Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame^] | 1 | /* Copyright (c) 2014-2016, The Linux Foundation. All rights reserved. |
| 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 | /* |
| 14 | * WWAN Transport Network Driver. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/completion.h> |
| 18 | #include <linux/errno.h> |
| 19 | #include <linux/if_arp.h> |
| 20 | #include <linux/interrupt.h> |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/module.h> |
| 24 | #include <linux/netdevice.h> |
| 25 | #include <linux/of_device.h> |
| 26 | #include <linux/string.h> |
| 27 | #include <linux/skbuff.h> |
| 28 | #include <linux/version.h> |
| 29 | #include <linux/workqueue.h> |
| 30 | #include <net/pkt_sched.h> |
| 31 | #include <soc/qcom/subsystem_restart.h> |
| 32 | #include <soc/qcom/subsystem_notif.h> |
| 33 | #include "ipa_qmi_service.h" |
| 34 | #include <linux/rmnet_ipa_fd_ioctl.h> |
| 35 | #include <linux/ipa.h> |
| 36 | #include <uapi/linux/net_map.h> |
| 37 | |
| 38 | #include "ipa_trace.h" |
| 39 | |
| 40 | #define WWAN_METADATA_SHFT 24 |
| 41 | #define WWAN_METADATA_MASK 0xFF000000 |
| 42 | #define WWAN_DATA_LEN 2000 |
| 43 | #define IPA_RM_INACTIVITY_TIMER 100 /* IPA_RM */ |
| 44 | #define HEADROOM_FOR_QMAP 8 /* for mux header */ |
| 45 | #define TAILROOM 0 /* for padding by mux layer */ |
| 46 | #define MAX_NUM_OF_MUX_CHANNEL 10 /* max mux channels */ |
| 47 | #define UL_FILTER_RULE_HANDLE_START 69 |
| 48 | #define DEFAULT_OUTSTANDING_HIGH_CTL 96 |
| 49 | #define DEFAULT_OUTSTANDING_HIGH 64 |
| 50 | #define DEFAULT_OUTSTANDING_LOW 32 |
| 51 | |
| 52 | #define IPA_WWAN_DEV_NAME "rmnet_ipa%d" |
| 53 | |
| 54 | #define IPA_WWAN_RX_SOFTIRQ_THRESH 16 |
| 55 | |
| 56 | #define INVALID_MUX_ID 0xFF |
| 57 | #define IPA_QUOTA_REACH_ALERT_MAX_SIZE 64 |
| 58 | #define IPA_QUOTA_REACH_IF_NAME_MAX_SIZE 64 |
| 59 | #define IPA_UEVENT_NUM_EVNP 4 /* number of event pointers */ |
| 60 | #define NAPI_WEIGHT 60 |
| 61 | |
| 62 | #define IPA_NETDEV() \ |
| 63 | ((rmnet_ipa3_ctx && rmnet_ipa3_ctx->wwan_priv) ? \ |
| 64 | rmnet_ipa3_ctx->wwan_priv->net : NULL) |
| 65 | |
| 66 | |
| 67 | static int ipa3_wwan_add_ul_flt_rule_to_ipa(void); |
| 68 | static int ipa3_wwan_del_ul_flt_rule_to_ipa(void); |
| 69 | static void ipa3_wwan_msg_free_cb(void*, u32, u32); |
| 70 | static void ipa3_rmnet_rx_cb(void *priv); |
| 71 | static int ipa3_rmnet_poll(struct napi_struct *napi, int budget); |
| 72 | |
| 73 | static void ipa3_wake_tx_queue(struct work_struct *work); |
| 74 | static DECLARE_WORK(ipa3_tx_wakequeue_work, ipa3_wake_tx_queue); |
| 75 | |
| 76 | static void tethering_stats_poll_queue(struct work_struct *work); |
| 77 | static DECLARE_DELAYED_WORK(ipa_tether_stats_poll_wakequeue_work, |
| 78 | tethering_stats_poll_queue); |
| 79 | |
| 80 | enum ipa3_wwan_device_status { |
| 81 | WWAN_DEVICE_INACTIVE = 0, |
| 82 | WWAN_DEVICE_ACTIVE = 1 |
| 83 | }; |
| 84 | |
| 85 | struct ipa3_rmnet_plat_drv_res { |
| 86 | bool ipa_rmnet_ssr; |
| 87 | bool ipa_loaduC; |
| 88 | bool ipa_advertise_sg_support; |
| 89 | bool ipa_napi_enable; |
| 90 | }; |
| 91 | |
| 92 | /** |
| 93 | * struct ipa3_wwan_private - WWAN private data |
| 94 | * @net: network interface struct implemented by this driver |
| 95 | * @stats: iface statistics |
| 96 | * @outstanding_pkts: number of packets sent to IPA without TX complete ACKed |
| 97 | * @outstanding_high: number of outstanding packets allowed |
| 98 | * @outstanding_low: number of outstanding packets which shall cause |
| 99 | * @ch_id: channel id |
| 100 | * @lock: spinlock for mutual exclusion |
| 101 | * @device_status: holds device status |
| 102 | * |
| 103 | * WWAN private - holds all relevant info about WWAN driver |
| 104 | */ |
| 105 | struct ipa3_wwan_private { |
| 106 | struct net_device *net; |
| 107 | struct net_device_stats stats; |
| 108 | atomic_t outstanding_pkts; |
| 109 | int outstanding_high_ctl; |
| 110 | int outstanding_high; |
| 111 | int outstanding_low; |
| 112 | uint32_t ch_id; |
| 113 | spinlock_t lock; |
| 114 | struct completion resource_granted_completion; |
| 115 | enum ipa3_wwan_device_status device_status; |
| 116 | struct napi_struct napi; |
| 117 | }; |
| 118 | |
| 119 | struct rmnet_ipa3_context { |
| 120 | struct ipa3_wwan_private *wwan_priv; |
| 121 | struct ipa_sys_connect_params apps_to_ipa_ep_cfg; |
| 122 | struct ipa_sys_connect_params ipa_to_apps_ep_cfg; |
| 123 | u32 qmap_hdr_hdl; |
| 124 | u32 dflt_v4_wan_rt_hdl; |
| 125 | u32 dflt_v6_wan_rt_hdl; |
| 126 | struct ipa3_rmnet_mux_val mux_channel[MAX_NUM_OF_MUX_CHANNEL]; |
| 127 | int num_q6_rules; |
| 128 | int old_num_q6_rules; |
| 129 | int rmnet_index; |
| 130 | bool egress_set; |
| 131 | bool a7_ul_flt_set; |
| 132 | struct workqueue_struct *rm_q6_wq; |
| 133 | atomic_t is_initialized; |
| 134 | atomic_t is_ssr; |
| 135 | void *subsys_notify_handle; |
| 136 | u32 apps_to_ipa3_hdl; |
| 137 | u32 ipa3_to_apps_hdl; |
| 138 | struct mutex ipa_to_apps_pipe_handle_guard; |
| 139 | }; |
| 140 | |
| 141 | static struct rmnet_ipa3_context *rmnet_ipa3_ctx; |
| 142 | static struct ipa3_rmnet_plat_drv_res ipa3_rmnet_res; |
| 143 | |
| 144 | /** |
| 145 | * ipa3_setup_a7_qmap_hdr() - Setup default a7 qmap hdr |
| 146 | * |
| 147 | * Return codes: |
| 148 | * 0: success |
| 149 | * -ENOMEM: failed to allocate memory |
| 150 | * -EPERM: failed to add the tables |
| 151 | */ |
| 152 | static int ipa3_setup_a7_qmap_hdr(void) |
| 153 | { |
| 154 | struct ipa_ioc_add_hdr *hdr; |
| 155 | struct ipa_hdr_add *hdr_entry; |
| 156 | u32 pyld_sz; |
| 157 | int ret; |
| 158 | |
| 159 | /* install the basic exception header */ |
| 160 | pyld_sz = sizeof(struct ipa_ioc_add_hdr) + 1 * |
| 161 | sizeof(struct ipa_hdr_add); |
| 162 | hdr = kzalloc(pyld_sz, GFP_KERNEL); |
| 163 | if (!hdr) { |
| 164 | IPAWANERR("fail to alloc exception hdr\n"); |
| 165 | return -ENOMEM; |
| 166 | } |
| 167 | hdr->num_hdrs = 1; |
| 168 | hdr->commit = 1; |
| 169 | hdr_entry = &hdr->hdr[0]; |
| 170 | |
| 171 | strlcpy(hdr_entry->name, IPA_A7_QMAP_HDR_NAME, |
| 172 | IPA_RESOURCE_NAME_MAX); |
| 173 | hdr_entry->hdr_len = IPA_QMAP_HEADER_LENGTH; /* 4 bytes */ |
| 174 | |
| 175 | if (ipa3_add_hdr(hdr)) { |
| 176 | IPAWANERR("fail to add IPA_A7_QMAP hdr\n"); |
| 177 | ret = -EPERM; |
| 178 | goto bail; |
| 179 | } |
| 180 | |
| 181 | if (hdr_entry->status) { |
| 182 | IPAWANERR("fail to add IPA_A7_QMAP hdr\n"); |
| 183 | ret = -EPERM; |
| 184 | goto bail; |
| 185 | } |
| 186 | rmnet_ipa3_ctx->qmap_hdr_hdl = hdr_entry->hdr_hdl; |
| 187 | |
| 188 | ret = 0; |
| 189 | bail: |
| 190 | kfree(hdr); |
| 191 | return ret; |
| 192 | } |
| 193 | |
| 194 | static void ipa3_del_a7_qmap_hdr(void) |
| 195 | { |
| 196 | struct ipa_ioc_del_hdr *del_hdr; |
| 197 | struct ipa_hdr_del *hdl_entry; |
| 198 | u32 pyld_sz; |
| 199 | int ret; |
| 200 | |
| 201 | pyld_sz = sizeof(struct ipa_ioc_del_hdr) + 1 * |
| 202 | sizeof(struct ipa_hdr_del); |
| 203 | del_hdr = kzalloc(pyld_sz, GFP_KERNEL); |
| 204 | if (!del_hdr) { |
| 205 | IPAWANERR("fail to alloc exception hdr_del\n"); |
| 206 | return; |
| 207 | } |
| 208 | |
| 209 | del_hdr->commit = 1; |
| 210 | del_hdr->num_hdls = 1; |
| 211 | hdl_entry = &del_hdr->hdl[0]; |
| 212 | hdl_entry->hdl = rmnet_ipa3_ctx->qmap_hdr_hdl; |
| 213 | |
| 214 | ret = ipa3_del_hdr(del_hdr); |
| 215 | if (ret || hdl_entry->status) |
| 216 | IPAWANERR("ipa3_del_hdr failed\n"); |
| 217 | else |
| 218 | IPAWANDBG("hdrs deletion done\n"); |
| 219 | |
| 220 | rmnet_ipa3_ctx->qmap_hdr_hdl = 0; |
| 221 | kfree(del_hdr); |
| 222 | } |
| 223 | |
| 224 | static void ipa3_del_qmap_hdr(uint32_t hdr_hdl) |
| 225 | { |
| 226 | struct ipa_ioc_del_hdr *del_hdr; |
| 227 | struct ipa_hdr_del *hdl_entry; |
| 228 | u32 pyld_sz; |
| 229 | int ret; |
| 230 | |
| 231 | if (hdr_hdl == 0) { |
| 232 | IPAWANERR("Invalid hdr_hdl provided\n"); |
| 233 | return; |
| 234 | } |
| 235 | |
| 236 | pyld_sz = sizeof(struct ipa_ioc_del_hdr) + 1 * |
| 237 | sizeof(struct ipa_hdr_del); |
| 238 | del_hdr = kzalloc(pyld_sz, GFP_KERNEL); |
| 239 | if (!del_hdr) { |
| 240 | IPAWANERR("fail to alloc exception hdr_del\n"); |
| 241 | return; |
| 242 | } |
| 243 | |
| 244 | del_hdr->commit = 1; |
| 245 | del_hdr->num_hdls = 1; |
| 246 | hdl_entry = &del_hdr->hdl[0]; |
| 247 | hdl_entry->hdl = hdr_hdl; |
| 248 | |
| 249 | ret = ipa3_del_hdr(del_hdr); |
| 250 | if (ret || hdl_entry->status) |
| 251 | IPAWANERR("ipa3_del_hdr failed\n"); |
| 252 | else |
| 253 | IPAWANDBG("header deletion done\n"); |
| 254 | |
| 255 | rmnet_ipa3_ctx->qmap_hdr_hdl = 0; |
| 256 | kfree(del_hdr); |
| 257 | } |
| 258 | |
| 259 | static void ipa3_del_mux_qmap_hdrs(void) |
| 260 | { |
| 261 | int index; |
| 262 | |
| 263 | for (index = 0; index < rmnet_ipa3_ctx->rmnet_index; index++) { |
| 264 | ipa3_del_qmap_hdr(rmnet_ipa3_ctx->mux_channel[index].hdr_hdl); |
| 265 | rmnet_ipa3_ctx->mux_channel[index].hdr_hdl = 0; |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | static int ipa3_add_qmap_hdr(uint32_t mux_id, uint32_t *hdr_hdl) |
| 270 | { |
| 271 | struct ipa_ioc_add_hdr *hdr; |
| 272 | struct ipa_hdr_add *hdr_entry; |
| 273 | char hdr_name[IPA_RESOURCE_NAME_MAX]; |
| 274 | u32 pyld_sz; |
| 275 | int ret; |
| 276 | |
| 277 | pyld_sz = sizeof(struct ipa_ioc_add_hdr) + 1 * |
| 278 | sizeof(struct ipa_hdr_add); |
| 279 | hdr = kzalloc(pyld_sz, GFP_KERNEL); |
| 280 | if (!hdr) { |
| 281 | IPAWANERR("fail to alloc exception hdr\n"); |
| 282 | return -ENOMEM; |
| 283 | } |
| 284 | hdr->num_hdrs = 1; |
| 285 | hdr->commit = 1; |
| 286 | hdr_entry = &hdr->hdr[0]; |
| 287 | |
| 288 | snprintf(hdr_name, IPA_RESOURCE_NAME_MAX, "%s%d", |
| 289 | A2_MUX_HDR_NAME_V4_PREF, |
| 290 | mux_id); |
| 291 | strlcpy(hdr_entry->name, hdr_name, |
| 292 | IPA_RESOURCE_NAME_MAX); |
| 293 | |
| 294 | hdr_entry->hdr_len = IPA_QMAP_HEADER_LENGTH; /* 4 bytes */ |
| 295 | hdr_entry->hdr[1] = (uint8_t) mux_id; |
| 296 | IPAWANDBG("header (%s) with mux-id: (%d)\n", |
| 297 | hdr_name, |
| 298 | hdr_entry->hdr[1]); |
| 299 | if (ipa3_add_hdr(hdr)) { |
| 300 | IPAWANERR("fail to add IPA_QMAP hdr\n"); |
| 301 | ret = -EPERM; |
| 302 | goto bail; |
| 303 | } |
| 304 | |
| 305 | if (hdr_entry->status) { |
| 306 | IPAWANERR("fail to add IPA_QMAP hdr\n"); |
| 307 | ret = -EPERM; |
| 308 | goto bail; |
| 309 | } |
| 310 | |
| 311 | ret = 0; |
| 312 | *hdr_hdl = hdr_entry->hdr_hdl; |
| 313 | bail: |
| 314 | kfree(hdr); |
| 315 | return ret; |
| 316 | } |
| 317 | |
| 318 | /** |
| 319 | * ipa3_setup_dflt_wan_rt_tables() - Setup default wan routing tables |
| 320 | * |
| 321 | * Return codes: |
| 322 | * 0: success |
| 323 | * -ENOMEM: failed to allocate memory |
| 324 | * -EPERM: failed to add the tables |
| 325 | */ |
| 326 | static int ipa3_setup_dflt_wan_rt_tables(void) |
| 327 | { |
| 328 | struct ipa_ioc_add_rt_rule *rt_rule; |
| 329 | struct ipa_rt_rule_add *rt_rule_entry; |
| 330 | |
| 331 | rt_rule = |
| 332 | kzalloc(sizeof(struct ipa_ioc_add_rt_rule) + 1 * |
| 333 | sizeof(struct ipa_rt_rule_add), GFP_KERNEL); |
| 334 | if (!rt_rule) { |
| 335 | IPAWANERR("fail to alloc mem\n"); |
| 336 | return -ENOMEM; |
| 337 | } |
| 338 | /* setup a default v4 route to point to Apps */ |
| 339 | rt_rule->num_rules = 1; |
| 340 | rt_rule->commit = 1; |
| 341 | rt_rule->ip = IPA_IP_v4; |
| 342 | strlcpy(rt_rule->rt_tbl_name, IPA_DFLT_WAN_RT_TBL_NAME, |
| 343 | IPA_RESOURCE_NAME_MAX); |
| 344 | |
| 345 | rt_rule_entry = &rt_rule->rules[0]; |
| 346 | rt_rule_entry->at_rear = 1; |
| 347 | rt_rule_entry->rule.dst = IPA_CLIENT_APPS_WAN_CONS; |
| 348 | rt_rule_entry->rule.hdr_hdl = rmnet_ipa3_ctx->qmap_hdr_hdl; |
| 349 | |
| 350 | if (ipa3_add_rt_rule(rt_rule)) { |
| 351 | IPAWANERR("fail to add dflt_wan v4 rule\n"); |
| 352 | kfree(rt_rule); |
| 353 | return -EPERM; |
| 354 | } |
| 355 | |
| 356 | IPAWANDBG("dflt v4 rt rule hdl=%x\n", rt_rule_entry->rt_rule_hdl); |
| 357 | rmnet_ipa3_ctx->dflt_v4_wan_rt_hdl = rt_rule_entry->rt_rule_hdl; |
| 358 | |
| 359 | /* setup a default v6 route to point to A5 */ |
| 360 | rt_rule->ip = IPA_IP_v6; |
| 361 | if (ipa3_add_rt_rule(rt_rule)) { |
| 362 | IPAWANERR("fail to add dflt_wan v6 rule\n"); |
| 363 | kfree(rt_rule); |
| 364 | return -EPERM; |
| 365 | } |
| 366 | IPAWANDBG("dflt v6 rt rule hdl=%x\n", rt_rule_entry->rt_rule_hdl); |
| 367 | rmnet_ipa3_ctx->dflt_v6_wan_rt_hdl = rt_rule_entry->rt_rule_hdl; |
| 368 | |
| 369 | kfree(rt_rule); |
| 370 | return 0; |
| 371 | } |
| 372 | |
| 373 | static void ipa3_del_dflt_wan_rt_tables(void) |
| 374 | { |
| 375 | struct ipa_ioc_del_rt_rule *rt_rule; |
| 376 | struct ipa_rt_rule_del *rt_rule_entry; |
| 377 | int len; |
| 378 | |
| 379 | len = sizeof(struct ipa_ioc_del_rt_rule) + 1 * |
| 380 | sizeof(struct ipa_rt_rule_del); |
| 381 | rt_rule = kzalloc(len, GFP_KERNEL); |
| 382 | if (!rt_rule) { |
| 383 | IPAWANERR("unable to allocate memory for del route rule\n"); |
| 384 | return; |
| 385 | } |
| 386 | |
| 387 | memset(rt_rule, 0, len); |
| 388 | rt_rule->commit = 1; |
| 389 | rt_rule->num_hdls = 1; |
| 390 | rt_rule->ip = IPA_IP_v4; |
| 391 | |
| 392 | rt_rule_entry = &rt_rule->hdl[0]; |
| 393 | rt_rule_entry->status = -1; |
| 394 | rt_rule_entry->hdl = rmnet_ipa3_ctx->dflt_v4_wan_rt_hdl; |
| 395 | |
| 396 | IPAWANERR("Deleting Route hdl:(0x%x) with ip type: %d\n", |
| 397 | rt_rule_entry->hdl, IPA_IP_v4); |
| 398 | if (ipa3_del_rt_rule(rt_rule) || |
| 399 | (rt_rule_entry->status)) { |
| 400 | IPAWANERR("Routing rule deletion failed!\n"); |
| 401 | } |
| 402 | |
| 403 | rt_rule->ip = IPA_IP_v6; |
| 404 | rt_rule_entry->hdl = rmnet_ipa3_ctx->dflt_v6_wan_rt_hdl; |
| 405 | IPAWANERR("Deleting Route hdl:(0x%x) with ip type: %d\n", |
| 406 | rt_rule_entry->hdl, IPA_IP_v6); |
| 407 | if (ipa3_del_rt_rule(rt_rule) || |
| 408 | (rt_rule_entry->status)) { |
| 409 | IPAWANERR("Routing rule deletion failed!\n"); |
| 410 | } |
| 411 | |
| 412 | kfree(rt_rule); |
| 413 | } |
| 414 | |
| 415 | int ipa3_copy_ul_filter_rule_to_ipa(struct ipa_install_fltr_rule_req_msg_v01 |
| 416 | *rule_req) |
| 417 | { |
| 418 | int i, j; |
| 419 | |
| 420 | if (rule_req->filter_spec_ex_list_valid == true) { |
| 421 | rmnet_ipa3_ctx->num_q6_rules = |
| 422 | rule_req->filter_spec_ex_list_len; |
| 423 | IPAWANDBG("Received (%d) install_flt_req\n", |
