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path: root/drivers/net/wireless/iwmc3200wifi/debugfs.c
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Diffstat (limited to 'drivers/net/wireless/iwmc3200wifi/debugfs.c')
-rw-r--r--drivers/net/wireless/iwmc3200wifi/debugfs.c488
1 files changed, 488 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwmc3200wifi/debugfs.c b/drivers/net/wireless/iwmc3200wifi/debugfs.c
new file mode 100644
index 00000000..b6199d12
--- /dev/null
+++ b/drivers/net/wireless/iwmc3200wifi/debugfs.c
@@ -0,0 +1,488 @@
+/*
+ * Intel Wireless Multicomm 3200 WiFi driver
+ *
+ * Copyright (C) 2009 Intel Corporation <ilw@linux.intel.com>
+ * Samuel Ortiz <samuel.ortiz@intel.com>
+ * Zhu Yi <yi.zhu@intel.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <linux/debugfs.h>
+#include <linux/export.h>
+
+#include "iwm.h"
+#include "bus.h"
+#include "rx.h"
+#include "debug.h"
+
+static struct {
+ u8 id;
+ char *name;
+} iwm_debug_module[__IWM_DM_NR] = {
+ {IWM_DM_BOOT, "boot"},
+ {IWM_DM_FW, "fw"},
+ {IWM_DM_SDIO, "sdio"},
+ {IWM_DM_NTF, "ntf"},
+ {IWM_DM_RX, "rx"},
+ {IWM_DM_TX, "tx"},
+ {IWM_DM_MLME, "mlme"},
+ {IWM_DM_CMD, "cmd"},
+ {IWM_DM_WEXT, "wext"},
+};
+
+#define add_dbg_module(dbg, name, id, initlevel) \
+do { \
+ dbg.dbg_module[id] = (initlevel); \
+ dbg.dbg_module_dentries[id] = \
+ debugfs_create_x8(name, 0600, \
+ dbg.dbgdir, \
+ &(dbg.dbg_module[id])); \
+} while (0)
+
+static int iwm_debugfs_u32_read(void *data, u64 *val)
+{
+ struct iwm_priv *iwm = data;
+
+ *val = iwm->dbg.dbg_level;
+ return 0;
+}
+
+static int iwm_debugfs_dbg_level_write(void *data, u64 val)
+{
+ struct iwm_priv *iwm = data;
+ int i;
+
+ iwm->dbg.dbg_level = val;
+
+ for (i = 0; i < __IWM_DM_NR; i++)
+ iwm->dbg.dbg_module[i] = val;
+
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_iwm_dbg_level,
+ iwm_debugfs_u32_read, iwm_debugfs_dbg_level_write,
+ "%llu\n");
+
+static int iwm_debugfs_dbg_modules_write(void *data, u64 val)
+{
+ struct iwm_priv *iwm = data;
+ int i, bit;
+
+ iwm->dbg.dbg_modules = val;
+
+ for (i = 0; i < __IWM_DM_NR; i++)
+ iwm->dbg.dbg_module[i] = 0;
+
+ for_each_set_bit(bit, &iwm->dbg.dbg_modules, __IWM_DM_NR)
+ iwm->dbg.dbg_module[bit] = iwm->dbg.dbg_level;
+
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_iwm_dbg_modules,
+ iwm_debugfs_u32_read, iwm_debugfs_dbg_modules_write,
+ "%llu\n");
+
+
+static ssize_t iwm_debugfs_txq_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct iwm_priv *iwm = filp->private_data;
+ char *buf;
+ int i, buf_len = 4096;
+ size_t len = 0;
+ ssize_t ret;
+
+ if (*ppos != 0)
+ return 0;
+ if (count < sizeof(buf))
+ return -ENOSPC;
+
+ buf = kzalloc(buf_len, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ for (i = 0; i < IWM_TX_QUEUES; i++) {
+ struct iwm_tx_queue *txq = &iwm->txq[i];
+ struct sk_buff *skb;
+ int j;
+ unsigned long flags;
+
+ spin_lock_irqsave(&txq->queue.lock, flags);
+
+ skb = (struct sk_buff *)&txq->queue;
+
+ len += snprintf(buf + len, buf_len - len, "TXQ #%d\n", i);
+ len += snprintf(buf + len, buf_len - len, "\tStopped: %d\n",
+ __netif_subqueue_stopped(iwm_to_ndev(iwm),
+ txq->id));
+ len += snprintf(buf + len, buf_len - len, "\tConcat count:%d\n",
+ txq->concat_count);
+ len += snprintf(buf + len, buf_len - len, "\tQueue len: %d\n",
