1 // SPDX-License-Identifier: BSD-3-Clause-Clear 2 /* 3 * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. 4 */ 5 6 #include <linux/vmalloc.h> 7 8 #include "core.h" 9 #include "peer.h" 10 #include "debug.h" 11 12 void 13 ath11k_accumulate_per_peer_tx_stats(struct ath11k_sta *arsta, 14 struct ath11k_per_peer_tx_stats *peer_stats, 15 u8 legacy_rate_idx) 16 { 17 struct rate_info *txrate = &arsta->txrate; 18 struct ath11k_htt_tx_stats *tx_stats; 19 int gi, mcs, bw, nss; 20 21 if (!arsta->tx_stats) 22 return; 23 24 tx_stats = arsta->tx_stats; 25 gi = FIELD_GET(RATE_INFO_FLAGS_SHORT_GI, arsta->txrate.flags); 26 mcs = txrate->mcs; 27 bw = txrate->bw; 28 nss = txrate->nss - 1; 29 30 #define STATS_OP_FMT(name) tx_stats->stats[ATH11K_STATS_TYPE_##name] 31 32 if (txrate->flags & RATE_INFO_FLAGS_HE_MCS) { 33 STATS_OP_FMT(SUCC).he[0][mcs] += peer_stats->succ_bytes; 34 STATS_OP_FMT(SUCC).he[1][mcs] += peer_stats->succ_pkts; 35 STATS_OP_FMT(FAIL).he[0][mcs] += peer_stats->failed_bytes; 36 STATS_OP_FMT(FAIL).he[1][mcs] += peer_stats->failed_pkts; 37 STATS_OP_FMT(RETRY).he[0][mcs] += peer_stats->retry_bytes; 38 STATS_OP_FMT(RETRY).he[1][mcs] += peer_stats->retry_pkts; 39 } else if (txrate->flags & RATE_INFO_FLAGS_VHT_MCS) { 40 STATS_OP_FMT(SUCC).vht[0][mcs] += peer_stats->succ_bytes; 41 STATS_OP_FMT(SUCC).vht[1][mcs] += peer_stats->succ_pkts; 42 STATS_OP_FMT(FAIL).vht[0][mcs] += peer_stats->failed_bytes; 43 STATS_OP_FMT(FAIL).vht[1][mcs] += peer_stats->failed_pkts; 44 STATS_OP_FMT(RETRY).vht[0][mcs] += peer_stats->retry_bytes; 45 STATS_OP_FMT(RETRY).vht[1][mcs] += peer_stats->retry_pkts; 46 } else if (txrate->flags & RATE_INFO_FLAGS_MCS) { 47 STATS_OP_FMT(SUCC).ht[0][mcs] += peer_stats->succ_bytes; 48 STATS_OP_FMT(SUCC).ht[1][mcs] += peer_stats->succ_pkts; 49 STATS_OP_FMT(FAIL).ht[0][mcs] += peer_stats->failed_bytes; 50 STATS_OP_FMT(FAIL).ht[1][mcs] += peer_stats->failed_pkts; 51 STATS_OP_FMT(RETRY).ht[0][mcs] += peer_stats->retry_bytes; 52 STATS_OP_FMT(RETRY).ht[1][mcs] += peer_stats->retry_pkts; 53 } else { 54 mcs = legacy_rate_idx; 55 56 STATS_OP_FMT(SUCC).legacy[0][mcs] += peer_stats->succ_bytes; 57 STATS_OP_FMT(SUCC).legacy[1][mcs] += peer_stats->succ_pkts; 58 STATS_OP_FMT(FAIL).legacy[0][mcs] += peer_stats->failed_bytes; 59 STATS_OP_FMT(FAIL).legacy[1][mcs] += peer_stats->failed_pkts; 60 STATS_OP_FMT(RETRY).legacy[0][mcs] += peer_stats->retry_bytes; 61 STATS_OP_FMT(RETRY).legacy[1][mcs] += peer_stats->retry_pkts; 62 } 63 64 if (peer_stats->is_ampdu) { 65 tx_stats->ba_fails += peer_stats->ba_fails; 66 67 if (txrate->flags & RATE_INFO_FLAGS_HE_MCS) { 68 STATS_OP_FMT(AMPDU).he[0][mcs] += 69 peer_stats->succ_bytes + peer_stats->retry_bytes; 70 STATS_OP_FMT(AMPDU).he[1][mcs] += 71 peer_stats->succ_pkts + peer_stats->retry_pkts; 72 } else if (txrate->flags & RATE_INFO_FLAGS_MCS) { 73 STATS_OP_FMT(AMPDU).ht[0][mcs] += 74 peer_stats->succ_bytes + peer_stats->retry_bytes; 75 STATS_OP_FMT(AMPDU).ht[1][mcs] += 76 peer_stats->succ_pkts + peer_stats->retry_pkts; 77 } else { 78 STATS_OP_FMT(AMPDU).vht[0][mcs] += 79 peer_stats->succ_bytes + peer_stats->retry_bytes; 80 STATS_OP_FMT(AMPDU).vht[1][mcs] += 