--- /dev/null
+/*
+ * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
+ * DebugFS code
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include "cw1200.h"
+#include "debug.h"
+#include "fwio.h"
+
+/* join_status */
+static const char * const cw1200_debug_join_status[] = {
+ "passive",
+ "monitor",
+ "station (joining)",
+ "station (not authenticated yet)",
+ "station",
+ "adhoc",
+ "access point",
+};
+
+/* WSM_JOIN_PREAMBLE_... */
+static const char * const cw1200_debug_preamble[] = {
+ "long",
+ "short",
+ "long on 1 and 2 Mbps",
+};
+
+
+static const char * const cw1200_debug_link_id[] = {
+ "OFF",
+ "REQ",
+ "SOFT",
+ "HARD",
+ "RESET",
+ "RESET_REMAP",
+};
+
+static const char *cw1200_debug_mode(int mode)
+{
+ switch (mode) {
+ case NL80211_IFTYPE_UNSPECIFIED:
+ return "unspecified";
+ case NL80211_IFTYPE_MONITOR:
+ return "monitor";
+ case NL80211_IFTYPE_STATION:
+ return "station";
+ case NL80211_IFTYPE_ADHOC:
+ return "adhoc";
+ case NL80211_IFTYPE_MESH_POINT:
+ return "mesh point";
+ case NL80211_IFTYPE_AP:
+ return "access point";
+ case NL80211_IFTYPE_P2P_CLIENT:
+ return "p2p client";
+ case NL80211_IFTYPE_P2P_GO:
+ return "p2p go";
+ default:
+ return "unsupported";
+ }
+}
+
+static void cw1200_queue_status_show(struct seq_file *seq,
+ struct cw1200_queue *q)
+{
+ int i;
+ seq_printf(seq, "Queue %d:\n", q->queue_id);
+ seq_printf(seq, " capacity: %zu\n", q->capacity);
+ seq_printf(seq, " queued: %zu\n", q->num_queued);
+ seq_printf(seq, " pending: %zu\n", q->num_pending);
+ seq_printf(seq, " sent: %zu\n", q->num_sent);
+ seq_printf(seq, " locked: %s\n", q->tx_locked_cnt ? "yes" : "no");
+ seq_printf(seq, " overfull: %s\n", q->overfull ? "yes" : "no");
+ seq_puts(seq, " link map: 0-> ");
+ for (i = 0; i < q->stats->map_capacity; ++i)
+ seq_printf(seq, "%.2d ", q->link_map_cache[i]);
+ seq_printf(seq, "<-%zu\n", q->stats->map_capacity);
+}
+
+static void cw1200_debug_print_map(struct seq_file *seq,
+ struct cw1200_common *priv,
+ const char *label,
+ u32 map)
+{
+ int i;
+ seq_printf(seq, "%s0-> ", label);
+ for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i)
+ seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : "..");
+ seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1);
+}
+
+static int cw1200_status_show(struct seq_file *seq, void *v)
+{
+ int i;
+ struct list_head *item;
+ struct cw1200_common *priv = seq->private;
+ struct cw1200_debug_priv *d = priv->debug;
+
+ seq_puts(seq, "CW1200 Wireless LAN driver status\n");
+ seq_printf(seq, "Hardware: %d.%d\n",
+ priv->wsm_caps.hw_id,
+ priv->wsm_caps.hw_subid);
+ seq_printf(seq, "Firmware: %s %d.%d\n",
+ cw1200_fw_types[priv->wsm_caps.fw_type],
+ priv->wsm_caps.fw_ver,
+ priv->wsm_caps.fw_build);
+ seq_printf(seq, "FW API: %d\n",
+ priv->wsm_caps.fw_api);
+ seq_printf(seq, "FW caps: 0x%.4X\n",
+ priv->wsm_caps.fw_cap);
+ seq_printf(seq, "FW label: '%s'\n",
+ priv->wsm_caps.fw_label);
+ seq_printf(seq, "Mode: %s%s\n",
+ cw1200_debug_mode(priv->mode),
+ priv->listening ? " (listening)" : "");
+ seq_printf(seq, "Join state: %s\n",
+ cw1200_debug_join_status[priv->join_status]);
+ if (priv->channel)
+ seq_printf(seq, "Channel: %d%s\n",
+ priv->channel->hw_value,
+ priv->channel_switch_in_progress ?
