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