Ghanim Fodi | 79ee8d8 | 2017-02-27 16:39:25 +0200 | [diff] [blame] | 1 | /* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved. |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include "ipa_i.h" |
| 14 | #include "ipahal/ipahal.h" |
| 15 | #include "ipahal/ipahal_fltrt.h" |
| 16 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 17 | #define IPA_FLT_STATUS_OF_ADD_FAILED (-1) |
| 18 | #define IPA_FLT_STATUS_OF_DEL_FAILED (-1) |
| 19 | #define IPA_FLT_STATUS_OF_MDFY_FAILED (-1) |
| 20 | |
| 21 | #define IPA_FLT_GET_RULE_TYPE(__entry) \ |
| 22 | ( \ |
| 23 | ((__entry)->rule.hashable) ? \ |
| 24 | (IPA_RULE_HASHABLE):(IPA_RULE_NON_HASHABLE) \ |
| 25 | ) |
| 26 | |
| 27 | /** |
| 28 | * ipa3_generate_flt_hw_rule() - generates the filtering hardware rule |
| 29 | * @ip: the ip address family type |
| 30 | * @entry: filtering entry |
| 31 | * @buf: output buffer, buf == NULL means |
| 32 | * caller wants to know the size of the rule as seen |
| 33 | * by HW so they did not pass a valid buffer, we will use a |
| 34 | * scratch buffer instead. |
| 35 | * With this scheme we are going to |
| 36 | * generate the rule twice, once to know size using scratch |
| 37 | * buffer and second to write the rule to the actual caller |
| 38 | * supplied buffer which is of required size |
| 39 | * |
| 40 | * Returns: 0 on success, negative on failure |
| 41 | * |
| 42 | * caller needs to hold any needed locks to ensure integrity |
| 43 | * |
| 44 | */ |
| 45 | static int ipa3_generate_flt_hw_rule(enum ipa_ip_type ip, |
| 46 | struct ipa3_flt_entry *entry, u8 *buf) |
| 47 | { |
| 48 | struct ipahal_flt_rule_gen_params gen_params; |
| 49 | int res = 0; |
| 50 | |
| 51 | memset(&gen_params, 0, sizeof(gen_params)); |
| 52 | |
| 53 | gen_params.ipt = ip; |
| 54 | if (entry->rt_tbl) |
| 55 | gen_params.rt_tbl_idx = entry->rt_tbl->idx; |
| 56 | else |
| 57 | gen_params.rt_tbl_idx = entry->rule.rt_tbl_idx; |
| 58 | |
| 59 | gen_params.priority = entry->prio; |
| 60 | gen_params.id = entry->rule_id; |
| 61 | gen_params.rule = (const struct ipa_flt_rule *)&entry->rule; |
| 62 | |
| 63 | res = ipahal_flt_generate_hw_rule(&gen_params, &entry->hw_len, buf); |
| 64 | if (res) |
| 65 | IPAERR("failed to generate flt h/w rule\n"); |
| 66 | |
| 67 | return 0; |
| 68 | } |
| 69 | |
| 70 | static void __ipa_reap_sys_flt_tbls(enum ipa_ip_type ip, enum ipa_rule_type rlt) |
| 71 | { |
| 72 | struct ipa3_flt_tbl *tbl; |
| 73 | int i; |
| 74 | |
| 75 | IPADBG_LOW("reaping sys flt tbls ip=%d rlt=%d\n", ip, rlt); |
| 76 | |
| 77 | for (i = 0; i < ipa3_ctx->ipa_num_pipes; i++) { |
| 78 | if (!ipa_is_ep_support_flt(i)) |
| 79 | continue; |
| 80 | |
| 81 | tbl = &ipa3_ctx->flt_tbl[i][ip]; |
| 82 | if (tbl->prev_mem[rlt].phys_base) { |
| 83 | IPADBG_LOW("reaping flt tbl (prev) pipe=%d\n", i); |
| 84 | ipahal_free_dma_mem(&tbl->prev_mem[rlt]); |
| 85 | } |
| 86 | |
| 87 | if (list_empty(&tbl->head_flt_rule_list)) { |
| 88 | if (tbl->curr_mem[rlt].phys_base) { |
| 89 | IPADBG_LOW("reaping flt tbl (curr) pipe=%d\n", |
| 90 | i); |
| 91 | ipahal_free_dma_mem(&tbl->curr_mem[rlt]); |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * ipa_prep_flt_tbl_for_cmt() - preparing the flt table for commit |
| 99 | * assign priorities to the rules, calculate their sizes and calculate |
| 100 | * the overall table size |
| 101 | * @ip: the ip address family type |
| 102 | * @tbl: the flt tbl to be prepared |
| 103 | * @pipe_idx: the ep pipe appropriate for the given tbl |
| 104 | * |
| 105 | * Return: 0 on success, negative on failure |
| 106 | */ |
| 107 | static int ipa_prep_flt_tbl_for_cmt(enum ipa_ip_type ip, |
| 108 | struct ipa3_flt_tbl *tbl, int pipe_idx) |
| 109 | { |
| 110 | struct ipa3_flt_entry *entry; |
| 111 | int prio_i; |
| 112 | int max_prio; |
| 113 | u32 hdr_width; |
| 114 | |
| 115 | tbl->sz[IPA_RULE_HASHABLE] = 0; |
| 116 | tbl->sz[IPA_RULE_NON_HASHABLE] = 0; |
| 117 | |
| 118 | max_prio = ipahal_get_rule_max_priority(); |
| 119 | |
| 120 | prio_i = max_prio; |
| 121 | list_for_each_entry(entry, &tbl->head_flt_rule_list, link) { |
| 122 | |
| 123 | if (entry->rule.max_prio) { |
| 124 | entry->prio = max_prio; |
| 125 | } else { |
| 126 | if (ipahal_rule_decrease_priority(&prio_i)) { |
| 127 | IPAERR("cannot decrease rule priority - %d\n", |
| 128 | prio_i); |
| 129 | return -EPERM; |
| 130 | } |
| 131 | entry->prio = prio_i; |
| 132 | } |
| 133 | |
| 134 | if (ipa3_generate_flt_hw_rule(ip, entry, NULL)) { |
| 135 | IPAERR("failed to calculate HW FLT rule size\n"); |
| 136 | return -EPERM; |
| 137 | } |
Gidon Studinski | 3021a6f | 2016-11-10 12:48:48 +0200 | [diff] [blame] | 138 | IPADBG_LOW("pipe %d rule_id(handle) %u hw_len %d priority %u\n", |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 139 | pipe_idx, entry->rule_id, entry->hw_len, entry->prio); |
| 140 | |
| 141 | if (entry->rule.hashable) |
| 142 | tbl->sz[IPA_RULE_HASHABLE] += entry->hw_len; |
| 143 | else |
| 144 | tbl->sz[IPA_RULE_NON_HASHABLE] += entry->hw_len; |
| 145 | } |
| 146 | |
| 147 | if ((tbl->sz[IPA_RULE_HASHABLE] + |
| 148 | tbl->sz[IPA_RULE_NON_HASHABLE]) == 0) { |
| 149 | IPADBG_LOW("flt tbl pipe %d is with zero total size\n", |
| 150 | pipe_idx); |
| 151 | return 0; |
| 152 | } |
| 153 | |
| 154 | hdr_width = ipahal_get_hw_tbl_hdr_width(); |
| 155 | |
| 156 | /* for the header word */ |
| 157 | if (tbl->sz[IPA_RULE_HASHABLE]) |
| 158 | tbl->sz[IPA_RULE_HASHABLE] += hdr_width; |
| 159 | if (tbl->sz[IPA_RULE_NON_HASHABLE]) |
| 160 | tbl->sz[IPA_RULE_NON_HASHABLE] += hdr_width; |
| 161 | |
| 162 | IPADBG_LOW("FLT tbl pipe idx %d hash sz %u non-hash sz %u\n", pipe_idx, |
| 163 | tbl->sz[IPA_RULE_HASHABLE], tbl->sz[IPA_RULE_NON_HASHABLE]); |
| 164 | |
| 165 | return 0; |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * ipa_translate_flt_tbl_to_hw_fmt() - translate the flt driver structures |
| 170 | * (rules and tables) to HW format and fill it in the given buffers |
| 171 | * @ip: the ip address family type |
| 172 | * @rlt: the type of the rules to translate (hashable or non-hashable) |
| 173 | * @base: the rules body buffer to be filled |
| 174 | * @hdr: the rules header (addresses/offsets) buffer to be filled |
| 175 | * @body_ofst: the offset of the rules body from the rules header at |
| 176 | * ipa sram |
| 177 | * |
| 178 | * Returns: 0 on success, negative on failure |
| 179 | * |
| 180 | * caller needs to hold any needed locks to ensure integrity |
| 181 | * |
| 182 | */ |
| 183 | static int ipa_translate_flt_tbl_to_hw_fmt(enum ipa_ip_type ip, |
| 184 | enum ipa_rule_type rlt, u8 *base, u8 *hdr, u32 body_ofst) |
| 185 | { |
| 186 | u64 offset; |
| 187 | u8 *body_i; |
| 188 | int res; |
| 189 | struct ipa3_flt_entry *entry; |
| 190 | u8 *tbl_mem_buf; |
| 191 | struct ipa_mem_buffer tbl_mem; |
| 192 | struct ipa3_flt_tbl *tbl; |
| 193 | int i; |
| 194 | int hdr_idx = 0; |
| 195 | |
| 196 | body_i = base; |
| 197 | for (i = 0; i < ipa3_ctx->ipa_num_pipes; i++) { |
| 198 | if (!ipa_is_ep_support_flt(i)) |
| 199 | continue; |
| 200 | tbl = &ipa3_ctx->flt_tbl[i][ip]; |
| 201 | if (tbl->sz[rlt] == 0) { |
| 202 | hdr_idx++; |
