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linux/drivers/net/wireless/iwlwifi/iwl-debug.h
Johannes Berg e312c24cf8 iwlwifi: automatically adjust sleep level 
Depending on required latency requested by pm_qos (via mac80211)
we can automatically adjust the sleep state. Also, mac80211 has
a user-visible dynamic sleep feature where we are supposed to
stay awake after sending/receiving frames to better receive
response frames to our packets, this can be integrated into the
sleep command.

Currently, and this patch doesn't change that yet, we default
to using sleep level 1 if PS is enabled. With a module parameter
to iwlcore, automatic adjustment to changing network latency
requirements can be enabled -- this isn't yet the default due
to requiring more testing.

The goal is to enable automatic adjustment and then go into the
deepest possible sleep state possible depending on the networking
latency requirements.

This patch does, however, enable IEEE80211_HW_SUPPORTS_DYNAMIC_PS
to avoid the double-timer (one in software and one in the device)
when transmitting -- the exact timeout may be ignored but that is
not of big concern.

Note also that we keep the hard-coded power indices around for
thermal throttling -- the specification of that calls for using
the specified power levels. Those can also be selected in debugfs
to allow easier testing of such parameters.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:50 -04:00

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/******************************************************************************
*
* Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License 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, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_debug_h__
#define __iwl_debug_h__
struct iwl_priv;
extern u32 iwl_debug_level;
#define IWL_ERR(p, f, a...) dev_err(&((p)->pci_dev->dev), f, ## a)
#define IWL_WARN(p, f, a...) dev_warn(&((p)->pci_dev->dev), f, ## a)
#define IWL_INFO(p, f, a...) dev_info(&((p)->pci_dev->dev), f, ## a)
#define IWL_CRIT(p, f, a...) dev_crit(&((p)->pci_dev->dev), f, ## a)
#define iwl_print_hex_error(priv, p, len) \
do { \
print_hex_dump(KERN_ERR, "iwl data: ", \
DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
} while (0)
#ifdef CONFIG_IWLWIFI_DEBUG
#define IWL_DEBUG(__priv, level, fmt, args...) \
do { \
if (iwl_get_debug_level(__priv) & (level)) \
dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \
"%c %s " fmt, in_interrupt() ? 'I' : 'U', \
__func__ , ## args); \
} while (0)
#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) \
do { \
if ((iwl_get_debug_level(__priv) & (level)) && net_ratelimit()) \
dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \
"%c %s " fmt, in_interrupt() ? 'I' : 'U', \
__func__ , ## args); \
} while (0)
#define iwl_print_hex_dump(priv, level, p, len) \
do { \
if (iwl_get_debug_level(priv) & level) \
print_hex_dump(KERN_DEBUG, "iwl data: ", \
DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
} while (0)
#ifdef CONFIG_IWLWIFI_DEBUGFS
struct iwl_debugfs {