+ skb_queue_len(&txq->queue));
+ for (j = 0; j < skb_queue_len(&txq->queue); j++) {
+ struct iwm_tx_info *tx_info;
+
+ skb = skb->next;
+ tx_info = skb_to_tx_info(skb);
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tSKB #%d\n", j);
+ len += snprintf(buf + len, buf_len - len,
+ "\t\tsta: %d\n", tx_info->sta);
+ len += snprintf(buf + len, buf_len - len,
+ "\t\tcolor: %d\n", tx_info->color);
+ len += snprintf(buf + len, buf_len - len,
+ "\t\ttid: %d\n", tx_info->tid);
+ }
+
+ spin_unlock_irqrestore(&txq->queue.lock, flags);
+
+ spin_lock_irqsave(&txq->stopped_queue.lock, flags);
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tStopped Queue len: %d\n",
+ skb_queue_len(&txq->stopped_queue));
+ for (j = 0; j < skb_queue_len(&txq->stopped_queue); j++) {
+ struct iwm_tx_info *tx_info;
+
+ skb = skb->next;
+ tx_info = skb_to_tx_info(skb);
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tSKB #%d\n", j);
+ len += snprintf(buf + len, buf_len - len,
+ "\t\tsta: %d\n", tx_info->sta);
+ len += snprintf(buf + len, buf_len - len,
+ "\t\tcolor: %d\n", tx_info->color);
+ len += snprintf(buf + len, buf_len - len,
+ "\t\ttid: %d\n", tx_info->tid);
+ }
+
+ spin_unlock_irqrestore(&txq->stopped_queue.lock, flags);
+ }
+
+ ret = simple_read_from_buffer(buffer, len, ppos, buf, buf_len);
+ kfree(buf);
+
+ return ret;
+}
+
+static ssize_t iwm_debugfs_tx_credit_read(struct file *filp,
+ char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct iwm_priv *iwm = filp->private_data;
+ struct iwm_tx_credit *credit = &iwm->tx_credit;
+ char *buf;
+ int i, buf_len = 4096;
+ size_t len = 0;
+ ssize_t ret;
+
+ if (*ppos != 0)
+ return 0;
+ if (count < sizeof(buf))
+ return -ENOSPC;
+
+ buf = kzalloc(buf_len, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ len += snprintf(buf + len, buf_len - len,
+ "NR pools: %d\n", credit->pool_nr);
+ len += snprintf(buf + len, buf_len - len,
+ "pools map: 0x%lx\n", credit->full_pools_map);
+
+ len += snprintf(buf + len, buf_len - len, "\n### POOLS ###\n");
+ for (i = 0; i < IWM_MACS_OUT_GROUPS; i++) {
+ len += snprintf(buf + len, buf_len - len,
+ "pools entry #%d\n", i);
+ len += snprintf(buf + len, buf_len - len,
+ "\tid: %d\n",
+ credit->pools[i].id);
+ len += snprintf(buf + len, buf_len - len,
+ "\tsid: %d\n",
+ credit->pools[i].sid);
+ len += snprintf(buf + len, buf_len - len,
+ "\tmin_pages: %d\n",
+ credit->pools[i].min_pages);
+ len += snprintf(buf + len, buf_len - len,
+ "\tmax_pages: %d\n",
+ credit->pools[i].max_pages);
+ len += snprintf(buf + len, buf_len - len,
+ "\talloc_pages: %d\n",
+ credit->pools[i].alloc_pages);
+ len += snprintf(buf + len, buf_len - len,
+ "\tfreed_pages: %d\n",
+ credit->pools[i].total_freed_pages);
+ }
+
+ len += snprintf(buf + len, buf_len - len, "\n### SPOOLS ###\n");
+ for (i = 0; i < IWM_MACS_OUT_SGROUPS; i++) {
+ len += snprintf(buf + len, buf_len - len,
+ "spools entry #%d\n", i);
+ len += snprintf(buf + len, buf_len - len,
+ "\tid: %d\n",
+ credit->spools[i].id);
+ len += snprintf(buf + len, buf_len - len,
+ "\tmax_pages: %d\n",
+ credit->spools[i].max_pages);
+ len += snprintf(buf + len, buf_len - len,
+ "\talloc_pages: %d\n",
+ credit->spools[i].alloc_pages);
+
+ }
+
+ ret = simple_read_from_buffer(buffer, len, ppos, buf, buf_len);
