2568 enum ice_status status; 2569 u16 vlan_id; 2570 2571 INIT_LIST_HEAD(&vsi_list_head); 2572 vlan_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock; 2573 vlan_head = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rules; 2574 mutex_lock(vlan_lock); 2575 status = ice_add_to_vsi_fltr_list(hw, vsi_handle, vlan_head, 2576 &vsi_list_head); 2577 mutex_unlock(vlan_lock); 2578 if (status) 2579 goto free_fltr_list; 2580 2581 list_for_each_entry(list_itr, &vsi_list_head, list_entry) { 2582 vlan_id = list_itr->fltr_info.l_data.vlan.vlan_id; 2583 if (rm_vlan_promisc) 2584 status = ice_clear_vsi_promisc(hw, vsi_handle, 2585 promisc_mask, vlan_id); 2586 else 2587 status = ice_set_vsi_promisc(hw, vsi_handle, 2588 promisc_mask, vlan_id); 2589 if (status) 2590 break; 2591 } 2592 2593 free_fltr_list: 2594 list_for_each_entry_safe(list_itr, tmp, &vsi_list_head, list_entry) { 2595 list_del(&list_itr->list_entry); 2596 devm_kfree(ice_hw_to_dev(hw), list_itr); 2597 } 2598 return status; 2599 } 2600 2601 /** 2602 * ice_remove_vsi_lkup_fltr - Remove lookup type filters for a VSI 2603 * @hw: pointer to the hardware structure 2604 * @vsi_handle: VSI handle to remove filters from 2605 * @lkup: switch rule filter lookup type 2606 */ 2607 static void 2608 ice_remove_vsi_lkup_fltr(struct ice_hw *hw, u16 vsi_handle, 2609 enum ice_sw_lkup_type lkup) 2610 { 2611 struct ice_switch_info *sw = hw->switch_info; 2612 struct ice_fltr_list_entry *fm_entry; 2613 struct list_head remove_list_head; 2614 struct list_head *rule_head; 2615 struct ice_fltr_list_entry *tmp; 2616 struct mutex *rule_lock; /* Lock to protect filter rule list */ 2617 enum ice_status status; 2618 2619 INIT_LIST_HEAD(&remove_list_head); 2620 rule_lock = &sw->recp_list[lkup].filt_rule_lock; 2621 rule_head = &sw->recp_list[lkup].filt_rules; 2622 mutex_lock(rule_lock); 2623 status = ice_add_to_vsi_fltr_list(hw, vsi_handle, rule_head, 2624 &remove_list_head); 2625 mutex_unlock(rule_lock); 2626 if (status) 2627 goto free_fltr_list; 2628 2629 switch (lkup) { 2630 case ICE_SW_LKUP_MAC: 2631 ice_remove_mac(hw, &remove_list_head); 2632 break; 2633 case ICE_SW_LKUP_VLAN: 2634 ice_remove_vlan(hw, &remove_list_head); 2635 break; 2636 case ICE_SW_LKUP_PROMISC: 2637 case ICE_SW_LKUP_PROMISC_VLAN: 2638 ice_remove_promisc(hw, lkup, &remove_list_head); 2639 break; 2640 case ICE_SW_LKUP_MAC_VLAN: 2641 case ICE_SW_LKUP_ETHERTYPE: 2642 case ICE_SW_LKUP_ETHERTYPE_MAC: 2643 case ICE_SW_LKUP_DFLT: 2644 case ICE_SW_LKUP_LAST: 2645 default: 2646 ice_debug(hw, ICE_DBG_SW, "Unsupported lookup type %d\n", lkup); 2647 break; 2648 } 2649 2650 free_fltr_list: 2651 list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) { 2652 list_del(&fm_entry->list_entry); 2653 devm_kfree(ice_hw_to_dev(hw), fm_entry); 2654 } 2655 } 2656 2657 /** 2658 * ice_remove_vsi_fltr - Remove all filters for a VSI 2659 * @hw: pointer to the hardware structure 2660 * @vsi_handle: VSI handle to remove filters from 2661 */ 2662 void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle) 2663 { 2664 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_MAC); 2665 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_MAC_VLAN); 2666 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC); 2667 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_VLAN); 2668 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_DFLT); 2669 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_ETHERTYPE); 2670 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_ETHERTYPE_MAC); 2671 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC_VLAN); 2672 } 2673 2674 /** 2675 * ice_alloc_res_cntr - allocating resource counter 2676 * @hw: pointer to the hardware structure 2677 * @type: type of resource 2678 * @alloc_shared: if set it is shared else dedicated 2679 * @num_items: number of entries requested for FD resource type 2680 * @counter_id: counter index returned by AQ call 2681 */ 2682 enum ice_status 2683 ice_alloc_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items, 2684 u16 *counter_id) 2685 { 2686 struct ice_aqc_alloc_free_res_elem *buf; 2687 enum ice_status status; 2688 u16 buf_len; 2689 2690 /* Allocate resource */ 2691 buf_len = struct_size(buf, elem, 1); 2692 buf = kzalloc(buf_len, GFP_KERNEL); 2693 if (!buf) 2694 return ICE_ERR_NO_MEMORY; 2695 2696 buf->num_elems = cpu_to_le16(num_items); 2697 buf->res_type = cpu_to_le16(((type << ICE_AQC_RES_TYPE_S) & 2698 ICE_AQC_RES_TYPE_M) | alloc_shared); 2699 2700 status = ice_aq_alloc_free_res(hw, 1, buf, buf_len, 2701 ice_aqc_opc_alloc_res, NULL); 2702 if (status) 2703 