| 424 | rmnet_ipa3_ctx->num_q6_rules); |
| 425 | } else { |
| 426 | rmnet_ipa3_ctx->num_q6_rules = 0; |
| 427 | IPAWANERR("got no UL rules from modem\n"); |
| 428 | return -EINVAL; |
| 429 | } |
| 430 | |
| 431 | /* copy UL filter rules from Modem*/ |
| 432 | for (i = 0; i < rmnet_ipa3_ctx->num_q6_rules; i++) { |
| 433 | /* check if rules overside the cache*/ |
| 434 | if (i == MAX_NUM_Q6_RULE) { |
| 435 | IPAWANERR("Reaching (%d) max cache ", |
| 436 | MAX_NUM_Q6_RULE); |
| 437 | IPAWANERR(" however total (%d)\n", |
| 438 | rmnet_ipa3_ctx->num_q6_rules); |
| 439 | goto failure; |
| 440 | } |
| 441 | ipa3_qmi_ctx->q6_ul_filter_rule[i].ip = |
| 442 | rule_req->filter_spec_ex_list[i].ip_type; |
| 443 | ipa3_qmi_ctx->q6_ul_filter_rule[i].action = |
| 444 | rule_req->filter_spec_ex_list[i].filter_action; |
| 445 | if (rule_req->filter_spec_ex_list[i]. |
| 446 | is_routing_table_index_valid == true) |
| 447 | ipa3_qmi_ctx->q6_ul_filter_rule[i].rt_tbl_idx = |
| 448 | rule_req->filter_spec_ex_list[i].route_table_index; |
| 449 | if (rule_req->filter_spec_ex_list[i].is_mux_id_valid == true) |
| 450 | ipa3_qmi_ctx->q6_ul_filter_rule[i].mux_id = |
| 451 | rule_req->filter_spec_ex_list[i].mux_id; |
| 452 | ipa3_qmi_ctx->q6_ul_filter_rule[i].rule_id = |
| 453 | rule_req->filter_spec_ex_list[i].rule_id; |
| 454 | ipa3_qmi_ctx->q6_ul_filter_rule[i].is_rule_hashable = |
| 455 | rule_req->filter_spec_ex_list[i].is_rule_hashable; |
| 456 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.rule_eq_bitmap = |
| 457 | rule_req->filter_spec_ex_list[i].filter_rule. |
| 458 | rule_eq_bitmap; |
| 459 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.tos_eq_present = |
| 460 | rule_req->filter_spec_ex_list[i].filter_rule. |
| 461 | tos_eq_present; |
| 462 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.tos_eq = |
| 463 | rule_req->filter_spec_ex_list[i].filter_rule.tos_eq; |
| 464 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 465 | protocol_eq_present = rule_req->filter_spec_ex_list[i]. |
| 466 | filter_rule.protocol_eq_present; |
| 467 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.protocol_eq = |
| 468 | rule_req->filter_spec_ex_list[i].filter_rule. |
| 469 | protocol_eq; |
| 470 | |
| 471 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 472 | num_ihl_offset_range_16 = |
| 473 | rule_req->filter_spec_ex_list[i]. |
| 474 | filter_rule.num_ihl_offset_range_16; |
| 475 | for (j = 0; j < ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 476 | num_ihl_offset_range_16; j++) { |
| 477 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 478 | ihl_offset_range_16[j].offset = rule_req-> |
| 479 | filter_spec_ex_list[i].filter_rule. |
| 480 | ihl_offset_range_16[j].offset; |
| 481 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 482 | ihl_offset_range_16[j].range_low = rule_req-> |
| 483 | filter_spec_ex_list[i].filter_rule. |
| 484 | ihl_offset_range_16[j].range_low; |
| 485 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 486 | ihl_offset_range_16[j].range_high = rule_req-> |
| 487 | filter_spec_ex_list[i].filter_rule. |
| 488 | ihl_offset_range_16[j].range_high; |
| 489 | } |
| 490 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.num_offset_meq_32 = |
| 491 | rule_req->filter_spec_ex_list[i].filter_rule. |
| 492 | num_offset_meq_32; |
| 493 | for (j = 0; j < ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 494 | num_offset_meq_32; j++) { |
| 495 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 496 | offset_meq_32[j].offset = |
| 497 | rule_req->filter_spec_ex_list[i]. |
| 498 | filter_rule.offset_meq_32[j].offset; |
| 499 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 500 | offset_meq_32[j].mask = |
| 501 | rule_req->filter_spec_ex_list[i]. |
| 502 | filter_rule.offset_meq_32[j].mask; |
| 503 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 504 | offset_meq_32[j].value = |
| 505 | rule_req->filter_spec_ex_list[i]. |
| 506 | filter_rule.offset_meq_32[j].value; |
| 507 | } |
| 508 | |
| 509 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.tc_eq_present = |
| 510 | rule_req->filter_spec_ex_list[i]. |
| 511 | filter_rule.tc_eq_present; |
| 512 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.tc_eq = |
| 513 | rule_req->filter_spec_ex_list[i].filter_rule.tc_eq; |
| 514 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.fl_eq_present = |
| 515 | rule_req->filter_spec_ex_list[i].filter_rule. |
| 516 | flow_eq_present; |
| 517 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.fl_eq = |
| 518 | rule_req->filter_spec_ex_list[i].filter_rule.flow_eq; |
| 519 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 520 | ihl_offset_eq_16_present = rule_req->filter_spec_ex_list[i]. |
| 521 | filter_rule.ihl_offset_eq_16_present; |
| 522 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 523 | ihl_offset_eq_16.offset = rule_req->filter_spec_ex_list[i]. |
| 524 | filter_rule.ihl_offset_eq_16.offset; |
| 525 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 526 | ihl_offset_eq_16.value = rule_req->filter_spec_ex_list[i]. |
| 527 | filter_rule.ihl_offset_eq_16.value; |
| 528 | |
| 529 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 530 | ihl_offset_eq_32_present = rule_req->filter_spec_ex_list[i]. |
| 531 | filter_rule.ihl_offset_eq_32_present; |
| 532 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 533 | ihl_offset_eq_32.offset = rule_req->filter_spec_ex_list[i]. |
| 534 | filter_rule.ihl_offset_eq_32.offset; |
| 535 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 536 | ihl_offset_eq_32.value = rule_req->filter_spec_ex_list[i]. |
| 537 | filter_rule.ihl_offset_eq_32.value; |
| 538 | |
| 539 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 540 | num_ihl_offset_meq_32 = rule_req->filter_spec_ex_list[i]. |
| 541 | filter_rule.num_ihl_offset_meq_32; |
| 542 | for (j = 0; j < ipa3_qmi_ctx->q6_ul_filter_rule[i]. |
| 543 | eq_attrib.num_ihl_offset_meq_32; j++) { |
| 544 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 545 | ihl_offset_meq_32[j].offset = rule_req-> |
| 546 | filter_spec_ex_list[i].filter_rule. |
| 547 | ihl_offset_meq_32[j].offset; |
| 548 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 549 | ihl_offset_meq_32[j].mask = rule_req-> |
| 550 | filter_spec_ex_list[i].filter_rule. |
| 551 | ihl_offset_meq_32[j].mask; |
| 552 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 553 | ihl_offset_meq_32[j].value = rule_req-> |
| 554 | filter_spec_ex_list[i].filter_rule. |
| 555 | ihl_offset_meq_32[j].value; |
| 556 | } |
| 557 | ipa3_qmi_ctx-> |
| 558 | q6_ul_filter_rule[i].eq_attrib.num_offset_meq_128 = |
| 559 | rule_req->filter_spec_ex_list[i].filter_rule. |
| 560 | num_offset_meq_128; |
| 561 | for (j = 0; j < ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 562 | num_offset_meq_128; j++) { |
| 563 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 564 | offset_meq_128[j].offset = rule_req-> |
| 565 | filter_spec_ex_list[i].filter_rule. |
| 566 | offset_meq_128[j].offset; |
| 567 | memcpy(ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 568 | offset_meq_128[j].mask, |
| 569 | rule_req->filter_spec_ex_list[i]. |
| 570 | filter_rule.offset_meq_128[j].mask, 16); |
| 571 | memcpy(ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 572 | offset_meq_128[j].value, rule_req-> |
| 573 | filter_spec_ex_list[i].filter_rule. |
| 574 | offset_meq_128[j].value, 16); |
| 575 | } |
| 576 | |
| 577 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 578 | metadata_meq32_present = |
| 579 | rule_req->filter_spec_ex_list[i]. |
| 580 | filter_rule.metadata_meq32_present; |
| 581 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 582 | metadata_meq32.offset = |
| 583 | rule_req->filter_spec_ex_list[i]. |
| 584 | filter_rule.metadata_meq32.offset; |
| 585 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 586 | metadata_meq32.mask = rule_req->filter_spec_ex_list[i]. |
| 587 | filter_rule.metadata_meq32.mask; |
| 588 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib.metadata_meq32. |
| 589 | value = rule_req->filter_spec_ex_list[i].filter_rule. |
| 590 | metadata_meq32.value; |
| 591 | ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib. |
| 592 | ipv4_frag_eq_present = rule_req->filter_spec_ex_list[i]. |
| 593 | filter_rule.ipv4_frag_eq_present; |
| 594 | } |
| 595 | |
| 596 | if (rule_req->xlat_filter_indices_list_valid) { |
| 597 | if (rule_req->xlat_filter_indices_list_len > |
| 598 | rmnet_ipa3_ctx->num_q6_rules) { |
| 599 | IPAWANERR("Number of xlat indices is not valid: %d\n", |
| 600 | rule_req->xlat_filter_indices_list_len); |
| 601 | goto failure; |
| 602 | } |
| 603 | IPAWANDBG("Receive %d XLAT indices: ", |
| 604 | rule_req->xlat_filter_indices_list_len); |
| 605 | for (i = 0; i < rule_req->xlat_filter_indices_list_len; i++) |
| 606 | IPAWANDBG("%d ", rule_req->xlat_filter_indices_list[i]); |
| 607 | IPAWANDBG("\n"); |
| 608 | |
| 609 | for (i = 0; i < rule_req->xlat_filter_indices_list_len; i++) { |
| 610 | if (rule_req->xlat_filter_indices_list[i] |
| 611 | >= rmnet_ipa3_ctx->num_q6_rules) { |
| 612 | IPAWANERR("Xlat rule idx is wrong: %d\n", |
| 613 | rule_req->xlat_filter_indices_list[i]); |
| 614 | goto failure; |
| 615 | } else { |
| 616 | ipa3_qmi_ctx->q6_ul_filter_rule |
| 617 | [rule_req->xlat_filter_indices_list[i]] |
| 618 | .is_xlat_rule = 1; |
| 619 | IPAWANDBG("Rule %d is xlat rule\n", |
| 620 | rule_req->xlat_filter_indices_list[i]); |
| 621 | } |
| 622 | } |
| 623 | } |
| 624 | goto success; |
| 625 | |
| 626 | failure: |
| 627 | rmnet_ipa3_ctx->num_q6_rules = 0; |
| 628 | memset(ipa3_qmi_ctx->q6_ul_filter_rule, 0, |
| 629 | sizeof(ipa3_qmi_ctx->q6_ul_filter_rule)); |
| 630 | return -EINVAL; |
| 631 | |
| 632 | success: |
| 633 | return 0; |
| 634 | } |
| 635 | |
| 636 | static int ipa3_wwan_add_ul_flt_rule_to_ipa(void) |
| 637 | { |
| 638 | u32 pyld_sz; |
| 639 | int i, retval = 0; |
| 640 | struct ipa_ioc_add_flt_rule *param; |
| 641 | struct ipa_flt_rule_add flt_rule_entry; |
| 642 | struct ipa_fltr_installed_notif_req_msg_v01 *req; |
| 643 | |
| 644 | pyld_sz = sizeof(struct ipa_ioc_add_flt_rule) + |
| 645 | sizeof(struct ipa_flt_rule_add); |
| 646 | param = kzalloc(pyld_sz, GFP_KERNEL); |
| 647 | if (!param) |
| 648 | return -ENOMEM; |
| 649 | |
| 650 | req = (struct ipa_fltr_installed_notif_req_msg_v01 *) |
| 651 | kzalloc(sizeof(struct ipa_fltr_installed_notif_req_msg_v01), |
| 652 | GFP_KERNEL); |
| 653 | if (!req) { |
| 654 | kfree(param); |
| 655 | return -ENOMEM; |
| 656 | } |
| 657 | |
| 658 | param->commit = 1; |
| 659 | param->ep = IPA_CLIENT_APPS_LAN_WAN_PROD; |
| 660 | param->global = false; |
| 661 | param->num_rules = (uint8_t)1; |
| 662 | |
| 663 | for (i = 0; i < rmnet_ipa3_ctx->num_q6_rules; i++) { |
| 664 | param->ip = ipa3_qmi_ctx->q6_ul_filter_rule[i].ip; |
| 665 | memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add)); |
| 666 | flt_rule_entry.at_rear = true; |
| 667 | flt_rule_entry.rule.action = |
| 668 | ipa3_qmi_ctx->q6_ul_filter_rule[i].action; |
| 669 | flt_rule_entry.rule.rt_tbl_idx |
| 670 | = ipa3_qmi_ctx->q6_ul_filter_rule[i].rt_tbl_idx; |
| 671 | flt_rule_entry.rule.retain_hdr = true; |
| 672 | flt_rule_entry.rule.hashable = |
| 673 | ipa3_qmi_ctx->q6_ul_filter_rule[i].is_rule_hashable; |
| 674 | flt_rule_entry.rule.rule_id = |
| 675 | ipa3_qmi_ctx->q6_ul_filter_rule[i].rule_id; |
| 676 | |
| 677 | /* debug rt-hdl*/ |
| 678 | IPAWANDBG("install-IPA index(%d),rt-tbl:(%d)\n", |
| 679 | i, flt_rule_entry.rule.rt_tbl_idx); |
| 680 | flt_rule_entry.rule.eq_attrib_type = true; |
| 681 | memcpy(&(flt_rule_entry.rule.eq_attrib), |
| 682 | &ipa3_qmi_ctx->q6_ul_filter_rule[i].eq_attrib, |
| 683 | sizeof(struct ipa_ipfltri_rule_eq)); |
| 684 | memcpy(&(param->rules[0]), &flt_rule_entry, |
| 685 | sizeof(struct ipa_flt_rule_add)); |
| 686 | if (ipa3_add_flt_rule((struct ipa_ioc_add_flt_rule *)param)) { |
| 687 | retval = -EFAULT; |
| 688 | IPAWANERR("add A7 UL filter rule(%d) failed\n", i); |
| 689 | } else { |
| 690 | /* store the rule handler */ |
| 691 | ipa3_qmi_ctx->q6_ul_filter_rule_hdl[i] = |
| 692 | param->rules[0].flt_rule_hdl; |
| 693 | } |
| 694 | } |
| 695 | |
| 696 | /* send ipa_fltr_installed_notif_req_msg_v01 to Q6*/ |
| 697 | req->source_pipe_index = |
| 698 | ipa3_get_ep_mapping(IPA_CLIENT_APPS_LAN_WAN_PROD); |
| 699 | req->install_status = QMI_RESULT_SUCCESS_V01; |
| 700 | req->rule_id_valid = 1; |
| 701 | req->rule_id_len = rmnet_ipa3_ctx->num_q6_rules; |
| 702 | for (i = 0; i < rmnet_ipa3_ctx->num_q6_rules; i++) { |
| 703 | req->rule_id[i] = |
| 704 | ipa3_qmi_ctx->q6_ul_filter_rule[i].rule_id; |
| 705 | } |
| 706 | if (ipa3_qmi_filter_notify_send(req)) { |
| 707 | IPAWANDBG("add filter rule index on A7-RX failed\n"); |
| 708 | retval = -EFAULT; |
| 709 | } |
| 710 | rmnet_ipa3_ctx->old_num_q6_rules = rmnet_ipa3_ctx->num_q6_rules; |
| 711 | IPAWANDBG("add (%d) filter rule index on A7-RX\n", |
| 712 | rmnet_ipa3_ctx->old_num_q6_rules); |
| 713 | kfree(param); |
| 714 | kfree(req); |
| 715 | return retval; |
| 716 | } |
| 717 | |
| 718 | static int ipa3_wwan_del_ul_flt_rule_to_ipa(void) |
| 719 | { |
| 720 | u32 pyld_sz; |
| 721 | int i, retval = 0; |
| 722 | struct ipa_ioc_del_flt_rule *param; |
| 723 | struct ipa_flt_rule_del flt_rule_entry; |
| 724 | |
| 725 | pyld_sz = sizeof(struct ipa_ioc_del_flt_rule) + |
| 726 | sizeof(struct ipa_flt_rule_del); |
| 727 | param = kzalloc(pyld_sz, GFP_KERNEL); |
| 728 | if (!param) { |
| 729 | IPAWANERR("kzalloc failed\n"); |
| 730 | return -ENOMEM; |
| 731 | } |
| 732 | |
| 733 | param->commit = 1; |
| 734 | param->num_hdls = (uint8_t) 1; |
| 735 | |
| 736 | for (i = 0; i < rmnet_ipa3_ctx->old_num_q6_rules; i++) { |
| 737 | param->ip = ipa3_qmi_ctx->q6_ul_filter_rule[i].ip; |
| 738 | memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_del)); |
| 739 | flt_rule_entry.hdl = ipa3_qmi_ctx->q6_ul_filter_rule_hdl[i]; |
| 740 | /* debug rt-hdl*/ |
| 741 | IPAWANDBG("delete-IPA rule index(%d)\n", i); |
| 742 | memcpy(&(param->hdl[0]), &flt_rule_entry, |
| 743 | sizeof(struct ipa_flt_rule_del)); |
| 744 | if (ipa3_del_flt_rule((struct ipa_ioc_del_flt_rule *)param)) { |
