From 2655e314c4b204966008689eaf3e87ba1f38d55c Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 31 Jan 2012 21:08:37 -0800 Subject: iwlwifi: trace debug messages Make iwlwifi record all debug messages into tracing, even if debug_level is not enabled. Due to the lack of APIs, the debug messages are now recorded up to a max length of 100, the only one above that is the RXON which is not needed if you trace the commands as well as it only dumps the command contents. Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi W Guy --- drivers/net/wireless/iwlwifi/iwl-debug.c | 127 +++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 drivers/net/wireless/iwlwifi/iwl-debug.c (limited to 'drivers/net/wireless/iwlwifi/iwl-debug.c') diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.c b/drivers/net/wireless/iwlwifi/iwl-debug.c new file mode 100644 index 000000000000..4bc2e70051d6 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-debug.c @@ -0,0 +1,127 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved. + * + * 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.GPL. + * + * Contact Information: + * Intel Linux Wireless + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ + +#include +#include "iwl-debug.h" + +#define __iwl_fn(fn) \ +void __iwl_ ##fn(struct device *dev, const char *fmt, ...) \ +{ \ + struct va_format vaf = { \ + .fmt = fmt, \ + }; \ + va_list args; \ + \ + va_start(args, fmt); \ + vaf.va = &args; \ + dev_ ##fn(dev, "%pV", &vaf); \ + trace_iwlwifi_ ##fn(&vaf); \ + va_end(args); \ +} + +__iwl_fn(warn) +__iwl_fn(info) +__iwl_fn(crit) + +void __iwl_err(struct device *dev, bool rfkill_prefix, bool trace_only, + const char *fmt, ...) +{ + struct va_format vaf = { + .fmt = fmt, + }; + va_list args; + + va_start(args, fmt); + vaf.va = &args; + if (!trace_only) { + if (rfkill_prefix) + dev_err(dev, "(RFKILL) %pV", &vaf); + else + dev_err(dev, "%pV", &vaf); + } + trace_iwlwifi_err(&vaf); + va_end(args); +} + +#if defined(CONFIG_IWLWIFI_DEBUG) || defined(CONFIG_IWLWIFI_DEVICE_TRACING) +void __iwl_dbg(struct iwl_shared *shared, struct device *dev, + u32 level, bool limit, const char *function, + const char *fmt, ...) +{ + struct va_format vaf = { + .fmt = fmt, + }; + va_list args; + + va_start(args, fmt); + vaf.va = &args; +#ifdef CONFIG_IWLWIFI_DEBUG + if (iwl_get_debug_level(shared) & level && + (!limit || net_ratelimit())) + dev_err(dev, "%c %s %pV", in_interrupt() ? 'I' : 'U', + function, &vaf); +#endif + trace_iwlwifi_dbg(level, in_interrupt(), function, &vaf); + va_end(args); +} +#endif -- cgit v1.2.3 From a8bceb392a739321ec20d03a91a86ebdde9c07bb Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 5 Mar 2012 11:24:30 -0800 Subject: iwlwifi: remove per-device debug level There's no need for the per-device debug level that we expose in debugfs since the module parameter is writable in sysfs. At the same time, simplify code by changing iwl_get_debug_level(shrd) & IWL_DL_ISR) to iwl_have_debug_level(IWL_DL_ISR) Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 10 ++--- drivers/net/wireless/iwlwifi/iwl-debug.c | 4 +- drivers/net/wireless/iwlwifi/iwl-debug.h | 12 +++--- drivers/net/wireless/iwlwifi/iwl-debugfs.c | 55 +----------------------- drivers/net/wireless/iwlwifi/iwl-shared.h | 27 +----------- drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c | 10 ++--- 6 files changed, 22 insertions(+), 96 deletions(-) (limited to 'drivers/net/wireless/iwlwifi/iwl-debug.c') diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 8551c95e7437..8d25fd6be645 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -836,7 +836,7 @@ static void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand) unsigned long reload_jiffies; #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(priv->shrd) & IWL_DL_FW_ERRORS) + if (iwl_have_debug_level(IWL_DL_FW_ERRORS)) iwl_print_rx_config_cmd(priv, IWL_RXON_CTX_BSS); #endif @@ -1004,7 +1004,7 @@ int iwl_alloc_traffic_mem(struct iwl_priv *priv) { u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE; - if (iwl_get_debug_level(priv->shrd) & IWL_DL_TX) { + if (iwl_have_debug_level(IWL_DL_TX)) { if (!priv->tx_traffic) { priv->tx_traffic = kzalloc(traffic_size, GFP_KERNEL); @@ -1012,7 +1012,7 @@ int iwl_alloc_traffic_mem(struct iwl_priv *priv) return -ENOMEM; } } - if (iwl_get_debug_level(priv->shrd) & IWL_DL_RX) { + if (iwl_have_debug_level(IWL_DL_RX)) { if (!priv->rx_traffic) { priv->rx_traffic = kzalloc(traffic_size, GFP_KERNEL); @@ -1039,7 +1039,7 @@ void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv, __le16 fc; u16 len; - if (likely(!(iwl_get_debug_level(priv->shrd) & IWL_DL_TX))) + if (likely(!iwl_have_debug_level(IWL_DL_TX))) return; if (!priv->tx_traffic) @@ -1063,7 +1063,7 @@ void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv, __le16 fc; u16 len; - if (likely(!(iwl_get_debug_level(priv->shrd) & IWL_DL_RX))) + if (likely(!iwl_have_debug_level(IWL_DL_RX))) return; if (!priv->rx_traffic) diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.c b/drivers/net/wireless/iwlwifi/iwl-debug.c index 4bc2e70051d6..059efabda184 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.c +++ b/drivers/net/wireless/iwlwifi/iwl-debug.c @@ -104,7 +104,7 @@ void __iwl_err(struct device *dev, bool rfkill_prefix, bool trace_only, } #if defined(CONFIG_IWLWIFI_DEBUG) || defined(CONFIG_IWLWIFI_DEVICE_TRACING) -void __iwl_dbg(struct iwl_shared *shared, struct device *dev, +void __iwl_dbg(struct device *dev, u32 level, bool limit, const char *function, const char *fmt, ...) { @@ -116,7 +116,7 @@ void __iwl_dbg(struct iwl_shared *shared, struct device *dev, va_start(args, fmt); vaf.va = &args; #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(shared) & level && + if (iwl_have_debug_level(level) && (!limit || net_ratelimit())) dev_err(dev, "%c %s %pV", in_interrupt() ? 'I' : 'U', function, &vaf); diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index 01b23303d736..163d259198be 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -47,12 +47,12 @@ void __iwl_crit(struct device *dev, const char *fmt, ...); #define IWL_CRIT(m, f, a...) __iwl_crit(trans(m)->dev, f, ## a) #if defined(CONFIG_IWLWIFI_DEBUG) || defined(CONFIG_IWLWIFI_DEVICE_TRACING) -void __iwl_dbg(struct iwl_shared *shared, struct device *dev, +void __iwl_dbg(struct device *dev, u32 level, bool limit, const char *function, const char *fmt, ...); #else static inline void -__iwl_dbg(struct iwl_shared *shared, struct device *dev, +__iwl_dbg(struct device *dev, u32 level, bool limit, const char *function, const char *fmt, ...) {} @@ -65,14 +65,14 @@ do { \ } while (0) #define IWL_DEBUG(m, level, fmt, args...) \ - __iwl_dbg((m)->shrd, trans(m)->dev, level, false, __func__, fmt, ##args) + __iwl_dbg(trans(m)->dev, level, false, __func__, fmt, ##args) #define IWL_DEBUG_LIMIT(m, level, fmt, args...) \ - __iwl_dbg((m)->shrd, trans(m)->dev, level, true, __func__, fmt, ##args) + __iwl_dbg(trans(m)->dev, level, true, __func__, fmt, ##args) #ifdef CONFIG_IWLWIFI_DEBUG #define iwl_print_hex_dump(m, level, p, len) \ do { \ - if (iwl_get_debug_level((m)->shrd) & level) \ + if (iwl_have_debug_level(level)) \ print_hex_dump(KERN_DEBUG, "iwl data: ", \ DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \ } while (0) @@ -82,7 +82,7 @@ do { \ IWL_ERR(m, fmt, ##args); \ else \ __iwl_err(trans(m)->dev, true, \ - !(iwl_get_debug_level((m)->shrd) & IWL_DL_RADIO),\ + !iwl_have_debug_level(IWL_DL_RADIO), \ fmt, ##args); \ } while (0) #else diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index 628af563e4e1..dd502e82e410 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -845,8 +845,7 @@ static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, IWL_ERR(priv, "Can not allocate buffer\n"); return -ENOMEM; } - if (priv->tx_traffic && - (iwl_get_debug_level(priv->shrd) & IWL_DL_TX)) { + if (priv->tx_traffic && iwl_have_debug_level(IWL_DL_TX)) { ptr = priv->tx_traffic; pos += scnprintf(buf + pos, bufsz - pos, "Tx Traffic idx: %u\n", priv->tx_traffic_idx); @@ -864,8 +863,7 @@ static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, } } - if (priv->rx_traffic && - (iwl_get_debug_level(priv->shrd) & IWL_DL_RX)) { + if (priv->rx_traffic && iwl_have_debug_level(IWL_DL_RX)) { ptr = priv->rx_traffic; pos += scnprintf(buf + pos, bufsz - pos, "Rx Traffic idx: %u\n", priv->rx_traffic_idx); @@ -2507,52 +2505,6 @@ DEBUGFS_READ_WRITE_FILE_OPS(protection_mode); DEBUGFS_READ_FILE_OPS(reply_tx_error); DEBUGFS_WRITE_FILE_OPS(echo_test); -#ifdef CONFIG_IWLWIFI_DEBUG -static ssize_t iwl_dbgfs_debug_level_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - struct iwl_shared *shrd = priv->shrd; - char buf[11]; - int len; - - len = scnprintf(buf, sizeof(buf), "0x%.8x", - iwl_get_debug_level(shrd)); - - return simple_read_from_buffer(user_buf, count, ppos, buf, len); -} - -static ssize_t iwl_dbgfs_debug_level_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - struct iwl_shared *shrd = priv->shrd; - char buf[11]; - unsigned long val; - int ret; - - if (count > sizeof(buf)) - return -EINVAL; - - memset(buf, 0, sizeof(buf)); - if (copy_from_user(buf, user_buf, count)) - return -EFAULT; - - ret = strict_strtoul(buf, 0, &val); - if (ret) - return ret; - - shrd->dbg_level_dev = val; - if (iwl_alloc_traffic_mem(priv)) - IWL_ERR(priv, "Not enough memory to generate traffic log\n"); - - return count; -} -DEBUGFS_READ_WRITE_FILE_OPS(debug_level); -#endif /* CONFIG_IWLWIFI_DEBUG */ - /* * Create the debugfs files and directories * @@ -2617,9 +2569,6 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR); if (iwl_advanced_bt_coexist(priv)) DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR); -#ifdef CONFIG_IWLWIFI_DEBUG - DEBUGFS_ADD_FILE(debug_level, dir_debug, S_IRUSR | S_IWUSR); -#endif DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, &priv->disable_sens_cal); diff --git a/drivers/net/wireless/iwlwifi/iwl-shared.h b/drivers/net/wireless/iwlwifi/iwl-shared.h index 7720fc34c278..239dfbc57bee 100644 --- a/drivers/net/wireless/iwlwifi/iwl-shared.h +++ b/drivers/net/wireless/iwlwifi/iwl-shared.h @@ -346,8 +346,6 @@ struct iwl_cfg { /** * struct iwl_shared - shared fields for all the layers of the driver * - * @dbg_level_dev: dbg level set per device. Prevails on - * iwlagn_mod_params.debug_level if set (!