const char *name;
struct dentry *dir_drv;
struct dentry *dir_data;
struct dentry *dir_debug;
struct dentry *dir_rf;
struct dir_data_files {
struct dentry *file_sram;
struct dentry *file_nvm;
struct dentry *file_stations;
struct dentry *file_log_event;
struct dentry *file_channels;
struct dentry *file_status;
struct dentry *file_interrupt;
struct dentry *file_qos;
struct dentry *file_thermal_throttling;
#ifdef CONFIG_IWLWIFI_LEDS
struct dentry *file_led;
#endif
struct dentry *file_disable_ht40;
struct dentry *file_sleep_level_override;
struct dentry *file_current_sleep_command;
} dbgfs_data_files;
struct dir_rf_files {
struct dentry *file_disable_sensitivity;
struct dentry *file_disable_chain_noise;
struct dentry *file_disable_tx_power;
} dbgfs_rf_files;
struct dir_debug_files {
struct dentry *file_rx_statistics;
struct dentry *file_tx_statistics;
struct dentry *file_traffic_log;
struct dentry *file_rx_queue;
struct dentry *file_tx_queue;
struct dentry *file_ucode_rx_stats;
struct dentry *file_ucode_tx_stats;
struct dentry *file_ucode_general_stats;
struct dentry *file_sensitivity;
struct dentry *file_chain_noise;
} dbgfs_debug_files;
u32 sram_offset;
u32 sram_len;
};
int iwl_dbgfs_register(struct iwl_priv *priv, const char *name);
void iwl_dbgfs_unregister(struct iwl_priv *priv);
#endif
#else
#define IWL_DEBUG(__priv, level, fmt, args...)
#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)
static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
void *p, u32 len)
{}
#endif /* CONFIG_IWLWIFI_DEBUG */
#ifndef CONFIG_IWLWIFI_DEBUGFS
static inline int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
{
return 0;
}
static inline void iwl_dbgfs_unregister(struct iwl_priv *priv)
{
}
#endif /* CONFIG_IWLWIFI_DEBUGFS */
/*
* To use the debug system:
*
* If you are defining a new debug classification, simply add it to the #define
* list here in the form of
*
* #define IWL_DL_xxxx VALUE
*
* where xxxx should be the name of the classification (for example, WEP).
*
* You then need to either add a IWL_xxxx_DEBUG() macro definition for your
* classification, or use IWL_DEBUG(IWL_DL_xxxx, ...) whenever you want
* to send output to that classification.
*
* The active debug levels can be accessed via files
*
* /sys/module/iwlagn/parameters/debug{50}
* /sys/class/net/wlan0/device/debug_level
*
* when CONFIG_IWLWIFI_DEBUG=y.
*/
/* 0x0000000F - 0x00000001 */
#define IWL_DL_INFO (1 << 0)
#define IWL_DL_MAC80211 (1 << 1)
#define IWL_DL_HCMD (1 << 2)
#define IWL_DL_STATE (1 << 3)
/* 0x000000F0 - 0x00000010 */
#define IWL_DL_MACDUMP (1 << 4)
#define IWL_DL_HCMD_DUMP (1 << 5)
#define IWL_DL_RADIO (1 << 7)
/* 0x00000F00 - 0x00000100 */
#define IWL_DL_POWER (1 << 8)
#define IWL_DL_TEMP (1 << 9)
#define IWL_DL_NOTIF (1 << 10)
#define IWL_DL_SCAN (1 << 11)
/* 0x0000F000 - 0x00001000 */
#define IWL_DL_ASSOC (1 << 12)
#define IWL_DL_DROP (1 << 13)
#define IWL_DL_TXPOWER (1 << 14)
#define IWL_DL_AP (1 << 15)
/* 0x000F0000 - 0x00010000 */
#define IWL_DL_FW (1 << 16)
#define IWL_DL_RF_KILL (1 << 17)
#define IWL_DL_FW_ERRORS (1 << 18)