goto exit; 2704 2705 *counter_id = le16_to_cpu(buf->elem[0].e.sw_resp); 2706 2707 exit: 2708 kfree(buf); 2709 return status; 2710 } 2711 2712 /** 2713 * ice_free_res_cntr - free resource counter 2714 * @hw: pointer to the hardware structure 2715 * @type: type of resource 2716 * @alloc_shared: if set it is shared else dedicated 2717 * @num_items: number of entries to be freed for FD resource type 2718 * @counter_id: counter ID resource which needs to be freed 2719 */ 2720 enum ice_status 2721 ice_free_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items, 2722 u16 counter_id) 2723 { 2724 struct ice_aqc_alloc_free_res_elem *buf; 2725 enum ice_status status; 2726 u16 buf_len; 2727 2728 /* Free resource */ 2729 buf_len = struct_size(buf, elem, 1); 2730 buf = kzalloc(buf_len, GFP_KERNEL); 2731 if (!buf) 2732 return ICE_ERR_NO_MEMORY; 2733 2734 buf->num_elems = cpu_to_le16(num_items); 2735 buf->res_type = cpu_to_le16(((type << ICE_AQC_RES_TYPE_S) & 2736 ICE_AQC_RES_TYPE_M) | alloc_shared); 2737 buf->elem[0].e.sw_resp = cpu_to_le16(counter_id); 2738 2739 status = ice_aq_alloc_free_res(hw, 1, buf, buf_len, 2740 ice_aqc_opc_free_res, NULL); 2741 if (status) 2742 ice_debug(hw, ICE_DBG_SW, "counter resource could not be freed\n"); 2743 2744 kfree(buf); 2745 return status; 2746 } 2747 2748 /** 2749 * ice_replay_vsi_fltr - Replay filters for requested VSI 2750 * @hw: pointer to the hardware structure 2751 * @vsi_handle: driver VSI handle 2752 * @recp_id: Recipe ID for which rules need to be replayed 2753 * @list_head: list for which filters need to be replayed 2754 * 2755 * Replays the filter of recipe recp_id for a VSI represented via vsi_handle. 2756 * It is required to pass valid VSI handle. 2757 */ 2758 static enum ice_status 2759 ice_replay_vsi_fltr(struct ice_hw *hw, u16 vsi_handle, u8 recp_id, 2760 struct list_head *list_head) 2761 { 2762 struct ice_fltr_mgmt_list_entry *itr; 2763 enum ice_status status = 0; 2764 u16 hw_vsi_id; 2765 2766 if (list_empty(list_head)) 2767 return status; 2768 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); 2769 2770 list_for_each_entry(itr, list_head, list_entry) { 2771 struct ice_fltr_list_entry f_entry; 2772 2773 f_entry.fltr_info = itr->fltr_info; 2774 if (itr->vsi_count < 2 && recp_id != ICE_SW_LKUP_VLAN && 2775 itr->fltr_info.vsi_handle == vsi_handle) { 2776 /* update the src in case it is VSI num */ 2777 if (f_entry.fltr_info.src_id == ICE_SRC_ID_VSI) 2778 f_entry.fltr_info.src = hw_vsi_id; 2779 status = ice_add_rule_internal(hw, recp_id, &f_entry); 2780 if (status) 2781 goto end; 2782 continue; 2783 } 2784 if (!itr->vsi_list_info || 2785 !test_bit(vsi_handle, itr->vsi_list_info->vsi_map)) 2786 continue; 2787 /* Clearing it so that the logic can add it back */ 2788 clear_bit(vsi_handle, itr->vsi_list_info->vsi_map); 2789 f_entry.fltr_info.vsi_handle = vsi_handle; 2790 f_entry.fltr_info.fltr_act = ICE_FWD_TO_VSI; 2791 /* update the src in case it is VSI num */ 2792 if (f_entry.fltr_info.src_id == ICE_SRC_ID_VSI) 2793 f_entry.fltr_info.src = hw_vsi_id; 2794 if (recp_id == ICE_SW_LKUP_VLAN) 2795 status = ice_add_vlan_internal(hw, &f_entry); 2796 else 2797 status = ice_add_rule_internal(hw, recp_id, &f_entry); 2798 if (status) 2799 goto end; 2800 } 2801 end: 2802 return status; 2803 } 2804 2805 /** 2806 * ice_replay_vsi_all_fltr - replay all filters stored in bookkeeping lists 2807 * @hw: pointer to the hardware structure 2808 * @vsi_handle: driver VSI handle 2809 * 2810 * Replays filters for requested VSI via vsi_handle. 2811 */ 2812 enum ice_status ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle) 2813 { 2814 struct ice_switch_info *sw = hw->switch_info; 2815 enum ice_status status = 0; 2816 u8 i; 2817 2818 for (i = 0; i < ICE_SW_LKUP_LAST; i++) { 2819 struct list_head *head; 2820 2821 head = &sw->recp_list[i].filt_replay_rules; 2822 status = ice_replay_vsi_fltr(hw, vsi_handle, i, head); 2823 if (status) 2824 return status; 2825 } 2826 return status; 2827 } 2828 2829 /** 2830 * ice_rm_all_sw_replay_rule_info - deletes filter replay rules 2831 * @hw: pointer to the HW struct 2832 * 2833 * Deletes the filter replay rules. 2834 */ 2835 void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw) 2836 { 2837 struct ice_switch_info *sw = hw->switch_info; 2838 u8 i; 2839 2840 if (!sw) 2841 return; 2842 2843 for (i = 0; i < ICE_SW_LKUP_LAST; i++) { 2844 if (!list_empty(&sw->recp_list[i].filt_replay_rules)) { 2845 struct list_head *l_head; 2846 2847 l_head = &sw->recp_list[i].filt_replay_rules; 2848 ice_rem_sw_rule_info(hw, l_head); 2849 } 2850 } 2851 } 2852