81 peer_stats->succ_pkts + peer_stats->retry_pkts; 82 } 83 STATS_OP_FMT(AMPDU).bw[0][bw] += 84 peer_stats->succ_bytes + peer_stats->retry_bytes; 85 STATS_OP_FMT(AMPDU).nss[0][nss] += 86 peer_stats->succ_bytes + peer_stats->retry_bytes; 87 STATS_OP_FMT(AMPDU).gi[0][gi] += 88 peer_stats->succ_bytes + peer_stats->retry_bytes; 89 STATS_OP_FMT(AMPDU).bw[1][bw] += 90 peer_stats->succ_pkts + peer_stats->retry_pkts; 91 STATS_OP_FMT(AMPDU).nss[1][nss] += 92 peer_stats->succ_pkts + peer_stats->retry_pkts; 93 STATS_OP_FMT(AMPDU).gi[1][gi] += 94 peer_stats->succ_pkts + peer_stats->retry_pkts; 95 } else { 96 tx_stats->ack_fails += peer_stats->ba_fails; 97 } 98 99 STATS_OP_FMT(SUCC).bw[0][bw] += peer_stats->succ_bytes; 100 STATS_OP_FMT(SUCC).nss[0][nss] += peer_stats->succ_bytes; 101 STATS_OP_FMT(SUCC).gi[0][gi] += peer_stats->succ_bytes; 102 103 STATS_OP_FMT(SUCC).bw[1][bw] += peer_stats->succ_pkts; 104 STATS_OP_FMT(SUCC).nss[1][nss] += peer_stats->succ_pkts; 105 STATS_OP_FMT(SUCC).gi[1][gi] += peer_stats->succ_pkts; 106 107 STATS_OP_FMT(FAIL).bw[0][bw] += peer_stats->failed_bytes; 108 STATS_OP_FMT(FAIL).nss[0][nss] += peer_stats->failed_bytes; 109 STATS_OP_FMT(FAIL).gi[0][gi] += peer_stats->failed_bytes; 110 111 STATS_OP_FMT(FAIL).bw[1][bw] += peer_stats->failed_pkts; 112 STATS_OP_FMT(FAIL).nss[1][nss] += peer_stats->failed_pkts; 113 STATS_OP_FMT(FAIL).gi[1][gi] += peer_stats->failed_pkts; 114 115 STATS_OP_FMT(RETRY).bw[0][bw] += peer_stats->retry_bytes; 116 STATS_OP_FMT(RETRY).nss[0][nss] += peer_stats->retry_bytes; 117 STATS_OP_FMT(RETRY).gi[0][gi] += peer_stats->retry_bytes; 118 119 STATS_OP_FMT(RETRY).bw[1][bw] += peer_stats->retry_pkts; 120 STATS_OP_FMT(RETRY).nss[1][nss] += peer_stats->retry_pkts; 121 STATS_OP_FMT(RETRY).gi[1][gi] += peer_stats->retry_pkts; 122 123 tx_stats->tx_duration += peer_stats->duration; 124 } 125 126 void ath11k_update_per_peer_stats_from_txcompl(struct ath11k *ar, 127 struct sk_buff *msdu, 128 struct hal_tx_status *ts) 129 { 130 struct ath11k_base *ab = ar->ab; 131 struct ath11k_per_peer_tx_stats *peer_stats = &ar->cached_stats; 132 struct ath11k_peer *peer; 133 struct ath11k_sta *arsta; 134 struct ieee80211_sta *sta; 135 u16 rate; 136 u8 rate_idx; 137 int ret; 138 139 rcu_read_lock(); 140 spin_lock_bh(&ab->base_lock); 141 peer = ath11k_peer_find_by_id(ab, ts->peer_id); 142 if (!peer || !peer->sta) { 143 ath11k_warn(ab, "failed to find the peer\n"); 144 spin_unlock_bh(&ab->base_lock); 145 rcu_read_unlock(); 146 return; 147 } 148 149 sta = peer->sta; 150 arsta = (struct ath11k_sta *)sta->drv_priv; 151 152 memset(&arsta->txrate, 0, sizeof(arsta->txrate)); 153 154 if (ts->pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11A || 155 ts->pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11B) { 156 ret = ath11k_mac_hw_ratecode_to_legacy_rate(ts->mcs, 157 ts->pkt_type, 158 &rate_idx, 159 &rate); 160 if (ret < 0) { 161 spin_unlock_bh(&ab->base_lock); 162 rcu_read_unlock(); 163 return; 164 } 165 arsta->txrate.legacy = rate; 166 } else if (ts->pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11N) { 167 if (ts->mcs > 7) { 168 ath11k_warn(ab, "Invalid