| 745 | IPAWANERR("del A7 UL filter rule(%d) failed\n", i); |
| 746 | kfree(param); |
| 747 | return -EFAULT; |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | /* set UL filter-rule add-indication */ |
| 752 | rmnet_ipa3_ctx->a7_ul_flt_set = false; |
| 753 | rmnet_ipa3_ctx->old_num_q6_rules = 0; |
| 754 | |
| 755 | kfree(param); |
| 756 | return retval; |
| 757 | } |
| 758 | |
| 759 | static int ipa3_find_mux_channel_index(uint32_t mux_id) |
| 760 | { |
| 761 | int i; |
| 762 | |
| 763 | for (i = 0; i < MAX_NUM_OF_MUX_CHANNEL; i++) { |
| 764 | if (mux_id == rmnet_ipa3_ctx->mux_channel[i].mux_id) |
| 765 | return i; |
| 766 | } |
| 767 | return MAX_NUM_OF_MUX_CHANNEL; |
| 768 | } |
| 769 | |
| 770 | static int find_vchannel_name_index(const char *vchannel_name) |
| 771 | { |
| 772 | int i; |
| 773 | |
| 774 | for (i = 0; i < MAX_NUM_OF_MUX_CHANNEL; i++) { |
| 775 | if (strcmp(rmnet_ipa3_ctx->mux_channel[i].vchannel_name, |
| 776 | vchannel_name) == 0) |
| 777 | return i; |
| 778 | } |
| 779 | return MAX_NUM_OF_MUX_CHANNEL; |
| 780 | } |
| 781 | |
| 782 | static int ipa3_wwan_register_to_ipa(int index) |
| 783 | { |
| 784 | struct ipa_tx_intf tx_properties = {0}; |
| 785 | struct ipa_ioc_tx_intf_prop tx_ioc_properties[2] = { {0}, {0} }; |
| 786 | struct ipa_ioc_tx_intf_prop *tx_ipv4_property; |
| 787 | struct ipa_ioc_tx_intf_prop *tx_ipv6_property; |
| 788 | struct ipa_rx_intf rx_properties = {0}; |
| 789 | struct ipa_ioc_rx_intf_prop rx_ioc_properties[2] = { {0}, {0} }; |
| 790 | struct ipa_ioc_rx_intf_prop *rx_ipv4_property; |
| 791 | struct ipa_ioc_rx_intf_prop *rx_ipv6_property; |
| 792 | struct ipa_ext_intf ext_properties = {0}; |
| 793 | struct ipa_ioc_ext_intf_prop *ext_ioc_properties; |
| 794 | u32 pyld_sz; |
| 795 | int ret = 0, i; |
| 796 | |
| 797 | IPAWANDBG("index(%d) device[%s]:\n", index, |
| 798 | rmnet_ipa3_ctx->mux_channel[index].vchannel_name); |
| 799 | if (!rmnet_ipa3_ctx->mux_channel[index].mux_hdr_set) { |
| 800 | ret = ipa3_add_qmap_hdr( |
| 801 | rmnet_ipa3_ctx->mux_channel[index].mux_id, |
| 802 | &rmnet_ipa3_ctx->mux_channel[index].hdr_hdl); |
| 803 | if (ret) { |
| 804 | IPAWANERR("ipa_add_mux_hdr failed (%d)\n", index); |
| 805 | return ret; |
| 806 | } |
| 807 | rmnet_ipa3_ctx->mux_channel[index].mux_hdr_set = true; |
| 808 | } |
| 809 | tx_properties.prop = tx_ioc_properties; |
| 810 | tx_ipv4_property = &tx_properties.prop[0]; |
| 811 | tx_ipv4_property->ip = IPA_IP_v4; |
| 812 | tx_ipv4_property->dst_pipe = IPA_CLIENT_APPS_WAN_CONS; |
| 813 | snprintf(tx_ipv4_property->hdr_name, IPA_RESOURCE_NAME_MAX, "%s%d", |
| 814 | A2_MUX_HDR_NAME_V4_PREF, |
| 815 | rmnet_ipa3_ctx->mux_channel[index].mux_id); |
| 816 | tx_ipv6_property = &tx_properties.prop[1]; |
| 817 | tx_ipv6_property->ip = IPA_IP_v6; |
| 818 | tx_ipv6_property->dst_pipe = IPA_CLIENT_APPS_WAN_CONS; |
| 819 | /* no need use A2_MUX_HDR_NAME_V6_PREF, same header */ |
| 820 | snprintf(tx_ipv6_property->hdr_name, IPA_RESOURCE_NAME_MAX, "%s%d", |
| 821 | A2_MUX_HDR_NAME_V4_PREF, |
| 822 | rmnet_ipa3_ctx->mux_channel[index].mux_id); |
| 823 | tx_properties.num_props = 2; |
| 824 | |
| 825 | rx_properties.prop = rx_ioc_properties; |
| 826 | rx_ipv4_property = &rx_properties.prop[0]; |
| 827 | rx_ipv4_property->ip = IPA_IP_v4; |
| 828 | rx_ipv4_property->attrib.attrib_mask |= IPA_FLT_META_DATA; |
| 829 | rx_ipv4_property->attrib.meta_data = |
| 830 | rmnet_ipa3_ctx->mux_channel[index].mux_id << WWAN_METADATA_SHFT; |
| 831 | rx_ipv4_property->attrib.meta_data_mask = WWAN_METADATA_MASK; |
| 832 | rx_ipv4_property->src_pipe = IPA_CLIENT_APPS_LAN_WAN_PROD; |
| 833 | rx_ipv6_property = &rx_properties.prop[1]; |
| 834 | rx_ipv6_property->ip = IPA_IP_v6; |
| 835 | rx_ipv6_property->attrib.attrib_mask |= IPA_FLT_META_DATA; |
| 836 | rx_ipv6_property->attrib.meta_data = |
| 837 | rmnet_ipa3_ctx->mux_channel[index].mux_id << WWAN_METADATA_SHFT; |
| 838 | rx_ipv6_property->attrib.meta_data_mask = WWAN_METADATA_MASK; |
| 839 | rx_ipv6_property->src_pipe = IPA_CLIENT_APPS_LAN_WAN_PROD; |
| 840 | rx_properties.num_props = 2; |
| 841 | |
| 842 | pyld_sz = rmnet_ipa3_ctx->num_q6_rules * |
| 843 | sizeof(struct ipa_ioc_ext_intf_prop); |
| 844 | ext_ioc_properties = kmalloc(pyld_sz, GFP_KERNEL); |
| 845 | if (!ext_ioc_properties) { |
| 846 | IPAWANERR("Error allocate memory\n"); |
| 847 | return -ENOMEM; |
| 848 | } |
| 849 | |
| 850 | ext_properties.prop = ext_ioc_properties; |
| 851 | ext_properties.excp_pipe_valid = true; |
| 852 | ext_properties.excp_pipe = IPA_CLIENT_APPS_WAN_CONS; |
| 853 | ext_properties.num_props = rmnet_ipa3_ctx->num_q6_rules; |
| 854 | for (i = 0; i < rmnet_ipa3_ctx->num_q6_rules; i++) { |
| 855 | memcpy(&(ext_properties.prop[i]), |
| 856 | &(ipa3_qmi_ctx->q6_ul_filter_rule[i]), |
| 857 | sizeof(struct ipa_ioc_ext_intf_prop)); |
| 858 | ext_properties.prop[i].mux_id = |
| 859 | rmnet_ipa3_ctx->mux_channel[index].mux_id; |
| 860 | IPAWANDBG("index %d ip: %d rt-tbl:%d\n", i, |
| 861 | ext_properties.prop[i].ip, |
| 862 | ext_properties.prop[i].rt_tbl_idx); |
| 863 | IPAWANDBG("action: %d mux:%d\n", |
| 864 | ext_properties.prop[i].action, |
| 865 | ext_properties.prop[i].mux_id); |
| 866 | } |
| 867 | ret = ipa3_register_intf_ext(rmnet_ipa3_ctx->mux_channel[index]. |
| 868 | vchannel_name, &tx_properties, |
| 869 | &rx_properties, &ext_properties); |
| 870 | if (ret) { |
| 871 | IPAWANERR("[%s]:ipa3_register_intf failed %d\n", |
| 872 | rmnet_ipa3_ctx->mux_channel[index].vchannel_name, ret); |
| 873 | goto fail; |
| 874 | } |
| 875 | rmnet_ipa3_ctx->mux_channel[index].ul_flt_reg = true; |
| 876 | fail: |
| 877 | kfree(ext_ioc_properties); |
| 878 | return ret; |
| 879 | } |
| 880 | |
| 881 | static void ipa3_cleanup_deregister_intf(void) |
| 882 | { |
| 883 | int i; |
| 884 | int ret; |
| 885 | |
| 886 | for (i = 0; i < rmnet_ipa3_ctx->rmnet_index; i++) { |
| 887 | if (rmnet_ipa3_ctx->mux_channel[i].ul_flt_reg) { |
| 888 | ret = ipa3_deregister_intf( |
| 889 | rmnet_ipa3_ctx->mux_channel[i].vchannel_name); |
| 890 | if (ret < 0) { |
| 891 | IPAWANERR("de-register device %s(%d) failed\n", |
| 892 | rmnet_ipa3_ctx->mux_channel[i]. |
| 893 | vchannel_name, |
| 894 | i); |
| 895 | return; |
| 896 | } |
| 897 | IPAWANDBG("de-register device %s(%d) success\n", |
| 898 | rmnet_ipa3_ctx->mux_channel[i].vchannel_name, |
| 899 | i); |
| 900 | } |
| 901 | rmnet_ipa3_ctx->mux_channel[i].ul_flt_reg = false; |
| 902 | } |
| 903 | } |
| 904 | |
| 905 | int ipa3_wwan_update_mux_channel_prop(void) |
| 906 | { |
| 907 | int ret = 0, i; |
| 908 | /* install UL filter rules */ |
| 909 | if (rmnet_ipa3_ctx->egress_set) { |
| 910 | if (ipa3_qmi_ctx->modem_cfg_emb_pipe_flt == false) { |
| 911 | IPAWANDBG("setup UL filter rules\n"); |
| 912 | if (rmnet_ipa3_ctx->a7_ul_flt_set) { |
| 913 | IPAWANDBG("del previous UL filter rules\n"); |
| 914 | /* delete rule hdlers */ |
| 915 | ret = ipa3_wwan_del_ul_flt_rule_to_ipa(); |
| 916 | if (ret) { |
| 917 | IPAWANERR("failed to del old rules\n"); |
| 918 | return -EINVAL; |
| 919 | } |
| 920 | IPAWANDBG("deleted old UL rules\n"); |
| 921 | } |
| 922 | ret = ipa3_wwan_add_ul_flt_rule_to_ipa(); |
| 923 | } |
| 924 | if (ret) |
| 925 | IPAWANERR("failed to install UL rules\n"); |
| 926 | else |
| 927 | rmnet_ipa3_ctx->a7_ul_flt_set = true; |
| 928 | } |
| 929 | /* update Tx/Rx/Ext property */ |
| 930 | IPAWANDBG("update Tx/Rx/Ext property in IPA\n"); |
| 931 | if (rmnet_ipa3_ctx->rmnet_index == 0) { |
| 932 | IPAWANDBG("no Tx/Rx/Ext property registered in IPA\n"); |
| 933 | return ret; |
| 934 | } |
| 935 | |
| 936 | ipa3_cleanup_deregister_intf(); |
| 937 | |
| 938 | for (i = 0; i < rmnet_ipa3_ctx->rmnet_index; i++) { |
| 939 | ret = ipa3_wwan_register_to_ipa(i); |
| 940 | if (ret < 0) { |
| 941 | IPAWANERR("failed to re-regist %s, mux %d, index %d\n", |
| 942 | rmnet_ipa3_ctx->mux_channel[i].vchannel_name, |
| 943 | rmnet_ipa3_ctx->mux_channel[i].mux_id, |
| 944 | i); |
| 945 | return -ENODEV; |
| 946 | } |
| 947 | IPAWANERR("dev(%s) has registered to IPA\n", |
| 948 | rmnet_ipa3_ctx->mux_channel[i].vchannel_name); |
| 949 | rmnet_ipa3_ctx->mux_channel[i].ul_flt_reg = true; |
| 950 | } |
| 951 | return ret; |
| 952 | } |
| 953 | |
| 954 | #ifdef INIT_COMPLETION |
| 955 | #define reinit_completion(x) INIT_COMPLETION(*(x)) |
| 956 | #endif /* INIT_COMPLETION */ |
| 957 | |
| 958 | static int __ipa_wwan_open(struct net_device *dev) |
| 959 | { |
| 960 | struct ipa3_wwan_private *wwan_ptr = netdev_priv(dev); |
| 961 | |
| 962 | IPAWANDBG("[%s] __wwan_open()\n", dev->name); |
| 963 | if (wwan_ptr->device_status != WWAN_DEVICE_ACTIVE) |
| 964 | reinit_completion(&wwan_ptr->resource_granted_completion); |
| 965 | wwan_ptr->device_status = WWAN_DEVICE_ACTIVE; |
| 966 | |
| 967 | if (ipa3_rmnet_res.ipa_napi_enable) |
| 968 | napi_enable(&(wwan_ptr->napi)); |
| 969 | return 0; |
| 970 | } |
| 971 | |
| 972 | /** |
| 973 | * wwan_open() - Opens the wwan network interface. Opens logical |
| 974 | * channel on A2 MUX driver and starts the network stack queue |
| 975 | * |
| 976 | * @dev: network device |
| 977 | * |
| 978 | * Return codes: |
| 979 | * 0: success |
| 980 | * -ENODEV: Error while opening logical channel on A2 MUX driver |
| 981 | */ |
| 982 | static int ipa3_wwan_open(struct net_device *dev) |
| 983 | { |
| 984 | int rc = 0; |
| 985 | |
| 986 | IPAWANDBG("[%s] wwan_open()\n", dev->name); |
| 987 | rc = __ipa_wwan_open(dev); |
| 988 | if (rc == 0) |
| 989 | netif_start_queue(dev); |
| 990 | return rc; |
| 991 | } |
| 992 | |
| 993 | static int __ipa_wwan_close(struct net_device *dev) |
| 994 | { |
| 995 | struct ipa3_wwan_private *wwan_ptr = netdev_priv(dev); |
| 996 | int rc = 0; |
| 997 | |
| 998 | if (wwan_ptr->device_status == WWAN_DEVICE_ACTIVE) { |
| 999 | wwan_ptr->device_status = WWAN_DEVICE_INACTIVE; |
| 1000 | /* do not close wwan port once up, this causes |
| 1001 | * remote side to hang if tried to open again |
| 1002 | */ |
| 1003 | reinit_completion(&wwan_ptr->resource_granted_completion); |
| 1004 | rc = ipa3_deregister_intf(dev->name); |
| 1005 | if (rc) { |
| 1006 | IPAWANERR("[%s]: ipa3_deregister_intf failed %d\n", |
| 1007 | dev->name, rc); |
| 1008 | return rc; |
| 1009 | } |
| 1010 | return rc; |
| 1011 | } else { |
| 1012 | return -EBADF; |
| 1013 | } |
| 1014 | } |
| 1015 | |
| 1016 | /** |
| 1017 | * ipa3_wwan_stop() - Stops the wwan network interface. Closes |
| 1018 | * logical channel on A2 MUX driver and stops the network stack |
| 1019 | * queue |
| 1020 | * |
| 1021 | * @dev: network device |
| 1022 | * |
| 1023 | * Return codes: |
| 1024 | * 0: success |
| 1025 | * -ENODEV: Error while opening logical channel on A2 MUX driver |
| 1026 | */ |
| 1027 | static int ipa3_wwan_stop(struct net_device *dev) |
| 1028 | { |
| 1029 | IPAWANDBG("[%s] ipa3_wwan_stop()\n", dev->name); |
| 1030 | __ipa_wwan_close(dev); |
| 1031 | netif_stop_queue(dev); |
| 1032 | return 0; |
| 1033 | } |
| 1034 | |
| 1035 | static int ipa3_wwan_change_mtu(struct net_device *dev, int new_mtu) |
| 1036 | { |
| 1037 | if (0 > new_mtu || WWAN_DATA_LEN < new_mtu) |
| 1038 | return -EINVAL; |
| 1039 | IPAWANDBG("[%s] MTU change: old=%d new=%d\n", |
| 1040 | dev->name, dev->mtu, new_mtu); |
| 1041 | dev->mtu = new_mtu; |
| 1042 | return 0; |
| 1043 | } |
| 1044 | |
| 1045 | /** |
| 1046 | * ipa3_wwan_xmit() - Transmits an skb. |
| 1047 | * |
| 1048 | * @skb: skb to be transmitted |
| 1049 | * @dev: network device |
| 1050 | * |
| 1051 | * Return codes: |
| 1052 | * 0: success |
| 1053 | * NETDEV_TX_BUSY: Error while transmitting the skb. Try again |
| 1054 | * later |
| 1055 | * -EFAULT: Error while transmitting the skb |
| 1056 | */ |
| 1057 | static int ipa3_wwan_xmit(struct sk_buff *skb, struct net_device *dev) |
| 1058 | { |
| 1059 | int ret = 0; |
| 1060 | bool qmap_check; |
| 1061 | struct ipa3_wwan_private *wwan_ptr = netdev_priv(dev); |
| 1062 | struct ipa_tx_meta meta; |
| 1063 | |
| 1064 | if (skb->protocol != htons(ETH_P_MAP)) { |
| 1065 | IPAWANDBG_LOW |
| 1066 | ("SW filtering out none QMAP packet received from %s", |
| 1067 | current->comm); |
| 1068 | return NETDEV_TX_OK; |
| 1069 | } |
| 1070 | |
| 1071 | qmap_check = RMNET_MAP_GET_CD_BIT(skb); |
| 1072 | if (netif_queue_stopped(dev)) { |
| 1073 | if (qmap_check && |
| 1074 | atomic_read(&wwan_ptr->outstanding_pkts) < |
| 1075 | wwan_ptr->outstanding_high_ctl) { |
| 1076 | pr_err("[%s]Queue stop, send ctrl pkts\n", dev->name); |
| 1077 | goto send; |
| 1078 | } else { |
| 1079 | pr_err("[%s]fatal: ipa_wwan_xmit stopped\n", dev->name); |
| 1080 | return NETDEV_TX_BUSY; |
| 1081 | } |
| 1082 | } |
| 1083 | |
| 1084 | /* checking High WM hit */ |
| 1085 | if (atomic_read(&wwan_ptr->outstanding_pkts) >= |
| 1086 | wwan_ptr->outstanding_high) { |
| 1087 | if (!qmap_check) { |
| 1088 | IPAWANDBG_LOW("pending(%d)/(%d)- stop(%d)\n", |
| 1089 | atomic_read(&wwan_ptr->outstanding_pkts), |
| 1090 | wwan_ptr->outstanding_high, |
| 1091 | netif_queue_stopped(dev)); |
| 1092 | IPAWANDBG_LOW("qmap_chk(%d)\n", qmap_check); |
| 1093 | netif_stop_queue(dev); |
| 1094 | return NETDEV_TX_BUSY; |
| 1095 | } |
| 1096 | } |
| 1097 | |
| 1098 | send: |
| 1099 | /* IPA_RM checking start */ |
| 1100 | ret = ipa_rm_inactivity_timer_request_resource( |
| 1101 | IPA_RM_RESOURCE_WWAN_0_PROD); |
| 1102 | if (ret == -EINPROGRESS) { |
| 1103 | netif_stop_queue(dev); |
| 1104 | return NETDEV_TX_BUSY; |
| 1105 | } |
| 1106 | if (ret) { |
| 1107 | pr_err("[%s] fatal: ipa rm timer request resource failed %d\n", |
| 1108 | dev->name, ret); |
| 1109 | return -EFAULT; |
| 1110 | } |
| 1111 | /* IPA_RM checking end */ |
| 1112 | |
| 1113 | if (RMNET_MAP_GET_CD_BIT(skb)) { |
| 1114 | memset(&meta, 0, sizeof(meta)); |
| 1115 | meta.pkt_init_dst_ep_valid = true; |
| 1116 | meta.pkt_init_dst_ep_remote = true; |
| 1117 | ret = ipa3_tx_dp(IPA_CLIENT_Q6_LAN_CONS, skb, &meta); |
| 1118 | } else { |
| 1119 | ret = ipa3_tx_dp(IPA_CLIENT_APPS_LAN_WAN_PROD, skb, NULL); |
| 1120 | } |
| 1121 | |
| 1122 | if (ret) { |
| 1123 | ret = NETDEV_TX_BUSY; |
| 1124 | dev->stats.tx_dropped++; |
| 1125 | goto out; |
| 1126 | } |
| 1127 | |
| 1128 | atomic_inc(&wwan_ptr->outstanding_pkts); |
| 1129 | dev->stats.tx_packets++; |
| 1130 | dev->stats.tx_bytes += skb->len; |