+ " (switching)" : "");
+ if (priv->rx_filter.promiscuous)
+ seq_puts(seq, "Filter: promisc\n");
+ else if (priv->rx_filter.fcs)
+ seq_puts(seq, "Filter: fcs\n");
+ if (priv->rx_filter.bssid)
+ seq_puts(seq, "Filter: bssid\n");
+ if (!priv->disable_beacon_filter)
+ seq_puts(seq, "Filter: beacons\n");
+
+ if (priv->enable_beacon ||
+ priv->mode == NL80211_IFTYPE_AP ||
+ priv->mode == NL80211_IFTYPE_ADHOC ||
+ priv->mode == NL80211_IFTYPE_MESH_POINT ||
+ priv->mode == NL80211_IFTYPE_P2P_GO)
+ seq_printf(seq, "Beaconing: %s\n",
+ priv->enable_beacon ?
+ "enabled" : "disabled");
+
+ for (i = 0; i < 4; ++i)
+ seq_printf(seq, "EDCA(%d): %d, %d, %d, %d, %d\n", i,
+ priv->edca.params[i].cwmin,
+ priv->edca.params[i].cwmax,
+ priv->edca.params[i].aifns,
+ priv->edca.params[i].txop_limit,
+ priv->edca.params[i].max_rx_lifetime);
+
+ if (priv->join_status == CW1200_JOIN_STATUS_STA) {
+ static const char *pm_mode = "unknown";
+ switch (priv->powersave_mode.mode) {
+ case WSM_PSM_ACTIVE:
+ pm_mode = "off";
+ break;
+ case WSM_PSM_PS:
+ pm_mode = "on";
+ break;
+ case WSM_PSM_FAST_PS:
+ pm_mode = "dynamic";
+ break;
+ }
+ seq_printf(seq, "Preamble: %s\n",
+ cw1200_debug_preamble[priv->association_mode.preamble]);
+ seq_printf(seq, "AMPDU spcn: %d\n",
+ priv->association_mode.mpdu_start_spacing);
+ seq_printf(seq, "Basic rate: 0x%.8X\n",
+ le32_to_cpu(priv->association_mode.basic_rate_set));
+ seq_printf(seq, "Bss lost: %d beacons\n",
+ priv->bss_params.beacon_lost_count);
+ seq_printf(seq, "AID: %d\n",
+ priv->bss_params.aid);
+ seq_printf(seq, "Rates: 0x%.8X\n",
+ priv->bss_params.operational_rate_set);
+ seq_printf(seq, "Powersave: %s\n", pm_mode);
+ }
+ seq_printf(seq, "HT: %s\n",
+ cw1200_is_ht(&priv->ht_info) ? "on" : "off");
+ if (cw1200_is_ht(&priv->ht_info)) {
+ seq_printf(seq, "Greenfield: %s\n",
+ cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no");
+ seq_printf(seq, "AMPDU dens: %d\n",
+ cw1200_ht_ampdu_density(&priv->ht_info));
+ }
+ seq_printf(seq, "RSSI thold: %d\n",
+ priv->cqm_rssi_thold);
+ seq_printf(seq, "RSSI hyst: %d\n",
+ priv->cqm_rssi_hyst);
+ seq_printf(seq, "Long retr: %d\n",
+ priv->long_frame_max_tx_count);
+ seq_printf(seq, "Short retr: %d\n",
+ priv->short_frame_max_tx_count);
+ spin_lock_bh(&priv->tx_policy_cache.lock);
+ i = 0;
+ list_for_each(item, &priv->tx_policy_cache.used)
+ ++i;
+ spin_unlock_bh(&priv->tx_policy_cache.lock);
+ seq_printf(seq, "RC in use: %d\n", i);
+
+ seq_puts(seq, "\n");
+ for (i = 0; i < 4; ++i) {
+ cw1200_queue_status_show(seq, &priv->tx_queue[i]);
+ seq_puts(seq, "\n");
+ }
+
+ cw1200_debug_print_map(seq, priv, "Link map: ",
+ priv->link_id_map);
+ cw1200_debug_print_map(seq, priv, "Asleep map: ",
