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389 lines
11 KiB
389 lines
11 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers |
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* DebugFS code |
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* |
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* Copyright (c) 2010, ST-Ericsson |
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* Author: Dmitry Tarnyagin <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/debugfs.h> |
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#include <linux/seq_file.h> |
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#include "cw1200.h" |
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#include "debug.h" |
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#include "fwio.h" |
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/* join_status */ |
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static const char * const cw1200_debug_join_status[] = { |
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"passive", |
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"monitor", |
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"station (joining)", |
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"station (not authenticated yet)", |
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"station", |
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"adhoc", |
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"access point", |
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}; |
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/* WSM_JOIN_PREAMBLE_... */ |
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static const char * const cw1200_debug_preamble[] = { |
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"long", |
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"short", |
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"long on 1 and 2 Mbps", |
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}; |
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static const char * const cw1200_debug_link_id[] = { |
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"OFF", |
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"REQ", |
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"SOFT", |
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"HARD", |
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"RESET", |
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"RESET_REMAP", |
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}; |
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static const char *cw1200_debug_mode(int mode) |
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{ |
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switch (mode) { |
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case NL80211_IFTYPE_UNSPECIFIED: |
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return "unspecified"; |
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case NL80211_IFTYPE_MONITOR: |
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return "monitor"; |
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case NL80211_IFTYPE_STATION: |
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return "station"; |
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case NL80211_IFTYPE_ADHOC: |
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return "adhoc"; |
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case NL80211_IFTYPE_MESH_POINT: |
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return "mesh point"; |
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case NL80211_IFTYPE_AP: |
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return "access point"; |
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case NL80211_IFTYPE_P2P_CLIENT: |
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return "p2p client"; |
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case NL80211_IFTYPE_P2P_GO: |
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return "p2p go"; |
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default: |
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return "unsupported"; |
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} |
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} |
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static void cw1200_queue_status_show(struct seq_file *seq, |
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struct cw1200_queue *q) |
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{ |
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int i; |
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seq_printf(seq, "Queue %d:\n", q->queue_id); |
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seq_printf(seq, " capacity: %zu\n", q->capacity); |
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seq_printf(seq, " queued: %zu\n", q->num_queued); |
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seq_printf(seq, " pending: %zu\n", q->num_pending); |
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seq_printf(seq, " sent: %zu\n", q->num_sent); |
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seq_printf(seq, " locked: %s\n", q->tx_locked_cnt ? "yes" : "no"); |
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seq_printf(seq, " overfull: %s\n", q->overfull ? "yes" : "no"); |
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seq_puts(seq, " link map: 0-> "); |
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for (i = 0; i < q->stats->map_capacity; ++i) |
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seq_printf(seq, "%.2d ", q->link_map_cache[i]); |
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seq_printf(seq, "<-%zu\n", q->stats->map_capacity); |
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} |
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static void cw1200_debug_print_map(struct seq_file *seq, |
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struct cw1200_common *priv, |
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const char *label, |
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u32 map) |
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{ |
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int i; |
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seq_printf(seq, "%s0-> ", label); |
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for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i) |
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seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : ".."); |
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seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1); |
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} |
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static int cw1200_status_show(struct seq_file *seq, void *v) |
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{ |
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int i; |
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struct list_head *item; |
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struct cw1200_common *priv = seq->private; |
