From fe1b7d6c28885642dc3dd59d3710ae2b283aa486 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Thu, 21 Jun 2018 09:42:12 +0300 Subject: [PATCH] iwlwifi: add support for triggering ini triggers Add support for ini triggers. Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 59 +++++++++++++++++-- drivers/net/wireless/intel/iwlwifi/fw/dbg.h | 39 +++++++++++- .../net/wireless/intel/iwlwifi/fw/runtime.h | 2 +- .../net/wireless/intel/iwlwifi/mvm/debugfs.c | 2 +- 4 files changed, 91 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c index 58771e253396..b17298ba7dc0 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c @@ -1329,10 +1329,10 @@ int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt, } IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect_desc); -int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt, - enum iwl_fw_dbg_trigger trig, - const char *str, size_t len, - struct iwl_fw_dbg_trigger_tlv *trigger) +int _iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt, + enum iwl_fw_dbg_trigger trig, + const char *str, size_t len, + struct iwl_fw_dbg_trigger_tlv *trigger) { struct iwl_fw_dump_desc *desc; unsigned int delay = 0; @@ -1367,6 +1367,47 @@ int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt, return iwl_fw_dbg_collect_desc(fwrt, desc, monitor_only, delay); } +IWL_EXPORT_SYMBOL(_iwl_fw_dbg_collect); + +int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt, + u32 id, const char *str, size_t len) +{ + struct iwl_fw_dump_desc *desc; + u32 occur, delay; + + if (!fwrt->trans->ini_valid) + return _iwl_fw_dbg_collect(fwrt, id, str, len, NULL); + + if (id == FW_DBG_TRIGGER_USER) + id = IWL_FW_TRIGGER_ID_USER_TRIGGER; + + if (WARN_ON(!fwrt->dump.active_trigs[id].active)) + return -EINVAL; + + delay = le32_to_cpu(fwrt->dump.active_trigs[id].conf->ignore_consec); + occur = le32_to_cpu(fwrt->dump.active_trigs[id].conf->occurrences); + if (!occur) + return 0; + + if (le32_to_cpu(fwrt->dump.active_trigs[id].conf->force_restart)) { + IWL_WARN(fwrt, "Force restart: trigger %d fired.\n", id); + iwl_force_nmi(fwrt->trans); + return 0; + } + + desc = kzalloc(sizeof(*desc) + len, GFP_ATOMIC); + if (!desc) + return -ENOMEM; + + occur--; + fwrt->dump.active_trigs[id].conf->occurrences = cpu_to_le32(occur); + + desc->len = len; + desc->trig_desc.type = cpu_to_le32(id); + memcpy(desc->trig_desc.data, str, len); + + return iwl_fw_dbg_collect_desc(fwrt, desc, true, delay); +} IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect); int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt, @@ -1395,8 +1436,8 @@ int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt, len = strlen(buf) + 1; } - ret = iwl_fw_dbg_collect(fwrt, le32_to_cpu(trigger->id), buf, len, - trigger); + ret = _iwl_fw_dbg_collect(fwrt, le32_to_cpu(trigger->id), buf, len, + trigger); if (ret) return ret; @@ -1668,6 +1709,12 @@ static void iwl_fw_dbg_update_triggers(struct iwl_fw_runtime *fwrt, active->conf = trig; } + /* Since zero means infinity - just set to -1 */ + if (!le32_to_cpu(trig->occurrences)) + trig->occurrences = cpu_to_le32(-1); + if (!le32_to_cpu(trig->ignore_consec)) + trig->ignore_consec = cpu_to_le32(-1); + iter += sizeof(*trig) + le32_to_cpu(trig->num_regions) * sizeof(__le32); diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h index 324ee063224d..c14e4614a2ea 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h @@ -108,10 +108,12 @@ void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt); int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt, const struct iwl_fw_dump_desc *desc, bool monitor_only, unsigned int delay); +int _iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt, + enum iwl_fw_dbg_trigger trig, + const char *str, size_t len, + struct iwl_fw_dbg_trigger_tlv *trigger); int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt, - enum iwl_fw_dbg_trigger trig, - const char *str, size_t len, - struct iwl_fw_dbg_trigger_tlv *trigger); + u32 id, const char *str, size_t len); int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt, struct iwl_fw_dbg_trigger_tlv *trigger, const char *fmt, ...) __printf(3, 4); @@ -213,6 +215,37 @@ _iwl_fw_dbg_trigger_on(struct iwl_fw_runtime *fwrt, _iwl_fw_dbg_trigger_on((fwrt), (wdev), (id)); \ }) +static inline bool +_iwl_fw_ini_trigger_on(struct iwl_fw_runtime *fwrt, + const enum iwl_fw_dbg_trigger id) +{ + struct iwl_fw_ini_active_triggers *trig = &fwrt->dump.active_trigs[id]; + u32 ms; + + if (!fwrt->trans->ini_valid) + return false; + + if (!trig || !trig->active) + return false; + + ms = le32_to_cpu(trig->conf->ignore_consec); + if (ms) + ms /= USEC_PER_MSEC; + + if (iwl_fw_dbg_no_trig_window(fwrt, id, ms)) { + IWL_WARN(fwrt, "Trigger %d fired in no-collect window\n", id); + return false; + } + + return true; +} + +#define iwl_fw_ini_trigger_on(fwrt, wdev, id) ({ \ + BUILD_BUG_ON(!__builtin_constant_p(id)); \ + BUILD_BUG_ON((id) >= IWL_FW_TRIGGER_ID_NUM); \ + _iwl_fw_ini_trigger_on((fwrt), (wdev), (id)); \ +}) + static inline void _iwl_fw_dbg_trigger_simple_stop(struct iwl_fw_runtime *fwrt, struct wireless_dev *wdev, diff --git a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h index 204ad5bfd506..77845de30c5c 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h @@ -138,7 +138,7 @@ struct iwl_fw_runtime { u8 conf; /* ts of the beginning of a non-collect fw dbg data period */ - unsigned long non_collect_ts_start[FW_DBG_TRIGGER_MAX - 1]; + unsigned long non_collect_ts_start[IWL_FW_TRIGGER_ID_NUM - 1]; u32 *d3_debug_data; struct iwl_fw_ini_active_regs active_regs[IWL_FW_INI_MAX_REGION_ID]; struct iwl_fw_ini_active_triggers active_trigs[IWL_FW_TRIGGER_ID_NUM]; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index 3b6b3d8fb961..52c361a6124c 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -1284,7 +1284,7 @@ static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, return 0; iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, - (count - 1), NULL); + (count - 1)); iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);