| 203 | continue; |
| 204 | } |
| 205 | if (tbl->in_sys[rlt]) { |
| 206 | /* only body (no header) */ |
| 207 | tbl_mem.size = tbl->sz[rlt] - |
| 208 | ipahal_get_hw_tbl_hdr_width(); |
| 209 | if (ipahal_fltrt_allocate_hw_sys_tbl(&tbl_mem)) { |
| 210 | IPAERR("fail to alloc sys tbl of size %d\n", |
| 211 | tbl_mem.size); |
| 212 | goto err; |
| 213 | } |
| 214 | |
| 215 | if (ipahal_fltrt_write_addr_to_hdr(tbl_mem.phys_base, |
| 216 | hdr, hdr_idx, true)) { |
| 217 | IPAERR("fail to wrt sys tbl addr to hdr\n"); |
| 218 | goto hdr_update_fail; |
| 219 | } |
| 220 | |
| 221 | tbl_mem_buf = tbl_mem.base; |
| 222 | |
| 223 | /* generate the rule-set */ |
| 224 | list_for_each_entry(entry, &tbl->head_flt_rule_list, |
| 225 | link) { |
| 226 | if (IPA_FLT_GET_RULE_TYPE(entry) != rlt) |
| 227 | continue; |
| 228 | res = ipa3_generate_flt_hw_rule( |
| 229 | ip, entry, tbl_mem_buf); |
| 230 | if (res) { |
| 231 | IPAERR("failed to gen HW FLT rule\n"); |
| 232 | goto hdr_update_fail; |
| 233 | } |
| 234 | tbl_mem_buf += entry->hw_len; |
| 235 | } |
| 236 | |
| 237 | if (tbl->curr_mem[rlt].phys_base) { |
| 238 | WARN_ON(tbl->prev_mem[rlt].phys_base); |
| 239 | tbl->prev_mem[rlt] = tbl->curr_mem[rlt]; |
| 240 | } |
| 241 | tbl->curr_mem[rlt] = tbl_mem; |
| 242 | } else { |
| 243 | offset = body_i - base + body_ofst; |
| 244 | |
| 245 | /* update the hdr at the right index */ |
| 246 | if (ipahal_fltrt_write_addr_to_hdr(offset, hdr, |
| 247 | hdr_idx, true)) { |
| 248 | IPAERR("fail to wrt lcl tbl ofst to hdr\n"); |
| 249 | goto hdr_update_fail; |
| 250 | } |
| 251 | |
| 252 | /* generate the rule-set */ |
| 253 | list_for_each_entry(entry, &tbl->head_flt_rule_list, |
| 254 | link) { |
| 255 | if (IPA_FLT_GET_RULE_TYPE(entry) != rlt) |
| 256 | continue; |
| 257 | res = ipa3_generate_flt_hw_rule( |
| 258 | ip, entry, body_i); |
| 259 | if (res) { |
| 260 | IPAERR("failed to gen HW FLT rule\n"); |
| 261 | goto err; |
| 262 | } |
| 263 | body_i += entry->hw_len; |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * advance body_i to next table alignment as local |
| 268 | * tables are order back-to-back |
| 269 | */ |
| 270 | body_i += ipahal_get_lcl_tbl_addr_alignment(); |
| 271 | body_i = (u8 *)((long)body_i & |
| 272 | ~ipahal_get_lcl_tbl_addr_alignment()); |
| 273 | } |
| 274 | hdr_idx++; |
| 275 | } |
| 276 | |
| 277 | return 0; |
| 278 | |
| 279 | hdr_update_fail: |
| 280 | ipahal_free_dma_mem(&tbl_mem); |
| 281 | err: |
| 282 | return -EPERM; |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * ipa_generate_flt_hw_tbl_img() - generates the flt hw tbls. |
| 287 | * headers and bodies are being created into buffers that will be filled into |
| 288 | * the local memory (sram) |
| 289 | * @ip: the ip address family type |
| 290 | * @alloc_params: In and Out parameters for the allocations of the buffers |
| 291 | * 4 buffers: hdr and bdy, each hashable and non-hashable |
| 292 | * |
| 293 | * Return: 0 on success, negative on failure |
| 294 | */ |
| 295 | static int ipa_generate_flt_hw_tbl_img(enum ipa_ip_type ip, |
| 296 | struct ipahal_fltrt_alloc_imgs_params *alloc_params) |
| 297 | { |
| 298 | u32 hash_bdy_start_ofst, nhash_bdy_start_ofst; |
| 299 | int rc = 0; |
| 300 | |
| 301 | if (ip == IPA_IP_v4) { |
| 302 | nhash_bdy_start_ofst = IPA_MEM_PART(apps_v4_flt_nhash_ofst) - |
| 303 | IPA_MEM_PART(v4_flt_nhash_ofst); |
| 304 | hash_bdy_start_ofst = IPA_MEM_PART(apps_v4_flt_hash_ofst) - |
| 305 | IPA_MEM_PART(v4_flt_hash_ofst); |
| 306 | } else { |
| 307 | nhash_bdy_start_ofst = IPA_MEM_PART(apps_v6_flt_nhash_ofst) - |
| 308 | IPA_MEM_PART(v6_flt_nhash_ofst); |
| 309 | hash_bdy_start_ofst = IPA_MEM_PART(apps_v6_flt_hash_ofst) - |
| 310 | IPA_MEM_PART(v6_flt_hash_ofst); |
| 311 | } |
| 312 | |
| 313 | if (ipahal_fltrt_allocate_hw_tbl_imgs(alloc_params)) { |
| 314 | IPAERR("fail to allocate FLT HW TBL images. IP %d\n", ip); |
| 315 | rc = -ENOMEM; |
| 316 | goto allocate_failed; |
| 317 | } |
| 318 | |
| 319 | if (ipa_translate_flt_tbl_to_hw_fmt(ip, IPA_RULE_HASHABLE, |
| 320 | alloc_params->hash_bdy.base, alloc_params->hash_hdr.base, |
| 321 | hash_bdy_start_ofst)) { |
| 322 | IPAERR("fail to translate hashable flt tbls to hw format\n"); |
| 323 | rc = -EPERM; |
| 324 | goto translate_fail; |
| 325 | } |
| 326 | if (ipa_translate_flt_tbl_to_hw_fmt(ip, IPA_RULE_NON_HASHABLE, |
| 327 | alloc_params->nhash_bdy.base, alloc_params->nhash_hdr.base, |
| 328 | nhash_bdy_start_ofst)) { |
| 329 | IPAERR("fail to translate non-hash flt tbls to hw format\n"); |
| 330 | rc = -EPERM; |
| 331 | goto translate_fail; |
| 332 | } |
| 333 | |
| 334 | return rc; |
| 335 | |
| 336 | translate_fail: |
| 337 | if (alloc_params->hash_hdr.size) |
| 338 | ipahal_free_dma_mem(&alloc_params->hash_hdr); |
| 339 | ipahal_free_dma_mem(&alloc_params->nhash_hdr); |
| 340 | if (alloc_params->hash_bdy.size) |
| 341 | ipahal_free_dma_mem(&alloc_params->hash_bdy); |
| 342 | if (alloc_params->nhash_bdy.size) |
| 343 | ipahal_free_dma_mem(&alloc_params->nhash_bdy); |
| 344 | allocate_failed: |
| 345 | return rc; |
| 346 | } |
| 347 | |
| 348 | /** |
| 349 | * ipa_flt_valid_lcl_tbl_size() - validate if the space allocated for flt |
| 350 | * tbl bodies at the sram is enough for the commit |
| 351 | * @ipt: the ip address family type |
| 352 | * @rlt: the rule type (hashable or non-hashable) |
| 353 | * |
| 354 | * Return: true if enough space available or false in other cases |
| 355 | */ |
| 356 | static bool ipa_flt_valid_lcl_tbl_size(enum ipa_ip_type ipt, |
| 357 | enum ipa_rule_type rlt, struct ipa_mem_buffer *bdy) |
| 358 | { |
| 359 | u16 avail; |
| 360 | |
| 361 | if (!bdy) { |
| 362 | IPAERR("Bad parameters, bdy = NULL\n"); |
| 363 | return false; |
| 364 | } |
| 365 | |
| 366 | if (ipt == IPA_IP_v4) |
| 367 | avail = (rlt == IPA_RULE_HASHABLE) ? |
| 368 | IPA_MEM_PART(apps_v4_flt_hash_size) : |
| 369 | IPA_MEM_PART(apps_v4_flt_nhash_size); |
| 370 | else |
| 371 | avail = (rlt == IPA_RULE_HASHABLE) ? |
| 372 | IPA_MEM_PART(apps_v6_flt_hash_size) : |
| 373 | IPA_MEM_PART(apps_v6_flt_nhash_size); |
| 374 | |
| 375 | if (bdy->size <= avail) |
| 376 | return true; |
| 377 | |
| 378 | IPAERR("tbl too big, needed %d avail %d ipt %d rlt %d\n", |
| 379 | bdy->size, avail, ipt, rlt); |
| 380 | return false; |
| 381 | } |
| 382 | |
| 383 | /** |
| 384 | * ipa_flt_alloc_cmd_buffers() - alloc descriptors and imm cmds |
| 385 | * payload pointers buffers for headers and bodies of flt structure |
| 386 | * as well as place for flush imm. |
| 387 | * @ipt: the ip address family type |
| 388 | * @desc: [OUT] descriptor buffer |
| 389 | * @cmd: [OUT] imm commands payload pointers buffer |
| 390 | * |
| 391 | * Return: 0 on success, negative on failure |
| 392 | */ |
| 393 | static int ipa_flt_alloc_cmd_buffers(enum ipa_ip_type ip, |
| 394 | struct ipa3_desc **desc, struct ipahal_imm_cmd_pyld ***cmd_pyld) |
| 395 | { |
| 396 | u16 entries; |
| 397 | |
| 398 | /* +3: 2 for bodies (hashable and non-hashable) and 1 for flushing */ |
| 399 | entries = (ipa3_ctx->ep_flt_num) * 2 + 3; |
| 400 | |
| 401 | *desc = kcalloc(entries, sizeof(**desc), GFP_ATOMIC); |