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struct cw1200_debug_priv *d = priv->debug; |
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seq_puts(seq, "CW1200 Wireless LAN driver status\n"); |
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seq_printf(seq, "Hardware: %d.%d\n", |
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priv->wsm_caps.hw_id, |
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priv->wsm_caps.hw_subid); |
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seq_printf(seq, "Firmware: %s %d.%d\n", |
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cw1200_fw_types[priv->wsm_caps.fw_type], |
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priv->wsm_caps.fw_ver, |
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priv->wsm_caps.fw_build); |
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seq_printf(seq, "FW API: %d\n", |
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priv->wsm_caps.fw_api); |
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seq_printf(seq, "FW caps: 0x%.4X\n", |
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priv->wsm_caps.fw_cap); |
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seq_printf(seq, "FW label: '%s'\n", |
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priv->wsm_caps.fw_label); |
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seq_printf(seq, "Mode: %s%s\n", |
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cw1200_debug_mode(priv->mode), |
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priv->listening ? " (listening)" : ""); |
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seq_printf(seq, "Join state: %s\n", |
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cw1200_debug_join_status[priv->join_status]); |
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if (priv->channel) |
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seq_printf(seq, "Channel: %d%s\n", |
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priv->channel->hw_value, |
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priv->channel_switch_in_progress ? |
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" (switching)" : ""); |
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if (priv->rx_filter.promiscuous) |
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seq_puts(seq, "Filter: promisc\n"); |
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else if (priv->rx_filter.fcs) |
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seq_puts(seq, "Filter: fcs\n"); |
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if (priv->rx_filter.bssid) |
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seq_puts(seq, "Filter: bssid\n"); |
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if (!priv->disable_beacon_filter) |
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seq_puts(seq, "Filter: beacons\n"); |
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if (priv->enable_beacon || |
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priv->mode == NL80211_IFTYPE_AP || |
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priv->mode == NL80211_IFTYPE_ADHOC || |
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priv->mode == NL80211_IFTYPE_MESH_POINT || |
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priv->mode == NL80211_IFTYPE_P2P_GO) |
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seq_printf(seq, "Beaconing: %s\n", |
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priv->enable_beacon ? |
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"enabled" : "disabled"); |
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for (i = 0; i < 4; ++i) |
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seq_printf(seq, "EDCA(%d): %d, %d, %d, %d, %d\n", i, |
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priv->edca.params[i].cwmin, |
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priv->edca.params[i].cwmax, |
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priv->edca.params[i].aifns, |
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priv->edca.params[i].txop_limit, |
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priv->edca.params[i].max_rx_lifetime); |
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if (priv->join_status == CW1200_JOIN_STATUS_STA) { |
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static const char *pm_mode = "unknown"; |
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switch (priv->powersave_mode.mode) { |
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case WSM_PSM_ACTIVE: |
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pm_mode = "off"; |
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break; |
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case WSM_PSM_PS: |
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pm_mode = "on"; |
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break; |
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case WSM_PSM_FAST_PS: |
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pm_mode = "dynamic"; |
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break; |
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} |
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seq_printf(seq, "Preamble: %s\n", |
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cw1200_debug_preamble[priv->association_mode.preamble]); |
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seq_printf(seq, "AMPDU spcn: %d\n", |
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priv->association_mode.mpdu_start_spacing); |
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seq_printf(seq, "Basic rate: 0x%.8X\n", |
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le32_to_cpu(priv->association_mode.basic_rate_set)); |
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seq_printf(seq, "Bss lost: %d beacons\n", |
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priv->bss_params.beacon_lost_count); |
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seq_printf(seq, "AID: %d\n", |
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priv->bss_params.aid); |
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seq_printf(seq, "Rates: 0x%.8X\n", |
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priv->bss_params.operational_rate_set); |
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seq_printf(seq, "Powersave: %s\n", pm_mode); |
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} |
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seq_printf(seq, "HT: %s\n", |
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cw1200_is_ht(&priv->ht_info) ? "on" : "off"); |
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if (cw1200_is_ht(&priv->ht_info)) { |
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seq_printf(seq, "Greenfield: %s\n", |
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cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no"); |
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seq_printf(seq, "AMPDU dens: %d\n", |
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cw1200_ht_ampdu_density(&priv->ht_info)); |
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} |