#define IWL_DL_LED (1 << 19)
/* 0x00F00000 - 0x00100000 */
#define IWL_DL_RATE (1 << 20)
#define IWL_DL_CALIB (1 << 21)
#define IWL_DL_WEP (1 << 22)
#define IWL_DL_TX (1 << 23)
/* 0x0F000000 - 0x01000000 */
#define IWL_DL_RX (1 << 24)
#define IWL_DL_ISR (1 << 25)
#define IWL_DL_HT (1 << 26)
#define IWL_DL_IO (1 << 27)
/* 0xF0000000 - 0x10000000 */
#define IWL_DL_11H (1 << 28)
#define IWL_DL_STATS (1 << 29)
#define IWL_DL_TX_REPLY (1 << 30)
#define IWL_DL_QOS (1 << 31)
#define IWL_DEBUG_INFO(p, f, a...) IWL_DEBUG(p, IWL_DL_INFO, f, ## a)
#define IWL_DEBUG_MAC80211(p, f, a...) IWL_DEBUG(p, IWL_DL_MAC80211, f, ## a)
#define IWL_DEBUG_MACDUMP(p, f, a...) IWL_DEBUG(p, IWL_DL_MACDUMP, f, ## a)
#define IWL_DEBUG_TEMP(p, f, a...) IWL_DEBUG(p, IWL_DL_TEMP, f, ## a)
#define IWL_DEBUG_SCAN(p, f, a...) IWL_DEBUG(p, IWL_DL_SCAN, f, ## a)
#define IWL_DEBUG_RX(p, f, a...) IWL_DEBUG(p, IWL_DL_RX, f, ## a)
#define IWL_DEBUG_TX(p, f, a...) IWL_DEBUG(p, IWL_DL_TX, f, ## a)
#define IWL_DEBUG_ISR(p, f, a...) IWL_DEBUG(p, IWL_DL_ISR, f, ## a)
#define IWL_DEBUG_LED(p, f, a...) IWL_DEBUG(p, IWL_DL_LED, f, ## a)
#define IWL_DEBUG_WEP(p, f, a...) IWL_DEBUG(p, IWL_DL_WEP, f, ## a)
#define IWL_DEBUG_HC(p, f, a...) IWL_DEBUG(p, IWL_DL_HCMD, f, ## a)
#define IWL_DEBUG_HC_DUMP(p, f, a...) IWL_DEBUG(p, IWL_DL_HCMD_DUMP, f, ## a)
#define IWL_DEBUG_CALIB(p, f, a...) IWL_DEBUG(p, IWL_DL_CALIB, f, ## a)
#define IWL_DEBUG_FW(p, f, a...) IWL_DEBUG(p, IWL_DL_FW, f, ## a)
#define IWL_DEBUG_RF_KILL(p, f, a...) IWL_DEBUG(p, IWL_DL_RF_KILL, f, ## a)
#define IWL_DEBUG_DROP(p, f, a...) IWL_DEBUG(p, IWL_DL_DROP, f, ## a)
#define IWL_DEBUG_DROP_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_DROP, f, ## a)
#define IWL_DEBUG_AP(p, f, a...) IWL_DEBUG(p, IWL_DL_AP, f, ## a)
#define IWL_DEBUG_TXPOWER(p, f, a...) IWL_DEBUG(p, IWL_DL_TXPOWER, f, ## a)
#define IWL_DEBUG_IO(p, f, a...) IWL_DEBUG(p, IWL_DL_IO, f, ## a)
#define IWL_DEBUG_RATE(p, f, a...) IWL_DEBUG(p, IWL_DL_RATE, f, ## a)
#define IWL_DEBUG_RATE_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_RATE, f, ## a)
#define IWL_DEBUG_NOTIF(p, f, a...) IWL_DEBUG(p, IWL_DL_NOTIF, f, ## a)
#define IWL_DEBUG_ASSOC(p, f, a...) \
IWL_DEBUG(p, IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
#define IWL_DEBUG_ASSOC_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
#define IWL_DEBUG_HT(p, f, a...) IWL_DEBUG(p, IWL_DL_HT, f, ## a)
#define IWL_DEBUG_STATS(p, f, a...) IWL_DEBUG(p, IWL_DL_STATS, f, ## a)
#define IWL_DEBUG_STATS_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_STATS, f, ## a)
#define IWL_DEBUG_TX_REPLY(p, f, a...) IWL_DEBUG(p, IWL_DL_TX_REPLY, f, ## a)
#define IWL_DEBUG_TX_REPLY_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_TX_REPLY, f, ## a)
#define IWL_DEBUG_QOS(p, f, a...) IWL_DEBUG(p, IWL_DL_QOS, f, ## a)
#define IWL_DEBUG_RADIO(p, f, a...) IWL_DEBUG(p, IWL_DL_RADIO, f, ## a)
#define IWL_DEBUG_POWER(p, f, a...) IWL_DEBUG(p, IWL_DL_POWER, f, ## a)
#define IWL_DEBUG_11H(p, f, a...) IWL_DEBUG(p, IWL_DL_11H, f, ## a)
#endif
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