+ priv->sta_asleep_mask);
+ cw1200_debug_print_map(seq, priv, "PSPOLL map: ",
+ priv->pspoll_mask);
+
+ seq_puts(seq, "\n");
+
+ for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+ if (priv->link_id_db[i].status) {
+ seq_printf(seq, "Link %d: %s, %pM\n",
+ i + 1,
+ cw1200_debug_link_id[priv->link_id_db[i].status],
+ priv->link_id_db[i].mac);
+ }
+ }
+
+ seq_puts(seq, "\n");
+
+ seq_printf(seq, "BH status: %s\n",
+ atomic_read(&priv->bh_term) ? "terminated" : "alive");
+ seq_printf(seq, "Pending RX: %d\n",
+ atomic_read(&priv->bh_rx));
+ seq_printf(seq, "Pending TX: %d\n",
+ atomic_read(&priv->bh_tx));
+ if (priv->bh_error)
+ seq_printf(seq, "BH errcode: %d\n",
+ priv->bh_error);
+ seq_printf(seq, "TX bufs: %d x %d bytes\n",
+ priv->wsm_caps.input_buffers,
+ priv->wsm_caps.input_buffer_size);
+ seq_printf(seq, "Used bufs: %d\n",
+ priv->hw_bufs_used);
+ seq_printf(seq, "Powermgmt: %s\n",
+ priv->powersave_enabled ? "on" : "off");
+ seq_printf(seq, "Device: %s\n",
+ priv->device_can_sleep ? "asleep" : "awake");
+
+ spin_lock(&priv->wsm_cmd.lock);
+ seq_printf(seq, "WSM status: %s\n",
+ priv->wsm_cmd.done ? "idle" : "active");
+ seq_printf(seq, "WSM cmd: 0x%.4X (%td bytes)\n",
+ priv->wsm_cmd.cmd, priv->wsm_cmd.len);
+ seq_printf(seq, "WSM retval: %d\n",
+ priv->wsm_cmd.ret);
+ spin_unlock(&priv->wsm_cmd.lock);
+
+ seq_printf(seq, "Datapath: %s\n",
+ atomic_read(&priv->tx_lock) ? "locked" : "unlocked");
+ if (atomic_read(&priv->tx_lock))
+ seq_printf(seq, "TXlock cnt: %d\n",
+ atomic_read(&priv->tx_lock));
+
+ seq_printf(seq, "TXed: %d\n",
+ d->tx);
+ seq_printf(seq, "AGG TXed: %d\n",
+ d->tx_agg);
+ seq_printf(seq, "MULTI TXed: %d (%d)\n",
+ d->tx_multi, d->tx_multi_frames);
+ seq_printf(seq, "RXed: %d\n",
+ d->rx);
+ seq_printf(seq, "AGG RXed: %d\n",
+ d->rx_agg);
+ seq_printf(seq, "TX miss: %d\n",
+ d->tx_cache_miss);
+ seq_printf(seq, "TX align: %d\n",
+ d->tx_align);
+ seq_printf(seq, "TX burst: %d\n",
+ d->tx_burst);
+ seq_printf(seq, "TX TTL: %d\n",
+ d->tx_ttl);
+ seq_printf(seq, "Scan: %s\n",
+ atomic_read(&priv->scan.in_progress) ? "active" : "idle");
+
+ return 0;
+}
+
+static int cw1200_status_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, &cw1200_status_show,
+ inode->i_private);
+}
+
+static const struct file_operations fops_status = {
+ .open = cw1200_status_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int cw1200_counters_show(struct seq_file *seq, void *v)
+{
+ int ret;
+ struct cw1200_common *priv = seq->private;
+ struct wsm_mib_counters_table counters;
+
+ ret = wsm_get_counters_table(priv, &counters);
+ if (ret)
+ return ret;
+
+#define PUT_COUNTER(tab, name) \
+ seq_printf(seq, "%s:" tab "%d\n", #name, \
+ __le32_to_cpu(counters.name))