| 402 | if (*desc == NULL) { |
| 403 | IPAERR("fail to alloc desc blob ip %d\n", ip); |
| 404 | goto fail_desc_alloc; |
| 405 | } |
| 406 | |
| 407 | *cmd_pyld = kcalloc(entries, sizeof(**cmd_pyld), GFP_ATOMIC); |
| 408 | if (*cmd_pyld == NULL) { |
| 409 | IPAERR("fail to alloc cmd pyld blob ip %d\n", ip); |
| 410 | goto fail_cmd_alloc; |
| 411 | } |
| 412 | |
| 413 | return 0; |
| 414 | |
| 415 | fail_cmd_alloc: |
| 416 | kfree(*desc); |
| 417 | fail_desc_alloc: |
| 418 | return -ENOMEM; |
| 419 | } |
| 420 | |
| 421 | /** |
| 422 | * ipa_flt_skip_pipe_config() - skip ep flt configuration or not? |
| 423 | * will skip according to pre-configuration or modem pipes |
| 424 | * @pipe: the EP pipe index |
| 425 | * |
| 426 | * Return: true if to skip, false otherwize |
| 427 | */ |
| 428 | static bool ipa_flt_skip_pipe_config(int pipe) |
| 429 | { |
| 430 | if (ipa_is_modem_pipe(pipe)) { |
| 431 | IPADBG_LOW("skip %d - modem owned pipe\n", pipe); |
| 432 | return true; |
| 433 | } |
| 434 | |
| 435 | if (ipa3_ctx->skip_ep_cfg_shadow[pipe]) { |
| 436 | IPADBG_LOW("skip %d\n", pipe); |
| 437 | return true; |
| 438 | } |
| 439 | |
Ghanim Fodi | c6b6749 | 2017-03-15 14:19:56 +0200 | [diff] [blame] | 440 | if ((ipa3_get_ep_mapping(IPA_CLIENT_APPS_WAN_PROD) == pipe |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 441 | && ipa3_ctx->modem_cfg_emb_pipe_flt)) { |
| 442 | IPADBG_LOW("skip %d\n", pipe); |
| 443 | return true; |
| 444 | } |
| 445 | |
| 446 | return false; |
| 447 | } |
| 448 | |
| 449 | /** |
| 450 | * __ipa_commit_flt_v3() - commit flt tables to the hw |
| 451 | * commit the headers and the bodies if are local with internal cache flushing. |
| 452 | * The headers (and local bodies) will first be created into dma buffers and |
| 453 | * then written via IC to the SRAM |
| 454 | * @ipt: the ip address family type |
| 455 | * |
| 456 | * Return: 0 on success, negative on failure |
| 457 | */ |
| 458 | int __ipa_commit_flt_v3(enum ipa_ip_type ip) |
| 459 | { |
| 460 | struct ipahal_fltrt_alloc_imgs_params alloc_params; |
| 461 | int rc = 0; |
| 462 | struct ipa3_desc *desc; |
| 463 | struct ipahal_imm_cmd_register_write reg_write_cmd = {0}; |
| 464 | struct ipahal_imm_cmd_dma_shared_mem mem_cmd = {0}; |
| 465 | struct ipahal_imm_cmd_pyld **cmd_pyld; |
| 466 | int num_cmd = 0; |
| 467 | int i; |
| 468 | int hdr_idx; |
| 469 | u32 lcl_hash_hdr, lcl_nhash_hdr; |
| 470 | u32 lcl_hash_bdy, lcl_nhash_bdy; |
| 471 | bool lcl_hash, lcl_nhash; |
| 472 | struct ipahal_reg_fltrt_hash_flush flush; |
| 473 | struct ipahal_reg_valmask valmask; |
| 474 | u32 tbl_hdr_width; |
| 475 | struct ipa3_flt_tbl *tbl; |
| 476 | |
| 477 | tbl_hdr_width = ipahal_get_hw_tbl_hdr_width(); |
| 478 | memset(&alloc_params, 0, sizeof(alloc_params)); |
| 479 | alloc_params.ipt = ip; |
| 480 | alloc_params.tbls_num = ipa3_ctx->ep_flt_num; |
| 481 | |
| 482 | if (ip == IPA_IP_v4) { |
| 483 | lcl_hash_hdr = ipa3_ctx->smem_restricted_bytes + |
| 484 | IPA_MEM_PART(v4_flt_hash_ofst) + |
| 485 | tbl_hdr_width; /* to skip the bitmap */ |
| 486 | lcl_nhash_hdr = ipa3_ctx->smem_restricted_bytes + |
| 487 | IPA_MEM_PART(v4_flt_nhash_ofst) + |
| 488 | tbl_hdr_width; /* to skip the bitmap */ |
| 489 | lcl_hash_bdy = ipa3_ctx->smem_restricted_bytes + |
| 490 | IPA_MEM_PART(apps_v4_flt_hash_ofst); |
| 491 | lcl_nhash_bdy = ipa3_ctx->smem_restricted_bytes + |
| 492 | IPA_MEM_PART(apps_v4_flt_nhash_ofst); |
| 493 | lcl_hash = ipa3_ctx->ip4_flt_tbl_hash_lcl; |
| 494 | lcl_nhash = ipa3_ctx->ip4_flt_tbl_nhash_lcl; |
| 495 | } else { |
| 496 | lcl_hash_hdr = ipa3_ctx->smem_restricted_bytes + |
| 497 | IPA_MEM_PART(v6_flt_hash_ofst) + |
| 498 | tbl_hdr_width; /* to skip the bitmap */ |
| 499 | lcl_nhash_hdr = ipa3_ctx->smem_restricted_bytes + |
| 500 | IPA_MEM_PART(v6_flt_nhash_ofst) + |
| 501 | tbl_hdr_width; /* to skip the bitmap */ |
| 502 | lcl_hash_bdy = ipa3_ctx->smem_restricted_bytes + |
| 503 | IPA_MEM_PART(apps_v6_flt_hash_ofst); |
| 504 | lcl_nhash_bdy = ipa3_ctx->smem_restricted_bytes + |
| 505 | IPA_MEM_PART(apps_v6_flt_nhash_ofst); |
| 506 | lcl_hash = ipa3_ctx->ip6_flt_tbl_hash_lcl; |
| 507 | lcl_nhash = ipa3_ctx->ip6_flt_tbl_nhash_lcl; |
| 508 | } |
| 509 | |
| 510 | for (i = 0; i < ipa3_ctx->ipa_num_pipes; i++) { |
| 511 | if (!ipa_is_ep_support_flt(i)) |
| 512 | continue; |
| 513 | tbl = &ipa3_ctx->flt_tbl[i][ip]; |
| 514 | if (ipa_prep_flt_tbl_for_cmt(ip, tbl, i)) { |
| 515 | rc = -EPERM; |
| 516 | goto prep_failed; |
| 517 | } |
| 518 | if (!tbl->in_sys[IPA_RULE_HASHABLE] && |
| 519 | tbl->sz[IPA_RULE_HASHABLE]) { |
| 520 | alloc_params.num_lcl_hash_tbls++; |
| 521 | alloc_params.total_sz_lcl_hash_tbls += |
| 522 | tbl->sz[IPA_RULE_HASHABLE]; |
| 523 | alloc_params.total_sz_lcl_hash_tbls -= tbl_hdr_width; |
| 524 | |
| 525 | } |
| 526 | if (!tbl->in_sys[IPA_RULE_NON_HASHABLE] && |
| 527 | tbl->sz[IPA_RULE_NON_HASHABLE]) { |
| 528 | alloc_params.num_lcl_nhash_tbls++; |
| 529 | alloc_params.total_sz_lcl_nhash_tbls += |
| 530 | tbl->sz[IPA_RULE_NON_HASHABLE]; |
| 531 | alloc_params.total_sz_lcl_nhash_tbls -= tbl_hdr_width; |
| 532 | } |
| 533 | } |
| 534 | |
| 535 | if (ipa_generate_flt_hw_tbl_img(ip, &alloc_params)) { |
| 536 | IPAERR("fail to generate FLT HW TBL image. IP %d\n", ip); |
| 537 | rc = -EFAULT; |
| 538 | goto prep_failed; |
| 539 | } |
| 540 | |
| 541 | if (!ipa_flt_valid_lcl_tbl_size(ip, IPA_RULE_HASHABLE, |
| 542 | &alloc_params.hash_bdy)) { |
| 543 | rc = -EFAULT; |
| 544 | goto fail_size_valid; |
| 545 | } |
| 546 | if (!ipa_flt_valid_lcl_tbl_size(ip, IPA_RULE_NON_HASHABLE, |
| 547 | &alloc_params.nhash_bdy)) { |
| 548 | rc = -EFAULT; |
| 549 | goto fail_size_valid; |
| 550 | } |
| 551 | |
| 552 | if (ipa_flt_alloc_cmd_buffers(ip, &desc, &cmd_pyld)) { |
| 553 | rc = -ENOMEM; |
| 554 | goto fail_size_valid; |
| 555 | } |
| 556 | |
| 557 | /* flushing ipa internal hashable flt rules cache */ |
| 558 | memset(&flush, 0, sizeof(flush)); |
| 559 | if (ip == IPA_IP_v4) |
| 560 | flush.v4_flt = true; |
| 561 | else |
| 562 | flush.v6_flt = true; |
| 563 | ipahal_get_fltrt_hash_flush_valmask(&flush, &valmask); |
| 564 | reg_write_cmd.skip_pipeline_clear = false; |
| 565 | reg_write_cmd.pipeline_clear_options = IPAHAL_HPS_CLEAR; |
| 566 | reg_write_cmd.offset = ipahal_get_reg_ofst(IPA_FILT_ROUT_HASH_FLUSH); |
| 567 | reg_write_cmd.value = valmask.val; |
| 568 | reg_write_cmd.value_mask = valmask.mask; |
| 569 | cmd_pyld[0] = ipahal_construct_imm_cmd( |
| 570 | IPA_IMM_CMD_REGISTER_WRITE, ®_write_cmd, false); |
| 571 | if (!cmd_pyld[0]) { |
| 572 | IPAERR("fail construct register_write imm cmd: IP %d\n", ip); |
| 573 | rc = -EFAULT; |
| 574 | goto fail_reg_write_construct; |
| 575 | } |
Michael Adisumarta | b5d170f | 2017-05-17 14:34:11 -0700 | [diff] [blame^] | 576 | desc[0].opcode = cmd_pyld[0]->opcode; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 577 | desc[0].pyld = cmd_pyld[0]->data; |
| 578 | desc[0].len = cmd_pyld[0]->len; |
| 579 | desc[0].type = IPA_IMM_CMD_DESC; |
| 580 | num_cmd++; |
| 581 | |
| 582 | hdr_idx = 0; |
| 583 | for (i = 0; i < ipa3_ctx->ipa_num_pipes; i++) { |
