fe0ebb5160
Before dumping tx_stats proper validation was not been taken care of. Due to which we were encountering null pointer dereference(kernel panic). This scenario will arise when a station is getting disconnected and we are changing the STA state by ath11k_mac_op_sta_state and assigning tx_stats as NULL and after this the mac80211 will destroy the debugfs entry from where we are trying to read the stats. If anyone tries to dump tx_stats for that STA in between setting tx_stats to NULL and debugfs file removal without checking the NULL value it will run into a NULL pointer exception. Proceeding with the analysis of "ARM Kernel Panic". The APSS crash happened due to OOPS on CPU 3. Crash Signature : Unable to handle kernel NULL pointer dereference at virtual address 00000360 During the crash, PC points to "ath11k_debug_htt_stats_init+0x16ac/0x1acc [ath11k]" LR points to "ath11k_debug_htt_stats_init+0x1688/0x1acc [ath11k]". The Backtrace obtained is as follows: [<ffffffbffcfd8590>] ath11k_debug_htt_stats_init+0x16ac/0x1acc [ath11k] [<ffffffc000156320>] do_loop_readv_writev+0x60/0xa4 [<ffffffc000156a5c>] do_readv_writev+0xd8/0x19c [<ffffffc000156b54>] vfs_readv+0x34/0x48 [<ffffffc00017d6f4>] default_file_splice_read+0x1a8/0x2e4 [<ffffffc00017c56c>] do_splice_to+0x78/0x98 [<ffffffc00017c63c>] splice_direct_to_actor+0xb0/0x1a4 [<ffffffc00017c7b4>] do_splice_direct+0x84/0xa8 [<ffffffc000156f40>] do_sendfile+0x160/0x2a4 [<ffffffc000157980>] SyS_sendfile64+0xb4/0xc8 Signed-off-by: Pravas Kumar Panda <kumarpan@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
553 lines
18 KiB
C
553 lines
18 KiB
C
// SPDX-License-Identifier: BSD-3-Clause-Clear
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/*
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* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
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*/
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#include <linux/vmalloc.h>
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#include "core.h"
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#include "peer.h"
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#include "debug.h"
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void
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ath11k_accumulate_per_peer_tx_stats(struct ath11k_sta *arsta,
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struct ath11k_per_peer_tx_stats *peer_stats,
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u8 legacy_rate_idx)
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{
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struct rate_info *txrate = &arsta->txrate;
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struct ath11k_htt_tx_stats *tx_stats;
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int gi, mcs, bw, nss;
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if (!arsta->tx_stats)
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return;
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tx_stats = arsta->tx_stats;
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gi = FIELD_GET(RATE_INFO_FLAGS_SHORT_GI, arsta->txrate.flags);
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mcs = txrate->mcs;
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bw = ath11k_mac_mac80211_bw_to_ath11k_bw(txrate->bw);
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nss = txrate->nss - 1;
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#define STATS_OP_FMT(name) tx_stats->stats[ATH11K_STATS_TYPE_##name]
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if (txrate->flags & RATE_INFO_FLAGS_HE_MCS) {
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STATS_OP_FMT(SUCC).he[0][mcs] += peer_stats->succ_bytes;
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STATS_OP_FMT(SUCC).he[1][mcs] += peer_stats->succ_pkts;
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STATS_OP_FMT(FAIL).he[0][mcs] += peer_stats->failed_bytes;
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STATS_OP_FMT(FAIL).he[1][mcs] += peer_stats->failed_pkts;
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STATS_OP_FMT(RETRY).he[0][mcs] += peer_stats->retry_bytes;
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STATS_OP_FMT(RETRY).he[1][mcs] += peer_stats->retry_pkts;
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} else if (txrate->flags & RATE_INFO_FLAGS_VHT_MCS) {
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STATS_OP_FMT(SUCC).vht[0][mcs] += peer_stats->succ_bytes;
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STATS_OP_FMT(SUCC).vht[1][mcs] += peer_stats->succ_pkts;
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STATS_OP_FMT(FAIL).vht[0][mcs] += peer_stats->failed_bytes;
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STATS_OP_FMT(FAIL).vht[1][mcs] += peer_stats->failed_pkts;
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STATS_OP_FMT(RETRY).vht[0][mcs] += peer_stats->retry_bytes;
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STATS_OP_FMT(RETRY).vht[1][mcs] += peer_stats->retry_pkts;