+ kfree(buf);
+
+ return ret;
+}
+
+static ssize_t iwm_debugfs_rx_ticket_read(struct file *filp,
+ char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct iwm_priv *iwm = filp->private_data;
+ struct iwm_rx_ticket_node *ticket;
+ char *buf;
+ int buf_len = 4096, i;
+ size_t len = 0;
+ ssize_t ret;
+
+ if (*ppos != 0)
+ return 0;
+ if (count < sizeof(buf))
+ return -ENOSPC;
+
+ buf = kzalloc(buf_len, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ spin_lock(&iwm->ticket_lock);
+ list_for_each_entry(ticket, &iwm->rx_tickets, node) {
+ len += snprintf(buf + len, buf_len - len, "Ticket #%d\n",
+ ticket->ticket->id);
+ len += snprintf(buf + len, buf_len - len, "\taction: 0x%x\n",
+ ticket->ticket->action);
+ len += snprintf(buf + len, buf_len - len, "\tflags: 0x%x\n",
+ ticket->ticket->flags);
+ }
+ spin_unlock(&iwm->ticket_lock);
+
+ for (i = 0; i < IWM_RX_ID_HASH; i++) {
+ struct iwm_rx_packet *packet;
+ struct list_head *pkt_list = &iwm->rx_packets[i];
+
+ if (!list_empty(pkt_list)) {
+ len += snprintf(buf + len, buf_len - len,
+ "Packet hash #%d\n", i);
+ spin_lock(&iwm->packet_lock[i]);
+ list_for_each_entry(packet, pkt_list, node) {
+ len += snprintf(buf + len, buf_len - len,
+ "\tPacket id: %d\n",
+ packet->id);
+ len += snprintf(buf + len, buf_len - len,
+ "\tPacket length: %lu\n",
+ packet->pkt_size);
+ }
+ spin_unlock(&iwm->packet_lock[i]);
+ }
+ }
+
+ ret = simple_read_from_buffer(buffer, len, ppos, buf, buf_len);
+ kfree(buf);
+
+ return ret;
+}
+
+static ssize_t iwm_debugfs_fw_err_read(struct file *filp,
+ char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+
+ struct iwm_priv *iwm = filp->private_data;
+ char buf[512];
+ int buf_len = 512;
+ size_t len = 0;
+
+ if (*ppos != 0)
+ return 0;
+ if (count < sizeof(buf))
+ return -ENOSPC;
+
+ if (!iwm->last_fw_err)
+ return -ENOMEM;
+
+ if (iwm->last_fw_err->line_num == 0)
+ goto out;
+
+ len += snprintf(buf + len, buf_len - len, "%cMAC FW ERROR:\n",
+ (le32_to_cpu(iwm->last_fw_err->category) == UMAC_SYS_ERR_CAT_LMAC)
+ ? 'L' : 'U');
+ len += snprintf(buf + len, buf_len - len,
+ "\tCategory: %d\n",
+ le32_to_cpu(iwm->last_fw_err->category));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tStatus: 0x%x\n",
+ le32_to_cpu(iwm->last_fw_err->status));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tPC: 0x%x\n",
+ le32_to_cpu(iwm->last_fw_err->pc));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tblink1: %d\n",
+ le32_to_cpu(iwm->last_fw_err->blink1));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tblink2: %d\n",
+ le32_to_cpu(iwm->last_fw_err->blink2));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tilink1: %d\n",
+ le32_to_cpu(iwm->last_fw_err->ilink1));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tilink2: %d\n",
+ le32_to_cpu(iwm->last_fw_err->ilink2));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tData1: 0x%x\n",
+ le32_to_cpu(iwm->last_fw_err->data1));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tData2: 0x%x\n",
+ le32_to_cpu(iwm->last_fw_err->data2));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tLine number: %d\n",
+ le32_to_cpu(iwm->last_fw_err->line_num));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tUMAC status: 0x%x\n",
+ le32_to_cpu(iwm->last_fw_err->umac_status));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tLMAC status: 0x%x\n",