| 584 | if (!ipa_is_ep_support_flt(i)) { |
| 585 | IPADBG_LOW("skip %d - not filtering pipe\n", i); |
| 586 | continue; |
| 587 | } |
| 588 | |
| 589 | if (ipa_flt_skip_pipe_config(i)) { |
| 590 | hdr_idx++; |
| 591 | continue; |
| 592 | } |
| 593 | |
| 594 | IPADBG_LOW("Prepare imm cmd for hdr at index %d for pipe %d\n", |
| 595 | hdr_idx, i); |
| 596 | |
| 597 | mem_cmd.is_read = false; |
| 598 | mem_cmd.skip_pipeline_clear = false; |
| 599 | mem_cmd.pipeline_clear_options = IPAHAL_HPS_CLEAR; |
| 600 | mem_cmd.size = tbl_hdr_width; |
| 601 | mem_cmd.system_addr = alloc_params.nhash_hdr.phys_base + |
| 602 | hdr_idx * tbl_hdr_width; |
| 603 | mem_cmd.local_addr = lcl_nhash_hdr + |
| 604 | hdr_idx * tbl_hdr_width; |
| 605 | cmd_pyld[num_cmd] = ipahal_construct_imm_cmd( |
| 606 | IPA_IMM_CMD_DMA_SHARED_MEM, &mem_cmd, false); |
| 607 | if (!cmd_pyld[num_cmd]) { |
| 608 | IPAERR("fail construct dma_shared_mem cmd: IP = %d\n", |
| 609 | ip); |
| 610 | goto fail_imm_cmd_construct; |
| 611 | } |
Michael Adisumarta | b5d170f | 2017-05-17 14:34:11 -0700 | [diff] [blame^] | 612 | desc[num_cmd].opcode = cmd_pyld[num_cmd]->opcode; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 613 | desc[num_cmd].pyld = cmd_pyld[num_cmd]->data; |
| 614 | desc[num_cmd].len = cmd_pyld[num_cmd]->len; |
| 615 | desc[num_cmd++].type = IPA_IMM_CMD_DESC; |
| 616 | |
| 617 | mem_cmd.is_read = false; |
| 618 | mem_cmd.skip_pipeline_clear = false; |
| 619 | mem_cmd.pipeline_clear_options = IPAHAL_HPS_CLEAR; |
| 620 | mem_cmd.size = tbl_hdr_width; |
| 621 | mem_cmd.system_addr = alloc_params.hash_hdr.phys_base + |
| 622 | hdr_idx * tbl_hdr_width; |
| 623 | mem_cmd.local_addr = lcl_hash_hdr + |
| 624 | hdr_idx * tbl_hdr_width; |
| 625 | cmd_pyld[num_cmd] = ipahal_construct_imm_cmd( |
| 626 | IPA_IMM_CMD_DMA_SHARED_MEM, &mem_cmd, false); |
| 627 | if (!cmd_pyld[num_cmd]) { |
| 628 | IPAERR("fail construct dma_shared_mem cmd: IP = %d\n", |
| 629 | ip); |
| 630 | goto fail_imm_cmd_construct; |
| 631 | } |
Michael Adisumarta | b5d170f | 2017-05-17 14:34:11 -0700 | [diff] [blame^] | 632 | desc[num_cmd].opcode = cmd_pyld[num_cmd]->opcode; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 633 | desc[num_cmd].pyld = cmd_pyld[num_cmd]->data; |
| 634 | desc[num_cmd].len = cmd_pyld[num_cmd]->len; |
| 635 | desc[num_cmd++].type = IPA_IMM_CMD_DESC; |
| 636 | |
| 637 | hdr_idx++; |
| 638 | } |
| 639 | |
| 640 | if (lcl_nhash) { |
| 641 | mem_cmd.is_read = false; |
| 642 | mem_cmd.skip_pipeline_clear = false; |
| 643 | mem_cmd.pipeline_clear_options = IPAHAL_HPS_CLEAR; |
| 644 | mem_cmd.size = alloc_params.nhash_bdy.size; |
| 645 | mem_cmd.system_addr = alloc_params.nhash_bdy.phys_base; |
| 646 | mem_cmd.local_addr = lcl_nhash_bdy; |
| 647 | cmd_pyld[num_cmd] = ipahal_construct_imm_cmd( |
| 648 | IPA_IMM_CMD_DMA_SHARED_MEM, &mem_cmd, false); |
| 649 | if (!cmd_pyld[num_cmd]) { |
| 650 | IPAERR("fail construct dma_shared_mem cmd: IP = %d\n", |
| 651 | ip); |
| 652 | goto fail_imm_cmd_construct; |
| 653 | } |
Michael Adisumarta | b5d170f | 2017-05-17 14:34:11 -0700 | [diff] [blame^] | 654 | desc[num_cmd].opcode = cmd_pyld[num_cmd]->opcode; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 655 | desc[num_cmd].pyld = cmd_pyld[num_cmd]->data; |
| 656 | desc[num_cmd].len = cmd_pyld[num_cmd]->len; |
| 657 | desc[num_cmd++].type = IPA_IMM_CMD_DESC; |
| 658 | } |
| 659 | if (lcl_hash) { |
| 660 | mem_cmd.is_read = false; |
| 661 | mem_cmd.skip_pipeline_clear = false; |
| 662 | mem_cmd.pipeline_clear_options = IPAHAL_HPS_CLEAR; |
| 663 | mem_cmd.size = alloc_params.hash_bdy.size; |
| 664 | mem_cmd.system_addr = alloc_params.hash_bdy.phys_base; |
| 665 | mem_cmd.local_addr = lcl_hash_bdy; |
| 666 | cmd_pyld[num_cmd] = ipahal_construct_imm_cmd( |
| 667 | IPA_IMM_CMD_DMA_SHARED_MEM, &mem_cmd, false); |
| 668 | if (!cmd_pyld[num_cmd]) { |
| 669 | IPAERR("fail construct dma_shared_mem cmd: IP = %d\n", |
| 670 | ip); |
| 671 | goto fail_imm_cmd_construct; |
| 672 | } |
Michael Adisumarta | b5d170f | 2017-05-17 14:34:11 -0700 | [diff] [blame^] | 673 | desc[num_cmd].opcode = cmd_pyld[num_cmd]->opcode; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 674 | desc[num_cmd].pyld = cmd_pyld[num_cmd]->data; |
| 675 | desc[num_cmd].len = cmd_pyld[num_cmd]->len; |
| 676 | desc[num_cmd++].type = IPA_IMM_CMD_DESC; |
| 677 | } |
| 678 | |
| 679 | if (ipa3_send_cmd(num_cmd, desc)) { |
| 680 | IPAERR("fail to send immediate command\n"); |
| 681 | rc = -EFAULT; |
| 682 | goto fail_imm_cmd_construct; |
| 683 | } |
| 684 | |
| 685 | IPADBG_LOW("Hashable HEAD\n"); |
| 686 | IPA_DUMP_BUFF(alloc_params.hash_hdr.base, |
| 687 | alloc_params.hash_hdr.phys_base, alloc_params.hash_hdr.size); |
| 688 | |
| 689 | IPADBG_LOW("Non-Hashable HEAD\n"); |
| 690 | IPA_DUMP_BUFF(alloc_params.nhash_hdr.base, |
| 691 | alloc_params.nhash_hdr.phys_base, alloc_params.nhash_hdr.size); |
| 692 | |
| 693 | if (alloc_params.hash_bdy.size) { |
| 694 | IPADBG_LOW("Hashable BODY\n"); |
| 695 | IPA_DUMP_BUFF(alloc_params.hash_bdy.base, |
| 696 | alloc_params.hash_bdy.phys_base, |
| 697 | alloc_params.hash_bdy.size); |
| 698 | } |
| 699 | |
| 700 | if (alloc_params.nhash_bdy.size) { |
| 701 | IPADBG_LOW("Non-Hashable BODY\n"); |
| 702 | IPA_DUMP_BUFF(alloc_params.nhash_bdy.base, |
| 703 | alloc_params.nhash_bdy.phys_base, |
| 704 | alloc_params.nhash_bdy.size); |
| 705 | } |
| 706 | |
| 707 | __ipa_reap_sys_flt_tbls(ip, IPA_RULE_HASHABLE); |
| 708 | __ipa_reap_sys_flt_tbls(ip, IPA_RULE_NON_HASHABLE); |
| 709 | |
| 710 | fail_imm_cmd_construct: |
| 711 | for (i = 0 ; i < num_cmd ; i++) |
| 712 | ipahal_destroy_imm_cmd(cmd_pyld[i]); |
| 713 | fail_reg_write_construct: |
| 714 | kfree(desc); |
| 715 | kfree(cmd_pyld); |
| 716 | fail_size_valid: |
| 717 | if (alloc_params.hash_hdr.size) |
| 718 | ipahal_free_dma_mem(&alloc_params.hash_hdr); |
| 719 | ipahal_free_dma_mem(&alloc_params.nhash_hdr); |
| 720 | if (alloc_params.hash_bdy.size) |
| 721 | ipahal_free_dma_mem(&alloc_params.hash_bdy); |
| 722 | if (alloc_params.nhash_bdy.size) |
| 723 | ipahal_free_dma_mem(&alloc_params.nhash_bdy); |
| 724 | prep_failed: |
| 725 | return rc; |
| 726 | } |
| 727 | |
| 728 | static int __ipa_validate_flt_rule(const struct ipa_flt_rule *rule, |
| 729 | struct ipa3_rt_tbl **rt_tbl, enum ipa_ip_type ip) |
| 730 | { |
| 731 | if (rule->action != IPA_PASS_TO_EXCEPTION) { |
| 732 | if (!rule->eq_attrib_type) { |
| 733 | if (!rule->rt_tbl_hdl) { |
| 734 | IPAERR("invalid RT tbl\n"); |
| 735 | goto error; |
| 736 | } |
| 737 | |
| 738 | *rt_tbl = ipa3_id_find(rule->rt_tbl_hdl); |
| 739 | if (*rt_tbl == NULL) { |
| 740 | IPAERR("RT tbl not found\n"); |
| 741 | goto error; |
| 742 | } |
| 743 | |
| 744 | if ((*rt_tbl)->cookie != IPA_COOKIE) { |
| 745 | IPAERR("RT table cookie is invalid\n"); |
| 746 | goto error; |
| 747 | } |
| 748 | } else { |
| 749 | if (rule->rt_tbl_idx > ((ip == IPA_IP_v4) ? |
| 750 | IPA_MEM_PART(v4_modem_rt_index_hi) : |
| 751 | IPA_MEM_PART(v6_modem_rt_index_hi))) { |
| 752 | IPAERR("invalid RT tbl\n"); |
| 753 | goto error; |