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} else if (txrate->flags & RATE_INFO_FLAGS_MCS) {
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STATS_OP_FMT(SUCC).ht[0][mcs] += peer_stats->succ_bytes;
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STATS_OP_FMT(SUCC).ht[1][mcs] += peer_stats->succ_pkts;
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STATS_OP_FMT(FAIL).ht[0][mcs] += peer_stats->failed_bytes;
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STATS_OP_FMT(FAIL).ht[1][mcs] += peer_stats->failed_pkts;
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STATS_OP_FMT(RETRY).ht[0][mcs] += peer_stats->retry_bytes;
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STATS_OP_FMT(RETRY).ht[1][mcs] += peer_stats->retry_pkts;
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} else {
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mcs = legacy_rate_idx;
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STATS_OP_FMT(SUCC).legacy[0][mcs] += peer_stats->succ_bytes;
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STATS_OP_FMT(SUCC).legacy[1][mcs] += peer_stats->succ_pkts;
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STATS_OP_FMT(FAIL).legacy[0][mcs] += peer_stats->failed_bytes;
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STATS_OP_FMT(FAIL).legacy[1][mcs] += peer_stats->failed_pkts;
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STATS_OP_FMT(RETRY).legacy[0][mcs] += peer_stats->retry_bytes;
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STATS_OP_FMT(RETRY).legacy[1][mcs] += peer_stats->retry_pkts;
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}
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if (peer_stats->is_ampdu) {
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tx_stats->ba_fails += peer_stats->ba_fails;
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if (txrate->flags & RATE_INFO_FLAGS_HE_MCS) {
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STATS_OP_FMT(AMPDU).he[0][mcs] +=
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peer_stats->succ_bytes + peer_stats->retry_bytes;
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STATS_OP_FMT(AMPDU).he[1][mcs] +=
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peer_stats->succ_pkts + peer_stats->retry_pkts;
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} else if (txrate->flags & RATE_INFO_FLAGS_MCS) {
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STATS_OP_FMT(AMPDU).ht[0][mcs] +=
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peer_stats->succ_bytes + peer_stats->retry_bytes;
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STATS_OP_FMT(AMPDU).ht[1][mcs] +=
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peer_stats->succ_pkts + peer_stats->retry_pkts;
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} else {
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STATS_OP_FMT(AMPDU).vht[0][mcs] +=
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peer_stats->succ_bytes + peer_stats->retry_bytes;
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STATS_OP_FMT(AMPDU).vht[1][mcs] +=
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peer_stats->succ_pkts + peer_stats->retry_pkts;
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}
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STATS_OP_FMT(AMPDU).bw[0][bw] +=
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peer_stats->succ_bytes + peer_stats->retry_bytes;
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STATS_OP_FMT(AMPDU).nss[0][nss] +=
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peer_stats->succ_bytes + peer_stats->retry_bytes;
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STATS_OP_FMT(AMPDU).gi[0][gi] +=
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peer_stats->succ_bytes + peer_stats->retry_bytes;
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STATS_OP_FMT(AMPDU).bw[1][bw] +=
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peer_stats->succ_pkts + peer_stats->retry_pkts;
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STATS_OP_FMT(AMPDU).nss[1][nss] +=
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peer_stats->succ_pkts + peer_stats->retry_pkts;
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STATS_OP_FMT(AMPDU).gi[1][gi] +=
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peer_stats->succ_pkts + peer_stats->retry_pkts;
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} else {
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tx_stats->ack_fails += peer_stats->ba_fails;
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}
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STATS_OP_FMT(SUCC).bw[0][bw] += peer_stats->succ_bytes;
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STATS_OP_FMT(SUCC).nss[0][nss] += peer_stats->succ_bytes;
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STATS_OP_FMT(SUCC).gi[0][gi] += peer_stats->succ_bytes;
