diff options
| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-12-04 10:07:47 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-12-28 20:00:13 +0200 |
| commit | 8c23f95cca0efd2b6e0a8fedd9c9285b352579c8 (patch) | |
| tree | 5eab328d64d5f5b46c1f1a7e5546f1485ae16905 /drivers/net/wireless/iwlwifi/mvm/fw.c | |
| parent | b7aaeae478d352bca5e877f97898a9668c2c74fb (diff) | |
iwlwifi: mvm: add debugfs to trigger fw debug logs collection
This allows to collect the logs even if the firmware hasn't
crashed. Of course, crashing the firmware is an option, but
this is easier and nicer.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/fw.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/fw.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c index 60d0c9fdc2e7..534ee3123a63 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/iwlwifi/mvm/fw.c @@ -70,6 +70,7 @@ #include "iwl-debug.h" #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */ #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */ +#include "iwl-prph.h" #include "iwl-eeprom-parse.h" #include "mvm.h" @@ -399,8 +400,26 @@ out: return ret; } -static int iwl_mvm_start_fw_dbg_conf(struct iwl_mvm *mvm, - enum iwl_fw_dbg_conf conf_id) +void iwl_mvm_fw_dbg_collect(struct iwl_mvm *mvm) +{ + lockdep_assert_held(&mvm->mutex); + + /* stop recording */ + if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) { + iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100); + } else { + iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0); + iwl_write_prph(mvm->trans, DBGC_OUT_CTRL, 0); + } + + iwl_mvm_fw_error_dump(mvm); + + /* start recording again */ + WARN_ON_ONCE(mvm->fw->dbg_dest_tlv && + iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf)); +} + +int iwl_mvm_start_fw_dbg_conf(struct iwl_mvm *mvm, enum iwl_fw_dbg_conf conf_id) { u8 *ptr; int ret; |