| 1131 | ret = NETDEV_TX_OK; |
| 1132 | out: |
| 1133 | ipa_rm_inactivity_timer_release_resource( |
| 1134 | IPA_RM_RESOURCE_WWAN_0_PROD); |
| 1135 | return ret; |
| 1136 | } |
| 1137 | |
| 1138 | static void ipa3_wwan_tx_timeout(struct net_device *dev) |
| 1139 | { |
| 1140 | IPAWANERR("[%s] ipa3_wwan_tx_timeout(), data stall in UL\n", dev->name); |
| 1141 | } |
| 1142 | |
| 1143 | /** |
| 1144 | * apps_ipa_tx_complete_notify() - Rx notify |
| 1145 | * |
| 1146 | * @priv: driver context |
| 1147 | * @evt: event type |
| 1148 | * @data: data provided with event |
| 1149 | * |
| 1150 | * Check that the packet is the one we sent and release it |
| 1151 | * This function will be called in defered context in IPA wq. |
| 1152 | */ |
| 1153 | static void apps_ipa_tx_complete_notify(void *priv, |
| 1154 | enum ipa_dp_evt_type evt, |
| 1155 | unsigned long data) |
| 1156 | { |
| 1157 | struct sk_buff *skb = (struct sk_buff *)data; |
| 1158 | struct net_device *dev = (struct net_device *)priv; |
| 1159 | struct ipa3_wwan_private *wwan_ptr; |
| 1160 | |
| 1161 | if (dev != IPA_NETDEV()) { |
| 1162 | IPAWANDBG("Received pre-SSR packet completion\n"); |
| 1163 | dev_kfree_skb_any(skb); |
| 1164 | return; |
| 1165 | } |
| 1166 | |
| 1167 | if (evt != IPA_WRITE_DONE) { |
| 1168 | IPAWANERR("unsupported evt on Tx callback, Drop the packet\n"); |
| 1169 | dev_kfree_skb_any(skb); |
| 1170 | dev->stats.tx_dropped++; |
| 1171 | return; |
| 1172 | } |
| 1173 | |
| 1174 | wwan_ptr = netdev_priv(dev); |
| 1175 | atomic_dec(&wwan_ptr->outstanding_pkts); |
| 1176 | __netif_tx_lock_bh(netdev_get_tx_queue(dev, 0)); |
| 1177 | if (!atomic_read(&rmnet_ipa3_ctx->is_ssr) && |
| 1178 | netif_queue_stopped(wwan_ptr->net) && |
| 1179 | atomic_read(&wwan_ptr->outstanding_pkts) < |
| 1180 | (wwan_ptr->outstanding_low)) { |
| 1181 | IPAWANDBG_LOW("Outstanding low (%d) - waking up queue\n", |
| 1182 | wwan_ptr->outstanding_low); |
| 1183 | netif_wake_queue(wwan_ptr->net); |
| 1184 | } |
| 1185 | __netif_tx_unlock_bh(netdev_get_tx_queue(dev, 0)); |
| 1186 | dev_kfree_skb_any(skb); |
| 1187 | ipa_rm_inactivity_timer_release_resource( |
| 1188 | IPA_RM_RESOURCE_WWAN_0_PROD); |
| 1189 | } |
| 1190 | |
| 1191 | /** |
| 1192 | * apps_ipa_packet_receive_notify() - Rx notify |
| 1193 | * |
| 1194 | * @priv: driver context |
| 1195 | * @evt: event type |
| 1196 | * @data: data provided with event |
| 1197 | * |
| 1198 | * IPA will pass a packet to the Linux network stack with skb->data |
| 1199 | */ |
| 1200 | static void apps_ipa_packet_receive_notify(void *priv, |
| 1201 | enum ipa_dp_evt_type evt, |
| 1202 | unsigned long data) |
| 1203 | { |
| 1204 | struct net_device *dev = (struct net_device *)priv; |
| 1205 | |
| 1206 | if (evt == IPA_RECEIVE) { |
| 1207 | struct sk_buff *skb = (struct sk_buff *)data; |
| 1208 | int result; |
| 1209 | unsigned int packet_len = skb->len; |
| 1210 | |
| 1211 | IPAWANDBG_LOW("Rx packet was received"); |
| 1212 | skb->dev = IPA_NETDEV(); |
| 1213 | skb->protocol = htons(ETH_P_MAP); |
| 1214 | |
| 1215 | if (ipa3_rmnet_res.ipa_napi_enable) { |
| 1216 | trace_rmnet_ipa_netif_rcv_skb3(dev->stats.rx_packets); |
| 1217 | result = netif_receive_skb(skb); |
| 1218 | } else { |
| 1219 | if (dev->stats.rx_packets % IPA_WWAN_RX_SOFTIRQ_THRESH |
| 1220 | == 0) { |
| 1221 | trace_rmnet_ipa_netifni3(dev->stats.rx_packets); |
| 1222 | result = netif_rx_ni(skb); |
| 1223 | } else { |
| 1224 | trace_rmnet_ipa_netifrx3(dev->stats.rx_packets); |
| 1225 | result = netif_rx(skb); |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | if (result) { |
| 1230 | pr_err_ratelimited(DEV_NAME " %s:%d fail on netif_receive_skb\n", |
| 1231 | __func__, __LINE__); |
| 1232 | dev->stats.rx_dropped++; |
| 1233 | } |
| 1234 | dev->stats.rx_packets++; |
| 1235 | dev->stats.rx_bytes += packet_len; |
| 1236 | } else if (evt == IPA_CLIENT_START_POLL) |
| 1237 | ipa3_rmnet_rx_cb(priv); |
| 1238 | else if (evt == IPA_CLIENT_COMP_NAPI) { |
| 1239 | if (ipa3_rmnet_res.ipa_napi_enable) |
| 1240 | napi_complete(&(rmnet_ipa3_ctx->wwan_priv->napi)); |
| 1241 | } else |
| 1242 | IPAWANERR("Invalid evt %d received in wan_ipa_receive\n", evt); |
| 1243 | } |
| 1244 | |
| 1245 | /** |
| 1246 | * ipa3_wwan_ioctl() - I/O control for wwan network driver. |
| 1247 | * |
| 1248 | * @dev: network device |
| 1249 | * @ifr: ignored |
| 1250 | * @cmd: cmd to be excecuded. can be one of the following: |
| 1251 | * IPA_WWAN_IOCTL_OPEN - Open the network interface |
| 1252 | * IPA_WWAN_IOCTL_CLOSE - Close the network interface |
| 1253 | * |
| 1254 | * Return codes: |
| 1255 | * 0: success |
| 1256 | * NETDEV_TX_BUSY: Error while transmitting the skb. Try again |
| 1257 | * later |
| 1258 | * -EFAULT: Error while transmitting the skb |
| 1259 | */ |
| 1260 | static int ipa3_wwan_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
| 1261 | { |
| 1262 | int rc = 0; |
| 1263 | int mru = 1000, epid = 1, mux_index, len; |
| 1264 | struct ipa_msg_meta msg_meta; |
| 1265 | struct ipa_wan_msg *wan_msg = NULL; |
| 1266 | struct rmnet_ioctl_extended_s extend_ioctl_data; |
| 1267 | struct rmnet_ioctl_data_s ioctl_data; |
| 1268 | struct ipa3_rmnet_mux_val *mux_channel; |
| 1269 | int rmnet_index; |
| 1270 | |
| 1271 | IPAWANDBG("rmnet_ipa got ioctl number 0x%08x", cmd); |
| 1272 | switch (cmd) { |
| 1273 | /* Set Ethernet protocol */ |
| 1274 | case RMNET_IOCTL_SET_LLP_ETHERNET: |
| 1275 | break; |
| 1276 | /* Set RAWIP protocol */ |
| 1277 | case RMNET_IOCTL_SET_LLP_IP: |
| 1278 | break; |
| 1279 | /* Get link protocol */ |
| 1280 | case RMNET_IOCTL_GET_LLP: |
| 1281 | ioctl_data.u.operation_mode = RMNET_MODE_LLP_IP; |
| 1282 | if (copy_to_user(ifr->ifr_ifru.ifru_data, &ioctl_data, |
| 1283 | sizeof(struct rmnet_ioctl_data_s))) |
| 1284 | rc = -EFAULT; |
| 1285 | break; |
| 1286 | /* Set QoS header enabled */ |
| 1287 | case RMNET_IOCTL_SET_QOS_ENABLE: |
| 1288 | return -EINVAL; |
| 1289 | /* Set QoS header disabled */ |
| 1290 | case RMNET_IOCTL_SET_QOS_DISABLE: |
| 1291 | break; |
| 1292 | /* Get QoS header state */ |
| 1293 | case RMNET_IOCTL_GET_QOS: |
| 1294 | ioctl_data.u.operation_mode = RMNET_MODE_NONE; |
| 1295 | if (copy_to_user(ifr->ifr_ifru.ifru_data, &ioctl_data, |
| 1296 | sizeof(struct rmnet_ioctl_data_s))) |
| 1297 | rc = -EFAULT; |
| 1298 | break; |
| 1299 | /* Get operation mode */ |
| 1300 | case RMNET_IOCTL_GET_OPMODE: |
| 1301 | ioctl_data.u.operation_mode = RMNET_MODE_LLP_IP; |
| 1302 | if (copy_to_user(ifr->ifr_ifru.ifru_data, &ioctl_data, |
| 1303 | sizeof(struct rmnet_ioctl_data_s))) |
| 1304 | rc = -EFAULT; |
| 1305 | break; |
| 1306 | /* Open transport port */ |
| 1307 | case RMNET_IOCTL_OPEN: |
| 1308 | break; |
| 1309 | /* Close transport port */ |
| 1310 | case RMNET_IOCTL_CLOSE: |
| 1311 | break; |
| 1312 | /* Flow enable */ |
| 1313 | case RMNET_IOCTL_FLOW_ENABLE: |
| 1314 | IPAWANDBG("Received flow enable\n"); |
| 1315 | if (copy_from_user(&ioctl_data, ifr->ifr_ifru.ifru_data, |
| 1316 | sizeof(struct rmnet_ioctl_data_s))) { |
| 1317 | rc = -EFAULT; |
| 1318 | break; |
| 1319 | } |
| 1320 | ipa3_flow_control(IPA_CLIENT_USB_PROD, true, |
| 1321 | ioctl_data.u.tcm_handle); |
| 1322 | break; |
| 1323 | /* Flow disable */ |
| 1324 | case RMNET_IOCTL_FLOW_DISABLE: |
| 1325 | IPAWANDBG("Received flow disable\n"); |
| 1326 | if (copy_from_user(&ioctl_data, ifr->ifr_ifru.ifru_data, |
| 1327 | sizeof(struct rmnet_ioctl_data_s))) { |
| 1328 | rc = -EFAULT; |
| 1329 | break; |
| 1330 | } |
| 1331 | ipa3_flow_control(IPA_CLIENT_USB_PROD, false, |
| 1332 | ioctl_data.u.tcm_handle); |
| 1333 | break; |
| 1334 | /* Set flow handle */ |
| 1335 | case RMNET_IOCTL_FLOW_SET_HNDL: |
| 1336 | break; |
| 1337 | |
| 1338 | /* Extended IOCTLs */ |
| 1339 | case RMNET_IOCTL_EXTENDED: |
| 1340 | IPAWANDBG("get ioctl: RMNET_IOCTL_EXTENDED\n"); |
| 1341 | if (copy_from_user(&extend_ioctl_data, |
| 1342 | (u8 *)ifr->ifr_ifru.ifru_data, |
| 1343 | sizeof(struct rmnet_ioctl_extended_s))) { |
| 1344 | IPAWANERR("failed to copy extended ioctl data\n"); |
| 1345 | rc = -EFAULT; |
| 1346 | break; |
| 1347 | } |
| 1348 | switch (extend_ioctl_data.extended_ioctl) { |
| 1349 | /* Get features */ |
| 1350 | case RMNET_IOCTL_GET_SUPPORTED_FEATURES: |
| 1351 | IPAWANDBG("get RMNET_IOCTL_GET_SUPPORTED_FEATURES\n"); |
| 1352 | extend_ioctl_data.u.data = |
| 1353 | (RMNET_IOCTL_FEAT_NOTIFY_MUX_CHANNEL | |
| 1354 | RMNET_IOCTL_FEAT_SET_EGRESS_DATA_FORMAT | |
| 1355 | RMNET_IOCTL_FEAT_SET_INGRESS_DATA_FORMAT); |
| 1356 | if (copy_to_user((u8 *)ifr->ifr_ifru.ifru_data, |
| 1357 | &extend_ioctl_data, |
| 1358 | sizeof(struct rmnet_ioctl_extended_s))) |
| 1359 | rc = -EFAULT; |
| 1360 | break; |
| 1361 | /* Set MRU */ |
| 1362 | case RMNET_IOCTL_SET_MRU: |
| 1363 | mru = extend_ioctl_data.u.data; |
| 1364 | IPAWANDBG("get MRU size %d\n", |
| 1365 | extend_ioctl_data.u.data); |
| 1366 | break; |
| 1367 | /* Get MRU */ |
| 1368 | case RMNET_IOCTL_GET_MRU: |
| 1369 | extend_ioctl_data.u.data = mru; |
| 1370 | if (copy_to_user((u8 *)ifr->ifr_ifru.ifru_data, |
| 1371 | &extend_ioctl_data, |
| 1372 | sizeof(struct rmnet_ioctl_extended_s))) |
| 1373 | rc = -EFAULT; |
| 1374 | break; |
| 1375 | /* GET SG support */ |
| 1376 | case RMNET_IOCTL_GET_SG_SUPPORT: |
| 1377 | extend_ioctl_data.u.data = |
| 1378 | ipa3_rmnet_res.ipa_advertise_sg_support; |
| 1379 | if (copy_to_user((u8 *)ifr->ifr_ifru.ifru_data, |
| 1380 | &extend_ioctl_data, |
| 1381 | sizeof(struct rmnet_ioctl_extended_s))) |
| 1382 | rc = -EFAULT; |
| 1383 | break; |
| 1384 | /* Get endpoint ID */ |
| 1385 | case RMNET_IOCTL_GET_EPID: |
| 1386 | IPAWANDBG("get ioctl: RMNET_IOCTL_GET_EPID\n"); |
| 1387 | extend_ioctl_data.u.data = epid; |
| 1388 | if (copy_to_user((u8 *)ifr->ifr_ifru.ifru_data, |
| 1389 | &extend_ioctl_data, |
| 1390 | sizeof(struct rmnet_ioctl_extended_s))) |
| 1391 | rc = -EFAULT; |
| 1392 | if (copy_from_user(&extend_ioctl_data, |
| 1393 | (u8 *)ifr->ifr_ifru.ifru_data, |
| 1394 | sizeof(struct rmnet_ioctl_extended_s))) { |
| 1395 | IPAWANERR("copy extended ioctl data failed\n"); |
| 1396 | rc = -EFAULT; |
| 1397 | break; |
| 1398 | } |
| 1399 | IPAWANDBG("RMNET_IOCTL_GET_EPID return %d\n", |
| 1400 | extend_ioctl_data.u.data); |
| 1401 | break; |
| 1402 | /* Endpoint pair */ |
| 1403 | case RMNET_IOCTL_GET_EP_PAIR: |
| 1404 | IPAWANDBG("get ioctl: RMNET_IOCTL_GET_EP_PAIR\n"); |
| 1405 | extend_ioctl_data.u.ipa_ep_pair.consumer_pipe_num = |
| 1406 | ipa3_get_ep_mapping(IPA_CLIENT_APPS_LAN_WAN_PROD); |
| 1407 | extend_ioctl_data.u.ipa_ep_pair.producer_pipe_num = |
| 1408 | ipa3_get_ep_mapping(IPA_CLIENT_APPS_WAN_CONS); |
| 1409 | if (copy_to_user((u8 *)ifr->ifr_ifru.ifru_data, |
| 1410 | &extend_ioctl_data, |
| 1411 | sizeof(struct rmnet_ioctl_extended_s))) |
| 1412 | rc = -EFAULT; |
| 1413 | if (copy_from_user(&extend_ioctl_data, |
| 1414 | (u8 *)ifr->ifr_ifru.ifru_data, |
| 1415 | sizeof(struct rmnet_ioctl_extended_s))) { |
| 1416 | IPAWANERR("copy extended ioctl data failed\n"); |
| 1417 | rc = -EFAULT; |
| 1418 | break; |
| 1419 | } |
| 1420 | IPAWANDBG("RMNET_IOCTL_GET_EP_PAIR c: %d p: %d\n", |
| 1421 | extend_ioctl_data.u.ipa_ep_pair.consumer_pipe_num, |
| 1422 | extend_ioctl_data.u.ipa_ep_pair.producer_pipe_num); |
| 1423 | break; |
| 1424 | /* Get driver name */ |
| 1425 | case RMNET_IOCTL_GET_DRIVER_NAME: |
| 1426 | memcpy(&extend_ioctl_data.u.if_name, |
| 1427 | IPA_NETDEV()->name, |
| 1428 | sizeof(IFNAMSIZ)); |
| 1429 | if (copy_to_user((u8 *)ifr->ifr_ifru.ifru_data, |
| 1430 | &extend_ioctl_data, |
| 1431 | sizeof(struct rmnet_ioctl_extended_s))) |
| 1432 | rc = -EFAULT; |
| 1433 | break; |
| 1434 | /* Add MUX ID */ |
| 1435 | case RMNET_IOCTL_ADD_MUX_CHANNEL: |
| 1436 | mux_index = ipa3_find_mux_channel_index( |
| 1437 | extend_ioctl_data.u.rmnet_mux_val.mux_id); |
| 1438 | if (mux_index < MAX_NUM_OF_MUX_CHANNEL) { |
| 1439 | IPAWANDBG("already setup mux(%d)\n", |
| 1440 | extend_ioctl_data.u. |
| 1441 | rmnet_mux_val.mux_id); |
| 1442 | return rc; |
| 1443 | } |
| 1444 | if (rmnet_ipa3_ctx->rmnet_index |
| 1445 | >= MAX_NUM_OF_MUX_CHANNEL) { |
| 1446 | IPAWANERR("Exceed mux_channel limit(%d)\n", |
| 1447 | rmnet_ipa3_ctx->rmnet_index); |
| 1448 | return -EFAULT; |
| 1449 | } |
| 1450 | IPAWANDBG("ADD_MUX_CHANNEL(%d, name: %s)\n", |
| 1451 | extend_ioctl_data.u.rmnet_mux_val.mux_id, |
| 1452 | extend_ioctl_data.u.rmnet_mux_val.vchannel_name); |
| 1453 | /* cache the mux name and id */ |
| 1454 | mux_channel = rmnet_ipa3_ctx->mux_channel; |
| 1455 | rmnet_index = rmnet_ipa3_ctx->rmnet_index; |
| 1456 | |
| 1457 | mux_channel[rmnet_index].mux_id = |
| 1458 | extend_ioctl_data.u.rmnet_mux_val.mux_id; |
| 1459 | memcpy(mux_channel[rmnet_index].vchannel_name, |
| 1460 | extend_ioctl_data.u.rmnet_mux_val.vchannel_name, |
| 1461 | sizeof(mux_channel[rmnet_index] |
| 1462 | .vchannel_name)); |
| 1463 | IPAWANDBG("cashe device[%s:%d] in IPA_wan[%d]\n", |
| 1464 | mux_channel[rmnet_index].vchannel_name, |
| 1465 | mux_channel[rmnet_index].mux_id, |
| 1466 | rmnet_index); |
| 1467 | /* check if UL filter rules coming*/ |
| 1468 | if (rmnet_ipa3_ctx->num_q6_rules != 0) { |
| 1469 | IPAWANERR("dev(%s) register to IPA\n", |
| 1470 | extend_ioctl_data.u.rmnet_mux_val. |
| 1471 | vchannel_name); |
| 1472 | rc = ipa3_wwan_register_to_ipa( |
| 1473 | rmnet_ipa3_ctx->rmnet_index); |
| 1474 | if (rc < 0) { |
| 1475 | IPAWANERR("device %s reg IPA failed\n", |
| 1476 | extend_ioctl_data.u. |
| 1477 | rmnet_mux_val.vchannel_name); |
| 1478 | return -ENODEV; |
| 1479 | } |
| 1480 | mux_channel[rmnet_index].mux_channel_set = true; |
| 1481 | mux_channel[rmnet_index].ul_flt_reg = true; |
| 1482 | } else { |
| 1483 | IPAWANDBG("dev(%s) haven't registered to IPA\n", |
| 1484 | extend_ioctl_data.u. |
| 1485 | rmnet_mux_val.vchannel_name); |
| 1486 | mux_channel[rmnet_index].mux_channel_set = true; |
| 1487 | mux_channel[rmnet_index].ul_flt_reg = false; |
| 1488 | } |
| 1489 | rmnet_ipa3_ctx->rmnet_index++; |
| 1490 | break; |
| 1491 | case RMNET_IOCTL_SET_EGRESS_DATA_FORMAT: |
| 1492 | IPAWANDBG("get RMNET_IOCTL_SET_EGRESS_DATA_FORMAT\n"); |
| 1493 | if ((extend_ioctl_data.u.data) & |
| 1494 | RMNET_IOCTL_EGRESS_FORMAT_CHECKSUM) { |