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STATS_OP_FMT(SUCC).bw[1][bw] += peer_stats->succ_pkts;
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STATS_OP_FMT(SUCC).nss[1][nss] += peer_stats->succ_pkts;
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STATS_OP_FMT(SUCC).gi[1][gi] += peer_stats->succ_pkts;
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STATS_OP_FMT(FAIL).bw[0][bw] += peer_stats->failed_bytes;
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STATS_OP_FMT(FAIL).nss[0][nss] += peer_stats->failed_bytes;
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STATS_OP_FMT(FAIL).gi[0][gi] += peer_stats->failed_bytes;
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STATS_OP_FMT(FAIL).bw[1][bw] += peer_stats->failed_pkts;
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STATS_OP_FMT(FAIL).nss[1][nss] += peer_stats->failed_pkts;
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STATS_OP_FMT(FAIL).gi[1][gi] += peer_stats->failed_pkts;
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STATS_OP_FMT(RETRY).bw[0][bw] += peer_stats->retry_bytes;
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STATS_OP_FMT(RETRY).nss[0][nss] += peer_stats->retry_bytes;
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STATS_OP_FMT(RETRY).gi[0][gi] += peer_stats->retry_bytes;
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STATS_OP_FMT(RETRY).bw[1][bw] += peer_stats->retry_pkts;
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STATS_OP_FMT(RETRY).nss[1][nss] += peer_stats->retry_pkts;
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STATS_OP_FMT(RETRY).gi[1][gi] += peer_stats->retry_pkts;
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tx_stats->tx_duration += peer_stats->duration;
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}
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void ath11k_update_per_peer_stats_from_txcompl(struct ath11k *ar,
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struct sk_buff *msdu,
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struct hal_tx_status *ts)
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{
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struct ath11k_base *ab = ar->ab;
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struct ath11k_per_peer_tx_stats *peer_stats = &ar->cached_stats;
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enum hal_tx_rate_stats_pkt_type pkt_type;
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enum hal_tx_rate_stats_sgi sgi;
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enum hal_tx_rate_stats_bw bw;
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struct ath11k_peer *peer;
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struct ath11k_sta *arsta;
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struct ieee80211_sta *sta;
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u16 rate;
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u8 rate_idx = 0;
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int ret;
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u8 mcs;
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rcu_read_lock();
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spin_lock_bh(&ab->base_lock);
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peer = ath11k_peer_find_by_id(ab, ts->peer_id);
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if (!peer || !peer->sta) {
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ath11k_warn(ab, "failed to find the peer\n");
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spin_unlock_bh(&ab->base_lock);
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rcu_read_unlock();
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return;
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}
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sta = peer->sta;
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arsta = (struct ath11k_sta *)sta->drv_priv;
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memset(&arsta->txrate, 0, sizeof(arsta->txrate));
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pkt_type = FIELD_GET(HAL_TX_RATE_STATS_INFO0_PKT_TYPE,
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ts->rate_stats);
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mcs = FIELD_GET(HAL_TX_RATE_STATS_INFO0_MCS,
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ts->rate_stats);
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sgi = FIELD_GET(HAL_TX_RATE_STATS_INFO0_SGI,
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ts->rate_stats);
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bw = FIELD_GET(HAL_TX_RATE_STATS_INFO0_BW, ts->rate_stats);
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if (pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11A ||
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pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11B) {
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ret = ath11k_mac_hw_ratecode_to_legacy_rate(mcs,
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pkt_type,