+ le32_to_cpu(iwm->last_fw_err->lmac_status));
+
+ len += snprintf(buf + len, buf_len - len,
+ "\tSDIO status: 0x%x\n",
+ le32_to_cpu(iwm->last_fw_err->sdio_status));
+
+out:
+
+ return simple_read_from_buffer(buffer, len, ppos, buf, buf_len);
+}
+
+static const struct file_operations iwm_debugfs_txq_fops = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .read = iwm_debugfs_txq_read,
+ .llseek = default_llseek,
+};
+
+static const struct file_operations iwm_debugfs_tx_credit_fops = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .read = iwm_debugfs_tx_credit_read,
+ .llseek = default_llseek,
+};
+
+static const struct file_operations iwm_debugfs_rx_ticket_fops = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .read = iwm_debugfs_rx_ticket_read,
+ .llseek = default_llseek,
+};
+
+static const struct file_operations iwm_debugfs_fw_err_fops = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .read = iwm_debugfs_fw_err_read,
+ .llseek = default_llseek,
+};
+
+void iwm_debugfs_init(struct iwm_priv *iwm)
+{
+ int i;
+
+ iwm->dbg.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
+ iwm->dbg.devdir = debugfs_create_dir(wiphy_name(iwm_to_wiphy(iwm)),
+ iwm->dbg.rootdir);
+ iwm->dbg.dbgdir = debugfs_create_dir("debug", iwm->dbg.devdir);
+ iwm->dbg.rxdir = debugfs_create_dir("rx", iwm->dbg.devdir);
+ iwm->dbg.txdir = debugfs_create_dir("tx", iwm->dbg.devdir);
+ iwm->dbg.busdir = debugfs_create_dir("bus", iwm->dbg.devdir);
+ if (iwm->bus_ops->debugfs_init)
+ iwm->bus_ops->debugfs_init(iwm, iwm->dbg.busdir);
+
+ iwm->dbg.dbg_level = IWM_DL_NONE;
+ iwm->dbg.dbg_level_dentry =
+ debugfs_create_file("level", 0200, iwm->dbg.dbgdir, iwm,
+ &fops_iwm_dbg_level);
+
+ iwm->dbg.dbg_modules = IWM_DM_DEFAULT;
+ iwm->dbg.dbg_modules_dentry =
+ debugfs_create_file("modules", 0200, iwm->dbg.dbgdir, iwm,
+ &fops_iwm_dbg_modules);
+
+ for (i = 0; i < __IWM_DM_NR; i++)
+ add_dbg_module(iwm->dbg, iwm_debug_module[i].name,
+ iwm_debug_module[i].id, IWM_DL_DEFAULT);
+
+ iwm->dbg.txq_dentry = debugfs_create_file("queues", 0200,
+ iwm->dbg.txdir, iwm,
+ &iwm_debugfs_txq_fops);
+ iwm->dbg.tx_credit_dentry = debugfs_create_file("credits", 0200,
+ iwm->dbg.txdir, iwm,
+ &iwm_debugfs_tx_credit_fops);
+ iwm->dbg.rx_ticket_dentry = debugfs_create_file("tickets", 0200,
+ iwm->dbg.rxdir, iwm,
+ &iwm_debugfs_rx_ticket_fops);
+ iwm->dbg.fw_err_dentry = debugfs_create_file("last_fw_err", 0200,
+ iwm->dbg.dbgdir, iwm,
+ &iwm_debugfs_fw_err_fops);
+}
+
+void iwm_debugfs_exit(struct iwm_priv *iwm)
+{
+ int i;
+
+ for (i = 0; i < __IWM_DM_NR; i++)
+ debugfs_remove(iwm->dbg.dbg_module_dentries[i]);
+
+ debugfs_remove(iwm->dbg.dbg_modules_dentry);
+ debugfs_remove(iwm->dbg.dbg_level_dentry);
+ debugfs_remove(iwm->dbg.txq_dentry);
+ debugfs_remove(iwm->dbg.tx_credit_dentry);
+ debugfs_remove(iwm->dbg.rx_ticket_dentry);
+ debugfs_remove(iwm->dbg.fw_err_dentry);
+ if (iwm->bus_ops->debugfs_exit)
+ iwm->bus_ops->debugfs_exit(iwm);
+
+ debugfs_remove(iwm->dbg.busdir);
+ debugfs_remove(iwm->dbg.dbgdir);
+ debugfs_remove(iwm->dbg.txdir);
+ debugfs_remove(iwm->dbg.rxdir);
+ debugfs_remove(iwm->dbg.devdir);
+ debugfs_remove(iwm->dbg.rootdir);
+}
generated by cgit (git 2.34.1) at 2025-01-11 13:49:23 +0000