| 1495 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg. |
| 1496 | ipa_ep_cfg.hdr.hdr_len = 8; |
| 1497 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg. |
| 1498 | ipa_ep_cfg.cfg.cs_offload_en = |
| 1499 | IPA_ENABLE_CS_OFFLOAD_UL; |
| 1500 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg. |
| 1501 | ipa_ep_cfg.cfg.cs_metadata_hdr_offset |
| 1502 | = 1; |
| 1503 | } else { |
| 1504 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg. |
| 1505 | ipa_ep_cfg.hdr.hdr_len = 4; |
| 1506 | } |
| 1507 | if ((extend_ioctl_data.u.data) & |
| 1508 | RMNET_IOCTL_EGRESS_FORMAT_AGGREGATION) |
| 1509 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg. |
| 1510 | ipa_ep_cfg.aggr.aggr_en = |
| 1511 | IPA_ENABLE_AGGR; |
| 1512 | else |
| 1513 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg. |
| 1514 | ipa_ep_cfg.aggr.aggr_en = |
| 1515 | IPA_BYPASS_AGGR; |
| 1516 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg.ipa_ep_cfg.hdr. |
| 1517 | hdr_ofst_metadata_valid = 1; |
| 1518 | /* modem want offset at 0! */ |
| 1519 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg.ipa_ep_cfg.hdr. |
| 1520 | hdr_ofst_metadata = 0; |
| 1521 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg.ipa_ep_cfg.mode. |
| 1522 | dst = IPA_CLIENT_APPS_LAN_WAN_PROD; |
| 1523 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg.ipa_ep_cfg.mode. |
| 1524 | mode = IPA_BASIC; |
| 1525 | |
| 1526 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg.client = |
| 1527 | IPA_CLIENT_APPS_LAN_WAN_PROD; |
| 1528 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg.notify = |
| 1529 | apps_ipa_tx_complete_notify; |
| 1530 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg.desc_fifo_sz = |
| 1531 | IPA_SYS_TX_DATA_DESC_FIFO_SZ; |
| 1532 | rmnet_ipa3_ctx->apps_to_ipa_ep_cfg.priv = dev; |
| 1533 | |
| 1534 | rc = ipa3_setup_sys_pipe( |
| 1535 | &rmnet_ipa3_ctx->apps_to_ipa_ep_cfg, |
| 1536 | &rmnet_ipa3_ctx->apps_to_ipa3_hdl); |
| 1537 | if (rc) |
| 1538 | IPAWANERR("failed to config egress endpoint\n"); |
| 1539 | |
| 1540 | if (rmnet_ipa3_ctx->num_q6_rules != 0) { |
| 1541 | /* already got Q6 UL filter rules*/ |
| 1542 | if (ipa3_qmi_ctx->modem_cfg_emb_pipe_flt |
| 1543 | == false) |
| 1544 | rc = ipa3_wwan_add_ul_flt_rule_to_ipa(); |
| 1545 | else |
| 1546 | rc = 0; |
| 1547 | rmnet_ipa3_ctx->egress_set = true; |
| 1548 | if (rc) |
| 1549 | IPAWANERR("install UL rules failed\n"); |
| 1550 | else |
| 1551 | rmnet_ipa3_ctx->a7_ul_flt_set = true; |
| 1552 | } else { |
| 1553 | /* wait Q6 UL filter rules*/ |
| 1554 | rmnet_ipa3_ctx->egress_set = true; |
| 1555 | IPAWANDBG("no UL-rules, egress_set(%d)\n", |
| 1556 | rmnet_ipa3_ctx->egress_set); |
| 1557 | } |
| 1558 | break; |
| 1559 | case RMNET_IOCTL_SET_INGRESS_DATA_FORMAT:/* Set IDF */ |
| 1560 | IPAWANDBG("get RMNET_IOCTL_SET_INGRESS_DATA_FORMAT\n"); |
| 1561 | if ((extend_ioctl_data.u.data) & |
| 1562 | RMNET_IOCTL_INGRESS_FORMAT_CHECKSUM) |
| 1563 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg. |
| 1564 | ipa_ep_cfg.cfg.cs_offload_en = |
| 1565 | IPA_ENABLE_CS_OFFLOAD_DL; |
| 1566 | |
| 1567 | if ((extend_ioctl_data.u.data) & |
| 1568 | RMNET_IOCTL_INGRESS_FORMAT_AGG_DATA) { |
| 1569 | IPAWANERR("get AGG size %d count %d\n", |
| 1570 | extend_ioctl_data.u. |
| 1571 | ingress_format.agg_size, |
| 1572 | extend_ioctl_data.u. |
| 1573 | ingress_format.agg_count); |
| 1574 | if (!ipa_disable_apps_wan_cons_deaggr( |
| 1575 | extend_ioctl_data.u. |
| 1576 | ingress_format.agg_size, |
| 1577 | extend_ioctl_data. |
| 1578 | u.ingress_format.agg_count)) { |
| 1579 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg. |
| 1580 | ipa_ep_cfg.aggr.aggr_byte_limit = |
| 1581 | extend_ioctl_data.u.ingress_format. |
| 1582 | agg_size; |
| 1583 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg. |
| 1584 | ipa_ep_cfg.aggr.aggr_pkt_limit = |
| 1585 | extend_ioctl_data.u.ingress_format. |
| 1586 | agg_count; |
| 1587 | } |
| 1588 | } |
| 1589 | |
| 1590 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr. |
| 1591 | hdr_len = 4; |
| 1592 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr. |
| 1593 | hdr_ofst_metadata_valid = 1; |
| 1594 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg. |
| 1595 | hdr.hdr_ofst_metadata = 1; |
| 1596 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr. |
| 1597 | hdr_ofst_pkt_size_valid = 1; |
| 1598 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr. |
| 1599 | hdr_ofst_pkt_size = 2; |
| 1600 | |
| 1601 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr_ext. |
| 1602 | hdr_total_len_or_pad_valid = true; |
| 1603 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr_ext. |
| 1604 | hdr_total_len_or_pad = 0; |
| 1605 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr_ext. |
| 1606 | hdr_payload_len_inc_padding = true; |
| 1607 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr_ext. |
| 1608 | hdr_total_len_or_pad_offset = 0; |
| 1609 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg.hdr_ext. |
| 1610 | hdr_little_endian = 0; |
| 1611 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.ipa_ep_cfg. |
| 1612 | metadata_mask.metadata_mask = 0xFF000000; |
| 1613 | |
| 1614 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.client = |
| 1615 | IPA_CLIENT_APPS_WAN_CONS; |
| 1616 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.notify = |
| 1617 | apps_ipa_packet_receive_notify; |
| 1618 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.priv = dev; |
| 1619 | |
| 1620 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.napi_enabled = |
| 1621 | ipa3_rmnet_res.ipa_napi_enable; |
| 1622 | if (rmnet_ipa3_ctx->ipa_to_apps_ep_cfg.napi_enabled) |
| 1623 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg. |
| 1624 | desc_fifo_sz = IPA_WAN_CONS_DESC_FIFO_SZ; |
| 1625 | else |
| 1626 | rmnet_ipa3_ctx->ipa_to_apps_ep_cfg. |
| 1627 | desc_fifo_sz = IPA_SYS_DESC_FIFO_SZ; |
| 1628 | |
| 1629 | mutex_lock( |
| 1630 | &rmnet_ipa3_ctx->ipa_to_apps_pipe_handle_guard); |
| 1631 | if (atomic_read(&rmnet_ipa3_ctx->is_ssr)) { |
| 1632 | IPAWANDBG("In SSR sequence/recovery\n"); |
| 1633 | mutex_unlock(&rmnet_ipa3_ctx-> |
| 1634 | ipa_to_apps_pipe_handle_guard); |
| 1635 | rc = -EFAULT; |
| 1636 | break; |
| 1637 | } |
| 1638 | rc = ipa3_setup_sys_pipe( |
| 1639 | &rmnet_ipa3_ctx->ipa_to_apps_ep_cfg, |
| 1640 | &rmnet_ipa3_ctx->ipa3_to_apps_hdl); |
| 1641 | mutex_unlock(&rmnet_ipa3_ctx-> |
| 1642 | ipa_to_apps_pipe_handle_guard); |
| 1643 | if (rc) |
| 1644 | IPAWANERR("failed to configure ingress\n"); |
| 1645 | break; |
| 1646 | case RMNET_IOCTL_SET_XLAT_DEV_INFO: |
| 1647 | wan_msg = kzalloc(sizeof(struct ipa_wan_msg), |
| 1648 | GFP_KERNEL); |
| 1649 | if (!wan_msg) { |
| 1650 | IPAWANERR("Failed to allocate memory.\n"); |
| 1651 | return -ENOMEM; |
| 1652 | } |
| 1653 | len = sizeof(wan_msg->upstream_ifname) > |
| 1654 | sizeof(extend_ioctl_data.u.if_name) ? |
| 1655 | sizeof(extend_ioctl_data.u.if_name) : |
| 1656 | sizeof(wan_msg->upstream_ifname); |
| 1657 | strlcpy(wan_msg->upstream_ifname, |
| 1658 | extend_ioctl_data.u.if_name, len); |
| 1659 | memset(&msg_meta, 0, sizeof(struct ipa_msg_meta)); |
| 1660 | msg_meta.msg_type = WAN_XLAT_CONNECT; |
| 1661 | msg_meta.msg_len = sizeof(struct ipa_wan_msg); |
| 1662 | rc = ipa3_send_msg(&msg_meta, wan_msg, |
| 1663 | ipa3_wwan_msg_free_cb); |
| 1664 | if (rc) { |
| 1665 | IPAWANERR("Failed to send XLAT_CONNECT msg\n"); |
| 1666 | kfree(wan_msg); |
| 1667 | } |
| 1668 | break; |
| 1669 | /* Get agg count */ |
| 1670 | case RMNET_IOCTL_GET_AGGREGATION_COUNT: |
| 1671 | break; |
| 1672 | /* Set agg count */ |
| 1673 | case RMNET_IOCTL_SET_AGGREGATION_COUNT: |
| 1674 | break; |
| 1675 | /* Get agg size */ |
| 1676 | case RMNET_IOCTL_GET_AGGREGATION_SIZE: |
| 1677 | break; |
| 1678 | /* Set agg size */ |
| 1679 | case RMNET_IOCTL_SET_AGGREGATION_SIZE: |
| 1680 | break; |
| 1681 | /* Do flow control */ |
| 1682 | case RMNET_IOCTL_FLOW_CONTROL: |
| 1683 | break; |
| 1684 | /* For legacy use */ |
| 1685 | case RMNET_IOCTL_GET_DFLT_CONTROL_CHANNEL: |
| 1686 | break; |
| 1687 | /* Get HW/SW map */ |
| 1688 | case RMNET_IOCTL_GET_HWSW_MAP: |
| 1689 | break; |
| 1690 | /* Set RX Headroom */ |
| 1691 | case RMNET_IOCTL_SET_RX_HEADROOM: |
| 1692 | break; |
| 1693 | default: |
| 1694 | IPAWANERR("[%s] unsupported extended cmd[%d]", |
| 1695 | dev->name, |
| 1696 | extend_ioctl_data.extended_ioctl); |
| 1697 | rc = -EINVAL; |
| 1698 | } |
| 1699 | break; |
| 1700 | default: |
| 1701 | IPAWANERR("[%s] unsupported cmd[%d]", |
| 1702 | dev->name, cmd); |
| 1703 | rc = -EINVAL; |
| 1704 | } |
| 1705 | return rc; |
| 1706 | } |
| 1707 | |
| 1708 | static const struct net_device_ops ipa3_wwan_ops_ip = { |
| 1709 | .ndo_open = ipa3_wwan_open, |
| 1710 | .ndo_stop = ipa3_wwan_stop, |
| 1711 | .ndo_start_xmit = ipa3_wwan_xmit, |
| 1712 | .ndo_tx_timeout = ipa3_wwan_tx_timeout, |
| 1713 | .ndo_do_ioctl = ipa3_wwan_ioctl, |
| 1714 | .ndo_change_mtu = ipa3_wwan_change_mtu, |
| 1715 | .ndo_set_mac_address = 0, |
| 1716 | .ndo_validate_addr = 0, |
| 1717 | }; |
| 1718 | |
| 1719 | /** |
| 1720 | * wwan_setup() - Setups the wwan network driver. |
| 1721 | * |
| 1722 | * @dev: network device |
| 1723 | * |
| 1724 | * Return codes: |
| 1725 | * None |
| 1726 | */ |
| 1727 | |
| 1728 | static void ipa3_wwan_setup(struct net_device *dev) |
| 1729 | { |
| 1730 | dev->netdev_ops = &ipa3_wwan_ops_ip; |
| 1731 | ether_setup(dev); |
| 1732 | /* set this after calling ether_setup */ |
| 1733 | dev->header_ops = 0; /* No header */ |
| 1734 | dev->type = ARPHRD_RAWIP; |
| 1735 | dev->hard_header_len = 0; |
| 1736 | dev->mtu = WWAN_DATA_LEN; |
| 1737 | dev->addr_len = 0; |
| 1738 | dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST); |
| 1739 | dev->needed_headroom = HEADROOM_FOR_QMAP; |
| 1740 | dev->needed_tailroom = TAILROOM; |
| 1741 | dev->watchdog_timeo = 1000; |
| 1742 | } |
| 1743 | |
| 1744 | /* IPA_RM related functions start*/ |
| 1745 | static void ipa3_q6_prod_rm_request_resource(struct work_struct *work); |
| 1746 | static DECLARE_DELAYED_WORK(ipa3_q6_con_rm_request, |
| 1747 | ipa3_q6_prod_rm_request_resource); |
| 1748 | static void ipa3_q6_prod_rm_release_resource(struct work_struct *work); |
| 1749 | static DECLARE_DELAYED_WORK(ipa3_q6_con_rm_release, |
| 1750 | ipa3_q6_prod_rm_release_resource); |
| 1751 | |
| 1752 | static void ipa3_q6_prod_rm_request_resource(struct work_struct *work) |
| 1753 | { |
| 1754 | int ret = 0; |
| 1755 | |
| 1756 | ret = ipa_rm_request_resource(IPA_RM_RESOURCE_Q6_PROD); |
| 1757 | if (ret < 0 && ret != -EINPROGRESS) { |
| 1758 | IPAWANERR("%s: ipa_rm_request_resource failed %d\n", __func__, |
| 1759 | ret); |
| 1760 | return; |
| 1761 | } |
| 1762 | } |
| 1763 | |
| 1764 | static int ipa3_q6_rm_request_resource(void) |
| 1765 | { |
| 1766 | queue_delayed_work(rmnet_ipa3_ctx->rm_q6_wq, |
| 1767 | &ipa3_q6_con_rm_request, 0); |
| 1768 | return 0; |
| 1769 | } |
| 1770 | |
| 1771 | static void ipa3_q6_prod_rm_release_resource(struct work_struct *work) |
| 1772 | { |
| 1773 | int ret = 0; |
| 1774 | |
| 1775 | ret = ipa_rm_release_resource(IPA_RM_RESOURCE_Q6_PROD); |
| 1776 | if (ret < 0 && ret != -EINPROGRESS) { |
| 1777 | IPAWANERR("%s: ipa_rm_release_resource failed %d\n", __func__, |
| 1778 | ret); |
| 1779 | return; |
| 1780 | } |
| 1781 | } |
| 1782 | |
| 1783 | |
| 1784 | static int ipa3_q6_rm_release_resource(void) |
| 1785 | { |
| 1786 | queue_delayed_work(rmnet_ipa3_ctx->rm_q6_wq, |
| 1787 | &ipa3_q6_con_rm_release, 0); |
| 1788 | return 0; |
| 1789 | } |
| 1790 | |
| 1791 | |
| 1792 | static void ipa3_q6_rm_notify_cb(void *user_data, |
| 1793 | enum ipa_rm_event event, |
| 1794 | unsigned long data) |
| 1795 | { |
| 1796 | switch (event) { |
| 1797 | case IPA_RM_RESOURCE_GRANTED: |
| 1798 | IPAWANDBG_LOW("%s: Q6_PROD GRANTED CB\n", __func__); |
| 1799 | break; |
| 1800 | case IPA_RM_RESOURCE_RELEASED: |
| 1801 | IPAWANDBG_LOW("%s: Q6_PROD RELEASED CB\n", __func__); |
| 1802 | break; |
| 1803 | default: |
| 1804 | return; |
| 1805 | } |
| 1806 | } |
| 1807 | static int ipa3_q6_initialize_rm(void) |
| 1808 | { |
| 1809 | struct ipa_rm_create_params create_params; |
| 1810 | struct ipa_rm_perf_profile profile; |
| 1811 | int result; |
| 1812 | |
| 1813 | /* Initialize IPA_RM workqueue */ |
| 1814 | rmnet_ipa3_ctx->rm_q6_wq = create_singlethread_workqueue("clnt_req"); |
| 1815 | if (!rmnet_ipa3_ctx->rm_q6_wq) |
| 1816 | return -ENOMEM; |
| 1817 | |
| 1818 | memset(&create_params, 0, sizeof(create_params)); |
| 1819 | create_params.name = IPA_RM_RESOURCE_Q6_PROD; |
| 1820 | create_params.reg_params.notify_cb = &ipa3_q6_rm_notify_cb; |
| 1821 | result = ipa_rm_create_resource(&create_params); |
| 1822 | if (result) |
| 1823 | goto create_rsrc_err1; |
| 1824 | memset(&create_params, 0, sizeof(create_params)); |
| 1825 | create_params.name = IPA_RM_RESOURCE_Q6_CONS; |
| 1826 | create_params.release_resource = &ipa3_q6_rm_release_resource; |
| 1827 | create_params.request_resource = &ipa3_q6_rm_request_resource; |
| 1828 | result = ipa_rm_create_resource(&create_params); |
| 1829 | if (result) |
| 1830 | goto create_rsrc_err2; |
| 1831 | /* add dependency*/ |
| 1832 | result = ipa_rm_add_dependency(IPA_RM_RESOURCE_Q6_PROD, |
| 1833 | IPA_RM_RESOURCE_APPS_CONS); |
| 1834 | if (result) |
| 1835 | goto add_dpnd_err; |
| 1836 | /* setup Performance profile */ |
| 1837 | memset(&profile, 0, sizeof(profile)); |
| 1838 | profile.max_supported_bandwidth_mbps = 100; |
| 1839 | result = ipa_rm_set_perf_profile(IPA_RM_RESOURCE_Q6_PROD, |
| 1840 | &profile); |
| 1841 | if (result) |
| 1842 | goto set_perf_err; |
| 1843 | result = ipa_rm_set_perf_profile(IPA_RM_RESOURCE_Q6_CONS, |
| 1844 | &profile); |
| 1845 | if (result) |
| 1846 | goto set_perf_err; |
| 1847 | return result; |
| 1848 | |
| 1849 | set_perf_err: |
| 1850 | ipa_rm_delete_dependency(IPA_RM_RESOURCE_Q6_PROD, |
| 1851 | IPA_RM_RESOURCE_APPS_CONS); |
| 1852 | add_dpnd_err: |
| 1853 | result = ipa_rm_delete_resource(IPA_RM_RESOURCE_Q6_CONS); |
| 1854 | if (result < 0) |
| 1855 | IPAWANERR("Error deleting resource %d, ret=%d\n", |
| 1856 | IPA_RM_RESOURCE_Q6_CONS, result); |
| 1857 | create_rsrc_err2: |