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&rate_idx,
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&rate);
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if (ret < 0)
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goto err_out;
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arsta->txrate.legacy = rate;
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} else if (pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11N) {
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if (mcs > 7) {
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ath11k_warn(ab, "Invalid HT mcs index %d\n", mcs);
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goto err_out;
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}
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arsta->txrate.mcs = mcs + 8 * (arsta->last_txrate.nss - 1);
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arsta->txrate.flags = RATE_INFO_FLAGS_MCS;
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if (sgi)
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arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
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} else if (pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11AC) {
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if (mcs > 9) {
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ath11k_warn(ab, "Invalid VHT mcs index %d\n", mcs);
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goto err_out;
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}
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arsta->txrate.mcs = mcs;
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arsta->txrate.flags = RATE_INFO_FLAGS_VHT_MCS;
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if (sgi)
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arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
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} else if (pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11AX) {
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/* TODO */
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}
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arsta->txrate.nss = arsta->last_txrate.nss;
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arsta->txrate.bw = ath11k_mac_bw_to_mac80211_bw(bw);
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ath11k_accumulate_per_peer_tx_stats(arsta, peer_stats, rate_idx);
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err_out:
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spin_unlock_bh(&ab->base_lock);
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rcu_read_unlock();
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}
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static ssize_t ath11k_dbg_sta_dump_tx_stats(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ieee80211_sta *sta = file->private_data;
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struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
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struct ath11k *ar = arsta->arvif->ar;
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struct ath11k_htt_data_stats *stats;
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static const char *str_name[ATH11K_STATS_TYPE_MAX] = {"succ", "fail",
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"retry", "ampdu"};
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static const char *str[ATH11K_COUNTER_TYPE_MAX] = {"bytes", "packets"};
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int len = 0, i, j, k, retval = 0;
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const int size = 2 * 4096;
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char *buf;
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if (!arsta->tx_stats)
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return -ENOENT;
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buf = kzalloc(size, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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mutex_lock(&ar->conf_mutex);
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spin_lock_bh(&ar->data_lock);
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for (k = 0; k < ATH11K_STATS_TYPE_MAX; k++) {
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for (j = 0; j < ATH11K_COUNTER_TYPE_MAX; j++) {
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stats = &arsta->tx_stats->stats[k];
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len += scnprintf(buf + len, size - len, "%s_%s\n",
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str_name[k],
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str[j]);
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len += scnprintf(buf + len, size - len,
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" HE MCS %s\n",
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str[j]);
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for (i = 0; i < ATH11K_HE_MCS_NUM; i++)