= 0) * @ucode_owner: IWL_OWNERSHIP_* * @cmd_queue: command queue number * @status: STATUS_* @@ -370,10 +368,6 @@ struct iwl_cfg { * @device_pointers: pointers to ucode event tables */ struct iwl_shared { -#ifdef CONFIG_IWLWIFI_DEBUG - u32 dbg_level_dev; -#endif /* CONFIG_IWLWIFI_DEBUG */ - #define IWL_OWNERSHIP_DRIVER 0 #define IWL_OWNERSHIP_TM 1 u8 ucode_owner; @@ -417,27 +411,10 @@ struct iwl_shared { #define trans(_m) ((_m)->shrd->trans) #define hw_params(_m) ((_m)->shrd->hw_params) -#ifdef CONFIG_IWLWIFI_DEBUG -/* - * 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_shared *shrd) -{ - if (shrd->dbg_level_dev) - return shrd->dbg_level_dev; - else - return iwlagn_mod_params.debug_level; -} -#else -static inline u32 iwl_get_debug_level(struct iwl_shared *shrd) +static inline bool iwl_have_debug_level(u32 level) { - return iwlagn_mod_params.debug_level; + return iwlagn_mod_params.debug_level & level; } -#endif static inline void iwl_free_pages(struct iwl_shared *shrd, unsigned long page) { diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c index 2c910fddaaf6..6495945637b9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c @@ -881,7 +881,7 @@ int iwl_dump_nic_event_log(struct iwl_trans *trans, bool full_log, } #ifdef CONFIG_IWLWIFI_DEBUG - if (!(iwl_get_debug_level(trans->shrd) & IWL_DL_FW_ERRORS) && !full_log) + if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log) size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; #else @@ -901,7 +901,7 @@ int iwl_dump_nic_event_log(struct iwl_trans *trans, bool full_log, if (!*buf) return -ENOMEM; } - if ((iwl_get_debug_level(trans->shrd) & IWL_DL_FW_ERRORS) || full_log) { + if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) { /* * if uCode has wrapped back to top of log, * start at the oldest entry, @@ -960,7 +960,7 @@ void iwl_irq_tasklet(struct iwl_trans *trans) inta = trans_pcie->inta; #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(trans->shrd) & IWL_DL_ISR) { + if (iwl_have_debug_level(IWL_DL_ISR)) { /* just for debug */ inta_mask = iwl_read32(trans, CSR_INT_MASK); IWL_DEBUG_ISR(trans, "inta 0x%08x, enabled 0x%08x\n ", @@ -989,7 +989,7 @@ void iwl_irq_tasklet(struct iwl_trans *trans) } #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(trans->shrd) & (IWL_DL_ISR)) { + if (iwl_have_debug_level(IWL_DL_ISR)) { /* NIC fires this, but we don't use it, redundant with WAKEUP */ if (inta & CSR_INT_BIT_SCD) { IWL_DEBUG_ISR(trans, "Scheduler finished to transmit " @@ -1301,7 +1301,7 @@ static irqreturn_t iwl_isr(int irq, void *data) } #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(trans->shrd) & (IWL_DL_ISR)) { + if (iwl_have_debug_level(IWL_DL_ISR)) { inta_fh = iwl_read32(trans, CSR_FH_INT_STATUS); IWL_DEBUG_ISR(trans, "ISR inta 0x%08x, enabled 0x%08x, " "fh 0x%08x\n", inta, inta_mask, inta_fh); -- cgit v1.2.3