| 1858 | result = ipa_rm_delete_resource(IPA_RM_RESOURCE_Q6_PROD); |
| 1859 | if (result < 0) |
| 1860 | IPAWANERR("Error deleting resource %d, ret=%d\n", |
| 1861 | IPA_RM_RESOURCE_Q6_PROD, result); |
| 1862 | create_rsrc_err1: |
| 1863 | destroy_workqueue(rmnet_ipa3_ctx->rm_q6_wq); |
| 1864 | return result; |
| 1865 | } |
| 1866 | |
| 1867 | void ipa3_q6_deinitialize_rm(void) |
| 1868 | { |
| 1869 | int ret; |
| 1870 | |
| 1871 | ret = ipa_rm_delete_dependency(IPA_RM_RESOURCE_Q6_PROD, |
| 1872 | IPA_RM_RESOURCE_APPS_CONS); |
| 1873 | if (ret < 0) |
| 1874 | IPAWANERR("Error deleting dependency %d->%d, ret=%d\n", |
| 1875 | IPA_RM_RESOURCE_Q6_PROD, IPA_RM_RESOURCE_APPS_CONS, |
| 1876 | ret); |
| 1877 | ret = ipa_rm_delete_resource(IPA_RM_RESOURCE_Q6_CONS); |
| 1878 | if (ret < 0) |
| 1879 | IPAWANERR("Error deleting resource %d, ret=%d\n", |
| 1880 | IPA_RM_RESOURCE_Q6_CONS, ret); |
| 1881 | ret = ipa_rm_delete_resource(IPA_RM_RESOURCE_Q6_PROD); |
| 1882 | if (ret < 0) |
| 1883 | IPAWANERR("Error deleting resource %d, ret=%d\n", |
| 1884 | IPA_RM_RESOURCE_Q6_PROD, ret); |
| 1885 | destroy_workqueue(rmnet_ipa3_ctx->rm_q6_wq); |
| 1886 | } |
| 1887 | |
| 1888 | static void ipa3_wake_tx_queue(struct work_struct *work) |
| 1889 | { |
| 1890 | if (IPA_NETDEV()) { |
| 1891 | __netif_tx_lock_bh(netdev_get_tx_queue(IPA_NETDEV(), 0)); |
| 1892 | netif_wake_queue(IPA_NETDEV()); |
| 1893 | __netif_tx_unlock_bh(netdev_get_tx_queue(IPA_NETDEV(), 0)); |
| 1894 | } |
| 1895 | } |
| 1896 | |
| 1897 | /** |
| 1898 | * ipa3_rm_resource_granted() - Called upon |
| 1899 | * IPA_RM_RESOURCE_GRANTED event. Wakes up queue is was stopped. |
| 1900 | * |
| 1901 | * @work: work object supplied ny workqueue |
| 1902 | * |
| 1903 | * Return codes: |
| 1904 | * None |
| 1905 | */ |
| 1906 | static void ipa3_rm_resource_granted(void *dev) |
| 1907 | { |
| 1908 | IPAWANDBG_LOW("Resource Granted - starting queue\n"); |
| 1909 | schedule_work(&ipa3_tx_wakequeue_work); |
| 1910 | } |
| 1911 | |
| 1912 | /** |
| 1913 | * ipa3_rm_notify() - Callback function for RM events. Handles |
| 1914 | * IPA_RM_RESOURCE_GRANTED and IPA_RM_RESOURCE_RELEASED events. |
| 1915 | * IPA_RM_RESOURCE_GRANTED is handled in the context of shared |
| 1916 | * workqueue. |
| 1917 | * |
| 1918 | * @dev: network device |
| 1919 | * @event: IPA RM event |
| 1920 | * @data: Additional data provided by IPA RM |
| 1921 | * |
| 1922 | * Return codes: |
| 1923 | * None |
| 1924 | */ |
| 1925 | static void ipa3_rm_notify(void *dev, enum ipa_rm_event event, |
| 1926 | unsigned long data) |
| 1927 | { |
| 1928 | struct ipa3_wwan_private *wwan_ptr = netdev_priv(dev); |
| 1929 | |
| 1930 | pr_debug("%s: event %d\n", __func__, event); |
| 1931 | switch (event) { |
| 1932 | case IPA_RM_RESOURCE_GRANTED: |
| 1933 | if (wwan_ptr->device_status == WWAN_DEVICE_INACTIVE) { |
| 1934 | complete_all(&wwan_ptr->resource_granted_completion); |
| 1935 | break; |
| 1936 | } |
| 1937 | ipa3_rm_resource_granted(dev); |
| 1938 | break; |
| 1939 | case IPA_RM_RESOURCE_RELEASED: |
| 1940 | break; |
| 1941 | default: |
| 1942 | pr_err("%s: unknown event %d\n", __func__, event); |
| 1943 | break; |
| 1944 | } |
| 1945 | } |
| 1946 | |
| 1947 | /* IPA_RM related functions end*/ |
| 1948 | |
| 1949 | static int ipa3_ssr_notifier_cb(struct notifier_block *this, |
| 1950 | unsigned long code, |
| 1951 | void *data); |
| 1952 | |
| 1953 | static struct notifier_block ipa3_ssr_notifier = { |
| 1954 | .notifier_call = ipa3_ssr_notifier_cb, |
| 1955 | }; |
| 1956 | |
| 1957 | static int get_ipa_rmnet_dts_configuration(struct platform_device *pdev, |
| 1958 | struct ipa3_rmnet_plat_drv_res *ipa_rmnet_drv_res) |
| 1959 | { |
| 1960 | ipa_rmnet_drv_res->ipa_rmnet_ssr = |
| 1961 | of_property_read_bool(pdev->dev.of_node, |
| 1962 | "qcom,rmnet-ipa-ssr"); |
| 1963 | pr_info("IPA SSR support = %s\n", |
| 1964 | ipa_rmnet_drv_res->ipa_rmnet_ssr ? "True" : "False"); |
| 1965 | ipa_rmnet_drv_res->ipa_loaduC = |
| 1966 | of_property_read_bool(pdev->dev.of_node, |
| 1967 | "qcom,ipa-loaduC"); |
| 1968 | pr_info("IPA ipa-loaduC = %s\n", |
| 1969 | ipa_rmnet_drv_res->ipa_loaduC ? "True" : "False"); |
| 1970 | |
| 1971 | ipa_rmnet_drv_res->ipa_advertise_sg_support = |
| 1972 | of_property_read_bool(pdev->dev.of_node, |
| 1973 | "qcom,ipa-advertise-sg-support"); |
| 1974 | pr_info("IPA SG support = %s\n", |
| 1975 | ipa_rmnet_drv_res->ipa_advertise_sg_support ? "True" : "False"); |
| 1976 | return 0; |
| 1977 | } |
| 1978 | |
| 1979 | struct ipa3_rmnet_context ipa3_rmnet_ctx; |
| 1980 | static int ipa3_wwan_probe(struct platform_device *pdev); |
| 1981 | struct platform_device *m_pdev; |
| 1982 | |
| 1983 | static void ipa3_delayed_probe(struct work_struct *work) |
| 1984 | { |
| 1985 | (void)ipa3_wwan_probe(m_pdev); |
| 1986 | } |
| 1987 | |
| 1988 | static DECLARE_WORK(ipa3_scheduled_probe, ipa3_delayed_probe); |
| 1989 | |
| 1990 | static void ipa3_ready_cb(void *user_data) |
| 1991 | { |
| 1992 | struct platform_device *pdev = (struct platform_device *)(user_data); |
| 1993 | |
| 1994 | m_pdev = pdev; |
| 1995 | |
| 1996 | IPAWANDBG("IPA ready callback has been triggered!\n"); |
| 1997 | |
| 1998 | schedule_work(&ipa3_scheduled_probe); |
| 1999 | } |
| 2000 | |
| 2001 | /** |
| 2002 | * ipa3_wwan_probe() - Initialized the module and registers as a |
| 2003 | * network interface to the network stack |
| 2004 | * |
| 2005 | * Note: In case IPA driver hasn't initialized already, the probe function |
| 2006 | * will return immediately after registering a callback to be invoked when |
| 2007 | * IPA driver initialization is complete. |
| 2008 | * |
| 2009 | * Return codes: |
| 2010 | * 0: success |
| 2011 | * -ENOMEM: No memory available |
| 2012 | * -EFAULT: Internal error |
| 2013 | */ |
| 2014 | static int ipa3_wwan_probe(struct platform_device *pdev) |
| 2015 | { |
| 2016 | int ret, i; |
| 2017 | struct net_device *dev; |
| 2018 | struct ipa_rm_create_params ipa_rm_params; /* IPA_RM */ |
| 2019 | struct ipa_rm_perf_profile profile; /* IPA_RM */ |
| 2020 | |
| 2021 | pr_info("rmnet_ipa3 started initialization\n"); |
| 2022 | |
| 2023 | if (!ipa3_is_ready()) { |
| 2024 | IPAWANDBG("IPA driver not ready, registering callback\n"); |
| 2025 | ret = ipa_register_ipa_ready_cb(ipa3_ready_cb, (void *)pdev); |
| 2026 | |
| 2027 | /* |
| 2028 | * If we received -EEXIST, IPA has initialized. So we need |
| 2029 | * to continue the probing process. |
| 2030 | */ |
| 2031 | if (ret != -EEXIST) { |
| 2032 | if (ret) |
| 2033 | IPAWANERR("IPA CB reg failed - %d\n", ret); |
| 2034 | return ret; |
| 2035 | } |
| 2036 | } |
| 2037 | |
| 2038 | ret = get_ipa_rmnet_dts_configuration(pdev, &ipa3_rmnet_res); |
| 2039 | ipa3_rmnet_ctx.ipa_rmnet_ssr = ipa3_rmnet_res.ipa_rmnet_ssr; |
| 2040 | |
| 2041 | ret = ipa3_init_q6_smem(); |
| 2042 | if (ret) { |
| 2043 | IPAWANERR("ipa3_init_q6_smem failed!\n"); |
| 2044 | return ret; |
| 2045 | } |
| 2046 | |
| 2047 | /* initialize tx/rx endpoint setup */ |
| 2048 | memset(&rmnet_ipa3_ctx->apps_to_ipa_ep_cfg, 0, |
| 2049 | sizeof(struct ipa_sys_connect_params)); |
| 2050 | memset(&rmnet_ipa3_ctx->ipa_to_apps_ep_cfg, 0, |
| 2051 | sizeof(struct ipa_sys_connect_params)); |
| 2052 | |
| 2053 | /* initialize ex property setup */ |
| 2054 | rmnet_ipa3_ctx->num_q6_rules = 0; |
| 2055 | rmnet_ipa3_ctx->old_num_q6_rules = 0; |
| 2056 | rmnet_ipa3_ctx->rmnet_index = 0; |
| 2057 | rmnet_ipa3_ctx->egress_set = false; |
| 2058 | rmnet_ipa3_ctx->a7_ul_flt_set = false; |
| 2059 | for (i = 0; i < MAX_NUM_OF_MUX_CHANNEL; i++) |
| 2060 | memset(&rmnet_ipa3_ctx->mux_channel[i], 0, |
| 2061 | sizeof(struct ipa3_rmnet_mux_val)); |
| 2062 | |
| 2063 | /* start A7 QMI service/client */ |
| 2064 | if (ipa3_rmnet_res.ipa_loaduC) |
| 2065 | /* Android platform loads uC */ |
| 2066 | ipa3_qmi_service_init(QMI_IPA_PLATFORM_TYPE_MSM_ANDROID_V01); |
| 2067 | else |
| 2068 | /* LE platform not loads uC */ |
| 2069 | ipa3_qmi_service_init(QMI_IPA_PLATFORM_TYPE_LE_V01); |
| 2070 | |
| 2071 | /* construct default WAN RT tbl for IPACM */ |
| 2072 | ret = ipa3_setup_a7_qmap_hdr(); |
| 2073 | if (ret) |
| 2074 | goto setup_a7_qmap_hdr_err; |
| 2075 | ret = ipa3_setup_dflt_wan_rt_tables(); |
| 2076 | if (ret) |
| 2077 | goto setup_dflt_wan_rt_tables_err; |
| 2078 | |
| 2079 | if (!atomic_read(&rmnet_ipa3_ctx->is_ssr)) { |
| 2080 | /* Start transport-driver fd ioctl for ipacm for first init */ |
| 2081 | ret = ipa3_wan_ioctl_init(); |
| 2082 | if (ret) |
| 2083 | goto wan_ioctl_init_err; |
| 2084 | } else { |
| 2085 | /* Enable sending QMI messages after SSR */ |
| 2086 | ipa3_wan_ioctl_enable_qmi_messages(); |
| 2087 | } |
| 2088 | |
| 2089 | /* initialize wan-driver netdev */ |
| 2090 | dev = alloc_netdev(sizeof(struct ipa3_wwan_private), |
| 2091 | IPA_WWAN_DEV_NAME, |
| 2092 | NET_NAME_UNKNOWN, |
| 2093 | ipa3_wwan_setup); |
| 2094 | if (!dev) { |
| 2095 | IPAWANERR("no memory for netdev\n"); |
| 2096 | ret = -ENOMEM; |
| 2097 | goto alloc_netdev_err; |
| 2098 | } |
| 2099 | rmnet_ipa3_ctx->wwan_priv = netdev_priv(dev); |
| 2100 | memset(rmnet_ipa3_ctx->wwan_priv, 0, |
| 2101 | sizeof(*(rmnet_ipa3_ctx->wwan_priv))); |
| 2102 | IPAWANDBG("wwan_ptr (private) = %p", rmnet_ipa3_ctx->wwan_priv); |
| 2103 | rmnet_ipa3_ctx->wwan_priv->net = dev; |
| 2104 | rmnet_ipa3_ctx->wwan_priv->outstanding_high = DEFAULT_OUTSTANDING_HIGH; |
| 2105 | rmnet_ipa3_ctx->wwan_priv->outstanding_low = DEFAULT_OUTSTANDING_LOW; |
| 2106 | atomic_set(&rmnet_ipa3_ctx->wwan_priv->outstanding_pkts, 0); |
| 2107 | spin_lock_init(&rmnet_ipa3_ctx->wwan_priv->lock); |
| 2108 | init_completion( |
| 2109 | &rmnet_ipa3_ctx->wwan_priv->resource_granted_completion); |
| 2110 | |
| 2111 | if (!atomic_read(&rmnet_ipa3_ctx->is_ssr)) { |
| 2112 | /* IPA_RM configuration starts */ |
| 2113 | ret = ipa3_q6_initialize_rm(); |
| 2114 | if (ret) { |
| 2115 | IPAWANERR("%s: ipa3_q6_initialize_rm failed, ret: %d\n", |
| 2116 | __func__, ret); |
| 2117 | goto q6_init_err; |
| 2118 | } |
| 2119 | } |
| 2120 | |
| 2121 | memset(&ipa_rm_params, 0, sizeof(struct ipa_rm_create_params)); |
| 2122 | ipa_rm_params.name = IPA_RM_RESOURCE_WWAN_0_PROD; |
| 2123 | ipa_rm_params.reg_params.user_data = dev; |
| 2124 | ipa_rm_params.reg_params.notify_cb = ipa3_rm_notify; |
| 2125 | ret = ipa_rm_create_resource(&ipa_rm_params); |
| 2126 | if (ret) { |
| 2127 | pr_err("%s: unable to create resourse %d in IPA RM\n", |
| 2128 | __func__, IPA_RM_RESOURCE_WWAN_0_PROD); |
| 2129 | goto create_rsrc_err; |
| 2130 | } |
| 2131 | ret = ipa_rm_inactivity_timer_init(IPA_RM_RESOURCE_WWAN_0_PROD, |
| 2132 | IPA_RM_INACTIVITY_TIMER); |
| 2133 | if (ret) { |
| 2134 | pr_err("%s: ipa rm timer init failed %d on resourse %d\n", |
| 2135 | __func__, ret, IPA_RM_RESOURCE_WWAN_0_PROD); |
| 2136 | goto timer_init_err; |
| 2137 | } |
| 2138 | /* add dependency */ |
| 2139 | ret = ipa_rm_add_dependency(IPA_RM_RESOURCE_WWAN_0_PROD, |
| 2140 | IPA_RM_RESOURCE_Q6_CONS); |
| 2141 | if (ret) |
| 2142 | goto add_dpnd_err; |
| 2143 | /* setup Performance profile */ |
| 2144 | memset(&profile, 0, sizeof(profile)); |
| 2145 | profile.max_supported_bandwidth_mbps = IPA_APPS_MAX_BW_IN_MBPS; |
| 2146 | ret = ipa_rm_set_perf_profile(IPA_RM_RESOURCE_WWAN_0_PROD, |
| 2147 | &profile); |
| 2148 | if (ret) |
| 2149 | goto set_perf_err; |
| 2150 | /* IPA_RM configuration ends */ |
| 2151 | |
| 2152 | /* Enable SG support in netdevice. */ |
| 2153 | if (ipa3_rmnet_res.ipa_advertise_sg_support) |
| 2154 | dev->hw_features |= NETIF_F_SG; |
| 2155 | |
| 2156 | if (ipa3_rmnet_res.ipa_napi_enable) |
| 2157 | netif_napi_add(dev, &(rmnet_ipa3_ctx->wwan_priv->napi), |
| 2158 | ipa3_rmnet_poll, NAPI_WEIGHT); |
| 2159 | ret = register_netdev(dev); |
| 2160 | if (ret) { |
| 2161 | IPAWANERR("unable to register ipa_netdev %d rc=%d\n", |
| 2162 | 0, ret); |
| 2163 | goto set_perf_err; |
| 2164 | } |
| 2165 | |
| 2166 | IPAWANDBG("IPA-WWAN devices (%s) initialization ok :>>>>\n", dev->name); |
| 2167 | if (ret) { |
| 2168 | IPAWANERR("default configuration failed rc=%d\n", |
| 2169 | ret); |
| 2170 | goto config_err; |
| 2171 | } |
| 2172 | atomic_set(&rmnet_ipa3_ctx->is_initialized, 1); |
| 2173 | if (!atomic_read(&rmnet_ipa3_ctx->is_ssr)) { |
| 2174 | /* offline charging mode */ |
| 2175 | ipa3_proxy_clk_unvote(); |
| 2176 | } |
| 2177 | atomic_set(&rmnet_ipa3_ctx->is_ssr, 0); |
| 2178 | |
| 2179 | pr_info("rmnet_ipa completed initialization\n"); |
| 2180 | return 0; |
| 2181 | config_err: |
| 2182 | if (ipa3_rmnet_res.ipa_napi_enable) |
| 2183 | netif_napi_del(&(rmnet_ipa3_ctx->wwan_priv->napi)); |
| 2184 | unregister_netdev(dev); |
| 2185 | set_perf_err: |
| 2186 | ret = ipa_rm_delete_dependency(IPA_RM_RESOURCE_WWAN_0_PROD, |
| 2187 | IPA_RM_RESOURCE_Q6_CONS); |
| 2188 | if (ret) |
| 2189 | IPAWANERR("Error deleting dependency %d->%d, ret=%d\n", |
| 2190 | IPA_RM_RESOURCE_WWAN_0_PROD, IPA_RM_RESOURCE_Q6_CONS, |
| 2191 | ret); |
| 2192 | add_dpnd_err: |
| 2193 | ret = ipa_rm_inactivity_timer_destroy( |
| 2194 | IPA_RM_RESOURCE_WWAN_0_PROD); /* IPA_RM */ |
| 2195 | if (ret) |
| 2196 | IPAWANERR("Error ipa_rm_inactivity_timer_destroy %d, ret=%d\n", |
| 2197 | IPA_RM_RESOURCE_WWAN_0_PROD, ret); |
| 2198 | timer_init_err: |
| 2199 | ret = ipa_rm_delete_resource(IPA_RM_RESOURCE_WWAN_0_PROD); |
| 2200 | if (ret) |
| 2201 | IPAWANERR("Error deleting resource %d, ret=%d\n", |
| 2202 | IPA_RM_RESOURCE_WWAN_0_PROD, ret); |
| 2203 | create_rsrc_err: |
| 2204 | ipa3_q6_deinitialize_rm(); |
| 2205 | q6_init_err: |
| 2206 | free_netdev(dev); |
| 2207 | rmnet_ipa3_ctx->wwan_priv = NULL; |
| 2208 | alloc_netdev_err: |
| 2209 | ipa3_wan_ioctl_deinit(); |
| 2210 | wan_ioctl_init_err: |
| 2211 | ipa3_del_dflt_wan_rt_tables(); |
| 2212 | setup_dflt_wan_rt_tables_err: |
| 2213 | ipa3_del_a7_qmap_hdr(); |
| 2214 | setup_a7_qmap_hdr_err: |
| 2215 | ipa3_qmi_service_exit(); |
| 2216 | atomic_set(&rmnet_ipa3_ctx->is_ssr, 0); |
| 2217 | return ret; |
| 2218 | } |
| 2219 | |
| 2220 | static int ipa3_wwan_remove(struct platform_device *pdev) |
| 2221 | { |
| 2222 | int ret; |
| 2223 | |
| 2224 | pr_info("rmnet_ipa started deinitialization\n"); |
| 2225 | mutex_lock(&rmnet_ipa3_ctx->ipa_to_apps_pipe_handle_guard); |