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len += scnprintf(buf + len, size - len,
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" %llu ",
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stats->he[j][i]);
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len += scnprintf(buf + len, size - len, "\n");
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len += scnprintf(buf + len, size - len,
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" VHT MCS %s\n",
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str[j]);
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for (i = 0; i < ATH11K_VHT_MCS_NUM; i++)
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len += scnprintf(buf + len, size - len,
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" %llu ",
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stats->vht[j][i]);
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len += scnprintf(buf + len, size - len, "\n");
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len += scnprintf(buf + len, size - len, " HT MCS %s\n",
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str[j]);
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for (i = 0; i < ATH11K_HT_MCS_NUM; i++)
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len += scnprintf(buf + len, size - len,
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" %llu ", stats->ht[j][i]);
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len += scnprintf(buf + len, size - len, "\n");
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len += scnprintf(buf + len, size - len,
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" BW %s (20,40,80,160 MHz)\n", str[j]);
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len += scnprintf(buf + len, size - len,
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" %llu %llu %llu %llu\n",
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stats->bw[j][0], stats->bw[j][1],
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stats->bw[j][2], stats->bw[j][3]);
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len += scnprintf(buf + len, size - len,
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" NSS %s (1x1,2x2,3x3,4x4)\n", str[j]);
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len += scnprintf(buf + len, size - len,
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" %llu %llu %llu %llu\n",
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stats->nss[j][0], stats->nss[j][1],
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stats->nss[j][2], stats->nss[j][3]);
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len += scnprintf(buf + len, size - len,
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" GI %s (0.4us,0.8us,1.6us,3.2us)\n",
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str[j]);
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len += scnprintf(buf + len, size - len,
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" %llu %llu %llu %llu\n",
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stats->gi[j][0], stats->gi[j][1],
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stats->gi[j][2], stats->gi[j][3]);
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len += scnprintf(buf + len, size - len,
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" legacy rate %s (1,2 ... Mbps)\n ",
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str[j]);
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for (i = 0; i < ATH11K_LEGACY_NUM; i++)
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len += scnprintf(buf + len, size - len, "%llu ",
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stats->legacy[j][i]);
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len += scnprintf(buf + len, size - len, "\n");
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}
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}
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len += scnprintf(buf + len, size - len,
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"\nTX duration\n %llu usecs\n",
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arsta->tx_stats->tx_duration);
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len += scnprintf(buf + len, size - len,
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"BA fails\n %llu\n", arsta->tx_stats->ba_fails);
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len += scnprintf(buf + len, size - len,
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"ack fails\n %llu\n", arsta->tx_stats->ack_fails);
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spin_unlock_bh(&ar->data_lock);
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if (len > size)
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len = size;
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retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
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kfree(buf);
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mutex_unlock(&ar->conf_mutex);
