Commit 3d816c77 authored by Reinette Chatre's avatar Reinette Chatre Committed by John W. Linville
Browse files

iwlwifi: re-introduce per device debugging



Commit "iwlwifi: make debug level more user friendly" cleaned up the
debug level handling. In doing so it created a single global debug
level for all devices. Some setups do consits of more that one iwlwifi
device and in these setups there is a requirement that debug levels
should be unique per device.

We now re-introduce the per device debugging while maintaining the
cleanup effort of the previous patch.

The maintain the global debug level and now introduce a per-device debug
level that will be used if it (the per-device debug level) is set. The
per-device debug level can be controlled via the debug_level sysfs file
while the global debug level is controlled by the debug module parameter.
Signed-off-by: default avatarReinette Chatre <reinette.chatre@intel.com>
Acked-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 34b921cf
......@@ -502,14 +502,14 @@ static void _iwl3945_dbg_report_frame(struct iwl_priv *priv,
}
}
if (print_dump)
iwl_print_hex_dump(IWL_DL_RX, data, length);
iwl_print_hex_dump(priv, IWL_DL_RX, data, length);
}
static void iwl3945_dbg_report_frame(struct iwl_priv *priv,
struct iwl_rx_packet *pkt,
struct ieee80211_hdr *header, int group100)
{
if (iwl_debug_level & IWL_DL_RX)
if (iwl_get_debug_level(priv) & IWL_DL_RX)
_iwl3945_dbg_report_frame(priv, pkt, header, group100);
}
......
......@@ -46,7 +46,7 @@
#include "iwl-sta.h"
static int iwl4965_send_tx_power(struct iwl_priv *priv);
static int iwl4965_hw_get_temperature(const struct iwl_priv *priv);
static int iwl4965_hw_get_temperature(struct iwl_priv *priv);
/* Highest firmware API version supported */
#define IWL4965_UCODE_API_MAX 2
......@@ -1680,7 +1680,7 @@ static s32 sign_extend(u32 oper, int index)
*
* A return of <0 indicates bogus data in the statistics
*/
static int iwl4965_hw_get_temperature(const struct iwl_priv *priv)
static int iwl4965_hw_get_temperature(struct iwl_priv *priv)
{
s32 temperature;
s32 vt;
......
......@@ -896,7 +896,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & IWL_DL_ISR) {
if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
/* just for debug */
inta_mask = iwl_read32(priv, CSR_INT_MASK);
IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
......@@ -931,7 +931,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
}
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & (IWL_DL_ISR)) {
if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
/* NIC fires this, but we don't use it, redundant with WAKEUP */
if (inta & CSR_INT_BIT_SCD) {
IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
......@@ -1045,7 +1045,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
iwl_enable_interrupts(priv);
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & (IWL_DL_ISR)) {
if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
inta = iwl_read32(priv, CSR_INT);
inta_mask = iwl_read32(priv, CSR_INT_MASK);
inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
......@@ -1076,7 +1076,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
inta = priv->inta;
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & IWL_DL_ISR) {
if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
/* just for debug */
inta_mask = iwl_read32(priv, CSR_INT_MASK);
IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ",
......@@ -1104,7 +1104,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
}
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & (IWL_DL_ISR)) {
if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
/* NIC fires this, but we don't use it, redundant with WAKEUP */
if (inta & CSR_INT_BIT_SCD) {
IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
......@@ -2455,15 +2455,15 @@ static int iwl_mac_get_stats(struct ieee80211_hw *hw,
*
* See the level definitions in iwl for details.
*
* FIXME This file can be deprecated as the module parameter is
* writable and users can thus also change the debug level
* using the /sys/module/iwl3945/parameters/debug file.
* The debug_level being managed using sysfs below is a per device debug
* level that is used instead of the global debug level if it (the per
* device debug level) is set.
*/
static ssize_t show_debug_level(struct device *d,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "0x%08X\n", iwl_debug_level);
struct iwl_priv *priv = dev_get_drvdata(d);
return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv));
}
static ssize_t store_debug_level(struct device *d,
struct device_attribute *attr,
......@@ -2477,7 +2477,7 @@ static ssize_t store_debug_level(struct device *d,
if (ret)
IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
else
iwl_debug_level = val;
priv->debug_level = val;
return strnlen(buf, count);
}
......
......@@ -1278,7 +1278,7 @@ static void iwl_print_rx_config_cmd(struct iwl_priv *priv)
struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
iwl_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n",
......@@ -1508,7 +1508,7 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & IWL_DL_FW_ERRORS) {
if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) {
iwl_dump_nic_error_log(priv);
iwl_dump_nic_event_log(priv);
iwl_print_rx_config_cmd(priv);
......@@ -1985,7 +1985,7 @@ static irqreturn_t iwl_isr(int irq, void *data)
}
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & (IWL_DL_ISR)) {
if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, "
"fh 0x%08x\n", inta, inta_mask, inta_fh);
......@@ -2310,7 +2310,7 @@ void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
"notification for %s:\n",
le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
iwl_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
}
EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
......
......@@ -46,7 +46,7 @@ do { \
#ifdef CONFIG_IWLWIFI_DEBUG
#define IWL_DEBUG(__priv, level, fmt, args...) \