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seq_printf(seq, "RSSI thold: %d\n", |
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priv->cqm_rssi_thold); |
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seq_printf(seq, "RSSI hyst: %d\n", |
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priv->cqm_rssi_hyst); |
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seq_printf(seq, "Long retr: %d\n", |
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priv->long_frame_max_tx_count); |
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seq_printf(seq, "Short retr: %d\n", |
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priv->short_frame_max_tx_count); |
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spin_lock_bh(&priv->tx_policy_cache.lock); |
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i = 0; |
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list_for_each(item, &priv->tx_policy_cache.used) |
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++i; |
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spin_unlock_bh(&priv->tx_policy_cache.lock); |
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seq_printf(seq, "RC in use: %d\n", i); |
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seq_puts(seq, "\n"); |
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for (i = 0; i < 4; ++i) { |
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cw1200_queue_status_show(seq, &priv->tx_queue[i]); |
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seq_puts(seq, "\n"); |
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} |
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cw1200_debug_print_map(seq, priv, "Link map: ", |
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priv->link_id_map); |
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cw1200_debug_print_map(seq, priv, "Asleep map: ", |
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priv->sta_asleep_mask); |
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cw1200_debug_print_map(seq, priv, "PSPOLL map: ", |
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priv->pspoll_mask); |
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seq_puts(seq, "\n"); |
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for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) { |
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if (priv->link_id_db[i].status) { |
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seq_printf(seq, "Link %d: %s, %pM\n", |
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i + 1, |
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cw1200_debug_link_id[priv->link_id_db[i].status], |
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priv->link_id_db[i].mac); |
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} |
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} |
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seq_puts(seq, "\n"); |
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seq_printf(seq, "BH status: %s\n", |
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atomic_read(&priv->bh_term) ? "terminated" : "alive"); |
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seq_printf(seq, "Pending RX: %d\n", |
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atomic_read(&priv->bh_rx)); |
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seq_printf(seq, "Pending TX: %d\n", |
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atomic_read(&priv->bh_tx)); |
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if (priv->bh_error) |
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seq_printf(seq, "BH errcode: %d\n", |
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priv->bh_error); |
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seq_printf(seq, "TX bufs: %d x %d bytes\n", |
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priv->wsm_caps.input_buffers, |
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priv->wsm_caps.input_buffer_size); |
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seq_printf(seq, "Used bufs: %d\n", |
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priv->hw_bufs_used); |
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seq_printf(seq, "Powermgmt: %s\n", |
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priv->powersave_enabled ? "on" : "off"); |
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seq_printf(seq, "Device: %s\n", |
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priv->device_can_sleep ? "asleep" : "awake"); |
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spin_lock(&priv->wsm_cmd.lock); |
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seq_printf(seq, "WSM status: %s\n", |
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priv->wsm_cmd.done ? "idle" : "active"); |
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seq_printf(seq, "WSM cmd: 0x%.4X (%td bytes)\n", |
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priv->wsm_cmd.cmd, priv->wsm_cmd.len); |
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seq_printf(seq, "WSM retval: %d\n", |
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priv->wsm_cmd.ret); |
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spin_unlock(&priv->wsm_cmd.lock); |
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seq_printf(seq, "Datapath: %s\n", |
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atomic_read(&priv->tx_lock) ? "locked" : "unlocked"); |
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if (atomic_read(&priv->tx_lock)) |
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seq_printf(seq, "TXlock cnt: %d\n", |
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atomic_read(&priv->tx_lock)); |
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seq_printf(seq, "TXed: %d\n", |
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d->tx); |
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seq_printf(seq, "AGG TXed: %d\n", |
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d->tx_agg); |
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seq_printf(seq, "MULTI TXed: %d (%d)\n", |
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d->tx_multi, d->tx_multi_frames); |
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seq_printf(seq, "RXed: %d\n", |
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d->rx); |
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seq_printf(seq, "AGG RXed: %d\n", |
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d->rx_agg); |
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seq_printf(seq, "TX miss: %d\n", |
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d->tx_cache_miss); |
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seq_printf(seq, "TX align: %d\n", |
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d->tx_align); |
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seq_printf(seq, "TX burst: %d\n", |
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d->tx_burst); |
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seq_printf(seq, "TX TTL: %d\n", |
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d->tx_ttl); |