| 2226 | ret = ipa3_teardown_sys_pipe(rmnet_ipa3_ctx->ipa3_to_apps_hdl); |
| 2227 | if (ret < 0) |
| 2228 | IPAWANERR("Failed to teardown IPA->APPS pipe\n"); |
| 2229 | else |
| 2230 | rmnet_ipa3_ctx->ipa3_to_apps_hdl = -1; |
| 2231 | if (ipa3_rmnet_res.ipa_napi_enable) |
| 2232 | netif_napi_del(&(rmnet_ipa3_ctx->wwan_priv->napi)); |
| 2233 | mutex_unlock(&rmnet_ipa3_ctx->ipa_to_apps_pipe_handle_guard); |
| 2234 | unregister_netdev(IPA_NETDEV()); |
| 2235 | ret = ipa_rm_delete_dependency(IPA_RM_RESOURCE_WWAN_0_PROD, |
| 2236 | IPA_RM_RESOURCE_Q6_CONS); |
| 2237 | if (ret < 0) |
| 2238 | IPAWANERR("Error deleting dependency %d->%d, ret=%d\n", |
| 2239 | IPA_RM_RESOURCE_WWAN_0_PROD, IPA_RM_RESOURCE_Q6_CONS, |
| 2240 | ret); |
| 2241 | ret = ipa_rm_inactivity_timer_destroy(IPA_RM_RESOURCE_WWAN_0_PROD); |
| 2242 | if (ret < 0) |
| 2243 | IPAWANERR( |
| 2244 | "Error ipa_rm_inactivity_timer_destroy resource %d, ret=%d\n", |
| 2245 | IPA_RM_RESOURCE_WWAN_0_PROD, ret); |
| 2246 | ret = ipa_rm_delete_resource(IPA_RM_RESOURCE_WWAN_0_PROD); |
| 2247 | if (ret < 0) |
| 2248 | IPAWANERR("Error deleting resource %d, ret=%d\n", |
| 2249 | IPA_RM_RESOURCE_WWAN_0_PROD, ret); |
| 2250 | cancel_work_sync(&ipa3_tx_wakequeue_work); |
| 2251 | cancel_delayed_work(&ipa_tether_stats_poll_wakequeue_work); |
| 2252 | if (IPA_NETDEV()) |
| 2253 | free_netdev(IPA_NETDEV()); |
| 2254 | rmnet_ipa3_ctx->wwan_priv = NULL; |
| 2255 | /* No need to remove wwan_ioctl during SSR */ |
| 2256 | if (!atomic_read(&rmnet_ipa3_ctx->is_ssr)) |
| 2257 | ipa3_wan_ioctl_deinit(); |
| 2258 | ipa3_del_dflt_wan_rt_tables(); |
| 2259 | ipa3_del_a7_qmap_hdr(); |
| 2260 | ipa3_del_mux_qmap_hdrs(); |
| 2261 | if (ipa3_qmi_ctx->modem_cfg_emb_pipe_flt == false) |
| 2262 | ipa3_wwan_del_ul_flt_rule_to_ipa(); |
| 2263 | ipa3_cleanup_deregister_intf(); |
| 2264 | atomic_set(&rmnet_ipa3_ctx->is_initialized, 0); |
| 2265 | pr_info("rmnet_ipa completed deinitialization\n"); |
| 2266 | return 0; |
| 2267 | } |
| 2268 | |
| 2269 | /** |
| 2270 | * rmnet_ipa_ap_suspend() - suspend callback for runtime_pm |
| 2271 | * @dev: pointer to device |
| 2272 | * |
| 2273 | * This callback will be invoked by the runtime_pm framework when an AP suspend |
| 2274 | * operation is invoked, usually by pressing a suspend button. |
| 2275 | * |
| 2276 | * Returns -EAGAIN to runtime_pm framework in case there are pending packets |
| 2277 | * in the Tx queue. This will postpone the suspend operation until all the |
| 2278 | * pending packets will be transmitted. |
| 2279 | * |
| 2280 | * In case there are no packets to send, releases the WWAN0_PROD entity. |
| 2281 | * As an outcome, the number of IPA active clients should be decremented |
| 2282 | * until IPA clocks can be gated. |
| 2283 | */ |
| 2284 | static int rmnet_ipa_ap_suspend(struct device *dev) |
| 2285 | { |
| 2286 | struct net_device *netdev = IPA_NETDEV(); |
| 2287 | struct ipa3_wwan_private *wwan_ptr; |
| 2288 | |
| 2289 | IPAWANDBG_LOW("Enter...\n"); |
| 2290 | if (netdev == NULL) { |
| 2291 | IPAWANERR("netdev is NULL.\n"); |
| 2292 | return 0; |
| 2293 | } |
| 2294 | |
| 2295 | wwan_ptr = netdev_priv(netdev); |
| 2296 | if (wwan_ptr == NULL) { |
| 2297 | IPAWANERR("wwan_ptr is NULL.\n"); |
| 2298 | return 0; |
| 2299 | } |
| 2300 | |
| 2301 | /* Do not allow A7 to suspend in case there are oustanding packets */ |
| 2302 | if (atomic_read(&wwan_ptr->outstanding_pkts) != 0) { |
| 2303 | IPAWANDBG("Outstanding packets, postponing AP suspend.\n"); |
| 2304 | return -EAGAIN; |
| 2305 | } |
| 2306 | |
| 2307 | /* Make sure that there is no Tx operation ongoing */ |
| 2308 | netif_tx_lock_bh(netdev); |
| 2309 | ipa_rm_release_resource(IPA_RM_RESOURCE_WWAN_0_PROD); |
| 2310 | netif_tx_unlock_bh(netdev); |
| 2311 | IPAWANDBG_LOW("Exit\n"); |
| 2312 | |
| 2313 | return 0; |
| 2314 | } |
| 2315 | |
| 2316 | /** |
| 2317 | * rmnet_ipa_ap_resume() - resume callback for runtime_pm |
| 2318 | * @dev: pointer to device |
| 2319 | * |
| 2320 | * This callback will be invoked by the runtime_pm framework when an AP resume |
| 2321 | * operation is invoked. |
| 2322 | * |
| 2323 | * Enables the network interface queue and returns success to the |
| 2324 | * runtime_pm framework. |
| 2325 | */ |
| 2326 | static int rmnet_ipa_ap_resume(struct device *dev) |
| 2327 | { |
| 2328 | struct net_device *netdev = IPA_NETDEV(); |
| 2329 | |
| 2330 | IPAWANDBG_LOW("Enter...\n"); |
| 2331 | if (netdev) |
| 2332 | netif_wake_queue(netdev); |
| 2333 | IPAWANDBG_LOW("Exit\n"); |
| 2334 | |
| 2335 | return 0; |
| 2336 | } |
| 2337 | |
| 2338 | static void ipa_stop_polling_stats(void) |
| 2339 | { |
| 2340 | cancel_delayed_work(&ipa_tether_stats_poll_wakequeue_work); |
| 2341 | ipa3_rmnet_ctx.polling_interval = 0; |
| 2342 | } |
| 2343 | |
| 2344 | static const struct of_device_id rmnet_ipa_dt_match[] = { |
| 2345 | {.compatible = "qcom,rmnet-ipa3"}, |
| 2346 | {}, |
| 2347 | }; |
| 2348 | MODULE_DEVICE_TABLE(of, rmnet_ipa_dt_match); |
| 2349 | |
| 2350 | static const struct dev_pm_ops rmnet_ipa_pm_ops = { |
| 2351 | .suspend_noirq = rmnet_ipa_ap_suspend, |
| 2352 | .resume_noirq = rmnet_ipa_ap_resume, |
| 2353 | }; |
| 2354 | |
| 2355 | static struct platform_driver rmnet_ipa_driver = { |
| 2356 | .driver = { |
| 2357 | .name = "rmnet_ipa3", |
| 2358 | .owner = THIS_MODULE, |
| 2359 | .pm = &rmnet_ipa_pm_ops, |
| 2360 | .of_match_table = rmnet_ipa_dt_match, |
| 2361 | }, |
| 2362 | .probe = ipa3_wwan_probe, |
| 2363 | .remove = ipa3_wwan_remove, |
| 2364 | }; |
| 2365 | |
| 2366 | static int ipa3_ssr_notifier_cb(struct notifier_block *this, |
| 2367 | unsigned long code, |
| 2368 | void *data) |
| 2369 | { |
| 2370 | if (!ipa3_rmnet_ctx.ipa_rmnet_ssr) |
| 2371 | return NOTIFY_DONE; |
| 2372 | |
| 2373 | switch (code) { |
| 2374 | case SUBSYS_BEFORE_SHUTDOWN: |
| 2375 | IPAWANINFO("IPA received MPSS BEFORE_SHUTDOWN\n"); |
| 2376 | atomic_set(&rmnet_ipa3_ctx->is_ssr, 1); |
| 2377 | ipa3_q6_pre_shutdown_cleanup(); |
| 2378 | if (IPA_NETDEV()) |
| 2379 | netif_stop_queue(IPA_NETDEV()); |
| 2380 | ipa3_qmi_stop_workqueues(); |
| 2381 | ipa3_wan_ioctl_stop_qmi_messages(); |
| 2382 | ipa_stop_polling_stats(); |
| 2383 | if (atomic_read(&rmnet_ipa3_ctx->is_initialized)) |
| 2384 | platform_driver_unregister(&rmnet_ipa_driver); |
| 2385 | IPAWANINFO("IPA BEFORE_SHUTDOWN handling is complete\n"); |
| 2386 | break; |
| 2387 | case SUBSYS_AFTER_SHUTDOWN: |
| 2388 | IPAWANINFO("IPA Received MPSS AFTER_SHUTDOWN\n"); |
| 2389 | if (atomic_read(&rmnet_ipa3_ctx->is_ssr)) |
| 2390 | ipa3_q6_post_shutdown_cleanup(); |
| 2391 | IPAWANINFO("IPA AFTER_SHUTDOWN handling is complete\n"); |
| 2392 | break; |
| 2393 | case SUBSYS_BEFORE_POWERUP: |
| 2394 | IPAWANINFO("IPA received MPSS BEFORE_POWERUP\n"); |
| 2395 | if (atomic_read(&rmnet_ipa3_ctx->is_ssr)) |
| 2396 | /* clean up cached QMI msg/handlers */ |
| 2397 | ipa3_qmi_service_exit(); |
| 2398 | /*hold a proxy vote for the modem*/ |
| 2399 | ipa3_proxy_clk_vote(); |
| 2400 | IPAWANINFO("IPA BEFORE_POWERUP handling is complete\n"); |
| 2401 | break; |
| 2402 | case SUBSYS_AFTER_POWERUP: |
| 2403 | IPAWANINFO("%s:%d IPA received MPSS AFTER_POWERUP\n", |
| 2404 | __func__, __LINE__); |
| 2405 | if (!atomic_read(&rmnet_ipa3_ctx->is_initialized) && |
| 2406 | atomic_read(&rmnet_ipa3_ctx->is_ssr)) |
| 2407 | platform_driver_register(&rmnet_ipa_driver); |
| 2408 | |
| 2409 | IPAWANINFO("IPA AFTER_POWERUP handling is complete\n"); |
| 2410 | break; |
| 2411 | default: |
| 2412 | IPAWANDBG("Unsupported subsys notification, IPA received: %lu", |
| 2413 | code); |
| 2414 | break; |
| 2415 | } |
| 2416 | |
| 2417 | IPAWANDBG_LOW("Exit\n"); |
| 2418 | return NOTIFY_DONE; |
| 2419 | } |
| 2420 | |
| 2421 | /** |
| 2422 | * rmnet_ipa_free_msg() - Free the msg sent to user space via ipa_send_msg |
| 2423 | * @buff: pointer to buffer containing the message |
| 2424 | * @len: message len |
| 2425 | * @type: message type |
| 2426 | * |
| 2427 | * This function is invoked when ipa_send_msg is complete (Provided as a |
| 2428 | * free function pointer along with the message). |
| 2429 | */ |
| 2430 | static void rmnet_ipa_free_msg(void *buff, u32 len, u32 type) |
| 2431 | { |
| 2432 | if (!buff) { |
| 2433 | IPAWANERR("Null buffer\n"); |
| 2434 | return; |
| 2435 | } |
| 2436 | |
| 2437 | if (type != IPA_TETHERING_STATS_UPDATE_STATS && |
| 2438 | type != IPA_TETHERING_STATS_UPDATE_NETWORK_STATS) { |
| 2439 | IPAWANERR("Wrong type given. buff %p type %d\n", |
| 2440 | buff, type); |
| 2441 | } |
| 2442 | kfree(buff); |
| 2443 | } |
| 2444 | |
| 2445 | /** |
| 2446 | * rmnet_ipa_get_stats_and_update() - Gets pipe stats from Modem |
| 2447 | * |
| 2448 | * This function queries the IPA Modem driver for the pipe stats |
| 2449 | * via QMI, and updates the user space IPA entity. |
| 2450 | */ |
| 2451 | static void rmnet_ipa_get_stats_and_update(void) |
| 2452 | { |
| 2453 | struct ipa_get_data_stats_req_msg_v01 req; |
| 2454 | struct ipa_get_data_stats_resp_msg_v01 *resp; |
| 2455 | struct ipa_msg_meta msg_meta; |
| 2456 | int rc; |
| 2457 | |
| 2458 | resp = kzalloc(sizeof(struct ipa_get_data_stats_resp_msg_v01), |
| 2459 | GFP_KERNEL); |
| 2460 | if (!resp) { |
| 2461 | IPAWANERR("Can't allocate memory for stats message\n"); |
| 2462 | return; |
| 2463 | } |
| 2464 | |
| 2465 | memset(&req, 0, sizeof(struct ipa_get_data_stats_req_msg_v01)); |
| 2466 | memset(resp, 0, sizeof(struct ipa_get_data_stats_resp_msg_v01)); |
| 2467 | |
| 2468 | req.ipa_stats_type = QMI_IPA_STATS_TYPE_PIPE_V01; |
| 2469 | |
| 2470 | rc = ipa3_qmi_get_data_stats(&req, resp); |
| 2471 | |
| 2472 | if (!rc) { |
| 2473 | memset(&msg_meta, 0, sizeof(struct ipa_msg_meta)); |
| 2474 | msg_meta.msg_type = IPA_TETHERING_STATS_UPDATE_STATS; |
| 2475 | msg_meta.msg_len = |
| 2476 | sizeof(struct ipa_get_data_stats_resp_msg_v01); |
| 2477 | rc = ipa_send_msg(&msg_meta, resp, rmnet_ipa_free_msg); |
| 2478 | if (rc) { |
| 2479 | IPAWANERR("ipa_send_msg failed: %d\n", rc); |
| 2480 | kfree(resp); |
| 2481 | return; |
| 2482 | } |
| 2483 | } |
| 2484 | } |
| 2485 | |
| 2486 | /** |
| 2487 | * tethering_stats_poll_queue() - Stats polling function |
| 2488 | * @work - Work entry |
| 2489 | * |
| 2490 | * This function is scheduled periodically (per the interval) in |
| 2491 | * order to poll the IPA Modem driver for the pipe stats. |
| 2492 | */ |
| 2493 | static void tethering_stats_poll_queue(struct work_struct *work) |
| 2494 | { |
| 2495 | rmnet_ipa_get_stats_and_update(); |
| 2496 | |
| 2497 | /* Schedule again only if there's an active polling interval */ |
| 2498 | if (ipa3_rmnet_ctx.polling_interval != 0) |
| 2499 | schedule_delayed_work(&ipa_tether_stats_poll_wakequeue_work, |
| 2500 | msecs_to_jiffies(ipa3_rmnet_ctx.polling_interval*1000)); |
| 2501 | } |
| 2502 | |
| 2503 | /** |
| 2504 | * rmnet_ipa_get_network_stats_and_update() - Get network stats from IPA Modem |
| 2505 | * |
| 2506 | * This function retrieves the data usage (used quota) from the IPA Modem driver |
| 2507 | * via QMI, and updates IPA user space entity. |
| 2508 | */ |
| 2509 | static void rmnet_ipa_get_network_stats_and_update(void) |
| 2510 | { |
| 2511 | struct ipa_get_apn_data_stats_req_msg_v01 req; |
| 2512 | struct ipa_get_apn_data_stats_resp_msg_v01 *resp; |
| 2513 | struct ipa_msg_meta msg_meta; |
| 2514 | int rc; |
| 2515 | |
| 2516 | resp = kzalloc(sizeof(struct ipa_get_apn_data_stats_resp_msg_v01), |
| 2517 | GFP_KERNEL); |
| 2518 | if (!resp) { |
| 2519 | IPAWANERR("Can't allocate memory for network stats message\n"); |
| 2520 | return; |
| 2521 | } |
| 2522 | |
| 2523 | memset(&req, 0, sizeof(struct ipa_get_apn_data_stats_req_msg_v01)); |
| 2524 | memset(resp, 0, sizeof(struct ipa_get_apn_data_stats_resp_msg_v01)); |
| 2525 | |
| 2526 | req.mux_id_list_valid = true; |
| 2527 | req.mux_id_list_len = 1; |
| 2528 | req.mux_id_list[0] = ipa3_rmnet_ctx.metered_mux_id; |
| 2529 | |
| 2530 | rc = ipa3_qmi_get_network_stats(&req, resp); |
| 2531 | |
| 2532 | if (!rc) { |
| 2533 | memset(&msg_meta, 0, sizeof(struct ipa_msg_meta)); |
| 2534 | msg_meta.msg_type = IPA_TETHERING_STATS_UPDATE_NETWORK_STATS; |
| 2535 | msg_meta.msg_len = |
| 2536 | sizeof(struct ipa_get_apn_data_stats_resp_msg_v01); |
| 2537 | rc = ipa_send_msg(&msg_meta, resp, rmnet_ipa_free_msg); |
| 2538 | if (rc) { |
| 2539 | IPAWANERR("ipa_send_msg failed: %d\n", rc); |
| 2540 | kfree(resp); |
| 2541 | return; |
| 2542 | } |
| 2543 | } |
| 2544 | } |
| 2545 | |
| 2546 | /** |
| 2547 | * rmnet_ipa3_poll_tethering_stats() - Tethering stats polling IOCTL handler |
| 2548 | * @data - IOCTL data |
| 2549 | * |
| 2550 | * This function handles WAN_IOC_POLL_TETHERING_STATS. |
| 2551 | * In case polling interval received is 0, polling will stop |
| 2552 | * (If there's a polling in progress, it will allow it to finish), and then will |
| 2553 | * fetch network stats, and update the IPA user space. |
| 2554 | * |
| 2555 | * Return codes: |
| 2556 | * 0: Success |
| 2557 | */ |
| 2558 | int rmnet_ipa3_poll_tethering_stats(struct wan_ioctl_poll_tethering_stats *data) |
| 2559 | { |
| 2560 | ipa3_rmnet_ctx.polling_interval = data->polling_interval_secs; |
| 2561 | |
| 2562 | cancel_delayed_work_sync(&ipa_tether_stats_poll_wakequeue_work); |
| 2563 | |
| 2564 | if (ipa3_rmnet_ctx.polling_interval == 0) { |
| 2565 | ipa3_qmi_stop_data_qouta(); |
| 2566 | rmnet_ipa_get_network_stats_and_update(); |
| 2567 | rmnet_ipa_get_stats_and_update(); |
| 2568 | return 0; |
| 2569 | } |
| 2570 | |
| 2571 | schedule_delayed_work(&ipa_tether_stats_poll_wakequeue_work, 0); |
| 2572 | return 0; |
| 2573 | } |
| 2574 | |
| 2575 | /** |
| 2576 | * rmnet_ipa_set_data_quota() - Data quota setting IOCTL handler |
| 2577 | * @data - IOCTL data |
| 2578 | * |
| 2579 | * This function handles WAN_IOC_SET_DATA_QUOTA. |
| 2580 | * It translates the given interface name to the Modem MUX ID and |
| 2581 | * sends the request of the quota to the IPA Modem driver via QMI. |
| 2582 | * |
| 2583 | * Return codes: |
| 2584 | * 0: Success |
| 2585 | * -EFAULT: Invalid interface name provided |
| 2586 | * other: See ipa_qmi_set_data_quota |
| 2587 | */ |
| 2588 | int rmnet_ipa3_set_data_quota(struct wan_ioctl_set_data_quota *data) |