+
+ PUT_COUNTER("\t\t", plcp_errors);
+ PUT_COUNTER("\t\t", fcs_errors);
+ PUT_COUNTER("\t\t", tx_packets);
+ PUT_COUNTER("\t\t", rx_packets);
+ PUT_COUNTER("\t\t", rx_packet_errors);
+ PUT_COUNTER("\t", rx_decryption_failures);
+ PUT_COUNTER("\t\t", rx_mic_failures);
+ PUT_COUNTER("\t", rx_no_key_failures);
+ PUT_COUNTER("\t", tx_multicast_frames);
+ PUT_COUNTER("\t", tx_frames_success);
+ PUT_COUNTER("\t", tx_frame_failures);
+ PUT_COUNTER("\t", tx_frames_retried);
+ PUT_COUNTER("\t", tx_frames_multi_retried);
+ PUT_COUNTER("\t", rx_frame_duplicates);
+ PUT_COUNTER("\t\t", rts_success);
+ PUT_COUNTER("\t\t", rts_failures);
+ PUT_COUNTER("\t\t", ack_failures);
+ PUT_COUNTER("\t", rx_multicast_frames);
+ PUT_COUNTER("\t", rx_frames_success);
+ PUT_COUNTER("\t", rx_cmac_icv_errors);
+ PUT_COUNTER("\t\t", rx_cmac_replays);
+ PUT_COUNTER("\t", rx_mgmt_ccmp_replays);
+
+#undef PUT_COUNTER
+
+ return 0;
+}
+
+static int cw1200_counters_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, &cw1200_counters_show,
+ inode->i_private);
+}
+
+static const struct file_operations fops_counters = {
+ .open = cw1200_counters_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static ssize_t cw1200_wsm_dumps(struct file *file,
+ const char __user *user_buf, size_t count, loff_t *ppos)
+{
+ struct cw1200_common *priv = file->private_data;
+ char buf[1];
+
+ if (!count)
+ return -EINVAL;
+ if (copy_from_user(buf, user_buf, 1))
+ return -EFAULT;
+
+ if (buf[0] == '1')
+ priv->wsm_enable_wsm_dumps = 1;
+ else
+ priv->wsm_enable_wsm_dumps = 0;
+
+ return count;
+}
+
+static const struct file_operations fops_wsm_dumps = {
+ .open = simple_open,
+ .write = cw1200_wsm_dumps,
+ .llseek = default_llseek,
+};
+
+int cw1200_debug_init(struct cw1200_common *priv)
+{
+ int ret = -ENOMEM;
+ struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv),
+ GFP_KERNEL);
+ priv->debug = d;
+ if (!d)
+ return ret;
+
+ d->debugfs_phy = debugfs_create_dir("cw1200",
+ priv->hw->wiphy->debugfsdir);
+ if (!d->debugfs_phy)
+ goto err;
+
+ if (!debugfs_create_file("status", S_IRUSR, d->debugfs_phy,
+ priv, &fops_status))
+ goto err;
+
+ if (!debugfs_create_file("counters", S_IRUSR, d->debugfs_phy,
+ priv, &fops_counters))
+ goto err;
+
+ if (!debugfs_create_file("wsm_dumps", S_IWUSR, d->debugfs_phy,
+ priv, &fops_wsm_dumps))
+ goto err;
+
+ return 0;
+
+err:
+ priv->debug = NULL;
+ debugfs_remove_recursive(d->debugfs_phy);
+ kfree(d);
+ return ret;
+}
+
+void cw1200_debug_release(struct cw1200_common *priv)
+{
+ struct cw1200_debug_priv *d = priv->debug;
+ if (d) {
+ debugfs_remove_recursive(d->debugfs_phy);
+ priv->debug = NULL;
+ kfree(d);
+ }
+}
Code Review / kvmfornfv.git / blobdiff