| 754 | } |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | if (rule->rule_id) { |
| 759 | if (!(rule->rule_id & ipahal_get_rule_id_hi_bit())) { |
| 760 | IPAERR("invalid rule_id provided 0x%x\n" |
| 761 | "rule_id with bit 0x%x are auto generated\n", |
| 762 | rule->rule_id, ipahal_get_rule_id_hi_bit()); |
| 763 | goto error; |
| 764 | } |
| 765 | } |
| 766 | |
| 767 | return 0; |
| 768 | |
| 769 | error: |
| 770 | return -EPERM; |
| 771 | } |
| 772 | |
| 773 | static int __ipa_create_flt_entry(struct ipa3_flt_entry **entry, |
| 774 | const struct ipa_flt_rule *rule, struct ipa3_rt_tbl *rt_tbl, |
| 775 | struct ipa3_flt_tbl *tbl) |
| 776 | { |
| 777 | int id; |
| 778 | |
| 779 | *entry = kmem_cache_zalloc(ipa3_ctx->flt_rule_cache, GFP_KERNEL); |
| 780 | if (!*entry) { |
| 781 | IPAERR("failed to alloc FLT rule object\n"); |
| 782 | goto error; |
| 783 | } |
| 784 | INIT_LIST_HEAD(&((*entry)->link)); |
| 785 | (*entry)->rule = *rule; |
| 786 | (*entry)->cookie = IPA_COOKIE; |
| 787 | (*entry)->rt_tbl = rt_tbl; |
| 788 | (*entry)->tbl = tbl; |
| 789 | if (rule->rule_id) { |
| 790 | id = rule->rule_id; |
| 791 | } else { |
| 792 | id = ipa3_alloc_rule_id(&tbl->rule_ids); |
| 793 | if (id < 0) { |
| 794 | IPAERR("failed to allocate rule id\n"); |
| 795 | WARN_ON(1); |
| 796 | goto rule_id_fail; |
| 797 | } |
| 798 | } |
| 799 | (*entry)->rule_id = id; |
| 800 | |
| 801 | return 0; |
| 802 | |
| 803 | rule_id_fail: |
| 804 | kmem_cache_free(ipa3_ctx->flt_rule_cache, *entry); |
| 805 | error: |
| 806 | return -EPERM; |
| 807 | } |
| 808 | |
| 809 | static int __ipa_finish_flt_rule_add(struct ipa3_flt_tbl *tbl, |
| 810 | struct ipa3_flt_entry *entry, u32 *rule_hdl) |
| 811 | { |
| 812 | int id; |
| 813 | |
| 814 | tbl->rule_cnt++; |
| 815 | if (entry->rt_tbl) |
| 816 | entry->rt_tbl->ref_cnt++; |
| 817 | id = ipa3_id_alloc(entry); |
| 818 | if (id < 0) { |
| 819 | IPAERR("failed to add to tree\n"); |
| 820 | WARN_ON(1); |
| 821 | } |
| 822 | *rule_hdl = id; |
| 823 | entry->id = id; |
| 824 | IPADBG_LOW("add flt rule rule_cnt=%d\n", tbl->rule_cnt); |
| 825 | |
| 826 | return 0; |
| 827 | } |
| 828 | |
| 829 | static int __ipa_add_flt_rule(struct ipa3_flt_tbl *tbl, enum ipa_ip_type ip, |
| 830 | const struct ipa_flt_rule *rule, u8 add_rear, |
| 831 | u32 *rule_hdl) |
| 832 | { |
| 833 | struct ipa3_flt_entry *entry; |
| 834 | struct ipa3_rt_tbl *rt_tbl = NULL; |
| 835 | |
| 836 | if (__ipa_validate_flt_rule(rule, &rt_tbl, ip)) |
| 837 | goto error; |
| 838 | |
| 839 | if (__ipa_create_flt_entry(&entry, rule, rt_tbl, tbl)) |
| 840 | goto error; |
| 841 | |
| 842 | if (add_rear) { |
| 843 | if (tbl->sticky_rear) |
| 844 | list_add_tail(&entry->link, |
| 845 | tbl->head_flt_rule_list.prev); |
| 846 | else |
| 847 | list_add_tail(&entry->link, &tbl->head_flt_rule_list); |
| 848 | } else { |
| 849 | list_add(&entry->link, &tbl->head_flt_rule_list); |
| 850 | } |
| 851 | |
| 852 | __ipa_finish_flt_rule_add(tbl, entry, rule_hdl); |
| 853 | |
| 854 | return 0; |
| 855 | |
| 856 | error: |
| 857 | return -EPERM; |
| 858 | } |
| 859 | |
| 860 | static int __ipa_add_flt_rule_after(struct ipa3_flt_tbl *tbl, |
| 861 | const struct ipa_flt_rule *rule, |
| 862 | u32 *rule_hdl, |
| 863 | enum ipa_ip_type ip, |
| 864 | struct ipa3_flt_entry **add_after_entry) |
| 865 | { |
| 866 | struct ipa3_flt_entry *entry; |
| 867 | struct ipa3_rt_tbl *rt_tbl = NULL; |
| 868 | |
| 869 | if (!*add_after_entry) |
| 870 | goto error; |
| 871 | |
| 872 | if (rule == NULL || rule_hdl == NULL) { |
| 873 | IPAERR("bad parms rule=%p rule_hdl=%p\n", rule, |
| 874 | rule_hdl); |
| 875 | goto error; |
| 876 | } |
| 877 | |
| 878 | if (__ipa_validate_flt_rule(rule, &rt_tbl, ip)) |
| 879 | goto error; |
| 880 | |
| 881 | if (__ipa_create_flt_entry(&entry, rule, rt_tbl, tbl)) |
| 882 | goto error; |
| 883 | |
| 884 | list_add(&entry->link, &((*add_after_entry)->link)); |
| 885 | |
| 886 | __ipa_finish_flt_rule_add(tbl, entry, rule_hdl); |
| 887 | |
| 888 | /* |
| 889 | * prepare for next insertion |
| 890 | */ |
| 891 | *add_after_entry = entry; |
| 892 | |
| 893 | return 0; |
| 894 | |
| 895 | error: |
| 896 | *add_after_entry = NULL; |
| 897 | return -EPERM; |
| 898 | } |
| 899 | |
| 900 | static int __ipa_del_flt_rule(u32 rule_hdl) |
| 901 | { |
| 902 | struct ipa3_flt_entry *entry; |
| 903 | int id; |
| 904 | |
| 905 | entry = ipa3_id_find(rule_hdl); |
| 906 | if (entry == NULL) { |
| 907 | IPAERR("lookup failed\n"); |
| 908 | return -EINVAL; |
| 909 | } |
| 910 | |
| 911 | if (entry->cookie != IPA_COOKIE) { |
| 912 | IPAERR("bad params\n"); |
| 913 | return -EINVAL; |
| 914 | } |
| 915 | id = entry->id; |
| 916 | |
| 917 | list_del(&entry->link); |
| 918 | entry->tbl->rule_cnt--; |
| 919 | if (entry->rt_tbl) |
| 920 | entry->rt_tbl->ref_cnt--; |
| 921 | IPADBG("del flt rule rule_cnt=%d rule_id=%d\n", |
| 922 | entry->tbl->rule_cnt, entry->rule_id); |
| 923 | entry->cookie = 0; |
| 924 | /* if rule id was allocated from idr, remove it */ |
| 925 | if (!(entry->rule_id & ipahal_get_rule_id_hi_bit())) |
| 926 | idr_remove(&entry->tbl->rule_ids, entry->rule_id); |
| 927 | |
| 928 | kmem_cache_free(ipa3_ctx->flt_rule_cache, entry); |
| 929 | |
| 930 | /* remove the handle from the database */ |
| 931 | ipa3_id_remove(id); |
| 932 | |
| 933 | return 0; |
| 934 | } |
| 935 | |
| 936 | static int __ipa_mdfy_flt_rule(struct ipa_flt_rule_mdfy *frule, |
| 937 | enum ipa_ip_type ip) |
| 938 | { |
| 939 | struct ipa3_flt_entry *entry; |
| 940 | struct ipa3_rt_tbl *rt_tbl = NULL; |
| 941 | |
| 942 | entry = ipa3_id_find(frule->rule_hdl); |
| 943 | if (entry == NULL) { |
| 944 | IPAERR("lookup failed\n"); |
| 945 | goto error; |
| 946 | } |
| 947 | |
| 948 | if (entry->cookie != IPA_COOKIE) { |
| 949 | IPAERR("bad params\n"); |
| 950 | goto error; |
| 951 | } |
| 952 | |
| 953 | if (entry->rt_tbl) |
| 954 | entry->rt_tbl->ref_cnt--; |
| 955 | |
| 956 | if (frule->rule.action != IPA_PASS_TO_EXCEPTION) { |
| 957 | if (!frule->rule.eq_attrib_type) { |
| 958 | if (!frule->rule.rt_tbl_hdl) { |
| 959 | IPAERR("invalid RT tbl\n"); |
| 960 | goto error; |
| 961 | } |
| 962 | |
| 963 | rt_tbl = ipa3_id_find(frule->rule.rt_tbl_hdl); |
| 964 | if (rt_tbl == NULL) { |
| 965 | IPAERR("RT tbl not found\n"); |
| 966 | goto error; |
| 967 | } |
| 968 | |
| 969 | if (rt_tbl->cookie != IPA_COOKIE) { |
| 970 | IPAERR("RT table cookie is invalid\n"); |
| 971 | goto error; |
| 972 | } |
| 973 | } else { |
| 974 | if (frule->rule.rt_tbl_idx > ((ip == IPA_IP_v4) ? |
| 975 | IPA_MEM_PART(v4_modem_rt_index_hi) : |
| 976 | IPA_MEM_PART(v6_modem_rt_index_hi))) { |
| 977 | IPAERR("invalid RT tbl\n"); |
| 978 | goto error; |
| 979 | } |
| 980 | } |
| 981 | } |
| 982 | |
| 983 | entry->rule = frule->rule; |
| 984 | entry->rt_tbl = rt_tbl; |
| 985 | if (entry->rt_tbl) |
| 986 | entry->rt_tbl->ref_cnt++; |
| 987 | entry->hw_len = 0; |
| 988 | entry->prio = 0; |
| 989 | |
| 990 | return 0; |
| 991 | |
| 992 | error: |
| 993 | return -EPERM; |
| 994 | } |
| 995 | |
| 996 | static int __ipa_add_flt_get_ep_idx(enum ipa_client_type ep, int *ipa_ep_idx) |
| 997 | { |
| 998 | *ipa_ep_idx = ipa3_get_ep_mapping(ep); |