do { \
if (iwl_debug_level & (level)) \
if (iwl_get_debug_level(__priv) & (level)) \
dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \
"%c %s " fmt, in_interrupt() ? 'I' : 'U', \
__func__ , ## args); \
......@@ -54,15 +54,15 @@ do { \
#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) \
do { \
if ((iwl_debug_level & (level)) && net_ratelimit()) \
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(level, p, len) \
#define iwl_print_hex_dump(priv, level, p, len) \
do { \
if (iwl_debug_level & level) \
if (iwl_get_debug_level(priv) & level) \
print_hex_dump(KERN_DEBUG, "iwl data: ", \
DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
} while (0)
......@@ -106,7 +106,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv);
#else
#define IWL_DEBUG(__priv, level, fmt, args...)
#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)
static inline void iwl_print_hex_dump(int level, void *p, u32 len)
static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
void *p, u32 len)
{}
#endif /* CONFIG_IWLWIFI_DEBUG */
......
......@@ -1175,6 +1175,8 @@ struct iwl_priv {
#ifdef CONFIG_IWLWIFI_DEBUG
/* debugging info */
u32 debug_level; /* per device debugging will override global
iwl_debug_level if set */
u32 framecnt_to_us;
atomic_t restrict_refcnt;
bool disable_ht40;
......@@ -1211,8 +1213,27 @@ static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
#ifdef CONFIG_IWLWIFI_DEBUG
const char *iwl_get_tx_fail_reason(u32 status);
/*
* iwl_get_debug_level: Return active debug level for device
*
* Using sysfs it is possible to set per device debug level. This debug
* level will be used if set, otherwise the global debug level which can be
* set via module parameter is used.
*/
static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
{
if (priv->debug_level)
return priv->debug_level;
else
return iwl_debug_level;
}
#else
static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
{
return iwl_debug_level;
}
#endif
......
......@@ -645,7 +645,7 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
u32 tsf_low;
int rssi;
if (likely(!(iwl_debug_level & IWL_DL_RX)))
if (likely(!(iwl_get_debug_level(priv) & IWL_DL_RX)))
return;
/* MAC header */
......@@ -741,7 +741,7 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
}
}
if (print_dump)
iwl_print_hex_dump(IWL_DL_RX, header, length);
iwl_print_hex_dump(priv, IWL_DL_RX, header, length);
}
#endif
......@@ -1060,7 +1060,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
/* Set "1" to report good data frames in groups of 100 */
#ifdef CONFIG_IWLWIFI_DEBUG
if (unlikely(iwl_debug_level & IWL_DL_RX))
if (unlikely(iwl_get_debug_level(priv) & IWL_DL_RX))
iwl_dbg_report_frame(priv, rx_start, len, header, 1);
#endif
IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, noise %d, qual %d, TSF %llu\n",
......
......@@ -1088,7 +1088,7 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
"Defaulting to broadcast...\n",
hdr->addr1);
iwl_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
return priv->hw_params.bcast_sta_id;
default:
......
......@@ -884,8 +884,8 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
le16_to_cpu(out_cmd->hdr.sequence));
IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx_cmd->tx_flags));
iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
/* Set up entry for this TFD in Tx byte-count array */
if (info->flags & IEEE80211_TX_CTL_AMPDU)
......
......@@ -614,8 +614,8 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
le16_to_cpu(out_cmd->hdr.sequence));
IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx->tx_flags));
iwl_print_hex_dump(IWL_DL_TX, tx, sizeof(*tx));
iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx->hdr,
iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx));
iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr,
ieee80211_hdrlen(fc));
/*
......@@ -1646,7 +1646,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & IWL_DL_ISR) {
if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
/* just for debug */
inta_mask = iwl_read32(priv, CSR_INT_MASK);
IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
......@@ -1681,7 +1681,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
}
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & (IWL_DL_ISR)) {
if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
/* NIC fires this, but we don't use it, redundant with WAKEUP */
if (inta & CSR_INT_BIT_SCD) {
IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
......@@ -1760,7 +1760,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
iwl_enable_interrupts(priv);
#ifdef CONFIG_IWLWIFI_DEBUG
if (iwl_debug_level & (IWL_DL_ISR)) {
if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
inta = iwl_read32(priv, CSR_INT);
inta_mask = iwl_read32(priv, CSR_INT_MASK);
inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
......@@ -3311,14 +3311,15 @@ static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
*
* See the level definitions in iwl for details.
*
* FIXME This file can be deprecated as the module parameter is
* writable and users can thus also change the debug level
* using the /sys/module/iwl3945/parameters/debug file.
* The debug_level being managed using sysfs below is a per device debug
* level that is used instead of the global debug level if it (the per
* device debug level) is set.
*/
static ssize_t show_debug_level(struct device *d,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "0x%08X\n", iwl_debug_level);
struct iwl_priv *priv = dev_get_drvdata(d);
return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv));
}
static ssize_t store_debug_level(struct device *d,
struct device_attribute *attr,
......@@ -3332,7 +3333,7 @@ static ssize_t store_debug_level(struct device *d,
if (ret)
IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
else
iwl_debug_level = val;
priv->debug_level = val;
return strnlen(buf, count);
}
......
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