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seq_printf(seq, "Scan: %s\n", |
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atomic_read(&priv->scan.in_progress) ? "active" : "idle"); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(cw1200_status); |
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static int cw1200_counters_show(struct seq_file *seq, void *v) |
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{ |
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int ret; |
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struct cw1200_common *priv = seq->private; |
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struct wsm_mib_counters_table counters; |
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ret = wsm_get_counters_table(priv, &counters); |
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if (ret) |
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return ret; |
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#define PUT_COUNTER(tab, name) \ |
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seq_printf(seq, "%s:" tab "%d\n", #name, \ |
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__le32_to_cpu(counters.name)) |
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PUT_COUNTER("\t\t", plcp_errors); |
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PUT_COUNTER("\t\t", fcs_errors); |
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PUT_COUNTER("\t\t", tx_packets); |
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PUT_COUNTER("\t\t", rx_packets); |
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PUT_COUNTER("\t\t", rx_packet_errors); |
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PUT_COUNTER("\t", rx_decryption_failures); |
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PUT_COUNTER("\t\t", rx_mic_failures); |
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PUT_COUNTER("\t", rx_no_key_failures); |
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PUT_COUNTER("\t", tx_multicast_frames); |
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PUT_COUNTER("\t", tx_frames_success); |
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PUT_COUNTER("\t", tx_frame_failures); |
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PUT_COUNTER("\t", tx_frames_retried); |
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PUT_COUNTER("\t", tx_frames_multi_retried); |
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PUT_COUNTER("\t", rx_frame_duplicates); |
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PUT_COUNTER("\t\t", rts_success); |
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PUT_COUNTER("\t\t", rts_failures); |
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PUT_COUNTER("\t\t", ack_failures); |
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PUT_COUNTER("\t", rx_multicast_frames); |
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PUT_COUNTER("\t", rx_frames_success); |
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PUT_COUNTER("\t", rx_cmac_icv_errors); |
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PUT_COUNTER("\t\t", rx_cmac_replays); |
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PUT_COUNTER("\t", rx_mgmt_ccmp_replays); |
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#undef PUT_COUNTER |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(cw1200_counters); |
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static ssize_t cw1200_wsm_dumps(struct file *file, |
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const char __user *user_buf, size_t count, loff_t *ppos) |
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{ |
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struct cw1200_common *priv = file->private_data; |
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char buf[1]; |
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if (!count) |
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return -EINVAL; |
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if (copy_from_user(buf, user_buf, 1)) |
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return -EFAULT; |
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if (buf[0] == '1') |
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priv->wsm_enable_wsm_dumps = 1; |
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else |
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priv->wsm_enable_wsm_dumps = 0; |
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return count; |
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} |
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static const struct file_operations fops_wsm_dumps = { |
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.open = simple_open, |
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.write = cw1200_wsm_dumps, |
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.llseek = default_llseek, |
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}; |
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int cw1200_debug_init(struct cw1200_common *priv) |
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{ |
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int ret = -ENOMEM; |
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struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv), |
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GFP_KERNEL); |
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priv->debug = d; |
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if (!d) |
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return ret; |
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d->debugfs_phy = debugfs_create_dir("cw1200", |
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priv->hw->wiphy->debugfsdir); |
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debugfs_create_file("status", 0400, d->debugfs_phy, priv, |
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&cw1200_status_fops); |
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debugfs_create_file("counters", 0400, d->debugfs_phy, priv, |
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&cw1200_counters_fops); |
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debugfs_create_file("wsm_dumps", 0200, d->debugfs_phy, priv, |
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&fops_wsm_dumps); |
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return 0; |
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} |
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void cw1200_debug_release(struct cw1200_common *priv) |
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{ |
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struct cw1200_debug_priv *d = priv->debug; |
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if (d) { |
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debugfs_remove_recursive(d->debugfs_phy); |
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priv->debug = NULL; |
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kfree(d); |
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} |
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}
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