HT mcs index %d\n", ts->mcs); 169 spin_unlock_bh(&ab->base_lock); 170 rcu_read_unlock(); 171 return; 172 } 173 174 arsta->txrate.mcs = ts->mcs + 8 * (arsta->last_txrate.nss - 1); 175 arsta->txrate.flags = RATE_INFO_FLAGS_MCS; 176 if (ts->sgi) 177 arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 178 } else if (ts->pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11AC) { 179 if (ts->mcs > 9) { 180 ath11k_warn(ab, "Invalid VHT mcs index %d\n", ts->mcs); 181 spin_unlock_bh(&ab->base_lock); 182 rcu_read_unlock(); 183 return; 184 } 185 186 arsta->txrate.mcs = ts->mcs; 187 arsta->txrate.flags = RATE_INFO_FLAGS_VHT_MCS; 188 if (ts->sgi) 189 arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 190 } else { 191 /*TODO: update HE rates */ 192 } 193 194 arsta->txrate.nss = arsta->last_txrate.nss; 195 arsta->txrate.bw = ath11k_mac_bw_to_mac80211_bw(ts->bw); 196 197 ath11k_accumulate_per_peer_tx_stats(arsta, peer_stats, rate_idx); 198 spin_unlock_bh(&ab->base_lock); 199 rcu_read_unlock(); 200 } 201 202 static ssize_t ath11k_dbg_sta_dump_tx_stats(struct file *file, 203 char __user *user_buf, 204 size_t count, loff_t *ppos) 205 { 206 struct ieee80211_sta *sta = file->private_data; 207 struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv; 208 struct ath11k *ar = arsta->arvif->ar; 209 struct ath11k_htt_data_stats *stats; 210 static const char *str_name[ATH11K_STATS_TYPE_MAX] = {"succ", "fail", 211 "retry", "ampdu"}; 212 static const char *str[ATH11K_COUNTER_TYPE_MAX] = {"bytes", "packets"}; 213 int len = 0, i, j, k, retval = 0; 214 const int size = 2 * 4096; 215 char *buf; 216 217 buf = kzalloc(size, GFP_KERNEL); 218 if (!buf) 219 return -ENOMEM; 220 221 mutex_lock(&ar->conf_mutex); 222 223 spin_lock_bh(&ar->data_lock); 224 for (k = 0; k < ATH11K_STATS_TYPE_MAX; k++) { 225 for (j = 0; j < ATH11K_COUNTER_TYPE_MAX; j++) { 226 stats = &arsta->tx_stats->stats[k]; 227 len += scnprintf(buf + len, size - len, "%s_%s\n", 228 str_name[k], 229 str[j]); 230 len += scnprintf(buf + len, size - len, 231 " HE MCS %s\n", 232 str[j]); 233 for (i = 0; i < ATH11K_HE_MCS_NUM; i++) 234 len += scnprintf(buf + len, size - len, 235 " %llu ", 236 stats->he[j][i]); 237 len += scnprintf(buf + len, size - len, "\n"); 238 len += scnprintf(buf + len, size - len, 239 " VHT MCS %s\n", 240 str[j]); 241 for (i = 0; i < ATH11K_VHT_MCS_NUM; i++) 242 len += scnprintf(buf + len, size - len, 243 " %llu ", 244 stats->vht[j][i]); 245 len += scnprintf(buf + len, size - len, "\n"); 246 len += scnprintf(buf + len, size - len, " HT MCS %s\n", 247 str[j]); 248 for (i = 0; i < ATH11K_HT_MCS_NUM; i++) 249 len += scnprintf(buf + len, size - len, 250 " %llu ", stats->ht[j][i]); 251 len += scnprintf(buf + len, size - len, "\n"); 252 len += scnprintf(buf + len, size - len, 253 " BW %s (20,40,80,160 MHz)\n", str[j]); 254 len += scnprintf(buf + len, size - len, 255 " %llu %llu %llu %llu\n", 256 stats->bw[j][0], stats->bw[j][1], 257 stats->bw[j][2], stats->bw[j][3]); 258 len += scnprintf(buf + len, size - len, 259 " NSS %s (1x1,2x2,3x3,4x4)\n", str[j]); 260 len += scnprintf(buf + len, size - len, 261 " %llu %llu %llu %llu\n", 262 stats->nss[j][0], stats->nss[j][1], 263 stats->nss[j][2], stats->nss[j][3]); 264 len += scnprintf(buf + len, size - len, 265 " GI %s (0.4us,0.8us,1.6us,3.2us)\n", 266 str[j]); 267 len += scnprintf(buf + len, size - len, 268 " %llu %llu %llu %llu\n", 269 stats->gi[j][0], stats->gi[j][1], 270 stats->gi[j][2], stats->gi[j][3]); 271 len += scnprintf(buf + len, size - len, 272 " legacy rate %s (1,2 ... Mbps)\n ", 273 str[j]); 274 for (i = 0; i < ATH11K_LEGACY_NUM; i++) 275 len += scnprintf(buf + len, size - len, "%llu ", 276 stats->legacy[j][i]); 277 len += scnprintf(buf + len, size - len, "\n"); 278 } 279 } 280 281 len += scnprintf(buf + len, size - len, 282 "\nTX duration\n %llu usecs\n", 283 arsta->tx_stats->tx_duration); 284 len += scnprintf(buf + len, size - len, 285 "BA fails\n %llu\n", arsta->tx_stats->ba_fails); 286 len += scnprintf(buf + len, size - len, 287 "ack fails\n %llu\n", arsta->tx_stats->ack_fails); 288 spin_unlock_bh(&ar->data_lock); 289 290 if (len > size) 291 len = size; 292 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 293 kfree(buf); 294 295 mutex_unlock(&ar->conf_mutex); 296 return retval; 297 } 298 299 static const struct file_operations fops_tx_stats = { 300 .read = ath11k_dbg_sta_dump_tx_stats, 301 .open = simple_open, 302 .owner = THIS_MODULE, 303 .llseek = default_llseek, 304 }; 305 306 static ssize_t ath11k_dbg_sta_dump_rx_stats(struct file *file, 307 char __user *user_buf, 308 size_t count, loff_t *ppos) 309 { 310 struct ieee80211_sta *sta = file->private_data; 311 struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv; 312 struct ath11k *ar = arsta->arvif->ar; 313 struct ath11k_rx_peer_stats *rx_stats = arsta->rx_stats; 314 int len = 0, i, retval = 0; 315 const int size = 4096; 316 char *buf; 317 318 if (!rx_stats) 319 return -ENOENT; 320 321 buf = kzalloc(size, GFP_KERNEL); 322 if (!buf) 323 return -ENOMEM; 324 325 mutex_lock(&ar->conf_mutex); 326 spin_lock_bh(&ar->ab->base_lock); 327 328 len += scnprintf(buf + len, size - len, "RX peer stats:\n"); 329 len += scnprintf(buf + len, size - len, "Num of MSDUs: %llu\n", 330 rx_stats->num_msdu); 331 len += scnprintf(buf + len, size - len, "Num of MSDUs with TCP L4: %llu\n", 332 rx_stats->tcp_msdu_count); 333 len += scnprintf(buf + len, size - len, "Num of MSDUs with UDP L4: %llu\n", 334 rx_stats->udp_msdu_count); 335 len += scnprintf(buf + len, size - len, "Num of MSDUs part of AMPDU: %llu\n", 336 rx_stats->ampdu_msdu_count); 337 len += scnprintf(buf + len, size - len, "Num of MSDUs not part of AMPDU: %llu\n", 338 rx_stats->non_ampdu_msdu_count); 339 len += scnprintf(buf + len, size - len, "Num of MSDUs using STBC: %llu\n", 340 rx_stats->stbc_count); 341 len += scnprintf(buf + len, size - len, "Num of MSDUs beamformed: %llu\n", 342 rx_stats->beamformed_count); 343 len += scnprintf(buf + len, size - len, "Num of MPDUs with FCS ok: %llu\n", 344 rx_stats->num_mpdu_fcs_ok); 345 len += scnprintf(buf + len, size - len, "Num of MPDUs with FCS error: %llu\n", 346 rx_stats->num_mpdu_fcs_err); 347 len += scnprintf(buf + len, size - len, 348 "GI: 0.8us %llu 0.4us %llu 1.6us %llu 3.2us %llu\n", 349 rx_stats->gi_count[0], rx_stats->gi_count[1], 350 rx_stats->gi_count[2], rx_stats->gi_count[3]); 351 len += scnprintf(buf + len, size - len, 352 "BW: 20Mhz %llu 40Mhz %llu 80Mhz %llu 160Mhz %llu\n", 353 rx_stats->bw_count[0], rx_stats->bw_count[1], 354 rx_stats->bw_count[2], rx_stats->bw_count[3]); 355 len += scnprintf(buf + len, size - len, "BCC %llu LDPC %llu\n", 356 rx_stats->coding_count[0], rx_stats->coding_count[1]); 357 len += scnprintf(buf + len, size - len, 358 "preamble: 11A %llu 11B %llu 11N %llu 11AC %llu 11AX %llu\n", 359 rx_stats->pream_cnt[0], rx_stats->pream_cnt[1], 360 rx_stats->pream_cnt[2], rx_stats->pream_cnt[3], 361 rx_stats->pream_cnt[4]); 362 len += scnprintf(buf + len, size - len, 363 "reception type: SU %llu MU_MIMO %llu MU_OFDMA %llu MU_OFDMA_MIMO %llu\n", 364 rx_stats->reception_type[0], rx_stats->reception_type[1], 365 rx_stats->reception_type[2], rx_stats->reception_type[3]); 366 len += scnprintf(buf + len, size - len, "TID(0-15) Legacy TID(16):"); 367 for (i = 0; i <= IEEE80211_NUM_TIDS; i++) 368 len += scnprintf(buf + len, size - len, "%llu ", rx_stats->tid_count[i]); 369 len += scnprintf(buf + len, size - len, "\nMCS(0-11) Legacy MCS(12):"); 370 for (i = 0; i < HAL_RX_MAX_MCS + 1; i++) 371 len += scnprintf(buf + len, size - len, "%llu ", rx_stats->mcs_count[i]); 372 len += scnprintf(buf + len, size - len, "\nNSS(1-8):"); 373 for (i = 0; i < HAL_RX_MAX_NSS; i++) 374 len += scnprintf(buf + len, size - len, "%llu ", rx_stats->nss_count[i]); 375 len += scnprintf(buf + len, size - len, "\nRX Duration:%llu ", 376 rx_stats->rx_duration); 377 len += scnprintf(buf + len, size - len, "\n"); 378 379 spin_unlock_bh(&ar->ab->base_lock); 380 381 if (len > size) 382 len = size; 383 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 384 kfree(buf); 385 386 mutex_unlock(&ar->conf_mutex); 387 return retval; 388 } 389 390 static const struct file_operations fops_rx_stats = { 391 .read = ath11k_dbg_sta_dump_rx_stats, 392 .open = simple_open, 393 .owner = THIS_MODULE, 394 .llseek = default_llseek, 395 }; 396 397 static int 398 ath11k_dbg_sta_open_htt_peer_stats(struct inode *inode, struct file *file) 399 { 400 struct ieee80211_sta *sta = inode->i_private; 401 struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv; 402 struct ath11k *ar = arsta->arvif->ar; 403 struct debug_htt_stats_req *stats_req; 404 int ret; 405 406 stats_req = vzalloc(sizeof(*stats_req) + ATH11K_HTT_STATS_BUF_SIZE); 407 if (!stats_req) 408 return -ENOMEM; 409 410 mutex_lock(&ar->conf_mutex); 411 ar->debug.htt_stats.stats_req = stats_req; 412 stats_req->type = ATH11K_DBG_HTT_EXT_STATS_PEER_INFO; 413 memcpy(stats_req->peer_addr, sta->addr, ETH_ALEN); 414 ret = ath11k_dbg_htt_stats_req(ar); 415 mutex_unlock(&ar->conf_mutex); 416 if (ret < 0) 417 goto out; 418 419 file->private_data = stats_req; 420 return 0; 421 out: 422 vfree(stats_req); 423 return ret; 424 } 425 426 static int 427 ath11k_dbg_sta_release_htt_peer_stats(struct inode *inode, struct file *file) 428 { 429 vfree(file->private_data); 430 return 0; 431 } 432 433 static ssize_t ath11k_dbg_sta_read_htt_peer_stats(struct