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return retval;
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}
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static const struct file_operations fops_tx_stats = {
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.read = ath11k_dbg_sta_dump_tx_stats,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t ath11k_dbg_sta_dump_rx_stats(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ieee80211_sta *sta = file->private_data;
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struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
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struct ath11k *ar = arsta->arvif->ar;
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struct ath11k_rx_peer_stats *rx_stats = arsta->rx_stats;
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int len = 0, i, retval = 0;
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const int size = 4096;
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char *buf;
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if (!rx_stats)
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return -ENOENT;
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buf = kzalloc(size, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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mutex_lock(&ar->conf_mutex);
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spin_lock_bh(&ar->ab->base_lock);
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len += scnprintf(buf + len, size - len, "RX peer stats:\n");
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len += scnprintf(buf + len, size - len, "Num of MSDUs: %llu\n",
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rx_stats->num_msdu);
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len += scnprintf(buf + len, size - len, "Num of MSDUs with TCP L4: %llu\n",
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rx_stats->tcp_msdu_count);
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len += scnprintf(buf + len, size - len, "Num of MSDUs with UDP L4: %llu\n",
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rx_stats->udp_msdu_count);
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len += scnprintf(buf + len, size - len, "Num of MSDUs part of AMPDU: %llu\n",
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rx_stats->ampdu_msdu_count);
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len += scnprintf(buf + len, size - len, "Num of MSDUs not part of AMPDU: %llu\n",
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rx_stats->non_ampdu_msdu_count);
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len += scnprintf(buf + len, size - len, "Num of MSDUs using STBC: %llu\n",
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rx_stats->stbc_count);
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len += scnprintf(buf + len, size - len, "Num of MSDUs beamformed: %llu\n",
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rx_stats->beamformed_count);
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len += scnprintf(buf + len, size - len, "Num of MPDUs with FCS ok: %llu\n",
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rx_stats->num_mpdu_fcs_ok);
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len += scnprintf(buf + len, size - len, "Num of MPDUs with FCS error: %llu\n",
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rx_stats->num_mpdu_fcs_err);
|
|
len += scnprintf(buf + len, size - len,
|
|
"GI: 0.8us %llu 0.4us %llu 1.6us %llu 3.2us %llu\n",
|
|
rx_stats->gi_count[0], rx_stats->gi_count[1],
|
|
rx_stats->gi_count[2], rx_stats->gi_count[3]);
|
|
len += scnprintf(buf + len, size - len,
|
|
"BW: 20Mhz %llu 40Mhz %llu 80Mhz %llu 160Mhz %llu\n",
|
|
rx_stats->bw_count[0], rx_stats->bw_count[1],
|
|
rx_stats->bw_count[2], rx_stats->bw_count[3]);
|
|
len += scnprintf(buf + len, size - len, "BCC %llu LDPC %llu\n",
|
|
rx_stats->coding_count[0], rx_stats->coding_count[1]);
|
|
len += scnprintf(buf + len, size - len,
|
|
"preamble: 11A %llu 11B %llu 11N %llu 11AC %llu 11AX %llu\n",
|
|
rx_stats->pream_cnt[0], rx_stats->pream_cnt[1],
|
|
rx_stats->pream_cnt[2], rx_stats->pream_cnt[3],
|
|
rx_stats->pream_cnt[4]);
|
|
len += scnprintf(buf + len, size - len,
|
|
"reception type: SU %llu MU_MIMO %llu MU_OFDMA %llu MU_OFDMA_MIMO %llu\n",
|
|
rx_stats->reception_type[0], rx_stats->reception_type[1],
|
|
rx_stats->reception_type[2], rx_stats->reception_type[3]);
|
|
len += scnprintf(buf + len, size - len, "TID(0-15) Legacy TID(16):");
|
|
for (i = 0; i <= IEEE80211_NUM_TIDS; i++)
|
|
len += scnprintf(buf + len, size - len, "%llu ", rx_stats->tid_count[i]);
|
|
len += scnprintf(buf + len, size - len, "\nMCS(0-11) Legacy MCS(12):");
|
|
for (i = 0; i < HAL_RX_MAX_MCS + 1; i++)
|
|
len += scnprintf(buf + len, size - len, "%llu ", rx_stats->mcs_count[i]);
|
|
len += scnprintf(buf + len, size - len, "\nNSS(1-8):");
|
|
for (i = 0; i < HAL_RX_MAX_NSS; i++)
|
|