| 2589 | { |
| 2590 | u32 mux_id; |
| 2591 | int index; |
| 2592 | struct ipa_set_data_usage_quota_req_msg_v01 req; |
| 2593 | |
| 2594 | index = find_vchannel_name_index(data->interface_name); |
| 2595 | IPAWANERR("iface name %s, quota %lu\n", |
| 2596 | data->interface_name, |
| 2597 | (unsigned long int) data->quota_mbytes); |
| 2598 | |
| 2599 | if (index == MAX_NUM_OF_MUX_CHANNEL) { |
| 2600 | IPAWANERR("%s is an invalid iface name\n", |
| 2601 | data->interface_name); |
| 2602 | return -EFAULT; |
| 2603 | } |
| 2604 | |
| 2605 | mux_id = rmnet_ipa3_ctx->mux_channel[index].mux_id; |
| 2606 | ipa3_rmnet_ctx.metered_mux_id = mux_id; |
| 2607 | |
| 2608 | memset(&req, 0, sizeof(struct ipa_set_data_usage_quota_req_msg_v01)); |
| 2609 | req.apn_quota_list_valid = true; |
| 2610 | req.apn_quota_list_len = 1; |
| 2611 | req.apn_quota_list[0].mux_id = mux_id; |
| 2612 | req.apn_quota_list[0].num_Mbytes = data->quota_mbytes; |
| 2613 | |
| 2614 | return ipa3_qmi_set_data_quota(&req); |
| 2615 | } |
| 2616 | |
| 2617 | /* rmnet_ipa_set_tether_client_pipe() - |
| 2618 | * @data - IOCTL data |
| 2619 | * |
| 2620 | * This function handles WAN_IOC_SET_DATA_QUOTA. |
| 2621 | * It translates the given interface name to the Modem MUX ID and |
| 2622 | * sends the request of the quota to the IPA Modem driver via QMI. |
| 2623 | * |
| 2624 | * Return codes: |
| 2625 | * 0: Success |
| 2626 | * -EFAULT: Invalid interface name provided |
| 2627 | * other: See ipa_qmi_set_data_quota |
| 2628 | */ |
| 2629 | int rmnet_ipa3_set_tether_client_pipe( |
| 2630 | struct wan_ioctl_set_tether_client_pipe *data) |
| 2631 | { |
| 2632 | int number, i; |
| 2633 | |
| 2634 | IPAWANDBG("client %d, UL %d, DL %d, reset %d\n", |
| 2635 | data->ipa_client, |
| 2636 | data->ul_src_pipe_len, |
| 2637 | data->dl_dst_pipe_len, |
| 2638 | data->reset_client); |
| 2639 | number = data->ul_src_pipe_len; |
| 2640 | for (i = 0; i < number; i++) { |
| 2641 | IPAWANDBG("UL index-%d pipe %d\n", i, |
| 2642 | data->ul_src_pipe_list[i]); |
| 2643 | if (data->reset_client) |
| 2644 | ipa3_set_client(data->ul_src_pipe_list[i], |
| 2645 | 0, false); |
| 2646 | else |
| 2647 | ipa3_set_client(data->ul_src_pipe_list[i], |
| 2648 | data->ipa_client, true); |
| 2649 | } |
| 2650 | number = data->dl_dst_pipe_len; |
| 2651 | for (i = 0; i < number; i++) { |
| 2652 | IPAWANDBG("DL index-%d pipe %d\n", i, |
| 2653 | data->dl_dst_pipe_list[i]); |
| 2654 | if (data->reset_client) |
| 2655 | ipa3_set_client(data->dl_dst_pipe_list[i], |
| 2656 | 0, false); |
| 2657 | else |
| 2658 | ipa3_set_client(data->dl_dst_pipe_list[i], |
| 2659 | data->ipa_client, false); |
| 2660 | } |
| 2661 | return 0; |
| 2662 | } |
| 2663 | |
| 2664 | int rmnet_ipa3_query_tethering_stats(struct wan_ioctl_query_tether_stats *data, |
| 2665 | bool reset) |
| 2666 | { |
| 2667 | struct ipa_get_data_stats_req_msg_v01 *req; |
| 2668 | struct ipa_get_data_stats_resp_msg_v01 *resp; |
| 2669 | int pipe_len, rc; |
| 2670 | |
| 2671 | req = kzalloc(sizeof(struct ipa_get_data_stats_req_msg_v01), |
| 2672 | GFP_KERNEL); |
| 2673 | if (!req) { |
| 2674 | IPAWANERR("Can't allocate memory for stats message\n"); |
| 2675 | return -ENOMEM; |
| 2676 | } |
| 2677 | resp = kzalloc(sizeof(struct ipa_get_data_stats_resp_msg_v01), |
| 2678 | GFP_KERNEL); |
| 2679 | if (!resp) { |
| 2680 | IPAWANERR("Can't allocate memory for stats message\n"); |
| 2681 | kfree(req); |
| 2682 | return -ENOMEM; |
| 2683 | } |
| 2684 | memset(req, 0, sizeof(struct ipa_get_data_stats_req_msg_v01)); |
| 2685 | memset(resp, 0, sizeof(struct ipa_get_data_stats_resp_msg_v01)); |
| 2686 | |
| 2687 | req->ipa_stats_type = QMI_IPA_STATS_TYPE_PIPE_V01; |
| 2688 | if (reset) { |
| 2689 | req->reset_stats_valid = true; |
| 2690 | req->reset_stats = true; |
| 2691 | IPAWANERR("reset the pipe stats\n"); |
| 2692 | } else { |
| 2693 | /* print tethered-client enum */ |
| 2694 | IPAWANDBG_LOW("Tethered-client enum(%d)\n", data->ipa_client); |
| 2695 | } |
| 2696 | |
| 2697 | rc = ipa3_qmi_get_data_stats(req, resp); |
| 2698 | if (rc) { |
| 2699 | IPAWANERR("can't get ipa_qmi_get_data_stats\n"); |
| 2700 | kfree(req); |
| 2701 | kfree(resp); |
| 2702 | return rc; |
| 2703 | } else if (reset) { |
| 2704 | kfree(req); |
| 2705 | kfree(resp); |
| 2706 | return 0; |
| 2707 | } |
| 2708 | |
| 2709 | if (resp->dl_dst_pipe_stats_list_valid) { |
| 2710 | for (pipe_len = 0; pipe_len < resp->dl_dst_pipe_stats_list_len; |
| 2711 | pipe_len++) { |
| 2712 | IPAWANDBG_LOW("Check entry(%d) dl_dst_pipe(%d)\n", |
| 2713 | pipe_len, resp->dl_dst_pipe_stats_list |
| 2714 | [pipe_len].pipe_index); |
| 2715 | IPAWANDBG_LOW("dl_p_v4(%lu)v6(%lu)\n", |
| 2716 | (unsigned long int) resp-> |
| 2717 | dl_dst_pipe_stats_list[pipe_len]. |
| 2718 | num_ipv4_packets, |
| 2719 | (unsigned long int) resp-> |
| 2720 | dl_dst_pipe_stats_list[pipe_len]. |
| 2721 | num_ipv6_packets); |
| 2722 | IPAWANDBG_LOW("dl_b_v4(%lu)v6(%lu)\n", |
| 2723 | (unsigned long int) resp-> |
| 2724 | dl_dst_pipe_stats_list[pipe_len]. |
| 2725 | num_ipv4_bytes, |
| 2726 | (unsigned long int) resp-> |
| 2727 | dl_dst_pipe_stats_list[pipe_len]. |
| 2728 | num_ipv6_bytes); |
| 2729 | if (ipa_get_client_uplink(resp-> |
| 2730 | dl_dst_pipe_stats_list[pipe_len]. |
| 2731 | pipe_index) == false) { |
| 2732 | if (data->ipa_client == ipa_get_client(resp-> |
| 2733 | dl_dst_pipe_stats_list[pipe_len]. |
| 2734 | pipe_index)) { |
| 2735 | /* update the DL stats */ |
| 2736 | data->ipv4_rx_packets += resp-> |
| 2737 | dl_dst_pipe_stats_list[pipe_len]. |
| 2738 | num_ipv4_packets; |
| 2739 | data->ipv6_rx_packets += resp-> |
| 2740 | dl_dst_pipe_stats_list[pipe_len]. |
| 2741 | num_ipv6_packets; |
| 2742 | data->ipv4_rx_bytes += resp-> |
| 2743 | dl_dst_pipe_stats_list[pipe_len]. |
| 2744 | num_ipv4_bytes; |
| 2745 | data->ipv6_rx_bytes += resp-> |
| 2746 | dl_dst_pipe_stats_list[pipe_len]. |
| 2747 | num_ipv6_bytes; |
| 2748 | } |
| 2749 | } |
| 2750 | } |
| 2751 | } |
| 2752 | IPAWANDBG_LOW("v4_rx_p(%lu) v6_rx_p(%lu) v4_rx_b(%lu) v6_rx_b(%lu)\n", |
| 2753 | (unsigned long int) data->ipv4_rx_packets, |
| 2754 | (unsigned long int) data->ipv6_rx_packets, |
| 2755 | (unsigned long int) data->ipv4_rx_bytes, |
| 2756 | (unsigned long int) data->ipv6_rx_bytes); |
| 2757 | |
| 2758 | if (resp->ul_src_pipe_stats_list_valid) { |
| 2759 | for (pipe_len = 0; pipe_len < resp->ul_src_pipe_stats_list_len; |
| 2760 | pipe_len++) { |
| 2761 | IPAWANDBG_LOW("Check entry(%d) ul_dst_pipe(%d)\n", |
| 2762 | pipe_len, |
| 2763 | resp->ul_src_pipe_stats_list[pipe_len]. |
| 2764 | pipe_index); |
| 2765 | IPAWANDBG_LOW("ul_p_v4(%lu)v6(%lu)\n", |
| 2766 | (unsigned long int) resp-> |
| 2767 | ul_src_pipe_stats_list[pipe_len]. |
| 2768 | num_ipv4_packets, |
| 2769 | (unsigned long int) resp-> |
| 2770 | ul_src_pipe_stats_list[pipe_len]. |
| 2771 | num_ipv6_packets); |
| 2772 | IPAWANDBG_LOW("ul_b_v4(%lu)v6(%lu)\n", |
| 2773 | (unsigned long int) resp-> |
| 2774 | ul_src_pipe_stats_list[pipe_len]. |
| 2775 | num_ipv4_bytes, |
| 2776 | (unsigned long int) resp-> |
| 2777 | ul_src_pipe_stats_list[pipe_len]. |
| 2778 | num_ipv6_bytes); |
| 2779 | if (ipa_get_client_uplink(resp-> |
| 2780 | ul_src_pipe_stats_list[pipe_len]. |
| 2781 | pipe_index) == true) { |
| 2782 | if (data->ipa_client == ipa_get_client(resp-> |
| 2783 | ul_src_pipe_stats_list[pipe_len]. |
| 2784 | pipe_index)) { |
| 2785 | /* update the DL stats */ |
| 2786 | data->ipv4_tx_packets += resp-> |
| 2787 | ul_src_pipe_stats_list[pipe_len]. |
| 2788 | num_ipv4_packets; |
| 2789 | data->ipv6_tx_packets += resp-> |
| 2790 | ul_src_pipe_stats_list[pipe_len]. |
| 2791 | num_ipv6_packets; |
| 2792 | data->ipv4_tx_bytes += resp-> |
| 2793 | ul_src_pipe_stats_list[pipe_len]. |
| 2794 | num_ipv4_bytes; |
| 2795 | data->ipv6_tx_bytes += resp-> |
| 2796 | ul_src_pipe_stats_list[pipe_len]. |
| 2797 | num_ipv6_bytes; |
| 2798 | } |
| 2799 | } |
| 2800 | } |
| 2801 | } |
| 2802 | IPAWANDBG_LOW("tx_p_v4(%lu)v6(%lu)tx_b_v4(%lu) v6(%lu)\n", |
| 2803 | (unsigned long int) data->ipv4_tx_packets, |
| 2804 | (unsigned long int) data->ipv6_tx_packets, |
| 2805 | (unsigned long int) data->ipv4_tx_bytes, |
| 2806 | (unsigned long int) data->ipv6_tx_bytes); |
| 2807 | kfree(req); |
| 2808 | kfree(resp); |
| 2809 | return 0; |
| 2810 | } |
| 2811 | |
| 2812 | /** |
| 2813 | * ipa3_broadcast_quota_reach_ind() - Send Netlink broadcast on Quota |
| 2814 | * @mux_id - The MUX ID on which the quota has been reached |
| 2815 | * |
| 2816 | * This function broadcasts a Netlink event using the kobject of the |
| 2817 | * rmnet_ipa interface in order to alert the user space that the quota |
| 2818 | * on the specific interface which matches the mux_id has been reached. |
| 2819 | * |
| 2820 | */ |
| 2821 | void ipa3_broadcast_quota_reach_ind(u32 mux_id) |
| 2822 | { |
| 2823 | char alert_msg[IPA_QUOTA_REACH_ALERT_MAX_SIZE]; |
| 2824 | char iface_name_m[IPA_QUOTA_REACH_IF_NAME_MAX_SIZE]; |
| 2825 | char iface_name_l[IPA_QUOTA_REACH_IF_NAME_MAX_SIZE]; |
| 2826 | char *envp[IPA_UEVENT_NUM_EVNP] = { |
| 2827 | alert_msg, iface_name_l, iface_name_m, NULL }; |
| 2828 | int res; |
| 2829 | int index; |
| 2830 | |
| 2831 | index = ipa3_find_mux_channel_index(mux_id); |
| 2832 | |
| 2833 | if (index == MAX_NUM_OF_MUX_CHANNEL) { |
| 2834 | IPAWANERR("%u is an mux ID\n", mux_id); |
| 2835 | return; |
| 2836 | } |
| 2837 | |
| 2838 | res = snprintf(alert_msg, IPA_QUOTA_REACH_ALERT_MAX_SIZE, |
| 2839 | "ALERT_NAME=%s", "quotaReachedAlert"); |
| 2840 | if (res >= IPA_QUOTA_REACH_ALERT_MAX_SIZE) { |
| 2841 | IPAWANERR("message too long (%d)", res); |
| 2842 | return; |
| 2843 | } |
| 2844 | /* posting msg for L-release for CNE */ |
| 2845 | res = snprintf(iface_name_l, IPA_QUOTA_REACH_IF_NAME_MAX_SIZE, |
| 2846 | "UPSTREAM=%s", rmnet_ipa3_ctx->mux_channel[index].vchannel_name); |
| 2847 | if (res >= IPA_QUOTA_REACH_IF_NAME_MAX_SIZE) { |
| 2848 | IPAWANERR("message too long (%d)", res); |
| 2849 | return; |
| 2850 | } |
| 2851 | /* posting msg for M-release for CNE */ |
| 2852 | res = snprintf(iface_name_m, IPA_QUOTA_REACH_IF_NAME_MAX_SIZE, |
| 2853 | "INTERFACE=%s", rmnet_ipa3_ctx->mux_channel[index].vchannel_name); |
| 2854 | if (res >= IPA_QUOTA_REACH_IF_NAME_MAX_SIZE) { |
| 2855 | IPAWANERR("message too long (%d)", res); |
| 2856 | return; |
| 2857 | } |
| 2858 | |
| 2859 | IPAWANERR("putting nlmsg: <%s> <%s> <%s>\n", |
| 2860 | alert_msg, iface_name_l, iface_name_m); |
| 2861 | kobject_uevent_env(&(IPA_NETDEV()->dev.kobj), |
| 2862 | KOBJ_CHANGE, envp); |
| 2863 | } |
| 2864 | |
| 2865 | /** |
| 2866 | * ipa3_q6_handshake_complete() - Perform operations once Q6 is up |
| 2867 | * @ssr_bootup - Indicates whether this is a cold boot-up or post-SSR. |
| 2868 | * |
| 2869 | * This function is invoked once the handshake between the IPA AP driver |
| 2870 | * and IPA Q6 driver is complete. At this point, it is possible to perform |
| 2871 | * operations which can't be performed until IPA Q6 driver is up. |
| 2872 | * |
| 2873 | */ |
| 2874 | void ipa3_q6_handshake_complete(bool ssr_bootup) |
| 2875 | { |
| 2876 | /* It is required to recover the network stats after SSR recovery */ |
| 2877 | if (ssr_bootup) { |
| 2878 | /* |
| 2879 | * In case the uC is required to be loaded by the Modem, |
| 2880 | * the proxy vote will be removed only when uC loading is |
| 2881 | * complete and indication is received by the AP. After SSR, |
| 2882 | * uC is already loaded. Therefore, proxy vote can be removed |
| 2883 | * once Modem init is complete. |
| 2884 | */ |
| 2885 | ipa3_proxy_clk_unvote(); |
| 2886 | |
| 2887 | /* |
| 2888 | * It is required to recover the network stats after |
| 2889 | * SSR recovery |
| 2890 | */ |
| 2891 | rmnet_ipa_get_network_stats_and_update(); |
| 2892 | } |
| 2893 | } |
| 2894 | |
| 2895 | static int __init ipa3_wwan_init(void) |
| 2896 | { |
| 2897 | rmnet_ipa3_ctx = kzalloc(sizeof(*rmnet_ipa3_ctx), GFP_KERNEL); |
| 2898 | if (!rmnet_ipa3_ctx) { |
| 2899 | IPAWANERR("no memory\n"); |
| 2900 | return -ENOMEM; |
| 2901 | } |
| 2902 | |
| 2903 | atomic_set(&rmnet_ipa3_ctx->is_initialized, 0); |
| 2904 | atomic_set(&rmnet_ipa3_ctx->is_ssr, 0); |
| 2905 | |
| 2906 | mutex_init(&rmnet_ipa3_ctx->ipa_to_apps_pipe_handle_guard); |
| 2907 | rmnet_ipa3_ctx->ipa3_to_apps_hdl = -1; |
| 2908 | /* Register for Modem SSR */ |
| 2909 | rmnet_ipa3_ctx->subsys_notify_handle = subsys_notif_register_notifier( |
| 2910 | SUBSYS_MODEM, |
| 2911 | &ipa3_ssr_notifier); |
| 2912 | if (!IS_ERR(rmnet_ipa3_ctx->subsys_notify_handle)) |
| 2913 | return platform_driver_register(&rmnet_ipa_driver); |
| 2914 | else |
| 2915 | return (int)PTR_ERR(rmnet_ipa3_ctx->subsys_notify_handle); |
| 2916 | } |
| 2917 | |
| 2918 | static void __exit ipa3_wwan_cleanup(void) |
| 2919 | { |
| 2920 | int ret; |
| 2921 | |
| 2922 | mutex_destroy(&rmnet_ipa3_ctx->ipa_to_apps_pipe_handle_guard); |
| 2923 | ret = subsys_notif_unregister_notifier( |
| 2924 | rmnet_ipa3_ctx->subsys_notify_handle, &ipa3_ssr_notifier); |
| 2925 | if (ret) |
| 2926 | IPAWANERR( |
| 2927 | "Error subsys_notif_unregister_notifier system %s, ret=%d\n", |
| 2928 | SUBSYS_MODEM, ret); |
| 2929 | platform_driver_unregister(&rmnet_ipa_driver); |
| 2930 | kfree(rmnet_ipa3_ctx); |
| 2931 | rmnet_ipa3_ctx = NULL; |
| 2932 | } |
| 2933 | |
| 2934 | static void ipa3_wwan_msg_free_cb(void *buff, u32 len, u32 type) |
| 2935 | { |
| 2936 | if (!buff) |
| 2937 | IPAWANERR("Null buffer.\n"); |
| 2938 | kfree(buff); |
| 2939 | } |
| 2940 | |
| 2941 | static void ipa3_rmnet_rx_cb(void *priv) |
| 2942 | { |
| 2943 | IPAWANDBG_LOW("\n"); |
| 2944 | napi_schedule(&(rmnet_ipa3_ctx->wwan_priv->napi)); |
| 2945 | } |
| 2946 | |
| 2947 | static int ipa3_rmnet_poll(struct napi_struct *napi, int budget) |
| 2948 | { |
| 2949 | int rcvd_pkts = 0; |
| 2950 | |
| 2951 | rcvd_pkts = ipa_rx_poll(rmnet_ipa3_ctx->ipa3_to_apps_hdl, |
| 2952 | NAPI_WEIGHT); |
| 2953 | IPAWANDBG_LOW("rcvd packets: %d\n", rcvd_pkts); |
| 2954 | return rcvd_pkts; |
| 2955 | } |
| 2956 | |
| 2957 | late_initcall(ipa3_wwan_init); |
| 2958 | module_exit(ipa3_wwan_cleanup); |
| 2959 | MODULE_DESCRIPTION("WWAN Network Interface"); |
| 2960 | MODULE_LICENSE("GPL v2"); |