file *file, 434 char __user *user_buf, 435 size_t count, loff_t *ppos) 436 { 437 struct debug_htt_stats_req *stats_req = file->private_data; 438 char *buf; 439 u32 length = 0; 440 441 buf = stats_req->buf; 442 length = min_t(u32, stats_req->buf_len, ATH11K_HTT_STATS_BUF_SIZE); 443 return simple_read_from_buffer(user_buf, count, ppos, buf, length); 444 } 445 446 static const struct file_operations fops_htt_peer_stats = { 447 .open = ath11k_dbg_sta_open_htt_peer_stats, 448 .release = ath11k_dbg_sta_release_htt_peer_stats, 449 .read = ath11k_dbg_sta_read_htt_peer_stats, 450 .owner = THIS_MODULE, 451 .llseek = default_llseek, 452 }; 453 454 static ssize_t ath11k_dbg_sta_write_peer_pktlog(struct file *file, 455 const char __user *buf, 456 size_t count, loff_t *ppos) 457 { 458 struct ieee80211_sta *sta = file->private_data; 459 struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv; 460 struct ath11k *ar = arsta->arvif->ar; 461 int ret, enable; 462 463 mutex_lock(&ar->conf_mutex); 464 465 if (ar->state != ATH11K_STATE_ON) { 466 ret = -ENETDOWN; 467 goto out; 468 } 469 470 ret = kstrtoint_from_user(buf, count, 0, &enable); 471 if (ret) 472 goto out; 473 474 ar->debug.pktlog_peer_valid = enable; 475 memcpy(ar->debug.pktlog_peer_addr, sta->addr, ETH_ALEN); 476 477 /* Send peer based pktlog enable/disable */ 478 ret = ath11k_wmi_pdev_peer_pktlog_filter(ar, sta->addr, enable); 479 if (ret) { 480 ath11k_warn(ar->ab, "failed to set peer pktlog filter %pM: %d\n", 481 sta->addr, ret); 482 goto out; 483 } 484 485 ath11k_dbg(ar->ab, ATH11K_DBG_WMI, "peer pktlog filter set to %d\n", 486 enable); 487 ret = count; 488 489 out: 490 mutex_unlock(&ar->conf_mutex); 491 return ret; 492 } 493 494 static ssize_t ath11k_dbg_sta_read_peer_pktlog(struct file *file, 495 char __user *ubuf, 496 size_t count, loff_t *ppos) 497 { 498 struct ieee80211_sta *sta = file->private_data; 499 struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv; 500 struct ath11k *ar = arsta->arvif->ar; 501 char buf[32] = {0}; 502 int len; 503 504 mutex_lock(&ar->conf_mutex); 505 len = scnprintf(buf, sizeof(buf), "%08x %pM\n", 506 ar->debug.pktlog_peer_valid, 507 ar->debug.pktlog_peer_addr); 508 mutex_unlock(&ar->conf_mutex); 509 510 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 511 } 512 513 static const struct file_operations fops_peer_pktlog = { 514 .write = ath11k_dbg_sta_write_peer_pktlog, 515 .read = ath11k_dbg_sta_read_peer_pktlog, 516 .open = simple_open, 517 .owner = THIS_MODULE, 518 .llseek = default_llseek, 519 }; 520 521 void ath11k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 522 struct ieee80211_sta *sta, struct dentry *dir) 523 { 524 struct ath11k *ar = hw->priv; 525 526 if (ath11k_debug_is_extd_tx_stats_enabled(ar)) 527 debugfs_create_file("tx_stats", 0400, dir, sta, 528 &fops_tx_stats); 529 if (ath11k_debug_is_extd_rx_stats_enabled(ar)) 530 debugfs_create_file("rx_stats", 0400, dir, sta, 531 &fops_rx_stats); 532 533 debugfs_create_file("htt_peer_stats", 0400, dir, sta, 534 &fops_htt_peer_stats); 535 536 debugfs_create_file("peer_pktlog", 0644, dir, sta, 537 &fops_peer_pktlog); 538 } 539