Ghanim Fodi | 79ee8d8 | 2017-02-27 16:39:25 +0200 | [diff] [blame] | 999 | if (*ipa_ep_idx < 0) { |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1000 | IPAERR("ep not valid ep=%d\n", ep); |
| 1001 | return -EINVAL; |
| 1002 | } |
| 1003 | if (ipa3_ctx->ep[*ipa_ep_idx].valid == 0) |
| 1004 | IPADBG("ep not connected ep_idx=%d\n", *ipa_ep_idx); |
| 1005 | |
| 1006 | if (!ipa_is_ep_support_flt(*ipa_ep_idx)) { |
| 1007 | IPAERR("ep do not support filtering ep=%d\n", ep); |
| 1008 | return -EINVAL; |
| 1009 | } |
| 1010 | |
| 1011 | return 0; |
| 1012 | } |
| 1013 | |
| 1014 | static int __ipa_add_ep_flt_rule(enum ipa_ip_type ip, enum ipa_client_type ep, |
| 1015 | const struct ipa_flt_rule *rule, u8 add_rear, |
| 1016 | u32 *rule_hdl) |
| 1017 | { |
| 1018 | struct ipa3_flt_tbl *tbl; |
| 1019 | int ipa_ep_idx; |
| 1020 | |
| 1021 | if (rule == NULL || rule_hdl == NULL || ep >= IPA_CLIENT_MAX) { |
| 1022 | IPAERR("bad parms rule=%p rule_hdl=%p ep=%d\n", rule, |
| 1023 | rule_hdl, ep); |
| 1024 | |
| 1025 | return -EINVAL; |
| 1026 | } |
| 1027 | |
| 1028 | if (__ipa_add_flt_get_ep_idx(ep, &ipa_ep_idx)) |
| 1029 | return -EINVAL; |
| 1030 | |
| 1031 | tbl = &ipa3_ctx->flt_tbl[ipa_ep_idx][ip]; |
| 1032 | IPADBG_LOW("add ep flt rule ip=%d ep=%d\n", ip, ep); |
| 1033 | |
| 1034 | return __ipa_add_flt_rule(tbl, ip, rule, add_rear, rule_hdl); |
| 1035 | } |
| 1036 | |
| 1037 | /** |
| 1038 | * ipa3_add_flt_rule() - Add the specified filtering rules to SW and optionally |
| 1039 | * commit to IPA HW |
| 1040 | * |
| 1041 | * Returns: 0 on success, negative on failure |
| 1042 | * |
| 1043 | * Note: Should not be called from atomic context |
| 1044 | */ |
| 1045 | int ipa3_add_flt_rule(struct ipa_ioc_add_flt_rule *rules) |
| 1046 | { |
| 1047 | int i; |
| 1048 | int result; |
| 1049 | |
| 1050 | if (rules == NULL || rules->num_rules == 0 || |
| 1051 | rules->ip >= IPA_IP_MAX) { |
| 1052 | IPAERR("bad parm\n"); |
| 1053 | return -EINVAL; |
| 1054 | } |
| 1055 | |
| 1056 | mutex_lock(&ipa3_ctx->lock); |
| 1057 | for (i = 0; i < rules->num_rules; i++) { |
| 1058 | if (!rules->global) |
| 1059 | result = __ipa_add_ep_flt_rule(rules->ip, rules->ep, |
| 1060 | &rules->rules[i].rule, |
| 1061 | rules->rules[i].at_rear, |
| 1062 | &rules->rules[i].flt_rule_hdl); |
| 1063 | else |
| 1064 | result = -1; |
| 1065 | |
| 1066 | if (result) { |
| 1067 | IPAERR("failed to add flt rule %d\n", i); |
| 1068 | rules->rules[i].status = IPA_FLT_STATUS_OF_ADD_FAILED; |
| 1069 | } else { |
| 1070 | rules->rules[i].status = 0; |
| 1071 | } |
| 1072 | } |
| 1073 | |
| 1074 | if (rules->global) { |
| 1075 | IPAERR("no support for global filter rules\n"); |
| 1076 | result = -EPERM; |
| 1077 | goto bail; |
| 1078 | } |
| 1079 | |
| 1080 | if (rules->commit) |
| 1081 | if (ipa3_ctx->ctrl->ipa3_commit_flt(rules->ip)) { |
| 1082 | result = -EPERM; |
| 1083 | goto bail; |
| 1084 | } |
| 1085 | result = 0; |
| 1086 | bail: |
| 1087 | mutex_unlock(&ipa3_ctx->lock); |
| 1088 | |
| 1089 | return result; |
| 1090 | } |
| 1091 | |
| 1092 | /** |
| 1093 | * ipa3_add_flt_rule_after() - Add the specified filtering rules to SW after |
| 1094 | * the rule which its handle is given and optionally commit to IPA HW |
| 1095 | * |
| 1096 | * Returns: 0 on success, negative on failure |
| 1097 | * |
| 1098 | * Note: Should not be called from atomic context |
| 1099 | */ |
| 1100 | int ipa3_add_flt_rule_after(struct ipa_ioc_add_flt_rule_after *rules) |
| 1101 | { |
| 1102 | int i; |
| 1103 | int result; |
| 1104 | struct ipa3_flt_tbl *tbl; |
| 1105 | int ipa_ep_idx; |
| 1106 | struct ipa3_flt_entry *entry; |
| 1107 | |
| 1108 | if (rules == NULL || rules->num_rules == 0 || |
| 1109 | rules->ip >= IPA_IP_MAX) { |
| 1110 | IPAERR("bad parm\n"); |
| 1111 | return -EINVAL; |
| 1112 | } |
| 1113 | |
| 1114 | if (rules->ep >= IPA_CLIENT_MAX) { |
| 1115 | IPAERR("bad parms ep=%d\n", rules->ep); |
| 1116 | return -EINVAL; |
| 1117 | } |
| 1118 | |
| 1119 | mutex_lock(&ipa3_ctx->lock); |
| 1120 | |
| 1121 | if (__ipa_add_flt_get_ep_idx(rules->ep, &ipa_ep_idx)) { |
| 1122 | result = -EINVAL; |
| 1123 | goto bail; |
| 1124 | } |
| 1125 | |
| 1126 | tbl = &ipa3_ctx->flt_tbl[ipa_ep_idx][rules->ip]; |
| 1127 | |
| 1128 | entry = ipa3_id_find(rules->add_after_hdl); |
| 1129 | if (entry == NULL) { |
| 1130 | IPAERR("lookup failed\n"); |
| 1131 | result = -EINVAL; |
| 1132 | goto bail; |
| 1133 | } |
| 1134 | |
| 1135 | if (entry->tbl != tbl) { |
| 1136 | IPAERR("given entry does not match the table\n"); |
| 1137 | result = -EINVAL; |
| 1138 | goto bail; |
| 1139 | } |
| 1140 | |
| 1141 | if (tbl->sticky_rear) |
| 1142 | if (&entry->link == tbl->head_flt_rule_list.prev) { |
| 1143 | IPAERR("cannot add rule at end of a sticky table"); |
| 1144 | result = -EINVAL; |
| 1145 | goto bail; |
| 1146 | } |
| 1147 | |
| 1148 | IPADBG("add ep flt rule ip=%d ep=%d after hdl %d\n", |
| 1149 | rules->ip, rules->ep, rules->add_after_hdl); |
| 1150 | |
| 1151 | /* |
| 1152 | * we add all rules one after the other, if one insertion fails, it cuts |
| 1153 | * the chain (all following will receive fail status) following calls to |
| 1154 | * __ipa_add_flt_rule_after will fail (entry == NULL) |
| 1155 | */ |
| 1156 | |
| 1157 | for (i = 0; i < rules->num_rules; i++) { |
| 1158 | result = __ipa_add_flt_rule_after(tbl, |
| 1159 | &rules->rules[i].rule, |
| 1160 | &rules->rules[i].flt_rule_hdl, |
| 1161 | rules->ip, |
| 1162 | &entry); |
| 1163 | |
| 1164 | if (result) { |
| 1165 | IPAERR("failed to add flt rule %d\n", i); |
| 1166 | rules->rules[i].status = IPA_FLT_STATUS_OF_ADD_FAILED; |
| 1167 | } else { |
| 1168 | rules->rules[i].status = 0; |
| 1169 | } |
| 1170 | } |
| 1171 | |
| 1172 | if (rules->commit) |
| 1173 | if (ipa3_ctx->ctrl->ipa3_commit_flt(rules->ip)) { |
| 1174 | IPAERR("failed to commit flt rules\n"); |
| 1175 | result = -EPERM; |
| 1176 | goto bail; |
| 1177 | } |
| 1178 | result = 0; |
| 1179 | bail: |
| 1180 | mutex_unlock(&ipa3_ctx->lock); |
| 1181 | |
| 1182 | return result; |
| 1183 | } |
| 1184 | |
| 1185 | /** |
| 1186 | * ipa3_del_flt_rule() - Remove the specified filtering rules from SW and |
| 1187 | * optionally commit to IPA HW |
| 1188 | * |
| 1189 | * Returns: 0 on success, negative on failure |
| 1190 | * |
| 1191 | * Note: Should not be called from atomic context |
| 1192 | */ |
| 1193 | int ipa3_del_flt_rule(struct ipa_ioc_del_flt_rule *hdls) |
| 1194 | { |
| 1195 | int i; |
| 1196 | int result; |
| 1197 | |
| 1198 | if (hdls == NULL || hdls->num_hdls == 0 || hdls->ip >= IPA_IP_MAX) { |
| 1199 | IPAERR("bad parm\n"); |
| 1200 | return -EINVAL; |
| 1201 | } |
| 1202 | |
| 1203 | mutex_lock(&ipa3_ctx->lock); |
| 1204 | for (i = 0; i < hdls->num_hdls; i++) { |
| 1205 | if (__ipa_del_flt_rule(hdls->hdl[i].hdl)) { |
| 1206 | IPAERR("failed to del flt rule %i\n", i); |
| 1207 | hdls->hdl[i].status = IPA_FLT_STATUS_OF_DEL_FAILED; |
| 1208 | } else { |
| 1209 | hdls->hdl[i].status = 0; |
| 1210 | } |
| 1211 | } |
| 1212 | |
| 1213 | if (hdls->commit) |
| 1214 | if (ipa3_ctx->ctrl->ipa3_commit_flt(hdls->ip)) { |