len += scnprintf(buf + len, size - len, "%llu ", rx_stats->nss_count[i]);
|
|
len += scnprintf(buf + len, size - len, "\nRX Duration:%llu ",
|
|
rx_stats->rx_duration);
|
|
len += scnprintf(buf + len, size - len,
|
|
"\nDCM: %llu\nRU: 26 %llu 52: %llu 106: %llu 242: %llu 484: %llu 996: %llu\n",
|
|
rx_stats->dcm_count, rx_stats->ru_alloc_cnt[0],
|
|
rx_stats->ru_alloc_cnt[1], rx_stats->ru_alloc_cnt[2],
|
|
rx_stats->ru_alloc_cnt[3], rx_stats->ru_alloc_cnt[4],
|
|
rx_stats->ru_alloc_cnt[5]);
|
|
|
|
len += scnprintf(buf + len, size - len, "\n");
|
|
|
|
spin_unlock_bh(&ar->ab->base_lock);
|
|
|
|
if (len > size)
|
|
len = size;
|
|
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
kfree(buf);
|
|
|
|
mutex_unlock(&ar->conf_mutex);
|
|
return retval;
|
|
}
|
|
|
|
static const struct file_operations fops_rx_stats = {
|
|
.read = ath11k_dbg_sta_dump_rx_stats,
|
|
.open = simple_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static int
|
|
ath11k_dbg_sta_open_htt_peer_stats(struct inode *inode, struct file *file)
|
|
{
|
|
struct ieee80211_sta *sta = inode->i_private;
|
|
struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
|
|
struct ath11k *ar = arsta->arvif->ar;
|
|
struct debug_htt_stats_req *stats_req;
|
|
int ret;
|
|
|
|
stats_req = vzalloc(sizeof(*stats_req) + ATH11K_HTT_STATS_BUF_SIZE);
|
|
if (!stats_req)
|
|
return -ENOMEM;
|
|
|
|
mutex_lock(&ar->conf_mutex);
|
|
ar->debug.htt_stats.stats_req = stats_req;
|
|
stats_req->type = ATH11K_DBG_HTT_EXT_STATS_PEER_INFO;
|
|
memcpy(stats_req->peer_addr, sta->addr, ETH_ALEN);
|
|
ret = ath11k_dbg_htt_stats_req(ar);
|
|
mutex_unlock(&ar->conf_mutex);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
file->private_data = stats_req;
|
|
return 0;
|
|
out:
|
|
vfree(stats_req);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
ath11k_dbg_sta_release_htt_peer_stats(struct inode *inode, struct file *file)
|
|
{
|
|
vfree(file->private_data);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t ath11k_dbg_sta_read_htt_peer_stats(struct file *file,
|
|
char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct debug_htt_stats_req *stats_req = file->private_data;
|
|
char *buf;
|
|
u32 length = 0;
|
|
|
|
buf = stats_req->buf;
|
|
length = min_t(u32, stats_req->buf_len, ATH11K_HTT_STATS_BUF_SIZE);
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, length);
|
|
}
|
|
|
|
static const struct file_operations fops_htt_peer_stats = {
|
|
.open = ath11k_dbg_sta_open_htt_peer_stats,
|
|
.release = ath11k_dbg_sta_release_htt_peer_stats,
|
|
.read = ath11k_dbg_sta_read_htt_peer_stats,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t ath11k_dbg_sta_write_peer_pktlog(struct file *file,
|
|
const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ieee80211_sta *sta = file->private_data;
|
|
struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
|
|
struct ath11k *ar = arsta->arvif->ar;
|
|
int ret, enable;
|
|
|
|
mutex_lock(&ar->conf_mutex);
|
|
|
|
if (ar->state != ATH11K_STATE_ON) {
|
|
ret = -ENETDOWN;
|
|
goto out;
|
|
}
|
|
|
|
ret = kstrtoint_from_user(buf, count, 0, &enable);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ar->debug.pktlog_peer_valid = enable;
|
|
memcpy(ar->debug.pktlog_peer_addr, sta->addr, ETH_ALEN);
|
|
|
|
/* Send peer based pktlog enable/disable */
|
|
ret = ath11k_wmi_pdev_peer_pktlog_filter(ar, sta->addr, enable);
|
|
if (ret) {
|
|
ath11k_warn(ar->ab, "failed to set peer pktlog filter %pM: %d\n",
|
|
sta->addr, ret);
|
|
goto out;
|
|
}
|
|
|
|
ath11k_dbg(ar->ab, ATH11K_DBG_WMI, "peer pktlog filter set to %d\n",
|
|
enable);
|
|
ret = count;
|
|
|
|
out:
|
|
mutex_unlock(&ar->conf_mutex);
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t ath11k_dbg_sta_read_peer_pktlog(struct file *file,
|
|
char __user *ubuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ieee80211_sta *sta = file->private_data;
|
|
struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
|
|
struct ath11k *ar = arsta->arvif->ar;
|
|
char buf[32] = {0};
|
|
int len;
|
|
|
|
mutex_lock(&ar->conf_mutex);
|
|
len = scnprintf(buf, sizeof(buf), "%08x %pM\n",
|
|
ar->debug.pktlog_peer_valid,
|
|
ar->debug.pktlog_peer_addr);
|
|
mutex_unlock(&ar->conf_mutex);
|
|
|
|
return simple_read_from_buffer(ubuf, count, ppos, buf, len);
|
|
}
|
|
|
|
static const struct file_operations fops_peer_pktlog = {
|
|
.write = ath11k_dbg_sta_write_peer_pktlog,
|
|
.read = ath11k_dbg_sta_read_peer_pktlog,
|
|
.open = simple_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
void ath11k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta, struct dentry *dir)
|
|
{
|
|
struct ath11k *ar = hw->priv;
|
|
|
|
if (ath11k_debug_is_extd_tx_stats_enabled(ar))
|
|
debugfs_create_file("tx_stats", 0400, dir, sta,
|
|
&fops_tx_stats);
|
|
if (ath11k_debug_is_extd_rx_stats_enabled(ar))
|
|
debugfs_create_file("rx_stats", 0400, dir, sta,
|
|
&fops_rx_stats);
|
|
|
|
debugfs_create_file("htt_peer_stats", 0400, dir, sta,
|
|
&fops_htt_peer_stats);
|
|
|
|
debugfs_create_file("peer_pktlog", 0644, dir, sta,
|
|
&fops_peer_pktlog);
|
|
}
|