| 1215 | result = -EPERM; |
| 1216 | goto bail; |
| 1217 | } |
| 1218 | result = 0; |
| 1219 | bail: |
| 1220 | mutex_unlock(&ipa3_ctx->lock); |
| 1221 | |
| 1222 | return result; |
| 1223 | } |
| 1224 | |
| 1225 | /** |
| 1226 | * ipa3_mdfy_flt_rule() - Modify the specified filtering rules in SW and |
| 1227 | * optionally commit to IPA HW |
| 1228 | * |
| 1229 | * Returns: 0 on success, negative on failure |
| 1230 | * |
| 1231 | * Note: Should not be called from atomic context |
| 1232 | */ |
| 1233 | int ipa3_mdfy_flt_rule(struct ipa_ioc_mdfy_flt_rule *hdls) |
| 1234 | { |
| 1235 | int i; |
| 1236 | int result; |
| 1237 | |
| 1238 | if (hdls == NULL || hdls->num_rules == 0 || hdls->ip >= IPA_IP_MAX) { |
| 1239 | IPAERR("bad parm\n"); |
| 1240 | return -EINVAL; |
| 1241 | } |
| 1242 | |
| 1243 | mutex_lock(&ipa3_ctx->lock); |
| 1244 | for (i = 0; i < hdls->num_rules; i++) { |
| 1245 | if (__ipa_mdfy_flt_rule(&hdls->rules[i], hdls->ip)) { |
| 1246 | IPAERR("failed to mdfy flt rule %i\n", i); |
| 1247 | hdls->rules[i].status = IPA_FLT_STATUS_OF_MDFY_FAILED; |
| 1248 | } else { |
| 1249 | hdls->rules[i].status = 0; |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | if (hdls->commit) |
| 1254 | if (ipa3_ctx->ctrl->ipa3_commit_flt(hdls->ip)) { |
| 1255 | result = -EPERM; |
| 1256 | goto bail; |
| 1257 | } |
| 1258 | result = 0; |
| 1259 | bail: |
| 1260 | mutex_unlock(&ipa3_ctx->lock); |
| 1261 | |
| 1262 | return result; |
| 1263 | } |
| 1264 | |
| 1265 | |
| 1266 | /** |
| 1267 | * ipa3_commit_flt() - Commit the current SW filtering table of specified type |
| 1268 | * to IPA HW |
| 1269 | * @ip: [in] the family of routing tables |
| 1270 | * |
| 1271 | * Returns: 0 on success, negative on failure |
| 1272 | * |
| 1273 | * Note: Should not be called from atomic context |
| 1274 | */ |
| 1275 | int ipa3_commit_flt(enum ipa_ip_type ip) |
| 1276 | { |
| 1277 | int result; |
| 1278 | |
| 1279 | if (ip >= IPA_IP_MAX) { |
| 1280 | IPAERR("bad parm\n"); |
| 1281 | return -EINVAL; |
| 1282 | } |
| 1283 | |
| 1284 | mutex_lock(&ipa3_ctx->lock); |
| 1285 | |
| 1286 | if (ipa3_ctx->ctrl->ipa3_commit_flt(ip)) { |
| 1287 | result = -EPERM; |
| 1288 | goto bail; |
| 1289 | } |
| 1290 | result = 0; |
| 1291 | |
| 1292 | bail: |
| 1293 | mutex_unlock(&ipa3_ctx->lock); |
| 1294 | |
| 1295 | return result; |
| 1296 | } |
| 1297 | |
| 1298 | /** |
| 1299 | * ipa3_reset_flt() - Reset the current SW filtering table of specified type |
| 1300 | * (does not commit to HW) |
| 1301 | * @ip: [in] the family of routing tables |
| 1302 | * |
| 1303 | * Returns: 0 on success, negative on failure |
| 1304 | * |
| 1305 | * Note: Should not be called from atomic context |
| 1306 | */ |
| 1307 | int ipa3_reset_flt(enum ipa_ip_type ip) |
| 1308 | { |
| 1309 | struct ipa3_flt_tbl *tbl; |
| 1310 | struct ipa3_flt_entry *entry; |
| 1311 | struct ipa3_flt_entry *next; |
| 1312 | int i; |
| 1313 | int id; |
| 1314 | |
| 1315 | if (ip >= IPA_IP_MAX) { |
| 1316 | IPAERR("bad parm\n"); |
| 1317 | return -EINVAL; |
| 1318 | } |
| 1319 | |
| 1320 | mutex_lock(&ipa3_ctx->lock); |
| 1321 | for (i = 0; i < ipa3_ctx->ipa_num_pipes; i++) { |
| 1322 | if (!ipa_is_ep_support_flt(i)) |
| 1323 | continue; |
| 1324 | |
| 1325 | tbl = &ipa3_ctx->flt_tbl[i][ip]; |
| 1326 | list_for_each_entry_safe(entry, next, &tbl->head_flt_rule_list, |
| 1327 | link) { |
| 1328 | if (ipa3_id_find(entry->id) == NULL) { |
| 1329 | WARN_ON(1); |
| 1330 | mutex_unlock(&ipa3_ctx->lock); |
| 1331 | return -EFAULT; |
| 1332 | } |
| 1333 | list_del(&entry->link); |
| 1334 | entry->tbl->rule_cnt--; |
| 1335 | if (entry->rt_tbl) |
| 1336 | entry->rt_tbl->ref_cnt--; |
| 1337 | /* if rule id was allocated from idr, remove it */ |
| 1338 | if (!(entry->rule_id & ipahal_get_rule_id_hi_bit())) |
| 1339 | idr_remove(&entry->tbl->rule_ids, |
| 1340 | entry->rule_id); |
| 1341 | entry->cookie = 0; |
| 1342 | id = entry->id; |
| 1343 | kmem_cache_free(ipa3_ctx->flt_rule_cache, entry); |
| 1344 | |
| 1345 | /* remove the handle from the database */ |
| 1346 | ipa3_id_remove(id); |
| 1347 | } |
| 1348 | } |
| 1349 | mutex_unlock(&ipa3_ctx->lock); |
| 1350 | |
| 1351 | return 0; |
| 1352 | } |
| 1353 | |
| 1354 | void ipa3_install_dflt_flt_rules(u32 ipa_ep_idx) |
| 1355 | { |
| 1356 | struct ipa3_flt_tbl *tbl; |
| 1357 | struct ipa3_ep_context *ep = &ipa3_ctx->ep[ipa_ep_idx]; |
| 1358 | struct ipa_flt_rule rule; |
| 1359 | |
| 1360 | if (!ipa_is_ep_support_flt(ipa_ep_idx)) { |
| 1361 | IPADBG("cannot add flt rules to non filtering pipe num %d\n", |
| 1362 | ipa_ep_idx); |
| 1363 | return; |
| 1364 | } |
| 1365 | |
| 1366 | memset(&rule, 0, sizeof(rule)); |
| 1367 | |
| 1368 | mutex_lock(&ipa3_ctx->lock); |
| 1369 | tbl = &ipa3_ctx->flt_tbl[ipa_ep_idx][IPA_IP_v4]; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1370 | rule.action = IPA_PASS_TO_EXCEPTION; |
Gidon Studinski | 3021a6f | 2016-11-10 12:48:48 +0200 | [diff] [blame] | 1371 | __ipa_add_flt_rule(tbl, IPA_IP_v4, &rule, true, |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1372 | &ep->dflt_flt4_rule_hdl); |
| 1373 | ipa3_ctx->ctrl->ipa3_commit_flt(IPA_IP_v4); |
Gidon Studinski | 3021a6f | 2016-11-10 12:48:48 +0200 | [diff] [blame] | 1374 | tbl->sticky_rear = true; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1375 | |
| 1376 | tbl = &ipa3_ctx->flt_tbl[ipa_ep_idx][IPA_IP_v6]; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1377 | rule.action = IPA_PASS_TO_EXCEPTION; |
Gidon Studinski | 3021a6f | 2016-11-10 12:48:48 +0200 | [diff] [blame] | 1378 | __ipa_add_flt_rule(tbl, IPA_IP_v6, &rule, true, |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1379 | &ep->dflt_flt6_rule_hdl); |
| 1380 | ipa3_ctx->ctrl->ipa3_commit_flt(IPA_IP_v6); |
Gidon Studinski | 3021a6f | 2016-11-10 12:48:48 +0200 | [diff] [blame] | 1381 | tbl->sticky_rear = true; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1382 | mutex_unlock(&ipa3_ctx->lock); |
| 1383 | } |
| 1384 | |
| 1385 | void ipa3_delete_dflt_flt_rules(u32 ipa_ep_idx) |
| 1386 | { |
| 1387 | struct ipa3_ep_context *ep = &ipa3_ctx->ep[ipa_ep_idx]; |
Utkarsh Saxena | f6cc798 | 2017-03-28 22:51:46 +0530 | [diff] [blame] | 1388 | struct ipa3_flt_tbl *tbl; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1389 | |
| 1390 | mutex_lock(&ipa3_ctx->lock); |
| 1391 | if (ep->dflt_flt4_rule_hdl) { |
Utkarsh Saxena | f6cc798 | 2017-03-28 22:51:46 +0530 | [diff] [blame] | 1392 | tbl = &ipa3_ctx->flt_tbl[ipa_ep_idx][IPA_IP_v4]; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1393 | __ipa_del_flt_rule(ep->dflt_flt4_rule_hdl); |
| 1394 | ipa3_ctx->ctrl->ipa3_commit_flt(IPA_IP_v4); |
Utkarsh Saxena | f6cc798 | 2017-03-28 22:51:46 +0530 | [diff] [blame] | 1395 | /* Reset the sticky flag. */ |
| 1396 | tbl->sticky_rear = false; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1397 | ep->dflt_flt4_rule_hdl = 0; |
| 1398 | } |
| 1399 | if (ep->dflt_flt6_rule_hdl) { |
Utkarsh Saxena | f6cc798 | 2017-03-28 22:51:46 +0530 | [diff] [blame] | 1400 | tbl = &ipa3_ctx->flt_tbl[ipa_ep_idx][IPA_IP_v6]; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1401 | __ipa_del_flt_rule(ep->dflt_flt6_rule_hdl); |
| 1402 | ipa3_ctx->ctrl->ipa3_commit_flt(IPA_IP_v6); |
Utkarsh Saxena | f6cc798 | 2017-03-28 22:51:46 +0530 | [diff] [blame] | 1403 | /* Reset the sticky flag. */ |
| 1404 | tbl->sticky_rear = false; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1405 | ep->dflt_flt6_rule_hdl = 0; |
| 1406 | } |
| 1407 | mutex_unlock(&ipa3_ctx->lock); |
| 1408 | } |
| 1409 | |
| 1410 | /** |
| 1411 | * ipa3_set_flt_tuple_mask() - Sets the flt tuple masking for the given pipe |
| 1412 | * Pipe must be for AP EP (not modem) and support filtering |
| 1413 | * updates the the filtering masking values without changing the rt ones. |
| 1414 | * |
| 1415 | * @pipe_idx: filter pipe index to configure the tuple masking |
| 1416 | * @tuple: the tuple members masking |
| 1417 | * Returns: 0 on success, negative on failure |
| 1418 | * |
| 1419 | */ |
| 1420 | int ipa3_set_flt_tuple_mask(int pipe_idx, struct ipahal_reg_hash_tuple *tuple) |
| 1421 | { |
| 1422 | struct ipahal_reg_fltrt_hash_tuple fltrt_tuple; |
| 1423 | |
| 1424 | if (!tuple) { |
| 1425 | IPAERR("bad tuple\n"); |
| 1426 | return -EINVAL; |
| 1427 | } |
| 1428 | |
| 1429 | if (pipe_idx >= ipa3_ctx->ipa_num_pipes || pipe_idx < 0) { |
| 1430 | IPAERR("bad pipe index!\n"); |
| 1431 | return -EINVAL; |
| 1432 | } |
| 1433 | |
| 1434 | if (!ipa_is_ep_support_flt(pipe_idx)) { |
| 1435 | IPAERR("pipe %d not filtering pipe\n", pipe_idx); |
| 1436 | return -EINVAL; |
| 1437 | } |
| 1438 | |
| 1439 | if (ipa_is_modem_pipe(pipe_idx)) { |
| 1440 | IPAERR("modem pipe tuple is not configured by AP\n"); |
| 1441 | return -EINVAL; |
| 1442 | } |
| 1443 | |
| 1444 | ipahal_read_reg_n_fields(IPA_ENDP_FILTER_ROUTER_HSH_CFG_n, |
| 1445 | pipe_idx, &fltrt_tuple); |
| 1446 | fltrt_tuple.flt = *tuple; |
| 1447 | ipahal_write_reg_n_fields(IPA_ENDP_FILTER_ROUTER_HSH_CFG_n, |
| 1448 | pipe_idx, &fltrt_tuple); |
| 1449 | |
| 1450 | return 0; |
| 1451 | } |
| 1452 | |
| 1453 | /** |
| 1454 | * ipa3_flt_read_tbl_from_hw() -Read filtering table from IPA HW |
| 1455 | * @pipe_idx: IPA endpoint index |
| 1456 | * @ip_type: IPv4 or IPv6 table |
| 1457 | * @hashable: hashable or non-hashable table |
| 1458 | * @entry: array to fill the table entries |
| 1459 | * @num_entry: number of entries in entry array. set by the caller to indicate |
| 1460 | * entry array size. Then set by this function as an output parameter to |
| 1461 | * indicate the number of entries in the array |
| 1462 | * |
| 1463 | * This function reads the filtering table from IPA SRAM and prepares an array |
| 1464 | * of entries. This function is mainly used for debugging purposes. |
| 1465 | * |
| 1466 | * If empty table or Modem Apps table, zero entries will be returned. |
| 1467 | * |
| 1468 | * Returns: 0 on success, negative on failure |
| 1469 | */ |
| 1470 | int ipa3_flt_read_tbl_from_hw(u32 pipe_idx, enum ipa_ip_type ip_type, |
| 1471 | bool hashable, struct ipahal_flt_rule_entry entry[], int *num_entry) |
| 1472 | { |
| 1473 | void *ipa_sram_mmio; |
| 1474 | u64 hdr_base_ofst; |
| 1475 | int tbl_entry_idx; |
| 1476 | int i; |
| 1477 | int res = 0; |
| 1478 | u64 tbl_addr; |
| 1479 | bool is_sys; |
| 1480 | u8 *rule_addr; |
| 1481 | struct ipa_mem_buffer *sys_tbl_mem; |
| 1482 | int rule_idx; |
| 1483 | |
| 1484 | IPADBG("pipe_idx=%d ip=%d hashable=%d entry=0x%p num_entry=0x%p\n", |
| 1485 | pipe_idx, ip_type, hashable, entry, num_entry); |
| 1486 | |
| 1487 | if (pipe_idx >= ipa3_ctx->ipa_num_pipes || ip_type >= IPA_IP_MAX || |
| 1488 | !entry || !num_entry) { |
| 1489 | IPAERR("Invalid params\n"); |
| 1490 | return -EFAULT; |
| 1491 | } |
| 1492 | |
| 1493 | if (!ipa_is_ep_support_flt(pipe_idx)) { |
| 1494 | IPAERR("pipe %d does not support filtering\n", pipe_idx); |
| 1495 | return -EINVAL; |
| 1496 | } |
| 1497 | |
| 1498 | /* map IPA SRAM */ |
| 1499 | ipa_sram_mmio = ioremap(ipa3_ctx->ipa_wrapper_base + |
| 1500 | ipa3_ctx->ctrl->ipa_reg_base_ofst + |
| 1501 | ipahal_get_reg_n_ofst(IPA_SRAM_DIRECT_ACCESS_n, |
| 1502 | ipa3_ctx->smem_restricted_bytes / 4), |
| 1503 | ipa3_ctx->smem_sz); |
| 1504 | if (!ipa_sram_mmio) { |
| 1505 | IPAERR("fail to ioremap IPA SRAM\n"); |
| 1506 | return -ENOMEM; |
| 1507 | } |
| 1508 | |
| 1509 | memset(entry, 0, sizeof(*entry) * (*num_entry)); |
| 1510 | if (hashable) { |
| 1511 | if (ip_type == IPA_IP_v4) |
| 1512 | hdr_base_ofst = |
| 1513 | IPA_MEM_PART(v4_flt_hash_ofst); |
| 1514 | else |
| 1515 | hdr_base_ofst = |
| 1516 | IPA_MEM_PART(v6_flt_hash_ofst); |
| 1517 | } else { |
| 1518 | if (ip_type == IPA_IP_v4) |
| 1519 | hdr_base_ofst = |
| 1520 | IPA_MEM_PART(v4_flt_nhash_ofst); |
| 1521 | else |
| 1522 | hdr_base_ofst = |
| 1523 | IPA_MEM_PART(v6_flt_nhash_ofst); |
| 1524 | } |
| 1525 | |
| 1526 | /* calculate the index of the tbl entry */ |
| 1527 | tbl_entry_idx = 1; /* skip the bitmap */ |
| 1528 | for (i = 0; i < pipe_idx; i++) |
| 1529 | if (ipa3_ctx->ep_flt_bitmap & (1 << i)) |
| 1530 | tbl_entry_idx++; |
| 1531 | |
| 1532 | IPADBG("hdr_base_ofst=0x%llx tbl_entry_idx=%d\n", |
| 1533 | hdr_base_ofst, tbl_entry_idx); |
| 1534 | |
| 1535 | res = ipahal_fltrt_read_addr_from_hdr(ipa_sram_mmio + hdr_base_ofst, |
| 1536 | tbl_entry_idx, &tbl_addr, &is_sys); |
| 1537 | if (res) { |
| 1538 | IPAERR("failed to read table address from header structure\n"); |
| 1539 | goto bail; |
| 1540 | } |
| 1541 | IPADBG("flt tbl ep=%d: tbl_addr=0x%llx is_sys=%d\n", |
| 1542 | pipe_idx, tbl_addr, is_sys); |
| 1543 | if (!tbl_addr) { |
| 1544 | IPAERR("invalid flt tbl addr\n"); |
| 1545 | res = -EFAULT; |
| 1546 | goto bail; |
| 1547 | } |
| 1548 | |
| 1549 | /* for tables resides in DDR access it from the virtual memory */ |
| 1550 | if (is_sys) { |
| 1551 | sys_tbl_mem = &ipa3_ctx->flt_tbl[pipe_idx][ip_type]. |
| 1552 | curr_mem[hashable ? IPA_RULE_HASHABLE : |
| 1553 | IPA_RULE_NON_HASHABLE]; |
| 1554 | if (sys_tbl_mem->phys_base && |
| 1555 | sys_tbl_mem->phys_base != tbl_addr) { |
| 1556 | IPAERR("mismatch addr: parsed=%llx sw=%pad\n", |
| 1557 | tbl_addr, &sys_tbl_mem->phys_base); |
| 1558 | } |
| 1559 | if (sys_tbl_mem->phys_base) |
| 1560 | rule_addr = sys_tbl_mem->base; |
| 1561 | else |
| 1562 | rule_addr = NULL; |
| 1563 | } else { |
| 1564 | rule_addr = ipa_sram_mmio + hdr_base_ofst + tbl_addr; |
| 1565 | } |
| 1566 | |
| 1567 | IPADBG("First rule addr 0x%p\n", rule_addr); |
| 1568 | |
| 1569 | if (!rule_addr) { |
| 1570 | /* Modem table in system memory or empty table */ |
| 1571 | *num_entry = 0; |
| 1572 | goto bail; |
| 1573 | } |
| 1574 | |
| 1575 | rule_idx = 0; |
| 1576 | while (rule_idx < *num_entry) { |
| 1577 | res = ipahal_flt_parse_hw_rule(rule_addr, &entry[rule_idx]); |
| 1578 | if (res) { |
| 1579 | IPAERR("failed parsing flt rule\n"); |
| 1580 | goto bail; |
| 1581 | } |
| 1582 | |
| 1583 | IPADBG("rule_size=%d\n", entry[rule_idx].rule_size); |
| 1584 | if (!entry[rule_idx].rule_size) |
| 1585 | break; |
| 1586 | |
| 1587 | rule_addr += entry[rule_idx].rule_size; |
| 1588 | rule_idx++; |
| 1589 | } |
| 1590 | *num_entry = rule_idx; |
| 1591 | bail: |
| 1592 | iounmap(ipa_sram_mmio); |
| 1593 | return 0; |
| 1594 | } |